Carton box

Abstract

The carton is provided with a top face part and a front side face part, one end of the top face part and one end of the front side face part are connected into a whole, a fold line I is arranged between the top face part and the front side face part, and the top face part and the front side face part directly surround the inner space of the carton. And the carton is provided with a display part. The opening direction of the carton deviates to the front side direction of the carton, the internal space of the carton is exposed from the top and the front side direction of the carton, a display space is provided for commodities in the carton in an area convenient for consumers to observe, the commodities can be observed at least from a head-up angle and a top-down angle, and therefore a three-dimensional commodity display effect is achieved. The information originally printed on the carton can be further displayed at a higher position by bending the display part.

Description

Technical Field

[0001] This invention relates to a cardboard box, and more particularly to a cardboard box that can provide a display function. Background Technology

[0002] In the packaging and transportation sector, cardboard boxes are needed for transporting goods. Typical cardboard boxes are rectangular with sharp edges; they are opened by flipping open the top flap. Once they fulfill their transport function, they are detached from the goods and do not participate in the sales process. Therefore, existing cardboard boxes only serve the purpose of goods transport. The reason for this is closely related to the way the boxes are opened. Opening a cardboard box requires tearing or ripping off the tape from the top, opening the flap, and finally taking out the items from the top. After the box is opened from the top, the outside world can only observe the goods inside from near the top, and only the top of the goods are visible. The densely packed goods inside cannot be easily observed by consumers, resulting in a mismatch between the cardboard box's transport function and the need to display the goods. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to display goods in their packed state, thereby obtaining a cardboard box with display function.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: The carton has a top surface and a front side surface. One end of the top surface and one end of the front side surface are integrated. A crease line I is provided between the top surface and the front side surface. The top surface and the front side surface directly surround the internal space of the carton. The carton has a display area, which includes a front display area and a rear display area. The front display area and the rear display area are integrated. A crease line II is provided between the front display area and the rear display area. One side of the rear display area is integrated with the top surface, and a crease line III is provided between the rear display area and the top surface. Other edges of the rear display area are provided with a dotted tangent line to the top surface. An edge of the front display area is provided with a dotted tangent line to the front side surface. Crease line I and crease line II are in the same straight line direction. The length of the front display area in the direction perpendicular to crease line II is greater than or equal to the length of the rear display area in the direction perpendicular to crease line II.

[0005] The design concept of the above technical solution is to optimize the opening method. The display area is housed within the top and front sides. When most of the edges of the display area detach from the top and front sides, the internal space of the carton can be exposed from the top and front sides. When the carton contains neatly arranged goods, it provides display space for the goods in an area easily visible to the consumer, allowing them to observe the goods from at least two angles (eye level and top), thus achieving a three-dimensional product display effect. Here, the internal space refers to the space enclosed by the carton body to accommodate the goods; the display space refers to the area exposed to the outside after the display area is torn and bent, allowing the consumer to observe the goods. Simultaneously, one end of the display area is integrated with the top side. Guided by crease line II, the display area can cause the front and rear display areas to bend. The end of the front display area can rest against the top of the goods, forming a triangular three-dimensional structure or a folded flat structure. The patterns printed on the display area can be displayed at a higher position, serving an advertising function. In this way, after the implementation of this technical solution, the product can be displayed, and the information originally printed on the cardboard box can be further displayed at a higher position.

[0006] To facilitate a fixed posture or shape for the display section and reduce or avoid any restriction on the goods inside the box, the width of the front display section at its end is greater than or equal to the width of the rear display section at the end connecting to the top surface. The front display section maintains its bent state with the rear display section by embedding its end into the top surface. When the display section is bent along crease line II, the embedding of the front display section at its end into the top surface allows friction between the two sides of the front display section and the top surface, thus maintaining the bent state with the rear display section. In this way, the display section maintains a triangular three-dimensional structure or a folded flat structure, avoiding the influence of the presence or absence of goods, and maintaining the required bent state even in an empty box.

[0007] This application also provides another technical solution to facilitate maintaining the bent state of the display part, namely, providing a limiting protrusion on the side of the front display part. The front display part is held in a bent state relative to the rear display part by abutting against the top surface through the limiting protrusion. The limiting protrusion does not extend into the box, but only rests on the top surface and is pressed tightly against it. Sufficient static friction is obtained by the top surface supporting the limiting protrusion, thereby constructing the limiting force required to maintain the bent state of the display part. This technical solution can be used in combination with the aforementioned technical solution where the end of the front display part is embedded in the top surface.

