JP3055362U - Packaging container - Google Patents

Abstract

(57) [Summary] [Problem] To provide a cardboard packaging container that can easily and reliably fix and hold the lid to the container body simply by fitting the lid to the container body, and can be easily unpacked. I do. A side portion of a lid is provided with a portion where cardboard is double overlapped, a locking hole is opened in an inner portion of the portion where the cardboard is overlapped, and a portion which is overlapped on the outside communicates with the locking hole. In addition, a hole for unlocking operation smaller than the locking hole is opened, and a part of the main body is directed outward at a position corresponding to the locking hole in a state where the container body is covered with a lid. A locking tongue piece cut and raised to be inverted is provided.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a container made of a cardboard packaging container, in particular, a container body formed in a box shape having an open upper surface, and a lid formed in a box shape having a lower surface opening and fitted to an upper end of the container body. The present invention relates to an improvement in a structure for fixing and holding a lid to a container body.

[0002]

[Prior art]

 Conventionally, a corrugated cardboard packaging container in which the top opening of the container body is covered with a box-shaped lid with an open bottom surface is closed, and the lid and the container body are fixed using a special fixture, or the container body is closed. The cover is held so as not to come off from the container body by means such as banding over the cover and the cover.

[0003] However, as in the case of the above-mentioned conventional packaging container, in a means for fixing the lid and the container body using a special fixing tool or for banding the container body and the lid, the container body is covered with the lid. In addition to the fitting work, it requires work such as fixing with a fixing tool and hanging a band, so that it took time and effort to pack and unpack. In addition, since it was necessary to prepare fixtures and bands, storage and management of the fixtures and bands were troublesome, and processing of the fixtures and bands after unpacking was also troublesome.

[0004]

[Problems to be solved by the invention]

 The present invention has been made in view of the above-mentioned conventional circumstances, and the purpose thereof is to simply and securely fix and hold the lid on the container body simply by fitting the lid on the container body. An object of the present invention is to provide a corrugated cardboard packaging container which can be easily formed and unpacked.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, in the packaging container of the present invention, a container body made of a cardboard made of a rectangular box having an open upper surface and a rectangular box having an open lower surface are provided. And a lid made of cardboard which is formed in a shape and is fitted on the upper end of the container main body. A locking hole is opened in the part that is provided, and a hole for unlocking operation smaller than the locking hole is opened in the part that is superposed on the outside so as to communicate with the locking hole. A locking tongue formed by cutting and raising a part of the container so as to be turned downward outward is provided at a position corresponding to the locking hole when the lid is placed on the container body. .

Further, according to the present invention, a container body made of a corrugated cardboard and having a rectangular box shape with an open upper surface, and a container with a rectangular box shape with an open lower surface are provided. A lid made of corrugated cardboard is fitted on the upper end of the main body. The lid has a top plate and side plates connected to each side of the top plate and bent vertically downward. In a packaging container which is connected by connecting a connection margin to one side plate and abutting the connection margin on the inner surface of the other side plate and fixing the same, the lid is opened at the connection margin. A locking hole and a side plate overlapping with the connection allowance have a hole for unlocking operation smaller than the locking hole opened by communicating with the locking hole on the side plate. A portion of the side wall corresponding to the locking hole is cut out so that the side wall is turned outward and downward. It is characterized by having a locking tongue piece formed in this way.

Further, according to the present invention, a container body made of corrugated cardboard and having a rectangular box shape with an open upper surface and a rectangular box shape with an open lower surface are provided on the container body. The container body has a flap which is connected to at least the upper end edges of a pair of opposing side plates and is horizontally bent inward. In a packaging container in which at least the side plate overlapping the outer surface of the side plate having the flap of the container body is formed in a double structure by the outer plate and the inner plate when fitted to the upper end of the container body, the container body is formed of the flap. A locking tongue formed by cutting and raising a part outwardly at the boundary with the side plate so as to be turned outward and downward; and a lid having a locking hole for locking the locking tongue formed on the inner plate. , Connect to the above-mentioned locking hole on the outer plate And having a through hole for small unlocking operation from opening the locking holes. In any case, the locking hole has a feature that is at least as large as the size of the locking tongue piece.

