Patent ID: 7395904
Filing Date: 2008-07-08
Classification: F16D

Abstract:
1. A disc brake having an anchor that is fixed to a support member of a vehicle to position first and second parallel rails in perpendicular alignment with a rotor, a first friction member is retained between the first and second rails and located adjacent a first face of the rotor, a second friction member is retained between the first and second rails and located adjacent a second face of the rotor and actuating means for respectively moving the first and second friction members into engagement with the first and second faces on the rotor to effect a brake application, said actuating means being characterized by a first lever having a first end pivotally connected to the anchor and a second end that extends along a plane that is substantially perpendicular to the first and second rails for aligning a first contact member with the first friction member, a second lever having a first end pivotally connected to the anchor and a second end that extends along a plane that is substantially perpendicular to the first and second rails for aligning a second contact member with the second friction member, said second end of said second lever having a first ramp surface thereon that is aligned in a plane that extends away from the rotor, a third lever having a first end pivotally connected to said second end of said first lever and a second end, said second end of said third lever including a yoke through which said second end of said second lever and a wedge which extends through and assists in maintaining said first lever, second lever and third lever in a same plane with respect to the anchor, said wedge engaging said first and second ramp surfaces and responding to an input force by moving on said first and second ramp surfaces such that said first lever is pulled by said third lever and pivots about said first end of said first lever to move the first friction member by way of the first contact member into engagement with the first face of the rotor and said second lever is pushed to pivot about said first end of said second lever to move the second friction member by way of the second contact member into engagement with the second face of the rotor to effect a brake application.