KR20100086966A - Corrugated board packing box - Google Patents

Abstract

PURPOSE: A corrugated board packing box is provided to enable a user to load products on multiple stages of the corrugated board packing box and to enable the user to easily carry each corrugated board packing box in which heavy products are loaded. CONSTITUTION: A corrugated board packing box comprises: a bottom; four wall sides(6,8,10,12) which are formed by folding the bottom upward; and left and right roof portions(14) which are extended by being folded from left and right wall sides. A slop plane(14a) and a horizontal plane(14b) are formed on the left and right roof portions. A handle strip(50) is combined with the slope plane.

Description

Corrugated cardboard packing box {CORRUGATED BOARD PACKING BOX}

The present invention relates to a packaging box, in particular, to allow the storage of some heavy loads, such as fruits and vegetables, and can be multi-stage stacking during transport or storage, as well as improved structure to facilitate the individual carrying a box individually It relates to a cardboard packaging box.

In general, corrugated packaging boxes that hold some heavy loads, such as grapes, oranges, apples, pears and other fruits and vegetables, are convenient for distribution because they can be stacked in multiple stages during transportation or storage. If the corrugated packing box is not multi-stacked, there is considerable difficulty in mass storage and transportation. Even if the multi-stacked form is possible, its own rigidity is weak, and even if there is a deformation of the shape, such as crushing during multi-stage loading, the fruits and vegetables stored inside are damaged. It can cause it to rot or lower its value.

As a result, corrugated packaging boxes have been developed and distributed in the market, which have no problem in storing or transporting them in a multi-stacked state due to the reinforced durability of the corrugated packaging boxes, but these cardboard packaging boxes have a form in which the upper side of the box body is completely open. It is inconvenient for an individual to carry a box individually, and it is not suitable to be used as a packing box that can be easily carried with one hand.

In particular, if there are not many family members like these days, the fruits and vegetables are spoiled before they are eaten out of the box, or they are eaten in a fresh state even if they are kept in the refrigerator, so a small packing box is required. If an individual is designed to be easily carried with one hand, it will be well received by the end consumer or distributor.

Therefore, an object of the present invention is to allow the storage of a heavier weight load, such as fruits and vegetables, and to be multi-stage stacking when transporting or storing, as well as to improve the structure easy to carry around the individual carrying the box containing the load individually To provide a cardboard packaging box.

Another object of the present invention is to provide a cardboard packaging box that is convenient to carry with a multi-stage stacking or one hand as well as to implement in a small packaging unit that is easy to present.

According to the above object, the present invention, in the corrugated cardboard packaging box, by cutting the corrugated cardboard and forming a folding line to form an integral box main plate material (2) and to form a center bottom portion (4) The front and rear right and left wall portions 6, 8, 10, 12 and the roof portion 14 are formed by folding the four sides, and the front and rear wall portions 6 and 8 are extended from the bottom portion 4 back and forth. Fold the front and rear extension to form double wall plates 6a, 6b (8a, 8b), and at the same time, the double wall plates 6a, 6b (8a, 8b) have a downward inclined top side 22 on the left and right of the central horizontal upper side 20. It is configured to be formed, the left and right wall surface portion 10, 12 has an assembly wing having a central upper side 26 connected to one side inclined upper side 24 of the upper side at the front and rear ends of the left and right extension portion extended from the bottom portion 4 to the left and right sides. (10a) (12a) is extended so that the assembling blades (10a) and (12a) are assembled so as to fit between the double wall plates (6a, 6b) (8a, 8b) of the front and rear wall portions (6) and (8), From left and right wall portions (10, 12) The elongated roof portion 14 is formed by partitioning the inclined surface portion 14a and the horizontal surface portion 14b connected to the inclined surface portion 14a by a fold line F8 so that both edges of the inclined surface portion 14a are assembled before and after. The left and right inclined upper sides 22 of the wall surfaces 6 and 8 and the inclined upper sides 24 of the assembly wings 10a and 12a of the left and right wall surfaces 10 and 12 are mounted. Both edges are configured to be mounted on the horizontal upper side 20 of the front and rear wall portions 6 and 8, and the fastening holes 18 for the handle straps are formed in the left and right inclined surface portions 14a of the roof portion 14. It features.

