JP4871626B2 - Stacked packaging container - Google Patents

Description

  The present invention relates to a packaging container including a container body and a lid fitted to the container body, and more particularly to a packaging container that is advantageous when stacking the same shape.

  A packaging container can be provided simply and inexpensively by subjecting a synthetic resin sheet to pressure forming or vacuum forming, and in particular, a packaging container comprising a container body and a lid fitted to the container body. Has become very effective as a packaging material for storing lunch boxes and prepared dishes.

  In addition, this type of packaging body consisting of a container body and a lid is sealed with the same contents, and is "stacked" at convenience stores, supermarkets, and other stores, contributing to mass sales. It is what you buy. Such a “stacking” operation of packaging containers is naturally performed by a store clerk, but a “stacking” operation is also actually performed when a consumer picks it up and returns it. Therefore, the “stacking” operation must be performed easily and reliably.

For example, Patent Document 1 and Patent Document 2 can be seen as conventional techniques that allow such "stacking" work to be performed easily.
Japanese Patent Laid-Open No. 2002-19867, abstract, representative figure Japanese Patent Laid-Open No. 2005-82210, abstract, representative diagram

  Patent Document 1 aims to “provide an egg packaging container that is easy to see inside, can be stably displayed and stored even in a stacked state, has excellent airtightness, and prevents the spread of contamination outside the container”. An “egg packaging container” is shown. As shown in FIG. 8, this “egg packaging container” is mainly composed of “a non-chlorine synthetic resin sheet material bulging and molded in a plurality of rows in the left-right direction and a plurality of stages in the front-rear direction. , 11... And a lid 2 that covers the container body 1, and the container body 1 has an inclined outer periphery 12 whose outer peripheral edge is lower on the front side and higher on the rear side, and contains eggs. The front side of the recesses 11, 11 is shallow and the rear side is deep.The lid body 2 is provided with a top plate 21 that is horizontal in the closed position, and the outer peripheral edge thereof is an inclined outer peripheral edge whose front side is low and whose rear side is high. 22 is provided with a peripheral wall 26 including an inclined wall 23 that is long in the vertical direction on the front surface side, an inclined wall 24 that is short in the vertical direction on the rear surface side, and inclined walls 25 and 25 that are wide on the front surface side and narrow on the rear surface on the left and right surfaces. "

  That is, the “container” of this Patent Document 1 is “the inside is easy to see, can be stably displayed and stored even in a stacked state, has excellent airtightness, and prevents the spread of contamination outside the container”. Although the purpose has been achieved, it is thought that there may be the following problems.

  In other words, the “container” of Patent Document 1 is provided with an “inclined outer peripheral edge 12 whose outer peripheral edge is lower on the front surface side and higher on the rear surface side in order to facilitate internal confirmation when the stored eggs are displayed. And “the lid 2 includes a top plate 21 that is horizontal in the closed position, and the outer peripheral edge thereof is the inclined outer peripheral edge 22 whose front side is low and whose rear side is high”. The container body 1 and the lid body 2 must be very unstable when they are stacked.

  Generally, this type of packaging container consisting of a container body and a lid is stored and transported in the store until the contents are packed, and each container body and lid are individually packed in a box. is there. Therefore, as described above, if each of the container body 1 and the lid body 2 has an “inclined surface”, the stacking of the container body 1 and the lid body 2 will not be straight upward, and the boxing cannot be performed efficiently, and storage or It is thought that transportation is costly.

On the other hand, the “packaging container” of Patent Document 2 aims to “provide a packaging container that is manufactured by folding a predetermined portion of a plate-shaped blank and can be stably stacked on the top wall”. 9 and 10, as shown in FIG. 9 and FIG. 10, “a predetermined portion of the plate blank is manufactured by being folded and can be stacked on the top wall 21. At least a part of the bottom of the container A1 stacked on the top wall 21 is fitted, and a misalignment prevention insertion hole 25 is provided to prevent the misalignment of the container A1. the film fitting flange 11 which is laminated on the inner surface of the wall 21 are those having a structure in which it had been "is closed.

