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.

IPC Classes  ?

• F16D 65/097 - Resilient means interposed between pads and supporting members
• F16D 65/62 - Slack adjusters mechanical self-acting in both directions for adjusting excessive and insufficient play
• F16D 65/00 - Parts or details of brakes
• F16D 55/00 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes