EP2552282A1

EP2552282A1 - Push-out apparatus

Info

Publication number: EP2552282A1
Application number: EP11712524A
Authority: EP
Inventors: Patrick Freiheit
Original assignee: Paul Hettich GmbH and Co KG
Current assignee: Paul Hettich GmbH and Co KG
Priority date: 2010-04-01
Filing date: 2011-03-30
Publication date: 2013-02-06
Also published as: WO2011121025A1; DE102010016297A1; CN102821653A; TW201143678A

Abstract

A push-out apparatus, in particular for moving furniture parts, for example for a pull-out guide (2) for a drawer (1), comprises a latching mechanism by means of which a first driver (8) can be latched in a closed position by virtue of the force of a first spring (13), wherein the first driver (8) can be moved along a guide (9) and can be coupled to an activator (6) which is connected to a running rail (5) of a pull-out guide (2). The latching mechanism can be unlocked in order to move the driver (8) in the opening direction together with the activator (6), wherein at least a second driver (10) is provided, said second driver being prestressed in the opening direction by means of a second spring (14) and it being possible for said second driver to be moved along a guide (11) between two end positions in order to engage with an activator (6, 60), which is connected to a moving furniture part, at a distance from the closed position.

Description

ejector

The present invention relates to an ejection device, in particular for movable Möbelteiie example, a drawer slide for a drawer, with a latching mechanism by means of a first driver by the force of a first spring in a Schiießposition is latched, the first driver along a guide movable is and can be coupled with an activator connected to a running rail of a pullout guide, wherein the latching mechanism can be unlocked to move the driver together with the activator in the opening direction.

EP 1 845 821 discloses a device for opening and closing drawers in which the drawer is held in a closed position by means of a latching mechanism. When the latching mechanism is unlocked, a driver biased by a spring pushes the running rail in the opening direction, wherein the driver is connected to the latching mechanism and can be decoupled from the running rail. In such ejection devices, there is the disadvantage that they are designed for a predetermined weight of a drawer, so that only a very slow opening occurs at high weight forces. If the spring for biasing particularly high spring forces, the closing and locking of the drawer for the user can be felt to be difficult, which is also disadvantageous because the high

Closing forces must be applied shortly before the closed position. It is therefore an object of the present invention to provide a discharge device, with the larger forces can be provided in the opening direction, but only small forces for unlocking the locking mechanism are required. This object is achieved with an ejection device with the features of claim 1.

According to the invention, in addition to the first driver at least a second driver is provided, which is biased by a second spring in the opening direction and is movable between two end positions along a guide spaced from the closed position in engagement with one with the running rail connected activator to arrive. As a result, the forces are provided when opening by two springs, so that particularly high forces i opening direction can be provided. A driver is objected parked or latched by the closed position, so that in the closed position only a small force for unlocking a driver per ejector must be provided. As a result, low forces can be sufficient for unlocking.

The term "detent mechanism" is to be understood broadly in the present case and also to include a retraction device which pulls the movable furniture part as a self-closing a closed position and holds it there to a stop.Then the user must pull to unlock or tension the self-closing on the movable furniture part to The second driver can then move the movable furniture part in the opening direction and optionally further tension the self-closing mechanism. In the design of the locking mechanism as a self-closing mechanism, dampers can then also be used, in particular According to one embodiment, the second driver can be unlocked in a prestressed position by the activator, whereby the number of components can be reduced by releasing the latch by means of a sliding lock on the running rail Here, a single activator can be arranged on the running rail, which is initially movable together with the first driver in an opening operation, can be decoupled from the first driver and then coupled to the second driver. This activator can then be decoupled when reaching a predetermined opening position of the second driver so that the running rail is free to move without the action of the ejector. The two drivers thus arrive in succession with the activator on the running rail in engagement, wherein in the closing direction also the activator successively first with the second driver and then with the first driver engages and is then locked in the closed position by the second driver. The springs for biasing the first and second driver may have a different spring strength, for example, the second driver may have a greater spring force to accelerate coupled to the track drawer. It is also possible to provide more than two drivers on the ejection device, to move the running rail over a predetermined length in the opening direction. The length of the support of the movement in the opening direction and the spring force can be adjusted freely within wide ranges. According to a further embodiment, the first latching mechanism

Control on which can be latched to a detent recess of a cam guide. The control can be formed, for example, as a wire, which is guided along a groove-shaped cam guide in a housing, with only small forces acting on the control and the cam guide, so that a compact construction is possible.

