• 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:
    Damping device (10) for movable furniture parts (3), comprising: - a damper housing (11), - at least one in the damper housing (11) arranged and filled with damping fluid fluid chamber (14) in which a piston (15) is slidably mounted, - a seal (30) sealing the piston (15) against the damper housing (11), the seal (30) having a first portion (25) on the piston (15) and a second portion (26) on the damper housing (11) each fluid-tightly secured or formed thereon, wherein the seal (30) deformed during a relative movement between the piston (15) and the fluid chamber (14).
    公开号:AT513801A1
    申请号:T13/2013
    申请日:2013-01-08
    公开日:2014-07-15
    发明作者:
    申请人:Blum Gmbh Julius；
    IPC主号:
    专利说明:

    • · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ··································································
    The present invention relates to a damping device for movable furniture parts, comprising: a damper housing, at least one fluid chamber arranged in the damper housing and filled with damping fluid, in which a piston is displaceably mounted, a seal which seals the piston against the damper housing.
    Furthermore, the invention relates to a furniture fitting, in particular a furniture hinge, with a damping device of the type to be described, wherein the damping device is provided for damping a movement of the furniture fitting.
    A furniture hinge with a damping device is described in the earlier priority, but not previously published Austrian patent application A 1243/2011. Here, a seal is provided which seals a plunger connected to the piston relative to the damper housing, wherein the seal is penetrated by the plunger. However, due to the plunger passing through the seal, sealing problems may occur because the hydraulic damping fluid in the fluid chamber may leak through the gap remaining between the plunger and the seal and thus undesirable oil carryover could occur.
    Object of the present invention is to propose a damping device of the type mentioned, with such sealing problems are avoided.
    This is achieved by the features of claim 1. Further advantageous embodiments of the invention are defined in the dependent subclaims. 2.21
    According to the invention, it is thus provided that the seal is fastened in each case in a fluid-tight manner to a first section on the piston and to a second section on the damper housing, wherein the seal deforms during a relative movement between piston and fluid chamber.
    The basic idea of the invention is therefore to fluid-tightly connect a first section of the seal to the piston so that this first section of the seal is coupled to a movement of the piston. During a movement of the piston so there is no relative movement between the piston and that portion of the seal, which is fluid-tightly connected to the piston instead. The second portion of the seal, however, is in communication with the damper housing, wherein the two portions of the seal are movable relative to each other by a displacement of the piston. The first and the second portion of the seal are preferably formed integrally with each other. The seal may be formed from an elastic - preferably rubber-elastic - material (for example rubber).
    The proposed damping device is thus without sliding seals or without dynamic seals, with particularly high tightness requirements can be met. By relative movability between the first portion and the second portion of the seal, it is also possible that the seal limits a variable compensation space to compensate for a change in volume due to the piston plunging into the fluid chamber.
    The first section of the seal can be connected in a fluid-tight manner to an end region of the piston by frictional engagement or also by material engagement (for example via an adhesive bond). It can be provided that the first portion of the seal, the lateral surface of the piston - at least partially in the longitudinal direction of the piston - completely surrounds. The piston is thereby enclosed in the fluid chamber, preferably in its entirety, by the seal. • · · · · · · · · · · · · · · · · · · · · · · · · · Μ
    In the fluid chamber, a hydraulic damping fluid is arranged, for example, a higher viscosity oil. In furniture dampers silicone oil is often used as a damping medium.
    According to one embodiment, the first portion of the seal may comprise a, preferably cylindrical, sack for receiving the piston, wherein in the assembled position an end portion of the piston is inserted into this sack. In this way, a particularly good seal is possible.
    The piston is, preferably acted upon by a cap attached to the bag, by a movably mounted drive part of the damping device. The cap can be made of an abrasion-resistant plastic material, so that the seal is protected against abrasion or wear when acted upon by the drive part.
    The furniture fitting according to the invention is characterized by at least one damping device of the type described. The furniture fitting can be designed as a furniture hinge, as a drawer pull-out or as an actuator for furniture flaps, wherein at least one closing movement of the furniture fitting can be damped by the damping device.
    Further details and advantages of the invention will be explained with reference to the embodiments shown in FIGS. It shows or show:
    Fig. 1 Fig. 2a, 2b Fig. 3a-3c
    4a-4c a cupboard-shaped furniture with a pivotally hinged door in a perspective view, a furniture hinge with a hinged cup mounted on the damping device in two different perspective views, highly schematic views of the damping device with an extended and a retracted piston and in a perspective section, the damping device in two different exploded views as well as in a perspective view, 4/21 ········ # ·· ♦ · · · · · · · · · · · · · · · · ···························································· ···· ································
    Fig. 5a, 5b show two different sectional views of the damping device with the piston in an extended and in a retracted position.
