JP3086046B2 - Machine for manufacturing boxes, blanks and boxes of sheet material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a box made of cardboard or corrugated paper or similar sheet material, a blank of such sheet material for producing boxes, ie, blanks, and from such blanks. The present invention relates to a machine for manufacturing a box.

[0002]

BACKGROUND OF THE INVENTION For example, U.S. Pat. No. 4,242,949.
DE 3,541,821 and FR 2,629,012 describe machines for making boxes from cardboard or similar material by wrapping a blank wrapped around a mandrel. doing. In such a machine, the mandrel actually takes the form of a rectangular parallelepiped such that the resulting box is made in the form of a rectangular parallelepiped.

[0003] Such boxes are used to package objects or sets of objects which are inserted through an open lid,
The lid is closed only after the object has been placed in the box.

[0004]

Occasionally, very rarely, the shape of the load portion constituted by an object or a set of objects is such that the overall height of the load portion is constant and therefore the protruding corner of the packaging box. At least some of the parts are adapted so that the overall height of the box into which the object is inserted so as to be empty is as close as possible to the shape of the box. As a result, such empty protruding corners of the packaging box, which are exposed to external shocks, are easily broken and lose their shape and their protection against objects is reduced. Furthermore, empty corners of the packaging box are wasted sheet material because such packaging boxes are useless.

Accordingly, an object of the present invention is to solve such a problem. To this end, the present invention has square or rectangular sides connected to the set by each polygonal line, wherein the polygonal lines are parallel to each other and form a parallelepiped with rectangular sides, and Such as cardboard or corrugated paper, characterized in that the sides form a quadrangular pyramid connected by a base to a parallelepiped, and each of the remaining sides is constituted by a panel having a side edge that is freely inclined. It provides a box made of sheet material.

Thus, for the parallelepiped quadrangular pyramid-shaped box of the present invention, the load that the shape of the box comprises
That is, it can be better adapted to the shape of the load and eliminates unused protruding corners of the box, thereby reducing the risk of damaging such protruding corners and saving sheet material. .

[0007] US Pat. No. 2,643,815 relates to a box for containing bulk objects, which ejects the bulk objects from a box that uses an opening defined by the pyramidal portions of the box. Sometimes it can be seen to have trapezoidal panels connected together by a triangular gusset to form a sealed portion between the trapezoidal panels.

[0008] The purpose of US Patent No. 2,643,815 is to
As in the case of the invention, it cannot be adapted to the shape of the object to be stored, but instead acts as an opening.

In each case, the sealing gusset integrally formed by the panels requires special folding when the box is formed, which is inconsistent with the industrial technology of manufacturing the box. doing.

[0010] The box of the present invention preferably has a lateral tongue which forms a seal along the lateral edges of the pyramid.

[0011] The other lateral surface can be triangular.
However, these surfaces are preferably trapezoidal. Thus, the box can be provided with a closed face with a truncated pyramid at the end remote from the parallelepiped.

According to another feature of the invention, the blanks of sheet material, such as cardboard or corrugated cardboard, for producing the boxes of the invention, ie the blanks, are connected to one another via a first parallel fold line. A continuous square or rectangular first panel and a first panel provided along one side of the continuous panel and connected to the first panel via a second fold line perpendicular to the first fold line and at the bottom of the box. A first set of end folds to form at least a portion thereof and a corresponding one of the first panels furthest from the first set of end folds along a third fold line perpendicular to the first fold line. A trapezoidal or triangular second panel is connected to each of the two sides via a base.

Preferably, at least some of the second panels have bendable triangular tongues along at least one of the free inclined edges to obtain a seal along the lateral edges of the pyramid. And each tongue corresponds to a second line
Connected to the panel.

[0014] Preferably, by means of a trapezoidal second panel, the blank is arranged adjacent to the small base of the second panel and connected to the second panel by a fourth fold line perpendicular to the first fold line and the box. Has a second set of end folds to form at least a portion of the closure surface of the second set.

[0015] French Patent No. 2,629,012 discloses a continuous rectangular or rectangular first panel which is connected to each other via a first, parallel, fold line.
A first set of folds provided on one side of the panel and connected to the first panel via a second fold line perpendicular to the first fold line and forming at least a portion of the bottom of the box; A machine for making boxes from blanks of sheet material having a mandrel whose outer shape corresponds to the inner shape of the box to be obtained, and an intermediate panel of continuous panels at least approximately facing the corresponding face of the mandrel To move the intermediate panel toward the corresponding surface of the mandrel and press the intermediate panel against the corresponding surface after folding the panel adjacent to the intermediate panel so that the adjacent panel is pressed against the mandrel. Means for winding a continuous first panel around a mandrel, such as when the first panel is wound around a mandrel It describes a box making machine having a means for securing the end panel of the first panel with the.