The second carrier is preferably mounted movably along a slot or a groove on a housing. The guide is designed so that in a tensioned end position of the activator can be coupled to the driver and then moved in the direction of travel of the track driver and activator together. Upon reaching an end position, the activator is again decoupled from the driver, for example by an angled or bevelled end portion of the guide, so that the running rail can then be moved freely again.

According to a further embodiment, the first and the second driver along a spaced guide are movably mounted on a housing. It is possible to form both guides integrally with a single housing, or to arrange a plurality of housing adjacent to each other.

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

1A to 1C show several views of a drawer with an ejection device according to the invention;

Figure 1 D is a detail view of a section of a cam guide of the ejection device;

Figures 2A to 2E show several views of the ejection device in one

Schiießposition; Figures 3A to 3E show several views of the ejection device during unlocking;

FIGS. 4A to 4E show several views of the ejection device during an initial opening movement;

Figures 5A to 5E show several views of the ejection device at an opening movement spaced from the closed position;

FIGS. 6A to 6E show several views of the ejection device when the second driver engages;

Figures 7A to 7E show several views of the ejection device in the decoupling of the second driver;

FIGS. 8A to 8E show several views of the second guide of the ejection device according to the invention in different positions;

Figures 9A and 9B are two perspective views of the second guide, and

Figure 10 is an exploded perspective view of a second

Embodiment of an ejection device according to the invention.

A drawer 1 is movably held on two pullout guides 2, wherein the drawer 1 is movable via an ejection device 3 in the opening direction and can be locked in a closed position. As shown in FIG. 1C, the pullout guide 2 comprises a guide rail 4 which can be fixed to a furniture body and on which a movable running rail 5 is mounted. On the running rail 5, a web-shaped activator 6 is fixed, which cooperates with the ejection device 3. The ejection device 3 is fixed via holder 7 on the furniture body. The pullout guide 2 can still have a middle rail between the guide rail 4 and the running rail 5 and be designed as a full extension.

The ejection device 3 comprises a strip-shaped housing 12, on which a first guide 9 and a second guide 11 are recessed in the form of slots are, wherein on the first guide 9, a first driver 8 is slidably mounted and on the second guide 11, a second driver 10 is slidably mounted. The housing 12 is fixed to the holders 7 and thus to the furniture body.

The first driver 8 is held movably on the guide 9 and biased by a spring 13 in the opening direction. The driver 8 is connected to a control element 15 in the form of a wire, wherein an end-side hook 17 is fixed to a corresponding receptacle of the driver 8. The control element 15 has on the opposite side an angled end portion 16 which is guided in a groove-shaped cam guide 24 in a housing 18.

The second driver 10 is movably mounted along the guide 11 and biased by a spring 14 in the opening direction. The driver 10 may be held at opposite end portions of the guide 11.

FIG. 1D shows a section of the groove-shaped cam guide 24. Clearly visible is a latching recess 21, on which the angled end section 16 of the control element 15 can be closed. Furthermore, located on the cam guide 24 is a run-on slope 26 which, in a movement of the movable furniture part in the closing direction, the angled end portion 16 of the control element 5 in a channel 22, and thus in the release position moves. FIGS. 2A to 2E show the ejection device with the drawer 1 in a closed position. A front panel 19 of the drawer 1 is slightly spaced, for example, between 1 mm and 4 mm, from an end edge 20 of a furniture body, which is shown only schematically. In Figure 2C, the housing 12 is shown partially cut and it can be seen that the web-shaped activator 6 in a receptacle of the driver. 8

is coupled. The driver 8 is held by a latching mechanism on a detent recess 21, wherein the angled end portion 16 of the control element 15 rests against the detent recess 21 of the cam guide 24. In FIGS. 3A to 3E, the position is shown when the latching mechanism is unlocked to open the drawer 1. For this purpose, the front panel 19 is pressed against the end edge 20 of the Möbefkorpus, whereby the control 15 is moved via the activator 6 and the driver 8 in the closing direction, so that the end portion 16 is removed from the detent recess 21 and is slightly pivoted by a Anachschräge 26 to enter a channel 22 of the cam guide.

