| 摘要 |
<p>A driving force transmission apparatus (1) includes: a front housing (8) and an inner shaft (3) coaxially with each other and rotatable relative to each other; a main clutch (4) transmitting torque between the front housing (8) and the inner shaft (3); and a cam mechanism (7) having a main cam (70) and a pilot cam (71) and using the main cam (70) to press the main clutch (4). Where a circumferential gap angle between each spline tooth (80b) of the front housing (8) and a corresponding first protrusion (41 a) of outer clutch plates (41) is ¸1, a circumferential gap angle between each spline tooth (30a) of the inner shaft (3) and a corresponding protrusion (40a) of inner clutch plates (40) is ¸ 2 and a circumferential gap angle between each spline tooth (30a) of the inner shaft (3) and a corresponding protrusion (70b) of the main cam (70) is ¸ 3 , the inequality ¸ 1 + ¸ 2 - ¸ 3 ‰¥ 1.0° is satisfied.</p> |
