• 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:
    Radial type vibration damping device for a washing tank of a washing machine with three joints that rotate in their corresponding axes of rotation and at least one of the joints offers resistance to frictional rotation. The distance between the first axis of rotation and the second axis of rotation and/or the distance between the second axis of rotation and the third axis of rotation is variable while the joint or joints that offer resistance to rotation by friction do not exert frictional force. In this way, the moving noise of the machine can be reduced by having free movement. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2592569A1
    申请号:ES201530757
    申请日:2015-05-29
    公开日:2016-11-30
    发明作者:Ismael Gracia Bobed
    申请人:BSH Electrodomesticos Espana SA；
    IPC主号:
    专利说明:

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    to the torque capacity of at least one of its articulation pieces. This is also a great advantage to extend the life of the damping device. In this way, it is avoided that the forces suffered by the damping device in the other directions that are not working can damage it or cause changes in one of its main properties such as frictional force. This embodiment may be independent of the realization of a rotational damper with the variable wheelbase in a joint piece but then it would be a damper without free travel.
    In a particular embodiment, the vibration damping device comprises the first articulation piece with a first end and a second end provided for articulating connection to the washing tank by means of the first articulation, the second articulation part, with a first end. and a second end, the first end of the second articulation piece being articulated joined to the first end of the first articulation piece, by means of the second articulation and the second end of the second articulation piece being provided for joining the housing articulated by means of the third joint where the first end and the second end of at least one of the variable articulation pieces are connected with limited longitudinal movement capacity relative to each other between two limiters.
    Variable joint piece is one that can extend or compress its length. The length of the articulation piece must be understood as the distance between the pivot axes that joins the articulation piece.
    The advantage that a damping device has limiters in one of the articulation pieces is that the limiters allow simple and precise control when the damper does not exert frictional force and when it does. The limiters help define the length of free travel in which they do not have to exert frictional force, which is the distance between the limiters. In this way the limiter acts as a device that determines the onset of the frictional force.
    Preferably, the limiters can be integrated in the joint piece itself or can be fixed to the joint piece in different ways such as by dragging, by clip, welding, using adhesive means, using additional fixing elements or any other equivalent fixing system. The free travel length between the limiters is 1 mm to 30 mm, preferably 3 mm to 20
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    perfectly in the free travel damper of the invention.
    In a particular embodiment, the variable joint piece is attached to at least one joint by means of a bolt arranged in the rotation axis with rotation capacity and the bolt is integral with one end of the variable joint piece forming a connecting piece .
    This embodiment has the advantage of reducing both the number of parts and the cost of the damping device. It also facilitates and lowers your manufacturing process.
    In a particular embodiment the second articulation piece additionally comprises at its first end two U-shaped lugs each comprising a hole and which are arranged spaced apart from each other, and because the first end of the first variable articulation piece is the connection piece that connects to the holes of the lugs and where the rod disposed at the second end of the first variable articulation piece is inserted into the hole of the connection piece.
    In the case of the joint between the second joint piece and the connecting piece, the relative size of the holes of the lugs and the ends of the connecting piece inserted therein is such that the joint between the connecting piece and the second joint piece has enough clearance to allow the connection piece to rotate on the axis of rotation of the joint.
    The U-shaped lugs can be at either end of both articulation pieces and / or in the wash tank and / or in the housing. Likewise, the connection piece can be located in the first joint and / or second joint and / or third joint.
    In a particular embodiment the rod comprises the limiters and the connecting piece is disposed between them.
    In this way it is possible to have a free travel length for the damping device that is the distance between the limiters. While the displacement of the wash tank is less than the distance between limiters, the variable articulation piece varies its length while the connecting piece rotates along the axis of rotation of the
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    Having the same geometry in the perimeter of the rod and the perimeter of the hole facilitates the assembly of the rod in the hole and facilitates the possibility of turning on the torsion axis of the articulation piece with the possibility of turning on its torsion axis . Of course the dimension of the perimeter of the hole must be greater than the dimension of the perimeter of the rod to facilitate the rotation of the articulation piece on its torsion axis.
    In a particular embodiment the connection piece has a central region where the hole is located, in addition one of the holes of the lugs is larger than the central region, and at least one end of the connection piece has a protrusion that limits the displacement of the connecting piece on the axis of rotation.
    The advantage of this connection piece design is that several functions are integrated therein, such as the hole of the variable articulation piece and that of defining the position of the connection piece in the axis of rotation, which minimizes the number of parts of the damping device to reduce the costs thereof as well as make the manufacturing process easier.
