Abstract: A cylindrically-shaped motor shaft forming a rotational axis of a motor includes a processing target region, a spiral groove, and a reverse spiral groove intersecting with the spiral groove at at least one point. The processing target region has a first end closer to a bottom face of the cylindrical shape and second end closer to a top face side of the cylindrical shape. At least one turn of the spiral groove surrounds an outer circumferential surface in the processing target region. The reverse spiral groove surrounds the outer circumferential surface in the processing target region in a direction reverse to that of the spiral groove.

Abstract: A cylindrically-shaped motor shaft forming a rotational axis of a motor includes a processing target region, a spiral groove, and a reverse spiral groove intersecting with the spiral groove at at least one point. The processing target region has a first end closer to a bottom face of the cylindrical shape and second end closer to a top face side of the cylindrical shape. At least one turn of the spiral groove surrounds an outer circumferential surface in the processing target region. The reverse spiral groove surrounds the outer circumferential surface in the processing target region in a direction reverse to that of the spiral groove.

Abstract: An elongated pillar garnish configured to be attached to a gap between a peripheral edge portion of a window pane of a vehicle and a pillar of the vehicle, the pillar garnish including: an elongated attachment member for attaching the pillar garnish to the gap; and an elongated decorative member assembled to a front surface side of the attachment member, in which the attachment member includes an elongated main body part, and a cover part provided to at least one end of the main body part in a longitudinal direction, in which the cover part has a covering portion covering at least a part of a front surface of the decorative member, and a supporting wall portion erected from the main body part toward the outer side and supporting the covering portion, and in which the supporting wall portion is provided along a direction intersecting with the longitudinal direction.

Abstract: An elongated pillar garnish configured to be attached to a gap between a peripheral edge portion of a window pane of a vehicle and a pillar of the vehicle, the pillar garnish including: an elongated attachment member for attaching the pillar garnish to the gap; and an elongated decorative member assembled to a front surface side of the attachment member, in which the attachment member includes an elongated main body part, and a cover part provided to at least one end of the main body part in a longitudinal direction, in which the cover part has a covering portion covering at least a part of a front surface of the decorative member, and a supporting wall portion erected from the main body part toward the outer side and supporting the covering portion, and in which the supporting wall portion is provided along a direction intersecting with the longitudinal direction.