[0008] To maximize the static friction between the limiting protrusions and the top surface, a limiting protrusion is provided on each side of the front display section. These protrusions are symmetrically distributed relative to the front display section and have supporting straight edges for connection with the top surface. This symmetrical distribution of the limiting protrusions helps to distribute the force evenly on the front display section, resulting in a regular display state and preventing the display section from becoming distorted after bending.

[0009] To obtain more prominent display area, this application also optimizes other structural features of the cardboard box. This design allows the optimized structure to be closely related to the shape characteristics of the goods contained inside, especially cylindrical canned goods. The optimized cardboard box has rounded corners corresponding to the sides of canned goods. In this way, the eye-catching rounded corner design of the cardboard box can guide consumers to pay attention to the opened box, and thus focus more on the goods directly displayed in the display area. Therefore, the cardboard box also has a bottom section, a rear side section, a left side section, and a right side section. The other end of the front side section is integrated with one end of the bottom section, and the other end of the bottom section is integrated with one end of the rear side section. One end of the rear side section has a connecting part, which connects to the other end of the top section. The top section has four rounded corners, the bottom section has four rounded corners, the top section has upper inward folds on both sides, the bottom section has lower inward folds on both sides, and the front side section has... The box has a front inward fold and rear inward folds on both sides of the rear side. The upper and lower inward folds are bent toward the interior space of the carton. The front and rear inward folds are bent toward the interior space of the carton along the rounded corners of the top and bottom surfaces. The front and rear inward folds form rounded corners. The upper and lower inward folds overlap and connect with the front inward fold in a direction parallel to crease line I. The upper and lower inward folds overlap and connect with the rear inward fold in a direction parallel to crease line I.

[0010] This invention also provides a second type of cardboard box, which differs from the first type in that the crease line II required for the bending of the display area is positioned. In the first technical solution, crease line II and crease line I between the top and front sides are in the same direction, connecting front and back, causing the distribution characteristics of the front and rear display areas on the cardboard box to unfold around the corner where crease line I is located. The first technical solution is suitable for packaging where one layer of goods is placed inside the cardboard box. The length of the opening formed after the front display area is torn away from the front side is slightly less than or equal to the height of the goods, preventing the goods from losing balance due to the opening and avoiding squeezing and falling out. The second technical solution, described below, is more suitable for packaging where two or more layers of goods are placed inside the cardboard box. In this case, crease line II and crease line I between the front and rear display areas are staggered, and the distribution characteristics of the front and rear display areas on the cardboard box move away from the corner of the straight line and extend towards the top side. In this way, the opening length on the front side can match the height of the top layer of goods in a multi-layered arrangement, where the height of the goods is significantly less than the height of the carton. Otherwise, creating an opening on the front of the carton that is approximately equal to or equal to the total height of the stacked goods would introduce uncertainty during product display. Therefore, the design concept of the second carton structure in this invention addresses the technical requirements for displaying stacked goods.

[0011] The technical solution for the second type of cardboard box is as follows: the cardboard box has a top surface and a front side surface. One end of the top surface and one end of the front side surface are integrated. A crease line I is provided between the top surface and the front side surface. The top surface and the front side surface directly surround the internal space of the cardboard box. The cardboard box has a display area, which includes a front display area and a rear display area. The front display area and the rear display area are integrated. A crease line II is provided between the front display area and the rear display area. One side of the rear display area is integrated with the top surface, and a crease line III is provided between the rear display area and the top surface. A dotted tangent line is provided between the other edges of the rear display area and the top surface. A dotted tangent line is provided between the edge of the front display area and the front side surface. A crease line IV is provided on the front display area. Crease lines I and IV are in the same straight line direction. The length of the front display area in the direction perpendicular to crease line II is greater than or equal to the length of the rear display area in the direction perpendicular to crease line II.

