CN109386573B - with fasteners - Google Patents

Abstract

To provide a belt fastener capable of making it difficult for a closed rotating lever to be detached from a base portion, capable of securely and firmly tightening a resin belt to prevent loosening, and additional temporary fixing for temporarily fixing the rotation of the resin belt and the lever function, so that the operability can be improved. The locked parts (12b, 12b) of the base part (12) are provided with locked holes (12b1, 12b1), and the locked holes (12b1, 12b1) have top surfaces gradually inclined upward from the inner side to the outer side On the other hand, the locking slopes (11c1, 11c1) are provided on the locking portions (11c, 11c) of the rotating lever (11), and the locking slopes (11c1, 11c1). The sloped parts (11c1, 11c1) are gradually inclined upward from the inside to the outside when the pivot lever (11) is closed to the base part (12), so as to be engaged with the sloped surfaces for locking of the locking holes (12b1, 12b1) part (12b11, 12b11).

Description

with fasteners

technical field

The present invention relates to a belt fastener including a rotating lever that rotates while stretching a resin belt having a plurality of core wires built into a resin member, and a base portion that rotates the rotating lever to lock the belt, the belt Fasteners are used for attaching such resin tapes to utility poles or in packaging or the like.

Background technique

In recent years, in order to fix cables, conduits, protective plates, etc. on the peripheral surface of utility poles, or to install supports such as advertisements and street lights, polyester or stainless steel tapes, which have little extensibility, have been used. As a fastener for such a belt, the other end of the belt is locked to the base portion, and a rotating lever for belt tightening is rotatably attached to the base portion, and the belt is wound through the rotating rotating lever. One end side of the belt is drawn into the shaft, and a tensile force (tension) is applied to the belt, and the rotating rod is locked to the base part in the state where the tensile force is applied to the belt, and the belt is attached to a utility pole or the like. In this type of belt fastener, the tension of the belt gradually increases as the rotation lever is closed, and an excessive load is required at the time of final tightening. Therefore, if the belt is stretchable, the belt can be easily Fastening, but in the case of a polyester or stainless steel band that has little extensibility, a method of reducing the excessive load at the time of final fastening is required.

Then, the patent proposes a belt fastener (for example, refer to Patent Document 1), and the belt fastener, which is a belt with little extensibility, has a member such as a rotating lever for belt tightening that can be pulled up. It is installed on the fastener main body downside down, a belt insertion hole is formed near the base of the rotating rod, one end of the belt is connected and fixed to the fastener main body, and the rotating rod is erected outward relative to the fastener main body. The other end of the belt is inserted through the belt insertion hole in the raised state, and the above-mentioned rotating lever is lowered to the fastener main body side, so that the belt is fastened. In this type of belt fastener, the above-mentioned rotating lever is The fastener body in the vicinity of the base is provided with a guide hole for inserting the belt through the belt insertion hole, and the belt insertion hole continuously communicates with the guide hole when the rotating rod is raised to the outside of the fastener main body. .

Patent Document 1: Patent No. 3880657.

However, recently, compared with metallic tapes made of stainless steel or the like, resin tapes in which a plurality of core wires having little extensibility such as aramid fibers, glass fibers, and steel wires (wires) are built into resin members are used.

However, in the above-mentioned conventional belt fastener, the paragraph [0012] of the specification only describes that "the locking projections 23 are integrally provided on both sides of the free end side of the operation lever 2, The locking protrusion 23 is engaged with the locking hole 13 provided on the main body side, so that the operation lever 2 is locked and locked.” As shown in FIG. 4 of the above-mentioned patent and FIG. 18 of the present application, the cross section of the top of the lever is equal to Since the locking protrusion of the waist triangle is engaged with the locking hole of the base portion, even when the belt is passed through the lever to be in a locked (fully closed) state with respect to the base portion, the pulling force acting on the belt The extension force also acts in the direction of opening the lever, so there is a problem that the locking protrusion at the tip of the lever is easily disengaged from the locking hole at the tip of the base portion.

In particular, since resin tapes are more easily stretched and change over time than metal tapes, it is necessary to apply a larger tensile force than metal tapes in the initial stage of fastening. Therefore, in the above-mentioned conventional tape fasteners, the rod tip The cross-section is an isosceles triangle and the locking projection is easily disengaged from the locking hole of the base.

Furthermore, in the above-mentioned conventional belt fastener, after the belt is passed through the lever, the so-called temporary fixing function for temporarily fixing the rotation of the belt and the lever is not provided in the middle of moving the lever from the wide open state to the fully closed state. , therefore, there is also a problem of poor operability in this regard.

SUMMARY OF THE INVENTION

Therefore, the present invention has been made in view of the above-mentioned problems, and its object is to provide a belt fastener capable of making it difficult for the closed pivot lever to be detached from the base portion, and capable of securely and firmly tightening the resin belt to prevent loosening, In addition, a temporary fixing function for temporarily fixing the rotation of the resin tape and the rod is added, so that the operability can be improved.

In order to solve the above-mentioned problems, the belt fastener of the present invention includes a rotating lever that rotates while drawing a resin belt having a plurality of core wires built into a resin member, and a base portion that rotates the rotating lever to lock the rotating lever. , the belt fastener fastens and installs the resin belt to an object such as a utility pole, and the belt fastener is characterized in that:

The rotating rod is provided with a locking portion on the top end portion side of the rotating rod, and a belt winding portion and a rotating shaft portion are provided on the base end portion side of the rotating rod,

The belt winding part is provided with:

A belt insertion hole through which one end of the resin belt passes from the tip end side of the rotating rod,

The belt stretching portion is located at a position closer to the distal end portion of the rotating rod than the rotation center of the rotating shaft portion, and when the rotating rod is rotated from the open state to the locked state, the resin tape is wound and stretched. one end side of the resin tape, a tensile force is applied to the resin tape,

The base is provided with:

a belt locking part for locking the other end of the resin belt,

a rotating shaft supporting part for supporting the rotating shaft part of the rotating rod rotatably,

The locked portion is locked by the locking portion of the rotating lever,

The locked portion of the base portion is provided with a locked hole, and the locked hole has a locked inclined portion whose top surface is gradually inclined upward from the inner side to the outer side,

The locking portion of the rotating lever is provided with a locking slope portion, and the locking slope portion is gradually inclined upward from the inner side to the outer side when the rotation lever is closed to the base portion, so as to be locked. The beveled portion for locking ends at the locking hole.

