DE102011000724A1 - Device for locking relatively movable parts - Google Patents

Abstract

A device for locking parts that can move relative to one another, in particular sliding elements (3) or flaps on a body (2), comprises at least one pivotably mounted clamping element (30), a web-shaped holder (16) that is positioned between the clamping element (30) and a counter bearing (33) is movable in a first direction (x) and is prevented from moving in a second direction (y) opposite to the first direction (x) by the clamping element (30), the fixation of the holder (16) in the second Direction (y) is designed to be self-locking and the holder (16) on the clamping element (30) can be unlocked via an actuating element (38, 40).

Description

The present invention relates to a device for locking relatively movable parts, in particular thrust elements or flaps on a furniture body.

The DE 20 2005 018 504 discloses a drawer slidably mounted in a housing, in which a locking via a pivotally mounted locking lug takes place, which is locked in the closed position. As a result, opening the drawer is prevented without unlocking. In this locking mechanism is disadvantageous that the locking lug must be adjusted exactly to the closed position to ensure a secure locking and to avoid rattling noises. With mounting tolerances, however, it can lead to problems with locking or with such noises.

The DE 20 2004 003 027 discloses a device for locking a drawer to a body, wherein a lock via a spring-elastic strap, which is arranged on the drawer and can be locked. Again, there is the problem that the bracket and the locking means must be aligned exactly to each other and also the locking by the resilient strap requires a certain force that is not applied, for example via a collection device.

It is therefore an object of the present invention to provide a device for locking relatively movable parts that allows installation tolerances and also allows easy locking of the movable part in the closed position.

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

According to the invention, the device comprises a pivotally mounted clamping element and a web-shaped holder, wherein the web-shaped holder is movable between the clamping element and an abutment in a first direction and prevented from moving in a second direction opposite to the first direction direction, wherein the fixation of the holder is formed in the second direction self-locking and can be unlocked via an actuating element of the holder on the clamping element. As a result, the clamping element can also be fitted with tolerance relative to the web-shaped holder since a locking takes place only in the closed position. The closed position can set the holder in different positions on the clamping element, whereby a tolerance compensation is made possible. In addition, a secure locking over the pivotally mounted clamping element is ensured by the blockage is self-locking in the opening direction.

For example, the clamping element is rotatably mounted as a clamping eccentric about an axis and a contact surface between clamp eccentric and holder is arranged offset in the first direction to the axis. When the retainer is now to be moved in the second direction relative to the clamp eccentric to the clamp eccentric, the clamp eccentric is pressed against the holder and the abutment so as to provide a self-locking lock. For particularly high holding forces locking means, ribs or teeth may be formed on the clamp eccentric and / or the holder, which then ensure a lock on the contact surface.

Alternatively, the clamping element may also be formed as a resilient tongue which engages in the notches of the web-shaped element.

According to a further embodiment, the clamping element can be raised via the actuating element of the holder. This can be done after lifting the clamping element easy unlocking. By way of the actuating element, preferably two spaced-apart clamping elements can be movable. For this purpose, the actuating element may be formed as a rod which is inserted at opposite ends in a recess on a clamping element. As a result, by lifting the rod, which is arranged for example within a recessed grip of a drawer, unlocking on opposite sides take place simultaneously.

Alternatively, the actuating element may be formed as a grip element projecting from the clamping element. In a drawer can then protrude two spaced handle elements that must then be actuated by the user to take off the associated pusher. As a result, incorrect operations are reliably avoided.

Preferably, the clamping element is mounted on a housing which is fixed to a front panel of a movable part. The web-shaped holder can then be fixed to a side wall of a body. An assembly of the web-shaped holder on the movable part is also conceivable. The clamping element would then be mounted on the fixed furniture part, for example the body.

The locking device is used for example for push elements for furniture or workshop carts. Further examples of use of the device for locking are a possible use in caravans, motorhomes, Vehicles, ships, yachts, household appliances, laboratory furniture, medical furniture, aircraft, etc. In particular, at least one device for locking are provided on a displaceably mounted in a body drawer, which is slidably mounted on opposite sides via a pullout guide. In this case, the drawer is preferably movable via a retraction device into the closed position, wherein the force of the retraction device is sufficient to move the holder between the clamping element and the abutment.