In addition, the present invention is a wing type that is folded by a fold line (F10) on the left and right sides of the outer wall plate (6a) (8a) of the double wall plate (6a, 6b) (8a, 8b) of the front and rear wall surface (6) (8). The reinforcing engagement piece 28 is extended to form a corresponding slit-shaped hook hole 29 on the left and right sides of the left and right wall surfaces 10 and 12, and the front and rear left and right wall surfaces 6, 8 and 10 ( 12) When assembling reinforcing hook piece (28) is characterized in that it is configured to be locked to fit in the hook hole (29).

 Further, in the present invention, the lower side of the assembling blades 10a and 12a of the left and right wall surfaces 10 and 12 is a fold line F3 (F4) between the bottom portion 4 and the left and right wall surfaces 10 and 12. ) And parallel to the fold line (F3) (F4) is formed by the bottom side 30 is raised by 5-25mm spacing (t), the lower side 30 and the upper side of the lower side of the assembled wing (10a) (12a) The height width between the center upper side 26 is characterized by forming the same as the height width of the front and rear wall portions (6) (8).

In another embodiment of the present invention, a fold line between the bottom portion 4 and the left and right wall surfaces 10 and 12 is provided on the lower side of the assembly wings 10a and 12a of the left and right wall surfaces 10 and 12. In the F3) (F4) is formed an inclined bottom side having an inclination angle (x) of 1 ~ 10 °, the central upper side 26 of the upper side of the assembling blades (10a, 12a) is the inclined bottom side (30) and Characterized in that the formed parallel to the inclined upper side.

In addition, in the present invention, each horizontal surface portion 14b of the left and right roof portion 14 is overlapped with the left and right overlapping portion 16 is formed, the overlapping portion 16 is formed with the fitting portion 32 to be mutually assembled At the left and right ends of the overlapping portion, the engaging stone piece 16a, which is caught after being fitted into the center fitting groove 34 of the front and rear wall portions 10 and 12, is partitioned by a fold line F9, and the left and right roof portions 14 Each inclined surface portion 14a forms a pair of fastening holes 18 so that the strap 50 is coupled to the fastening hole 18 pair.

In the present invention, the double wall plates 6a, 6b and 8a and 8b of the front and rear wall surfaces 6 and 8 are partitioned off by the fold lines F5 and F6, and the double wall plates 6a and 6b ( Insertion protrusions 34 are formed at the upper edges of the inner wall plates 6b and 8b of 8a and 8b so that the insertion protrusions 34 are inserted into and fixed to the coupling holes 36 formed in the bottom portion 4, right and left. The assembling blades 10a and 12a of the wall portions 10 and 12 are sandwiched between the double wall plates 6a and 6b and 8a and 8b of the front and rear wall portions 6 and 8 to extend to overlap. It features.

In addition, in the present invention, the "U" shaped cutting line 46, which starts from the outer fold line F5 to the central horizontal upper side 20 of the front and rear wall portions 6 and 8 and goes back beyond the inner fold line F6, enters again. The bottom portion of the packing box having an upright fitting support piece 48 formed by folding the folding lines F5 and F6, and the fitting support piece 48 is placed on the upper part when the packing boxes are stacked in multiple stages. It is characterized in that it is configured to fit in the cut hole 40 formed in the outer wall plate (6a) (8a) of the double wall plate (6a, 6b) (8a, 8b) in contact with the fold line (F1) (F2).

Further, in the present invention, the inner wall plate of the double wall plate 6a, 6b (8a, 8b) in contact with the cutout hole 40 of the outer wall plate 6a, 8a of the double wall plate 6a, 6b (8a, 8b). 6b, 8b and left and right wall portions 10 and 12, the assembling blades 10a and 12a are characterized in that the cutting grooves 42 and 44 are respectively formed.