Here, the top end portion of the rotating rod is provided with a raised portion in which the center is raised more than both sides.

In addition, in the rotation shaft portion of the rotation lever, the size of the outer diameter of the left and right rotation shaft portions is changed,

The left and right rotation shaft support parts of the base part respectively have bearing holes for supporting the left and right rotation shaft parts of the rotation rod, and the left and right bearing holes have a bearing hole corresponding to the left and right rotation shaft parts of the rotation rod. The size of the outer diameter corresponds to the inner diameter.

In addition, a state switching protruding portion is provided at the rear end portion of the base portion, and the state switching protruding portion and the tape are wound when the rotation lever attached to the base portion is rotated. The end portion for engagement that is separated from the belt insertion hole in the belt stretching portion of the portion is engaged,

When the state-switching convex portion is located on the side of the belt stretching portion, a wide open state in which the pivot lever is widely opened with respect to the base portion is maintained, and on the other hand, when the state is opened from the wide opening When the state is rotated in the direction in which the turning lever is closed and the engaging end portion passes over the state switching convex portion, the end portion on the tape outlet side of the tape insertion hole in the tape winding portion passes through. The resin tape is sandwiched between the tape bending and gripping protrusions of the base portion, and the resin tape is temporarily fixed.

In addition, when the rotating lever on which the resin tape is wound is rotated to be in a locked state in which the locking portion is locked to the locked portion of the base portion, the state is switched. The resin tape is sandwiched between the convex portion and the end portion of the tape winding portion on the tape outlet side of the tape insertion hole opposite to the side where the tape stretching portion is formed .

In addition, among the ends on the tape outlet side of the tape insertion hole of the tape winding portion, the end portion on the opposite side to the side where the tape stretching portion is formed is smaller than the tape insertion hole. Among the ends on the belt outlet side of the hole, the end portion on the side where the belt stretching portion is formed and the upper and lower end portions on the belt inlet side of the belt insertion hole are formed at smaller acute angles.

In addition, the base portion is further provided with a concave portion for turning the winding portion, and the recessed portion for turning the winding portion is formed as a recess so as to allow the turning of the tape winding portion on which the resin tape is wound, and A gap is formed between the concave portion for turning the winding portion and the tape winding portion,

In the pivot lever, a central opening is further formed between the distal end portion side of the pivot lever and the tape winding portion, and a main bridge connected to both left and right side surfaces is formed in the central opening. department,

On the tape outlet side of the concave portion for turning the winding portion in the base portion, a tape bending and gripping protruding portion is formed, and the tape bending and gripping protruding portion is directed to any of the central openings. A first central opening portion between the main bridge portion and the tape winding portion protrudes, and a first central opening portion is protruded between the tape bending and clamping convex portion and the main bridge portion and the tape winding portion. The resin tape is bent and clamped.

In addition, a base-side stepped portion is formed on the side of the concave portion for turning the winding portion in the convex portion for bending and clamping the tape.

When the rotation lever is rotated to be in a locked state in which the locking portion is locked with the locked portion of the base portion, the locking portion is connected to the belt bending and clamping convex portion. A rod-side stepped portion is formed on the belt winding portion facing the base-side stepped portion,

In the locked state, the resin tape is bent and sandwiched between the base-side stepped portion and the lever-side stepped portion.

In the belt fastener of the present invention, the locked portion is provided with a locked hole having a locking slope portion whose top surface is gradually inclined upward from the inner side to the outer side, and on the other hand, The locking portion of the rotating lever is provided with a locking slope portion, and when the rotating lever is rotated and closed to the base portion, the locking slope portion is gradually inclined upward from the inner side to the outer side, so as to be locked to the locked portion. Because of the inclined surface portion for locking of the hole, it is possible to make it difficult for the closed pivot lever to be detached from the base portion, so that the resin tape can be securely fastened.

Description of drawings

FIGS. 1A and 1B are a plan view and a bottom view, respectively, of the belt fastener according to the embodiment of the present invention (rotation lever is in a wide open state).

FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1A .

3A and 3B are a front view and a rear view, respectively, of the belt fastener according to the embodiment of the present invention (rotation lever is in a wide open state).

4 is an enlarged view of the left side of the belt fastener (rotation lever is in a wide open state) according to the embodiment of the present invention.

5 is an enlarged view of the right side of the belt fastener (rotation lever is in a wide open state) according to the embodiment of the present invention.

6A and 6B are a plan view and a bottom view, respectively, of the rotating lever with fasteners constituting the embodiment of the present invention.

FIGS. 7A and 7B are a front view of the pivot lever with a fastener constituting the embodiment of the present invention, and a cross-sectional view taken along the line B-B in FIG. 6A , respectively.

8A and 8B are a left side view and a right side view of the rotating lever with fasteners constituting the embodiment of the present invention, respectively.

9A and 9B are a plan view and a bottom view of the base portion with the fastener constituting the embodiment of the present invention, respectively.

10A and 10B are a front view of a base portion with a fastener constituting an embodiment of the present invention, and a cross-sectional view taken along line C-C in FIG. 9A , respectively.

FIGS. 11A and 11B are a left side view and a right side view of the pivot lever with fasteners constituting the embodiment of the present invention, respectively.

12A and 12B are cross-sectional views showing a state in which one end of the resin tape is passed through the entrance of the tape insertion hole of the tape winding portion of the tape fastener (rotating lever is in a wide open state) according to the embodiment of the present invention, respectively , Enlarged sectional view of the main part.

FIGS. 13A and 13B are cross-sectional views showing a state in which one end of the resin tape is inserted through the tape insertion hole of the tape winding portion of the tape fastener (rotating lever is in a wide open state) according to the embodiment of the present invention, and the main part is enlarged. Cutaway view.

FIGS. 14A and 14B respectively show that after inserting one end of the resin tape through the tape insertion hole of the tape winding portion, the turning lever is turned in the closing direction and the engagement end of the tape pulling portion of the turning lever is switched over the state. A cross-sectional view of a state in which the resin tape is temporarily fixed by the convex portion, and an enlarged cross-sectional view of a main part.

