EP2413740B2 - Retracting device - Google Patents

Description

The invention relates to a feeder, in particular for drawers, sliding doors, hinged doors, etc. with a spring acted upon by a coupling piece, which is adjustable between a retraction position and a raised position.

The invention further relates to a method for operating a drawer.

From the DE 10 2007 008 688 A1 a draw-in device for drawers is known. This has as a coupling piece on a tilting segment, which is movable when opening a drawer against the bias of a spring from a retraction position to a raised position. The tilting segment is moved by a driver, which is mounted on the drawer side. When the tilting segment has reached the deployed position, the driver is released and the drawer can be pulled out further in the freewheel, uninfluenced by the intake device. When the drawer is closed again, it can be freewheeled until the catch is caught by the tilting pad.
Then the previously tensioned spring pulls the drawer into the closed position. In order to prevent a hard impact of the drawer, the retraction movement is braked with a damper.

Increasingly, handleless drawers are desired for design reasons. With the known collection devices such drawers can not always be easily opened, since the drawer is held under the action of the spring in the closed position.

From the WO 01/82749 A2 a draw-in device is known in which a coupling piece is held in the region of a roller guide with two guide rails. The coupling piece is coupled to a spring such that the spring in a raised position applies a bias on the coupling element. With the coupling piece, an activator can then be brought into operative engagement, when the two guide rails are adjusted against each other. The coupling piece is triggered and pulled by the spring in the retraction position. The known retraction device is used to pull drawers in their closed position.

It is an object of the invention to improve the ease of use in a drawer.

This object is achieved with the features of claim 1. According to the invention it is provided that with the coupling piece a Ausschiebeanordnung is indirectly or directly coupled, and that a sliding piece of the Ausschiebeanordnung is adjustable upon actuation of the Ausschiebeanordnung. By means of the Ausschiebeanordnung the drawer can be moved from the closed position into a part-opening position. In this case, the sliding piece is effective, which adjusts the drawer. The partially opened drawer can then be grasped, for example, on the front panel and pulled into the open position.

In this arrangement, a controlled closing movement can be achieved in that a damper dampens the movement of the coupling piece from the raised position to the retracted position.

According to the invention it is provided that the coupling piece is held in the parking position by means of an actuating arrangement (recess, guide, driver) in a parking position, and that in the parking position, the sliding piece is adjustable relative to the coupling piece. This results in a simple structure for the feeder and the operation of the feeder can be advantageously integrated into the movement of the drawer.

In order to obtain a defined sequence of movements in the operation of the Ausschiebeanordnung, it may be provided that the sliding piece between an on and a Ausschubstellung is adjustable.

For a retraction device according to the invention then results in a simple and inexpensive construction, if it is provided that the Ausschiebeanordnung comprises a spring element, and that the spring element biases the sliding piece in the insertion position. The spring element can transmit its spring energy to the sliding piece upon actuation of the Ausschiebeanordnung in the closed position of the drawer. The drawer is thus brought into the partially open position.

A particularly preferred embodiment of the invention may be characterized in that the Ausschiebeanordnung has a Überhubmechanismus to cancel the insertion position. Thus, the feeder can be handled very user-friendly. To trigger the Ausschiebeanordnung, depending on the design of the drawer, for example, be operated only by pressing the drawer front of Überhubmechanismus.

According to the invention it is provided that the Ausschiebeanordnung comprises a carrier, and that in an adjustment of the sliding piece from the Ausschiebstellung in the insertion position, a bolt is effective, which allows an adjustment of the sliding piece relative to the carrier, then a triggered Ausschiebeanordnung in a simple manner be reloaded.

In order to prevent inadvertent release of the Ausschiebeanordnung is a variant of the invention such that the sliding piece secured in the insertion position by means of a locking piece.

The object of the invention is also achieved with a method for operating a drawer or the like, wherein in the closed position of the drawer a Ausschiebeanordnung is triggered, which moves the drawer from the closed position to a partial open position, and then in an adjustment of the drawer the part-opening position, a spring is tensioned, wherein a retraction device according to claim 1 is used.

