JPH06343Y2 - Box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to the structure of a box.

[Prior Art] Various techniques for constructing a box from a single folded assembly structure have been proposed in the past, but there are few glued joints and assembly work is easy. There is a lot of room for improvement in that it is not easily disassembled, and that it is devised so as to improve the convenience of use (for example, the opening can be expanded and contracted).

[Problems to be solved by the device]

SUMMARY OF THE INVENTION An object of the present invention is to easily and securely provide an engaging and assembling structure of a bottom wall part which is particularly difficult to engage in a box body having a side wall part and a bottom wall part assembled from one piece, and an upper part. It is an object of the present invention to enhance the convenience of use by making the box body opening part of the box structure expandable and contractible.

[Means for Solving the Problems]

The subject of the present invention is constituted by a box having the following configuration. That is, a side wall part having a square cross section formed by bending four side wall elements, which are configured to be tightly tightened at the top, and which are connected to each other, at the connection part: Four bottom wall elements are provided, one of the four bottom wall elements is provided with a cut, and a portion of each of the other bottom wall elements is inserted into the cut. And a bottom wall portion formed by engaging with the bottom wall element having the cutout, and a box body comprising:

[Action]

The bottom wall portion has a structure in which the notches formed in one bottom wall element are inserted and assembled by inserting respective parts of the other bottom wall elements, so that the assembly is easy and the square side wall portion There is little risk that the bottom wall element is constrained by the structure and comes out of the notch and is disassembled, and the box shape is maintained well.

Further, since the upper portion of the side wall portion has a structure that can be tightened tightly, which is not seen in the conventional box body, it can be freely expanded and contracted in the box body open portion, which is extremely convenient in use.

〔Example〕

Hereinafter, preferred embodiments of the box according to the present invention will be described with reference to the drawings.

1 and 2 show the assembled state in a box, and FIG. 3 shows the unfolded state. As shown in FIGS. 1 and 2, the box body comprises a side wall portion 10 and a bottom wall portion 50.

The side wall portions 10 are connected to each other in order as shown in FIG.
The side wall elements 11, 12, 13, 14 and the tongue piece 17 connected to the side wall element 14 at one end are bent at their connecting portions 21, 22, 23, 24 to form a quadrangular cross section, and the tongue piece 17 It is fixed to the side wall element 11 at the end of by glueing or the like. This may be fixed by a inserting structure, in which case the gluing is not necessary at all. The bottom wall portion 50 has four bottom wall elements 51, 52, 53, 54, and the bottom wall elements 51, 52, 53, 54 are connected to the side wall elements 11, 12, 13, 14 respectively. The bottom wall elements 51, 52, 53, 54 are bent inward at right angles at the connections 31, 32, 33, 34 with the side wall elements 11, 12, 13, 14 respectively. The bottom wall element 51, which is the first from the end, is approximately quadrangular. The bottom wall element 51 is provided with a notch 60. Notch 60
A first cutting edge 61 extending parallel to the fold line 31 and shorter than the width of the side wall element 11 and a first cutting edge 61 from both ends of the first cutting edge 61.
Second and third cut edges 62, 63 extending to the end of the bottom wall element 51 in a direction away from the side wall element 31 at an acute angle θ with respect to the cut 61 of the bottom wall element 51.
And these three cutting edges 61, 62, 63 are continuous. The first notch edge 61 has a substantially quadrangular bottom wall element 51.
Is formed in the central part of the. Of the four bottom wall elements, the second bottom wall element 52 from one end and the first bottom wall element 54 from the other end
Are symmetrical to each other about the third bottom wall element 53 from the one end, and have insertion portions 52a and 54a respectively inserted into the notches 60. The third bottom wall element 53 of the bottom wall elements has an insertion portion 53 a that is inserted into the cut edge 61.

