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Vehicle seat belt pretensioner

A seat belt pretensioner and generator technology, which is applied in the direction of seat belts, belt tighteners, vehicle components, etc. in the car, can solve the problems of difficult embedding of the retractor and large volume of the retractor, and improve the installability , reduce passenger damage, and effectively preload the effect

Pending Publication Date: 2021-06-11
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is not easy to embed the retractor in the seat due to the large volume of the above-mentioned retractor implementing the pretensioner

Method used

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  • Vehicle seat belt pretensioner
  • Vehicle seat belt pretensioner
  • Vehicle seat belt pretensioner

Examples

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Embodiment Construction

[0035] The following description is merely exemplary in nature and is not intended to limit the disclosure, application or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate similar or identical parts and features.

[0036] refer to Figure 1 to Figure 6 , a vehicle seat belt pretensioner according to one form of the present disclosure is configured to include: a displacement generator configured to generate a linear displacement in the seat frame 1; and a belt guide 11 installed to receive the displacement provided by the displacement generator and The strap 9 is pulled between the retractor 7 and the strap outlet through which the strap extends out of the seat from the retractor 7 fixed to the seat frame 1 .

[0037] In one form of the present disclosure, the displacement generator is configured to include: a cylinder 3 fixed to the seat frame 1; a piston 5 mounted to be movable inside the cylinder 3; and a gas generator 13...

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PUM

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Abstract

The invention relates to a vehicle seat belt pretensioner. The vehicle seat belt pretensioner includes: a displacement generator to generate a linear displacement in a seat frame; and a webbing guide that receives the linear displacement generated by the displacement generator and pulls a webbing. In particular, the webbing extends from a retractor fixed to the seat frame to the outside of the seat.

Description

technical field [0001] The present disclosure relates to a vehicle seat belt pretensioner. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] A seat belt pretensioner is a supplemental device that pulls the seat belt in the event of a vehicle crash, thereby more securely restraining the occupant. [0004] In a conventional three-point seat belt system, the pretensioner is implemented in a retractor and then mounted to the vehicle body. However, we have found that in the case of future vehicles that require the seat to move freely, such as autonomous vehicles, retractors and pretensioners need to be mounted to the seat in order to provide the mobility of the seat. [0005] A retractor is a reel device that contains the webbing of a seat belt and acts to freely release and retract the webbing, and under conditions of sharp acceleration or deceleration,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R22/46
CPCB60R22/4628B60R2022/4647B60R22/1951B60R22/1952B60R2022/1825B60R22/26B60R22/4623B60R22/3413B60R22/1954
Inventor 李贤祐
Owner HYUNDAI MOTOR CO LTD
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