[0008]

[Actions and effects of the invention]

 In the packaging container according to each of the claims configured as described above, the locking tongue is pressed against the side wall of the container main body by fitting the lid to the container main body. By fitting the lid into the container body to a position that matches the locking tongue, the locking force of the locking tongue is loosened by the lid, so that the locking tongue rebounds with its lower end outward due to its elasticity. Then, it enters the locking hole and locks on the lower edge of the locking hole.

Therefore, in the packaging container of the present invention, the lid is automatically fixed and held on the container main body by fitting the lid to the main body, and the lid cannot be removed. In other words, the container of the present invention can easily and securely fix and hold the lid to the container body simply by fitting the lid to the container body, and the fitting of the lid and the fixing and holding of the lid are performed in one operation. Therefore, the workability of the packaging operation can be significantly improved. Moreover, when unpacking, the locking tongue can be easily released from the locking hole by pushing the locking tongue inward with a finger or the like via the through-hole for unlocking operation. If the lid is lifted upward, the lid can be easily removed from the container body, making unpacking very easy. In addition, there is no need for special fasteners for connecting the lid and the container body, as in conventional packaging containers, and no need for a band, etc., so there is no need for labor to store and manage them. There is no need to clean up or dispose of the band.

[0010] In the packaging container according to the third aspect of the present invention, the location where the container body is fixedly held is not limited to the corner of the lid, as in the packaging container according to the second aspect. There is also an effect that it can be arbitrarily fixed and held at an optimum location according to the above.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3 show a first embodiment. In FIG. 1, A is a container body, and B is a lid, each of which is formed by bending and assembling one cardboard blank, or by bending and assembling two or more cardboard blanks and interconnecting them. It is formed by this. The container body A has an upper surface formed by a rectangular bottom surface portion 1, for example, a rectangular shape, and side plates 21, 22, 23, and 24, which are provided on each side of the bottom surface portion 1 and vertically bent upward. The lid B is formed in a box shape having an open rectangular cross section, and the lid B is provided with a rectangular (rectangular) top plate 3 that is larger than the bottom plate 1 of the container body A once, and is connected to each side of the top plate 3 so as to be downward. The side plates 41, 42, 43, 44, which are bent vertically, are formed in a shallow box shape having a rectangular cross section with an open bottom surface, and cover the upper surface of the container body A so as to close the upper surface opening. A cover B is externally fitted to the upper end of A.

A locking hole 5 is formed in the inner surface of the lid B, and a locking tongue 6 for fitting and locking into the locking hole 5 is provided in the container body A. That is, the lid B has connection margins 7 extending at both ends of a pair of opposed side plates 41 and 42 (hereinafter, referred to as first side plates) as shown by phantom lines in FIG. The allowance 7 is bent inward at a right angle and overlapped on the inside of another pair of side plates 43, 44 (hereinafter referred to as second side plates), and is bonded to the second side plates 43, 44 by means such as bonding or staple. The connection margin 7 is provided with a rectangular locking hole 5 penetrating the connection margin 7 in the thickness direction.

[0013] A through hole 8 for unlocking operation is formed in a portion of the second side plate 43, 44 of the lid B corresponding to the locking hole 5, whereby the locking hole 5 is penetrated. It communicates with the outer surface of the lid B through the hole 8. It is desirable that the through hole 8 for the unlocking operation is smaller than the locking hole 5 as much as possible, but it is desirable that the through hole 8 has at least a size that allows insertion of the thumb of the hand.

On the other hand, the locking tongue 6 overlaps the inner surfaces of the pair of opposed side plates 23 and 24 of the container body A, more precisely, the second side plates 43 and 44 of the lid B when the lid B is fitted. Two cut lines 61, 61 are provided in parallel from the upper edges of the side plates 23, 24 downward at a distance from each other, and the portion between the cut lines 61 is outwardly formed at the base of the cut line 61. It is formed by bending at least 90 degrees or more. The locking tongue 6 is desirably formed to have a length and width approximately equal to or slightly smaller than the height and width of the locking hole 5. It is needless to say that the locking tongue 6 is provided at a position corresponding to the locking hole 5 in a state where the lid B is fitted to the opening on the upper surface of the container body A.

