EP3713448B1 - Device for fixing a drawer-type element, and piece of furniture - Google Patents

Description

The present invention relates to a device for securing a sliding element on a rail of a pull-out slide according to the preamble of claim 1.

the WO 2016/177731 A1 discloses a device for fixing a thrust element, in which a web-shaped holding part can be inserted into a receptacle of a clamping mechanism. In order to frictionally secure the holding part against being pulled out, a self-locking clamping lever is provided in the receptacle, which prevents the holding part from being pulled out of the receptacle again. The holding part can be fixed steplessly through the frictional connection. The pivotable clamping lever requires a comparatively large amount of installation space in order to provide high clamping forces, and the axis of rotation of the clamping lever is exposed to high loads.

In the WO 2016/116288 A1 A pull-out guide is disclosed in which a movable running rail can be aligned in a closed position relative to a stationary guide rail via a positioning aid with an insertion bevel.

It is therefore the object of the present invention to create a device for securing a thrust element which is of compact design and provides high holding forces with a stepless adjustment of the holding part relative to the housing.

This object is achieved with a device with the features of claim 1.

In the device according to the invention, at least one movable clamping body is provided in a receptacle of a housing, which rests on one side against an elongated holding part and on the opposite side against a support wall which is oriented obliquely to the direction of insertion of the holding part. As a result, the holding part can be moved into the receptacle in the pushing-in direction, the clamping body allowing an insertion movement, but securing the holding part against being pulled out. As a result of the support wall, which is oriented obliquely to the direction of insertion, the clamping body is self-locking in the direction of pull opposite to the direction of insertion and increases the frictional forces on the holding part in the event of tensile forces. This allows in a compact design the holding part on the housing can be secured against being pulled out with one or more clamping bodies.

The holding part can preferably be inserted between at least two rotatable clamping bodies which are each supported by a support wall on the side facing away from the holding part. The two support walls can spread wedge-shaped in the pushing-in direction, so that clamping bodies are supported on an inclined support wall on both sides. The angle between the direction of insertion of the holding part and the support wall can be between 1 ° and 20 °, in particular 2 ° to 8 °. As a result, the holding part can be fixed steplessly in any position on the housing.

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. For this purpose, the at least one clamping body can be moved in the pushing-in direction via the release element, for example by sliding or pivoting the release element. As soon as the clamping bodies have been moved slightly in the direction of insertion, the holding part can be easily pulled out of the housing.

In a further embodiment, the clamping of the holding part on the at least one clamping body can be released by moving the clamping body at an angle of approximately 90 ° to the direction of insertion of the holding part. This direction of movement can be provided in addition to the release element in order to provide a second dismantling direction of the drawer element.

For ease of construction, the support walls are preferably formed integrally with the housing. As a result, the clamping mechanism can be provided with only a few components. The clamping bodies can be designed as balls, barrels or cylinders, which are inserted into the receptacle of the housing. The holding part can be designed as a web or rod, preferably made of metal, in order to be able to transmit high holding forces.

For simple assembly, a slot-shaped opening for inserting the holding part can be formed on the housing, wherein the slot-shaped opening can be provided horizontally, vertically and in a different orientation in the assembled position in order to avoid incorrect assembly. The opening can also be provided as a polygonal or round opening.

In order to secure the clamping position, the release element is biased into the clamping position via a spring. According to the invention, the clamping bodies are biased into the clamping position via a spring.

The housing is preferably fixed on a drawer, in particular on a bottom of the drawer, and the holding part is fixed on the pull-out guide or is formed integrally with it. The housing can also be fixed to the frame or formed integrally therewith. Of course, the housing of the clamping mechanism can also be fixed on the pull-out guide, and the holding part on the drawer in order to fix a drawer in the pull-out direction on the pull-out guide.

In a further refinement, the housing or the holding part is held on an adjusting device in order to fix the thrust element so that it can be adjusted relative to the rail in at least one direction. The adjustment device can for example comprise means for height adjustment and / or means for lateral adjustment. For lateral adjustment, the housing can be slidably mounted on a mounting part and can be positioned on the mounting part via an adjusting element such as a knurled nut, a threaded bolt or other adjusting means. For a height adjustment, a wedge-shaped adjusting element can be provided, for example, which is mounted displaceably in order to vary a distance between the thrust element and the housing. The adjusting element can be latched or otherwise fastened in the desired position.

