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Automobile safety belt pretensioner

A seat belt pretensioner, car technology, applied in the direction of belt tensioner, etc., can solve the problem of passenger injury, injury, etc., and achieve the effect of advanced structure

Inactive Publication Date: 2013-07-31
黄绍勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The car seat belt is a protective device to protect the safety of the driver and passengers. When the car accidentally collides, the driver and the passengers lean forward due to inertia. Collisions and bumps are bound to be threatened by injuries from multiple directions; in addition, if the seat belts are tightened and the activity schedule is reduced, passengers will be injured to a certain extent, and related safety issues need to be resolved urgently

Method used

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  • Automobile safety belt pretensioner
  • Automobile safety belt pretensioner
  • Automobile safety belt pretensioner

Examples

Experimental program
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Embodiment Construction

[0013] Please refer to the accompanying drawings to illustrate its implementation process:

[0014] An automobile seat belt pretensioner, comprising a bracket 11 and a cylinder tube 19 on its side, a piston 17 and a gas generator 14 are arranged inside the cylinder tube 19, the piston 17 pulls one end of a steel wire rope 7 through an aluminum ring 20, and is arranged on the other side of the steel wire rope 7 The pull ring 3 at one end is connected to the ribbon through the lock assembly 4. When the gas generator 14 is triggered, the generated gas pushes the piston 17 to move, effectively pushing the aluminum ring 20 to pull the wire rope 7, and the wire rope 7 is pulled through the lock assembly 4. And tighten the webbing to pull the occupant back to improve the protective effect of the seat belt. The end of the cylinder tube 19 is provided with a pressure port that can prevent the impact of the piston 17 from coming off. There are steel balls to form a self-locking mechani...

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PUM

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Abstract

The invention discloses an automobile safety belt pretensioner. The pretensioner comprises a support (11) and an earthen pipe (19) arranged on the side surface of the support (11), wherein a piston (17) and a gas generator (14) are arranged in the earthen pipe (19); the piston (17) pulls one end of a steel wire rope (7) through an aluminum ring (20); a pull ring (3) arranged at the other end of the steel wire rope (7) is connected with a braid through a lock catch assembly (4); an impressed notch capable of preventing the piston (17) from impact dropping is formed in the tail end of the earthen pipe (19); the stroke of the piston (17) is 50 mm; and a steel ball is arranged at the bell mouth of the piston (17) and forms a one-way revolving self-locking mechanism together with the bell mouth of the piston (17). The automobile safety belt pretensioner has the benefits of capability of automatic tensioning in collision, advanced, compact and reasonable structure, safety and reliability.

Description

technical field [0001] The invention relates to an automobile safety belt, in particular to an automobile safety belt pretensioner. Background technique [0002] The car seat belt is a protective device to protect the safety of the driver and passengers. When the car accidentally collides, the driver and the passengers lean forward due to inertia. Collisions and bumps are bound to be threatened by injuries from multiple directions; in addition, if the seat belts are tightened and the activity schedule is reduced, passengers will be injured to a certain extent, and related safety issues need to be resolved urgently. Contents of the invention [0003] Aiming at the disadvantages of the existing automobile safety belts, the invention provides a novel automobile safety belt pretensioner. [0004] In order to achieve the above object, the measures taken by the invention: [0005] An automobile seat belt pretensioner, including a bracket and a cylinder tube on its side, a pist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R22/46
Inventor 黄绍勇
Owner 黄绍勇