FIGS. 15A and 15B respectively show that after passing one end of the resin tape through the tape insertion hole of the tape winding portion, the turning lever is rotated in the closing direction and the locking portion at the tip of the turning lever is locked to the base portion. A cross-sectional view of a locked state in which the pivot lever is completely closed, and an enlarged cross-sectional view of the main part.

FIGS. 16A and 16B respectively show that after one end of the resin tape is inserted through the tape insertion hole of the tape winding portion, the turning lever is rotated in the closing direction and the locking portion at the tip of the turning lever is locked to the base portion. A front view of a locked state in which the rotation lever is completely closed with the stop portion, and a cross-sectional view taken along the line D-D in FIG. 16A .

17A and 17B respectively show a locked state in which the turning lever of the tape winding portion is rotated in the closing direction, the locking portion at the tip of the turning lever is locked with the locked portion of the base portion, and the turning lever is completely closed. Front view, cross-sectional view taken along line E-E in FIG. 17A .

18 is a cross-sectional view showing a locking state of a locking projection (locking portion) with a conventional fastener and a locking hole.

Explanation of reference numerals:

1 with fastener

11 Turn the lever

11a Tape winding section

11a1 with through hole

11a2 First belt winding section

11a21 Concave and convex part

11a21a Rib part

11a21b Grooved part

11a22 with outlet side end

11a23 with inlet side end

11a24 Rod side step

11a3 Second belt winding section

11a31 With stretch section

11a32 with outlet side end

11a33 with inlet side end

11a34 Fitting end

11b1, 11b2 Rotary shaft

11c, 11c Locking part

11c1, 11c1 Bevel for locking

11c2, 11c2 Bevel for guidance

11d tongue part

11e Central opening

11e1 First central opening

11e2 Second central opening

11e3 Third central opening

11f1 main bridge

11f2 Sub bridge

11g bump

12 Base part

12a1, 12a2 Rotation shaft support

12a11, 12a21 Bearing hole

12a12, 12a22 Guide groove part

12b, 12b Locked part

12b1, 12b1 locked hole

12b11, 12b11 Bevel for locking

12b12, 12b12 horizontal face

12b2, 12b2 Beveled part for guiding the locking part

12c with locking hole

12d Recess for winding part rotation

12e With convex part for bending and clamping

12e1 Pedestal side step

12f Convex for state switching

12g legs

2 resin belts

2a Resin components

2b core wire

3 Electric pole (object)

Detailed ways

Hereinafter, embodiments of the belt fastener according to the present invention will be described with reference to the drawings. In addition, the embodiment described below is only an example of the present invention, and the present invention is not limited to the following embodiment, and can be appropriately changed within the scope of the technical idea of the present invention.

The belt fastener 1 of the present embodiment is made of synthetic resin or the like, and as shown in FIGS. 1A to 5 , the belt fastener 1 is composed of a rotating rod 11 and a base portion 12 , as shown in FIGS. 12A to 16B , This is used when the resin tape 2 is fastened to an object such as a utility pole 3 .

As shown in FIG. 16B , the resin tape 2 is a resin member 2a made of a soft synthetic resin such as polyvinyl chloride (PVC) with a plurality of aramid fibers, glass fibers, wires (steel wires), etc. A tape of the core wire 2b that is extensible and has a large tensile stress.

<Structure of the rotating lever 11>

As shown in FIGS. 1A to 8B , etc., the pivot lever 11 has a tape winding portion 11a and pivot shaft portions 11b1 and 11b2 on the base end side, and has locking portions 11c and 11c and a tongue on the tip portion side. The piece portion 11d is rotated approximately 180 degrees from the wide open state shown in FIGS. 1A to 5 by rotating around the rotation shaft portions 11b1 and 11b2, and is brought into the locked (closed) state shown in FIGS. 15A and 16A .

It should be noted that the wide open state is the maximum state in which the pivot lever 11 is opened by 180 degrees with respect to the base portion 12, and there may be room for only a slight angle of rotation from the maximum open state.

The tape winding part 11a is provided with a tape insertion hole 11a1 through which one end of the resin tape 2 passes. The size in which the resin tape 2 can be inserted smoothly.

It should be noted that the upper side in the wide open state of the rotating lever 11, that is, the upper side in FIGS. 6A to 8B is referred to as the first tape winding portion 11a2, and the lower side in the wide opening state of the rotating lever 11 is referred to as the first tape winding portion 11a2. The lower side in FIGS. 6A to 8B is referred to as the second tape winding portion 11a3. The first tape winding portion 11a2 and the second tape winding portion 11a3 have a tape insertion hole 11a1 interposed therebetween.

As shown in FIGS. 6A and 8A , the first tape winding portion 11 a 2 of the tape winding portion 11 a is provided with a plurality of concave line portions 11 a 21 b and protruding line portions 11 a 21 a extending in parallel at predetermined intervals with respect to the longitudinal direction of the resin tape 2 . The concave-convex strip portion 11a21.

Accordingly, when the turning lever 11 is closed, the resin tape 2 is stretched by the tape stretching portion 11a31 through the concave-convex strip portion 11a21 of the first tape winding portion 11a2, and a large tensile force acts on the resin tape 2, so that the resin tape 2 is stretched. 2 is pressed by the uneven strip portion 11a21.

Therefore, when the resin tape 2 is put into the locked (fully closed) state with respect to the base portion 12 by passing through the rotating lever 11, the resin tape 2 is pressed by the concave-convex line portion 11a21 and deformed into the concave-convex shape of the concave-convex line portion 11a21. , so that the resin member 2a around the core wire 2b more firmly clamps the core wire 2b or joins the core wire 2b.

As a result, even if the resin tape 2 is strongly sandwiched by the convex portion 11a21a of the 11a21 of the turning lever 11 and the winding portion turning recess 12d of the base portion 12, the resin member 2a around the core wire 2b can be prevented from being torn off. The resin member 2a is separated from the core wire 2b by cracking, and since the tape tightening operation is reduced again, the workability can be improved.