Furthermore, the clamping mechanism according to the invention can be unlocked via an unlocking element. Such an unlocking element can be designed, for example, as a slide which moves the holding part in a direction perpendicular to the direction of insertion into the housing in order to disengage the holding part from the clamping bodies. For this purpose, the unlocking element can be designed as a wedge-shaped slide or pivotable lever.

Figur 1

eine perspektivische Ansicht eines Schubkastens, der über eine erfindungsgemäße Vorrichtung an einer Auszugsführung fixiert ist;

Figur 2

eine Ansicht des Schubkastens der Figur 1 bei der Montage;

Figur 3

eine Ansicht des Schubkastens der Figur 1 in der montierten Position;

Figur 4

eine Ansicht des Schubkastens der Figur 1 bei der Montage mit Einblick in das Gehäuse;

Figur 5

eine Ansicht des Schubkastens der Figur 4 in der montierten Position mit Einblick in das Gehäuse;

Figuren 6A und 6B

zwei perspektivische Explosionsdarstellungen des Klemmmechanismus der erfindungsgemäßen Vorrichtung;

Figuren 7A und 7B

zwei Ansichten des Klemmmechanismus bei der Montage des Halteteils;

Figur 8

eine Draufsicht auf den Klemmmechanismus mit montiertem Halteteil;

Figur 9

eine perspektivische Ansicht eines weiteren Ausführungsbeispiels einer Vorrichtung zum Festlegen eines Schubelementes;

Figur 10

eine perspektivische Ansicht eines Möbels mit einem Schubelement, der über eine erfindungsgemäße Vorrichtung an einer Auszugsführung fixiert ist,

Figur 11

eine Ansicht des Möbels der Figur 10 bei der Montage;

Figur 12

eine perspektivische Ansicht einer Vorrichtung zum Festlegen des Schubelementes der Figur 10;

Figur 13

eine Ansicht der Auszugsführung mit einem Halteteil zur Montage des Schubelementes der Figur 10;

Figur 14

eine perspektivische Ansicht eines weiteren Ausführungsbeispiels einer erfindungsgemäßen Vorrichtung mit einer Verstelleinrichtung;

Figur 15

eine perspektivische Ansicht der Vorrichtung der Figur 14;

Figur 16

eine perspektivische Ansicht der Vorrichtung der Figur 14;

Figur 17

eine perspektivische Ansicht der Vorrichtung der Figur 14 mit einer anderen Höheneinstellung;

Figur 18

eine perspektivische Ansicht der Vorrichtung der Figur 14, bei dem ein Halteteil an dem Gehäuse montiert ist, und

Figur 19

eine perspektivische Ansicht der Vorrichtung der Figur 18 beim Entriegeln der Vorrichtung.

The invention is explained in more detail below on the basis of several exemplary embodiments with reference to the accompanying drawings. Show it:

Figure 1

a perspective view of a drawer which is fixed to a pull-out guide via a device according to the invention;

Figure 2

a view of the drawer of the Figure 1 during installation;

Figure 3

a view of the drawer of the Figure 1 in the assembled position;

Figure 4

a view of the drawer of the Figure 1 during assembly with a view of the housing;

Figure 5

a view of the drawer of the Figure 4 in the assembled position with a view of the housing;

Figures 6A and 6B

two perspective exploded views of the clamping mechanism of the device according to the invention;

Figures 7A and 7B

two views of the clamping mechanism during assembly of the holding part;

Figure 8

a plan view of the clamping mechanism with mounted holding part;

Figure 9

a perspective view of a further embodiment of a device for fixing a thrust element;

Figure 10

a perspective view of a piece of furniture with a sliding element which is fixed to a pull-out guide by means of a device according to the invention,

Figure 11

a view of the furniture of the Figure 10 during installation;

Figure 12

a perspective view of a device for fixing the thrust element of Figure 10 ;

Figure 13

a view of the pull-out guide with a holding part for mounting the push element of the Figure 10 ;

Figure 14

a perspective view of a further embodiment of a device according to the invention with an adjusting device;

Figure 15

a perspective view of the device of FIG Figure 14 ;

Figure 16

a perspective view of the device of FIG Figure 14 ;

Figure 17

a perspective view of the device of FIG Figure 14 with a different height setting;

Figure 18

a perspective view of the device of FIG Figure 14 , in which a holding part is mounted on the housing, and

Figure 19

a perspective view of the device of FIG Figure 18 when unlocking the device.