    Fig. 1 shows a furniture 1 with a furniture body 2 in a perspective view, wherein a movable furniture part 3 is mounted in the form of a door or flap on furniture fittings in the form of furniture hinges 4 pivotally relative to the furniture body 2. The furniture hinges 4 have a hinge arm 5 to be fastened to the furniture body 2 and a hinged pot 6 pivotally connected thereto. At least one damping device 10 (FIG. 2b) is mounted on or in the hinge cup 6, wherein the hinge cup 6 can be arranged together with the damping device 10 within a cylindrical bore of the movable furniture part 3. By the damping device 10 is a closing and / or opening movement of the furniture hinge 4 and thus those of the movable furniture part 3 can be damped.
    Fig. 2a and Fig. 2b show a furniture hinge 4 in two different perspective views. For attachment of the hinge cup 6 on the movable furniture part 3, a mounting flange 7 is provided. The pubic pot 6 is hingedly connected to the hinge arm 5 via at least one articulated lever 8. In or on the hinge cup 6, an actuating element 31 is pivotally mounted about an axis of rotation 9, wherein the hinge lever 8 dips towards the end of the closing movement of the furniture hinge 4 in the hinge cup 6 while the actuator 31 is rotated. By a transmission mechanism, this rotational movement of the actuating element 31 in a linear movement of a piston 15 (Fig. 3a) of the damping device 10 can be implemented. In the exemplary embodiment shown, a damping device 10 is arranged with a damper housing 11 on an outer wall of the hinge cup 6 and in the installed position below the mounting flange 7. On an opposite outer wall of the hinge cup 6, a return mechanism 35 is mounted, by means of which the rotatably mounted actuating element 31 can be restored to a starting position after a successful damping stroke. The sham pot 6, together with the damping device 10 mounted thereon and the return mechanism 35, is arranged in a cylindrical shape in a cylindrical 5/21 ♦ ······ ♦ ··· ♦ ♦ * · · ··········· ························································································································································································ The return mechanism 35 may have a torsion spring, by which the actuating element 31 is rotated back into an initial position. Via a manually operated switch 36 (FIG. 2 a), the actuating element 31 can be inhibited from returning, whereby the damping function of the damping device 10 can be deactivated, if desired. The assembly of the return mechanism 35 can be replaced by an additional damping device 10 with a damper housing 11 to provide an increased damping force, wherein the return movement of the actuating element 31 can be effected by a return spring 19 arranged in the damper housing 11 (FIG.
    Fig. 3a and Fig. 3b show a highly schematic a damping device 10 with a damping fluid filled with fluid chamber 14, in which a piston 15 is mounted linearly displaceable. The piston 15 is located in Fig. 3a in an initial position for a damping stroke, ie in an extended position. The piston 15 is formed in two parts in the illustrated embodiment and comprises an inner piston 16 and a sleeve disposed on the inner sleeve 16 17. Between the inner piston 16 and the sleeve 17 is an overload protection, which comprises a spring 33 loaded by a pressure member 34 is arranged. By means of this overload protection, at least one overload opening 37 of the inner piston 16 can be opened above a threshold value of a pressurization on the piston 15. In case of overload, a rapid pressure reduction can be brought about by the loaded by the spring 33 pressure member 34 releases the overload port 37. The damping fluid can thus flow in an excessively strong pressure load through the overload port 37 and through an overflow 32 of the sleeve 17 into a bounded by a seal 30 compensation chamber 38.
    The bellows-shaped seal 30 is fastened with a first portion 25 on the piston 15 and with a second portion 26 on the damper housing 11. The seal 30 is made of an elastic plastic material and abuts circumferentially on the lateral surface of the piston 15. In the exemplary embodiment shown, the first portion 25 of the seal 30 is fixed in a fluid-tight manner to the low-pressure-side end region of the piston 15. However, it is also possible to use the first section 25 of the 6/21 ······ «· * · * · · · · · # ····· · ····« · · · · · · · · · · Μ · 0 I Μ ·
    Seal 30 from the end of the piston 15 to space. Now, if the piston 15 -ausgehend of the extended position shown in FIG. 3a - is pressed in the direction of the arrow 28 in the fluid chamber 14, the hydraulic damping fluid from the fluid chamber 14 by a between the piston 15 and the inner wall of the fluid chamber 14 formed gap 18 and / or by (not shown here) openings of the piston 15 in a bounded by the seal 30 compensating space 38. 3b shows a partially retracted position of the piston 15. The seal 30 is due to the displaced damping fluid, which is generated by the retracting into the fluid chamber 14 piston 15 inflated (this is to illustrate Fig. 3b schematically). Fig. 3c shows the damping device 10 in a perspective section.