In addition, as shown in FIG. 7B and the like, the tape outlet side end portion 11a22 of the first tape winding portion 11a2 in which the uneven strip portion 11a21 is formed is compared with the tape inlet side end portion 11a23 and the second tape winding portion 11a2 of the first tape winding portion 11a2. The tape outlet side end 11a32 and the tape inlet side end 11a33 of the tape winding portion 11a3 are formed at smaller acute angles.

In addition, as shown in FIGS. 7A and 7B , the tape inlet side end portion 11a23 of the first tape winding portion 11a2 protrudes toward the distal end portion side of the pivot lever 11 more than the tape inlet side end portion 11a33 of the second tape winding portion 11a3 out.

In addition, in the second tape winding portion 11a3, a tape stretching portion 11a31 is provided on the distal end portion side of the rotating lever 11, and when the rotating lever 11 is rotated from the open state to the locked state, the tape stretching portion 11a31 and the resin The belt 2 is in sliding contact, and the above-mentioned belt stretching portion is moved to the tip end portion side of the rotating rod 11 and one end of the resin belt 2 is stretched.

Here, as shown in FIG. 6B and the like, the belt stretching portion 11a31 is closer to the pivot lever from the center in the width direction (the short side direction of the pivot lever 11 or the pivot axis direction of the pivot shaft portions 11b1 and 11b2 ) toward both sides. The front end portion side of 11 , that is, the center in the width direction is closer to the rotation axis side of the rotation shaft portions 11b1 and 11b2 than the both sides, and is formed into a curved shape in plan view. However, in the present invention, the belt stretching portion 11a31 does not need to be formed in a curved shape in plan view, and the curved shape in plan view may be any shape, or may be a linear shape in plan view, not limited to the curved shape in plan view, and may be formed in a plan view curved shape V shape etc.

In addition, as shown in FIGS. 6A to 8B , in the rotation shaft portions 11b1 and 11b2 of the rotation lever 11, the outer diameter r1 of the rotation shaft portion 11b1 is made smaller than the outer diameter r2 of the rotation shaft portion 11b2, and the left and right outer diameters are changed, It is possible to reliably prevent the rotation lever 11 from being attached to the base portion 12 by mistake in the front and back of the rotation lever 11 . Therefore, the inner diameter of the bearing holes 12a11 and 12a21 of the rotation shaft support parts 12a1 and 12a2 of the base part 12 into which the rotation shaft parts 11b1 and 11b2 of the rotation rod 11 are fitted is also changed in size according to the outer diameter of the rotation shaft parts 11b1 and 11b2.

Moreover, the above-mentioned locking parts 11c and 11c and the tongue piece part 11d are provided in the front-end|tip part side of the rotation lever 11. As shown in FIG.

The locking portions 11 c and 11 c protrude laterally from the side surface of the distal end of the rotating rod 11 and are locked in the locked holes 12 b 1 and 12 b 1 of the base portion 12 .

Here, as shown in FIG. 17B to be described later, the locking portions 11c, 11c are respectively formed with locking inclined portions 11c1, 11c1 and guiding inclined portions 11c2, 11c2, the locking inclined portions 11c1, 11c1 being When the turning lever 11 is closed to the base portion 12, it is inclined gradually upward from the inner side to the outer side, so that the engaging inclined portions 12b11 and 12b11 of the engaging holes 12b1 and 12b1 of the base portion 12 are engaged. The guiding sloped parts 11c2 and 11c2 are inclined with respect to the locking sloped parts 11c1 and 11c1 so that the locking parts 11c and 11c can be easily locked in the locked holes 12b1 and 12b1.

Therefore, when the pivot lever 11 is closed in the locked (fully closed) state, the locking slope portions 11c1 and 11c1 of the locking portions 11c and 11c make it easier for the locking portions 11c and 11c to be locked to the cover of the base portion 12 . The locking holes 12b1, 12b1, on the other hand, after the turning lever 11 is closed to the locked (fully closed) state, the locking slopes 11c1, 11c1, which are gradually inclined upward due to the locking portions 11c, 11c, are closed by the base, respectively. Since the sloped parts 12b11 and 12b11 for locking of the to-be-locked parts 12b and 12b of the part 12 are locked, the locked state can be reliably maintained. That is, the locking portions 11c and 11c are configured in a shape that is easy to close and difficult to remove. In addition, the latching parts 11c and 11c and the to-be-latched hole 12b1 may have arbitrary shapes.

As shown in FIGS. 7A and 7B , the tongue portion 11 d of the pivot lever 11 protrudes upward more than the upper surface of the pivot lever 11 main body. In this way, when one end of the resin tape 2 reaches the tongue piece 11d from the tape winding portion 11a of the rotating lever 11, the tongue piece 11d presses the above-mentioned one end of the resin tape 2 from above and follows the electric wire The arrangement of the poles 3 and the like can prevent the resin tape 2 from being lifted from the utility poles 3 and the like. In particular, since the tongue piece portion 11d is formed in a curved manner as shown in FIGS. 3B and 4 , one end of the resin tape 2 can be smoothly bent downward along the outer peripheral surface of the utility pole 3 .

In addition, when releasing the rotating lever 11 in the locked state, the rotating lever 11 can be lifted by inserting a screwdriver (not shown) or the like with a tapered tip into the tongue portion 11d. In addition, in this invention, the provision of the tongue piece part 11d in the front-end|tip part of the rotation lever 11 is arbitrary, and may be abbreviate|omitted.

In addition, in order to reduce the weight of the rotating rod 11 or reduce the cost of raw materials, a central opening 11e with a large opening is formed between the distal end portion of the rotating rod 11 and the tape winding portion 11a, and the central opening 11e The main bridge 11f1 and the main bridge 11f1 and The sub bridge portion 11f2 is connected to the left and right side surfaces.

As will be described later, the main bridge portion 11f1 is directed to the first center between the tape-folding-pinching convex portion on the tape exit side of the tape-reeling recessed portion 12d provided in the base portion 12 and the tape-winding portion 11a The opening portion 11e1 protrudes, and the resin tape 2 is bent and sandwiched between the tape bending and clamping convex portion, the main bridge portion 11f1, and the tape winding portion 11a.

