JP2002114246A - Packaging container comprising container main body and cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container whose cover can tightly fit and seal a container main body, can begin to removed by finger preventing the flow out of the contents, and can be easily removed in the end. SOLUTION: This relates to a packaging container whose cover 20 is either inwardly or outwardly fits the container main body 10 by fitting a fitting protrusion formed on the cover 20 on a fitting part 11 formed on a container main body 10. A part of the outer peripheral edge of the cover 20 is protruded forming a protrusion 23. By protruding a part of the protrusion 23 downward, a finger fitting part 24 is formed integrally. By placing a finger on the fitting part 24 and by moving the same upward, a fitting condition begins to be released.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging container, and more particularly, to a container body formed of a synthetic resin sheet, wherein a lid also formed of a synthetic resin sheet can be integrated by external fitting or internal / external fitting. The present invention relates to a packaging container.

[0002]

2. Description of the Related Art In recent years, various packaging containers formed of a synthetic resin sheet for fitting a lid to a container body have been proposed. What is always a problem is "remove the lid".

In other words, it is very difficult to remove a lid made of a thin material such as a synthetic resin sheet from a container body without popping out the contents when the container body itself is also formed of a thin synthetic resin sheet. It is. In particular, the ability to easily remove the lid while enhancing the fitting performance to ensure sufficient sealing when the lid is fitted to the container body must have the conflicting performance at the same time. It has to be very difficult.

[0004] For this reason, in Japanese Patent Application Laid-Open No. 8-183551, an object is to provide a food container made of synthetic resin which can be easily removed from the container body by a simple operation and which is excellent in handling. As shown in FIG. 6 and FIG. 7, “the container body 1 having the fitting portion 1c formed by folding the periphery to the outside of the peripheral wall 1b, and the inside of the edge portion 2a that can be fitted to the fitting portion 1c, And a lid 2 having a rising wall surface 2b, a concave portion 2d is formed in a corner of the rising wall surface 2b, and an edge portion of the concave portion 2d is formed as a wide surface 2e. I have.

[0005] However, in this food container, as shown in FIG. 7 in particular, "the wide surface 2e is pressed with a fingertip while inserting a thumb into the recess 2d, and the forefinger is brought into contact with the lower end of the tip of the edge 2a. , The tip end of the thumb is used as a fulcrum, and the index finger is used as a point of action, the lower end of the tip on the index finger side is pivoted downward, and the edge 2a is turned up from the fitting portion 1c, and It is necessary to "release the fitting to the container body 1" (paragraph 0013 of the above-mentioned publication), and eventually, it is necessary to "grab the edge of the lid 2".

As in the conventional food container shown in FIGS. 6 and 7, in order to "grab the edge of the lid 2" and pull it up, the container body must be naturally held by the opposite hand. That is, a force is applied to the container body formed of the thin synthetic resin sheet. If the lid suddenly comes off, the container body is crushed by the force applied to the container body, and the contents, especially the liquid, spill out.

The inventor of the present invention has conducted various studies on how to remove the lid so that the contents do not spill out. Rather than suddenly detaching from the main body, you can do a partial removal, that is, a kick out for removal comes out, and it is possible to remove it little by little based on this, and realize that good results are produced. The invention was completed.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation of a packaging container comprising a container body and a lid of this type. Without removing the lid.

That is, first, the object of the invention according to claim 1 is that not only can the sealing property of the cover body when the cover body is fitted to the container body be sufficiently ensured, but also the leakage of the contents can be performed by the fingertip operation. An object of the present invention is to provide a packaging container capable of preventing the lid from being removed while preventing the lid, and finally allowing the lid to be easily removed.

[0010] The object of the invention according to claim 2 is to achieve the same object as the invention of claim 1 and to make the removal of the lid more easily and surely. An object of the present invention is to provide a packaging container that can be used.

A third object of the present invention is to provide a packaging container which can achieve the same object as the first or second aspect of the present invention and can be manufactured more easily. To provide.

[0012]

Means for Solving the Problems In order to solve the above problems, first, means according to the first aspect of the present invention will be described with reference numerals used in the following description of embodiments. "In the engaging portion 11 formed on the container body 10 side,
A packaging container in which the lid 20 is externally or internally and externally fitted to the container body 10 by engaging an engagement projection 21 formed on the lid 20 side. A part of the peripheral edge 22 is protruded to form a protruding part 23, and a part of the protruding part 23 is bulged downward to integrally form a finger locking part 24, and this finger locking is performed. A packaging container characterized by being able to make a kick to release the fitted state by putting a finger on the part 24 and moving it upward.