Here again serves the Ausschiebeanordnung for convenient opening of the drawer from the closed position. If then the drawer off the part-opening position is pulled out, then this pulling movement is used to tension the spring, which is later relaxed when pulling the drawer into the closed position.

This sequence can be realized particularly comfortable by the fact that during the opening of the drawer from the part-opening position a coupling piece is moved from a retraction position to an extended position, and that brought on reaching the extension position the coupling piece in a parking position and the coupling between the Ausschiebeanordnung and the coupling piece is lifted.

The ease of use is then especially in handle-less drawers, etc. high, if it is provided that an overstroke mechanism is actuated to trigger the Ausschiebeanordnung from the closed position.

If it is provided that when a movement of the drawer from an open or partially open position in the direction of the closed position, the Ausschiebeanordnung is brought from its Ausschiebstellung in the insertion position, the Ausschiebeanordnung is brought when closing the drawer in the insertion position, so that this process in The "natural" movement of the drawer is integrated, which is perceived as particularly user-friendly.

For a smooth closing operation, it may be provided that the Ausschiebeanordnung is pulled by the spring in the closed position of the drawer and simultaneously braked by means of a damper.

Figur 1

eine Einzugvorrichtung in perspektivischer Darstellung;

Figur 2

einen Teilschnitt durch die Einzugvorrichtung gemäß Figur 1;

Figur 3

eine Baugruppe der Einzugvorrichtung in Seitenansicht und im Schnitt und

Figuren 4 bis 14

verschiedene Betriebsstellungen der Einzugvorrichtung.

The invention will be explained in more detail below with reference to an embodiment shown in the drawings. Show it:

FIG. 1

a retraction device in perspective view;

FIG. 2

a partial section through the intake device according to FIG. 1 ;

FIG. 3

an assembly of the feeder in side view and in section and

FIGS. 4 to 14

different operating positions of the feeder.

FIG. 1 shows a feeder, as used for example in drawers are used. Also conceivable is the use in other components to be moved, such as doors, flaps, etc. The intake device comprises a connector 29, which may be plate-shaped and on the drawer (not shown) can be fastened.

The feeder also has a housing 10 with screw 11.1, with which a body-side mounting is possible. The housing 10 has two mutually parallel spaced side walls 11, are incorporated in the guides 11.2. In this case, the guides 11.2 have a slot-shaped opening, which terminates in a widened recess 11.21. The guides 11.2 of the two side walls 11 are aligned with each other. To the housing 10 integrally joins a rail 40 which comprises two mutually perpendicular wall elements 41, 43. These wall elements 41, 43 serve to rest on a body side surface. The wall 41 has a detent, which is formed by a series of latching elements 42.

In this case, the latching elements are preferably arranged spaced from one another at the same pitch. The locking elements 42 have a, in the withdrawal direction of the drawer inclined Auslenkschräge 42.2, which merge into a steep locking edge 41.1.

In the FIG. 2 the right part of the feeder is enlarged to better illustrate the operation and shown in section. In the housing 10, a damper 12 is housed. The damper 12 is designed as a fluid damper, in this case as an air damper. The use of an air damper has the advantage that in the event of damage no liquid can escape and contaminate the drawer contents. The damper 12 has a cylinder 12.6, in which a piston 12.2 outgoing from the in FIG. 2 shown insertion position be pulled out. During the return movement of the piston 12.2 he works against an air cushion, the air pressure is continuously reduced. For this purpose, a small opening in an insert 12.3 is provided, through which the compressed air can escape in a controlled manner. At its end facing away from the insert 12.3, the piston rod 12.1 has a head section 12.4, which forms a pivot bearing 12.5. At the pivot bearing 12.5 a coupling piece 13 is pivotally supported in the form of a tilting element. The pivoting movement is in this case in accordance with a perpendicular to the image plane FIG. 2 extending pivot axis. On the coupling piece 13, a spring holder 13.1 is arranged, which holds one end of a spring 14. The other end of the spring 14 is hung on the housing side.

