KR101743428B1

KR101743428B1 - Automatic retraction and damping device

Info

Publication number: KR101743428B1
Application number: KR1020127011569A
Authority: KR
Inventors: 안드레아스 몬텍치오
Original assignee: 헤티히-하인츠 게엠베하 운트 콤파니 카게
Priority date: 2009-10-14
Filing date: 2010-10-07
Publication date: 2017-06-05
Also published as: JP2013507550A; CN102549227B; RU2012119080A; BR112012008547A2; RU2526775C2; JP5845512B2; PL2488718T3; EP2488718B1; EP2488718A1; DE202009013347U1; WO2011045226A1; KR20120091182A; CN102549227A

Abstract

The present invention relates to an automatic retraction and damping device (5) of a mobile furniture part (2), comprising a driver (30) which can be coupled to a mobile furniture part (2) And a spring element (17) for accelerating movement of the driver (30) from a first position to a second position, wherein the damper (18, 35), the driver 30 and the spring element 17 are coupled to each other by a four-element linkage 13 which causes a linear guide of the driver 30.

Description

{AUTOMATIC RETRACTION AND DAMPING DEVICE}

The present invention relates to an automatic retraction and damping device for mobile furniture parts according to the preamble of claim 1.

Automatic retraction and damping of mobile furniture components is known from DE 20 2004 018 629 U1, which discloses that the furniture element is approached to its closed position and the effective direction of the automatic retraction fitting There is disclosed a technique for movably mounting a shock absorber and / or an automatic retraction fitting piece so that the angle between the effective direction of the device increases. As the lever ratios of the individual elements are varied with respect to each other, the buffering force of the buffer can be adjusted as needed. In this case, in order to allow the displacement of the furniture part arranged as the sliding door to be displaced in parallel to the plane of the other sliding door, the rearward movement direction is firstly shifted from the same plane with the additional sliding door Lt; / RTI > operate in a manner that needs to be guided across.

Conventional automatic retraction and shock absorbers incorporating the state of the art require so-called "walking-stick curves" to maintain the system. This additional element may be omitted in an apparatus according to the invention for achieving a state where there is no restoring torque.

It is an object of the present invention to provide an automatic retraction and damping device for removable furniture components, wherein the automatic retraction and buffering of the movement of the mobile furniture part is enabled in the direction of movement of said furniture part.

This object is achieved by an automatic retraction and damping device of the mobile furniture part of the embodiment of claim 1. [

According to the present invention, a spring element which accelerates the movement of the driver from the first position to the second position, and a driver which can be engaged with the mobile furniture part, a damper which brakes the movement of the driver in at least one direction, Are coupled together by a four-bar linkage which causes linear guidance of the driver. By using the 4-bar linkage, the opening of the mobile furniture part, such as a sliding door or a flap fit piece, becomes considerably easier for the user. As a result of the kinematic lever ratio and articulation of the spring elements, the spring which is responsible for automatic retraction is only slightly tensioned, which results in a significant reduction in the spring tension required for the opening process. Also, system friction is reduced by the use of a swivel joint instead of a linear guide.

By suitably selecting the fastening points of the spring elements in the 4-bar linkage, the link mechanism can be moved to a dead point position (dead) at which the effective line of the spring element passes through the fastening point of the link mechanism. center position. This results in a state in which there is no restoring torque that can be used for locking the system, since the 4-bar linkage does not leave the reached position without external excitation.

A further advantage of the solution according to the invention is the structurally simple construction of the automatic retracting and damping device.

Advantageous embodiments of the invention are the subject matter of the dependent claims.

According to one embodiment, the damper is arranged as a linear damper. As a result of the proper selection of the anchoring points of the spring element and the damper, on the one hand the direction of action of the spring element acts opposite to the direction of movement of the damper, on the other hand the load displacement curve can be adjusted as required .