[0012] In this technical solution, crease line IV is added to the front display area, and crease line II is located on the top surface. Crease line IV provides guidance for bending required for carton forming, while crease line II continues to provide guidance for bending between the front and rear display areas. Based on this technical solution, the display area, after bending, can be positioned closer to the rear of the carton, a feature also present in the first carton structure. Similarly,

[0013] The second technical solution also optimizes the opening method. The display area is housed within the top and front sides. When most edges of the display area detach from the top and front sides, the internal space of the carton is exposed from the top and front. When the carton contains neatly arranged goods, it provides display space for the goods in an area easily visible to the consumer, allowing them to observe the goods from both eye-level and top-down angles, thus achieving a three-dimensional product display effect. One end of the display area is integrated with the top side. Guided by crease line II, the display area can cause the front and rear display areas to bend. The end of the front display area can rest against the top of the goods, forming a triangular three-dimensional structure or a folded flat structure. The printed patterns on the display area can be displayed at a higher position, serving as advertising. In this way, after implementing this technical solution, the goods can be displayed, and the information originally printed on the carton can be further displayed at a higher position.

[0014] To facilitate a fixed posture or shape for the display section and reduce or avoid any restriction on the goods inside the box, the width of the front display section at its end is greater than or equal to the width of the rear display section at the end connecting to the top surface. The front display section maintains its bent state with the rear display section by embedding its end into the top surface. When the display section is bent along crease line II, the embedding of the front display section at its end into the top surface allows friction between the two sides of the front display section and the top surface, thus maintaining the bent state with the rear display section. In this way, the display section maintains a triangular three-dimensional structure or a folded flat structure, avoiding the influence of the presence or absence of goods, and maintaining the required bent state even in an empty box.

[0015] This application also provides another technical solution to facilitate maintaining the bent state of the display part, namely, providing a limiting protrusion on the side of the front display part. The front display part is held in a bent state relative to the rear display part by abutting against the top surface through the limiting protrusion. The limiting protrusion does not extend into the box, but only rests on the top surface and is pressed tightly against it. Sufficient static friction is obtained by the top surface supporting the limiting protrusion, thereby constructing the limiting force required to maintain the bent state of the display part. This technical solution can be used in combination with the aforementioned technical solution where the end of the front display part is embedded in the top surface.

[0016] To maximize the static friction between the limiting protrusions and the top surface, a limiting protrusion is provided on each side of the front display section. These protrusions are symmetrically distributed relative to the front display section and have supporting straight edges for connection with the top surface. This symmetrical distribution of the limiting protrusions helps to distribute the force evenly on the front display section, resulting in a regular display state and preventing the display section from becoming distorted after bending.

[0017] To obtain more prominent display area, this application also optimizes other structural features of the cardboard box. This design allows the optimized structure to be closely related to the shape characteristics of the goods contained inside, especially cylindrical canned goods. The optimized cardboard box has rounded corners corresponding to the sides of canned goods. In this way, the eye-catching rounded corner design of the cardboard box can guide consumers to pay attention to the opened box, and thus focus more on the goods directly displayed in the display area. Therefore, the cardboard box also has a bottom section, a rear side section, a left side section, and a right side section. The other end of the front side section is integrated with one end of the bottom section, and the other end of the bottom section is integrated with one end of the rear side section. One end of the rear side section has a connecting part, which connects to the other end of the top section. The top section has four rounded corners, the bottom section has four rounded corners, the top section has upper inward folds on both sides, the bottom section has lower inward folds on both sides, and the front side section has... The box has a front inward fold and rear inward folds on both sides of the rear side. The upper and lower inward folds are bent toward the interior space of the carton. The front and rear inward folds are bent toward the interior space of the carton along the rounded corners of the top and bottom surfaces. The front and rear inward folds form rounded corners. The upper and lower inward folds overlap and connect with the front inward fold in a direction parallel to crease line I. The upper and lower inward folds overlap and connect with the rear inward fold in a direction parallel to crease line I.

[0018] This invention employs the aforementioned technical solution: the opening direction of the cardboard box is biased towards the front, exposing the internal space of the box from the top and front, providing display space for the goods inside in an area easily observed by consumers. This allows for observation of the goods from at least two angles: eye-level and overhead, thus achieving a three-dimensional product display effect. Information originally printed on the cardboard box can be further displayed at a higher position by bending the display section. The cardboard box's display function provides a sales display effect equivalent to that achieved through shelf placement in a sales environment. This avoids the need to move goods from the cardboard box to the shelf, and the use of the cardboard box to place goods simplifies shelf placement, requiring only the tearing of the display section of the cardboard box. Attached Figure Description

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of a cardboard box in an unfolded state according to the first embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of a cardboard box in a formed and unopened state according to the first embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of a cardboard box in a formed and opened state according to the first embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of a cardboard box in an unfolded state according to the ninth embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of a cardboard box in a formed and unopened state according to the ninth embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of the structure of a cardboard box in a formed and open state according to the ninth embodiment of the present invention. Detailed Implementation

[0026] The first embodiment of the present invention, as follows: Figure 1 , 2 As shown in Figure 3.

