CN106998903A - The unit constituted for the adjusting means of furniture and by least two adjusting meanss - Google Patents

Abstract

One kind is used for furniture, particularly it is used for the adjusting means (1) for adjusting table leg or backrest or lath framework, including the first section bar (2), first section bar (2) is guided to along the longitudinal direction shift on the second section bar (3) or in the second section bar (3), wherein the first section bar (2) can pass through locking device (5, 6) it is locked in along the diverse location of the second section bar (3) to be stopped on load direction, and it can be moved along the regulation direction opposite with load direction, wherein when having reached final position (11) on regulation direction, make locking device (5, 6) it is invalid, and for recovery operation, first section bar (2) can be moved along load direction until original position (10), the locking device (5 at original position (10) place, 6) effectively, wherein, it is provided with spring (12), the spring hinders the first section bar (2) to be moved to final position (11), and and if only if when having overcome spring force, just make locking device (5, 6) it is invalid.

Description

Adjusting devices for furniture and units consisting of at least two adjusting devices

technical field

The invention relates to an adjustment device for furniture (in particular for adjusting table legs or backrests or slatted frames) comprising a first profile guided so that it can longitudinal displacement on or in a second profile, wherein the first profile can be locked in different positions along the second profile by locking means to be blocked in the load direction and can be adjusted in the opposite direction to the load direction movement in which the locking device is deactivated when the end position in the adjustment direction has been reached, and for a recovery operation the first profile can be moved in the load direction up to the starting position in which the locking device is activated. The invention also relates to a unit consisting of at least two adjustment devices.

Background technique

DE 93 10 664 discloses a height-adjustable table on which locking fittings are provided for vertical adjustment purposes, said locking fittings being coupled on one side with the table legs and on the other side with the tabletop. The locking fitting can be adjusted by raising the table top, wherein the table top can be supported in different locking positions. By pulling the table top fully out, the locking fitting can be disabled for a recovery operation to return the table top to the lowest position. In this locking fitting, there is a problem that the user cannot know exactly when the highest locking position has been reached and the locking fitting has been unlocked for recovery operation. Therefore, several adjustment operations may be required. Furthermore, it is not possible to couple two locking fittings to each other, since when the locking fittings are connected in series, once the end position of one locking fitting has been reached, the other locking fitting can no longer perform a holding function.

Contents of the invention

The problem addressed by the present invention is therefore to avoid the aforementioned disadvantages and to provide an adjustment device for furniture which is easy to handle and which also enables the coupling of several adjustment devices.

This problem is solved by an adjusting device having the features of claim 1 and by a unit according to claim 5 consisting of at least two adjusting devices.

The adjusting device according to the invention has a spring which hinders the movement of the first profile into the end position, wherein the locking device is only deactivated when the spring force has been overcome. This ensures that the user cannot inadvertently move the first profile into the end position and disables the locking means for recovery operations. Conversely, the user notices by the resistance of the spring that the last locking position has been reached, and further movement makes it necessary to overcome the spring force. Misoperations can thus be easily avoided. Furthermore, it is also possible to connect the adjusting devices in series, since the locking devices are only deactivated when all the adjusting devices are in the last locking position before the end position. The corresponding spring on the adjustment device ensures that the subsequent locking device is adjusted, the spring force is greater than the force of gravity to adjust the profile.

According to a preferred embodiment, the spring is fixed to the second profile. As a result, the adjusting device can be manufactured using only a small number of components. The spring may be fixed to the second profile and cooperate with the actuating portion on the first profile, for example the spring arm may rest on the actuating portion.

The spring is preferably designed as a leaf spring, so that a compact arrangement in the region of the spring is possible. Alternatively, the spring can be designed as a compression spring or as a tension spring or as a different spring element.