  However, the “packaging container” of this Patent Document 2 is “capable of stacking (corresponding to the stacking described in the present specification)”, but as shown in FIG. Since the main body is continuous and the structure is very complicated, it is considered that it is very difficult to form it with a synthetic resin sheet.

  In general, in a packaging container of a type in which a lid is fitted to the container main body, it should be taken into account that the lid is removed from the container main body. That is, in a packaging container consisting of a container body and a lid, when the lid is fitted to the container body, the fitting state must be maintained firmly, and when the lid is removed, the removal work is not performed. It must be easy. Neither of the above-mentioned Patent Documents 1 and 2 shows the concreteness of this point.

  Therefore, the present inventors have made a simple configuration for a packaging container comprising a container body and a lid fitted to the container body using a synthetic resin sheet, and can be reliably and easily stacked in a store, and the lid The present invention has been completed as a result of various studies on how to easily fit and remove the body.

  That is, the object of the present invention can be easily manufactured, can be reliably and easily stacked in the store, and can be easily fitted and removed from the lid, An object of the present invention is to provide a packaging container comprising a container body and a lid body with a simple configuration.

In order to solve the above problems, first, the means taken by the invention according to claim 1 will be described with reference numerals used in the description of the best mode described below.
"Synthesis containers Body 10 from the resin sheet is molded, and the fitting flange 11 of the container body 10, a packaging container 100 and a lid member 20 for being fitted in the fitting flange 21,
The top plate 23 of the lid 20 has a shape that is lifted by the side wall 22, and at the corner of the top plate 22, inside the fitting flange 21 on the lid 20 side, when viewed from a plane, the right angle is two. It becomes an equilateral triangle, and a right-angled portion formed by the isosceles bulges and forms a triangular pyramid-shaped pressing portion 24 toward the center of the top plate 23 ,
Further, the stackable packaging package characterized in that the engagement recesses 14 engaged with these pressing portions 24 are formed at the corners of the bottom surface 13 of the container body 10 constituting another packaging container 100. Container 100 "
It is.

  That is, the packaging container 100 according to claim 1 is formed from a synthetic resin sheet as shown in FIG. 5 and the container body 10 as shown in FIGS. Like the container body 10, the lid body 20 is formed from a synthetic resin sheet. The lid body 20 is formed of a transparent or translucent synthetic resin sheet so that the contents can be easily seen. It is a thing.

  First, as shown in FIGS. 2 and 3, the container body 10 is formed with a fitting flange 11 to be fitted with a lid 20, which will be described later, at the upper end portion of the side wall 12, and a bottom surface 13 at the lower end of the side wall 12. In the corner of the bottom surface 13, as shown in (1) to (3) of FIG. 14 is formed.

  As shown in FIGS. 1 to 3, the lid 20 is fitted with a fitting flange 11 on the container body 10 side to form a storage space inside the packaging container 100. Therefore, the top plate 23 is lifted by the inclined side wall 22. Thereby, in this packaging container 100, the storage space mentioned above is enlarged by the top plate 23 where the said cover body 20 became high.

  In addition, as shown in FIG. 1, the lid 20 is formed by bulging and forming triangular pyramid-shaped pressing portions 24 at the corners of the top plate 22. When 100 is “stacked” as shown in FIGS. 6 and 7, it engages with the engagement recess 14 formed at the corner of the bottom surface 13 of the container body 10 constituting another packaging container 100. It will be.

  The lid 20 constituting the packaging container 100 of the best mode to be described later is so-called “internally fitted” to the fitting flange 11 of the container body 10 as shown in FIGS. 2 and 3. In order to ensure the engagement at the time of fitting, an engaging portion 21a is formed on the fitting flange 21 of the lid 20 as shown in FIG.

  The packaging container 100 configured as described above is stacked as shown in FIGS. 6 and 7 after the contents are put therein. At this time, the engaging recess 14 of the upper container body 10 is engaged with the pressing portion 24 of the lower lid body 20 in the figure, and the upper and lower packaging containers 100 are stabilized with respect to each other. It becomes a state.

