| 摘要 |
<p>A construction of coupling spline sections for connecting two gears (302,306) of a countershaft in an automatic transmission. A rotary hollow section (310) having an inner periphery formed with a spline section (312) which is coupled with the spline section (308) of the rotary shaft section (304) and a bearing (318) is disposed between a part of an outer periphery of the rotary hollow section and the support member (316). The spline section of the rotary shaft section and the spline section of the rotary hollow section which are disposed at least inside the bearing are coupled with each other in a loose state that the bearing (318) supported by the tubular section (310) can be free from any stress. The right end part of the spline coupling close to gear (306) has different diameters to cause press fitting state.The left end side with loose spline coupling can act as a guide to facilitate mounting.</p> |
