RU2508036C2 - Retaining device for guide of pull-out elements of furniture - Google Patents

Abstract

FIELD: personal use articles.

SUBSTANCE: claimed invention relates to a retaining device for guide of pull-out elements of furniture, in particular, drawers, and is aimed at the implementation of a reliable unlocking of the switching element. The retaining device comprises a switching connecting link, in which the switching element is mounted with the ability of displacement. The switching connecting link has a loop-shaped part with a locking recess. The switching element is made with the ability to lock the spring force in the locking recess. The release is provided by which the switching element can be removed from the locking recess.

EFFECT: implementation of a reliable unlocking of the switching element.

11 cl, 26 dwg

Description

The invention relates to a locking device for a guide of sliding furniture elements, in particular drawers, comprising a switching link, in which a switching element is mounted for movement, the switching link having a loop-shaped portion with a locking recess, and the switching element can be blocked by the spring force in the locking recess.

EP 1845821 discloses a closing and opening device for sliding drawer rails, and a locking mechanism is provided. When the drawer is closed, the ejector spring is tensioned and fixed using the locking mechanism. To release the locking mechanism, the drawer is pressed against the spring force, moving the switching element from the locked position in the switching link, and then using the spring to move the box in the opening direction. This device for closing and opening has the disadvantage that the unlocking is carried out manually by pressing the drawer. Moreover, in the case of drawers of large width, in which the devices for closing and opening are located on both sides, it may happen that the device for closing and opening is unlocked only on one side, while on the other side the switching element remains locked. As a result, the opening becomes impossible, in addition, the fittings are exposed to high forces, which can lead to damage.

In connection with the foregoing, the objective of the present invention is to create a locking device for the guide retractable furniture elements, providing reliable unlocking of the switching element.

This problem is solved thanks to the locking device with the characteristics of paragraph 1 of the claims.

The proposed locking device comprises a release device, by means of which the switching element can be withdrawn from the locking recess. Due to this, the release of the switching element is carried out directly by means of a release, and not by means of many parts, which already due to deviations from the set size provide only not very accurate positioning of the switching element. As a result of movement relative to the locking recess, the release can move the switching element in the loop-shaped portion of the switching link. In this case, in order to unlock, with the possibility of movement, you can optionally perform the release and / or locking recess.

In one embodiment of the claimed invention, the release can be controlled by a switch, which switch can activate a drive that can actuate the release in an electromechanical, electromagnetic or any other way. The switch can be mounted, for example, on the front of the drawer or on the handle. In addition, movement by pressing the drawer can be detected by a sensor, which then gives a signal to the control device for actuating the release, so that the switching elements on opposite sides of the drawer are simultaneously unlocked. For this, the sensor can detect the movement of the movable rail or the part connected to the movable rail, so that the release can then be actuated. The control device can also actuate the switch using optical, acoustic or other signals.

In one embodiment of the claimed invention, the release is mounted on a shifting link with the ability to move or rotate. In one embodiment of the claimed invention, the release is made in the form of a slider that can be moved along the socket on the part with the switching link, so that a compact design of the locking device is achieved. The release can be moved by a drive, which, upon completion of the release process, again moves the release to its original position. The trip unit may have a structure that allows it to be rotated about an axis, rotated or moved. Various actuators can be used for the drive, for example, a traction electromagnet described below with a device for returning to its original position.

In one embodiment of the claimed invention, the release in the initial position forms a stop for the switching element. Due to this, the switching element can also be moved directly when the release is moved. In this case, the release can be installed next to the stationary protrusion on the switching link, on which the locking recess is located.

To unlock the switching element, the switching link can be fixed to the holder, and the release can be moved relative to the switching link. Alternatively, the trip unit can be fixedly mounted, and the shifting link can be moved relative to the trip unit, or the trip and the shifting link can be moved in opposite directions.

In one embodiment of the claimed invention, the release in the opening direction is adjacent to the abutment, and the shifting link with a pulling force in the opening direction can move relative to the release. As a result, overload protection can be provided when the drawer is loaded with pulling force in the opening direction. In this case, the release, due to the stop, remains in place, and the unlocking occurs as a result of movement of the switching link in the direction of opening the drawer, preferably against the spring force for prestressing the switching link in the initial position. With the help of such a spring, the force for disengagement during overload can be set. When the switching element is released under the action of a pulling force or overload, the release can be combined due to the movement of the switching link and the release, that is, the link moves in the opening direction, and the release in the opposite direction. For this, an appropriate sensor may be provided for detecting the pulling force or movement by the pulling force and a control device connected to this sensor for actuating the release.

