JPH09173395A - Assemblable fiber board coffin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily assemble a coffin at the site of use by forming side plates by sticking the frame wood to bar wood of particle materials having specified thickness by sandwiching them between fiber boards having specified thickness, connecting and fixing the respective side plates and a floor plate through plastic juggles. SOLUTION: In an assemblable fiber board coffin 50, side plates 5a-5d are formed by sticking frame wood 1a-1d to bar wood 2a-2d of particle materials having thickness from 10mm to 20mm by sandwiching them between fiber boards 3a and 3b having thickness from 2mm to 3mm. Then, a window hole 6 and a door 8 fitted through a plastic hinge 7 to the window hole 6 are provided. Further, this coffin is provided with an upper plate 10 equipped with a matching bar 9, floor plate 15 having a structure filling the closed space formed between the fiber boards with the medium-gravity fiber honeycomb materials of honeycomb structure, plastic nails for fixing the upper plate 10, and plastic juggles for connecting and fixing the respective side plates 5a-5d surrounding four faces with the floor plate 15. Thus, the strength of floor plate can be improved while keeping it light in weight.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to fiberboard, especially medium density fiberboard.
ds: abbreviated as MDF)), and relates to a low-cost assembling type fiberboard casket which is easily assembled and is convenient for transportation and storage.

[0002]

2. Description of the Related Art There are various conventional caskets ranging from high-end products using paulownia boards to popular products using veneer boards with paulownia surface prints, but about 70% of the overall casket demand is simple. Popular products made of plywood are occupying.

The veneer board (plywood) used in the above-mentioned conventional casket is a board obtained by thinly peeling wood, that is, a single board (veneer) is made into a single board by adhering an odd number of sheets with an adhesive and making the fiber directions orthogonal to each other. It was done.

The conventional casket is already assembled in the shape of a rectangular parallelepiped box as a product, and is composed of a floor plate, side plates (two front and rear short side plates and two left and right long side plates), a top plate (French face). Windows and doors are provided at the position of) and generally has a width of 5
It occupies a volume of about 4 cm × height 40 cm × length 185 cm.

[0005] Further, when nailing the Buddha and finally covering the upper plate, iron nails or metal items are often used mainly for connecting and fixing the members used for assembly.

[0006]

However, the wood of the plywood used in the casket of the above-mentioned popular products is mainly made of lauan wood, but the market price of the tropical hardwood lauan wood is volatile and, as a result, the casket The cost is unstable and it is difficult to keep the price low.

Since a large amount of tropical forests in Asia have been cut down, the problem of natural environment destruction has been pointed out for a long time, and it can be said that stable supply in the future cannot be predicted.

Further, the conventional casket has a product already assembled in a box shape and occupies a large volume as described above.
It is like carrying bulky air when transporting, and a large space is also needed to store many caskets, so the efficiency of transportation and storage is poor, and transportation and storage costs are high. Was expensive.

However, in reality, the Nikko crash accident (1985
1) and the Great Hanshin-Awaji Earthquake (1995), unfortunately there is always an emergency situation in which a large number of fatalities occur at one time. In each municipality, disaster prevention measures and preparations as well as coffin preparation and prompt It is easily conceivable that various transportation and supply is necessary.

[0010] Actually, in the case of the above-mentioned Nippon Aircraft crash accident, a problem in transportation was revealed that the rapid supply of the casket was delayed.

Further, since the conventional casket uses iron nails and metal objects, there is a processing problem that these remain after cremation.

The present invention has been made in view of the above circumstances, and is an assembly type which is convenient for transportation and storage and can be easily assembled at a place of use, and a fiberboard is used instead of a conventional veneer board. The present invention provides a completely new prefabricated fiberboard casket that solves the problem of strength that occurs when it is adopted, especially using a medium quality fiberboard (MDF).

[0013]

Means for Solving the Problems (1) A side plate having a structure in which a frame wood of particle material having a thickness of 10 to 20 mm and a splint are sandwiched from both sides by a fiber board having a thickness of 2 to 3 mm and attached. In addition to the structure of the side plate, an upper plate provided with a window hole and a door attached to the window hole with a plastic hinge, and a space closed between the fiber plates sandwiching the particle material in addition to the structure of the side plate. It consists of a floorboard having a structure filled with a medium-quality honeycomb material of honeycomb structure, a plastic nail for fixing the upper board, and a plastic dowel for connecting and fixing each side board and the floor board surrounding the four sides, and the plastic dowel is fitted to the plastic dowel. The above-mentioned problems are solved by providing a coffin casket made of a fiberboard which is characterized in that a notch and a dowel hole to be buried are provided at predetermined positions of the side plate and the floor plate.

