JP2000142795A - Reinforced wooden box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent flexure, deformation or the like while advantages of wood are maintained by providing an integrated fiber-reinforced resin layer on a part of an external face of a body of a wooden box assembled in a parallelopiped. SOLUTION: The reinforced wooden box comprises a box body 2 assembled in a parallelopiped having four side walls 2a, 2b, 2c, 2d and a bottom wall 2e and a lid 3. On a part of an external face of the body 2 of such a wooden box 1, that is on the external face of the bottom wall 2c and on the external walls of one pair of opposite side walls 2a, 2c, an integrated fiber-reinforced resin layer 4 is provided continuously in a strip between end rims of the other pair of opposite side walls 2b, 2d. Further, the integrated fiber-reinforced resin layer 4 is provided on a part of an external face of the lid 3. Thus flexure, deformation or the like can be prevented while advantages of wood can be maintained, and transportation and storage can be facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a reinforced wooden box,
More specifically, the outer surface is reinforced with a fiber-reinforced resin layer, and in particular, large-sized ceramics, scrolls, maps, long objects such as scrolls such as tapestries, or art objects such as large-area objects such as platters, The present invention relates to a reinforced wooden box suitable for storing, transporting, and storing cultural properties.

[0002]

2. Description of the Related Art Conventionally, art objects such as ceramics, scrolls, scrolls such as scrolls, maps, tapestries, etc., or wide-area objects such as dishes, cultural assets, etc. are stored, transported, and stored. Therefore, it has a moderate bending stiffness, excellent strength, light weight, and also has excellent humidity adjustment function and insect repellent function, and has a surface hardness that does not easily damage the stored material surface. For that reason, wooden boxes such as paulownia, pine, cedar, and cypress are used.

[0003] However, when the above-mentioned objects such as arts and cultural assets are large and their weight is increased, they are made of wood.
There is an inherent problem that the box itself bends and deforms, which leads to damage to the contents. On the other hand, it is conceivable that the box itself is formed of a thermosetting resin or a thermoplastic resin reinforced with reinforcing fibers such as glass fiber, but in this case, the above-mentioned features inherent in the wooden box are considered. It is difficult to express.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned prior art. Accordingly, the present invention provides a wooden box which is prevented from bending, deforming, etc. while utilizing the inherent characteristics of wood. The purpose is to provide.

[0005]

According to the present invention, at least a part of the outer surface of a box body of a wooden box comprising a box body and a lid assembled into a rectangular shape having four side walls and a bottom wall. A reinforced wooden box provided with a modified fiber reinforced resin layer.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of a reinforcing wooden box according to the present invention.
(A) is a perspective view thereof, (b) is an enlarged sectional view taken along the line BB, and FIG. 2 shows another embodiment of the reinforcing wooden box of the present invention.
(A) is its perspective view, (b) is the BB line expanded sectional view.

1 and 2, a reinforced wooden box 1 according to the present invention comprises a box body 2 and a lid 3 assembled in a rectangular shape having four side walls 2a, 2b, 2c, 2d and a bottom wall 2e. At least a part of the outer surface of the box body 2 of the wooden box,
In the case of FIG. 1, the outer surface of the bottom wall 2 e and the outer surfaces of the two opposing side walls 2 a and 2 c are attached to the other opposing side wall 2.
b, an integrated fiber reinforced resin layer 4 is provided in a continuous manner between the edges of the band, and in the case of FIG. 2, the outer surface of the bottom wall 2 e and one of the opposite sides are provided. Walls 2a, 2c
On the outer surface of the other side wall 2b, between the edges of the opposite side wall 2d, and on the outer surface of the bottom wall 2e and the outer surface of the other opposite side wall 2b, 2d. ,
An integrated fiber reinforced resin layer 4 is provided so as to be continuous in a band shape between the edges of 2c, and the outer surfaces of the two opposing side walls 2a, 2c and the outer surface of the bottom wall 2e are provided. And a fiber-reinforced resin layer 4 integrated in a strip shape. 1 and 2, the lid 3
An integrated fiber-reinforced resin layer 4 is also provided on a part of the outer surface of the resin.

In the present invention, the fiber reinforced resin layer 4
May be provided on the entire outer surfaces of the box body 2 and the lid 3. However, in order not to lose the humidity adjustment function and the like in the wooden box body 2 and the lid 3, the It is preferable that the fiber reinforced resin layer 4 does not exist in at least 1/3 of the total surface area.
In particular, the bottom wall 2e, and the bottom wall 2e and each side wall 2a, 2
It is preferably provided near the junction with b, 2c and 2d.

