WO2018174165A1

WO2018174165A1 - Plastic vessel

Info

Publication number: WO2018174165A1
Application number: PCT/JP2018/011433
Authority: WO
Inventors: 野口　裕雄; 浩幸森田; 正美滝; 啓太仲宗根; 美津子小垣; 普夫藤原
Original assignee: 凸版印刷株式会社; 株式会社ロッテ
Priority date: 2017-03-23
Filing date: 2018-03-22
Publication date: 2018-09-27
Also published as: JPWO2018174165A1; JP7065826B2; CN110446663B; KR20190133149A; CN110446663A

Abstract

A plastic vessel (1) comprising an upper vessel (10) and a lower vessel (20). The upper vessel (10) has a substantially rectangular upper wall (11) and a pair of upper short-side outer walls (12) that extend downward in a substantially vertical direction from near the two ends of the upper wall (11). The lower vessel (20) has a substantially rectangular bottom wall (21) and a pair of lower short-side outer walls (22) that extend upward in a substantially vertical direction from near the two ends of the bottom wall (21). The upper short-side outer walls (12) are provided with wedge-shaped protrusions (16) positioned in locations that correspond to the four corners of the substantially rectangular shape, and the lower short-side outer walls (22) are provided with recesses (26) which are positioned in locations that correspond to the four corners of the substantially rectangular shape and into which the wedge-shaped protrusions (16) fit. The wedge-shaped protrusions (16) and the recesses (26) are fitted together, whereby the upper vessel (10) and the lower vessel (20) are irremovably attached in the plastic vessel (1).

Description

Plastic container

The present invention relates to a plastic container.

Patent Document 1 discloses an example of a plastic container including an upper container and a lower container.

Japanese Patent No. 2013-079090

In a plastic container, the upper container and the lower container may be simply fitted on the side surface to form a container, and the upper container and the lower container may be disengaged due to dropping of the container or the like. is there. In order to prevent the container from being disengaged, a plurality of pins projecting toward the other container are provided inside one of the upper container and the lower container, and a plurality of pins that can be inserted into the other container are provided. It has been practiced to provide a cylindrical portion and to make the fitting between the upper container and the lower container stronger by fitting them together inside the container. However, when these pins and cylinders are provided on the inner surface (back surface) of the upper and lower containers by injection molding, the shape of the outer surface (front surface) of the container due to sink marks during injection molding. May disturb the aesthetics. In particular, now that the appearance (aesthetic appearance) of the packaging container is becoming strict, the requirement is becoming strict, and further improvement is desired.

An object of the present invention is to provide a plastic container that strengthens the fitting between the upper container and the lower container and does not impair the aesthetics of the container.

The present invention relates to a plastic container as one aspect thereof. The plastic container includes an upper container and a lower container. The upper container has a substantially rectangular upper wall and a pair of upper short side outer walls extending in the substantially vertical direction from the vicinity of both ends of the upper wall. The lower container has a substantially rectangular bottom wall and a pair of lower short side outer walls that extend in the substantially vertical direction from the vicinity of both ends of the bottom wall. One outer wall of the upper short side outer wall and the lower short side outer wall is provided with wedge-shaped projections located at positions corresponding to the four corners of a substantially rectangular shape and projecting toward the other outer wall, and the upper short side outer wall and the lower short side outer wall The other outer wall is provided with a recess which is located at a position corresponding to the four corners of a substantially rectangular shape and into which a wedge-shaped protrusion is fitted. By fitting the wedge-shaped projection and the recess, the upper container and the lower container are attached so as not to be extracted.

In this plastic container, one outer wall is provided with a wedge-shaped projection located at a location corresponding to the substantially rectangular four corners, and the other outer wall is located at a location corresponding to the substantially rectangular four corners and fitted with a wedge-shaped projection. A recess is provided. Then, the upper container and the lower container are attached so that they cannot be pulled out by fitting the wedge-shaped projections and the recesses at the four corners. For this reason, it is possible to strengthen fitting with an upper container and a lower container. In addition, since the wedge-shaped protrusion and the concave portion are provided on the outer wall, it is not necessary to provide a fitting portion on the upper wall or the like, and a configuration that does not impair the aesthetic appearance of the container, particularly the container surface.

In the above-mentioned plastic container, it is preferable that a wedge-shaped projection is provided on the outer surface of the upper short side outer wall and a recess is provided on the inner surface of the lower short side outer wall. In this case, it is possible to provide a plastic container that strengthens the fitting between the upper container and the lower container and does not impair the appearance of the container.

In the above plastic container, it is preferable that the wedge-shaped protrusion is provided at the lower end of the upper short side outer wall, and the concave portion is provided at the lower end of the lower short side outer wall. In this case, it is possible to provide a plastic container that strengthens the fitting between the upper container and the lower container and that does not impair the appearance of the container.

