Patent ID: 8826504
Filing Date: 2014-09-09
Classification: B25B,Y10T

Abstract:
1. A disc brake piston retractor tool for retracting at least one piston into at least one cylinder bore of a caliper assembly provided with a set of brake pads to be serviced, the tool comprising: a first pressure plate having an outer surface, and an inner surface provided with an inwardly directed, externally threaded first stud; a second pressure plate having an outer surface, and an inner surface provided with an inwardly directed, externally threaded second stud; a coupler having opposite first and second open ends, and an inner surface internally threaded to threadably receive the first stud from the first open end and the second stud from the second open end so that the coupler rotates relative to the first and second studs; and a reversible ratcheting wrench assembly connected to the coupler for providing selective rotation of the coupler relative to the first and second externally threaded studs, wherein selective rotation of the wrench assembly connected to the coupler results in threading and unthreading of the first and second studs and simultaneous lateral movement of the first and second pressure plates towards and away from the coupler between retracted and extended positions, the outer surface of one of the pressure plates being engageable against the at least one piston to retract the piston into the at least one cylinder bore, and the outer surface of the other of the pressure plates being supported against an interior surface of the caliper assembly opposite the one piston, or being engagable against at least one other piston provided for movement relative to at least one other cylinder bore in the caliper assembly opposite the one piston to retract the other piston.