US4781779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing trim cover assembly for vehicle seats
Assignee: Tachi S Co Ltd
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Filing: 1987-09-29
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Granted: 1988-11-01
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Expires: 2007-09-29
Abstract
Abstract A method of manufacturing a trim cover assembly for a vehicle seat, in which a decorative strip preformed in a predetermined shape and a substrate are pressed and heated together by upper and lower dies of a high frequency wave welding apparatus, while a high frequency wave is applied thereto. The upper die has a working surface larger than the decorative strip and formed with a fine crimp and fine irregularity. Thus, the decorative strip is welded integrally to the substrate on the same level, to thereby produce a greatly advantageous and aesthetic trim cover assembly.
Inventors
- 👤 Akira Nemoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:54
CPC Classifications
B; B44; B44C; B44C3/00; B44C3/08; B29; B29C; B29C59/00; B29C59/02; B29C59/026; B29C65/00; B29C65/02; B29C65/04; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/306; B29C66/3062; B29C66/30621; B29C66/40; B29C66/47; B29C66/472; B29C66/4724; B29C66/80; B29C66/83; B29C66/832; B29C66/8322; B29C66/70; B29C66/71; B29L; B29L2031/00; B29L2031/722; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1039; Y10T156/1089; Y10T156/109; Y10T156/1092
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
144 words
A method of manufacturing a trim cover assembly for vehicle seats, comprising the steps of: placing a thermoplastic substrate on a lower die of a high frequency wave welding apparatus; placing a thermoplastic decorative strip preformed in a predetermrined shape, upon said substrate placed on said lower die; thereafter, lowering an upper die of said high frequency wave welding apparatus, said upper die having a working surface larger than said decorative strip and formed with a fine crimped irregularity, so as to reach said laminated decorative strip and substrate; and applying pressure and heat via said upper die to said decorative strip and substrate while a high frequency wave is applied thereto via said upper die, whereby said decorative strip is integrally welded to said substrate in a configuration wherein upper surfaces of said decorative strip and said substrate lie in the same plane.
Claim 2
Independent Claim
144 words
A method of manufacturing a trim cover assembly for vehicle seats, comprising the steps of: placing a thermoplastic substrate on a lower die of a high frequency wave welding apparatus; placing a thermoplastic decorative strip preformed in a predetermrined shape, upon said substrate placed on said lower die; thereafter, lowering an upper die of said high frequency wave welding apparatus, said upper die having a working surface larger than said decorative strip and formed with a fine crimped irregularity, so as to reach said laminated decorative strip and substrate; and applying pressure and heat via said upper die to said decorative strip and substrate while a high frequency wave is applied thereto via said upper die, whereby said decorative strip is integrally welded to said substrate in a configuration wherein upper surfaces of said decorative strip and said substrate lie in the same plane.
Claim 3
Dependent Claim
26 words
The method as defined in claim 1, wherein said lower die of said high frequency wave apparatus is formed flat and smooth in its working surface.
Claim 4
Dependent Claim
18 words
The method as defined in claim 1, wherein said decorative strip comprises a single film of synthetic resin.
Claim 5
Dependent Claim
23 words
The method as defined in claim 1, wherein said decorative strip comprises a plurality of different colored films disposed in a single plane.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-01 | 1992-05-02 | 1992-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-01 | 1996-05-02 | 1996-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-01 | 2000-05-02 | 2000-11-01 | $7700.00 | Window Closed / Lapsed |