Patent ID: 9126565
Filing Date: 2015-09-08
Classification: B60R

Abstract:
1. A retractor for a seat belt comprising: a spool around which a webbing is wound; a frame rotatably coupled with the spool and receiving the webbing wound around the spool; a flywheel gear provided at a central portion thereof with a driving gear having an axis identical to a rotational axis of the spool, having one-directional gear teeth formed along an outer circumferential surface thereof, and mounted on one end of the spool to rotate together with the spool; a vehicle sensor locked with the one-directional gear teeth if the frame is inclined at a predetermined angle or more to prevent the webbing from being withdrawn; a lever locked with the one-directional gear teeth to prevent the webbing from being withdrawn while allowing the webbing to be introduced if the webbing has been withdrawn by a predetermined first length, and separated from the one-directional teeth to allow the webbing to be withdrawn and introduced if the webbing is introduced again so that the webbing is withdrawn by a predetermined second length after the webbing has been withdrawn by the first length; and an integrated plate including a driven gear operating together with the driving gear of the flywheel gear to rotate together with the spool and the flywheel gear, the integrated plate comprising a first plate adjusting the lever according to a withdrawn length of the webbing and a second plate integrated with the first plate as a step structure to determine an operation of the vehicle sensor according to the withdrawn length of the webbing.