JPS5940697B2 - packing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a packing device called a packing case, and an object thereof is to provide a packing device in which the outer flap does not come off even when a plurality of cases are stacked.

What is shown in FIGS. 1, 2, and 3 shows a packaging device that was conceived prior to the packaging device of the present invention, and this packaging device will first be explained.

The packaging device consists of a housing consisting of a bottom plate and four side plates.
A pair of inner flaps are provided on the periphery of the upper opening of the housing so as to be freely openable and closable, and are perpendicular to the inner flaps.
A pair of outer flaps are provided facing each other so as to be openable and closable. 1 to 3, side plates 1a, Ib, Ic, inner flaps 2a, 2b, and outer flaps 3a, 3b are shown. Ruled lines 4a, 4b are provided in the middle portions of the outer flaps 3a, 3b parallel to the edges of the side plates 1a. Furthermore, the corners of the outer flaps 3a and 3b are rounded. Each of the inner flaps 2a and 2b is provided with a T-shaped notch. For convenience of explanation, only one part is numbered and the numbers of other parts are omitted. Other parts have the same structure. 5 is the depth of cut.

This notch 5 is a notch 5 that is provided on the edge of the side plate Ic so that the tip thereof is inclined in a direction away from the outer flap 3a.
a, and a notch 5 provided from the middle of this notch 5a in a direction perpendicular to the notch 5a and toward the outer flap 3a.
It consists of b. Both ends of the cut 5a are a cut parallel to the edge of the side plate lc, and a cut perpendicular to the edge. In principle, there is no need to make a cut in this part. Ruled lines 6a and 6b are provided connecting both ends of the notch 5a and the tip of the notch 5b. As shown in FIG. 3, the ruled lines 4a of the outer flap 3a are bent to make the outer flap 3a into a chevron shape, and the corners thereof are inserted into the notches 5.

The small pieces Ta and Ib formed by the notches 5a and 5b and the ruled lines 6a and 6b act to lift upward the inserted corner of the outer flap 3a, so that the outer flap 3a reliably engages with the inner flap 2a. However, when trying to place another same packaging device on top of this packaging device, the first
If the stacking packaging device is slid in the direction of arrow A in the figure, the outer flap 3a will be pushed in the direction of arrow A by the corner of this packaging device, so there is a drawback that the outer flap 3a will come off from the outer flap 2a. . The present invention aims to eliminate the above-mentioned drawbacks, and one embodiment of the present invention will be described below with reference to the drawings.

Figures 4, 5, and 6 show the main parts of the packaging equipment according to the embodiment of the present invention, and the same parts as in Figures 1 to 3 are given the same numbers and will not be described. Omitted. A feature of the present invention is that the notch 5a extends from the notch 5b in a direction away from the upper end of the side plate 1c, and
A protruding piece 9 is formed on the small piece 7a by providing a notch 8 that is perpendicular to the end edge of the small piece 7a and a notch that is perpendicular to the notch 8 that is perpendicular to the perpendicular notch 8.
The outer flap 3a is provided with a cut-and-raised piece 10 that comes into contact with the notch 8 of the protruding piece 9, and a notch or a through hole 11 is provided in a position opposite to the small piece 7a so that the small piece 7a can be pushed. This is what we have set up.

The inserted state of the outer flap 3a is as shown in FIG.
The tip of a is engaged with a cut-and-raised piece 10 provided on the outer flap 3a.

As a result, when stacking the packaging devices, the outer flap 3a
Even if a force in the direction of arrow A is applied to the cut and raised piece 10, the small piece 7
Since the outer flap 3a is engaged with the outer flap 3a, the outer flap 3a will not escape. In order to remove the outer flap 3a, the small piece 7a is moved downward by pressing the notch 11 of the outer flap 3a, and the engagement between the small piece 7a and the cut-and-raised piece 10 is released.

Instead of the notch 11, a through hole may be used to directly press the small piece 7a. As described above, according to the present invention, by devising the outer flap and the inner flap, the outer flap does not come off even if unnecessary force is applied to the outer flap, and when necessary, the outer flap can be easily removed. The outer flap can be removed.

[Brief explanation of the drawing]

1, 2, and 3 are perspective views of essential parts of a packaging device conceived prior to the present invention, FIG. 4 is a plan view of essential parts of a packaging device according to an embodiment of the present invention, and FIG. FIG. 6 is a cross-sectional side view of the assembled packaging device obtained by cutting FIG. 4 along line B-V. 1a, 1b, 1c... side plate, 2a, 2b...
... Inner flap, 3a, 3b... Outer flap, 4a, 4b... Ruled line, 5, 5a, 5b...
... cut, 6a, 6b ... ruled line, 7a, 7
b...Small piece, 8...Cut, 9...
... Projection piece, 10... Cut and raised piece, 11...
...Cut.

Claims (1)

[Claims] 1 A pair of opposing inner flaps and a pair of opposing outer flaps are formed at the upper ends of the four side plates of the housing so that they can be opened and closed; The first flap is inclined away from the adjacent outer flap.
A second notch is formed at right angles to the first notch.
A notch is provided with its tip inclined toward the adjacent outer flap, and both ends of the first notch and the tip of the second notch are connected by a ruled line, and the ruled line and the first notch are connected to each other by a ruled line. The first cut includes a small piece extending from the second cut in a direction away from the upper end of the side plate and perpendicular to the upper edge of the side plate. A protruding piece is formed on the small piece by providing a notch and a notch making a right angle to the notch, and a notch making a right angle to the notch, and a ruled line for bending the outer flap into a chevron shape, and a crease at the tip of the protruding piece. A packaging device comprising: a cut-and-raised piece that engages with the perpendicular notch; and a notch or through-hole located at a portion facing the small piece for pushing the small piece. A packaging device characterized by comprising a notch or a through hole for pressing a small piece of.