JP2003191948A - Lidded box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the point of a problem that adverse workability is caused by the necessity of sticking an inner member fitted into an outer box to it with an adhesive and fixing the inner member thereto in a conventional lidded box having a so-called spigot structure consisting of an outer box which has side sheets rising from a peripheral edge of its bottom sheet and whose upper face is kept in an open state, an inner member which has side frames along the inner peripheral surfaces of the side sheets of the outer box and which projects upwardly of the opening of the outer box in the state that the side frames are fitted into the outer box, and a lid member which is fitted onto the inner member projecting from the outer box to close the upper face opening of the outer box. <P>SOLUTION: In the lidded box, an engaging step 16 is formed on one of the sides of portions where side sheets 6a-6d of the outer box 1 and side frames 12a-12d of the inner member 2 are superposed on one another, and a claw-like anchor piece 17 which is engaged with the engaging step 16 is formed on the other side thereof. The anchor piece 17 and the engaging step 16 are designed so as to be engaged with each other in the direction in which the levitation of the inner member 2 is prevented. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a box with a lid having a so-called imprint structure, which is a combination of an outer box having an upper opening and a lid member.

[0002]

2. Description of the Related Art Conventionally, an outer box having a bottom plate with a side plate raised to form an upper surface and an outer box having a side frame along the inner circumference of the side plate of the outer box and the side frame fitted in the outer box. There is a box with a lid having a so-called imprint structure, which includes a middle member protruding above the opening and a lid member fitted to the middle member protruding from the outer box to close the upper surface opening of the outer box.

[0003]

The above-mentioned conventional box with a lid has a problem in that the inner member fitted in the outer box needs to be fixed by adhering it with an adhesive, resulting in poor workability and high cost. It was

[0004]

[Means for Solving the Problems] An outer box in which a side plate is erected on a bottom plate to form an upper surface opening, and a side frame having an inner circumference of the side plate of the outer box and having the side frame fitted in the outer box A box with a lid having a so-called inro cage structure consisting of a middle member protruding above the opening of the outer box and a lid member fitted to the middle member protruding from the outer box to close the upper surface opening of the outer box. An engagement step portion is formed on one side of the overlapping portion of the side plate and the side frame of the middle member, and a claw-shaped anchor piece that engages with the engagement step portion is formed on the other side. Provided is a box with a lid, the parts of which engage with each other in a direction to prevent the middle member from rising.

In this box with a lid, since the engaging step portion and the anchor piece are engaged with each other to prevent the inner member from rising, it is not necessary to bond the inner member to the outer box.

Further, as described in claim 2, it is preferable that the anchor piece is formed by cutting out the outer periphery except the bottom side from the side frame of the middle member, and bending it from the bottom side to expand toward the side plate side of the outer box. . Alternatively, as described in claim 3, the anchor piece may be formed by cutting out the outer periphery except the upper side from the side plate of the outer box, and bending from the upper side to expand toward the side frame side of the middle member. In either case, when the middle member is inserted into the outer box and the anchor piece and the engagement step portion reach a point where they coincide with each other, the anchor piece and the engagement step portion automatically mesh with each other.

If the anchor piece and the engaging step portion are arranged in the vicinity of the corner as described in claim 4, the rigidity due to the corner acts positively and the anchor piece and the engaging step portion have a positive effect. Engagement is secure. Furthermore, folding pieces and the like overlap in the vicinity of the corner, which guards the rear surface of the engagement step portion and prevents the anchor piece from passing through the engagement step portion, so that the engagement between the anchor piece and the engagement step portion is ensured. .

Further, as described in claim 5, a tongue piece for preventing the anchor piece from passing through may be projectingly provided on the engagement step portion. By doing so, the reliability of the engagement between the engagement step portion and the anchor piece is improved, so that the degree of freedom in arranging the engagement step portion and the anchor piece is increased.

[0009]

First Embodiment A first embodiment of the present invention will be described below with reference to the drawings. 1 is an exploded perspective view, FIG.
FIG. 4 is an exploded perspective view showing a state in which the inner member is attached to the outer box, FIG. 3 is a developed view of the outer box, FIG. 4 is a developed view of the inner member, and FIG. 5 is a vertical sectional view including an enlarged view of a main part.