In Figures 4A to 4E, the unlocked position is shown, in which the drawer is moved in the opening direction. The front panel 19 moves away from the front edge 20 of the furniture body and the driver 8 is moved along the guide 9. For this purpose, the spring 13 acts in the opening direction. The control element 15 is freely movable in the opening direction of the channel 22 along a groove-shaped portion, so that the opening movement is supported by the spring 13. As shown in Figure 4C, the driver 8 is located at a position in which the guide 9 extends obliquely downwards at a portion 90 and thereby the driver 8 is pivoted. As a result of the pivoting of the driver 8, the web-shaped activator 6 disengages from the driver 8 and can move freely away from the driver 8.

In FIGS. 5A to 5E, the position is shown when the activator 6 engages with the second driver 10. The drawer 1 is in an opening position spaced from the closed position, for example in a range between 2 cm and 10 cm, wherein the first driver 8 is held at the end position at the portion 90. The activator 6 is coupled by the movement in the opening direction with the second driver 10, which moves from a locked parking position and is now activated, wherein the driver 10 is moved along the guide 11 in the opening direction to relax the spring 14 , The control element 15 remains on the section 23, since the driver 8 also remains in the end position.

In FIGS. 6A to 6E, a position of the ejection device is shown when the second driver 10 is in engagement with the web-shaped activator 6. The spring 14 now pulls the driver 10 in the opening direction and thus supports any manual opening movement of the user.

In FIGS. 7A to 7E, a position of the ejection device is shown when the second driver 10 disengages from the activator 6. For this purpose, the driver 10 moves to an obliquely extending portion 35 and thus pivots away from the activator 6, so that the running rail 5 is now moved away from the driver. mer 10 is decoupled. The driver 8 is held in its end position and accordingly the control element 15 remains on the section 23.

In FIGS. 8A to 8E, a slightly modified guide 11 'for the second driver 10' is shown in detail, which is formed separately from the first guide 9. In FIG. 8A, an activator 6 is arranged at a distance from the driver 10 '. If the activator 6 moves in the opening direction (FIG. 8B), the activator 6 engages with a stop 33, which is designed as a side wall of a receptacle 32. The second driver 10 'is held movably via a front pin 31 and a rear pin 30 along the slot-shaped guide 11'. The accelerated activator 6 now strikes the second driver 10 'in the opening direction and thereby moves the pin 30 from an angled end portion 37 of the guide 1 1' out. As a result, the spring 14 can now move the second driver 10 'together with the coupled-in activator 6 in the opening direction.

The guide 1 1 'comprises a linear portion 36 which is aligned parallel to the opening direction, an oblique portion 35, and an angled end portion 37 for locking the driver 10'. When the activator 6 is moved in the opening direction by the tensile force of the driver 10 ', the driver 10' comes to the inclined portion 35 and pivots downwards by the guidance of the pin 31 (Figure 8D), so that the stop 33 is disengaged Leading edge of the activator 6 passes. As a result, the activator 6 can be moved free of the driver 10 'after coupling out (FIG. 8E), the driver 10' now being held in an end position of the guide 11 '.

For a Schiießbewegung the activator 6 is moved in the closing direction and pulls the driver 10 'against the force of the spring 14 along the guide 1 1' until the driver 10 'is locked or latched to the angled end portion 37. Then the activator 6 disengages from the driver 10 'and can now be moved to the first driver 8, which is then moved to a closed position. In this case, the control element 15 passes through the corresponding design of the cam guide back to the locking recess 21 and the drawer 1 is locked in the closed position.

In FIGS. 9A and 9B, the housing 12 'for the guide 11' is shown in detail. The housing 12 'comprises an upper groove 38 into which the ridge-shaped active gate 6 engages. At the groove 38 and a further activator 60 is performed. The driver 10 'has on opposite sides pins 30 and 31 which engage in the slot-shaped guide 11', respectively. The further activator 60 is fastened under the bottom of a drawer so that it can run into the groove 38 of the housing 12 'in order to engage the second driver 10 ". The activators 6 and 60 lie in different planes, see FIG that they can also arrive at the same time as the carriers 10 'and 8' assigned to them, which leads to an amplification of the force on the path section of the simultaneous engagement, as well as a secure transfer from the first to the second system.