The invention will be explained in more detail below with reference to two embodiments with reference to the accompanying drawings. Show it:

1 a perspective view of a body with a drawer, on which a locking device according to the invention is provided;

2 a perspective view of a pullout guide for storage of the drawer of 1 ;

3 a detailed perspective view of the pullout guide;

4 a perspective view of the device for locking the drawer of 1 ;

5 to 10 several views of the device for locking in different positions, and

11 to 14 a plurality of views of a second embodiment of a device for locking relatively movable parts.

In 1 is a workshop car 1 pictured, a body 2 has, at the multiple drawers 3 are slidably mounted. The drawer 3 has a floor 4 for storing objects and a front panel 5 on. At the front panel 5 is a handle bar 6 arranged, which is open at the bottom and in which an actuating element is arranged. The drawer 3 is held on opposite sides movable over drawer guides on which side frames 7 of the drawer are fixed.

In the 2 and 3 is an inner sidewall 8th of the body 2 represented, on the one pullout guide 9 is fixed. The pullout guide 9 has one on the side wall 8th fixed guide rail 10 as well as a movable track 11 on, between which one or more middle rails can be arranged. The guide rail 10 is about a holder 50 on the side wall 8th fixed, with this the holder 50 with a projection in a recess 12 on the side wall 8th intervenes.

To a drawer 3 in a closed position in the body 2 To lock, a device for locking is provided, which is a web-shaped holder 16 includes, over a mounting element 15 on the side wall 8th is fixed. On the side wall 8th are for this two spaced-apart recesses 13 and 14 recessed, which are formed substantially rectangular.

In 4 is the device for locking the drawer 3 on the body 2 shown. The bar-shaped holder 16 is on the mounting element 15 kept that a corpus 19 with a groove 18 having. In the groove 18 becomes an edge of the sidewall 8th at the recess 13 inserted. Furthermore, an angled spring bar 20 provided, with one end 21 in the recess 14 on the side wall 8th can lock. This allows the holder 16 by plugging in the side wall 8th to be assembled.

The device for locking relatively movable parts further comprises a clamp eccentric 30 that is on an axis 31 is rotatably mounted. The clamp eccentric 30 has an arcuate contact surface 32 on, which adjacent to a plate-shaped abutment 33 is arranged. The counter bearing 33 is on a case 35 formed on which integrally a projection 36 for mounting the clamp eccentric 30 is trained.

As in 5 is shown, is the housing 35 with the rotatably mounted clamp eccentric 30 in the front panel 5 and is relative to the web-shaped holder 16 movable, on the body 2 is fixed. A closing movement becomes a point 17 the web-shaped holder 16 between the clamp eccentric 30 and the counter bearing 33 emotional. It owns the counter bearing 33 a rounded starting slope 34 for the holder 16 , During a closing movement of the eccentric 30 in a simple way around the axis 31 be pivoted so that the web-shaped holder 16 the necessary space between the clamp eccentric 30 and the counter bearing 33 receives. The force for the closing movement can also be applied via a feed device, by means of the drawer 3 is movable in a closed position. The collection device may comprise a damper.

In the 7 and 8th the device is shown in a closed position, in which the clamp eccentric 30 and the counter bearing 33 in a first direction x over the holder 16 was moved, the holder 16 is thus between clamp eccentric 30 and counter bearing 33 inserted. Due to the eccentric arrangement of the axle 31 is the clamp eccentric 30 due to the weight with the contact surface 32 on the holder 16 on. The bar-shaped holder 16 indicates at the to the clamp eccentric 30 turned upper side a corrugation with a variety of protruding teeth or ribs. At the clamp eccentric 30 are also on the to the holder 16 facing side on the contact surface 32 Teeth formed, so that particularly high holding forces are obtained in the lock. The contact surface 32 is opposite to the direction x offset to the axis 31 of the clamp eccentric 30 arranged. Now a pulling force on the drawer 3 applied to move it in the opening direction, the clamp eccentric rotates 30 slightly in the direction of rotation d, clockwise ( 8th ), and thus presses on the holder 16 and the counter bearing 33 , This is the drawer 3 self-locking held by the device for locking in the closed position.

As in the 9 and 10 is shown, for unlocking an actuator 38 moved, which is designed as a rod and in the recessed grip 6 on the front panel 5 is arranged The actuating element 38 is on opposite sides each in a recess 37 a clamp eccentric 30 arranged so that over the actuator 38 at the same time a release of the two clamp eccentric 30 can be carried out. By lifting the actuator 38 rotates the clamp eccentric 30 around the axis 31 , whereby the contact surface 32 from the holder 16 is raised. In this position, the drawer 3 can be easily pulled out, as the holder 16 no longer at the clamp eccentric 30 is locked. The drawer 3 can now together with the clamp eccentric 30 to be moved in the direction of y.

