KR20240063703A - A Damping Appararus For Moving Furniture Parts - Google Patents

Abstract

The present invention is applied to shock absorbers (damping apparatus) for movable furniture accessories, such as doors, flaps, and drawers.
It's about. The shock absorption of these compact structures avoids springback movements of furniture accessories as much as possible.
The device consists of at least two shock absorbers, each of which is a longitudinally displaceable piston.
By providing cylinders (20, 30) with (22, 32), shock absorption of different strengths is achieved.

Description

Shock Absorber for Moving Furniture Parts {A Damping Appararus For Moving Furniture Parts}

[0002] The present invention provides a shock absorbing device for movable furniture accessories, such as doors, flaps or drawers.

s).

[0003] Such shock absorbers are known in various embodiments. DE 44 09 716 A1 with piston and cylinder

It is composed of a seal that moves when the piston enters the cylinder, greatly preventing the discharge of air.

An air damper (air damper) that allows the piston to be braked while entering the cylinder by the compressed air inside the cylinder.

Damper) is disclosed. Similarly, DE 37 29 597 A1 also discloses a shock absorbing device consisting of a cylinder and a piston longitudinally displaceably housed within the cylinder. It has a diameter that changes in the longitudinal direction.

A spigot is stored in the cylinder guided by the piston, which is designed as a hollow piston.

When the piston is inserted, the compressed air in the cylinder is released through the annular gap between the stopper and the piston's bore.

It expands depending on the position of the piston.

[0004] A shock absorber of the type previously described is further known from DE 201 20 112.7. Seal close to sealed end

There is a bore in the jacket wall of the leaner, and thus a very good shock absorption effect can be achieved.

An air damper is disclosed.

[0005] When a furniture accessory is sealed with great force or at a high speed, the kinetic energy of the damper in contact with the furniture accessory is

Since it cannot be completely absorbed immediately, furniture accessories are dragged to the final sealed position by sealing the device.

It bounces back before. JP 0020279886 AA door consisting of an elastic shock absorber and an oil damper

Shock-absorbing elements are known. This elastic shock absorbing part must have the effect of attenuating the shock of the door.

The remaining kinetic energy must be absorbed by the oil damper.

[0006] The object of the present invention is to prevent springback of furniture accessories that can occur in a compact configuration, of the type described previously.

The purpose is to provide a repulsive absorption device.

[0007] The above object is solved by a shock absorbing device having the features of claim 1 of the patent claims. According to the above invention,

The shock absorber has at least two shock absorbing stages (damping stages), each of which can be displaced in the longitudinal direction.

There is a cylinder with one piston, which exerts shock absorption of different strengths. Therefore, the braking effect is

It is divided into two differently designed stages in that it exerts different strengths of braking effect during motion. For example, the first

Two shock absorbers where the shock absorber has a relatively weak spring and the second shock absorber has a normal air damper.

It can be installed so that the braking effect is achieved. In this embodiment, the movement of the furniture fitting is initially

is mainly reduced by the force of the spring, and the subsequent shock absorbing means is only partially used. And then the first shock

The remaining kinetic energy already reduced by the absorption stage is completely absorbed by the second shock absorption stage. With this

Likewise, a gradual braking effect takes place between the two stages, thereby preventing springback of the furniture fittings.

[0008] The shock absorber may be composed of two shock absorbers. Of course, two or more shock absorbers can also be realized.

all. When designed as a shock absorber with a telescopic cylinder, the shock absorber

Miniaturization can be achieved.

[0042] The present embodiments show the second shock absorbing means as an air damper and the first shock absorbing means as a spring-loaded damper.

It was done. In general, other embodiments may be devised herein. For example, air dampers are different from other conventional

It may be formed as a shock absorber.

[0043] As a result, it is possible to achieve a smooth transition of the braking effect of the shock absorber, so the springback of the furniture accessories

can be significantly avoided.

[0001] Figure 1 is a cross-sectional view showing a first embodiment of a shock absorbing device according to the present invention from its starting position.
Figures 2 and 3 are cross-sectional views showing the shock absorbing device of Figure 1 in a partially and fully inserted position.
Figure 4 is a cross-sectional view showing another embodiment of the shock absorbing device according to the present invention from its starting position.
Figures 5 to 9 are diagrams showing individual parts of the shock absorbing device shown in Figures 1 to 4;

[0009] In a preferred aspect of the invention, the shock absorber has a multi-stage, preferably two-stage telescopic cylinder.