In addition, the present invention, in the corrugated cardboard packaging box, the bottom portion 4, the front and rear left and right wall portions 6, 8, 10, 12, and the left and right wall surfaces formed by folding the bottom portion 4 on all sides. It has a left and right roof portion 14, which is formed by folding in portions 10 and 12, and the front and rear wall portions 6 and 8 are formed of two or more corrugated cardboards, and the inclined surface portion 14a is formed on the left and right roof portions 14. ) And the horizontal surface portion 14b connected to the inclined surface 14a are respectively formed, and each inclined surface portion 14a is characterized by being configured by binding the strap 50.

The present invention allows the storage of some heavy loads, such as fruits, grapes, oranges, apples, pears, etc., and can be multi-stage stacking when transporting or storing, as well as individually carrying a packing box containing the loads. There is an easy advantage. In addition, the present invention is capable of multi-stage stacking of the cardboard packaging box as a small packaging unit to present as well as convenient to carry a single packaging box, the user can easily carry around with one hand, and has a good advantage for gifts.

1 is a development view of a cardboard packing box according to an embodiment of the present invention,
2 to 6 is a procedure of assembling the cardboard packaging box according to an embodiment of the present invention,
7 is a perspective view of the completed cardboard packaging box assembled in accordance with an embodiment of the present invention,
Figure 8 is a state loaded with a multi-stage cardboard packaging box of the present invention,
9 is a development of the cardboard packaging box according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded view of a cardboard packaging box according to an embodiment of the present invention, Figures 2 to 6 is a procedure of assembling the cardboard packaging box according to an embodiment of the present invention, Figure 7 is according to an embodiment of the present invention A perspective view of an assembled cardboard packaging box.

Corrugated cardboard packaging box (A) is assembled according to an embodiment of the present invention, as shown in Figure 7, the bottom portion 4, the front and rear left and right wall surface portion 6 is formed by folding the four sides of the bottom portion (4) (8) (10) (12) and the left and right roof portions (14) folded up from the left and right wall portions (10) and (12), and the front and rear wall portions (6) and (8) are made of three layers of corrugated cardboard. The left and right roof portions 14 each have an inclined surface portion 14a and a horizontal surface portion 14b connected to the inclined surface portion 14a, respectively, and each strap surface 14a has a hand strap 50. The main feature is that the connection is made by binding.

Corrugated cardboard packaging box (A) of the present invention cut the corrugated cardboard as in the development view of Figure 1 to form a fold line (F1) to (F9) to form an integral box main plate material (2).

The box main plate 2 is largely formed by a plurality of fold lines F1 to F9, and the center bottom portion 4, the front and rear right and left wall portions 6, 8, 10, 12, and the left and right roof portions 14 It is made up of compartments. The fold lines F1 to F9 are formed to be easily bent or folded through the pressing of a blunt press blade.

The box main plate material 2 has a front and rear extension part extended back and forth at the bottom part 4 and a left and right extension part extended at the bottom part 4 together with the center bottom part 4. Folded lines F1 to F4 are formed on all sides of the central bottom portion 4, and the front, rear, left, and right wall surfaces 6, 8, 10, 12, and the left and right roof portions 14 are formed by the front, rear, left, and right extensions. ) Is configured.

The front and rear wall portions 6 and 8 are formed by folding the front and rear extensions extended back and forth at the bottom portion 4, and folding the front and rear wall portions by the fold lines F1 and F2 between the bottom portion 4 and the front and rear extensions and extending back and forth. Double wall plates 6a, 6b (8a, 8b) are formed by first folding inside and then down using the outer and inner fold lines (F5) (F6) formed parallel to and adjacent to each other left and right in the part. Configure. At the same time, each of the double wall plates 6a, 6b, 8a, and 8b constituting the front and rear wall portions 6 and 8 has a central horizontal upper side having a predetermined area by outer and inner fold lines F5 and F6. 20 is formed, and left and right downward inclined upper sides 22 having a predetermined area are formed on left and right sides of the central horizontal upper sides 20 by inclined cutting lines. The central horizontal upper side 20 and the downward inclined upper side 22 successively formed on the left and right sides are portions on which both side edges of the horizontal surface portion 14b and the inclined surface portion 14a constituting the left and right roof portions 14 are placed.