In the above plastic container, it is preferable that a guide recess for guiding the wedge-shaped projection into the recess is provided at the upper end of the lower short side outer wall. In this case, it is possible to provide a plastic container that strengthens the fitting between the upper container and the lower container and does not impair the appearance of the container. Moreover, since the guide recess is provided, the work when the upper container is fitted to the lower container can be performed more reliably.

In the above plastic container, it is preferable that a laterally extending groove is provided on the outer surface of the upper short side outer wall, and a linear protrusion extending in the lateral direction is provided on the inner surface of the lower short side outer wall. It is preferable that the upper container and the lower container can be temporarily fixed when the linear protrusion is engaged with the groove before the fitting. In this case, it is possible to provide a plastic container that strengthens the fitting between the upper container and the lower container and does not impair the appearance of the container. In addition, the upper container and the lower container can be temporarily fixed when the linear protrusion is engaged with the groove part before the fitting by the groove part of the upper short side outer wall and the linear protrusion of the lower short side outer wall. It is possible to perform the work when fitting the upper container to the lower container more reliably.

In the above plastic container, the lower container preferably has a pair of lower short side inner walls extending in a substantially vertical direction from a position inside the lower short side outer wall of the bottom wall, and the lower short side inner wall is a lower short side outer wall. Its height is lower than. The upper short side outer wall is located between the lower short side outer wall and the lower short side inner wall, and the wedge-shaped protrusion and the concave portion are fitted, so that the upper container and the lower container are attached so as not to be extracted. preferable. In this case, it is possible to provide a plastic container that strengthens the fitting between the upper container and the lower container and does not impair the appearance of the container. Moreover, since the inner wall is also used, the fitting between the upper container and the lower container can be further strengthened. The lower container may have a reinforcing rib located between the lower short side outer wall and the lower short side inner wall. In this case, each outer wall can be maintained in an upright state by suppressing the lower short side outer wall or the lower short side inner wall from bending inward due to shrinkage during molding. Thereby, the malfunction at the time of attaching an upper container to a lower container by positioning an upper short side outer wall between a lower short side outer wall and a lower short side inner wall can be prevented.

In the above plastic container, the upper container includes a pair of upper long side outer walls extending in a substantially vertical direction from both sides of the upper wall, and a pair extending in a substantially vertical direction from a position inside the upper long side outer wall of the upper wall. It is preferable to have an inner wall of the upper long side. The lower container includes a pair of lower long side outer walls extending in a substantially vertical direction from both sides of the bottom wall, and a pair of lower long side inner walls extending in a substantially vertical direction from a position inside the lower long side outer wall of the bottom wall. It is preferable to have. The upper long side outer wall and the lower long side outer wall are provided with linear protrusions that protrude toward each other, the lower long side outer wall is located between the upper long side outer wall and the upper long side inner wall, and It is preferable that the upper container and the lower container are attached so that they cannot be pulled out by fitting the linear protrusions on the outer wall of the part long side with the linear protrusions on the outer wall of the lower long side. In this case, since not only the short side inner wall but also the long side inner wall and the long side outer wall are used for fitting, the fitting between the upper container and the lower container can be further strengthened. Moreover, the plastic container which does not impair the external appearance of a container can be provided.

In the above plastic container, it is preferable that the bottom wall is provided with an outlet structure including an outlet for taking out the stored items, and a lid that covers the outlet and can be opened and closed. The lid body has a fixing portion for fixing the lid body to the outlet structure on the bottom wall, a pressing portion for pressing operation, and a lid portion that covers the outlet port. A fixed part is provided in a connected manner via a hinge, and a lid is provided on the other side of the pressing part via a second hinge. When the pressing part is pushed down, the lid closes around the second hinge. It is preferably pivotable from the position to the open position. With such a configuration, stored items stored in the plastic container, for example, food such as gum or candy can be easily taken out. A protrusion or the like is provided on the back side of the pressing portion of the lid, and a hole is provided on the inner surface of the lower container so that the protrusion can be engaged. When the lid is changed from the closed position to the open position, the protrusion The lid may be maintained in the open position. In this case, the stored item stored in the plastic container can be taken out more easily.

The present invention also relates to a plastic container as another aspect. The plastic container includes an upper container and a lower container. The upper container has a substantially rectangular upper wall and a pair of upper short side outer walls extending in the substantially vertical direction from the vicinity of both ends of the upper wall. The lower container has a substantially rectangular bottom wall and a pair of lower short side outer walls that extend in the substantially vertical direction from the vicinity of both ends of the bottom wall. The bottom wall is provided with an outlet structure including an outlet for taking out stored items, and a lid that covers the outlet and can be opened and closed. The lid includes a fixing portion for fixing the lid to the outlet structure on the bottom wall, a pressing portion for pressing operation, and a lid that covers the outlet. One of the pressing parts is provided with a fixed part connected via a first hinge, and the other part of the pressing part is provided with a lid part via a second hinge. In this plastic container, the lid can be rotated from the closed position to the open position around the second hinge when the pressing portion is pressed down.