(2) Further, in the prefabricated fiberboard casket according to (1) above, there is provided a prefabricated fiberboard casket in which the fiber board is a medium quality fiberboard (MDF). The above problem is solved by.

(3) Further, the above (1) or (2)
In the assembling type fiberboard casket described above, an assembling type fiberboard casket characterized by applying a water-based synthetic resin adhesive to the inner surface of the notch fitted with the plastic dowel to cure the notch surface. The above-mentioned problems are solved by providing them.

The term "fiber board" and "fiber board" used herein are synonymous with each other, and are a generic term for a plate-like product obtained by crushing wood chips or other plants, adding chemicals and heating to fiberize, and compression-molding. is there.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a coffin made of fiberboard caskets according to the present invention will be described below with reference to the drawings.

First, although a fiber board is used in the present invention, the characteristic feature of this fiber board is that it is a homogeneous board material with little anisotropy because the fiber arrangement generally has no directionality. Yes, nailing, cutting and punching are easy, and the surface is smooth and suitable for painting and printing. Also, because wood chips are used as a raw material, it is low cost and resource saving,
It has the policy advantage of promoting recycling.

The classification of fiber board is JIS (JIS A 59
05 to 5907) are classified into three types according to their specific gravity: soft fiber board (insulation fiber board), medium fiber board (semi-hard fiber board: semi-hard board), and hard fiber board (hard board).

Of the above three types, the soft fiberboard is not sufficient for the casket in terms of strength, so in the present invention, the medium fiberboard and the hard fiberboard are symmetrical to each other.

Among these, medium quality fiberboard (JIS A 590
6) is a fiber board having a density of 0.4 g / cm ³ or more and less than 0.8 g / cm ³ , depending on bending strength, 50, 150, 200, 3
There is 00 (kgf / cm ² ).

Recently (medium density)
fiberboards: MDF for short, also called machinability as thick board, dimensional stability, surface property,
Improvements have been made to the strength characteristics.

The application is similar to a particle material (JISA 5908) obtained by spray-coating an adhesive on a piece of wood and hot-pressing it, and is used for a wall floor base, an inner wall, a ceiling, furniture and the like.

The general properties of MDF are that it does not have defects in appearance such as cracks, rot, and knots, that it is easy to process and has little directionality such as strength, but it has the disadvantage of poor water resistance. .

In the present invention, a standard strength of 150 or 20 is used.
Type 0 MDF would be optimal.

FIG. 1 is a perspective view showing a completed assembly-type fiberboard casket of the present invention, which is mainly composed of MDF having the above-mentioned properties, and FIG. 1 is a partial sectional view showing a vertical section of a floorboard and side plates of the casket. The figure is shown in FIG.

In FIGS. 1 and 2, the assembling type fiberboard casket 50 has a thickness t1 = 10 to 20 indicated by a broken line.
mm particle wood frames 1a-1d and piers 2a-2
d (width W is about 40 mm) from both sides with thickness t2 = 2 to 3
mm fiber boards 3a, 3b sandwiched and attached to the side plates 5a to 5d, a window hole 6 and a door 8 attached to the window hole with a plastic hinge 7 in addition to the structure of the side plate 5a, and further mating In addition to the structure of the upper plate 10 provided with the rod 9 and the side plate 5 as shown in FIG.
fiberboard 13a sandwiching a ... and a pier 12a ...),
A floor plate 15 having a structure in which a medium-fiber honeycomb material 14 having a honeycomb structure is filled in a space closed between 13b, a plastic nail (not shown) for fixing the upper plate 10, side plates 5a to 5d surrounding four sides, and a floor plate. One set is composed of a plastic dowel (described later) for connecting and fixing 15 together.

The above-mentioned members have the same dimensions as the conventional casket (width 54c).
m × height 40 cm × length 185 cm) is cut and processed to a predetermined size, and paulownia prints and paulownia tape, which are commonly used in furniture and coffins made of plywood, are attached to the front side.

Each of the above-mentioned members is a so-called knock-down type which is not assembled as a product, and is packed compactly in a packaging vinyl bag to a size of about 1940 × 635 × 120 (mm) and packed in a corrugated cardboard. To be done. The total weight of the MDF is about 24 kg per set, which is lighter than conventional popular products, and has an occupied volume of about 1/4, which dramatically improves the transportation and storage efficiency.

