Pyrotechnic gas generator and corresponding childcare device

A gas generator, children's technology, applied in the field of child care, can solve the problem of not providing accuracy

Active Publication Date: 2017-09-26
SHANGHAI DOREL JUVENILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Documents describing airbags for car seats generally provide for the presence of means for detecting impact forces which control the triggering of gas generating means intended for airbag inflation, but do not provide information on these gas generating means any precision with respect to the operation (and specifically with regard to the manner in which the gas is delivered)

Method used

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  • Pyrotechnic gas generator and corresponding childcare device
  • Pyrotechnic gas generator and corresponding childcare device
  • Pyrotechnic gas generator and corresponding childcare device

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Embodiment Construction

[0045] Accordingly, the present invention proposes a pyrotechnic gas generator for the inflation of one or more inflatable airbags (“airbags”) intended to be provided on a childcare device.

[0046] The embodiments described below relate to child car seats.

[0047] However, those skilled in the art will appreciate that the same approach can readily be used for other child care devices when they have one or several inflatable airbags.

[0048] Such as figure 1 As seen in FIG. 2 , a child car seat 11 generally includes a seating surface 111 and a seat back 112 at which a headrest 113 is supported that may be movable in height relative to the seat back 112 .

[0049] The child is held in this seat 11 using a safety belt 12 and a saddle 123, which comprises two shoulder straps 121 and 122, which are intended to be placed on each of the child's shoulders and span the The child's body extends generally vertically.

[0050] The two shoulder straps 121 and 122 and saddle 123 are i...

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PUM

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Abstract

The invention relates to a gas generator (2) for an air bag/air bags, comprising: at least one pyrotechnic charge (23) and means (25) for igniting/activating said charge (23) which are triggered when a predetermined condition is met, a vessel (21) which contains a pressurised gas (211) and the mouth of which is closed by means of a sealing element (211), and a gas exhaust opening (222) which communicates with at least one air bag (141, 142). According to the invention, the gas generator (2) further comprises a firing pin (24) which is located in a pipe (221), into which the gas exhaust opening (222) leads, and which, when the predetermined condition is met, can first be moved towards the sealing element (211) from an initial position into an open position by means of the combustion gases (231) generated by the pyrotechnic charge (23) so as to pierce said sealing element by means of piercing means (241) supported by said firing pin (24), wherein it is possible to bring said firing pin (24) back into the initial position by means of the pressurised gas (211) stored in the vessel (21) once the sealing element (211) has been pierced, the pressurised gas (211) escaping from the vessel (21) being directed towards said gas exhaust opening (222).

Description

technical field [0001] The field of the invention is childcare, and more specifically, devices capable of receiving children, in particular, in fixed positions. Background technique [0002] The invention relates in particular to a car seat intended to be fixed to a seat or bench of a motor vehicle. It may also be implemented in devices such as strollers, cabins, bicycle seats, and the like. [0003] More precisely, the present invention relates to the implementation of inflatable bags or airbags or elements for safety, commonly referred to as "airbags", wherein in the event of an impact force (in an accident situation) The inflation is automatically triggered to protect a child placed in the child care device. [0004] The use of "airbags" is well known, especially in the automotive field. In recent years, many other applications have been considered, and in particular for child car seats. [0005] For example, a car seat may contain two airbags, housed on or in the sho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/268B60R21/274
CPCB60R21/268B60R21/274B60R21/18B60R21/2072B60R22/28
Inventor 尼古拉斯·加尼尔赫迦·拉贝奥尼
Owner SHANGHAI DOREL JUVENILE CO LTD
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