  Now, in order to remove the lid 20 constituting the packaging container 100 from the container body 10, the consumer selects and presses one of the pressing parts 24. Since the pressing portion 24 is formed in a triangular pyramid shape, the portion of the top plate 23 of the lid 20 that is close to the pressed pressing portion 24 bends inward to draw the surrounding side wall 22. If it does so, the engaging part 21a formed in the part close | similar to the corner | angular part of the fitting flange 21 will remove | deviate from the corner | angular part of the fitting flange 11 by the side of the container main body 10, and the cover body 20 will be in the container 100 for packaging in the part. It will open against. Therefore, the consumer puts his finger on the opened portion and further opens the lid body 20, whereby the other fitted or engaged portion is completely removed.

  Accordingly, the packaging container 100 according to the first aspect can be easily manufactured, can be reliably and easily stacked in the store, and the lid 20 can be easily removed by the triangular pyramid-shaped pressing portion 24. It has become something that can be done.

Moreover, in order to solve the said subject, the means which the invention which concerns on Claim 2 took is about the packaging container 100 which can be piled up of the said Claim 1,
“The chamfered surface 22 a is formed at the corner of the side wall 22 of the lid 20, and the upper portion of the chamfered surface 22 a and the one side surface 24 a of the pressing portion 24 are made continuous with a smooth curved surface”.

  That is, in the packaging container 100 according to this second aspect, the upper portion of the chamfered surface 22a formed at the corner portion of the side wall 22 of the lid 20 and the one side surface 24a of the pressing portion 24 are made continuous with a smooth curved surface. is there.

  Thereby, when a consumer presses the upper part of any one of the pressing parts 24 when opening the lid 20, the consumer's finger is placed on the upper part of the chamfered surface 22 a formed at the corner of the side wall 22. Since it touches on the smooth curved surface which continues one side 24a of press part 24, even if press part 24 is a thing of a triangular pyramid shape, a finger does not feel painful. Of course, since the pressing portion 24 is formed in a triangular pyramid shape, a portion of the top plate 23 of the lid 20 near the pressed pressing portion 24 bends inward, and the surrounding side wall 22 is formed. Pull in.

Then, the force pressing with a finger, the one side surface 24a and is distributed by the tracks surface formed by the beveled surface 22a, a top plate 23 of this lid body 20, is transmitted to the pressing portion near the pressing portion 24 The As a result, the portion close to the pressed pressing portion 24 bends inwardly and draws in the surrounding side wall 22, and the engaging portion 21 a formed in the portion near the corner portion of the fitting flange 21 is the container body 10. out from the corner portion of the fitting flange 11 of the side cover 20 is open the container body 10 or al.

  Further, when the packaging containers 100 are stacked, the gravity acts on the pressing portions 24, but since this force is dispersed in a portion near the pressed pressing portion 24 of the top plate 23, each pressing portion 24. It does not crush itself.

Therefore, the packaging container 100 according to the second aspect exhibits the same function as that of the first aspect, and pushes the pressing portion 24 with a finger by a curved surface formed by the one side surface 24a and the chamfered surface 22a. Therefore, it is possible to further easily remove the lid 20 from the container main body 10 without squeezing each pressing portion 24 itself.

Furthermore, in order to solve the said subject, the means which invention which concerns on Claim 3 took about the packaging container 100 which can be piled up of the said Claim 1 or Claim 2,
“The engagement portion 21a is formed in a portion near the corner portion of the outer edge of the fitting flange 21 ”.
It is.

In the packaging container 100, as described above, in order to remove the lid 20 constituting the container from the container body 10, the consumer selects one of the pressing portions 24 and presses it. . Since the pressing portion 24 is formed in a triangular pyramid shape, the portion of the top plate 23 of the lid 20 that is close to the pressed pressing portion 24 bends inward to draw the surrounding side wall 22. If it does so, the engaging part 21a formed in the part close | similar to the corner | angular part of the fitting flange 21 will remove | deviate from the corner | angular part of the fitting flange 11 by the side of the container main body 10, and the cover body 20 will be in the container 100 for packaging in the part. It will open against. Therefore, the consumer puts his finger on the opened portion and further opens the lid body 20, whereby the other fitted or engaged portion is completely removed.

Therefore, the packaging container 100 according to the third aspect exhibits the same function as that of the first or second aspect and further facilitates the removal of the lid 20 from the container body 10.

