JPH0423768Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention [Field of industrial application] This invention is suitable for use in disposable lunch containers such as station lunches, store-bought lunches, and catered lunches, supermarkets, fast food stores, and other various food stores. The present invention relates to packaging containers that are frequently used as packaging materials for foods and other products.

[Conventional technology]

This type of packaging container is made of polystyrene, polypropylene, polyethylene, polyvinyl chloride, etc.
A semi-rigid or hard, solid-walled or foamed-walled, single-layer or laminated plastic sheet is used as a material, and it is formed into a desired shape by an appropriate sheet forming method such as vacuum forming, pressure forming, or hot press forming. It is mass-produced by molding it into a container shape.

There are also containers made of water- and oil-resistant paper that are sheet-formed using a heat press. There are also thin-walled plastic injection molded products.

Some are without lids, while others have lids.
There are two types of containers with a lid: one in which the lid is separated from the container body, and the other in which the lid is connected to the container body via a hinge connection so that it can be rotated freely to open and close.

[Problem that the invention attempts to solve]

The present invention particularly relates to one with a lid.

In a packaging container with a lid, the fitting structure of the lid to the container main body is generally such that the opening periphery of the container main body 1 is connected to a substantially horizontal flange edge 1 of an appropriate width, as shown in FIG. 3a.
a, or the outer periphery of the flange edge 1a is further provided with a lower bent edge 1b of an appropriate width as shown in FIG. Or, it is provided with a substantially horizontal flange portion 2a and a lower bent edge 2b on its outer periphery, which are fitted from above into the flange portions 1a and 1b, and the lower bent edge 2b extends over substantially the entire length of the lower bent edge 2b, or Inward locking protrusions 2c that are hooked to the tip edge of the flange edge 1a or the lower edge of the lower bent edge 1b on the container body 1 side at a plurality of key points at appropriate intervals.
The outer peripheral edges 2a, 2b, 2c on the lid body 2 side are mutually circumferentially fitted to the outer peripheral edge 1a or 1a, 1b on the container body 1 side, so that the outer peripheral edge 2a, 2b, 2c on the container body 1 side The lid 2 is fitted quite firmly and is held without coming off.

However, as mentioned above, the lid body 2 is
On the contrary, the fact that the lid body 2 is fitted tightly and held in place without coming off makes it difficult to remove the lid body 2.
It takes time to open the lid.

In other words, when opening the lid, the outer peripheral edge portions 1a, 1 of the container body 1
Since the outer peripheral edges 2a and 2b of the lid body 2 cover the outer edges 2a and 2b of the lid body 2 and cannot be used as a finger rest when opening the lid, the side walls of the container body 1 are firmly grasped and held down with one hand, and the other hand is used to hold the container body 1 in place. With your fingers, pry a part of the lower bent edge 2b of the outer periphery of the lid body 2 outward as shown by the two-dot chain line and spread it out to partially release the fitting engagement with the container body 1.

In this case, the range of removal is only a small part of the outer periphery of the lid, and the entire lid 2 cannot be easily removed from the container body 1. Container body 1 is forced to peel off lid 2 against the still sufficient fitting force.
If you try to remove it from the container, it may cause irreversible distortion or tearing in the lid 2 or the container body 1, or it may shake the container body greatly and disturb the arrangement of the contents.
Otherwise, the container body may slip off. Therefore, the lower bent edge 2b of the lid body 2 is sequentially pried outward at multiple points along its length, and the fitting engagement with the container body 1 is partially disengaged one after another. The lid had to be opened, so it was difficult to open.

In particular, opening the lid becomes more difficult when the container body 1 is in the shape of a tray with a shallow bottom and the container body cannot be firmly grasped and held down when opening the lid.

The object of the present invention is to provide a container of this type that can be opened easily and quickly with one touch.

B. Structure of the invention [Means for solving the problem] The invention consists of a container 1 and an outer edge portion 1a or 1 of the container body.
In a packaging container comprising a lid 2 having locking outer edges 2a, 2b, and 2c that overlap and engage with the locking outer edges 2a and 1b, on the top surface of the lid along the locking outer edges of the lid 2. A finger hook ear portion provided with at least two raised protrusions 2d spaced apart from each other, and provided with rigidity by protruding outward from the side of the locking outer edge portion corresponding to the position of each raised protrusion. The present invention provides a packaging container characterized by: 2e.

[Effect]

The lid 2 fitted to the container body 1 is firmly secured and prevented from coming off like conventional products by the engagement of the locking outer edges 2a to 2c on the lid 2 side with the outer edge 1a or 1a, 1b on the container body 1 side. Retained.

To open the lid, place the covered container on a table, etc., and place the thumb a of one hand on the raised protrusion 2d at one location on the lid body 2.
Place the index finger b on the underside of the finger hook ear 2e corresponding to d.
Or hook your middle finger. Also, the thumb and index finger or middle finger of the other hand are respectively placed on the raised convex portion 2d and the finger hook portion 2e on the other side of the lid body 2 in the same manner as on the one hand side.

