Patent ID: 7306261
Filing Date: 2007-12-11
Classification: B60R

Abstract:
1. A seatbelt retractor comprising: a spool formed into a hollow cylindrical shape and capable of winding a seatbelt onto a spool outer periphery or unwinding the seatbelt from the spool outer periphery, a motor accommodated in a cylindrical space of the spool and capable of rotating the spool in the belt winding direction or the belt unwinding direction; a motor speed-reduction mechanism configured to reduce the rotational speed of the motor via a plurality of gears between the driving shaft of the motor and the spool; and a control mechanism configured to control the operation of the motor, wherein a motor housing of the motor extends in the width direction of the spool outer periphery such that the axial direction of the motor coincides with the width direction of the spool outer periphery, and wherein the ratio of the outside diameter D