• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:DK200600279U1
    申请号:DK200600279U
    申请日:2006-11-02
    公开日:2007-02-23
    发明作者:Koeder Michael；Buitmann Michael；Klingenhagen Wilhelm
    申请人:Kesseboehmer Produktions Gmbh；
    IPC主号:
    专利说明:

    DK 2006 00279 U4
    High adjustable drive device. especially for furniture
    The invention relates to a height adjustable drive device, especially for furniture, according to the preamble of claim 1.
    Such height adjustable drive devices, for example, serve for furniture, especially at work and office tables, to set the table top at different heights. The drive devices can be set either manually or with an electric motor.
    Examples of drive devices for height adjustment of furniture are known, for example, from DK 199701123, SE 513249 and EP 0982018. These drive devices used for height adjustment are expensive and do not operate without noise. However, it is particularly disadvantageous for these known solutions that they all require considerable installation space, which is not desirable if. built-in furniture.
    The present invention therefore has the task of designing the height-adjustable drive device referred to at the outset, so that, in a simple structural design, it has a compact design and can be operated with low noise.
    This task is solved by the characteristic features of the independent claims 1 and 2 in the introduction of the driving device according to the invention.
    In the drive device according to the invention, the height adjustment is made so that the push parts can be adjusted in opposite directions relative to each other. The drive connection between the two pushing parts is made by means of the pulling element. Thus, unlike conventional height-adjustable drive devices, the individual elements of the drive device are not set in the same direction in height. The push parts with the pulling element form a kind of endless drive, by means of which the push parts are set in the opposite direction relative to each other. In this opposite direction, for example, one pushing member may rest on the floor with a floor support, so that the other pushing part is adjusted in height in relation thereto. Advantageously, the tow member is a tow belt that needs little mounting space. The drive device according to the invention can therefore be given a slim shape. The manufacture and mounting of such a DK 2006 00279 U4 traction element can be done in a cheap way. In addition, in the design according to the embodiment, the driving device is distinguished by its low noise operation.
    Further features of the invention are set forth in the additional claims, description and drawings.
    The invention will now be described in more detail on the basis of the exemplary embodiments shown in the drawings. In the drawings, FIG. 1 is a perspective view of a height-adjustable drive device according to the invention in the extended position; FIG. 2 is a perspective view of the drive device according to the invention in a partially extended position; FIG. Figure 3 is a perspective view of the drive device of the manufacture in fully extended condition; 4 is an end view of the drive device according to the invention shown on a larger scale; FIG. Fig. 6 is a schematic end view of the traction belt of the drive assembly and the associated end of the drive assembly; 7 is an exploded view of another embodiment of a drive device according to the invention; FIG. 8 shows another embodiment of a motor in the drive device according to the invention, and FIG. 9 the drive device arranged in a lifting column according to the invention.
    The drive device described below is telescopically shaped and can be continuously adjusted in various lengths. The drive is advantageously intended for furniture, especially for tables which must be adjustable at different heights. The drive devices are incorporated in lifting columns 63 (Fig. 9), which are telescopically shaped and with which a table top 64 or the like can be adjusted steplessly in height. This lifting column 63 has at least two telescopic parts 65 to 67 which can be adjusted in height by means of the telescopic drive. It is without any doubt possible to use the drive device itself as a lifting column and thus not to place it in a separate lifting column.
    The drive according to FIG. 1 to 6 have three telescopic parts 1 to 3, which in a manner that will be described later, can be shifted infinitely in relation to ten! each other. Of course, the drive may also have more than three telescopic parts.
    The lower telescopic portion 1 in the mounted position has a support (not shown) with which the drive device inside the lifting column 63 stands on the floor. The upper telescopic portion 3 carries at its free end a motor 5, preferably an electric motor. It has a motor housing 6 from which a mains connection line 7 is fed. The motor 5 has a drive shaft 8 (Figs. 2 and 4) which are pivotally connected to one end of a threaded spindle 9 pivotally mounted in the middle telescopic portion 2, which is preferably a tube into which the threaded spindle may be protected.
