Seat belt retractor and seat belt apparatus comprising the same

A technology of seat belt retractor and seat belt, which is applied in the directions of seat belts, belt tensioners, and vehicle safety arrangements in vehicles, can solve problems such as work constraints, and achieve the effect of uniform energy absorption.

Inactive Publication Date: 2008-05-07
JOYSON SAFETY SYST JAPAN KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the work of the 2EA agency began to be restricted

Method used

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  • Seat belt retractor and seat belt apparatus comprising the same
  • Seat belt retractor and seat belt apparatus comprising the same
  • Seat belt retractor and seat belt apparatus comprising the same

Examples

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Embodiment Construction

[0063] Hereinafter, the best mode for carrying out the present invention will be described using the drawings.

[0064]FIG. 1 is a diagram schematically showing an example of an embodiment of a seatbelt retractor according to the present invention, and a part of the structure of the retractor is omitted. Moreover, in the description of each example of the following embodiment, the same reference numerals are used to denote the same structural elements in different examples, and the same reference numerals are used to denote the seatbelt retractor of the conventional example shown in FIG. 10 above. The structural elements in 1 are the same as those in 1, and detailed description thereof will be omitted.

[0065] As shown in Fig. 1, the safety belt retractor 1 of this example is the same as the safety belt retractor 1 of the conventional example shown in Fig. Reel 4, torsion bar 7 (first EA mechanism; corresponding to the first seat belt load limiting mechanism of the present i...

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PUM

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Abstract

The present invention provides a seat belt retractor and a seat belt device containing said seat belt retractor, and the limitation load of any kind of seat belt can be set corresponding to the emergency and the seat belt retractor can be minimized and the second EA mechanism (41) which has a simple structure can work simply. The second EA mechanism (41) positioned on the end of the spool (4) arranged coaxially with the spool (4) includes an energy absorber supporting member (43) positioned on the end of the spool (4) with ratchet teeth (43b); an energy absorbing plate (42) positioned between the energy absorber supporting member (43) and the spool (4), and a lever (44) which is engaged to the ratchet teeth (43b). Normally, the lever (44) is not allowed to engage the ratchet teeth (43b) of the energy absorber supporting member (43) not to allow the operation of the second EA mechanism (41). When the operation of the second EA mechanism (41) is required in the event of an emergency, the lever (44) pivots to engage the ratchet teeth (43b), whereby the second EA mechanism (41) starts its EA operation.

Description

technical field [0001] The present invention relates to a technology of a seat belt retractor capable of winding and pulling out a seat belt. In particular, it relates to a seat belt retractor equipped with an energy absorbing mechanism (abbreviated as EA mechanism hereinafter) and a seat belt device having the same. When the vehicle deceleration prevents the seat belt from being pulled out in an emergency, the load applied to the seat belt is limited by the torsional deformation of the torsion bar and other energy absorbing components, and the force applied to the occupant is eased and absorbed. energy. Background technique [0002] Conventionally, seat belt devices installed in vehicles such as automobiles prevent the occupant from flying out of the seat by restraining the occupant with the seat belt in the emergency described above. [0003] Such a seat belt device includes a seat belt retractor that winds up the seat belt. In this seat belt retractor device, the seat ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/01B60R22/41
CPCB60R22/3413B60R22/4676
Inventor 平松幸治
Owner JOYSON SAFETY SYST JAPAN KK
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