SEATBELT REEL-IN DEVICE

There is provided a seatbelt reel-in device that avoids inadvertent operation of a lock operation tool by mischief of a child sitting in a child seat and thus prevents a seatbelt worn by the child frombeing accidentally reeled off from a reel-in rotating body more reliably. The seatbelt reel-in device comprises: the reel-in rotating body (30); the rotation lock mechanism (37); the lock operation tool (40) for switching the rotation lock mechanism (37) between locking state and unlocking state; the inhibiting mechanism (38) for inhibiting the rotation lock mechanism (37) from switching to unlocking state, the inhibiting mechanism (38) being switched between inhibiting state for inhibiting the rotation lock mechanism (37) from switching to unlocking state and permitting state for allowing the rotation lock mechanism (37) to switch to unlocking state; and the inhibition operation tool (41) for switching the inhibiting mechanism (38) between inhibiting state and permitting state.