IMMOBILIZATION DEVICE FOR LOCKING A FURNITURE PART MOVABLY SUPPORTED IN OR ON AN ARTICLE OF FURNITURE
The invention relates to an immobilization device for locking a furniture part that is movably supported in or on a piece of furniture, particularly a drawer, in a closed end position, comprising at least one locking element, which has a receiving element for an engagement element, wherein the receiving element or the engagement element is disposed on the piece of furniture and the other element is disposed on the movable furniture part, and the two elements are operatively connected at least in the closed end position of the movable furniture part, wherein the relative position of the receiving element to the engagement element in the depth of the piece of furniture can be varied in a linear fashion by means of an adjusting unit, which is configured to convert a rotational movement into a translatory movement.
The invention concerns an immobilization device for arresting a furniture part movably supported in or on an article of furniture, in particular a drawer, in a closed end position, comprising at least one locking unit having a receiving element for an engagement element, wherein the receiving element or the engagement element is arranged on the article of furniture and the other element is arranged on the movable furniture part and the two elements are operatively connected at least in the closed end position of the movable furniture part.
Such immobilization devices are known per se and serve to be able to adjust the front gap which exists in the closed end position between the inside of the front panel and the front end faces of the walls of the body or carcass of an article of furniture.
Thus for example GB 21 74 139 A discloses a closing device for a door of an article of furniture in which the engagement element is formed by a ball which is arranged on the door and which is caught by a locking unit arranged on the furniture carcass. The ball is fixed on a screwthreaded bar whereby the position of the balls is variable in relation to the depth of the article of furniture, whereby the remaining front gap between the door and the furniture carcass is adjustable. That solution has been found to suffer from the disadvantage of the short displacement travel and inaccurate adjustability of the engagement element.
Therefore the object of the invention is to provide an immobilization device of the general kind set forth, which on the one hand permits an uncomplicated change in the front gap and which on the other hand has a structurally simple and exact adjustment mechanism.
According to the invention that object is attained in that the relative position of the receiving element with respect to the engagement element is linearly variable in the depth of the article of furniture by means of a displacement device adapted to convert a rotary movement into a translatory movement.
The fact that according to the invention it is now only the position of the receiving element which in a preferred embodiment of the invention is supported rotatably at the locking unit between a first position of releasing the engagement element and the second position of arresting the engagement element has to be altered to adapt the front gap affords a more stable structure which is easy to adjust, in comparison with the state of the art.
A solution which is technically simple to implement is afforded if at least one locking unit includes a slide portion supported linearly movably with respect to a base portion and the receiving element is arranged on said slide portion, wherein it has proven to be advantageous if the displacement device for altering the relative position of the receiving element is of such an arrangement and configuration that it acts directly on the slide portion. In that case it is particularly desirable if the receiving element is arranged rotatably on the linearly movable slide portion.
Such an arrangement provides that the two functions—pivotal movement of the receiving element and altering the position of the receiving element in relation to the depth of the article of furniture—are implemented by way of different mechanisms, whereby it is possible to achieve overall an increase in stability and at the same time simplification in structure.
In accordance with a further embodiment of the invention the locking unit includes a blocking mechanism for releasably fixing the preferably rotatably supported receiving element in a position of arresting the engagement element. In that case release of the arresting action of the engagement element by means of the receiving element in the closed end position of the movable furniture part is effected by a force acting on the furniture part or by movement of the furniture part in the closing direction, for which purpose it has proven to be desirable if the blocking mechanism has a preferably cardioidal sliding guide track or a pawl.
If the locking unit has a slide portion supported linearly movably with respect to a base portion, in accordance with a further embodiment of the invention it can be provided that the blocking mechanism is of such an arrangement and configuration that it acts between the linearly movable slide portion and the receiving element which is preferably arranged rotatably thereon and the linearly movably supported slide portion has a preferably cardioidal sliding guide track.
In a preferred embodiment the displacement device has a rotatably supported actuating element, wherein the axis of rotation of the actuating element extends substantially normal to the main plane of the locking unit.