In the present invention, as described above, the so-called honeycomb structure in which the inside of the floor plate 15 is filled with the medium quality fiber (MDF) honeycomb material 14 having the shape shown in FIG. However, it is characterized in that it is dramatically improved compared to simply laminating fiberboard.

By using the honeycomb material 14 using the MDF as thin as the above-mentioned thick paper, the fiberboards 13a and 13b used for the floorboard 15 do not need to be relatively expensive hard fiberboards, and the MDF is sufficient. Strength is obtained, and light weight and low cost are realized.

However, since the fiberboard is weak in water resistance, dew condensation is likely to occur due to dry ice placed on the bottom of the coffin. Therefore, it is important to prevent the softening of the floorboard due to dew condensation by providing a double structure in which a waterproof sheet is laid on the bottom and inner side of the casket, and the bottom part of the waterproof sheet is laid with a heat insulating shielding mat such as foam polystyrene. Is.

Next, a special plastic dowel is used to assemble the above-mentioned assembly type fiberboard casket 50.

This plastic dowel 20 is made of phenol resin, epoxy resin, polyamide resin, PBT, PI,
It is made of plastic such as ABS, and has a shape as shown in FIGS. 3 and 4, and a cylinder of the dowel 21 (diameter 7 mm, length 15 m
The main surface 23 having a protruding portion (about m) has a substantially symmetrical trapezoidal shape, and the bottom side X2 is about 21 mm and the top side X1 is about 15 mm.
(Shown upside down in FIGS. 3 and 4), the height H is about 20 mm, and the left and right corners of the upper side are rounded. The depth Z is about 18 mm. Also, the width from one side is 2m
A notch 24 of about m is provided in an L shape so as to be crimped by elasticity of plastic. Also, dowel 21
Small guide projections 25 (diameter 3 mm) are provided in parallel in the vicinity.

The plastic dowel 20 having the above structure has a depth h = 12 mm provided at four places around the front and rear short side plates (5c, 5d) and eight places around the floor plate 15 and is substantially the same as the main surface 23 of the plastic dowel 20. It fits into the notch 30 cut into the trapezoid of the same shape and is embedded.

On the other hand, dowel holes 33 (7 mmφ) and guide holes 34 (3 mmφ) are provided in the dowel hole 33 (7 mmφ) and the guide hole 34 (3 mmφ) at 16 places in total, two places on each of the short sides before and after the floor plate 15 and six places on each long side plate (5a, 5b). It is provided at a predetermined position corresponding to the 20 embedding positions.

By the way, since a strong stress is applied to the plastic dowel 20 which connects and fixes the assembled members, the inner surfaces 30a, 30b, 30c of the notches 30 (dowel notches) closely fitted to the plastic dowels, Strong pressure is also applied to the four surfaces of 30d (particularly the edge portion).

On the other hand, MDF is lighter than a hard fiber board and easy to process, but is relatively soft, so that the notch surface is gradually deformed by pressure and loosens easily. The plastic dowels 20 embedded in the ridge and the burial are different and hard plastics, and the compatibility with the soft woody MDF cannot be said to be good.

In this respect, the water-based synthetic resin adhesive G is provided on the four surfaces of the inner surfaces 30a to 30d of the notch 30 into which the plastic dowels for assembling and assembling the assembled plates are fitted.
Is applied, so that the relatively soft MDF notch surface 30
a to 30d and the synthetic resin adhesive G have penetrated into the MDF, and the compatibility of the adhesiveness with the plastic dowel 20 is improved between the plastics, and the notch 30 is firm without being deformed even when pressure is applied. The shape is maintained, and the state where the plastic dowel 20 is closely fitted is maintained.

Therefore, the fitting of the plastic dowel 20 and the notch 30 can be prevented from becoming loose and coming off, and the strength of the casket is sufficient even if it is an assembly type.

Of course, the fiber board used in the present invention may be either a hard fiber board or an MDF. However, considering cost and weight, the MDF is favored.

However, when the MDF is adopted, the strength retention of the floor plate and the notch becomes a problem as described above. Therefore, devising a honeycomb material on the floor plate and applying a water-based synthetic resin adhesive to the inner surface of the notch to cure the material have a great effect.

Needless to say, the use of plastic dowels, plastic nails, and plastic hinges also has the advantage of not burning anything during cremation.

To outline the assembly, first, the packaging is unpacked, and the plastic dowels are embedded in the eight cutouts of the floor plate 15, and the plastic dowels are embedded in the four cutouts of the front and rear short side plates 5c and 5d.

