SCHALTVORRICHTUNG FÜR EIN GETRIEBE, INSBESONDERE EIN SCHALTGETRIEBE EINES KRAFTFAHRZEUGES

摘要

PCT No. PCT/EP93/02920 Sec. 371 Date Mar. 31, 1995 Sec. 102(e) Date Mar. 31, 1995 PCT Filed Oct. 22, 1993 PCT Pub. No. WO94/10484 PCT Pub. Date May 11, 1994The invention concerns a gear-changing device for a transmission, in particular a toothed gear system. During switching operations two gear stages of a gear group should not be simultaneously engaged. According to the invention this is prevented by the fact that a slider-crank mechanism (4) (oscillating cranks and a slide rod (1)) are moved from a stationary rest position to their switching position. The rest position is urged by coupling mechanisms (6). A driving position is established with the slide rod (1). In order to prevent two speeds from being simultaneously switched during a faulty operation, the distances between the rest positions and between the driving position (FIG. 1 ) of the coupling mechanisms (6) differ.