Below the invention is explained in detail on the example of an embodiment and with reference to the accompanying drawings. The drawings show the following:

figure 1 is a perspective view of a locking device mounted on the guide of the drawer;

figure 2 is an axonometric view of the locking device of figure 1;

figure 3 - image of the locking device of figure 2 with a spatial separation of parts;

figa and 4B are two views of the switching link and the switching element of the locking device of figure 2;

figa-5D - several axonometric images of the details with the switching link with a view of the release;

6A-6D are several views of the switching link when releasing the switching element;

Fig.7 is an enlarged axonometric image of the release and the details with the switching link from Fig.3;

figa-8D - several views of the locking device when the release of the switching element;

figa-9D - several views of the locking device with a switch when the release of the switching element;

figure 10 - electrical diagram of the control device by the release of the locking device;

11 is a perspective view with a spatial separation of parts of a modified locking device.

Guide 1 contains a fixed guide rail 2, attached to the furniture body. A movable guide rail 3 is mounted on the fixed guide rail 2 directly or by means of an intermediate rail, on which the protruding activator 17 is fixed. The activator 17 is connected to a leash 7, which can be moved along the curved guide 5 of the housing 4. The housing 4 can be fixed on fixed guide rail 2.

On the housing 4 is fixed another housing 6 of the spring element. The housing 6 can be secured by inserting it into the groove on the fitting 65, made integrally with the housing 4. The leash 7 is connected to the rod 60, the thickened end portion 61 of which, made in the form of a spherical head, is fixed in a socket having the shape of a spherical segment. That side of the rod 60, which is located opposite the end portion 61, is connected to a washer 62 to which the end of the spring 63 abuts. The opposite end of the spring 63 rests on the cover 64 of the housing 6.

In addition, the leash 7 has a protrusion 8, on which the connecting element 9 is fixed (see figure 4). The connecting element 9 is connected to the switching element 10, which is made in the form of a metal wire having a bent end part 11. The bent end part 11 of the switching element 10 is included in the switching link 20, made as a whole with the part 18.

Part 18 is mounted on the housing 4 with the possibility of movement in the socket 19, made in the form of a groove. In this case, the part 18 by means of a spring 45, the end 46 of which by means of the holder 48 is fixed on the housing 4, is prestressed in the direction of the initial position. The opposite end 47 of the spring 45 is fixed to the part 18. In the socket 19 of the housing 4 there is a bottom 12 located at a certain distance from the part 18. As a result, the switching element 10 made in the form of a wire can move along the switching link 20 between the bottom 12 and the part 18, moreover the bent end portion 11 enters the link 20. In addition, the bottom 12 prevents the bent end portion 11 from coming out of the switching link 20.

By means of the release 30, the switching element 10 can be released from the locked position, for which the release is connected by means of the rods 51 to the traction electromagnet 50. The traction electromagnet 50 has a device located inside to return to its original position.

In more detail, the operation of the switching link 20 and the switching element 10 is explained with reference to FIG.

In the initial position, the drawer connected to the movable rail 3 is in the closed position, and the switching element 10 is locked in the switching link 20. In this case, the bent end portion 11 is in the locking recess 26 of the switching link 20 due to the force of the spring 63 transmitted through the rod 60, leash 7 and other connecting elements. The switching link 20 in the housing 18 is made in the form of a groove, it contains a loop-shaped section 23.

If the drawer needs to be opened from this closed position (Fig. 4A), this can be done by releasing the switching element 10 by pressing the box in the closing direction to the furniture body, while the bent end portion 11 will move to the input bevel 28 of the switching link 20. This leads to the fact that the switching element 20 rotates and enters the socket 27, which is located with an offset relative to the locking recess 26 (pigv). If the box 1 is released, then under the action of the force of the compressed spring 63, the switching element 10 can move back along the loop-shaped portion 23 of the switching link 20 until the switching element reaches the protrusion 32.