More passing is, firstly, inventions described in claim 1,
"Synthesis containers Body 10 from the resin sheet is molded, and the fitting flange 11 of the container body 10, a packaging container 100 and a lid member 20 for being fitted in the fitting flange 21,
The top plate 23 of the lid 20 has a shape that is lifted by the side wall 22, and at the corner of the top plate 22, inside the fitting flange 21 on the lid 20 side, when viewed from a plane, the right angle is two. It becomes an equilateral triangle, and a right-angled portion formed by the isosceles bulges and forms a triangular pyramid-shaped pressing portion 24 toward the center of the top plate 23 ,
And the engagement recess 14 engaged with these pressing parts 24 is formed in the corner | angular part of the bottom face 13 of the container main body 10 which comprises the other packaging container 100 ".
The main feature of the structure is that it can be easily manufactured, can be easily and easily stacked in the store, and can be easily fitted and removed from the lid 20. The packaging container 100 including the container main body 10 and the lid 20 can be provided with a simple configuration.

In particular, the packaging container 100 according to claim 1 has a right-angled isosceles triangle when viewed from the inside, inside the fitting flange 21 on the lid 20 side, and the right-angled portion formed by the isosceles is the top plate 23. Since the triangular pyramid-shaped pressing portion 24 bulging toward the center is bulged, the force when the pressing portion 24 is pressed is suitably distributed by the two sides forming the right-angled portion. When stacked, the pressing portions 24 themselves are not crushed. In addition, the pressing portion 24 can be easily engaged from above each of the engaging recesses 14 on the container body 10 side that is placed from above.

In addition, the packaging container 100 according to claim 2 is a stackable packaging container 100 according to claim 1,
“The chamfered surface 22a is formed at the corner of the side wall 22 of the lid 20, and the upper portion of the chamfered surface 22a and the one side surface 24a of the pressing portion 24 are made continuous with a smooth curved surface.”
In addition to exhibiting the same effect as that of the first aspect, the force pressed by the finger is dispersed by the curved surface formed by the one side surface 24a and the chamfered surface 22a. The engagement portion 21a formed in the portion near the corner portion of the fitting flange 21 is transferred to the portion near the pressed pressing portion 24 and pulled into the side wall 22, and the fitting flange 11 on the container body 10 side It can be easily removed from the corner.

Furthermore, in the packaging container which concerns on Claim 3, About the packaging container 100 which can be stacked | piled up of the said Claim 1 or Claim 2,
“The engagement portion 21a is formed in a portion near the corner portion of the outer edge of the fitting flange 21”.
In addition to exhibiting the same effect as that of the first or second aspect, the lid 20 can be removed from the container body 10 and further fitted. Easy and reliable.

  Next, the invention according to each claim configured as described above will be described with respect to the packaging container 100 which is the best mode shown in the drawings. FIG. 1 is a plan view of the packaging container 100 according to the best mode. The packaging container 100 is composed of the container body 10 shown in FIGS. 2 and 5 and the lid 20 shown in FIGS. 1, 2 and 4.

  The container body 10 and the lid body 20 are so-called “sheet molding” from a synthetic resin sheet, and are individually molded and packaged together. At the time of packing, since each container body 10 and lid 20 do not have an inclined surface as described in Patent Document 1, even if a large number of them are stacked, their center of gravity is stable, so that they fall down. There is no such thing as packaging. The lid 20 of the best mode is formed of a transparent or translucent material, and when the packaging container 100 is packed with vegetables and the like, the state is easily visually recognized through the lid 20 from the outside. I can do it.

  In addition, although the container main body 10 and the cover body 20 of the best form are made into the rectangular shape as shown in FIG. 1, if it has a corner | angular part, the thing of another polygonal shape may be sufficient.

  As shown in FIGS. 2, 3, and 5, the container body 10 includes a bottom surface 13, a side wall 12 rising from the bottom surface 13, and a fitting flange 11 formed at the upper end of the side wall 12. The fitting flange 11 is fitted with a fitting flange 21 of the lid 20 described later, and in the best mode, it is formed as a so-called “inner fitting type”. Of course, the fitting type of the fitting flange 11 and the fitting flange 21 may be a so-called “outer fitting type”.

