JPH0126405Y2 - - Google Patents

Description

[Detailed explanation of the invention] Small-diameter wood such as thinned wood or backwood from which square pillars of standard size have been cut has little utility value and is low in price.

The present invention is to remanufacture this small diameter wood into a larger diameter one by gluing it together, and also to perform reinforcement work to improve its strength.It can be used not only for general use, but also for construction or shipbuilding scaffolding where strength is required. It has also been designed to be fully usable.

For this reason, in the present invention, a small-diameter piece of wood is cut lengthwise to produce a material with a trapezoidal cross section, that is, a laminar, and after a large number of these laminars are arranged in parallel, the small-diameter piece of wood is also cut lengthwise into the triangular gap between each lamina, and its cross section is forms an equilateral triangle, and a V-shaped lamina coated with adhesive on both hypotenuses is inserted, and the V-shaped lamina is adhered to both adjacent laminars by pressing from above to create the laminated board shown in Figure 3.

On top of this laminated plate, a large number of other laminated plates are bonded in opposite directions to each other to produce the laminated material shown in FIG. 4.

This laminated material is vertically cut to a required width to produce the laminated plate shown in FIG. 4.

Next, the two laminates are superposed, and a reinforcing wire in the form of a wire mesh is provided between them as shown in FIG. 5, and then bonded to form a product.

An embodiment of the present invention will be described with reference to the drawings.

(1) Laminated board 1 is made of small-diameter wood such as thinned wood or backwood used in the present invention, and its cross section is trapezoidal and has a diameter that is larger than the diameter of the front end 2 as shown in Figure 1. It is a laminar whose rear end portion 3 has a narrow diameter.

In the present invention, a large number of laminars 1 are used in parallel, but since there is a difference in diameter between the front end 2 and rear end 3 of each laminar, in order to adjust this difference, the front end of the first laminar The rear end 3 of the next laminar is placed next to part 2, and the front end 4 of the next laminar is placed next to this rear end 3, and so on. The sections are cut to have the same width, and both sides are firmly supported between a pair of support frames to prevent each laminar from moving.

Next, reference numeral 4 is a V-shaped laminar for adhering laminar 1 with an equilateral triangular cross section, and after applying adhesive to its two sides 5 and 6, a large number of laminars 1 are firmly supported between the support frames as described above. After being inserted into each of the triangular gaps 7 formed between them, they are adhered from above by press working, and the upper surfaces of the laminated boards 8 formed by each lamina 1 and each V-shaped lamina 4 are made flush and mutually reinforced. It became sturdy.

Reference numeral 9 in the figure indicates a joint portion of the laminated board 8.

In the present invention, since the cross section of the V-shaped laminar 4 is particularly equilateral, the following excellent effects have been achieved.

Conventionally, another trapezoidal lamina (a) with adhesive applied to one oblique side was inserted into the gap between a large number of parallel trapezoidal laminars (a) in the opposite direction and bonded from above by press working, but in this case, Corner b or c at the bottom of the trapezoidal lamina may dig into the oblique sides of the trapezoidal laminas on both sides, or be obstructed by the joints of the oblique sides, making it impossible to reach the bottom surface, making it difficult to finish the surface of the laminated board to the same plane. It was hot.

Further, at this time, there was a drawback that the adhesive was peeled off from the coated surface at corner portions b or c, and the entire surface was not bonded uniformly.

In the case of adhesive application work, each laminar a has a different diameter, and even a single laminar has different diameters at its leading and trailing ends. As a practical matter, it is difficult to apply the coating with a machine like this, and there was a problem in that a large amount of uncoated products were generated.

On the other hand, since the V-shaped laminar 4 of the present invention has a wedge-shaped cross section with an equilateral triangle, it descends straight without cutting into the hypotenuses of the adjacent laminars 1, 1 or being obstructed by joints. The surfaces of the V-shaped laminar 4 can be finished on the same plane, and the adhesive can be bonded uniformly over the entire surface without peeling off at the tip of the descending V-shaped laminar 4.

When applying adhesive, the same machine can apply a large amount of adhesive uniformly to the entire surface, eliminating the risk of unapplied adhesives.

(2) Laminated material A laminated material 10 is produced by stacking and bonding a large number of trapezoidal laminars 1 on the laminated board 8 in opposite directions to each other as shown in FIG.

(3) Laminated Plate A laminated board 11 is prepared by cutting the laminated material 10 vertically to a required width as shown in FIG.

The cut surface of this laminated board 11 was straight-grained or semi-straight-grained, and it was extremely strong.

(4) Reinforcement wire A reinforcing wire 12 in the form of a strong wire mesh was attached vertically and horizontally between the two laminates 11 and 11, and then bonded to form a product.

As a result, it has become a sturdy scaffolding board that can be used not only for general use, but also for construction or shipbuilding without fear of breakage.

When used as a scaffolding board, an appropriate number of small holes 14 are provided for insertion of ropes, wires, etc.

As described above, the present invention uses a V-shaped lamina 4 with an equilateral triangular cross section, and a laminated material 1 with high strength.
using a laminate 11 cut vertically from 0;
It has excellent effects in various respects, such as the use of reinforcing wire 12 in the form of a wire mesh.

[Brief explanation of the drawing]

Figure 1 is a plan view of the laminar, Figure 2 is an end view of the V-shaped laminar, Figure 3 is a perspective view of the laminated board, Figure 4 is a perspective view of the laminate and the laminate, and Figure 5 is the laminate. FIG. 6 is a diagram showing reinforcing wires placed thereon, FIG. 6 is a diagram showing another trapezoidal lamina inserted in the opposite direction between trapezoidal laminars, and FIG. 7 is a diagram showing a V-shaped laminar inserted between trapezoidal laminars. 1... Laminar, 4... V-shaped laminar, 7...
Gap, 8... Laminated board, 10... Laminated material, 11...
Laminated board, 12... Reinforcement wire, a... Trapezoidal laminar, b, c... Corner portion.

Claims (1)

[Scope of utility model registration request] A V-shaped laminar with an equilateral cross section and adhesive applied to both hypotenuses is inserted and bonded into each triangular gap formed between a large number of parallel laminars, and a large number of these laminar boards are bonded together. A small-diameter product made by laminating and bonding in the opposite direction to make a laminated material, cutting this laminated material perpendicularly to the required width to make a laminated plate, then inserting a reinforcing wire in the form of a wire mesh between the two laminated plates and bonding. Laminated wood.