Such box making machines are built to remedy the shortcomings inherent in machines for making "American" boxes. Accordingly, it would be advantageous to improve the machine for making boxes of the present invention.

To this end, according to yet another feature of the invention, a machine of the type described above comprises a third set of lines furthest from the end turn of the first set along a third fold line perpendicular to the first fold line. In a blank having a trapezoidal or triangular second panel, each of which is connected via a base to a corresponding one side of a panel and has a free inclined side edge, the mandrel is arranged in a four-sided position with respect to the mandrel. The means for supporting, moving and pressing the intermediate panel in the form of a rectangular parallelepiped with a pyramidal pedestal has a pressing plate with two rigidly connected surfaces, and two of the pressing plates The first side of the surface corresponds to the intermediate panel and the second side corresponds to the second side adjacent to the intermediate panel.
Corresponding to one of the panels, these first and second surfaces of the pressure plate form a dihedral angle so that the second surface is pressed when the first surface is pressed against the corresponding surface of the rectangular part of the mandrel. Face is pressed against one of the faces of the quadrangular pyramid portion of the mandrel corresponding to the adjacent second panel, and the dihedral edge is thus
Means provided to press the second panel against the corresponding faces of the mandrel, corresponding to the edges of the mandrel between the faces of the mandrels corresponding to the rectangular and quadrangular pyramids, respectively; Means provided to secure the second panel together when pressed in this manner.

Accordingly, the first and second panels of the blank are accurately positioned with respect to the mandrel so that the first and second panels correspond to the mandrel so that the shape of the box to be manufactured is particularly accurate. The blank is wound while being held against the surface.

Affixing the second panel when at least some of the second panels have bendable triangular tongues along at least one of the inclined edges connected to the corresponding second panel by a fold line. Preferably, the means for folding comprises means for folding the triangular tongue to secure the triangular tongue to the second panel supporting the triangular tongue.

Further, the second panel is trapezoidal, is disposed adjacent the small base of the second panel, is connected to the second panel by a fourth fold line perpendicular to the first fold line, and has at least one of the closed surfaces of the box. Due to the blank having a second set of end folds to form a section, the box making machine of the present invention provides a second set of edges to the end face of the square pyramid portion of the mandrel.
And a means for fixing together the folded portions folded downward in such a manner.

Preferably, the means for winding the continuous first panel around the mandrel comprises a moving device having a swing arm.

Embodiments of the present invention will now be described in detail by way of example with reference to the accompanying drawings.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The blank of sheet material, for example, cardboard or corrugated cardboard, shown in FIG. 1, that is, blank F, is aligned and connected to one another via parallel preformed fold lines 5-7. It has four consecutive rectangular panels 1-4. The tongue piece 8 is provided along a free edge of the rectangular panel 4 at the end of the continuous rectangular panels 1 to 4 and is connected to the rectangular panel 4 at the end by a fold line 9 parallel to the fold lines 5 to 7. I have.

The rectangular panels 10.1, 10.2, 10.3, 10.4 are provided on one side of each of the rectangular panels 1-4. Each rectangular fold 10.1, 10.2, 10.
3 and 10.4 represent the preformed polygonal lines 11.1 and 11.1.
2,11.3,11.4 are hinged to each rectangular panel 1-4. These broken lines 11.1, 11.2,
11.3, 11.4 are aligned and each broken line 5-7
At right angles. The sides of the rectangular panels 1-4 opposite the sides associated with the folds 10.1-10.4 are associated with each trapezoidal panel 12.1, 12.2, 12.3, 12.4. .
Each trapezoidal panel 12.1, 12.2, 12.3, 12.4 has a preformed score line 13.1, 1 corresponding to a large base.
It is hinged to the corresponding rectangular panels 1-4 via 3.2, 13.3, 13.4, respectively. Broken line 13.1,
13.2, 13.3, 13.4 are aligned and perpendicular to the fold lines 5-7.