    FIGS. 4a and 4b show the damping device 10 in two different exploded views, respectively. In the damper housing 11, at least one fluid chamber 14 is formed, in which a piston 15 - which has the inner piston 16 and the surrounding sleeve 17 - is mounted linearly displaceable. After completion of the damping stroke, the piston 15 can be reset by the force of a return spring 19 back to an initial position. A seal 30, which is to be fastened via the first portion 25 on the piston 15 and the second portion 26 on the damper housing 11 surrounds the piston 15 such that by a displacement of the piston 15 no relative movement between the first portion 25 and the piston 15th takes place. With the first portion 25 of the seal 30, a bag 20 is integrally connected, in which the piston 15 is received with an end portion. In addition, a deformable compensation body 21 is connected to the seal 30, wherein a volume change of the piston 15 immersed in the fluid chamber 14 can be compensated by a deformation of the compensation body 21. The sack-shaped compensating body 21 is a hollow body filled with air, wherein air can escape from the compensating body 21 during the damping stroke via an opening 39 and air can flow into the compensating body 21 when the piston 15 is returned. For positioning the seal 30 in the damper housing 11, a bearing part 24 is provided. On the bag 20, an abrasion-resistant cap 23 is attached, which cooperates with the damping stroke with a rotatably mounted drive member 12. 7/21 • · · · · · · ·························································································· · * ·· 7 · ···
    4c shows the damping device 10 in a perspective view. The drive part 12 is at least partially led out of the fluid chamber 14 and has a fastening device 29 for connection to a separate from the damper housing 11 actuator 31 (Fig. 2a), wherein the actuating element 31 is provided for applying force to the drive member 12. The fastening device 29 may comprise, for example, a form-locking connection, which rotatably connects the rotatably mounted actuating element 31 with the drive part 12.
    5a shows the damping device 10 with a piston 15 in the initial position in a perspective section. 5b shows the damping device 10 with a piston 15 pressed into the fluid chamber 14.
    For urging the piston 15, a movably mounted drive part 12 is provided with a lever arm 13, the lever arm 13 cooperating with the piston 15 via the abrasion-resistant cap 23 (FIG. 4 a). The drive member 12 is coupled for movement with the actuating element 31 shown in Fig. 2a, so that upon rotation of the actuating element 31 and the drive member 12 mitverdreht. If, during the damping stroke, the drive part 12 is rotated clockwise starting from FIG. 5 a, then the lever arm 13 of the drive part 12 pushes the piston 15 into the fluid chamber 14. The seal 30 is fluid-tightly secured to the piston 15 with a first portion 25, and to the damper housing 11 in a fluid-tight manner with the second portion 26. The elastic seal 30 has a protuberance 40 which is variable in shape during the damping stroke (FIG. 5b). By retracting the piston 16 into the fluid chamber 14, the damping fluid displaced by the piston 16 is displaced in the direction of the arrow in the compensation chamber 38, wherein a compensating chamber 38 located in the compensation body 21 is deformed accordingly and thus the volume of the retracting into the fluid chamber 14 piston 15 compensated. The deformable compensation body 21 is deformable in the axial and / or radial direction. The longitudinal axis of the compensation chamber 38 extends laterally parallel to the longitudinal axis of the fluid chamber 14. After completion of the damping stroke of the piston 15 is reset by the force of a return spring 19 back into a ready for the next damping stroke ready position. In the embodiment shown, this is the 8/21 •··········································································· ··· # g ·
    Drive part 12 is rotatably mounted about an axis of rotation 9 (Fig. 2a), wherein the axis of rotation 9 of the drive member 12 transversely, preferably substantially at right angles, to the direction of the linear damping stroke of the piston 15 extends.
    Innsbruck, on 04.01.2013 9/21
    权利要求:
    Claims (15)
    [1]
    • · · · · ··· # ·· · · · ······· 1. Damping device (10) for movable furniture parts (3), comprising: - a damper housing (11), - at least one in the damper housing (11) arranged and filled with damping fluid fluid chamber ( 14), in which a piston (15) is displaceably mounted, - a seal (30) which seals the piston (15) with respect to the damper housing (11), characterized in that the seal (30) is provided with a first portion (25 ) on the piston (15) and with a second portion (26) on the damper housing (11) each fluid-tight manner or formed thereon, wherein the seal (30) during a relative movement between the piston (15) and fluid chamber (14) deformed.
    [2]
    2. Damping device according to claim 1, characterized in that the first portion (25) of the seal (30) with an end portion of the piston (15), preferably frictionally connected.
    [3]
    3. Damping device according to claim 1 or 2, characterized in that the first portion (25) of the seal (30) the circumferential surface of the piston (15) - at least partially in the longitudinal direction of the piston (15) - completely surrounds.