Thereby, compared with the case where the main bridge|bridging part 11f1 is not provided, the resin tape 2 can be fastened more reliably, and workability|operativity can be improved.

In addition, as shown in FIGS. 2 , 4 , 5 , 6A, 6B, etc., the top end portion of the pivot lever 11 is provided with a raised portion 11g in which the center of the upper surface is raised more than both sides.

Thereby, compared with the case where the protuberance 11g is not provided, the distal end portion of the pivot lever 11 can be pressed more strongly, and the locking portions 11c and 11c on the distal end portion side of the pivot lever 11 can be locked to the distal end of the base portion 12 . Because of the locked holes 12b1 and 12b1 on the side, the resin tape 2 can be tightened more reliably, and the operability can be improved.

<Configuration of the base portion 12 >

As shown in FIGS. 9A to 11B , the base portion 12 includes: pivot shaft support portions 12a1 and 12a2 for rotatably supporting pivot shaft portions 11b1 and 11b2 of the pivot lever 11 , and locked portions 12b and 12b for the pivot lever 11 The locking parts 11c and 11c are locked; the belt locking hole 12c locks the other end of the resin tape 2; the concave part 12d for winding part rotation;

The pivot shaft support parts 12a1 and 12a2 are erected on the rear side walls from both rear sides of the base part 12, and are provided with pivot shaft parts 11b1 and 11b2 protruding from both sides of the pivot lever 11 to be rotatably fitted in, respectively. The bearing holes 12a11 and 12a21 and the guide groove portions 12a12 and 12a22 for guiding the rotating shaft portions 11b1 and 11b2 to the bearing holes 12a11 and 12a21, respectively.

As described above, in order to prevent the front and back of the pivot lever 11 from being mistaken, the pivot lever 11 is attached to the base portion 12, and the dimensions of the outer diameters of the pivot shaft portions 11b1 and 11b2 of the pivot lever 11 are changed. Therefore, the base portion 12 The inner diameters of the bearing holes 12a11 and 12a21 and the groove widths of the guide grooves 12a12 and 12a22 of the rotation shaft support parts 12a1 and 12a2 are also changed in size according to the outer diameters of the rotation shaft parts 11b1 and 11b2.

The locked portions 12b and 12b are erected on the front side wall from both front sides of the base portion 12, and as shown in FIGS. The sloping portions 12b2 and 12b2 for guiding the locking portion, the locked holes 12b1 and 12b1 having the same cross-sectional shape as the cross-sectional shape of the locking portions 11c and 11c of the pivot lever 11 and on which the locking portions 11c and 11c are locked. The sloped portions 12b2 and 12b2 for guiding the locking portion are inclined so as to guide the locking portions 11c and 11c of the pivot lever 11 to the locked holes 12b1 and 12b1.

As shown in FIG. 17B to be described later, the locked holes 12b1 and 12b1 respectively have locked sloped portions 12b11 and 12b11 which match the inclination angles of the locking sloped portions 11c1 and 11c1 of the locking portions 11c and 11c. Horizontal surface parts 12b12 and 12b12 that are substantially horizontal and not inclined.

The tape locking hole 12c is a hole for fixing the other end of the resin tape 2, and its lateral and vertical widths are slightly larger than those of the cross-section of the resin tape 2, so that the resin tape 2 can be inserted smoothly.

The concave portion 12d for winding portion rotation is formed with a gap between the tape winding portion 11a and the tape winding portion 11a in order to allow the rotation of the tape winding portion 11a on which the resin tape 2 is wound. The cross-sectional shape of the tape winding portion 11a, the thickness of the resin tape 2, etc. are formed in a substantially curved cross-sectional shape so that the tape winding portion 11a on which the resin tape 2 is wound can be rotated from the wide open state to the locked (closed) state.

The tape bending and gripping protruding portion 12e is a protruding portion provided on the tape outlet side of the winding portion turning concave portion 12d, and as shown in FIGS. 15A and 15B to be described later, the turning lever 11 is closed to be locked (closed). In the state, the tape bending and gripping convex portion 12e protrudes toward the first central opening portion 11e1 between the main bridge portion 11f1 and the tape winding portion 11a in the central opening portion 11e of the rotating lever 11, and the main bridge The resin tape 2 is bent and sandwiched between the portion 11f1 and the tape winding portion 11a.

Here, a base side stepped portion 12e1 is formed on the tape inlet side of the tape bending and gripping convex portion 12e, that is, on the tape outlet side of the winding portion turning concave portion 12d, and the base side stepped portion 12e1 is provided with The resin tape 2 is sandwiched between the stepped portions on the side of the first tape winding portion 11a2 on which the uneven strip portion 11a21 is provided in the tape winding portion 11a.

The state switching protruding portion 12f is a protruding portion provided on the rear end portion of the base portion 12 so as to face the tape bending and gripping protruding portion 12e, and is used for the rotation lever 11 attached to the base portion 12. At the time of rotation, it engages with the engaging end portion 11a34 of the tape pulling portion 11a31 of the tape winding portion 11a of the turning lever 11 separated from the tape insertion hole 11a1 to switch the wide open state of the turning lever 11 and the resin tape 2 The part of the temporary locking state of temporary locking, etc.

That is, with the engaging end portion 11a34 of the pivot lever 11 serving as a boundary portion, when the state switching convex portion 12f is on the belt extension portion 11a31 side, the side face of the belt inlet side keeps the pivot lever 11 relatively large relative to the base portion 12. open wide open state.

On the other hand, when the state switching convex portion 12f is located on the belt extension portion 11a31 side of the rotating lever 11 from the wide open state in the direction of closing the rotating lever 11, the engaging end portion 11a34 of the rotating lever 11 passes over the state switching convex portion. 12f and move to the opposite side of the tape pulling portion 11a31, the end portion 11a22 on the tape outlet side of the first tape winding portion 11a2 of the rotating lever 11 and the base portion 12 are used for bending and clamping the tape. A temporarily fixed state in which the resin tape 2 is temporarily fixed by sandwiching the resin tape 2 between the convex portions 12e.

<How to use the belt fastener 1>

Next, a method of using the belt fastener 1 will be described with reference to FIGS. 12A to 17B .

