JPS6121365Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a rectangular extruded double packaging box made from sheet material with curved portions at the four corners, specifically an inner box of the same shape that is locked at the front and back of an outer box, which can be easily operated. This invention relates to a double packaging box that can be smoothly extruded.

To explain this proposal with reference to the attached drawings, Fig. 1 is a die-cutting assembly drawing of an inner box showing an embodiment of the present invention, and A is a die-cutting plan view of sheet material (solid lines are die-cutting lines, dotted lines are ), B is the first line of the same middle box.
C is a perspective view of the middle box during second stage assembly; D is a perspective view of the middle box after assembly.

In Fig. 1A, the arrow is a die-cut plan view of the inner box, 1 is the outer wall portion that should form the long side of the rectangle,
1' is the part where the curved part R is to be formed at both ends of the outer wall, 2 is the mountain fold line that is folded into a chevron shape with respect to the surface during assembly, 3 is the inner wall part of 1, and 3' is the curved part at both ends of the inner wall part 3. The part to form R, 4, is a fold line that is folded into a valley shape with respect to the surface, and the end is branched into a valley fold line at 4' and a mountain fold line at 4''. Surface 5 is curved overlapping inside 3'. 6 is the bottom plate of the inner box 1, 7 is a loose upward bending line of the bottom plate 6, 8 is a sharp bending line and a flat part 9
fold vertically. 10 also forms double folded parts 9 and 11 by bringing the flat part 11 into close contact with the back side of the flat part 9 with a sharp bending line. Both ends 1' of the outer wall 1 and inner wall 3 bent in this way,
The faces 3' and 5 are overlapped and inserted between the double folded parts 9, 11, and thus the overlapped sides 1', 3', 5 are the overlapped long sides 1, 3 and the overlapped sides 1, 3. A curved portion R of a rectangular inner box is formed by the short sides 11 and 9. Here, R indicates the radius of curvature.
In B, C, and D, all the same numbers refer to the same parts as A. In this way, after passing through the assembly steps B and C, the planes 9 and 11 form a double folded part of both the front and rear short sides of the rectangle, and the curved part 1 at the front and rear ends of the side wall is inserted from the left and right into the double folded part. ', 3', and 5 are held to form a packaging box that is a rectangular inner box with curved portions having a radius of curvature R at the four corners of the front end and the rear end. Since these forming materials are elastic sheet materials, they hold the side wall curved parts 1', 3', 5 at the front and rear ends inserted into the folded double folded parts 9, 11, and provide balanced stability. can be maintained in the same state.

Fig. 2 is a die-cut assembly drawing of the outer box indicated by the arrow indicating one embodiment of the present invention, and shows the finished shape,
The size is a rectangle with curved parts at the four corners, having the same shape but slightly larger dimensions, suitable for inserting the inner box from the front end or rear end and sliding it easily as shown in D of Fig. 1 above. It is a packaging box. A is a die-cut plan view of the sheet material forming the outer box (solid lines are punching lines, dotted lines are broken lines), B is a perspective view of the same outer box during assembly, and C is a perspective view of the assembled outer box. be. In these drawings, reference numeral 100 indicates a portion forming a long side wall of the assembled rectangular box body, and 101 indicates both ends of the side wall 100, which extend longitudinally longer than both ends of the top plate 102 and bottom plate 103 of the assembled box body. , the opening 10 is sufficient even if it is curved as shown in C.
It has a length that reaches the center of 5. Reference numeral 104 indicates a glue portion, and the glued surface on the back side thereof is bent, and the side wall 10
0 to form an outer box.

Fig. 3 shows a perspective view of a rectangular extruded double packaging box with curved parts at the four corners according to the present invention, A shows an outer box with an inner box inside, and B shows an inner box that is pushed as shown by arrow A. This shows the state in which the box opens and comes out smoothly. To add an explanation to A, 9 indicates the front surface of the double folded part of the inner box exposed from the front end opening 105 of the outer box, and the front end 101 of the side wall 100 of the outer box is curved to form the double folded part. It is inserted and held between the barbed parts 9 and 11. Similar insertion and retention is performed at the rear end of the outer box to complete the closure. B has the same configuration as A, but after pulling out the rear end insertion parts 101 of the outer box from the double folded parts 9 and 11 of the inner box that are exposed at the rear end of the outer box and cannot be seen from here. , part 9
When the surface of the box is lightly pressed as shown by arrow A, the front end insertion portion 101 of the outer box will also be removed from the double folded portion 9 at the front end.
11 and the inner box is smoothly pulled out.

The packaging box of the present invention is a rectangular or boat-shaped inner box with curved corners at the four corners obtained by cutting and folding as shown in Figure 1, and an outer box of the same shape obtained by cutting and folding as shown in Figure 2. It can be sealed by inserting it inside, and can be opened easily from one opening, so it has an extremely wide range of uses as a double packaging box that can store food and other lightweight products.

[Brief explanation of the drawing]

Figure 1 shows an example of the present invention.
In the assembly drawings, A is a die-cut plan of the sheet material, B is
C is a perspective view during assembly, D is a completed view, and the second
The figures are similar views of the outer box corresponding to Figure 1, where A is a plan view of the die-cut model, B is a perspective view during assembly, C is a completed view, and A of Figure 3 is the main design with a built-in inner box. FIG. 7 is a perspective view of the double packaging box, and FIG. In these drawings, the inner box indicates the outer box, and 1,
3 is overlapped to form the outer wall, 6 is the bottom plate, 9 and 11 are overlapped to form a double folded part, 1', 3'5 are overlapped and curved and inserted into the parts 9 and 11. form a box. 100 is the outer wall, 102 and 103 are the upper plates,
The bottom plate, 101, shows the outer box portions of the ends of 100 extending to the opening 105.

Claims (1)

[Scope of utility model registration request] The ends 1', 3'5 of the curved parts are attached to the front and rear short side double folded parts 9, 11 of a rectangular box body having curved parts at the four corners obtained by cutting, folding and assembling the sheet material. Inner boxes inserted and held one on top of the other,
It is an assembled box body of the same shape that slidably surrounds the inner box along its long sides, and consists of an outer box whose front and rear short sides are open and whose long side ends 101 extend to the openings 105. When the outer box is closed, the long side end 101 of the outer box is inserted and locked into the front and rear double folded parts 9 and 11 of the inner box, but when the box is opened, the inner box Double folded part 9, 1 at the rear end of the box
1. A rectangular extruded double packaging box having curved portions at four corners, characterized in that the inner box is smoothly extruded by pulling out the long side end 101 of the outer box from 1 and pushing it forward.