JPH052575B2 - - 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 or for secondary packaging of a primary packaging container already containing products.

[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 primary packaging containers for directly storing liquids such as milk and alcohol, as well as for bottles and tube containers containing products, or synthetic resin containers. It is also used as a secondary packaging container for containers, etc., that is, as a secondary packaging container for a primary packaging container.

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, the present invention consists of a paper container including 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 a part of the lid wall is opened.
The object is to allow the product or the primary packaging container to be exposed to the outside by pushing the bottom body up through the opening.

[Summary of the invention]

The paper container of the present invention has a bottomless box body which is provided with a lid wall that locks with difficulty in opening at the upper part of the side wall, and a support wall with a stepped upper end is attached to the inner surface of the lower part of the side wall, and a bottom which is inserted into the box body. It consists of a square-shaped bottom body with a side piece provided around the wall, and a locking wall divided outward from the upper edge of the side piece according to the stepped part of the support wall, folded back, and the bottom body is placed above the bottom of the box body. As the bottom body is inserted, the divided pieces of the locking wall can be locked sequentially from the lower part to the higher part of the support wall, while closing a part of the lid wall. It can be opened in any state.

[Embodiments of the invention]

Below, the structure of the paper container according to the present invention will be explained based on drawings of embodiments. 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 with a stepped upper end is attached to 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, and pasting one end of each side wall. An attachment piece 12 is provided, and side walls 21, 22, 23,
The lid wall 3 is continuous above at least one wall of 24, and the stepped 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.
, and the insertion piece 5 is provided protruding from the tip of the upper lid wall 31, or instead of the reinforcing wall 34, an inner lid wall 32 similar to the upper lid wall 31 is provided above the chevron-shaped side walls 22, 23 as shown in FIG. , 32' are continuous, and a through hole 37 is formed in the center of the inner lid walls 32, 32', and a through hole 37 is formed in the center of the upper lid wall 31.
A break hole 36 is provided to match the rupture hole 36, and claw pieces 15 are provided protruding from 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 walls 32, 32', and a tongue piece is provided at the other continuous side. A piece insertion hole 39 is bored therein.

Support wall 4 with a stepped upper end that continues below the side wall 2
Continuously extends below at least one of the four side walls 21, 22, 23, 24, and forms a stepped shape that gradually becomes narrower toward the bottom.
Support walls 41, 42, 4 below 2, 23, 24
3 and 44, and a low step part 4a below the side wall 2.
and a high step part 4b are provided in this order, or a low step part 4a, a middle step part 4c, and a high step part 4b are provided in order, and the support 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 sides 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,
and the tongue piece 38 are continuous via the 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,
At that time, the locking wall 8 continuous above the side piece 7 is folded back to the outside, and the bottom body is first inserted into the box body from below, and the bottom body is inserted into the bottommost step of the stepped support wall 4.
a to constitute the paper container of the present invention.

When the bottom body is inserted into the inside of the box body from the bottom,
The locking wall 8, which is folded outward from the side piece 7 of the bottom body, is divided according to the stepped portion of the support wall 4, and is slightly spread due to elasticity, so that it is inscribed in the stepped support wall 4. When either of the divided pieces 8a, 8b passes through the bottom step 4a of the support wall 4, it comes off the bottom step 4a and comes into contact with the inner surface of the side wall 2.
a to make it impossible to lower the divided pieces 8a and 8b.
The other one is inscribed in the upper stage 4b higher than the bottom stage 4a.

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, the lid wall 3 is opened and a product is directly stored inside the paper container, or a primary packaging container T such as a bottle is inserted, and then the lid wall 3 is opened.
The lid wall 3 is sequentially bent and sealed.

At that time, in the case of a box having an upper cover wall 31 and a reinforcing wall 34, the reinforcing wall 34 is first bent, and in the case of a box in which inner cover walls 32, 32' are provided in place of the reinforcing wall 34, First, bend the inner lid walls 32, 32',
Next, the upper cover wall 31 is bent, and the insertion piece 5 provided at the tip thereof is inserted and locked. In addition, in the case of a box body having a tongue piece 38 on one of the inner lid walls 32, 32' and an 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 lid walls 32, 32' are bent. and lock the inner lid walls 32, 32' together in a folded state.