    [4]
    4. Damping device according to one of claims 1 to 3, characterized in that the first portion (25) of the seal (30) has a, preferably cylindrical, bag (20) for receiving the piston (15).
    [5]
    5. Damping device according to claim 4, characterized in that the piston (15), preferably via a sack (20) plugged cap (23), by a movably mounted drive part (12) of the damping device (10) can be acted upon. 10/21 t · · · · ·

    [6]
    6. Damping device according to claim 5, characterized in that the drive part (12) is rotatably mounted.
    [7]
    7. Damping device according to claim 5 or 6, characterized in that the drive part (12) is led out at least partially from the fluid chamber (14) and a fastening device (29) for, preferably non-rotatable, connecting to a separate from the damper housing (11) actuator ( 31).
    [8]
    8. Damping device according to one of claims 1 to 7, characterized in that the seal (30) has a variable during the damping stroke in the form of protuberance (40).
    [9]
    9. Damping device according to one of claims 1 to 8, characterized in that the seal (30) defines a variable compensation chamber (38) for compensating for a change in volume of the in the fluid chamber (14) dipping piston (15).
    [10]
    10. Damping device according to claim 9, characterized in that the seal (30) is connected to a deformable, preferably bag-shaped compensating body (21), wherein by a deformation of the compensating body (21) a change in volume of the in the fluid chamber (14) plunging piston (15) is compensatable.
    [11]
    11. Damping device according to claim 10, characterized in that the deformable compensating body (21) in a separate from the fluid chamber (14) compensating space (38) of the damper housing (11) is accommodated.
    [12]
    12. Damping device according to claim 11, characterized in that the longitudinal axis of the compensation chamber (38) extends laterally parallel to the longitudinal axis of the fluid chamber (14). 11/21
    [13]
    13. Damping device according to one of claims 1 to 12, characterized in that a return spring (19) is provided, through which the piston (15) is reset after a successful damping stroke in a provided for the next damping stroke ready position.
    [14]
    14. furniture fitting with a damping device according to one of claims 1 to 13 for damping a movement of the furniture fitting.
    [15]
    15. Furniture fitting according to claim 14, characterized in that the furniture fitting is designed as a furniture hinge (4), wherein the furniture hinge (4) has a hinge cup (6) which is connected to a hinge arm (5) via at least one articulated lever (8) , wherein the damping device (10) is mounted in or on the hinge cup (6) and can be acted upon by the articulated lever (8). Innsbruck, on the 04.01.2013 12/21
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    同族专利:
    公开号 | 公开日
    AT513801B1|2019-02-15|
    CN205047026U|2016-02-24|
    WO2014107749A1|2014-07-17|
    DE212013000268U1|2015-08-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE7916999U1|1978-06-14|1982-08-19|Kabushiki Kaisha Secoh Giken, Tokyo|PISTON UNIT|
    WO1989005388A1|1987-12-09|1989-06-15|Paul Hettich Gmbh & Co.|Furniture hinge|
    DE4328696A1|1993-08-26|1995-03-02|Menkhoff Karlheinz|Shock absorber without dynamic seals|
    WO2010108203A1|2009-03-25|2010-09-30|Julius Blum Gmbh|Furniture hinge|
    JP2011102638A|2009-11-12|2011-05-26|Honda Motor Co Ltd|Liquid sealing stopper for vehicle|US20140331451A1|2012-02-16|2014-11-13|Julius Blum Gmbh|Furniture hinge|JPS6139536B2|1981-04-13|1986-09-04|Itsuki Ban|
    US4738434A|1986-04-07|1988-04-19|Marjoram Robert H|Vibration and/or shock attenuating fluid mount or the like|
    JP3838826B2|1999-09-28|2006-10-25|ローム株式会社|Chip type semiconductor device|
    AT511847B1|2011-08-31|2013-03-15|Blum Gmbh Julius|DAMPING DEVICE FOR MOVABLE FURNITURE PARTS|GB2529250B|2014-08-15|2020-09-09|Titus Doo Dekani|Improvements in hinge assemblies|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA13/2013A|AT513801B1|2013-01-08|2013-01-08|Damping device for movable furniture parts|ATA13/2013A| AT513801B1|2013-01-08|2013-01-08|Damping device for movable furniture parts|
    CN201390001038.XU| CN205047026U|2013-01-08|2013-11-18|A buffer device and furniture partn for movable furniture part|
    DE212013000268.8U| DE212013000268U1|2013-01-08|2013-11-18|Damping device for movable furniture parts|
    PCT/AT2013/000191| WO2014107749A1|2013-01-08|2013-11-18|Damping device for displaceable furniture parts|
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