초록 ▼

A novel diffusor cup forms part of an inflator device which is used to inflate an airbag. The novel structure of the diffusor cup substantially reduces the deflection thereof during deployment of the airbag. This improves the consistency and reliability of inflating the airbag with a proper volume o

A novel diffusor cup forms part of an inflator device which is used to inflate an airbag. The novel structure of the diffusor cup substantially reduces the deflection thereof during deployment of the airbag. This improves the consistency and reliability of inflating the airbag with a proper volume of gas. The diffusor cup is attached to a bottle which houses a pressurized gas and the bottle and diffusor cup are mounted within a housing module. The diffusor cup is formed from a first wall which bears against an end plate of the housing module, a second wall which depends from the first wall and joins with the bottle, and a third wall which depends from the opposite end of the first wall. The second wall is formed from a truncated cone such that it tapers from the first wall to the bottle. A stud is mounted within the diffusor cup walls and is mechanically secured thereto by a plurality of graduated steps formed on the stud and by a back shear. A threaded portion of the stud secures the diffusor cup to the end plate by a nut. When internal pressures from expansion of the gas as the airbag is deployed are applied to the stud, the stud transfers the load formed by the pressures to the second wall, thereby preventing substantial deflection or distortion of the diffusor cup.

대표청구항 ▼

[ The invention claimed is:] [1.] A diffusor cup for use with an inflator device in an airbag system, the inflator device preferably having a bottle housing a gas attached to said diffusor cup, said inflator device being enclosed within a housing module having opposite end plates, said diffusor cup

[ The invention claimed is:] [1.] A diffusor cup for use with an inflator device in an airbag system, the inflator device preferably having a bottle housing a gas attached to said diffusor cup, said inflator device being enclosed within a housing module having opposite end plates, said diffusor cup comprising:a first wall for bearing against one of the end plates of the housing module, a second wall which depends from said first wall and joins with the bottle, said second wall being formed from a truncated cone such that said second wall tapers from said first wall to the bottle; and a stud mounted within said first and second walls, said stud being mechanically secured to said first and second walls and having structure thereon capable of securing said stud to the end plate.