Title:
FINGER JOINT CUTTER, WOOD PRODUCT, AND METHOD FOR MANUFACTURING WOOD PRODUCT
Document Type and Number:
WIPO Patent Application WO/2020/262118
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a finger joint which exhibits high strength even when the finger length is made short. This finger joint has a finger length L of 12.0 mm or less, a scarf inclination ratio tanθ of 1/8.8 or less, and an adhesive area s per unit cross-sectional area (1 mm2) in a butting direction of 4.67 mm2 or more. This wood product is formed by vertical joining using this finger joint. The wood product is any one of a structural laminated wood laminar, a cross laminated timber (CLT) laminar, and a vertical joining material for a framework wall construction method structure. These are all supposed to be used for parts on which large external force will be applied, and thus are required to be of high strength.
Inventors:
TSUCHIYA ATSUSHI (JP)
HIRAMATSU YASUSHI (JP)
FUJIMOTO KIYOHIKO (JP)
HIRAMATSU YASUSHI (JP)
FUJIMOTO KIYOHIKO (JP)
Application Number:
PCT/JP2020/023614
Publication Date:
December 30, 2020
Filing Date:
June 16, 2020
Export Citation:
Assignee:
KANEFUSA KNIFE & SAW (JP)
FOREST RES AND MANAGEMENT ORGANIZATION (JP)
FOREST RES AND MANAGEMENT ORGANIZATION (JP)
International Classes:
B27D1/10; B27F1/16
Foreign References:
| JP2003048203A | 2003-02-18 | |||
| JPH0336804U | 1991-04-10 | |||
| JPH0999404A | 1997-04-15 |
Other References:
KANAMORI, KATSUYOSHI,: "Cutting amount and cutting area", "3. Experimental procedure", "4. Experimental results and discussion", JOURNAL OF THE HOKKAIDO FOREST PRODUCTS RESEARCH INSTITUTE, 1986, pages 2 - 7
Attorney, Agent or Firm:
OHKAWA, Hiroshi (JP)
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