EP2654507A1

EP2654507A1 - Opening and closing device for movable furniture parts

Info

Publication number: EP2654507A1
Application number: EP11802337.3A
Authority: EP
Inventors: Uwe Sobolewski; Rainer Weichelt; Andreas Hoffmann; Oliver Schael; Stefan Andschus; Lars Schrubke; Karsten Kroke; Janine Mertens; Patrick Freiheit; Thomas Prior
Original assignee: Gorges Alexander; Paul Hettich GmbH and Co KG
Current assignee: Gorges Alexander; Paul Hettich GmbH and Co KG
Priority date: 2010-12-22
Filing date: 2011-12-13
Publication date: 2013-10-30
Anticipated expiration: 2031-12-13
Also published as: ES2538584T3; CN103763987B; DE202010013186U1; EP2654507B1; TW201236606A; WO2012084595A1; CN103763987A

Abstract

The invention relates to an opening and closing device for movable furniture parts, in particular drawers (3), comprising a draw-in device (40) and an ejection device (6), wherein the ejection device (6) comprises a driver (26), which is preloaded by an energy accumulator (29) and can be locked in an end position of a guide track (22) and coupled to a slide (15), wherein a pivotable lever (30) is provided, which forms a stop for the slide (15) and by means of which the driver (26) can be unlocked from the end position.

Description

Opening and closing device for movable furniture

The present invention relates to an opening and closing device for movable furniture parts, in particular drawers, with a Einzugsvorrich- device and an ejection device, wherein the ejection device comprises a biased by a power storage driver, which is unlockable in an end position of a guideway and coupled to a carriage and an ejector.

There are opening devices for movable furniture parts are known, which move via a ejection ism us a movable furniture part in the opening direction (EP 766 939). Such opening devices hold the movable furniture part in a predetermined closing position, so that the opening device is unlocked by pulling or pushing the movable furniture part and the movable furniture part is ejected. In such opening devices has the disadvantage that the assembly of the opening device must be very accurate, so that the closed position of the movable furniture parts is predetermined to achieve an appealing aperture image.

It is therefore an object of the present invention to provide an opening and closing device for movable furniture parts, which is easy to install and also ensures comfortable handling. This object is achieved with an opening and closing device with the features of claim 1.

According to the invention, the opening and closing device comprises both a collection device and an ejection device, wherein the ejection device comprises a driver biased by a force accumulator, which can be locked in an end position on the guideway and coupled with a carriage. A pivotable lever forms a stop for the carriage, wherein by means of the lever, the driver from the end position can be unlocked to activate the ejection device. As a result, the closing position is predetermined by the pivotable lever, which forms a stop. The retraction device ensures that the closed position is reached and the carriage rests against the lever. The user therefore no longer has to move the movable furniture part exactly into the closing position. move position, but only to a point where the ejector is stretched and the collection device is effective.

Preferably, in a closed position, the carriage is tensioned in the closing direction by the draw-in device, and the holding forces of the driver in the locked position are greater than the release forces due to the lever on which. the chute is present. Thereby, locking of the movable furniture member is obtained in the closed position, so that the system is stable when only the retracting device in the closed position is effective and biases the carriage in the closing direction.

Preferably, the lever is rotatably mounted on a housing, on which a guide track for the driver and / or the carriage is formed. As a result, the ejection device can be designed to be particularly compact. The lever preferably has two arms that protrude from an axis of rotation of the lever, so that a desired transmission ratio can be adjusted by the choice of the length of the arms. Furthermore, two pins are provided as stops or Drehwegbegrenzer for the lever. For an adjustment of the diaphragm gap, the ejection device preferably has at least one ejection stop which can be adjusted in the closing direction. The ejection stop can be adjustable in stages via a nut, but other adjustment mechanisms can be used. According to a further embodiment, two spaced apart stops are provided on the carriage, wherein a first stop with the driver in the ejection direction and a second stop in the feed direction with the driver can be coupled. This ensures that the ejection device is tensioned by the first stop before reaching the shooting position. The effective in the direction of feed stop can be designed to be resilient and latching be moved past in the opening direction of the driver. The closing-effective stopper disengages from the driver when in a cocked and locked position, for example by pivoting while moving along a guideway having an angled end portion.

