JP2016087796A - Wooden sill and method of manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wooden sill actively using cedar lumber from thinning, and a method of manufacturing the same.SOLUTION: Drying treatment is applied to each of rectangular cross-section cedar lumber from thinning, which constitutes a main material 11, and a reinforcing material 12 made of any one of a Japanese cypress plate material, a white-cedar leaf plate material and a pine plate material. Thus, a water content of each of them is set to be in the range of 13-15%. Glued laminated wood is obtained by joining the reinforcing material 12 onto the main material 11 by high-frequency heating using an adhesive. Subsequently, preservative treatment is applied thereto.SELECTED DRAWING: Figure 1

Description

The present invention relates to a wooden base placed on a concrete foundation via a sheet material (horizontally) and a method for manufacturing the same.

Conventionally, as a foundation to be placed on a concrete foundation, for example, as described in Patent Document 1, upper and lower outer layer materials selected from Karamatsu, Hiba, Hinoki, Rice Hinoki, Akamatsu, Kuromatsu, Rice Matsu Structural laminates have been proposed in which an inner layer material selected from, too much, too much rice, spruce, soup, rice soup is selected from fir, ezomatsu, tomatsumatsu and benimatsu.
In recent years, too much thinned wood has been generated, and it is difficult to dispose of it. Patent Document 2 proposes to use overthinned wood as laminated wood.

JP 2009-932 A JP 2004-74444 A

However, the structural laminated material described in Patent Document 1 has a problem that the number of layers is large and the manufacturing is complicated, and when it is used as a foundation, a hard material is also used for the surface in contact with the concrete foundation. Therefore, there is a problem that the material cost becomes high.
Similar to Patent Document 1, the technique described in Patent Document 2 is a method of stacking three or more plate materials, which increases the manufacturing cost and does not disclose the use as a base.

This invention is made | formed in view of this situation, and it aims at providing the wooden base which uses an excessive thinning material actively, and its manufacturing method.

The wooden foundation according to the first aspect of the present invention is the same as the above thinned material with a thickness of 25 to 40 mm on the thinned material of a rectangular cross section (including a square, hereinafter the same) constituting the main material. A reinforcing material made of any one of a width cypress plate material, a cypress plate material and a pine plate material was bonded. In addition, it is preferable that the wooden base which concerns on this invention is immersed in the antiseptic | preservative liquid after drying.

The wooden base which concerns on 1st invention WHEREIN: It is preferable that the thickness of the said overthinning material exists in the range of 80-120 mm.

The manufacturing method of the wooden base according to the second invention that meets the above-described object is the drying of the reinforcing material composed of any one of the thinned wood having a rectangular cross-section constituting the main material, and the cypress board material, the laver board material, and the eyeglass board material, respectively. A first step to treat the moisture to 13-15%;
A second step of joining the reinforcing material on the main material by high-frequency heating using an adhesive to form a laminated material;
And a third step of preserving the laminated material.

In the method for manufacturing a wooden base according to the second invention, it is preferable that the antiseptic treatment is performed by immersing the laminated material in an antiseptic solution.

And in the manufacturing method of the wooden base which concerns on 2nd invention, the dimension of the said excessive thinning material exists in the range whose width is 115-140 mm and thickness is 80-120 mm, The width | variety of the said reinforcing material is the said excessive thinning The thickness is preferably in the range of 25 to 40 mm, the same as the material dimensions.

In the manufacturing method of the wooden base according to the first invention and the wooden base according to the second invention, since the overthinned material is used as the main material, the overthinned material can be effectively used.
Furthermore, since the wooden base has a portion that is placed on a foundation (for example, a concrete foundation) and is made of thinned wood, it can absorb vibrations and the like generated by an earthquake and the like, thereby forming a more robust building.
Furthermore, since any one of the cypress plate material, the cypress plate material and the pine plate material is placed on the thinned timber having a rectangular cross section, any one of the cypress plate material, the cypress plate material and the pine plate material is used as a reinforcing material for the timber thinned material. Concentrated load can be dispersed by working, pillars, etc.

In particular, in the manufacturing method of the wooden base according to the second invention, moisture is 13 to 15% in any one of the over-thinned material that is the main material and the cypress plate material, the laver plate material, and the eyelash plate material that are the reinforcing materials. Thus, the immersion treatment of the antiseptic solution is promoted.

It is an exploded sectional view of the wooden foundation concerning one embodiment of the present invention. It is a flowchart which shows the manufacturing method of the wooden base. (A), (B) is explanatory drawing which shows the use condition of the same wooden base, respectively.

Next, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in FIG. 1, a wooden base 10 according to an embodiment of the present invention includes an overthinned material having a rectangular cross section constituting a main material 11, and a cypress plate material and a laver plate material that are bonded thereon as a reinforcing material 12. And any one of the eyelash plate materials. These will be described in detail below.

The cross-sectional dimensions of the main material 11 are a width w of 115 to 140 mm, for example, 105 mm and 120 mm, and a thickness (height) h of 80 to 120 mm, for example 90 mm. The main material 11 is manufactured using an over-thinned material 13 having a substantially circular cross section with a diameter of about 120 to 220 mm. The four surfaces 14 to 17 of the main material 11 are subjected to planar processing using scissors or the like. Since the excessively thinned material 13 constituting the main material 11 is a young tree, it is soft in the excess material.