[0027] The carton body is made of cardboard. In its flat state, the carton has a board-like structure, with four rectangular sections: a rear side section 1, a bottom section 2, a front side section 3, and a top section 4. These four sections are arranged sequentially and separated by crease lines. A crease line I13 connects the top section 4 to the front side section 3. One end of the top section 4 is connected to one end of the front side section 3, the other end of the front side section 3 is connected to one end of the bottom section 2, and the other end of the bottom section 2 is connected to one end of the rear side section 1. One end of the rear side section 1 has a connecting part, which is bonded to the other end of the top section 4 with adhesive. The rear side section 1, bottom section 2, front side section 3, and top section 4 form an end-to-end connection, creating the internal space of the carton.

[0028] The top surface 4 and bottom surface 2 have the same structural dimensions, as do the front side surface 3 and rear side surface 1. The top surface 4 and bottom surface 2 have four rounded corners. The top surface 4 has upper inward folds 7 on both sides, and the bottom surface 2 has lower inward folds 8 on both sides. The widths of both upper and lower inward folds 7 and 8 are less than half the width of the front side surface 3. The front side surface 3 has front inward folds 9 on both sides, and the rear side surface 1 has rear inward folds 10 on both sides. The lengths of both front and rear inward folds 9 and 10 are less than half the width of the top surface 4. The upper and lower inward folds 7 and 8 bend towards the interior space of the carton. The front and rear inward folds 9 and 10 bend along the rounded corners of the top surface 4 and bottom surface 2 towards the interior space of the carton, forming rounded corners. After bending, the upper inward fold 7 and the lower inward fold 8 are aligned, and the front inward fold 9 and the rear inward fold 10 are aligned; the upper inward fold 7 and the lower inward fold 8 are both located outside the front inward fold 9 or the rear inward fold 10; and the upper inward fold 7 and the lower inward fold 8 overlap and connect with the front inward fold 9 in a direction parallel to the crease line I13, and the upper inward fold 7 and the lower inward fold 8 overlap with the rear inward fold 10 in a direction parallel to the crease line I13 and are connected by adhesive.

[0029] The rear side portion 1, bottom portion 2, front side portion 3, and top portion 4 directly surround the internal space of the carton, and all four are in direct contact with the internal space of the carton. When goods are placed inside the carton, the goods will be close to the aforementioned four portions.

[0030] The carton has display areas located on the front side section 3 and the top section 4. These display areas include a front display section 5 and a rear display section 6, which are integrated. A crease line II 14 distinguishes the two sections. Both sections can be bent along crease line II 14. One side of the rear display section 6 is integrated with the top section 4, and a crease line III 15 connects the two sections. Other edges of the rear display section 6 have dashed tangent lines to the top section 4. A dashed tangent line connects the edge of the front display section 5 to the front side section 3. Crease lines I 13 and II 14 are in the same straight line direction. The bending points of the front side section 3 and the top section 4 are adjacent to the bending points of the front display section 5 and the rear display section 6, all located at the corners of the carton. The length of the front display portion 5 in the direction of the vertical crease line II 14 is greater than the length of the rear display portion 6 in the direction of the vertical crease line II 14. The width of the front display portion 5 at its end is equal to the width of the rear display portion 6 at the end where it connects with the top surface portion 4. A limiting protrusion 11 is provided on each side of the front display portion 5. The limiting protrusions 11 are symmetrically distributed with respect to the front display portion 5. The limiting protrusions 11 are right-angled trapezoids, and they form a supporting straight edge 12 at their bottom edge for connection with the top surface portion 4.

[0031] After the carton is filled with neatly arranged goods, the goods can be effectively displayed outwards while the carton is placed. Simply tear along the dotted line at the display area, so that the front display part 5 is completely separated from the front side part 3, and the two sides of the rear display part 6 are separated from the top part 4. Then, bend the front display part 5 and the rear display part 6 along the crease line II 14. Then, insert the end of the front display part 5 into the top part 4, and the limiting protrusion 11 presses tightly against the top part 4 at the supporting straight edge 12. The top part 4 supports the limiting protrusion 11. In this way, static friction is obtained between the two sides of the front display part 5 embedded in the top part 4 and the top part 4, and static friction is obtained between the supporting straight edge 12 of the limiting protrusion 11 and the top part 4. At this time, the front display part 5 not only maintains the bent state with the rear display part 6 by the end of the front display part 5 being embedded in the top part 4, but also maintains the bent state with the rear display part 6 by the limiting protrusion 11 abutting against the top part 4. Finally, the display section is folded with its protrusion protruding from the top of the carton. It is worth noting that the bending operations required for the box forming and for the display section to protrude from the top of the carton, both of these are based on the bending guidance provided by crease line II14.

