公开(公告)号：US3576152A

公开(公告)日：1971-04-27

申请号：US3576152D

申请日：1969-05-08

Applicant: DBA SA

Inventor： CHEVREUX GERARD

IPC: B60T17/08 ,  F16D65/14 ,  F01B7/10

CPC classification number: F16D65/28 ,  B60T17/083 ,  B60T17/086 ,  F16D2121/02 ,  F16D2121/12 ,  F16D2123/00

Abstract: A brake operating mechanism includes a housing defining a chamber therewithin and a first tubular member slidably mounted in the chamber and extending therefrom. The outer surface of a second tubular member is threadedly engaged with the first tubular member, and the inner diameter of the second tubular member has a polygonal cross section, which slidably receives a shaft which has a corresponding polygonal cross section. A brake actuating rod is urged into engagement with the end of the second tubular member. A spring yieldably urges the actuating rod and the tubular members in a brake applying direction, but is normally opposed by fluid pressure in the chamber. The brake may be released after application by the resilient means by turning the shaft to move the second tubular member away from the actuating rod.