Brake caliper device having automatic pad wear compensation mechanism
AssigneeChih-Hsien Liao
InventorChih-Hsien Liao
Life of this patent
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Abstract
A brake caliper device is adapted to be used with a brake disk, and includes a main body unit, first and second pads, and a caliper actuator unit. The caliper actuator unit includes an actuating member, a bolt member that abuts against the actuating member, and a threaded sleeve that is threadedly engaged to the bolt member. When the actuating member is driven by an external force, the actuating member is capable of vibrating axially to cause an axial vibration of the bolt member, which prompts the threaded sleeve to rotate relative to the bolt member for pushing the first pad toward the brake disk, thereby automatically providing a travel stroke that compensates for pad wear.
Claims10
A brake caliper device adapted to be used with a brake disk, the brake disk having a first side surface and a second side surface opposite to the first side surface, said brake caliper device comprising:
- a main body unit including
- a first seat that is adapted to be disposed proximally to the first side surface of the brake disk, and that is formed with a mounting hole extending along a mounting axis, and
- a second seat that is co-movably connected to said first seat, that is adapted to be disposed proximally to the second side surface of the brake disk, and that cooperates with said first seat to define a receiving space therebetween for receiving a part of the brake disk;
- a first pad that is adapted to be disposed between said first seat and the first side surface of the brake disk;
- a second pad that is adapted to be disposed between said second seat and the second side surface of the brake disk;
- and
- a caliper actuator unit mounted to said mounting hole of said first seat and including
- an actuating member,
- a bolt member that abuts against said actuating member, and
- a threaded sleeve that is threadedly engaged to said bolt member;
- wherein, when said actuating member is driven by an external force, said actuating member is capable of vibrating axially to cause an axial vibration of said bolt member, which prompts said threaded sleeve to rotate relative to said bolt member for pushing said first pad toward the brake disk, thereby automatically providing a travel stroke that compensates for pad wear.
Dependencies are inferred from the claim text.