According to a further embodiment, a magnet is arranged on the ejection stop, which can be coupled with a metallically fixed activator. As a result, the ejection stop not only pressure but also tensile forces transferred, in particular can be pulled over a coupling of the ejection stop on the fixed activator of the carriage along a guideway. This makes it possible in a simple manner to decouple the first stop from the driver and to engage the second stop on the carriage with the driver.

In order to adapt the opening and closing device for different widths and heavy movable furniture parts, the force on the driver or, alternatively, the available energy of the energy storage device is adjustable. For this purpose, the energy accumulator may be formed as a spring, wherein one end of the spring on one side at different positions on a housing can be fixed. Other adjustment mechanisms can be used to adjust the spring force of the ejector to the desired purpose. Alternatively, the energy in the system can be varied via a travel limit for the driver. Spaced between a comb of the adjusting lugs to each other and the guideway for the driver can be used a limiting element for energy adjustment.

Preferably, the force accumulator of the ejection device is tensioned when closing the movable furniture part, wherein the path for tensioning the energy accumulator spaced from a closed position is arranged, for example, at a distance between 2 to 5 cm. As a result, the handling is particularly simplified because the user does not have to lock the furniture part exactly on the furniture body. In this case, the intake device can be activated during a closing process at the end of the tensioning path of the energy accumulator of the ejection device, so that the distance between the clamping of the ejection device and the actual closed position can be covered automatically via the intake device. To avoid hard Anschiauschäusche, the collection device can also be designed to be damped.

Preferably, the ejection device has two guideways. One is used to guide the driver us is usually designed as Krückstockkurve, ie a linear guideway with angled end portion. The further guideway is used to guide the carriage or

Mitnehmerschlittens and is preferably designed with no angled section.

The feeder and ejector are preferably

spaced from each other on the movable furniture part and / or furniture body assembled. As a result, installation spaces can be used particularly well, for example, the housing of the ejection device can be mounted on the underside of a drawer, while the collection device is accommodated in a side frame of a drawer.

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

FIG. 1 shows a perspective view of a furniture with an opening and closing device according to the invention;

Figure 2 is a perspective view of the pusher of the

FIG. 1; Figure 3 is an exploded perspective view of an ejection device according to the invention;

Figure 4 is a view of the ejection device in the assembled state .;

FIGS. 5 to 12 show several views of the furniture, the ejection device and the feed device in different positions; FIG. 13 shows a detailed view of the diaphragm gap;

FIGS. 14A to 14C show several views when adjusting the diaphragm gap;

Figure 15 is a view of the opening and closing device at

Adjusting the diaphragm gap;

FIG. 16 is a force-displacement diagram of the opening and closing device;

Figure 17 is a modified force-displacement diagram with different spring forces, and

Figure 18 is a view of the ejector with the settings for the spring. A piece of furniture 1 comprises a schematically illustrated furniture body 2 on which a sliding element 3 in the form of a drawer 3 is displaceably mounted. For this purpose, 3 Auszugsfüh- ments 5 are provided on opposite sides of the drawer, which are defined by angle 9 on the furniture body 2. The drawer 3 with the front panel 4 can be ejected via an ejector 6 in the opening direction, the ejector 6 is supported on an angular activator 7, which is mounted on the furniture body 2. The angular activator 7 is fixed to a fixed furniture part such as the body wall, the carcass angle of the pullout guide or the guide rail of the pullout guide. An integral design of the angular activator 7 with, for example, the carcass angle of the pullout guide or the guide rail of the pullout guide is also possible. The opening and closing device according to the invention is used by way of example in conjunction with a drawer, but it is also possible to use the opening and closing device for other movable furniture parts, such as sliding doors, push elements and flaps.

As shown in Figure 2, the ejection device 6 is mounted on the underside of the drawer 3, while the drawer guide 5 is received within side frames 8 of the drawer 3. On the pullout guide 5 is a collection device 40, by means of the drawer 3 in

Closing direction is pulled. The ejection device 6 is shown in detail in FIGS. 3 and 4. A housing 20 formed from two parts forms a first guide track 21 for a carriage 15. The carriage 15 comprises two pins 16 which are movable in the linear guide track 21. On the chute 15 a discharge stop 10 is arranged, in which a magnet 1 1 is added. The magnet 11 can couple to the angular activator 7 and then holds the ejection stop 10 on the activator 7 fixed to the furniture body.

