Patent ID: 8235182

Claim:
A brake mechanism for a wheel, comprising: a disk brake system; a pad connector connected with said disk brake system; a pad support movably coupled with said pad connector for supporting a brake pad at said pad support, wherein said pad support is moved by said disk brake system in response to an actuation of said pad connector when said pad support is moved for braking said wheel; and a buffering device, which comprises: a cable having a first end coupled at said pad support; a tube having a through hole, wherein an opposed second end of said cable is extended into said tube through said through hole and is extended to a closed end of said tube; and a resilient member, which is received in said tube and coupled with said cable, for applying pressure to said brake pad responsive to said wheel through said cable, wherein when said pad support is shifted for braking said wheel, a length of said cable within said tube is shortened to compress said resilient member for generating a bouncing force thereat, such that said bouncing force of said resilient member pushes said pad support back for absorbing and buffering shocks between said brake pad and said wheel.