JPH0356504Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a deep hollow double-walled plastic container that is excellent in rigidity and lightness.

[Prior art]

2. Description of the Related Art Hollow double-walled plastic containers having an inner wall and an outer wall integrally formed by blow molding have been known for the purpose of improving rigidity and lightness. In addition, it is difficult to blow mold a plastic hollow double-walled container with a deep depth from the opening toward the bottom. A deep hollow double-walled plastic container constructed by joining wall members is also known from Japanese Patent Laid-Open No. 54-44983.

[Problem that the invention attempts to solve]

In the case of a deep hollow double-walled plastic container as described in Japanese Patent Application Laid-open No. 54-44983, the opening has a joint surface where a plurality of hollow double-walled members constituting the container body are joined. However, there were problems in that the integrity of the lid member, etc. was poor, and the appearance was impaired. Further, even if a plurality of hollow double wall members are to be tightly joined together, a gap is likely to be formed at the joint surfaces near the opening, and a special joining means is required to eliminate this gap.

[Means for solving problems]

This invention solves the above problems,
It is a deep hollow double-walled plastic container with excellent rigidity and lightness, and no joint surface appears at the opening of the container body, and the opening is made by integrating the lid body and frame member that closes the opening. To provide a hollow double-walled plastic container which has good integrity of a lid member in a closed state and has an excellent appearance without forming a gap at the joint surface near the opening of the container body. purpose.

That is, the present invention has a container body having an opening on one side, and a lid body that closes the opening of the container body by joining a plurality of hollow double wall members each having a shape divided from the opening toward the bottom. In the plastic hollow double-walled container, a frame member is fitted and fixed to the opening side of the container body to surround the outer periphery of the container body and restrict the plurality of hollow double-walled members,
The present invention relates to a hollow double-walled plastic container characterized in that the frame member and the lid are connected by a hinge, and the lid is closed by fitting onto the upper surface of the frame member.

[Effect]

In the present invention, the container body is constructed by joining a plurality of hollow double wall members divided from the opening toward the bottom, and the outer peripheral edge of the hollow double wall member on the opening side is integrally formed. A frame member held from the outer periphery regulates the position of the opening side of the plurality of hollow double wall members, and the upper surface of the opening of the container body is constituted by the frame member, and a lid body is fitted to the upper surface of the frame member. Since it has a structure that closes the container, it has excellent compatibility with the lid member, etc.

〔Example〕

An embodiment of the present invention will be described below based on the drawings.

Reference numeral 1 denotes a hollow double-walled plastic container (hereinafter referred to as a container) according to the present invention, and the container 1 is composed of a container body 2 and a lid 3. 4 is the opening of the container 1, and 5 is the bottom of the container 1. The container body 2 is constructed by joining a pair of U-shaped side wall members 6 and 7 that are divided from the opening 4 toward the bottom 5, and the side wall members 6 are attached to the bottom 5 side of the side wall members 6 and 7. , 7 is fitted and fixed with a bottom member 9 that holds the outer peripheral edge 8 of the bottom side and regulates the position. Further, a frame member 11 is fitted and fixed on the opening 4 side of the side wall members 6, 7 to hold the outer peripheral edge 10 of the side wall members 6, 7 on the opening 4 side to regulate the position. Furthermore, the outer circumferential edge 8 on the bottom 5 side and the outer circumferential edge 10 on the opening 4 side form protrusions 12, 13 on the edges of the side wall members 6, 7, respectively, and are located on the outer surfaces of the protrusions 12, 13. . Also 14
is a hinge that connects the container body 2 and the lid 3.

The side wall members 6, 7, bottom member 9, frame member 11, and lid body 3 that constitute the container body 2 are hollow double-walled by blow molding thermoplastics such as polyethylene, polypropylene, ABS resin, and polyphenylene oxide. The frame member 11, the lid 3, and the compressed thin hinge 14 that connects them together are integrally formed by blow molding.

