KR101942233B1 - Front suspension fork for bicycle - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bicycle suspension fork. More particularly, the present invention relates to a bicycle front suspension fork with shock buffering and height adjustment of the bicycle front wheel.
A damper regulator for controlling the damper is disposed inside the head tube at the lower side of the bearing mounting portion and the damper regulator is disposed inside the head tube at the lower portion of the bearing mounting portion, The damper regulator is coupled to the inside of the head tube so that the damper regulator is coupled to the damper cylinder of the damper regulator while the damper regulator is coupled to the damper cylinder of the damper regulator, A compression fluid is stored in the front fork while the front fork supporting the bicycle front wheel is engaged; Wherein the damper regulator is divided into an air pressure chamber and an oil damper chamber on the basis of a piston provided on the damper regulator, and an air chamber and an oil chamber are formed inside the damper regulator and the compressed fluid is stored in communication with the damper regulator and the front fork A bicycle front suspension fork characterized by the action of a compression fluid damper by a compressed fluid and a damper action by an oil fluid.

Description

Bicycle Front Suspension Fork {FRONT SUSPENSION FORK FOR BICYCLE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bicycle suspension fork, and more particularly, to a bicycle front suspension fork capable of buffering external shock and adjusting the height of a front wheel of a bicycle.

Generally, the bicycle front suspension fork is designed to face both sides of the front wheel of the bicycle, thereby inducing external shock damping and shock buffering of the front wheel of the bicycle, thereby improving ride comfort of the bicycle and securing the driving wheel.

Conventionally, a conventional bicycle suspension fork is arranged on both sides of a front wheel of a bicycle while being fixed to both ends of a crown 20 branched from a steering tube 10 of a suspension fork 1 as illustrated in FIG. 20 of the accompanying drawings. The compression suspension fork 60 on one side is urged by a coil spring 64 or an air spring (hereinafter referred to as " elastic force using compressed air inflating force " And a damper suspension fork 50 on the other side of the damper suspension fork 50 is constituted by a damper for controlling a compression damper action and a rebound damper action according to an external shock, Each of the compression suspension fork 60 and the damper suspension fork 50 is fixedly connected to the arch connecting member 40 while the suspension fork 50 is configured, So that a pair of suspension forks 1 are formed.

The suspension fork 1 constructed as described above is constructed such that the compression suspension fork 60 and the damper suspension fork 50 are provided with different role functions (for example, the compression suspension fork is quickly adapted to compression or extension action according to the impact of the road surface, The damper suspension fork 60 and the damper suspension fork 50 are provided in the same manner as the compression fork 60 and the damper suspension fork 50, The pair of the connecting members 40 are rigidly formed so as to have no unbalance between the two suspension forks 50 and 60 and the two suspension forks 50, And 60 are structured to be more robust, thereby increasing the weight.

Further, the coil spring 64 used in the compression suspension fork 60 is limited in the length variation of the compression and elongation, thereby limiting the variable amount of the suspension fork 1 and increasing the weight of the coil spring 64 An air spring using air pressure is introduced into the air chamber 65 above the piston 63 with the piston 63 attached to the inner cylinder 62 of the compression suspension fork 60 However, the air spring has a functional restriction point that is not limited to the compression or expansion action against the external impact in the function of the suspension fork, and does not perform the function of the damper action there was.

In addition, since the air spring system, which is used as the compression suspension fork, is limited to a single independent cylinder, the expansion and compression action of the compressed fluid are simultaneously effected, so that the compression ratio is formed to be large in a confined space of the compression suspension cylinder. Accordingly, when the pressure of the compressed fluid is high, the damper performance of the suspension fork is lowered. Further, when the pressure of the compressed fluid is low, there is a problem that compression expansion due to external impact of the suspension fork is lowered. The weight of the bicycle frame is increased.

Reference numeral 66 denotes an air inlet, and reference numerals 51 and 61 denote outer cylinders of the suspension fork 1, and reference numeral 55 denotes an oil chamber.

The damper suspension fork (50) comprises: Damper Suspension Fork (50) Compressing damper means (53) for directing fluid flow control of oil to the inner cylinder (52) through oil and performing a compression damper action in accordance with the external impact of the suspension fork (1) (52), respectively, of the rebound damper means (54), wherein the compression damper means (53) comprises: It is a function mainly used to reduce the energy loss that brightens the pedal when the road surface is packed and the road surface is raised or the uphill road is uphill (up wheel). The road surface is packed and needs to travel fast, The damper control lever 30 of the control damper means 53 is provided on the upper portion of the damper suspension fork 50 so that the damper means 53 can be operated while the bicycle is running It is possible to arbitrarily control the operation of the compression damper.

On the other hand, the rebound damper means 54 comprises: The damper suspension fork 50 is compressed in accordance with a normal external impact during the running of the bicycle on the road where the road surface is uncoated, and the rebound damper function is expanded and elongated. Since the control of the rebound damper means 54 is controlled by the damper adjusting means 31 provided under the suspension fork 50, it is impossible to control the rebound damper action arbitrarily during the running of the bicycle .

In addition, the damper suspension fork (50) is complicated in construction, and the control and adjustment means for constructing and directing the damper means (53) and the rebound damper means (54) There is a problem in that the damper control variable length is limited. In addition, when the variable damper control variable length is extended, the length of the damper suspension fork is greatly enlarged, .

In addition, in the conventional suspension fork 1, a damper action is produced by the rebound damper means 54 in response to an external impact, while a function of a simple elastic force due to an external shock is directed to the compression damper means 53, There is a problem in that the efficiency of the damper control is low due to the detailed damper control and the height control control.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-

The conventional suspension fork is constituted by a compression suspension fork and a damper suspension fork, and the two suspension forks are constituted by a pair of arch connecting members. This problem is solved by a complicated structure and an increase in weight, The damper control of the bicycle front suspension fork damper control is facilitated and the compression fluid is stored in the bicycle front fork using the control lever which is simply constituted by the handle of the bicycle and the rigidity of the front fork is increased, The damper control performance is improved by arranging the damper control means together with the compressed fluid and the oil fluid while the structure is simple, and the height of the damper control is enhanced, and the efficiency of the bicycle front suspension fork is improved.

Wherein a bearing mounting portion is formed on an upper side of a head tube constituting a bicycle frame, and a bearing is disposed on each of the bearing mounting portions, and inside the head tube below the bearing mounting portion; A damper regulator in which a damper control is directed;

The damper regulator includes a rod coupling portion formed on an upper side of a shift rod, a damper regulator coupled to the damper regulator through the bearing, and a damper regulator coupled to the damper regulator, The damper cylinder is reciprocated in and out of the head tube, and a front fork supporting the bicycle front wheel is coupled to the lower side of the damper cylinder to store compressed fluid inside the front fork and the damper adjuster;

The damper adjusting means is provided with a damper adjusting means for controlling the damper of the damper adjusting means and controlling the height of the damper adjusting means according to the control of the damper adjusting means. Also, according to the rotation of the shift rod, the front fork including the damper cylinder Can be provided.

The damper conditioner comprising: A piston including a shift rod is disposed inside the damper cylinder and an air pressure chamber is formed below the piston while a head member for sealing the air pressure chamber is coupled to the lower side of the damper cylinder, An air chamber in which compressed fluid is stored is formed;

The front fork includes: A front tube is formed and an air tank is formed in which the compressed fluid is stored in the front tube;

The air chamber and the air tank communicate with each other through a connecting means so that the compressed fluid flows in and out between the air pressure chamber and the air chamber under the control of the damper adjusting means and the compressed fluid flows in and out between the air chamber and the air tank through the connecting means The compression fluid damper control means of the damper regulator is directed and the compression ratio of the compressed fluid acting on the air pressure chamber of the damper regulator is variably controlled and controlled and the rigidity of the front fork is increased by the compressed fluid stored in the front fork Or the like.

Wherein the support member of the rod engaging portion is disposed in close contact with a bearing disposed on a lower surface of the bearing mounting portion and a bearing disposed on the upper surface of the bearing mounting portion, And a fixing means is coupled to the rod coupling portion to limit the upward and downward movement of the shift rod, and the shift rod is rotated in the head tube so that the shift rod is rotated And;

And the damper cylinder constituting the damper adjuster is formed to be opened to the lower side of the head tube so that the damper cylinder moves in and out of the head tube and rotates together with the shift rod inside the head tube.

The front fork is fixedly coupled to the damper cylinder, a pipe-shaped front tube is fixedly coupled to the lower side of the coupling member, and a compression force is applied between the coupling member and the front tube A communication member through which the fluid enters and exits may be coupled to provide a means for communicating the compressed fluid between the damper regulator and the front tube.

The damper conditioner comprising: An air pressure chamber and an oil damper chamber, which are variable with respect to the piston, are partitioned with a damper cylinder having a damper adjusting means and a piston including a shift rod;

The shift rod is formed in a pipe shape to form an air chamber. A damper adjusting member is disposed inside the shift rod. An oil chamber is formed inside the damper adjusting member by being coupled to the upper end of the damper adjusting means. And a damper operating unit installed on an upper end of the damper adjusting member and protruding upward from a rod coupling part of the shift rod. When the damper operating unit installed on the head tube is rotated, the damper adjusting unit of the damper adjusting unit is controlled and adjusted Means can be provided.

The piston of the damper regulator includes: And an air outflow path provided with the damper adjusting means to control the compressed fluid between the air pressure chamber and the air chamber, thereby forming an air damper passage and an air inlet and outlet, Wherein the damper adjusting means is provided to constitute a check valve means and an oil damper means for controlling the oil fluid between the oil damper chamber and the oil chamber so as to control the compression fluid damper of the air pressure chamber and the oil fluid It is possible to provide a means by which the damper control is directed.

The piston comprising: A rod fastening portion to which the shift rod is coupled to the upper side of the piston body, with the oil ring being provided in the piston body; A damper chamber and a valve seat are formed on a lower side of the valve connection hole and a damper passage and an oil inlet are formed on the lower side of the valve seat, The oil covering being fixedly coupled to the oil inlet;

And a vertical flow passage is formed on the upper portion of the body of the piston so that the oil damper chamber, the valve chamber and the valving passage are communicated with each other so that the vertical passage and the valving chamber are communicated with each other in a limited manner. And a horizontal flow passage in which the vertical flow passage and the valving flow passage communicate with each other;

The valve connection hole and the valve chamber are provided with an adjusting valve to constitute an oil damper means, and the damper adjusting hole includes: A damper adjusting body for controlling the control valve may be provided so that the damper control adjusting means by the oil fluid in the oil pressure chamber is directed according to the adjustment of the damper adjusting body.

