| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotational driving force transmission mechanism capable of reducing a possibility that a rubber body is bitten when the rubber body is compressed. SOLUTION: In a rotational driving force transmission structure, an output plate 15 is coaxially and rotatably fitted to a rotatingly driven worm wheel 13, and the damper part 25 of a rubber damper 14 is interposed between an input side support surface 23a formed on the worm wheel 13 and an output side support surface 28a formed on the output plate 15 in the circumferential direction. In the rotational driving force transmission structure, the rotational force of the input side support bearing 23a based on the rotation of the worm wheel 13 is transmitted to the output side support surface 28a through the damper part 25 to rotate the output plate 15. Then, the input side support surface 23a and the output side support surface 28a (entire surfaces thereof) form a recessed surface having perpendiculars L1 and L2 thereof facing the radial inner side of the circumferential direction (direction of tangent LZ thereof). COPYRIGHT: (C)2005,JPO&NCIPI
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