JP7180856B2 - packaging container - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging container in which an inner box can be pulled out from an outer box and contents can be taken out.

As this type of packaging container, for example, packaging containers for granular chocolate confectionery (inclusions) such as almond chocolate are known.
For example, this type of packaging container for chocolate confectionery includes a rectangular outer box with an open end face, and a rectangular outer box with an open upper surface, which is accommodated in the outer box and from the open end face of the outer box. an inner box that can be slid in and out, a sheet-like inner cover made of glassine paper that is fixed to the inner box at one end side and arranged so as to cover the chocolate confectionery contained in the inner box; consists of
The inner lid part is used for the purpose of protecting the enclosed chocolate confectionery from external shocks and for the purpose of preventing oil from the chocolate confectionery from seeping into the outer box.

As a packaging container having such a sheet-like inner lid, a packaging container having a structure as disclosed in Patent Document 1 has been proposed.
According to the packaging container disclosed in Patent Document 1, a part (tip) of the inner lid made of glassine paper is fixed to the open end of the outer box, and the inner lid is automatically opened by pulling out the inner box. To provide a structure that rolls up and eliminates the troublesomeness of rolling up an inner lid part.
However, in the prior art such as Patent Document 1, it is necessary to fix the front end of the sheet-shaped inner lid portion to the outer box, and such work must be manually performed by the operator one by one. In addition to being very troublesome, it is thought that there is a risk of causing a great loss of manufacturing time, so it is not actually provided to the market.
Therefore, even now, an inner lid made of glassine paper is still provided, and after pulling out the inner box, it is necessary to turn up the inner lid when eating the chocolate confectionery. Because it was so soft, it became even more difficult to turn it up, especially when the remaining amount of chocolate confectionery was low.

By the way, the manufacturing process of this type of chocolate confectionery has become increasingly automated, and a predetermined amount of chocolate confectionery is filled from above into the inner boxes that are sequentially fed to the production line. , further flow downstream in the production line, then housed in an outer box, and then the entire outer box is wrapped with an outer film.
In such a manufacturing process, the inner boxes that are successively transferred to the production line are arranged such that the inner lid portion made of glassine paper is placed on the rear end side of the inner box so that the chocolate can be filled smoothly in the filling process of the chocolate confectionery. , it is spread outward (rolled up) and sent to the production line.
Then, a predetermined amount of granular chocolate confectionery is put into the inner box at a predetermined position, then flowed downstream, and the chocolate confectionery is covered with glassine paper at a predetermined position.

JP 2013-18521 A

However, in the case of such a prior art, since the inner lid part is made of glassine paper and is soft and light, the inner box may be damaged for some reason while the chocolate confectionery is flowing through the production line toward the filling position. It is conceivable that it will return upward (cover). If such a state is caused, it is conceivable that the chocolate confectionery will be filled on the inner lid portion in the chocolate confectionery filling process. If the product flows downstream in the production line in such a state, there is a risk that the product will be packaged with the chocolate confectionery remaining on the inner lid portion.
In addition, since the inner lid is made of glassine paper and is soft and light, it is conceivable that the glassine paper might get caught and bent during the process of storing the inner box inside the outer box. There is also the risk of it being lost.

The present invention has been made to solve this problem, and its object is to provide a packaging container having an improved inner lid portion, improved workability, and a new structure that reduces the occurrence of defective products. to do.