Furthermore, in the case of a box body provided with claw pieces 15 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 walls 32, 32'. The upper cover wall 31 is locked in such a way that it cannot be opened unless the locking of the claw piece 15 is forcibly released.

When taking out a product from the paper container of the present invention, first open the lid wall 3 which is in the closed state, and then open the stepped support wall 4.
The bottom body, which is locked to the lowest stage 4a and cannot be lowered, is pushed up from below, and the divided piece 8b of the bottom body locking wall 8, which was inscribed in the support wall 4, comes off from the upper stage 4b of the support wall 4. When the split piece 8b rises to the upper stage 4
At the same time as it comes off from b, it springs out in the direction of the side wall 2 due to elasticity, comes into contact with the inner surface of the side wall 2, and is locked to the upper stage 4b, making the bottom body unable to descend 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.

A break hole 36 is made in the upper cover wall 31, and a break hole 36 is made in the inner cover wall 32, 3.
In the case of a paper container with a through hole 37 provided in the paper container 2', after breaking the tear hole 36 and communicating with the through hole 37, the bottom body, which was locked to the bottom step 4a of the support wall 4, is moved to the top. Step 4
If it is pushed up until it is locked in b, the head t of the primary container T can be exposed through the through hole 37 without opening the lid wall 3.

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 step-shaped upper end support wall 4 is continuous below the side wall 2.

Inner lid wall 3 that continues above the chevron-shaped side walls 22 and 23
2, 32' has vertical fold lines in two rows, a top surface 3a' continuous to the top edge 2a in the center, and 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 and a square-shaped bottom that is inserted into the box from below. Therefore, since the support walls attached to the inner periphery of the box are locked sequentially from the bottom to the upper level, the bottom body will not be locked even if the product or primary packaging container is stored inside the paper container. It cannot fall below or escape from its position. Moreover, since the bottom body can be raised to several levels, the paper container can be used while opening the lid wall and pushing out the stored product, and the primary packaging container stored inside the paper container can also be taken out by pushing out the bottom body. It becomes easier.

In particular, with the paper container of the present invention, if the break hole in the lid wall is opened by pushing it open, not only can the product be taken out directly from the opening without opening the entire lid wall, but also the primary packaging container stored inside the paper container can be removed. As the bottom body rises, it can be pushed upward and the head of the primary packaging container can be exposed to the outside through the opening, so there is a great advantage that the primary packaging container can be used without being completely removed. Moreover, the box body and bottom body of the paper container of the present invention can be folded individually for storage or transportation, and when assembled, the bottom body can be locked by simply inserting the bottom body upward from the bottom of the box body. Therefore, there is no need to fix the bottom body.

In addition, the entrance of the box is sealed with several overlapping lid walls, a supporting wall is provided on the lower side wall of the box, and the side pieces of the bottom are inscribed in the supporting wall, so that the lower part of the paper container becomes a triple wall. Because of this structure, the upper and lower parts of the paper container are strong and stable in shape.

The paper container of the present invention can be used not only for direct packaging of various products, but also for
In general, it has practical effects as a secondary packaging container for storing products such as bottles, cans, tube containers, synthetic resin containers, etc.

[Brief explanation of the drawing]

Figures 1 and 2 are partially cutaway perspective views showing examples of how the paper container of the present invention is used, Figures 3 and 4 are partially cutaway perspective views showing how the paper container is used, and Figure 5 is a box body. Fig. 6 is a partially cutaway front view of the bottom; Fig. 7 is a vertical sectional view of the lower part;
8 and 8 are longitudinal cross-sectional views showing how the bottom body is locked to the box body, FIGS. 9 to 11 are plan views showing examples of the shape of the developing paper for boxes, and FIGS. 12 and 13 are bottom views. FIGS. 14A, 14B, and 14C are vertical cross-sectional views of the upper part of the paper container showing an example of how to open the lid wall tear hole. ...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...Break hole, 37...Through hole, 38...
Tongue piece, 39...insertion hole, T...primary packaging container, t...container head, 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 locks with difficulty in opening 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 bottom wall 9 inserted into the box body.
A side piece 7 is provided around the side piece, and a locking wall 8 is folded outward from the upper edge of the side piece according to the stepped portion of the support wall. The bottom body can be inserted into the box from below, and can only be inserted upwards.
A paper container characterized in that, as the bottom body is inserted, the divided pieces of the locking wall can be locked to the high step portion of the support wall in sequence from the low step portion.