JPH0417663B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

This invention relates to improvements in coffins, and more particularly to coffins made from paper board materials.

[Conventional technology]

There is a strong desire to shorten the incineration time at corpse crematoriums. The reason for this is that it is extremely difficult to build more crematoriums due to opposition from those around them. If incineration time can be shortened, processing capacity can be increased without increasing the number of incinerators. Another issue is that there is a need to reduce the amount of wood used in coffins that is incinerated. A huge amount of wood is used to make coffins and is incinerated every year. If a coffin using paper board material could be put into practical use,
These problems can be solved all at once. For example, coffins made of paper board materials are disclosed in Japanese Utility Model Publication No. 61-28602,
This is disclosed in JP-A-61-28603, JP-A-54-110071, JP-A-62-116674, and JP-A-63-88322.

[Problem to be solved by the invention]

The coffin shown in Japanese Utility Model Application Publication No. 63-88322 uses a board material reinforced by laminating a plurality of corrugated paperboards. Compared to wood, this coffin takes less time to incinerate, makes more efficient use of forest resources, and is lighter in weight. However, coffins with this structure have not yet been put into practical use. What prevents the practical use of coffins with this structure is that if they are made light, they cannot be made sufficiently strong. If thick paper is used to provide sufficient strength, the coffin will be heavy, and the cost of raw materials will be higher than that of a wooden coffin. Japanese Utility Model Publication No. 40-25576 describes a coffin made of paper that has sufficient strength. This coffin is
As a core material for plates such as lid plates, bottom plates, side plates, end plates, etc.
It uses a honeycomb paper core. Paper top sheets are glued to both sides of the paper core, and wooden squares are fixed as a frame around the periphery of the board. A coffin with this structure is used by connecting a frame body fixed to the periphery of the board material with nails to form a box shape. A coffin with this structure is lighter than a wooden one, yet has sufficient strength as a coffin. However, coffins with this structure were not put into practical use. This is because it is extremely time-consuming to manufacture, and the drawbacks of incinerating corpses have not been resolved. A coffin with this structure uses a paper core as the core material, and the top sheet adhered to the surface is also made of paper, and the parts of the board excluding the frame are made of paper. However, the plates of this construction need to be manufactured in a more labor-intensive manner than conventional flush construction coffins. Conventional coffins with a flat structure are manufactured by providing a crosspiece in the middle of a rectangular frame and fixing Bayer boards to the frame and the crosspiece. On the other hand, for board materials that use paper core as the core material, the inside of the rectangular frame is cut to the same outer shape as the inner shape of the frame, and the thickness is precisely adjusted to the frame. It is necessary to place the combined paper cores and use a hot press to adhere paper top sheets to both sides of the paper core and frame. In this manufacturing process, the thickness of the paper core and the frame must be precisely matched. This is because sufficient strength cannot be achieved unless both the paper core and frame are bonded to the paper topsheet. The coffin manufactured by this process is
It uses a paper core instead of the conventional crosspiece, and a paper surface sheet instead of plywood.In other words, it is an improved version of the conventional flat structure, and is time-consuming and costly to manufacture. It also has the disadvantage of being expensive. By the way, a coffin is not ideal simply because it can store a dead body. When incinerating a corpse, it is important to ensure that the coffin is completely reduced to ashes and that the bones are left in a state where they can be easily removed.
In order to achieve this, the actual incineration time is adjusted very carefully. In particular, this adjustment is extremely difficult for people who died from bone diseases or young children, etc., as their bones are weak, and no matter how precisely the incineration conditions are controlled, it is impossible to completely incinerate the coffin and leave the bones behind. It can be difficult to In particular, coffins with wooden frames have the disadvantage that if they are completely incinerated to ash, most of the weak bones will turn to ash, making it impossible to leave them in ideal conditions. The periphery connecting the plates forms a large block by connecting the frames, and it takes time to burn. Furthermore, the impact when the frame burns away scatters weak bones, making it difficult to collect them. The present invention was developed with the aim of solving these drawbacks of conventional coffins, and the important objectives of this invention are to shorten the incineration time, to be light and strong, to be able to be mass-produced at low cost, and to The aim is to provide a paper coffin that can recover weak bones in ideal conditions.