In this plastic container, an outlet structure and a lid are provided on the bottom wall, and the lid includes a fixing portion for fixing to the bottom wall, a pressing portion for pressing operation, and a lid portion that covers the outlet. And have. One of the pressing parts is provided with a fixing part connected via a first hinge, and the other of the pressing parts is provided with a lid part via a second hinge. When the pressing part is pushed down, The lid rotates from the closed position to the open position with the second hinge as an axis. Thereby, the food stored in the plastic container, for example, food such as gum or candy can be easily taken out. Further, since the outlet is provided on the bottom wall side, it is possible to freely select the appearance design on the surface side of the plastic container, and it is possible to obtain a beautiful appearance shape.

In the above plastic container, it is preferable that an engagement protrusion is provided on the inner surface side of the pressing portion, and an engagement hole that engages with the engagement protrusion is provided in the outlet structure. It is preferable that when the lid body is in the open state, the engagement protrusion engages with the engagement hole to fix the operation of the lid portion in the open position. As a result, it becomes even easier to take out the contents stored in the container.

In the above plastic container, the outlet structure is preferably provided with a rib for defining the opening angle of the lid. Thereby, since a movement of a cover part can be prevented when a cover body is an open state, taking out of the storage thing of a container becomes still easier.

In the above plastic container, it is preferable that the outlet structure is provided with a rib that suppresses the floating of the lid portion when the lid portion is in the closed position. Thereby, since a movement of a cover part can be prevented when a cover body is a closed state, it is suppressed that a stored item comes out of a container carelessly. Further, the outlet structure may be provided with an extension wall portion configured to prevent the stored contents of the plastic container from entering a cavity provided on the inner side of the lower container and on the side opposite to the outlet. Good. In this case, the stored item stored in the plastic container can be prevented from being caught in a place other than the outlet of the outlet structure. Moreover, when a plastic container falls, it can suppress that a stored item is missing or cracked by the impact.

The present invention can provide a plastic container in which the fitting between the upper container and the lower container is strong and the appearance of the container is not impaired.

FIG. 1 is a perspective view showing an entire plastic container according to an embodiment of the present invention. FIG. 2 is a plan view showing a bottom wall of the plastic container shown in FIG. FIG. 3A is an exploded perspective view showing a part of the plastic container shown in FIG. 1 in an exploded state (an end portion of the plastic container). FIG. 3B is a cross-sectional view of the outer wall of the upper short side along the line IIIb-IIIb in FIG. FIG. 3C is a perspective view of the lower container shown in FIG. 3A viewed from different directions. FIG. 3D is a sectional view of the outer wall of the lower long side along the line IIId-IIId in FIG. FIG. 4A is a perspective view of the outlet structure on the bottom wall side of the plastic container shown in FIG. 1 as viewed from below, and FIG. 4B is a plan view (bottom view) thereof. FIG. 5 is a cross-sectional view showing an open state of the lid of the plastic container shown in FIG. FIG. 6 is a perspective view showing an upper container of a plastic container according to a modification. FIG. 7 is a perspective view showing a lower container of a plastic container according to a modification. (A) and (b) of Drawing 8 is another perspective view showing the lower container of the plastic container concerning a modification. FIG. 9 is a plan view of a lower container of a plastic container according to another modification as viewed from above. FIG. 10 is a perspective view of an upper container attached to the lower container shown in FIG.

Hereinafter, the plastic container according to the present invention will be described in detail with reference to the drawings. In the description, the same reference numerals may be used for the same elements or elements having the same function, and redundant description is omitted.

FIG. 1 is a perspective view showing an entire plastic container according to an embodiment of the present invention. FIG. 2 is a plan view showing a bottom wall of the plastic container shown in FIG. As shown in FIGS. 1 and 2, the plastic container 1 includes an upper container 10 and a lower container 20, and can store a predetermined storage item (for example, food such as gum or candy) therein. A container having a space. An outlet structure 30 (see FIG. 4) is provided on the back surface side (bottom wall side) of the lower container 20, and the outlet body 31 is attached so as to cover the lid body 40. The upper container 10 and the lower container 20 can be formed in a predetermined shape, for example, by injection molding of ABS resin. The lid 40 can be formed from, for example, polypropylene (PP) resin.

