公开(公告)号：US4643043A

公开(公告)日：1987-02-17

申请号：US578569

申请日：1984-02-09

Applicant: Yohichi Furuta ,  Takeo Yamasaki ,  Tomio Tachino ,  Masayoshi Tanikawa

Inventor： Yohichi Furuta ,  Takeo Yamasaki ,  Tomio Tachino ,  Masayoshi Tanikawa

IPC: B60T7/10 ,  G05G1/00

CPC classification number: B60T7/101 ,  Y10T74/20468 ,  Y10T74/20648 ,  Y10T74/20714 ,  Y10T74/20732 ,  Y10T74/20762

Abstract: A vehicle hand brake lever assembly for actuating the vehicle parking brake. The lever assembly includes an axially slidable plunger mounted on a support and having one end connected with a brake actuating member. The plunger and the support have a ratchet mechanism for holding the plunger at the brake applying position. The ratchet mechanism can be released by rotating the plunger about its longitudinal axis. A handle assembly is provided at the other end of the plunger and comprises a handle having a handle shaft. A sleeve fitted to a cylindrical guide member is secured to one of the sleeve and the handle shaft, and a lock member to the other. The lock member is axially slidably received in the guide member and provided with a cam profile for cooperation with a cam profile provided on the sleeve. The lock member is spring biased toward the sleeve so that the cam profiles are normally engaged with each other to thereby maintain the handle shaft at a predetermined relationship with respect to the plunger. The lock member further has axial projections and the guide member has an end wall formed with cutouts for receiving the axial projections on the lock member when the handle shaft is pulled axially against the biasing force to thereby connect the handle shaft with the plunger so that the plunger can be rotated about its longitudinal axis to release the ratchet mechanism on the plunger.

Abstract translation: 一种用于致动车辆驻车制动器的车辆手制动杆组件。 杠杆组件包括安装在支撑件上并且具有与制动器致动构件连接的一端的可轴向滑动的柱塞。 柱塞和支撑件具有用于将柱塞保持在制动施加位置的棘轮机构。 可以通过围绕其纵向轴线旋转柱塞来释放棘轮机构。 手柄组件设置在柱塞的另一端，并且包括具有手柄轴的手柄。 装配到圆柱形引导构件的套筒固定到套筒和手柄轴中的一个上，并将锁定构件固定到另一个上。 锁定构件轴向可滑动地容纳在引导构件中并且设置有凸轮轮廓，用于与设置在套筒上的凸轮轮廓配合。 锁定构件朝向套筒弹簧偏压，使得凸轮轮廓通常彼此接合，从而将把手轴相对于柱塞保持预定的关系。 锁定构件还具有轴向突出部，并且引导构件具有端部壁，该端壁形成有切口，当手柄轴被抵抗偏压力而被轴向拉动时，该切口用于接收锁定构件上的轴向突起，从而将手柄轴与柱塞连接， 柱塞可以围绕其纵向轴线旋转以释放柱塞上的棘轮机构。