JPH0449075Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a plastic packaging container.

(Prior Art) Recently, plastic packaging containers have been widely used as containers for packaging various foodstuffs such as sweets and side dishes, or small items such as toys. For example, if you want to sell rice and side dishes in separate containers as a lunch box, or if you want to sell multiple containers containing one serving of natto, you can simply stack each container with a lid on and use the wrapping paper. They were wrapped with rubber bands or shrink-wrapped.

(Problems that the invention aims to solve) However, according to the above conventional method, since there is no connection between the upper and lower containers, each container cannot be fixed and moves, making packaging cumbersome and difficult to handle even after packaging. There was a problem.

This invention solves the above-mentioned conventional problems and aims to provide a plastic packaging container that can be easily connected and disconnected by connecting and disconnecting the upper and lower containers.

(Means for Solving the Problem) However, the plastic packaging container of this invention is provided with an inversely tapered outer protrusion that spreads downward along the outer peripheral surface of the side wall of the container at the bottom of the container. , made of plastic, characterized in that a lid removably fitted to the upper opening of the container is provided with a recess having an inversely tapered inner recess around the periphery into which the outer protrusion fits. It is a packaging container.

(Function) In the plastic packaging container of this invention, by fitting the lid of the lower container and the bottom of the upper container, both containers are connected as one and fixed to each other, and the bottom of the upper container By separating the fitting parts of the lids of the lower and lower containers from each other, the containers can be separated as separate containers with lids.

(Example) A first example of this invention will be described below with reference to FIG.

In the figure, 1 is a shallow cylindrical lower container, 2 is a shallow cylindrical upper container, 3 is a lid of the lower container, and 4 is a lid of an upper container, all of which are made of transparent plastic sheets such as hard PVC sheets. It is vacuum formed. At the bottom of the upper container 2, there is an inversely tapered outer convex portion 6 that extends downward along the outer peripheral surface of the side wall 5.
The lid 3 of the lower container is provided with a recess 8 having an inversely tapered inner recess 7 around the periphery into which the outer protrusion 6 fits. Further, on the inner periphery of the short cylindrical bent piece 9 on the outer periphery of the lid 3, a protruding strip-like outer fitting is provided on the inner periphery of the short cylindrical bent piece 9 that is externally fitted into the flange 10 that is bent at the upper opening end of the lower container 1. A section 11 is provided. In addition, in this embodiment, the upper container 2 and its lid 4 are
Since it has the same shape as the lower container 1 and its lid 3, an outer convex portion 6 is also provided at the bottom of the lower container 1, and other identical parts are shown with the same reference numerals. .

In order to use the plastic packaging container 12 having the above structure, the upper container 2 and the lower container 1 are filled with the same or different types of food products, toys, and other items, each is covered with a lid, and the containers are combined as necessary. After heat-sealing the lids, by fitting the outer protrusion 6 on the bottom of the upper container 2 into the inner recess 7 of the lid 3 of the lower container 1, both containers are connected as one, so they can be transported and displayed as is. , and may be sold, or the connected product may be packaged, transported, displayed, and sold. By pulling and separating the lid 3 and the upper container 2, the product purchaser can use the contents as separate containers. Since each part is made of thin plastic material, both containers can be easily attached and detached due to its elasticity. Further below the lower container 1,
Alternatively, a number of containers of the same shape can be stacked and connected in a similar manner above the upper container 2.

In addition, the upper containers 2 and 1 have flat bottom surfaces, and the gap between the bottom surface of the upper container 2 and the bottom surface of the recess 8 of the lid 3 of the lower container 1 is small when they are connected. There is less wasted space that is not useful, and the product storage capacity is large without being bulky when stacked and connected.

Next, FIG. 2 shows a second embodiment of this invention, in which a lid 21 having a recess 8 similar to that of the first embodiment is provided on the outer periphery of the recess and on the inner periphery of the upper opening of the lower container 22. In addition to fitting and removing the inner recess 23, the outer protrusion 6 at the bottom of the upper container 24 is fitted and removed into the inner recess 7 of the lid 21, as in the first embodiment. Note that the upper container 24 and the lower container 22, as well as the lid 25 of the upper container and the lid 21 of the lower container, each have the same shape. That is, in the plastic packaging container 26 of this embodiment, the lid 21 is connected to the lower container 2.
Second, the second embodiment has the same structure as the first embodiment, except that the lid 25 is fitted inside the upper container 24, and has the same functions and effects as the first embodiment.

This invention is not limited to the above-described embodiments; for example, the fitting portion between the lid and the container may have a shape other than those described above.

This invention can be applied to containers having a circular planar shape as well as rectangular, polygonal, fan-shaped, and various other shapes, and each part may be made of opaque plastic material.

(Effects of the invention) As explained above, according to this invention, a plurality of containers can be stacked vertically and connected in a detachable manner, and the upper and lower containers can be easily inserted and removed. A plastic packaging container is obtained that is convenient to handle during use. Furthermore, according to this invention, the bottom surface of the container can be made flat, and the gap between the bottom surface of the container in the connected state and the bottom surface of the recess in the lid facing it can be made small, which is useful for storing goods. A practically useful plastic packaging container is obtained, which has little wasted space, is not bulky when stacked and has a large article storage capacity.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a plastic packaging container showing a first embodiment of this invention, and FIG. 2 is a view corresponding to FIG. 1 showing a second embodiment of this invention. 1... lower container, 2... upper container, 3... lid,
4... Lid, 6... Outer convex part, 7... Inner recessed part, 8
... recess, 12 ... plastic packaging container, 2
DESCRIPTION OF SYMBOLS 1... Lid, 22... Lower container, 23... Inner recessed part, 24... Upper container, 25... Lid, 26... Plastic packaging container.

Claims (1)

[Scope of utility model registration request] The bottom of the container is provided with an inversely tapered outer convex portion that spreads downward along the outer peripheral surface of the side wall of the container, and the outer convex portion is attached to a lid that is removably fitted to the upper opening of the container. A plastic packaging container characterized by having a concave area surrounded by an inversely tapered inner concave part into which a convex part fits.