DE202010013186U1 - Opening and closing device for movable furniture parts - Google Patents

Abstract

Opening and closing device for movable furniture parts, in particular drawers (3), with a retraction device (40) and an ejector device (6), the ejector device (6) having a driver (26) which is prestressed by an energy storage device (29) and which is in a End position of a guide track (22) can be locked and coupled to a slide (15), characterized in that a pivotable lever (30) is provided which forms a stop for the slide (15) and by means of which the driver (26) from the End position is unlockable.

Description

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

Opening devices for movable furniture parts are known, which move a movable furniture part in the opening direction via an ejection mechanism ( 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 to 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 does not have to move the movable furniture part exactly in the closed position, but only to a point at which the ejection device is stretched and the collection device is effective.

Preferably, in a closed position of the carriage is tensioned by the retraction device in the closing direction and the holding forces of the driver in the locked position are greater than the triggering forces by the lever on which rests the carriage. Thereby, a locking or latching of the movable furniture part is obtained in the closed position, so that the system is stable when only the retraction 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 infinitely adjustable 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 clamped by the first stop before reaching the closed 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 can transmit not only compressive but also tensile forces; in particular, the carriage can be pulled along a guideway via a coupling of the ejection stop to the stationary activator. This allows in a simple manner a decoupling of the first stop from the driver and an engagement of the second stop on the carriage with the driver.

In order to adjust the opening and closing device for different width 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 collection device can be activated during a closing operation at the end of the clamping path of the energy storage of the ejection device, so that the distance between the clamping of the ejection device and the actual closed position can be automatically covered by the feed device. To avoid hard impact noise, 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 driver carriage and is preferably designed with no angled section.

The collection device and ejection device are preferably mounted at a distance from one another on the movable furniture part and / or furniture body. 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 using an exemplary embodiment with reference to the accompanying drawings. Show it:

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

2 a perspective view of the thrust element of 1 ;

3 an exploded perspective view of an ejection device according to the invention;

4 a view of the ejection device in the assembled state;

5 to 12 several views of the furniture, the ejection device and the collection device in different positions;

13 a detailed view of the diaphragm gap;

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

15 a view of the opening and closing device in adjusting the diaphragm gap;

16 a force-displacement diagram of the opening and closing device,

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

18 a view of the ejector with the settings for the spring.

A furniture 1 includes a schematically illustrated furniture body 2 , to which a push element in the form of a drawer 3 is slidably mounted. These are on opposite sides of the drawer 3 drawer runners 5 provided that over angles 9 on the furniture body 2 are fixed. The drawer 3 with the front panel 4 can be via an ejection device 6 ejected in the opening direction, wherein the ejection device 6 on an angle-shaped activator 7 supported on the furniture body 2 is mounted. The angular activator 7 is attached to a stationary furniture part such. B. the body wall, the carcass angle of the pullout guide or the guide rail of the pullout guide set. An integral formation 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, the opening and closing device for other movable furniture parts, such as sliding doors, push elements and flaps.

As in 2 is shown is the ejector 6 at the bottom of the drawer 3 mounted while the pullout guide 5 within side frames 8th of the drawer 3 is included. On the pullout guide 5 there is a collection device 40 , by means of the drawer 3 is pulled in the closing direction.

The ejection device 6 is in the 3 and 4 shown in detail. A housing formed from two parts 20 forms a first guideway 21 for a sled 15 out. The sled 15 includes two pins 16 that are in the linear guideway 21 are movable. On the sledge 15 is an ejection stop 10 arranged in which a magnet 11 is included. The magnet 11 can be at the angular activator 7 connect and then holds the ejection stop 10 on the activator specified on the furniture body 7 ,

The ejection stop 10 is adjustable in the closing or opening direction, with the ejection stop 10 for this a threaded bolt 12 which has two eyelets 14 on the sledge 15 is guided. Between the two eyelets 15 is a mother 13 rotatably held, so by turning the nut 13 the ejection stop 10 can be moved.

On the sledge 15 is a first stop 17 trained, with a driver 26 can be engaged in the ejection direction. Distanced from the first stop 17 is a second stop 18 on the sledge 15 provided in the closing direction with the driver 26 can be coupled. The second stop 18 is resilient and includes a spring bar 19 standing at the bottom of a pickup 25 for the stop 18 is supported. This can be the stop 18 against the force of the spring bar 19 in the sled 15 be pressed. The stop 18 also points to the from the carriage 15 excellent section on a run-on slope.

On the case 20 is a second guideway 22 trained, at the a driver 26 the ejection device 6 is movable. The driver 26 includes two pins 27 in the guideway 22 intervene and a protruding tip 28 that with the first stop 17 or second stop 18 can be engaged. The guideway 22 includes an angled end portion, on which the driver 26 by the power of a spring 29 is lockable. The feather 29 can be on the driver 26 opposite end at different positions on the housing 20 or on the case 20 arranged components are fixed to the force of the spring 29 to be able to adjust.

