Patent ID: 8118249
Filing Date: 2012-02-21
Classification: B60R

Abstract:
1. A webbing winder comprising: a spool which is rotated in a winding direction so as to wind a webbing belt, and is rotated in a withdrawal direction so as to draw out the webbing belt; a rotary member which is rotatably disposed relatively to the spool, and is connected in such a manner as to be able to rotate following along with the spool; a locking member which is operated to restrict the rotation of the spool in the withdrawal direction; a rotation detecting member which is disposed in the rotary member, and is displaced in a predetermined lock start direction that actuates the locking member when the rotary member is rotated at a predetermined angular speed or higher in the withdrawal direction; and a restricting member which is disposed in the rotary member so as to restrict the rotation detecting member from being displaced in the lock start direction in reaction to stoppage of winding of the webbing belt by the spool by engagement with the rotation detecting member, wherein the restricting member includes a bent rod-like friction spring and a contact member that is able to be moved with respect to the rotary member upon the generation of a frictional force by the rotary member; and the friction spring is rotatably supported at one end thereof by the rotary member, and the friction spring is fitted at the other end thereof around the contact member, and includes a bent portion that engages and disengages the rotation detecting member.