JP3195635U - Double container - Google Patents

Abstract

The present invention provides a double container that has a simple structure but does not cause a slippage of an insole member due to vibration during storage or transportation. An upper end of an insole side wall portion 22 erected from an insole bottom portion 21 is placed on a container body 20 made of synthetic resin having a flange 24 at an opening 23 at the upper end of the side wall portion 22 erected from the bottom portion 21. A double container 10 in which an insole member 30 made of a synthetic resin foam having an insole ridge portion 24 is disposed in an insole opening 23, wherein the ridge portion 24 of the container body 20 and the insole member 30 are provided. The said insole ridge part 34 is crimped | bonded. [Selection] Figure 2

Description

  The present invention relates to a double container in which a synthetic resin foam insole member is disposed on a synthetic resin container body.

  For example, relatively small fruits such as strawberries, grapes, and cherries are housed in a dish-shaped synthetic resin container and transported or sold in stores. This kind of fruit quickly hurts when it comes into contact with the bottom of a hard container for a long time or when an impact is applied by vibration or the like. Therefore, the above-described fruit is accommodated in a double container in which a synthetic resin foam insole member having substantially the same shape as the container main body is disposed in the container main body, and is protected from contact or impact.

  In the conventional double container, the container main body and the insole member are individually formed, and the container main body and the insole member are overlapped after forming to form the container. However, in the conventional double container, the container body and the insole member are substantially the same shape, and it is possible to easily improve the protection performance of the container simply by superimposing the two, but the insole member is simply on the container body. Since it is placed on the wall, it may shift due to vibration during storage or transportation, etc., and the fruit that is the content will fall off the insole member and cannot be sufficiently protected from impact etc. There is a fear.

  The present invention has been made in view of the above points, and provides a double container that has a simple configuration but does not cause the insole member to be displaced due to vibration during storage or transportation.

  In other words, the invention of claim 1 is based on a synthetic resin container body having a collar at an opening at the upper end of the side wall standing upright from the bottom, and an insole at the upper end of the insole side wall standing up from the insole bottom. A double container in which an insole member made of a synthetic resin foam having an insole ridge portion is arranged in an opening, wherein the heel portion of the container body and the insole ridge portion of the insole member are pressure-bonded. It relates to a double container.

  The invention of claim 2 is the invention according to claim 1, wherein a hollow portion is interposed between the bottom portion and the side wall portion of the container main body and the insole bottom portion and the insole side wall portion of the insole member. Related to double containers.

  The invention of claim 3 is characterized in that the container body and the insole member are pressed against the lower part and the upper part by pressing the lower part and the upper part, and the lower part and the upper part. 3. The double container according to claim 2, wherein a hollow portion is formed between the bottom portion and the side wall portion and the insole bottom portion and the insole side wall portion by vacuum forming. .

  The double container according to the invention of claim 1 is a synthetic resin container body having a flange at the opening at the upper end of the side wall that is erected from the bottom, and the upper end of the insole side wall that is erected from the insole bottom. A double container in which an insole member made of a synthetic resin foam having an insole ridge portion is disposed in an insole opening portion, the heel portion of the container body and the insole ridge portion of the insole member; Because of the pressure bonding, it is possible to prevent the insole member from being displaced from the container body due to vibration during storage or transportation, etc., while having an extremely simple configuration.

  The invention of claim 2 is that, in claim 1, a hollow part is interposed between the bottom part and the side wall part of the container body and the insole bottom part and the insole side wall part of the insole member. Thus, it is possible to more effectively secure the buffer property and the heat retaining (cold) property.

  The invention of claim 3 is the invention according to claim 2, wherein the container body and the insole member are pressed against the lower part and the upper part by pressing the lower part and the upper part, and the lower part And the upper mold are integrally formed so that a hollow portion is formed between the bottom portion and the side wall portion and the insole bottom portion and the insole side wall portion, thereby simplifying the manufacturing process. As a result, the production efficiency is improved and the production can be performed at a low cost.

1 is a perspective view of a double container according to an embodiment of the present invention. It is sectional drawing of the double container of FIG. It is a perspective view of a container main body. It is a perspective view of an insole member. It is sectional drawing of a shaping | molding die. It is sectional drawing of the shaping | molding die showing the state during shaping | molding of a double container.