The upper container 10 includes a substantially rectangular upper wall 11, a pair of upper short-side outer walls 12 (see FIG. 3) extending from the vicinity of both ends 11 a of the upper wall 11 (slightly inside positions) downward in a substantially vertical direction, and an upper wall A pair of upper long-side outer walls 13 extending substantially vertically downward from both sides 11b and a pair of upper long-side inner walls extending substantially vertically downward from a location inside the upper long-side outer wall 13 of the upper wall 11 respectively. 14 (see FIG. 6). The upper long side outer wall 13 is higher in height than the upper long side inner wall 14, and is separated from the upper long side inner wall 14 by a predetermined distance. The upper long side outer wall 13 and the upper long side inner wall 14 are formed to extend in a substantially parallel direction. In the upper container 10, the upper wall 11, the upper short-side outer wall 12, and the upper long-side inner wall 14 define a storage space therein. Further, on the inner surface of the upper wall 11 of the upper container 10, no other projections or the like are formed except for the gate part of injection molding (see FIG. 6), and the surface is formed to be flat. . In the example shown in the figure, the ridges on the outer surfaces of the upper wall 11 and the upper long side outer wall 13 are R-shaped, but may be right-angled. Further, a decorative pattern may be provided on the outer surface (upper wall 11) of the upper container 10, for example, a metal-like pattern may be formed by depositing aluminum on a PET film. Even in this case, the inner surface of the upper wall 11 of the upper container 10 is not particularly provided with a protrusion, so that the surface pattern can be made clean.

The lower container 20 includes a substantially rectangular bottom wall 21, a pair of lower short outer walls 22 extending substantially vertically upward from the vicinity of both ends 21 a of the bottom wall 21, and an inner side of the lower short outer wall 22 of the bottom wall 21. A pair of lower short side inner walls 23 (see FIG. 3C) extending upward in the vertical direction from the respective locations, and a pair of lower long side outer walls 24 extending in the vertical direction upward from the sides 21b of the bottom wall 21 (see FIG. 3C). 3 (a) and 3 (c)) and a pair of lower long side inner walls 25 extending substantially vertically upward from a position inside the lower long side outer wall 24 of the bottom wall 21 (FIG. 3 (a)). And (c)). The lower short side outer wall 22 is higher in height than the lower short side inner wall 23, and is separated from the lower short side inner wall 23 by a predetermined distance. The lower long side outer wall 24 is lower in height than the lower long side inner wall 25 and is separated from the lower long side inner wall 25 by a predetermined distance.

When the upper container 10 and the lower container 20 are fitted as described later, the upper short side outer wall 12 is disposed between the lower short side outer wall 22 and the lower short side inner wall 23. Further, the upper long side inner wall 14 is disposed between the lower long side outer wall 24 and the lower long side inner wall 25.

Next, the structure for fitting the upper container 10 and the lower container 20 will be described in more detail with reference to (a) to (d) of FIG. FIG. 3A is an exploded perspective view showing a part (left end portion) of the plastic container shown in FIG. 1 in an exploded state. FIG. 3B is a partial cross-sectional view taken along line IIIb-IIIb in FIG. FIG. 3C is a partial perspective view of the lower container shown in FIG. 3A viewed from different directions. FIG. 3D is a partial sectional view taken along line IIId-IIId in FIG.

As shown in FIG. 3A, the upper container 10 is provided with two wedge-shaped projections 16 below both ends of the outer surface of the upper short side outer wall 12. Four wedge-shaped projections 16 are provided. The wedge-shaped protrusion 16 has, for example, a flat upper surface (see FIGS. 3A and 3B). In FIG. 3A, only one upper short side outer wall 12 is shown, but the other upper short side outer wall has similar wedge-shaped projections and corresponds to four rectangular corners of the upper wall 11. These wedge-shaped projections 16 are provided. In addition, two linear protrusions 17 are provided on the outer surface of the upper short side outer wall 12 of the upper container 10 above the wedge-shaped protrusions 16 (see FIGS. 3A and 3B). FIG. 3B shows a cross section of the upper short side outer wall 12, the wedge-shaped protrusion 16, and the linear protrusion 17. The linear protrusions 17 extend in the direction in which the upper long side outer wall 13 faces.

On the other hand, the lower container 20 is provided with two recesses 26 (holes) for fitting with the wedge-shaped projections 16 of the upper container 10 below both ends of the inner surface of the lower short side outer wall 22. A total of four recesses 26 are provided in the lower short side outer wall 22. 3 (a) and 3 (c), only one lower short side outer wall 22 is shown, but the other lower short side outer wall also has a similar recess, and is formed at four corners of a substantially rectangular shape of the bottom wall 21. These concave portions 26 are provided at corresponding positions (see FIG. 3C). Further, two linear protrusions 27 are provided on the inner surface of the lower short side outer wall 22 of the lower container 20 above the recess 26. The linear protrusion 27 extends in a direction opposite to the lower long side outer wall 24. FIG. 3C is a partial perspective view of the lower short side outer wall 22 viewed from the inside.