The first shock absorbing means is loaded by a spring and has a piston accommodated in a telescope cylinder.

And, the second shock absorbing unit is formed of an air damper. Shock absorption field with multi-stage telescopic cylinders

The design of the teeth is known, for example, from DE 201 20 112.7 and DE 201 17 031.0, mentioned above. this kind

Shock absorbers have the characteristic of having a very short length or installation depth to enable a particularly compact structure.

[0010] So that the braking effect of the first shock absorber is essentially generated by the force of the spring acting on the piston.

An air gap exists between the cylinder and the piston of the first shock absorbing unit.

[0011] In another aspect of the present invention, the cylinder of the first shock absorbing means is rigidly connected to the cylinder, and is oriented in the insertion direction.

It has a peripheral seal accommodated in a groove that is in sealing contact with the wall of the cylinder of the next shock absorbing unit, and

It may be provided to have the piston in contact with the groove wall in an outward direction of movement.

[0012] Compression of air within the cylinder space occurs during the insertion movement, so the desirable braking effect of the air damper is not achieved.

Meanwhile, air is forced outward to allow the piston to move freely and easily outward.

During movement, it can pass between the piston and the cylinder wall.

[0013] Preferably, there is a seed in the groove of the piston that communicates with the inner space of the next shock absorbing cylinder via a passage.

The work is accepted. When the piston moves outward, the air moves outwards as described above.

It flows through the passage so that it can be safely withdrawn.

[0014] Each of the piston of the first shock absorber and the piston of the second shock absorber has an end of the spring of the first shock absorber.

Additional cut-outs for storage may be provided.

[0015] In another aspect of the invention, the cylinder of the first shock absorber is positioned at the starting position with the collar of the second shock absorber cylinder.

(Collar) It can be provided with a ring-shaped flange supported on the front.

[0016] The cylinder of the first shock absorber has an annular flange at which the piston of the first shock absorber is supported at its starting position.

It can be provided.

[0017] In a preferred aspect of the present invention, the second shock absorbing unit designed as the final stage or second stage is formed as an air damper.

and the cylinder has a bore proximate to the sealed end of the jacket wall. The diameter of this bore is larger than that of the cylinder.

It is qualitatively small. A shock absorber with similarly arranged bores is disclosed in DE 201 20 112.7.

Oh, there it is.

[0018] In another aspect of the present invention, the piston of the first shock absorbing unit is a plunger with a magnet arranged at the end.

It can be installed with a (plunger). This way, when the movable furniture accessory is opened, the shock absorber

The effect of being moved back to the working position is that a new shock absorption process can be used.

[0019] It is installed in the final shock absorbing unit, and is supported on the base of the cylinder of the final shock absorbing unit.

A spring that exerts a restoring force against the piston can be further provided. This spring guides the piston of the shock absorber back toward its starting position.

[0020] The piston of the first shock absorbing unit may be provided with a plunger having a buffer portion arranged at an end.

[0021] Particularly preferably, the first shock absorbing means exerts a lower shock absorbing action than the second shock absorbing means.

all. It is possible to provide a second shock absorbing means designed to overcome the starting friction during operation of the first shock absorbing means.

there is. As a result, it is possible to achieve a smooth transition of the braking effect of the shock absorber, so it can be used in furniture accessories.

Springback can be significantly avoided.

[0022] Other details and advantages of the present invention will be described in more detail with reference to the embodiments shown in the drawings below.

Explain.

[0023] From Figure 1, a shock absorbing device 1 according to the invention can be seen. This shock absorber consists of two shock absorbers.

The first end has a cylinder 30 having a piston 32, and the second end has a cylinder having a piston 22.

We have 20 more.

[0024] The piston 32 is guided in a longitudinally displaceable manner within the cylinder 30 of the first shock absorber. piston 32

is provided with a plunger 34 integrated with a magnet 36 arranged at the end.

[0025] The cylinder 30 is provided with a piston 22 of a second shock absorbing means at its end, and the piston 22 is firmly attached to the cylinder 30.

It is connected. The connection can be made, for example, by ultrasonic welding.

[0026] The piston 22 is displaceably guided within the cylinder 20 of the second shock absorber.

[0027] The piston 32 has a cutout 320, and the piston 22 has a cutout that receives the end of the spring 40 of the first shock absorber.

It has (220).