In an alternative embodiment, the damper is arranged as a rotatable damper, in particular as an eddy-current brake. As a result, the braking effect of the damper is substantially unaffected by the temperature as compared with the fluid damper. Further, the vortex brake particularly advantageous when the available space is small can be arranged very compactly.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic perspective view of a furniture body in which mobile furniture parts are disposed in a closed state.
Figure 2 is a schematic perspective view of the furniture of Figure 1 in a partially open state;
Fig. 3 is a schematic detailed perspective view of the furniture of Fig. 2 for an embodiment of the automatic retraction and damping device according to the invention attached to said furniture; Fig.
4 is a schematic detailed perspective view of the installation environment of the automatic retraction and shock absorber.
5 is a plan view of an embodiment of the automatic retracting and damping device and a closed position of the mobile furniture part engaging the automatic retraction and dampening device.
Fig. 6 corresponds to Fig. 5, with the mobile furniture part in a partially open position; Fig.
Figures 7 and 8 are plan views corresponding to Figures 5 and 6 of an embodiment of an automatic retraction and damping device with a damper arranged as a rotatable damper.
9 is a schematic exploded perspective view of an automatic retraction and damping device having a damper arranged as a linear damper.
10 is a schematic exploded perspective view of an embodiment of an automatic retraction and damping device with a damper arranged as a rotational damper.
11 is a diagram showing a typical load displacement curve of a linearly guided automatic retraction and damping device as known in the state of the art.
12 is a diagram showing a load displacement curve of an embodiment of the automatic retraction and damping device according to the present invention.

The present invention will be described in more detail below with reference to embodiments shown in the accompanying drawings.

Figures 1 and 2 show a furniture body 1 with a mobile furniture part 2 arranged as a sliding door in this case. The movable furniture part 2 is provided with at least one fitting piece 12 (as shown in Fig. 5) on the side facing the furniture body 1, on which the ceiling panel 3 A roller 11 which is displaceably held in the tracks 9 and 10 of the guide rail 4 mounted on the guide rail 4 is mounted. The mobile furniture part 2 is in the closed position in figure 1 and is in the position shown in figure 2 for the automatic retracting (not shown) which is preferably fixed to the ceiling panel 3 of the furniture body 1, And the shock absorber (5).

4, the automatic retraction and dampening device 5 comprises a housing 8 from which the driver 30 can project in the direction towards the mobile furniture part 2, The driver is adapted to receive an actuating element (6) fixed to the movable furniture part (2) during movement of the movable furniture part (2) from a partially open position to a closed position, And is moved to the closed position. The actuating body 6 is preferably arranged as a cylindrical rod fastened to the mounting platform 7 and the mounting platform 7 is mounted on a part of the mounting piece 12 of the movable furniture part 2.

As shown in Fig. 5, the driver 30 has an opening 31 which is generally U-shaped towards the movable furniture part 2, in which the actuating body 6 can be received, The driver 30 keeps the operating body 6 firmly in the moving direction of the mobile furniture part 2. [ At the one end of the U-shaped opening 31 of the driver 30, the actuating body 6 is inserted into the U-shaped opening 31 for the purpose of more easily accommodating the actuating body 6 There is formed a tongue 32 which is to be collided with when it is moved.

As further shown in FIG. 5, the driver 30 is coupled to a four-bar linkage 13 which is housed in the housing 8 of the automatic retraction and damping device 5. The four-bar linkage device 13 includes two link mechanisms 14 and 15, one end of which can be rotatably fixed to the furniture body 1, A connecting rod 16 rotatably fixed to the other end of the housing 8, and a housing 8. The driver (30) is coupled to the free end of the connecting rod (16).

The four-bar linkage (13) is provided with a spring element (17) for accelerating the movement of the driver (30) in one direction from a first position to a second position, A damper 18 for braking the movement of the driver 30 is further coupled. Wherein the linking mechanisms 14 and 15 are fixed points 19 and 20 fixed to the furniture body 1 and connection points 23 and 24 of the linking mechanism 14 and 15 with the connecting rod 16 Is disposed in such a manner that the free end of the connecting rod 16 to which the driver 30 is coupled directs the driver 30 linearly along the straight portion of the curved guide 28. [

Figure 5 shows the 4-bar linkage 13 when the position of the driver 30 is in the closed position and Figure 6 shows the 4-bar linkage 13 when the position of the driver 30 is in the open position. 13 in which the driver 30 is retracted into a curved portion 29 of the curved guide 28 so that the open end of the driver's U- Is twisted obliquely toward the opening direction of the mobile furniture part (2).

