EP2814358A1

EP2814358A1 - Spring-loaded drive device for a movable furniture element

Info

Publication number: EP2814358A1
Application number: EP13709290.4A
Authority: EP
Inventors: Ingo Gasser; Fredi Dubach
Original assignee: Julius Blum GmbH
Current assignee: Julius Blum GmbH
Priority date: 2012-02-15
Filing date: 2013-02-13
Publication date: 2014-12-24
Anticipated expiration: 2033-02-13
Also published as: WO2013120119A1; AT512616B1; AT512616A1; MY172877A; US20140346941A1; JP2015510421A; JP5926405B2; CN104114060A; EP2814358B1; US9204721B2

Abstract

Spring-loaded drive device (10) for a movable furniture element (101), especially a drawer (102), comprising a mechanical deactivation device (1) with which the drive device (10) can be reversibly deactivated.

Description

Spring-loaded drive device for a movable furniture part

The invention relates to a spring-loaded drive device for a movable furniture part, in particular a drawer.

Furthermore, the invention relates to a piece of furniture with a drive device for a movable furniture part - in particular a drawer - according to at least one of the described embodiments.

Federbeiastete drive devices for movable furniture parts already belong to the prior art. These are often designed as a collection device to pull the movable furniture part to or in the furniture body. Another embodiment of a spring-loaded drive device is ejection devices that move the movable furniture part out of the furniture body or away from the furniture body to make the operation of the furniture more comfortable.

The object of the invention is to provide an improved, spring-loaded drive device for a movable furniture part and an improved furniture with such a drive device.

This object is achieved with a drive device having the features of claim 1 and with a piece of furniture having the features of claim 8. By forming a mechanical deactivating device with which the drive device can be reversibly deactivated, the drive device can be deactivated when not in use and does not need to be specially removed for this purpose. Due to the configuration of the reversibility, the drive device can also be reactivated at any time in order to drive the movable furniture part again. Thus, neither removal nor reinstallation is necessary and to achieve this functionality for a drive device.

The drive device is thus paralyzed only temporarily. Their function is maintained, but is shut down, making it unnecessary to remove the drive device, if you do not want to use them for a certain time. It should be noted that this is not about switching on or off electrically, but rather about deactivating an assembly mechanically and not by electrical means. Further advantageous embodiments of the invention are defined in the dependent claims.

To be particularly advantageous, it has been found that the deactivating device is switchable between two mechanical switching positions, wherein a first Schartstellung activates the drive device and a second switching position deactivates the drive device. The formation of switching positions a comfortable activation or deactivation of the drive device can be achieved.

According to a preferred embodiment it can be provided that the switchover from the first switching position, in which the drive device is activated, to the second switching position, in which the drive device is deactivated, takes place automatically mechanically. Due to the automatic mechanical switching from the first switching position to the second switching position no manual operation is necessary, thus saving time and thus costs.

Protection is also desired for a piece of furniture with a drive device for a movable furniture part - in particular a drawer - according to at least one of the described embodiments. A particularly advantageous, constructive variant provides that the automatic mechanical switching by the second drive device during the first movement of the movable furniture part - preferably the drawer - takes place after the installation of the second drive device. The fact that the automatic switching takes place during the first movement of the movable furniture part, no separate step is necessary to perform the switch, as this can be done at the same time in the usual use of the movable furniture part. Further details and advantages of the present invention will be explained in more detail below with reference to the description of the figures with reference to the exemplary embodiments illustrated in the drawing. 1 shows a perspective view of a piece of furniture with three

drawers

Fig. 2 is an exploded perspective view of a

Rail extension guide with two drive devices

Fig. 3 is a perspective view of a Schienenausziehführung with two drive devices

4 shows a detailed view of FIG. 3

5 shows a further detail view of FIG. 3

Fig. 6 is a further perspective view of a

Rail extension guide with two drive devices

7 is a detail view of FIG .. 6

8 is a detail view of FIG. 6th

Fig. 9 is a further perspective view of a

Rail extension guide with two drive devices

10 is a detail view of FIG. 9th

Fig. 11 is a further perspective view of a

Rail extension guide with two drive devices

12 is a detail view of FIG. 11th

Fig. 13 is a further perspective view of a

Rail extension guide with two drive devices

14 is a detail view of FIG. 13th

15 is a detail view of FIG. 13th

Fig. 16 is a perspective view of the deactivation device in the active position

Fig. 17 is a perspective view of the deactivating device in the deactivated position

Fig. 18 is an exploded perspective view of

deactivation device

19 is an exploded perspective view of a

Rail extension guide with two drive devices Fig. 20 to Fig. 22 are plan views of a Schienenausziehvorrichtung with a deactivator in different positions of the drive device

Fig. 23 and 24 are schematic representations of a drive device in different positions

FIG. 25 is a perspective view of the drive device of FIG.