[0032] The second embodiment of the present invention differs from the first embodiment in that there is no limiting protrusion at the front display portion. In this case, the front display portion maintains its bent state with the rear display portion only by the end of the front display portion being embedded in the top surface portion.

[0033] The third embodiment of the present invention differs from the first embodiment in that the length of the front display portion in the direction perpendicular to the crease line II is equal to the length of the rear display portion in the direction perpendicular to the crease line II. In this embodiment, the end of the front display portion can still be embedded in the top surface portion.

[0034] The fourth embodiment of the present invention differs from the second embodiment in that the length of the front display portion in the direction perpendicular to the crease line II is equal to the length of the rear display portion in the direction perpendicular to the crease line II. In this embodiment, the end of the front display portion can still be embedded in the top surface portion.

[0035] The fifth embodiment of the present invention differs from the first embodiment in that the width of the front display portion at its end is greater than the width of the rear display portion at the end where it connects to the top surface portion.

[0036] The sixth embodiment of the present invention differs from the second embodiment in that the width of the front display portion at its end is greater than the width of the rear display portion at the end where it connects to the top surface portion.

[0037] The seventh embodiment of the present invention differs from the third embodiment in that the width of the front display portion at its end is greater than the width of the rear display portion at the end where it connects to the top surface portion.

[0038] The eighth embodiment of the present invention differs from the fourth embodiment in that the width of the front display portion at its end is greater than the width of the rear display portion at the end where it connects to the top surface portion.

[0039] The ninth embodiment of the present invention differs from the first embodiment in that the front display part 5 is provided with a crease line Ⅳ16. Thus, the bending operation of the front display part 5 and the rear display part 6 to meet the requirements of box forming is completed based on the bending guidance provided by the crease line Ⅱ14. However, the bending operation to meet the requirement of the display part protruding from the top of the carton is completed based on the bending guidance provided by the crease line Ⅳ16.

[0040] The following is the specific content of this embodiment, such as Figure 4 , 5 As shown in Figure 6.

[0041] The carton body is made of cardboard. In its flat state, the carton has a board-like structure, with four rectangular sections: a rear side section 1, a bottom section 2, a front side section 3, and a top section 4. These four sections are arranged sequentially and separated by crease lines. A crease line I13 connects the top section 4 to the front side section 3. One end of the top section 4 is connected to one end of the front side section 3, the other end of the front side section 3 is connected to one end of the bottom section 2, and the other end of the bottom section 2 is connected to one end of the rear side section 1. One end of the rear side section 1 has a connecting part, which is bonded to the other end of the top section 4 with adhesive. The rear side section 1, bottom section 2, front side section 3, and top section 4 form an end-to-end connection, creating the internal space of the carton.

[0042] The top surface 4 and bottom surface 2 have the same structural dimensions, as do the front side surface 3 and rear side surface 1. The top surface 4 and bottom surface 2 have four rounded corners. The top surface 4 has upper inward folds 7 on both sides, and the bottom surface 2 has lower inward folds 8 on both sides. The widths of both upper and lower inward folds 7 and 8 are less than half the width of the front side surface 3. The front side surface 3 has front inward folds 9 on both sides, and the rear side surface 1 has rear inward folds 10 on both sides. The lengths of both front and rear inward folds 9 and 10 are less than half the width of the top surface 4. The upper and lower inward folds 7 and 8 bend towards the interior space of the carton. The front and rear inward folds 9 and 10 bend along the rounded corners of the top surface 4 and bottom surface 2 towards the interior space of the carton, forming rounded corners. After bending, the upper inward fold 7 and the lower inward fold 8 are aligned, and the front inward fold 9 and the rear inward fold 10 are aligned; the upper inward fold 7 and the lower inward fold 8 are both located outside the front inward fold 9 or the rear inward fold 10; and the upper inward fold 7 and the lower inward fold 8 overlap and connect with the front inward fold 9 in a direction parallel to the crease line I13, and the upper inward fold 7 and the lower inward fold 8 overlap with the rear inward fold 10 in a direction parallel to the crease line I13 and are connected by adhesive.

