Synchronization device for manual gearbox, has shaft including hydraulically extendable element for producing clamping force that acts between idle gear and shaft, where idle gear is selectively and rotatably held relative to shaft

摘要

The device (1) has an idle gear (2) selectively and rotatably held relative to a shaft (6) and applied in a torque-proof manner. The shaft has a hydraulically extendable element (7) to produce a clamping force that acts between the idle gear and the shaft. Multiple hydraulically extendable elements are arranged on the shaft and formed for cooperating with respective idle gears. The hydraulically extendable elements are arranged adjacent to each other and have an elastically expandable extension sleeve that limits a hydraulic space.