| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a webbing take-up device capable of preventing or suppressing slip-off of a spiral spring from a spring storing part and an increase of resistance in tightly winding and opening of the tightly winding in the spiral spring. <P>SOLUTION: An interference part 132 is projected and formed toward the rotary radius direction inside of a rachet gear 92 from an opening edge of a spring storing hole 126 of the rachet gear 92 stored with a reduction balance spring 130 therein. When an outermost layer part of the reduction balance spring 130 is displaced to the opening side of the spring storing hole 126, a surface on a bottom wall part 94 side of the interference part 132 interferes with the outermost layer part of the reduction balance spring 130. As a result, the slip-off of the outermost layer part of the reduction balance spring 130 from the spring storing hole 126 can be prevented or suppressed. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
