RU2777036C2 - Device for attachment of element of retractable type, and piece of furniture - Google Patents

Abstract

FIELD: furniture.

SUBSTANCE: invention relates to a device for attachment of an element of a retractable type on a rail. The device for attachment of an element of a retractable type on a rail of an output guide has a clamping mechanism, which contains a case with a socket, in which it is possible to insert an elongated retaining part for its attachment on the case. In the socket, there is at least one movable clamping body adjacent with one side to the retaining part and with the opposite part to a supporting wall oriented at a slope relatively to the direction of insertion of the retaining part. Clamping bodies, using a spring, a prestressed in a clamping position. A piece of furniture containing the device is also disclosed.

EFFECT: creation of a device, which is constructed compact and provides high retention forces in continuous adjustment of a retaining part relatively to a case.

19 cl, 19 dwg

Description

The present invention relates to a device for attaching a drawer-type member to an exit guide rail, having a clamping mechanism that includes a housing having a socket into which an elongated holding portion can be inserted to secure it to the housing.

WO 2016/177731 A1 discloses a device for fastening a pull-out type element in which a web-like retaining part is inserted into the seat of the clamping mechanism. To secure the force-locked holding part from being pulled out, a self-locking clamping lever is provided in the socket, which prevents the holding part from being pulled out of the socket again. The holding part can be permanently fixed by means of a force-locking connection. The swivel clamp arm requires a relatively large amount of installation space to ensure high clamping forces, and the axis of rotation of the clamp arm is subjected to high loads.

Thus, it is an object of the present invention to provide a drawer-type member attachment device that is compactly designed and provides high holding forces while continuously adjusting the holding portion relative to the body.

This problem is solved using a device having the characteristics of paragraph 1 of the formula.

In the device according to the invention, at least one movable clamping body is provided in the seat of the housing, which rests on one side against the elongated holding part and on the opposite side against the supporting wall, oriented obliquely with respect to the insertion direction of the holding part. In this way, the holding part can move in the direction of insertion in the socket, the clamping body allowing the movement of the insert, but preventing the holding part from being withdrawn. The clamping body is self-braking in the pulling direction opposite to the insertion direction due to the supporting wall oriented obliquely to the insertion direction, and increases the friction forces on the holding portion in case of application of pulling forces. In this way, the holding part can be secured to the body with a removal protection and a compact structure having one or more clamping bodies.

The holding part can preferably be inserted between at least two rotatable clamping bodies, each of which is supported by a supporting wall on the side facing away from the holding part. In this case, these two supporting walls can diverge in the form of a wedge in the direction of insertion, so that the clamping bodies are supported on both sides on the supporting wall, which extends at an angle. The angle between the insertion direction of the holding part and the supporting wall can be in the range of 1° to 20°, in particular 2° to 8°. Thus, the holding part can be permanently fixed in any position on the housing.

The angle between the holding part and the supporting wall is less than the allowable angle of friction, depending on the materials used for the holding part, the movable clamping body and the supporting wall.

In one embodiment, a release element is provided, by means of which the clamping of the holding part on the at least one clamping body can be released. To do this, at least one clamping body can be moved in the direction of insertion through the release element, for example by sliding or turning the release element. As soon as the clamping body is slightly moved in the direction of insertion, the holding part can be smoothly withdrawn from the body.

In a further embodiment, the clamping of the retaining portion on at least one clamping body can be disengaged by moving the clamping body through an angle of approximately 90° with respect to the insertion direction of the retaining portion. This direction of movement may be provided in addition to the release element to provide a second removal direction of the drawer type element.

For a simple design, the support walls are preferably integral with the housing. Thus, the clamping mechanism can be made using only a few components. The clamping bodies can be made in the form of balls, cylinders or cylinders, which are inserted into the socket of the body. The retaining part may be in the form of a web or a rod, preferably of metal, to transmit high holding forces.