  The double container 10 according to one embodiment of the present invention shown in FIGS. 1 and 2 is used to contact contents such as strawberries, grapes, cherries, cherry tomatoes and other relatively small fruits and vegetables that are easily damaged. It is for containing impacts and the like, and has a container body 20 and an insole member 30. The shape of the double container 10 is appropriately configured according to the contents to be accommodated, such as a tray shape (dish shape) where the accommodating portion is shallow, a box shape or a cup shape where the accommodating portion is deep. In the illustrated example, it is a tray shape that can accommodate strawberries and the like.

  As shown in FIGS. 2 and 3, the container body 20 has a flange 24 at an opening 23 at the upper end of the side wall 22 standing from the bottom 21. In the container body 20, concave reinforcing ribs 25 are appropriately formed on the bottom portion 21 and the side wall portion 22 in order to improve the strength as necessary. As a material constituting the container body 20, an appropriate synthetic resin such as a thermoplastic resin material such as polyethylene, polypropylene, polystyrene, or polyethylene terephthalate, or a biodegradable resin thermoplastic resin material such as polylactic acid is used.

  As shown in FIGS. 1, 2, and 4, the insole member 30 includes an insole ridge portion 34 at an insole opening 33 at the upper end of the insole side wall portion 32 that is erected from the insole bottom portion 31. The insole member 30 is a member on which the contents to be accommodated are placed, is formed substantially in the same shape as the container main body 20, and is disposed so as to overlap the container main body 20. The material constituting the insole member 30 is made of polyethylene, in order to obtain excellent heat insulation (coldness), in addition to flexibility, protection, and buffering for suppressing damage to the surface of the placed contents. A material mainly composed of a known synthetic resin foam such as polypropylene, polystyrene, or polyurethane is preferably used.

  In this double container 10, as shown in FIG. 2, the collar part 24 of the container body 20 and the insole collar part 34 of the insole member 30 are pressure-bonded over the entire circumference, so that the container body 20 and the insole member 30 is integrated. As described above, the double container 10 has a very simple configuration in which the container body 20 and the insole member 30 are pressure-bonded only by the collar part 24 and the insole collar part 34, but vibration during storage and transportation, etc. The slippage of the insole member 30 from the container body 20 can be prevented.

  Moreover, in the double container 10, as shown in FIG. 2, the hollow part 40 is between the bottom part 21 and the side wall part 22 of the container main body 20, and the insole bottom part 31 and the insole side wall part 32 of the insole member 30. Intervened. The hollow portion 40 is an air layer formed between the container main body 20 and the insole member 30 and more effectively secures buffering properties and heat insulation (cold insulation) properties. Even if the insole member 30 is bent due to the weight of the contained contents and a part of the insole member 30 comes into contact with the container main body 20, the reinforcing rib 25 is formed with the concave reinforcing rib 25 so that the reinforcing rib 25 has air. A layer is formed, and buffer property and heat retention (coldness) can be ensured.

  Next, the manufacturing process of the double container 10 will be described with reference to FIGS. In manufacturing the double container 10, a forming apparatus 50 including a forming die including a lower die 51 that defines the shape of the container body 20 and an upper die 56 that defines the shape of the insole member 30 is used. The main body 20 and the insole member 30 are pressed against the collar 24 and the insole collar 34 by pressing the lower mold 51 and the upper mold 56, and the bottom 21 by vacuum molding of the lower mold 51 and the upper mold 56. And it shape | molds integrally so that the hollow part 40 may be formed between the side wall part 22, the insole bottom part 31, and the insole side wall part 32. FIG.

  5 and 6, reference numeral 20A is a synthetic resin sheet material for the container body 20, 30A is a synthetic resin foam sheet material for the insole member 30, 52 is a mold surface of the lower mold 51, 53 Is a lower mold side vacuum suction hole opened in the mold surface 52 of the lower mold 51, 54 is a lower mold side suction device such as a vacuum pump connected to the lower mold side vacuum suction hole 53, 57 is a mold surface of the upper mold 56, Reference numeral 58 denotes an upper mold side vacuum suction hole opened in the mold surface 57 of the upper mold 56, and 59 denotes an upper mold side suction device such as a vacuum pump connected to the upper mold side vacuum suction hole 58.