23 and 24

26 to 29 are plan views of schematic representations of a spring-loaded drive device and its deactivation device

Fig. 30 is an exploded perspective view of the spring-loaded

Drive device of FIG. 28.

FIG. 31 is a perspective view of the drive device of FIG.

28

Fig. 32 to Fig. 34 Schematic representation of a variant of a

Figure 1 shows a perspective view of a piece of furniture 100. The furniture 100 has a furniture body 103 and arranged therein three movable furniture parts 101, which in this embodiment as Drawers 102 are formed on. Thus, the drawers 102 can be pulled out of the furniture body 103 and pushed back into it, each drawer has two Schienenausziehführungen 50 (not visible). On the Schienenausziehführungen 50 per drawer at least one spring-loaded drive device is formed, with which the drawer 102 can be automatically ejected or retracted.

Now, if the retrofitting of a second drive device 20 is desired, it can be retrofitted in the furniture 100. Such a second drive device 20 preferably has an ejection device and a collection device. Thus, the two drive devices 10 and 20 do not affect each other, it would be necessary to remove the original drive device 10 itself. Since this is not desirable due to the high cost, the drive device 10 is not shown here Deactivation device 1, with which the drive device 10 is reversibly deactivated.

Figure 2 shows an exploded perspective view of the Schienenausziehführung 50. The Schienenausziehführung 50 has, among other things, the drawer rail 51, the middle rail 52 and the carcass rail 53, with the softer rail extension guide 50 is attached to the furniture body. At the carcass rail 53 while the drive device 10 is formed, with which the drawer can be retracted in this preferred embodiment.

The second drive device 20 is retrofitted to equip the rail extension guide 50 with both a drive device for ejecting the drawer and a drive device for drawing in the drawer. For this purpose it is necessary to deactivate the first drive device 10.

On the second drive device 20, a nose 22 is formed on the base plate 21, which can engage in the first drive device 10 and can actuate the deactivation device 1 with its nose 22 as a trigger. FIG. 3 shows a perspective view of the rail extension guide 50 with the first drive device 10 and with the second drive device 20 already mounted.

FIG. 4 shows the nose 22 on the base plate 21 of the second drive device 20.

In the situation shown here, the deactivation device 1 has not yet been actuated, since the coupling element 5 is still in the driver 11 of the drive device 10 and thus a mechanical connection between the coupling element 5 and the drive device 10 is given.

In the figures 6 to 8 is now shown how the nose 22 of the second drive device 20 of the deactivator 1 approaches. This situation occurs when the drawer is pulled out of the furniture body 103 the first of May after installation of the second drive device 20.

In the figures 9 and 10 is now shown how the drawer was pulled out the first time since the installation of the additional drive device 20 so far that the nose 22 of the second drive device 20 meets the pivotable coupling element 5 of the deactivating device 1, but this in this one 10 has not yet switched, the deactivating device 1 is still in its first switching position 2 in which the drive device 10 is still active.

Now, if the Schienenausziehführung 50 pulled a little further - as shown in Figures 11 and 12, so causes the nose 22 of the second drive device 20, the shadable coupling element 5 to pivot 90 °, whereupon the coupling element 5 is no longer with the not shown here driver 11 of the first drive device 10 may correspond - as can be seen well from the figure 14. The deactivating device 1 is now in its second switching position 3 in which the drive device 10 has been deactivated.

In the figures 13 to 15, the situation is shown in which the drawer or the Schienenausziehführung 50 has been pulled out so far that the deactivating device 1 has been switched and thus the first drive device 10 has been reversibly deactivated.

FIG. 16 shows a perspective view of the deactivating device 1. The deactivating device 1 has the switchable coupling element 5, its holder 4 and the spring 6, which runs through a bore 7 in the coupling element 5. In the figure 16 it is shown that the deactivating device 1 has not yet been operated, the deactivating device 1 is thus still in its first switching position 2 in which the drive device 10 is still active.

In contrast to Figure 17, where the deactivating device 1 has been operated by the coupling element 5 has been pivoted and thus the coupling element 5 is no longer in engagement with the driver 11 of the drive device, not shown here 10 can get. The deactivating device 1 is now in its second switching position 3 in which the drive device 10 has been deactivated. FIG. 18 shows a perspective exploded view of the deactivating device 1. The spring 6 serves to ensure that the coupling element 5 remains in the desired switched position and can not automatically switch over again.

FIG. 19 shows a perspective exploded view of a further exemplary embodiment. This embodiment also has a Schienenausziehführung 50 and the associated rails - the drawer rail 51. the middle rail 52 and the cabinet rail 53 - on. On the carcass rail 53, the drive device 10 is also formed again. The second drive device 20 can be retrofitted and has the base plate 21 on which the deactivating device 1 is formed.