A further embodiment of the invention provides that the actuating element is rotatably supported on the base element of the locking unit in such a way that the actuating element is operatively connected to guide means arranged on the linearly movably supported slide portion, preferably by way of a spiral-shaped sliding guide track. In that way, on the one hand comfortable operation of the displacement device is made possible and on the other hand a stepless change in the position of the receiving element is ensured, which, if it is of a self-locking nature, remains in any position once set without further involvement.
Although it would basically be possible for the receiving element to be arranged on the article of furniture and the engagement element on the movable furniture part, a preferred embodiment of the invention provides that the receiving element is arranged on the movable furniture part and the engagement element is arranged stationarily on the article of furniture.
In that respect a structurally simple solution is afforded if the engagement element has a plate-shaped main element having a pin which is provided thereon and whose longitudinal axis extends substantially normal to the main plane of the main element.
A particularly space-saving embodiment of the invention further provides that the engagement element is arranged stationarily on the carcass rail of a guide system for a drawer forming the movable furniture part. In that case it has been found particularly desirable if the at least one locking unit is arranged on the drawer underside. If the immobilization device is arranged in the region of the front of the article of furniture in the closed end position of the movable furniture part, that provides for particularly convenient and comfortable accessibility to the immobilization device for the fitter or a user.
A preferred embodiment of the invention further provides that the immobilization device has at least two locking units which are operatively connected together by way of a synchronization mechanism, wherein the synchronization mechanism has at least two coupling elements respectively associated with different locking units and at least one synchronization unit and the coupling elements are motionally coupled by means of the synchronization unit.
Such a configuration ensures that locking of the receiving elements with the engagement elements substantially simultaneously unlocks the two locking units on both sides of the movable furniture part independently of the position at which the user exerts the force on the front panel in the closing direction of the movable furniture part, that is to say irrespective of whether the user presses against the front panel at the right or the left or in the center or at the right or the left, by virtue of the coupling effect.
A structurally simple solution is afforded if the synchronization unit has a stationarily arranged base element on which a synchronization element is rotatably movably supported, wherein in accordance with a first variant the synchronization element is formed by a gear and the synchronization unit has two racks which are mounted movably with a translatory movement on the base element and which are in engagement on opposite sides with the synchronization element and are or can be respectively connected in an end portion to a coupling element.
It will be appreciated that other synchronization elements are also conceivable. Thus the synchronization element could be formed for example by a double-armed lever.
To allow damage-free opening of the movable furniture part even when the receiving element is fixed by means of the blocking mechanism in a position of arresting the engagement element, a further embodiment of the invention provides that at least one locking unit has an overload safety mechanism including at least two parts which are movably connected together.
In that respect in a further embodiment of the invention it is provided that the overload safety mechanism has two parts which are rotatably movably connected to each other and which are pivotable between a first end position and a second end position, and between which a holding device is operative for releasably holding or for returning the parts which are rotatably connected together in or into the first end position.
If in a further embodiment of the invention the receiving element has a base element and a locking element movably connected to the base element, wherein the blocking mechanism acts on the base element, it has proven desirable if the at least two movably interconnected parts of the overload safety mechanism are formed by the base element and by the locking element of the receiving element, thereby providing a structurally simple solution.
Although implementation of the concept of the invention is also possible when only one of the two locking units has a blocking mechanism or an overload safety mechanism, a preferred embodiment of the invention provides that each locking unit includes a blocking mechanism and/or an overload safety mechanism.
The invention further concerns a lockable ejector device for a furniture part supported movably in or on an article of furniture, comprising an ejector element acted upon by a force storage means, and an immobilization device.
Such a lockable ejector device permits opening of a handle-less movable furniture part at least to such an extent that it is possible to grip behind the front panel and to open the movable furniture part even without the presence of a handle fitment. In that case unlocking of the ejector device can be effected for example by way of a button or in the case of so-called touch-latch fitments by exerting a pressure on the front panel in the closing direction of the movable furniture part.
