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Seat belt retractor and seat belt device provided therewith

A technology for seat belt retractors and seat belts, applied in the field of seat belt retractors and vehicle seat belt devices, can solve the problems of increased cost of pretensioners, high price of conduits, increased weight, etc., and achieve lightening Weight, effective movement, effect of reducing weight

Inactive Publication Date: 2012-09-05
JOYSON SAFETY SYST JAPAN KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that not only the weight is increased, but also the cost of the pretensioner is increased due to the high price of the guide tube.

Method used

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  • Seat belt retractor and seat belt device provided therewith
  • Seat belt retractor and seat belt device provided therewith
  • Seat belt retractor and seat belt device provided therewith

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Embodiments for carrying out the present invention will be described below using the drawings.

[0031] figure 1 It is a figure which schematically shows the seat belt apparatus which is an example of embodiment provided with the seat belt retractor concerning this invention.

[0032] Such as figure 1 As shown, the safety belt device 1 of this example is basically the same as the conventionally known three-point safety belt device. In the figure, 1 is a seat belt device, 2 is a vehicle seat, 3 is a seat belt retractor located near the vehicle seat 2, 4 is wound on the seat belt retractor 4 in a pull-out manner and The seat belt anchor 4a at the front end is fixed to the floor of the vehicle body or the seat belt on the vehicle seat 2, and 5 is a guide for guiding the seat belt 4 pulled out from the seat belt retractor 3 to the occupant's shoulder direction. 6 is a tongue that is slidably supported on the safety belt 4 guided from the guide holder 5, and 7 is fixed on...

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Abstract

The purpose of the invention is to have a pretensioner operate even more efficiently while shortening the length of a pipe as much as possible to effectively reduce the weight, as well as minimize the restrictions to the shape of a guide member, and enable cheaper manufacture of a retractor. An installation section (17c) consisting of a protrusion is provided at an end section (17a) of the pipe (17) that holds a plurality of balls which are force transmission members. Furthermore, an installation groove (18a) consisting of a recess is provided in a guide member (18) that comprises a guide surface (18c) which guides the balls. Moreover, the installation section (17c) is fitted into the installation groove (18a), with the result that the pipe (17) is installed in the guide member (18) which is mounted on a frame, the outer circumference of the pipe (17) being in contact with the guide member (18). Since the guide member (18) is located on the outer circumference of the pipe (17), it is possible to make the pipe (17) short.

Description

technical field [0001] The present invention relates to the technical field of a seat belt retractor including a pretensioner and the technical field of a seat belt device for a vehicle. Background technique [0002] Conventionally, various seat belt retractors equipped with pretensioners have been developed as seat belt devices installed in vehicles such as automobiles. Regarding this type of pretensioner, in an emergency such as when a vehicle is collided with a deceleration greater than the normal deceleration, the reaction gas generated by the gas generator is initially used to make the reel of the seat belt retractor to the direction of rotation. The seat belt winding direction is rotated, and the seat belt is wound by the spool. As a result, the slack of the seat belt can be quickly eliminated and tension can be generated in the seat belt, so as to improve the restraint force on the occupant. [0003] As an example of a conventional pretensioner, there is known a pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R22/46
CPCB60R22/4628B60R2022/3402B60R2022/4642
Inventor 盐谷昌广井浦祐介
Owner JOYSON SAFETY SYST JAPAN KK
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