The piston comprising: A check valve means is provided on the air outflow path so that an air outflow path is formed in which the piston bottom surface communicates with one side of the upper surface of the piston on the predetermined circle of the outer circumference of the damper control hole;

And an air damper passage and an air inlet / outlet passage, through which the upper end of the piston and the lower end of the piston communicate with each other at a predetermined distance from the air outlet passage with respect to the damper adjusting hole, And a selection hole is formed in the upper surface of the piston so as to be spaced apart from the air outlet line by a predetermined distance with reference to the damper adjustment hole, Mounted;

The upper portion of the damper adjusting member of the damper adjusting means; A planar adjuster slidingly brought into close contact with an upper surface of the piston; An air damper valve for opening and closing the air damper passage and a plurality of opening / closing valves for opening / closing the air inlet / outlet path are formed Thereby providing a means by which compressed fluid can be restrictedly introduced into and out of the air pressure chamber and the air chamber.

Wherein an injection valve is formed in the center of the damper control portion of the damper regulator with an air injection path formed therein, There is provided a free piston which variably stores an oil fluid;

Wherein a through hole is formed at the center of the rod coupling portion of the shift rod so that the damper operating portion is pivotally projected upward from the rod coupling portion to allow the compressed fluid to flow into the air chamber through the air injection path of the damper operating portion, When the damper operating portion is rotated, a damper control adjustment of the damper adjusting means is directed to provide a means for controlling the damping of the damper adjuster.

Wherein a center of the inner diameter of the rod portion into which the shift rod of the damper cylinder enters and leaves is spaced apart from the center of the inner diameter of the damper cylinder by a predetermined distance (C + 1), and the center of the shift rod, (C + 1) from the outer diameter of the damper cylinder and the center of the inner diameter of the damper cylinder;

The center of the damper adjusting member and the damper adjusting member provided on the piston are disposed in the same line as the center of the shift rod and the piston is prevented from rotating inside the damper cylinder, A means by which the adjusting means is pivoted in the piston can be provided.

The damper control unit includes a damper cylinder, a piston connected to the damper cylinder, and a connecting means communicating with the air chamber, the damper cylinder being spirally arranged in the damper cylinder and the end of the connecting means being fixedly connected to the head member, A head member having a space for receiving the connecting means therein and a head connecting member to which the connecting member is fixedly coupled to the head member, It is possible to provide a means by which the compressed fluid flows in and out.

Wherein the extension of the head member is disposed in close contact with the lower end of the damper cylinder and the head member is fixed to the damper cylinder by the engagement member constituting the front fork. The air pressure chamber of the damper cylinder is shut off from the outer circumference of the damper cylinder.

Wherein a spacer ring is disposed on an upper end of a bearing mounted on an upper surface of the head tube bearing mounting portion, and a stamper for receiving a bicycle handle is disposed on an upper portion of the spacer ring and an outer portion of the rod coupling portion, And a cylindrical coupling portion on which the bicycle handle is mounted is formed on the other side of the stem coupling member so that the two coupling members are formed on the end of the cylindrical coupling portion, A fastening hole for clamping the fastening member is formed;

The two stamble coupling members are fixed to the rod coupling portion by a fixing means and are fixed to the rod coupling portion by a fixing means while being arranged as a pair facing each other up and down on the outer side of the rod coupling portion, The upper end of the head tube and the rod engaging portion are provided with the stamper.

As described above, the bicycle front suspension fork of the present invention comprises: The front fork including the damper adjuster is rotated together with the damper adjuster for the front suspension function. The damper adjuster is disposed inside the bicycle head tube and rotates together with the damper adjuster. The arch connecting member constituted by the front suspension fork is omitted, so that the structure is simple and the weight is light.

In addition, the damper regulator of the present invention is excellent in damper control performance of the damper regulator because the expandable resilient force of the compressed fluid including the operation method of the oil fluid damper and the action of the compression fluid damper using the fluid flow control of the compressed fluid are exerted together, And the damper control unit is disposed on the upper side of the bicycle head tube, so that the control of the damper control unit is very easily performed.

Further, the compressed fluid utilized in the damper regulator is stored in the front fork of the bicycle, so that the rigidity of the bicycle front fork is increased, so that the weight of the front fork can be made lighter.

FIG. 1 is a perspective view illustrating an embodiment of a bicycle front suspension fork of the present invention; FIG.
Figure 2 illustrates one embodiment of a front suspension fork by longitudinally cutting a damper cylinder and a front fork, including a first-degree head tube.
FIG. 3 is a perspective view of the front suspension fork of the first aspect, in which the coupling means of the important construction means are disassembled and arranged; FIG.
FIG. 4 is a longitudinal section of the damper regulator of the present invention in the third position, illustrating the shift rod including the piston and the damper adjusting means in the longitudinal direction. FIG.
5 is a longitudinal sectional view illustrating the coupling relationship of the damper cylinder and the front fork of the damper regulator during the third stage.
6 is a longitudinal sectional view illustrating a head member coupled to a head portion of a damper cylinder during a second operation;
FIG. 7 is a perspective view illustrating the coupling relationship of the piston and damper adjusting means of the damper regulator during the fourth operation; FIG.
FIG. 8 is a perspective view showing a state in which the damper adjusting means is coupled to the piston of the damper regulator during the fourth step; FIG.
FIG. 9 is a longitudinal sectional view illustrating an embodiment of the piston and damper adjusting means in the longitudinal direction in FIG.
FIG. 10 is a longitudinal sectional view illustrating another embodiment of the piston and damper adjusting means in the longitudinal direction in FIG. 8; FIG.
FIG. 11 is a longitudinal sectional view illustrating another embodiment of the piston and damper adjusting means in the longitudinal direction in FIG. 8; FIG.
FIG. 12 is a longitudinal section view showing the damper adjusting means of the damper adjuster in FIG.
FIG. 13 illustrates the planar adjuster of the damper adjusting means from the lower side in FIG. 12; FIG.
FIG. 14 is a longitudinal sectional view illustrating the joining member of the front fork during the fifth step; FIG.
FIG. 15 is a rear view of the joining member of the front fork in the lower portion of FIG. 14; FIG.
FIG. 16 is a perspective view illustrating a communication member of the front fork during the fifth step; FIG.
FIG. 17 is a perspective view illustrating an embodiment of a bicycle stam during the second stage; FIG.
Figure 18 illustrates an embodiment in which the suspension fork damper regulator of the present invention is operated.
Figure 19 illustrates another embodiment in which the damper regulator of the present invention is operated.
20 is a vertical sectional view illustrating a conventional bicycle front suspension fork;

1, the damper regulator 1000, which opens the lower end of the head tube 100 of the bicycle and directs the damper buffering control of the front suspension fork, A front fork 200 fixed to a lower portion of the damper regulator 1000 and fixed to the front wheel 200 is fixedly coupled to the damper regulator 1000, The upper portion of the head tube 100 is fixed to the upper portion of the head tube 100 by the fixing means 140 and the stam 300 receiving the bicycle handle, The damper adjuster 1000 is rotated and the front fork 200 is rotated together.

A damper operating portion 1360 configured by the upper end of the damper adjusting device 1000 is disposed so as to protrude from the upper end of the head tube 100 and the adjusting lever 150 is fixed to the damper operating portion 1360, When the adjusting lever 150 is rotated, the damper control adjusting means of the damper adjuster 1000 is directed to control the suspension front fork damper control of the present invention.

Preferably, the bicycle top tube 100a and the bottom tube 100b are fixedly coupled to the outside of the head tube 100, and preferably, the front fork 200 is coupled to the damper regulator 1000 Shaped front tubes 230 and 230 'are fixedly coupled to the coupling member 210 and the front tubes 230 and 230' The wheel fixing members 240 and 240 'to which the wheels are coupled are constituted.

The bearing mounting portion 110 is formed on the upper side of the head tube 100 constituting the bicycle front frame so that the bearing mounting portion 110 and the bearing mounting portion 110 (120) and (120 ') are disposed in the head tube (100) on the lower side of the bearing mounting portion (110). The damper cylinder 1100 of the damper regulator 1000 in which the damper control is effected and the shift rod 1400 which goes in and out of the damper cylinder 1100 are disposed, The damper cylinder 1100 and the shift rod 1400 are connected to each other by the fastening means 140 being fastened to the rod engaging portion 1420 through the bearings 120 and 120 ' Is pivotally coupled to the inside of the head tube (100).

At this time, a support member 1431 is formed below the rod coupling portion 1420 of the shift rod 1400 so as to be closely attached to the bearing 120 'disposed at the lower end of the bearing mounting portion 110 of the head tube 100 A spacer ring 130 and a stamper 300 for receiving a bicycle handle are disposed on the outer side of the rod coupling part 1420 and the bearing ring 120 on the bearing mounting part 110 of the head tube 100 The stam 300 is fixedly coupled to the rod coupling portion 1420 of the shift rod 1400 by the fixing means 140 and is preferably fixed to the spacer ring 1400 as illustrated in FIG. A protrusion 131 protruding upward is formed on the upper end of the spacer ring 130 so that the stem 30 is fixed to the upper end of the spacer ring 130 and fixed.

Therefore, the shift rod 1400 of the damper adjuster 1000 is moved in accordance with the rotation of the stem 300 inside the head tube 100, with the upward and downward movements restricted by the bearings 120 and 120 ' The damper cylinder 1100 constituting the damper adjuster 1000 is rotated together with the rotation of the shift rod 1400 and is reciprocated into and out of the lower side of the head tube 100 .

A front fork 200 for supporting a bicycle front wheel is coupled to a lower side of the damper cylinder 1100 so that the damper cylinder 1100 and the shift rod 1400 including the front fork 200 are compressed The fluid is stored so that the damper regulator 1000 is controlled by the inflatable elastic force of the compressed fluid and the front fork 200 is further strengthened by the elastic force of the compressed fluid.