In that respect in a preferred embodiment of the invention it is provided that locking of the ejector device is effected by means of the blocking mechanism for the receiving element.
In a further embodiment of the invention it can be provided that the ejector device or the ejector element is arranged on the locking unit.
In an alternative embodiment of the invention however the ejector device or the ejector element is arranged separately from the immobilization device on the movable furniture part, in which respect it has proven to be desirable if the ejector device or the ejector element is arranged in the guide system for a drawer forming the movable furniture part, preferably on the carcass rail.
The invention further concerns an article of furniture having an immobilization device as set forth in one of claims 1 through 26 as well as an article of furniture having a lockable ejector device as set forth in one of claims 27 through 29.
Further advantages and details of the invention are described more fully by means of the specific description hereinafter with reference to the embodiments illustrated in the drawing in which:
In order to be able to change the front gap F corresponding to the spacing between the front panel 3 and the furniture carcass 4 in the closed end position E of the movable furniture part 2 and thus the release travel for the touch-latch mechanism, in the embodiment illustrated in
The displacement device 9 is adapted to convert a rotary movement into a translatory movement and for that purpose has a rotatably supported actuating element 12, the axis of rotation f of which extends substantially normal to the main plane of the locking unit 6, and which in the illustrated embodiment acts directly on the linearly movably supported slide portion 10.
Starting from the position shown in
The carcass rail 13 which is arranged or which is to be arranged on the furniture carcass 4 is shown in
The engagement element 8 shown in
If now starting from the closed end position E shown in
The coupling of the two locking units 6 arranged at opposite sides on the movable furniture part 2, by way of a synchronization mechanism 24, ensures that the removal of the locking action and thus triggering of the ejector device takes place substantially simultaneously, irrespective of the position on the front panel 3 at which the user applies the necessary triggering force in the closing direction SR of the movable furniture part 2.
For that purpose the synchronization mechanism 24 has a synchronization unit 27, wherein the receiving elements 7 of the locking units 6 are connected to the synchronization unit 27 by way of coupling elements 26 which are coupled for movement in opposite relationship by means of the synchronization unit 27.
In the embodiments shown in
For the purpose, as shown in
In the positions shown in
A first preferred embodiment of a synchronization unit 27 is shown as a perspective view in
For fixing the synchronization unit 27 to the movable furniture part 2 the base element 28 has through openings 34 which in the illustrated embodiment are in the form of slots. The synchronization unit 27 is connected to the coupling elements 26 by way of receiving openings 35 provided in the outer end portions of the racks 30.
A further embodiment of a synchronization unit 27 is shown in
In this embodiment the main element 41 has two through openings 39 for receiving fixing means 36 with which the main element 41 is fixed to the movable furniture part 2. The receiving openings 40 also arranged on the main element 41 serve for fixing the intermediate element 42 to the main element 41. For that reason slots 34 are provided on the intermediate element 42, wherein in the illustrated embodiment fixing of the intermediate element 42 to the main element 41 is effected by way of a guide pin 38 and a fixing element 37.
This structure avoids the racks 30 or the coupling elements 26 being stressed by screwing of the base element 28 to the underside 25 of the movable furniture part 2, for example at the bottom of a drawer. By virtue of the two-part structure of the base element 28, in a first step the main element 41 can be mounted on the underside 25 of the movable furniture part 2, in which case the fixing element 37 formed by a clamping screw, for arresting the intermediate element 42, is firstly released and it is only after mounting of the synchronization unit 27 to the movable furniture part 2 that it is tightened in a further step, which permits substantially stress-free mounting of the synchronization unit 27.
The
The synchronization element 29 is in turn mounted rotatably on the base element 28. As is already the case with the above-described embodiments the movements of the receiving elements 7 are transmitted by way of the coupling elements 26 to the synchronization unit 27, but it will be noted that in this embodiment the coupling elements 26 are connected directly to the synchronization element 29. Just as in the embodiments with two racks 30 and a gear, in this embodiment also the two coupling elements 26 are coupled in respect of movement in opposite relationship by way of the synchronization element 29 formed by a double-armed lever.