That is, the packaging container according to the first aspect comprises a container body 10 having the engaging portion 11 shown in FIG.
The cover 20 has an engagement protrusion 21 engaged with the engagement portion 11 as shown in FIG. 2, and the cover 20 is externally or internally and externally fitted to the container main body 10 to be integrated. It is used after being converted. In this packaging container, a finger locking portion 24 is integrally formed on a part of the lid 20. A part of the fitting to the container body 10 is released, so that "making a kick" for removing the lid 20 can be performed.

Particularly, as shown in FIGS. 2 and 4, the finger locking portion 24 of the lid 20 is opened above the lower tapered portion. Since each finger locking portion 24 slips into the lower finger locking portion 24, the stacking can be reliably performed, and also helps prevent displacement after stacking.

The finger locking portion 24 of the lid 20 is formed simultaneously with the molding of the lid 20 from a synthetic resin sheet, and is easily formed by a general vacuum or pressure forming method. It is gaining. That is, as shown in FIG. 2A, the finger locking portion 24 is formed with a protruding portion 23 except for a part of the synthetic resin sheet which is usually cut off from the outer peripheral edge 22, and this protruding portion 23 is formed. A part of the portion 23 can be formed by, for example, extruding with a projection formed on the upper mold, or drawing in a vacuum into a recess formed on the lower mold.

The projection 23 on which the finger locking portion 24 is to be formed is formed at the same position as the outer peripheral edge 22.
Although it is easy to cut off by the blade immediately after molding, it may be at a position higher than the outer peripheral edge 22 or at a lower position.

When the lid 20 having the above-described finger locking portion 24 is externally or internally or externally fitted to the container main body 10, the finger locking portion 24 is provided as shown in FIG. c) and as shown in FIG. 4, in a state in which a gap is formed between the container body 10 and the upper side surface so that a human finger can be inserted.
It hangs down from the projection 23 on the lid 20 side.
Therefore, when removing the lid 20, a finger is inserted inside the finger locking portion 24 as shown in FIG. 4, and the finger locking portion 24 is pulled up as shown in FIG.

At this time, the projecting portion 23 formed by the finger locking portion 24 is continuous with the outer peripheral edge 22 of the lid 20 and is integrated with a part of the outer peripheral edge 22. Therefore, by lifting the finger locking portion 24 shown in FIG.
By removing a part of the fitting of the lid 20, a kick for opening the lid 20 is produced. In addition, the finger locking portion 24 can be pulled up by one finger, so that it is not necessary to apply a large force to the container body 10 side, especially a large force that causes the contents to pop out when the lid 20 is opened. As a result, when the kick is made, the contents of the liquid and the like in the container body 10 do not pop out.

As described above, when the lid 20 is opened, that is, when the engagement protrusion 21 of the lid 20 is partially released from the engagement with the engagement portion 11 of the container body 10. This allows air to enter and exit the container body 10 freely. Then, after that, the remaining fitting state is released, that is, the lid 20 is removed. However, since the opening has already been completed, the opening operation may be performed literally as "opening". This work can be performed with very light force because the air can freely enter and exit from the “Kicking”, and it does not inadvertently shake the entire packaging container to spill contents. .

The lid 20 removed from the container body 10
May be placed on a table or the like. At this time, since the finger locking portion 24 projects downward from the lower surface of the lid 20, the finger locking portion 24 serves as a support, Body 2
The whole number 0 is supported obliquely on the table.
That is, the finger locking portions 2 projecting downward from the back surface of the lid 20.
By virtue of the presence of the cover 4, the lid 20 is not placed on the table, and, for example, the melted ice cream, which is a storage item attached to the back surface of the lid 20, adheres to the table. It doesn't matter.

Therefore, in the packaging container according to the first aspect, it is possible to sufficiently secure the hermeticity when the lid 20 is fitted to the container body 10, and also to prevent leakage of the contents by operating the fingertip. While the lid can be removed, the lid can be removed, and finally the lid can be easily removed.

In order to solve the above-mentioned problem, a means adopted in the invention according to claim 2 is that the packaging container according to claim 1 is described as follows.
That a part 21a of the engaging projection 21 is formed. "

That is, the packaging container according to claim 2 is
A part of the engagement protrusion 21, that is, a proximity engagement protrusion 21 a is formed on the side of the lid 20 immediately inside or in proximity to the finger locking portion 24. 21a allows the lid 20 to maintain the fitted state of the container body 10 and, when the finger locking portion 24 is pulled up by one finger, the close engagement projection 2
The release of the fitted state at 1a can be performed more easily.

