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Seatbelt retractor and seatbelt apparatus using the same

A seat belt retractor and seat belt technology, which is applied in the direction of seat belts, belt retractors, transportation and packaging, etc. in the car, to achieve the effects of simplifying the structure, suppressing the action sound, and simplifying the structure

Inactive Publication Date: 2006-12-13
TAKATA CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, since the cover 9 does not move, and the rotating shaft 12 is movable (rotating), there is a friction sound generated between the cover 9 and the rotating shaft 12 during the rotation of the rotating shaft 12, which becomes the action of the transmission gear mechanism. sound problem

Method used

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  • Seatbelt retractor and seatbelt apparatus using the same
  • Seatbelt retractor and seatbelt apparatus using the same
  • Seatbelt retractor and seatbelt apparatus using the same

Examples

Experimental program
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Embodiment Construction

[0028] Next, preferred modes for implementing the present invention will be described with reference to the drawings.

[0029] figure 1 is a diagram schematically showing an example of an embodiment of the seat belt retractor of the present invention; figure 2 It is a partially enlarged cross-sectional view showing a part of the transmission mechanism in the seat belt retractor of this example in an enlarged manner.

[0030] Such as figure 1 As shown, the seat belt retractor 1 of this example generally includes: a frame 2; a seat belt 3 that constrains the occupant if necessary; a reel 4 that can be pulled out to wind the seat belt 3; On one side of the frame 2, it operates when a large deceleration greater than a specified deceleration occurs during a collision, so as to prevent the reel 4 from rotating in the direction of pulling out the seat belt; the deceleration detection device (vehicle sensor) 6 applies a regulation to the vehicle. When the deceleration above the ...

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PUM

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Abstract

A motor-driven seatbelt retractor is provided in which generation of an operation noise of a power transmission mechanism can be minimized when the power transmission mechanism is operated. In a power transmission gear mechanism 8, a gear 11 which is in the proximity of a cover 9 is supported on a revolving shaft 12 so as to be capable of rotating integrally therewith, while it can be moved in a direction of an axis of the revolving shaft 12. A ring-shaped stopper 14 is fitted to an annular groove 13 provided on the revolving shaft 12 on the cover 9 side with respect to the gear 11 so as not to be capable of moving in the direction of the axis of the revolving shaft 12. The stopper 14 prevents the axial movement of the gear 11 toward the cover 9 during rotation of the gear 11 and hence the gear 11 does not come into contact with the cover 9. A space 20 is formed between an opposing end 12a of the revolving shaft 12 and the cover 9, and with this space 20, the revolving shaft 12 is prevented from coming into contact with the cover 9.

Description

technical field [0001] The present invention relates to a seat belt retractor which is mounted on a vehicle such as an automobile and transmits the driving torque of a motor to a reel via a transmission mechanism to wind up a seat belt for restraining and protecting an occupant, and a seat belt using the seat belt retractor The technical field of the device. Background technique [0002] The seat belt device mounted on vehicles such as automobiles protects the occupants by restraining the occupants with the seat belts to prevent the occupants from being ejected from the seat during an emergency such as a collision when a large deceleration acts on the vehicle. This seat belt device has a seat belt retractor that always urges the spool around which the seat belt is wound in the seat belt winding direction, and at the aforementioned emergency, an emergency locking mechanism (ELR mechanism) work to lock the rotation of the spool in the pull-out direction, thereby preventing th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R22/34
CPCB60R22/44B60R2022/444B60R2022/4473
Inventor 田中康二犬塚浩二
Owner TAKATA CORPORATION
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