Seat belt retractor and seat belt apparatus employing the same

A technology of seat belt retractor and seat belt, which is applied in the direction of seat belt, belt tensioner, transportation and packaging in the car, can solve the problem of difficult to effectively deal with various combination requirements, achieves simple structure, prevents end-to-end, etc. lock effect

Inactive Publication Date: 2009-03-11
TAKATA CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the size of the seat belt retractor is increased by increasing the size of the cam plate, it is difficult to effectively respond to various combinations of the cam groove formation range of the cam plate and the rotation range of the swing preventing member.

Method used

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

Examples

Experimental program
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Embodiment Construction

[0037] Next, preferred modes for implementing the present invention will be described with reference to the drawings.

[0038] figure 1 It is a figure which schematically shows the seat belt apparatus which has an example of embodiment of the seat belt retractor of this invention.

[0039] like figure 1 As shown, the seat belt device 1 of this example is the same as the conventionally known three-point safety belt device utilizing a seat belt retractor, including: a seat belt retractor 3 fixed on the vehicle body near the vehicle seat 2; The seat belt 4 is pulled out from the seat belt retractor 3, and the seat belt anchor 4a at the front end is fixed on the floor of the vehicle body or the vehicle seat 2; the guide anchor 5 is guided from the safety belt toward the shoulder of the occupant. A seat belt 4 pulled out from the belt retractor 3; a tongue 6 supported freely slidably on the seat belt 4 guided from the guide holder 5; and a buckle 7 fixed to the floor of the vehic...

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PUM

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Abstract

The inventive safety belt retractor and safety belt device including the safety belt retractor can effectually prevent end-locking caused by pulling out a sensor via the safety belt, and can form a structure preventing the end-locking with a smaller and compacter configuration. When an eccentric gear (14) rotates along with retraction or pull-out of the safety belt, a pair of stop components (45, 46) are controlled by a cam slot (49) provided on a casing (10), guide slots (47, 48) of the eccentric gear (14) along an ELR-ALR switching mechanism is movable in a diameter direction of a reel. At the time of approximately totally retracting the safety belt, the stop components (45, 46) are located in large-diameter side arc slots (49c, 49d), thus pressing inner circumference of a ring section (12b) to prevent swing of inertia wheels (12). Besides, in case of pulling out the completely-retracted safety belt by a prescribed amount, the stop components (45, 46) are located in small-diameter side arc slots (49a, 49b), thus not pressing the inner circumference of the ring section (12b) to enable free swing of the inertia wheels (12).

Description

technical field [0001] The present invention relates to the technical field of a seat belt device mounted on a vehicle such as an automobile and restraining an occupant by a seat belt pulled out from a seat belt retractor. In particular, it relates to a seatbelt retractor having at least the following seatbelt withdrawal sensor (so-called webbing sensor) and capable of preventing an end lock caused by swinging of the seatbelt withdrawal sensor when all the retracted seatbelts are fully wound. In the technical field of the seat belt retractor and the seat belt device having the seat belt retractor, the seat belt pullout sensor starts to pull out the seatbelt at a speed faster than the normal seatbelt pullout speed when the seatbelt is worn (that is, A pull-out acceleration greater than the normal pull-out acceleration when the seat belt is worn) prevents the seat belt from being pulled out when the seat belt is pulled out quickly. Background technique [0002] In the convent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R22/41
CPCB60R22/41B60R22/405
Inventor 平松幸治金森靖久木正雄
Owner TAKATA CORPORATION
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