In order to achieve these objects, the present invention provides an outer box having at least one open drawer opening, and an inner box main body which is accommodated in the outer box and can be slid in and out through the drawer opening. and a synthetic resin inner member housed in the inner box main body,
The inner member comprises a tray portion having a wall portion surrounding the periphery and having an open upper surface to accommodate a large number of granular chocolate confections , and a flexible thin plate that can be rolled up. and at least an inner lid covering the open upper surface of the
The inner lid portion is formed integrally with the tray portion via a bent portion at the rear edge of the tray portion in the direction in which the inner box is drawn out, and the inner box main body is connected to the outer box via the drawer opening. A packaging container capable of covering the open upper surface of the tray portion with the inner lid portion when accommodated in the container,
The bent portion is formed integrally between the edge of the rear wall portion of the tray portion and the inner lid portion in a substantially semicircular long groove shape in a cross-sectional view,
The bent portion expands the inner lid portion in a direction away from the open upper surface of the tray portion by its own elasticity when in a no-load state, and at least a part of the inner member extends from the bent portion side to the inner lid portion. When housed in the outer box, the inner lid portion is configured to cover the open upper surface of the tray portion against the elasticity of the bent portion,
The inner cover portion has first projecting pieces for preventing slippage on the left and right side edges in the drawing direction, and a second projecting piece is formed at the tip on the front side in the drawing direction, 0023, FIG. 2, FIG.
The tray portion has a first protrusion that can accommodate the first projecting piece when the inner lid portion covers the open upper surface of the tray portion on the upper end surface of the side wall portion positioned in the direction orthogonal to the pull-out direction. is formed , and the upper surface of the front wall portion on the front side in the pull-out direction is formed with a second recess that can accommodate the second projecting piece for the knob portion,
The first protruding piece is formed in a trapezoidal plate shape protruding in the horizontal direction,
When the first concave portion accommodates the first projecting piece between a first convex portion and a second convex portion formed on the upper end face of the side wall portion of the tray portion, The first protruding piece is formed so as to form a gap between the end of the first protruding portion and the end of the second protruding portion and the front and rear ends of the first protruding piece, respectively. formed wider than
The end portion of the first convex portion and the end portion of the second convex portion are each formed into a tapered surface that slopes downward toward the first concave portion. It is a container for

According to the present invention, it is possible to provide a packaging container having a new structure that improves the inner lid portion, improves workability, and reduces the occurrence of defective products.

FIG. 2 is a schematic cross-sectional view of the packaging container of the present embodiment, showing a state in which the inner member accommodates the contents, and after the contents are accommodated in the inner box, the contents are accommodated in the outer box. FIG. 4 is a plan view of the inner member that constitutes the packaging container of the present embodiment, showing a state in which the inner lid is open. FIG. 3 is a cross-sectional view taken along line III-III of FIG. 2; FIG. 4 is a plan view of the inner member that constitutes the packaging container of the present embodiment, showing a state in which the inner lid portion is closed; FIG. 5 is a cross-sectional view taken along line VV of FIG. 4; FIG. 5 is a sectional view taken along the line VI-VI of FIG. 4; FIG. 5 is a cross-sectional view taken along line VII-VII of FIG. 4; FIG. 2 is a schematic cross-sectional view of the packaging container of the present embodiment containing an inclusion, showing a state in which the inner box is housed in the outer box, and a state in which the inner box is pulled out and the inner lid portion is rolled up.

A packaging container according to an embodiment of the present invention will be described below with reference to the accompanying drawings. In this embodiment, a packaging container for food containing granular chocolate confectionery such as almond chocolate is assumed.
It should be noted that this embodiment is merely one embodiment of the present invention, and is not to be construed as being limited to this, and design changes are possible within the scope of the present invention.

The packaging container 1 of this embodiment is composed of an outer box 3 made of paper and an inner box 5 housed in the outer box 3 .
Although not shown, after the chocolate confectionery (inclusion) 29 is enclosed (filled), the entire outer box 3 is wrapped with an exterior film (not shown).

The outer box 3 is formed in a rectangular tubular shape in a plan view with both end faces opened.
In this embodiment, the left and right end faces are open, and one of the open end faces is used as the drawer port 3a. Further, in order to make it easier to see that the drawer opening 3a side is present, a predetermined notch area 3b is provided at the end portion of the side surface of the outer casing 3 on the drawer opening 3a side (see FIG. 1).
This notch area 3b not only indicates that it is on the drawer port 3a side, but also has a structure in which a part of the inner box 5 is exposed from the notch area 3b. By holding and pulling out the inner box 5 exposed from the cutout area 3b, the drawing operation (sliding operation) is facilitated.
Since it suffices to have at least one open drawer opening, either one of the left and right end faces may be closed without being opened.
The outer casing 3 is not construed as being limited to this embodiment, and can be appropriately modified in design within the scope of the present invention.

