Disclosed is a disc brake. The disc brake includes clip parts provided at inner portions of both side ends of a pair of pad plates and engaged with protrusions formed in the carrier and torsion pins fitted into the clip parts such that the clip parts are rotated between the pad plates upon a braking operation of the disc brake. Upon the braking operation, the pad plates push the carrier so that the clip parts are rotated about the torsion pins by the pad plates. Thus, strain energy of the carrier is absorbed through warpage deformation of the torsion pins, so that the carrier has sufficient strength even if an outer beam is removed.
1. A disc brake comprising:
a disc rotating together with a wheel of a vehicle;
inner and outer pad plates each having an inner surface on which a pad is provided to press the disc;
a carrier in which the pad plates are installed such that the pad plates move back and forth in the carrier; and
a caliper housing in which a piston coupled to the carrier to press the inner pad plate against the disc is installed,
wherein clip parts are connected to the carrier at inner portions of both side ends of at least one of the pad plates and torsion pins are fitted into the clip parts such that the clip parts are rotated about the torsion pins relative to the carrier upon a braking operation of the disc brake, and wherein the outer pad plate is formed with insertion holes into which the torsion pins are inserted.
2. The disc brake of claim 1 , further comprising protrusions provided at both side ends of the carrier, the both side ends of the carrier including tips from which the protrusions protrude, wherein each of the both side ends of the carrier protrude forward and extend inward in opposition to each other.
3. The disc brake of claim 2 , wherein the protrusions engage with the clip parts.
4. The disc brake of claim 1 , wherein the clip parts are arranged on the inner surface of the at least one of the pad plates.