公开(公告)号：US06588554B2

公开(公告)日：2003-07-08

申请号：US10006906

申请日：2001-11-08

申请人： Etsunori Fujita ,  Yoshimi Enoki ,  Hiroki Oshimo

发明人： Etsunori Fujita ,  Yoshimi Enoki ,  Hiroki Oshimo

IPC分类号： F16F1503

CPC分类号： F16F6/005 ,  F16F2222/12 ,  F16F2228/063

摘要： The object of the present invention is to provide a vibration damping apparatus having 6 degrees of freedom using a magnetic circuit. Vibration transfer can be isolated by a vibration damping mechanism to set the spring constant utilizing a relative displacement of a movable magnet 37 to a stationary magnet 27 in an axial direction, and an elastic force of a metal spring 50 substantially to be zero. The displacement is quickly restored to an original position by a rubber 24a and the metal spring 50 composing a device to restore the displacement due to vibration not only in an axial direction (Z axis direction) but also in a horizontal direction (X or Y axis direction), in a rotational direction around each axis, or in a twisting direction which is an overlapping direction of these directions and is damped as a vibration in an axial direction. Accordingly, a vibration having 6 degrees of freedom can be controlled with a simple structure.

公开(公告)号：US06652783B2

公开(公告)日：2003-11-25

申请号：US10016292

申请日：2001-10-30

申请人： Etsunori Fujita ,  Yoshimi Enoki ,  Hiroki Oshimo

发明人： Etsunori Fujita ,  Yoshimi Enoki ,  Hiroki Oshimo

IPC分类号： E04B116

CPC分类号： F16F15/03 ,  B60G2202/16 ,  B60G2206/40 ,  F16F6/00

摘要： The object of the present invention is to improve the production efficiency by making its bonding process unnecessary to simplify the production process. The method of production comprises the step of integrally incorporating a magnetic material when the stationary holders 21 and 22 of the stationary member and the movable holder 31 of the movable member 30 are molded with a non-magnetic material such as a plastic material and the like. Therefore, a magnet unit in which the stationary magnets 23 and 24 or the movable magnet 32 is integrally incorporated into the stationary holders 21 and 22 or the movable holder 31 can be provided only by giving magnetization treatment on the magnetic material without using a bonding process.

公开(公告)号：US20100090514A1

公开(公告)日：2010-04-15

申请号：US12526972

申请日：2007-10-25

申请人： Etsunori Fujita ,  Hiroki Oshimo

发明人： Etsunori Fujita ,  Hiroki Oshimo

IPC分类号： B60N2/44 ,  A47C7/02 ,  G01G19/52 ,  G01G19/08

CPC分类号： B60N2/548 ,  B60N2/0705 ,  B60N2/1615

摘要： A seat in which a cushioning member has a high following ability to a human body motion and which can efficiently damp a vibration inputted from the outside is provided. The seat is constituted to use a torsion bar 112 and to support a cushioning member of a seat cushion section 150 by a parallel link mechanism having a first link plate 113 pivotally supported by the torsion bar 112, a second link plate 116 disposed in correspondence with the first link plate 113, and a connection link plate 117 connecting the first link plate 113 and the second link plate 116, and operational directions of the first link plate 113 and the second link plate 116 are set to almost coincide with a vertical direction along a surface of a seat back section. Thus, a rotational motion following a human body motion generated by an external vibration input is performed, so that a relative motion between a human body and the cushioning member is small and a resonance peak is lowered, whereby a vibration absorption characteristic can be improved.

摘要翻译： 提供了一种座椅，其中缓冲构件具有高的跟随人体运动能力并且可以有效地抑制从外部输入的振动。 座椅构成为使用扭力杆112，​​并且通过平行连杆机构支撑座垫部件150的缓冲构件，所述平行连杆机构具有由扭杆112可枢转地支撑的第一连杆板113，与第二连杆板 第一连接板113和连接第一连接板113和第二连接板116的连接连接板117以及第一连接板113和第二连接板116的操作方向几乎与沿垂直方向一致 座椅靠背部分的表面。 因此，执行由外部振动输入产生的人体运动之后的旋转运动，使得人体和缓冲部件之间的相对运动小，共振峰值降低，从而可以提高振动吸收特性。

