JPS59140011A - Manufacture of aggregate floor board utilizing small-diameter wood with heart - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention relates to a method for producing laminated floorboards that increase strength against impact loads, etc., by utilizing the characteristics of lumber products sawn from wood with a diameter of Japanese cedar, Japanese cedar, cypress, etc./J1 diameter. .

Feelings d\The diameter tree is immature wood, 1. Even if laminated timber is manufactured using these materials, the strength is 30% lower than that of mature timber.
% is generally low, making it difficult to use as a structural material.

This invention is a method for manufacturing laminated floorboards that utilizes the fact that the annual rings of small-diameter trees act similar to pipes, increasing their strength against impact loads and the like.

The laminated floorboard according to this invention has a bending strength close to that of mature wood, so it is being tested in practice as a floorboard for fighting techniques in kendo halls, etc. The manufacturing method was developed based on the drawings. The explanation is as follows.

The t-side of Komochi small-diameter wood is sawn to make Komochi horns and Komochi wari, which have no round bodies, and are then split into two pieces with the center removed to make flat pieces. The water-containing part of the wood is dried to around 9 to 7396 degrees. After removing the defects such as curves, circles, body, warpage, dead joints, etc. of the dried kojiri Hiragō zahihiro, short lengths S of arbitrary length are made. 6 Apply adhesive 1 to the processed surface of finger 1, press and join the short material O-/2 to the short material so that the core and the material surfaces of the tree core are connected to each other, furnace, Furthermore, draw short pieces Otsu-3 to Otsu-n, and continuous welding 9 by various methods.
A straight member 7 of a desired length is made.

The vertically spliced straight timbers 7 are finished with a smooth width surface, and an adhesive such as resorcinol is applied to that surface. The manufacturing method of laminated floorboards is made by pressing until the adhesive becomes hard, or the method of manufacturing laminated floorboards that is made by pressing until the adhesive becomes hard, or the method of manufacturing floorboards that is used for floorboards that do not bear a relatively large load, and the method of adjusting the spacing between joists in flooring construction. When the floorboard is to be shortened, the thickness of the floorboard is divided into two parts, and the gap between the two parts is cut and finished using a method of building laminated floorboards.

[Brief explanation of drawings]

Figure 1 shows the outline of the manufacturing process of the present invention.
The figures show the flat harp of the present invention, Fig. 31, and Fig. 3 show the side instep and the first
The figure is a cross-sectional view taken along the 8-Δ line in Figure 2, and Figure 7 is a cross-sectional view taken along line 8-Δ of Figure 2.
It is a cross-sectional view taken along the line BB in the figure. Patent applicant Minoru Ando 1 Numa 1 ■ Otsu ] Dodora 2o / Shi 1, Cod

Claims (1)

[Claims] As shown in factors 7 to 7 of the first factor, when vertically splicing two pieces of wood, the joint and seam are made so that the center part and the heart part appear continuously on the same width surface, and then the vertical splice material 7 is Figure 1 g and 10 are as shown in the figure. In addition, the laminated floorboard is treated with laminated adhesive so that the sapwood part and the sapwood part// are joined, and the thickness of the laminated floorboard is divided into parts as shown in Fig. 1, Fig. 9, Fig. 60, and Fig. 7. A manufacturing method for laminated floorboards.