[Means to solve the problem]

The paper coffin of the present invention has the following configuration in order to achieve the above-mentioned object. The coffin is made of paper board material 3. The paper board material 3 is composed of a core material 1 and a top sheet 2. The core material 1 has a shape in which a large number of paper cylinders 1A are arranged in a plane. A paper board 3 is constructed by bonding a top sheet 2 to both ends of a paper tube 1A. The end face of the paper board 3 is bonded to the paper top sheet 2 of another paper board 3 and connected in a box shape.

[Effect]

The paper coffin of this invention uses a paper board 3 with a unique structure. FIG. 1 shows a paper board 3 used for a coffin according to an embodiment of the present invention.
As shown in the figure, the coffin of this invention uses a core material 1 in which numerous paper tubes 1A are lined up, and both ends of the paper tubes 1 are adhered to the inner surface of a topsheet 2.
The paper board material 3 having this structure can be made light because it is hollow inside, and since the many paper tubes 1A act as reinforcing ribs that increase the bending strength of the top sheet 2, the bending strength is significantly increased. It can be made strong. More conveniently, the paper board 3 of this structure
This paper tube 1A has the advantage of being able to increase its bending strength by making the paper tube 1A longer, or in other words, by increasing the distance between the top sheets 2 and making it thicker. The long paper cylinder 1A has a wide reinforcing rib to increase its bending strength.
Therefore, unlike the conventional paper board material 3, there is no need to increase the strength by laminating a large number of sheets, and it has the advantage that it has a simple structure, can be mass-produced at low cost, and can make a strong coffin. By the way, in the coffin prototyped by the present inventor, the length of the paper tube is 10 mm or more, and the overall thickness of the paper board 3 is
At 15mm, we achieved sufficient strength for a coffin.

