Seat belt retractor and method for assembling spindle of seat belt retractor

摘要

A seatbelt retractor and method of incorporating a spindle into a retractor frame. The seatbelt retractor includes a spindle having a recessed portion in a cylindrical surface for retracting a webbing, and a retractor frame including two flat plate-shaped side walls that are provided in parallel via an interval (A) in order to support the spindle, each of the two side walls being provided with a circular through hole having a diameter (C). An element on a first end of the spindle is contained within a range of a distance (D) from a deepest portion of the recessed portion, and an element on a second end of the spindle is contained within a range of a distance (B) from the deepest portion of the recessed portion. The distance (D) is smaller than the height (C), and the distance (B) is smaller than the interval (A).

主权项

1. A seatbelt retractor comprising:
a spindle having a recessed portion in a cylindrical surface for retracting a webbing; and a retractor frame including two flat plate-shaped side walls that are provided in parallel and spaced apart at an interval (A) in order to support the spindle, at least one of the two side walls being provided with a through hole having a diameter (C); elements on a first end of the spindle, all of the elements on the first end of the spindle being contained within a range of an arc defined by a first distance (D) measured from a deepest portion of the recessed portion, elements on a second end of the spindle, all of the elements on the second end of the spindle being contained within a range of an arc defined by a second distance (B) from the deepest portion of the recessed portion, one of the elements on the second end of the spindle defining an effective diameter that is larger than the diameter (C) of the through hole, and the first distance (D) is smaller than the diameter (C), and the second distance (B) is smaller than the interval (A).