And each raised convex portion 2 in the above one place and other places.
d and 2d are pressed downward with the thumbs a of each hand, and the finger hook ears 2e and 2e are pried up with the index finger b or middle finger hooked thereon.

Then, the lid locking outer edges on the left and right sides centering on the finger hooks 2d and 2d at the above-mentioned one location and the other locations, respectively, extend over a wide range to the outer edge 1 on the container body 1 side.
a or 1a, 1b, and as a result, the entire lid 2 easily comes off from the container body 1, and the lid can be opened easily.

In the above case, if the lid is still incompletely opened by just prying up the two finger hook ears 2e and 2e on one part and the other part of the lid body 2, then the other finger hook ears are opened. You can open the lid completely by prying it up in the same way as above.

The above-mentioned opening operation does not require grasping and pressing the container body 1 with one hand, so even if the container body 1 is in the form of a shallow tray, the lid can be opened easily and quickly without any trouble. I can do it.

〔Example〕

Example 1 (Fig. 1 a to f) This example is a container body 1 in the shape of a shallow tray with a substantially oval shape.
(Fig. 1b), and a lid body 2 that is separate from the container body and has locking outer edges 2a, 2b, and 2c that overlap and engage with the outer edges 1a and 1b of the container body.
(Fig. 1a) is provided with a total of four raised protrusions 2d at the four corners of the upper surface of the lid, and a locking outer edge portion corresponding to the position of each raised protrusion 2d. A finger hook (lug) 2e is provided on the side and extends outward.
Each ear portion 2e is provided with a rib convex portion 2f to provide rigidity. Furthermore, the upper surface portions of the four corners of the lid provided with the raised protrusions 2d also have increased rigidity due to the rib effect of the raised protrusions.

FIG. 1c is a partially cutaway front view of the container with the lid 2 fitted, showing the lower bent edge 2 of the outer periphery of the lid.
Inward locking protrusions 2c provided at key points of b
was previously engaged with the lower edge of the lower bent edge 1b of the outer periphery of the container body (Fig. 1 c, d), and the lid body 2 was firmly fitted into the container body 1 and removed. It is stopped and held.

To open the lid, place the covered container on a table, etc., and press the raised convex portions 2 at two diagonal corners of the lid 2.
d, 2d and the finger hook ears 2e, 2e, as explained in the section of the above-mentioned operation, place the thumb a and the index finger b or middle finger of the left and right hands, respectively (Fig. 1e),
Pry up the two ears 2e, 2e (Fig. 1f). Then, the lid locking outer edges 2a, 2b, 2c on the left and right sides are separated from the outer edges 1a, 1b on the container body 1 side in a wide range centered on the two ears 2e, 2e that have been pried up. As a result, the entire lid body 2 easily comes off from the container body 1 to be in an open state.

If the lid is still incompletely opened with this alone, the remaining two diagonal ears 2e, 2e can be pried up in the same manner as described above, and the lid can be opened completely.

There is no need to hold the container body 1 by hand when opening the lid, so even if the container body 1 is in the form of a shallow tray as in this example and is originally difficult to hold by hand, it is easy to close the container body 1. Easy and hassle-free
The lid can be opened quickly.

Example 2 (Fig. 2 a, b) This example deals with a container in which the lid 2 is connected to the container body 1 in a series via a hinge connection part 3 that can freely rotate to open and close. Raised protrusions 2d, 2d and finger hook ears 2 are provided at two left and right corners on the side opposite to the hinge connecting portion 3, respectively, in the same manner as in the above example.
e, 2e. The lid can be opened easily and quickly in the same manner as in the previous example.

C. Effects of the invention As described above, according to the invention, this type of container with a lid can be opened easily and quickly with a single touch, and the intended purpose is well achieved.

[Brief explanation of the drawing]

Fig. 1 shows the first embodiment, in which Fig. 1a is a plan view of the lid, Fig. 1b is a plan view of the container body, and Fig. 1c is a view of the container with the lid fitted. Figure d is a cross-sectional view of the lower bent edge of the container body and the inward protruding stripe of the lid that engage with each other; Figure e is a cross-sectional view of the ear portion before being turned up. , Figure f is a cross-sectional view of the ear part in the flipped up state, and the second
The figures show the second embodiment, in which Figure a is a partially cutaway plan view, Figure b is a partially cutaway side view, and Figures 3a and 3b are main points of an example of the lid locking structure. Sectional view of the section. 1 is the container body, 2 is the lid, 3 is the hinge joint, a is the thumb, and b is the index finger or middle finger.

Claims (1)

[Claims for Utility Model Registration] Container 1 and locking outer edges 2a, 2 that overlap and engage outer edges 1a, 1b of the container body.
A packaging container consisting of a lid 2 having a lid 2a and a lid 2c, at least two raised convex portions 2d are provided at a distance from each other on the top surface of the lid along the outer locking edge of the lid 2, and A packaging container characterized in that a finger hook portion 2e is provided on the side of the locking outer edge portion corresponding to each raised convex portion position and protrudes outward to provide rigidity.