The rectangular panels 1 to 4 and the tongue piece 8 are all at the same height h. The two rectangular panels 1 and 3 are identical to each other and have a length L. The two rectangular panels 2, 4 are also identical,
The length l is shorter than the length L.

The sides of the trapezoidal panels 12.1 to 12.4 opposite to the sides associated with the rectangular panels 1 to 4 have respective rectangular folds 14.1, 14.2, 14.3, 14.3. Related to 4. Each folded part 14.1, 14.2, 14.3, 14.
4 are pre-formed fold lines 15.1, 15.2, 15.2 corresponding to the small bases of the trapezoidal panels 12.1-12.4.
3, 15.4 corresponding trapezoidal panels 12.1-1
Hinged to 2.4.

The polygonal lines 15.1 to 15.4 are aligned,
It is perpendicular to the polygonal lines 5-7,9.

Each triangular tongue 16 is hinged along two inclined edges of each trapezoidal panel 12.2, 12.4 via a preformed fold line 17. The triangular tongue 16 of the trapezoidal panel 12.2 extends between the trapezoidal panel 12.2 and the trapezoidal panels 12.1, 12.3, one of the triangular tongues 16 of the trapezoidal panel 12.4 being Trapezoid panel 1
It extends between 2.4 and the trapezoidal panel 12.3. The other triangular tongue 16 of the trapezoidal panel 12.4 projects outward on the same side as the tongue 8.

The blank F of the sheet material is shown in FIGS.
As described in detail below, the rectangular panels 1-4 are wound and fixed together to form trapezoidal panels 12.1-
12.4 and folded parts 10.1, 10.2, 10.3, 1
By fixing together 0.4, 14.1, 14.2, 14.3, 14.4 together it is designed to form the box C shown in FIG. The box C has a general external shape of a parallelepiped pa on which a quadrangular pyramid py is placed. The large side of the parallelepiped pa of the box C is formed by rectangular panels 1 and 3, and the small side of the parallelepiped pa is formed by rectangular panels 2 and 4, and the trapezoidal panels 12.1, 12..
2, 12.3 and 12.4 form a large surface and a small surface of the quadrangular pyramid py. Further, the bottom of the box C has a tongue 10.
1, 10.2, 10.3, 10.4, and the lid of box C has folds 14.1, 14.2, 14.3, 14.
4. The tongues 16 are folded over the large face of the pyramid py and are preferably glued to the lateral ridges of the pyramid py, i.e. on the large face of the pyramid py so as to provide a seal along the edge. It is fixed.

The folded parts 10.1 and 10.3 are identical and rectangular. These folded portions 10.1 and 10.3 have a length equal to the length L of the rectangular panels 1 and 3. Folding part 1
0.2 and 10.4 are identical to each other. These folded portions 10.2, 10.4 have a length equal to the length l of the rectangular panels 2, 4.

FIG. 2 shows a box C in which a quadrangular pyramid py is opened so as to show the relative positions of the trapezoidal panels 12.1 to 12.4, the folded portions 14.1 to 14.4, and the tongue piece 16. However, since box C is automatically closed at the end of the pyramid, as described below, the situation of FIG. 2 does not occur in the manufacturing process described below.

FIG. 4 is a longitudinal sectional view showing a case where a box C is used for packaging a bottle B separated by a cross-shaped separator S. It can be seen that the top of bottle B is in close contact with box C because of the pyramid py of box C corresponding to trapezoidal panels 12.1-12.4. The protruding empty corners 18 shown by dotted lines have been omitted and replaced with inclined walls that are less susceptible to damage from outside attacks. In addition, compared to a regular rectangular box, a small amount of sheet material is used at each corner, saving about 30% at each top corner.

FIGS. 8 to 16 show that the pyramid pyr is closed by the folded portions 14.1 to 14.4 and the folded portion 1 is closed.
Open bottom box C formed by 0.1 to 10.4
FIG. 2 is a schematic view showing a machine for manufacturing the slab. For clarity, these figures are intentionally schematic and simplified, and each figure contains only those items that are necessary to understand the manufacturing steps illustrated.

