JPH0318371Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> The present invention relates to a plastic container, and was developed specifically for the purpose of commercializing the lid in the shape originally designed.

<Prior Art> The structure of a lid of a conventional plastic container will be explained with reference to FIGS. 7, 8, and 9.

FIG. 7 is a partial end view taken along the line BB in FIG. 9 showing the lid fixed to the main body, FIG. 8 is a front view of the conventional lid, and FIG. 9 is a back view thereof.

As shown in FIGS. 8 and 9, a downwardly hanging edge 3 is provided on the outer periphery of the lid, and inside the lower end of this hanging edge 3, there is a folded rib 1 (seventh edge) of the container body.
There are locking claws 6 (four locations in the figure) that come into contact with the lower edge surface of the lid (see figure) to fix the lid to the main body. It has a structure in which a tongue piece 5 is provided for attaching and detaching the device.

When the tongue 5 of the lid having such a structure is expanded outward as shown by the two-dot chain line in FIG. 7, and the locking claw 6 near the base of the tongue 5 is folded back and removed from the rib 1, The lid fixed to the main body can be removed (the above is the same for the product of the present invention, and will be referred to hereafter as the ``principle for attaching and removing the lid'').

In the process of manufacturing lids for such plastic containers, after molding, the lids are stacked one on top of the other with the tongues 5 facing upward.

<Problem to be solved by the invention> When the lids are stacked in this way, there is a gap between the hanging edge 3 of the lower lid and the tongue pieces 5 provided at multiple locations on the same surface. The base of the outer circumferential surface of the hanging edge 3 of the overlapping lids is about to fit, and the lid of the plastic container that has not yet cooled down can be easily removed with the hanging edge 3 pointing outward as shown by the two-dot chain line in It deforms in such a way that it spreads out, and as time passes in this deformed state, its shape becomes fixed, making it undesirable as a product. Also, to prevent this from stacking the lids,
This required space, effort, and even attention, resulting in a decrease in work efficiency.

<Means for Solving the Problems> Therefore, in order to solve the above problems, a container comprising a main body having a folded rib 1 on the upper edge and a lid having a hanging edge 3 covering the rib 1 outwardly is provided. , guide recesses 2 are provided at several locations on the outer surface of the folded rib 1, recesses 4 are also provided on the outer peripheral surface of the hanging edge of the lid at portions corresponding to the recesses 2, and locking claws 6 are provided on the inside of the lower edge. Then, a plastic container was developed in which a tongue piece 5 was provided in the same plane as the outer surface.

<Function> With plastic containers having such a structure, even if the lids are stacked after being molded, the tongue piece 5 of the lower lid fits into the recess 4 of the upper lid. Further, the guide recess 2 serves as a guide for the locking claw 6 of the lid when the lid is attached or detached, and facilitates positioning of the lid on the main body.

<Examples> Examples of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a plan view of the lid of the embodiment, and FIG. 2 is a front view. FIG. 3 is a plan view of the main body, and FIG. 4 is a front view. FIG. 5 is a front view showing the state in which the lids are placed upside down after being molded;
FIG. 6 is an enlarged partial sectional view taken along the line AA in FIG. 5.

The characteristics of the plastic container of this invention are shown in Figure 3.
As shown in FIG. 4, a guide recess 2 reaching from the top to the bottom surface is provided on the outer peripheral surface of the folded rib 1 of the main body, and as shown in FIGS. 1 and 2, the hanging edge 3 of the lid A recess 4 is also provided on the outer circumferential surface of the guide recess 2 at a position corresponding to the guide recess 2. Note that the tongue piece 5 is provided on the same surface as the outer peripheral surface, and the locking claw 6
is provided on the lower edge of the inner peripheral surface of the hanging edge 3 at the same position as the conventional product. By using the above-mentioned ``principle for attaching and detaching the lid'' to the main body and lid, we have created a container that can be used in the same way as conventional products.

The guide recess 2 of the folding rib 1 of the main body is provided to receive the protrusion of the recess 4 of the lid, since the back side of the recess 4 protrudes by the same amount as the recessed surface. It also has the function of serving as a guide for the locking pawl 6 when putting the lid on, making positioning the lid on the main body much easier than with conventional products.

When the lids of the present invention are turned upside down and stacked with the tongue piece 5 facing upward as shown in FIG. Even if the positions of the tongues 5 and 5 of the upper lid match, even if the lids are not solidified sufficiently after molding, the lids can be stacked together in a fitted state without changing the shape of the lid.
and the tongue piece 5 of the lower lid are in the same vertical plane. That is, as seen in the conventional product, the outer circumference of the hanging edge 3 of the upper lid is larger than the inner circumference of the hanging edge 3 of the lower lid by the thickness of the tongue piece 5.
The base of the outer circumferential surface of the hanging edge 3 of the upper lid tries to fit between the tongue pieces 5 provided at multiple locations on the same surface as the hanging edge 3 of the lower lid, and the lower lid hangs. This prevents the hanging edge 3 and the tongue piece 5 from being bent outward.

<Effects of the Invention> As detailed above, the plastic containers of the present invention can be stacked without deforming the shape immediately after the lids are formed. This improves work efficiency and product quality in the manufacturing process, and also reduces the need for a large work area. Furthermore, when the lid is placed on the container body, the recesses in the body serve as guides for the locking claws on the lid, making it easy to position the lid on the body.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the lid of the embodiment, and FIG. 2 is a front view. FIG. 3 is a plan view of the main body, and FIG. 4 is a front view thereof. FIG. 5 is a front view showing a state in which the lids are placed upside down after being molded, and FIG. 6 is an enlarged partial sectional view taken along the line A-A in FIG. FIG. 7 is a partial end view taken along line BB in FIG. 9 with the lid placed over the main body. FIG. 8 is a front view of a conventional lid, and FIG. 9 is a back view of the lid. 1... Folded rib, 2... Guide depression, 3...
... hanging edge, 4... recess, 5... tongue piece, 6... locking claw.

Claims (1)

[Scope of utility model registration request] In a container consisting of a main body having a folded rib 1 on the upper edge and a lid having a hanging edge 3 that covers the outside of the rib, guide depressions 2 are provided at several places on the outer peripheral surface of the folded rib and correspond to the guide depressions 2. A plastic container characterized in that a depression 4 is provided on the outer peripheral surface of the hanging edge of the plastic container, a locking pawl 6 is provided on the lower inner surface, and a tongue piece 5 is provided in the same plane as the outer peripheral surface.