| 摘要 |
PROBLEM TO BE SOLVED: To prolong the life of a mold for forming a rotor.SOLUTION: In a webbing take-up device, when a V gear 38 is rotated in a take-up direction, a limit body 66 is rotated to a limit position by a friction force. Thus, when the V gear 38 is suddenly rotated in a pulling direction in reaction to the stopped rotation in the take-up direction, the limit body 66 limits swinging of a W pawl 44 in an operation direction to suppress locking of webbing pulling out from a spool. An insertion part 68A of a friction spring 68 of the limit body 66 is locked in a locking part 60 of a support hole 58 and an abutting part 62. An expanded part 64 is formed in an open side part of the support hole 58, and the support hole 58 is expanded at a position other than the locking part 60 of the open side part more than the position of the locking part 60. Thus, even when the minimum diameter of the support hole 58 is reduced, the strength of the forming part of the support hole 58 in a mold for forming the V gear 38 is increased to prolong the life of the mold. |
