Head protecting airbag device

A head-protecting airbag device comprising an airbag cover mountable in a vehicle for covering a folded airbag housed from a rear pillar portion to at least a roof side rail portion of the vehicle body, said airbag cover comprising a rear pillar garnish mountable on the rear pillar portion, said rear pillar garnish comprising a body portion and a door portion molded integrally with said body portion, said body portion having a mounting seat mountable on said rear pillar, said door portion being arranged on an upper end side of said garnish and constructed and arranged to open upon inflation and expansion of the airbag,

• wherein portions of said door portion and said mounting seat of said body portion in the vicinity of said door portion comprises at least one thermoplastic elastomer, and
• wherein a remaining portion of said door portion and said mounting seat not in the vicinity of said door portion comprises at least one hard synthetic resin,
• wherein said mounting seat comprises a clip portion insertable along an inserting direction into a retaining hole of the vehicle body to establish first and second retaining states, wherein in the first retaining state said clip portion cannot be pulled away from the retaining hole in an opposite direction to the inserting direction to extract said clip portion from the retaining hole, and wherein in the second retaining state clip portion is inserted farther in the inserting direction into the inserting hole and is extractable from the vehicle body by pulling said clip portion from the retaining hole in the opposite direction, wherein said clip portion comprises:
• a rigid core member including a neck portion protruding from the back side of said airbag cover and a head portion arranged at a leading end of said neck portion, said head portion having a root portion, a leading end, and said head portion being larger in width size than said neck portion;
• and
• an elastically deformable cap having first and second grooves and a fixedly retained portion on a leading end side of said first and second grooves, said cap being mountable around said core member into a mounted position in which said cap covers said neck portion and said root portion of said head portion and in which said first groove is positioned in closer proximity to said leading end of said head portion than said second groove, which is positioned at a root portion of said neck portion,
• wherein in the first retaining state a circumferential edge of the retaining hole is fitted in said first groove and said fixedly retained portion is retained on the back side of the retaining hole such that head portion of said core member is not extractable by movement of said head portion in the opposite direction,
• wherein in the second retaining state the circumferential edge of the retaining hole is fitted in said second groove, and said fixedly retained portion has an inner side face sufficient in size to permit said head portion of said core member to be inserted therein and extracted from said cap, and
• wherein in the mounted state, said inner side face of said fixedly retained portion is spaced from said neck portion of said core member by a small clearance sufficient to receive inward deformation of said fixedly retained portion caused by said insertion of said fixedly retained portion through the retaining hole.