The machine shown in FIGS. 8 to 16 has a mandrel 20 (shown enlarged in FIG. 5) whose outer shape corresponds to the inner shape of the box C to be made from the sheet material, ie the blank F. doing. To this end, the mandrel 20 has a rectangular parallelepiped-shaped part 21 from which a quadrangular pyramid-shaped part 22 extends. 8 to 16
As shown in the figure, the parallelepiped part 2 of the mandrel 20
The length of one can be different from the height h of the rectangular panel on the side of the box C. The mandrel 20 can be solid or it can be constituted by a frame forming a corner ridge as shown in FIGS. In these figures, the mandrel 20 comprises rectangular lateral pressing surfaces 24-27 of rectangular panels 1-4 of a sheet material blank F, bent ridges 28-31 corresponding to the fold lines 5-9, and trapezoidal panel 12 .1 to 12.4 trapezoidal pressing surfaces 32 to 35, connecting ridges 36 to 39 between trapezoidal panels,
Bar 23 for partitioning from 4.1 to 14.4 end pressing surface 40
(Cross-sectional views of FIGS. 6A to 6C, and FIGS. 7A to 7C
(Shown in side view). The outer shape of the end pressing surface 40 forms a bent ridge corresponding to the fold lines 15.1 to 15.4 of the folds 14.1 to 14.4.

FIGS. 6A, 6B, 6C, 7A, 7B, and 7C show the intermediate rectangular panel 3 with respect to the corresponding bottom surface 24 of the mandrel 20. FIG. FIG. 3 shows the step of positioning a blank F of sheet material with respect to the mandrel 20 when required to operate.

Conventional machines, for example French Patent No. 2,6
The machine shown in US 29,012 is used to bring the plain sheet material F close to the mandrel 20, so that the rectangular panel 3 is positioned at least approximately opposite the pressing surface 24. The horizontal and vertical positioning of the rectangular panel 3 with respect to the pressing surface 24 must be made as accurate as possible, but a horizontal displacement d1 and a vertical displacement d2 occur between the rectangular panel 3 and the pressing surfaces 24, 32. (See FIGS. 6A and 7A). In order to avoid folding in the wrong part of the blank F of sheet material, i.e., folding other than at the fold lines 6, 7, 13.3, another rectangular panel of plain sheet material F is folded against the rectangular panel 3. When pressed, the rectangular panel 3 is configured to be spaced from the pressing surface 24 before bending another rectangular panel (see FIGS. 6A and 7A). Then,
The rectangular panels 2 and 1, the rectangular panel 4 and the tongue piece 8 are bent, and the rectangular panel 3 is moved toward the pressing surface 24 by the pressing plate 50 (see FIG. 5). The pressing plate 50 is concave on the outside and extends in the vertical direction with respect to the mandrel 20 and can be overlapped with the rectangular pressing surface 24 of the mandrel 20 and the trapezoidal pressing surface 32 of the mandrel 20. And a mandrel 2
These surfaces 51, 52 are connected to each other via a ridge 53 that can overlap the ridge 41 connecting the zero pressing surfaces 24, 32. Therefore, the rectangular panel 3 is
4 in the direction of arrow f, the rectangular panel 4 with the rectangular panel 2 on one side and the tongue 8 on the other side.
Is mounted on the mandrel 20, thereby providing a lateral guiding action to accurately position the rectangular panel 3 laterally with respect to the pressing surface 24 (see FIG. 6C). At the same time, the trapezoidal surfaces 32, 52 exert a pressing force on the trapezoidal panel 12.3, and fold the trapezoidal panel 12.3 around a fold line 13.3 connecting the trapezoidal panel 12.3 to the rectangular panel 3. As the blank F of material is slid in the longitudinal direction, the fold line 13.3 is coincident with the ridge 41 (see FIG. 7B). When the pressing plate 50 presses the rectangular panel 3 against the pressing surface 24 (see C of FIG. 6 and C of FIG. 7), the broken lines 6, 7, 13.3 show the respective raised portions 28, 31, 41 of the mandrel 20. Exactly on top of.

Next, the blank F of the sheet material is temporarily fixed to the mandrel 20 by the pressing force applied by the pressing plate 50, and the rectangular panels 1, 2, and 4 are formed around the rectangular portion 21 of the mandrel 20. The formation of the box C can be continued by winding the tongue 8 and folding the trapezoidal panels 12.1, 12.2, 12.4 against the trapezoidal pressing surface of the pyramid-shaped part 22.

Such winding and bending press the rectangular panels 1, 2, 4 and the trapezoidal panels 12.1, 12.2, 12.4 against the pressing surfaces 26, 25, 27, 34, 33, 35 respectively. The tongue 8 is folded over the pressing surface 26 (either before or after the rectangular panel 1). Therefore, for example, the tongue 8 is fixed to the rectangular panel 1 by an adhesive, and the trapezoidal panels 12.1 to 12.4 are connected to the triangular tongue 16.
Can be fixed to each other.