On the case 20 is a lever 30 rotatably mounted, with an axis 31 in a receptacle on the housing 20 intervenes. On both sides of the axle 31 points the lever 30 poor 32 and 33 on. The arm 32 is in the closed position on the second stop 18 on, while the arm 33 of the lever 30 at the driver 26 is applied. The attacks carried out as a pin 34 and 35 serve as Drehwegbegrenzer for the lever 30 , The stop 35 causes the lever 30 not from the sphere of influence of the driver 26 can get. Again the attack 34 causes the lever 30 not from the sphere of influence of the attack 18 on the sledge 15 can get. The attacks 34 and 35 thus increase the reliability of the ejector.

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

The collection device 40 pushes the push element 3 in the closing direction, so that the case too 20 is pressed in the closing direction.

Due to the force of the spring of the feeder the carriage acts 15 that's about the ejection stop 10 on the activator 7 is supported and therefore not further along the guideway 21 can act on the arm 32 of the lever 30 , The lever 30 is therefore due to the force of the spring of the collection device 40 in 5 straightened in the clockwise direction and presses with the arm 33 against the driver 26 so that this out of the angled end portion of the guideway 22 is moved out and unlocked. The unlocking forces through the feeder 40 the force of the spring acts 29 contrary to the driver 26 in the locked position. Because the force of the spring 29 is significantly greater than the force of the collection device 40 , becomes the driver 26 held in the locked position when next to the feeder 40 no further force is exerted on the pusher.

In 6 the position when unlocking the opening and closing device is shown. The front panel 4 was slightly, at most by the amount of the gap y, in the furniture body 2 pressed. It is the on the activator 7 fitting emissions stop 10 and thus the sled 15 the ejector has been moved slightly in the closing direction. Furthermore, the activator 41 the retraction device has been moved slightly in the closing direction.

By pushing in the front panel 4 became the lever 30 through the stop 18 on the sledge 15 Turned clockwise, leaving the arm 33 of the lever 30 the driver 26 moved out of the locked end position out. This allows the driver 26 now by the force of the spring 29 along the guideway 22 to be moved. The driver 26 engages with the first stop 17 on the sledge 15 ,

In 7 the opening and closing device is shown in an ejection position. The front panel 4 is located at a distance from the furniture body 2 , The collection device 40 was tensioned by moving the pusher in the opening direction, the activator 41 the driver 42 along the guideway has moved to an angled end portion to which the driver 42 pivoted and disengaged with the activator 41 was brought. The ejection device 6 is still effective and the sled 15 is through the driver 26 moved in the opening direction.

In 8th is shown the position at which the driver 26 the ejection device to a limiting element 23 strikes that in the case 20 is plugged in. The housing 20 has a comb for this purpose 37 on, the over noses 38 has the boundary element in it 23 to create the distances 51 to 55 for the driver 26 can be inserted. The driver 26 is now in the final position, while the sled 15 along the guideway 21 can be moved further. So the sled 15 does not stop in this position, now affects the pulling force of the magnet 11 that with the metallic activator 7 coupled to the furniture body. This will make the sled 15 continue along the guideway 21 drawn.

In 9 the position is shown, in which now also the slide 15 its final position on the guideway 21 has reached. During the further opening movement was the slide 15 along the guideway 21 pulled, with the second stop 18 over the top 28 of the driver 26 was moved away. This was the stop 18 against the force of the spring bar 29 briefly in the sled 15 pressed in and the stop 18 with the run-up slope over the top 28 of the driver moves away. Subsequently, the stop 18 by the force of the spring bar behind the top 28 of the driver 26 locked.

In this position, the thrust element can now 4 be moved freely in the opening direction, with both the ejection device 6 as well as the collection device 40 are out of engagement and only the pulling force of the magnet 11 on the activator 7 must be overcome, with this usually the inertia of the drawer 3 enough.

In 10 the thrust element is moved back in the closing direction, initially the spring 29 the ejection device 6 is tense. For this, the second stop attacks 18 at the driver 26 and moves this up to the angled end portion of the guideway 22 , If the driver 26 has arrived at the angled end portion, he presses the lever 30 counterclockwise. In addition, the top arrives 28 of the driver 26 out of engagement with the second stop 18 , now about the driver 26 can be moved away.

The collection device 40 is still disengaged because of the activator 41 just before the driver 42 is arranged.

In 11 is shown a position in which the collection device 40 has been activated and the activator 41 in engagement with the driver 42 is now moved in the closing direction by the force of a pull-in spring. The ejection device 6 is in a stretched state, with the carriage 15 along the guideway 21 is moved.

In 12 is reached the closing position, which is also in 5 is shown. The second stop 18 is now on the arm 32 of the lever 30 on, while the opposite arm 33 at the driver 26 is applied. Because the holding forces by the spring 29 are greater than the triggering forces through the feeder 40 , the pusher remains stable in the closed position.

To the gap y between the front panel 4 and the furniture body 2 to be able to adjust ( 13 ), is on the sled 15 an adjustment mechanism for the ejection stop 10 provided, which has a displacement V.

