RETRACTOR FOR SEATBELT

摘要

A retractor for a seat belt comprises a winding drum rotatably accommodated between a pair of mutually opposing side walls of a housing, and a support member for rotatably supporting one end of the winding drum, the support member being disposed on the outer side of at least one of the pair of side walls in the rotational direction of the winding drum. The support member has a rotation support part for rotatably supporting one end of the winding drum on a bottom surface facing the one end of the winding drum. The bottom surface of the support member is formed so that the rotation support part curves to a predetermined depth so as to be positioned further inward from the outer periphery of the bottom surface in the rotational axis direction of the winding drum. When the support member rotatably supports one end of the winding drum, the bottom surface elastically deforms outward in the rotational axis direction of the winding drum and pressingly urges the winding drum inward in the rotational axis direction.