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DISK BRAKE PAD AND DISK BRAKE APPARATUS

  • US 20150122597A1
  • Filed: 11/06/2014
  • Published: 05/07/2015
  • Est. Priority Date: 11/07/2013
  • Status: Active Grant
First Claim
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1. A disk brake pad supported on a pad support member movably in an axial direction of a rotor for a disk brake, comprising:

  • a lining; and

    a back plate supporting a back surface of the lining,wherein shapes of opposite sides of the back plate in a circumferential direction of the rotor are asymmetric with respect to the circumferential direction,a first side part of the back plate in the circumferential direction includes a guided portion configured to engage movably in the axial direction with a guiding portion formed in the pad support member, the guided portion is disposed at a position more inward in a radial direction of the rotor than a line of action of a brake tangential force applied in braking, andthe guided portion is configured to engage with the guiding portion so as to support a brake tangential force applied toward a second side part of the back plate which is opposite to the first side part in the circumferential direction in braking, and the back plate is configured to support a brake tangential force applied toward the first side part in braking at a portion of the back plate that exists more outward in the radial direction than the line of action of the brake tangential force applied toward the first side part, so that the back plate is configured to receive a moment pressing down the second side part inward in the radial direction in both of forward-run braking and backward-run braking operations.

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