The piston 1200 is disposed at the lower end of the shift rod 1400 and is disposed inside the damper cylinder 1100. The piston 1200 is provided with a damper adjusting member 1350 And a damper adjusting unit 1300 including a damper operating unit 1360 is provided to control the damper of the damper regulator 1000 according to the control of the damper adjusting unit 1300, The front fork 200 including the damper cylinder 1100 is rotated together with the head tube 100 inside the head tube 100. [

Hereinafter, the front suspension fork of the present invention will be described in detail.

2 is a view illustrating one embodiment of a front suspension fork by longitudinally cutting the damper cylinder 1100 and the front fork 200 including the head tube 100 in the first step, FIG. 2 is a perspective view of a front suspension fork of the first embodiment, which is an exploded perspective view of the essential components of the front suspension fork; FIG.

As shown in FIGS. 2 to 3, a support member 1431 whose diameter is extended to the lower outer side of the rod coupling portion 1420 of the shift rod 1400 is formed, and a support member 1431 of the shift rod 1400 The support member 1431 is disposed in close contact with the bearing 120 'disposed on the lower surface of the bearing mounting portion 110 of the head tube 100 so that the upward movement of the shift rod 1400 is restricted and the bearing mounting portion 110 The rod coupling portion 1420 and the rod coupling portion 1420 are disposed on the upper surface of the bearing 120 and on the outer side of the rod coupling portion 1420, So that the downward movement of the shift rod 1400 is restricted and the stem 300 is fixedly coupled to the rod coupling portion 1420 of the damper adjuster 1000.

The shift rod 1400 and the damper cylinder 1100 constituting the damper adjuster 1000 are disposed so as to be pivotable within the head tube 100. The shift rod 1400 and the damper cylinder 1100, The damper cylinder 1100 of the damper adjuster is rotated inside the head tube 100 together with the shift rod 1400 and is moved into and out of the head tube 100. On the other hand, The shift rod 1400 of the damper adjuster is rotated together with the damper cylinder 1100 while the upward / downward movement of the shift rod 1400 is restricted within the head tube 100.

More specifically, the damper adjuster 1000 includes a damper adjusting unit 1300 and a shift rod 1400 inside the damper cylinder 1100 as illustrated in FIGS. 2 to 4 And the air pressure chamber P1 is formed inside the damper cylinder 1100 under the piston 1200 and the air pressure chamber P1 is sealed in the lower portion of the damper cylinder 1100 And the shift rod 1400 is formed in the shape of a pipe as illustrated in FIG. 4, and an air chamber C1 in which a compressed fluid is stored is formed. As shown in FIG. 2, front tubes 230 and 230 'are formed on the front fork 200 and the front tubes 230 and 230' ), And (T1 ') are formed.

The air chamber C1 and the air tank T1 are communicated with the connecting means 1160 so that the air pressure chamber P1 and the air chamber C1 The compressed fluid flows in and out between the air chamber C1 and the air tanks T1 and T1 'through the connecting means 1160 and damper control and elevation control of the damper controller are performed .

A connecting means 1160 communicating with the air chamber C1 is coupled to the lower surface of the piston 1200 so as to be spirally arranged in the damper cylinder 1100 and an end portion of the connecting means 1160 The air chamber C1 and the air tanks T1 and T1 'are fixed to the head member 1140 so that the air chamber C1 and the air tanks T1 and T1' T1 ').

Hereinafter, the damper regulator 1000 will be described in more detail with reference to FIGS. 2 through 11.

The damper adjuster 1000 includes a damper cylinder 1100 as illustrated in FIG. 2 of the accompanying drawings. The air pressure chamber P1 and the oil damper chamber P2 which are variable with respect to the piston 1200 are partitioned with the rod portion 1120 and the head member 1140 in which the shift rod 1400 enters and exits The damper adjusting member 1350 is coupled to the upper end of the damper adjusting means 1300 while a pipe-shaped damper adjusting member 1350 is disposed inside the shift rod 1400 as illustrated in FIG. 4, And a damper operating portion 1360 is installed at an upper end of the damper adjusting member 1350 and protrudes upward from the rod engaging portion 1420 of the shift rod 1400.

Preferably, the piston 1200 includes: With the planar adjuster 1310 configured in the damper adjusting means 1300 being provided as illustrated in FIG. 4 of the accompanying drawings, the piston 1200 includes: And an air outflow path 1212 for controlling the compressed fluid between the air pressure chamber P1 and the air chamber C1 as illustrated in FIG. 7, and includes an air damper passage 1214 and an air inlet / And the compressed fluid in the air pressure chamber P1 is controlled to be opened or closed in accordance with the operation of the plane regulator 1310, 9, the check valve mechanism 1250 and the adjusting valve body 1340 are provided so that the oil fluid flows into and out of the oil damper chamber P2 and the oil chamber C2, The buffer control is produced.

Hereinafter, the piston and damper adjusting means of the damper adjuster will be described in more detail with reference to FIGS. 7 to 13.

8, the piston has an oil ring 1230 mounted on the piston body 1210, and an oil fluid flows into and out of the upper end of the piston body 1210 and the outer peripheral surface of the oil ring 1230 A vertical channel 1216 and a check valve mechanism 1250 are provided and a rod fastening part 1220 to which the shift rod is coupled to the upper end of the piston body 1210 is formed to form a threaded part. A damper adjusting means 1300 is provided on the upper surface of the rod fastening portion 1220 of the piston 1200 so as to constitute a plane adjusting body 1310 slidably sliding on the upper surface of the rod fastening portion 1220, A damper member engaging portion 1320 to which the damper adjusting member is coupled is formed on the upper surface of the plane adjusting member 1310 of the damper adjusting means 1300 of the present invention.

As shown in FIG. 7, the piston has a piston body 1210 slidably sliding on the inner surface of the damper cylinder, an oil ring 1230 is provided on the outer circumference of the piston body 1210, A load lock portion 1220 to which the shift rod is coupled is installed on the upper side of the load lock portion 1210 so as to extend downward from the center of the upper surface of the load lock portion 1220, A valve chamber 1211b and a valve seat 1211c are formed below the valve hole 1211a and a valve hole 1211d and an oil inlet 1211b are formed below the valve seat 1211c, (1211e) is formed and the oil covering 1240 is fixedly coupled.

The valve chamber 1211b and the valving oil passage 1211d communicate with each other above the oil ring 1230 at the upper end of the outer circumferential surface of the piston body 1210 as shown in FIGS. 7 to 9, A check valve chamber 1218 in which the vertical flow path 1216 and the valve chamber 1211b are communicated with each other is formed in the check valve chamber 1218, A foot valve 1251 and a spring 1252 are provided to form the check valve means 1250 and a horizontal flow passage 1219 in which the vertical flow passage 1216 and the valvet flow passage 1211d communicate with each other is formed .

The damper adjusting hole 1211 is provided with an adjusting valve 1340 for opening and closing the balb passage 1211d in the valve connecting hole 1211a and the valve chamber 1211b. A damper regulator 1330 of the damper regulator 1300 to regulate the regulator valve 1340 is disposed so as to communicate with the vertical flow path 1216 by the regulating valve 1330, 1211d can be opened and closed.

Therefore, as illustrated in FIG. 18, when the volume of the oil damper chamber P2 of the damper regulator is increased and the oil suction operation is performed, as shown in FIG. 9 of the accompanying drawings, The valve chamber 1211b and the vertical flow path 1216 are communicated with each other through the horizontal flow path 1219 and the check valve means 1250 so that the flow of the oil fluid freely flows out and preferably the check valve means The limited fluid flow in one direction is directed from the valve chamber 1211b to the vertical flow path 1216 so that the oil fluid flows into the oil damper chamber P2.

An oil passage 1314 is formed inside the damper adjusting body 1330 while an oil passage 1346 and an inlet 1345 are formed inside the damper adjusting body 1340 and the piston 1200 The inlet 1217 is formed in the check valve chamber 1218 of the valve body 1220 to allow the oil fluid to flow in and out.

On the other hand, when the volume of the damper regulator oil damper chamber P2 is contracted, the check valve 1250 is shut off and the oil fluid in the oil damper chamber P2 flows into the vertical channel 1216 and the horizontal channel The degree of opening and closing of the valve seat 1211c is adjusted in accordance with the opening and closing of the regulating valve body 1340 in the course of flowing out to the valve chamber 1211b through the balb channel 1211d including the valve 1219, A damper buffering control in which the flow rate of the oil fluid in the chamber P2 is controlled and controlled is produced.

The valve chamber 1211b communicates with the space 1321 formed inside the damper member engaging portion 1320 of the damper adjusting means so that the oil chamber C2, The oil damper chamber P2 is communicated with each other.

Preferably, the adjusting valve 1340 of the damper adjusting means 1300 includes a threaded portion 1341 which is screwed into the valve fitting hole 1211 as illustrated in FIGS. 7 to 9, The screw connection portion 1341 is connected to the horizontal flow passage 1219 and the valve 1344 is connected to the screw connection portion 1341. [ The inlet 1345 is formed on the outer circumferential surface of the bulb guide 1343 and the inside of the upper surface of the inlet 1345 is vertically communicated with the inlet 1345. [ The oil passage 1346 is formed.

9, the control valve 1340 is screw-coupled to the valve-engaging hole 1211 of the piston 1200 so that the valve body 1340 is rotated in accordance with the rotation of the adjusting valve 1340 The valve seat 1344 formed on the bottom surface of the valve body 1340 is pressed against the valve seat 1211c of the piston 1200 by the opening and closing of the adjusting valve body 1340, And the flow amount of the oil fluid flowing in and out through the balb flow path 1211d is controlled and controlled.

7 to 12, a driving unit 1342 of the adjusting valve 1340 is slidably inserted into a lower side of the damper adjusting unit 1330 of the damper adjusting unit 1300, And the damper adjusting body 1330 is rotated while being disposed in the driving portion 1342 of the adjusting body 1340. The adjusting body 1340 is operated up and down The balb channel 1211d is opened and closed.

9, the damper adjusting body 1330 is inserted into the damper adjusting hole 1211 of the piston 1200, and when the damper adjusting body 1330 is rotated, The adjustment valve 1340 is pulled in and out by the screw fastening method in the valve fitting hole 1211 so that the adjustment of the opening and closing of the adjustment valve 1340 is controlled.