5 and 6, the spring element 17, which is rotatably fastened to the furniture body at one end thereof at the fixing point 21, is provided with a spring element 17 for tilting and relaxing the spring element 17, Bar linkage 13 passing through the curve in the case of the movement of the four-bar linkage 13, at a first interlocking point 26. The four- Thereby, during the opening process of the mobile furniture part 2, the spring element 17, which is preferably arranged as a tension spring, must be covered when the driver 30 is moved from the curved guide 28 to the open position Lt; RTI ID = 0.0 > distance. &Lt; / RTI > The first interlocking point 26 is preferably formed on the connecting rod 16.

By appropriately selecting the anchoring points of the spring element 17 in the 4-bar linkage 13, the link mechanism 15 is arranged such that the effective line of the spring element 17 is connected to the link mechanism 15 And reaches the dead point position passing through the fixing point 20. [ This results in a state in which there is no restoring torque that can be used for locking the system because the 4-bar linkage 13 does not leave the reached position without being excited from the outside.

5 and 6, the damper 18 is arranged as a linear damper. The damper 18 whose one end is rotatably fastened to the furniture body 1 at the fixing point 22 is coupled to the interlocking point 25 on the connecting rod 16 here, Or may be disposed on the link mechanism 14 close to the anchor point 22. The damper 18 arranged as a linear damper is preferably provided with a housing in which a buffering journal 27 rotatably fixed at the interlocking point 25 is projected from the connecting rod 16 As known in the state of the art.

According to a further embodiment of the automatic retraction and damping device 5, the damper 35 is arranged as a rotatable damper, preferably a vortex brake, as shown in Figs. In the case of the automatic retracting and damping device 5 arranged in this manner, the buffering force of the automatic retracting and damping device 5 or the braking force of the vortex brake 35 can be controlled by a simple method Lt; / RTI >

In order to engage the damper 35, a gear rack 33 is fastened to the link mechanism 14 of the 4-bar linkage device 13, and the tooth rack is formed in an arc shape, (34) engaging with the toothed ring (36) of the toothed wheel (35). The toothed rack 33 is rigidly connected to the link mechanism 14 in this embodiment. It is also possible to provide an integral structure of the link mechanism 14 and the tooth rack 33. [

Figures 9 and 10 show an exploded view of the embodiments of the automatic retraction and damping device 5, Figure 9 showing an embodiment with a damper 18 arranged as a linear damper, And a damper 35 disposed as a typical damper.

Fig. 11 shows a load displacement curve of the automatic retraction and shock absorber according to the state of the art, Fig. 12 shows a load displacement curve of the automatic retraction and shock absorber according to the present invention, Fig. FIG. It is clearly shown that it is necessary to apply an increasingly large force to the driver's increased cover distance to resist the elastic force of the spring element 17 during the opening process of the mobile furniture part. In the automatic retraction and damping device according to the state of the art, the spring element 17 is deflected by a large distance moved. In the automatic retraction and damping device according to the invention, during the opening process of the mobile furniture part (2), the spring is interlocked as a result of the movement caused by the 4-bar linkage, It is necessary to initially apply roughly the same force that decreases as the distance increases. As a result of interlocking the spring element 17 with the 4-bar linkage 13, the effective direction of the spring element 17 with respect to the link mechanism 15 is such that the spring element 17 is at the maximum tension The restoring torque acting on the link mechanism 15 in the closing direction is changed in such a manner as to be minimized.

The application of the automatic retraction and damping device according to the present invention is not limited to the use of movable furniture parts arranged as sliding doors but can also be used in examples such as drawer elements and the like. In the case of such furniture provided with such an automatic retraction and damping device, the user can move the movable furniture part 2 of the furniture by applying a small amount of force.

