| 摘要 |
PURPOSE:To supply lubricant to a set of gears engaging with each other to transmit power by speed change operation by providing a speed change operating means with plural oil paths. CONSTITUTION:A pressure oil supplying hole 32 is formed in a transmission case 5, and one end of the pressure oil supply hole 32 is opened to an oil pressure pump and the other is opened to the inner peripheral face of a supporting hole 31. The opening port of said pressure oil supply hole 32 coincides with the pressure oil inlet 29 of either one of oil paths by rotation of a cam cylinder 22, and pressure oil is supplied only to the oil path 28 and connection between the other oil path 28' and the pressure oil supplying hole 32 is shut out. For example when the cam cylinder 22 is arranged to have rotating posture so as to obtain the fifth speed, a pressure oil outlet 34 is formed so as to be opened to the engaging portion between a fifth drive gear 14 and a fifth driven gear 20. Then, lubricant passes through this pressure oil outlet 34 and is injected to the engaging portion. |
