• 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:
    In a damping device for damping the movement of a movable furniture part, such as drawer, flap o. The like., With at least one damper (12) having a damper housing (13) in which a damper piston (14) is movably guided, the damper housing (13) divided into a first and a second working chamber (22, 23) and displaced in the damper housing (13) hydraulic fluid via at least one overflow channel (24) from one to the other working chamber (22, 23) displaced, wherein the at least one overflow channel (24) an actuator for controlling the flow over the overflow (24) displaced flow rate is assigned to hydraulic fluid, the actuator as coaxial with the damper piston (14) arranged piston disc (28) is formed whose outer circumference with the inner circumference of the damper housing (13) has an annular Overflow annular gap (37) defines, wherein the piston disc (28) consists of elastically deformable material, the depending on the kinetic energy of the movable furniture part to be braked, differently large overflow annular gaps (37) can be deformed.
    公开号:AT15609U1
    申请号:TGM50087/2015U
    申请日:2015-05-15
    公开日:2018-03-15
    发明作者:Bilgeri Reinhard
    申请人:Grass Gmbh；
    IPC主号:
    专利说明:

    description
    DAMPING DEVICE
    The invention relates to a damping device for damping the movement of a movable furniture part, such as drawer, flap or the like, with at least one damper having a damper housing in which a damper piston is movably guided, the damper housing in a first and a second Subdivided working chamber and located in the damper housing hydraulic fluid via at least one overflow from one to the other working chamber, wherein the at least one overflow is associated with an actuator for controlling the displaced via the overflow channel flow rate of hydraulic fluid.
    In furniture used damping devices of this type have been known for a long time. Such damping devices serve, for example, for damping the retraction movement of a drawer into the closed position or the extension movement of the drawer into the open position. Even with flaps on upper cabinets such damping devices are used to dampen the flap movement.
    Conventional damping devices for damping the movement of a movable furniture part act load and speed independent. The result of this is that movable furniture parts with high kinetic energy, ie those which move at high speed or have a large mass, are decelerated or damped differently than those with lower kinetic energy. Depending on the kinetic energy to be braked, this therefore leads to different appearances during the damped retraction of movable furniture parts into their final position.
    The object of the invention is to provide a damping device of the type mentioned, the damping effect can be adapted to different kinetic energies of movable furniture parts and thus always provides the same comfort in the damped retraction of the movable furniture part in the end position.
    This object is achieved by a damping device for damping the movement of a movable furniture part having the features of the independent claim 1. Further developments of the invention are shown in the subclaims.
    The damping device according to the invention is characterized in that the actuator is designed as a coaxial with the damper piston piston disc whose outer circumference defines an annular overflow annular gap with the inner circumference of the damper housing, wherein the piston disc consists of elastically deformable material, depending on the kinetic energy of the movable furniture part to be braked is generated in such a way as to produce deformable different sized overflow annular gaps.
    Depending on the kinetic energy to be braked, the overflow annular gap becomes smaller or larger as a result of the elastic deformability of the piston disk, as a result of which a flow volume of different degrees of hydraulic fluid flows from one to the other working chamber. Thus, if a movable furniture part is to be slowed down with high kinetic energy, the overflow annular gap becomes smaller, so that overall less hydraulic fluid flows over and the damping device is altogether stiffer than with movable furniture parts with lower kinetic energy. As a result, the damping effect adapts depending on the kinetic energy to be braked, and the same appearance is always available when the movable furniture part is damped to retract into the end position. It can be, for example, designed as a drawer movable furniture part that is moved at high speed from the open position towards the closed position with the same appearance as a drawer, which is slowly moved toward the closed position.
    In a further development of the invention, the damper piston is connected to a piston rod which is led out of the damper housing, and can be coupled with the movable furniture part to be braked. In this case, the damper housing would be stationary while damper piston and piston rod are moved by the movement of the movable furniture part with. Alternatively, it would also be possible to assign the damper housing the movable furniture part and to arrange the piston rod stationary.
    In a further development of the invention, the piston disc is arranged on the side facing away from the piston rod of the damper piston.