The width between the outer and inner fold lines F5 and F6 in the double wall plates 6a and 6b and 8a and 8b of the front and rear wall portions 6 and 8 is assembling the left and right wall portions 10 and 12 therein. It is preferable that the wings 10a and 12a are formed to be overlapped and tightly fitted. Accordingly, the central horizontal upper side 20 has a narrow upper support surface that is as narrow as the width and the length of the length between the outer and inner fold lines F5 and F6, and are folded to face each other by being folded by the outer and inner fold lines F5 and F6. Assembled blades 10a and 12a of the left and right wall surface portions 10 and 12 to be described later are sandwiched between the double wall plates 6a and 6b and 8a and 8b. The front and rear wall portions 6 and 8 have a corrugated quadruple structure, so that they have durability enough to withstand the multi-stage stacking in the loaded state.

In addition, the left and right insertion protrusions 34 are formed on the upper edges of the inner wall plates 6b and 8b of the double wall plates 6a and 6b and 8a and 8b of the front and rear wall surfaces 6 and 8 through the cutting line 48. Forming the left and right coupling holes 36 through the foundation in the bottom portion 4 formed at the same time and connected to the upper and lower fold lines F1 and F2 of the bottom portion 4, respectively. When assembling 8a, 8b, the left and right insertion protrusions 34 are fitted into the left and right coupling holes 36 of the bottom portion 4 to form a solid double wall plate 6a, 6b (8a, 8b) structure.

In particular, in the present invention, the assembling blades 10a and 12a of the left and right wall surfaces 10 and 12 to be described later are sandwiched between the double wall plates 6a and 6b and 8a and 8b of the front and rear wall surfaces 6 and 8. Since they are overlapped enough to overlap each other and are formed to extend in a long length, a double wall is formed between the double wall plates 6a and 6b and 8a and 8b, and the left and right wall surfaces 10 and 14 are almost four. This ensures heavy, durable sidewalls nested in the middle. Therefore, the front and rear wall portions 6, 8 of the double wall structure and the double wall plates 6a, 6b (8a, 8b) of the assembled blades 10a and 12a inserted inside are grape, orange, Even if a heavy weight load such as apples and pears is stored in a heavy load for storing a vehicle or unloading, it is able to withstand the load.

In the present invention, in forming the front and rear wall portions 6 and 8, the inner fold line F6 is formed on the central horizontal upper side 20 of the front and rear wall portions 6 and 8 starting from the outer fold line F5. An upright fitting formed as shown in FIG. 5 by forming a "U" shaped cut line 46 extending over and extending back to the outer fold line F5 as shown in FIG. 1, and folding the fold lines F5 and F6. The support piece 48 is provided. The fitting support 48 of the front and rear wall portions 6 and 8 is a folding line of the bottom portion 4 of the packing box A, which is placed on the top when the packing box A is stacked in multiple stages as shown in FIG. 8. (F1) (F2) respectively formed on the outer wall plate (6a) 8a and the inner wall plate (6b) (8b) of the double wall plate (6a, 6b) (8a, 8b) and the assembly wing (10a) (12a) By being configured to be inserted into the cut-out hole 40 and the cut-out grooves 42 and 44, the multi-stacked packing boxes A are held so as not to shake or fall even in the slightest external impact. When the front and rear wall portions 6 and 8 are assembled in a quadruple structure, the cutting holes 40 and the cutting grooves 42 and 44 coincide with each other and the cutting grooves 42 and 44 are cut holes 40. It is formed deeper than) to allow the fitting support 48 of the front and rear thin surface portion 6, 8 of the cardboard packing box (A) at the bottom of the multi-stage loading to be easily inserted.

In assembling the front, rear, left, and right wall surfaces 6, 8, 10, and 12 of the present invention, the double wall plates 6a, 6b, 8a, 8b of the front, back, wall surfaces 6, 8 are more preferable. The wing-shaped reinforcing catching piece 28 folded by the fold line F10 on the left and right sides of the outer wall plates 6a and 8a is extended to form a corresponding slit on the left and right sides of the left and right wall surfaces 10 and 12. It is to form the type hanger (29). In addition, if necessary, the insertion grooves 29a having the same shape as the hook holes 29 may be formed on the left and right sides of the inner wall plates 6b and 8b so that the reinforcing locking pieces 28 can be inserted more easily.

