公开(公告)号：US3782251A

公开(公告)日：1974-01-01

申请号：US3782251D

申请日：1972-02-14

Applicant: DBA SA

Inventor： MARCHAND C

IPC: B60T13/22 ,  B60T17/08 ,  F01B7/00

CPC classification number: B60T17/083

Abstract: Spring brake actuator having a manual release mechanism. In this actuator, the push-rod is slidably received through an opening in the piston, the piston being connected to the push-rod by a bayonet type locking means in which members can be engaged with one another by rotating the push-rod in one direction. A telescopic connection arranged rearwardly of the piston includes a control member manually operable from the exterior of the actuator housing for rotating the push-rod in the other direction to thereby dissociate the push-rod from the piston and cancel the braking action of the actuator. The push-rod is rotationally urged in the locking direction by a spring for allowing the actuator to be automatically reset when its supply in fluid pressure is restored.

Abstract translation: 弹簧制动器执行器具有手动释放机构。 在该致动器中，推杆通过活塞中的开口可滑动地接收，活塞通过卡口式锁定装置连接到推杆，其中构件可以通过将推杆旋转在一个中而彼此接合 方向。 布置在活塞后方的伸缩连接包括可从致动器壳体的外部手动操作的控制构件，用于沿另一方向旋转推杆，从而使推杆与活塞分离并消除致动器的制动作用。 推杆通过弹簧在锁定方向被旋转地推动，以允许致动器在其在液压供应恢复时自动复位。