An immobilization device 5 in which the two locking units 6 are synchronously coupled together by way of a synchronization mechanism 24 having a synchronization unit 27 and two coupling elements 26 is shown as a view from above in
The locking unit 6 in the embodiment of
The receiving element 7 is mounted to the slide portion 10 rotatably about the axis of rotation d, wherein in the illustrated embodiment the receiving element 7 is of a two-part structure and has a rotatably supported base element 43 and a locking element 44 rotatably hingedly connected to the base element 43. The base element 43 and the locking element 44 form at the same time the two hingedly connected parts of an overload mechanism 32 and are connected together by way of a holding device 33 formed by a tension spring.
In the illustrated embodiment the blocking mechanism 31 for arresting the receiving element 7 in a position s1 of arresting the engagement element 8 includes a sliding guide track 45 and is operative between the linearly movable slide portion 10 and the receiving element 7 which is rotatably supported thereat and which is acted upon by a spring 46.
A further embodiment of a locking unit 6 is shown as an exploded view in
In this case, starting from the position shown in
In the embodiment shown in
The embodiment shown in
A very similar embodiment is shown in
This configuration has the advantage that the separation force between the two parts 50, 51 of the holding device 33 is increased as—as can be seen in particular from
Reference is now made to
Starting from
The movement of the movable furniture part 2 into the release position provides that the blocking mechanism 31 formed by a sliding guide track 45 is released whereby the base element 43 is pivoted so that the pin 15 of the engagement element 8 is released by the locking element 44 (
In this respect
In
If now as shown in
The open position in
It will be appreciated that the illustrated embodiments of immobilization devices for arresting a movable furniture part and lockable ejector devices for a movable furniture part are not to be interpreted in a restrictive sense but in fact are only individual examples of numerous possible ways of implementing the concept of the invention of an immobilization device or a lockable ejector device for a movable furniture part.
Claims
1. An immobilization device for arresting a furniture part movably supported in or on an article of furniture, in particular a drawer, in a closed end position, comprising at least one locking unit having a receiving element for an engagement element, wherein the receiving element or the engagement element is arranged on the article of furniture and the other element is arranged on the movable furniture part and the two elements are operatively connected at least in the closed end position of the movable furniture part, wherein the relative position of the receiving element with respect to the engagement element is linearly variable in the depth of the article of furniture by means of a displacement device adapted to convert a rotary movement into a translatory movement.
2. An immobilization device as set forth in claim 1 wherein the receiving element is supported rotatably on the locking unit between a first position of releasing the engagement element and a second position of arresting the engagement element.
3. An immobilization device as set forth in claim 1 wherein at least one locking unit includes a slide portion supported linearly movably with respect to a base portion and the receiving element is arranged on said slide portion
4. An immobilization device as set forth in claim 3 wherein the displacement device for altering the relative position of the receiving element is of such an arrangement and configuration that it acts directly on the slide portion.
5. An immobilization device as set forth in claim 3 wherein the receiving element is arranged rotatably on the linearly movable slide portion.
6. An immobilization device as set forth in claim 1 wherein the locking unit includes a blocking mechanism for releasably fixing the preferably rotatably supported receiving element in a position of arresting the engagement element.
7. An immobilization device as set forth in claim 6 wherein arresting of the engagement element by means of the receiving element in the closed end position of the movable furniture part is releasable by a force acting on the furniture part or by movement of the furniture part in the closing direction.
8. An immobilization device as set forth in claim 6 wherein the blocking mechanism has a preferably cardioidal sliding guide track or a pawl.
9. An immobilization device as set forth in claim 6 wherein the blocking mechanism is of such an arrangement and configuration that it acts between the linearly movable slide portion and the receiving element which is preferably arranged rotatably thereon.
10. An immobilization device as set forth in claim 9 wherein the linearly movably supported slide portion has a preferably cardioidal sliding guide track.
11. An immobilization device as set forth in claim 1 wherein the displacement device has a rotatably supported actuating element.