Preferably, the damper adjusting body 1330 is formed with a sealing portion 1332 on the outer periphery of the damper adjusting body 1330 to which an oil ring (not shown) is mounted, as illustrated in FIG. 12, 13, the planar adjuster 1310 is disposed on the upper side of the damper adjuster 1330 and is in close contact with the upper surface of the piston 1200. As shown in FIG. 13, An air damper valve 1314 and an air opening / closing port 1313, including a selection opening 1315 and an air opening / closing valve 1312 for selectively opening and closing an air damper passage and an air inlet / And a damper member engaging portion 1320 in which a damper adjusting member constituted by the damper adjusting means is fixedly coupled is formed on the plane regulating member 1310 while the damper member engaging portion 1320 is formed A space portion in which the oil fluid is stored 1321 are formed.

Further, preferably, the rotary hole 1331 and the space portion 1321 formed inside the lower portion of the damper adjusting member 1330 are communicated with each other by the oil passage 1311.

Hereinafter, the piston will be described in more detail with reference to FIGS. 7 through 13.

The piston is formed with an air outflow path 1212 through which the lower surface of the piston 1200 communicates with one side of the upper surface of the piston 1200 on the outer circumference of the damper adjusting hole 1211, as illustrated in FIG. 7 There is provided a check valve unit 1260 for limitedly discharging the compressed fluid in one direction to the air outflow path 1212 as illustrated in the accompanying drawings. 18, the compressed fluid in the air pressure chamber P1 is supplied to the air chamber C1 (see FIG. 18) formed in the shift rod 1400 through the check valve unit 1260 and the air outflow channel 1212, ).

Preferably, the valve seat member 1261 is coupled with the check valve chamber 1212b formed in the air outflow passage 1212 as illustrated in FIG. 10, so that the check valve chamber 1212b is provided with a check valve The body 1260 and the elastic spring 1262 are mounted to form the check valve 1260.

The upper and lower ends of the piston 1200 are communicated with each other by a predetermined distance from the air outflow path 1212 with respect to the damper adjusting hole 1211 so that the air damper flow path 1214 and the air 11, a lake connecting member 1280 is fixedly coupled to the lower portion of the air inlet / outlet path 1213, and the damper adjusting member 1280 is fixedly coupled to the air inlet / A selection hole 1215 is formed on an upper surface of the piston 1200 so as to be spaced apart from the air outflow path 1212 by a predetermined distance from the hole 1211, The selection body 1270 is mounted.

The piston 1200 is provided with a plane adjusting body 1310 of the damper adjusting means 1300. The plane adjusting body 1310 includes a flat adjusting body 1310 slidably sliding on an upper face of the piston as illustrated in FIG. A plurality of selection elements 1315, 1315a, 1315b, 1315c, and 1315c are selected in the planar adjuster 1310 as illustrated in FIG. 13, A plurality of air damper valves 1312, 1312a, 1312b and 1312c for opening and closing the air outflow passage 1212 and opening and closing the air damper passage 1214, 1313, 1313a, 1313b, and 1313c for opening and closing the air inlet and outlet passage 1213 are formed in the air inlet and outlet passage 1314, 1314a, 1314b, 1314c, The damper buffer control of the compressed fluid in which the compressed fluid is limitedly introduced into the space between the chamber P1 and the air chamber C1 is produced.

Therefore, the selectors 1315, 1315a, 1315b and 1315c formed on the plane adjusting body 1310 of the damper adjusting means 1300 are arranged on the side of the selected body 1270 constituting the piston 1200 1312b, 1312c formed on the plane regulator 1310 according to the selection of the air damper valves 1314, 1314a, 1314b, 1314b, 1314a, 1312c formed in the piston 1200 as shown in FIG. 7, which is selectively controlled and controlled, and the air openings 1313, 1313a, 1313b, 1313c, And the air damper passage 1214 and the air inlet / outlet passage 1213 are opened and closed, and the compressed fluid is restrictedly introduced into and exited between the air pressure chamber P1 and the air chamber C1, 11 and 18, the air is introduced into the air chamber C1 through the connecting member 1260 and the connecting member 1160, which are formed below the air inlet / Tanks T1 and T1 'are communicated with each other to allow the compressed fluid to flow in and out.

10, an oil ring 1212a is mounted on an upper end of the air outflow path 1212 of the piston 1200 and an oil ring 1214a is provided on an upper end of the air damper passage 1214. [ The air flow path 1212 and the air damper flow path 1214 are hermetically sealed from the air chamber C1 while the planar adjuster 1310 of the damper adjusting means 1300 is slidably and slidably mounted. .

Hereinafter, the planar adjuster 1310 of the damper adjusting means will be described in more detail with reference to FIGS. 7 to 13.

As shown in FIG. 12 of the accompanying drawings, the damper adjusting unit 1330 includes a damper adjusting unit 1330 having a rectangular shaped turning hole 1331 formed on the lower surface of the damper adjusting unit 1330, 13 is a plan view of the air conditioner 1310. The air conditioner 1310 includes the air outlet passage 1212 of the piston 1200 and the air damper passage 1214, And a plurality of selection ports 1315 for selecting and opening the air inlet / outlet path 1213 are formed at predetermined intervals.

1315a, 1315b, and 1313d are formed in the selection body 1270 formed together with the elastic spring 1271 in the selection hole 1215 of the piston 1200 as illustrated in FIG. 11 of the accompanying drawings. 1315b and 1315c is selected, the selected body 1270 is moved to one of the selection holes 1315, 1315a, 1315b, and 1315c by the elastic spring 1271, 1315a, 1315b, and 1315c by the selected body 1270, as shown in FIG. 12B.

In a state in which the first selector 1315a and the second selector 1315b are selected in the selected body 1270 of the piston 1200 as illustrated in FIGS. 10 through 11, 1312, 1312a, 11312b, and 1312b, as shown in FIG. 13 of the accompanying drawings, so that the outflow path 1212 and the air inlet and outlet path 1213 are opened. (1313), (1313a), and (1313b) are formed.

18, the compressed fluid stored in the air pressure chamber P1 of the damper cylinder 1110 is discharged to the outside through the air outflow path 1212 and / The compressed air flowing out to the air chamber C1 through the air opening and closing valves 1312a and 1312b and the air chamber C1 flows into the air openings 1313a and 1313b and the air inlets 1213 (T1), T1 ') of the front fork 200, so that the upward compression action of the damper cylinder 1110 is gentle and smoothly absorbed by the damper regulator due to the compressed fluid, .

The air damper flow path 1214 and the air damper valves 1314a and 1314b are in a limited open state so that the air chamber C1 is separated from the air pressure chamber P1 through the air damper flow path 1214, The outflow action of the compressed fluid is performed.

13, when the first selector 1315a and the second selector 1315b are selected in the selector 1270, the air damper passage (not shown) is provided in the plane adjuster 1310, The air damper valve 1314 for opening and closing the first damper valve 1214 is provided with a first damper hole 1314a in which the flow of the compressed fluid is large and a second selection hole 1314b in which the flow amount of the compressed fluid is small, So that the flow of the compressed fluid is controlled and controlled.

Therefore, when the damper regulator is subjected to the upward descent rebound action of the damper regulator by completing the external upward compression action, as illustrated in the accompanying drawing 19, The opening and closing control of the air damper valves 1314a and 1314b is performed during the process of returning to the air pressure chamber P1 through the air damper valves 1314a and 1314b and the air damper passage 1214 as illustrated in FIG. The flow amount of the compressed fluid returned through the air damper passage 1214 is adjusted according to the degree of the rebound damping of the damper cylinder 1100 to restrict the rebound lowering operation of the damper cylinder 1100, At this time, the air outflow path 1212 is blocked by the check valve unit 1260.

In the state where the third selector 1315c of the plane regulator 1310 is selected in the selected body 1270 as illustrated in FIG. 13 of the accompanying drawings, the air outlet 1212, including the air outlet passage 1212, 1314c and 1314c are formed on the plane regulating member 1310 such that the damper channel 1214 and the air inlet and outlet channel 1213 are blocked.

Therefore, when the third selector 1315c of the planar adjuster 1310 is selected in the selector 1270, the air damper passage 1214 including the air outlet passage 1212 and the air inlet / The air pressure chamber P1 of the damper cylinder 1100 and the air chamber C1 are shielded from each other to form the air pressure chamber P1, The damper cylinder 1100 has a high compression ratio with respect to the compression action of the damper cylinder 1100 so that the upward compression operation of the damper cylinder 1100 is restricted so that the elevation control of the damper regulator, do.

Preferably, the piston 1200, which is disposed inside the damper cylinder 1100 of the damper regulator, as shown in FIG. 2 or 18, is connected to the head tube 100 together with the shift rod 1400 The damper cylinder 1100 is raised and lowered to the inside and outside of the head tube 100 when the external shock is applied to the damper regulator 1000. The control of the damper regulator 1000 The shift rod 1400 and the head tube 100 including the damper cylinder 1100 due to the external impact of the damper regulator are raised and lowered together.

Hereinafter, another embodiment of the plane adjusting body 1310 constituting the damper adjusting means 1300 will be described in detail with reference to FIG.

A fourth selection tool 1315d is formed between the first selection tool 1315a and the second selection tool 1315b of the plane regulating element 1310 as illustrated in Fig. 13-1 of the accompanying drawings The fourth selector 1315d and the second selector 1315b including the first selector 1315a of the plane adjuster 1310 are selected in the selector body 1270 so that the air outflow The arc 1212 and the air inlet and outlet 1213 are respectively opened so that the air opening and closing valves 1312a and 1312b and the opening and closing ports 1313a and 1313b are continuous with the circular arc valve 1312d and the arc opening 1313d, And the air damper valves 1314a and 1314b are respectively connected to the first damper valve 1314a and the second damper valve 1314b in such a manner that the flow of the compressed fluid is progressively reduced from the first damper valve 1314a to the second damper valve 1314b, (1314d) is formed.

The compressed fluid flows of the air outflow path 1212 and the air outflow path 1213 are freely moved in and out while the fourth selection port 1315d of the planar regulator 1310 is selected, 1214 can control the damper buffering control of the damper regulator more precisely by opening and closing the flow rate of the continuous compressed fluid formed in the circular arc damper sphere 1214d.