公开(公告)号：US08104832B2

公开(公告)日：2012-01-31

申请号：US12526972

申请日：2007-10-25

申请人： Etsunori Fujita ,  Hiroki Oshimo

发明人： Etsunori Fujita ,  Hiroki Oshimo

IPC分类号： A47C31/00

CPC分类号： B60N2/548 ,  B60N2/0705 ,  B60N2/1615

摘要： A seat in which a cushioning member has a high following ability to a human body motion and which can efficiently damp a vibration inputted from the outside is provided. The seat is constituted to use a torsion bar 112 and to support a cushioning member of a seat cushion section 150 by a parallel link mechanism having a first link plate 113 pivotally supported by the torsion bar 112, a second link plate 116 disposed in correspondence with the first link plate 113, and a connection link plate 117 connecting the first link plate 113 and the second link plate 116, and operational directions of the first link plate 113 and the second link plate 116 are set to almost coincide with a vertical direction along a surface of a seat back section. Thus, a rotational motion following a human body motion generated by an external vibration input is performed, so that a relative motion between a human body and the cushioning member is small and a resonance peak is lowered, whereby a vibration absorption characteristic can be improved.

摘要翻译： 提供了一种座椅，其中缓冲构件具有高的跟随人体运动能力并且可以有效地抑制从外部输入的振动。 座椅构成为使用扭力杆112，​​并且通过平行连杆机构支撑座垫部件150的缓冲构件，所述平行连杆机构具有由扭杆112可枢转地支撑的第一连杆板113，与第二连杆板 第一连接板113和连接第一连接板113和第二连接板116的连接连接板117以及第一连接板113和第二连接板116的操作方向几乎与沿垂直方向一致 座椅靠背部分的表面。 因此，执行由外部振动输入产生的人体运动之后的旋转运动，使得人体和缓冲部件之间的相对运动小，共振峰值降低，从而可以提高振动吸收特性。

公开(公告)号：US06485103B1

公开(公告)日：2002-11-26

申请号：US09620829

申请日：2000-07-21

申请人： Toshihiko Yamada ,  Etsunori Fujita ,  Yumi Ogura ,  Kazuyoshi Chizuka ,  Hiroki Oshimo

发明人： Toshihiko Yamada ,  Etsunori Fujita ,  Yumi Ogura ,  Kazuyoshi Chizuka ,  Hiroki Oshimo

IPC分类号： A47C3102

CPC分类号： A47C31/006 ,  A47C23/26 ,  A47C23/28 ,  A47C31/023

摘要： A structural unit having a net member incorporated therein capable of preventing local application of undue force to the net member, to thereby increase reliability of the net member. An end section of a net member of a three-dimensional structure is treated so as to be reduced in cushioning characteristics and increased in hardness as compared with a portion of the net member positioned inside the end section. A frame constituting a part of the structural unit is provided with an end holding member so that an insertion port of an insertion gap of the end holding member is arranged in a particular direction or posture, resulting in the end section being readily held in the holding member by merely inserting the end section in the insertion gap. The end section is entirely inserted into the insertion gap, so that application of load to the end section may be carried out in a two-dimensional manner rather than a spot-like manner. This prevents local application of load to the net member, to thereby keep the net member from damage thereto.

摘要翻译： 具有结合在其中的网构件的结构单元能够防止对网构件局部施加过大的力，从而增加网构件的可靠性。 与位于端部内部的网状部件的部分相比，处理三维结构的网状部件的端部，以减轻缓冲特性，增加硬度。 构成结构单元的一部分的框架设置有端部保持构件，使得端部保持构件的插入间隙的插入口沿特定的方向或姿态布置，导致端部容易地保持在保持构件 通过将端部插入到插入间隙中。 端部完全插入到插入间隙中，从而可以以二维方式而不是点样的方式对端部施加负载。 这防止了对网构件的局部施加载荷，从而保持网构件不被损坏。

公开(公告)号：US08567770B2

公开(公告)日：2013-10-29

申请号：US13146739

申请日：2010-02-03

申请人： Etsunori Fujita ,  Yutaka Sakamoto ,  Hiroki Oshimo

发明人： Etsunori Fujita ,  Yutaka Sakamoto ,  Hiroki Oshimo

IPC分类号： A47C7/14 ,  F16M13/00

CPC分类号： B60N2/507 ,  B60N2/50 ,  B60N2/502 ,  B60N2/505 ,  B60N2/52 ,  B60N2/548 ,  F16F6/005

摘要： To expand a body weight adjustment range and achieve thinning. An initial position adjusting member 15 which can adjust initial resilient forces of two torsion bars 31, 41 is provided. Therefore, a body weight adjustment range is expanded as compared with a conventional configuration where a resilient force of only one torsion bar is adjusted. Since a moving magnet unit 52 is provided such that a moving direction of a moving body coincides with an approximately perpendicular direction to a mutual displacement direction of an upper frame 10 relative to a lower frame 20, the thickness (height) of a fixed magnet unit 51 is made thin as compared with a case where the moving magnet unit is provided such that the moving direction of the moving body coincides with approximately the same direction as the mutual displacement direction of the upper frame relative to the lower frame, so that the thickness of the whole seat suspension at a position at which the upper frame 10 has come closest to the lower frame 20 (a lower limit position) can be made thin.