The configuration of the reinforcing hook piece 28 and the corresponding hook hole 29 includes the reinforcing hook piece 28 of the front and rear wall parts 6, 8, 10, and 12 when assembled. It is fitted into the hook hole 29 of the left and right wall surfaces 10 and 12 so as to be locked so that it is stiff at the tangential portion where the front and rear wall surfaces 6, 8 and the left and right wall surfaces 10, 14 meet during assembly. And prevents or minimizes the spreading that may be caused by the bending resistance caused by thick cardboard properties.

Meanwhile, the left and right wall surfaces 10 and 12 of the box main plate material 2 have assembling wings 10a and 12a extending at front and rear ends of the left and right extension portions extending from the bottom portion 4 to the left and right extension portions. 10a) 12a has a length corresponding to the length of the front and rear extension extending from the bottom 4 to constitute the front and rear wall portions 6 and 8.

The assembly wings 10a and 12a of the left and right wall surfaces 10 and 12 have the same structural features as those of the embodiment of the present invention as shown in FIG. 1 or other embodiments of the present invention as shown in FIG.

More specifically, as shown in FIG. 1, the assembling blades 10a and 12a of the left and right wall surfaces 10 and 12 have a lower side bottom portion 4 and a left and right wall surface portions 10 and 12 as shown in FIG. 1. ) Is formed in parallel with the fold line (F3) (F4) between the fold line (F3) (F4) and raised by 5 to 25mm gap (t) from the fold line (F3) (F4), and the assembling wing (10a) (12a) The height width between the lower side 30, which is the lower side, and the center upper side 26 of the upper side, has a characteristic configuration that is formed equal to the height width of the front and rear wall portions 6,8.

In another embodiment of the present invention, assembling blades 10a and 12a of the left and right wall surfaces 10 and 12 have a bottom side 4 and a left and right wall surface portions 10 and 12 as shown in FIG. It has a structural feature such that the inclined bottom side 30 having an inclination angle x of 1 to 10 ° is formed at the fold line F3 (F4).

The base 30 is formed by raising the assembled wings 10a and 12a of the left and right wall portions 10 and 12 by 5 to 25 mm, or alternatively, the upper and lower sides 1 to 10 degrees. The reason for forming the inclined side having the inclination angle x is as follows.

Due to the nature of the thick cardboard, the long left and right wall portions 10 and 12, which are assembled, are folded and folded up by the fold lines F3 and F4, but they do not remain perpendicular to the bottom portion 4 and slightly open to the left and right. The phenomenon occurs naturally. However, in the present invention, as shown in FIG. 4, as shown in FIG. 5, the central upper side 26 and the inclined bottom side 30 are arranged on the upper and lower sides of the assembly wings 10a and 12a of the left and right wall surfaces 10 and 12. Since it has a gentle inclination, the center horizontal upper side 20 which connects each double wall board 6a, 6b (8a, 8b) of the front-back wall part 6, 8 by this is left and right wall part 10, 12 When pressing the assembly wing (10a) (12a) of the left and right wall portion (10) (12) so as to retract inwards by a distance (t) or 1 to 10 ° inclination angle with the bottom portion (4). As a result, the left and right wall portions 10 and 12, which are bent to the assembling blades 10a and 12a, overcome the left and right openings and stand perpendicular to the bottom portion 4 as shown in FIG.

In addition, the upper side of the assembly wing (10a) (12a) of the left and right wall surface portion 10, 12 is formed on the one side or left and right side of the central upper side 26, the inclined upper side (24) successive. In this case, the central upper side 26 of the upper side of the assembly wings 10a and 12a is inclined with the lower side 30 constituting the lower side as mentioned in the other embodiment of FIG. It is preferable to form in parallel inclined sides. This means that the free end side of the lower side far from the root touches the bottom part 4 from the assembling blades 10a and 12a of the left and right wall surfaces 10 and 12 at the time of assembly so that the lower side is inclined as a whole and the upper side 26 of the upper side 26 Is to form a horizontal line parallel to the bottom (4) surface.