A sliding element 1 is designed as a drawer and comprises a base 2 and two side walls 3, which connect a front wall 5, in front of which a decorative front panel can be placed if necessary, with a rear wall 4. The push element 1 can be used in a piece of furniture or household appliance and is held in a movable manner via pull-out guides 6, only one of two pull-out guides 6 being shown in the drawings.

In order to fix the push element 1 on a pull-out guide 6, a clamping mechanism 10 is provided which comprises a housing 12 which is fixed to the base 2 of the push element 1. The clamping mechanism 10 also has a web-shaped holding part 11 which is fixed to a movable running rail 8 of the pull-out guide 6 or is formed integrally with it. The running rail 8 is mounted on a guide rail 7 via rolling elements, which can be fixed to a body of a piece of furniture or a household appliance. Optionally, a center rail extending the extension can be provided between the running rail 8 and the guide rail.

As in Figure 2 is shown, the housing 12 is located in the area of a front wall 5 of the thrust element 1 to which a front panel is attached can, and the elongated holding part 11 is aligned parallel to the direction of movement of the running rail 8. An adjustable holding device 9 is provided in the rear region of the running rail 8 and the clamping mechanism 10 of the device according to the invention is thus located in the front region of the push element 1, with FIG Figure 2 the position before assembly and in Figure 3 the position after assembly is shown.

In the Figures 4 and 5 the assembly of the holding part 11 on the housing 12 is shown with the housing open. The housing 12 comprises a receptacle 15 in which clamping bodies 20 are provided, which in the exemplary embodiment shown are designed as balls, in particular as steel balls. In this example, four clamping bodies 20, two of which are arranged one above the other, are provided. A different number of clamping bodies 20 can also be provided. The clamping bodies 20 can, however, also be designed as barrels, cylinders or other rotating bodies. The holding part 11 is simply mounted by being pushed into the housing 12 between two clamping bodies 20 which, in a self-locking manner, prevent the holding part 11 from being pulled out after assembly. The clamping bodies 20 can also be provided in the housing 12 only on one side of the holding part 11. The clamping bodies 20 act on the holding part 11 from one side and a wall is provided on the opposite side against which the holding part 11 rests.

The clamping mechanism 10 is in the Figures 6A and 6B shown with all items. The housing 12 comprises a chamber-shaped receptacle 15 which has a front wall 16 with a slot-shaped opening 17 through which the web-shaped holding part 11 can be inserted. Furthermore, a rear wall 19 is provided, and the supporting walls 18 connecting the front wall 16 and the rear wall 19, which spread out in a wedge shape from the front wall 16 to the rear wall 19. The angle of the support walls 18 to the direction of insertion of the holding part 11 is preferably in a range between 1 ° to 20 °, in particular 2 ° to 8 °.

The housing 12 has outwardly protruding arms 13 in which assembly openings 14 are recessed in order to be able to fix the housing 12 to a further component, such as a base 2 or a side wall 3 of a drawer.

In the receptacle 15 there are several clamping bodies 20 which, in the exemplary embodiment shown, are designed as balls, the holding part 11 being insertable between two clamping bodies 20 in each case.

In order to be able to release the clamping mechanism 10 from a clamping position, a release element 22 is provided which is biased into a clamping position by a spring 21. For this purpose, the spring 21 is supported on one side on the rear wall 19 and on the opposite side on a wall 26 of the release element 22, a receiving opening 27 for fixing one end of the spring 21 being formed in the wall 26. The release element 22 is thus biased towards the front wall 16 by the spring 21. At the same time, the clamping bodies 20 can be held and guided in the release element 22, which would ensure that the clamping position is not inadvertently released.

