公开(公告)号：US20020037782A1

公开(公告)日：2002-03-28

申请号：US09912602

申请日：2001-07-26

Applicant: NHK SPRING CO., LTD

Inventor： Tanehira Amano ,  Takao Kobayashi

IPC: F16H007/08 ,  F16H007/22 ,  F16H007/12

CPC classification number: F16H7/08 ,  F16H2007/081

Abstract: To provide a tensioner in which a bearing of the drive shaft of the conventional art is not necessary and also that enables the initial load of the torsion spring to be retained in an intact condition when the tensioner is disassembled for maintenance purposes or the like. The tensioner is designed such that it includes (1) two shaft members that compose a set and that are engaged by screw portions, and (2) a spring that is inserted in the driving unit by fastening onto the aforementioned two shaft members the hooking portions that are located at each end of said spring, and such that said spring is inserted in the set of the shaft members under an appropriate windup condition, and that one shaft member moves forward from the loaded strength by the aforementioned spring, (3) the aforementioned driving unit, (4) a case into which said driving unit is inserted, and (5) a system that prevents the aforementioned driving unit from coming off the case.

Abstract translation: 为了提供一种张紧器，其中不需要常规技术的驱动轴的轴承，并且还可以在张紧器被拆卸用于维护目的等时将扭簧的初始载荷保持在完整状态。 张紧器被设计成使得它包括（1）组成一组并且由螺纹部分接合的两个轴构件，以及（2）通过紧固到上述两个轴构件上而被插入到驱动单元中的弹簧， 位于所述弹簧的每个端部，并且使得所述弹簧在适当的卷绕状态下插入到所述轴构件的组中，并且一个轴构件通过上述弹簧从加载的强度向前移动，（3） 上述驱动单元，（4）插入所述驱动单元的壳体，以及（5）防止上述驱动单元脱离壳体的系统。

公开(公告)号：US20010041635A1

公开(公告)日：2001-11-15

申请号：US09867188

申请日：2001-05-29

Applicant: NHK Spring Co., Ltd.

Inventor： Kazuo Ishii ,  Shigemasa Takahashi ,  Tanehira Amano ,  Takao Kobayashi ,  Kenjiro Kawanabe

IPC: F16H007/08 ,  F16H007/12 ,  F16H007/22

CPC classification number: F16H7/0831 ,  F16H7/08 ,  F16H2007/081 ,  F16H2007/0857

Abstract: A tensioner comprises shaft members that mate with each other by means of thread portions. A first shaft member is rotatable with respect to a casing and is restrained from moving in its axial direction. A second shaft member, which is restrained from rotating with respect to the casing, is movable in its axial direction. A torsion spring applies torque in a first direction to the first shaft member. A torque switching member, which can switch frictional torque in association with the rotation of the first shaft member, is provided between the first shaft member and the casing.

Abstract translation: 张紧器包括通过螺纹部分彼此配合的轴构件。 第一轴构件相对于壳体可旋转并且被限制在其轴向方向上移动。 被限制相对于壳体旋转的第二轴构件可在其轴向方向上移动。 扭转弹簧沿第一方向向第一轴构件施加扭矩。 在第一轴构件和壳体之间设置有能够切换与第一轴构件的旋转相关的摩擦力矩的转矩切换构件。