The damper adjusting member 1350 including the shift rod 1400 including the damper adjusting means 1300 of the damper adjusting unit and the damper operating unit 1360 will be described in detail with reference to FIG.

As shown in FIG. 4, an injection valve unit 1370 is formed with an air injection passage 1361 formed at the center of the damper operation unit 1360 of the damper control unit. In the damper control unit 1360, A valve seat 1371 is formed on the lower surface of the air inlet passage 1361 so that the valve body 1372 is closely contacted by the elastic spring 1373. A pressurized fluid flows in and out of the wall surface of the damper adjusting member 1350 And a fixing pin 1375 for supporting the elastic spring 1373 is fixedly coupled to the injection valve 1370. The damper adjusting member 1350 is fixed to an inner side of the damper adjusting member 1350, A free piston 1380 for variably storing the fluid is provided.

Therefore, when a compressed fluid is injected into the air injection path 1361 formed in the damper operating unit 1360, the compressed fluid is injected into the damper adjusting member 1350 by the injection valve unit 1370, The compressed fluid is stored in the air chamber C1 formed inside the shift rod 1400 through the damper adjusting member 1374 and the free piston 1380 provided inside the damper adjusting member 1350 is coupled to the damper adjusting member 1350 The free piston 1380 is moved to the compression fluid pressure of the air chamber C1 in accordance with the oil fluid and the degree of emotion of the oil chamber C2 while being blocked by the oil chamber C2 on the inner side of the oil chamber C2, (1350).

In addition, a through hole 1421 is formed in the center of the rod coupling portion 1420 of the shift rod 1400 so that the damper manipulating portion 1360 is projected to be rotated upward on the rod coupling portion 1420. Therefore, when the compressed fluid flows into the air chamber C1 through the air injection path 1361 of the damper operating portion 1360 and the damper operating portion 1360 is rotated, the control of the damper adjusting means 1300 So that the buffer control of the damper regulator is produced.

Hereinafter, the piston 1200 of the damper controller will be described in more detail.

The piston 1200 is formed with a check valve chamber 1212b extending on the air outflow path 1212 as illustrated in FIG. 10, and a check sheet member 1261 is provided below the check valve chamber 1212b. And the piston connecting member 1280 is coupled to the lower portion of the air inlet and outlet passage 1213 and the piston 1200 is fixed to the piston 1200 as illustrated in FIG. An extension flange 1241 is formed at the lower end of the oil cover ring 1240 to be engaged with the hub cover member 1261 and a portion of the lake connecting member 1280. The check sheet member 1261 and the lake connecting member 1280 are fixed to the lower portion of the piston 1200 while being prevented from falling downward by the oil turbo ring 1240. [

Hereinafter, the damper adjuster, which is interlocked with the damper cylinder 1100 and the shift rod 1400 of the present invention and is rotated inside the head tube 100, will be described in detail.

4-1 in the accompanying drawings is a view illustrating a coupling relationship between the piston and the shift rod on the line AA ', and also in Fig. 5 of the accompanying drawings, " Fig. 5-1 " And the rod portion.

The center CL2 of the inner diameter 1121 of the rod portion 1120 of the damper cylinder 1110 is spaced from the center CL1 of the inner diameter 1111 of the damper cylinder 1110 by a predetermined distance The center CL4 of the shift rod 1410 coupled to the piston 1200 as shown in FIG. 4 is spaced apart from the center of the piston 1200 by the outer diameter of the piston 1200, And the center CL5 of the damper adjusting means 1300 and the damper adjusting member 1350 provided to the piston 1200 are spaced apart from the center CL3 by a predetermined distance C + And is disposed on the same line as the center CL4 of the rod 1410. [

19, the damper cylinder inner-diameter centerline CL1 and the centerline CL3 of the outer diameter of the piston are disposed on the same line, and the center line CL2 of the rod portion 1120 of the damper cylinder is parallel to the inner- The center line CL4 of the shift rod 1410 and the damper adjusting member center line CL5 are formed on the same line.

Therefore, as illustrated in FIG. 19 of the accompanying drawings, the damper adjuster of the present invention is provided with a rotation preventing key (not shown) for preventing the rotation of the piston, The piston 1200 is prevented from rotating inside the damper cylinder 1110 and the damper adjusting means is rotated by the piston 1200 in accordance with the rotation of the damper adjusting member.

Here, it is obvious that the predetermined interval (C + 1) refers to the eccentric distance between the center line and the center line, and the predetermined interval (C + 1) is not limited to the interval and can be applied in various forms.

9, the center CL4a of the rod engaging portion 1220 of the piston 1200 is spaced apart from the center CL3 of the piston 1200 by a predetermined distance C + 1 And the center CL5a of the damper adjusting hole 1211 of the piston 1200 is equal to the center CL4a of the rod engaging portion 1220 The damper adjusting means 1310 of the damper adjusting means 1300 is provided on the damper adjusting hole 1211 so that the center CL5a of the damper adjusting means is adjusted to the center of the shift rod and the center CL4, Is formed on the same line as the center (CL5) of the member (1350). Therefore, the damper adjusting means is disposed on the center line CL4 of the shift rod, and when the damper operating portion is rotated, the damper adjusting means is rotated on the upper surface of the piston and the damper buffering control is adjusted.

In the meantime, a more preferable embodiment of the damper regulator will be described.

5, a screw coupling part 1130 is formed on the lower outer circumferential surface of the damper cylinder 1110, and a coupling part 1130 is formed on the inner lower part of the damper cylinder 1110, as shown in FIG. A head member 1140 for sealing the lower side of the damper cylinder 1110 is fixed and the head member 1140 is fixed to the head member body 1140 as illustrated in FIG. A head engaging portion 1142 is formed to be in tight contact with the inside of the damper cylinder on the upper and lower sides of the outer surface of the head member body 1141. The head engaging portion 1142 is formed on the upper surface of the head member body 1141, And a space portion 1143 is formed inside the recess 1142.

A coupling hole 1144 is formed in the body of the head member 1141 so that a part of the lake coupling member 1150 is passed through the coupling hole 1144 and the space 1143 is fixed And is fixedly coupled by a nut 1151. Therefore, the connecting means 1160 is accommodated in the space portion 1143 inside the head member 1140, and the damper cylinder is sealed off from the outside.

Preferably, the lower end portion of the head member 1140 includes an extension portion 1145 whose outer diameter is enlarged. As shown in FIG. 5, the extension portion 1145 of the head member 1140 is inserted into the damper The head member 1140 is fixedly coupled to the damper cylinder 1110 by the engaging member 210 constituting the front fork 200 while being closely attached to the lower end of the cylinder 1110, 1110 are sealed to the outside by the head member 1140.

Still another embodiment of the front suspension fork of the present invention will be described.

As illustrated in FIG. 2, the damper regulator 1000 reciprocating in and out of the head tube 100 includes: The compressed fluid is stored in the front fork 200 while being communicated with the communication means 1160 of the compressed fluid and the front fork 200 so that the compressed fluid damper control means of the damper regulator 1000 is directed, The compression ratio of the damper regulator 1000 is variably controlled and controlled, and the compression fluid stored in the front fork 200 increases the rigidity of the front tubes 230 and 230 '.

18, the front tubes 230 and 230 of the front fork 200 are connected to the air pressure chamber P1 formed below the piston 1200 of the damper regulator 1000, 'Is limited by the control of the damper adjusting means 1300 so that the compression ratio of the air pressure chamber P1 of the damper cylinder 1110 is varied. That is, the air pressure chamber P1 of the damper cylinder is blocked from the air tanks T1 and T1 'of the front tubes 230 and 230' according to the control of the damper adjusting means 1300, The air pressure chamber P1 of the damper cylinder 1100 is formed higher than the compression fluid pressure of the air tanks T1 and T1 'so that the height control of the damper adjuster is smoothly performed Loses.

The compressed fluid in the air pressure chamber P1 is communicated with the connecting means 1160 through the air chamber C1 formed inside the shift rod 1400 and the air tanks T1, 'And the air chamber C1 are formed at the same level of the pressure of the compressed fluid.

Hereinafter, the front fork 200 will be described with reference to FIGS. 2 to 5 of the accompanying drawings.

As shown in FIG. 3, the front fork includes a coupling member 210 that is fixedly coupled to the damper cylinder 1100, and a pipe-shaped front tube (not shown) is installed at both sides of the coupling member 210 230 and 230 'are fixedly coupled to each other and the coupling member 210 and the front tubes 230 and 230' are fixed to the lower side of the coupling member 210 as illustrated in FIG. The compressed fluid flows in and out between the damper regulator 1000 and the front tubes 230 and 230 '.

Hereinafter, the front fork 200 will be described in more detail.

As shown in detail in FIGS. 14 through 15, the coupling member 210 of the front fork 200 has a coupling hole 212 through which the damper cylinder is coupled to the upper center of the body of the coupling member 210 And tube fixing bodies 211 are formed to protrude from both sides of the fixing holes 212 of the coupling member 210 while tube fixing holes 213 and 213 'are formed at the lower portions of both sides of the tube coupling body 211 And the front tubes 230 and 230 'are fixedly coupled to the tube fixing holes 213 and 213' and the lower surface of the coupling member 210 is provided with an example The inlet and outlet passages 215 and 215 'communicating with the tube fixing holes 213 and 213' and the inlet 214 through the inside of the coupling hole 212 are formed as shown in FIG. The lower surface of the member 210 is formed with fixing holes 216 and 216 'to which the communication member 220 is fixedly coupled. Referring to FIG. 5, The communication member 220 is fixed by the fixing means 224 (224 ') as described.

Preferably, the coupling member 210 is formed such that the outflow passages 215 and 215 'formed in each of the tube coupling bodies 211, as illustrated in FIG. 14 of the accompanying drawings, (R) from the lower surface of the tube coupling body (211) with respect to the coupling hole (212) so as not to communicate with the coupling hole (212) The upper side of the fixing holes 213, 213 'and the outflow passages 215, 215' communicate with each other. 5, the front tubes 230 and 230 'include the inlet 214 of the coupling member 210 and the communication passage 221 of the communication member 220 and the front tube 230' And are communicated with each other by the inlet and outlet flow passages 215 and 215 'of the tube coupling body 211.

