JP2007084072A - Foamed synthetic resin-made container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foamed synthetic resin-made container capable of eliminating deposits such as sand and garbage on the stored stuff such as fish and seafood by water washing as much as possible, and storing, preserving and conveying the stored stuff as clean as possible. <P>SOLUTION: In the foamed synthetic resin-made container 1, a bottom wall of a container body is a double bottom wall consisting of an upper stage bottom wall 4 and a lower stage bottom wall 5. A plurality of through-grooves or through-holes are formed in the upper stage bottom wall, and the lower stage bottom wall is attachable/detachable. In particular, the lower stage bottom wall is preferably attachable/detachable by fitting a fitting relief structure 8 provided on the lower stage bottom wall to a fitting relief structure 12 provided on a lower end of a side wall of the container body, and above all, water leakage is prevented. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a foamed synthetic resin container having a double bottom structure.

  In recent years, foamed synthetic resin containers are lightweight, sanitary, and excellent in heat insulation, so they can store and transport marine products such as seafood, fruits, vegetables, etc. that require freezing or refrigeration. As widely used.

In a heat insulating container for handling commodities that need to be subjected to strict constant temperature control, a multiple heat insulating container having a double structure composed of an outer container element and an inner container element, or a multiple heat insulating container having two or more layers (see Patent Document 1) Is disclosed. In addition, a technique that uses a partition plate having water passage holes in the lower part of the object to be cooled and the ice in order to store the object to be cooled such as fish together with ice and keep it cool for as long as possible is disclosed (see Patent Document 2). Has been. Furthermore, when transporting live fish and the like alive, a technology that uses a perforated inner lid on the top of a container containing water or seawater and fish for the purpose of preventing ice burning due to contact between ice and fish ( Patent Document 3) is shown.
Japanese Patent Laid-Open No. 2003-300565 JP-A-9-47189 JP-A-8-51888

  When fish and shellfish such as clams and clams are put into a container, they must be accommodated in a state where some deposits such as sand and garbage coexist with the fish and shellfish. In particular, the amount of deposits on the contents when picked up by tide-hunting for families is inevitably large. Further, the seafood discharges the sand contained therein and the excrement with time.

  In the present invention, the deposits such as sand and garbage adhering to the contents such as seafood are washed and separated as much as possible, and the contents are accommodated in as clean a state as possible so that they can be taken out without being contaminated. The present invention intends to provide a foamed synthetic resin container that has been devised and has excellent heat insulating properties and cold insulation properties.

  That is, according to the present invention, the box bottom wall is a double bottom wall composed of an upper bottom wall and a lower bottom wall. The upper bottom wall is provided with a plurality of through grooves or through holes, and the lower bottom wall is attached and detached. It relates to the production of foamed synthetic resin.

As a preferred embodiment,
(1) The upper surface of the upper bottom wall is inclined downward toward the center,
(2) A fitting concavo-convex structure was provided on the upper side edge of the lower bottom wall, and a fitting concavo-convex structure was provided at the lower end of the side wall of the box.
(3) An uneven structure was provided at the upper end of the side wall of the box, and an uneven structure was provided on the lower surface of the lid.
(4) The fitting by the fitting concavo-convex structure provided at the upper side edge of the lower bottom wall and the fitting uneven structure provided at the lower end of the side wall of the box is a tight fitting.
(5) A hand strap is hung on the outer periphery of the box.
The present invention relates to the above-mentioned foamed synthetic resin container.

  Accommodates such as seafood that must be accommodated in the presence of deposits, etc., are accommodated on the upper bottom wall of the double bottom wall structure, and a plurality of through grooves provided in the upper bottom wall, or through Since the deposits, excrement, and the like can be separated from the hole to the bottom wall of the lower stage, the contents can be taken out as cleanly as possible. Furthermore, since the bottom wall of the lower tier is detachable, with the bottom tier wall detached, the fishery products and other items are stored, and the attached material is washed away with water, etc., and then the lower tier bottom wall is attached. After closing, it can be transported and stored. This double-bottomed wall container is made of foamed synthetic resin, so it has excellent heat insulation and cold insulation properties, and if it is present together with a cold insulation agent such as ice or a cold storage agent, it can be kept fresh for a long time. Is possible. In addition, if the fitting between the lower bottom wall and the box is a fitting concavo-convex structure that can be tightly fitted, water leakage can be prevented even when water (seawater) or ice is used. It can be used in the same way as an airtight container. In addition, if a hand strap is hung on the outer periphery of the box, it is convenient to bring back the seafood collected, for example, during the tide hunt.