In the plastic container 1 having such a fitting structure, when the upper container 10 and the lower container 20 are attached, the upper short side outer wall 12 of the upper container 10 is connected to the lower short side outer wall 22 and the lower short side of the lower container 20. The wedge-shaped protrusion 16 of the upper short-side outer wall 12 is fitted in the recess 26 of the lower short-side outer wall 22 and the linear protrusion 17 of the upper short-side outer wall 12 is positioned on the lower short-side outer wall 22. It fits with the linear protrusion 27 on the inner surface. At this time, the linear protrusion 27 is positioned above the linear protrusion 17 so as to be in contact therewith, and the lower short side outer wall 22 presses the upper short side outer wall 12 downward. As a result, the four corners of the rectangular shape when viewed in plan are firmly fixed, and the fitting between the upper container 10 and the lower container 20 becomes strong, and the state becomes impossible to be extracted. At this time, since the lower short side inner wall 23 urges the upper short side outer wall 12 toward the lower short side outer wall 22, the above-described fitting is further strengthened. In addition, in the plastic container 1, the lower short side outer wall 22 of the lower container 20 is arrange | positioned outside by this fitting, and the lower short side outer wall 22 comprises the end surface of the plastic container 1. FIG.

Further, in the long side direction, the upper container 10 is provided with five linear protrusions 18 (see FIG. 6) in order below the inner surface of the upper long side outer wall 13, and the two upper long side outer walls 13 are in total. Ten linear protrusions 18 are provided. On the other hand, as shown in FIG. 3C, the lower container 20 is provided with five linear protrusions 28 in order at the substantially central portion of the outer surface of the lower long side outer wall 24 (FIG. 3C). (One of them is shown in the figure) The two lower long side outer walls 24 are provided with a total of ten linear protrusions 28.

In the plastic container 1 having such a fitting structure, the lower long side outer wall 24 is positioned between the upper long side outer wall 13 and the upper long side inner wall 14 when the upper container 10 and the lower container 20 are attached. At the same time, the linear protrusion 18 of the upper long side outer wall 13 and the linear protrusion 28 of the lower long side outer wall 24 are fitted. At this time, the linear protrusion 28 is positioned above the linear protrusion 18 so as to be in contact therewith, and the lower long side outer wall 24 presses the upper long side outer wall 13 downward. As described above, in addition to the fitting in the short side direction, the fitting in the long side direction allows the upper container 10 and the lower container 20 to be attached so as not to be extracted.

Next, with reference to FIGS. 4 and 5, a structure for taking out the stored items from the plastic container 1 will be described. 4A is a perspective view of the outlet structure 30 on the bottom wall 21 side of the plastic container 1 as viewed from below, and FIG. 4B is a plan view thereof as viewed from below. FIG. 5 is a cross-sectional view showing an open state of the lid 40 of the plastic container 1.

The plastic container 1 includes, in addition to the upper container 10 and the lower container 20, an outlet structure 30 including an outlet 31 for taking out stored items on the bottom wall 21, and a lid that covers the outlet 31 and can be opened and closed. 40 is provided. The outlet structure 30 includes an outlet 31 that is an opening, a rib 32, a fixing portion 33, an engagement hole 34, a space 35, and a rib 36.

The lid 40 has a horizontally long and substantially rectangular shape as a whole, and a fixing portion 41 for fixing the lid 40 to the outlet structure 30 of the bottom wall 21 via a fixing portion 33, and a pressing portion for pressing operation. 42 and a lid 43 covering the outlet 31 (see FIGS. 2 and 5). A fixed portion 41 is provided on one side of the pressing portion 42 via a first hinge 44, and a lid portion 43 is provided on the other side of the pressing portion 42 via a second hinge 45. FIG. As shown, the lid 43 rotates from the closed position to the open position about the second hinge 45 when the push-down portion 42 is pushed down to the inside of the container (downward in the drawing, in the space 35). . In addition, in FIG. 5, in order to demonstrate opening and closing of the outlet structure at the time of taking out a stored item from an outlet, the upper and lower sides are reversed with respect to FIG.

At this time, the engagement protrusion 46 provided on the inner surface side of the pressing portion 42 engages with the engagement hole 34 provided in the outlet structure 30, so that the lid 40 is in the open state (the state shown in FIG. 5). Configured to maintain. That is, the operation of the lid 43 in the open position is fixed. Further, the outlet structure 30 is provided with the rib 32 as described above, and the opening angle of the lid portion 43 is defined by the inclined rib 32. On the other hand, when the lid 40 is in the closed state, the lid 36 is prevented from being lifted by the ribs 36 provided near the outlet 31 of the outlet structure 30, and the stored items are not prepared. So that you don't get out.