In the 11 to 14 a further embodiment of a device for locking relatively movable parts is shown, are provided in the same components as in the previous embodiment with the same reference numerals. The clamp eccentric 30 is about an axis 31 rotatably mounted and has a modified actuator 40 on, which is designed as a protruding handle element. It is for each clamp eccentric 30 a grip element 40 provided to the clamp eccentric 30 around the axis 31 to pivot.

In the 11 and 12 is the clamp eccentric 30 with the housing 35 shown in an open position in which no holder 16 between the clamp eccentric 30 and the counter bearing 33 is arranged. Will a drawer 3 to which the case 35 is set, moved to the closed position, engages the web-shaped holder 16 between the clamp eccentric 30 and the counter bearing, as in 13 is shown.

To unlock the drawer from the closed position, the user must open the clamp eccentric 30 over the handle element 40 raise, as in 14 is shown. In this position, the drawer 3 be moved back in the opening direction by unlocking. The unlocking must simultaneously on opposite sides of the drawer 3 take place when a corresponding device for locking relatively movable parts is arranged on both sides.

In the embodiment shown are on the contact surface 32 of the clamp eccentric 30 and on the web-shaped holder 16 Ribs designed to increase the holding forces. Of course it is also possible, a different profiled surface on the clamp eccentric 30 or the holder 16 to provide a firm lock.

LIST OF REFERENCE NUMBERS

1

Workshop trolley

2

corpus

3

drawer

4

ground

5

front panel

6

handle bar

7

side frames

8th

Side wall

9

pull-out guide

10

guide rail

11

runner

12

recess

13

recess

14

recess

15

mounting element

16

holder

17

top

18

groove

19

corpus

20

spring bar

21

The End

30

eccentric clamp

31

axis

32

contact surface

33

thrust bearing

34

starting slope

35

casing

36

head Start

37

recess

38

actuator

40

actuator

50

holder

x

first direction

y

second direction

d

direction of rotation

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202005018504 [0002]
• DE 202004003027 [0003]

Claims (11)

Device for locking relatively movable parts, in particular pushers ( 3 ) or flaps on a body ( 2 ), comprising at least one pivotally mounted clamping element ( 30 ), a web-shaped holder ( 16 ), which between the clamping element ( 30 ) and an abutment ( 33 ) is movable in a first direction (x) and at a movement in a second to the first direction (x) opposite direction (y) by the clamping element ( 30 ), the fixation of the holder ( 16 ) in the second direction (y) is self-locking and upper an actuating element ( 38 . 40 ) the holder ( 16 ) on the clamping element ( 30 ) is unlockable. Apparatus according to claim 1, characterized in that the clamping element as a clamping eccentric ( 30 ) is executed. Device according to claim 2, characterized in that the clamping eccentric ( 30 ) about an axis ( 31 ) is rotatably mounted and a contact surface ( 32 ) between clamp eccentric ( 30 ) and holders ( 16 ) in the first direction (x) offset to the axis ( 31 ) is arranged. Apparatus according to claim 1, 2 or 3, characterized in that on the clamp eccentric ( 30 ) and / or the holder ( 16 ) Locking means, ribs or teeth is designed for locking. Device according to one of the preceding claims, characterized in that the clamping eccentric ( 30 ) via the actuating element ( 38 . 40 ) of the holder ( 16 ) is liftable. Device according to one of the preceding claims, characterized in that via an actuating element ( 38 ) two spaced clamp eccentrics ( 30 ) are movable. Device according to claim 5, characterized in that the actuating element ( 38 ) is formed as a rod which at opposite ends in a recess ( 37 ) on the clamp eccentric ( 30 ) is inserted. Device according to one of claims 1 to 4, characterized in that the actuating element ( 40 ) than from the clamp eccentric ( 30 ) projecting handle element is formed. Device according to one of the preceding claims, characterized in that the clamping eccentric ( 30 ) on a housing ( 35 ) is mounted on a front panel ( 5 ) of a movable part is fixed. Device according to one of the preceding claims, characterized in that the web-shaped holder ( 16 ) on a side wall ( 8th ) of a carcass ( 2 ) is fixed. In a corpus ( 2 ) displaceably mounted thrust element ( 3 ), which on opposite sides via a pullout guide ( 9 ) is slidably mounted, characterized in that the thrust element ( 3 ) via a device according to one of the preceding claims on the body ( 2 ) is lockable.

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