| 摘要 |
PURPOSE:To prevent a pushbutton from the generation of vibration and noise and to make assembling easy by arranging a sleeve between the upper end part of a rod and the pushbutton and forming an inclined surface on the pushbutton so as to slide on the upper surface of the sleeve. CONSTITUTION:An operation lever 1 of an automatic speed changer gear is formed like a pipe and a rod 3 is formed on the inside of the lever 1. A pin 5 on the lower part of the rod 3 is engaged with a speed change position holding cam 6. A T-shaped knob 7 is formed on the upper end part of the operation level 1 and a slidable pushbutton 8 is formed in its inside. An inclined surface 12 is formed on the pushbutton 8 and abutted upon the inclined surface 14a of the sleeve 14 abutted upon the upper surface 3a of the rod 3. Consequently, the sleeve 14 is energized upwards from the operation lever 1 and the pushbutton 8 is pressed against the upper sliding surface in the knob 7 to prevent the pushbutton 8 from vibration and noise. A spring 15 energizing the sleeve 14 upwards has also a function pressing the pushbutton 8 in the external direction, so that the spring in the knob 7 can be omitted. |