Therefore, in the packaging container according to the second aspect of the present invention, since the proximity engaging projection 21a is formed immediately adjacent to the finger locking portion 24, the opening operation of the finger locking portion 24 can be performed more easily. In addition, the lid 20 can be removed without spilling the middle part of the container body 10.

In order to solve the above-mentioned problem, a means adopted by the invention according to claim 3 is that the finger-holding portion 24 is formed with respect to the packaging container according to claim 1 or 2. The height of the projection 23 is substantially the same as the height of the outer peripheral edge 22 of the lid 20. "

That is, the packaging container according to claim 3 is
The position of the protruding portion 23 where the finger locking portion 24 is formed is
Is formed so as to be substantially the same as the outer peripheral edge 22 of the packaging container, so that after the molding, the protrusion 23 can be cut out with a cutting tool at the same time as the outer peripheral edge 22 is formed. In particular, the manufacture of the lid 20 can be performed very easily.

Therefore, the packaging container according to the third aspect of the present invention is characterized in that the projecting portion 23 and the finger engaging portion 24 formed on the projecting portion 23 are partially formed on a part of the outer peripheral edge 22 of the lid 20. Even if it is, the cutout of these protruding portions 23 and the finger locking portions 2
The molding of No. 4 can be easily performed without greatly changing the structure of the cutting device currently used, and the stability of the product molding can be ensured by not largely changing the cutting device.

[0028]

BEST MODE FOR CARRYING OUT THE INVENTION Next, each invention configured as described above will be described with respect to a packaging container which is an embodiment shown in the drawings. Since they are substantially included, the following description will focus on the packaging container of this embodiment.

FIG. 1 shows a plan view (a) of a container body 10 constituting the packaging container and a front view (b) in which the right half is sectioned. The container body 10 is made of polyethylene terephthalate. It is formed by press-pneumatic or vacuum forming a synthetic resin sheet made of the same. Also,
As shown in FIGS. 1B and 4, the container body 10 is formed on the outer peripheral edge of the upper opening, and engages with an engagement projection 21 on the lid 20 described later. Having an engaging portion 11.

The container body 10 can be stacked in a large number before being filled with contents, and has a blocking preventing projection 12 formed so as not to stick to each other at this time. Things.

FIG. 2 shows the lid 20 constituting the packaging container. That is, like the container body 10, the lid 20 is formed by pressing or vacuum forming a synthetic resin sheet made of polyethylene terephthalate or the like. It was formed by a cutting machine.

As shown in FIG. 2 (b), FIG. 3 and FIG.
Engagement projection 21 with which engagement part 11 on the 0 side is engaged
The lid 20 is externally fitted or internally / externally fitted to the container body 10 by the engagement projections 21.

Although the engagement projection 21 of the lid 20 is formed as a so-called undercut portion, it may be formed so as to surround the entire periphery of the opening of the lid 20. In this example, a device having a fixed length is formed at a plurality of locations (for example, four locations). Further, in the present embodiment, the depth of the undercut portion of the engagement protrusion 21 can be set to 0.6 mm to 0.7 mm, which is 0.3 mm to 0.7 mm as in the related art. 5mm
The engagement portion 1 on the container body 10 side can be made deeper.
1 can be made to have a sufficient engaging force. This is because the protrusion 2
3 and the presence of the formed finger locking portion 24.

As shown in FIG. 2A, the finger locking portion 24 is formed on a protruding portion 23 formed on a part of the outer peripheral edge 22, and corresponds to the protruding portion 23 of the synthetic resin sheet. The portion to be formed is formed by bulging when the lid 20 is formed. In other words, the finger locking portion 24 is formed simultaneously with the forming die when the entire lid 20 is compressed or vacuum formed, and the protrusion 23 is formed when the outer peripheral edge 22 is trimmed by the cutting device after the forming. Is to be cut out.

As shown in FIG. 2A, FIG. 3 and FIG. 4, the finger engaging portion 24 of this embodiment has an elliptical upper opening (a circular arc at both ends and a long gap between them). However, the shape of the upper opening may be a rectangle or a circle. Also, this finger locking portion 24
As shown in FIG. 2C, the shape is substantially inverted trapezoidal, but may be a semicircular shape or a rectangular shape. As shown, any shape may be used as long as the finger can be sufficiently hung on the back side.

