IGNITER ASSEMBLY, AND MOLDING METHOD OF HOLDING PART

• Main Authors: UKITA SHINICHIRO, NODA AKIFUMI, FUKUMOTO KENJI
• Format: Patent
• Language: English; Japanese
• Published: 10.09.2020
• Subjects: PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

To provide an igniter assembly that, when actuating an igniter, suppresses malfunction resulting from occurrence of cracks and breakage in a holding part for fixing the igniter to a collar.SOLUTION: An igniter assembly comprises an igniter, a collar, and a holding part. The igniter includes: a cup body having a cylindrical peripheral wall, and a lid wall for closing one end of the peripheral wall; and a closing part for defining a housing space of a combustion agent together with the cup body. The peripheral wall is divided in an axial direction of the peripheral wall into a contact area contacting the closing part, and a non-contact area not contacting the closing part. The holding part includes: a base part covering the periphery of the contact area; and a surrounding wall formed continuously with the base part, and surrounding the non-contact area. On the holding part, between a first site containing at least a part of the base part, and a second site being a site on a discharge direction side of the first site and containing a tip of the surrounding wall, a fragile part is formed so that the second site deforms outward in a radial direction more preferentially compared to the first site, when a load is applied to the surrounding wall upon actuation of the igniter.SELECTED DRAWING: Figure 2 【課題】点火器の作動時に、点火器をカラーに固定するための保持部に亀裂や破損が生じることによる不具合を抑制可能な点火器組立体を提供する。【解決手段】点火器組立体は、点火器とカラーと保持部とを備え、点火器は、筒状の周壁と周壁の一端を閉塞する蓋壁とを有するカップ体とカップ体と共に燃焼剤の収容空間を画定する閉塞部とを有し、周壁は、該周壁の軸方向において、閉塞部に接触した接触領域と閉塞部に接触しない非接触領域とに区分され、保持部は、接触領域の周囲を覆うベース部と、ベース部に連続して形成され、非接触領域を包囲する包囲壁と、を備え、保持部における、ベース部の少なくとも一部を含む第１部位と、第１部位よりも放出方向側の部位であって包囲壁の先端を含む第２部位と、の間には、点火器が作動することで包囲壁に荷重が掛かったときに、第２部位が第１部位と比べて優先的に径方向外向きに変形するように、脆弱部が形成されている。【選択図】図２