For easy installation, a slot can be provided on the body for inserting the holding portion, and the slot can be provided in a horizontal, vertical, or other direction in the installed position to avoid incorrect installation. The hole can also be polygonal or circular.

In order to secure the clamped position, the release element can be pretensioned by means of a spring in the clamped position. Alternatively or additionally, the clamping bodies can also be pretensioned with a spring in the clamped position.

The body is preferably fixed to the drawer, in particular to the base of the drawer, and the holding part is fixed to or integral with the outlet guide. The body can also be fixed to the frame or formed integrally with it. Of course, the clamping mechanism body can also be fixed to the exit rail and the holding portion to the drawer to fix the drawer in the direction of the exit rail.

In a further embodiment, the housing or holding portion is held on the adjustment assembly to fix the drawer-type member in an adjustable manner relative to the rail in at least one direction. The adjustment assembly may comprise, for example, means for vertical adjustment and/or means for lateral adjustment. For lateral adjustment, the housing may be movably mounted on the seating portion and may be mounted on the seating portion with an adjusting member such as a knurled nut, threaded bolt, or other adjusting means. For example, for vertical adjustment, a wedge-shaped adjustment element may be provided that is movable to change the distance between the draw-type element and the housing. The adjusting element can be locked or fixed in another way in the desired position.

In addition, the clamping mechanism according to the invention can be released using a release element. Such a release element can be embodied, for example, in the form of a slider that moves the holding part in a direction perpendicular to the direction of insertion into the housing in order to separate the holding part from the clamping bodies. For this purpose, the release element may be in the form of a wedge-shaped slider or a pivot arm.

The invention is explained in more detail below with the help of several exemplary embodiments described with reference to the accompanying drawings. The drawings show the following:

in fig. 1 shows a perspective view of a drawer which is fastened by means of the device according to the invention to an outlet rail;

in fig. 2 shows a view of the drawer of FIG. 1 during installation;

in fig. 3 shows a view of the drawer of FIG. 1 in the installed position;

in fig. 4 is a view of the drawer of FIG. 1 during installation with a view of the body;

in fig. 5 is a view of the drawer of FIG. 4 in installed position with a view of the hull;

in fig. 6A and 6B are two exploded perspective views of the clamping mechanism of the device according to the invention;

in fig. 7A and 7B show two views of the clamping mechanism during installation of the holding portion;

in fig. 8 is a plan view of the clamping mechanism with the holding part installed;

in fig. 9 is a perspective view of yet another exemplary embodiment of a drawer-type member attachment device;

in fig. 10 shows a perspective view of a piece of furniture having a pull-out type element, which is fixed by means of the device according to the invention on an outlet rail;

in fig. 11 shows a view of the piece of furniture from FIG. 10 during installation;

in fig. 12 is a perspective view of the drawer-type element attachment device of FIG. ten;

in fig. 13 is a view of the lead-out rail having a holding portion for receiving the drawer-type member of FIG. ten;

in fig. 14 is a perspective view of another exemplary embodiment of an apparatus according to the invention having an adjustment unit;

in fig. 15 is a perspective view of the device of FIG. fourteen;

in fig. 16 is a perspective view of the device of FIG. fourteen;

in fig. 17 is a perspective view of the device of FIG. 14 having a different vertical installation;

in fig. 18 is a perspective view of the device of FIG. 14, in which the holding part is mounted on the body, and

in fig. 19 is a perspective view of the device of FIG. 18 while unlocking the device.

The drawer-type element 1 is made in the form of a drawer and contains a base 2 and two side walls 3 that connect the front wall 5, in front of which, if necessary, a decorative front panel can be placed, with the rear wall 4. The drawer-type element 1 can be used in a piece of furniture or household appliance and be held movably by means of outlet guides 6, with only one of the two outlet guides 6 shown in the drawings.