【Example】

Hereinafter, one embodiment of the present invention will be described based on the drawings. However, the embodiments shown below are illustrative of coffins for embodying the technical idea of the present invention, and the coffins of the present invention have different materials, shapes, and
The structure and arrangement are not limited to those shown below.
Various modifications may be made to the coffin of this invention within the scope of the claims. Furthermore, in order to make the claims easier to understand, the numbers corresponding to the members shown in the embodiments are indicated in the "Claims column" and "Means for Solving the Conventional Problems". Additional notes are added to the members shown in the "Column" and "Column of Action". However, the members shown in the claims are by no means limited to the members of the embodiments. The coffin shown in FIG. 2 has a side plate 4, an end plate 5, and a bottom plate 6 made of paper boards 3, which are connected and assembled into a box shape with an open top.
A structure for connecting the side plate 4, end plate 5, and bottom plate 6 is shown in FIG. The coffin shown in this figure is provided with Norishiro 7 on the side plate 4 and end plate 5.
It is connected to the bottom plate 6 via. The side plate 4 is provided with a sear 7 on both sides and the lower edge, and the end plate 5 is provided with a sear 7 on the lower edge. The norishiro 7 is provided by extending the top sheet 2 of the paper board 3, or by pasting an adhesive sheet on the top sheet 2. The glue 7 is adhered to the end face and surface of the paper board 3, as shown in FIG. Therefore, the tip of Norishiro 7 is 90
It is bent and glued. As shown in FIG. 4, the structure in which the tip of the norishiro 7 is bent at right angles and adhered to the surface has the advantage that the paper boards 3 can be firmly connected. However, the connection state of the bottom plate 6, side plate 4, and end plate 5 of this invention is not limited to the structure shown in FIGS. 3 and 4. Although not shown, it is also possible to directly bond the end surfaces of the side plate 4, bottom plate 6, and end plate 5. The paper board material 3 that constitutes the bottom plate 6, side plate 4, and end plate 5 is shown in FIG. As shown in this figure, the paper board material 3 is made of a core material 1 and a top sheet 2 adhered to the surface thereof. The core material 1 is for increasing the bending strength of the paper board material 3, and is
It has the shape of A arranged in a plane. The paper cylinder 1A preferably has a hexagonal cylinder shape as shown in FIG. 1, and the shape arranged in a plane is a honeycomb shape. The honeycomb-shaped core material 1 is easy to manufacture, can be mass-produced at low cost, and has the advantage of being strong in bending strength. However, this invention does not limit the shape of the paper tube to a hexagonal tube. Although not shown, the paper tube may have the shape of a polygonal tube such as a triangular tube, a quadrangular tube, or an octagonal tube, or an edge tube, an elliptical tube, or the like. It is preferable that paper tubes arranged in a plane with both ends adhered to the inner surface of the top sheet are connected and fixed to adjacent paper tubes. To connect paper tubes and arrange them in a flat shape, you can cut a number of paper tubes to a certain length, line them up horizontally, and glue the points of contact with adjacent paper tubes, or as shown in Figure 1. As shown in the figure, when creating a honeycomb shape, it is also possible to cut a long thin piece of paper to a certain width, bend it so that the phases are different by 180 degrees, and then glue the contact surfaces together. Furthermore, although not shown, the paper cylinders can be arranged in a plane by adhering them to the inner surface of the top sheet without adhering the contact points with the laterally adjacent paper cylinders. However, this structure of paper board material has the disadvantage that its strength is lower than that of a structure in which adjacent paper tubes are connected. The size of the paper tube 1A constituting the core material 1 is as follows:
The length of A, in other words, the thickness of the paper board 3,
It is designed to the optimum value in consideration of the required strength. Normally, the inner diameter or diagonal length of the paper tube 1A is adjusted to a range of 5 to 50 mm, preferably 10 to 30 mm. The ends of the paper cylinders 1A arranged in a plane are adhered to the topsheet 2. Therefore, the length of the paper cylinder 1A determines the interval between the topsheets 2 and the thickness of the paper board 3. The length of the paper tube is usually 10 to 100 mm.
Preferably, it is adjusted to a range of 10 to 50 mm. Paper tube 1A
By increasing the length, the bending strength of the paper board 3 can be increased. The bending strength of the paper board material 3 changes depending on the length of the paper tube 1A, the type of the paper tube 1A, and the type of the top sheet 2. Cardboard, single-sided corrugated paper, double-sided corrugated paper, etc. can be used for the paper cylinder 1A. For the top sheet 2, double-sided corrugated paper is most suitable. The top sheet 2 made of corrugated paper is light and combustible, and has sufficient strength. just,
For the topsheet 2, other paperboards having sufficient strength can be used instead of corrugated paperboard. A coffin manufactured by connecting paper boards 3 into a box shape is
Furthermore, if necessary, apply a surface finishing sheet to finish the surface neatly. The surface finishing sheet includes cloth,
Paper, synthetic resin sheets, metal foil, leather, etc. can be used. In addition, a pattern is printed on the surface finishing sheet,
Alternatively, colored ones can also be used. Furthermore, the inner surface of the coffin can be waterproofed by applying waterproof paint or by pasting a waterproof sheet without any gaps. Even if water condenses and forms inside a waterproof coffin, it will not wet the paper board or leak water. The lid that closes the opening of the coffin can also be made from the same paper board material as the coffin.