In this embodiment, since the locking hole 5 is provided in the connection margin 7 continuously provided at both ends of the pair of opposed side plates 41 and 42 of the lid B, the locking hole 5 and the connection hole The locking tongues 6 to be stopped are provided at the four corners of the container main body, and are not provided at other locations. The connection margin 7 does not necessarily need to be provided on the first side plates 41 and 42 as in the illustrated example, and may be provided continuously with the second side plates 43 and 44.

In the packaging container configured as described above, when the lid B is fitted to the container body A, the locking tongue piece 6 is formed by the inner surfaces of the second side plates 43 and 44 of the lid B, As a result, the locking tongue 6 does not hinder the smooth fitting of the lid B. When the locking tongue piece 6 pressed against the side plates 43 and 44 of the container main body A by the inner surface of the lid B is aligned with the locking hole 5 of the lid B by fitting the lid B onto the container main body A, The pressing force of the inner surface of the locking tongue 6 by the inner surface of the locking tongue 6 is reduced, and the locking tongue 6 rotates and returns outward by the elastic restoring force of the corrugated cardboard, so that the lower end portion is rotated outward by the depth of the locking hole 5. The lower end of the locking tongue piece 6 is locked to the lower edge of the locking hole 5 so that the lid B is fixed and held on the container body A, and the lid B is removed. I can't do anything.

In this state, the locking tongue 6 faces the outside of the container body A through the through hole 8 opened in the second side plates 43 and 44 of the lid B. Therefore, in the fixed holding state of the lid B, by pushing a finger or the like into the through hole 8 and pushing the locking tongue piece 6 inward, the locking of the locking tongue piece 6 to the locking hole 5 is released, The lock between the container body A and the lid B is released. If the lid B is lifted upward in this state, the lid B can be removed from the container body A.

Next, a second embodiment shown in FIGS. 4 to 6 will be described. Also in this embodiment, the container body A and the lid B are each formed by bending, assembling, or connecting one or two cardboard blanks, and the container body A is a box-shaped container having an open upper surface. The lids B are each formed in a shallow box shape with an open bottom, and the lid B is externally fitted to the upper end of the main body A so as to close the upper opening of the main body A.

In the lid, a pair of opposed side plates, for example, second side plates 43 and 44 are formed in a double structure by an outer plate a and an inner plate b, and a locking hole 5 is formed in the inner plate b. In addition, a through hole 8 for unlocking is formed in the outer plate a.

The double side plates 43 and 44 having the locking hole 5 and the unlocking through hole 8 are provided with an outer plate a connected to the top plate 3. An inner plate b is connected to a front end of the outer plate a via a fold line 9. The inner plate b is bent inward at the fold line 9 and overlaps the inner surface of the outer plate a. The piece 10 is inserted into and engaged with an engagement slit 11 provided at a boundary between the outer plate a and the top plate 3.

The locking hole 5 is formed by cutting the inner plate b from its tip toward the fold line 9 over an appropriate width. The locking holes 5 can be provided at arbitrary locations in the longitudinal direction of the second side plates 43 and 44, in addition to the two locations near the longitudinal ends of the second side plates 43 and 44 as in the illustrated example. The number can be set to three or more according to the size of the container. The first side plates 41, 42 orthogonal to the second side plates 43, 44 having the double structure are of a single structure, and the joint allowances 7 provided at both ends are connected to the outer plates a of the second side plates 43, 44. By being inserted between the inner side plate b and the inner side plate b, it is joined and connected to the second side plates 43 and 44.

On the other hand, the container body A is provided with folding lines 99 at the upper ends of a pair of opposing side plates 23 and 24 overlapping the inner surfaces of the second side plates 43 and 44 of the cover B when the cover B is fitted. Flaps 25 and 26 that are bent inwardly are provided, and the flaps 25 and 26 are provided with locking tongue pieces 6 that lock the locking holes 5. The locking tongue piece 6 has a cut line 62 provided on the flaps 25 and 26 so as to be appropriately spaced from the fold line 99 and parallel to the fold line, and reaches the fold line 99 from both ends of the cut line 62. A portion surrounded by the two cut lines 63, 63 is formed by bending outward at a fold line 99, and the flaps 25, 26 are formed at right angles inward with respect to the side plates 23, 24. In the bent state, it is turned upside down so that the angle with the side plates 23 and 24 is at least 90 degrees or less.