  First, as shown in FIG. 5, the synthetic resin sheet material 20 </ b> A is disposed on the lower mold 51 side, and the synthetic resin foamed sheet material 30 </ b> A is disposed on the upper mold 56 side. Subsequently, as shown in FIG. 6, the upper die 56 is advanced to the lower die 51 side, and the lower die side suction device 54 is operated through the lower die side vacuum suction hole 53, so that the synthetic resin sheet material 20 </ b> A is obtained. A sheet material made of a synthetic resin foamed body is provided by closely contacting the mold surface 52 of the lower mold 51 to give a predetermined shape of the container body 20 and operating the upper mold side suction device 59 through the upper mold side vacuum suction hole 58. 30A is brought into close contact with the mold surface 57 of the upper mold 56 to give the insole member 30 a predetermined shape. At this time, the sheet material 20A and the sheet material 30A are in close contact with the lower mold 51 and the upper mold 56, respectively, so that the bottom portion 21 and the side wall portion 22 of the molded container body 20 and the molded insole member are formed. A gap as a hollow portion 40 is formed between the insole bottom 31 and the insole side wall 32. In addition, since it is vacuum forming, it is possible to shape | mold fine shapes, such as the reinforcement rib 25, to the container main body 20 or the insole member 30. FIG.

  At the same time, the lower die 51 and the upper die 56 are pressed in a state where both are in close contact with each other at the portion corresponding to the collar portion 24 of the container body 20 and the portion corresponding to the insole collar portion 34 of the insole member 30. . Thereby, the collar part 24 of the container main body 20 and the insole collar part 34 of the insole member 30 are pressure-bonded, and the container main body 20 and the insole member 30 are integrally formed.

  Thus, in one molding process, the container body 20 and the insole member 30 are formed into a predetermined shape by vacuum forming, and the collar portion 24 of the container body 20 and the insole ridge portion of the insole member 30 are formed by press molding. Therefore, the manufacturing process is simplified, the manufacturing efficiency is improved, and it is possible to manufacture at a low cost.

  In addition, the double container of this invention is not limited only to the above-mentioned Example, A part of structure can be changed suitably and implemented in the range which does not deviate from the meaning of invention.

  As described above, in the double container of the present invention, the collar part of the container body and the insole collar part of the insole member are pressed and integrated, so that the insole member is removed from the container body during storage or transportation. It can be expected to protect the contents appropriately without any deviation.

DESCRIPTION OF SYMBOLS 10 Double container 20 Container main body 20A Synthetic resin sheet material 21 Bottom part 22 Side wall part 23 Opening part 24 Gutter part 25 Reinforcement rib 30 Insole member 30A Synthetic resin foam body sheet material 31 Insole bottom part 32 Insole side wall part 33 Insole opening 34 Insole ridge 40 Hollow part 50 Molding device 51 Lower mold 52 Mold surface 53 Lower mold side vacuum suction hole 54 Lower mold side suction device 56 Upper mold 57 Mold surface 58 Upper mold side vacuum suction hole 59 Above Mold side suction device

Claims (3)

  A synthetic resin container body having a flange at the opening at the upper end of the side wall standing from the bottom, and an insole flange at the insole opening at the upper end of the insole side wall standing from the insole bottom A double container provided with an insole member made of a synthetic resin foam, wherein the collar part of the container body and the insole collar part of the insole member are pressure-bonded. Heavy container.   The double container according to claim 1, wherein a hollow part is interposed between the bottom part and the side wall part of the container main body and the insole bottom part and the insole side wall part of the insole member.   The container body and the insole member are pressure-bonded to the collar portion and the insole collar portion by pressing the lower mold and the upper mold, and the bottom portion and the insole member by vacuum forming with the lower mold and the upper mold The double container according to claim 2, which is integrally formed so that a hollow portion is formed between the side wall portion, the insole bottom portion, and the insole side wall portion.

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