摘要翻译： 扩大体重调节范围，实现变薄。 提供了可以调节两个扭杆31,41的初始弹力的初始位置调整构件15。 因此，与仅调整一个扭力杆的弹力的现有结构相比，体重调整范围扩大。 由于移动磁体单元52被设置为使得移动体的移动方向与上框架10相对于下框架20的相互移动方向大致垂直的方向一致，所以固定磁体单元的厚度（高度） 与移动磁体单元的设置方式相比，移动体的移动方向与上框架相对于下框架的相互移动方向大致相同的方向一致，从而使薄壁51变薄 在上框架10最靠近下框架20的位置（下限位置）处的整个座椅悬架的位置可以变薄。

公开(公告)号：US20100187881A1

公开(公告)日：2010-07-29

申请号：US12601404

申请日：2008-05-20

申请人： Etsunori Fujita ,  Seiji Kawasaki ,  Hiroki Oshimo ,  Shigeyuki Kojima

发明人： Etsunori Fujita ,  Seiji Kawasaki ,  Hiroki Oshimo ,  Shigeyuki Kojima

IPC分类号： A47C3/00 ,  A47C7/02 ,  A47C7/44 ,  A47C7/14 ,  B60N2/02 ,  B60N2/50 ,  B60N2/64 ,  B61D33/00 ,  B64D11/06

CPC分类号： B64D11/0649 ,  B60N2/028 ,  B60N2/22 ,  B60N2/42736 ,  B60N2/42745 ,  B60N2/42763 ,  B60N2/502 ,  B60N2/504 ,  B60N2/507 ,  B60N2/548 ,  B60N2/68 ,  B60N2/7094 ,  B60N2/986 ,  B61D33/0014 ,  B61D33/0035 ,  B64D11/064 ,  B64D11/0647

摘要： Follow-up performance to respiratory movements is made higher than that of the prior art without obstructing movements of the pelvis of a person. A configuration is adopted that a cushioning member arrangement frame for a seat back 34, 140 and a cushioning member arrangement frame for a seat cushion are displaced according to load fluctuation to a cushioning member for a seat back 40, 150 or a cushioning member for a seat cushion 20. That is, such a configuration is adopted that the cushioning member arrangement frame for a seat back 34, 140 or the cushioning member for a seat cushion 20 not only moves according to load fluctuation but also frames themselves supporting them move via tension structure members spread over the frames (a cushioning member for a seat back and a cushioning member for a seat cushion). Accordingly, when a person lays his/her pelvis at his/her sitting position for deep breathing, the cushioning member arrangement frame for a seat back is displaced to push the vicinity of an upper portion of the cushioning member for a seat back, so that the vicinity of a lower portion of the cushioning member for a seat back is pushed forward to enrich support of the sacrum of the person.

摘要翻译： 呼吸运动的跟踪表现高于现有技术，而不妨碍人的骨盆运动。 采用的结构是，用于座椅靠背34,140的缓冲构件布置框架和用于座垫的缓冲构件布置框架根据负载波动位移到用于座椅靠背40,150的缓冲构件或用于座椅靠垫的缓冲构件 也就是说，采用座椅靠背34,140的缓冲构件配置框架或座垫20的缓冲构件不仅根据负载波动而移动，而且还支撑着支撑它们的框架通过张力移动 结构构件分布在框架上（用于座椅靠背的缓冲构件和用于座垫的缓冲构件）。 因此，当一个人将他/她的骨盆放置在他/她的坐姿深呼吸时，用于座椅靠背的缓冲构件布置框架被移动以推动用于座椅靠背的缓冲构件的上部附近，使得 用于座椅靠背的缓冲构件的下部附近被向前推动以丰富人的骶骨的支撑。

