公开(公告)号：US3807535A

公开(公告)日：1974-04-30

申请号：US28206172

申请日：1972-08-21

Applicant: TOKYO BUHIN KOGYO CO LTD

Inventor： SHIMADA K

IPC: F16D65/22 ,  F16D65/56

CPC classification number: F16D65/22 ,  F16D65/561

Abstract: The brake actuating device according to the present invention has a worm gear engaged with a worm wheel mounted on a screw rod for actuating the brake shoes, a ratchet wheel rotatable together with said worm gear, a ratchet arm engaged with wheel and actuated by the spring to rotate the ratchet wheel, so that when the brake shoes are worn, the increased clearance between the shoe and a brake drum can be automatically adjusted by the contacting action of the ratchet arm with the stationary portion.

公开(公告)号：US3765515A

公开(公告)日：1973-10-16

申请号：US3765515D

申请日：1972-08-04

Applicant: TOKYO BUHIN KOGYO CO LTD

Inventor： SHIMADA K

IPC: F16D65/14 ,  F16D65/56

CPC classification number: F16D65/562 ,  F16D2125/40

Abstract: A brake device having a brake drum and a pair of brake shoes, a screw rod having screw threads of opposite direction at its opposite ends, a pair of nuts axially slidably but non-rotatably supported on a stationary housing, said nuts engaging with the screw threads on the screw rod and adapted to move the brake shoes into frictional contact with the brake drum in response to the rotation of the screw rod, a brake clearance adjusting means provided between one of the nuts and the adjacent brake shoe.

Abstract translation: 一种具有制动鼓和一对制动蹄的制动装置，在其相对端具有相反方向的螺纹的螺杆，一对轴向可滑动但不可旋转地支撑在固定壳体上的螺母，所述螺母与螺钉啮合 螺杆在螺杆上并且响应于螺杆的旋转而适于使制动蹄与制动鼓摩擦接触，制动间隙调节装置设置在其中一个螺母和相邻的制动蹄之间。