| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a multi-gear-speed transmission capable of shortening work time by facilitating assembly work with a simple structure. <P>SOLUTION: The multi-gear-speed transmission includes; cam rods 21, 22 in sliding contact with an inner peripheral surface of an inner cavity of a gear shaft 12; pin members 23 inserted in pin holes bored in the gear shaft 12 in the radial directions and advanced or retreated by alternately making contact with the sliding contact surfaces of the cam rods 21, 22 and cam grooves; and swing claw members 24, 25 rotatably supported on pivot pins 26 provided in the gear shaft 12 and swinging as the pin members 23 are advanced or retracted to be engaged with or disengaged from gears "n". The swing claw members 24, 25 and the pivot pins 26 are embedded in recessed parts 12d, 12cv, 12av formed in an outer periphery of the gear shaft 12, annular bearing collar members 13 externally fitted over the gear shaft 12 are arranged to press the pivot pins 26 from the outer side, and the gears "n" are rotatably borne on the bearing collar members 13. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
