TWI481363B - Retraction device for drawers - Google Patents

Description

Retracting device for drawer

The invention relates to a retracting device for pushing a drawer or a sliding rail for pushing a drawer pull-out guide to enter a closed end position relative to a furniture body, having a casing having a casing Aligning line, the function of which is to install the retracting device horizontally on a furniture body, during which a spring-action lifting block is installed in the casing or on the casing, and the lifting device is at least separable The segment moves along a linear walking path, and the lifting block exerts a force on the drawer or exerts a force on the sliding rail of the drawer pulling guide. Meanwhile, the lifting block and the drawer or the sliding rail of the drawer are pulled out to be loose. The way it is connected.

Furthermore, the present invention relates to a piece of furniture having at least one drawer that can be pulled into a closed end position via a retracting device, as will be described further below in this specification.

A retracting device for retracting a drawer to a closed end position has long been known, for example, from the applicant's European Patent No. EP 0 391 221 B1. In the pull-out guide of the drawer, if there is no retracting device originally, there is often a desire to add an additional closing device to the drawer, wherein the retracting movement can be particularly cushioned. There is a so-called rolling guide that uses gravity to create a closing action. The embodiment is such that via the body slide rail, the body slide rail has a rearwardly inclined inclined section at its rear end portion. When the drawer is closed, the drawer automatically enters the closed end position via the introduced inclined section when the closing motion is nearing termination. However, when the drawer needs to be pulled back to a closed position via an additional retracting device, the rear introduced inclined section may cause an undesired release or jam between the spring-acting poppet and a coupling element. The coupling element is releasably coupled to the poppet. In order to avoid this undesired release or jamming, in practice, the housing of the retracting device to be additionally installed has a slight inclined section which is mounted on the furniture body, that is, the linear walking path of the lifting block is The end portion of the inner portion of the body is deeper than the end portion of the body of the linear travel path of the lifting block, and the inclined section of the drawer pull-out guide is compensated. Such tilting assembly of the retraction device on the furniture body is relatively expensive to perform and additionally requires manual assembly by the assembly worker.

It is an object of the present invention to simplify the assembly of such a retracting device on a piece of furniture, the retracting device being particularly useful for a drawer pull-out guide having a lead-in section.

This object of the invention is achieved by the features of the first item of the patent application. The remaining advantageous designs of the present invention are described in the scope of the accompanying patents.

According to the invention, the linear travel path of the poppet extends obliquely to the alignment of the casing.

The alignment of the casing may be formed by one of the side edges of the casing, which in the assembled state extends substantially horizontally on a piece of furniture. On a substantially right-angled casing, the linear travel path of the poppet can be tilted to one of the longitudinal axes of the casing.

In other words, the casing or its alignment line is assembled on the furniture body in a horizontally aligned manner, wherein a Lochraster can be used in particular for assembly. By means of such an orifice plate mounted on the furniture body, the assembler can select different predetermined fixed positions, whereby the casing can be fixed to the furniture body in a horizontal alignment without any problem. The walking path of the poppet extends obliquely with respect to the alignment line so that the lead-in section of the drawer pull-out guide can be compensated.

In one embodiment of the invention, the poppet is movably mounted between the compressed position of the spring and the end position of a spring where the spring is relaxed, and the retracting device is assembled on the furniture. Next, the terminal position is lowered relative to the parking position, and the alignment of the casing extends horizontally.

In a preferred design of the present invention, the straight walking path of the lifting block is relative to the casing The angle of inclination of the alignment line is between 2 and 8 degrees, preferably between 2 and 4 degrees.

In addition, it can be designed to provide a damping device for damping the movement of the lifting block. The use of a rotating and/or linear damper with a piston that slips in the cylinder has proven to be very effective here. In accordance with an embodiment of the present invention, the cushioning device can have a - preferably hydraulic - cylinder-piston unit.

The furniture of the present invention is unique in that it is illustrated by the retracting device described. In the meantime, it may be arranged to assemble a drawer pull-out guide on the furniture body, the drawer pull-out guide has a body slide rail to be fixed on the furniture body, and at least one slideable manner relative to the body slide rail The installed drawer slide rail, wherein the body slide rail has a lead-in inclined section in the rear end section for automatically retracting the drawer into the closed end position, and the linear travel path of the lifting block of the retracting device is substantially parallel to the body The slide rail is introduced into the inclined section.

