| 摘要 |
The purpose of the present invention is to prolong the life span of a mold molding a rotator. In a webbing winding device, as a limitation body (6) rotates to a limitation position by friction when a V gear (38) rotates in the winding direction, when the V gear (38) rapidly rotates to the lead-out direction due to a rebound of stoppage of rotation to the winding direction, the limitation body (66) restricts the fluctuation to the operating direction of a W foul (44), and the lock of the withdrawal of the webbing from a spool is limited. An insertion part (68A) of a friction spring (68) of the limitation body (66) is engaged in an engaged part (60) of a support hole (58) and the connection part (62). Here, an enlarging part (64) is formed in the opening part of the support hole (58), and the support hole (58) enlarges the position other than the engaged part (60) in the opening part compared to the position of the engaged part (60). For this reason, even with a small minimum diameter of the support hole (58), the strength of the molded part of the support hole (58) in a mold molding the V gear (38) is high, and the life span of the mold is extended. |