    In a particularly preferred manner, the piston disc is fastened by means of fastening means on the damper piston. The fastening means have a fastening sleeve on which the piston disk is threaded by means of a central aperture formed in the piston disk. Of course, it is also possible to fix the piston disc in a different way to the damper piston, for example directly without a mounting sleeve. Alternatively, it would also be quite conceivable to guide the piston rod through the damper piston and use this to attach the piston disc.
    Conveniently, the piston disc is plate-shaped. It may have a curved profile in cross-section. It is possible for the piston disk to have a piston disk base portion and a piston disk functional portion that is concentric with the piston disk base portion, in particular integrally therewith. Particularly preferably, the piston-disc functional section extends obliquely in cross section to the piston-disc base section.
    In one embodiment of the invention a plurality, in particular formed on a concentric with the longitudinal axis of the damper circular path formed in the damper piston overflow. Conveniently, the transfer channels are arranged distributed at regular intervals on the circular path.
    In a further development of the invention, the piston disc on the outer circumference a plurality of notches. Expediently, the overflow annular gap formed between the outside of the piston disk and the inside of the damper housing is thereby enlarged in the region of the notches of the piston disk. In particular, it is achieved that hydraulic fluid can flow through the notches even when the outer circumferential surface of the piston disc on the inner wall of the damper housing and pass into the transfer channels.
    In a further development of the invention, one of the first piston chamber associated linearly displaceably mounted balance piston is provided in the damper housing, which increase with increasing displacement of hydraulic fluid in the second working chamber this is displaceable against a return element.
    The return element is preferably formed as a compression spring. Alternatively, it would also be conceivable to form the return element as an air spring.
    The invention further comprises a piece of furniture, with a furniture body and a movable furniture part mounted or guided in the furniture body, such as drawer, flap or the like, characterized by a damping device according to one of claims 1 to 10.
    Embodiments of the invention are illustrated in the drawings and will be explained in more detail below.
    FIG. 1 shows a longitudinal section through a preferred exemplary embodiment of the damping device according to the invention, FIG. 2 shows an enlarged representation of the detail X of the damping device of FIG
    FIG. 1, [0021] FIG. 3 is a front view of the piston disk of the damping device of FIG
    FIG. 4 shows a section along the line IV-IV through the piston disk from FIG. 3, [0023] FIG. 5 shows a perspective view of a part of the damper with damper piston and piston rod of the damping device of FIG. 1, FIG 5 shows a front view of the damper of FIG. 5 with piston disk, and [0025] FIG. 7 shows a perspective illustration of the piston disk in a different embodiment than shown in FIG.
    1 shows a preferred embodiment of the damping device 11 according to the invention. The damping device 11 is suitable for damping the movement of a movable furniture part (not shown). The movable furniture part can be designed as a drawer, flap, door or the like. In the case of a designed as a drawer movable furniture part, the damping device 11 may for example be mounted on a guide means for guiding the drawer. For example, it would be possible to attach the damping device 11 to a carcass angle mounted in a drawer compartment receiving the drawer. When designed as a flap movable furniture part, the damping device 11 may for example be mounted on a fitting, which in turn performs the flap in the opening and closing movement.
    The damping device 11 has at least one damper 12, which has a suitably cylindrical damper housing 13, in which a damper piston 14 is guided linearly movable. The damper housing 13 is suitably made of plastic. It can be embodied, for example, as a plastic injection molded part produced by means of plastic injection molding. The damper housing has a pipe section 15 to which at both ends in each case a housing cover 16a, 16b is attached. The pipe section 15 and the two housing cover 16a, 16b define a cylindrical housing interior 17, in which the damper piston 14 is received and guided linearly movable. The housing interior 17 is bounded in the radial direction by an inner wall 18 of the pipe section 15.
    As shown in particular in Figure 1, one of the two housing cover 16a may be integrally connected to the pipe section 15 and be formed in the manufacture of the pipe section 15 with the same. The other of the two housing cover 16b is a separate component from the pipe section 15, which has a central passage opening 19 for carrying a piston rod 20 connected to the damper piston 14.