The release element 22 has two webs 23 which protrude into the receptacle 15 and which bear against the clamping bodies 20. The release element 22 can be moved in the pushing-in direction against the force of the spring 21, as a result of which the clamping bodies 20 are also moved slightly in the pushing-in direction of the holding part 11 via the webs 23 in order to release the clamping of the holding part 11 between the clamping bodies 20. Due to the wedge-shaped spreading support walls 18, the clamping is released when the clamping body 20 moves in the direction of insertion. The gap that is formed by the webs 23 can extend to the top of the release element 22. The opening 17 can also be designed to be open in the direction of the release element 22. In this case, the clamping bodies can be clamped by moving them in the direction of the open areas. The release movement of the holding part 11 is thus transverse to the joining direction of the holding part 11.

The release element 22 overlaps the housing 12 and has two guide elements 24 which overlap two lateral arms 25 on the housing 12. The release element 22 can be moved slightly with respect to the housing 12 via the guide. The guide elements 24 can be designed in the shape of a hook and engage under the arms 25 on the housing 12, so that the release element 22 is secured against lifting.

In Figure 7A the clamping mechanism 10 is shown prior to the assembly of the holding part 11. The holding part 11 is inserted through the slot-shaped opening 17 in the front wall 16 and presses the clamping bodies 20 apart and in the direction of insertion towards the rear wall 19. The holding part 11 can be in the Housing 12 can be pushed in until the desired position is reached. The holding part 11 is then secured against being pulled out and fixed in a force-locking manner. This position is in Figure 7B shown.

The assembled position without the release element 22 is in Figure 8 shown. Clamping bodies 20 rest on opposite sides of the holding part 11 and are supported on the side facing away from the holding part 11 on an inclined supporting wall 18. If tensile forces are applied to the holding part 11, the clamping forces increase via the clamping bodies 20 and the support walls 18 and thus prevent it from being pulled out. To release the clamping mechanism 10, the release element 22 can move the clamping bodies 20 in the direction of insertion in the direction of the rear wall 19, so that the clamping forces can then be released and the holding part 11 can be pulled out.

In the exemplary embodiment shown, four clamping bodies 20 are used in order to secure the web-shaped holding part 11 on the housing 12. It is also possible to provide only two clamping bodies 20 or even one clamping body 20 if the holding part 11 is supported on a wall of the housing 12. In addition, the geometry of the clamping bodies 20 can be varied, which can also be aligned in a wedge shape, for example. The holding part 11 can also be rod-shaped, tubular or with a different geometry instead of web-shaped.

In Figure 9 Another exemplary embodiment of a device is shown in which, to release the clamping mechanism 10 on the housing 12, no displaceable release element 22, but a release element in the form of a pivotable lever 22 'is used. The lever 22 ′ is rotatably mounted on the housing 12 or the bottom 2 of the pushing element 1 and can move the clamping bodies 20 slightly in the pushing-in direction in order to release the clamping of the holding part 11. The slot 28 through which the holding part can be moved out of the housing transversely to the direction of insertion without actuating the release lever can also be seen on the housing 12.

In Figure 10 a perspective view of a piece of furniture with a furniture body 30 is shown, on which a sliding element 1 is fixed to a pull-out guide 6. A clamping mechanism 10 ′ for fixing the thrust element 1 is provided adjacent to a front wall 5 designed as a front panel. For this purpose, a housing 12 'is fixed to a base 2' of the thrust element 1 ( Figure 11 ). The housing has a slot-shaped opening 17 'into which a web-shaped holding part 11 'can be inserted. The mounting direction is in the longitudinal direction of the pull-out guide 6. The holding part 11 'is designed as an angled sheet metal which is fixed, in particular welded, to the running rail 8 of the pull-out guide 6.

In the Figures 12 and 13th the clamping mechanism 10 'is shown in detail. The housing 12 'is located laterally next to the running rail 8, on which the web-shaped holding part 11' is fixed. Clamping bodies are located in the housing 12 ', as has already been explained for the previous exemplary embodiments. The clamping mechanism 10 ′ can be released in this exemplary embodiment in that the thrust element 1 is raised, that is to say is moved essentially perpendicular to the assembly direction. The clamping bodies in the housing 12 'cause a blocking against the pulling out of the holding part 11' in the longitudinal direction of the pull-out guide 6, but only small clamping or frictional forces act perpendicular to this direction, which can be overcome during dismantling. When the thrust element 1 is raised, the web-shaped holding part 11 'can thus be passed down through the slot-shaped opening 17'.