As described above, in the plastic container 1 according to the present embodiment, the wedge-shaped protrusions 16 are provided on one outer wall at positions corresponding to the four corners of the substantially rectangular shape, and the other outer wall corresponds to the four corners of the substantially rectangular shape. A recess 26 is provided, which is located at a location and into which the wedge-shaped protrusion 16 is fitted. And the upper container 10 and the lower container 20 are attached so that extraction is impossible because the wedge-shaped protrusion 16 and the recessed part 26 fit in four corners. For this reason, it is possible to strengthen the fitting between the upper container 10 and the lower container 20. Further, since the wedge-shaped projection 16 and the recess 26 are provided on the outer wall, it is not necessary to provide a fitting portion on the upper wall or the like, so that the appearance of the container, particularly the appearance of the container surface, is not impaired. it can.

A wedge-shaped protrusion 16 is provided on the outer surface of the upper short side outer wall 12, and a recess 26 is provided on the inner surface of the lower short side outer wall 22. For this reason, the plastic container which does not impair the external appearance of a container while strengthening fitting with the upper container 10 and the lower container 20 can be provided.

The wedge-shaped projection 16 is provided at the lower end of the upper short side outer wall 12, and the concave portion 26 is provided at the lower end of the lower short side outer wall 22. For this reason, the plastic container which does not impair the external appearance of a container while strengthening fitting with the upper container 10 and the lower container 20 can be provided.

The lower container 20 has a pair of lower short side inner walls 23 that extend in a substantially vertical direction from locations inside the lower short side outer wall 22 of the bottom wall 21, and the lower short side inner wall 23 is more than the lower short side outer wall 22. The height of the upper container 10 and the lower container 20 is low because the upper short-side outer wall 12 is positioned between the lower short-side outer wall 22 and the lower short-side inner wall 23 and the wedge-shaped projection 16 and the recess 26 are fitted. Are attached so that they cannot be removed. In this case, it is possible to provide a plastic container that strengthens the fitting between the upper container 10 and the lower container 20 and does not impair the appearance of the container. Moreover, since the lower short side inner wall 23 is also used, the fitting between the upper container 10 and the lower container 20 can be further strengthened.

The upper container 10 includes a pair of upper long side outer walls 13 that extend in a substantially vertical direction from both sides of the upper wall, and a pair of upper long sides that extend in a substantially vertical direction from a portion inside the upper long side outer wall 13 of the upper wall 11. The lower container 20 includes a pair of lower long side outer walls 24 extending in the substantially vertical direction from the vicinity of both sides of the bottom wall 21, and a location inside the lower long side outer wall 24 of the bottom wall 21. And a pair of lower long side inner walls 25 each extending in a substantially vertical direction. The upper long side outer wall 13 and the lower long side outer wall 24 are respectively provided with

linear protrusions

18 and 28 protruding toward each other, and the lower long side outer wall 24 is connected to the upper long side outer wall 13 and the upper long side inner wall 14. And the linear protrusions 18 of the upper long side outer wall 13 and the linear protrusions 28 of the lower long side outer wall 24 are fitted together, so that the upper container 10 and the lower container 20 cannot be further extracted. It is attached. In this case, since not only the short side inner wall but also the long side inner wall and the long side outer wall are used for fitting, the fitting between the upper container 10 and the lower container 20 can be strengthened, and the appearance of the container It is possible to provide a plastic container that does not impair the aesthetics.

The bottom wall 21 is provided with an outlet structure 30 including an outlet 31 for taking out stored items, and a lid 40 that covers the outlet 31 and can be opened and closed. A fixing part 41 for fixing the lid 40 to the outlet structure 30, a pressing part 42 for pressing operation, and a lid part 43 covering the outlet 31. A fixed portion 41 is provided on one side of the pressing portion 42 via a first hinge 44, and a lid portion 43 is provided on the other side of the pressing portion 42 via a second hinge 45. When the pressing portion 42 is pushed down, the lid body 40 is rotatable from the closed position to the open position with the second hinge 45 as an axis. With such a configuration, stored items stored in the plastic container 1, for example, foods (stored items) such as gums or candies can be easily taken out. A protrusion or the like is provided on the back side of the pressing portion 42 of the lid 40 and an engagement hole 34 is provided in the lower container 20 to engage the protrusion. When the lid 40 is changed from the closed position to the open position, The protrusion may engage with the engagement hole 34 so that the open position of the lid 40 can be maintained. In this case, the stored item stored in the plastic container 1 can be taken out more easily.

Next, modified examples of the present invention will be described with reference to FIGS. FIG. 6 is a perspective view showing an upper container of a plastic container according to a modification. FIG. 7 is a perspective view showing a lower container of a plastic container according to a modification. (A) and (b) of Drawing 8 is another perspective view showing the lower container of the plastic container concerning a modification.

