| 摘要 |
<p>The disclosed shaft support structure for the rotating shaft of one of two members, which are molded parts, being supported in the bearing aperture of the other, can favorably secure precision of a rotational movement, and moreover enables the simultaneous forming of the two members in the same mold. Of a right rotation shaft (25), the cross section of a held section (37) that is held within a right bearing aperture (36) has maximum outer peripheral edges (51, 52) that have a maximal distance from the rotational center (C) thereof and that are disposed separated from each other in the peripheral direction, and the right bearing aperture (36) has minimum inner peripheral edges (53, 54) that have a minimal distance from the rotational center and that are disposed corresponding to the maximum outer peripheral edges. In the state where the right rotation shaft is held by the right bearing aperture, the distance from the rotational center to the maximum outer peripheral edges and the distance from the rotational center to the minimum inner peripheral edges are the same, and the configuration is such that at least a portion of the maximum outer peripheral edges and the minimum inner peripheral edges make sliding contact only when the right rotation shaft is in a predetermined rotational range.</p> |
