Patent ID: 6523769
Filing Date: 2003-02-25
Classification: B60R

Abstract:
A seat belt spooling device comprising:a frame including first and second sidewalls; a reel disposed between the sidewalls, for spooling a seat belt; wherein the reel is biased to rotate in the spooling direction; a pretensioner for driving the reel to rotate in the spooling direction in an emergency; and a locking structure for locking the reel in the emergency, wherein the pretensioner comprises: a driving wheel connected to the reel; balls disposed along the first sidewall and around the periphery of the driving wheel; a gas generator for applying pressure of gas to the balls so as to move around the periphery of the driving wheel; and a ball-receiving member for receiving the balls which move into the ball-receiving member, wherein the ball-receiving member extends from said first sidewall to said second sidewall, and an opening is formed toward an end in the extending direction of the ball-receiving member, the opening opposing said second sidewall.