The communication member 220 is disposed on the lower surface of the coupling member 210 and is fixedly coupled to the fixing member 224 and 224 ' 220 are formed on the lower surface of the coupling member 210 as illustrated in FIG. 16, and the communication passages 215 and 215 'formed in the lower side of the coupling member 210 and the horizontal communication passage 221 are formed.

The front tubes 230 and 230 'of the front fork 200 are formed in the shape of a pipe as illustrated in FIG. 2, and the air tanks T1 and T1 A wheel fixing member 240 which hermetically seals the air tanks T1 and T1 'and a bicycle front wheel is supported on the lower portions of the front tubes 230 and 230' A fixing part 241 which is tightly coupled to the inside of the front tubes 230 and 230 'on the upper side of the wheel fixing members 240 and 240' So that the front tubes 230 and 230 'are shielded from the outside and sealed.

More specifically, the coupling member 210 includes a front tube 230 and a front tube 230 'in a tube coupling 211 of the coupling member 210 as illustrated in FIG. 14, The upper center lines of the tube fixing holes 213 and 213 'on both sides of the tube coupling body 211 are spaced apart by a predetermined distance D and the lower center line of the tube fixing holes 213 and 213' The front end of the front tube 230 and the front end of the front fork 200 are formed to be inclined downward at a predetermined angle R1 so as to be extended to the front end of the front fork 200. As shown in FIG. 2, And the wheel fixing members 240 and 240 'are spaced apart from each other by an interval D2 of the wheel fixing members 240 and 240'. Are formed at predetermined angles R2 and R2 'so as to be vertically downward on the center line of the wheel fixing portions 241 and 241' coupled to the inside of the front tubes 230 and 230 ' The wheel fixing members 240 and 240 'are spaced apart from each other by a predetermined distance D3.

Therefore, the front tubes 230 and 230 'are fixed to the wheel fixing members 240 and 240' while the front wheel 230 and the front wheel 230 ' The lower spacing D2 of the front tubes 230 and 230 'is determined by the inclination angle R1 that is greater than the upper spacing D1, as illustrated in FIG. 2 of the accompanying drawings. 230 and 230 'are fixed to the lower side of the tube fixing hole 213' of the coupling member 210 without being detached.

That is, when the compressed fluid is stored in the front tubes 230 and 230 ', the front tubes 230 and 230' are separated from the tube fixing holes 213 and 213 'of the coupling member 210 The front tube 230 and the front tube 230 'are detached from the tube fixing holes 213 and 213' of the coupling member 210. At this time, The front tubes 230 and 230 'are configured to extend at a predetermined inclination angle R1 so that the front tubes 230 and 230' are inserted into the tube fixing holes 213 and 213 of the coupling member 210 ') Is limited.

Here, the predetermined distance D1 spaced from the upper side of the front tubes 200 and 200 'is an interval in which there is no interference when the tires of the bicycle front wheel are installed, and the front tubes 200, 200 'is set in consideration of the interval at which the bicycle front wheel axle is disposed. It is a matter of course that the predetermined intervals D, D1 and D2 and predetermined angles R and R1 and R2 are not limited and can be applied in various forms.

On the other hand, another embodiment in which the damper regulator is coupled to the head tube will be described.

As illustrated in FIG. 3 of the accompanying drawings, the shift rod 1400 includes: A rod penetrating portion 1430 penetrating through the bearing 120 'to the lower side of the rod coupling portion 1420 is formed. The rod penetrating portion 1430 has a stepped portion Shaped support member 1431 is detachably disposed on the lower end and the outer peripheral surface of the rod penetration portion 1430 and the bearing 120 'of the lower surface of the bearing mounting portion 110 of the head tube 110 is detachably mounted. Respectively.

Therefore, the bearing 120 'of the lower surface of the bearing mounting portion 110 of the head tube 100, while the support member 1431 is disposed in close contact with the stepped portion and the outer periphery of the rod rod 1430 of the shift rod 1400, The lift operation of the shift rod 1400 is limited and the damper adjuster 1000 including the shift rod 1400 is rotated inside the head tube 100. [

Hereinafter, a description will be made of the stamper 300 which receives the bicycle handle fixedly coupled to the head tube 100 and the rod coupling portion 1420 of the damper adjuster 1000.

The stamper 300 includes two stamembers 310 and 310a having the same shape as illustrated in FIGS. 2 to 3 and 17, A through hole 313 is formed at one side (right side) of the shift engaging member 310 and the shift engaging portion 1420 of the shift rod 1400 to be mounted to the rod engaging portion 1420 of the shift rod 1400, The two stamper members 310 and 310a are formed at the ends of the cylindrical coupling portions 311 and 311 'while the cylindrical coupling portions 311 and 311' (Not shown) is accommodated in the space portion 312 formed inside the cylindrical coupling portions 311 and 311 'with the coupling holes 314 and 314' for clamping the coupling portions 311 and 311 ' , And becomes fixed.

Therefore, as shown in FIG. 2, the two stamble members 310 and 310a are fixed on the outer side of the rod coupling part 1420 with a pair of facing facing each other, And is fixed to the rod coupling part 1420 by a body. When the stem 300 is rotated, the rod engaging portion 1420 is rotated to rotate the front fork 200 including the damper regulator 1000 while the damper cylinder 1000 of the damper regulator 1000 1100, and the front fork 200, respectively.

Reference numeral 311a shown in FIG. 17 is a lower cylindrical coupling portion of the stem, and reference numeral 315 denotes a space portion, and the weight of the stem can be made lighter by the space portion.

Hereinafter, an embodiment will be described in which a damper regulator is coupled to a head tube of a bicycle front suspension fork according to the configuration and operation of the present invention.

When the front fork 200 reciprocates upward and downward from the bicycle front wheel in accordance with the state of the road surface during bicycle driving, the damper cylinder of the damper conditioner including the front fork 200, as shown in FIG. 18 A damper operation is performed by the damper adjusting means 1300 of the damper adjuster and the handle bar formed in front of the bicycle head tube 100 is accommodated The damper adjuster of the present invention including the damper cylinder 1110 and the shift rod 1410 is rotated together with the damper adjuster of the present invention interlocked with the inside of the head view 100, The front fork 200 constituted by the lower end of the cylinder 1110 is freely rotatable left and right at the center of the head tube 100.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of damper operation of a damper controller according to the present invention will be described.

Oil is supplied and stored in the oil damper chamber P2 and the oil chamber C2 of the damper cylinder 1110 as illustrated in FIG. 18 of the accompanying drawings, and is compressed through the air inflow passage formed in the damper operating portion 1360 The compressed fluid is stored in the air chamber C1 and the free piston 1380 formed inside the damper regulating member 1350 is acted on the oil chamber C2 via the free piston 1380, The appropriate pressure is applied.

When the compressed fluid flows into the air chamber C1, the compressed fluid flows out to the air pressure chamber P1 of the damper cylinder 1110 through the air damper flow path of the piston 1200, The pressurized fluid is guided to the front tube 230 of the front fork 200 through the air inlet and outlet of the piston 1200 and the connecting means 1160. [ The stiffness of the front tubes 230 and 230 'is increased by the expansion force of the compressed fluid, while being stored in the air tanks T1 and T1'

Preferably, the air cylinders T1 and T1 'and the air chamber C1 are maintained at the same pressure of the compressed fluid through the connecting means 1160, and more preferably, the unloading action of the shift rod 1400 The air chamber C1 and the air tanks T1 and T1 'including the air pressure chamber P1 are maintained at the same pressure in accordance with the damper control adjustment state of the damper adjusting means 1300. [

As described above, when a compressed fluid having an appropriate pressure is formed in the air pressure chamber P1 and the air chamber C1 of the damper regulator, the piston 1200 of the damper regulator rises due to the compressed fluid expansion force of the air pressure chamber P1 The head tube 100 coupled to the shift rod 1400 moves up and down according to the upward movement of the piston 1200, .

At this time, the oil damper chamber P2 of the damper regulator is directed to compress the volume by shrinking the piston 1200, and the oil fluid stored in the oil damper chamber P2 is stored in the oil chamber C2 , Preferably the free piston 1380 disposed in the oil chamber C2 is raised to increase the volume of the oil chamber C2.

When an external force (for example, a weight load action of a bicycle occupant) is applied to the damper cylinder 1110 of the damper controller 1000 configured as described above, the piston 1200 moves the head tube 100 acting on the shift rod 1410 The downward movement of the piston 1200 at the appropriate height is stopped while the compressed fluid formed in the air pressure chamber P1 is raised to a higher pressure and the piston The efficiency of the damper cylinder 1110 according to the operating range of the piston 1200 is improved as the lowering operation of the piston 1200 is reduced.

Preferably, the air pressure chamber P1 is shut off from the air chamber C1 and the air tanks T1 and T1 'while the compressed fluid is being stored. Therefore, the compression fluid compression ratio of the air pressure chamber P1 is The lowering operation of the piston 1200 which is formed to be larger and descends to the lower side of the damper cylinder 1110 is limitedly operated according to the compression fluid pressure of the air pressure chamber P1 and the compression ratio of the air pressure chamber P1.

As described above, as the piston 1200 descends, the volume of the oil damper chamber P2 is expanded and the oil stored in the oil chamber C2 is sucked.

Hereinafter, an embodiment according to the present invention will be described in detail.

When the front suspension fork 1000 is subjected to an external impact from the unevenness of the road surface, the shift rod 1400 including the head tube 100 as shown in FIGS. 18 to 19, The damper cylinder 1110 is elevated toward the piston 1200 and the air pressure chamber P1 inside the damper cylinder 1110 is contracted in proportion to the external impact while maintaining the height of the damper cylinder 1200, The compressed fluid stored in the air pressure chamber P1 is pressurized and raised to a higher pressure. At this time, the volume of the oil damper chamber P2 is increased by the upward movement of the damper cylinder 1110, The oil is inhaled.