In the Figures 14 to 16 A modified device for securing a thrust element is shown, in which a housing 42 is provided which, as in the previous exemplary embodiments, has an opening 17 for inserting a holding part in order to fix the holding part in a clamping manner via clamping bodies 20. The housing 42 has a slot-shaped opening perpendicular to the direction of insertion, so that the holding part can be removed from the housing 42 perpendicular to the direction of insertion.

The housing 42 is held on an adjusting device, by means of which a height and lateral adjustment can be made. For this purpose, the housing 42 is provided on a slide 41 which is slidably mounted on a mounting part 40. The mounting part 40 has guide means for this purpose, for example bent wall sections and / or a guide bolt 44 which extends through an elongated hole 43 on the slide 41. Other guide means can also be provided in order to mount the slide 41 on the mounting part 40 so as to be displaceable perpendicular to the insertion direction of the holding part. In order to be able to carry out a lateral adjustment, an adjusting element 45 in the form of a knurled nut is provided, which is rotatably but axially immovable on the mounting part 40. For this purpose, outer webs 46 and at least one inner web 47 are provided on the mounting part 40, which the adjusting element 45 in the axial direction, but allow a rotary movement. The adjustment element 45 is equipped with a threaded bolt which engages in a threaded opening on a block 49 of the slide 41, so that the slide 41 and thus also the housing 42 is linearly adjusted relative to the mounting part 40 by rotating the adjustment element 45. This also changes the position of a push element 1, on which the assembly part 40 is fixed, and a running rail of a pull-out guide that is fixed directly or indirectly to the housing 42.

In addition, the adjustment device also has means 60 for height adjustment. The means 60 for height adjustment are designed as slides with a wedge-shaped adjusting element 61, which is held displaceably on an arm 65 of the adjusting element 61. The wedge-shaped adjusting element 61 has a stop 62 which limits the sliding movement relative to the slide 41. A toothing 63 is provided on the slide 41, which engages with at least one projection or tooth on the means 60 for height adjustment, so that the wedge-shaped adjustment element 61 can be locked in different positions on the slide 41.

Like the view of Figure 16 shows, the mounting part 40 can be fixed to an underside of a thrust element 1, for example by screws that reach through the fastening openings 48. By moving the wedge-shaped adjusting element 61, the distance between a bottom of the sliding element and the housing 42 can be changed, which leads to a height adjustment of the sliding element relative to the pull-out guide. Instead of a wedge-shaped adjusting element 61, the means for height adjustment can also be formed by other mechanisms, for example eccentrics, threaded bolts or other adjusting means.

The device for fixing a thrust element also has an unlocking element 50 which is held displaceably on the arm 65 of the slide 41.

In Figure 18 a rail 8 ′ of a pull-out guide is fixed to the housing 42. It is of course also possible to fix a holding part 11 or 11 'on the housing 42, which is firmly connected to a rail of a pull-out guide. The rail 8 ′ engages in the opening 17 of the housing 42 and is fixed in a clamping manner via the clamping bodies 20. If the rail 8 ′ is now to be unlocked from the clamping position, the unlocking element 50 on the arm 65 moved like this in Figure 19 is shown. The wedge-shaped contact surface of the unlocking element 50 presses the rail 8 ′ upwards, so that the rail 8 ′ is removed from the housing 42 essentially perpendicular to the insertion direction. To fasten the rail 8 ′ again, the unlocking element 50 can be moved back again and the rail 8 ′ inserted into the housing 42 in the longitudinal direction.

List of reference symbols

1

Thrust element

2

floor

3

Side wall

4th

Back wall

5

Front wall

6th

Drawer slide

7th

Guide rail

8th

Running track

8th'

rail

9

Holding device

10, 10 '

Clamping mechanism

11, 11 '

Holding part

12, 12 '

casing

13th

boom

14th

Assembly opening

15th

recording

16

Front wall

17, 17 '

opening

18th

Retaining wall

19th

Back wall

20th

Sprags

21

feather

22nd

Release element

22 '

lever

23

web

24

Guide element

25th

boom

26th

Wall

27

Receiving opening

28

slot

30th

Furniture body

40

Assembly part

41

Slider

42

casing

43

Long hole

44

Guide pin

45

Adjustment element

46

web

47

web

48

Mounting hole

49

block

50

Unlocking element

60

Means for height adjustment

61

Adjustment element

62

attack

63

Interlocking

65

boom

Claims (18)

