| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem with a dog clutch structure of the conventional arts having high protrusions and low protrusions designed in two steps and arranged equiangularly in the circumferential direction of a gear that if a protrusion of an opposite member bounces off the surface of the low protrusion, the protrusion of the opposite member may bounce off the surface of the high protrusion again because the distance to the next high protrusion is short, and if the protrusion of the opposite member should get engaged with the low protrusion, wear may be accelerated by high surface pressure produced in the early stage of engagement because the engagement area is small, by causing the protrusion of the opposite member to surely get engaged with the high protrusion. SOLUTION: In a specified turning direction, the distance from the high protrusion to the next protrusion is short, and the distance from the high protrusion to the next protrusion is long. COPYRIGHT: (C)2009,JPO&INPIT
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