    On the end facing the motor 5, there is on the telescopic part 2 a guide part 39 (Fig. 4) which has a spindle nut 10, which is mounted on the threaded spindle 9 and is fixed in the telescopic part 2. The spindle nut 10 is mounted on a shoulder 11 which is inserted. in the telescopic portion 2 and attached thereon appropriately.
    At the opposite end of the telescopic part 2, a guide part 4 with a stop 12 is inserted and suitably fastened.
    The guide member 39 is formed in a bell-shaped shape and has on each of two opposite sides sub-circular abutments 13 and 14 for each of its drawbands 15 and 16. These are arranged with their ends 17, 18 facing the abutments 13, 14 and with their free ends attached to a plate-shaped slide portion 19. This is disposed on the outside of the telescopic portion 2 and is preferably configured as a U-shaped rail. The pushing member 19 projects through an opening 20 in the guide part 4 (Fig. 3). at its end facing away from the motor 5, the pushing member 19 is provided with a transversely extending fastening element 21, with which the driving device is secured inside the lifting column 63 at its lower end. The fastening element 21 is formed by two perpendicular to the longitudinal axis of the pushing portion 19 of the pushing member 19.
    5 When the drive is pushed together, the pushing member 19 extends from the guide part 4 to near the motor 5.
    The end strips 15, 16 facing away from the motor 5, the pull-off straps 15, 16 are attached to another plate-shaped pushing portion 24 near the end thereof away from the motor 5 10. The pushing part 24 is preferably also designed as a U-shaped rail, which is attached to the underside 25 of the motor housing 6 facing the telescopic part 2 (Figures 1 and 4). For fastening to the motor housing 6, the pushing portion 24 is provided at its end facing the motor 5 with transverse projecting tabs 26 which are screwed onto the underside 25 of the motor housing 6.
    15
    The two pushing parts 19, 24 form the telescopic parts 1 and 3 of the drive.
    The ends 22, 23 of the tensioning straps 15, 16 are secured at the inner or outer side of the pushing part 24 at its end facing away from the motor 5 by 20 screws 27, rivets and the like. The pushing part 24 is preferably arranged on the side of the telescopic part facing the pushing part 19. The two pushing parts 19, 24 partly enclose the telescopic part 2. When the drive is pushed together, the pushing part 24 extends from the motor 5 to the guide part 4 of the telescopic part 2.
    The guide part 4 carries a freely rotatable turning roller 28, the axis of rotation of which is perpendicular to the longitudinal axis of the telescopic part 2. By means of the turning roller 28, another pulling belt 29 is turned 180 ° (Fig. 4). One end 30 of the drawbar 29 is secured to the end of the pushing portion 19 facing the motor 5. The end 30 of the drawbar is located between the ends 17, 18 of the two drawbacks 15, 16. The ends 17, 18, 30 of the drawbacks 15, 16, 29 is fixed at the same height by screws 31, rivets and the like to the inside of the pushing member 19.
    The other end 32 of the traction belt 29 is turned 180 ° on the turning roller 28 and fixed to the pushing part 24 at the end region facing away from the motor 5.
    The pushing part 24 has at its end facing the guide part a passage opening 33 (Figs. 4 and 5), through which the drawbar end 32 is passed outwards. The drawbar end 32 is secured with a screw 34 or the like to the outside of the pushing portion 24. In the region between the fastening end and the passage opening 33, the pushing part 24 is provided with at least one tensioning shaft 35 (Fig. 4) which is partially punched by the pushing part 24 and biasing against the tensioning end 32. The tensioning means 35 ensures that the pulling belt 29 at the height adjustment of the drive device. constantly under tension. The lug 35 is so curved in the direction of the drawbar end 32 that in the condition of the drawbar 29 mounted against the drawbar end 32 under bias is applied.
    Between the spindle nut 10 and the drive element 5 is arranged a damping element 37, which the telescopic part 2 strikes when the drive device is pushed together. The damping member 37 is a damping ring (Fig. 4) through which the threaded spindle 9 extends.