Thereafter, the folded portions 14.1 to 14.4 are bent downward around the ridges on the end face 40 of the mandrel 20 corresponding to the respective folding lines 15.1 to 15.4, so that the end face 4
0 and then secured together, for example by an adhesive. Box C shown in FIG.
0, and the folded parts 10.1 to 10.4
Opened in.

For packing in box C, box C is
0 and removed as a unitary folded part 10.1-1
Box C is packed through the open bottom formed by 0.4. After the box C is packed, each broken line 11.1-1
The box C can be closed by folding the folds 10.1 to 10.4 downward around 1.4 and finally fixing the folds 10.1 to 10.4 together, for example with an adhesive. The result is the closed box shown in FIG.

The operation described above can be performed automatically by a machine schematically and partially illustrated in FIGS. This machine has a frame 60 on which the mandrel 20 and the pressing plate 50 are mounted. The machine also has a conventional type of device (not shown) suitable for removing sheet material blanks F one by one from the magazine and bringing the sheet material blanks F under the mandrel 20. The adhesive feeders 61 to 67 attached to the frame 60 act to place the linear adhesives 68 to 74 on the tongue 8, the tongue 16, the folded portions 14.2, 14.4, and a sheet material. Blank F is mandrel 20
Is located below.

Therefore, for the adhesive supply devices 61 to 67, the blank F of the sheet material coated with the adhesive is shown in FIG.
7A, below the mandrel 20 in the position shown in FIG. 7A and above the pressing plate 50 driven by the actuator 75 supported by the frame 60.

The rectangular panels 1-4 and the tongue piece 8 are connected to the mandrel 2
The movable mechanism 7 is moved up and down by an actuator 77 connected to the frame 60 in order to wrap around the rectangular portion 21 of zero.
The machine has 6.

The movable mechanism 76 has, for example, hinged arms 78 and 79 driven by a link 80 connected to the frame 60 and a cam 81 attached to the frame 60, respectively.

Actuators 82-84, eg, piston-type actuators, are mounted on frame 60 and include trapezoidal panels 12.4, 12.2, 12.1 and folds 14.4, 14.4.
It acts to bend 4.2 and 14.1 respectively. Another actuator 85 acts to fold the fold 14.3. The pressing device 8 attached to the frame 60
6, 87 are tongue pieces 8 against the pressing surface 26 of the mandrel 20.
And the rectangular panel 1 are pressed. Other pushers 88 to 91 attached to the frame 60 are provided to bend the tongue 16 with respect to the mandrel 20.

In the blank F of sheet material brought under the mandrel 20 so as to occupy the position shown in FIGS. 6A and 7A (see FIGS. 8 and 9), the actuator 7
5 and 77 are first actuated to push the pressing plate 50 to the mandrel 2.
0 and then in response to arms 78, 79 hinged to the upward actuation of the movable mechanism 76 to fold the rectangular panels 1, 2, 4 of sheet material F placed on both sides of the rectangular panel 3. You. Accordingly, the blank F of the sheet material continuously takes the position with respect to the mandrel 20 shown in FIGS. 6A, 6B, 6C, 7A, 7B, and 7C. Thereafter, as the movable mechanism 76 continues to move upward, the rectangular panels 1, 2, 4 are respectively moved to the arms 78, 79 against the corresponding pressing surfaces of the mandrel 20.
Is pressed (see FIG. 11).

Actuators 82-84 are trapezoidal panels 12.2,
12.1, 12.4 and folded parts 14.2, 14.1, 1
4.4 is folded (see FIGS. 12 and 13), and another pressing device 8 is pressed.
After the 7 presses the rectangular panel 1 against the tongue 8 and the pressing surface 26, the press 86 presses the tongue 8 against the pressing surface 26 of the mandrel 20 (FIG. 11). Linear adhesive 68, 7
For 3, 74, the rectangular panel 1 is fixed to the tongue 8,
The folds 14.1, 14.2, 14.4 are fixed to one another (see FIGS. 12, 13).

Thereafter, the actuators 85, 88 to 91 bend the folded portion 14.3 and the tongue piece 16 against the pressing surface 40 and the pressing surfaces 32, 34 at the end of the mandrel 20, respectively.
Due to the linear adhesives 69-72, 73, 74, the tongue 1
6 is fixed to the folded portions 12.1, 12.3, and the folded portion 14.3 is fixed to the folded portions 14.1, 14.2, 14.4.

[Brief description of the drawings]

FIG. 1 shows a flat blank of sheet material for making an embodiment of a box according to the invention.

FIG. 2 is a perspective view of a box made from the blank of FIG. 1 in an open state.

FIG. 3 is a perspective view of a box made from the blank of FIG. 1 in a closed state.

FIG. 4 is a longitudinal section showing one way in which the boxes of FIGS. 2 and 3 can be used.

FIG. 5 is a perspective view of a mandrel and a pressing plate for manufacturing the box of the present invention.

FIG. 6 is a cross-sectional view of a rectangular portion of the mandrel showing a step of manufacturing the box of the present invention from the blank of FIG. 1;

FIG. 7 is a longitudinal sectional view of a mandrel showing a step of manufacturing a box of the present invention from the blank of FIG. 1;

FIG. 8 is an elevational view showing one of the box manufacturing steps of the machine for making boxes of the present invention from the blank of FIG.

FIG. 9 is a plan view corresponding to FIG.

FIG. 10 is a side view perpendicular to FIG. 8 and corresponding to FIG. 9;

FIG. 11 is an elevation view showing another one of the box manufacturing steps of the machine for manufacturing the box of the present invention from the blank of FIG. 1;

FIG. 12 is a plan view corresponding to FIG. 11;

13 is a side view perpendicular to FIG. 11 and corresponding to FIG. 12;

FIG. 14 is an elevational view showing another one of the box manufacturing steps of the machine for making boxes of the present invention from the blank of FIG. 1;

FIG. 15 is a plan view corresponding to FIG.

16 is a side view perpendicular to FIG. 14 and corresponding to FIG. 15;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 rectangular panel 2 rectangular panel 3 rectangular panel 4 rectangular panel 5 broken line 6 broken line 7 broken line 8 tongue piece 9 broken line 10.1 rectangular folded portion 10.2 rectangular folded portion 10.3 rectangular folded portion 10.4 rectangular folded portion 11.1 Broken line 11.2 broken line 11.3 broken line 11.4 broken line 12.1 trapezoidal panel 12.2 trapezoidal panel 12.3 trapezoidal panel 12.4 trapezoidal panel 13.1 polygonal line 13.2 polygonal line 13.3 polygonal line 13.4 polygonal line 14 .1 Rectangular folded part 14.2 Rectangular folded part 14.3 Rectangular folded part 14.4 Rectangular folded part 15.1 Folded line 15.2 Folded line 15.3 Folded line 15.4 Folded line 16 Triangular tongue

Continuation of the front page (56) References JP-A-58-11647 (JP, A) JP-A-59-30820 (JP, U) US Patent 5064113 (US, A) US Patent 5,326,024 (US, A) (58) Field surveyed (Int.Cl. ⁷ , DB name) B65D 5/02-5/16

Claims (12)