    As shown in particular in Figure 1, the piston rod 20 has at one end an interface 21 to which, for example, the movable furniture part in the form of the drawer, flap or the like can be coupled. In this case, the piston rod 20 is thus movable with the movement of the movable furniture part and moves to achieve a damping effect in the damper housing 13 a.
    At the end of the piston rod 20, which is opposite to the end equipped with the interface 21, the damper piston 14 is attached. The damper piston 14 divides the housing interior 17 into a first and a second working chamber 22, 23. In the damper housing 13 is hydraulic fluid, such as hydraulic oil, by the movement of the damper piston 14 from one to the other working chamber 22, 23 via at least one overflow 24th is displaced.
    As shown in particular in Figure 2, the damper piston 14 is cylindrical and has a lateral surface 25 which is held in sealing engagement with the inner wall 18 of the pipe section 15 and guided there slidably.
    As shown in particular in a variant embodiment in Figure 5, the damper piston 14 may be guided in the radial direction of the inner wall 18 inwardly projecting guide webs 26. The guide webs 26 each extend coaxially to a longitudinal axis 27 of the damper piston 14. The guide webs 26 serve to center the damper piston 14 and hold it centrally in the housing interior 17. Γ0033Ί As also shown in Figure 5 in particular, several are each coaxial with the longitudinal axis 27 through the damper piston extending through overflow 24 provided. According to the preferred embodiment, the transfer passages 24 are arranged distributed at regular intervals on a circular path. The mouths of the overflow channels 24 may be formed, for example, in the manner of a circular ring segment.
    The overflow 24 is associated with an actuator for controlling the displaced via the overflow flow rate of hydraulic fluid.
    The actuator is designed as a coaxial with the damper piston 14 arranged piston disk 28. The piston disc 28 is made of elastically deformable material, for example elastomeric material.
    As shown in particular in Figure 2, the piston disc 28 is formed as a perforated disc, with a central opening 29, by means of which it is threaded onto fastening means in the form of a fastening sleeve 30. The fastening sleeve 30 has a base portion 31, which has a central passage opening 32, through which a fastening screw 33 can be guided, via which the fastening sleeve 30 is mounted on the damper piston 14. At the base portion 31 of the mounting sleeve 30, a flange-like bearing portion 34 connects, which has a larger diameter relative to the base portion 31. The diameter of the bearing portion 34 is also larger than the diameter of the central opening 29 in the piston disk 28. The piston disk 28 is attached by means of its central opening 29 on the base portion 31 of the mounting sleeve 30.
    The piston disk 28 in turn has a hole-disc-like piston disk base portion 35 which abuts in the mounted state of the piston disk 28 on the bearing portion 34 of the mounting sleeve 30, wherein the piston disk base portion 35 by the fastening screw 33 between the damper piston and the bearing portion 34 of the mounting sleeve 30th is clamped. There is a concentric with the piston-disc base portion 35 arranged and there integrally formed annular piston disc functional portion 36 is provided, which, as shown in Figures 2 and 4, is attached at an angle to the piston disc base portion 35. The piston disk 28 therefore has a curved profile in cross section.
    As shown in particular in Figure 2, the curvature of the piston plate 28 extends in the mounted state in a direction radially outward from the damper piston 14 away. It is possible that the piston disc 28 is a multi-component component, wherein, for example, the piston disc base portion 35 may be formed of stiffer material than the elastically deformable piston disc functional portion 36th
    An essential aspect of the invention is that an annular overflow annular gap 37 (FIG. 2) is defined between the outer circumference of the piston disk 28, that is to say the outer circumference of the piston disk functional portion 36 and the inner wall 18 of the damper housing 13. The elastic material of the piston disc 28 or of the piston disc-functional portion 36 is deformable depending on the kinetic energy of the movable furniture part to be deconstructed differently large overflow annular gaps 37 generating. During the movement of the damper piston 14, hydraulic fluid, in particular hydraulic oil, flows from the first working chamber 22 via the overflow annular gap 37 through the overflow channels 24 into the second working chamber 23.
    As shown in particular in Figure 7, the piston disc 28 has in one embodiment at its piston-functional portion 36 on its outer circumference a plurality of indentations 38, which are expediently arranged at regular intervals to each other over the outer circumference of the piston disc functional portion 36 distributed.