The box of the present invention, as shown in FIG.
An outer box 1 made of corrugated paper, synthetic resin sheet or other material, and an intermediate member 2 assembled to the outer box 1 and made of paperboard, corrugated paper, synthetic resin sheet or other material
And a lid member 3 formed of a paperboard, a corrugated paperboard, a synthetic resin sheet or other material that closes the upper opening of the outer box 1.

The outer box 1 is roughly composed of a square bottom plate 4 and four side plates 6a to 6d connected to four sides of the bottom plate 4 via folding lines 5 as shown in the development view of FIG. These side plates 6a-6
d is a double structure in which two parallel folding lines 7 and 7 are provided in the middle, and the folding line 5 and the folding lines 7 and 7 are valley-folded in FIG. 3, so that the side plates 6a to 6d are provided on the periphery of the bottom plate 4. The outer side plates 6a-1 to 6d-1 and the outer box 1
Fold inside. The side plates 6a to 6d are connected to each other by a connecting piece 8, and the side plates 6a and 6c are
Folding pieces 9 are provided at both ends of the side plates 6a-1 and 6c-1. The connecting piece 8 is folded in a triangular shape in the assembled state and is folded between the side plates 6b and 6d, and the folding piece 9 is overlapped with the connecting piece 8 so that the side plate 6b and the side plate 6d are overlapped.
Folded in between.

Next, the middle member 2 is composed of a square bottom cover plate 10 and four side frames 12a to 12d connected to four sides of the bottom cover plate 10 via folding lines 11 as shown in the development view of FIG. Composed. Each of the side frames 12a to 12d is provided with a bendable flap-shaped cover plate 14 continuously provided via a folding line 13, and a bending piece 15 continuously provided at both ends of the side frames 12b and 12d via a folding line 19. Has been. And the polygonal lines 11, 1
3 and 19 are valley-folded in FIG. 4, so that the bottom cover plate 10
The side frames 12a to 12d are raised, the bending piece 15 is overlapped in front of the side frames 12a and 12c, and the top cover plate 14 covers the top part in an openable and closable state.

The inner member 2 is a side plate 6a to 6d of the outer box 1.
The size is set along the inner circumference of the side frame 12a.
The heights of up to 12d are set to be higher than the heights of the side plates 6a to 6d.

Next, since the lid member 3 has a shape in which the top and bottom of the outer box 1 are turned upside down to reduce the height, detailed description thereof will be omitted. The size of the opening of the outer box 1 and the size of the downward opening of the lid member 3 are the same.

The gist of the present invention, however, is the side plate 6 of the outer box 1.
b, 6d and the side frames 12b, 12d of the middle member 2 have the engaging step portion 16 on one side (the side plates 6b, 6d in this embodiment) of the overlapping portion and the other side (the middle member 2 of the present embodiment). Claw-shaped anchor pieces 17 that engage with the engagement step portions 16 are formed on the side frames 12b and 12d) so that the anchor pieces 17 and the engagement step portions 16 mesh with each other in a direction that prevents the intermediate member 2 from rising. It is in the point that I made it.

As shown in FIG. 3, the engagement step portion 16 is formed by notching the edges of the side plates 6b-1 and 6d-1 which are folded inside the box, in a concave shape. In this embodiment, the engagement step portion 16
Is formed in the vicinity of a corner where the folding piece 9 and the connecting piece 8 are folded.

On the other hand, as shown in FIG. 4, the anchor piece 17 is a quadrangle having a shape substantially matching the engagement step portion 16, and the outer periphery (three sides) excluding the bottom side 17a is a side frame of the middle member 2. 12b and 12d are cut out to form the bottom 17
It is bent in the same direction as the side frames 12b and 12d by using a as a fold line, and is naturally expanded toward the side plates 6b and 6d by the elasticity of the material itself. The bottom side 17a of the anchor piece 17 should be slightly offset (approximately the thickness of the middle member 2) to the outside, rather than being provided at the same position as the fold line 11 of the bottom plate 4 and the side frames 12b and 12d. By doing so, the anchor piece 17 approaches the side plates 6b and 6d of the outer box 1, so that the engagement with the engagement step portion 16 is ensured.

Next, a method of attaching the middle member 2 to the outer box 1 will be described. First, when the outer case 1 is assembled as described above, the bottom plate 4 of the side plates 6b and 6d folded inward as shown in FIG.
A square engaging step portion 16 is formed in a portion contacting with. The engagement step portion 16 penetrates one of the insides of the side plates 6b and 6d having the double structure, but as shown in the enlarged view of FIG. 5, the rear surface is almost closed by the folding piece 9. ing.