  The foamed synthetic resin container of the present invention is formed of a synthetic resin foam. As the synthetic resin for forming the foamed synthetic resin packaging container, foamed polystyrene, foamed polyethylene, foamed polypropylene, rigid foamed urethane resin, and the like can be used. Among them, foamed polystyrene is preferable.

  Hereinafter, the present invention will be described in detail with reference to the drawings. A perspective view of a foamed synthetic resin container 1 according to an embodiment of the present invention is shown in FIG. 1, and a longitudinal sectional view thereof is shown in FIG. The foamed synthetic resin container 1 includes a box 2 formed in a box shape by a side wall 3 and a bottom wall, and a lid 6 (not shown) formed in a shape that fits into the box 2. The bottom wall of the box is composed of an upper bottom wall 4 and a lower bottom wall 5, and normally the bottom wall has a double bottom wall structure.

  A fitting uneven structure 8 is provided on the upper side edge 7 of the lower bottom wall 5, while a fitting uneven structure 12 is provided on the lower end 10 of the side wall 3 of the box 2. The lower bottom wall 5 is detachable by fitting with the fitting uneven structure 8 provided on the lower bottom wall 5 and the fitting uneven structure 12 provided on the lower end 10 of the side wall of the box. The fitting shape is not particularly limited, and a known shape can be used. 1 and 2 show an example in which a concave and convex fitting structure is provided on the upper side edge 7 of the lower bottom wall 5 and concave on the lower end 10 of the side wall, but concave or convex on either side. One of the convex and concave fitting structures can be attached. Further, these fitting uneven structures may be continuous or discontinuous. However, in order to prevent water leakage, close fitting is preferable, and a continuous fitting uneven structure is preferable. As the close fitting, for example, a structure such as a main locking portion and an auxiliary locking portion as shown in JP-A-8-72944 is preferable. That is, one side surface corresponding to the fitting convexity and the fitting concave shape is formed in a substantially S shape with the upper portion protruding outward to form a main locking portion, and the other side surface is formed in a substantially vertical surface. As an auxiliary locking portion, a locking convex portion is formed on one of the vertical side surface of the fitting convex and the vertical side surface of the fitting concave, and a locking concave portion that engages with the locking convex portion is formed on the other side. Alternatively, at the time of molding, the other is preferably flat, and the top of the locking projection of the auxiliary locking portion is formed at a position lower than the top of the projection of the main locking portion.

  FIGS. 3A and 3B show an example of tight fitting with a partially enlarged cross section as a conceptual diagram. FIG. 3A is an example of reprinting what is shown in Japanese Patent Laid-Open No. 8-72944, and the lower bottom wall 5 is fitted to the lower end 10 of the side wall, whereas the S-shaped is formed on one side. This is an example in which a main locking portion 30 is provided and an auxiliary locking portion 31 is provided on the other side surface which is a substantially vertical side surface. FIG. 3B is an example different from that shown in FIG. 3A in which the main locking portions 30 are provided on both side surfaces. These tight fittings are strong fittings, so that the mold design can be made with high precision, and if the molding is performed carefully, water leakage can be effectively prevented. In particular, in the close fitting shown in FIG. 3A, although the fitting is strong, the fitting is easy, and excellent workability can be obtained even when the fitting is released.

  Further, the lid 6 can be opened and closed by fitting with the concavo-convex structure 14 provided on the side wall upper end 13 of the box and the uneven structure 15 provided on the lower surface of the lid 6 (not shown). Yes. About this concavo-convex structure, various shapes can be applied like the fitting concavo-convex structure. In addition, it is preferable that the uneven structure is a close fitting that can waterproof water leakage. In order to achieve this close fitting, for example, as described above, a structure having a main locking portion and an auxiliary locking portion as shown in JP-A-8-72944 is recommended. The upper bottom wall 4 is provided with a plurality of through holes 16. The size of the through-hole 16 is not particularly limited as long as the contained item does not fall, and may be appropriately designed depending on the size of the contained item. Further, the shape of the through hole 16 is preferably a circular shape, but is not particularly limited, and an ellipse, a polygonal shape, or the like can be adopted.

