ANORDNING FOR EFTERSTELLNING AV BROMSAR, SERSKILT RELSFORDONSBROMSAR

摘要

A brake cylinder has a reciprocating piston therein from which extends a sleeve surrounding a coaxial threaded shaft. A nut threaded on the shaft engages a surface on a control sleeve which is spring urged against the nut in the braking direction. Stop means are provided to limit the axial displacement of the control sleeve. The contracting surfaces of the nut and control sleeve define a first rotary coupling and a second rotary coupling is defined by a second surface on the nut with a first surface on the sleeve. Additional coacting surfaces on the nut and sleeve limit the distance to which the second rotary coupling opens. A spring acts upon the sleeve in a direction opposite to the direction of braking.