The coupling piece 13 has a trigger 13.2, which is arranged at a distance from the pivot axis. Furthermore, a driver 13.4 is present on the coupling piece 13, which can be formed, for example, on an arm 13.3. With the driver 13.4, a connecting part 30 of a Ausschiebeanordnung 20 is releasably connectable.

Based on FIG. 3 The structure of the Ausschiebeanordnung 20 will be explained in more detail below. As mentioned above, this includes the connecting part 30, whose task is to produce the detachable coupling with the coupling piece 13.

The connecting part 30 has a receptacle 36, in which the driver finds 13.4 place. This receptacle 36 is inserted into an end piece 35 of the connecting part 30. At the end piece 35 is formed as a release part 37, a nose-shaped projection. The end piece 35 is held on a carrier 31, wherein the carrier 31 has a blocking receptacle 32. Furthermore, a bolt 33 is pivotally mounted on the connecting part 20 about a perpendicular to the image axis pivot axis 33.4. The latch 33 forms a blocking section 33.1, a deflection section 33.2 and a stop 33.3.

At the connecting part 30, a plunger 24 is held on the end piece 35 remote from the end 38 via a threaded connection. For this purpose, the plunger 24 is screwed with an external thread 24.1 in a threaded receptacle 38.1 of the connecting part. The plunger 24 carries a locking ring 24.2. This is freely rotatably supported in a bearing receptacle of the plunger 24 in the circumferential direction. The locking ring 24.2 has a latching element which is guided in a control cam 23 of a hollow cylindrical sliding piece 21. In this case, the control cam 23 is incorporated in the form of a groove in the inner wall of the sliding piece 21. The control cam 23 and the locking ring 24.2 of the plunger 24 form a Überhubmechanismus. The operation is similar to a ballpoint pen, wherein the plunger 24 forms the push button of the ballpoint pen. In the sliding piece 21, a spring element 22 is set in the form of a helical spring and secured to the walls of the sliding piece 21 against buckling.

As the FIG. 3 can be further seen, is pivotally mounted on a holder 26 of the sliding piece 21 via a bearing 27 in the locking piece 28. The locking piece 28 has an unlocking piece 28.1 and an arm 28.2. The arm 28.2 carries a blocking element 28.3.

From the FIG. 1 can be seen that the connection 29 is integrally coupled to the sliding piece 21, resulting in a low parts cost.

With reference to the FIGS. 4 to 14 the operation of the feeder device according to the invention will be explained in more detail below.

The FIG. 4 shows the starting position of the feeder, thus as the position in which the drawer is in the closed position. This represents the position in which the coupling piece 13 is in the retracted position. The overstroke mechanism is in a latching position, wherein the latching ring 24.2 is blocked at a latching projection of the control cam 23. The latch 33 is held by means of a Auslenkteils 25 of the slide piece 21 in a raised unlocking position. To release the overstroke mechanism, an overstroke Ü in, for example the drawer front, is introduced in the direction of the actual drawer movement. This excess lift Ü is introduced via the connector 29 into the sliding piece 21. In this case, the sliding piece 21 moves a little distance against the tension of the spring element 22 in the direction of the Über Ü over the plunger 24. As a result, the detent position of the locking ring 24.2 lifted in the control cam 23 and the locking ring 24.2 rotated in the circumferential direction until it in a Linear section of the cam 23 passes. The displaced position of the sliding piece 21 as a result of the overstroke Ü is in FIG. 5 shown. As this illustration shows, the latch 33 is also slightly raised by the deflection part 25 at its deflection section 33.2.

If now the depressed drawer is relieved (transition from FIG. 5 to FIG. 6 ), then due to the released latching connection between locking ring 24.2 and the control cam 23 of the sliding piece 21, the sliding piece 21 from its insertion position ( FIG. 4 ) used in the Ausschubstellung. This adjustment is effected by the spring element 22, since the sliding piece 21 biases biased in the insertion position.

