DE202014010109U1 - Device for opening and closing a movable furniture part - Google Patents

Abstract

Device for opening and closing a movable furniture part, in particular a drawer, door or flap, with an ejection unit (12) which has a housing (13) and an ejection member (14) movably mounted in the housing (13) via which the movable furniture part has a predetermined distance can be pressed in and then expelled, wherein in the housing (13) at least one lifting guideway (31a-d) for at least one during movement of the ejection member (14) with moved and the ejection member (14) when retracting into a detent position (18 ) in the housing (13) locking locking member (20a-d) is formed, characterized in that more than two lifting guideways (31a-d) are provided by at least two locking members (20a-d) during the input and Ausfahrhub of Ejector (14) are available.

Description

The invention relates to a device for opening and closing a movable furniture part, in particular drawer, door or flap, with an ejection unit, which has a housing and a housing movably mounted ejection member, via which the movable furniture part can be pressed in a predetermined distance and then ejected, wherein in the housing at least one lifting guideway is formed for at least one on moving the ejection member with moving and the ejection member when retracting into a detent position in the housing locking locking member.

Such a device is for example from the WO 2006/066774 A1 known. The closing and opening device described therein is intended for drawer pull-out guides, which in turn are equipped with a guide rail to be fastened to a cabinet wall of a piece of furniture and a slide rail mounted displaceably relative to the guide rail, optionally with the intermediary of a middle rail. The closing and opening device comprises a touch-latch mechanism, which is activated when the user pushes the front panel a little way in the closing direction in the drawer receptacle, so that the drawer is ejected a piece.

During the subsequent opening of the drawer this comes out of engagement with the ejection unit. Accordingly, the drawer comes in the subsequent closing again in engagement with the ejection unit. In the housing of the device, at least one lifting guideway is provided, on which a guided during the movement of the ejection member with moving locking member. In particular, in the ejection movement occurs between the locking member and the housing friction, which slows the ejection movement. This has a negative effect on the discharge path of the drawer, which does not ensure that the drawer is opened during the ejection movement a minimum discharge path.

The object of the invention is therefore to provide a device for opening and closing a movable furniture part of the type mentioned above, which is reliably operated, in particular ensures that the movable furniture part is opened during the ejection movement a minimal ejection path.

This object is achieved by a device for opening and closing a movable furniture part with the features of independent claim 1. Further developments of the invention are shown in the subclaims.

The device according to the invention for opening and closing a movable furniture part is characterized in that more than two lifting guideways are provided which can be used by at least two locking members in the input and Ausfahrhub the ejection member.

This makes it possible that the locking member, which moves in the ejection movement relative to the housing, after a relatively short relative displacement reaches a new lifting guideway and is guided there during the ejection. Since the relative distance between the at least one locking member and the housing is minimized, the friction occurring during the relative movement is reduced. Thus, it can be ensured that the movable furniture part opens at least a minimum ejection path during ejection.

In a further development of the invention, at least four lifting guideways are provided for the at least two locking members.

In a particularly preferred manner, two or four locking members are provided, which can use the at least two, in particular four lifting guideways.

In a particularly preferred manner, a control ring is rotatably mounted on the ejection member, which has the at least two locking members. The control ring with the at least two locking members is thus in this case mounted on the one hand relatively movable to the rest of the ejection member and on the other hand relatively movable to the housing of the device. In this case, friction arises between the control ring and the remainder of the ejection member as well as between the control ring and the housing, which, as already mentioned, is minimized by the reduction of the relative displacement.

In a further development of the invention, the latching members protrude radially from the outer surface of the control ring. The locking members may be configured, for example cam-like.

In one embodiment of the invention, these are arranged at more than two locking members distributed at regular intervals over the circumference of the control ring.

In a further development of the invention more than two, in each case a lifting guideway associated detent guideways are formed in the housing, which can be used when engaging the associated locking member in and ausrastend from the detent position.

Conveniently, the detent guideways are shorter, in particular less than half as long as the stroke guideways.

In one embodiment of the invention, the lifting guideway two locking guideways are provided, one of which can be used when snapping and the other when disengaging the locking member.

In a further development of the invention, the housing has a housing base part and a guide insert inserted into the housing base part. Appropriately, the housing is cylindrical. The housing may be formed, for example, in the manner of a sleeve.

In a particularly preferred manner, the lifting guideways are formed by the housing base part of the latching guideways on the guide insert.

In a further development of the invention, the lifting guideways are formed in an inner wall of the housing base part. Conveniently, the lifting guideways are components of molded in the housing base part stroke guide grooves.

Particularly preferably, the latching guideways are components of the guide insert formed to the free end of the guide insert open latching guide slots.

In a further development of the invention, the housing base part and the guide insert via a releasable latching and / or snap connection are detachably connected or connected to each other. This allows a quick assembly or disassembly of the housing in its housing components.

