Patent ID: 6575271
Filing Date: 2003-06-10
Classification: B60B,B60T,B62L,F16D

Abstract:
A wheel and brake system comprising:an inner wheel adapted to be rotatably mounted to a vehicle; an outer wheel positioned generally concentric with the inner wheel; a plurality of resilient members connecting the inner and outer wheels to one another in a manner to permit resilient movement of the outer wheel relative to the inner wheel; and a brake mechanism comprising: a mounting block adapted to be mounted to the vehicle adjacent the inner wheel; a lever arm pivotally connected to the mounting block in a manner to permit pivoting movement of the lever arm relative to the mounting block between a braking position and a non-braking position, the lever arm having a cam surface and a center axis of rotation about which the lever arm pivots relative to the mounting block; and a cam follower connected to the mounting block in a manner to permit reciprocating movement of the cam follower relative to the mounting block in a lateral direction that is parallel to the center axis of rotation of the lever arm where the cam follower is movable between a wheel-engaging position and a disengaged position, the cam follower having a cam engaging portion that is adapted for camming engagement with the cam surface of the lever arm in a manner so that movement of the lever arm from its non-braking position toward its braking position causes movement of the cam follower from its disengaged position toward its wheel-engaging position, the cam follower having a wheel-engaging portion adapted for frictional engagement with the inner wheel when the cam follower is in its wheel-engaging position.