JPH1119904A - Manufacture of curved laminated lumber having, small section and jig therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten manufacturing time of a curved laminated lumber per piece by a method wherein wood pieces wherein a height of a wood piece arranged at a center is high, and the height becomes gradually lower as they are separated left and right, and fixed to board material, a jig is inserted between respective laminated lumbers, and a plurality of the same shaped laminated lumbers are simultaneously curved. SOLUTION: A plurality of pieces of laminated lumbers wherein an adhesive is applied to a board material, and a necessary number of board materials 2 are piled up to a press device by referring to an inner diameter. The heighest wood piece is fixed to a center of one piece of the board material 2. A jig 3 fixing the wood piece which is made successively lower in height toward left and right both sides from a center, is set by being interposed between the laminated lumbers. It is formed being curved by successively pressure wringing. Thereby, a plurality of small section curved laminated lumbers which refer to the inner diameter following gradual bend by being guided with a flat board, can be simultaneously manufactured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a small-section curved laminated wood capable of simultaneously producing a plurality of small-section curved laminated woods, and a jig thereof.

[0002]

2. Description of the Related Art As a conventional technique, a curved glued laminated wood is produced by a press apparatus as shown in FIGS. 1 and 2, and an adhesive is applied to a plate (lamina) 2 based on an inner radius. Then, there is a method in which a glued laminated material in which a required number of plate materials 2 are overlapped is placed, and is fixed from the center of the press device to both sides, sequentially pressed and curved while being curved (see FIG. 2).

[0003]

However, according to the above-mentioned prior art, even when a large-sized wide pressing machine is used to produce a curved laminated wood having a small cross section, since the inner radius is a reference, one piece of material can be obtained in one step. Only production was possible. For example,
With a 200 cm wide pressing machine, only one piece of curved glued laminated wood having a width of 30 cm could be produced.

The present invention has been made in view of the above circumstances, and has solved the above-mentioned disadvantages of the prior art, and has a simple structure, whereby a curved laminated glue having a small cross section is centered between a plurality of glulams using a simple jig. A high piece of wood is fixed to the left and right sides, and a jig in which the lower piece of wood is fixed to the plate is interposed. It is an object of the present invention to provide a manufacturing method and a jig thereof.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and employs the following technical means. In the invention according to claim 1, an adhesive is applied to the plate material,
In a method of manufacturing a curved laminated wood having a small cross-section having the same inner radius by pressing the laminated wood formed by laminating a required number of plate materials toward both sides from the center with a pressing device and sequentially pressing the laminated glue. , The height of the piece of wood arranged in the center is high,
The wood pieces, whose height gradually decreases as they move away from each other, are fixed at equal intervals to the board, and a jig that is crescent-shaped when viewed from the front is inserted between each of the glued lumber, so that a plurality of glues of the same shape are glued. The technical means of simultaneously bending the material was adopted.

According to the second aspect of the present invention, the first aspect is provided.
In the method of manufacturing curved glued laminated timber of small cross section in the above, the technical means of fixing the wooden pieces arranged in the center at the highest and the wooden pieces gradually decreasing gradually toward the left and right sides at equal intervals to the plate material Adopted.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is a jig in which the tallest piece of wood is fixed to the center of a plate, and the height of the piece of wood gradually decreases gradually toward the left and right sides from the center. The glue is applied to the plate material based on the inner radius, the required number of plate materials are overlapped, and the sheet material is laminated to the left and right sides from the center of the press device, and sequentially pressed and fixed while bending and fixing. It is a manufacturing method of.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is an overall assembly diagram showing a state in which a glued laminated material in which a required number of plate materials are overlapped is set in an embodiment of a press apparatus (a conventionally known press machine) according to the present invention.

FIG. 2 shows a press unit according to an embodiment of the present invention, in which a glued laminated material in which a required number of plate materials are overlapped is sequentially pressed from both sides from the center to form a curved glued laminated material. It is the whole assembly drawing which shows a state.

FIG. 3 is an explanatory view showing a state in which an embodiment of the jig of the present invention is set between glued laminated materials.

In the case of producing a curved laminated wood, as shown in FIG. 1, an adhesive is applied to a plate material (lamina) 2 based on the inner radius in a press machine, and a required number of the plate materials 2 are laminated. A plurality of glued laminated timbers are prepared, and the tallest piece of wood is fixed to the center of a single plate between these glued lumbers, as can be understood from the one shown in FIG. A jig 3 is attached to the left and right sides from the center, and is fixed to a piece of wood whose height is gradually reduced. The jig 3 is designed to have a height and width determined by various design calculations based on the inner radius and the height of the back. In this state, in the pressing device in which the glued laminated wood shown in FIG. 1 is set, as shown in FIG. Is the way.

It is considered that a jig shaped like a crescent may be used as the jig 3, but the curved laminated timber is fixed by an adhesive by gradually bending a straight plate.
Since it is formed, a jig previously formed in a crescent shape cannot be used. On the other hand, the jig of the present invention is a jig 3 in which a thick piece of wood is fixed to the center of a straight plate and goes to both sides, and a thin piece of wood is fixed in sequence. A plurality of small-section curved glulams based on the inner radius of the trail can be simultaneously formed.

Further, the jig 3 of the present invention can be used as a discarded plate or can be used again.

[0014]

According to the present invention, as a result of employing the above configuration,
The following effects can be obtained. (1) It is possible to simultaneously produce a plurality of small-section curved glulams. (2) The time required to produce the curved glued laminated timber per piece could be greatly reduced.

[Brief description of the drawings]

FIG. 1 is an assembly view showing a state in which a glued laminated material in which a required number of plate materials are overlapped is set in a curved glued glue manufacturing press apparatus of the present invention.

FIG. 2 is an assembly view showing a state in which a glued laminated material obtained by laminating a required number of plates in a curved glued glue manufacturing press device of the present invention is pressed and curved by a press device.

FIG. 3 is an enlarged front view showing a state in which one embodiment of the jig of the present invention is set between glued laminated materials.

[Explanation of symbols]

 1 Press machine 2 Board material 3 Jig

Claims (2)

[Claims] 1. A laminated material formed by applying an adhesive to a plate material and laminating a required number of plate materials, is pressed to both sides from the center by a press device, and is sequentially pressed to form an inner radius by a one-step press. In the method of manufacturing a curved laminated timber having the same small cross section, the height of the wood piece disposed at the center is high, and the wood pieces whose height gradually decreases as they move away from side to side are fixed to the board at equal intervals, and A method of manufacturing a small-section curved glued laminated wood, wherein a plurality of glued laminated woods of the same shape are simultaneously bent by inserting a jig which becomes crescent-shaped between the glued laminated woods. 2. A method for producing a curved laminated glued wood having a small cross section according to claim 1, wherein a piece of wood disposed at the center is the highest, and a piece of wood which gradually decreases gradually toward both left and right sides is used as a board. A jig for manufacturing a small-section curved glued laminated wood characterized by being fixed at intervals.