Figure 1a shows a perspective view of a piece of furniture 1 having a furniture body 2 in which the drawer 3 is mounted for movement relative to the furniture body 2 via a drawer pull-out guide 4. The drawer pull-out guide 4 has a body slide rail 5 that can be fixed to the furniture body 2, and at least one drawer slide rail 6 which is also a side wall of the drawer 3. The body rail 5 can have a C-shaped cross section, and the running roller 7 can be mounted on the drawer rail 6 in a fixed position along the C-shaped profile of the body rail 5.

Figure 1b shows a view of the furniture 1 of Figure 1a without the drawer 3. For each of the drawers 3, a body rail 5 is fixed to each side of the furniture body 2. The body rail 5 has a stationary running roller 8 in the front end region on which the drawer slide 6 can travel. In order to retract the drawer 3 into the fully closed end position, a retraction device 9 is attached to the furniture body 2, which is described in more detail in the following figures. When the closing motion approaches the end, the retracting device 9 captures the drawer 3 via a spring action, and then the drawer 3 is springed by one of the retracting devices 9 into the fully closed position.

Figure 2 shows the body rail 5 for attachment to the furniture body 2 with a running roller 8 in the front end region. The body slide rail 5 has a lead-in inclined section 10 which extends obliquely downward in the depth direction of the furniture 1 in the rear end section, and the drawer slide rail 6 (and the drawer 3) is retracted to the fully closed position by the gravity of the introduction inclined section 10. . In order to additionally support the drawer 3 in the closed end position, a separate retracting device 9 is provided, which has a lifting block 11 which is held by the spring and is captured and fixed on the drawer 3 or fixed to the drawer slide 6 The upper coupling element 14 is such that the coupling element 14 (and the drawer 3) coupled to the poppet 11 is retracted into the furniture body 2 via a spring force. Due to the introduction of the inclined section 10 of the body rail 5, the end section of the drawer slide 6 is approximately sunk, which may result in unintended clamping or unintentional disengagement between the lifting block 11 and the coupling 14. The casing 9a of the retracting device 9 has a linear traveling path 12 for the lifting block 11 to travel. On the straight walking path 12, followed by a bending section 13, the lifting block 11 can be guided into a securing mooring position with a force fit and/or at least a partial shape fit. The coupling element 14 coupled to the poppet 11 extends substantially horizontally in the assembled position.

Figure 3a shows the body rail 5 fixed to the furniture body 2 in a side view, with an obliquely descending lead-in section 10 at its rear end region. The casing 9a of the retracting device 9 is fixed to the furniture main body 2 in a horizontal manner. The casing 9a of the retracting device 9 has an alignment line A which extends substantially horizontally when assembled. It can be seen that the linear travel path 12 of the lift block 11 is mounted to be inclined to the alignment line A of the casing 9a, in particular to the depth direction of the furniture body 2. In a possible design, the linear travel path 12 of the lift block 11 is lowered substantially parallel to the body slide rail 5 to introduce the inclined section 10 such that the coupling element 14 (see FIG. 2) is in the drawer 3 relative to the lift block 11 The walking path can have the same height difference. Figure 3b is shown in an enlarged manner in the marked area in Figure 3a. It can be seen that the longitudinal direction of the body rail 5 is substantially parallel with respect to the alignment line A of the casing 9a of the retracting device 9. The casing 9a can thus be fixed to the furniture body 2 without any problem by a standard hole array.

Figure 4 shows an exploded view of the retracting device 9 with a housing 9a with a linear travel path 12 mounted on or formed in the casing 9a or in the casing 9a along with the bent segments 13 adjacent thereto. The poppet block 11 can be pulled back to a rear end position via the action of the spring 15. To cushion the retracting movement, a damping device 16 is provided, in the form of cylinder-piston units 17, 18, by which the last closing stroke of the drawer 3 can be buffered. The piston rod 18 can be connected to the lifting block 11 via a coupling block 11a, in particular in an articulated manner. To fix the casing 9a, left and right fixed positions 19a and 19b are provided. The two fixed positions 19a and 19b are rotatable by 180° and pushed onto the guide 20 on the casing 9a. With the positions of the fixed positions 19a and 19b, the same casing 9a can be fixed to the left and right sides of the furniture body 2, and the planar sides of the fixings 19a and 19b abut against the plane of the furniture body 2.

Figure 5 is a perspective view showing the retracting device 9 of the poppet block 11 in a pre-stressed parking position.

