Adaptive safety belt system of vehicle

Abstract

The invention discloses an adaptive safety belt system of a vehicle. The system comprises a woven belt, a retractor fixed on a frame and a guide ring articulated to a vehicle post B; the lower end of the woven belt is fixed on the frame, and the upper end of the woven belt passes through the guide ring and is wound on the retractor; the system also comprises a linkage mechanism arranged in the vehicle post B; and one end of the linkage mechanism is connected with the guide ring, the other end of the linkage mechanism is connected to the retractor, and the guide ring is driven to rotate proportionally according to the retracting operation of the retractor on the woven belt. The guide ring rotates proportionally together with retraction of the woven belt through the linkage mechanism, so when the vehicle abruptly decelerates or collides and a passenger moves forwards to the front part of the vehicle and drives the woven belt to be pulled out, the guide ring rotates proportionally to thefront part of the vehicle under the drive of the linkage mechanism, and the woven belt is prevented from being blocked by extrusion at the front part of the guide ring.

Description

technical field [0001] The invention relates to a three-point safety belt system for a vehicle, in particular to a seat belt guide mechanism for preventing the seat belt from being squeezed during the force limiting process when the vehicle collides, resulting in the seat belt being squeezed and stuck. Background technique [0002] The three-point safety belt is ingeniously designed and can completely fix and support the passenger's body. It is still the most effective protective measure to protect life in today's traffic accidents. A seat belt system generally includes a seat belt retractor, a seat belt guide mounted on the B-pillar of the vehicle, and a seat belt buckle on the inside of the seat. [0003] When the vehicle decelerates sharply or collides, the relative motion generated by it causes the occupant to move forward and pull the webbing out from the retractor, and the seat belt gathers in the direction that the guide ring is biased toward the front of the vehicle...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the seat belt webbing is squeezed and jammed at the front of the guide ring when the guide ring passively rotates forward and then rotates when the vehicle decelerates rapidly or collides, the technical scheme adopted is described above. Among them, the latter two schemes all use the method of limiting the guide ring. The rotation angle or rotation angle of the guide ring is fixed, and the rotation of the guide ring is passive rotation driven by the seat belt, which cannot adapt to the rapid deceleration of the vehicle. or changing conditions at the time of collision

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