First, as shown in FIGS. 12A and 12B , in a state where the other end of the resin tape 2 is locked to the base portion 12 with the tape fastener 1 in contact with the side surface of the utility pole 3 , one end of the resin tape 2 is moved along the The peripheral surface of the utility pole 3 is wound around once, and then one end of the resin tape 2 is inserted into the surface of the base portion 12 from the tape inlet side of the tape insertion hole 11a1 of the tape winding portion 11a of the rotating rod 11 in the wide open state. .

At this time, as shown in FIGS. 12A and 12B , since the tape inlet side end portion 11a23 of the first tape winding portion 11a2 is more toward the distal end portion side of the rotating rod 11 than the tape stretching portion 11a31 of the second tape winding portion 11a3 Therefore, when the leading end portion of the resin tape 2 comes into contact with the curved surface of the tape stretching portion 11a31, the leading end portion of the resin tape 2 and the entrance of the tape inlet side end portion 11a23 of the first tape winding portion 11a2 The inner surface of the tape inlet side 11a11 of the tape insertion hole 11a1 abuts on the inner surface, so that the leading end portion of the resin tape 2 can be reliably and quickly guided to the tape insertion hole 11a1, and the tape insertion operation can be improved. operability.

Next, as shown in FIGS. 13A and 13B , one end of the resin tape 2 is inserted into the tape insertion hole 11a1 of the tape winding portion 11a of the turning lever 11, and the tip portion is protruded by a predetermined length, and then the tape is turned. The lever 11 is rotated in the direction of the arrow α from the wide open state shown in FIG. 13A .

In addition, in the wide open state of the turning lever 11 that passes one end of the resin tape 2 through the tape insertion hole 11a1 of the tape winding portion 11a of the turning lever 11, as shown in FIGS. 12A to 13B , the base portion 12 The rear end state switching convex portion 12f engages with the engaging end portion 11a34 of the pivot lever 11 and is positioned on the belt stretching portion 11a31 side, thereby maintaining the wide open state of the pivot lever 11.

Therefore, in the belt fastener of the present embodiment, since the rotating lever 11 and the base portion 12 are stable in the wide open state in which the rotating lever 11 is widely opened with respect to the base portion 12, the belt fastener can be improved from this point as well. The operability of insert operations.

As a result, when the turning lever 11 is in the wide open state with respect to the base portion 12 and the resin tape 12 is passed through the tape insertion hole 11a1, the protrusion 12f for the state switching and the tape winding portion of the turning lever 11 are passed through. Since the tape stretching portion 11a31 of 11a is kept in a wide open state, the tape insertion operation by the operator becomes easy.

Next, as shown in FIGS. 14A and 14B , when the turning lever 11 is rotated by about 60 degrees from the wide open state, the state switching convex portion 12f is positioned at the wide opening state of the belt stretching portion 11a31 side of the turning lever 11 from the wide opening state. The engaging end portion 11a34 of the pivot lever 11 presses the state switching convex portion 12f and bends the state switching convex portion 12f to move over the state switching convex portion 12f to the opposite side of the belt stretching portion 11a31.

Then, as shown in FIGS. 14A and 14B , the end portion 11 a 22 of the first tape winding portion 11 a 2 of the rotating lever 11 is sandwiched between the tape outlet side end portion 11 a 22 and the tape bending and gripping convex portion 12 e of the base portion 12 . The resin tape 2 is held, and the resin tape 2 is temporarily fixed in a temporarily fixed state.

In addition, in the temporarily fixed state of the resin tape 2, since the engaging end portion 11a34 of the rotating lever 11 has passed over the state switching convex portion 12f, even if the tensile force of the resin belt 2 is directed in the direction of opening the rotating lever 11, that is, As long as the force in the return direction does not act as a tensile force of a predetermined value or more, the rotating rod 11 will not open.

As a result, since the tape fastener 1 of the present embodiment has a temporary fixing function capable of temporarily fixing the resin tape 2 and preventing the rotation lever 11 from returning, as compared with the prior art which does not have the function of temporarily fixing the resin tape 2 , Therefore, the height of the resin tape 2 can be changed by releasing the hand from the turning lever 11 while the resin tape 2 is temporarily fixed, and the operability can be improved even by opening the turning lever 11 again to fasten the resin tape 2 again. .

Next, when the turning lever 11 is further turned from the temporarily fixed state of the resin tape 2 and the turning lever 11 shown in FIGS. 14A and 14B , the resin tape 2 is wound by the tape stretching portion 11a31 of the second tape winding portion 11a3 while being wound up. As one side is stretched, the stretching force gradually increases.

Here, since the belt stretching portion 11a31 is formed in a curved shape in which the center portion in the width direction is recessed toward the center of rotation of the rotation shaft portions 11b1 and 11b2 than the both sides, the center portion in the width direction of the resin tape 2 is formed in a curved shape. It is wound around the tape winding portion 11a with a shorter radius than the side. Therefore, although a strong tensile force acts on both sides in the width direction of the resin tape 2 that is stretched by sliding contact with the tape stretching portion 11 a 31 , no image is applied to the center portion in the width direction of the resin tape 2 . Because of the tensile force on both sides, even a tape with little extensibility can be wound and fixed to the utility pole 3 or the like without increasing the size of the tape fastener 1 as a whole and without requiring excessive force. object.

Next, the rotating lever 11 is further rotated from the temporarily fixed state shown in FIGS. 14A and 14B , while the tensile force of the resin tape 2 is increased, as shown in FIGS. When the stopper parts 11c and 11c are engaged with the engaged hole 12b1 of the base part 12 , the rotation lever 11 is locked (closed) to the base part 12 .

As shown in FIGS. 15A and 15B , in the locked (closed) state, since the amount of the resin tape 2 wound to the tape winding portion 11 a reaches the maximum, and the tape stretching portion 11 a 31 that stretches the resin tape 2 is removed from the base portion The rear end side of 12 is moved to the front end side, so that the tensile force applied to the resin tape 2 is maximized, and the resin tape 2 can be securely fastened to the utility pole 3 .