    In this particular embodiment one of the holes of one of the lugs of the first end of the second articulation piece comprises a groove. Advantageously, the groove is adapted to facilitate the insertion of the connecting piece reducing assembly costs.
    In this particular embodiment, the first end of the connection piece comprises a tip with a protuberance suitable for insertion into the groove. Advantageously, the tip is adapted to facilitate the insertion of the connecting piece into the holes of the lugs of the second articulation piece reducing assembly costs and the protuberance acts as an anti-return element and prevents the connection piece from disengaging in the case of suffering a vibration or force in the direction of the shaft, ensuring the optimal functioning of the shock absorber.
    In this way the connection piece has two stops, which correspond to the second end of the connection piece against one of the lugs and the central region against the other lug, in the direction of mounting or insertion of the connection piece into the holes. of the lugs of the first end of the second articulation piece. It also has two anti-return elements in the direction of disassembly of the connecting piece that
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    Figure 5 This figure shows an embodiment of the connection piece according to the invention. Figure 6 This figure shows the connection piece connected with the second articulation piece in an embodiment of the invention.
    Figure 7 This figure shows an exemplary embodiment of the damping device according to the invention with the variable joint piece attached to the housing of a washing machine.
    Figure 8 This figure shows an embodiment of the device according to the invention.
    Figure 9 This figure shows a possible configuration of a washer or dryer machine containing at least one vibration damping device according to the invention. DETAILED EXHIBITION OF THE INVENTION
    An exemplary embodiment of the damping device 1 according to the invention is shown in Figure 1. The first articulation piece 2 is observed, which is the variable articulation piece in this case, which comprises a second end 22, prepared to be connected in an articulated manner to the washing tank of a washing machine through the rotation axis 10, belonging the axis of rotation 10 to the first joint 4 that joins the damping device to the wash tank 36, the second end 22 ends in a rod 21 prepared to be inserted in the hole 16 of the connection piece 7. The connection part 7 is furthermore the first end of the first articulation piece 2. The second articulation part 3 is also observed, comprising, a first end 31 articulatedly connected to the first end 7 of the first articulation piece 2 by means of the rotation axis 20 , the rotation axis 20 belonging to the second joint 5 and a second end 32 intended to be articulated to the casing of a washing machine through the rotation axis 30 , the rotation axis 30 belonging to the third joint 6.
    The limiters 34 and 35 are also observed in the first joint 2 to delimit the free travel length of the damping device. The limiters 34 and 35 are located in the rod 21 and contain the connecting piece 7 between them. The rod 21 is in this case circular perimeter as is the perimeter of the through hole 16 of the central region 15 of the piece of connection 7, which allows the first articulation piece 2 to rotate through its torsion axis 26, which enables this piece to absorb the vibrations that occur in the wash tank in the other directions that are not the damping.
    The first end 31 of the second articulation piece 3 contains two lugs 8 and 9 each of which contains a hole 11 and 12 through which the first end 7 of the first articulation piece 2 is inserted The second end of the second piece of articulation 3 is prepared to contain a friction element in the third articulation 6 being in this case the articulation 6 the friction articulation.
    A partially exploded view of an embodiment of the first articulation piece 2 of the damping device 1 of the invention is shown in Figure 2. In this embodiment, the articulation piece 2 is the variable articulation piece. The first end 7 of the first articulation piece 2 is disengaged from the second end 22 of the first articulation piece 2 for better appreciation thereof. In said figure, the rod 21 of the first articulation piece 2 arranged to be accommodated in the hole 16 is shown, through in this case, located in the central region 15 of the connecting piece 7, so that the rod is allowed to be slide through hole 16 facilitating the extension and compression of the first articulation piece 2, as well as the rotation of the first articulation piece 2 on its torsion axis 26. In this case, both the rod 21 of the first piece of articulation 2 as the through hole 16 of the connection piece 7 have a cylindrical shape. The rod 21 ends at one end in the limiter 34 and at the other end in the limiter 35. The distance between the limiters 34 and 35 is the distance that the variable articulation piece can be extended or compressed and is the distance that defines the free travel of the damping device 1.
    Thanks to said joint between the connecting piece 7 and the second end of the first articulation piece 22, the damping device 1 can compensate for all displacements with its length variation in axial direction as well as absorb forces in the other directions due to the turning capacity of the first articulation piece 2 on its torsion axis 26 solving the problems seen in relation to the state of the art. The torsion axis 26 is the shortest distance that joins the rotation axes 10 and 20 which are the ones that join the articulation piece 2.
