摘要 |
PURPOSE:To improve the yield of friction board by forming the friction board with a plurality of arched boards sticked in circumferential direction on the sideface of disc brake body. CONSTITUTION:A disc brake 9 is provided with a disc brake body 13 tightened through a screw to a disc wheel 6. An annular friction board 15 composed of a plurality of arched boards 18 is sticked in the circumferential direction on each sideface of the outercircumferential section of disc body 13. The adjoining joint 19 of said board is inclined radially. The arched boards 18 can be punched while bringing near each other thereby the yield is improved. While since the joint 19 is inclined, it can slide smoothly. |