A vehicle seat assembly is provided with a seat back frame. A bracket is provided with a substrate welded to the seat back frame. Two pairs of sidewalls extend from the substrate and are tapered with an enlarged region at an upper distal end. A pair of support plates are each supported by one of the two pairs of sidewalls and spaced apart from the substrate to provide a mounting surface. A pair of spaced apart tubes are each welded to the bracket mounting surface of one of the pair of support plates. A pair of head restraint posts are each received in one of the pair of tubes. A head restraint is supported upon the pair of head restraint posts, so that upon a rear vehicle impact, the bracket deforms as the pair of head restraint posts are translated toward the seat back frame.

A vehicle seat assembly is provided with a seat back frame. A bracket is provided with a substrate welded to the seat back frame. Two pairs of sidewalls extend from the substrate and are tapered with an enlarged region at an upper distal end. A pair of support plates are each supported by one of the two pairs of sidewalls and spaced apart from the substrate to provide a mounting surface. A pair of spaced apart tubes are each welded to the bracket mounting surface of one of the pair of support plates. A pair of head restraint posts are each received in one of the pair of tubes. A head restraint is supported upon the pair of head restraint posts, so that upon a rear vehicle impact, the bracket deforms as the pair of head restraint posts are translated toward the seat back frame.

A vehicle occupant protection device includes: an airbag main body that includes a front-rear chamber that is deployed to a seat front side along a side of a head of an occupant by a gas ejected from an inflator operated when a collision of a vehicle is detected or predicted, and a tip end chamber that is deployed inward in a seat width direction from an end portion of the front-rear chamber on the seat front side; and a headrest that includes a main body portion that supports the head of the occupant from a seat rear side, and a side portion that is provided on at least a side of the main body portion, that protrudes to the seat front side until a deployment of the front-rear chamber is completed, and that is interposed between the front-rear chamber and the head of the occupant.

A vehicle occupant protection device includes: an airbag main body that includes a front-rear chamber that is deployed to a seat front side along a side of a head of an occupant by a gas ejected from an inflator operated when a collision of a vehicle is detected or predicted, and a tip end chamber that is deployed inward in a seat width direction from an end portion of the front-rear chamber on the seat front side; and a headrest that includes a main body portion that supports the head of the occupant from a seat rear side, and a side portion that is provided on at least a side of the main body portion, that protrudes to the seat front side until a deployment of the front-rear chamber is completed, and that is interposed between the front-rear chamber and the head of the occupant.

Headrest (1) for a racing vehicle (10) comprising a cockpit (11) wherein a driver (20) wearing a helmet (30) can sit, comprising a flexible casing (2) configured to be anchored to a vehicle body (12) and at least one energy-absorbing member (3) comprising at least one honeycomb cellular structure (9) arranged inside said casing (2). The energy-absorbing member (3) further comprising a foam pad (8) shaped so as to hold the at least one honeycomb cellular structure (9).

Headrest (1) for a racing vehicle (10) comprising a cockpit (11) wherein a driver (20) wearing a helmet (30) can sit, comprising a flexible casing (2) configured to be anchored to a vehicle body (12) and at least one energy-absorbing member (3) comprising at least one honeycomb cellular structure (9) arranged inside said casing (2). The energy-absorbing member (3) further comprising a foam pad (8) shaped so as to hold the at least one honeycomb cellular structure (9).

A height adjustment mechanism for a headrest includes: a locking member configured to be locked with a height adjustment gear, the locking member having a first locking position and a first unlocking position, and the locking member being capable of switching between the first locking position and the first unlocking position; an operating member having an initial position, a first operating position and a second operating position; a safety lock structure configured to lock the locking member in the first locking position, the safety lock structure being movably connected on the operating member; and a driving member, one side of the driving member being slidably connected to the operating member, the other side of the driving member abutting against the locking member.

A height adjustment mechanism for a headrest includes: a locking member configured to be locked with a height adjustment gear, the locking member having a first locking position and a first unlocking position, and the locking member being capable of switching between the first locking position and the first unlocking position; an operating member having an initial position, a first operating position and a second operating position; a safety lock structure configured to lock the locking member in the first locking position, the safety lock structure being movably connected on the operating member; and a driving member, one side of the driving member being slidably connected to the operating member, the other side of the driving member abutting against the locking member.

A vehicle-mounted seat device includes an SB main frame, a backrest, a relay disk secured at the center in the width direction of the backrest, a plurality of radial wires for suspending the backrest such that the backrest can swing relative to the SB main frame with the relay disk as the center, an SB subframe capable of swinging together with the backrest, a headrest, a headrest stay extending downward from the headrest and mounted on the SB main frame so as to rotate around a rotation shaft; a pressure-receiving body secured on the headrest stay so as to be disposed behind and opposed to the relay disk; and a provisional connection mechanism for provisionally connecting the headrest stay to the SB main frame.

A headrest includes a frame made of metal, the frame includes a base plate supported by a headrest fixing device, and a cover plate disposed on an occupant head side of the base plate. The cover plate includes a cover panel portion, and a cover frame portion extending from an outer circumferential edge of the cover panel portion toward the base plate. The base plate includes a base panel portion, and a base frame portion extending from an outer circumferential edge of the base panel portion toward the cover plate, and fitted into the cover frame portion. A first part of the cover frame portion is joined to the base frame portion, and a remaining second part of the cover frame portion is enjoined to the base frame portion.