12. An immobilization device as set forth in claim 11 wherein the axis of rotation of the actuating element extends substantially normal to the main plane of the locking unit.
13. An immobilization device as set forth in claim 11 wherein the actuating element is rotatably supported on the base element of the locking unit in such a way that the actuating element is operatively connected to guide means arranged on the linearly movably supported slide portion, preferably by way of a spiral-shaped sliding guide track.
14. An immobilization device as set forth in claim 1 wherein the receiving element is arranged on the movable furniture part and the engagement element is arranged stationarily on the article of furniture.
15. An immobilization device as set forth in claim 14 wherein the engagement element has a plate-shaped main element having a pin which is provided thereon and whose longitudinal axis extends substantially normal to the main plane of the main element.
16. An immobilization device as set forth in claim 14 wherein the engagement element is arranged stationarily on the carcass rail of a guide system for a drawer forming the movable furniture part.
17. An immobilization device as set forth in claim 16 wherein the at least one locking unit is arranged on the drawer underside.
18. An immobilization device as set forth in claim 1 wherein the immobilization device is arranged in the region of the front of the article of furniture in the closed end position of the movable furniture part.
19. An immobilization device as set forth in claim 1 wherein the immobilization device has at least two locking units which are operatively connected together by way of a synchronization mechanism, wherein the synchronization mechanism has at least two coupling elements respectively associated with different locking units and at least one synchronization unit and the coupling elements are motionally coupled by means of the synchronization unit.
20. An immobilization device as set forth in claim 19 wherein the synchronization unit has a stationarily arranged base element on which a synchronization element is rotatably movably supported.
21. A immobilization device as set forth in claim 20 wherein the synchronization element is formed by a gear and the synchronization unit has two racks which are mounted movably with a translatory movement on the base element and which are in engagement on opposite sides with the synchronization element and are or can be respectively connected in an end portion to a coupling element.
22. An immobilization device as set forth in claim 1 wherein at least one locking unit has an overload safety mechanism which includes at least two parts which are movably connected together and which allows damage-free opening of the movable furniture part even when the receiving element is fixed by means of the blocking mechanism in a position of arresting the engagement element.
23. An immobilization device as set forth in claim 22 wherein the overload safety mechanism has two parts which are rotatably movably connected to each other and which are pivotable between a first end position and a second end position and between which a holding device is operative for releasably holding or for returning the parts which are rotatably connected together in or into the first end position.
24. An immobilization device as set forth in claim 1 wherein the receiving element has a base element and a locking element movably connected to the base element, wherein the blocking mechanism acts on the base element.
25. An immobilization device as set forth in claim 24 wherein the at least two parts of the overload safety mechanism, that are movably connected together, are formed by the base element and the locking element of the receiving element.
26. An immobilization device as set forth in claim 19 wherein each locking unit includes a blocking mechanism and/or an overload safety mechanism.
27. A lockable ejector device for a furniture part supported movably in or on an article of furniture comprising an ejector element acted upon by a force storage means and an immobilization device as set forth in claim 1, wherein locking of the ejector device is effected by means of the blocking mechanism for the receiving element.
28. An ejector device as set forth in claim 27 wherein the ejector device or the ejector element is arranged on the locking unit.
29. An ejector device as set forth in claim 27 wherein the ejector device or the ejector element is arranged separately from the immobilization device on the movable furniture part or on the article of furniture.
30. An ejector device as set forth in claim 29 wherein the ejector device or the ejector element is arranged in the guide system for a drawer forming the movable furniture part, preferably on the carcass rail.
31. An article of furniture comprising an immobilization device as set forth in claim 1.
32. An article of furniture comprising a lockable ejector device as set forth in claim 27.
Type: Application
Filed: Sep 2, 2010
Publication Date: Dec 30, 2010
Inventors: Bernd KOENIG (Hoch), Martin During (Schruns)
Application Number: 12/874,518
International Classification: A47B 95/00 (20060101); A47B 88/12 (20060101);