Importance

Loading Importance Indicators...

Abstract

The pretensioner is configured to provide a compact and less expensive pretensioner for improving the work assembly efficiency while effectively transmitting the pressing force of plural force transmission members to the ring gear. Plural balls inside the pipe are pressed under the pressure of gas from the gas generator in an emergency. The first ball presses the lever, and the balls other than the first ball sequentially press the subsequent levers such that the ring gear rotates to move rightward. The internal teeth of the ring gear are meshed with external teeth of the pinion attached to the rotary shaft at the side of the spool. The pinion then rotates to allow the spool to retract the seatbelt. The first ball abuts on the ball stopper portion of the pipe to stop the rest of the balls such that most of the balls are located in the circular movement path.

Loading the Abstract Image...

First Claim