| 摘要 |
A webbing winding device includes a spool, a pair of leg plates, a torsion shaft, a first locking mechanism, a second locking mechanism, and a control mechanism. A webbing belt is wound onto the spool. The two leg plates oppose one another in an axial direction of the spool. The torsion shaft is provided passing through the spool and deforms when a torque is applied to the spool. The first locking mechanism, at the side of one of the leg plates, restricts rotation of the spool in an unwinding direction. The second locking mechanism, at the side of the other of the leg plates, switches from a lock-release state to a locking state, and restricts rotation of the torsion shaft in the unwinding direction. The control mechanism is provided passing through the spool and causes the second locking mechanism to switch into the locking state.
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