The ejection stop 10 is adjustable in the closing or opening direction, wherein the ejection stop 10 for this purpose has a threaded bolt 12 which is guided by two eyelets 14 on the carriage 15. Between the two eyelets 15, a nut 13 is rotatably supported, so that by rotating the nut 13 of the ejection stop 10 can be moved. On the carriage 15, a first stop 17 is formed, which can be brought into engagement with a driver 26 in the ejection direction. Spaced apart from the first stop 17, a second stop 18 is provided on the carriage 15, which can be coupled in the closing direction with the driver 26. The second stop 18 is resilient and includes a spring bar 19 which is supported at the bottom of a receptacle 25 for the stop 18. As a result, the stop 18 can be pressed against the force of the spring bar 19 in the carriage 15. The stopper 18 also has on the protruding from the carriage 15 section on a run-on slope.

On the housing 20, a second guide track 22 is formed, on which a driver 26 of the ejection device 6 is movable. The driver 26 includes two pins 27 that engage the track 22 and a protruding tip 28 that can be engaged with the first stop 17 or second stop 18. The guideway 22 in this case comprises an angled end portion, on which the driver 26 can be locked by the force of a spring 29. The spring 29 can be set at the end remote from the driver 26 at different positions on the housing 20 or the housing 20 arranged components to adjust the force of the spring 29 can.

On the housing 20, a lever 30 is rotatably mounted, which engages with an axis 31 in a receptacle on the housing 20. On both sides of the axis 31, the lever 30 has arms 32 and 33. The arm 32 rests against the second stop 18 in the closed position, while the arm 33 of the lever 30 bears against the driver 26. The pins 34 and 35 serve as Drehwegbegrenzer for the lever 30. The stopper 35 causes the lever 30 can not get out of the sphere of influence of the driver 26. Again, the stop 34 causes the lever 30 can not get out of the influence of the stop 18 on the carriage 15. The stops 34 and 35 thus increase the reliability of the ejector.

5, the opening and closing device is shown in the closed position, in which the front panel 4 is arranged with a small gap y (see FIG. 13) to the furniture body 2. A collection device 40 on the pullout guide 5 is via a driver 42 in engagement with an activator 41, which is fixed to the running rail of the pullout guide 5. The driver 42 is movably mounted along a cam guide on a housing 43 and through the force of a spring tensioned in the closing direction. The spring is received in a cartridge 44, in which a damper can be arranged.

The retraction device 40 presses the push element 3 in the closing direction, so that the housing 20 is also pressed in the closing direction.

Due to the force of the spring of the retracting device, the carriage 15, which is supported via the ejection stop 10 on the activator 7 and therefore can not move further along the guide track 21, acts on the arm 32 of the lever 30. The lever 30 therefore passes through the force of the spring of the retraction device 40 in Figure 5 is stretched in the clockwise direction and presses with the arm 33 against the driver 26 so that it moves out of the angled end portion of the guideway 22 and is unlocked. The

Entriegelungskräften by the retractor 40 counteracts the force of the spring 29, which holds the driver 26 in the locked position. Since the force of the spring 29 is significantly greater than the force of the retraction device 40, the driver 26 is held in the locked position, when next to the retraction device 40 no further force is exerted on the pusher.

In Figure 6, the position when unlocking the opening and closing device is shown. The front panel 4 has been slightly pushed into the furniture body 2, at most by the amount of the gap y. Here, the voltage applied to the activator 7 ejection stop 10 and thus the carriage 15 of the ejector has been moved slightly in the closing direction. Furthermore, the activator 41 of the collection device has been moved slightly in the closing direction.

By pressing the front panel 4, the lever 30 has been rotated by the stop 18 on the carriage 15 in a clockwise direction, so that the arm 33 of the lever 30 moves the driver 26 out of the locked end position. As a result, the driver 26 can now be moved along the guide track 22 by the force of the spring 29. The driver 26 is engaged with the first stop 17 on the carriage 15. In Figure 7, the opening and closing device is shown in an ejection position. The front panel 4 is spaced from the furniture body 2. The retraction device 40 has been tensioned by moving the thrust element in the opening direction, wherein the activator 41 has moved the cam 42 along the guideway to an angled end portion on which the driver 42 has been pivoted and brought out of engagement with the activator 41. The ejection device 6 is still effective and the carriage 15 is moved by the driver 26 in the opening direction. FIG. 8 shows the position in which the driver 26 of the ejection device abuts a limiting element 23 which is inserted into the housing 20. For this purpose, the housing 20 has a comb 37 which has positioning lugs 38 into which the limiting element 23 can be inserted for the purpose of creating the distances 51 to 55 for the driver 26. The driver 26 has now arrived in the end position, while the carriage 15 along the guide track 21 can be moved on. Thus, the carriage 15 does not stop in this position, now acts the tensile force of the magnet 11 which is coupled to the metallic activator 7 on the furniture body. As a result, the carriage 15 is pulled further along the guide track 21.

