JP2005047581A - Paper-made deep dish - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper-made deep dish capable of reducing a material cost or a processing cost. <P>SOLUTION: A paper-made deep dish 27 is characterized in that a cardboard sheet having a corrugated plate 12 adhered to a flat plate 11 is applied as a raw material and the dish is formed into a deep dish by a press processing work in an orientation in which the corrugated plate 12 is faced against an outer surface and the flat plate 11 is faced against an item mounting surface. The fingers of a user of this dish do not feel hot or cold even if hot food or cold food is to be handled because the fingers merely contact with only the summit portions 16 of corrugations constituting the corrugated plate 12 and the utilizer can handle the deep dish 27. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a paper basin, particularly a paper basin suitable for disposable use.

  Ceramic dishes are the basic dishes on which food is placed, but plastic dishes have been put to practical use for disposable applications. However, plastic dishes generate harmful gases during incineration and do not hum when crushed and landfilled, causing environmental problems. Therefore, in recent years, paper plates that can be incinerated or landfilled have attracted attention as disposable dishes.

Several proposals have been made on disposable containers made of paper (see, for example, Patent Document 1).
Utility Model Registration No. 3065471

  FIG. 8 is a reproduction of FIG. 1 of Patent Document 1. The container (1) is a double-layered container in which the container body (3) is overlapped with the outer packaging material (5) while keeping the gap (4) at the assembly stage of the container. It is a container with a structure, and the material is paper.

  Because of the double structure, heat conduction from the container body (3) to the exterior material (5) is reduced, and even when hot food is put in the container body (3), the exterior material (5) can be held. Or when a cold food is put in the container body (3), the food does not warm for a while. Therefore, both hot and cold items can be placed and stored.

  However, due to the double structure, various problems arise. That is, the material cost increases because the container main body and the exterior material are manufactured. And a rib etc. must be provided in order to ensure a clearance gap between a container main body and an exterior material, and processing cost increases. And since the assembly which integrates a container main body and an exterior material is indispensable, processing cost further increases. Although it is an advantage that the material is paper and can be returned to nature, if the material cost and processing cost increase, the advantage may disappear.

  Then, this invention makes it a subject to provide the paper deep dish which can reduce material cost and processing cost.

  The invention according to claim 1 is made of corrugated cardboard made by bonding corrugated sheets to a flat plate, and formed into a deep dish shape by pressing in a direction in which the corrugated sheet side is an outer surface and the flat plate side is a food placing surface. It is characterized by.

  The invention according to claim 2 is characterized in that the wave of the corrugated plate is a meandering wave that is meandered regularly.

In the invention according to claim 1, since only one corrugated paper is pressed, assembly is not required, and the processing cost can be greatly reduced.
In addition, since the user's finger contacts only the top of the wave forming the corrugated plate, even when handling hot or cold food, the user does not feel much heat or cold, Can be handled.

In the invention according to claim 2, the waves are meandered. The appearance can be enhanced by meandering the waves.
In addition, if the wave is a straight wave (a wave whose top is a straight line), it easily breaks at the valley between the waves or at the top of the wave, so there remains a problem in strength, but in the invention according to claim 2 Since the meandering wave is employed, it is possible to suppress the folding at the valley and the top, and to further increase the rigidity of the deep dish.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view of a material employed in the present invention, and shows a corrugated cardboard 10 manufactured by bonding a corrugated sheet 12 to a flat plate 11 in a corrugated cardboard manufacturing process. The corrugated paper 10 can be easily obtained at low cost because it uses waste paper, newspaper, and other paper waste as a raw material and can be produced in large quantities at a corrugated board manufacturing plant.

  Although not shown, it is desirable to apply or apply a harmless and highly waterproof resin such as polyethylene or polypropylene to the surface 13 of the flat plate 11.

FIG. 2 is a view taken in the direction of the arrow 2 in FIG. 1, and the wave of the corrugated plate 12 is a meandering wave 14 that is regularly meandered. A number of such meandering waves 14 are arranged in parallel at equal intervals. .
If the wave is a straight wave, it is easy to break at the valley between the waves or at the top of the wave, so there remains a problem in terms of strength. However, in the present invention, the meandering wave 14 is used, so the valley 15 or the top 16 Can be prevented from breaking.

  FIG. 3 is a rear view of the corrugated cardboard after shearing. A corrugated cardboard 18 having an appropriate size is cut out from a large cardboard. This cutting can be carried out efficiently by using a shearing machine or a shearing press.