1. A device for fixing a drawer-type element (1) on a rail (8) of a pullout guide (6), having a retaining part (11, 11') and a clamping mechanism (10, 10'), which comprises a housing (12, 12', 42) having a receptacle (15), into which the oblong retaining part (11, 11') is insertable to fix it on the housing (12, 12', 42), whereby at least one movable clamping body (20), which presses on one side on the retaining part (11, 11') and on the opposing side on a support wall (18) of the housing (12, 12', 42), which is aligned inclined in relation to the insertion direction of the retaining part (11, 11'), is provided in the receptacle (15), characterized in that clamping bodies (20) are pre-tensioned via a spring (21) in a clamping position.
2. The device according to Claim 1, characterized in that an angle between the retaining part (11, 11') and the support wall (18) is less than the permissible friction angle in dependence on the utilized materials of the retaining part (11, 11'), the movable clamping body (20), and the support wall (18).
3. The device according to Claim 1 or 2, characterized in that the retaining part (11, 11') is insertable between at least two rotatable clamping bodies (20), which are each supported by a support wall (18) on the side facing away from the retaining part (11, 11'), whereby two support walls (18) are provided, which spread out in particular in a wedge shape in the insertion direction.
4. The device according to any one of the preceding claims, characterized in that the angle between the insertion direction of the retaining part (11) and the support wall (18) is between 1° and 20°, in particular 2° to 8°.
5. The device according to any one of the preceding claims, characterized in that a disengagement element (22, 22') is provided, by means of which the clamping of the retaining part (11) on the at least one clamping body (20) can be disengaged, wherein the clamping bodies (20) are movable in the insertion direction via the disengagement element (22, 22').
6. The device according to any one of the preceding claims, characterized in that the support walls (18) are integrally formed with the housing (12).
7. The device according to any one of the preceding claims, characterized in that the clamping bodies (20) are formed as balls, barrels, or cylinders.
8. The device according to any one of the preceding claims, characterized in that the retaining part (11, 11') is formed as a web.
9. The device according to any one of the preceding claims, characterized in that a slotted opening (17, 17') for inserting the retaining part (11, 11') is formed on the housing (12).
10. The device according to Claim 5, characterized in that the disengagement element (22, 22') is pre-tensioned in a clamping position via a spring (21).
11. The device according to any one of the preceding claims, characterized in that the housing (12, 12', 42) is arranged on a drawer (1) or integrally on a drawer or on a pullout guide (6) or integrally on a pullout guide (6) and the retaining part (11) is arranged on a pullout guide (6) or integrally on a pullout guide (6) or on a drawer (1) or integrally on a drawer.
12. The device according to any one of the preceding claims, characterized in that the clamped connection can be canceled out by a relative movement between clamping bodies (20) and retaining body (11) transversely to the insertion direction of the retaining part (11).
13. The device according to Claim 12, characterized in that the housing comprises an opening (17') for the retaining part (11'), into which the retaining part (11') is insertable in the insertion direction and is extendable transversely to the insertion direction.
14. The device according to any one of the preceding claims, characterized in that the housing (42) or the retaining part (8') is held on an adjustment unit to be able to fix the drawer-type element (1) adjustably in relation to the rail (8, 8') in at least one direction, whereby the adjustment unit comprises in particular means (60) for vertical adjustment and means for lateral adjustment.
15. The device according to Claim 14, characterized in that the housing (42) is displaceably mounted on an installation part (40) for a lateral adjustment and is positionable via an adjustment element (45) on the installation part (40).
16. The device according to any one of Claims 14 or 15, characterized in that a wedge-shaped adjustment element (61) is provided for a vertical adjustment, by means of which a distance between the housing (42) and the drawer-type element (1) is adjustable.
17. The device according to any one of the preceding claims, characterized in that an unlocking element (50) is provided, by means of which the retaining part (11, 11') is unlockable from a position locked on the housing (42).
18. A piece of furniture having at least one drawer (1), which is held movably via at least one pullout guide (6), and is fixed in a clamping manner on a rail (8) of the pullout guide (6) via a device according to any one of the preceding claims.

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