FIG. 9 shows the position in which the carriage 15 has now reached its end position on the guide track 21. During the further opening movement: the carriage 15 was pulled along the guide track 21, the second stop 18 being moved over the tip 28 of the driver 26. The stop 18 was briefly pressed against the force of the spring bar 29 in the carriage 15 and the stop 18 moves with the run-on slope over the top 28 of the driver away. Subsequently, the stop 18 is latched by the force of the spring bar behind the tip 28 of the driver 26

In this position, the thrust element 4 can now be moved freely in the opening direction, with both the ejection device 6 and the retraction device 40 are disengaged and only the tensile force of the magnet 11 on the activator 7 must be overcome, to which usually the inertial force of Drawer 3 is enough.

In Figure 10, the pusher is again moved in the closing direction, initially the spring 29 of the ejector 6 is tensioned. For this purpose, the second stop 18 engages the driver 26 and moves it to the angled end portion of the guide rail 22. When the driver 26 has arrived at the angled end portion, he presses the lever 30 counterclockwise. In addition, the tip 28 of the driver 26 is disengaged from the second stop 18, which can now be moved over the driver 26 away. The collection device 40 is still out of engagement, since the activator 41 is located just before the driver 42. In FIG. 11, a position is shown in which the collection device 40 has been activated and the activator 41 is in engagement with the driver 42, now is moved in the closing direction by the force of a pull-in spring. The ejection device 6 is in the tensioned state, wherein the carriage 15 is moved along the guide track 21. in Figure 12, the closed position is reached, which is also shown in Figure 5. The second stop 18 is now applied to the arm 32 of the lever 30, while the opposite arm 33 abuts against the driver 26. Since the holding forces by the spring 29 are greater than the triggering forces by the feed device 40, the pushing element remains stable in the closed position.

In order to be able to adjust the gap y between the front panel 4 and the furniture carcass 2 (FIG. 13), an adjusting mechanism for the ejection stop 10 is provided on the carriage 15, which has an adjustment path V.

According to FIGS. 14A to 14C, by turning the nut 13, the ejection stopper 10 can be moved in the closing or opening direction. As a result, the yaw gap formed gap y is adjusted by the distances shown s or t (s + 1 = V) .. The adjustment of Blenden Paites can be carried out either with open or closed push element, wherein the accessibility to the nut 13 at the Bottom of the drawer is better given when the push element is open.

FIG. 16 shows a force / travel diagram of the opening and closing device according to the invention for the closing operation. On the left side, the closing position is arranged, in which the retraction device 40 exerts a pulling force on the thrust element. Distanced from the Einzugsvornchtung 40, the ejector 6 is effective, which is stretched during a closing movement, so that a closing force must be expended.

FIG. 17 shows the force-displacement diagram for the opening process. The triangle for clamping the ejection device is now arranged offset because the ejection device is effective immediately after unlocking in the closed position. As the opening force of the ejector significantly larger is as the closing force of the feeder, the pushing element 3 is ejected.

In. FIG. 17 shows that the triangle of the spring force of the ejection device can be broken down into different sections. Sowoh the maximum spring force as well as the spring travel can be adjusted. To change the available energy or the spring travel of the spring 29 can according to Figure 18, the Begrenzungsetement 23 at five different positions, the distances. 51 to 55. In addition, the effectiveness range, the ejection device 6 can be adjusted by selecting the length of the limiting element 23.

As a result, the opening and closing device can be adapted to different purposes optimized because it is perceived by the user as unpleasant when too high Auswerfkräfte and clamping forces are required. Rather, a smooth opening and closing should be achieved. For heavy push elements, such as sliding doors and wide drawers, higher Auswerfkräfte are necessary than for lightweight furniture parts, insofar can be made by a suitable choice of the effective spring force of the ejection device and the effective Auswerfweges an optimized adaptation for the particular application.