To fix the element 1 of the retractable type on the output guide 6, a clamping mechanism 10 is provided, which includes a housing 12 fixed on the base 2 of the element 1 of the retractable type. In addition, the clamping mechanism 10 includes a holding part 11 in the form of a jumper, which is fixed on the movable slide rail 8 of the output guide 6 or is integral with it. The sliding rail 8 is mounted by means of rollers on the guide rail 7, which is fixed on the body of the piece of furniture or household appliance. Optionally, an elongated middle rail can be provided between the slide rail 8 and the guide rail.

As shown in FIG. 2, the body 12 is located in the region of the front wall 5 of the drawer-type member 1 on which the front panel can be fixed, and the elongated holding portion 11 is oriented parallel to the direction of travel of the sliding rail 8. The adjustable holding block 9 is located in the rear region of the slide rail 8, thus the clamping mechanism 10 of the device according to the invention is located in the front region of the pull-out type member 1, the position before installation being shown in FIG. 2 and the position after installation is shown in FIG. 3.

The mounting of the holding part 11 on the case 12 with the case open is shown in FIG. 4 and 5. The housing 12 comprises a seat 15 in which clamping bodies 20 are provided which, in the exemplary embodiment shown, are in the form of balls, in particular in the form of steel balls. In this example, four clamping bodies 20 are provided, two of which are positioned one above the other. It is also possible to provide a different number of clamping bodies 20. However, the clamping bodies 20 can also be made in the form of barrels, cylinders or other bodies of rotation. The holding part 11 is easily mounted by being inserted into the body 12 between two clamping bodies 20 which prevent the holding part 11 from being removed after installation in a self-locking manner. The clamping bodies 20 can also be provided on only one side of the holding part 11 in the housing 12. In this case, the clamping bodies 20 act on one side of the holding part 11, while on the opposite side a wall is provided against which the holding part 11 rests.

The clamping mechanism 10 is shown with all the individual parts in FIG. 6A and 6B. The housing 12 includes a chamber-like seat 15 which includes a front wall 16 having a slotted opening 17 through which a web-like retaining portion 11 can be inserted. In addition, a rear wall 19 and supporting walls 18 are provided which connect the front wall 16 and the rear wall 19 and which widen in a wedge form from the front wall 16 to the rear wall 19. The angle of the supporting walls 18 with respect to the direction of insertion of the holding part 11 is preferably range from 1° to 20°, in particular from 2° to 8°.

The body 12 includes outwardly protruding brackets 13 into which mounting holes 14 are recessed so that the body 12 can be secured to an additional element such as the base 2 or side wall 3 of a drawer.

The seat 15 accommodates a plurality of clamping bodies 20, which in the illustrated exemplary embodiment are in the form of balls, with the retaining portion 11 being inserted between every two clamping bodies 20.

In order to enable the clamping mechanism 10 to be released from the clamped position, a release element 22 is provided which is pretensioned by the spring 21 in the clamped position. To do this, the spring 21 is supported on one side on the rear wall 19 and on the opposite side on the wall 26 of the release element 22, and in the wall 26 a female hole 27 is formed for fastening one end of the spring 21. Thus, the release element 22 is prestressed by the spring 21 in the direction front wall 16. The clamping bodies 20 can be held and guided simultaneously in the release element 22, whereby it will be ensured that the clamping position is not accidentally released.

The release element 22 has two webs 23 protruding into the socket 15, which abut against the clamping bodies 20. The release element 22 can be moved in the insertion direction against the force of the spring 21, whereby the clamping bodies 20 are also slightly moved in the insertion direction of the holding part 11 by means of the bridges. 23 to release the clamping of the holding portion 11 between the clamping bodies 20. The clamping is released by the wedge-shaped expanding supporting walls 18 during the movement of the clamping bodies 20 in the insertion direction. The gap formed by the bridges 23 may extend up to the upper side of the release element 22. The opening 17 may also be made open towards the release element 22. In this case, the clamping of the clamping bodies can be effected by moving in the direction of the open areas. Thus, the release movement of the holding part 11 is transverse to the connection direction of the holding part 11.

