| 摘要 |
PROBLEM TO BE SOLVED: To provide a seatbelt retractor with a pretensioner which can be operated repeatedly. SOLUTION: A driven gear 203 provided on a reel 20 is rotated by an ultrasonic motor 224 in a pretension giving direction through a motive gear 201 and an intermediate gear 202. When the ultrasonic motor 224 is rotated normally, a support plate 230 is rotated normally and mashed with gears 202, 203. When the ultrasonic motor 224 is rotated reversely, the gear 202 is separated from the gear 203. The support plate 230 can be rotated by range between the stoppers 246, 248. |