FIG. 4 is a plan view of a corrugated pole disk. A large number of streaks 19 are radially provided on the flat plate 11 side of the corrugated cardboard disk 18. These lines 19 prevent wrinkles from occurring during the pressing process.
The streak 19 can be generated by carving with a dedicated press or simultaneously carving with a shearing machine (shear press).

  FIG. 5 is an explanatory view of a pressing process according to the present invention, and is a press machine 20 comprising a die 22 having a concave portion 21, a punch 24 having a convex portion 23 corresponding to the concave portion 21, and a blank holder 25 as an edge restraint. Prepare. Although not shown, the die 22 and the punch 24 include a heater and can be kept at a high temperature. The heater may be an electric heater or a steam heater.

  First, the punch 24 and the blank holder 25 are waited upward. Then, the corrugated cardboard 18 is placed on the die 22 so that the corrugated sheet 12 is on the die 22 side. Next, the flank holder 25 is lowered, and the edge of the corrugated board 18 is pressed against the die 22 with the blank holder 25. This pressing is set so that the height H of the corrugated sheet 12 becomes (0.3 to 0.5) × H. If it is less than 0.3 × H, the edges are too crushed and the appearance of the molded product is lowered. On the other hand, if it exceeds 0.5 × H, the holding force is reduced, and the press work is hindered.

  In addition to the above conditions, the corrugated board 18 is heated to a temperature suitable for molding. When the corrugated board 18 reaches a predetermined temperature, the punch 24 is lowered, and the convex portion 23 is inserted into the concave portion 21 to execute a pressing process to obtain a molded product. This molded product becomes a paper deep dish.

  Note that the press machine 20 is merely an example, and the die 22 may be disposed above the punch 24 or may be a horizontal press machine that moves the punch 24 horizontally. You can choose freely.

FIG. 6 is a perspective view of a paper platter according to the present invention, and FIG. 7 is a sectional view taken along line 7-7 of FIG.
As shown in FIG. 7, the paper deep dish 27 is made of a corrugated cardboard made by laminating a corrugated sheet 12 to a flat plate 11, and is pressed by an orientation in which the corrugated sheet 12 side is an outer surface and the flat plate 11 side is a food placing surface. It is formed into a deep dish shape.

  Since the user's finger contacts only the wave top 16 constituting the corrugated plate 12, even when handling hot or cold food, the user does not feel much heat or cold, and the deep plate 27 Can be handled.

  Returning to FIG. 6, the paper dish 27 has the corrugated plate 12 facing the outer surface, and the wave pattern appears to be knitted. Plastic deep dishes and ceramic deep dishes are generally flat on both the inner and outer surfaces, so it is necessary to add a hand such as drawing a pattern on the outer surface. In this respect, since the paper deep dish 27 of the present invention has a wave pattern on the outer surface and gives an impression of a rattan folding screen, it can be commercialized as a press-molded product.

  In FIG. 7, the wave is slightly crushed on the lower surface 28 of the edge of the paper deep dish 27. However, the lower surface of the edge is in the most inconspicuous position in FIG. For this reason, the appearance of the paper deep dish 27 can be kept good despite a part of the wave being crushed.

  In addition, in claim 1, the wave pattern may be a meandering wave described in the embodiment, a straight line wave, a lattice pattern intersecting the straight line wave, a rhombus pattern, or a polygonal pattern. As long as the thickness of the plate can be increased and the temperature of the food is not easily transmitted to the user's finger, the type is not limited.

  In addition to the literal deep dish, the paper deep dish may be any of a medium dish, a shallow dish, a ball, and a pallet, and any type can be used as long as it is a container on which food is placed or stored.

  The paper deep dish of the present invention is suitable for a dish on which food is placed.

It is sectional drawing of the raw material employ | adopted by this invention. FIG. 2 is a view taken in the direction of arrow 2 in FIG. 1. It is a rear view of the corrugated cardboard after shearing according to the present invention. It is a top view of the corrugated pole disk which concerns on this invention. It is explanatory drawing of the press process which concerns on this invention. It is a perspective view of the paper deep dish which concerns on this invention. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 6. FIG. 2 is a reprint of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Corrugated paper, 11 ... Flat plate, 12 ... Corrugated board, 14 ... Serpentine wave, 27 ... Paper deep dish.

Claims (2)

  A paper deep dish made of corrugated cardboard made by bonding corrugated sheets to a flat plate, and formed into a deep dish shape by pressing with the corrugated plate side facing the outer surface and the flat plate side facing the food placement surface . 2. The paper deep dish according to claim 1, wherein the wave of the corrugated plate is a meandering wave that is meandered regularly.

Images