When the drawer moves in the closing direction, the switching element 10 moves along the switching link 20 to the loop-shaped portion 23, to the branch 24 located next to the slot 25 made in the form of a groove. In the area of the branch 24, the switching element 12 first moves to the protrusion 25 until until the front panel of the drawer rests against the furniture body. Then, the drawer 1 is driven back by the force of the compressed spring 63 to the locking recess 26, so that the position shown in FIG. 4A is reached.

5 and 6, the detail 18 with the switching link 20 is shown with different positions of the switching element 10, which allows the release of the switching element 10 and the other way to properly open the sliding furniture elements located on the rail. A trip unit 30 is mounted on the part 18 with the possibility of movement, by means of which the switching element 10 can be withdrawn from the locking recess 26.

5A and 6A, the end portion 11 of the switching element 10 is located in the locking recess 26, and the release 30 is in the initial position.

To release the switching element 10, the release 30 is moved in the longitudinal direction of the part 18, while according to FIG. 6B, the end part 11 of the switching element 10 is withdrawn from the locking recess 26 and pressed against the input bevel 28. Upon further movement of the release 30 according to FIG. 5C, the end part 11 finally ejected from the locking recess 26 and moves around the tip 29 on the edge of the locking recess 26 to the loop-shaped portion 23. In this case, the release 30 is installed with an offset relative to the approach th taper 28 and preferably has a projection 31, the bevelled in the direction of the tip 29.

Under the action of the spring force 63, the switching element 10 moves in the opening direction along the loop-shaped portion 23 of the switching link 20 (Fig. 6D).

7, the release 30 is shown in detail. The trip unit 30 is made essentially in the form of a plate, it is mounted to move in the socket 40 of the part 18 with the switching link 20. The trip unit 30 has a step 35 on which a shelf is formed, at the end of which an abutment 31 is made for the end part 11 of the switching element 10.

In addition, a protrusion 32 is provided on the trip unit 30, which is guided in a substantially rectangular socket 40 of the part 18. A protrusion 34 is provided on the side of the trip unit 30, which enters the open edge portion 41 of the recess 40. An opening 42 is made in the receptacle 40 through which a step 35 and a shelf with a protrusion 31 are introduced. The release 30 can be moved using electromechanical or electromagnetic means connected to the protrusion 34. For this, a traction electromagnet 50 is provided, which, if necessary, is powered by a control device royals. The control device can be connected to sensors for recording electrical, optical or acoustic pulses, in order to then enable the release.

On figa-8D the locking device is shown during the release of the switching element 10. In figa release 30 is in the initial position, and the switching element 10 is locked in the locking recess 26. For unlocking, power is supplied to the electromagnet 50, which through rods 51, connected to the protrusion 34, the release 30 moves against the opening direction. As a result, the end portion 11 of the switching element 10 moves from the locking recess 26 to the loop-shaped portion 23, as shown in FIGS. 6A-6D;

Then, after turning off the power of the traction electromagnet 50, the release 30, for example, spring-loaded inside the device to return to its original position, made in the form of a spring, is again moved to its original position. The released switching element 10, under the action of the force of the spring 63, moves in the opening direction. In the extreme position, the lead 7 stops at the end of the curved guide, and the movable rail 3 of the guide can move in the opening direction regardless of the lead 7. In this embodiment, the gap between the front panel and the furniture body is not required for disengagement, since the external electromagnet controls, for example, switch.

If a pulling force is applied to the front panel of the drawer, then it can be moved against the force of the spring 45 due to the installation of the part 18 with the possibility of movement. With this overload, the release 30 remains in place and forms an emphasis in the opening direction for the switching element 10, and due to the relative movement between the part 18 and the switching element 10, a release occurs in accordance with the sequence shown in FIGS. 6B and 6C.

On figa-9D, the locking device is shown during unlocking by means of a switch 70 having a probe 71, with which you can register the movement of the part 18.

Optionally, the release of the switching element 10 by moving the part 18 (overload) can also be achieved by moving the release 30 against the opening direction. For this, the switch 70 with the help of the probe 71 can detect the movement by pulling force or pulling force on the part 18, after which the control device can actuate the traction electromagnet 50. As a result, the release 30 is moved by the traction electromagnet 50 (Figs. 9B and 9C) and releases the switching element 10, as explained above with reference to FIGS. 6B and 6C. After the release of the part 18 and the release 30 under the action of the force of the spring 45 as a result of the action of the device to return to its original position again move to its original position (fig.9D).