    On the free end of the threaded spindle 9, inside the telescopic part 2, sits another damping element 38 (Fig. 2) which, when fully extended, drives the abutment 11 of the guide part 39. The two damping elements 37, 38 provide to ensure that the telescopic parts, when pushed together and extended, are attenuated to reach the impact position. Thereby, the drive device operates very quietly during length adjustment. It is also possible that the telescopic parts of the drive device can be moved towards the stop without damage. Then the motor 5 is switched off in a known manner or remains under voltage until the user disconnects the motor. The advantage of this design is that there is no need for an end switch to switch off the motor 5.
    Advantageously, the end positions of the drive device can be adjusted in a known manner via a control and a tachogen generator. The motor 5 is then activated and the drive device is moved from its thrust to its deferred end position. The block position at the end of the outward movement path is recorded by the controller and stored. Similarly, the block position when pushing the drive device is also recorded by the controller and stored. This calibration process is usually only required once. By the further use of the 6 DK 2006 00279 U4 drive device, this calibration achieves that the motor 5 is interrupted briefly for the block position by insertion and extension of the drive device.
    In another embodiment, only one block position is recorded in the manner described in the calibration process. The second block position is automatically detected by the controller when the maximum displacement length of the drive is known.
    Advantageously, the drawbands 15, 16, 29 consist of spring steel. They may also consist of any other suitable tensile-resistant material. Since the drawbands 15, 16, 29 are made of plastic material, they only need little installation space. The height adjustable drive device can therefore be slender.
    The guide part 4, at the height adjustment of the drive device, forms a guide for the pushing member 19. The second pushing part 24 is supported by the height adjustment of the driving device by the guide part 39 containing the threaded nut 10.
    FIG. 1 shows the drive device in the inserted or pushed position. The two pushing portions 19, 24 cover the telescopic portion 2 over most of its circumference 20 (Fig. 1). Pushing portion 24 extends to nearby stool portion 4. If the motor 5 is connected and the threaded spindle 9 is rotated about its axis in the corresponding direction, the threaded spindle 9 moves with the motor 5 out of the telescopic portion 2. As the pushing portion 24 is connected to the motor 5, it becomes to the same extent as the threaded spindle 9 adjusted with respect to the telescopic part 2. By means of the pulling straps 15, 16, 29 it is obtained that the telescopic part 2 and the pushing part 24 move relative to the pushing part 19. In this way the table top 64 or the like is raised. FIG. 3 shows the maximum deferred position of the drive. In this position, the attenuating element 38 (Fig. 2) abuts the guide member 39. By the displacement of the telescopic portion 3 relative to the telescopic portion 2, the pull bands 15, 16 are displaced along the partial circular abutments 13, 14 on the guide portion 39. The pull band 29 is displaced in proportion. to the turning roller 28. Since it is mounted freely pivotally in the guide part 4, the traction belt 29 can also be displaced non-slip during the height adjustment of the drive device. The tensioning belt 29 is under strain or tensile tension so that the telescopic part 2, 3 can be displaced error-free. The tensioning straps 15, 35 16 are not subjected to tensile during the extension.
    7 DK 2006 00279 U4
    The height adjustable drive is of a simple design and can therefore be manufactured inexpensively. The drive is slightly noisy at the height setting. The threaded spindle 9 with the threaded nut 10 is designed so that in every pushing position of the driving device there is a self-inhibition.
    The pushing parts 19, 24 and the pulling belts 15, 16, 29 together form an endless drive that allows in a constructively simple yet reliable manner a stepless and accurate height adjustment of the driving device.
    If the threaded spindle 9 of the motor 5 is turned in the opposite direction, the drive device is again pushed together. At the retraction, the drawbands 15, 16, at sufficient load, are also relieved of drag, while the pull band 29 supports the load. In the event of an accidental clamping when the drive is pushed back, the pulling straps 15, 16 are subjected to tension so that the clamping effect is overcome.
    In the illustrated embodiment there are two drawbands 15 and 16. For the insertion and extension of the drive device, only one of the two pullbands 15, 16. Sufficiently, the guide part 39 also needs only one part-circular system for this one drawstring. In such a case, the guide part 39 also advantageously has the two part-circular systems 13, 14. The pushing part 24 can also be fixed immediately or immediately by means of an adapter to the underside of the countertop 64. Thus, the operation of the drive device described does not change anything.