The release element 22 overlaps the housing 12 and includes two guide elements 24 which overlap two side brackets 25 on the housing 12. The release element 22 can be slightly offset relative to the housing 12 by means of a guide. The guide elements 24 may be hook-shaped and engage under the brackets 25 on the body 12 so that the release element 22 is secured against lifting.

In FIG. 7A shows the clamping mechanism 10 before mounting the retaining portion 11. The retaining portion 11 is inserted through the slot 17 in the front wall 16 and presses the clamping bodies 20 sideways and in the direction of insertion against the rear wall 19. The retaining portion 11 can be inserted into the body 12 until it reaches required position. After that, the holding part 11 is secured against being pulled out and is force-locked. This position is shown in Fig. 7B.

The installed position without tripping element 22 is shown in FIG. 8. The clamping bodies 20 supported on the side away from the holding part 11 on the inclined supporting wall 18 abut against the holding part 11 on opposite sides. If traction forces are applied to the holding portion 11, the clamping forces are increased by the clamping bodies 20 and the supporting walls 18, and thus prevent removal. To release the clamping mechanism 10, the release member 22 can move the clamping bodies 20 in the direction of insertion against the back wall 19, so that the clamping forces are then released and the holding part 11 can be removed.

In the illustrated exemplary embodiment, four clamping bodies 20 are used to fasten the holding portion 11 as a web to the housing 12. Also, only two clamping bodies 20 or even one clamping body 20 may be provided if the holding portion 11 is supported by the wall of the housing 12. In addition, the geometry of the clamping bodies 20 can vary, for example also be wedge-shaped. The retaining portion 11 may also be in the form of a rod, a tube, or other form, instead of the form of a bridge.

In FIG. 9 shows yet another exemplary embodiment of the device, in which the displaceable release element 22 is not used to release the clamp mechanism 10 on the housing 12, but rather as a release element in the form of a pivot arm 22'. The lever 22' is rotatably mounted on the body 12 or base 2 of the pull-out type element 1 and can move the clamping bodies 20 slightly in the direction of insertion to release the clamping of the holding part 11. Also visible on the body 12 is a slot 28 through which the holding part can be moved from casing across the direction of insertion, without actuating the release lever.

In FIG. 10 shows a perspective view of a piece of furniture having a furniture body 30, on which the drawer-type element 1 is fixed to the exit rail 6. A clamping mechanism 10' for fixing the drawer-type element 1 is located adjacent to the front wall 5 made in the form of a front panel. For this purpose, the housing 12' is fixed on the base 2' of the retractable type element 1 (FIG. 11). The housing has a slot 17' into which the holding portion 11' can be inserted in the form of a bridge. In this case, the installation direction is in the longitudinal direction of the lead-out guide 6. The holding part 11' is made in the form of an angled metal plate, which is attached, in particular, welded to the slide guide 8 of the lead-out guide 6.

In FIG. 12 and 13 show the clamping mechanism 10' in detail. The body 12' is positioned laterally adjacent to the slide rail 8, on which the web-like holding part 11' is fixed. The clamping bodies are located in the housing 12', as already disclosed in the description of the previous exemplary embodiments. The clamping mechanism 10' can be disengaged in this exemplary embodiment by lifting the drawer type member 1, that is, by moving it substantially perpendicular to the mounting direction. The clamping bodies in the housing 12' provide a lock against removal of the retaining part 11' in the longitudinal direction of the lead-out guide 6, but only slight clamping or friction forces act perpendicular to this direction and can be overcome during removal. Thus, after lifting the drawer-type member 1, the web-like holding portion 11' can be directed downward through the slot 17'.

In FIG. 14-16 show a modified drawer-type member locking device provided with a housing 42 that includes an opening 17 for inserting the retaining portion as in the previous exemplary embodiments, for clamping the retaining portion with clamping bodies 20. The housing 42 includes a slotted an opening perpendicular to the insertion direction so that the holding portion can be removed from the body 42 perpendicular to the insertion direction.

