JPS5836659Y2 - Container made of synthetic resin sheet - Google Patents

Description

[Detailed description of the invention] This invention is a lid engagement method for storage containers for foods, etc., in which a container and a lid are connected so that they can be folded in two using a synthetic resin thin plate such as hard vinyl chloride or biaxially oriented polystyrene. It is related to the structure, and its purpose is to easily and reliably connect and release the free ends of the container lids by utilizing the ease with which the container can be deformed and restored by external force.

Conventionally, these containers made of thin plates are made of thin materials due to the demand for low cost, and therefore complex connection and engagement devices cannot be created, and they tend to be easily deformed by external force and do not have sufficient effectiveness, so the lids have been fixed with staples, Sellotape, rubber bands, etc. is being done a lot.

However, staples and cellophane tape are inconvenient for opening the lid, and rubber bands are insufficient for securing the lid.

Therefore, the present invention uses a simple structure in which the outer edge of the flange provided on the container for reinforcement and decoration is bent to connect and engage the free ends of the container and the lid.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the entire container, in which the container 1 is integrally formed with the lid 2 and the connecting part 7, and the outer edge 3a of the front flange 3' (parallel to the connecting part 7). ' is bent downward, and the outer edge 4 of the front flange edge 4' of the lid body is bent so as to cover the outer edge 3a'.
a' is bent downward, and further the side end 4b of the outer edge 4a'
' is bent inward to form an engaging portion.

At this time, if the side end 4b' is bent into a hook-like cross section, the engagement effect will be increased.

In order to connect the lid 2 to the container 1 as shown in FIGS. 2 and 3, it is necessary to connect the lid 2 to the container 1 as shown in FIG.
After moving the front flange 4' of the lid by pressing it to transform it from the state A to the open state, the pressure is removed and the outer edge 4b' of the front flange of the lid is moved to the outer edge 3a of the front flange of the container. ' to engage (
condition).

At this time, as shown in FIG. 1, if one or several cross-section-shaped struts 5 and 6 are formed to bulge inward at opposing positions of the container 1 and the lid 2, the top of the strut 5 when the door is closed. a
, 5 a are brought into contact with each other to prevent the bottom of the lid from being deformed due to pressure.

Since such an engaged state occurs over the entire width of the front edge, the engagement force is large and the connection between the two is secure and firm, and will not come off even if handled roughly.

In addition, in FIG. 1, since the lid body 2 has both side flanges 4'' and outer edges 4a'' and 4a'' of the lid side flanges 4'' bent downward, the lid and the container are misaligned. This also prevents dirt and other contaminants from entering.

In this case, the same effect can be obtained by bending the container side outer edge portions 3a'', 3a'' upward.

Next, to release the connection of the free end part 8 of the container, press the container side part B as shown in FIG. Flange edge outer edge side edge 4b'
This is done by removing the outer edge 3a' of the front flange of the container.

If such an engaging part is formed not only at the front edge but also at the side edge, an even stronger connection can be obtained.Furthermore, the retaining device according to the present invention has an opening shape not only quadrilateral but also triangular or other. Needless to say, it can also be used for polygons.

Since the present invention has the above-mentioned configuration, it is possible to connect and release the engagement of the free ends of the lid and the container with a single touch, and the engagement cannot be released except by pressing the side part B of the container, making it extremely reliable. It has the advantage that a firm connection and engagement can be obtained and connection and release can be repeated any number of times.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the container according to the present invention, Fig. 2 is a side view, Fig. 3 is a front view, and Fig. 4 shows the engaged state of the front flange of the container. It is a line cut end view. 1...Container, 2...Lid, 3...
... Container rim, 3a'... Outer edge of front flange of container, 4... Lid rim, 4a'... Outer edge of front rim of lid. , 4b'...Outer edge of the front flange of the lid body, 8...Free end.

Claims (1)

[Scope of utility model registration request] In a synthetic resin thin plate container in which a container 1 and a lid 2 are connected so as to be foldable in two at a connecting portion 7, and each has a container rim 3 and a lid rim 4 on the outer periphery of the opening, the container is adjacent to the connecting portion 7. The outer edge 3a' of the front flange of the container on one or more sides, including the one side where the lid is closed, and the outer edge 4a' of the front flange of the lid body, which is in the position opposite to this when the lid is closed, are bent downward, respectively, and the new bend is made. The side edge 4b' of the outer edge 4a' of the front flange of the lid is connected to the outer edge 3a of the front flange of the container.
', and form one or several cross-section-shaped struts 5, 6 bulging inward at opposing positions of the container 1 and the lid 2, respectively. Container made of thin resin sheet.