6a and 6b show the casing 9a of the retracting device 9, and in Fig. 6a, the fixing positions 19a and 19b are mounted to allow the casing 9a to be assembled to the right side of the furniture body 2. In the opposite embodiment, in Fig. 6b, the fixed positions 19a and 19b are mounted to allow the casing 9a to be fixed to the left side of the furniture body 2.

1. . . Furniture

2. . . Furniture body

3. . . drawer

4. . . Drawer pull out guide

5. . . Body slide

6. . . Drawer slide

7. . . Running roller

8. . . Running roller

9. . . Retraction device

9a. . . cabinet

10. . . Introducing a sloped section

11. . . Lifting block

11a. . . Linked block

12. . . Walking path

13. . . Bending section

14. . . Bonding element

15. . . spring

16. . . Buffer device

17. . . Cylinder-piston rod

18. . . Piston rod

19a, 19b. . . Fixed position

20. . . guide

A. . . Alignment line

Further details and advantages of the invention are described below with reference to the drawings. The figure shows:

Figure 1 a, Figure 1b is a perspective view of a cabinet-type furniture, which has a slideable drawer, and a three-dimensional view of the furniture, which has a drawer pull-out guide preloaded on the furniture body and an additional retracting device.

Figure 2 is an exploded view showing the drawer pull-out guide fixed to the side wall of the furniture, and the display retracting device,

Figure 3a, Figure 3b are a side view and an enlarged detailed view showing the drawer slide body of the drawer assembled on the furniture body with an additional retracting device.

Figure 4 is an exploded view of the retraction device,

Figure 5 is a perspective view of a retracting device, and

Figure 6a, Figure 6b are perspective views of the retraction device with a fixed position that can be adjusted 180° so that the identical retraction device can be assembled to the left or right of the furniture.

2. . . Furniture body

5. . . Body slide

8. . . Running roller

11. . . Lifting block

12. . . Walking path

13. . . Bending section

A. . . Alignment line

Claims (7)

A drawer pull-out guide (4) and a retracting device (9), comprising: a drawer pull-out guide (4) having a body slide rail (5) fixed to the furniture body (2) At least one drawer slide (6) slidably mounted relative to the body slide rail (5), the body slide rail (5) has a lead-in inclined section (10) in the rear end section for the drawer (3) to automatically Entering the closed end position, and a retracting device (9) for pushing the drawer (3) or for pushing the drawer pull-out guide (4) of the drawer slide (6) relative to the furniture body ( 2) entering a closed terminal position, the retracting device (9) has a casing, and the casing has an alignment line (A), and the function thereof is to horizontally mount the retracting device (9) on the furniture body (2) Up, a spring-action lifting block (11) is mounted in the casing (9a) or on the casing (9a), and the lifting block (11) is installed at least in sections along a straight walking path (12). Moving, the lifting block (11) applies force to the drawer (3), or applies force to the drawer slide (6) of the drawer pull-out guide (4), lifting the block (11) with the drawer (3) or with the drawer Pull out the guide (4) drawer slide (6) in a releasable manner , characterized in that the straight traveling path (12) of the lifting block (11) extends obliquely to the alignment line (A) of the casing (9a), and the straight line of the lifting block (11) of the retracting device (9) The walking path (12), in the installed state, introduces the inclined section (10) substantially parallel to the body rail (5). The device according to claim 1, wherein the lifting block (11) is mounted to be movable along a straight walking path (12) between a parking position and a terminal position, the parking position being The spring (15) is clamped, and at the end position the spring (15) is at least partially relaxed, and in the state in which the retracting device (9) is assembled on a piece of furniture (1), the end position sinks relative to the mooring position . The device according to the first aspect of the patent application, characterized in that the lifting block (11) The angle of inclination of the straight walking path (12) with respect to the alignment line (A) of the casing (9a) is between 2 and 8 degrees, preferably between 2 and 4 degrees. The device according to claim 1 is characterized in that a damping device (16) is provided for damping the movement of the lifting block (11). The device according to claim 4, characterized in that the damping device (16) has a cylinder-piston unit (17, 18) which is preferably hydraulic. The device according to claim 1, characterized in that the retracting device (9) is assembled on a piece of furniture (1) via at least one fixed position (19a, 19b), the fixed position (19a, 19b) being rotatable The 180° is movably mounted on the retracting device (9). A piece of furniture comprising furniture for pulling out the guiding and retracting device of the drawer according to item 1 of the patent application.