In a further development of the invention, the housing base part at one end has a passage opening through which the ejection member is led out of the housing, wherein the latching and / or snap connection is formed at the end of the housing base part, which with the through opening equipped opposite end.

The invention further comprises a furniture part, in particular drawer, that is characterized by a device according to one of claims 1 to 15.

Finally, the invention also comprises a piece of furniture, with at least one movable furniture part, in particular drawer, which is characterized by a device according to one of claims 1 to 15.

A preferred embodiment of the invention is illustrated in the drawing and will be explained in more detail below. In the drawing show:

1 A perspective view of a preferred embodiment of the device according to the invention,

2 a perspective view of the device 1 in which a part of the housing base part is cut away in order to make visible the guideways running there,

3 a perspective view of the device 1 with the ejection member in its detent position,

4 an exploded view of the device of 1 .

5 a side view of the device 3 .

6 a side view of the device according to 2 , wherein the ejection member is in the detent position,

7 the device of 6 , wherein the ejection member to initiate a discharge movement a little further than in 6 is shown pressed, whereby the locking member is disengaged,

8th the device of 7 , wherein the locking member is located on the associated latching guideway,

9 the device of 8th after ejection of the ejector,

10 the device of 9 when pushing in the ejector,

11 the device of 10 when engaging the ejection member in the detent position and

12 the device of 11 , during the subsequent initiation of the ejection movement, similar to in 8th shown,

13 a longitudinal section through the device along the line XIII-XIII in 14 .

14 a side view of the device according to 1 .

15 a perspective view of the housing base part of the device, with the running in the interior hub guideways and

16 a perspective view of the guide insert of the device.

The 1 to 16 show a preferred embodiment of the device according to the invention 11 for opening and closing a movable furniture part (not shown). The device 11 is intended for use on a designed as a drawer movable furniture part. It is of course possible to use the device on other movable furniture parts, for example on a door or on a flap.

From the device 11 is in the 1 to 16 the relevant main component, namely the ejection unit 12 shown. The device includes not yet shown further components, such as a base unit to which the ejection unit 12 is releasably stored.

The movable furniture part in the form of a drawer, not shown, is displaceably mounted by means of a guide device relative to a furniture body. The guide device comprises a plurality of guide units, which are arranged on mutually opposite side edges of the drawer. The guide unit has a carcass rail, which can be configured for example as a bent sheet-metal component. The carcass rail is fastened in a fixed position by suitable fastening means on an associated side wall of a drawer receptacle formed in the furniture body. On the carcass rail, a middle rail is slidably mounted, on the turn, a pull-out rail is guided displaceably by means of bearings. The pull-out rail, which can also be referred to as a movement rail, is assigned to the drawer and extends below the drawer bottom in the depth direction. The combination of carcase rail, middle rail and pull-out rail is called full extension. However, it is also conceivable to use guide units without middle rail.

As already mentioned, the device comprises an ejection unit 12 , via which the drawer can be pressed in a predetermined or predefinable path and subsequently ejected. The ejection unit 12 is designed as a preassembled module in such a way that it can be fastened or fastened to the drawer or to a device part attached or attachable to the drawer by means of fastening means. Conveniently, the preassembled assembly consists of base unit and releasably attachable ejection unit 12 , The device part is, for example, the carcass rail. The ejection unit 12 could also be referred to as a touch-latch device.

As in particular in 4 shown, has the ejection unit 12 a housing 13 and one in the case 13 movably mounted ejector 14 ,

The sleeve-like design in the embodiment shown housing 13 has a housing base 15 and one in the housing base 15 used leadership assignment 16 , The ejection unit 12 As already mentioned, it is detachably mounted on a base part, the base part in turn being mounted in particular on the carcass rail. Conveniently, both ejection unit 12 as well as base part made of plastic material.

As in particular in the 1 to 4 shown, is the ejector 14 designed as a discharge ram, the between a detent position 18 and one by means of spring force of an ejection spring 17 einnehmbaren extended position is guided linearly displaceable. At the front end 19 of the ejection ram, a coupling part is releasably secured in particular by means of a latching connection. The latching connection or latching coupling is releasable in the emergency opening of the drawer from the ejection plunger. On the coupling part is a latch (not shown), pivotally mounted, which in turn can be coupled with a driver on the pull-out rail. When opening the drawer by activating the ejection unit 12 There is a coupling between the ejection plunger and the drawer via the latch and the driver, whereby the ejection spring 17 their spring energy via the ejection plunger and the latch to the drawer passes, which is then ejected or ejected. Upon further opening of the drawer, the latch engages in a provided on the base part of the device notch, whereby a decoupling of latch and driver, such as fishing hooks done so that the drawer can still be pulled out regardless of pawl and ejector plunger.

