公开(公告)号：US20030227213A1

公开(公告)日：2003-12-11

申请号：US10331008

申请日：2002-12-26

Applicant: NHK Spring Co., Ltd.

Inventor： Hiroyoshi Yamaguchi ,  Hajime Shono

IPC: A47C031/00

CPC classification number: B60N2/4279 ,  B60N2/4221 ,  B60N2/42718 ,  B60N2/42763 ,  B60N2/42781 ,  B60R22/1951 ,  B60R22/1955 ,  B60R22/26 ,  B60R2022/1806

Abstract: Provided is a compact power actuator which is simple in structure, reliable in operation, and easy to install. The power actuator comprises a piston assembly which is received in a fixed cylinder for either directly or indirectly engaging a driven member, and a propellant for rapidly increasing the inner pressure of the cylinder to push the piston assembly outward so that the driven member may be instantaneously driven. A spring is interposed between the piston assembly and the propellant to urge the piston assembly in the projecting direction. The front end of the propellant fits into the central opening so that the available space may be filly utilized. Therefore, the size of the power actuator can be reduced, and the required amount of the pyrotechnic material for the propellant can be reduced due to the reduced initial volume of the chamber for the expansion of the generated gas.

Abstract translation: 提供一种结构简单，操作可靠，易于安装的紧凑型动力执行机构。 动力致动器包括活塞组件，其被容纳在用于直接或间接接合从动构件的固定气缸中，以及用于快速增加气缸的内部压力以推动活塞组件向外的推进剂，使得从动构件可以瞬时 驱动。 在活塞组件和推进剂之间插入弹簧以沿着突出方向推动活塞组件。 推进剂的前端装入中央开口，以便可利用空间。 因此，可以减小功率致动器的尺寸，并且由于用于膨胀所产生的气体的室的初始容积减小，可以减少用于推进剂的所需量的烟火材料。

公开(公告)号：US20040211313A1

公开(公告)日：2004-10-28

申请号：US10830343

申请日：2004-04-22

Applicant: NHK SPRING CO., LTD.

Inventor： Hiroyoshi Yamaguchi

IPC: F15B015/26

CPC classification number: F15B15/261 ,  B60N2/42763 ,  B60R21/38 ,  F15B15/19

Abstract: A piston rod is formed in a diameter smaller than an inner diameter of a hollow cylinder. The piston rod is inserted in the cylinder so as to be relatively movable in an axial direction of the cylinder. A locking mechanism comprises a first surface provided on the inner surface of the cylinder, a plurality of second surfaces arranged in an axial direction of the piston rod and parallel to one another, and a locking member. The first surface is so inclined that the inside diameter of the cylinder gradually increases toward one end of the cylinder. Each second surface is so inclined that the diameter of the piston rod gradually increases to the one end of the piston rod. The locking member is held between the first surface and any one of the second surfaces to lock relative movement of the piston rod with respect to the cylinder.

Abstract translation: 活塞杆形成为比中空圆筒的内径小的直径。 活塞杆插入缸体中，以能够在缸体的轴向上相对移动。 锁定机构包括设置在所述气缸的内表面上的第一表面，沿所述活塞杆的轴向方向布置并且彼此平行的多个第二表面和锁定构件。 第一表面倾斜使得气缸的内径朝向气缸的一端逐渐增大。 每个第二表面倾斜使得活塞杆的直径逐渐增加到活塞杆的一端。 锁定构件保持在第一表面和任何一个第二表面之间，以锁定活塞杆相对于气缸的相对运动。

公开(公告)号：US20040169363A1

公开(公告)日：2004-09-02

申请号：US10781729

申请日：2004-02-20

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  NHK SPRING CO., LTD.

Inventor： Osamu Fukawatase ,  Takeaki Kato ,  Hiroyoshi Yamaguchi ,  Tadanori Hisamoto ,  Shinichi Horibata

IPC: B60D001/28

CPC classification number: B60R21/0132 ,  B60R21/045 ,  B60R2021/0004 ,  B60R2021/0051 ,  B60R2021/0053 ,  B60R2021/01252

Abstract: An actuator of an active knee bolster is provided with a drive force generation device and a one way lock mechanism that is disposed in a vicinity of an operation end of the drive force generation device. The one way lock mechanism is configured such that, if attempted movement of a piston member in an inward insertion direction occurs, respective engagement portions are moved to a taper portion by urging force of a spring, whereby the engagement portions are abutted against an external periphery surface of the piston member such that the piston member and the engagement portions are fixed. Accordingly, as a result of the one way lock mechanism, a main body of the active knee bolster that has been moved to a restraining position cannot return in a vehicle forward direction, and thus it is possible to generate a substantial lower limb restraining force that restrains a lower limb of an occupant.

Abstract translation: 主动膝垫的致动器设置有驱动力产生装置和设置在驱动力产生装置的操作端附近的单向锁定机构。 单向锁定机构被配置为使得如果试图沿向内插入方向移动活塞部件，则通过弹簧的推力将各接合部分移动到锥形部分，由此接合部分抵靠外周 活塞构件的表面，使得活塞构件和接合部分固定。 因此，作为单向锁定机构的结果，已经移动到限制位置的主动膝垫的主体不能在车辆前方返回，因此可以产生实质的下肢约束力， 限制乘客的下肢。

公开(公告)号：US20040012234A1

公开(公告)日：2004-01-22

申请号：US10620891

申请日：2003-07-16

Applicant: NHK SPRING CO., LTD.