  4 to 6 show a foamed synthetic resin container 1 according to another embodiment of the present invention. FIG. 4 is a longitudinal front sectional view, FIG. 5 is a plan view thereof, and FIG. It is a longitudinal side sectional view. In these drawings, the lid body 6 is shown, and further, a fitting concavo-convex structure that is convex upward on the side peripheral upper edge 7 of the lower bottom wall 5 and concave downward on the side wall lower end 10 is shown. The fitting uneven structure of No. 2 is an example in which the uneven structure is reversed. In addition, an example is shown in which the upper surface of the upper bottom wall 4 is inclined downward toward the center. It is preferable to provide such an inclination because water drainage is improved and usability is improved. The upper bottom wall 4 is provided with a plurality of through grooves 17. The width, length, pitch, and the like of the through groove 17 are not particularly limited as long as the contents do not fall, and may be appropriately designed depending on the size of the contents.

  And two pairs of through-holes 20 for passing a hand strap are provided on the outer periphery of the opposing long side wall 3 of the box 2. It is very preferable because it is convenient to carry the hand strap by passing two hand straps through the through hole 20 and hanging the hand strap on the outer periphery of the box. However, the method of providing the through-hole 20 through which the hand strap is passed is not limited to the illustrated method, and any method of the conventional method may be used, as long as it can be transported by the hand strap. Is not to be done. In the present invention, if the structure is such that the hand strap passes through the lower bottom wall, the lower floor wall is supported, which is the most preferred embodiment.

  In order to mold the foamed synthetic resin container of the present invention, it may be molded by ordinary in-mold molding, and the molding method is not limited at all. If it is described in more detail for reference, the upper bottom wall may be formed in a shape integrally formed with the box. And a lower stage bottom wall and a cover body are shape | molded separately. As another forming method, the upper bottom wall is not integrated with the box, but is separated, and the box, the upper bottom wall, the lower bottom wall, and the lid are individually formed. It is also possible to insert the upper bottom wall into the body and then attach the lower bottom wall and the lid.

It is a perspective view which shows the one aspect | mode of the foam synthetic resin container of this invention. It is a longitudinal cross-sectional view of FIG. (A), (b) shows the cross section which expanded a part as an example of an example of close fitting as a conceptual diagram. It is a longitudinal front sectional view showing other modes of a container made of a synthetic foam resin of the present invention. It is a top view of the aspect shown in FIG. It is a longitudinal side sectional view of the mode shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Foamed synthetic resin container 2 Box 3 Side wall 4 Upper stage bottom wall 5 Lower stage bottom wall 6 Lid body 7 Upper peripheral edge 8 Fitting uneven structure 10 Side wall lower end 12 Fitting uneven structure 13 Side wall upper end 14 Uneven structure 15 Uneven structure 16 Through hole 17 Through groove 20 Through hole 30 Main locking portion 31 Auxiliary locking portion

Claims (6)

  A foam composite in which the box bottom wall is a double bottom wall composed of an upper stage bottom wall and a lower stage bottom wall, and the upper stage bottom wall is provided with a plurality of through grooves or through holes, and the lower stage bottom wall is removable. Resin container.   The foamed synthetic resin container according to claim 1, wherein the upper surface of the upper bottom wall is inclined downward toward the center.   The foamed synthetic resin container according to claim 1 or 2, wherein a fitting concavo-convex structure is provided on an upper side edge of the lower bottom wall, and a fitting concavo-convex structure is provided at a lower end of the side wall of the box.   The foamed synthetic resin container according to any one of claims 1 to 3, wherein a concavo-convex structure is provided on the upper end of the side wall of the box, and a concavo-convex structure is provided on the lower surface of the lid.   The fitting by the fitting concavo-convex structure provided on the side peripheral upper edge of the lower stage bottom wall and the fitting concavo-convex structure provided at the lower end of the side wall of the box is a tight fitting. A foamed synthetic resin container according to claim 1.   The foamed synthetic resin container according to any one of claims 1 to 5, wherein a hand strap is hung on the outer periphery of the box.

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