JPH052574B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a paper container used for direct packaging of various products, secondary packaging of containers already containing products, and the like.

[Technical background of the invention and its problems]

Conventional paper containers are used not only as containers for directly storing solid objects but also as containers for directly storing liquids such as milk and alcohol. It is also used as a secondary packaging container for products such as bottles, tube containers, or synthetic resin containers.

Among the paper containers mentioned above, in the case of paper containers that directly store products, the stored product can be taken out directly by simply opening the paper container, but paper containers are easily damaged during transportation and handling, and if damaged, the product It had some flaws that made it defective. Furthermore, in the case of paper containers used as secondary packaging, the primary packaging container such as a bottle can be protected from damage, so even if the paper container is damaged, the product will not be defective. However, when taking out the product, you must first open the lid of the paper container, completely remove the primary packaging container from inside the paper container, open the removed primary packaging container, and then remove the product from the primary packaging container. It was an unnecessary hassle.

[Purpose of the invention]

Therefore, this invention consists of a paper container consisting of a bottomless box body with a lid wall and a bottom body that locks in stages from the bottom to the top of the box body, and when the bottom body is pushed up, the product or primary packaging is removed. The object is to allow the containers to be sequentially exposed to the outside.

[Summary of the invention]

The paper container of the present invention includes a lid wall at the top of the side wall,
A bottomless box body with a stepped support wall attached to the lower inner surface of the side wall, a side piece provided around the bottom wall inserted into the box body, and a locking wall folded back outward from the upper edge of the side piece. It is composed of a square-shaped bottom body that divides the stop wall according to the steps of the support wall, and the bottom body can only be inserted upward from the bottom of the box body, and the stop wall is divided as the bottom body rises. The pieces can be sequentially engaged with the higher part of the support wall than the bottom part.

[Embodiments of the invention]

Below, the structure of the paper container according to the present invention will be explained based on drawings of embodiments. It is composed of a square-shaped bottom body.

The bottomless box has a lid wall 3 connected to the upper part of the side wall 2 so as to be openable and closable, and a support wall 4 having a stepped upper end is installed on the inner surface of the lower part of the side wall 2.

The box developing paper 1 constituting this bottomless box body is divided into four side walls 21, 22, 23, 24 in a horizontal row by providing longitudinal fold lines d at appropriate intervals on the side walls 2, with glue attached to one side end. An attachment piece 12 is provided, and side walls 21, 22, 23,
The cover wall 3 is continuous above at least one wall of 24, and the support wall 4 is continuous below the side walls 21, 22, 23, and 24.

The lid wall 3 that continues above the side wall 2 has an upper lid wall 31 above the center side wall 21 and a reinforcing wall 34 above at least one of the left and right side walls 22 and 23, as shown in FIG.
Either the insert piece 5 is provided protruding from the tip of the upper lid wall 31, or, as shown in FIG. A through hole 37 is provided in the center of the walls 32, 32', and a break hole 36 that coincides with the through hole 37 is provided in the center of the upper cover wall 31.
, and protruding claw pieces 15 on the left and right sides of the insertion piece 5, a tongue piece 38 at the center of one tip of the inner lid wall 32, 32', and a tongue piece insertion hole 39 on the other continuous side. It is intended to create a hole.

Support wall 4 with a stepped upper end that continues below the side wall 2
is continuous with at least one of the four side walls 21, 22, 23, and 24, and forms a step shape that gradually becomes narrower toward the bottom. Specifically, there is a low step portion 4a below the side wall 2. Either high step portions 4b are provided in sequence or low step portions 4a are provided in sequence.
A middle section 4b and a high section 4c are provided, and the supporting wall 4 thereof is bent inward and attached to the inner surface of the side wall 2.

As a means for attaching the stepped support wall 4, for example, the support wall 4 may be glued to the inner surface of the side wall 2, or each step portion 4a,
Glue surface B on the inner surface slightly below the top of 4b and 4c
is provided and attached to the inner surface of the side wall 2.

Upper lid wall 31, middle lid wall 32, 32', reinforcing wall 34,
Stepped support walls 41, 42, 43, 44, insertion piece 5,
The tongue pieces 38 are continuous along a transverse fold line e.

The bottom body has a side piece 7 facing the box side wall 2 erected around a bottom wall 9 to be inserted into the bottomless box body, and is attached to the lower inner surface of the box body outside the upper edge of the side piece 7. A locking wall 8 that locks onto the stepped support wall 4 is folded back.