LIST OF REFERENCE NUMBERS

1. Furniture

2. Furniture carcass

3. drawer

4. Front panel

5. Pull-out guide

6. ejection device

7. Activator

8. side frame

9. angle

10. ejection stop

11. magnet

12. Threaded bolt

13. Mother

14th eyelet

15. sledges

16th pin

17th stop

18th stop

19. Spring bar

20. Housing

21. guideway

22. Guideway

23. Limiting element

25. Recording

26. Driver

27th pin

28th peak

29. Spring

30. Leverage

31st axis

32nd arm

33. Arm

34. stop

35th stop

37. comb

38th Stellnase

40. Feeding device 41. activator

42. driver

43. Housing

44. Cartridge 51. distance

52. Distance

53. Distance

54. Distance

55. Distance

gap

path

Distance adjustment path

Claims

claims

1. Opening and closing device for movable furniture parts, in particular

Drawers (3), comprising a draw-in device (40) and an ejection device (6), the ejection device (6) having a carrier (26) prestressed by a force store (29) which can be locked in an end position of a guide track (22) a: carriage (15) can be coupled, characterized in that a pivotable lever (30) is provided which forms a stop for the carriage (15) and by means of which the driver (26) can be unlocked from the end position.

2. Opening and closing device according to claim 1, characterized in that in the closed position of the carriage (15) through the retraction device (40) is tensioned in the closing direction and the holding forces of the driver (26) in the locked position are greater than the triggering forces through the lever (30) on which the carriage (15) rests.

3. Opening and closing device according to claim 1 or 2, characterized in that the lever (30) is rotatably mounted on a housing (20) on which also a guideway for the driver (22) and / or the carriage (15). is trained.

4. Opening and Schiießvorrichtung according to any one of the preceding claims, characterized in that the lever (30) has two arms (32, 33) projecting from an axis of rotation (31) of the lever (30).

5. Opening and closing device according to one of the preceding claims, characterized in that the ejection device (6) has at least one adjustable in the closing direction ejection stop (10).

6. Opening and closing device according to claim 5, characterized in that the ejection stop (10) stages is adjustable via a nut (13).

7. Opening and closing device according to one of the preceding claims, characterized in that on the chutes (15) has two spaced-apart stops (17, 18) are provided, wherein a first stop (17) with the driver (26) in the ejection direction and one second stop (18) in the feed direction with the driver (26) can be coupled.

8. Opening and closing device according to claim 7, characterized in that the effective in the feed direction stop (18) is resilient and in the opening direction of the driver (26) is latching vorbebei movable.

9. Opening and closing device according to one of the preceding claims, characterized in that on the ejection stop (10), a magnet (11) is arranged, which can be coupled with a fixed metallic activator (7).

10. Opening and closing device according to one of the preceding claims, dadurc characterized in that the ejection device (6) has a force accumulator (29) whose force is adjustable to a driver (26).

11. Opening and closing device according to claim 0, characterized in that the energy accumulator (29) is designed as a spring, whose end on one side at different positions on a housing (20) can be fixed.

12. Opening and closing device according to one of the preceding claims, characterized in that the energy accumulator (29) of the ejection device (6) by closing the movable furniture part (3) is tensioned, the way to tension the force accumulator (29) spaced from a Closed position is arranged.

13. Opening and closing device according to one of the preceding claims, characterized in that the retraction device (40) is activated during a closing movement at the end of the clamping path of the energy accumulator (29) of the ejection device (6).

14. Opening and closing device according to one of the preceding claims, characterized in that the collection device (40) and the ejection device (6) spaced from each other on the movable furniture part (3) and / or the furniture body (2) are mounted. Opening and closing device according to one of the preceding claims, characterized in that the housing (20) of the ejection device (6) on the bottom remains of a drawer (3) can be mounted.

Discharge device for movable furniture parts, in particular drawers (3), wherein the ejection device (6) by a force accumulator (29) biased driver (26) which is lockable in an end position of a guide track (22) and with a pouring (15) coupled , characterized in that a pivotable lever (30) is provided, which forms a stop for the carriage (15) and by means of which the driver (26) from the end position can be unlocked.