Inventor： Hiroyoshi Yamaguchi ,  Yuji Niikura ,  Takeshi Itoh

IPC: B60N002/48

CPC classification number: B60N2/4279 ,  B60N2/0276 ,  B60N2/838 ,  B60N2/888

Abstract: A vehicular seat includes at an upper part of a seat back an upper frame which extends in a widthwise direction of the seat back. An actuator unit which generates a drive force is attached along the upper frame. A headrest support frame is provided to the upper frame so as to be capable of moving in a front-and-back direction. When an acceleration equal to or above a predetermined value is applied to a vehicle by a collision from behind, a drive force generated by an operation of the actuator unit is transmitted to the headrest support frame. By moving the headrest support frame in a direction along which it approaches an occupant by using this drive force, a headrest supported to the headrest support frame moves frontward.

Abstract translation: 车座位于座椅靠背的上部，在座椅靠背的宽度方向上延伸的上框架。 产生驱动力的致动器单元沿着上框架被安装。 头架支撑框架设置在上框架上，以便能够沿前后方向移动。 当等于或高于预定值的加速度通过后方的碰撞而被施加到车辆时，通过致动器单元的操作产生的驱动力被传递到头枕支撑框架。 通过使用该驱动力使头枕支撑框架靠近乘员的方向移动，头枕支撑框架的头枕向前移动。

公开(公告)号：US20020053793A1

公开(公告)日：2002-05-09

申请号：US09976334

申请日：2001-10-12

Applicant: NHK SPRING CO., LTD.

Inventor： Hiroyoshi Yamaguchi ,  Eiji Shimizu

IPC: B60R021/02

CPC classification number: B60N2/4221 ,  B60N2/42763 ,  B60N2/42781

Abstract: In a vehicle occupant restraint system provided in association with a vehicle seat for preventing a vehicle occupant from slipping forward under a seat belt in an impact situation such as a vehicle crash, a pair of casings are provided on either side of the seat frame, and pivotally support a pair of arms across which a cross member extends A power unit pivotally incorporated in at east one of the casings raises the arms and cross member in an impact situation. The casing is formed by a main member having a vertical section and a pair of Ranges extending from upper and lower ends of the vertical section, and a lid member attached to the free ends of the flanges. The hollow structure of the casing provides a high level of mechanical strength, and the two piece structure of the casing allows the assembly work to be performed in a simple manner because the components can be installed from sideways one after another in a relatively simple manner.

Abstract translation: 在与车辆座椅相关联地设置的用于防止车辆乘员在诸如车辆碰撞的碰撞情况下在安全带下方向前滑动的车辆乘员约束系统中，在座椅框架的两侧设置一对外壳， 枢转地支撑横跨构件延伸的一对臂。枢转地结合在壳体的东部的动力单元在冲击情况下升高臂和横梁。 壳体由具有垂直部分的主要部件和从垂直部分的上端和下端延伸的一对范围形成，以及附接到凸缘的自由端的盖部件。 壳体的中空结构提供了高水平的机械强度，并且壳体的两件式结构允许以简单的方式执行组装工作，因为部件可以相对简单的方式从侧向安装。

公开(公告)号：US20020053792A1

公开(公告)日：2002-05-09

申请号：US09976324

申请日：2001-10-12

Applicant: NHK Spring Co., Ltd.

Inventor： Hiroyoshi Yamaguchi ,  Eiji Shimizu

IPC: B60R021/02

CPC classification number: B60N2/42763 ,  B60N2/4221 ,  B60N2/42709 ,  B60N2/4279

Abstract: In a vehicle occupant restraint system provided in association with a vehicle seat for preventing a vehicle occupant from slipping forward under a seat belt in an impact situation such as a vehicle crash, a pair of support members are provided on either side of the seat frame, and pivotally support a pair of arms across which a cross member extends. The cross member comprises an energy absorbing structure adapted to undergo a controlled deformation under a load occurring as the front part of the seat bottom is raised. The energy absorbing structure may consist of a relatively deformable member wrapped around the cross member or a feature for controlling a mode of deformation of the cross member. When the cross member consists of a pipe member, the energy absorbing structure may comprise a relatively deformable member filled inside the pipe member or perforations formed in the pipe member.

Abstract translation: 在与车辆座椅相关联地设置的用于防止车辆乘员在诸如车辆碰撞的碰撞情况下在安全带下方向前滑动的车辆乘员约束系统中，一对支撑构件设置在座椅框架的两侧， 并且枢转地支撑横跨构件延伸的一对臂。 横梁构件包括能量吸收结构，该能量吸收结构适于在座椅底部的前部升起时发生的负载下经受受控变形。 能量吸收结构可以包括围绕横向构件缠绕的相对可变形构件或用于控制横向构件的变形模式的特征。 当横向构件由管构件构成时，能量吸收结构可以包括填充在管构件内部的相对可变形构件或形成在管构件中的穿孔。