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    Seat structure
    1.
    发明授权
    Seat structure 有权
    座椅结构

    公开(公告)号：US06817674B2

    公开(公告)日：2004-11-16

    申请号：US10309605

    申请日：2002-12-04

    申请人： Etsunori Fujita ,  Kazuyoshi Chizuka ,  Seiji Kawasaki ,  Yumi Ogura ,  Naoki Ochiai ,  Yasuhide Takata ,  Shigeyuki Kojima ,  Miho Kikusui

    发明人： Etsunori Fujita ,  Kazuyoshi Chizuka ,  Seiji Kawasaki ,  Yumi Ogura ,  Naoki Ochiai ,  Yasuhide Takata ,  Shigeyuki Kojima ,  Miho Kikusui

    IPC分类号： A47C702

    CPC分类号： B60N2/42709 ,  B60N2/643 ,  B60N2/646 ,  B60N2/686 ,  B60N2/70

    摘要： The object of the present invention is to suppress rebound of a human body by making a reaction force small due to a large damping ratio. A bulging portion 11 is formed at a seat cushioning member 14 which is a tension structure. This structure has a structure of changing the damping characteristics functioned by the change in strain energy and tension by deformation created by a plane wave of the tension structure in accordance with the magnitude of the excitation force of an inputted vibration. Therefore, since the damping characteristics function with a small damping ratio to an input of a small excitation force, it can relieve the vibration with a phase difference due to the spring property of the seat cushioning member 14 and/or a back cushioning member 24, and to an input of a large excitation force, by increase of the strain energy and decrease of the tension, the damping characteristics function with a large damping ratio and a long operating time, so that rebound of a human body upward can be suppressed.

    摘要翻译： 本发明的目的是通过使阻尼比大的反作用力较小来抑制人体的反弹。 凸起部11形成在作为张力结构的座椅缓冲构件14上。 该结构具有通过根据输入振动的激励力的大小由张力结构的平面波产生的变形而改变由应变能和张力的变化起作用的阻尼特性的结构。 因此，由于阻尼特性对于小的励磁力的输入具有小的阻尼比功能，所以能够缓和由于座椅缓冲部件14和/或后缓冲部件24的弹簧特性引起的相位差的振动， 并且通过增加应变能量和张力减小，输入大的励磁力，阻尼特性起着较大的阻尼比和较长的作业时间的作用，能够抑制人体向上的回弹。

    Seat
    2.
    发明申请
    Seat 有权
    座位

    公开(公告)号：US20070013217A1

    公开(公告)日：2007-01-18

    申请号：US11485729

    申请日：2006-07-13

    申请人： Etsunori Fujita ,  Kazuyoshi Chizuka ,  Seiji Kawasaki ,  Yumi Ogura ,  Yasuhide Takata

    发明人： Etsunori Fujita ,  Kazuyoshi Chizuka ,  Seiji Kawasaki ,  Yumi Ogura ,  Yasuhide Takata

    IPC分类号： A47C7/46

    CPC分类号： B60N2/42709 ,  B60N2/42736 ,  B60N2/42754 ,  B60N2/72

    摘要： A seat cushion of a vehicle seat has a base seat whose front end is anchored to a front frame of a frame for a sitting portion, and whose rear end is connected to a rear frame of the frame for a sitting portion via helical tension springs. A supporter, supported via helical tension springs at a pair of left and right side frames of the frame for a sitting portion, is disposed at a lower side of the base seat so as to support a femoral region of a seated person. The supporter and the helical tension springs structure an auxiliary vibration system whose mass element is a femoral region of a seated person. The auxiliary vibration system is made to function as a dynamic vibration absorber with respect to up-down vibrations of a main vibration system whose mass element is an upper body of a seated person.

    摘要翻译： 车座的座垫具有基座，其前端被锚定到用于坐姿的框架的前框架，并且其后端通过螺旋拉伸弹簧连接到用于座位的框架的后框架。 在座椅的框架的一对左右侧框架处通过螺旋拉伸弹簧支撑的支撑件设置在基座的下侧，以支撑就座者的股骨区域。 支撑器和螺旋拉伸弹簧构成辅助振动系统，其质量元素是坐在人的股骨区域。 辅助振动系统相对于主体振动系统的上下振动起到动力吸振器的作用，其主体振动系统的质量元件是就座人的上身。

    Seat structure
    4.
    发明授权
    Seat structure 有权
    座椅结构

    公开(公告)号：US07044551B2

    公开(公告)日：2006-05-16

    申请号：US10767090

    申请日：2004-01-29

    申请人： Etsunori Fujita ,  Kazuyoshi Chizuka ,  Seiji Kawasaki ,  Yasuhide Takata ,  Yumi Ogura ,  Eiichi Yasuda ,  Shun'ichi Doi ,  Kazukata Takei

    发明人： Etsunori Fujita ,  Kazuyoshi Chizuka ,  Seiji Kawasaki ,  Yasuhide Takata ,  Yumi Ogura ,  Eiichi Yasuda ,  Shun'ichi Doi ,  Kazukata Takei

    IPC分类号： A47C3/025 ,  A47C7/02

    CPC分类号： B60N2/66 ,  B60N2/7011 ,  B60N2/7064

    摘要： A seat structure includes a torsion bar 40 disposed along the width direction in the vicinity of the bottom end of a back frame 20, a pelvis supporting plate 50 is connected to the torsion bar 40, and a flat-type supporting member 60 for the seat back is engaged with the vicinity of the bottom end of the pelvis supporting plate 50 and strained. Slack of the flat-type supporting member 60 can be eliminated by the pelvis supporting plate 50 to enhance the appearance. Further, a vibration inputted from the seat back side, and vibrates as if patting on the back of the human body can be absorbed by an elastic force of the torsion bar 40.