【Effect of the invention】

The coffin of this invention is assembled into a box shape using paper board materials consisting of a core material and a top sheet. The paper board used has a unique core material. That is, the core material used is paper tubes arranged in a wall-like manner, with top sheets adhered to both ends. A coffin with this structure is incomparably stronger than a coffin made of conventional cardboard. Conventional coffins using corrugated paper have had difficulty building up sufficient strength for coffins even when a large number of corrugated papers are laminated. However, the coffin of the present invention can achieve sufficient strength as a coffin without laminating a large number of paper boards. Furthermore, the paper board material used for the coffin of the present invention is not made by increasing the density of paper to increase its strength. Increasing the density of paper to increase its strength has the disadvantage of making it heavier and taking longer to burn. The coffin of this invention has sufficient voids inside the paper board material, is light, has a short burning time, and can be mass-produced at low cost, which is the ideal feature for a coffin. Furthermore, a noteworthy feature of the coffin of this invention is that it is possible to incinerate the bones of people who died due to bone diseases or whose bones are as weak as that of a baby's baby, leaving them intact. This feature is characterized by a structure in which both ends of the paper tube, which is the core material, are glued to the topsheet, and in addition, the end faces of the boards are glued to the paper topsheet, instead of being connected via a frame like in conventional coffins. This is achieved through a unique structure that connects the parts in a box-like manner. A paper board material in which both ends of a paper tube are adhered to a paper surface sheet allows flame to pass through it more easily than a material made of multiple layers of corrugated paperboard. Therefore, it has the characteristic of being completely incinerated in a short period of time. This is because a gap is provided in the paper tube in the direction of transmission through the paper board. Furthermore, the paper board having this structure can achieve sufficient strength by bonding the end face to the paper top sheet of another paper board, thereby omitting the frame plate at the periphery of the board. Therefore, the coffin of the present invention leaves even weak bones in an ideal condition without turning them into ashes, and the coffin itself can be completely incinerated to ashes. Therefore, it is possible to completely recover all bones regardless of the condition of the corpse. Furthermore, since there is no frame that is heavy and takes time to burn, it does not burn down and scatter the bones of the corpse during incineration, and it also has the advantage of being able to be incinerated without shifting the position of the bones. By the way, the coffin that the inventor actually produced as a prototype was
Even though it was made entirely of recycled paper, it was strong enough to withstand a load of 150 kg in the center of the bottom. The prototype coffin and test conditions were as follows. External dimensions are 180 cm x 43 cm x 37.8 cm The paper surface sheet is made of 140 g/cm ² recycled paper The thickness of the paper tube is 0.15 mm Hexagonal honeycomb structure of the paper tube The length of each side of the honeycomb is 1 cm Paper surface The inner spacing of the sheets was 1.8 cm.The coffin was placed on two parallel bars placed 170 cm apart. At the center of the bottom plate of the coffin, the height is 60cm and the width is 30cm.
A board of cm was placed and a load was applied to this board. In this way, the prototype coffin was extremely strong, even though it was made entirely of recycled paper. In addition, paper boards with this structure can be produced by making large boards and cutting them into a predetermined size, so in addition to reducing raw material costs,
It has the advantage of being able to be mass-produced efficiently and at significantly lower costs overall.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a partially damaged paper plate surface sheet used in a coffin according to an embodiment of the present invention, Fig. 2 is a perspective view of the coffin, and Fig. 3 shows the assembled state of the coffin. The perspective view shown in FIG. 4 is a sectional view showing the connecting portion of the paper board material. 1...Core material, 2...Top sheet, 1A...Paper cylinder, 3...Paper board material, 4...Side plate, 5...End plate,
6... Bottom plate, 7... Norishiro.

Claims (1)

[Claims] 1. In a coffin in which paper boards are connected in a box shape, the paper board 3 is composed of a core material 1 and a top sheet 2, and the core material 1 has a shape in which many paper tubes 1A are arranged in a plane. A top sheet 2 is glued to both ends of this paper cylinder 1A to form a paper board 3, and the end surface of this paper board 3 is glued to the paper top sheet 2 of another paper board 3. A paper coffin characterized by being connected in a box shape.