| 摘要 |
PURPOSE:To improve the effect of lubrication between a fork claw part and a shift gear, by forming oil supply channels in a shift fork itself, while providing the fork claw parts with each notch concave part opened to each of end faces and both side faces of every claw part. CONSTITUTION:Pressurized lubricating oil from an oil pump P passes through a main supply channel 11 set up on a shift fork shaft 2 and is fed to each of oil supply channels 151-153 set up in each of shift forks 41-43. At each of fork claw parts 61-63 of the shift forks 41-43, circular notch concave grooves 171-173 to be opened extensively from each of circular end faces to both side faces are formed up, so that lubricating oil of these oil supply channels 151-153 is spread over each groove bottom and both side faces of peripheral grooves 81-83 of the shift gears 71-73 from these notch concave grooves 171-173. |
