| 摘要 |
1,108,095. Disc brake; automatic adjuster. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as A. TEVES MASCHINEN-UND ARMATURENFABRIK KOMM. GES.]. 3 March, 1966 [23 July, 1965], No. 9372/66. Heading F2E. An hydraulically actuated disc brake provided also with a handbrake system includes a casing 3, an actuating piston 4 therein, a slack adjusting screw 5 secured to the piston, a slack adjusting nut 6 on the screw, a spring-loaded pivoted pawl 7 engaging with the nut to rotate it when the pawl 7 is rotated, the pawl being movable by an entraining element 8a bearing on the nut. When the piston 4 moves forward and excessive slack is present the gap 9, between the end of a slot in the entraining element and the aim 10 of the pawl, is taken up and the pawl rotated. On return of the piston the pawl moves back, engaging teeth 6 on the nut to rotate the latter and take up the slack. The' piston is secured against rotation by a toothed sleeve 11 engaged by a spring 12 attached to a disc portion 8. The handbrake system includes a lever 13 which acts on the piston. In another embodiment the handbrake system is provided by a lever and a ball and ramp mechanism disposed between the piston and the friction pad 1. |