As in particular in the 4 and 13 shown, has the ejector 14 at least two locking members, with the help of it in the locked position 18 is secured. As in particular in 4 shown are the locking members 20a -D on a control ring 21 , The tax ring 21 has a lateral surface 22 , from which the locking members 20a -D protrude radially outward. The locking members 20a -D are on the lateral surface 22 the control ring 21 formed. The in 4 Control ring shown by way of example 21 has a total of four locking members 20a -D, which are each configured like a cam and have an approximately trapezoidal basic shape. The four locking elements 20a -D are at regular intervals along the lateral surface 22 the control ring 21 arranged. The tax ring 21 has a slot extending in the axial direction 24 , which makes it possible to control the tax ring 21 laterally clipped onto the ejection ram. The tax ring 21 consists of elastically deformable material, such as plastic material.

As in particular in 13 shown, located on the plunger-like ejection member 14 a particular disk-like trained stop 25 , which prevents the ejection member from the housing base part 15 can get out in ejection direction. The stop 25 So there is the maximum ejection path of the ejector 14 in front. Coaxial with the stop 25 are located towards the back end 26 of the ejector 14 two more, also in particular disk-like configured bearing sections 27a . 27b , which are spaced apart in the axial direction and between them a wood cylindrical bearing receptacle 28 for the tax ring 21 define. Through the slot 24 at the control ring 21 So it is possible, this laterally in the bearing 28 to clip. The towards the rear end 26 of the ejector bearing section 27b at the same time forms an abutment for the ejection spring 17 giving a short stock stub 29 , the rear end of the ejector 14 forms, concentrically encloses.

As in particular in 13 represented, the ejection spring is supported 17 on the other hand at a repository 30 inside the leadership mission 16 from. As in particular in the 2 and 6 to 12 shown is located on the housing 13 the ejection unit 12 , in particular on the housing base part 15 at least two lifting guideways, the at least two locking members during the input and Ausfahrhub of the ejector 14 are usable.

There are four stroke guideways, for example 31a -D provided by the four latching members 20a -D be used. The guideways 31a -D are each components of themselves in the axial direction of the housing base part 15 extending guide grooves 32a d. The guide grooves 32a -D are on the inside of the hollow cylindrical housing base portion 15 arranged, in particular formed there. Like the locking members 20a The guide grooves extend 32a -D at regular intervals along the inner wall of the housing base part 15 ,

As in particular in 2 are shown, the Hub guideways 31a -D or the stroke guide grooves 32a B each at least one latching guideway 33a -H associated with the engagement of the associated locking member 20a -D in and out of the detent position 18 are usable.

As in particular in 16 are exemplified eight locking guideways 33a -H provided, each component of a detent guide 34a -H are. Appropriately, the associated locking member 20a -D guided either by one or the other axially extending side wall, which then as a detent guide track 33a -H serves.

As in particular in 13 presented, has the leadership use 16 a sleeve-like insertion portion 35 , At the free end of the eight at regular intervals arranged latching guide grooves 34a -H are formed. Between adjacent latching guide grooves 34a -H here is a narrow strip of material 36a -H, the front side of an inclined surface 37 having. The locking guide grooves 34a -H are about half as long as the stroke guide grooves 32a d. At the outer periphery of the insertion section 35 of leadership use 16 are in particular at regular intervals around the lateral surface arranged around locking elements 38 which are resiliently arranged and in associated recesses 39 on the housing base part 15 when inserting the guide insert 16 are latched.

The 5 to 12 show the operation of the ejection unit 12 during the ejection process and during the entry process.

As in particular in 6 shown, is located between each adjacent Hub-guide 32a -D each a strip of material 40a -D, which is designed as a kind of finger and at its front end similar to the strip of material 36a -H between the latching guide grooves 34a -H is bevelled. So there is an inclined surface 41 on the material strip 40a -D, which is one step in the circumferential direction 42 has, at the a respective associated locking member 20a -D in abutment. This in 6 shown position of the locking members 20a -D defines the detent position 18 of the ejector 14 ,

To initiate an ejection movement, the plunger-like ejection member 14 even further into the housing base part 15 pushed. This is done by pressing in the movable furniture part, so for example, the drawer over the predetermined distance.