In the above embodiment, the container main body 2 is composed of a pair of U-shaped side wall members 6 and 7. Any hollow double-walled member may be used as long as it is a plurality of hollow double-walled members divided in five directions from the bottom.
Further, the joints between the side wall members 6 and 7, the joints between the side wall members 6 and 7 and the bottom member 9, and the joints between the side wall members 6 and 7 and the frame member 11 may be joined with adhesive,
They may be joined by welding or by bolts or nuts. Furthermore, the heat insulation properties can be improved by filling a heat insulating material such as a foamed urethane resin into the hollow portion of the hollow double-wall structural member that constitutes the container.

[Effect of idea]

Since the present invention is configured as described above, it has the following effects.

That is, according to the present invention, a frame member that surrounds the outer periphery of the container body and restricts a plurality of hollow double wall members is fitted and fixed to the opening side of the container body, and the frame member and the lid body are fitted together. are connected by a hinge, and the lid body is fitted onto the top surface of the frame member to close it, so no joint surface appears at the opening of the container body.
The lid body that closes the opening and the frame member are integrated to improve the integrity of the lid member when the opening is closed, and it is also made of plastic so that there is no gap at the joint surface near the opening of the container body. Hollow double-walled containers can be obtained.

Further, according to the present invention, various effects such as those described below can be expected.

(1) The container body is made of a hollow double-walled plastic member, so it has excellent rigidity and lightness, and the hollow part provides excellent cushioning and heat insulation properties.

(2) The container body is made of plastic with a uniform wall thickness and a deep depth from the opening to the bottom because it is constructed by joining multiple hollow double-walled members that are divided from the opening to the bottom. A hollow double-walled container can be easily manufactured and obtained without being subject to restrictions on blow molding.

(3) Since the frame member that holds the outer periphery of the container body and restricts the plurality of hollow double wall members is fitted and fixed to the opening side of the container body, the upper surface of the opening of the container body is attached to the frame member. The container is constructed with a lid member attached to the top surface of the frame member to close the container, so the plastic material has excellent consistency with the lid body and has an excellent appearance without creating any gaps at the joint surface near the opening. A hollow double-walled container can be obtained.

(4) Since the opening sides of multiple hollow double-walled members are regulated by the frame member and fitted and fixed, joining methods using adhesives, bolts, and nuts are also easier than with conventional hollow double-walled containers. It can be abbreviated.

(5) The container body is made up of multiple hollow double wall members joined together, and the joined edge walls of the hollow double wall members serve as reinforcing ribs, making the container more rigid than conventional hollow double wall containers. can be improved.

(6) The plastic hollow double-walled container according to the present invention is rigid, lightweight, has excellent cushioning and heat insulation properties, and has a deep storage section, so it can be used as a thermal/cold container, a housing container for electrical appliances, or Can be used in a wide range of applications as car-mounted containers such as globo boxes and console boxes.

[Brief explanation of the drawing]

1 to 3 show a hollow double-walled plastic container according to the present invention, in which FIG. 1 is a perspective view, FIG. 2 is a longitudinal sectional view, and FIG. 3 is an exploded perspective view. 1... Plastic hollow double-walled container, 2...
Container body, 3... Lid, 4... Opening, 5... Bottom, 6, 7... Side wall member, 9... Bottom member, 11...
...Frame member.

Claims (1)

[Claims for Utility Model Registration] A container body having an opening on one side is constructed by joining a plurality of hollow double wall members divided from the opening toward the bottom, and the opening of the container body is closed. In a plastic hollow double-walled container provided with a lid, a frame member that surrounds the outer periphery of the container body and restricts a plurality of hollow double-walled members is fitted and fixed to the opening side of the container body. A hollow double-walled plastic container, characterized in that the frame member and the lid are connected by a hinge, and the lid is fitted onto the upper surface of the frame member to close the container.