| 摘要 |
PROBLEM TO BE SOLVED: To provide a gear mechanism capable of reducing backlash and also transmitting power excellently. SOLUTION: A shaft section 80 inserted into the through hole 37e of a shaft section 47 turnably. A power transmitting gear 81 and a dummy gear 82 are inserted into the shaft section 80 turnably holding an interval holding body 74 between them, and both of the gears 81 and 82 are arranged symmetrically about an axis line A. A crown gear 73 meshing with the gears 81 and 82 is inserted into the shaft section 47a turnably. A clamp ring 66 is fixed to the shaft section 47a and press the crown gear 73 against the shaft section 80 through a friction reducing sheet 70. As a result, since the gears 81 and 82 are brought into contact pressingly with both sides of the crown gear 73 respectively, force to incline the crown gear 73 is not generated in the crown gear 73. Backlash can be reduced by pressing the crown gear 73 against the gears 81 and 82. COPYRIGHT: (C)2003,JPO
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