To provide a vehicle seat which makes the load from the airbag more likely to be concentrated on a weakened part of a skin member, a vehicle seat provided with a seat cushion constituting a seating surface and a seat back constituting a backrest including a seat back frame forming a structural member of the seat back; an airbag module supported on a side portion of the seat back frame on a vehicle outer side; a pad member covering the airbag module; and a skin member covering a surface of the pad member, wherein the skin member is provided with a weakened part vertically extending on an edge part of the seat back on a vehicle outer side and a first low-elasticity reinforcement part extending from a vicinity of the weakened part in a direction intersecting with the weakened part.

An occupant protection device which is configured to protect an occupant seated on a seat, includes a seat belt, an airbag, and an inflator configured to supply inflation gas to the airbag. The airbag has a bag shape formed of a flexible sheet body, the airbag is folded and stored in a storage part provided in a lap belt, the airbag is inflated so as to project toward a front upper side when the inflation gas flows into the airbag, and the airbag has a substantially triangular prism shape whose axial direction is substantially aligned with a left-right direction so as to include a leg abutting surface which is capable of abutting an upper surface of a leg of the occupant and an upper body restraining surface which is capable of restraining the occupant from a chest to a head, when the airbag is completely inflated.

A vehicle interior panel for use over a deployable airbag includes a substrate that splits during airbag deployment to form an airbag door on one side of a tear seam that pivots away from another portion of the substrate on an opposite side of the tear seam. One or more relief lines are formed in the substrate in a manner that allows the airbag door to preferentially bend along each relief line during airbag deployment. This bending concentrates forces from the deploying airbag to particular and sequential portions of the tear seam to improve tear seam function.

A vehicle interior panel for use over a deployable airbag includes a substrate that splits during airbag deployment to form an airbag door on one side of a tear seam that pivots away from another portion of the substrate on an opposite side of the tear seam. One or more relief lines are formed in the substrate in a manner that allows the airbag door to preferentially bend along each relief line during airbag deployment. This bending concentrates forces from the deploying airbag to particular and sequential portions of the tear seam to improve tear seam function.

A side airbag device-installed vehicle seat including a side frame, a side airbag, a front side cover, and a low extendibility member is provided. The side frame is disposed within a side section of a seatback. The side airbag is stowed within the side section, receives gas supplied from an inflator to inflate and deploy alongside a seated occupant, and includes an inner bag that inflates between the side frame and the seated occupant. The front side cover configures part of a cover of the seatback, and is interposed between the inner bag and the seated occupant when the inner bag is inflated. The low extendibility member is configured to stretch less readily than the front side cover, and is bound to a back face of the front side cover.

An occupant protection device which is configured to protect an occupant seated on a seat, includes a seat belt, an airbag, and an inflator configured to supply inflation gas to the airbag. The airbag has a bag shape formed of a flexible sheet body, the airbag is folded and stored in a storage part provided in a lap belt, the airbag is inflated so as to project toward a front upper side when the inflation gas flows into the airbag, and the airbag has a substantially triangular prism shape whose axial direction is substantially aligned with a left-right direction so as to include a leg abutting surface which is capable of abutting an upper surface of a leg of the occupant and an upper body restraining surface which is capable of restraining the occupant from a chest to a head, when the airbag is completely inflated.

A side airbag device-installed vehicle seat including a side frame, a side airbag, a front side cover, and a low extendibility member is provided. The side frame is disposed within a side section of a seatback. The side airbag is stowed within the side section, receives gas supplied from an inflator to inflate and deploy alongside a seated occupant, and includes an inner bag that inflates between the side frame and the seated occupant. The front side cover configures part of a cover of the seatback, and is interposed between the inner bag and the seated occupant when the inner bag is inflated. The low extendibility member is configured to stretch less readily than the front side cover, and is bound to a back face of the front side cover.

To provide a vehicle seat which makes the load from the airbag more likely to be concentrated on a weakened part of a skin member, a vehicle seat provided with a seat cushion constituting a seating surface and a seat back constituting a backrest including a seat back frame forming a structural member of the seat back; an airbag module supported on a side portion of the seat back frame on a vehicle outer side; a pad member covering the airbag module; and a skin member covering a surface of the pad member, wherein the skin member is provided with a weakened part vertically extending on an edge part of the seat back on a vehicle outer side and a first low-elasticity reinforcement part extending from a vicinity of the weakened part in a direction intersecting with the weakened part.

A side airbag device, provided between a vehicle body and rear seat, includes: a base member having upper and lower base attachment portions, attached to portions of the vehicle body, and a base storage portion that stores an airbag and inflator and is interposed between the base attachment portions in an up to down direction; and a retainer member adapted to hold the base storage portion from the vehicle body rear side. Upper and lower engagement recessed portions located at the retainer member center in the vehicle body width direction are arranged in the up to down direction to be engaged with engagement protruded portions provided at the vehicle body, which is located on the rear side. The base attachment portions are configured so that an imaginary surface passes them and extends in the front to back direction of the vehicle body to pass the upper engagement recessed portion.

To provide a vehicle seat which makes the load from the airbag more likely to be concentrated on a weakened part of a skin member, a vehicle seat provided with a seat cushion constituting a seating surface and a seat back constituting a backrest includes: a seat back frame forming a structural member of the seat back; an airbag module supported on a side portion of the seat back frame on a vehicle outer side; a pad member covering the airbag module; and a skin member covering a surface of the pad member, wherein the skin member is provided with a weakened part vertically extending on an edge part of the seat back on a vehicle outer side and a first low-elasticity reinforcement part extending from a vicinity of the weakened part in a direction intersecting with the weakened part.