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Retractor pretensioner assembly

A technology of pretensioner and seat belt pretensioner, which can be applied to belt tensioners, vehicle parts, seat belts in vehicles, etc., and can solve problems such as increased weight and cost

Pending Publication Date: 2020-11-10
AUTOLIV ASP INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this adds weight and cost and requires a higher capacity gas generator

Method used

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Examples

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Embodiment Construction

[0039] The following description is merely exemplary in nature and is in no way intended to limit the disclosure or its application or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0040] figure 1 A vehicle seat 10 and seat belt assembly 12 for a vehicle are shown according to an exemplary form of the present disclosure. The harness assembly 12 includes a harness webbing 14 having a shoulder belt portion 16 extending from an upper guide loop or anchor point 18 to a latch plate 20 and a lap portion 22 extending from the latch plate 20 to a lower anchor point 24 . The latch plate 20 may include a loop portion 26 through which the webbing 14 extends. The latch plate 20 is insertable into the seat belt buckle 28 to lock and unlock the seat belt assembly 12 . A belt buckle cable or strap 30 secures the belt buckle 28 to a portion of the vehicle frame, either directly or in coopera...

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Abstract

The theme of the invention is to provide a retractor pretensioner assembly. A seatbelt pretensioning retractor assembly for use in a vehicle is provided. The seatbelt pretensioning retractor assemblyincludes a housing adapted for being mounted to a frame and having an interior cavity, a pretensioner tube having an arcuate and curved shape, a pretensioner wheel rotatably mounted to the housing andfixedly coupled to a spindle, a pretensioner rod disposed within the tube and a guide plate having a guide portion and a rod guide. The pretensioner rod engages with the pretensioner wheel during pretensioning. In addition, the pretensioner wheel includes a body portion, a pair of flanges radially extending from the body portion and a plurality of vanes with the cavities formed between adjacent two of the plurality of vanes.

Description

technical field [0001] The present disclosure relates to seat belt restraint devices for restraining occupants of a vehicle, and more particularly to devices for pretensioning seat belts. Background technique [0002] The descriptions in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] Seat belt restraint systems for restraining occupants in vehicle seats play an important role in reducing occupant injuries in vehicle crash situations. Conventional so-called "3-point" seat belt restraint systems typically have a lap belt section extending across the seat occupant's pelvis and a shoulder belt section spanning the upper body, the two sections being fastened together by a continuous length of belt webbing or form. The lap belt section and the shoulder belt section are connected to the vehicle structure by fastening points. [0004] Belt retractors are often provided to store the belt webbing and m...

Claims

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Application Information

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IPC IPC(8): B60R22/46
CPCB60R22/4628B60R22/46B60R22/4652B60R2022/4642B60R2022/3402
Inventor 王斌克里斯托弗·D·霍尔乔恩·E·伯罗肯尼士·H·科伦多佛理查德·W·科宁
Owner AUTOLIV ASP INC
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