    The motor 5 is designed as gear or planetary gears. Of course, the motor 5 may also include an angular gear, as schematically shown in FIG. 8. In this case, the drive shaft 8 forms an angle, preferably a right angle with the longitudinal axis of the motor housing 6.
    Instead of the freely rotatable turning rollers 28 on the guide part 4, it is also possible to use a part circular guide on the guide part 4, which is also arranged on the opposite guide part 39.
    8 DK 2006 00279 U4 Instead of the clamping lug 35, any other suitable clamping device can be used for the drawstring 29. The end 32 of the drawstring 29 is advantageously designed such that a tolerance equalization is possible during assembly. This tolerance equalization is preferably formed by the fact that this drawbar end 32 has several spaced apart apertures 36 for the fastening elements 34 (FIG. 6). Pushing member 24 has corresponding apertures 68 for the fastener element 34, these apertures 68 being at a different distance from each other than the apertures 36 at the traction end 32. In this way, a problem-free tolerance equalization is ensured when mounting the drive.
    FIG. 7 shows another embodiment of a height adjustable drive device, in which, instead of the individual pull bands, a single endless pull band 40 is used.
    It is passed over two turning rollers 41, 42. To the endless conveyor belt 40 '$ two races, the two pushing parts 19 and 24 are fixed. The pushing portion 19 is secured at its end to the motor 5 with screws 43, rivets and the like, to the end 44 of the tensioning belt 44 facing the motor 5 towards the motor 5. The opposite pushing portion 24 becomes with its end facing the guide part 4 with screws 45 , rivets, and the like, attached to the end portion 46 of the traction belt 40 in the thrust position of the drive device 4 facing the guide portion 4.
    For guiding the traction belt 40, there is a guide member 47 attached to one side of the telescopic portion 2. The telescopic portion has two transversely projecting bolts 48, 49 to which the guide member 47 is mounted. For this purpose, it is provided with two attachment openings 50, 51. The guide element 47 is furthermore provided on each of its upper and lower faces with a groove 52, in which the respective course of the draw belt 40 lies. The notes 52 ensure that the drawbar is guided smoothly across its longitudinal direction.
    The guide member 47 is in the form of a strip and, on its longitudinal side facing away from the telescopic part, has a strip 53 which extends in the direction of the guide member 4 over the guide member 47. The protruding end of the strip 53 is provided with a insertion opening 50. The turning roller 41 is pushed into the bolt 48 before the guide member 47 is placed on the two bolts 48, 49. The turning roller 41 is then in the region between the telescopic portion 2 and the protruding end of the strip 53.
    9 DK 2006 00279 U4 The guide element 47 and the turning roller 41 are secured by means of a locking ring 54 on the free end 48. Also on the free end of the bolt 49 protruding through the insertion opening 51 of the guide element 47, a securing ring 55, The guide element 47, is secured. thus carrying the circumferential traction belt 40 is thus held error-free on the telescopic portion 2.
    At the end of the stool element 47 facing the motor 5, a shoulder 56 is placed on a fork 57 which receives a shaft pin 58 on which the tension roller 42 is freely rotatably mounted. The roller is axially secured between the fork branches of the fork 57.
    The fork 57 is loaded in the direction of the motor 5 by means of a compression spring 59 arranged in the telescopic part 2 and axially secured by the bolt 49. Under the force of the pressure spring 59, the fork 57 with the turning roller 42 is loaded in the direction of the motor. 5. In this way, the tensioning belt 40 is kept under tension.
    As with the previous embodiment, the engine drives the 5's axis! 8, the threaded spindle 9 projecting into the telescopic portion 2. Pushing member 19 is guided, in accordance with the previous embodiment by axial displacement, into an opening in the guide part 4. At the end facing away from the motor 5, the pushing member 19 is secured to a floor support 60. 24 is secured with a transverse flange 61 to the underside of the motor housing 6 or via an adapter (not shown) attached directly to the underside of the countertop 64 (Fig. 9). In addition, the pushing member 24 is guided by a guide ring 62 in its position. The guide ring 62 is advantageously a clamping ring which is clamped on the end facing the motor 5 of the telescopic part 2. The guide ring 62 is designed so that it can reliably guide the pushing part 24 under its displacement movement.