On the other hand, as for the reinforcing material 12 stuck on the main material 11, the width a is the same as the width w of the main material 11, and the thickness (height) b is 25-40 mm, for example, 30 mm. In addition, when the reinforcing material 12 is joined to the main material 11, it becomes preferable that it becomes a square cross section.
In particular, in the present invention, a cypress plate material (or a cypress plate material or a pine plate material) is used as a reinforcing material, and the hardness is twice or more that of a normal one. Compared with hinoki cypress, the cypress has large characteristics in any of compressive strength, bending strength, shear strength, and bending Young's modulus. There are also materials with higher compressive strength and bending strength than hinoki (for example, chestnut, beech, keyaki, etc.), but it is difficult to obtain a straight material and is expensive and is not suitable for mass production. .

A reinforcing material 12 is attached to and integrated with the main material 11, and the main material 11 and the reinforcing material 12 are impregnated with an antiseptic solution. Since the antiseptic is usually mixed with the antiseptic, the wooden base 10 made of a laminated material in which the main material 11 and the reinforcing material 12 are integrated has excellent corrosion resistance and ant resistance. Although the dimension (length) of the wooden base 10 is arbitrary, it is formed in 3m, 4m, 6m etc., for example. Here, as the antiseptic solution (preservative), for example, creosote, boric acid type preservatives, or other preservatives may be used.

Then, the manufacturing method of the wooden base which concerns on one embodiment of this invention is demonstrated, referring FIG. Overthinning material 13 having a predetermined diameter or more is collected (step S1), and the periphery is cut to form a main material 11 having a rectangular cross section. In this case, the surface 15 on which the reinforcing material 12 is placed is flattened with a scissors or the like, but all four surfaces 14 to 17 may be flattened (step S2). Next, this main material 11 is put into a drying furnace to make the moisture 13 to 15% (drying process, step S3). The moisture measurement is preferably performed while measuring the weight of the main material 11.

Next, a reinforcing material 12 having a predetermined dimension is prepared. As the reinforcing member 12, any one of a hinoki plate material, a lark plate material, and a lash plate material, which is relatively stable and inexpensive, is used. The width of the reinforcing material 12 is the same as the width of the main material 11, and the four surfaces (side surface, front and back surfaces) are flattened with scissors or the like (step S4). And the drying process of this reinforcing material 12 is performed, and the moisture contained is made into 13 to 15% (step S5). If the water content is less than 13%, it is too dry, the wood shrinks, and if it exceeds 15%, the water content is too high to perform the next high frequency press (drying by microwave).

Thereafter, an adhesive (woodworking adhesive, for example, an isocyanate-based adhesive) 15a is applied to one or both of the dried main material 11 and the dried reinforcing material 12, and a high frequency ( Microwave heating is performed (step S6). As a result, the main material 11 and the reinforcing material 12 are integrated into a laminated material. The laminated material is immersed in an antiseptic solution, and the antiseptic solution is impregnated into the laminated material (preservation treatment). Since the main material 11 and the reinforcing material 12 are dried, the permeability of the antiseptic solution is improved. The penetration of the antiseptic solution is preferably carried out at normal pressure, but it is also possible to perform pressure treatment after reducing the pressure (step S7).

With the above processing, the wooden base (product) 10 is completed (step S8). The impregnation treatment with the antiseptic solution may be performed immediately after the main material 11 and the reinforcing material 12 are dried, and then the joining treatment may be performed. Alternatively, the laminated material may be soaked in an antiseptic solution and then dried again.

Next, the use of the wooden base 10 will be described with reference to FIGS. 3 (A) and 3 (B). On the concrete foundation 20 having a flat top, a waterproof sheet 21 having a cushioning property such as felt or a simple buffer sheet is disposed (may be joined), and the wooden base 10 is placed thereon. A hole 23 for inserting the anchor bolt 22 and a hole 25 for standing the pillar 24 are formed in the wooden base 10 in advance.

In this way, by using the wooden base 10, the main material 11 can buffer large vibrations and shocks, and the reinforcing material 12 can be dispersed toward the main material 11 even if it receives a concentrated load from the column 24. .
Furthermore, effective use of thinned wood that has been difficult to dispose of in the past is promoted.

The present invention is not limited to the above-described embodiment, and the configuration thereof can be changed without changing the gist of the present invention.

10: Wooden base, 11: Main material, 12: Reinforcing material, 13: Over-thinned wood, 14-17: Surface, 15a: Adhesive, 20: Concrete foundation, 21: Waterproof sheet, 22: Anchor bolt, 23: Hole , 24: pillar, 25: hole

Claims (5)

A reinforcing material made of any one of a hinoki board material, a labyrinth board material and a pine board material having a thickness of 25 to 40 mm and the same width as that of the over thinning material having a rectangular cross section constituting the main material. A wooden base characterized by. 2. The wooden base according to claim 1, wherein the thickness of the overthinned wood is in the range of 80 to 120 mm. A first step in which the thinning material having a rectangular cross-section constituting the main material and the reinforcing material consisting of any one of the cypress plate material, the hail plate material and the eyelash plate material are each subjected to a drying treatment, and the water content is 13 to 15%,
A second step of joining the reinforcing material on the main material by high-frequency heating using an adhesive to form a laminated material;
A method for manufacturing a wooden base, comprising: a third step of preserving the laminated material. 4. The method of manufacturing a wooden base according to claim 3, wherein the antiseptic treatment is performed by immersing the laminated material in an antiseptic solution. 5. The method for manufacturing a wooden base according to claim 3, wherein the thinned thinning material has a width of 115 to 140 mm and a thickness of 80 to 120 mm, and the reinforcing material has a width of the thinning material. A method for manufacturing a wooden base, characterized in that the thickness is in the range of 25 to 40 mm.

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