FIG. 20 shows the drive device 10, which has the driver 11 and the springs 12 with which the drive device 10 is driven.

In order for the drive device 10 to be able to drive a coupling element (not illustrated), it moves, as shown in FIG. 21, into its standby position 14, in which the driver 11 waits for the coupling element. However, since the deactivating device 1 - in the form of the nose 22 - is now located at the ready position 14, the driver 11 can not reach its ready position 14 in order to wait for the coupling element (the deactivating device 1 is thus in its second switching position 3) the drive device 10 has been deactivated). Whereupon the driver 11 is again withdrawn from the springs 12 of the drive device 10 without the coupling element being taken along. Thus, the drive device 10 has been deactivated by the deactivation device 1. If you want to activate the drive device 10 again, so only the nose 22 of the deactivation device 1 must be removed, whereupon the drive device 10 can perform their normal function again. Another embodiment of a deactivation device 1 for a drive device 10 is shown in FIGS. 23 to 31.

In this case, the drive device 10 in turn, the spring 12 and the driver 11, which is spring-loaded by the spring 12 and the Koppeleiement 5 can act with force. The driver 11 is guided in a guide track 13. If the guide actuator 17 is in its normal working position, then the driver 11 can wait for the coupling element 5 to arrive in its ready position 14, since this readiness position 14 is designed as a self-locking, lockable position, which can be achieved by the appropriate dimensioning of the radius of the guideway 13 (friction). The deactivation device 1 is therefore still in its first switching position 2 in which the drive device 10 is still active (FIGS. 23 to 26). Reversible deactivation of the drive device 10:

By rotating the guide divider 17 (see Figures 27 and 28), the guideway 13 changes by it comes to a replacement of the ready position 14, which now has a larger radius than the standby position in working position of the drive device 10 (Figure 28). Now, if the driver 11 (Figure 29) in this new standby position 15 - which is no longer self-locking - so the driver 11 does not dwell in this position to wait for the Koppeleiement 5, but 12 is automatically retracted by the spring force of the spring , the drive device 10 is thus deactivated. The rotation of the guide plate 17 is effected by loosening the Klemmhebeis 16 (Figure 27) and then rotating the guide plate 17 and again closing the clamping lever 16 (Figure 28). The deactivating device 1 is thus now in its second switching position 3 in which the drive device 10 has been deactivated (FIGS. 28 to 31).

If it is desired to reactivate the drive device 10, only the clamping lever 16 must be disengaged, the guide plate 17 again rotated to exchange the non-locking position 15 against the self-locking standby position 14, which can be achieved by a rotation through 180 ° of the guide plate 17 , Subsequently, the clamping lever 16 is closed again. FIG. 25 shows a drive device 10 in the activated state, FIG. 31 shows the drive device 10 in the deactivated state. Another embodiment of a deactivatable drive device 10 is shown in FIGS. 32 to 34.

In this case, the driver 11 of the drive device 10 is equipped with a pivoting driving lug 18. The deactivating device 1 is still in its first switching position 2 in FIG. 32 in which the drive device 10 is still active. If the pivotable driving lug 18 is tilted out of its normal working position (FIG. 33), the driver 11 can no longer take the coupling element 5 with it (see FIG. 34). Thus, the drive device 10 is deactivated by the deactivating device 1 and is in its second switching position 3. To re-activate the drive device 10, only the pivotable driving lug 18 must be pivoted to its normal working position (Figure 32), whereupon the drive device returns to its normal position Exercise function.

Another embodiment of a deactivatable drive device 10 is shown in FIGS. 35 to 39.

In this embodiment is not deactivated as just in Figures 32 to 34 of the driver, or deactivated as in Figures 23 to 31, the guideway, or deactivated as in Figures 19 to 22, the standby position, or as in Figures 2 to 19 Coupling element 5 deactivated, but here the base 33 of the spring 12 of the drive device 10 is now deactivated by the base 33 of the drive device 10 is not rigid, but may extend in a guide 30, if the deactivating device 1 - which the pivotable locking element 31st has been pivoted.

The normal function of the drive device 10 is shown in FIGS. 35 and 36; if the pivotable blocking element 31 is pivoted, the base 33 can be moved in the guide 30 (FIG. 38), whereupon the driver 11 is no longer sufficiently supported by the spring 12 is spring loaded and thus the coupling element 5 can not move. Thus, the driver 11 can be moved verklemmungsfrei again on its guideway 13, the base 33 is spring-loaded via the return spring 32, whereby the driver 11 and the base 33 - can reach their starting position - without the coupling element 5. Thus, the drive device 10 is deactivated.

If the drive device 10 is again desired to be activated, only the pivotable blocking element 31 is to be used, whereupon the base 33 is again fixed in the guide 30 and the drive device 10 can again perform the normal function (FIGS. 35 and 36).

