| 摘要 |
An angle adjusting device for a brake block includes a brake block, a ball and a screw. The brake block has a socket and a through hole defined therein. The ball is rotatably disposed in the socket. The ball has a screw hole corresponding to the through hole. The screw is passed through the through hole of the brake block and is screwed into the screw hole of the ball so that the brake block is mountable on a brake system. The brake block could be pivotally rotated by a connection between the ball and the socket of the brake block, so that a frictional effect of the brake block which contacts with a wheel rim of a bicycle is increased. |
