Ts Tech Co., Ltd.

Takuya Okubo

Takayuki Inose

Masaki Nonaka

Isao Kawashima

Provided is a simple and compact headrest support device. The headrest support device () comprises a support member () coupled to a frame () of a seatback (), and a headrest pillar structure including a pillar base portion () extending laterally and supported by the support member so as to be rotatable around an axial line of the pillar base portion, and a pair of pillar main body portions () extending substantially vertically from the pillar base portion substantially in parallel to each other in a laterally spaced apart relationship and connected to a headrest (), wherein the support member is coupled to the frame at at least one coupling portion () disposed between the two pillar main body portions in front view in a headrest upright condition where the headrest is positioned above the seatback.

Headrest support device

A seat device for a vehicle includes a dynamic damper attached to a frame of a seat installed in the vehicle. The dynamic damper includes a damper case that is formed from separable first and second case halves, a weight that is housed in a damper chamber, and an elastic member that is disposed between the weight and the damper chamber so as to allow vibration of the weight. The damper case is provided with a plurality of mounting parts that are mounted on the frame, and the mounting parts comprise first and second mounting parts which are engaged with the frame at two left and right places as seen in a front view of the seat, and a third mounting part other than the first and second mounting parts which is provided between the first and second mounting parts.

Seat device for vehicle and method of assembling same

Seat device for vehicle and method for assembling same

Seat device for vehicle

A vehicle seat device includes a seat cushion disposed on a floor of a vehicle, a seat back linked to a rear end part of the seat cushion, and a headrest fitted to an upper end part of the seat back, wherein a vibration system that also includes the seat back and the headrest is equipped with a dynamic damper. The dynamic damper includes an elastic member that is embedded within a cushion member of the vibration system, and a weight embedded in the elastic member. The weight has a center of gravity thereof set to a position offset to at least one side from a center of the cushion member in an up-and-down direction of a seat, and the weight has an asymmetric shape in at least one of a lateral direction and an up-and-down direction.

Vehicle seat device

In a seat device for a vehicle, a dynamic damper comprises a damper case that is formed from first and second case halves joined together so as to be capable of separating from each other to define a damper chamber therebetween, a weight that is housed in the damper chamber, and an elastic member that is disposed between the weight and an inner face of the damper chamber so as to allow vibration of the weight, the damper case being provided with a mounting part that is mounted on a frame of the seat. Thus, it is possible to provide a seat device for a vehicle in which replacement of a weight and an elastic member in order to adjust or change the damping characteristics is possible, and the ease of mounting a damper case on a seat is good.

In a vehicle seat device including a vibration system formed from a seat back and a headrest being equipped with a dynamic damper, the dynamic damper is formed from an elastic member that is embedded within a cushion member of the vibration system and formed from a rubber or elastomer that is softer than the cushion member, and a weight embedded in the elastic member. Thus it is possible to provide a vehicle seat device that includes a dynamic damper having a small number of components and a simple structure.

A seat device for a vehicle is provided in which a dynamic damper is formed of a weight and an elastic member supporting the weight so as to be capable of vibrating, and the elastic member is retained on a frame or a cushion member of a seat installed in the vehicle, wherein the weight is formed into a polyhedron whereas the elastic member is formed into a sheet shape, and the weight is covered and supported by the sheet-shaped elastic member. This enables the weight to be supported simply by the elastic member, and the dynamic damper to be provided at low cost.

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Tochigi, Japan

Takuya Okubo