As shown in FIGS. 6 to 8, in the plastic container 1a according to the modified example, the engagement structure on the short side is slightly different from that of the plastic container 1, and other configurations are the same as those of the plastic container 1. The description is omitted. The plastic container 1a further includes a groove 18a and an inclined portion 19a extending in the lateral direction below the linear protrusion 17 on the outer surface of the upper short side outer wall 12. Since the plastic container 1a has such a groove 18a, when the upper container 10a and the lower container 20a are fitted, the linear protrusion 27 (see FIGS. 7 and 8) of the lower container 20a is inserted into the groove 18a. ) Once and the upper container 10a and the lower container 20a can be temporarily fixed. As described above, the upper container 10a and the lower container 20a can be temporarily fixed by the groove 18a of the upper short side outer wall 12 and the linear protrusion 27 of the lower short side outer wall 22 before the fitting. The upper container 10a can be fitted to the lower container 20a, and the operation can be performed more reliably. The inclined portion 19a is a surface that is inclined inwardly downward, and has a function of facilitating sliding when the upper container 10a is fitted to the lower container 20a.

In the plastic container 1a according to the modified example, as shown in FIGS. 7 and 8 (a) and 8 (b), guidance for guiding the wedge-shaped protrusions 16 to the concave portions 26 at both ends of the upper end of the lower short side outer wall 22 is performed. A recess 26a is provided. When fitting the upper container 10a and the lower container 20a, the wedge-shaped projection 16 is once positioned in the guide recess 26a, and after both containers are aligned, both can be fitted. The operation | work at the time of fitting the upper container 10a to the lower container 20a can be performed more reliably and correctly.

In this plastic container 1a, an extension wall portion 39 is provided to prevent the storage portion from entering the cavity on the side opposite to the outlet 31 of the outlet structure 30. Thereby, it can suppress that a stored item enters into this cavity, damages a plastic container, or the stored item itself fits in.

Moreover, the modified example of the plastic container may further have the configuration shown in FIGS. In the modification shown in FIGS. 9 and 10, a pair of reinforcing ribs 29 is further provided between the lower short side outer wall 22 and the lower short side inner wall 23 of the lower container 20b. By this reinforcing rib 29, it is possible to prevent the lower short side outer wall 22 or the lower short side inner wall 23 from being bent inward by contraction during the molding of the lower container 20b, and to maintain each outer wall in an upright state. . Thereby, the upper short side outer wall 12 can be located between the lower short side outer wall 22 and the lower short side inner wall 23, and the malfunction at the time of attaching the upper container 10b to the lower container 20b can be prevented. In this modification, in order to avoid interference with the reinforcing rib 29, a notch 19b may be provided in the upper short side outer wall 12 of the upper container 10b as shown in FIG. In this modified example, the extension wall portion 39 a of the outlet structure 30 extends to the lower long side inner wall 25. For this reason, it is possible to prevent the stored items from entering or being caught in the gap formed inside the container of the fixed portion 33. In addition, when the plastic container falls, it is possible to further prevent the stored item from being chipped or cracked due to the impact.

As mentioned above, although the plastic container which concerns on this embodiment has been demonstrated, the plastic container which concerns on this invention is not limited to the said embodiment, A various deformation | transformation is applicable. For example, in the above embodiment, the wedge-shaped protrusion 16 is provided on the

upper container

10, 10a, 10b side, and the recess 26 is provided on the

lower container

20, 20a, 20b side, but conversely the

lower container

20, 20a. , 20b may be provided with a wedge-shaped protrusion 16, and the

upper container

10, 10a, 10b may be provided with a recess 26 fitted therein.

The present invention can be applied to a plastic container that can store a storage item such as gum or candy.

DESCRIPTION OF

SYMBOLS

1,1a ... Plastic container, 10, 10a, 10b ... Upper container, 11 ... Upper wall, 11a ... Both ends, 11b ... Both sides, 12 ... Upper short side outer wall, 13 ... Upper long side outer wall, 14 ... Upper long side inner wall, 16 ... wedge-shaped projection, 17 ... linear projection, 18 ... linear projection, 20, 20a, 20b ... lower container, 21 ... bottom wall, 22 ... lower short side outer wall, 23 ... lower short side inner wall, 24 ... lower long side Outer wall, 25 ... Lower long side inner wall, 26 ... Recess, 27 ... Linear projection, 28 ... Linear projection, 29 ... Reinforcing rib, 30 ... Extraction structure, 31 ... Extraction port, 32 ... Rib, 33 ... Fixed part 34 ... engagement hole, 35 ... space, 36 ... rib, 39, 39a ... extension wall part, 40 ... lid body, 41 ... fixing part, 42 ... pressing part, 43 ... lid part, 44 ... first hinge, 45 ... second hinge, 46 ... engagement protrusion.