Figure 10 presents the electrical circuit of the control device. The switch 70 comprises a sensor and / or a probe and is connected via a control device to a traction electromagnet 50, by means of which the trip unit 30 can be moved. The traction electromagnet 50 is connected to the power supply 75, and power can be supplied to it to actuate the trip unit 30.

11 shows a modified implementation of the locking device, here the same parts are indicated by the same reference numbers as in the previous implementation example. On the housing 4, the part 18 'with the switching link is mounted without the possibility of movement, at the end of the part 18' there is a head 19 'fixed on the holder 48' of the housing 4. As a result, the part 18 is mounted on the housing 4 so that the switching element 10 can only be unlocked following the steps shown in FIGS. 4 and 6.

In the present exemplary embodiments, the switch 70 may be coupled to mechanical, optical, or acoustic sensors that cause the release of the switching element 10, depending on the application. Alternatively, using the switch 70, for example, you can turn on the lighting in the drawer. In addition, with the switch 70 you can activate other functions.

Instead of the traction electromagnet 50, another drive, for example a rotary magnet, can be provided to move the release 30. The trip unit 30 can also be rotatably mounted rather than linearly moved. The drive for moving the trip unit 30 is not limited by an electromagnet, other servo drives can also be used.

In addition, with the help of the switch 70, it is possible to simultaneously release several switching elements 10, for example, switching elements 10 on rails located on opposite sides of the drawer.

List of item numbers

1 - guide retractable furniture elements

2 - a directing rail

3 - movable rail

4 - case

5 - curved guide

6 - case

7 - leash

8 - ledge

9 - connecting element

10 - switching element

11 - end part

12 - bottom

17 - activator

18 - detail

18 '- detail

19 - nest

19 '- head

20 - switching backstage

23 - loop-shaped section

24 - branch

25 - nest

26 - retaining recess

27 - nest

28 - entry bevel

29 - tip

30 - release

31 - emphasis

32 - ledge

35 - step

40 - nest

41 - edge part

42 - hole

45 - spring

46 - end of spring

47 - end of spring

48 - holder

48 '- holder

50 - traction solenoid

51 - traction

60 - bar

61 - end part

62 - washer

63 - spring

64 - cover

65 - fitting

70 - switch

71 - probe

75 - power supply

Claims (11)

1. A locking device for a guide of sliding furniture elements, in particular for drawers, comprising a switching link (20), in which a switching element (10) is mounted with the possibility of movement, the switching link (20) having a loop-like portion (23) with a locking recess (26), and the switching element (10) is configured to be blocked by the force of the spring (63) in the locking recess (26), characterized in that a release (30) is provided, which is configured to withdraw the switching element (10) from support recesses (26). 2. The locking device according to claim 1, characterized in that the release (30) is made controllable by a switch (70). 3. The locking device according to claim 2, characterized in that the release (30) is configured to be actuated by a switch (70) in an electromechanical or electromagnetic manner. 4. The locking device according to any one of claims 1 to 3, characterized in that the release (30) is mounted with the ability to move or rotate on the part (18) with the switching link (20). 5. The locking device according to any one of claims 1 to 3, characterized in that the release (30) is made in the form of a slider installed with the ability to move along the socket (40) of the part (18) containing the switching link (20). 6. The locking device according to any one of claims 1 to 3, characterized in that in the initial position, the release (30) forms a stop (31) for the switching element (10). 7. The locking device according to any one of claims 1 to 3, characterized in that the release (30) is movable by a traction electromagnet (50). 8. The locking device according to any one of claims 1 to 3, characterized in that a sensor is provided that detects the movement of the movable rail (3) or the part connected to the movable rail (3). 9. The locking device according to any one of claims 1 to 3, characterized in that the switching link (20) is mounted on the holder, and the release (30) is movable. 10. The locking device according to any one of claims 1 to 3, characterized in that the release (30) in the opening direction forms a stop, and the switching link (20) with a pulling force in the opening direction is movable relative to the release (30). 11. The locking device according to claim 10, characterized in that the switching link (20) by means of a spring (45) is prestressed in the direction of the initial position.

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