The assembling blades 10a and 12a of the left and right wall surfaces 10 and 12 as described above are assembled to fit between the double wall plates 6a and 6b and 8a and 8b of the front and rear wall surfaces 6 and 8, respectively. The left and right roof portions 14 extending from side to side in the left and right wall surface portions 10 and 12 are horizontal surface portions 14b connected to the inclined surface portion 14a and the inclined surface portion 14a by a fold line F8. ) Has a compartmentalized configuration.

In the inclined surface portion 14a and the horizontal surface portion 14b constituting the left and right roof portions 14, the horizontal surface portion 14b is formed to be relatively wider than the inclined surface portion 14a, thereby ensuring horizontal safety. have. However, if the inclined surface portion 14a is formed too narrow, the two hand straps 50 respectively bound to the left and right roof parts 14 may be too far apart, and the hand straps 50 may be lifted from each other when carrying. The force is reduced so that the cover of the left and right roofs 14 may be accidentally opened.

Both side edges of the inclined surface portion 14a in the left and right roof portions 16 are assembled of the assembled front and rear wall portions 6 and 8 and the left and right wall portions 10 and 12 fitted in the front and rear wall portions 6 and 8. It is mounted on the inclined upper sides 22 and 24 of the wings 10a and 12a, and the horizontal upper sides 20 of the front and rear wall portions 6 and 8 of both sides of the horizontal surface portion 14b in the left and right roof portions 16. Configure to be placed on.

In the embodiment of the present invention, each of the left and right inclined surface portions 14a of the roof portion 14 has a pair of fastening holes for handle straps 18, and the fastening holes 18 for handle straps are made of fiber or resin straps. (50) is configured to be bound.

In addition, the horizontal portions 14b of the left and right roof portions 14 have overlapping portions 16 overlapping the left and right sides, and the overlapping portions 16 are fitted to each other in an overlapping structure with a long engagement stone piece and a coupling groove structure. The portion 32 is formed, and the left and right ends of the overlapping portion 16 are partitioned by the fold line F9, and the collapsible locking piece 16a is extended. The engaging stone piece and the coupling groove of the fitting portion 32 in the overlapping portion 16 are means for locking the left and right roof portions 16 to each other after they are fitted with each other after the load, and have a protruding structure that is well engaged on both sides of the engaging stone piece. It is preferably formed. In addition, the engaging stone pieces 16a formed at the left and right ends of the overlapping portion 16 are also bent at the overlapping portion 16 and then fitted into the center fitting grooves 49 formed at the front and rear wall portions 10 and 12 to be caught. As a means, it is preferable to form a locking groove jaw on the inner side of the locking piece 16a so that the locking is easy.

Corrugated packaging box (A) of the present invention having the structure as described above is assembled to the state in which the left and right roofs 16 are opened as shown in FIG. 5, and as shown in FIG. Do it.

In Fig. 1, the holes in which the reference numerals or signs are not indicated in the box body 2 are generally air holes.

Manufacturers in the corrugated cardboard packaging box (A) of the present invention as shown in Figure 7, and then hung up to the strap 50 in the development state as shown in Figure 1, box users, such as farmers and distributors, the handle strap 50 The hanging packing box (A) is assembled in the same manner as in Figs. 1 to 5, and then put a heavy weight load such as fruits and vegetables such as grapes, oranges, apples and pears. After that, cover the left and right roof 16, and assembled as shown in Figs.

Such a cardboard packaging box (A) is not a problem even if stacked multi-stage for transport or storage as shown in FIG. That is, due to the corrugated quadruple structure of the front and rear wall portions 6 and 8, the durability is very good. Even though the roof portion 16 has the inclined surface portion 16a, the horizontal upper surface 16b is sufficiently secured to maintain the safety of the multi-stage stacking. do. In particular, the contents of the corrugated cardboard packaging box (A) of the present invention has a lot of moisture as fruits and vegetables, and the wet state or a portion of the packaging box (A) is somewhat wet to rainwater after being stacked in a vehicle and covered with a packaging cover for the vehicle loading part. Even if the packaging box (A) of the present invention is able to maintain safety enough to safely protect its contents.

