Patent ID: 7963210

Claim:
A spring-loaded brake cylinder for a commercial vehicle, comprising: a spring-loaded brake piston actuatable by an accumulator spring; a housing in which the brake piston is mounted, the brake piston delimiting on one side a spring-loaded brake chamber and on an opposite side a spring chamber which receives the accumulator spring, wherein the spring-loaded brake piston is connected to a spring-loaded piston rod; an emergency release device operatively configured to release the spring-loaded brake cylinder by axially displacing the spring-loaded brake piston counter to a prestress of the accumulator spring; wherein the mechanical emergency release device comprises (a) a threaded spindle fixed rotatably in the housing and being in engagement with an axially displaceable transmission device secured non-rotatably in the emergency release device, the transmission device being brought into contact with a bearing face on the spring-loaded brake piston for a release of the spring-loaded brake cylinder; (b) an indicator rod which indicates a position of the spring-loaded brake piston, the indicator rod extending through the threaded spindle and being displaceable in an axial direction with respect to the threaded spindle; and (c) a stop body operatively configured for engagement with the transmission device, the stop body being arranged in an end region of the indicator rod and being connected positively to the indicator rod via a latching connection produced by an axial relative movement between the indicator rod and the stop body.