| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To support a normal rotation idler gear for converting rotation of a counter shaft of an advancement/retreating switching mechanism normal and transmitting it to a shift shaft while omitting an idler shaft. <P>SOLUTION: A high/low speed shift mechanism 4 is provided on a propeller shaft 3 connected to an engine 2, and the advancement/retreating switching mechanism 6 is provided on a counter shaft 5 transmitted with an output from the high/low speed shift mechanism 4. A group of drive gears of a main shift mechanism 8 is provided on a shift shaft 7 transmitted with an output from the advancement/retreating switching mechanism 6, and a driven shaft 9 provided with a group of driven gears of the main shift mechanism 8 is arranged on an extension of the propeller shaft 3. The normal rotation idler gear 10 for converting the rotation of the counter shaft 5 of the advancement/retreating switching mechanism 6 normal and transmitting it to the shift shaft 7 is rotatably supported on the propeller shaft 3. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