[0043] The rear side portion 1, bottom portion 2, front side portion 3, and top portion 4 directly surround the internal space of the carton, and all four are in direct contact with the internal space of the carton. When goods are placed inside the carton, the goods will be close to the aforementioned four portions.

[0044] The cardboard box has display areas located on the front side (3) and top surface (4). These display areas include a front display area (5) and a rear display area (6), which are integrated. A crease line (II14) distinguishes the two display areas. The front and rear display areas can be bent along this crease line. One side of the rear display area (6) is integrated with the top surface (4), and a crease line (III15) connects the rear display area (6) to the top surface (4). The other edges of the rear display area (6) are also integrated with the top surface (4). The front display portion 5 has a dummy tangent line; the edge of the front display portion 5 has a dummy tangent line not only between itself and the front side portion 3, but also between itself and the top surface portion 4. This is because the front display portion 5 has a crease line IV16, which divides the front display portion 5 into two parts. Crease line I13 and crease line IV16 are in the same straight line direction. The bending positions of the front side portion 3 and the top surface portion 4 are close to the bending positions of the two parts of the front display portion 5 along crease line IV16, all located at the corners of the carton. The length of the front display portion 5 in the direction perpendicular to crease line II14 is greater than the length of the rear display portion 6 in the direction perpendicular to crease line II14. The width of the front display portion 5 at its end is equal to the width of the rear display portion 6 at the end where it connects to the top surface portion 4. Each side of the front display portion 5 has a limiting protrusion 11, which is symmetrically distributed relative to the front display portion 5. The limiting protrusion 11 is a right trapezoid, and it forms a supporting straight edge 12 at its bottom edge for connection with the top surface portion 4.

[0045] After the carton is filled with neatly arranged goods, the goods can be effectively displayed outwards while the carton is placed down. Simply tear along the dotted line at the display area so that the front display part 5 is completely separated from the front side part 3 and the top part 4, and the two sides of the rear display part 6 are separated from the top part 4. Then, flatten the front display part 5 and bend the front display part 5 and the rear display part 6 along the crease line II14. Next, the end of the front display portion 5 is embedded into the top surface portion 4. The limiting protrusion 11 presses tightly against the top surface portion 4 at the supporting straight edge 12. The top surface portion 4 supports the limiting protrusion 11. Thus, static friction is obtained between the two sides of the front display portion 5 embedded in the top surface portion 4 and the top surface portion 4, and static friction is obtained between the supporting straight edge 12 of the limiting protrusion 11 and the top surface portion 4. At this time, the front display portion 5 not only maintains its bent state with the rear display portion 6 by abutting against the top surface portion 4 through the limiting protrusion 11, but also maintains its bent state with the rear display portion 6 through abutting against the top surface portion 4 through the limiting protrusion 11. Finally, the display portion is in a folded state with its protrusion protruding from the top of the carton.

[0046] The tenth embodiment of the present invention differs from the ninth embodiment in that there is no limiting protrusion at the front display portion. In this case, the front display portion maintains its bent state with the rear display portion only by embedding its end into the top surface portion.

[0047] The eleventh embodiment of the present invention differs from the ninth embodiment in that the length of the front display portion in the direction perpendicular to the crease line II is equal to the length of the rear display portion in the direction perpendicular to the crease line II. In this embodiment, the end of the front display portion can still be embedded in the top surface portion.

[0048] The twelfth embodiment of the present invention differs from the tenth embodiment in that the length of the front display portion in the direction perpendicular to the crease line II is equal to the length of the rear display portion in the direction perpendicular to the crease line II. In this embodiment, the end of the front display portion can still be embedded in the top surface portion.

[0049] The thirteenth embodiment of the present invention differs from the ninth embodiment in that the width of the front display portion at its end is greater than the width of the rear display portion at the end where it connects to the top surface portion.

[0050] The fourteenth embodiment of the present invention differs from the tenth embodiment in that the width of the front display portion at its end is greater than the width of the rear display portion at the end where it connects to the top surface portion.

[0051] The fifteenth embodiment of the present invention differs from the eleventh embodiment in that the width of the front display portion at its end is greater than the width of the rear display portion at the end where it connects to the top surface portion.

