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    • 4. 发明授权
    • Brake system for automatic transmission
    • 自动变速器制动系统
    • US4930373A
    • 1990-06-05
    • US258770
    • 1988-10-17
    • Yasunori NakawakiFumihiro UshijimaAkio NumazawaToshiyuki Asada
    • Yasunori NakawakiFumihiro UshijimaAkio NumazawaToshiyuki Asada
    • F16H61/10F16H63/30
    • F16H63/3003F16H61/10
    • Herein disclosed is a brake system for use with an automatic transmission for braking a rotatable member such as a brake drum, which is accommodated in a casing and connected to the sun gear or the like of a planetary gear mechanism, by bringing a brake band having two ends into contact with the outer circumference with the rotatable member. The brake system comprises: a cylinder tube so held in a predetermined position in the casing as to move forward and backward in the tangential direction of the rotatable member; a piston fitted in the cylinder tube; a piston rod united with the piston and projecting from the cylinder tube such that it is connected to one end of the brake band; an anchor rod so held in a predetermined position in the casing as to move forward and backward in the tangential direction of the rotatable member and conneced to the other end of the brake band; a connecting member for connecting the cylinder tube and the anchor rod so tha they may move together forward and backward; and a valve mechanism disposed in the cylinder tube and adapted to be opened, when the cylinder tube is moved by a force received in a predetermined direction from the brake band through the piston rod to either apply a fluid pressure in a direction to reduce the fastening force by the brake band or release the fluid pressure.
    • 这里公开了一种与自动变速器一起使用的制动系统,该制动系统用于制动容纳在壳体中并与行星齿轮机构的太阳齿轮等连接的诸如制动鼓的可旋转构件,通过使具有 两端与可旋转构件的外周接触。 制动系统包括:缸体,其被保持在壳体中的预定位置,以沿着可旋转构件的切线方向前后移动; 安装在缸筒中的活塞; 活塞杆与活塞结合并从气缸管突出,使得其连接到制动带的一端; 锚固杆被保持在壳体中的预定位置,以沿着可旋转构件的切线方向前后移动并连接到制动带的另一端; 用于连接缸筒和锚杆的连接构件,使得它们可以一起向前和向后移动; 以及阀机构,其设置在所述气缸筒中并且适于打开,当所述气缸管通过从所述制动带通过所述活塞杆沿预定方向接收的力而移动时,以沿着减小所述紧固的方向施加流体压力 通过制动带的力或释放流体压力。