Patent ID: 8523097
Filing Date: 2013-09-03
Classification: B60R

Abstract:
1. A vehicular seat belt device comprising: a belt reel on which a webbing that restrains an occupant is wound; an actuator that generates instantaneous rotational drive force by gas that is generated during an emergency; a flywheel that rotates by the rotational drive force of the actuator; a speed increasing mechanism that is housed inside the flywheel and receives a rotational output of the actuator at one speed and transmits it to the flywheel at another speed greater than the one speed; and a connecting and disconnecting unit that connects a low-speed rotation side of the speed increasing mechanism and the belt reel during rotation of the flywheel, wherein the belt reel rotates to the webbing winding-up direction by the rotational drive force of the actuator; and wherein the flywheel accumulates rotational energy of the actuator and drives the belt reel with the accumulated rotational energy.