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

In 16 a force-displacement diagram of the opening and closing device according to the invention for the closing operation is shown. On the left Side is arranged the closing position at which the collection device 40 exerts a tensile force on the pusher. Distanced from the collection device 40 is the ejector 6 effective, which is tensioned during a closing movement, so that a closing force must be expended.

In 17 the force-displacement diagram for the opening process is shown. The triangle for clamping the ejection device is now arranged offset because the ejection device is effective immediately after unlocking in the closed position. Since the opening force of the ejector is significantly greater than the closing force of the retractor, the push element 3 pushed out.

In 17 It is shown that the triangle of the spring force of the ejector can be decomposed into different sections. Both the maximum spring force and the spring travel can be adjusted. To change the available energy or the spring travel of the spring 29 can be done accordingly 18 the boundary element 23 at five different positions, the distances 51 to 55 , be determined. In addition, about the choice of the length of the limiting element 23 the effectiveness range of the ejector 6 be set.

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. In this respect, by an appropriate choice of the effective spring force of the ejection device and the effective Auswerfweges an optimized adaptation for the particular application can be made.

LIST OF REFERENCE NUMBERS

1

Furniture

2

furniture body

3

drawer

4

front panel

5

pull-out guide

6

ejector

7

activator

8th

Drawer side

9

angle

10

emissions stop

11

magnet

12

threaded bolt

13

mother

14

eyelet

15

carriage

16

spigot

17

attack

18

attack

19

spring bar

20

casing

21

guideway

22

guideway

23

limiting element

25

admission

26

takeaway

27

spigot

28

top

29

feather

30

lever

31

axis

32

poor

33

poor

34

attack

35

attack

37

Comb

38

fixing lug

40

retraction device

41

activator

42

takeaway

43

casing

44

cartridge

51

distance

52

distance

53

distance

54

distance

55

distance

y

gap

s

path

t

path

V

adjustment

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

• EP 766939 [0002]

Claims (16)

Opening and closing device for movable furniture parts, in particular drawers ( 3 ), with a collection device ( 40 ) and an ejection device ( 6 ), the ejection device ( 6 ) one by an energy store ( 29 ) prestressed carriers ( 26 ), which in an end position of a guideway ( 22 ) lockable and with a carriage ( 15 ) is coupled, characterized in that a pivotable lever ( 30 ) is provided, which is a stop for the carriage ( 15 ) and by means of which the driver ( 26 ) can be unlocked from the end position. Opening and closing device according to claim 1, characterized in that in the closed position of the carriage ( 15 ) through the collection device ( 40 ) is tensioned in the closing direction and the holding forces of the driver ( 26 ) in the locked position are greater than the release forces by the lever ( 30 ), on which the carriage ( 15 ) is present. Opening and closing device according to claim 1 or 2, characterized in that the lever ( 30 ) rotatably on a housing ( 20 ) is mounted on which also a guideway for the driver ( 22 ) and / or the carriage ( 15 ) is trained. Opening and closing device according to one of the preceding claims, characterized in that the lever ( 30 ) two arms ( 32 . 33 ), which from a rotation axis ( 31 ) of the lever ( 30 ) protrude. Opening and closing device according to one of the preceding claims, characterized in that the ejection device ( 6 ) at least one in the closing direction adjustable ejection stop ( 10 ) having. Opening and closing device according to claim 5, characterized in that the ejection stop ( 10 ) steplessly via a nut ( 13 ) is adjustable. Opening and closing device according to one of the preceding claims, characterized in that on the carriage ( 15 ) two spaced stops ( 17 . 18 ), whereby a first stop ( 17 ) with the driver ( 26 ) in the ejection direction and a second stop ( 18 ) in the feed direction with the driver ( 26 ) can be coupled. 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 on the driver ( 26 ) can be moved past. Opening and closing device according to one of the preceding claims, characterized in that on the ejection stop ( 10 ) a magnet ( 11 ) arranged with a fixed metallic activator ( 7 ) can be coupled. Opening and closing device according to one of the preceding claims, characterized in that the ejection device ( 6 ) an energy store ( 29 ), whose force on a driver ( 26 ) is adjustable. Opening and closing device according to claim 10, characterized in that the energy accumulator ( 29 ) is formed as a spring whose end on one side at different positions on a housing ( 20 ) is determinable. 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 ), whereby the way to tension the energy store ( 29 ) spaced from a closed position. Opening and closing device according to one of the preceding claims, characterized in that the collection device ( 40 ) in a closing movement at the end of the tensioning path of the energy storage device ( 29 ) of the ejection device ( 6 ) is activated. 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 ) at the bottom of a drawer ( 3 ) is mountable. Ejection device for movable furniture parts, in particular drawers ( 3 ), the ejection device ( 6 ) one by an energy store ( 29 ) prestressed carriers ( 26 ), which in an end position of a guideway ( 22 ) lockable and with a carriage ( 15 ) is coupled, characterized in that a pivotable lever ( 30 ) is provided, which is a stop for the carriage ( 15 ) and by means of which the driver ( 26 ) can be unlocked from the end position.

Images