| 摘要 |
<p>PCT No. PCT/EP96/00728 Sec. 371 Date Aug. 19, 1997 Sec. 102(e) Date Aug. 19, 1997 PCT Filed Feb. 22, 1996 PCT Pub. No. WO96/27090 PCT Pub. Date Sep. 6, 1996A synchronizing device (2) is proposed for torque-transmitting connection of two rotary parts of a shift transmission, in particular for connecting a transmission shaft (4) with gearwheel (6, 8) rotatably supported on the transmission shaft (4). A synchronizer sleeve (30) has an outer disc carrier (36) connected with a gearshift device (64) and an inner disc carrier (34). A set of discs (40) is provided between the disc carriers (34, 36). The adjacent discs of the set of discs (40) are alternatively connected either with the inner disc carrier (34) or with the outer disc carrier (36). When the speed of rotation of the outer disc carrier (36) differs from that of the inner disc carrier (34), the discs allow a synchronization moment. For that purpose the outer disc carrier (36) has a device (62) for form-fittingly connecting the outer disc carrier (36) with a device (60, 76) on the gearwheel (6, 8). After an axial displacement of the outer disc carrier (36) in direction to the gearwheel (6, 8) to be engaged, form locking is achieved before the torque-transmitting coupling teeth (24, 26, 32) between the inner disc carrier (34) and the gearwheel (6, 8) engage each other. The inner disc carrier (34) is permanently non-rotatably connected with the transmission shaft (4) and a spring element (42) is provided which is capable of constantly exerting a force on the disc set (40) for achieving a synchronization moment. The friction discs preferably have paper linings. The form-locking devices and the coupling teeth may be spring-mounted and have blunt ends.</p> |