In addition, the cardboard packaging box (A) of the present invention, the end consumer purchases a load, such as fruit contained in a cardboard packaging box (A) displayed in a store or department store, a grocery store in the unit of a box, the hand strap 50 with one hand It is very easy to hold and carry around.

When holding the handle strap 50, even if you carry the cardboard packing box (A) containing the load in the individual box unit, the two straps 50 on the inclined surface portion (14a) of the left and right roof 14 is one As it is collected, the cover of the horizontal surface portion 14b of the left and right roof portions 14 does not open upward and is easy to carry around by acting inwardly.

Furthermore, since the cardboard packaging box (A) of the present invention is manufactured in a small packaging unit (for example, stacking apples on a single layer) that accommodates a smaller capacity than a typical cardboard apple box, it is good for gifts or carrying with one hand when presenting. It is very convenient.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be defined by the claims and their equivalents.

(A)-cardboard box (2)-box body
(4)-Bottom (6) (8) (10) (12)-Front, back, left, right wall
(10a) (12a)-Assembly wing (14)-Roof part
(14a)-sloped surface (14b)-horizontal surface
(16)-overlap (18)-fastener
(20)-horizontal top side (22)-inclined top side
(24)-Slope Top (26)-Center Upper Side
(30)-Bottom slope (32)-Fitting
(48)-Fitting piece (50)-Hand strap

Claims (10)