FIG. 6 shows the Ausschubstellung. This movement of the sliding piece 21 is transmitted via the connector 29 in the drawer and thus pushed this into a first partial opening position.

When adjusting the sliding piece 21, the latch 33 is released and he falls due to gravity in the FIG. 6 shown location. The latch 33 may also be supported by a spring in the position as required FIG. 6 to be brought. The locking piece 28 is of a wall element 11.3 of the housing 10 according to FIGS. 4 and 5 held at its Entriegelungsstück 28.1 in an unlocked position, wherein it is prevented that the blocking element 28.3 engages in the blocking receptacle 32. Now, if the sliding piece 21 is adjusted, the locking piece 28 comes out of engagement with the wall element 11.3 and it is by a spring (not shown) in the in FIG. 6 shown position held. In this case, the blocking element 28.3 slides on the top of the carrier 31. If the in FIG. 6 shown position is reached, the drawer can be easily gripped and pulled manually in a part-opening position or fully in the open position. In this case, the coupled with the drawer Ausschiebeanordnung is then moved in the opening direction Ö. Since the coupling piece 13 is coupled to the connecting part 30 and thus to the Ausschiebeanordnung 20, is moved by the coupling piece 13 in the opening direction Ö. In this case, the coupling piece 13 is guided in the guide 11.2. The coupling piece 13 takes the piston rod 12.1 of the damper 11 and thus displaces the piston 12.2. At the same time the spring is stretched. The coupling piece 13 is pulled by the pull-out device 20 until the catch 13.4 guided in the guide 11.2 reaches the region of the cutout 11.21. Due to the eccentric to the pivot axis 12.5 acting spring 14, the coupling piece 12 is tilted about the pivot axis, wherein the driver 13.4 falls into the recess 11.21. He gets out of engagement with the receptacle 36 of the connecting part 20. Since now the connection between the Ausschiebeanordnung 20 and the coupling piece 13 is repealed, the drawer can be pulled out in freewheel on. The coupling piece 13 is in the in FIG. 8 brought display position shown. At the transition of the feeder of FIG. 6 to FIG. 7 hits the latch 33 with its deflection 33.2 at an edge 15 of the housing 10, is raised there and then enters the area of the rail 40 (see FIG. 7 ). In this case, the bolt 33 passes over the individual locking elements 42, wherein it is raised in each case on the deflection bevels 42.2 until it falls behind the locking element 42 with its locking portion 33.1 behind the locking edge 42.1.

The drawer can now be brought into any desired part-opening position or fully raised with the latch 33 remains in engagement with the rail 40.

FIG. 8 shows a partial opening position. Hereinafter, the closing of the drawer will be explained from this position, which also apply to any other part-opening position or the full open position.

The drawer is now pressed in the closing direction S. In the process, the push-out arrangement 20, which is connected to the drawer via the connector 29, is also moved in the closing direction, namely until the catch 33 hits the latching edge 42.1 of the latching element 42 closest to it. There, the latch 33 then blocks the movement of the connecting part 30 (see FIG. 9 ). However, since the sliding piece 21 is adjustable relative to the connecting part 30, the plunger 24 pushes into the sliding piece 21, wherein the spring element 22 is compressed and thus the Ausschiebeanordnung is reloaded. Once the sliding piece 21 in FIG. 10 has reached insertion position, the locking ring 24.2 locked in the control cam 23, so that the sliding piece 21 is secured to the connecting part 30 in the insertion position. At the same time the blocking element 28.3 of the locking piece 28 falls into the blocking receptacle 32. In this way, an additional backup is achieved. This prevents that, for example, as a result of a jerky movement or vibration, the connection to the sliding piece 21 and the connecting part 30 is released. Finally, the displaced sliding piece 21 also lifts the blockage produced by the latch 33. For this purpose, the deflection part 25 of the sliding piece 21 urges the latch 33 away from the latching edge 42. 1 at its deflection slope (see FIG FIG. 10 ).