Claims

An upper container having a substantially rectangular upper wall and a pair of upper short-side outer walls extending in a substantially vertical direction from both ends of the upper wall;
A lower container having a substantially rectangular bottom wall and a pair of lower short side outer walls extending in a substantially vertical direction from both ends of the bottom wall;
One outer wall of the upper short side outer wall and the lower short side outer wall is provided with a wedge-shaped protrusion that is located at a location corresponding to the four corners of a substantially rectangular shape and protrudes toward the other outer wall, and the upper short side outer wall and the The other outer wall of the lower short side outer wall is provided with a recess that is located at a location corresponding to the four corners of a substantially rectangular shape and into which the wedge-shaped projection is fitted,
A plastic container in which the upper container and the lower container are attached so that they cannot be pulled out by fitting the wedge-shaped protrusion and the recess.
The wedge-shaped protrusion is provided on the outer surface of the upper short side outer wall, and the concave portion is provided on the inner surface of the lower short side outer wall.
The plastic container according to claim 1.
The wedge-shaped protrusion is provided at the lower end of the upper short side outer wall, and the concave portion is provided at the lower end of the lower short side outer wall.
The plastic container according to claim 2.
At the upper end of the lower short side outer wall, a guide recess for guiding the wedge-shaped projection to the recess is provided,
The plastic container according to claim 2 or 3.
A laterally extending groove is provided on the outer surface of the upper short-side outer wall, and a linear protrusion is provided on the inner surface of the lower short-side outer wall. When the linear protrusions are engaged, the upper container and the lower container can be temporarily fixed.
The plastic container according to any one of claims 2 to 4.
The lower container has a pair of lower short side inner walls extending in a substantially vertical direction from a position inside the lower short side outer wall of the bottom wall, respectively.
The lower short side inner wall is lower in height than the lower short side outer wall, the upper short side outer wall is located between the lower short side outer wall and the lower short side inner wall, and the wedge-shaped protrusion and the recess The upper container and the lower container are attached so that they cannot be pulled out by fitting,
The plastic container according to any one of claims 1 to 5.
The lower container has a reinforcing rib located between the lower short side outer wall and the lower short side inner wall.
The plastic container according to claim 6.
The upper container includes a pair of upper long side outer walls extending in a substantially vertical direction from both sides of the upper wall, and a pair of upper long sides extending in a substantially vertical direction from a portion inside the upper long side outer wall of the upper wall. With a section-long inner wall,
The lower container includes a pair of lower long side outer walls extending in a substantially vertical direction from both sides of the bottom wall, and a pair of lower sides extending in a substantially vertical direction from a portion inside the bottom long side outer wall of the bottom wall. With a section-long inner wall,
The upper long side outer wall and the lower long side outer wall are respectively provided with linear protrusions protruding toward each other, and the lower long side outer wall is located between the upper long side outer wall and the upper long side inner wall. The upper container and the lower container are attached so that they cannot be pulled out by being fitted with the linear protrusions of the upper long side outer wall and the linear protrusions of the lower long side outer wall.
The plastic container according to any one of claims 1 to 7.
The bottom wall is provided with an outlet structure including an outlet for taking out stored items, and a lid that covers the outlet and can be opened and closed.
The lid body includes a fixing portion for fixing the lid body to the outlet structure of the bottom wall, a pressing portion for pressing operation, and a lid portion that covers the outlet port. The fixed part is connected to one side via a first hinge, and the lid part is provided to the other side of the pressing part via a second hinge. When the pressing part is pressed down, the fixing part is provided. The lid body is pivotable from a closed position to an open position around the second hinge.
The plastic container according to any one of claims 1 to 8.
An upper container having a substantially rectangular upper wall and a pair of upper short-side outer walls extending in a substantially vertical direction from both ends of the upper wall;
A lower container having a substantially rectangular bottom wall and a pair of lower short side outer walls extending in a substantially vertical direction from both ends of the bottom wall;
The bottom wall is provided with an outlet structure including an outlet for taking out stored items, and a lid that covers the outlet and can be opened and closed.
The lid body includes a fixing portion for fixing the lid body to the outlet structure of the bottom wall, a pressing portion for pressing operation, and a lid portion that covers the outlet port. The fixed part is connected to one side via a first hinge, and the lid part is provided to the other side of the pressing part via a second hinge. When the pressing part is pressed down, the fixing part is provided. A plastic container in which the lid can be rotated from a closed position to an open position around a second hinge.
An engagement protrusion is provided on the inner surface side of the pressing portion, and an engagement hole that engages with the engagement protrusion is provided in the outlet structure.
The engagement protrusion engages with the engagement hole when the lid is in an open state to fix the operation of the lid in the open position;
The plastic container according to claim 10.
The outlet structure is provided with a rib that defines an opening angle of the lid.
The plastic container according to claim 10 or 11.
The outlet structure is provided with a rib for preventing the lid from floating when the lid is in the closed position.
The plastic container according to any one of claims 10 to 12.
The outlet structure is provided with an extension wall portion configured to prevent the stored contents of the plastic container from entering a cavity provided on the inner side of the lower container and opposite to the outlet. ,
The plastic container according to any one of claims 10 to 13.