    摘要翻译： 座椅结构包括沿着后框架20的底端附近的宽度方向设置的扭杆40，骨架支撑板50连接到扭杆40，并且用于座椅的平坦型支撑构件60 背部与骨盆支撑板50的底端附近接合并变形。 可以通过骨盆支撑板50来消除扁平支撑构件60的松弛，以增强外观。 此外，从座椅靠背侧输入的振动，像在人体背部拍拍一样振动，能够被扭杆40的弹力吸收。

    Seat
    6.
    发明授权
    Seat 有权
    座位

    公开(公告)号：US07845733B2

    公开(公告)日：2010-12-07

    申请号：US11485729

    申请日：2006-07-13

    申请人： Etsunori Fujita ,  Kazuyoshi Chizuka ,  Seiji Kawasaki ,  Yumi Ogura ,  Yasuhide Takata

    发明人： Etsunori Fujita ,  Kazuyoshi Chizuka ,  Seiji Kawasaki ,  Yumi Ogura ,  Yasuhide Takata

    IPC分类号： A47C7/02

    CPC分类号： B60N2/42709 ,  B60N2/42736 ,  B60N2/42754 ,  B60N2/72

    摘要： A seat cushion of a vehicle seat has a base seat whose front end is anchored to a front frame of a frame for a sitting portion, and whose rear end is connected to a rear frame of the frame for a sitting portion via helical tension springs. A supporter, supported via helical tension springs at a pair of left and right side frames of the frame for a sitting portion, is disposed at a lower side of the base seat so as to support a femoral region of a seated person. The supporter and the helical tension springs structure an auxiliary vibration system whose mass element is a femoral region of a seated person. The auxiliary vibration system is made to function as a dynamic vibration absorber with respect to up-down vibrations of a main vibration system whose mass element is an upper body of a seated person.

    摘要翻译： 车座的座垫具有基座，其前端被锚定到用于坐姿的框架的前框架，并且其后端通过螺旋拉伸弹簧连接到用于座位的框架的后框架。 在座椅的框架的一对左右侧框架上通过螺旋拉伸弹簧支撑的支撑件设置在基座的下侧，以支撑就座者的股骨区域。 支撑器和螺旋拉伸弹簧构成辅助振动系统，其质量元素是坐在人的股骨区域。 辅助振动系统相对于主体振动系统的上下振动起到动力吸振器的作用，其主体振动系统的质量元件是就座人的上身。

    Seat structure
    7.
    发明授权
    Seat structure 有权
    座椅结构

    公开(公告)号：US06921132B2

    公开(公告)日：2005-07-26

    申请号：US10839052

    申请日：2004-05-05

    申请人： Etsunori Fujita ,  Yutaka Sakamoto ,  Kazuyoshi Chizuka ,  Seiji Kawasaki ,  Yasuhide Takata ,  Yumi Ogura ,  Shigehiko Kaneko

    发明人： Etsunori Fujita ,  Yutaka Sakamoto ,  Kazuyoshi Chizuka ,  Seiji Kawasaki ,  Yasuhide Takata ,  Yumi Ogura ,  Shigehiko Kaneko

    IPC分类号： A47C7/40 ,  B60N2/427 ,  B60N2/90 ,  B61D33/00 ,  B60N2/42

    CPC分类号： B61D33/0014 ,  B60N2/42709 ,  B60N2/70 ,  B60N2/7011

    摘要： In order to improve vibration absorbency and impact absorbency, the seat structure includes a swing member provided in a manner to be able to swing at least back and forth on a rear frame member positioned around the rear of a seat cushion, a pelvis supporting member connected to the swing member at the vicinity of the lower portion of the pelvis supporting member and disposed behind the pelvis of a seated person, and coil springs as an elastic member to support the pelvis supporting member biasing in the direction pushing forwards in a normal seating state. Accordingly, vibration inputted from the seat back side and as if patting on the back of the human body can be absorbed by the pelvis supporting member supported elastically. Besides, since the pelvis supporting member is connected to the rear frame member via the swing member, since pivoting movement in the back-and-forth direction of the pelvis supporting member is performed with a connecting portion of the swing member and the rear frame member as the center, and the radius of gyration is large, the vicinity of the lower portion of the pelvis supporting member never presses the pelvis.

