公开(公告)号：US3556272A

公开(公告)日：1971-01-19

申请号：US3556272D

申请日：1969-06-18

Applicant: METAL BELLOWS CO

Inventor： JONES GEOFFREY T

IPC: F16D65/14 ,  F16D67/04

CPC classification number: F16D67/04 ,  F16D2121/02

Abstract: A pneumatic brake and clutch has driving and driven members rotatably mounted in a housing which is fluid tight. A friction plate is positioned opposite the driving member and connected by way of a bellows to the driven member. The plate is normally biased by the bellows into frictional engagement with the driving member so that when the driving member is rotated, the driven member rotates also. Fluid under pressure may be introduced into the housing exteriorly of the bellows which compresses the bellows and pulls the friction plate away from the driving member so the torque is no longer coupled to the driven member. At the same time, the plate may also be pulled into engagement with a friction surface on the housing which brakes the plate and driven member to a stop.