Molded wooden products

• US 4,830,929 A
• Filed: 12/05/1986
• Issued: 05/16/1989
• Est. Priority Date: 12/09/1985
• Status: Expired due to Term

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Ikeda, Sadao, Taguchi, Yoshio
• Primary Examiner(s): Epstein, Henry F.
• Application Number:
  US06/938,619
• Time in Patent Office: 893 Days
• Field of Search: 428/326, 428/537.1, 428/542.8
• US Class Current: 428/542.8
• CPC Class Codes: B27N 3/20 characterised by using platen-presses
• CPC Class Codes: B27N 5/00 Manufacture of non-flat articles
• CPC Class Codes: B29C 43/3607 with sealing means or the like
• CPC Class Codes: B29C 43/38 with means to avoid flashes B29C43/40 takes precedence
• CPC Class Codes: B29K 2311/14 Wood, e.g. woodboard or fibreboard
• CPC Class Codes: B29L 2031/3041 Trim panels
• CPC Class Codes: Y10T 428/253 Cellulosic [e.g., wood, paper, cork, rayon, etc.]
• CPC Class Codes: Y10T 428/31989 Of wood

Abstract

A molded wooden product comprised of wood fibers to which a binder containing a synthetic resin or the like has been added, characterized in that it has portions of varying thickness, preferably a deep-drawn portion and a thickened peripheral portion, the molded wooden product being of substantially uniform density throughout.

Claims

1. A molded wooden product comprising wood fibers, said molded wooden product having portions therein of varying thickness at least one of said portions comprising a deep-drawn portion, and said molded wooden product having a substantially uniform density throughout.

2. A molded wooden product as set forth in claim 1, wherein said molded wooden product further comprises at least one of a binder composition, a water-repelling agent composition, and surface lubricant composition.

3. A molded wooden product as set forth in claim 2, wherein the binder composition comprises a synthetic resin.

4. A molded wooden product as set forth in claim 3, wherein the binder composition comprises at least one of a thermoplastic resin and a thermosetting resin.

5. A molded wooden product as set forth in claim 4, wherein said thermoplastic resin comprises chroman resin.

6. A molded wooden product as set forth in claim 4, wherein said thermosetting resin comprises at least one of a phenol resin and an urea.

7. A molded wooden product as set forth in claim 2, wherein the water-repelling agent composition comprises an aliphatic hydrocarbon composition.

8. A molded wooden product as set forth in claim 7, wherein said aliphatic hydrocarbon composition comprises a paraffin.

9. A molded wooden product as set forth in claim 1, wherein the deep-drawn portion comprises at least one protrusion extending outwardly from other of the portions of said molded wooden product adjacent said protrusion.

10. A molded wooden product as set forth in claim 1, wherein said molded wooden product comprises a door panel and the protrusion comprises an arm rest of said door panel.

11. A molded wooden product as set forth in claim 1, wherein at least one of the portions comprises a peripheral portion.

12. A molded wooden product as set forth in claim 11, wherein the peripheral portion has a thickness that exceeds the thickness of at least one of the other of the portions of said molded wooden product.

13. A molded wooden product as set forth in claim 12, wherein said molded wooden product comprises a door panel and the peripheral portion comprises a thickened border portion at the periphery of said door panel.