Patent ID: 7121162

Claim:
A parallel shaft transmission comprising: an input shaft, a first idle shaft, an intermediary shaft, an output shaft and a second idle shaft, which are disposed in parallel with one another; an input-shaft first gear, which is provided on said input shaft; an input-shaft second gear, which is provided rotatably on said input shaft; first clutching means, which connects or disconnects said input-shaft second gear to or from said input shaft; a first idle gear, which is provided on said first idle shaft to mesh with said input-shaft first gear; an intermediary shaft first gear, which is provided on said intermediary shaft to be driven by said first idle gear; an intermediary shaft second gear, which is provided rotatably on said intermediary shaft; second clutching means, which connects or disconnects said intermediary shaft second gear to or from said intermediary shaft; an output-shaft first gear, which is provided rotatably on said output shaft to mesh with said input-shaft second gear and with said intermediary shaft second gear; third clutching means, which connects or disconnects said output-shaft first gear to or from said output shaft; an input-shaft third gear, which is formed in a one-piece body with said input-shaft second gear and is provided rotatably on said input shaft; a second idle gear, which is provided on said second idle shaft to mesh with said input-shaft third gear; an output-shaft second gear, which is provided rotatably on said output shaft to mesh with said second idle gear; and fourth clutching means, which connects or disconnects said output-shaft second gear to or from said output shaft.