<The effect of the belt fastener 1 of the embodiment>

As described above, in the belt fastener 1 according to the present embodiment, since the locked portions 12b and 12b of the base portion 12 are provided with the locked holes 12b1 and 12b1, respectively, the locked holes 12b1 and 12b1 The locking slopes 12b11 and 12b11 are provided with the top surface gradually inclined upward from the inside to the outside. On the other hand, the locking slopes 11c1 and 11c1 are respectively provided on the locking portions 11c and 11c at the tip of the rotating lever 11. When the rotating lever 11 is rotated and closed to the base portion 12 , the locking inclined portions 11c1 and 11c1 are gradually inclined upward from the inner side to the outer side so as to be engaged with the locked portions 12b and 12b of the base portion 12 . Because of the locking slope portions 12b11 and 12b11, the closed turning lever 11 can be prevented from being detached from the base portion 12, and the resin tape 2 can be securely fastened.

In addition, in the belt fastener 1 of the present embodiment, since the top end portion of the rotating rod 11 is provided with the raised portion 11g whose upper surface is raised more at the center than both sides, the raised portion 11g is not provided in contrast to the case where the raised portion 11g is not provided. Since the distal end portion of the pivot lever 11 can be pressed more strongly than the locking portions 11c and 11c on the distal end portion side of the pivot lever 11 to be engaged with the locked holes 12b1 and 12b1 on the distal end side of the base portion 12, The resin tape 2 can be tightened more reliably, and the operability can be improved.

In addition, in the belt fastener 1 of the present embodiment, regarding the rotation shaft portions 11b1 and 11b2 of the rotation lever 11, the dimensions of the outer diameters r1 and r2 of the left and right rotation shaft portions 11b1 and 11b2 are changed, and on the other hand, The left and right rotation shaft support parts 12a1 and 12a2 of the base part 12 respectively have bearing holes 12a11 and 12a21 for supporting the left and right rotation shaft parts 11b1 and 11b2 of the rotation lever 11, and the left and right bearing holes 12a11 and 12a21 have bearings for rotation Since the inner diameters correspond to the dimensions of the outer diameters r1 and r2 of the left and right pivot shaft portions 11b1 and 11b2 of the lever 11, it is possible to reliably prevent the pivot lever 11 from being attached to the base portion 12 by mistakenly facing the front and back of the pivot lever 11. .

In addition, in the belt fastener 1 of the embodiment, the state switching convex portion 12f is provided at the rear end portion of the base portion 12, and the state is switched when the rotating lever 11 attached to the base portion 12 is rotated. When the convex portion 12f is engaged with the engaging end portion 11a34 of the second tape winding portion 11a3, and the state switching convex portion 12f is located on the tape stretching portion 11a31 side, the rotation lever 11 is held large relative to the base portion 12. On the other hand, when the turning lever 11 is rotated in the closed direction from the wide open state and the engaging end portion 11a34 passes over the state switching convex portion 12f, the first tape winding portion 11a2 is in the wide open state. The resin tape 2 is temporarily fixed by sandwiching the resin tape 2 between the tape outlet side end portion 11 a 22 and the tape bending and gripping convex portion 12 e of the base portion 12 .

Therefore, compared with the prior art which does not have the function of temporarily fixing the resin tape 2, in the temporary fixing state of the resin tape 2, the height of the resin tape 2 can be changed by releasing the hand from the rotating lever 11, and even the height of the resin tape 2 can be opened again. The operability can also be improved by turning the lever 11 and tightening the resin tape 2 again.

In addition, as shown in FIGS. 15A and 15B , the locking portions 11 c and 11 c on the distal end side of the turning lever 11 by rotating the turning lever 11 on which the resin tape 2 is wound are respectively locked to the locked portions of the base portion 12 . In the locked state of the parts 12b and 12b, the resin tape 2 is sandwiched between the state switching convex part 12f and the tape outlet side end 11a22 of the tape insertion hole 11a1 in the tape winding part 11a, so that it is possible to more reliably Fasten the resin tape 2.

In addition, as shown in FIGS. 13A and 13B , in the tape fastener 1 of the embodiment, the tape outlet side end portion 11a22 of the first tape winding portion 11a2 in which the uneven strip portion 11a21 is formed is compared with the first tape winding. The tape inlet side end portion 11a23 of the winding portion 11a2, the tape outlet side end portion 11a32 and the tape inlet side end portion 11a33 of the second tape winding portion 11a3 are formed at smaller acute angles.

Therefore, even if only one end of the resin tape 2 is inserted into the tape insertion hole 11a1 of the tape winding portion 11a and rotated, the resin tape 2 is bent at the tape outlet side end portion 11a22 of the first tape winding portion 11a2 Since the tape is wound around the tape winding portion 11a at a large acute angle, the resin tape 2 can be securely fastened by simply inserting the resin tape 2 into the tape insertion hole 11a1 and turning the turning lever 11 in the direction of locking the turning lever 11. The belt 2 can improve operability.

In addition, in the tape fastener 1 of the embodiment, the base portion 12 is provided with the concave portion 12d for winding portion turning which allows the tape winding portion to which the resin tape 2 is wound. 11a is rotated to form a depression, and a gap is formed between the winding portion turning recess 12d and the tape winding portion 11a. A central opening 11e is formed between the tape winding portions 11a on the rear end side, and a main bridge portion 11f1 connected to the left and right side surfaces is formed in the central opening 11e. On the tape outlet side of the concave portion 12d for winding portion rotation, there is provided a tape bending and gripping convex portion 12e, which bridges the main bridge portion 11f1 and the tape winding portion 11a in the central opening portion 11e. The first central opening portion 11e1 therebetween protrudes, and the resin tape 2 is bent and sandwiched between the tape bending and clamping convex portion 12e, the main bridge portion 11f1, and the tape winding portion 11a.

Therefore, when the turning lever 11 is closed to be in the locked (closed) state, the resin tape 2 is bent and tightened between the tape bending and clamping projections 12e, the main bridge portion 11f1, and the tape winding portion 11a. Since the resin tape 2 can be clamped more reliably, the workability can be further improved.

In addition, in the tape fastener 1 of the embodiment, the base-side stepped portion 12e1 is provided on the tape inlet side surface of the tape bending and gripping convex portion 12e, and on the other hand, the turning lever 11 is closed to be locked. In the (closed) state, a rod-side stepped portion 11a24 is formed in the first tape winding portion 11a2 facing the base-side stepped portion 12e1 of the tape-folding and gripping convex portion 12e.

