| 摘要 |
PURPOSE:To improve the feeling of operation of the shift lever of the speed change gear without spoiling the effect of preventing erroneous shifting by reducing the extent of select operation between forward speed change stage and backward speed change stage. CONSTITUTION:A first and second speed fork shaft engagement groove 5a, a third and fouth speed fork shaft engagement groove 6a, a fifth speed fork shaft engagement groove 7a and a backward fork shaft engagement groove 8a are arranged in a row, and an operating lever 4a effects selection and shifting of speed. In this case, of the side walls defining the fifth speed fork shaft engagement groove 7a' the one 7a in the shifting direction has a large width, and the one 7a'' in the neutral direction has a small width. Side walls 8a' and 8a'' of the backward shift fork are provided in an opposite fashion near the side walls 7a'' and 7a''. Consequently, the extent alpha' of operation in the selecting direction is reduced. |
