VEHICULAR SEAT, WATERCRAFT SEAT, METHOD FOR MAKING VEHICULAR SEAT, AND METHOD FOR MAKING WATERCRAFT SEAT

• US 20110210597A1
• Filed: 02/23/2011
• Published: 09/01/2011
• Est. Priority Date: 02/26/2010
• Status: Abandoned Application

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Ohara, Takeshi, TAKEUCHI, Tsutomu, Koyano, Mitsue
• Application Number:
  US13/033,031
• Publication Number:
  US 20110210597A1
• Time in Patent Office: Days
• US Class Current: 297/452.55
• CPC Class Codes: B29C 44/1238 and having flexible and solid areas
• CPC Class Codes: B60N 2/5664 with unforced air circulation, i.e. not using a fan or the like
• CPC Class Codes: B60N 2/5816 attachments thereof
• CPC Class Codes: B60N 2/7017 characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for
• CPC Class Codes: B60N 2/7035 Cushions
• CPC Class Codes: B62J 1/12 Box-shaped seats; Bench-type seats, e.g. dual or twin seats
• CPC Class Codes: Y10T 29/4998 Combined manufacture including applying or shaping of fluent material

Abstract

A vehicular seat, a watercraft seat, a method for making the vehicular seat, and a method for making the watercraft seat that can achieve a favorable riding comfort, reduce the number of work processes involved, and reduce a manufacturing cost even by foaming a first cushion member of urethane on a second cushion member of a thermoplastic elastomer to make an integrated assembly of the first cushion member of urethane and the second cushion member. A vehicular seat includes a first cushion member formed of urethane and covered with a seat skin and a second cushion member formed of a thermoplastic elastomer and disposed between the first cushion member and a bottom plate. A covering sheet is disposed between the first cushion member and the second cushion member.

Claims

1. A vehicular seat comprising:

a first cushion member formed of urethane, the first cushion member being covered with a seat skin;

a second cushion member formed of a thermoplastic elastomer, the second cushion member being disposed between the first cushion member and a bottom plate; and

a covering sheet disposed between the first cushion member and the second cushion member.

2. The vehicular seat according to claim 1, wherein the covering sheet is disposed on the second cushion member on a side thereof adjacent the first cushion member, and not on an entire surface or part of a side thereof adjacent the bottom plate.

3. The vehicular seat according to claim 1, wherein the bottom plate includes a rib disposed on an upper surface thereof, the rib extending toward a side of the second cushion member.

4. The vehicular seat according to claim 1, wherein the bottom plate includes a protruding portion formed continuously at approximately a central portion of a bottom of a recessed portion for supporting a lower surface of the second cushion member to enhance stiffness of the bottom plate.

5. The vehicular seat according to claim 1, wherein the bottom plate is formed of synthetic resin.

6. The vehicular seat according to claim 1, wherein the bottom plate includes a recessed portion formed at a central portion thereof for positioning the second cushion member.

7. The vehicular seat according to claim 1, wherein the bottom plate includes a seat skin mounting portion formed continuously on each outer portion of a curved portion of the bottom plate.

8. A watercraft seat comprising:

a first cushion member formed of urethane, the first cushion member being covered with a seat skin;

a second cushion member formed of a thermoplastic elastomer, the second cushion member being disposed between the first cushion member and a bottom plate; and

a covering sheet disposed between the first cushion member and the second cushion member.

9. The watercraft seat according to claim 8, wherein the covering sheet is disposed on the second cushion member on a side adjacent the first cushion member, and not on an entire surface or part of a side adjacent the bottom plate.

10. The watercraft seat according to claim 8, wherein the bottom plate has a rib disposed on an upper surface thereof, the rib extending toward a side of the second cushion member.

11. The watercraft seat according to claim 8, wherein the bottom plate includes a protruding portion formed continuously at approximately a central portion of a bottom of a recessed portion for supporting a lower surface of the second cushion member to enhance stiffness of the bottom plate.

12. The watercraft seat according to claim 8, wherein the bottom plate is formed of synthetic resin.

13. The watercraft seat according to claim 8, wherein the bottom plate includes a recessed portion formed at a central portion thereof for positioning the second cushion member.

14. The watercraft seat according to claim 8, wherein the bottom plate includes a seat skin mounting portion formed continuously on each outer portion of a curved portion of the bottom plate.

15. A method for making a vehicular seat, the vehicular seat including a first cushion member formed of urethane, the first cushion member being covered with a seat skin;

a second cushion member formed of a thermoplastic elastomer, the second cushion member being disposed between the first cushion member and a bottom plate; and

a covering sheet disposed between the first cushion member and the second cushion member, the method comprising the steps of;

forming the second cushion member;

affixing the covering sheet generally to the second cushion member excluding part thereof;

setting the second cushion member, to which the covering sheet is affixed, into a first mold;

loading a urethane material into a second mold;

closing the first mold and the second mold;

foaming the urethane material to thereby integrally form the first cushion member on a surface of the covering sheet affixed to the second cushion member;

removing an integrated assembly of the first cushion member, the second cushion member, and the covering sheet from the first mold and the second mold; and

mounting the bottom plate on a lower surface of the integrated assembly of the first cushion member, the second cushion member, and the covering sheet, covering a surface of the first cushion member with the seat skin, and mounting the seat skin on the bottom plate.

16. The method for making a vehicular seat according to claim 15, wherein the bottom plate includes a protruding portion formed continuously at approximately a central portion of a bottom of a recessed portion for supporting a lower surface of the second cushion member to enhance stiffness of the bottom plate.

17. The method for making a vehicular seat according to claim 15, wherein the bottom plate includes a recessed portion formed at a central portion thereof for positioning the second cushion member.

18. A method for making a watercraft seat, the watercraft seat including a first cushion member formed of urethane, the first cushion member being covered with a seat skin;

a second cushion member formed of a thermoplastic elastomer, the second cushion member being disposed between the first cushion member and a bottom plate; and

a covering sheet disposed between the first cushion member and the second cushion member, the method comprising the steps of;

forming the second cushion member;

affixing the covering sheet generally to the second cushion member excluding part thereof;

setting the second cushion member, to which the covering sheet is affixed, into a first mold;

loading a urethane material into a second mold;

closing the first mold and the second mold;

foaming the urethane material to thereby integrally form the first cushion member on a surface of the covering sheet affixed to the second cushion member;

removing an integrated assembly of the first cushion member, the second cushion member, and the covering sheet from the first mold and the second mold; and

mounting the bottom plate on a lower surface of the integrated assembly of the first cushion member, the second cushion member, and the covering sheet, covering a surface of the first cushion member with the seat skin, and mounting the seat skin on the bottom plate.

19. The method for making a watercraft seat according to claim 18, wherein the bottom plate includes a protruding portion formed continuously at approximately a central portion of a bottom of a recessed portion for supporting a lower surface of the second cushion member to enhance stiffness of the bottom plate.

20. The method for making a watercraft seat according to claim 18, wherein the bottom plate includes a recessed portion formed at a central portion thereof for positioning the second cushion member.