The inner box 5 is housed inside the outer box 3 and has a structure that can be slid in and out from the drawer opening 3a. An inner member 7 made of synthetic resin and housed in the main body 6 is included.
The inner box main body 6 has a rectangular shape in plan view with an open upper surface, and is formed with a recessed accommodation space having a height (depth) that allows the inner member 7 to be accommodated therein.
The length L1 of the inner box main body 6 is set to be substantially the same as the length L2 of the outer box 3, and the width and height H1 are set so as to be in sliding contact with the inner surface of the outer box 3 respectively.
In each figure, S1 indicates the drawing direction (sliding direction) of the inner box 5 (or the tray portion 9), and X1 indicates the direction perpendicular to the drawing direction of the inner box 5. As shown in FIG.

The inner member 7 is composed of a tray portion 9 made of synthetic resin and an inner lid portion 19 made of synthetic resin.

The tray portion 9 is surrounded by a front wall portion 9a, a rear wall portion 9b, a left side wall portion 9c, and a right side wall portion 9d. It is formed in a rectangular shape in plan view with a portion (space) 9e.
Further, in this embodiment, the inner bottom surface of the inner packet portion 9e of the tray portion 9 is formed with an uneven portion 9f.
The concave-convex portion 9f serves as a cushion to protect the contained chocolate confectionery 29 from impact, and also reduces the contact area of the chocolate confectionery 29 to prevent the chocolate confectionery 29 from sticking to the inner bottom surface. have a role. In the present embodiment, the direction X1 perpendicular to the drawing direction S1 of the inner box 5, that is, the concave portion 9g and the convex portion formed so as to span between the side wall portions (side surfaces) 9c and 9d of the tray portion 9 are arranged. The portions 9h are alternately arranged side by side. The uneven portion 9f does not have a configuration in which the concave portion 9g and the convex portion 9h are alternately arranged as in the present embodiment. may be formed in a large number, and the design may be changed within the scope of the present invention.
The length L3 of the tray portion 9 is set shorter than the length L1 of the inner box main body 6, the width is set narrower than the width of the inner box main body 6, and the height H3 is set equal to the height H1 of the inner box main body 6. It is set substantially the same or slightly lower and is installed inside the inner box 5 .

Upper end surfaces 9c′ and 9d′ of side walls (side surfaces) 9c and 9d of the tray portion 9 are provided with first concave portions (concave portions) having a predetermined length and a predetermined depth that are continuous in a predetermined range in the drawing direction S1 of the inner box 5. grooves) 11, 11 are formed.
The first concave portions (groove portions) 11, 11 can accommodate first projecting pieces 23, 23 provided on the inner lid portion 19, which will be described later, when the inner lid portion covers the open upper surface of the tray portion 9. formed.

The first concave portion 11 is formed between a first ridge portion 13 and a second ridge portion 15 formed on the upper end surfaces 9c' and 9d' of the side wall portions (side surfaces) 9c and 9d. . The second ridge portion 15 in the present embodiment extends over the upper end surfaces 9c′ and 9d′ of the side wall portions 9c and 9d and the upper end surface 9a′ of the front wall portion 9a in a generally L-shaped configuration in plan view. formed.