Next, as shown in FIG. 1, the side frames 12a-
12d is erected and the anchor piece 17 is erected and inserted from above the outer box 1. Then, the anchor piece 17 descends while rubbing against the side plates 6b and 6d. Note that the anchor pieces 17 may be laid down instead of standing up one by one. This is because even if the anchor member 17 is pressed as it is, the anchor piece 17 hits the side plates 6b and 6d and bends naturally when the inner member 2 is pushed into the outer box 1.

Next, when the inner member 2 is fully pushed into a predetermined position, that is, a position where the bottom cover plate 10 contacts the bottom plate 4 of the outer box 1, the anchor pieces 17 of the side frames 12b and 12d are pushed at that position.
And the engaging step portions 16 of the side plates 6b and 6d coincide with each other,
The anchor piece 17 rubbed by 6d automatically fits into the engagement step portion 16 by its own elasticity. Then, since the upper side of the anchor piece 17 and the engagement step portion 16 are engaged with each other, the middle member 2
Even if a pulling force is applied to the anchor piece 17, the anchor piece 17 is stuck and stops its movement. The anchor piece 17 once fitted into the engagement step portion 16 is in a so-called fit-and-kill state and cannot be easily removed. Also, as described above, the engagement step portion 1
Since the rear surface of 6 is closed by the folding piece 9, the anchor piece 17
Does not pass through the engagement step portion 16 and is not disengaged.

When the inner member 2 is attached to the outer case 1 in this way, the top of the inner member 2 projects above the opening of the outer case 1 as shown in FIG. Block the opening.

[0022]

Second Embodiment of the Invention FIGS. 6 to 9 show a second embodiment of the present invention.
6 is an exploded perspective view, FIG. 7 is an exploded perspective view showing a state in which the inner member is attached to the outer box, FIG. 8 is a developed view of the outer box, and FIG. 9 is a developed view of the inner member. is there. The same members or substantially the same members as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

The gist of the second embodiment is, therefore, the engagement step portion 16
In addition, a tongue piece 18 for preventing the anchor piece 17 from passing through is provided at the point. When the engaging step portion 16 is near the corner and the rear surface is covered by the folding piece 9 as in the first embodiment, the anchor piece 17 can be almost prevented from passing through, but as in the second embodiment. When the portion 16 is formed in the central portion of the side plates 6b and 6d, the side plates 6b and 6d are easily bent and a wide gap is formed on the rear surface of the engagement step portion 16, and a member for closing the rear surface of the engagement step portion 16 is also provided. Since there is no anchor piece 17, the anchor piece 17 may pass through the engagement step portion 16. On the other hand, if the tongue piece 18 is provided so as to project from the engagement step portion 16, the anchor piece 17 cannot pass through the engagement step portion 16, so that the engagement step portion 16 is formed at any position of the side plates 6b and 6d. be able to. Since the tip of the tongue piece 18 is not fixed and is pushed back by the anchor piece 17 and retracts to some extent, the engaging step portion 1
There is no problem in meshing 6 and the anchor piece 17. This has been confirmed by trial production. Further, if a folding curve 18a such as a sewing rule is formed on the base of the tongue piece 18, the tongue piece 18 easily bends from the base portion, and when the tongue piece 18 is pushed by the anchor piece 17, it is easily retracted. The engagement of the engagement step portion 16 and the tongue piece 18 due to the cooperative relationship between the three becomes more reliable.

Although the present invention has been described with reference to the first and second embodiments, the present invention is of course not limited to the above embodiments. For example, the first and second embodiments have side plates 6b and 6d.
The engaging step portion 16 and the anchor piece 17 are formed at the lower ends of the side frames 12b and 12d, and as shown in FIG.
6d and the side of the side frame 12b, 12d in the middle of the engagement step portion 16
Alternatively, the anchor piece 17 may be formed. Also,
The middle member 2 of the first and second embodiments has a bottom cover plate 10,
The side frames 12a to 12d may have a tubular shape only.

