| 摘要 |
PURPOSE:To reduce the members necssary for strength. CONSTITUTION:The pin 28 of a V gear 26 is fitted in a pin hole 30 on a spool 18 slid on a parallel axis line in parpllel to a shaft 20 supported on a frame 10, and in the ordinary case, the spool 18 for taking up a webbing 20 is at the first position, and revolves around a shaft 16, together with the V gear 26, and freely pulls out and winds up the webbing 20. In the sharp deceleration of the vehicle, a ball 44 is engaged with the outer gear 38 of the V gear 26 by the inertial shift of the inertial ball 42 of an acceleration speed sensor 40, and the revolution of the V gear 26 in the webbing pulling-out direction (direction of arrow B) is suppressed. The spool 18 turns around the pin 28, and reaches the second position from the first position against a coil spring 36. At the second position, a lock hook 22 is engaged with an internal gear 24, and the revolution of the spool 18 in the webbing pulling-out direction is suppressed. Accordingly, the car body sensing type taking-up device (VSIR) function can be achieved. |