The assembly of the bottom wall part 50 begins with a bottom wall element 51 with a notch 60.
Bend inward at a right angle to the side wall 10 of the quadrangle 31
Bend at. Next, the bottom wall elements 52 and 54 are bent inward at right angles to the side wall portion 10 at the respective bent portions 32 and 34, and the respective insertion portions 52a and 54a are utilized by using the acute cutting edges 62 and 63 of the cut 60. Bottom wall element 51 with a notch 60
Insert and engage inside the box. Then, the bottom wall element 53 third from the end is bent at the bent portion 33 inwardly at a right angle to the side wall portion 10 and overlapped with the outside of the bottom wall elements 52, 54 having the insertion portions 52a, 54a. The insertion portion 53a of the bottom wall element 53 is inserted and engaged with the notch edge 61 of the notch 60 of the bottom wall element 51 having the notch 60. In this way, the assembly is completed and the bottom wall portion 50 is completed. This engagement assembly can be maintained without unraveling the bottom wall 50.
After assembling the bottom wall portion 50, if a seal is attached from the outside of the box over the bottom wall element 51 and the bottom wall element 54, the bottom wall portion 50 cannot be completely unraveled even if a heavy box is put therein.

In the vicinity of the end portion of the side wall portion 10 opposite to the bottom wall portion 50, there is a bent portion 47 that extends at a right angle to the connecting portions 21 to 24 that can be bent, and at this bent portion 47, the end portion 18 of the side wall portion 10 is a box. It is folded 180 ° inside. With the folded end 18 folded back from the end on the side where the folded back end 18 of the side wall 10 is present to the center, the widthwise center of each side wall element 11, 12, 13, 14 is the inside of the box. Bent portions 41, 42, 43, 44 that can be bent are formed.
When 42, 43 and 44 are bent, the open part above the box contracts, and when the bend is extended to make the side wall part 10 square, the open part is fully opened. That is, the upper part of the box can be expanded and contracted so that it can be tightened tightly. A string 80 (first piece) is provided in the hole 70 provided above the box.
(See FIG. 2) is inserted, and the tightening structure is completed.

Fig. 1 shows the tightened tightening and Fig. 2 shows the unfastened tightening.

The operation of the box configured and assembled as described above will be described.

First, as can be seen from FIG. 3, since the respective parts of the box body do not overlap each other, they can be punched or cut from one piece of material, which is advantageous in terms of material. If the bending line is previously recessed with a press or the like, the bending at the time of assembly can be performed easily and accurately. If the press recess of the fold line and the notch 60 are punched simultaneously with punching or cutting of the material, the notch 60 and the fold line can be easily formed. Therefore, it is possible to easily and inexpensively prepare and prepare a material in a developed state before the box body is assembled.

To assemble, first, the side wall portion 10 is formed into a quadrangular shape, the quadrangular shape is fixed by the tongue piece 17, and then the bottom wall portion 50 is bent, inserted and engaged in the order described above. Therefore, the assembling is extremely easy, and the risk of unwinding the bottom wall portion 50 is extremely small due to the insertion engagement and the quadrangular holding of the side wall portion 10, and its box-shaped holding property is very good. Moreover, if a sticker is attached, it cannot be completely untied.

Furthermore, when assembled in a box, the upper part of the box has a fold 4
Since it has a tightly tightenable structure that can be expanded and contracted along 1, 42, 43 and 44, the convenience of use is greatly improved.

[Effect of device]

 According to the present invention, the following effects can be obtained.

(A) One bottom wall element 51 is provided with a cut 60 and the other side wall elements 52, 53, 54 are inserted with the cut-out portions 52a, 53a, 54a into the cut 60 to form the bottom wall portion 50. As a result, it is easy to assemble,
Hard to unwind, can be created by punching only one piece,
There are various advantages such as.

(B) Since the folding parts 41, 42, 43 and 44 that can be bent and extended are provided on the upper part of the box, the upper part of the box has a tightly tightened structure, and the convenience of use is significantly improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a box according to an embodiment of the present invention after assembled and tightened, FIG. 2 is a perspective view of FIG. 1 when unfastened, and FIG. 3 is FIG. It is a development view of the box of. 10 …… Side wall 11, 12, 13, 14 …… Side wall element 41, 42, 43, 44 …… Bent portion for tightening structure 50 …… Bottom wall 51, 52, 53, 54 …… Bottom wall Element 60 ... Cut 61 ... First cut edge 62, 63 ... Second and third cut edge

Claims (1)

[Scope of utility model registration request] 1. A side wall part having a quadrangular cross section formed by bending four side wall elements having upper portions that can be tightened tightly together and connecting the side wall elements to each other: a connection with each side wall element and a connection with the side wall element. Has four bottom wall elements, one of the four bottom wall elements is provided with a notch, and a portion of each of the other bottom wall elements is A bottom wall portion formed by being inserted into a notch and engaging with a bottom wall element having the notch;