As in particular in 7 shown here come the locking members 20a -D disengaged from the respective steps 42 and come in contact with the inclined surfaces 37 on the front sides of the material strips 36a -H between the latching guide grooves 34a -H. Due to the bevel reach the locking members 20a In an associated latching guide groove 34a -H, like it is in 8th is shown. In this process, the control ring rotates 21 a bit far from the plunger-like ejection member 14 , When pushing in the ejector 14 becomes the ejection spring 17 curious whose spring force during subsequent release and an associated ejection of the control ring and thus the ejection member 14 ejects. This will get the locking members 20a -D back to the sloping surfaces 41 on the material strip 40a -D between the Hub-guide grooves, but from there get into a not used when retracting other stroke-guide 32a -D, whereby the control ring again a little way opposite the ejector 14 twisted. Due to the large number of locking members as well as for Hub-guide and locking grooves 34a -H is the friction that occurs when turning the control ring between it and the housing base 15 , the leadership assignment 16 and the ejector 14 arises limited to a minimum, since here relatively short distances are sufficient to the respective locking members 20a -D move from one track to the next.

As in particular in 9 shown, then ejecting the ejection member 14 , which ultimately causes an ejection of the movable furniture part.

During the subsequent re-pushing of the movable furniture part and re-insertion of the ejector 14 that gets into 10 shown locking member again on the same stroke guide 32a back and hits the slanted surface 37 on the material strip 36a -H between the latching guide grooves 34a -H. There will be the locking member 20a but not in the previously used latching guide 34a retracted but in the circumferential direction in the next latching guideway 34b , From there comes the locking member 20a back to the slanted surface 41 and comes at the stage 42 to the plant, whereby the detent position 18 of the ejector 14 is reached.

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

• WO 2006/066774 A1 [0002]

Claims (17)

Device for opening and closing a movable furniture part, in particular a drawer, door or flap, with an ejection unit ( 12 ), which is a housing ( 13 ) and one in the housing ( 13 ) movably mounted ejection member ( 14 ), over which the movable furniture part can be pressed in a predetermined distance and then ejected, wherein in the housing ( 13 ) at least one lifting guideway ( 31a -D) for at least one during the movement of the ejection member ( 14 ) with moving and the ejection member ( 14 ) when entering a detent position ( 18 ) in the housing ( 13 ) locking catch member ( 20a D), characterized in that more than two lifting guideways ( 31a -D) provided by at least two locking members ( 20a -D) during the entry and exit stroke of the ejection member ( 14 ) are usable. Apparatus according to claim 1, characterized in that at least four lifting guideways ( 31a -D) are provided. Device according to one of claims 1 or 2, characterized in that two or four locking members ( 20a -D) are provided. Device according to one of the preceding claims, characterized in that on the ejection member ( 14 ) a control ring ( 21 ) is rotatably mounted, the at least two locking members ( 20a -D). Apparatus according to claim 4, characterized in that the latching members ( 20a -D) from a lateral surface ( 22 ) of the control ring ( 21 ) protrude radially outward. Apparatus according to claim 4 or 5, characterized in that when more than two locking members ( 20a -D) these at regular intervals over the scope of the control ring ( 21 ) are arranged distributed. Device according to one of the preceding claims, characterized in that in the housing ( 13 ) more than two, each one stroke guideway ( 31a -D) associated latching guideways ( 33a -H) are formed, which upon engagement of the associated locking member ( 20a -D) into and out of the detent position ( 18 ) are usable. Apparatus according to claim 7, characterized in that the latching guideways ( 33a H) shorter, in particular less than half as long as the lifting guideways ( 31a -D) are. Apparatus according to claim 7 or 8, characterized in that per stroke guideway ( 31a -D) two latching guideways ( 33a -H) are provided, one of which when engaged and the other when disengaging the locking member ( 20a -D) is usable. Device according to one of the preceding claims, characterized in that the housing ( 13 ) a housing base part ( 15 ) and one in the housing base part ( 15 ) used leadership ( 16 ) having. Apparatus according to claim 10, characterized in that the lifting guideways ( 31a -D) on the housing base part ( 15 ) and the latching guideways ( 33a -H) on the leadership assignment ( 16 ) are formed. Apparatus according to claim 11, characterized in that the lifting guideways ( 32a D) in an inner wall of the housing base part ( 15 ) are formed, in particular components molded there Hub-guide grooves ( 32a -D) are. Apparatus according to claim 11 or 12, characterized in that the latching guideways ( 33a -H) components of in leadership use ( 16 ) trained to the free end of the leadership ( 16 ) open latching guide slots ( 34a -H). Device according to one of claims 10 to 13, characterized in that the housing base part ( 15 ) and the leadership ( 16 ) are detachably connected or connected to one another via a releasable latching and / or snap connection. Apparatus according to claim 14, characterized in that the housing base part ( 15 ) has at one end a passage opening through which the ejection member ( 14 ) is led out of the housing, wherein the latching and / or snap connection at the end of the housing base part ( 15 ) which is opposite to the end provided with the passage opening. Furniture part, in particular drawer, characterized by a device ( 11 ) according to one of claims 1 to 15. Furniture, comprising at least one movable furniture part, in particular a drawer, characterized by a device ( 11 ) according to one of claims 1 to 16.

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