Therefore, when the turning lever 11 is closed to be in the locked (closed) state, there is a gap between the base-side stepped portion 12e1 of the tape bending and gripping convex portion 12e and the rod-side stepped portion 11a24 of the first tape winding portion 11a2 Also, since the resin tape 2 is further bent and clamped, the resin tape 2 can be tightened more reliably, and the operability can be further improved from this point.

In addition, in the description of the said embodiment, it demonstrated that the tongue piece part 11d is provided in the front-end|tip part side of the rotating lever 11, However, This invention is not limited to this, Of course, the tongue piece part 11d may be abbreviate|omitted.

Claims (9)

1. A tape fastener having a rotating lever that rotates while stretching a resin tape having a plurality of core wires built therein in a resin member, and a base portion that rotates and locks the rotating lever, the tape fastener fastening and attaching the resin tape to an object,

the rotating lever is provided with a locking portion on a distal end portion side of the rotating lever, a tape winding portion and a rotating shaft portion on a proximal end portion side of the rotating lever,

the belt winding part is provided with:

a belt insertion hole through which one end of the resin belt passes from the tip end portion side of the rotating lever,

a belt stretching portion which is located closer to a tip end portion side of the rotating lever than a rotation center of the rotating shaft portion, and which applies a stretching force to the resin belt by winding the resin belt and stretching one end side of the resin belt when the rotating lever is rotated from the open state to the locked state,

the base part is provided with:

a belt locking part for locking the other end of the resin belt,

a rotating shaft supporting portion that rotatably supports the rotating shaft portion of the rotating lever,

a locked portion for locking the locking portion of the rotating lever,

a state switching projection portion is provided at a rear end portion of the base portion, and the state switching projection portion is engaged with an engaging end portion of the tape stretching portion of the tape winding portion, the engaging end portion being separated from the tape insertion hole, when the rotating lever attached to the base portion is rotated,

when the state switching projecting portion is located on the belt stretching portion side, a wide open state in which the rotating lever is widely opened with respect to the base portion is maintained, and when the engaging end portion passes over the state switching projecting portion by rotating in a direction in which the rotating lever is closed from the wide open state, the resin belt is temporarily fixed by sandwiching the resin belt between the end portion on the belt outlet side of the belt insertion hole in the belt winding portion and the belt bending sandwiching projecting portion of the base portion.

2. The strap fastener of claim 1 wherein,

when the rotating lever around which the resin tape is wound is rotated to be in a locked state in which the locking portion is locked to the locked portion of the base portion, the resin tape is sandwiched between the state switching projection and an end portion of the tape winding portion on the tape outlet side of the tape insertion hole, that is, an end portion on the opposite side from the side on which the tape stretching portion is formed.

3. The strap fastener of claim 1 wherein,

the base portion is further provided with a winding portion rotating recessed portion which is formed as a recess so as to allow the tape winding portion around which the resin tape is wound to rotate, and a gap is formed between the winding portion rotating recessed portion and the tape winding portion,

in the rotating lever, a central opening portion is further formed between a tip end portion side of the rotating lever and the belt winding portion, and a main bridge portion connected to both right and left side surfaces is formed in the central opening portion,

the base portion has a concave portion for turning the winding portion, the concave portion for turning the winding portion has a convex portion for bending the tape, the convex portion for bending the tape protrudes toward a first central opening portion between the main bridging portion and the winding portion in the central opening portion, and the resin tape is bent and clamped between the convex portion for bending the tape and the main bridging portion and the winding portion.

4. The strap fastener of claim 2 wherein,

the base portion is further provided with a winding portion rotating recessed portion which is formed as a recess so as to allow the tape winding portion around which the resin tape is wound to rotate, and a gap is formed between the winding portion rotating recessed portion and the tape winding portion,

in the rotating lever, a central opening portion is further formed between a tip end portion side of the rotating lever and the belt winding portion, and a main bridge portion connected to both right and left side surfaces is formed in the central opening portion,

the base portion has a concave portion for turning the winding portion, the concave portion for turning the winding portion has a convex portion for bending the tape, the convex portion for bending the tape protrudes toward a first central opening portion between the main bridging portion and the winding portion in the central opening portion, and the resin tape is bent and clamped between the convex portion for bending the tape and the main bridging portion and the winding portion.

5. The strip fastener of any one of claims 3 to 4,

a base side step portion is formed on the winding portion rotating concave portion side of the band bending holding convex portion,

a lever side step portion formed in the band winding portion facing the base side step portion of the band bending and pinching convex portion when the rotation lever is rotated to bring the locking portion into a locked state in which the locking portion is locked to the locked portion of the base portion,

when the locked state is achieved, the resin belt is bent and sandwiched between the base-side step portion and the rod-side step portion.

6. The strap fastener of any one of claims 1 to 4,

the locked part of the base part is provided with a locked hole which is provided with a locked inclined surface part with a top surface gradually inclining upwards from the inner side to the outer side,

the locking portion of the rotating lever is provided with a locking slant portion which is inclined upward from the inside to the outside when the rotating lever is closed to the base portion, and is locked to the locked slant portion of the locked hole.

7. The strap fastener of any one of claims 1 to 4,

a raised part with a center raised more than two sides is arranged at the top end part of the rotating rod.

8. The strap fastener of any one of claims 1 to 4,

in the rotating shaft portion of the rotating shaft, the size of the outer diameter of the left and right rotating shaft portions is changed,

the left and right rotation axis support portions of the base portion have bearing holes respectively supporting the left and right rotation axis portions of the rotation axis, and the left and right bearing holes have inner diameters corresponding to the sizes of the outer diameters of the left and right rotation axis portions of the rotation axis.

9. The strap fastener of any one of claims 1 to 4,

the end portion of the tape winding portion on the tape outlet side of the tape insertion hole, that is, the end portion on the opposite side to the side on which the tape stretching portion is formed, is formed at an acute angle smaller than the end portion on the tape outlet side of the tape insertion hole, that is, the end portion on the side on which the tape stretching portion is formed, and the upper and lower end portions of the tape insertion hole on the tape inlet side.

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