| 摘要 |
PURPOSE:To decrease a polishing part and reduce production cost, by providing a turn stop inserted into a through hole provided in an intermediate supporting wall of a transmission. CONSTITUTION:An intermediate supporting wall 3 forms a through hole 3A, connecting one side speed change mechanism chamber 2C in the side of one side speed change mechanism 2A with a chamber 2D of the other side speed change mechanism 2B, in a part of the position where a washer 5 is arranged. The through hole 3A serves as a ventilation hole providing the internal pressure of air in the both chambers 2C and 2D to a fixed level while prevents the washer 5 from being dragged by a disc part 20C of a rotary member 4 and rotated by fitting a turn stop 5A protrusively provided in the front of the washer 5. In this way, the washer, being required to polish only its surface side adapting the rotary member, enables production cost to be suppressed. |