    It is further observed that the second end of the first articulation piece 2 comprises a rod 21 of substantially cylindrical shape, and a central part 23, in addition to being prepared to be articulated to the washing tank of a washing machine or a dryer.
    In other embodiments, the rod 21 as well as the central part 23 of the first articulation piece 2 may have a different shape, such as a prism, with a regular or irregular polygonal cross section, with a starry prism with a plurality of points , with a cross section in the shape of a cross.
    A particular embodiment of a second articulation piece 3 according to the invention is shown in Figure 3. In this embodiment the second articulation piece 3 comprises a first end 31 comprising two lugs 8, 9 each comprising a hole 11, 12, and a second end 32 adapted to join a carcass of a washing machine by means of an articulated joint which allows the rotation around a third axis of rotation 30 that will form the third joint 6.
    In this embodiment, the lugs 8, 9 are substantially flat, are spaced a distance d and are arranged substantially parallel to each other, with the holes 11, 12 located on the same axis of rotation 20 substantially perpendicular to the imaginary planes that they contain the lugs 8, 9. In a particular embodiment the distance (d) between the two lugs 8, 9 is in the range of 1 to 6 cm. This axis of rotation 20 is part of the second joint 5.
    The shape of the holes 11, 12 of the lugs 8, 9 of the first end 31 of the second articulation piece 3 is adapted to allow the housing of the ends of the connecting piece 7. In this particular embodiment, the hole 12 of the First end 31 of the second articulation piece 3 has a groove 18 that is adapted to facilitate the assembly of the connection piece 7 allowing the central region 15 of the connection piece 7 to be housed between the lugs 8, 9 as will be shown. later in figure 6.
    Figure 4 shows a profile view of the second articulation piece 3 shown in Figure 3. In this figure the second axis of rotation 20 and the third axis of rotation 30 on which the second joint piece 3 can rotate they are perpendicular to the plane of the figure. On the one hand, the axis of rotation 20 of the second joint 5, on which the first articulation piece 2 connected to the second articulation piece 3 rotates by means of the connecting piece 7 which is housed in the holes 11, 12 of the lugs 8, 9 of the first end 31
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    recoil of the connection piece 7 so that it does not disengage in case of a vibration or force F1 in the direction of the longitudinal axis 20 and in the direction of the first end 13 to the second end 14 of the connection piece 7, ensuring the correct position of the connecting piece and the optimal functioning of the shock absorber.
    The central region 15 of the connection piece 7 is smaller than the hole 12 in the groove area 18 and larger than the hole 12 in the groove-free zone. In this way the central region 15 can pass through the groove 18 of the hole 12 of the lug 9 in the mounting position and then rotate it 90 ° in either of the two directions of rotation (hourly or counterclockwise) on the axis 20 making the central region 15 of the anti-return element against the lug 9. In this way the connection piece 7 is allowed to pass through the hole in the groove 18, while preventing the recoil of the connection part 7 so that it does not disengage in the case of a vibration or force F1 in the direction of the longitudinal axis 20 and in the direction of the first end 13 to the second end 14 of the connection piece 7, ensuring the correct position of the connection piece and the optimal functioning of the shock absorber.
    The size of the central region 15 is larger than the size of the hole 11 of the lug 8. This prevents the passage of the central region 15 through the hole 11 preventing the connection piece 7 from disengaging in the case of undergo a vibration or force F2 in the direction of the longitudinal axis 20 and in the direction of the second end 14 to the first end 13 of the connection piece 7, ensuring the correct position of the connection piece and the optimum operation of the second articulated joint .
    The second end 14 of the connecting piece 7 additionally comprises a final portion 24 larger than the size of the hole 12 of the lug 9 of the second articulation piece 3. The final portion 24 is adapted to ensure the joint between the second articulation piece 3 and the second end 14 of the connection piece 7, preventing the connection piece 7 from disengaging in the event of a vibration or force F2 in the direction of the longitudinal axis 20 and in the direction of the second end 14 to the first end 13 of the connection piece 7, ensuring the correct position of the connection piece and the optimum operation of the second articulated joint.
    In this way the connection piece has up to two anti-return elements in the case of suffering force or vibration F1 in the direction of the axis of rotation 20 in the direction of the first end
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    A preferred embodiment comprises three damping devices preferably located two of them on one side of the wash tank and a third on the other side of said wash tank.