    摘要翻译： 为了提高振动吸收性和冲击吸收性，座椅结构包括摆动构件，其以能够至少在位于座垫的后部的后框架构件上来回摆动的方式设置，骨架支撑构件连接 到骨盆支撑构件的下部附近的摆动构件，并且设置在就座人的骨盆后面，螺旋弹簧作为弹性构件，以支撑骨盆支撑构件在正常就座状态下向前推动的方向 。 因此，从座椅靠背侧输入的振动和仿佛拍摄在人体背部的振动可以被弹性支撑的骨盆支撑构件吸收。 此外，由于骨盆支撑构件经由摆动构件连接到后框架构件，因此通过摆动构件和后框架构件的连接部分进行骨盆支撑构件的前后方向的枢转运动 作为中心，并且回转半径大，骨盆支撑构件的下部附近从不压迫骨盆。

    Seat having a three-dimensional net
    9.
    发明授权
    Seat having a three-dimensional net 有权
    座位有三维网

    公开(公告)号：US06302487B1

    公开(公告)日：2001-10-16

    申请号：US09665074

    申请日：2000-09-19

    申请人： Hitoshi Fujita ,  Etsunori Fujita ,  Yumi Ogura ,  Kazuyoshi Chizuka ,  Masaki Nishino ,  Akihito Asano ,  Seiji Kawasaki

    发明人： Hitoshi Fujita ,  Etsunori Fujita ,  Yumi Ogura ,  Kazuyoshi Chizuka ,  Masaki Nishino ,  Akihito Asano ,  Seiji Kawasaki

    IPC分类号： A47C702

    CPC分类号： B60N2/70 ,  B60N2/5825

    摘要： A seat includes a seat cushion frame, a seat back frame mounted to the seat cushion frame, and at least one three-dimensional net having upper and lower mesh layers and a pile layer made up of a large number of piles for connecting the upper and lower mesh layers. The three-dimensional net is stretched over substantially the entire region of the seat cushion frame and the seat back frame, thereby forming a seat cushion and a seat back. The three-dimensional net has a fixed end at a front end portion of the seat cushion and another fixed end at an upper end portion of the seat back. The seat also includes a first tension member attached to the three-dimensional net at a location adjacent to a central portion thereof for imparting tension thereto, and a second tension member attached to another portion of the three-dimensional net for fastening it to at least one of the seat cushion frame and the seat back frame.

    摘要翻译： 座椅包括座垫框架，安装在座垫框架上的座椅靠背框架，以及至少一个具有上下网格层的三维网和由多个桩组成的绒头层，用于连接鞋面和 较低的网格层。 三维网在基本上在座垫框架和座椅靠背框架的整个区域上被拉伸，从而形成座垫和座椅靠背。 三维网在座垫的前端部具有固定端，在座椅靠背的上端部具有固定端。 所述座椅还包括第一张力构件，其在与其中心部分相邻的位置处附接到所述三维网，用于向其施加张力;以及第二张力构件，其附接到所述三维网的另一部分，用于将其紧固至少 座垫框架和座椅靠背框架之一。

    Seat
    10.
    发明申请
    Seat 有权
    座位

    公开(公告)号：US20060055225A1

    公开(公告)日：2006-03-16

    申请号：US10526432

    申请日：2003-09-03

    申请人： Eiichi Yasuda ,  Shun'ichi Doi ,  Kiyokazu Sunami ,  Etsunori Fujita ,  Yumi Ogura ,  Seiji Kawasaki ,  Kazuyoshi Chizuka

    发明人： Eiichi Yasuda ,  Shun'ichi Doi ,  Kiyokazu Sunami ,  Etsunori Fujita ,  Yumi Ogura ,  Seiji Kawasaki ,  Kazuyoshi Chizuka

    IPC分类号： A47C7/02

    CPC分类号： B60N2/7058 ,  B60N2/58 ,  B60N2/7011 ,  B60N2/7041 ,  B60N2/7064 ,  B60N2/7094

    摘要： At a vehicle seat 10, a cushion material 18 is provided at a frame 14 for a sitting portion of a seat frame 12, such that a seat cushion 20 is formed. An upper cushion member (three-dimensional solid knit fabric) 86, which is a surface layer portion of the cushion material 18, is stretched at the frame 14 for the sitting portion, and is layered on a cloth spring material 18 which is a lower layer portion of the cushion material 18. When the cloth spring material 68 is pressed and flexes downward due to pushing-against force which is based on body weight of a seated person at a time of sitting on the seat cushion 20, at regions of the cloth spring material 68 which are pushed by ischial tuberosities of the seated person, tensile forces of extension coil springs 80, which are forces in the pushing direction, act, and directions of tension of the cushion material 18 are in three dimensions.

    摘要翻译： 在车辆座椅10处，在座椅框架12的座位的框架14处设置有缓冲材料18，从而形成座垫20。 作为衬垫材料18的表层部的上部缓冲构件（三维实心针织物）86在用于坐着部的框架14处被拉伸，并且层叠在作为下部的布弹簧材料18上 衬垫材料18的层部分。 当布料弹簧材料68被按压并且由于在坐在座垫20上时基于坐着人的体重的推压而在布弹簧材料68的被按下的区域处向下弯曲 座位的坐骨结节，作为推动方向的力的延伸螺旋弹簧80的张力作用，缓冲材料18的张力方向为三维。