JP2567622B2 - Construction material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is used for beams, girders, columns, foundations, etc., with little deterioration over time such as bending, and has a long mechanical strength. The present invention relates to a building material having a circular cross section.

(Prior Art) A conventional columnar material is used by processing or sawing a raw wood and then drying it mainly by natural drying.

Further, the long columnar material is used by joining short columnar materials each having a connection end portion processed according to a conventional connection construction method corresponding to each purpose of use.

(Problems to be solved by the invention) Drying of lumber for cylinders that has been processed or lumbered with natural wood by natural drying inevitably requires a long time, and in addition, it requires a lot of drying place and manpower, which is one of the causes of increase in cost of lumber for cylinder It has become. However, if forced drying is to be carried out, a considerably large amount of equipment must be provided, so that the management cost is rather high and tends to be higher than natural drying.

Since domestic timber resources are decreasing and a lot of people are looking for imports in Japan, long column materials become expensive, and it is unavoidable to join short ones, but it takes a lot of man-hours to join them. There is a drawback that the mechanical strength of the joint is weak when it is used for beams. Therefore, it is reinforced with an iron band and used.

(Means for Solving Problems) The present invention has been made by paying attention to such problems in the related art, and a fan-shaped member is formed by appropriately dividing and cutting a columnar material in the length direction. As well as smoothing the drying,
This fan-shaped member is specially focused and bonded and fixed to the cross-sectional shape of the columnar material before cutting, thereby dramatically improving the characteristics and solving the above problems.

According to the present invention, a fan-shaped member formed by cutting and dividing a columnar material into three or more along a plane passing through an axial center in a longitudinal direction is shifted so that each end face does not have the same positional relationship as that before the division. Each in the lengthwise direction, or at least the positions of the adjacent end faces are shifted so that they do not have the same positional relationship as before the division, and each is focused in the lengthwise direction, and the fan-shaped member is cut and divided in the lengthwise direction. The surfaces are bonded and fixed to the adhesive material with a plurality of thick rods or metal fittings at appropriate intervals, and the adhesive material is applied to each end face intersecting in the length direction, and another member is connected and bonded and fixed. It is a building material that is scaled and has the cross-sectional shape of a cylindrical material before cutting and dividing.

(Function) Since the columnar material is cut and divided along the plane that passes through the axial center in the longitudinal direction into multiple fan-shaped members, the drying due to natural drying is significantly accelerated, and since it is evenly dried, there is a large bending and deviation. Does not occur much.

The position of each end face of the fan-shaped member is shifted so as not to have the same positional relationship as that before the division, and each fan-shaped member is focused in the length direction, or at least the positions of the adjacent end faces have the same positional relation as that before the division. The fan-shaped members are bundled in the lengthwise direction so that they do not become distorted, and the cut-divided surfaces in the lengthwise direction of the fan-shaped members are bonded and fixed together with an adhesive material with a thick rod, etc., and the end faces intersecting in the lengthwise direction. Since the adhesive material is applied to and the other members are connected and joined and fixed, the mechanical strength at each joint of each fan-shaped member is not lowered than the mechanical strength of the columnar material before cutting and is rather increased. In addition to uniform drying, there is almost no bending or distortion due to deterioration over time during use.

Further, since the mechanical strength at the joint of each end of each fan-shaped member is strong, it is possible to make a long-length building material having high mechanical strength by using a short-length cylindrical material.

(Embodiment) The present invention will be described in detail below based on the first embodiment shown in FIG. 1 and FIG. 1 is formed by cutting the cylindrical member 2 along the planes a ₁ and a _{2 which} are orthogonal to each other and passing through the axial center in the longitudinal direction, and is divided into 4
Fan-shaped members (1 ₁ , 1 ₂ , 1 ₃ , 1 ₄ ), 3 is 4 fan-shaped members
1 ₁ to 1 _4, the position of each end face 4 ₁ s, 4 _2, 4 _3, 4 _4, staggered so as not to split before the same positional relationship of the end face, with focuses each lengthwise , The cutting division surfaces 5 ₁ , 5 ₂ , 5 ₃ , 5 ₄ in the lengthwise direction of the fan-shaped member are fixedly joined to the adhesive material by the thick bar 6 with an appropriate interval, and the end faces intersecting in the lengthwise direction. An adhesive material is applied to 4 ₁ to 4 ₄ and another member is connected and joined and fixed, and is a building material that is long and has a cross-sectional shape of a cylindrical material before cutting and dividing.

This building material 3 is used as a material for beams, girders, columns, bases, and the like.

