| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a multi-speed transmission capable of smoothly shafting by achieving the smooth movement in the axial direction by preventing the inclination of a shift pin with a simple structure. <P>SOLUTION: In this multi-speed transmission, a shift driving mechanism has a shift rod 51 fitted to and inserted into a hollow central shaft of a gear shaft 12 on the inside of a plurality of cam rods C and moving the cam rods C by the movement in the axial direction, the shift pin 58 moving in the axial direction together with the shift rod 51, and a shift drum 67 for setting the rotational axis in parallel to the shift rod 51 and forming a shift guide groove G on an outer peripheral surface for engaging with an end part of the shift pin 58, and is provided with a guide member 8g for axially guiding the vicinity of an engaging part 58a of the shift pin 58 engaging with the shift guide groove G of the shift drum 67. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