  Further, as shown in FIGS. 2, 3, and 5, an engagement recess 14 is formed on the outer side of the bottom surface 13 of the container body 10 at a portion corresponding to the corner of the container body 10. In this best mode, these engagement recesses 14 are formed in all corners, and the direction in which the container main body 10 is engaged with the lid 20 of another packaging container 100 using this is used. There is no limitation on sex.

  On the other hand, as shown in FIGS. 1 to 4, the lid 20 has a fitting flange 21 that is fitted to the fitting flange 11 of the container body 10 described above, and this fitting flange. The side wall 22 is inclined from the inner side of 21 toward the top plate 23 at the upper end. Of course, the side wall 22 has the same height on all the surfaces so that it does not become inclined when a large number of lids 20 are stacked. In addition, in the fitting flange 21 of this best form, as shown in FIG. 2, the engaging part 21a engaged with the outer edge of the fitting flange 11 by the side of the container main body 10 is formed, This engaging part 21 a ensures the “stop function” when the lid 20 is fitted to the container body 10.

  And in the corner | angular part of the top plate 22 of this cover 20, the press part 24 of the triangular pyramid shape as shown in FIG.1 and FIG.2 is bulging-formed. When each pressing portion 24 according to the best mode is viewed in a plan view, the bottom surface thereof is a “right isosceles triangle” and the hypotenuse is located at the corner of the top plate 23 as shown in FIG. It is like that. As a result, the “right-angled portion” of the “right-angled isosceles triangle” is directed toward the center of the top plate 23, and the two sides forming this right-angled portion can suitably distribute the pressing force. The engagement from above the respective engagement recesses 14 on the main body 10 side can be easily performed.

  Furthermore, as shown in FIGS. 1 to 4, the one side surface 24 a of the pressing portion 24 toward the side wall 22 side is as shown in FIG. 1 to FIG. It is made continuous by a smooth curved surface. As a result, even if the pressing portion 24 is formed in a triangular pyramid shape, the pressing portion 24 and the side wall 22 are smoothly continuous, and “sheet molding” by the synthetic resin sheet and the pressing The bulge molding of the part 24 is made easy.

It is a top view of the packaging container which concerns on this invention, and the cover body which comprises this. It is a front view of the packaging container. It is the longitudinal cross-sectional view seen along the 1-1 line in FIG. 1 of the packaging container. It is a bottom view of a lid. The container main body is shown, (1) is a top view, (2) is a front view, (3) is a bottom view. It is a front view of the state which piled up the container for two packaging. It is a longitudinal cross-sectional view of a state in which two packaging containers are stacked. It is a disassembled perspective view which shows a prior art. It is a disassembled perspective view which shows another prior art. It is a longitudinal cross-sectional view when what was shown in FIG. 9 was stacked.

DESCRIPTION OF SYMBOLS 100 Packaging container 10 Container main body 11 Fitting flange 12 Side wall 13 Bottom surface 14 Engaging recess 20 Lid 21 Fitting flange 21a Engaging part 22 Side wall 22a Chamfering surface 23 Top plate 24 Press part 24a One side surface

Claims (3)

Containers this body is molded from a synthetic resin sheet, and the fitting flange of the container body, a packing container comprising a lid to be fitted in the fitting flange,
The top plate of the lid body has a shape that is lifted by a side wall, and is a corner portion of the top plate inside the fitting flange on the lid body side, and is a right-angled isosceles triangle when viewed from a plane, A right-angled part formed by isosceles bulges and forms a triangular pyramid-shaped pressing part toward the center of the top plate ,
And the stacking packaging container characterized by forming the engagement recessed part engaged with these press parts in the corner | angular part of the bottom face of the said container main body which comprises the said other packaging container.   2. The stacked structure according to claim 1, wherein a chamfered surface is formed at a corner portion of the side wall of the lid body, and an upper portion of the chamfered surface and one side surface of the pressing portion are made continuous by a smooth curved surface. Possible packaging container. The stackable packaging container according to claim 1 or 2, wherein an engaging portion is formed in a portion near the corner portion of the outer edge of the fitting flange .

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