JPH04109028U - container - Google Patents

Abstract

(57) [Summary] (with amendments) [Structure] A bottom plate 20 made of a non-foamed sheet is attached to a peripheral frame 10 that has a frame-like structure in which an inner piece 12 and an outer piece 11 are overlapped with each other by an integral foamed sheet. This is a container made by fusion bonding. [Effect] The peripheral frame 10 and the bottom plate 20, which form a complete double wall as a whole, are strongly fused regardless of the combination of foamed sheets and non-foamed sheets, making them sturdy and easy to assemble. easy.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a container having a circumferential frame that is very strong and has a good appearance. Ru.

0002

[Conventional technology]

A thin strip of synthetic resin foam sheet is assembled into a structural frame, and a non-foam sheet is attached to this. A container was proposed in which the bottom plates were combined and firmly fused together from the bottom plate side by applying pressure and heat. Publication No. 64-1231). In the above conventional technology, a single narrow strip of foam sheet made of expanded polystyrene is used as a peripheral frame. There is room for further improvement for products that require high strength. Ta.

0003 There was also a proposal to construct the peripheral frame by folding two foam sheets together ( Utility Model Publication No. 64-13156), between the outer piece and the inner piece, only the thin layer of the epidermis Since it is bent through a joint, weakening at the joint is unavoidable and there is no risk of it breaking. There was a risk that

0004

[Problem that the idea aims to solve]

In the conventional technology described above, the peripheral frame is made of foamed sheets and the non-foamed sheets are used. While taking advantage of the joint strength of the container in combination with the bottom plate, it is also possible to The challenge was to improve the strength of the body. Therefore, the purpose of this invention is to provide a container that can solve these problems. It is said that

[0005]

[Means to solve the problem]

This container, which achieves the above objectives and solves the problems, is made of synthetic resin foam. The outer and inner pieces of the sheet are integrally formed, and are bent from the bending groove between the two pieces. Overlap, then bend from the corner bending groove and join both ends to form the circumferential frame. A bottom plate made of a non-foamed sheet of synthetic resin is combined with this peripheral frame, They are characterized by their contact points being fused together by pressure and heating from the bottom plate side. Ru.

[0006] Furthermore, the bottom plate has ribs protruding near the bottom of the inner side of the peripheral frame. It is a characteristic.

[0007]

[Effect]

In the container with the above structure, there is no thin skin part on the peripheral frame made of foam sheet. , just fold the integrated outer and inner pieces to make them double and join both ends. The side frame can be assembled, and the bottom plate made of non-foamed sheet can be strongly bonded to this. Therefore, in addition to increasing the strength of the peripheral frame itself, the connection with the bottom plate was also improved. Since the side frame is made of two pieces put together, we can provide a product with higher joint strength than a single side frame. and is robust in use.

[0008]

【Example】

Next, examples of this invention will be illustrated below with reference to the drawings. FIG. 1 is a perspective view, and FIG. 2 is a cross-sectional view. In the figure, 10 is a peripheral frame, and 20 is a bottom. It shows the board. The peripheral frame 10 is made of a foam sheet made of foamed polystyrene or other synthetic resin. The outer piece 11 and the inner piece 12 are integrally formed through bending grooves 16 and 16'. Using the material A shown in FIG. Bend and overlap the corners between the outer pieces 11 and 11 and between the inner pieces 12 and 12. - Sequentially bend from the bending grooves 14 and 15 to form a square frame shape, and both ends 13 and 1 3' are joined 30 by gluing or fusion to form the peripheral frame 10. In addition, both ends 1 For 3 and 13', if the peripheral frame is square, the corners are less noticeable as shown in the figure. Although preferred, other positions are possible.

[0009] Next, the bottom plate 20 is made of synthetic resin such as a high-impact polystyrene sheet. Molded with a foam sheet, the upper surface side, especially near the lower part of the inner piece 12 of the peripheral frame 10 In the figure, a plurality of ribs 21 are formed to protrude inward to prevent the inner piece 12 from opening inward. It is preferable to exercise the regulating function. Furthermore, regarding the joint 30 between the peripheral frame 10 and the bottom plate 20, from the bottom plate 20 side, For example, by pressurizing and heating with a heating tool, a knurled hole with an uneven shape as shown in Fig. 3 is formed. The outer piece 11 and the inner piece 12 are strongly bonded to the bottom plate 10 by penetration welding. It will be joined.

0010 F is a non-foamed polystyrene film laminated on at least one side of the peripheral frame 10. The inner piece 12 is vermilion and the outer piece 11 is a laminated film. It can be used as a food container by applying a black coating to create a color that looks like it has been processed. It is possible to bring out the luxury of. Furthermore, in practice, an embossed uneven pattern is formed on the outer piece 11 and the inner piece 12. It is possible to implement the

[0011] In practice, the overall external shape is not limited to a quadrilateral, but may be shaped into other rectangular shapes such as a triangle or hexagon. It can be implemented as follows.

0012

[Effect of the idea]

The above-mentioned container according to this invention has an integral circumferential frame that has an outer piece and an inner piece in all parts. Because it is completely double layered, it is extremely durable and easy to manufacture. . Moreover, the connection to the bottom plate is hygienic by heat fusion, and the double-walled peripheral frame and pressurized heating Because they are bonded together, they are strong regardless of the combination of foamed and non-foamed sheets. This means that it is possible to provide a container with a suitable bond. Therefore, as a container for food etc. It is sturdy in use and has a good appearance.

[Brief explanation of drawings]

FIG. 1 is a perspective view.

FIG. 2 is a sectional view.

FIG. 3 is a partial bottom view.

FIG. 4 is a plan view of the peripheral frame material before assembly.

[Explanation of symbols]

A Peripheral frame material 10 Peripheral side frame 11 Outer piece 12 Inner piece 13, 13' Both ends 14,15 Corner bending groove 16, 16' Bending groove between inner and outer pieces 20 Bottom plate 21 Rib 30 Joint between peripheral frame and bottom plate

Claims (2)

[Scope of utility model registration request] Claim 1: An outer piece and an inner piece integrally formed from a synthetic resin foam sheet are folded and overlapped from a bending groove between the two pieces, and are further bent from a corner bending groove. Both ends are joined together to form a peripheral frame, and a bottom plate made of a non-foamed sheet of synthetic resin is combined with this peripheral frame, and the contact points are fused by pressure heating from the bottom plate side. A container characterized by: 2. The container according to claim 1, wherein the bottom plate has ribs protruding from the bottom of the inner side of the peripheral frame.