Patent ID: 7726693

Claim:
A motor retractor comprising: a long band of webbing that restrains a body of a passenger seated in a seat of a vehicle in a state where the passenger is wearing the webbing; a take-up shaft to which a longitudinal-direction base end side of the webbing is locked and which is rotated such that the webbing can be taken up and pulled out; a motor that causes the take-up shaft to rotate in a webbing take-up direction; and a controller that controls a take-up force applied to substantially all of the webbing by supplying current of a first predetermined current value (I 0 ) to the motor immediately after the worn state of the webbing has been lifted and reducing the size of the supply current to a second predetermined current value (I 1 ) that is smaller than the first predetermined current value (I 0 ) at a point in time when a preset amount of the webbing has been taken up or at a point in time when a predetermined amount of time has elapsed after the wearing of the webbing has been lifted, wherein the controller includes a current detection circuit that detects a stall current flowing to the motor, and the controller cuts off the supply of the current to the motor when the current detection circuit detects that a stall current exceeding a third predetermined current value (IL), wherein the third predetermined current value (IL) is smaller than the first predetermined current value (I 0 ) and larger than the second predetermined current value (I 1 ), is flowing to the motor from the predetermined point in time on.