FIG. 10 shows a modified embodiment of an ejection device, in which the housing 12 'is formed with the guide 11' for the second driver 10 'as in the first exemplary embodiment. A first driver 8 'is held on a modified housing 9', wherein a detent mechanism 18 'is arranged in a cartridge. An activator 6 on a running rail 5 can be locked on the first driver 8'. For unlocking the driver 8 'moves a Schüeßrichtung. After unlocking, the driver 8 'is moved in the opening direction, in order to then engage the activator 60 on the second driver 10'. The second activator 60 located on the drawer 1 engages in the second driver 10 'and unlocks it from the detent position.

In the illustrated embodiment, a single activator 6 is arranged on the running rail 5. Another activator 60 is preferably arranged on the drawer bottom (during an opening movement). It is also possible at the

Running track 5 two activators 6 set, wherein an activator with the first driver 8 and a second activator 6 with the second driver 10 engages. As a result, the area in which the opening movement for the drawer 1 is supported can be made more flexible. It is also possible to provide more drivers on the ejector instead of two drivers.

Further, it is possible to form the latching mechanism that holds the activator 6 in the closed position as a self-closing mechanism. The self-closing pushes the driver 8 on the guide 9 via a spring in the closed position, so that the actuator 6 is pressed with the movable furniture part in the closed position against a stop. To open or unlock the movable furniture part is moved from the closed position in the opening direction until the activator 6 on the second driver 10 engages and then pulled in the opening direction. In this case, the self-closing can be further tightened if the self-closing has not yet reached its end position in this position. The ejection device is mounted on a pullout guide in the preceding embodiments. It is also possible to provide the ejection device to another movable furniture part, for example a movable sliding door.

LIST OF REFERENCE NUMBERS

1 drawer

2 pullout guide

3 Outlet device

4 guide rail

5 track rail

6 activator

7 holders

8 first driver

8 'First driver

9 First tour

9 'housing

10 second driver

10 "second driver

11 Second lead

11 'Second lead

12 housing

12 'housing

13 spring

14 spring

15 control

16 end section

7 hooks

18 housing

18 ^* locking mechanism

19 front panel

20 forehead edge

21 resting recess

22 channel

23 section

24 curve guide

26 curtains

30 cones

31 cones

32 recording

33 stop

35 section

36 section

37 end section

38 groove

60 activator

90 section

Claims

claims

1. ejection device, in particular for moving furniture parts, such as a pullout guide (2) for a drawer (1), with a latching mechanism, by means of which a first driver (8, 8 ') by the force of a first spring (13) locked in a closed position is, wherein the first driver (8, 8 ') along a guide (9) is movable and with a with a running rail (5) of a pullout guide (2) connected activator (6) is coupled, wherein the latching mechanism is unlocked to the To move driver (8, 8 ') together with the activator (6) in the opening direction, characterized in that at least a second driver (10, 10') is provided which is biased by a second spring (14) in the opening direction and between two end positions along a guide (11) is movable to spaced from the closed position into engagement with an activator connected to the movable furniture part (6, 60) engage.

2. Ejecting device according to claim 1, characterized in that the second driver (10, 10 ') in a biased position by an activator (6, 60) can be unlocked

3. Ejecting device according to claim 1 or 2, characterized in that a single activator (6) on the running rail (5) is arranged, which is initially movable together with the first driver (8) in an opening operation, from the first driver (8 ) can be decoupled and then with the second driver (0) can be coupled.

4. Ejecting device according to claim 2 or 3, characterized in that the activator (6, 60) on reaching a predetermined opening position of the second driver (10) can be decoupled.

5. Ejecting device according to claim 1 or 2, characterized in that a plurality of activators on the running rail (5) are arranged and a first activator with the first driver (8) and a second activator with the second driver (10) can be coupled.

6. Ejecting device according to one of claims 1 to 5, characterized in that the first and the second driver (8, 8 ', 10, 10') along spaced guides (9, 11, 11 ') on a housing (12, the second ') are movably mounted.

7. Ejecting device according to one of claims 1 to 6, characterized in that the first latching mechanism comprises a control element (15) which can be latched to a latching recess (21) of a cam guide (24).

8. Ejecting device according to one of claims 1 to 7, characterized in that the second driver (10, 0 ') along a slot (1) or a groove on a housing (12, 12') is movable.

9. Ejecting device according to claim 8, characterized in that the

Housing (12, 12 ') is strip-shaped and adjacent to the pullout guide (1) is fixed.