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Seatbelt retractor

一种安全带、收缩器的技术，应用在车内安全带、皮带收紧器、皮带控制系统等方向，能够解决阻力等问题，达到耐用强度提高、提高自由度、好冲击能量的效果

Inactive Publication Date: 2005-03-23
TAKATA CORPORATION
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0011] However, as in the seat belt retractor disclosed in the aforementioned Patent Document 3, since the motor is directly connected to the reel through its power transmission system, after the locking mechanism is activated as described above, the reel rotates in the belt pulling direction and the torsion bar is pulled out. When twisting, the spool experiences some degree of resistance from the motor and the power transmission system

Method used

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Examples

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Embodiment Construction

[0030] Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.

[0031] figure 1 It is a cross-sectional view schematically showing an embodiment of the seat belt retractor of the present invention, and Fig. 2 is a schematic representation figure 1 An exploded perspective view of the example seat belt retractor, image 3 for more detailed representation figure 1 An exploded perspective view of a portion of the seat belt retractor shown.

[0032] Such as Figure 1 to Figure 3 As shown, the safety belt retractor 1 in this example is an ELR, and is roughly supported by a U-shaped chassis 2 and a safety belt 3 between the two side walls of the U-shaped chassis 2, and is wound safely. The reel 4 of the belt 3, the deceleration sensor 5 activated in response to the large vehicle deceleration occurring at the aforementioned emergency moment, the lock mechanism 6 that at least prevents the reel 4 from rotating in the dire...

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PUM

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Abstract

In order to more effectively absorb shock energy by a torsion bar included in a motor-driven emergency locking retractor, the power of a motor (12) is transmitted to a spool (4) through a connecting gear (27) of a power transmission mechanism (21), a pinion gear (28), a locking base (17), the torsion bar (7), and a bushing (20), and the spool (4) rotates so as to control the tension of a belt (3). Also, activation of deceleration-sensing means (5) causes a pawl (16) to rotate and to engage with internal teeth (30) formed on the sidewall of a frame (2), thereby preventing rotation of the locking base (17). Thus, the torsion bar (7) is twisted, and only the spool (4) rotates. In this state, a motor-driving unit (13) is disposed close to a locking mechanism (6) of the torsion bar (7), and the spool (4) rotates without receiving a resistance from the motor-driving unit (13), whereby shock energy is easily transmitted to the torsion bar (7).

Description

technical field [0001] The present invention relates to the technical field of a seat belt retractor for constraining and protecting occupants in vehicles such as automobiles, in particular to a belt retractor capable of controlling the belt tension of the seat belt by rotating the reel, and at the same time, in such as conflicts, etc. Seat belt retractor of the energy absorbing mechanism (hereinafter also referred to as EA mechanism) that absorbs the impact energy acting on the occupant through the seat belt when a large force is exerted on the vehicle to prevent the seat belt from being pulled out at an emergency such as when the vehicle is decelerating. technology field. Background technique [0002] A seat belt retractor mounted on a seat of a vehicle such as an automobile includes a seat belt retractor for winding a seat belt with a spool. Conventionally, various emergency stop type retractors (hereinafter also referred to as ELR) have been developed as such retractors...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R22/28B60R22/34B60R22/46B60R22/48
CPCB60R22/3413
Inventor 犬塚浩二田中康二
Owner TAKATA CORPORATION
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