A second concave portion (groove portion) 17 having a predetermined length and a predetermined depth is formed between the respective ends of the second ridge portion 15 positioned on the upper end surface 9a′ of the front wall portion 9a. .
The second concave portion (groove portion) 17 is formed so as to accommodate a second protruding piece 25 provided on the inner lid portion 19, which will be described later, when the inner lid portion 19 covers the open top surface of the tray portion 9. there is

The respective ends of the first ridge 13 and the second ridge 15 are chamfered and formed into tapered surfaces that slope downward toward the first recess 11 and the second recess 17. there is

The inner lid portion 19 includes a main body 21 formed in a thin plate-like size to cover the open upper surface of the tray portion 9, and first projecting pieces (projecting pieces) formed on left and right side edges 21a, 21a of the main body 21. 23 , 23 , and a second projecting piece (projecting piece) 25 formed on the front edge 21 b of the main body 21 . It is molded integrally with the portion 9 .

The main body 21 is formed in such a size that it can be accommodated in the internal package portion (space) 9e of the tray portion 9 when the open upper surface of the tray portion 9 is covered. In this embodiment, the size is such that a gap is formed between the front wall portion 9a and the left and right side wall portions 9c and 9d (see FIGS. 4 and 7).
A large number of protrusions 21c are formed on the inner surface side. The projections 21c are long projections extending between the left and right side edges 21a, 21a of the main body 21 and protruding in a semicircular shape in cross section. Many are arranged side by side. In addition, in the present embodiment, recesses 21d are provided on the opposite side of the projections 21c, that is, on the outer surface side of the main body 21, which are formed when the projections are formed.

The first protruding piece 23 has a predetermined width from the side edge 21a of the main body 21 so that it can be accommodated in the first concave portion 11 provided in the tray portion 9 when the inner lid portion 19 covers the open upper surface of the tray portion 9. is projected horizontally. In this embodiment, the side edge 21a is formed in a trapezoidal plate-like shape with tapered surfaces 23a protruding horizontally from the side edge 21a, leaving predetermined regions on both sides thereof.
The second protruding piece 25 is formed in a trapezoidal plate shape, protruding horizontally from the front edge 21b with a tapered surface 25a, leaving predetermined regions on both sides of the front edge 21b.
In the region of the first projecting piece 23 and the second projecting piece 25, the convex portion 21c formed on the inner surface side of the main body 21 is not formed.

The bent portion 27 is formed integrally between the edge of the rear wall portion 9b of the tray portion 9 and the inner lid portion 19 in a substantially semicircular long groove shape when viewed in cross section. When closed so as to cover the upper portion of the portion 9, an elliptical long groove is formed in a cross-sectional view (see FIG. 5).
Therefore, the bent portion 27 functions to unfold the inner lid portion 19 in a direction away from the open upper surface of the tray portion 9, ie, outward, by its own elasticity when it is in an unloaded state (see FIG. 3). ). The shape of the bent portion 27 is not construed as being limited to this embodiment, and can be appropriately modified within the scope of the present invention.

According to the packaging container 1 of this embodiment, the following effects are exhibited.

The manufacturing process from filling the packaging container 1 of the present embodiment with the chocolate confectionery 29 to wrapping it with the exterior film will be described. At this time, due to the elasticity of the bent portion 27, the inner lid portion 19 of the inner member 7 is laid out on the line in a direction away from the open upper surface of the tray portion 9, i.e., outward. It flows sequentially.
Then, when it reaches the predetermined position, the inner package portion 9e of the tray portion 9 of the inner member 7 is filled with a predetermined amount of chocolate confectionery 29 from above. At this time, the inner lid portion 19 is always separated from the open upper surface of the tray portion 9 due to the elasticity of the bent portion 27 and unfolded outward, so that it does not become an obstacle when the chocolate confectionery 29 is filled. Nor.
The inner member 7 filled with the chocolate confectionery 29 further flows downstream in the production line, and the tray portion 9 is accommodated in the inner box main body 6 .
After that, it flows further downstream in the production line and is accommodated in the outer box 3 . At this time, when it is housed in the outer case 3 from the bent portion 27 side, the inner lid portion 19 covers the chocolate confectionery 29 against the elasticity of the bent portion 27 . After that, the entire outer box 3 is wrapped with an exterior film.
Further, when the inner box 5 is accommodated in the outer box 3 on the production line, the left and right first projecting pieces 23, 23 projecting from the side edges 21a, 21a of the inner lid portion 19 are attached to the tray portion 9, respectively. Since it is housed by being guided by the first recesses 11, 11 on the upper end surfaces 9c', 9d' of the side walls 9c, 9d, the inner lid part 19 is displaced when the inner box 5 is housed in the outer box 3. Not even.
The above description of the production line is one embodiment, and for example, the inner member 7 may be accommodated in the inner box main body 6 before the step of filling the chocolate confectionery 29. Design changes are possible within the scope of the present invention.