In the cardboard packaging box,
Corrugated cardboard is cut and folded to form an integrated box main plate member 2, and the four sides of the central bottom portion 4 constituting the box main plate member 2 are folded up to front, rear, left and right wall surfaces 6, 8 (10) (12) and the roof portion 14, but the front and rear wall portions (6) and (8) fold the front and rear extension portions extended back and forth at the bottom portion (4), double wall plates (6a, 6b) (8a, 8b) ) And at the same time, each of the double wall plates (6a, 6b) (8a, 8b) is formed such that the downward inclined upper side 22 is formed on the left and right of the central horizontal upper side 20, the left and right wall surface portions (10, 12) Is formed by extending the assembly wings (10a) (12a) having a central upper side (26), which is connected to one side inclined upper side (24) of the upper side on the front and rear ends of the left and right extension portion extended from the bottom (4) to the assembly wing (10a) 12a is assembled so as to be sandwiched between each of the double wall plates 6a, 6b, 8a, and 8b of the front and rear wall portions 6 and 8, and extends from side to side in the left and right wall portions 10 and 12. The roof portion 14 is inclined with the inclined surface portion 14a by the fold line F8. A horizontal surface portion 14b connected to the slope portion 14a is partitioned so that both edges of the inclined surface portion 14a are inclined to the left and right inclined upper sides 22 and the left and right wall surface portions 10 of the assembled front and rear wall portions 6 and 8. 12) is mounted on the inclined upper side 24 of the assembly wing (10a) (12a) and both side edges of the horizontal surface portion 14b is configured to be mounted on the central horizontal upper side 20 of the front and rear wall portions (6) (8). , Corrugated cardboard packaging box, characterized in that the left and right inclined surface portion (14a) of the roof portion 14 is configured to form a fastening hole for the handle straps (18).
The lower side of the assembling blades 10a and 12a of the left and right wall surfaces 10 and 12 is a fold line F3 between the bottom portion 4 and the left and right wall surfaces 10 and 12. The bottom side 30 parallel to F4) and raised by 5 to 25 mm spaced distance t from the fold line F3 (F4) is formed, and the bottom side 30 and the bottom side 30 of the assembly wings 10a and 12a are upper side. Corrugated cardboard packaging box, characterized in that the height width between the center upper side (26) of the side is formed equal to the height width of the front and rear wall portion (6) (8).
The fold line F3 between the bottom portion 4 and the left and right wall portions 10 and 12 on the lower side of the assembling blades 10a and 12a of the left and right wall portions 10 and 12. In the F4), the inclined bottom side 30 having an inclination angle x of 1 to 10 ° is formed, and the central upper side 26 of the upper side of the assembled wings 10a and 12a is inclined in parallel with the inclined bottom side 30. Cardboard packaging box characterized in that formed on the upper side.
The fold line according to any one of claims 1 to 3, wherein the fold line is formed on the left and right sides of the outer wall plates 6a and 8a of the double wall plates 6a and 6b and 8a and 8b of the front and rear wall surfaces 6 and 8. The blade-shaped reinforcing engagement piece 28 folded in (F10) is extended to form a corresponding slit-shaped hook hole 29 on the left and right sides of the left and right wall surfaces 10 and 12, and the front and rear, right and left wall surfaces 6 ) (8) (10) (12) Corrugated cardboard packaging box characterized in that the reinforcing hook piece (28) is fitted to the hook hole (29) is configured to be locked.
The horizontal portion 14b of the left and right roof portions 14 includes overlapping portions 16, which overlap each other, and are overlapped with each other. The fitting portion 32 is formed, and the engaging stone piece 16a, which is caught after being fitted into the center fitting groove 34 of the front and rear wall portions 10 and 12, is partitioned by the fold line F9 at both left and right ends of the overlapping portion. , Corrugated cardboard packaging box, characterized in that the handle strap 50 is configured to bind to the fastening holes (18) pair by forming a fastening hole (18) pair in each inclined surface portion (14a) of the left and right roof portion (14).
The double wall plates 6a, 6b, 8a, 8b of the front and rear wall surfaces 6, 8 are partitioned off by fold lines F5, F6, according to any one of claims 1 to 3, Coupling hole 36 having an insertion protrusion 34 formed on the bottom portion 4 by forming an insertion protrusion 34 on the upper edge of the inner wall plate 6b, 8b of the double wall plates 6a, 6b, 8a, 8b. It is configured to be inserted into and fixed, and the assembling blades 10a and 12a of the left and right wall surfaces 10 and 12 are interposed between the double wall plates 6a and 6b and 8a and 8b of the front and rear wall surfaces 6 and 8. Corrugated cardboard packaging box characterized in that the extension is formed by overlapping length.
7. The "U" shaped cutting line (46) according to claim 6, starting from the outer fold line (F5) to the central horizontal upper side (20) of the front and rear wall portions (6) (8) and crossing over the inner fold line (F6). ) And an upright type support piece 48 formed by folding the fold lines F5 and F6, and the bottom piece of the packing box on which the support piece 48 is placed upon the multi-layer stacking of the packing box ( 4) is fitted into the cut-out hole 40 formed in the outer wall plate (6a) (8a) of the double wall plate (6a, 6b) (8a, 8b) in contact with the fold line (F1) (F2). Cardboard packing box.
The inner side of the double wall plates 6a, 6b (8a, 8b) in contact with the cutout holes 40 of the outer wall plates 6a, 8a of the double wall plates 6a, 6b, 8a, 8b. Corrugated cardboard packaging box, characterized in that the cut-out grooves (42) (44) are formed in the assembly blades (10a) (12a) of the wall plate (6b) (8b) and the left and right wall surface portions (10) (12).
In the cardboard packaging box,
Folded and extended from the front and rear right and left wall surfaces 6, 8, 10, 12 and the left and right wall surfaces 10, 12 formed by folding the bottom portion 4, the four sides of the bottom portion 4, respectively. The left and right roof portions 14 are provided, and the front and rear wall portions 6 and 8 are formed of three or more layers of corrugated cardboard, and the left and right roof portions 14 are horizontal surface portions connected to the inclined surface portion 14a and the inclined surface 14a. Corrugated cardboard packaging box, characterized in that each forming a (14b), each inclined surface portion (14a) is configured by binding the handle strap (50).
The wing-shaped reinforcing engagement piece 28, which is folded by a fold line F10 on the left and right sides of the front and rear wall surfaces 6, 8, is extended to form a left and right wall surface portions 10, 12. Corresponding slit-shaped hook holes 29 are formed on the left and right sides, so that the reinforcing catch pieces 28 are fitted into the hook holes 29 when the front, rear, right, and right wall surfaces 6, 8, 10, and 12 are assembled. Cardboard packaging box characterized in that the configuration.

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