According to another aspect of the invention, a unit consisting of at least two adjustment devices is proposed. In this case, the two adjusting devices can be directly or indirectly coupled to one another. The profile of the first adjusting device can be coupled to the profile of the second adjusting device, wherein on the one hand the two profiles can be fastened directly to each other, or the coupling can be done by inserting additional components such as profile parts of table legs or other accessories. The structure of the two adjusting devices can be identical. The coupling may be configured to ensure that the first adjustment means can only be released from the starting position when the second adjustment means rests on the spring. In this case, sequence control is performed.

When using at least two adjusting devices, the spring forces for blocking the respective end positions are preferably at least approximately equal. It is particularly advantageous if the spring force of the second adjusting device is slightly greater, since any weight force of the second profile part must additionally be compensated. As a result, it can be ensured during the adjustment operation that all locking means are substantially simultaneously deactivated for the recovery operation.

When using at least two adjusting devices, it is also possible to vary the spring forces for blocking the respective end positions, for example to compensate for the force of gravity acting on the mounting position of the two adjusting devices.

A unit according to the invention consisting of at least two adjusting devices can be used, for example, on a table leg with three profile parts. Then the first adjusting device can be arranged between the first profile part and the second profile part, and the second adjusting device can be arranged between the second profile part and the third profile part, so that the intermediate profile part is connected to the two adjusting devices . It is also possible to connect two or more adjustment devices in series.

Description of drawings

The invention will be explained in more detail below based on a number of exemplary embodiments and with reference to the accompanying drawings, in which:

FIG. 1 shows a side view of the adjusting device according to the invention before reaching the end position;

Figures 2A and 2B show two views of the adjustment device of Figure 1 in an end position;

Figure 3 shows a view of the adjusting device of Figure 1 in a locked position and without springs installed;

Figure 4 shows an exploded perspective view of a table leg with the adjusting device of Figure 1;

Figures 5A to 5C show various views of the table leg of Figure 4 in a retracted position;

Figures 6A to 6C show various views of the table leg of Figure 4 in an extended position;

Figure 7 shows a perspective view of the table leg of Figure 4 in an extended position;

Figure 8 shows a perspective view of a table with a modified adjustment device;

Figures 9A and 9B show two views of the legs of the table of Figure 8 in different positions;

Figures 10A to 10C show various views of the table leg of Figure 9 in an extended position;

Figures 11A to 11C show various views of the table leg of Figure 9 in a retracted position; and

FIG. 12 shows an exploded perspective view of the table leg of FIG. 9 .

detailed description

The adjustment device 1 comprises a first profile 2 which is movable relative to a second profile 3 . The second profile 3 is designed as a hollow profile and the first profile 2 is guided linearly in the second profile 3 . It is of course also possible to configure the first profile 2 as a hollow profile and then to guide the second profile 3 linearly in the first profile 2 , or to provide different guides between the two profiles 2 and 3 .

The first profile 2 can be fastened on one end side to another component by means of an inclined bracket 4 . On the other side, the first profile 2 has a shifting element 9 of the locking device, wherein the protruding pin 5 is fixed to the shifting element 9 . The switching element 9 can be moved along the guide rail 6 on the second profile 3 . The locking device consists of a pin 5 and a guide rail 6 . A linear guide 7 parallel to the longitudinal direction of the profiles 2 and 3 is formed on one side of the guide rail 6, while on the other side a plurality of locking grooves 8 are provided in which the pins 5 of the switching element 9 can be locked. in slot 8. The locking groove 8 is of curved shape so that the pin 5 on the switching element 9 is movable in a first adjustment direction, while movement in the opposite load direction is blocked by the locking of the pin 5 at the locking groove 8 . During the adjustment operation, the switching element 9 is deflected to the left in FIG. 1 , so that locking occurs when the profile 2 is retracted into the profile 3 . When the switching element 9 moves to the end position 11 of the guide rail 6, the locking device is deactivated, so that the pin 5 rests only on the linear guide 7 and the recovery operation is possible until the pin 5 reaches the start at the other end of the guide rail 6 position 10, and at this point the locking means are again active so that the pin 5 can move along the locking groove 8 again.