In the first and second embodiments, the anchor piece 17 is used.
The engaging member 16 is formed on the inner member 2 and the engaging step portion 16 is formed on the outer case 1, but the anchor piece 17 is formed on the side plate 6 of the outer case 1 as shown in FIG.
b and 6d, the engagement step portion 16 is provided on the side frame 12 of the middle member 2.
b, 12d may be formed. In that case, since the direction of the anchor piece 17 is opposite to that of the first and second embodiments,
The upper side 17b of the anchor piece 17 is a broken line. Further, the engagement step portion 16 is not limited to the case where the engaging step portion 16 is cut out into a square shape as in the first and second embodiments, and, for example, as shown in FIG.
You may make it utilize the straight end surface of. Also,
The number of engaging step portions 16 and anchor pieces 17 is arbitrary, and the shape of the box is circular in plan view, triangular, pentagonal, hexagonal, heptagonal,
It may be octagonal or more polygonal.

[0026]

In the box with lid of the present invention, since the engaging step portion and the anchor piece mesh with each other to prevent the middle member from rising,
There is no need to bond the middle member to the outer box. Therefore, the work process can be simplified, and the box with the lid of the imprint structure can be manufactured at low cost.

Further, in any one of claims 2 and 3, when the middle member is inserted into the outer box and the point at which the anchor piece and the engaging step portion coincide with each other is reached, the anchor piece and the engaging step portion automatically mesh with each other. Therefore, it is easy to attach the middle member to the outer box.

Further, if the anchor piece and the intermediate member are arranged near the corner as described in claim 4, the rigidity of the corner acts positively and the engagement between the anchor piece and the engaging step portion is surely performed. In addition, folding pieces and the like overlap in the vicinity of the corners, which guard the rear surface of the engagement step portion and prevent passage of the anchor piece to the engagement step portion, so that the engagement between the anchor piece and the engagement step portion is prevented. Be certain.

Further, since the tongue piece that prevents the anchor piece from passing through is provided on the engaging step portion as described in claim 5, the certainty of the engagement between the engaging step portion and the anchor piece is improved. The degree of freedom in arranging the engagement step portion and the anchor piece is increased.

[Brief description of drawings]

FIG. 1 is an exploded perspective view.

FIG. 2 is an exploded perspective view showing a state in which a middle member is attached to the outer box.

FIG. 3 is a development view of an outer box.

FIG. 4 is a development view of a middle member.

FIG. 5 is a vertical sectional view including an enlarged view of a main part.

FIG. 6 is an exploded perspective view.

FIG. 7 is an exploded perspective view showing a state in which a middle member is attached to the outer box.

FIG. 8 is a development view of an outer box.

FIG. 9 is a development view of a middle member.

FIG. 10 is an exploded perspective view showing another embodiment.

FIG. 11 is an exploded perspective view of a main part showing another embodiment.

FIG. 12 is an exploded perspective view of a main part showing another embodiment.

[Explanation of symbols]

1 ... Outer box 2 ... Medium member 3 ... Lid member 4 ... Bottom plate 6a to 6d ... Side plate 12a to 12d ... Side frame 16 ... Engagement step 17 ... Anchor piece 17a ... bottom 17b ... upper side 18 ... tongue

Claims (5)

[Claims] 1. An outer box in which a side plate is erected on a bottom plate to form an upper surface opening, and a side frame extending along the inner circumference of the side plate of the outer box and having the side frame fitted in the outer box, the outer box opening. A box with a lid having a so-called seal cage, which comprises a middle member protruding upward and a lid member fitted to the middle member protruding from the outer box to close an upper surface opening of the outer box, wherein a side plate of the outer box and the middle member. An engaging step portion is formed on one side of the overlapping portion of the side frame, and a claw-shaped anchor piece that engages with the engaging step portion is formed on the other side, and the anchor piece and the engaging step portion are intermediate members. A box with a lid that engages in a direction that prevents the rising of the. 2. The anchor piece is formed by cutting out the outer periphery except the bottom side from the side frame of the middle member, and bending it from the bottom side so as to expand toward the side plate side of the outer box. A box with a lid according to Item 1. 3. The anchor piece is formed by cutting out an outer periphery excluding an upper side from a side plate of an outer box and bending the upper side so as to expand toward a side frame side of the middle member. A box with a lid according to Item 1. 4. The box with a lid according to claim 1, wherein the anchor piece and the engaging step portion are arranged in the vicinity of a corner. 5. The tongue piece for preventing the anchor piece from passing through is projectingly provided on the engagement step portion.
The box with a lid according to any one of 1 to 4.