Vehicle seat

• US 4,579,389 A
• Filed: 04/30/1984
• Issued: 04/01/1986
• Est. Priority Date: 04/30/1984
• Status: Expired due to Fees

• Current Assignee: Tachikawa Spring Company Limited 2-12 Matubara-Cho 3-Chome Akishima-Shi Tokyo
• Original Assignee: Tachikawa Spring Company Limited (Tachi-S Company Limited)
• Inventors: Furukawa, Toshio, Shimbori, Hideo
• Primary Examiner(s): Lyddane, William E.
• Assistant Examiner(s): Chen, Jose V.
• Application Number:
  US06/605,285
• Time in Patent Office: 701 Days
• Field of Search: 297/452, 297/458, 297/459, 297/DIG. 1, 5/481, 5/474
• US Class Current: 297/452.6
• CPC Class Codes: A47C 7/18 having foamed material included in cushioning part foamed material mattresses A47C27/14
• CPC Class Codes: B60N 2/5883 by sewing, stitching or threading
• CPC Class Codes: B60N 2/686 Panel like structures
• CPC Class Codes: Y10S 297/01 Foam

Abstract

A vehicle seat is disclosed which is provided on its surface with a plurality of intersecting, recessed grooves for decoration. The seat includes a cushion member formed of a foam material and provided on its surface with a plurality of intersecting, recessed grooves. Projections are provided adjacent to the intersections of these recessed grooves, respectively. Such projections can prevent wrinkles from being produced in the intersections of the decorative recessed grooves formed in a top member which is a component of the seat. Specifically, when such top member placed over the cushion member is hung in along the recessed grooves of the cushion member, the recessed grooves for decoration are formed on the surface of the top member. During this hang-in operation, the projections are compressed so that repelling resilient forces are produced in these projections. Such resilient forces of the projections prevent any wrinkles from occurring in the intersections of the decorative recessed grooves in the top member.

Claims

1. A vehicle seat comprising:

a cushion member for supporting a seat occupant and including a plurality of intersecting recessed grooves to thereby establish a peripheral boundary of at least one discrete surface region of said cushion member;

a cover member for covering said cushion member; and

pulling means for exerting pulling forces upon said cover member to cause portions of said cover member to be accepted within said recessed grooves so that said accepted cover member portions form decorative boundaries around said at least one surface region of said cushion member;

said cushion member also including wrinkle-preventing means for exerting tensioning forces upon said cover member to thereby tension portions of said cover member to prevent wrinkles from forming therein, said wrinkle-preventing means including plural projection members formed integrally with said cushion member and positioned within said at least one surface region adjacent to intersections of said recessed grooves, each said projection member projecting outwardly above said at least one surface region, wherein said pulling means causes said cover member to resiliently compress each said projection member to thereby, in turn, cause each said projection member to exert said tensioning forces upon said cover member whereby wrinkles are prevented.

2. The vehicle seat as in claim 1 wherein said projection members are at least one geometric form selected from the group consisting of cubic-, cylindrical-, and pyramidal-forms.

3. The vehicle seat as in claim 1 wherein said cushion member includes a bottom support, and wherein said pulling means includes a flexible pulling member having one end fixed to said cover member, and coupling means for coupling another end of said pulling member adjacent to said bottom support.

4. The vehicle seat as in claim 3 wherein said coupling means includes a base wire embedded within said cushion member and a hog ring coupling said another end to said base wire.

5. The vehicle seat as in claim 1 wherein said cover member includes a top layer, a wadding cover layer, and wadding material disposed between said top layer and said wadding cover layer.

6. The vehicle seat as in claim 5 wherein said cover member, wadding material, and wadding cover layer are joined to one another at seams which are in registry with said recessed grooves.

7. The vehicle seat as in claim 1, wherein said cushion member further includes insertion bores formed in registry with said intersections of said recessed grooves, and wherein said pulling means is fixed to the back surface of said top member and inserted into said insertion bores, and wherein said pulling means includes a tip end portion and a base wire embedded within said cushion member, said tip end portion being fixed to said base wire.