    5 In the case, for example, of a washing machine with an oscillating group whose weight is around 50 Kg, it is typical to have three shock absorbers, two of them on the left side and one of them on the right side of the washing tank in which The nominal friction forces of the radial dampers are between 30 N and 60 N.
    10 Four damping devices preferably located two on each side of the washing tank can also be arranged. REFERENCE LIST
    one.  Damping device
    2.  First articulation piece
    3.  Second joint piece
    Four.  First joint 5.- Second joint
    6.  Third joint
    7.  Connecting piece
    8.  Ear
    9.  Ear
    10.  Axis of rotation
    eleven.  Lug hole
    12.  Lug hole
    13.  First end connection piece
    14.  Second end connection piece
    fifteen.  Central region connecting piece
    16.  Central region through hole
    17.  Anti-noise element or first silentblock
    18.  Groove
    19.  Boss
    twenty.  Axis of rotation
    twenty-one.  Stem
    22  Second end first articulation piece
    2. 3.  Center part first articulation piece
    24.  Final portion connection piece
    25.  Tip connection piece
    26.  Torsion shaft first joint piece
    27.  Cap screw
    29.  Case
    30  Axis of rotation
    31.  First end second articulation piece
    32  Second end second articulation piece
    33.  2nd Silentblock
    3. 4.  First limiter
    35  Second limiter
    36.  Washing tank
    37.  Drum
    38.  Engine
    39.  Pulley mechanism
    40  belt
    41.  Suspension elements
    42  Friction element
    43  Cap
    44.  Washer or dryer machine
    权利要求:
    Claims (1)
    [1]
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    同族专利:
    公开号 | 公开日
    ES2764149T3|2020-06-02|
    ES2592569B1|2017-09-08|
    EP3303681A1|2018-04-11|
    CN107667193B|2020-03-03|
    EP3303681B1|2019-12-18|
    CN107667193A|2018-02-06|
    WO2016193833A1|2016-12-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2007013021A1|2005-07-25|2007-02-01|Arcelik Anonim Sirketi|A washer/dryer|
    US20070039792A1|2005-08-16|2007-02-22|Suspa Holding Gmbh|Damper|
    ES2387205A1|2010-11-26|2012-09-18|BSH Electrodomésticos España S.A.|Domestic appliance comprising a vibration damping device|
    ES2431464A2|2012-05-23|2013-11-26|BSH Electrodomésticos España S.A.|Radial free-travel vibration damper, and household appliance with a dampening system comprising said radial damper|
    DE1290908B|1961-08-23|1969-03-20|Tech Fortschritt Mbh Ges|Drum washing machine|
    US20040144137A1|2003-01-29|2004-07-29|Gwan-Ryong Park|Damper of washing machine|
    US7204104B2|2003-01-30|2007-04-17|Lg Electronics Inc.|Damper of drum type washing machine|
    DE102004047999A1|2004-10-01|2006-04-06|BSH Bosch und Siemens Hausgeräte GmbH|Friction damper device for a washing machine|
    EA023587B1|2009-12-10|2016-06-30|Бсх Хаусгерете Гмбх|Household appliance for laundry treatment, in particular washing machine or dryer|
    ES2435102B1|2012-05-23|2014-09-24|Bsh Electrodomésticos España, S.A.|Rotary damping device for home appliance|
    ES2547364B1|2014-04-04|2016-07-14|Bsh Electrodomésticos España, S.A.|Radial damping device of oscillations of an oscillating group of a washing machine, articulation device and washing machine comprising the damping device|CN110144703B|2019-06-27|2021-02-12|朱幕松|Low noise drum type washing machine|
    法律状态:
    2017-09-08| FG2A| Definitive protection|Ref document number: 2592569 Country of ref document: ES Kind code of ref document: B1 Effective date: 20170908 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201530757A|ES2592569B1|2015-05-29|2015-05-29|Damping device|ES201530757A| ES2592569B1|2015-05-29|2015-05-29|Damping device|
    ES16721950T| ES2764149T3|2015-05-29|2016-05-03|Vibration damping device|
    CN201680031439.8A| CN107667193B|2015-05-29|2016-05-03|Vibration damping device|
    EP16721950.0A| EP3303681B1|2015-05-29|2016-05-03|Vibration damping device|
    PCT/IB2016/052503| WO2016193833A1|2015-05-29|2016-05-03|Vibration damping device|
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