In this embodiment, similarly to the first embodiment, the locking tongue piece 6 enters the locking hole 5 by fitting the lid B onto the container body A, The lower edge locks to the lower edge of the locking hole 5, and the lid B is locked to the container body A, so that the lid B cannot be removed. Then, by inserting a finger or the like into the through hole 8 for unlocking operation and pushing the locking tongue 8 inward, the locking of the locking tongue 6 into the locking hole 5 is released, and the container body A The lid B is unlocked, and the lid B can be lifted upward and removed from the container body A.

The first side plates 41 and 42 may have a double structure in place of the second side plates 43 and 44, and the locking holes 5 and the unlocking through holes 8 may be formed in the first side plates 41 and 42. Of course, it is optional.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a packaging container of the present invention in a state immediately before a lid is fitted to a container body, and shows an enlarged main part on the container body side.

FIG. 2 is a perspective view of a main part of the lid as viewed from the inside.

FIG. 3 is an enlarged cross-sectional view of a main part, wherein (a) shows a state immediately before the lid is fitted to the container body, and (b) is a state in which the lid is fitted to the container body, and the lid is fixedly held to the container body. FIG.

FIG. 4 is a perspective view of a packaging container according to a second embodiment, showing a state immediately before a lid is fitted to a container body.

FIG. 5 is a perspective view illustrating an assembled state of a lid.

FIG. 6 is an enlarged cross-sectional view of a main part, in which (a) shows a state immediately before the lid is fitted to the container body, and (b) is a state in which the lid is fitted to the container body and the lid is fixedly held to the container body. FIG.

[Explanation of symbols]

 A: Container body B: Lid 3: Top plate 5: Locking hole 6: Locking tongue piece 7: Connection margin 8: Through hole for unlocking operation a: Outside plate b: Inner plate 25, 26: Flap 21 , 22,23,24: Side plate of container body 41,42,43,44: Side plate of lid

Claims (4)

[Utility model registration claims] 1. A cardboard container body formed in a rectangular box shape with an open upper surface, and a cardboard lid formed in a rectangular box shape with an open lower surface and fitted on the upper end of the container body. In the packaging container, the lid has a portion where cardboard is double overlapped on a side portion thereof, a locking hole is opened in a portion which is overlapped on the inside at the location, and a portion where the cardboard is overlapped on the outside is provided. A locking tongue formed by cutting and raising a part of the container body so as to invert the part outward outward is formed with a hole for unlocking operation smaller than the locking hole communicating with the locking hole. A packaging container, wherein a piece is provided at a position corresponding to the locking hole in a state where a lid is placed on the container body. 2. A container body made of a corrugated cardboard, which is formed in a rectangular box shape having an open upper surface, and a lid made of a corrugated cardboard, which is formed in a rectangular box shape having an open lower surface, and is fitted to an upper end of the container body. The lid has a top plate and a side plate connected to each side of the top plate and bent vertically downward, and the adjacent side plates are connected to one side plate to form a connection margin. In the packaging container which is connected by being fixed to the inner surface of the other side plate by abutting and overlapping, the lid is connected to the locking hole opened at the connection margin and the side plate overlapping the connection margin with the locking hole. The container body has a hole for unlocking operation smaller than the locking hole opened in the above, and the container body is turned upside down in a portion corresponding to the locking hole of the side wall when the lid is fitted. Characterized in that it has a locking tongue piece cut and raised to make it Wearing container. 3. A cardboard container body formed in a rectangular box shape with an open upper surface and a cardboard lid formed in a rectangular box shape with an open lower surface and fitted on the upper end of the container body. The container body has a flap connected to the upper end edges of at least a pair of opposing side plates and horizontally bent inward, and the lid is at least the container body in a state where the lid is fitted to the upper end of the container body. In a packaging container formed by forming a side plate overlapping the outer surface of the side plate having the flap into a double structure with an outer plate and an inner plate, the container body has a part of the flap facing outward at a boundary portion with the side plate. It has a locking tongue formed by cutting and raising in an inverted shape, and a lid is formed by connecting the locking tongue formed on the inner plate with the locking hole and communicating with the locking hole on the outer plate. Lock release operation smaller than the Packaging container and having a throughbore. 4. The packaging container according to claim 1, wherein the locking hole has a size at least equal to or larger than the size of the locking tongue.