In the present invention, the box body 2 and the lid 3
The integration of the fiber reinforced resin layer 4 on the outer surface is not particularly limited. For example, the fiber reinforced resin layer 4 may be bonded to the outer surface or mechanically fixed with screws, bolts, or the like. In the case of adhesion, particularly when the fiber reinforced resin layer 4 is provided on the entire outer surfaces of the box body 2 and the cover 3, the humidity adjusting function of the box body 2 and the cover 3 is used. In order not to lose the properties and the like, it is preferable to use partial adhesion such as point-like, linear, or partial surface-like.

In the present invention, as the reinforcing fibers in the fiber reinforced resin layer 4, for example, high elastic fibers such as glass fibers, aramid fibers, and carbon fibers are used. Among them, carbon fibers are used in view of elastic modulus and specific gravity. , Above all, the tensile modulus is 50t
/ Mm ² or more is preferable, and these reinforcing fibers are preferably continuous fibers.

Examples of the resin include thermosetting resins such as epoxy resin, phenol resin and unsaturated polyester resin, polyolefin resins such as polypropylene and polyethylene, polyamide resins, polyethylene terephthalate, polybutylene terephthalate and the like. Thermoplastic resins such as a saturated polyester resin, a polycarbonate resin, a polyacetal resin, and a polystyrene resin, among which a thermosetting resin is preferable, and an epoxy resin is particularly preferable.

The ratio between the reinforcing fibers and the resin in the fiber-reinforced resin layer 4 is not particularly limited, but usually the resin is 20 to 70% by weight and the reinforcing fibers are 80 to 30% by weight. % By weight, preferably 30 to 5% by weight of the resin.
At 0% by weight, the reinforcing fiber is about 70 to 50% by weight.

In the present invention, in order to provide the fiber reinforced resin layer integrally on the box body and the outer surface of the lid, for example,
A prepreg formed by impregnating the liquid or solid material in the case of the thermosetting resin with the fibers laid or woven in one direction, and adhering the powder or granules in the case of the thermoplastic resin, is pressed. Laminated and placed in a mold, autoclave, oven, etc., and heat-molded into a desired shape, and the molded body is integrated with the outer surface of the box body and lid body by the above-described integration method, or is aligned in one direction. The woven fiber is impregnated with a liquid material of the thermosetting resin of a room temperature curing type, and a prepreg formed by impregnating with or without a room temperature curing type adhesive is applied to the outer surface of the box body and the lid body. By pressing and curing, a method such as integration with the outer surface of the box body and the lid body can be employed.

The cold-setting adhesive used here is appropriately selected from, for example, vinyl acetate resin, acrylic resin, phenol resin, urethane resin, unsaturated polyester resin, epoxy resin and the like. .

The thickness of the fiber reinforced resin layer is 0.1
The thickness is preferably about 20 mm, and the fiber reinforced resin layer is preferably coated with a coating, a resin film, or the like.

[0016]

According to the present invention, bending and deformation are prevented while taking advantage of the inherent characteristics of wood. Particularly, long objects such as large ceramics, scrolls, maps, tapestry and other scrolls are used. Alternatively, it is possible to provide a reinforced wooden box suitable for storing, carrying, and storing art objects such as large-sized objects such as large plates, cultural assets, and the like.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a reinforced wooden box of the present invention, wherein (a)
Is a perspective view thereof, and (b) is an enlarged sectional view taken along the line BB.

FIG. 2 shows another embodiment of a reinforced wooden box of the present invention,
(A) is its perspective view, (b) is the BB line expanded sectional view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1; Reinforced wooden box 2; Box main body 2a; Side wall 2b; Side wall 2c; Side wall 2d; Side wall 2e; Bottom wall 3; Lid 4;

Claims (8)

[Claims] An integrated fiber reinforced resin layer is formed on at least a part of the outer surface of a wooden box body including a lid body and a box body assembled into a rectangular shape having four side walls and a bottom wall. A reinforced wooden box characterized by being provided. 2. The fiber-reinforced resin layer is provided on the outer surface of the bottom wall or on the outer surface of one of the opposing side walls in a continuous manner between the edges of the other opposing side wall. Item 2. A reinforced wooden box according to Item 1. 3. The reinforced wooden box according to claim 1, wherein the fiber reinforced resin layer is continuously provided in a strip shape on the outer surfaces of the two opposing side walls and the outer surface of the bottom wall. 4. The reinforced wooden box according to claim 1, wherein the fiber reinforced resin layer is integrated with the outer surface of the box body by bonding the fiber reinforced resin layer to the outer surface. . 5. The reinforced wooden box according to claim 4, wherein the bonding is performed by partial bonding to an outer surface of the box body. 6. The reinforced wooden box according to claim 1, wherein an integrated fiber reinforced resin layer is further provided on at least a part of the outer surface of the lid. 7. The reinforcing wooden box according to claim 1, wherein the reinforcing fibers of the fiber-reinforced resin layer are carbon fibers. 8. The reinforced wooden box according to claim 1, wherein the wooden box is for storing a scroll.