초록 ▼

A webbing retractor includes a spool around which a webbing is wound in such a manner as to be capable of being pulled out; an energy absorbing member which is deformed by the spool when a rotating force acting in a pulling-out direction of the webbing is applied to the spool at the time of a sudden

A webbing retractor includes a spool around which a webbing is wound in such a manner as to be capable of being pulled out; an energy absorbing member which is deformed by the spool when a rotating force acting in a pulling-out direction of the webbing is applied to the spool at the time of a sudden deceleration of a vehicle, so as to prevent an increase in a tensile force of the webbing; a pretensioner which is connected to the spool when a deceleration of a predetermined value or more is applied, so as to rotate the spool in a taking-up direction of the webbing; and a canceling portion disposed between the spool and the pretensioner so as to cancel the stopping of rotation in a paying-out direction of the webbing by the pretensioner after operation of the pretensioner. Accordingly, after the operation of the pretensioner, the rotation of the spool in the pulling-out direction of the webbing is not restricted, and the energy absorption by the energy absorbing member is not restricted.

대표청구항 ▼

[ What is claimed is:] [1.] A webbing retractor comprising:a spool around which a webbing is wound in such a manner as to be capable of being pulled out;an energy absorbing member which is actuated by said spool when a rotating force acting in a pulling-out direction of the webbing is applied to sai

[ What is claimed is:] [1.] A webbing retractor comprising:a spool around which a webbing is wound in such a manner as to be capable of being pulled out;an energy absorbing member which is actuated by said spool when a rotating force acting in a pulling-out direction of the webbing is applied to said spool at the time of a sudden deceleration of a vehicle, so as to prevent an increase in a tensile force of the webbing;a pretensioner which is connected to said spool when a deceleration of a predetermined value or more is applied, so as to rotate said spool in a taking-up direction of the webbing; anda canceling portion including a deformable portion disposed between said spool and said pretensioner for deformably canceling the stopping of rotation in a paying-out direction of the webbing by said pretensioner after operation of said pretensioner.