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Safety belt winder

A technology for a winding device and seat belt, which is applied in the directions of seat belts, belt tensioners, transportation and packaging in vehicles, etc., can solve the problems of deterioration in processability and assembly, increase in cost, and inability to remove the W sensor.

Inactive Publication Date: 2004-06-16
KK TOKAI RIKA DENKI SEISAKUSHO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Therefore, the position of the internal tooth 118 engaged with the claw 112 may make the sensor release angle α larger than the V gear rotation angle, and the W sensor cannot be released.
In addition, setting the maximum value of the W sensor release angle α to be smaller than the reverse angle of the V gear requires excessive dimensional accuracy and assembly accuracy, resulting in deterioration of processability and assembly, and increased cost.
In addition, the same problem also exists in the V sensor unit 120

Method used

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Examples

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Embodiment Construction

[0052] Below, refer to figure 1 Turning to FIG. 7 , the seat belt winding device 10 according to the embodiment of the present invention is described.

[0053] figure 1 In , the overall structure of the seat belt take-up device 10 of this embodiment is shown with a sectional view. figure 2 and image 3 , shown in side view from figure 1 The seat belt winding device 10 seen in the C-C direction and the D-D direction of . figure 1 The direction A and the direction B marked in Fig. 9 represent the pull-out direction and the winding direction of the safety belt respectively.

[0054] Such as figure 1 As shown, the seat belt retractor 10 is provided with a frame 12 . The frame 12 has a pair of opposing leg pieces 12a, 12b and a back piece 12c connecting the leg pieces, and is formed in a substantially U-shape when viewed from a planar view. The back sheet 12c protrudes downward, and its lower end is fixed to the vehicle body with bolts.

[0055] On the leg pieces 12a,...

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PUM

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Abstract

In a webbing retractor, when a pawl engages with an internal tooth, a lock plate is guided, via a V gear , to a position at which engagement with a ratchet tooth is possible, and thereafter, the lock plate self-locks. When the V gear reversely rotates by a predetermined amount in accordance with this self-locking, engagement of the pawl and the internal tooth is cancelled. An engagement surface of the internal tooth corresponds to a locus of swinging of the pawl. Engagement with the pawl is cancelled at a smallest V gear reverse rotation angle.

Description

technical field [0001] The present invention relates to a seat belt take-up device capable of preventing a seat belt from being pulled out when a vehicle decelerates rapidly, and more particularly to a seat belt take-up device capable of pulling out a seat belt again after the seat belt is stopped from being pulled out. Background technique [0002] In a general seat belt winding device, the seat belt is wound in layers on a cylindrical winding shaft, and the winding shaft is supported by a frame, which is roughly U-shaped when viewed from a plane, and is fixed to the vehicle. Usually, the winding shaft can rotate freely, and the seat belt can be wound and pulled out freely. In addition, seat belt retractors use seat belt sensor retractors (WSIR) or vehicle body sensor retractors (VSIR) in order to sense sudden deceleration of the vehicle or sudden seat belt pull-out and block the pull-out of the seat belt. [0003] Below, refer to Figure 10A and Figure 10B , explaining ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R22/38B60R22/36B60R22/40B60R22/415
CPCB60R22/415B60R22/36
Inventor 角屋敷晃
Owner KK TOKAI RIKA DENKI SEISAKUSHO