    The two pushing portions 19, 24 are sufficiently wide that, when the drive is pushed together, they cover both the telescopic portion 2 and the side of this fixed guide member 47. As in the previous embodiment, the pushing portions 19, 24 are so long that the telescopic portion 2 at the propulsion device is almost completely covered.
    10 DK 2006 00279 U4
    If the threaded spindle 9 is turned by means of the motor 5, the threaded spindle 9 is moved out of the telescopic part 2. As the pushing part 24 is attached to the motor housing 6 or connected to the countertop 64, it is accordingly included. By means of the endless circumferential pull belt 40, the pushing part 19 is also displaced in the opposite direction with respect to the telescopic part 2. The movement of the movement is the same as in the previous embodiment.
    The turning rolls 28, 41, 42 used in the described embodiments are advantageously designed as a ball, thereby reliably ensuring that the tensioning belts 29, 40 are held in the middle of the tension rollers.
    In the described embodiments, the motor 5 is arranged in the vicinity of the countertop 64 or the like of the furniture. This has the advantage that the mains connection line 7, the control cable and the like can be placed simply in a cable duct under the table top. In principle, however, the motor 5 may also be located in the feeding area of the lifting column 63. Thus, the mains cable, the control cable and the like must be routed upwards of ten. cable channel. In this case, the telescopic drive is turned 180 ° relative to the exemplary embodiments shown.
    In the two embodiments, the tensioning straps 15, 16, 29, 40 are connected in the manner described to the two pushing parts 19, 24. If the driving device is placed in the lifting column 63, at least one end of the pulling straps may be attached to the lifting column. In this case, at least one of the push parts can be saved.
    Engine 5's gear can be self-limiting. Furthermore, the drive device may have a brake acting in one direction.
    Advantageously, the motor 5 has a device for recording the rpm having at least one pulse generator, preferably a Hall generator. The motor 5 may additionally have a magnetic resting moment.
    It is advantageous if the spindle nut 10 of the guide member 39 has self-lubricating components.
    DK 2006 00279 U4 11
    The adjusting speed of the two pushing parts 19 and 24 relative to each other is twice as much as the adjusting speed of the telescopic part 2 relative to the motor 5. This allows the height adjustment of the drive to be made quickly.
    权利要求:
    Claims (29)
    [1]
    1. Height adjustable drive device, especially for furniture, and having at least two telescopic parts displaceable relative to each other, operable by means of a motor, the drive device having at least two displaceable push parts (19, 24) opposite each other, which are connected to each other by at least one pulling element (15, 16, 29, 40), the motor (5) pivotally driving a threaded spindle (9) on which is mounted a spindle nut (10) connected to one telescopic part (2) and that one of the push parts (24) is fixedly connected to a housing (6) for the motor (5), characterized in that the pulling element (15, 16, 29) is secured to one end (17, 18, 30) to one push member (19) and with the other end (22, 23, 32) are attached to the other push member (24).
    [2]
    2. Height adjustable drive device, especially for furniture, and having at least two telescopic parts displaceable relative to each other, which can be operated by means of a motor, the drive device having at least two mutually adjustable push parts (19, 24) which are connected to each other by at least one pulling element (15, 16, 29, 40), the motor (5) pivotally driving a threaded spindle (9) on which is mounted a spindle nut (10) connected to one telescopic part (2) and that one of the pushing parts (24) is firmly connected to the part (64) to be adjusted, preferably a countertop, characterized in that the pulling element (15, 16, 29) has one end (17, 18, 30). is attached to the one pushed! (19) and with the other end (22, 23, 32) attached to the second pushing member (24).
    [3]
    Drive device according to claim 1 or 2, characterized in that the pushing parts (19, 24) in the pushed-up state of the driving device at least partly surround one of the telescopic parts (2).