The body 42 is held on an adjustment assembly which allows for vertical and lateral adjustments. To do this, the body 42 is located on a slider 41, which is movably mounted on the mounting part 40. For this, the mounting part 40 includes guide means, such as curved wall sections and/or a guide pin 44, passing through an elongated hole 43 on the slider 41. It can also be other guiding means for mounting the slider 41 may be provided to be movable on the mounting portion 40 perpendicular to the direction of insertion of the retaining portion. To perform lateral adjustment, an adjusting element 45 is provided in the form of a knurled nut, which is rotatably mounted on the mounting part 40, but without displacement in the axial direction. For this purpose, on the mounting part 40 there are external bridges 46 and at least one internal bridge 47, which fix the adjusting element 45 in the axial direction, but allow rotational movement. The adjusting element 45 is provided with a threaded pin which engages in a threaded hole on the block 49 of the slider 41, so that when the adjusting element 45 is rotated, the slider 41 and therefore also the housing 42 are linearly adjusted relative to the mounting part 40. This also changes the position of the sliding type element 1, on which the mounting part 40 is fixed, and the sliding rail of the outlet guide, which is fixed indirectly or directly on the body 42.

In addition, the adjustment block also includes means 60 for vertical adjustment. The means 60 for vertical adjustment is made in the form of a slider having a wedge-shaped adjusting element 61, which is held with the possibility of displacement on the bracket 65 of the adjusting element 61. The wedge-shaped adjusting element 61 includes a stop 62 that limits the sliding movement relative to the slider 41. gear teeth 63 which are engaged with at least one projection or tooth on the vertical adjustment means 60 so that the wedge-shaped adjustment member 61 can be locked in various positions on the slider 41.

As shown in FIG. 16, the mounting portion 40 can be fixed to the underside of the drawer type member 1, for example, by means of screws that pass through the fixing holes 48. vertical adjustment of the drawer type element relative to the outlet guide. The means for vertical adjustment can also be formed by means of other mechanisms, such as eccentrics, threaded pins or other means of adjustment, instead of the wedge-shaped adjusting element 61.

The device for fixing the element of the retractable type also contains a release element 50, which is held with the possibility of displacement on the bracket 65 of the slider 41.

In FIG. 18, the lead-out guide rail 8' is fixed to the housing 42. Of course, it is also possible to fasten the holding part 11 or 11' to the housing 42, which is permanently connected to the lead-out guide rail. The rail 8' is engaged in the opening 17 of the housing 42 and is clamped by the clamping bodies 20. If the rail 8' is assumed to be unlocked from the clamped position, the release member 50 is displaced on the bracket 65 as shown in FIG. 19. The wedge-shaped contact surface of the release member 50 presses the rail 8' upward so that the rail 8' is removed from the housing 42 substantially perpendicular to the direction of insertion. To reattach the rail 8', the release member 50 can be pushed back and the rail 8' can be inserted longitudinally into the housing 42.

LIST OF REFERENCES

1 - drawer type element

2 - bottom

3 - side wall

4 - back wall

5 - front wall

6 - output guide

7 - guide rail

8 - sliding rail

8' - rail

9 - holding block

10, 10' - clamping mechanism

11, 11' - holding part

12, 12' - housing

13 - bracket

14 - mounting hole

15 - socket

16 - front wall

17, 17' - hole

18 - supporting wall

19 - rear wall

20 - clamping body

21 - spring

22 - tripping element

22' - lever

23 - jumper

24 - guide element

25 - bracket

26 - wall

27 - female hole

28 - gap

30 - furniture body

40 - installation part

41 - slider

42 - building

43 - oblong hole

44 - guide pin

45 - adjusting element

46 - jumper

47 - jumper

48 - mounting hole

49 - block

50 - release element

60 - means of vertical adjustment

61 - adjusting element

62 - emphasis

63 - gear teeth

65 - bracket.