In this case, the columnar material 2 is cut along the planes a ₁ and a _{2 which} are orthogonal to each other and passes through the axial center in the lengthwise direction, and is divided into four to form four fan-shaped members 1 ₁ to
Since the 1 _4, together with the earlier remarkable drying by natural drying, it does not occur too large bending or deviations since is homogeneously dried.

The focusing position of the fan-shaped member 1 ₁ to 1 respective end faces of the ₄ 4 _{1-4 4,} staggered so as not to the same position relationship as before the division of the end face, each fan-shaped member 1 ₁ to 1 ₄ in the longitudinal direction At the same time, the cut-divided surfaces 5 _{1 to} 5 ₄ in the lengthwise direction of the fan-shaped member are bonded and fixed to the adhesive material with the thick rod 6, and the adhesive material is applied to the end surfaces 4 ₁ to ₄ 4 intersecting in the lengthwise direction. As a result, the mechanical strength at the joints between the end faces 4 ₁ to _{4 4} of each fan-shaped member 1 ₁ to ₁ 4 is lower than the mechanical strength of the cylindrical material before cutting, because the other members are connected and fixed together. In addition to the uniform drying, there is almost no bending or distortion due to deterioration over time during use.

Also, since the mechanical strength at the joints of the end faces 4 ₁ to _{4 4} of each fan-shaped member 1 ₁ to ₁ 4 is increased, a long length of high mechanical strength is used by using a column material with a short length. Can build construction materials.

3 and 4 showing the second embodiment of the present invention will be described below. Reference numeral 11 designates six fan-shaped members (11 ₁ , 11 ₂ ) formed by cutting the cylindrical member ₂ along _three surfaces a ₃ , a ₄ , a ₅ of equal angle passing through the axial center in the lengthwise direction and dividing into 6 parts. , 11 ₃ , 11 ₄ , 1
15 ₅ , 11 ₆ ), 13 are six fan-shaped members 11 _{1 to} 11 ₆ each having end faces 14 ₁ , 14 ₂ , 14 ₃ , 14 ₄ , 14 ₅ , 14 ₆ at least adjacent end faces before division. Are aligned so that they are not in the same positional relationship with each other, and each is focused in the lengthwise direction, and each cutting division surface 15 ₁ , 15 ₂ , 15 ₃ , 15, _{4 5} , 15 ₅ , 15 ₆ in the lengthwise direction of the fan-shaped member is bonded. bonding stuck in material and heavy bar 6, also joined secured by connecting a separate member to the adhesive material is applied to the end faces 14 ₁ to 14 ₆ intersecting lengthwise, in the long, and cut and divided before Is a building material formed in the cross-sectional shape of the columnar material.

The method of using the building material 13 is the same as that of the building material 3 in the first embodiment.

In this case, the fan-shaped members 11 ₁ to 11 _6, the length of the arc part of the fan-shaped member is shorter than the fan-shaped member 1 in the case of the first embodiment, and that the faster drying of natural drying,
Since the areas of the end faces 14 _{1 to} 14 ₆ which are joint surfaces with another fan-shaped member are smaller than those of the fan-shaped member 1, the end faces 14 ₁ to ₁ 1 after joining are joined.
4 ₆ has the effect of improving the mechanical strength. Other functions and effects are similar to those of the first embodiment.

A third embodiment of the present invention will be described below with reference to FIGS. Reference numeral 21 denotes eight fan-shaped members (21 ₁ formed by dividing into 8 parts by cutting along four planes a ₆ , a ₇ , a ₈ and a ₉ of equal angle passing through the axial center in the longitudinal direction of the columnar material 2). , 21 ₂ … 21 ₇ , 2
1 ₈ ), 23 are eight fan-shaped members 21 _{1 to} 21 ₈ which are opposed to each other symmetrical symmetrical fan-shaped members 21 ₁ and 21 ₅ , 21 ₂ and 21 ₆ , 21 ₃ and 21 ₇ , 21 ₄ and 21 ₈ 24 ₁ and 24 ₅ , 24 ₂ and 24 ₆ , 24 ₃ and 24 ₇ , 24 ₄ and 24 ₈ are set as a set, and the positions of both ends of each set are shifted so that they do not have the same positional relationship as before division, and each fan shape The members 21 _{1 to} 21 ₈ are converged in the length direction, and each cutting division surface 25 in the length direction of the fan-shaped member.
₁ , 25 ₂ ... 21 ₇ and 21 ₈ are bonded and fixed to the adhesive material with a thick rod, and the adhesive material is applied to each end face 24 _{1 to} 24 ₈ intersecting in the length direction, and another member is connected and bonded. It is a building material that is fixed, long, and formed in the cross-sectional shape of a cylindrical material before cutting and dividing.

