Patent ID: 8439291
Filing Date: 2013-05-14
Classification: B60R

Abstract:
1. A webbing winding device comprising: a cylindrical shaped spool having a length direction base end side of a long strip-shaped webbing belt anchored to the spool, the webbing belt being wound from the base end side by rotation of the spool in a winding direction; an energy absorbing unit comprising a first energy absorption section connected to the spool at an axial direction intermediate portion inside the spool, such that a spool-side coupling portion is not rotatable relative to the spool, the first energy absorption section absorbing energy on a side further towards a first axial direction end of the spool than the spool-side coupling portion deforming plastically with respect to the spool-side coupling portion, and a second energy absorption section absorbing energy on a side further towards a second axial direction end of the spool than the spool-side coupling portion deforming plastically with respect to the spool-side coupling portion; a first lock unit provided at the first axial direction end of the spool, when actuated the first lock unit retaining the first energy absorption section at the opposite side to the spool-side coupling portion and restricting rotation of the first energy absorption section in a pull-out direction that is opposite to the winding direction; and a second lock unit provided at the second axial direction end of the spool, when actuated the second lock unit retaining the second energy absorption section at the opposite side to the spool-side coupling portion and restricting rotation of the second energy absorption section in the pull-out direction that is opposite to the winding direction, the second lock unit comprising: