Wooden nail-like connector, compressed bamboo material, and method of manufacturing the connector and the material

• US 20060060263A1
• Filed: 08/28/2003
• Published: 03/23/2006
• Est. Priority Date: 02/13/2003
• Status: Abandoned Application

• Current Assignee: Japan Science & Technology Trading Co. Limited
• Original Assignee: Japan Science & Technology Trading Co. Limited
• Inventors: Inoue, Masafumi
• Application Number:
  US10/545,374
• Publication Number:
  US 20060060263A1
• Time in Patent Office: Days
• US Class Current: 144/353
• CPC Class Codes: B27J 1/00 Mechanical working of cane or the like weaving D03D
• CPC Class Codes: B27M 3/00 Manufacture or reconditioning of specific semi-finished or finished articles features of copying devices B23Q; manufacture of plywood or veneer, shaping plywood or veneer into articles B27D; of central layers for plywood B27D1/06; nailing or stapling machines in general B27F7/00; of elements for cooperage or wheel making B27H ; presses therefor B27D3/00
• CPC Class Codes: F16B 15/00 Nails; Staples surgical staples A61B17/064; manufacture of nails or staples B21G ; drawing-pins, thumb-tacks B43M15/00; railway spikes E01B9/06

Abstract

A method is disclosed for manufacturing bamboo nails. The method includes horizontally laying down small bamboo plates, obtained by cutting a bamboo piece radially from the center axis thereof, in a press. The small bamboo plates are then pressed perpendicularly to the fibers to produce a compressed flat plate. Finally, the compressed flat plate is cut in the shape of a multangular column. Thus the strength of a wooden material is increased.

Claims

1. A method for manufacturing a wooden nail-like connector comprising a compressing process for compressing wooden pieces in a direction perpendicular to fibers thereof.

2. The method as set forth in claim 1, wherein:

in the compressing process, the wooden pieces are not laminated but arranged in a planar manner.

4. The method as set forth in claim 1, further comprising a cutting process for cutting the wooden pieces.

5. The method as set forth in claim 1, wherein:

in the compressing process, the wooden pieces are restrained in a direction perpendicular to the fibers and the direction of the compression.

6. The method as set forth in claim 5, wherein:

in the compressing process, the wooden pieces are restrained at their edge-portions.

7. The method as set forth in claim 5, wherein:

in the compressing process, the wooden pieces are held at respective surfaces to be compressed.

8. The method as set forth in claim 1, wherein:

during or after the compressing process, a thermal treatment is carried out at a temperature atmosphere of 100°

C. or higher and not higher than 220°

C.

9. The method as set forth in claim 1, wherein:

the compressing process is carried out after the wooden pieces are impregnated with a resin solution; and

the resin solution is cured during or after the compressing process.

10. The method as set forth in claim 1, wherein:

the compressing process forms, on one of edges of the compressed flat plate, a nail-head portion whose girth is larger than a rest of the compressed flat plate.

11. The method as set forth in claim 1, wherein one of the edges of the wooden nail-like connector is a sharp angled shape.

12. The method as set forth in claim 1, wherein:

the compressing process compresses, in a radial direction, small bamboo plates being arranged so that external sides and internal sides of the respective small bamboo plates are alternately face-up, the small bamboo plates being obtained by dividing a bamboo cylinder along a dividing line extending in a radial direction from a center of the bamboo cylinder.

16. A wooden nail-like connector being manufactured by using the method as set forth in claim 1.

19. A series of wooden nail-like connectors comprising a plurality of the wooden nail-like connectors as set forth in claim 16, the plurality of the wooden nail-like connectors being connected with one another.

3. The method as set forth in claim, wherein:

the wooden pieces are bamboo pieces; and

the wooden nail-like connector is a bamboo nail.

13. A method for manufacturing a compressed bamboo piece, comprising a compressing process for compressing bamboo pieces in a direction perpendicular to fibers thereof.

14. The method as set forth in claim 13, wherein:

in the compressing process, the bamboo pieces are not laminated but arranged in a planar manner.

15. The method as set forth in claim 13, wherein:

the compressing process compresses, in a radial direction, small bamboo plates being arranged so that external sides and internal sides of the respective small bamboo plates are alternately face-up, the small bamboo plates being obtained by dividing a bamboo cylinder along a dividing line extending in radial direction from a center of the bamboo cylinder.

18. A compressed bamboo piece being manufactured by using the method as set forth in claim 13.

17. A wooden nail-like connector wherein:

the wooden nail-like connector is manufactured by compressing a wooden piece in a direction perpendicular to fibers thereof; and

the wooden nail-like connector expands by absorbing moisture.