| 摘要 |
PURPOSE: A disk brake for a vehicle comprising a rollback system is provided to reduce drag by securing operation room between a pad and a disk through the wear of a pad and external force. CONSTITUTION: A disk brake for a vehicle comprises a disk, pad plates(12, 14), a caliper housing(20), and a rollback system. The disk is rotated with the wheel of a vehicle. The pad plate is installed to be reciprocated the back and the front side of a carrier. The caliper housing comprises a piston operating a pad plate. The roll back system comprises a rollback spring, a rollback sealing member(130), and an adjust(140) and restores the piston when external force is removed. The both sides of the rollback spring are connected to a carrier and a pad plate respectively. The rollback sealing member offers restoring force for the restore of the piston. The adjust is supported elastically by a support spring.
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