When the compression fluid pressure in the air pressure chamber P1 is increased to a higher pressure, the piston 1200 is actuated to increase the pressure of the compressed fluid, and the compressed fluid in the air pressure chamber P1 is supplied to the piston The pressure of the pressurized fluid in the air pressure chamber P1 is not increased any more, and the upward movement of the piston 1200 is stopped. As a result, The air chamber C1 is raised to a higher pressure and the air tanks T1 and T2 of the front tubes 230 and 230 'are connected to each other through the air inlet and outlet of the piston 1200 and the connecting means 1160, (T1 ').

The compressed fluid in the air pressure chamber P1 constituting the damper cylinder 1110 due to the external impact of the front fork 200 is dispersed in the air chamber C1 and the air tanks T1 and T1 ' The compressed fluid pressure in the air pressure chamber P1 is smoothly absorbed by the damper cylinder 1110 while the pressure of the compressed fluid in the air pressure chamber P1 is maintained at an appropriate pressure.

If the external impact of the front fork 200 is transmitted while the air pressure chamber P1 is hermetically sealed from the outside, the air pressure chamber P1 of the damper cylinder 1110 is connected to the air pressure chamber P1 of the damper cylinder 1110 A high compression ratio proportional to the lift-up operation is formed, so that the action of suppressing the ascending operation of the damper cylinder 1110 is directed, so that the external shock absorption of the damper regulator becomes poor.

When the external impact of the damper regulator is removed, the height of the shift rod 1410 including the piston 1200 is maintained. On the other hand, the damper cylinder 1110 is compressed fluid inflatable The pressure of the air pressure chamber P1 is lowered so that the high pressure fluid discharged to the air chamber C1 is formed in the plane adjuster 1310 The air damper action is gently rebounded to the air pressure chamber P1 through the air damper flow path after the damper action of the air damper valve.

The high pressure compressed fluid stored in the air tanks T1 and T1 is rapidly returned to the air chamber C1 through the connecting means 1160 and the air inlet and outlet of the piston 1200, The action of the air damper through the air damper valve of the plane regulator 1310 is produced.

At the same time, the oil damper chamber P2 compresses to shrink the volume so that the oil fluid in the oil damper chamber P2 returns and flows to the balbal channel and the valve chamber of the adjusting valve 1340 of the damper adjusting means The oil fluid damper action of the oil fluid is directed according to opening / closing control of the control valve 1340, so that the expansion and fall operation of the damper cylinder 1110 is gentle and the damper buffer control of the damper controller is directed .

Therefore, the damper regulator of the present invention comprises: When an external impact is applied during the bicycle traveling, the action of the rebound damper of the compressed fluid and the action of the fluid flow rebound damper of the oil are simultaneously performed, so that the external impact of the front fork 200 is quickly and gently removed. When the damper operating portion 1360 is rotated and adjusted, the rebound dampers of the compressed fluid and the oil fluid flow are adjusted together.

On the other hand, the damper control unit 1300 rotates the damper control unit 1360 to block the air damper channel and the air inlet / outlet channel including the air outflow channel formed in the piston 1200 by the plane control unit 1310 The outflow of the compressed fluid from the air pressure chamber P1 is blocked by the external impact of the front fork 200 so that the compressed fluid filled in the air pressure chamber P1 is higher in the inside of the air pressure chamber P1 The damper cylinder 1110 is restrained from being lowered by the pressure of the piston 1200 and the damper cylinder 1110 is prevented from being moved upwardly and thus the compression damper operation is interrupted (locked-out) State.

Since the valvet flow path formed in the piston 1200 is blocked through the adjusting valve 1340 of the damper adjusting means 1300, the oil fluid flowing into the oil damper chamber P2 flows out into the oil chamber C2 So that the damper action interruption (lock-out) state of the damper regulator is more reliably maintained.

The damper adjusting unit 1300 may be rotated by the damper adjusting unit 1300 so that the height of the damper adjusting unit 1300 may be adjusted to the height of the damper adjusting unit 1300, Pressure fluid formed at a high pressure in the air pressure chamber P1 of the damper cylinder 1110 flows through the air outflow path to the air chamber C1 and the air tank T1, The pressure of the air pressure chamber P1 is lowered and the pressure of the piston 1200 is increased by a load force acting as the shift rod 1400 (for example, when a person is carried on a bicycle saddle) Is lowered to the lower side of the air pressure chamber P1 and the height of the damper regulator 1000 of the present invention is adjusted to be lower.

In this state, when the height of the damper adjuster 1000 is lowered, the external force acting on the shift rod 1400 (for example, when the bicycle head tube 100 is removed from the bicycle saddle or when the bicycle head tube 100 is lowered) The external force acting on the piston 1200 is reduced and the piston 1200 and the shift rod 1400 are raised to an appropriate height by the compression fluid expansion action of the air pressure chamber P1, And the height of the head tube 100 of the bicycle is adjusted to a high level. At this time, the compressed fluid stored in the air chamber C1 passes through the air damper passage of the piston 1200, (P1).

Although the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

It will be apparent to those skilled in the art that various modifications may be made without departing from the scope and spirit of the invention.

10: Steering tube 11: Adjustable lever shaft
14: regulating lever 15: connecting lever
20: Crown 30: Damper adjusting lever
40: arch connecting member 50: damper suspension fork
51,61 Suspension outer cylinder 52, 62: Suspension inner cylinder
53: compression damper means 54: rebound damper means
100: head tube 101: entrance
100a: top tube 100b: bottom tube
110: Bearing mounting part 120, 120 ': Bear
130, 1431: Spacing 140, 224, 320:
200: front fork 210: coupling member
211: tube assembly 212, 216, 314: fastening hole
213: tube fixing hole 214, 1217: access
215: Air flow path 220:
221: communication channel 222, 1144: fastener
230: Pruning tube 240: Wheel fixing member
300: Stam 310: Stam fitting member
311: Cylindrical coupling part 312: Cylindrical part
313: through holes 315, 1143, 1321:
1000: damper regulator 1100: damper cylinder
1110: Damper cylinder body 1111, 1121: Inner cervical portion
1120: Rod section 1122, 1212a, 1214a, 1230: Oil ring
1130, 1220, 1320, 1341: fastening part 1140: head member
1141: head member body 1142: head member outer cylinder member
1145: extension part 1150, 1280: lake connecting member
1151: Fixing nose 1160: Connection means
1200: piston 1210: piston body
1211: damper adjusting hole 1211a: valve connecting hole
1211b: Valve chamber 1211c: Valve seat
1211d: Valve oil 1211e: Oil inlet
1212: Air outflow path 1212b, 1218: Check-valve chamber
1213: Air inlet / outlet passage 1214: Air damper flow path
1215: Selection hole 1216: Vertical channel
1219: Horizontal flow path 1240: Oil covering
1241: Extension flange 1250, 1260: Checkbold number
1261: Check sheet members 1252, 1262, 1171, 1373:
1270: Selector 1300: Damper adjusting means
1310: Planar adjuster 1311, 1346:
1312: Air opening / closing valve 1313:
1314: Air damper valve 1315: Selection port
1320: damper member engaging portion 1330: damper adjusting member
1331: Rotating hole 1340:
1342: driving part 1343:
1344: Valve surface 1345: Inlet port
1350: damper adjusting member 1360: damper operating portion
1361: Air inflow channel 1370: Injection valve means
1371: Valve seat 1372:
1375: Fixing pin 1380: Free piston
1400: Shift rod 1410: Shift rod body
1420: rod coupling portion 1421: through hole
1430: rod penetrating part 1431: supporting member

Claims (21)

A damper regulator is provided in which a bearing mounting portion is formed on an upper side of a head tube constituting a bicycle frame and a bearing is disposed on each of the bearing mounting portions and a damper control is provided inside the head tube below the bearing mounting portion;
A head tube disposed under the bearing mount; A damper cylinder constituted by the damper regulator and a shift rod which is inserted into and out of the damper cylinder are arranged and the rod coupling part is formed on the upper side of the shift rod so that the fixing means is fastened to the rod coupling part through the bearing The damper cylinder and the shift rod being pivotally coupled to the inside of the head tube by being engaged with the damper cylinder;
The damper cylinder comprising: A front fork supporting the front wheel of the bicycle is coupled to a lower side of the damper cylinder so that the compressed fluid is stored inside the damper cylinder and the shift rod including the front fork;
A piston is formed at the lower end of the shift rod and is disposed inside the damper cylinder; The damper adjusting means including the damper adjusting member and the damper operating portion is provided to control the damping control and the height of the damper adjuster, and the front fork including the damper cylinder is rotated together with the inside of the head tube A bicycle front suspension fork with. The method according to claim 1,
The damper regulator includes: a damper adjusting means and a piston including a shift rod disposed inside the damper cylinder, an air pressure chamber is formed below the piston, and a head member for sealing the air pressure chamber is coupled to the lower portion of the damper cylinder And the shift rod is formed in a pipe shape and an air chamber in which a compressed fluid is stored is formed inside;
Wherein the front fork comprises a front tube and the front tube is formed with an air tank for storing compressed fluid;
The air chamber and the air tank communicate with each other through a connecting means so that the compressed fluid flows in and out between the air pressure chamber and the air chamber under the control of the damper adjusting means and the compressed fluid flows in and out between the air chamber and the air tank through the connecting means. A bicycle front suspension fork with. The method according to claim 1,
Wherein the support member of the rod engaging portion is disposed in close contact with a bearing disposed on a lower surface of the bearing mounting portion and a bearing disposed on the upper surface of the bearing mounting portion, The upper and lower ends of the shift rod are connected to each other, and the upper and lower ends of the shift rod are coupled with each other. And;
The damper cylinder is opened and closed to the lower side of the head tube so that the damper cylinder moves in and out of the head tube and rotates in the head tube;
Wherein a front fork, in which a compressed fluid is stored, is fixedly coupled to a lower side of the damper cylinder, so that the damper cylinder of the damper adjuster doubles to operate the front fork. The method of claim 1, wherein
The front fork comprising: A coupling member fixedly coupled to the damper cylinder, a pipe-shaped front tube fixedly coupled to the lower side of the coupling member, and a compressed fluid being introduced into the coupling member at a lower side between the coupling member and the front tube And a communicating member is coupled with the compressed fluid to allow the compressed fluid to flow in and out between the damper regulator and the front tube. 5. The method of claim 4,
Wherein the engaging member comprises: A tube fixing body is formed to protrude from both sides of the coupling hole of the coupling member while a coupling hole through which the damper cylinder is coupled is formed at the center of the upper surface of the body of the coupling member, tube fixing holes are formed at both lower sides of the tube coupling body, The front tube is fixedly coupled to the tube fixing hole, and an entrance and exit passage communicating with the tube fixing hole and an inside of the coupling hole are formed on a lower surface of the coupling member;
The communication member comprising: A fixing member provided on the lower surface of the coupling member and fixedly coupled to the fixing member; And a communication passage in the horizontal direction communicating with the entrance and exit openings formed at the lower side of the coupling member and the entrance and exit openings, respectively;
The front tube comprising: Wherein an air tank in which a compressed fluid is stored is formed on the inner side of the front tube, and a wheel fixing member, in which the air tank is closed and a bicycle front wheel is supported, is fixedly coupled to a lower portion of the front tube. 6. The method of claim 5,
Wherein the engaging member comprises: Wherein the tube connecting body has an outflow channel formed at each of the tube coupling bodies so as not to be connected to the coupling holes of the coupling member and being inclined at a predetermined angle R from the lower surface of the tube coupling body to the outside of the coupling hole with respect to the coupling hole, And is in communication with the upper side of the tube fixing hole. 7. The method according to any one of claims 5 to 6,
The center line of each of the tube fixing holes on both sides of the tube coupling body is spaced apart by a predetermined distance and the center line of the tube fixing hole is extended at a predetermined angle Formed downwardly inclined;
The front end of the front tube is spaced apart by a predetermined distance, and each of the wheel fixing members comprises: Wherein a wheel fixing portion that is vertically downward on a center line of the front tube is formed at a predetermined angle so that each of the wheel fixing portions is spaced apart at a predetermined interval, and a bicycle front wheel is disposed on the wheel fixing member Suspension fork. 3. The method of claim 2,
And a connecting means for communicating with the air chamber is coupled to the lower surface of the piston so as to be spirally arranged in the damper cylinder and an end portion of the connecting means is fixedly coupled to the head member, The bicycle front suspension fork is characterized in that the compressed fluid enters and exits between the air chamber and the air tank in a communicating manner. 3. The method according to any one of claims 1 to 2,
The damper cylinder includes: Wherein an air pressure chamber and an oil damper chamber, which are variable with respect to the piston, are defined, with a rod portion and a head member in and out of which a shift rod enters and exits;
Inside the shift rod; And a damper operating part is installed at an upper end of the damper adjusting member so as to be connected to the rod coupling of the damper adjusting member, And is configured to protrude upwards;
The piston includes: And an air outflow path for controlling the compressed fluid between the air pressure chamber and the air chamber while being provided with a planar adjusting body constituted by the damper adjusting means, thereby constituting an air damper passage and an air inlet / And the piston is controlled to open and close in accordance with the operation of the plane adjusting body. A check valve for controlling the oil fluid and a control valve provided on the damper control means are provided to control damper buffering of the oil fluid between the oil damper chamber and the oil chamber. 10. The method of claim 9,
The piston comprising: A piston body is slidably brought into sliding contact with the inner surface of the damper cylinder, an oil ring is provided on the outer periphery of the piston body, and a rod coupling portion to which the shift rod is coupled to the piston body is formed, A damper chamber and a valve seat are formed under the valve fitting hole with a damper adjusting hole and a valve fitting hole formed therein and a valve opening and an oil inlet are formed at a lower side of the valve seat to fix the oil covering;
The valve chamber and the valve channel are communicated with each other from the upper end of the outer circumference of the piston body to the upper side of the oil ring to form a vertical flow channel in which the oil fluid enters and exits and a check valve chamber in which the vertical channel and the valve chamber communicate with each other is formed A check valve is provided in the check valve chamber and a check valve is provided to the check valve, and a horizontal flow passage is formed in which the vertical flow passage and the valving flow passage communicate with each other;
A damper adjusting member constituted by damper adjusting means for controlling and controlling the adjusting valve is disposed in the damper adjusting hole while the adjusting valve is provided in the valve connecting hole and the valve chamber, Bicycle front suspension fork with adjustable features. 11. The method of claim 10,
The adjusting valve of the damper adjusting means comprises: A rectangular driving part is formed on the threaded part with a threaded part engaged with the barbed hole by screwing, A valving guide portion communicating with the horizontal flow passage and having a valving surface is formed on an outer circumferential surface of the valve guiding portion; An inlet and an outlet being formed in the upper surface of the control valve so that the inlet and the upper surface of the control valve are vertically communicated with each other;
A damper adjusting device according to the present invention includes: a damper adjusting member for adjusting a damper adjusting member; a damper adjusting member for adjusting the damper adjusting member; Wherein the valve opening and closing operation of the valve is controlled while the valve is operated up and down. 11. The method of claim 10,
The piston comprising: A check valve means is provided to restrict flow of the compressed fluid to the air outflow passage in a limited manner by forming an air outflow passage communicating with one side of the upper surface of the piston on the predetermined circle of the damper adjusting hole outer portion and the piston bottom,
And an air damper passage and an air inlet / outlet passage, through which the upper end of the piston and the lower end of the piston communicate with each other at a predetermined distance from the air outlet passage with respect to the damper adjusting hole, And a selection hole is formed on the upper surface of the piston so as to be spaced apart from the air outlet passage by a predetermined distance with respect to the damper adjusting hole as a reference, ;
The upper portion of the damper adjusting member of the damper adjusting means; A planar adjuster slidably in sliding contact with an upper surface of the piston; An air damper valve for opening and closing the air damper passage, the air damper valve including a plurality of selection holes selected by the selector and a plurality of air opening / closing valves for opening / closing the air outflow passage; Characterized in that the compressed fluid is restrictedly introduced into and out of the air pressure chamber and between the air pressure chamber and the air chamber. 13. The method of claim 12,
Wherein the damper adjusting means comprises a planar adjusting body formed on an upper side of the damper adjusting body with a rectangular pivot hole formed in a lower surface of the damper adjusting body, A plurality of selection openings including the air outflow path and opening / closing the air damper flow path and the air inlet / outlet path are formed at predetermined intervals, and in a state in which the first and second selection ports are selected in the selection body, Wherein the air damper valve for regulating the air damper flow passage is provided with a flow path for the compressed fluid in a state in which the air opening / closing valve and the opening / closing port are formed so that the air inlet / And a second selection port having a small flow amount of the compression fluid are formed at predetermined intervals to control and regulate the flow of the compressed fluid;
Wherein a cutter bar portion is formed in the planar adjustment body such that the air damper channel and the air inlet and outlet are blocked by including the air outlet channel in a state where the third selector is selected in the selection body, Suspension fork. 14. The method of claim 13,
Wherein a fourth selection port is formed between a first selection port and a second selection port of the plane regulating member constituting the damper adjusting means and a fourth selection port is formed in the selection member, And the second selector are selected, the air outlet and the air inlet and outlet are respectively formed as circular arc valves and circular arc openings for the air opening and closing valve and the opening and closing port, respectively, and the air damper valve comprises: A continuous circular arc damper sphere in which the flow of the compressed fluid gradually decreases from the first damper sphere to the second damper sphere is formed so that the compressed fluid flow of the air outflow path and the air inlet and outlet is freely taken in and out, Characterized in that the flow of the compression fluid is controlled and controlled. 10. The method of claim 9,
Wherein an injection valve is formed in the center of the damper control portion of the damper regulator with an air injection path formed therein, There is provided a free piston which variably stores an oil fluid;
Wherein a through hole is formed at the center of the rod coupling portion of the shift rod so that the damper operating portion is pivotally projected upward from the rod coupling portion to allow the compressed fluid to flow into the air chamber through the air injection path of the damper operating portion, Wherein when the damper operating portion is rotated, the control of the damper adjusting means is directed to control the dampers to be damped. delete 10. The method of claim 9,
Wherein the center of the inner diameter of the rod portion of the damper cylinder is spaced apart from the center of the inner diameter of the damper cylinder by a predetermined distance and the center of the shift rod coupled to the upper side of the piston is located at the center of the inner diameter of the damper cylinder Being spaced apart at predetermined intervals;
The center of the damper adjusting member and the damper adjusting member provided on the piston are disposed in the same line as the center of the shift rod and the piston is prevented from rotating inside the damper cylinder, A bicycle front suspension fork characterized in that the adjustment means is pivoted at the piston. 11. The method of claim 10,
Wherein the center of the rod coupling part of the piston is spaced apart from the center of the outer diameter of the piston by a predetermined distance so that the shift rod is fixedly engaged and the center of the damper adjustment hole of the piston is formed in the same line as the center of the rod coupling part And the damper adjusting means of the damper adjusting means is provided in the damper adjusting hole so that the center of the damper adjusting means is formed in the same line as the shift rod and the center of the damper adjusting means. 3. The method of claim 2,
A screw coupling portion is formed on a lower outer circumferential surface of the damper cylinder, and on the inner side of the damper cylinder; The lower end of the head member is constituted by an extension part whose outer diameter is enlarged, while the head part is provided with the space part in which the connecting part is accommodated and the lake connecting member for engaging the connecting part is fixedly connected;
And the head member is fixedly coupled to the damper cylinder by an engaging member constituting the front fork while the extension of the head member is disposed closely to the lower end of the damper cylinder. The method of claim 3,
The shift rod has a rod penetrating portion penetrating the bearing to a lower side of the rod coupling portion, the rod penetrating portion being formed to be smaller than the body diameter of the shift rod, Wherein a disk-shaped support member is detachably arranged on the lower end and the outer peripheral surface of the rod penetrating portion, and is closely fitted to the bearing on the lower surface of the head tube bearing mounting portion. The method of claim 3,
Said stem comprising: And a cylindrical coupling portion on which the bicycle handle is mounted is formed on the other side of the stem coupling member, and the end of the cylindrical coupling portion is formed with a through hole on one side of the stem coupling member, Wherein a fastening hole for clamping the two engaging members is formed in the fastening hole;
The two stamble coupling members are fixed to the rod coupling portion by a fixing means and are fixed to the rod coupling portion by a fixing means while being arranged as a pair facing each other up and down on the outer side of the rod coupling portion, Characterized in that the fastening means is fastened to the bicycle front suspension fork.

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