As shown in FIG. 4 and FIG. 5, the portion of the lid 20 which is located immediately
Proximity engagement projections 21a are formed, and these proximity engagement projections 21a are used when fitting the lid 20 to the container main body 10.
It engages with the engaging portion 11 on the container body 10 side. Of course, the proximity engagement projection 21a is formed so as to be at the same height as the other engagement projections 21 and the finger engagement portions 24
When the is pulled up, as shown in FIG. 5, the engagement with the engaging portion 11 on the container body 10 side is released.

As shown in FIG. 2A, a blocking prevention projection 25 for preventing "blocking" when a large number of these lids 20 are stacked is formed on the lid 20 as well. It is.

Of course, the container main body 10 shown in FIG. 1 and the lid 20 shown in FIG. 2 to be fitted thereto have a circular shape as an example, but the present invention is not limited to this. Is what you can do.

[0039]

As described in detail above, first, in the invention according to claim 1, as exemplified in the above embodiment,
"By engaging the engaging projections 21 formed on the lid body 20 with the engaging portions 11 formed on the container main body 10 side, the lid body 20 is externally or internally and externally fitted to the container main body 10. A part of the outer peripheral edge 22 of the lid 20 is made to protrude to form a protruding portion 23, and a part of the protruding portion 23 is bulged downward, thereby finger-engaging. The part 24 is formed integrally, and a finger can be put on the finger locking part 24 and moved upward to make a kick to release the fitted state. " With this, of course, it is possible to sufficiently secure the sealing performance when the lid is fitted to the container body,
By the operation of the fingertip, it is possible to make a kick off the lid while preventing the leakage of the contents, and finally, it is possible to provide a packaging container capable of easily removing the lid.

In particular, since the packaging container according to the first aspect has the finger locking portion 24 protruding downward from the back surface of the lid 20, the lid 2 removed from the container body 10 is provided.
For example, 0 is not put on the table, for example, and the table is not stained by the melted ice cream or the like, which is the storage material attached to the back surface of the lid 20.

According to the second aspect of the present invention, there is provided the packaging container according to the second aspect, wherein a part of the engaging projection 21 on the portion of the lid 20 close to the finger engaging portion 24 is provided.
Has a structural feature, thereby achieving the same object as the invention of claim 1 and making it easier and more reliable to remove the lid. Can be provided.

Further, according to the third aspect of the present invention, in the packaging container according to the first or second aspect, "the height of the projecting portion 23 in which the finger locking portion 24 is formed is set to the outside of the lid 20. The height of the peripheral edge 22 is substantially the same as that of the peripheral edge 22 ", whereby the object similar to that of the first or second aspect of the present invention can be achieved, and the manufacturing can be performed more easily. A container can be provided.

[Brief description of the drawings]

1A and 1B show a container main body constituting a packaging container according to the present invention, wherein FIG. 1A is a plan view, and FIG. 1B is a front view of a right half section.

FIG. 2 shows a lid constituting the packaging container;
(A) is a plan view, (b) is a cross-sectional view taken along line 1-1 in (a), and (c) is an enlarged front view of a finger engaging portion formed on a lid.

FIG. 3 is a partially enlarged sectional view showing a state where the lid is about to be fitted to a container body.

FIG. 4 is a partially enlarged cross-sectional view showing a fitted container main body and a lid.

FIG. 5 is a partially enlarged cross-sectional view showing a state in which a finger is hooked on a finger engaging portion and pulled up.

FIG. 6 is a partial plan view of a conventional packaging container.

FIG. 7 is a partial cross-sectional view showing a state where the lid of the packaging container shown in FIG. 6 is about to be opened.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Container main body 11 Engagement part 12 Blocking prevention protrusion 20 Lid 21 Engagement protrusion 21a Proximity engagement protrusion 22 Outer peripheral edge 23 Projection part 24 Finger locking part 25 Blocking prevention protrusion

Claims (3)

[Claims] An engaging projection formed on a lid body is engaged with an engaging portion formed on a container main body side, so that the lid body is externally or internally and externally fitted to the container main body. A packaging container, wherein a part of an outer peripheral edge of the lid body is made to protrude to form a protruding portion, and a part of the protruding portion is bulged downward to integrally form a finger locking portion. A packaging container characterized in that a finger can be hung on the finger engaging portion and moved upward to make a kick for releasing the fitted state. 2. A packaging container according to claim 1, wherein a part of said engaging projection is formed in a portion of said lid close to said finger locking portion. 3. The package according to claim 1, wherein the height of the projection on which the finger locking portion is formed is substantially the same as the height of the outer peripheral edge of the lid. Container.