In order to avoid the situation that the locking device is inadvertently deactivated when reaching the last locking groove 8 before the end position 11, a spring 12 is provided, which is fixed to the second profile 3 by a first part 13 and connected to the pin by a second part 14. 5 fit. The pin 5 is blocked by the spring 12, and the pin 5 can reach the end position 11 only by overcoming the force of the spring 12, as shown in Figs. 2A and 2B. The user must actively overcome the spring force because he experiences resistance in order to be able to effectively unlock the locking device.

As shown in FIG. 3 , the spring 12 designed as a leaf spring is connected to the second profile 3 via a portion 13 . This can be done by means of a clamp connection or a welded connection. The force of the spring 12 can be freely selected according to the specific application. It is also possible to fasten the spring 12 to the second profile 3 in some other way, detachable or non-detachable.

FIG. 4 shows a first installation example of the adjusting device 1 according to the invention. The table leg comprises a lower profile part 20 and an upper profile part 23, both of which are designed as hollow profiles, wherein a guide 22 is arranged between the profile part 20 and the profile part 23, said guide being fastened to the profile part 20 and the profile part 23 the four corners of one of them. The lower profile part 20 is closed by a base plate 21 , while the cover plate 17 is mounted on the upper profile part 23 and is fastened to the upper profile part 23 by means of screws 18 . The profile part 23 is connected to the second profile 3 , wherein screws 19 are fastened to the cover plate 17 in order to fix the inclined bracket 16 to the cover plate 17 . An inclined bracket 16 is fixed to the opening 15 of the second profile 3 of the adjustment device 1 .

As shown in FIGS. 5A to 5C , the table legs can have a retracted position in which the pin 5 of the locking device is then arranged in the starting position 10 . In this case, the profile part 20 and the profile part 23 are substantially inserted into each other.

Then, when the upper profile part 23 is pulled upwards, the second profile 3 moves upward together with the inclined bracket 16, while the first profile 2 is fixedly connected to the base plate 21 by the inclined bracket 4 and thus remains stationary. As a result, the pin 5 of the locking device is moved along the guide rail 6 so that the upper profile part 23 can be locked in different locking positions of the guide rail 6 depending on the desired height setting. Once the highest locking position is reached, the tabletop can be raised further so that the pin 5 then bears against the portion 14 of the spring 12 and can then move further when the force of the spring 12 is overcome in order to initiate the recovery operation.

As shown in FIG. 7 , the adjustment device 1 is located inside the profile part 20 and the profile part 23 and is not visible from the outside. As a result, the profile parts 20 , 23 have a pleasing optical appearance and there is no risk of the user injuring himself or ruining the garment on the protruding pins 5 .

Figure 8 shows an exemplary embodiment of a modification of a table 30 in which the upper table top 31 is supported on one leg. The table leg consists of three profile parts 20 , 23 and 25 , wherein the lowermost profile part 20 is supported on a base plate 26 . The table can also have more than one leg.

As shown in Figures 9A and 9B, a table leg having three profile portions 20, 23 and 25 can be moved from a retracted position to an extended position.

Figures 10A and 10B show a table leg in an extended position. Within the profile parts 20, 23 and 25 two adjustment devices 1 are arranged, wherein the first adjustment device is connected to the lower profile part 20 and the middle profile part 23 and the second adjustment device 1 is connected to the middle profile part 23 and the upper profile part 25. As a result, the travel range is significantly increased, wherein the extended position of the legs is shown in FIG. 10 and the retracted position of the legs is shown in FIG. 11 .

In Fig. 12 the table leg of Figs. 9 and 10 is shown in exploded view. The first adjustment device is fixed to the base plate 26 by means of the inclined bracket 4 such that the first profile 2 is coupled to the lower profile part 20 . The second profile 3 of the adjustment device is fastened to the intermediate profile part 23 by means of screws, wherein the screws 28 pass through openings 29 in the intermediate profile part 23 and are fixed to brackets, which are connected to the second profile 3 .

