| 摘要 |
PROBLEM TO BE SOLVED: To reduce cost by reducing a processing process of an idle shaft, and to increase efficiency in idle shaft installing work. SOLUTION: An engaging projection 103 is projected in an end part of the idle shaft 89. A projection locking groove 105 is arranged in a bearing part 98 of a gear cover 24 in response to the engaging projection 103. The engaging projection 103 has an introducing groove 107 extending in the axial direction, and a locking groove 108 extending by bending in a right-angled shape from the introducing groove 107. The engaging projection 103 is inserted into the introducing groove 107, and is inserted into and locked on the locking groove 108 by rotating the idle shaft 89. The locking groove 108 extends in the rotational direction of the idle shaft 89, and the engaging projection 103 always receives force in the direction inserted into the locking groove 108. The idle shaft 89 is installed in the gear cover 24 by preventing slipping-out/rotation by the engaging projection 103 and the blocking groove 108. COPYRIGHT: (C)2009,JPO&INPIT
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