    As shown in particular in Figure 1, a second working chamber 23 associated linearly displaceably mounted balance piston 39 is provided in the damper housing 13, which is displaceable with increasing displacement of hydraulic fluid in the second working chamber 23, this against a return element. The return element is formed in the example as a return spring 40.
    To damp the motion of a movable furniture part, such as a drawer when entering the closed position, the drawer or a connected to the drawer component, such as a drawer rail comes into contact with the interface 21 of the piston rod 20. The movement of the drawer is on the piston rod 20 transmitted and the piston rod is moved with. The piston rod 20 now moves into the damper housing 13. The piston rod 20 is connected at the other end to the damper piston 14, which is moved in the state shown in the figure 1 to the right. In this case, located in the first working chamber 22 hydraulic fluid, such as hydraulic oil, displaced via the overflow annular gap 37, flows into the overflow 24 and from there into the second working chamber 23. Since the second working chamber 23, the piston rod 20 projects through, is less volume for incoming hydraulic fluid available. When hydraulic fluid flows in, the compensating piston 39 comes into operation, which moves counter to the spring force of the return spring 40 to the left, whereby the second working chamber 23 is increased.
    Due to the elastic deformability of the piston-disk functional section 36, differently sized overflow annular gaps arise as a function of the kinetic energy to be decelerated. At high kinetic energy to be slowed down, that is to say, for example, at a high speed of the movable furniture part to be braked, a relatively small clearance of the overflow annular gap 37 arises as a result of the elastic deformability of at least the piston disk functional section, as a result of which the system as a whole becomes stiffer and therefore also this large kinetic Energy converted reliably and therefore the drawer is reliably braked.
    At lower kinetic energy, for example in drawers with low weight or such that slowly retract to the closed position, a larger gap size of the overflow annular gap sets, whereby more hydraulic fluid can flow over.
    The damping effect of the damping device thus varies depending on the kinetic energy of the movable furniture part to be braked. This essentially always the same comfort when entering the closing or extending is achieved in the open position.
    权利要求:
    Claims (11)
    [1]
    claims
    1. Damping device for damping the movement of a movable furniture part, such as drawer, flap o. The like., With at least one damper (12) having a damper housing (13) in which a damper piston (14) is movably guided, the damper housing (13) divided into a first and a second working chamber (22, 23) and in the damper housing (13) located hydraulic fluid via at least one overflow channel (24) from one to the other working chamber (22, 23) displaced, wherein the at least an overflow channel (24) is associated with an actuator for controlling the flow volume of hydraulic fluid displaced via the overflow channel (24), characterized in that the actuator is formed as a piston disc (28) arranged coaxially with the damper piston (14) whose outer circumference is connected to the Inner circumference of the damper housing (13) defines an annular overflow annular gap (37), wherein the piston disc (28) made of elastically deformable em material consists, which is deformable deformable depending on the kinetic energy of the movable furniture part to be braked large overflow annular gaps (37).
    [2]
    2. Damping device according to claim 1, characterized in that the damper piston (14) with a piston rod (20) is connected, which is led out of the damper housing (13) and can be coupled with the movable furniture part to be braked.
    [3]
    3. Damping device according to claim 2, characterized in that the piston disc (28) on the piston rod (20) facing away from the damper piston (14) is arranged.
    [4]
    4. Damping device according to one of the preceding claims, characterized in that the piston disc (28) is fastened by means of fastening means on the damper piston (14).
    [5]
    5. Damping device according to claim 4, characterized in that the fastening means have a fastening sleeve (30) on which by means of a in the piston disc (28) formed central aperture (29), the piston disc (28) is threaded.
    [6]
    6. Damping device according to one of the preceding claims, characterized in that a plurality, in particular on a concentric with the longitudinal axis of the damper (12) formed circular path in the damper piston (14) formed overflow channels (24) are provided.
    [7]
    7. Damping device according to claim 6, characterized in that the overflow channels (24) distributed at regular intervals are arranged on the circular path.
    [8]
    8. Damping device according to one of claims 6 or 7, characterized in that the piston disc (28) on the outer circumference a plurality of notches (38).