The bottom developing paper 6 constituting this bottom body is the 12th
As shown in the figure, a vertical fold line d is provided on the side wall 2 of the box body, and the side wall width H
Slightly smaller four side pieces 71, 72, 73, 74
are divided into horizontal rows, and a glued piece 17 is provided at one end thereof,
In addition, above at least one of the four side pieces 71, 72, 73, 74, a locking wall 8 that is folded back to the outside of the side piece 7 is provided.
1, 82, 83, 84, and below the side piece 7, an assembly type bottom wall 91, 92, 93, 94 or a glued type bottom wall 9 is continued, and the central part of the locking wall 8 A notch 18 is provided in the locking wall 8, and the locking wall 8 is divided into two pieces 8a, 8.
Alternatively, as shown in FIG. 13, notches 18 are provided at two locations on the locking wall 8 to form three divided pieces 8a, 8b, and 8c.

The side pieces 7 and the bottom wall 9 are continuous with each other via the transverse fold line e.

Since the paper container of the present invention has the above-mentioned structure, a bottomless box body is assembled in advance from the expanding paper 1 for the box, and at that time, the stepped support wall 4 continuous to the lower part of the side wall 2 is folded back to the inside. is attached to the side wall 2, and a square-shaped bottom body is assembled from the bottom developing paper 6, and at that time, a locking wall 8 continuous above the side piece 7 is folded back to the outside.

When the bottom body assembled as described above is first inserted from the bottom to the top of the box body, the locking walls 8 folded outward from the side pieces 7 of the bottom body are slightly opened due to elasticity from the folded state. Therefore, it is inserted while being inscribed in the stepped support wall 4 attached to the lower inner surface of the box side wall 2, and either of the locking wall division pieces 8a, 8b is inserted into the support wall 4.
At the same time as it passes through the bottom step 4a, it comes off from the bottom step 4a and comes into contact with the side wall 2 with a light impact sound, and the other side inscribes the upper step 4b which is higher than the bottom step 4a.

Divided piece 8a of locking wall 8 removed from bottom step 4a
is locked to the bottommost stage 4a of the stepped support wall 4,
The bottom body becomes unable to descend downward. In this state, a paper box with a bottom, that is, a paper container of the present invention is constructed.

In the paper container of the present invention constructed as described above, products can be directly stored from above as in the conventional case, or a primary packaging container such as a bottle can be inserted. After storing products and primary containers, a lid wall 3 that is continuous above the side wall 2
Fold and seal in sequence.

In the case of a box having inner lid walls 32, 32',
First, fold the inner lid walls 32, 32', and then fold the upper lid wall 3.
Fold and lock 1. In addition, in the case of a box body having a tongue piece insertion hole 38 on one side of the inner cover walls 32, 32' and a tongue piece insertion hole 39 on the other side, the tongue piece 38 is inserted into the insertion hole 39 at the same time as both inner cover walls 32, 32' are bent. and lock the inner lid walls 32, 32' together in a folded state,
Finally, the upper lid wall 31 is bent, and the insertion piece 5 provided at the tip of the upper lid wall 31 is inserted and locked.

In the case of a box with claw pieces 15 provided on the left and right sides, if the claw pieces 15 are bent and inserted, the claw pieces 15 will return a little with elasticity after insertion and will be locked to the inner lid wall 32 and the auxiliary wall 35. The upper lid wall 31 is locked in such a way that it cannot be opened unless the locking of the claw piece 15 is forcibly released.

If the box has a through hole 37 in the middle cover wall 32 and a break hole 36 in the top cover wall 31, the break hole 36 can be punched to open the through hole 37 without opening the cover wall 3. It is possible to directly take out the product or expose the head of the primary container.

The bottom body inserted into the inside of the box body cannot descend downward due to the locking wall 8 folded back to the outside and the stepped support wall 4 attached to the lower inner surface of the box body, and can only be removed upward. Become.

When taking out a product from the paper container of the present invention, the lid wall 3 which is in the closed state is opened, or the break hole 36 of the upper lid wall 31 is pushed open to partially open the bottom layer of the stepped support wall 4. 4a and cannot be lowered, is pushed up from below, and the divided piece 8b of the locking wall 8 that was inscribed in the support wall 4 is removed from the upper stage 4b of the support wall 4, and at the same time Side wall 2 due to elasticity
The split piece 8b of the locking wall 8 hits the upper stage 4 of the support wall 4.
b, so that the bottom body cannot be lowered in the raised position.

In the case of the paper container of the present invention, in which the stepped support wall 4 of the box body is formed into three stages, and the locking wall 8 of the bottom body is divided into three parts according to the stages of the support wall 4, the bottom body is formed into one more stage. It can be raised and locked.

The box development paper 1' shown in FIG. 11 has chevron-shaped side walls 22, 23 whose upper edges form a trapezoid, and valley-bottom side walls 21, 24 which are continuous to the valley sides of the side walls 22, 23, which are alternately continuous. The inner lid walls 32, 32' are continuous above the top edge 2a of the side walls 22, 23, and the auxiliary walls 35 are continuous above the oblique edges 2b, 2c continuous to the left and right of the top edge 2a, respectively, and the bottom side walls 21, An upper lid wall 31 is continuous to one side of the side wall 24, and a support wall 4 with a stepped upper end is continuous below the side wall 2.

