Safety belt automatic flexing device with free wheel clutch
A technology of automatic retractable device and seat belt, applied in the direction of seat belt, belt tensioner, transportation and packaging in the car, which can solve the problems of breaking the balance spring, excessive rotation, damage, etc.
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[0026] The figure shows an automatic retractable seat belt 1. The seat belt 2 can be wound on the seat belt winding section 3 of the shaft 4 by means of the seat belt automatic retractable device 1. The shaft 4 is composed of two parts and the components include a belt winding section 3 and a driving section 5. The shaft 4 is rotatably mounted in the metal casing 6.
[0027] In addition, the seat belt automatic retractable device 1 includes a main drive spring 7, which fixedly connects its outer end 8 with the plastic shell 9. The plastic housing 9 is laterally connected with the metal housing 6 by means of three pins 10.
[0028] The main drive spring 7 connects its inner end 11 to the drive section 5 of the shaft 4 in a rotationally fixed manner. Therefore, when the shaft 4 rotates in the unwinding direction b, that is, when the seat belt 2 is deployed, the shaft 4 is pretensioned by the main drive spring 7 in the winding direction a.
[0029] In addition, the seat belt automati...
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