| 摘要 |
PCT No. PCT/DE80/00130 Sec. 371 Date May 19, 1981 Sec. 102(e) Date May 7, 1981 PCT Filed Sep. 11, 1980 PCT Pub. No. WO81/00835 PCT Pub. Date Apr. 2, 1981.A braking apparatus for rail vehicles has a brake actuating unit to one side of the vehicle wheel. A pair of brake shoes oppositely disposed on both sides of the wheel can be pressed against the contact surface of the wheel. A first vertical braking lever is pivotable under a force from the brake actuating unit with respect to the contact force exerted by the first brake shoe. A second vertical braking lever is similarly connected to the other brake shoe. The lower ends of both braking levers are pivotally connected with two traverse members each interconnecting the ends of two parallel tie rods which extent horizontally across both faces of the vehicle wheel. The play or clearance in the application of the brake shoes to the wheel contact surface is automatically adjusted by a self-actuating device in each tie rod. Each adjusting device comprises a screw coupling consisting of a nut threaded on a spindle shaft. There is a single control device on a traverse member by which both screw couplings are jointly actuated. |
