Abstract: A gas generator includes a cylindrical partition wall portion including a plurality of gas passage holes through which a gas generated as a result of burning of a gas generating agent passes. Two sealing tapes in a form of a band are contiguously bonded to the partition wall portion such that a direction of extension thereof matches with a circumferential direction of the partition wall portion and each one of a pair of end portions located in each direction of extension is layered on an adjacent sealing tape. The gas passage hole is closed by a layered bonding region which is a portion where adjacent sealing tapes are layered on each other, and the gas passage hole is closed by a non-layered bonding region which is a portion where adjacent sealing tapes are not layered on each other.

Abstract: A gas generator includes a bottom plate part which is a part of a housing, a cup-shaped member accommodating a transfer charge, a cylindrical filter accommodated in the housing, and an annular first pad member situated in a part on the side of the bottom plate part of a combustion chamber. The cup-shaped member is arranged to project toward inside the combustion chamber, and has a first extension part extending outwardly in the radial direction from a part on the side of an open end along the bottom plate part. The first pad member has a second extension part extending inwardly in the radial direction from an abutting part abutting on the inner circumferential face of the filter along the bottom plate part. By sandwiching the first extension part between the bottom plate part and the second extension part, the cup-shaped member is fixed to the bottom plate part.

Abstract: A gas generator includes a bottom plate part which is a part of a housing, a cup-shaped member accommodating a transfer charge, a cylindrical filter accommodated in the housing, and an annular first pad member situated in a part on the side of the bottom plate part of a combustion chamber. The cup-shaped member is arranged to project toward inside the combustion chamber, and has a first extension part extending outwardly in the radial direction from a part on the side of an open end along the bottom plate part. The first pad member has a second extension part extending inwardly in the radial direction from an abutting part abutting on the inner circumferential face of the filter along the bottom plate part. By sandwiching the first extension part between the bottom plate part and the second extension part, the cup-shaped member is fixed to the bottom plate part.

Abstract: Steering stability and drainage property are improved in good balance. A center land portion 5 is formed between crown circumferential grooves 3i, 3o which are located on inner side and outer side of a vehicle and extend in the circumferential direction on both sides of the tire equator. In the center land portion 5 are disposed a plurality of curved oblique grooves 8 each of which extends obliquely toward the inner side of the vehicle across the tire equator from its outer end 8a opening at the outer crown circumferential groove 3o, turns toward the outer side of the vehicle, and further extends obliquely up to its inner end 8b located in the center land portion 5, and the respective curved oblique grooves 8 are connected with each other through connecting groove portions 11 each extending in the circumferential direction from the inner end 8b.

Abstract: A pneumatic tire comprises circumferentially-continuously-extending crown main grooves and shoulder main grooves to divide the tread portion into one crown rib, two middle ribs and two shoulder ribs. The middle rib is provided with a circumferentially-continuously-extending middle sub groove to define an axially inner part and an axially outer part. The axially inner part is provided with inner middle lug grooves comprising an axially outer wide main part and an axially inner narrow part. The axially outer part is provided with outer middle lug grooves comprising an axially outer main part an axially inner sipe-like narrow part . The width and position of the middle sub groove, and the widths of the lug grooves are specifically defined in order to improve the wet performance and noise performance in a well balanced manner while maintaining the steering stability.

Abstract: A pneumatic tire comprises circumferentially-continuously-extending crown main grooves and shoulder main grooves to divide the tread portion into one crown rib, two middle ribs and two shoulder ribs. The middle rib is provided with a circumferentially-continuously-extending middle sub groove to define an axially inner part and an axially outer part. The axially inner part is provided with inner middle lug grooves comprising an axially outer wide main part and an axially inner narrow part. The axially outer part is provided with outer middle lug grooves comprising an axially outer main part an axially inner sipe-like narrow part. The width and position of the middle sub groove, and the widths of the lug grooves are specifically defined in order to improve the wet performance and noise performance in a well balanced manner while maintaining the steering stability.

Abstract: Steering stability and drainage property are improved in good balance. A center land portion 5 is formed between crown circumferential grooves 3i, 3o which are located on inner side and outer side of a vehicle and extend in the circumferential direction on both sides of the tire equator. In the center land portion 5 are disposed a plurality of curved oblique grooves 8 each of which extends obliquely toward the inner side of the vehicle across the tire equator from its outer end 8a opening at the outer crown circumferential groove 3o, turns toward the outer side of the vehicle, and further extends obliquely up to its inner end 8b located in the center land portion 5, and the respective curved oblique grooves 8 are connected with each other through connecting groove portions 11 each extending in the circumferential direction from the inner end 8b.