The drawer can now be moved in freewheel until they reach the FIG. 11 reached. Then the unlocking part 37 of the Ausschiebeanordnung 20 hits the trigger 13.2 and adjusted this and thus the coupling piece 13 about the pivot axis 12.5. In this case, the driver 13.4 is lifted out of the recess 11.21 until it reaches the region of the guide 11.2.

The driver 13.4 then engages in the receptacle 36 of the connecting part 30 and thus provides a coupling between the coupling piece 13 and Ausschiebeanordnung 20 ago (see FIG. 12 ). Thus, the parking position is canceled and the spring 14 can relax. By the spring force released then the Ausschiebeanordnung 20 and with it the drawer is pulled in the closing direction S. In this case, the damper 12 is effective, whereby it brakes the closing movement generated by the spring 14.

As the FIG. 13 shows, the locking piece 28 passes during the pulling movement with its unlocking piece 28.1 to the wall element 11.3. In this case, the blocking element 28.3 is then lifted out of the blocking receptacle 32 and the Ausschiebeanordnung 20 is ready for further opening of the drawer.

FIG. 14 shows the fully retracted position of the retraction device, wherein the coupling piece 13 is in the retracted position and the sliding piece 21 in the inserted position. Then the drawer is completely closed.

Claims (10)

1. Retracting device, in particular for drawers, sliding doors, hinged doors, etc., having a coupling piece (13) which is subjectable to a spring (14) and is displaceable between a retracted position and an extended position, characterized in that a sliding-out arrangement (20) is indirectly or directly couplable with the coupling piece (13), in that a sliding piece (21) of the sliding-out arrangement (20) is displaceable on actuation of the sliding-out arrangement (20), that a damper (12) damps the movement of the coupling piece (13) from the extended position into the retracted position, that the coupling piece (13) is held in a parked position in the extended position by means of a positioning arrangement, in particular a recess (11.21), a guide (11.2) and a carry-along member (13.4)), and in that the sliding piece (21) is displaceable relative to the coupling piece (13) in the parked position
   that the sliding-out arrangement (20) has a carrier (31), and in that, when the sliding piece (21) is displaced from the pushed-out position into the pushed-in position, a catch (33), which allows the sliding piece (21) to be displaced relative to the carrier (31), is active.
2. Retracting device according to Claim 1, characterized in that the sliding piece (21) is displaceable between a pushed-in position and a pushed-out position.
3. Retracting device according to one of Claims 1 or 2, characterized in that the sliding-out arrangement (20) has a spring element (22), and in that the spring element (22) preloads the sliding piece (21) in the pushed-in position.
4. Retracting device according to one of Claims 1 to 3, characterized in that the sliding-out arrangement (20) has an excess-travel mechanism for cancelling the pushed-in position.
5. Retracting device according to one of Claims 1 to 4, characterized in that the sliding piece (21) is secured in the pushed-in position by means of an arresting piece (28).
6. Method for operating a drawer or the like, having a retracting device according to one of Claims 1 to 5, wherein, in the closed position of the drawer, a sliding-out arrangement (20) is released, said sliding-out arrangement (20) moving the drawer from the closed position into a partially open position, and in that, during a displacement of the drawer from the partially open position, a spring (14) is tensioned.
7. Method according to Claim 6, characterized in that, while the drawer is being opened from the partially open position, a coupling piece (13) is moved from a retracted position into an extended position, and in that, when the extended position is reached, the coupling piece (13) is moved into a parked position and the coupling between the sliding-out arrangement (20) and the coupling piece (13) is cancelled.
8. Method according to Claim 6, characterized in that, in order to release the sliding-out arrangement (20) from the closed position, an excess-travel mechanism is actuated.
9. Method according to one of Claims 6 to 8, characterized in that, while the drawer is being moved from an open or partially open position in the direction of the closed position, the sliding-out arrangement (20) is moved from its pushed-out position into the pushed-in position.
10. Method according to one of Claims 6 to 9, characterized in that the sliding-out arrangement (20) is pulled into the closed position of the drawer by means of the spring (14) and is simultaneously braked by means of a damper (12).

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