Seat for vehicles

Patent metadata

Field	Value
Publication number	US-10710482-B2
Application number	US-201716078102-A
Country	US
Kind code	B2
Filing date	Feb 15, 2017
Priority date	Mar 4, 2016
Publication date	Jul 14, 2020
Grant date	Jul 14, 2020

Abstract

A seat for vehicles including a seat cushion, a seat back, and a head rest has the following arrangement to ensure that a surface member can be relatively easily but positively removed from a urethane pad if a foam molding defect is found in the urethane pad in integral molding of the urethane pad and the surface member. In the seat for vehicles, any one of the seat cushion, seat back, and head rest has a configuration where a surface of the urethane pad is covered with the surface member. The urethane pad and the surface member are partially bonded together by integral molding.

First claim

The invention claimed is:

1. A seat for vehicles comprising a seat cushion, a seat back, and a head rest, wherein one or more of the seat cushion, seat back, and head rest has a configuration comprising an integral molding that includes a urethane pad and a surface member covering a surface of the urethane pad, with the surface member being partially bonded to the urethane pad, and
wherein a film is inserted between the urethane pad and the surface member at a portion where the urethane pad and the surface member are not bonded together.

2. The seat for vehicles according to claim 1 , the film is a film having non-reactivity to urethane which forms the urethane pad.

3. The seat for vehicles according to claim 1 , wherein the surface member is bonded to the urethane pad at a plurality of bonded regions having portions separated by intervening non-bonded regions.

4. The seat for vehicles according to claim 1 , wherein the surface member is bonded to the urethane pad at a plurality of discrete bonded regions.

5. The seat for vehicles according to claim 1 , wherein a total area of a urethane-pad-side surface of the surface member bonded to the urethane pad is less than a total area of the urethane-pad-side surface not bonded to the urethane pad.

6. A seat for vehicles comprising a seat cushion, a seat back, and a head rest, wherein one or more of the seat cushion, seat back, and head rest has a configuration comprising an integral molding that includes a urethane pad and a surface member covering a surface of the urethane pad, with the surface member being partially bonded to the urethane pad, and
wherein at a portion where the urethane pad and the surface member are not bonded together, a material having non-reactivity to urethane which forms the urethane pad is coated on a surface of the surface member which is in contact with the urethane pad.

7. The seat for vehicles according to claim 6 , wherein the surface member is bonded to the urethane pad at a plurality of bonded regions having portions separated by intervening non-bonded regions.

8. A seat for vehicles comprising a seat cushion, a seat back, and a head rest, wherein one or more of the seat cushion, seat back, and head rest has a configuration comprising an integral molding that includes a urethane pad and a surface member covering a surface of the urethane pad, with the surface member being partially bonded to the urethane pad, and
wherein the surface member comprises: a surface material; a cushion material formed of polyurethane under the surface material and having a front side covered by the surface material; and a back cloth covering a back side of the cushion material, the back cloth being in contact with the urethane pad and partially bonded to the urethane pad.

9. The seat for vehicles according to claim 8 , wherein the surface member is bonded to the urethane pad at a plurality of bonded regions having portions separated by intervening non-bonded regions.

10. A seat for vehicles comprising a seat cushion, a seat back, and a head rest, wherein one or more of the seat cushion, seat back, and head rest includes a urethane pad and a surface member having a multi-layered structure and covering a surface of the urethane pad, with a urethane-pad-side layer of the surface member be ing partially bonded to the urethane pad, and
wherein at a portion where the urethane pad and the urethane-pad-side layer of the surface member are not bonded together, a film is inserted between the urethane pad and the urethane-pad-side layer of the surface member.

11. The seat for vehicles according to claim 10 , wherein the urethane-pad-side layer of the surface member is bonded to the urethane pad at a plurality of bonded regions having portions separated by intervening non-bonded regions.

12. The seat for vehicles according to claim 10 , wherein the urethane-pad-side layer of the surface member is bonded to the urethane pad at a plurality of discrete bonded regions.

13. The seat for vehicles according to claim 10 , wherein a total area of the urethane-pad-side layer of the surface member bonded to the urethane pad is less than a total area of the urethane-pad-side layer not bonded to the urethane pad.

14. A seat for vehicles comprising a seat cushion, a seat back, and a head rest, wherein one or more of the seat cushion, seat back, and head rest includes a urethane pad and a surface member having a multi-layered structure and covering a surface of the urethane pad, with a urethane-pad-side layer of the surface member being partially bonded to the urethane pad,
wherein the urethane pad and the surface member constitute parts if an integral molding having the urethane-pad-side layer of the surface member partially bonded to the urethane pad, and
wherein at a portion where the urethane pad and the urethane-pad-side layer of the surface member are not bonded together, a film having non-reactivity to urethane which forms the urethane pad is inserted between the urethane pad and the urethane-pad-side layer of the surface member.

15. A seat for vehicles comprising a seat cushion, a seat back, and a head rest, wherein one or more of the seat cushion, seat back, and head rest includes a urethane pad and a surface member having a multi-layered structure and covering a surface of the urethane pad, with a urethane-pad-side layer of the surface member being partially bonded to the urethane pad,
wherein the urethan pad and the surface member constitute parts of an integral molding having the urethane-pad-side layer of the surface member partially bonded to the urethane pad, and
a material having non-reactivity to urethane which forms the urethane pad is coated on a surface of a urethane-pad-side layer of the surface member at a portion where the urethane pad and the urethane-pad-side layer of the surface member are not bonded together.

16. A seat for vehicles comprising a seat cushion, a seat back, and a head rest, wherein one or more of the seat cushion, seat back, and head rest includes a urethane pad and a surface member having a multi-layered structure and covering a surface of the urethane pad, with a urethane-pad-side layer of the surface member being partially bonded to the urethane pad, and
wherein the surface member of the multi-layered structure comprises: a surface material; a cushion material formed of polyurethane under the surface material and having a front side covered by the surface material; and a back cloth covering a back side of the cushion material, the back cloth being in contact with the urethane pad and partially bonded to the urethane pad.

17. The seat for vehicles according to claim 16 , wherein the urethane-pad-side layer of the surface member is bonded to the urethane pad at a plurality of bonded regions having portions separated by intervening non-bonded regions.

Assignees

• Tachi S Co

Inventors

• Hirano Takumi
• Mizuno Shinichi
• Tabata Tsuyoshi
• Yamamoto Hiromi

Classifications

• B29C44/129

  Enhancing adhesion to the preformed part using an interlayer · CPC title

• B29K2623/06

  PE, i.e. polyethylene · CPC title

• B29C44/14

  the preformed part being a lining {(B29C44/1209 takes precedence)} · CPC title

• B29K2623/12

  PP, i.e. polypropylene · CPC title

• B29L2031/771

  Seats · CPC title