[0028] The piston 32 is supported on the annular collar 302 of the cylinder 30 in the starting position shown in Figure 1. more

As shown in FIG. 1, the cylinder 30 is formed by an annular flange 300 in front of the collar 200 of the cylinder 20.

It is supported at the starting position.

[0029] The piston 32 is positioned inside the cylinder 30 so that an air gap remains between the piston 32 and the inner wall of the cylinder through which air can flow.

guided, in effect, the movement of the piston 32 can only occur against the force of the spring 40, so that this

The shock absorption characteristics of the first shock absorption means are largely determined by the spring 40.

[0030] The piston 22 of the second shock absorber has an annular groove 24 that accommodates the seal 26. This groove (24) is a passage (28)

and 29), it is in communication with the inner space 21 of the cylinder 20 of the second shock absorbing unit.

[0031] The end of the cylinder 20 is rigidly connected to the cylinder 20, for example by ultrasonic welding or other conventional means.

It is sealed by a cap (60). When the piston is compressed within the cylinder, air is discharged in a controlled manner, thereby

The bore 202, which performs the shock absorbing action of the second shock absorbing means, is located at the end of the jacket surface of the cylinder 20.

[0032] The function of the shock absorber shown in Figure 1 is designed as follows. When the plunger (34) is pushed in, the air damper

The spring 40, which has lower resistance to impressing force than the second shock absorber formed by

It is compressed. Accordingly, as shown in Figure 2, the piston 32 has each end surface facing each other in the direction of the piston 22.

It moves until it touches. Since part of the movement of the furniture accessories is absorbed by the compression of the piston 32, the movement

Energy is reduced. This is subsequently absorbed by the second shock absorbing means whose function is designed as follows.

[0033] Starting with the piston shown in Figure 2, now cylinder 30 with piston 22 is inserted into cylinder 20.

Then, the air is compressed in the internal space 21, thereby compressing not only the passages 28 and 29 but also the groove 24.

The force increases so that the seal 26 is pressed against the inner wall surface of the cylinder 20. Accordingly, air substantially fills the bore 202.

It can only be released through. Due to the counter force applied by the air, as shown in Figure 3

As shown, the impact of movement of the furniture accessory is further absorbed until the cylinder 30 is completely accommodated within the cylinder 20.

[0034] The shock absorbing action of the second shock absorbing means is a portion that also acts on the second shock absorbing means during compression of the spring 40.

It is designed to be advantageous enough to overcome starting friction. This is immediately after the state shown in Figure 2.

Since the second shock absorbing means is determined during movement, the progressive effect of the shock absorbing device is achieved and it can be used in any furniture accessories.

It has the advantage of being able to avoid even springback.

[0035] Figure 4 shows another embodiment of the shock absorber according to the present invention. The components shown here are in Figure 1.

corresponds essentially to that shown in . The difference from Figure 1 is that there is a base (Base, 60) and a second front on the opposite side.

A spring 50 is formed to be supported between the piston 22 of the shock absorber. Spring 50 is the base

It is fixed to the neck (62) of (60). Spring 50 has a strong restoring force with respect to piston 22, so deformation occurs.

Unless it is present, it has the effect of being compressed back to the position shown in Figure 4. Therefore, the action of spring 40 is also

The same applies for tone 32.

[0036] In the embodiment shown in Figure 4, the end of the plunger 34 is not coupled to the magnet but is connected to the buffer 38.

It is combined.

[0037] Figures 5 to 9 show individual parts of the above-described shock absorbing device according to the present invention. Figure 5 shows the air

(202) Tightly sealed by ultrasonic welding or other joining techniques to ensure discharge only through

It shows the base 60 of the cylinder 20, which is completely and firmly connected to the cylinder 20.

[0038] Figure 6 is a front view showing the annular flange 300 of the cylinder 30 at the starting position shown in Figures 1 and 4.

It shows the cylinder 20 of the second shock absorber having a collar 200 and a bore 202.

[0039] Figure 7 shows that the passage 28 extends radially and the passage 29 extends axially with respect to the cylinder 20 or piston 22.

The piston 22 with annular grooves and passages 28 and 29 is shown in an extended state. Moreover, in Figure 7

shows a cutout 220 for accommodating one end of the spring 40 with the other end accommodated within the cutout 320 of the piston 32.

[0040] As can be seen from Figure 3, Figure 8 shows a telescoping system accommodated in the cylinder 20 in the inserted state of the shock absorber.

A Coup cylinder (Telescopic Cylinder, 30) is shown. The cylinder 30 is the knife of cylinder 20 in the starting position.

It has a ring-shaped flange (300) in contact with the front face of Ra (200). Furthermore, cylinder 30 starts according to Figures 1 and 4.

It has an annular collar 302 to support the piston 32 in position.

[0041] Finally, Figure 9 shows the piston 32 integrally with the adjacent plunger 34. The cutout portion 320 is a spring

It is intended to accommodate one end of 40, and the cutout portion of the plunger 34 shown on the right side is used for magnets 36 (see Figure 1) or

It is intended to accommodate the buffer portion (38, see Figure 4).

Claims (15)

In the shock absorbing device (1) for mobile furniture accessories, such as doors, flaps or drawers,
The shock absorber (1) has a cylinder (20, 30) and a longitudinally displaceable piston (22, 32) therein, respectively.
In particular, it is equipped with at least two shock absorption stages (damping stages) that exhibit shock absorption of different strengths.
Shock absorbing device for movable furniture accessories. According to paragraph 1,
The shock absorber is a shock absorber for movable furniture accessories, characterized in that the shock absorber consists of two shock absorbers.
tooth. According to paragraph 1,
The shock absorbing device includes a multi-stage, preferably two-stage telescopic cylinder, and the first shock absorbing unit is
It has a piston 32 loaded by a spring 40 and housed in a telescope cylinder 30, and the second impact
Shock absorption field for movable furniture accessories, characterized in that the absorption end is formed with an air damper.
tooth. According to clause 3,
The braking effect of the first shock absorber is essentially caused by the force of the spring 40 acting on the piston 32.
This device is characterized in that an air gap exists between the cylinder 30 and the piston 32 of the first shock absorber.
Shock absorbing device for mechanical furniture accessories. According to clause 3,
The cylinder 30 of the first shock absorbing unit is firmly connected thereto and is connected to the cylinder of the next shock absorbing unit in the insertion direction.
It has a peripheral seal (26) received in a groove (24) in sealing contact with the wall of 20, and moves in an outward direction.
Shock absorbing device for mobile furniture accessories, characterized in that it has a piston 22 in contact with the groove wall. According to clause 5,
The seal 26 communicates with the inner space 21 of the cylinder 20 of the next shock absorber via passages 28 and 29.
A shock absorbing device for movable furniture accessories, characterized in that it is accommodated in the groove (24) of the piston 22. According to clause 3,
Each of the piston 32 of the first shock absorbing unit and the piston 22 of the second shock absorbing unit is connected to the spring 40 of the first shock absorbing unit.
A shock absorbing device for movable furniture accessories, characterized in that it has cutouts (220, 320) into which the ends are received. According to clause 3,
The cylinder 30 of the first shock absorbing unit is characterized in that it has an annular flange 300 supporting the cylinder 30 in front of the collar 200 of the cylinder 20 of the second shock absorbing unit at the starting position. Shock absorption for mobile furniture accessories
Hand device. According to clause 3,
The cylinder 30 of the first shock absorbing unit is an annular collar that supports the piston 32 of the first shock absorbing unit at the starting position.
A shock absorbing device for movable furniture accessories, characterized by having (302). According to paragraph 1,
The final shock absorption means is formed by an air damper, and the cylinder 20 is located near the sealed end of the jacket wall.
It has an adjacent bore (Bore, 202), characterized in that the diameter of this bore is essentially smaller than that of the cylinder 20.
Shock absorber for mobile furniture accessories. According to any one of claims 1 to 10,
The piston 32 of the first shock absorbing unit is characterized in that it has a plunger 34 with a magnet 36 disposed at the distal end.
Shock absorbing device for mechanical furniture accessories. According to any one of claims 1 to 10,
The spring 50 is provided in the final shock absorbing unit supported on the base 60 of the cylinder 20 of the final shock absorbing unit,
A shock for movable furniture accessories, characterized in that it exerts a restoring force against the piston 22 of the shock absorber.
Absorption device. According to clause 3,
The piston 32 of the first shock absorbing unit is characterized in that it has a plunger 34 at the end of which a shock absorbing portion 38 is disposed.
is a shock absorbing device for movable furniture accessories. According to clause 3,
Mobile furniture, characterized in that the first shock absorption means exhibits a lower shock absorption effect than the second shock absorption means.
Shock absorber for accessories. According to clause 3,
The second shock absorbing means is characterized in that the starting friction is overcome during operation of the first shock absorbing means.
Shock absorbing device for movable furniture accessories.