(57) [Claims] 1. A blank for making a box made of a sheet material such as cardboard or corrugated paper and formed by joining parallelepipeds to a bottom of a quadrangular pyramid, wherein three first polygonal lines parallel to each other are provided. Four first rectangular panels (1 to 4) connected to each other by (5 to 7), and four first rectangular panels located on one side of the connected first rectangular panels and perpendicular to the first polygonal line. 2 broken lines (11.1 to 1
1.4) four first folded portions (10.1 to 10.4) respectively connected to the corresponding first rectangular panels and forming at least a part of the bottom of the box, and the first folded portion The first rectangles are located on the side of the first rectangular panel opposite to the first rectangle, and respectively correspond to four third polygonal lines (13.1 to 13.4) perpendicular to the first polygonal line via the bottom side thereof. A blank comprising four trapezoidal or triangular second panels (12.1 to 12.4) connected to a panel, wherein the oblique sides of the second panel are separated from each other. 2. At least some of the second panels have a triangular tongue (16) connected to the panel via a fold line, the triangular tongues along at least one hypotenuse of the second panel. The blank according to claim 1, wherein the blank is bendable. 3. The second panel has a trapezoidal shape, and has four second folded portions (14.1 to 14.4) connected to a top edge of the second panel by a fourth folded line perpendicular to the first folded line. The blank according to claim 1, wherein the second fold forms at least a portion of a surface closing the box. 4. A rectangular pyramid made from the blank of claim 1 and having four rectangular sides connected in pairs by parallel polygonal lines, the remaining four sides excluding these rectangular sides. Forming a box, wherein said rectangular sides form a parallelepiped connected to the bottom of said quadrangular pyramid, said remaining four sides being formed by a panel having hypotenuse parts separated from each other in said blank state A box characterized by being made. 5. The device according to claim 4, further comprising a tongue for forming a seal along a side edge of the quadrangular pyramid.
Box of description. 6. The box according to claim 4, wherein the remaining four sides are triangular. 7. The box according to claim 4, wherein the remaining four side surfaces are trapezoidal. 8. The box according to claim 7, wherein a surface for closing a top of the quadrangular pyramid is provided on an opposite side of the parallelepiped. 9. Three first polygonal lines (5 to 5) parallel to each other
7), four first rectangular panels (1 to 4) connected to each other by four connected second rectangular lines (1 to 4) located on one side of the connected first rectangular panels and perpendicular to the first polygonal lines. 11.1-1
1.4), four first folded portions (10.1 to 10.2) connected to the corresponding first rectangular panels, respectively.
4), four third folding lines (13.1 to 13...) Located on the side of the first rectangular panel opposite to the first folding portion and perpendicular to the first folding line via the bottom. 4) four trapezoidal or triangular second panels (12.1 to 12.4) connected to the corresponding first rectangular panels, respectively, wherein the oblique sides of the second panels are separated from each other. A box making machine for making a box from blanks of sheet material, the box corresponding to the inside of the box to be obtained by the outside,
(2) a mandrel (20) in the form of a rectangular parallelepiped (21); an intermediate panel (3) of the first rectangular panels (1-4); and a second panel (12) adjacent to the intermediate panel. .1 to 1
Press plate (50) supporting one of (2.4)
Moving the pressure plate towards the mandrel to move the intermediate panel (3) and one of the second panels adjacent to the intermediate panel (12.3) to the corresponding surface (24, 32) of the mandrel. Means for pressing the first rectangular panel around the mandrel, respectively; means for winding the first rectangular panel around the mandrel; and end panels of the first rectangular panel when the first rectangular panel is wound around the mandrel. Means (86, 87) for fixing (1, 4) to each other; and the remaining second panel (12.12) on the corresponding surface (33, 34, 35) of the truncated pyramid (22) of the mandrel.
(12.2, 12.4).
, 84), and the second panels (12.1 to 12...) Adjacent to each other when the second panel is pressed against the mandrel.
Means (88, 89, 90, 91) for fixing the pressure plate (50), and wherein the pressing plate (50) has two firmly connected surfaces (5
1, 52), wherein a first surface (51) of the two surfaces of the pressing plate corresponds to the intermediate panel (3), and a second surface (52) is a second surface adjacent to the intermediate panel. A second surface (52) corresponding to one of the panels (12.3), when the first surface (51) is pressed against the corresponding surface (24) of the parallelepiped (21) of the mandrel. Is pressed against one of the surfaces (32) of the pedestal (22) of the mandrel corresponding to the adjacent second panel, and the intersection (53) of the first and second surfaces (51, 52). Are mandrel surfaces corresponding to the parallelepiped and the pedestal, respectively (24, 32)
Box making machine characterized by the fact that it coincides with a ridgeline (41) between the two. 10. At least some of the second panels have bendable triangular tongues (16) along at least one of the free sloping edges, each tongue corresponding via a respective fold line. Means (88, 89, 90, 9) for securing said second panel together for a blank connected to the two panels.
1) means (88, 8) for bending the triangular tongues (16) and fixing them to the second panel supporting these tongues
10. The box making machine according to claim 9, comprising: (9, 90, 91). 11. A fourth panel having a trapezoidal second panel disposed adjacent a small base of the second panel and perpendicular to the first fold line.
Mandrel for a blank having a second fold (14.1 to 14.4) connected to a second panel by a fold line (15.1 to 15.4) and forming at least a part of the closed surface of the box Means (82, 83, 84, 85) for folding the second folded portion (14.1 to 14.4) with respect to the end surface (40) of the base portion (22) of the base member (22); 10. A box making machine according to claim 9, further comprising means for securing the parts together. 12. A first continuous body around said mandrel.
The means (76) for winding the panel includes a swing arm (78, 7).
The box making machine according to claim 9, further comprising a moving device having the configuration (9).