Seatbelt retractor and seatbelt system having the same

A technology of seat belt retractor and seat belt, which is applied in the directions of seat belts, belt tensioners, transportation and packaging in the car, can solve the problems of passengers being unable to wear seat belts comfortably, and achieve comfortable wearing actions and restrain inconvenience. Comfortable, heaviness-relieving effect

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

AI Technical Summary

Problems solved by technology

[0006] However, when the electric motor is driven by the occupant pulling out the seat belt as described above, since the spool and the electric motor are directly connected through the reduction mechanism, when the occupant pulls out the seat belt, the occupant will temporarily feel the pulling out of the seat belt. discomfort caused by heavy feeling
Therefore, the occupant cannot comfortably perform the wearing action of the seat belt.

Method used

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  • Seatbelt retractor and seatbelt system having the same
  • Seatbelt retractor and seatbelt system having the same
  • Seatbelt retractor and seatbelt system having the same

Examples

Experimental program
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Embodiment Construction

[0023] Next, preferred modes for implementing the present invention will be described with reference to the drawings.

[0024] figure 1 It is a figure which schematically shows an example of the seat belt apparatus which has one embodiment of the seat belt retractor of this invention. Here, in the following description, left and right refer to left and right in the drawings used in each description section.

[0025] Such as figure 1 As shown, the seat belt device 1 of this example includes the following components: a seat belt retractor 3, which is fixed on the B-pillar 2 of the vehicle body, etc., and is driven by a motor; a seat belt 6, which is retracted from the seat belt The seat belt anchor 3 is pulled out, and the seat belt anchor 4 at the front end is fixed on the floor of the vehicle body or on the vehicle seat 5; the guide anchor 7, for example, is arranged on the vehicle body such as the center pillar, and guides toward the shoulder of the occupant C The seat bel...

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PUM

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Abstract

In order to provide a motor-driven seatbelt retractor in which the temporary weight during withdrawing a seatbelt is reduced so that uncomfortability can be reduced, when a seatbelt is off, projections (21) of an internal gear (17) are placed in a circumferential center between adjacent projections (25) by the spring force of springs (26, 27). When a spool (13) rotates in the belt withdrawing direction, the internal gear (17) also rotates in the belt withdrawing direction. This arrangement disables the transmission of power of a reduction mechanism (15) so as to cut off the direct connection between the spool (13) and an electric motor connected to a sun gear (16), so that the temporary weight during withdrawing the seatbelt can be reduced. When the internal gear (17) rotates at a predetermined angle, the projections (21) come into contact with the projections (25) to thereby stop the rotation of the internal gear (17). This enables the transmission of power of the reduction mechanism (15), whereby the spool (13) and the electric motor are brought into direct connection via the reduction mechanism (15).

Description

technical field [0001] The present invention relates to the technical field of a seat belt retractor and a seat belt device having the seat belt retractor. The seat belt retractor is used for seat belts equipped on vehicles such as automobiles and using seat belt restraints to protect occupants. The device rotates the reel through the driving force of the motor, so as to wind up and pull out the seat belt. Background technique [0002] In the past, the seat belt device equipped on automobiles and other vehicles, in the event of a large deceleration of the vehicle in the event of a vehicle collision, restrains the occupant with the seat belt to prevent the occupant from inertial movement from the seat, thereby protecting crew. The safety belt device is provided with a safety belt retractor, which uses a reel to wind up and pull out the safety belt, and prevents the safety belt from being pulled out in an emergency. [0003] Among such seatbelt retractors, conventionally, a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R22/44
CPCB60R22/44B60R2022/4473B60R22/46
Inventor 野村康哲
Owner TAKATA CORPORATION
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