Seat belt retractor and seat belt device using the same

A technology of seat belts and retractors, which is applied in the directions of seat belts, belt retractors, transportation and packaging, etc. in the car, which can solve problems such as difficult reel rotation speed, reel seat belt winding torque, etc., to reduce mechanical deviation or change parameters, reliable switching, and the effect of reducing power consumption

Inactive Publication Date: 2006-05-03
TAKATA CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, although the seat belt retractor shown in Patent Document 2 has two transmission paths with different reduction ratios as transmission paths, it has only one transmission path with a fixed reduction ratio for directly transmitting the rotational torque of the motor to the transmission path. on the scroll
Therefore, when th

Method used

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  • Seat belt retractor and seat belt device using the same
  • Seat belt retractor and seat belt device using the same
  • Seat belt retractor and seat belt device using the same

Examples

Experimental program
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Embodiment Construction

[0038] The best mode for carrying out the present invention will be described below using the drawings.

[0039] figure 1 is a partially exploded perspective view showing a part of one embodiment of the seat belt retractor of the present invention, figure 2 It is a partially exploded perspective view showing the remainder of one embodiment of the present invention, image 3 Indicated with the locker and base with return spring removed figure 1 and figure 2 Diagram of the seat belt retractor shown. Moreover, in figure 1 and 2 , by adjusting respectively figure 1 The straight line X in 1 、X 2 、X 3 、X 4 and figure 2 The straight line Y in 1 , Y 2 , Y 3 , Y 4 , forming the seat belt retractor in this example. And in the following description, unless otherwise specified, the "left" and "right" used in the description are the "left" and "right" in the figure, and the "clockwise" and "counterclockwise" used in the description "Clockwise direction" means "clockwise...

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PUM

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Abstract

The present invention provides a seat belt retractor and a seat belt device capable of reducing the electric current consumption of the motor and controlling the motor more simply, and realizing two winding performances of rapidly winding the seat belt and winding the seat belt with a high torque . In the state where the clutch pawl (49) and the internal gear (30) are not engaged, the clutch gear (43) is meshed with the planet carrier gear (31) by making the motor rotate forward in the direction of winding the safety belt. Thus, the low reduction ratio transmission mode is set, and the seat belt can be wound at high speed and with low torque. When the seat belt is tensioned and the load of the seat belt rises, the clutch pawl (49) can be engaged with the internal gear (30). Moreover, when the motor current increases and exceeds the set value, the motor is reversed, and the clutch gear (43) is separated from the transmission gear (31). As a result, the transmission mode with a high reduction ratio is set, and the seat belt is wound at a low speed and with a high torque.

Description

technical field [0001] The present invention relates to a seat belt retractor equipped on a motor vehicle, an airplane, a ship, etc., on which passengers ride and move (hereinafter collectively referred to as a vehicle) and is wound by a motor to constrain and protect the seat belt of the passenger, and the use of the seat belt retractor. A seat belt device of a seat belt retractor, in particular, relates to a seat belt retractor capable of efficiently winding a seat belt by utilizing limited electric power consumption of a motor, and a seat belt device using the seat belt retractor. Background technique [0002] Conventionally, a seat belt device equipped on a vehicle such as a motor vehicle includes at least a seat belt retractor for winding a seat belt, a tongue slidably supported on the seat belt, and a buckle capable of being engaged with the tongue. In the state of wearing the seat belt with the tongue fastened on the buckle, when a collision occurs and a large deceler...

Claims

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Application Information

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IPC IPC(8): B60R22/343
CPCB60R22/46B60R22/4676B60R2022/287B60R2022/444B60R2022/4666B60R2022/468
Inventor 田中康二犬塚浩二
Owner TAKATA CORPORATION
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