公开(公告)号：US06505718B2

公开(公告)日：2003-01-14

申请号：US09899623

申请日：2001-07-05

申请人： Etsunori Fujita ,  Hiroki Oshimo ,  Hiroki Honda

发明人： Etsunori Fujita ,  Hiroki Oshimo ,  Hiroki Honda

IPC分类号： F16F1503

CPC分类号： F16F3/026 ,  F16F6/005 ,  F16F15/03

摘要： A vibration damping apparatus using a magnetic circuit which is easier and less expensive to manufacture than conventional apparatus is provided. The apparatus comprises a moving member 30 placed to move relatively away from and close to magnets 20 and 21 and made of a magnetic material which generates attraction force between the moving member 30 and the magnets 20 and 21, metal springs 40 and 41 as elastic members urging the moving member 30 in a direction in which the moving member 30 approaches the magnets 20 and 21, and rubbers 60 and 61 as cushioning members mounted on predetermined positions to prevent the moving member 30 from coming in contact with the magnets 20 and 21. A negative spring constant is created by using an attracting magnetic circuit formed between the magnets 20 and 21 and the moving member 30, and to this, the elastic force of the metal springs 40 and 41 having a positive spring constant with the same value as the negative spring constant is added, whereby a total spring constant within a predetermined range of displacement can be set to substantially near zero by a very simple configuration.

摘要翻译： 提供一种使用比常规装置更容易制造成本更低的磁路的减振装置。 该装置包括移动构件30，该移动构件30被放置成相对远离并靠近磁体20和21移动并且由在移动构件30和磁体20和21之间产生吸引力的磁性材料制成，作为弹性构件的金属弹簧40和41 在移动构件30接近磁体20和21的方向上推动移动构件30，以及作为安装在预定位置上的缓冲构件的橡胶60和61，以防止移动构件30与磁体20和21接触。 通过使用形成在磁体20和21与移动构件30之间的吸引磁路来产生负的弹簧常数，并且为此，具有与弹簧常数相同的正的弹簧常数的金属弹簧40和41的弹性力与 添加负弹簧常数，由此可以通过非常简单的配置将预定位移范围内的总弹簧常数设置为基本接近零。

公开(公告)号：US6035980A

公开(公告)日：2000-03-14

申请号：US973929

申请日：1997-12-08

申请人： Etsunori Fujita ,  Yoshimi Enoki ,  Hiroshi Nakahira ,  Seiji Kawasaki ,  Hiroki Honda ,  Yumi Ogura

发明人： Etsunori Fujita ,  Yoshimi Enoki ,  Hiroshi Nakahira ,  Seiji Kawasaki ,  Hiroki Honda ,  Yumi Ogura

IPC分类号： F16F6/00 ,  F16F15/03 ,  B60N2/50

CPC分类号： F16F6/005 ,  F16F15/03

摘要： A magnetic spring has at least two permanent magnets (2 and 4) spaced from each other in a kinetic mechanism. At the time of input and at the time of output, the geometric dimensions between the two permanent magnets are changed by the kinetic mechanism or an external force. The change in geometric dimensions is converted into a repulsive force in the kinetic mechanism, thereby (1) making the repulsive force from a balanced position of the two permanent magnets greater at the time of output than at the time of input, or (2) deriving a damping term of the magnetic spring to provide nonlinear damping and spring characteristics.

摘要翻译： PCT No.PCT / JP97 / 01196 Sec。 371 1997年12月8日第 102（e）日期1997年12月8日PCT提交1997年4月8日PCT公布。 公开号WO97 / 38242 日期1997年10月16日磁性弹簧在动力学机构中具有彼此间隔开的至少两个永磁体（2和4）。 在输入时和输出时，通过动力学机构或外力来改变两个永磁体之间的几何尺寸。 几何尺寸的变化在动力学机理中被转化为排斥力，从而（1）使输出时的两个永磁体的平衡位置的排斥力比输入时更大，或者（2） 导出磁性弹簧的阻尼项以提供非线性阻尼和弹簧特性。

公开(公告)号：US06232689B1

公开(公告)日：2001-05-15

申请号：US09050088

申请日：1998-03-30

申请人： Etsunori Fujita ,  Yoshimi Enoki ,  Hiroshi Nakahira ,  Seiji Kawasaki

发明人： Etsunori Fujita ,  Yoshimi Enoki ,  Hiroshi Nakahira ,  Seiji Kawasaki

IPC分类号： H02K706

CPC分类号： F16F15/03 ,  F16F6/005

摘要： An energy converting mechanism includes at least two permanent magnets spaced from each other with the same magnetic poles opposed to each other, and a magnetic spring formed by the at least two permanent magnets. The magnetic spring provides negative damping characteristics or changes static magnetic energy by changing an opposing area of the at least two permanent magnets so that an output is extracted from one of the at least two permanent magnets by applying an input to the other.

摘要翻译： 能量转换机构包括至少两个彼此间隔相同磁极的永磁体和由至少两个永久磁铁形成的磁弹簧。 磁性弹簧通过改变至少两个永磁体的相对面积来提供负阻尼特性或改变静态磁能，使得通过向另一个施加输入而从至少两个永磁体中的一个提取输出。