| 摘要 |
A disc brake is provided to equalize surface pressure of a pad so that efficiency for preventing uneven wear and abnormal wear of the pad, noise, vibration, and harshness can be maximized. A disc brake comprises a caliper housing. The caliper housing includes a disc, a pair of pad plates, a piston(420), and a finger part. The pair of pad plates have a pad disposed on both sides of outer circumference of the disc, respectively. The piston is eccentrically disposed regarding the center of the pad to press one side of the pad plate. The finger part presses the pad plate on the other side. The finger part comprises a large finger unit(520B) and a small finger unit(520A). A contact surface of the small finger unit with the pad plate has smaller width in comparison with a contact surface of the large finger unit. The small finger unit further comprises a sectional coefficient increase unit formed in a vertical direction to the contact surface.
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