Furniture unit 1
Furniture parts 2
Ceiling panel 3
Guide rail 4
Automatic retraction and dampening device 5
Actuator 6
Mounting platform 7
Housing 8
Track 9
Track 10
Roller 11
Fitting 12
4-bar interlocking device 13
Link mechanism 14
Link mechanism 15
Connecting rod 16
Spring element 17
Damper 18
Fixed point 19
Fixed point 20
Fixed point 21
Fixed point 22
Junction point 23
Junction point 24
Interlocking point 25
Interlocking point 26
The buffer journal 27
Curved guides 28
Curved portion 29
Driver 30
U-shaped opening 31
Spindle 32
Toothed rack 33
Tooth 34
Damper 35
Toothed ring 36
Force F1, F2

Claims

A driver 30 which can be combined with the mobile furniture part 2,
Dampers (18, 35) for braking the movement of the driver (30) in at least one direction, and
The automatic retraction and damping device (5) of a mobile furniture part (2) comprising a spring element (17) which accelerates the movement of the driver (30) from a first position to a second position,
The dampers 18 and 35, the driver 30 and the spring element 17 are coupled to each other by a four-bar linkage 13, which causes linear guidance of the driver 30. &Lt; / RTI >
Automatic retraction and shock absorbers (5).

The method according to claim 1,
The four-bar linkage device 13 comprises two link mechanisms 14 and 15 which can be rotatably fixed to the furniture body 1 by means of one end thereof, and the link mechanisms 14, And a connecting rod (16) rotatably fixed to the other end of each of the first and second ends (15, 15)
Automatic retraction and shock absorbers (5).

3. The method of claim 2,
Characterized in that the spring element (17) is engaged at the first interlocking point (26) with the 4-bar linkage (13) passing through the curve during movement to tense and relax the spring element (17)
Automatic retraction and shock absorbers (5).

The method of claim 3,
Characterized in that said first interlocking point (26) is arranged on said connecting rod (16)
Automatic retraction and shock absorbers (5).

3. The method of claim 2,
Characterized in that the damper (18) is arranged as a linear damper.
Automatic retraction and shock absorbers (5).

6. The method of claim 5,
Characterized in that the damper (18) is coupled to the 4-bar linkage (13) in such a way that the direction of movement of the damper (18)
Automatic retraction and shock absorbers (5).

The method according to claim 6,
Characterized in that the damper (18) is coupled to a second interlocking point (25) provided on the connecting rod (16)
Automatic retraction and shock absorbers (5).

The method according to claim 6,
Characterized in that the damper (18) is coupled to a second interlocking point (25) provided on the link mechanism (14)
Automatic retraction and shock absorbers (5).

3. The method of claim 2,
Characterized in that the damper (35) is arranged as a rotary damper.
Automatic retraction and shock absorbers (5).

10. The method of claim 9,
Characterized in that the damper (35) is arranged as an eddy-current brake.
Automatic retraction and shock absorbers (5).

11. The method according to claim 9 or 10,
Characterized in that the damper (35) is coupled to the 4-bar linkage (13) by means of a toothed rack (33) fixed on the 4-bar linkage (13)
Automatic retraction and shock absorbers (5).

12. The method of claim 11,
Characterized in that the toothed rack (33) is fastened to one of the link mechanisms (14, 15)
Automatic retraction and shock absorbers (5).

The method according to claim 1,
Characterized in that the driver (30) is movable in a curved guide (28) from a starting position in which the furniture part (2) is in the closed position to an ending position in which the furniture part (2) doing,
Automatic retraction and shock absorbers (5).

14. The method of claim 13,
Characterized in that the curved guide (28) comprises at one end a curved portion (29) capable of pivoting the driver (30) inwardly.
Automatic retraction and shock absorbers (5).

The method according to claim 1,
Characterized in that said furniture part (2) is arranged as a movable cabinet wall or as a drawer element.
Automatic retraction and shock absorbers (5).

1. A piece of furniture comprising a furniture body (1) and a furniture part (2) movable relative to said furniture body (1)
An automatic retraction and dampening device (5) as claimed in any one of the preceding claims,
furniture.