To eat the enclosed chocolate confectionery, the inner box 5 can be pulled out from the outer box 3, and the second protruding piece 25 of the inner lid portion 19 can be held and rolled up from the tip side. Since the projecting piece 25 is accommodated in the second recess 15 of the tray portion 9, the second projecting piece 25 is easy to pick and handle.

In the present embodiment, the inner box body 6 made of paper and the inner member 7 made of synthetic resin accommodated in the inner box body 6 constitute the inner box 5 . can be omitted and the inner box 5 can be constituted only by the inner member 7 made of synthetic resin, which is within the scope of the present invention.

INDUSTRIAL APPLICABILITY The present invention can be used for packaging containers for foods other than chocolate confectionery, and can also be used for packaging containers for foods other than foods.

1 packaging container 3 outer box 3a outlet 5 inner box 7 inner member 9 tray portion 13 recess (first recess)
15 recess (second recess)
19 Inner lid portion 23 Protruding piece (first protruding piece)
25 projecting piece (second projecting piece)
27 bending part

Claims (1)

An outer box having at least one open drawer opening, an inner box main body which is housed in the outer box and can be put in and taken out by sliding from the drawer opening, and a synthetic resin made which is accommodated in the inner box main body and an inner member of
The inner member comprises a tray portion having a wall portion surrounding the periphery and having an open upper surface to accommodate a large number of granular chocolate confections , and a flexible thin plate that can be rolled up. and at least an inner lid covering the open upper surface of the
The inner lid portion is formed integrally with the tray portion via a bent portion at the rear edge of the tray portion in the direction in which the inner box is drawn out, and the inner box main body is connected to the outer box via the drawer opening. A packaging container capable of covering the open upper surface of the tray portion with the inner lid portion when accommodated in the container,
The bent portion is formed integrally between the edge of the rear wall portion of the tray portion and the inner lid portion in a substantially semicircular long groove shape in a cross-sectional view,
The bent portion expands the inner lid portion in a direction away from the open upper surface of the tray portion by its own elasticity when in a no-load state, and at least a part of the inner member extends from the bent portion side to the inner lid portion. When housed in the outer box, the inner lid portion is configured to cover the open upper surface of the tray portion against the elasticity of the bent portion,
The inner cover portion has first projecting pieces for preventing slippage on the left and right side edges in the drawing direction, and a second projecting piece is formed at the tip on the front side in the drawing direction,
The tray portion has a first protrusion that can accommodate the first projecting piece when the inner lid portion covers the open upper surface of the tray portion on the upper end surface of the side wall portion positioned in the direction orthogonal to the pull-out direction. is formed , and the upper surface of the front wall portion on the front side in the pull-out direction is formed with a second recess that can accommodate the second projecting piece for the knob portion,
The first protruding piece is formed in a trapezoidal plate shape protruding in the horizontal direction,
When the first concave portion accommodates the first projecting piece between a first convex portion and a second convex portion formed on the upper end face of the side wall portion of the tray portion, The first protruding piece is formed so as to form a gap between the end of the first protruding portion and the end of the second protruding portion and the front and rear ends of the first protruding piece, respectively. formed wider than
The end portion of the first convex portion and the end portion of the second convex portion are each formed into a tapered surface that slopes downward toward the first concave portion. container.

Images