VEHICLE SEAT

• US 20150343929A1
• Filed: 05/26/2015
• Published: 12/03/2015
• Est. Priority Date: 05/27/2014
• Status: Active Grant

• Current Assignee: NHK Spring Company Limited
• Original Assignee: NHK Spring Company Limited
• Inventors: Yasuda, Kenzo
• Granted Patent: US 9,718,385 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B29C 44/0461 by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other
• CPC Class Codes: B29C 44/1228 Joining preformed parts by the expanding material
• CPC Class Codes: B29C 44/14 the preformed part being a lining B29C44/1209 takes precedence
• CPC Class Codes: B29L 2031/58 Upholstery or cushions, e.g. vehicle upholstery or interior padding mattresses, cushions B29L2031/751
• CPC Class Codes: B60N 2/646 shape of the cushion
• CPC Class Codes: B60N 2/68 Seat frames
• CPC Class Codes: B60N 2/686 Panel like structures

Abstract

There is provided a vehicle seat including a seatback frame including: a first base member formed of a thin plate member made of resin; a second base member formed of a thin plate member made of resin and disposed facing the first base member; a pass-through portion that is formed to at least one of the first base member or the second base member, and that enables insertion of an injection nozzle for injecting a foaming liquid for a foamed body; and a core section that is configured by the foamed body, that is disposed between the first base member and the second base member, and that is adhered to the first base member and the second base member.

Claims

1. A vehicle seat including a seatback frame comprising:

a first base member formed of a thin plate member made of resin;

a second base member formed of a thin plate member made of resin and disposed facing the first base member;

a pass-through portion that is formed to at least one of the first base member or the second base member, and that enables insertion of an injection nozzle for injecting a foaming liquid for a foamed body; and

a core section that is configured by the foamed body, that is disposed between the first base member and the second base member, and that is adhered to the first base member and the second base member.

2. The vehicle seat of claim 1, wherein:

the core section is configured including a first foamed section, and a second foamed section with a higher density than the first foamed section; and

the pass-through portion is configured including a first pass-through portion facing the first foamed section, and a second pass-through portion formed at a position separated from the first pass-through portion and facing the second foamed section.

3. The vehicle seat of claim 2, wherein the second foamed section is formed at a lower part of the seatback frame and the first foamed section is formed at an upper part of the seatback frame.

4. The vehicle seat of claim 1, wherein:

a plurality of partitioned regions are formed between the first base member and the second base member by a rib portion that protrudes out from at least one of the first base member or the second base member with a leading end portion of the rib portion abutting the other of the first base member or the second base member.

5. The vehicle seat of claim 4, wherein any of the partitioned regions from out of the plurality of partitioned regions forms a thinned portion of the core section.

6. The vehicle seat of claim 5, wherein the partitioned region that forms the thinned portion of the core section is formed by a rib section that is a cylindrical shape.