This building material 23 is used in the same manner as the building materials 3 and 13 of the first and second embodiments.

The building material 23 has the same effects as the building material 13 of the second embodiment.

In the above-mentioned first to third embodiments, the columnar material 2 is cut along the plane passing through the axial center in the length direction and divided into even-numbered four or more pieces to form the fan-shaped members 1, 11, 21. This is because the efficiency of the sawing of the columnar material 2 is considered, and the same purpose can be achieved by not only this even division but also an odd division of three or more.

In addition, each cutting division surface in the length direction of the fan-shaped member 5 _{1 to} 5 ₄ , 15 ₁ to 1
Although 5 ₆ and 25 _{1 to} 25 ₈ are joined and fixed by the thick rod 6 with an appropriate interval, a rod-shaped metal fitting may be used instead of the thick rod 6.

(Effects of the Invention) Since the present invention has the above configuration, it has the following effects.

(1) Since the columnar material is cut and divided along the plane passing through the shaft core to form a fan-shaped member, the drying by natural drying is remarkably accelerated, which contributes to gradual cost reduction without requiring a drying place and manpower.

(2) Since the fan-shaped member that has been uniformly dried by natural drying is bonded and fixed to the adhesive material with a thick rod, there is almost no bending or distortion due to aging deterioration during use, and its characteristics are extremely excellent. There is.

(3) Since the mechanical strength at the joint between the end faces of the fan-shaped member can be increased, a construction material having a long length can be manufactured at low cost.

(4) Together with the above items, it will contribute to the expansion of sales and the promotion of corporate profits.

[Brief description of drawings]

The drawings show each embodiment of the present invention.
The drawing shows the first embodiment, FIGS. 3 and 4 show the second embodiment, the fifth embodiment.
FIG. 6 and FIG. 6 are the third embodiment, and are FIG. 1, FIG. 3 and FIG.
The figure is a perspective view for explaining the method of dividing the columnar material.
FIG. 4, FIG. 4 and FIG. 6 are schematic perspective views for explaining a method of assembling a building material. 1 (1 ₁ to 1 ₄ ), 11 (11 ₁ to _{1 1 6} ), 21 (21 _{1 to} 21 ₈ ) …… Fan-shaped member 2 …… Cylinder material 3, 13, 23 …… Building material 4 ₁ to 4 ₄ , 14 _{1 to} 14 ₆ , 24 _{1 to} 24 ₈ …… End face 5 _{1 to} 5 ₄ , 51 _{1 to} 51 ₆ , 25 _{1 to} 25 ₈ …… Cutting split face 6 …… Thick bar a ₁ , a _{2 to} a ₈ , a ₉ …… A plane that passes through the shaft center

Claims (3)

(57) [Claims] 1. A fan-shaped member formed by cutting and dividing a columnar material into three or more along a plane passing through an axis in the longitudinal direction so that the respective end faces do not have the same positional relationship as before the division. While shifting and converging in the lengthwise direction, each of the cutting division surfaces in the lengthwise direction of the fan-shaped member is bonded and fixed to the adhesive material with a plurality of thick rods or metal fittings spaced at appropriate intervals, and also in the lengthwise direction. Adhesive material is applied to each intersecting end face, another member is connected and bonded and fixed, and is a long-sized building material formed into a cross-sectional shape of a cylindrical material before being cut and divided. 2. A fan-shaped member formed by cutting and dividing a columnar material into three or more along a plane passing through an axis in the longitudinal direction so that at least the positions of adjacent end faces do not have the same positional relationship as before the division. And shift each to focus in the length direction,
Each cutting division surface in the longitudinal direction of the fan-shaped member is bonded and fixed with an adhesive material with a plurality of thick rods or metal fittings spaced at appropriate intervals,
Further, an architectural material formed by applying an adhesive material to each end face intersecting in the lengthwise direction and connecting and fixing another member in a continuous manner to form a long and cross-sectional shape of a columnar material before cutting and dividing. 3. A fan-shaped member formed by dividing the fan-shaped members so that the positions of the end faces of the fan-shaped members at the symmetrical positions opposed to each other and the positions of the end faces of the remaining fan-shaped members are shifted so as not to have the same positional relationship as before the division. The building material according to claim 2, wherein the respective fan-shaped members are bundled in the length direction.