Inner lid wall 3 that continues above the chevron-shaped side walls 22 and 23
2, 32' are provided with vertical fold lines in two rows, have a top surface 3a' continuous to the top edge 2a in the center, and have slanted edges 2 on the left and right sides of the top surface 3a'.
An upper cover wall 31 that forms slopes 3b' and 3c' that are bent along ridges b and 2c and continues above the valley bottom side wall 21.
The horizontal folding line is provided in two rows, and the inner lid wall 32,
A top surface 3a that overlaps the top surface 3a' of the inner lid wall 32' is formed, and slopes 3b and 3c that overlap the slopes 3b' and 3c' of the inner lid walls 32 and 32' are formed above and below the top surface 3a.

Furthermore, a through hole 37 is provided in the center of the inner lid wall 32, 32', a break hole 36 is formed in the center of the upper lid wall 31 to match the through hole 37, and an insertion piece 5 is provided at the tip of the upper lid wall 31. , claw pieces 15 are provided protrudingly on the left and right sides of the insertion piece 5, and a tongue piece 38 is provided at the center of one tip of the inner lid wall 32, 32'.
A tongue piece insertion hole 39 is bored on the other continuous side.

It should be noted that the paper container of the present invention is not limited to the above-mentioned embodiments, but includes an inner lid wall 3 that is continuous above the side wall 2.
2 and the reinforcing wall 34, or both can be omitted, and not only can the auxiliary wall 35 and the inner cover wall 32 be omitted, but also the box body, the bottom body, and the structure thereof can be omitted. The shape and structure of the spread sheets 1 and 6 can be changed as appropriate depending on the size of the paper container and the purpose of use, as long as it does not go against the gist of the present invention.

〔Effect of the invention〕

Therefore, the paper container of the present invention is composed of a bottomless box with a cover wall that can be opened and closed, and a square-shaped bottom that can be inserted only upward from the bottom of the box, so that the bottom can be raised. Accordingly, the divided pieces of the locking wall folded back to the outside are sequentially locked to the uppermost layer of the stepped support wall attached to the inner surface of the box. Even when a paper container or primary packaging container is stored, the bottom body will not fall below the locking position or fall out, and the bottom body can be raised in stages, so it is possible to open the lid wall and store it inside the paper container. The product can be used while being extruded, and the primary container stored in the paper container can be easily taken out by extruding the bottom body.

Moreover, the box and bottom of the paper container of the present invention can be folded individually for storage or transportation, and when assembled, the bottom can be locked by simply lifting the box from the bottom to the top. There is no need to fix or attach the bottom body.

In addition, a stepped support wall is installed at the bottom of the box, and the side pieces of the bottom are in contact with the support wall, making the bottom of the paper container look like a triple wall. Being strong and stable in shape, the present invention has practical effects not only as a paper container for directly packaging various products, but also as a secondary packaging container for containers that already contain products.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway perspective view of the paper container of the present invention;
The figure is a perspective view showing an example of its use, Figure 3 is a partially cutaway perspective view showing an example of the structure of a paper container, Figure 4 is a perspective view showing an example of the structure of a paper container, and Figure 5 is a vertical cross-section of the lower part of the box. 6 is a partially cutaway front view of the bottom body, FIGS. 7 and 8 are longitudinal sectional views showing how the bottom body is locked to the box body, and FIGS. 9 to 11 are exploded views of the box body. FIGS. 12 and 13 are plan views showing examples of paper shapes, and FIGS. 12 and 13 are plan views of bottom development paper. ...bottomless box body, ...bottom body, 1,1'...box development paper, 2,21,22,23,24...side wall, 3,3
1, 32, 32'...lid wall, 4, 41, 42, 43,
44...Stepped support wall, 4a, 4b, 4c...Stepped portion, 5
...Insert piece, 15...Claw piece, 6...Development paper for bottom, 7,7
1, 72, 73, 74...side piece, 8, 81, 82,
83, 84... Locking wall, 8a, 8b, 8c... Divided piece, 9, 91, 92, 93, 94... Bottom wall, 12,
17... Glued piece, 18... Notch, 34... Reinforcement wall, 3
5... Auxiliary wall, 36... Broken hole, 37... Through hole, d... Vertical fold line, e... Horizontal fold line, B... Glued surface, H... Side wall width.

Claims (1)

[Claims] 1 A bottomless box body with a lid wall 3 that can be opened and closed above the side wall 2 and a support wall 4 with a stepped upper end attached to the lower inner surface of the side wall, and a side wall around the bottom wall 9 inserted into the box body. It is composed of a box-shaped bottom body in which a locking wall 8 is folded outward from the upper edge of the side piece according to the steps of the support wall, and the bottom body faces upward from the bottom of the box body. 1. A paper container that can be inserted through the support wall, and as the bottom body rises, the divided pieces of the locking wall can lock successively from the low step portion to the high step portion of the support wall.