Vehicle seat
AssigneeTs Tech Co., Ltd.
InventorKazunori HOJO
Life of this patent
Estimating the term…
Abstract
To improve the seated feeling of an occupant in a seat having partially different hardness, a vehicle seat includes a seat frame, an S spring which is installed on the seat frame and receives a load of an occupant, and a seat back pad which has a plurality of regions respectively formed of different materials and is disposed between a skin material of the seat and the S spring. The S spring is disposed at a position facing a boundary portion which is provided in the seat back pad and is the plurality of regions respectively formed of different materials.
Claims11
A vehicle seat comprising:
- a seat back that forms a backrest surface,
- wherein
- the seat back includes:
- a seat back frame that forms a skeleton of the seat back;
- a pressure receiving member that is installed on the seat back frame and configured to receive a load of an occupant;
- a seat back pad which has a plurality of regions respectively formed of different materials, wherein the seat back pad is disposed between a skin material of the seat back and the pressure receiving member;
- and
- a boundary portion that is a boundary between the plurality of regions formed of the different materials,
- the seat back pad includes an upper cushion region configured to support an upper portion of an upper body of the occupant, a right cushion region configured to support a right portion of the upper body of the occupant, and a left cushion region configured to support a left portion of the upper body of the occupant, wherein the upper cushion region, the right cushion region and the left cushion region are defined by a first groove portion,
- the seat back pad further includes a lumbar support region configured to support a lumbar spine of the occupant,
- a front end portion and a rear end portion of the boundary portion are disposed at a same position in a seat up and down direction,
- the boundary portion is provided along a seat width direction and is located above the lumbar support region in the seat up and down direction, and
- a second groove portion is provided at a front side of the boundary portion.
A method of manufacturing the vehicle seat having a seat back, comprising:
- preparing a seat back frame that forms a skeleton of the seat back;
- installing a pressure receiving member configured to receive a load of an occupant on the seat back frame;
- preparing a seat back pad which has a plurality of regions respectively formed of different materials;
- and
- disposing the seat back pad on the pressure receiving member and covering the seat back pad with a skin material,
- wherein
- the seat back pad includes
- a boundary portion that is a boundary between the plurality of regions formed of the different materials,
- an upper cushion region configured to support an upper portion of an upper body of the occupant, a right cushion region configured to support a right portion of the upper body of the occupant, and a left cushion region configured to support a left portion of the upper body of the occupant, wherein the upper cushion region, the right cushion region and the left cushion region are defined by a first groove portion, and
- a lumbar support region configured to support a lumbar spine of the occupant,
- a front end portion and a rear end portion of the boundary portion are disposed at a same position in a seat up and down direction,
- the boundary portion is provided along a seat width direction and is located above the lumbar support region in the seat up and down direction, and
- a second groove portion is provided at a front side of the boundary portion.
Dependencies are inferred from the claim text.