The second adjustment device is connected via the inclined bracket 4 to the cover plate 27 of the table leg, said cover plate 27 being fixed to the upper profile part 25 . The second profile 3 of the second adjustment device is connected to the intermediate profile part 23 by means of screws 32 . In this exemplary embodiment, the first adjustment device and the second adjustment device are identical in structure.

For the adjustment operation from the retracted position, the table top is raised, wherein first the second adjustment device is moved under the force of gravity by pulling the first profile 2 out of the second profile 3 . When the first profile 2 reaches the last locking position before the end position, the pin 5 bears against the spring 12 and will not move further in the direction of the end position, since the force of the spring 12 prevents any further movement. As a result, the second profile 3 is then moved upwards and linearly relative to the first profile 2 of the first adjusting device until the first adjusting device also reaches the last locking position before the end position. If the table legs are then pushed in for a recovery operation, the tabletop moves upwards against the force of the two springs 12, which are at least substantially equal, so that the locking means are simultaneously unlocked. The legs can then be moved back to the fully retracted position, as shown in Figure 11. It is particularly advantageous if the spring force of the second adjusting device is slightly greater, since the weight force of the second profile part 23 must additionally be compensated during the manual upward movement.

In the exemplary embodiment shown, the adjustment means are used for table legs. Adjustment devices can also be used for backrests, slatted frames or other fitting elements. Furthermore, it is also possible to couple more than two adjusting devices 1 to each other.

List of reference signs

1 adjustment device

2 profiles

3 profiles

4 brackets

5 pins

6 rails

7 guide

8 Locking groove

9 Switching elements

10 starting position

11 End position

12 springs

13 parts

14 parts

15 openings

16 brackets

17 Cover

18 screws

19 screws

20 Profile Department

21 Bottom plate

22 guide

23 Profile Department

25 Profile Department

26 Bottom plate

27 Cover

28 screws

29 openings

30 tables

31 desktop

32 screws

Claims (10)

1. a kind of adjusting means (1) for furniture, it is especially useful in regulation table leg or backrest or lath framework, the adjusting means (1) the first section bar (2) is included, first section bar (2) is guided to can be on the second section bar (3) or in the second section bar (3) shifted along the longitudinal direction in, wherein first section bar (2) can be locked in along described by locking device (5,6) The diverse location of second section bar (3), and can be along the tune opposite with the load direction to be stopped on load direction Direction movement is saved, wherein when having reached final position (11) on the regulation direction, making the locking device (5,6) nothing Effect, and for recovery operation, first section bar (2) can be moved along the load direction until original position (10), in institute State original position (10) the place locking device (5,6) effectively, it is characterised in that be provided with spring (12), the spring hinders First section bar (2) is moved to the final position (11), and and if only if when having overcome spring force, just makes the locking device (5,6) are invalid.

2. adjusting means according to claim 1, it is characterised in that the spring (12) is fixed to second section bar (3)。

3. adjusting means according to claim 1 or 2, it is characterised in that the spring (12) has and first type The part (14) that actuation part (5) on material (2) coordinates.

4. adjusting means according to any one of the preceding claims, it is characterised in that the spring (12) is designed to Leaf spring.

5. the unit that one kind is made up of at least two adjusting meanss (1) according to any one of the preceding claims.

6. unit according to claim 5, it is characterised in that the section bar of the first adjusting means (1) is connected to the second regulation The section bar of device.

7. the unit according to claim 5 or 6, it is characterised in that being used for of at least two adjusting means (1) stops The power approximately equal of the spring (12) of respective final position (11).

8. the unit according to claim 5 or 6, it is characterised in that the structure phase of at least two adjusting means (1) Together.

9. the unit according to claim 5 or 6, it is characterised in that being used for of at least two adjusting means (1) stops The power of the spring (12) of respective final position (11) is different.

10. the unit according to any one of claim 5 to 9, it is characterised in that include the list of two adjusting meanss (1) Member is secured on the table leg with three section bars, wherein, the intermediate proximate matter portion of the table leg is connected to two adjusting meanss.