In the figures 2 to 39 some variants are shown how a drive device 10 can be reversibly deactivated. It goes without saying that there are many other possibilities for reversibly deactivating a drive device. So it would be conceivable, for example, that one pivots the guideway of the driver, whereupon the driver can not be moved, or that one expands the spring of the drive device or its driver and - should you want to take about the drive device back into operation - these parts again installs. Of course, these are not desired embodiments, since they would be extremely expensive and thus are not applicable in practice.

The preferred embodiments are thus those in which the deactivation or activation takes place automatically, namely simply by the installation of the second drive device or by the removal of the second drive device, whereupon the first drive device is active again (embodiments of Figures 2 to 18 and Figures 19 to 22).

That for the spring-loaded drive device 10, a mechanical deactivation device 1 is provided, with which the drive device 10 is reversibly deactivated, is particularly well from the figures 12, 21, 29, 34 and 38 and the description thereof.

That this is a retraction device for a movable furniture part, it is apparent from Figures 2, 19, 23, 33, 35 and 37 and their description. That the deactivating device 1 is switchable between two mechanical switching positions 2 and 3, wherein a first switching position 2 activates the drive device 10 and a second switching position 3 deactivates the drive device 10, preferably proceeds from FIGS. 10, 12, 16, 17, 20, 26 , 28, 32, 37 and 38 and their description.

That thereby the switching between these two mechanical switching positions 2 and 3 can be done manually, is apparent from Figures 27, 33 and 38 and their description.

That such a mechanical switching can also take place automatically, in which the first switching position 2, in which the drive device 10 is activated, in the second switching position 3, in which the drive device 10 is deactivated, goes from Figures 12 and 19 and their description out.

That thereby the mechanical deactivating device 1 is formed in the drive device 10 itself, is apparent from Figures 10, 16, 27, 32 and 37 and their description. That the automatic mechanical switching between the two switching positions 2 and 3 by a - subsequently mounted - second drive device 20 is made, it is apparent from Figures 19 and 9 and their description.

That the mechanical deactivating device 1 can also be formed in the second drive device 20 and engages in the first drive device 10 is apparent from the figure 19 and its description.

That the automatic mechanical switching by the second drive device 20 during movement of the movable furniture part 100 - preferably the drawer 102 - takes place, is apparent from Figures 2 to 18 and their description. The fact that this automatic switching takes place the first time the movable furniture 101 is moved is also clear from these figures, and also that this automatic switch-over takes place exclusively when the movable furniture part 101 is moved for the first time.

In all these embodiments, it is such that the drive device 10 purely mechanical, so electrically de-energized is formed.

Claims

1. A spring-loaded drive device (10) for a movable furniture part (101), in particular drawer (102), characterized in that a mechanical deactivation device (1) is provided, with which the drive device (10) can be reversibly deactivated.

2. Drive device according to claim 1, characterized in that the drive device (10) is designed as a retraction device for the movable furniture part (101).

3. Drive device according to claim 1 or 2, characterized in that the drive device (10) is designed as an ejection device for the movable furniture part (101).

4. Drive device according to one of claims 1 to 3, characterized in that the drive device (10) purely mechanically, so electrically de-energized, is formed.

5. Drive device according to one of claims 1 to 4, characterized in that the deactivating device (1) between two mechanical switching positions (2,3) is switchable, wherein a first switching position (2) activates the drive device (10) and a second shading position (3) the drive device (10) deactivated.

6. Drive device according to claim 5, characterized in that the mechanical switching between the two switching positions (2,3) takes place manually.

7. Drive device according to claim 6, characterized in that the mechanical switching from the first switching position (2), in which the drive device (10) is activated, in the second switching position (3), wherein the drive device (10) is deactivated, automatically done.

8. Drive device according to one of claims 1 to 7, characterized in that the mechanical deactivating device (1) in the drive device (10) is formed.

9. furniture (100) with a drive device (10) for a movable furniture part (101) - in particular drawer (102) - according to one of claims 1 to 8.

10. Furniture according to claim 9, characterized in that the automatic mechanical switching between the two Schaltsteliungen (2,3) by a - retrofitted - second drive device (20).

11. Furniture according to claim 10, characterized in that the mechanical deactivating device (1) in the second drive device (20) is formed and in which a first drive device (10) engages.

12. Furniture according to claim 10 or 11, characterized in that the automatic mechanical switching by the second drive device (20) during movement of the movable furniture part (101) - preferably the drawer (102) - takes place.

13. Furniture according to claim 12, characterized in that the automatic mechanical switching by the second drive device (20) during the first movement of the movable Möbelteiis (101) - preferably the drawer (102) - after the installation of the second drive device (20) ,

14. Furniture according to claim 12 or 13, characterized in that the automatic mechanical switching by the second drive device (20) exclusively during the first movement of the movable furniture part (101) - preferably the drawer (102) - after the installation of the second drive device ( 20).