Claims (19)

1. A device for fastening an element (1) of a retractable type on a rail (8) of an output guide (6), having a clamping mechanism (10, 10'), which contains a housing (12, 12', 42) having a socket (15), into which it is possible to insert an elongated holding part (11, 11') for its fastening on the body (12, 12', 42), characterized in that at least one movable clamping body (20) is located in the socket (15), adjacent one side to the holding part (11, 11') and the opposite side to the supporting wall (18), oriented obliquely relative to the insertion direction of the holding part (11, 11'), and the clamping bodies (20) are prestressed by means of the spring (21) in the clamped position. 2. The device according to claim 1, characterized in that the holding part (11, 11') is designed to be inserted between at least two rotatable clamping bodies (20), each of which is supported by a supporting wall (18) on the side facing away from the holding part (11, 11'). 3. The device according to claim 2, characterized in that two support walls (18) are provided which widen in the form of a wedge in the direction of insertion. 4. Device according to any one of claims 1 to 3, characterized in that the angle between the insertion direction of the retaining part (11) and the supporting wall (18) is in the range from 1° to 20°, in particular from 2° to 8° . 5. The device according to any one of claims 1 to 4, characterized in that a release element (22, 22') is provided, by means of which it is possible to release the clamping of the holding part (11) on at least one clamping body (20), and the clamping the bodies (20) are movable in the insertion direction by means of the release element (22, 22'). 6. Device according to any one of claims 1 to 5, characterized in that the supporting walls (18) are integral with the housing (12). 7. A device according to any one of claims 1 to 6, characterized in that the clamping bodies (20) are made in the form of balls, barrels or cylinders. 8. Device according to any one of claims 1 to 7, characterized in that the holding part (11, 11') is in the form of a web. 9. Device according to any one of claims 1 to 8, characterized in that a slot (17, 17') is provided on the body (12) for inserting the holding part (11, 11'). 10. Device according to claim 5, characterized in that the release element (22, 22') is pretensioned in the clamped position by means of a spring (21). 11. The device according to any one of claims 1 to 10, characterized in that the housing (12, 12', 42) is located on the drawer (1) or is made as one piece on the drawer or on the output guide (6) or as one whole on the outlet guide (6), wherein the holding part (11) is located on the outlet guide (6) or is made in one piece on the outlet guide (6) or on the drawer (1) or as one piece on the drawer. 12. A device according to any one of claims 1 to 11, characterized in that it is possible to remove the clamping connection by relative movement between the clamping bodies (20) and the holding part (11) transverse to the direction of insertion of the holding part (11). 13. Device according to claim 12, characterized in that the housing comprises an opening (17') for the holding part (11'), into which the holding part (11') can be inserted in the insertion direction and extend transverse to the insertion direction. 14. The device according to any one of claims 1 to 13, characterized in that the body (42) or the holding part (8') are held on the adjustment unit to enable the sliding type element (1) to be fixed with the possibility of adjustment relative to the rail (8, 8 ') in at least one direction. 15. Device according to claim 14, characterized in that the adjustment unit comprises means (60) for vertical adjustment and means for lateral adjustment. 16. The device according to claim 14 or 15, characterized in that the housing (42) is mounted with the possibility of displacement on the installation part (40) for lateral adjustment and is made with the possibility of placement on the installation part (40) using the adjusting element (45). 17. A device according to any one of claims 14 to 16, characterized in that a wedge-shaped adjusting element (61) is provided for vertical adjustment, by means of which the distance between the housing (42) and the element (1) of the retractable type is adjusted. 18. A device according to any one of claims 1 to 17, characterized in that a release element (50) is provided, by means of which it is possible to release the holding part (11, 11') from the locked position on the housing (42). 19. A piece of furniture having at least one drawer (1), which is held for movement by means of at least one output guide (6) and fixed by clamping on the rail (8) of the output guide (6) with device according to any one of claims 1-18.

Images