Next, the dowel on the lower side of the short side plate is attached to the floor plate 15
Insert it into the dowel hole.

Next, the dowels of the floor plate and the short side plates are fitted into the dowel holes of the left and right long side plates 5a, 5b (the above is to utilize wood punches or the like as appropriate).

Dry ice is spread on the bottom of the casket if necessary. At this time, the double-layered waterproof sheet on the floor plate and the inner surface is a heat insulating and shielding mat such as styrene foam on the back side of the bottom as described above. To prevent the MDF floorboard from weakening due to dew condensation.

Also, in the part corresponding to the side surface of this waterproof sheet, 13 Buddhas are drawn and the Buddhas and Bodhisattvas who have paid for 13 times of memorial service Buddhist deities are shown to pray for the Buddha's soul and charcoal () in the pillow. The deodorant will be placed in the casket together with the (carbonizing agent) (prepared separately and included in this assembly set).

After the Buddha is placed, the upper plate 10 is placed and finally fixed with plastic nails to complete the process.

As explained above, since the coffin casket made of the fiberboard according to the present invention is a knockdown, it is easy to carry and store, and it is prepared and stored in the institution or hospital of the local government, so that it can be stored in a large number in case of an accident or disaster. In case of death, it will be possible to take prompt action.

Further, the invention is low cost and easy to assemble, and is a very useful invention that contributes to resource recycling.

[0052]

The assembly type fiberboard casket of the present invention has the following excellent effects.

(1) It is a knockdown that can be easily assembled, is light and easy to carry and store, and the cost of carrying and storing is low.

(2) Since fiberboards, especially medium quality fiberboards (MDF) are mainly used, the manufacturing cost is stably reduced, and it is suitable for resource saving and recycling.

(3) Since the assembly method is a plastic dowel, the notch processing for the dowel is automated.

(4) Since the honeycomb material of MDF is put in the floor plate, it is strong despite being thin and light.

(5) No incombustibles remain in the incinerator because no members are left after incineration.

(6) Since the inner surface of the notch into which the plastic dowel is tightly fitted is coated with a water-based synthetic resin adhesive to harden the surface, there is no looseness after assembly and sufficient strength is ensured. can get.

[Brief description of the drawings]

FIG. 1 is a perspective view of a completed assembly-type fiberboard casket using MDF as a main material according to the present invention.

FIG. 2 is a partial cross-sectional view showing a vertical cross-section of a floor plate and a side plate of an assembly type fiberboard casket according to the present invention.

FIG. 3 is a perspective view for explaining the relationship between the plastic dowel and the notches and dowel holes.

FIG. 4 is an enlarged perspective view showing the shapes of a plastic dowel and a notch.

[Explanation of symbols]

 1a-1d frame wood 2a-2d pier 3a, 3b fiberboard 5a-5d side plate 6 window hole 7 plastic hinge 8 door 9 happy bar 10 upper plate 11a floorboard frame 12a floorboard pier 13a, 13b fiberboard 14 medium quality Fiber honeycomb material 15 Floor plate 20 Plastic dowel 21 Dowel 25 Guide small protrusion 30 Notches 30a to 30d Notched inner surface 33 Dowel hole 34 Guide hole 50 Assembled fiberboard casket

Claims (3)

[Claims] 1. A side plate having a structure in which a frame and a splint of particle material having a thickness of 10 to 20 mm are sandwiched from both sides by a fiber board having a thickness of 2 to 3 mm and attached, and a window hole in addition to the structure of the side plate. In addition to the structure of the upper plate provided with a door attached to the window with a plastic hinge and the structure of the side plate, the space closed between the fiber plates sandwiching the particle material was filled with a medium fiber honeycomb material of honeycomb structure. A floor plate having a structure, a plastic nail for fixing the upper plate, and a plastic dowel for connecting and fixing each side plate surrounding the four sides and the floor plate, and the notches and dowel holes in which the plastic dowel is fitted and embedded are the side plates. And an assembling type fiberboard casket, which is provided at a predetermined position on the floorboard. 2. The prefabricated fiberboard casket according to claim 1, wherein the fiberboard is a medium quality fiberboard (MDF). 3. The assembly type fiberboard casket according to claim 1 or 2, wherein a water-based synthetic resin adhesive is applied to the inner surface of the notch fitted with the plastic dowel to cure the notch surface. Assembled fiberboard casket characterized by