    [4]
    Drive device according to claim 1, 2 or 3, characterized in that one of the pushing members (19) is fixedly connected to a floor support (60). 2 DK 2006 00279 U4
    [5]
    Drive device according to one of claims 1 to 4, characterized in that the one telescopic part (2) has at least one guide (4, 39, 62) for at least one pushing part (19, 24).
    [6]
    Drive device according to one of claims 1 to 5, characterized in that the one telescopic part (2) for each of the two pushing parts (19, 24) has a guide (4, 39, 62).
    [7]
    Drive device according to one of claims 1 to 6, characterized in that the pulling element (15, 16, 29, 40) is formed as a belt.
    [8]
    Drive device according to one of claims 5-7, characterized in that one end (17, 18) of one of the pulling elements (15, 16) is passed over a curved installation (13, 14) on the guide part (39).
    [9]
    Drive device according to claim 8, characterized in that the guide part (39) is fixed to a telescopic part (2).
    [10]
    Drive device according to one of claims 8 to 9, characterized in that the other end (32) of the second pulling element (29) is passed over a turning roller (28).
    [11]
    Drive device according to claim 10, characterized in that the turning roller (28) on one guide (4) of one telescopic part (2) is freely rotatable.
    [12]
    Drive device according to one of claims 8 to 11, characterized in that the other end (32) of the second pulling element (20) is biased by at least one clamping element (35, 36).
    [13]
    Drive device according to Claim 12, characterized in that the clamping element (35, 36) is a part punched out by a pushing member (24). 3 DK 2006 00279 U4
    [14]
    Drive device according to one of claims 1 to 7, characterized in that the pulling element (40) is an endless circumferential band.
    [15]
    Drive device according to claim 14, characterized in that one pushing member (19) is attached to one race of the pulling element (40) and the other pushing part (24) is fixed to the other running.
    [16]
    Drive device according to claim 14 or 15, characterized in that the pulling element (40) is passed over two turning rollers (41, 42) mounted on the telescopic part (2),
    [17]
    Drive device according to claim 16, characterized in that one turning roller (42) is biased in the longitudinal direction of the pulling element (40).
    [18]
    Drive device according to one of claims 15 to 17, characterized in that the turning rollers (28, 41, 42) have a spherical abutment surface for the pulling element (29, 40).
    [19]
    Drive device according to claim 17 or 18, characterized in that the threaded spindle (9) and the spindle nut (10) are designed to be self-locking.
    [20]
    Drive device according to one of claims 1 to 19, characterized in that the motor (5) has a gear or planetary gear.
    [21]
    Drive device according to one of claims 1 to 19, characterized in that the motor (5) has an angular or worm gear.
    [22]
    Drive device according to claims 20 to 21, characterized in that the gear (5) of the motor (5) is self-inhibiting.
    [23]
    The drive device according to one of claims 1 to 22, characterized in that the drive device has a brake acting in one direction. DK 2006 00279 U4 4
    [24]
    Drive device according to one of claims 1 to 23, characterized in that the motor (5) has a device for identifying the number of rpm. 5
    [25]
    Drive device according to claim 24, characterized in that the device for identifying the rpm has an impulse sensor, preferably a Hall generator.
    [26]
    Drive device according to one of claims 1 to 25, characterized in that the motor (5) has a magnetic resting torque.
    [27]
    Drive device according to one of claims 1 to 26, characterized in that the spindle nut (10) has self-lubricating components. 15
    [28]
    Drive device according to one of Claims 1 to 27, characterized in that the setting speed of the two push parts (19, 24) relative to each other is twice the setting speed of the one telescopic part (2) relative to the motor (5). 20
    [29]
    Drive device according to one of claims 1 to 28, characterized in that the two pushing parts (19, 24) each form a telescopic part (1, 3) of the drive device.
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    同族专利:
    公开号 | 公开日
    DK200600279U4|2007-08-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2015-04-24| UUP| Utility model expired|Expiry date: 20150406 |
    优先权:
    申请号 | 申请日 | 专利标题
    DK200600279U|DK200600279U4|2006-11-02|2006-11-02|Height adjustable drive, especially for furniture|DK200600279U| DK200600279U4|2006-11-02|2006-11-02|Height adjustable drive, especially for furniture|
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