    [9]
    9. Damping device according to one of the preceding claims, characterized in that in the damper housing (13) one of the second working chamber (23) associated linearly displaceably mounted balance piston (39) is provided, which with increasing displacement of hydraulic fluid in the second working chamber (23) enlarging against a return element is displaced.
    [10]
    10. Damping device according to claim 9, characterized in that the restoring element is designed as a compression spring (40).
    [11]
    11. Furniture, with a furniture body and a furniture body mounted or guided in the movable furniture part, such as drawer, flap or the like., Characterized by a damping device (11) according to one of claims 1 to 10. For this 3-sheet drawings
    类似技术:
    公开号 | 公开日 | 专利标题
    DE19642806C1|1998-01-02|Pneumatic motion damper featuring simple manufacture and solid reliability
    EP1348828A2|2003-10-01|Damping device for mobile furniture element
    EP1756446B1|2008-03-05|Device for damping or decelerating movable parts of pieces of furniture
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    DE102013112818A1|2015-05-21|spring element
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    EP3022459B1|2020-02-05|Device to slow down a motion
    AT15609U1|2018-03-15|damping device
    DE202009006233U1|2010-09-23|Damper cylinder for a damping device for furniture
    DE102008008268B4|2021-10-07|mute
    EP2949961B1|2018-01-10|Movement damping unit and spring unit with such a movement damping unit
    DE102004057561A1|2007-04-19|Pneumatic deceleration device for braking movable furniture parts, in particular drawers
    DE102013002425B3|2014-04-24|Shock absorber with an automatically adapting damping characteristic
    DE202007009773U1|2007-09-20|Braking and damping device for damping and decelerating the kinetic energy of mobile masses, e.g. Drawers, furniture doors, furniture flaps, swivel and revolving doors or the like.
    EP2087254B1|2013-03-06|Stop damper
    DE202014006289U1|2015-11-06|damping device
    DE102016224353A1|2018-06-07|Hydraulic end stop for a vibration damper
    DE102010031717A1|2012-01-26|Hydraulic vibration damper for damping mechanical vibrations of machine pieces of textile machine, has oil-filled cylinder housing, in which piston rod protrudes with damping piston
    DE202011108658U1|2012-01-18|Damping device for a furniture fitting
    DE202014001676U1|2015-05-26|Guide device for guiding a movable furniture part
    DE102015200450A1|2016-07-14|Vibration damper and motor vehicle
    DE202005021470U1|2008-03-27|adjustment
    DE102011104552A1|2014-05-08|Shock absorber for deceleration of moved-component e.g. propelled movable carriage, of e.g. handling machine, has hollow piston whose throttle opening is formed at exterior wall of stamper in work chamber
    同族专利:
    公开号 | 公开日
    DE202014004193U1|2015-08-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2002073064A1|2001-03-13|2002-09-19|Julius Blum Gesellschaft M.B.H.|Fluid damper, particularly for movable pieces of furniture|
    CN201027889Y|2007-05-01|2008-02-27|伍志勇|Furniture damper|
    WO2009003458A1|2007-07-04|2009-01-08|Zimmer Guenther|Fitting having fitting parts which can be pivoted relative to each other and having a deceleration device|
    CN201129105Y|2007-11-30|2008-10-08|伍志勇|Damper for furniture hinge|
    CN101672339A|2009-09-30|2010-03-17|伍志勇|furniture damper|
    WO2014032064A1|2012-08-27|2014-03-06|Julius Blum Gmbh|Damping device for movable furniture parts|AT523986A1|2020-07-13|2022-01-15|Blum Gmbh Julius|furniture damper|DE20221550U1|1977-02-03|2006-05-11|Julius Blum Gmbh|Fluid damper especially for movable parts of furniture has piston with several spaced apart annular discs with orifices for damping fluid and in part elastically bendable to cover orifices of disc below during piston's damping stroke|AT523688A1|2020-04-02|2021-10-15|Stiwa Automation Gmbh|Hydraulic shock absorber, as well as procedures for assembling a shock absorber|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE202014004193.8U|DE202014004193U1|2014-05-20|2014-05-20|damping device|
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