[0052] The sixteenth embodiment of the present invention differs from the twelfth embodiment in that the width of the front display portion at its end is greater than the width of the rear display portion at the end where it connects to the top surface portion.

[0053] In the above embodiments, the adhesive can be replaced by double-sided tape or packing nails, thus obtaining the corresponding embodiments.

Claims

1. A cardboard box having a top surface portion (4) and a front side portion (3), one end of the top surface portion (4) being integrally connected to one end of the front side portion (3), a crease line I (13) being provided between the top surface portion (4) and the front side portion (3), the top surface portion (4) and the front side portion (3) directly surrounding the interior space of the cardboard box, characterized in that: The carton is provided with a display area, which includes a front display area (5) and a rear display area (6). The front display area (5) and the rear display area (6) are connected as one unit. A crease line II (14) is provided between the front display area (5) and the rear display area (6). One side of the rear display area (6) is connected to the top surface (4) as one unit, and a crease line III (15) is provided between the rear display area (6) and the top surface (4). Other edges of the rear display area (6) are provided with a dotted tangent line between them and the top surface (4). A dotted tangent line is provided between the edge of the front display area (5) and the front side surface (3). The crease line I (13) and the crease line II (14) are in the same straight line direction. The length of the front display area (5) in the direction perpendicular to the crease line II (14) is greater than or equal to the length of the rear display area (6) in the direction perpendicular to the crease line II (14).

2. The cardboard box according to claim 1, characterized in that: The width of the front display part (5) at its end is greater than or equal to the width of the rear display part (6) at the end that connects to the top surface part (4). The front display part (5) is bent between itself and the rear display part (6) by embedding its end into the top surface part (4).

3. The cardboard box according to claim 1 or 2, characterized in that: The front display part (5) has a limiting protrusion (11) on its side. The front display part (5) abuts against the top surface part (4) through the limiting protrusion (11) and maintains a bent state with the rear display part (6).

4. The cardboard box according to claim 3, characterized in that: Each side of the front display portion (5) is provided with a limiting protrusion (11), the limiting protrusion (11) is symmetrically distributed relative to the front display portion (5), and the limiting protrusion (11) is provided with a supporting straight edge (12) for connecting with the top surface portion (4).

5. The cardboard box according to claim 1, characterized in that: The carton also has a bottom part (2), a rear side part (1), a left side part, and a right side part. The other end of the front side part (3) is connected to one end of the bottom part (2), and the other end of the bottom part (2) is connected to one end of the rear side part (1). One end of the rear side part (1) has a connecting part, which is connected to the other end of the top part (4). The top part (4) has four rounded corners, and the bottom part (2) has four rounded corners. The top part (4) has upper inward folding parts (7) on both sides, and the bottom part (2) has lower inward folding parts (8) on both sides. The front side part (3) has front inward folding parts (7) on both sides. 9) The rear side portion (1) is provided with rear inward fold portions (10) on both sides. The upper inward fold portion (7) and the lower inward fold portion (8) are bent toward the interior space of the carton. The front inward fold portion (9) and the rear inward fold portion (10) are bent toward the interior space of the carton along the rounded corners of the top surface portion (4) and the bottom surface portion (2). The front inward fold portion (9) and the rear inward fold portion (10) form rounded corners. The upper inward fold portion (7) and the lower inward fold portion (8) overlap with the front inward fold portion (9) in a direction parallel to the crease line I (13). The upper inward fold portion (7) and the lower inward fold portion (8) overlap with the rear inward fold portion (10) in a direction parallel to the crease line I (13).

6. A cardboard box having a top surface portion (4) and a front side portion (3), one end of the top surface portion (4) being integrally connected to one end of the front side portion (3), a crease line I (13) being provided between the top surface portion (4) and the front side portion (3), the top surface portion (4) and the front side portion (3) directly surrounding the interior space of the cardboard box, characterized in that: The carton is provided with a display area, which includes a front display area (5) and a rear display area (6). The front display area (5) and the rear display area (6) are connected as one unit. A crease line II (14) is provided between the front display area (5) and the rear display area (6). One side of the rear display area (6) is connected to the top surface (4) as one unit, and a crease line III (15) is provided between the rear display area (6) and the top surface (4). Other edges of the rear display area (6) are provided with a dotted tangent line between them and the top surface (4). A dotted tangent line is provided between the edge of the front display area (5) and the front side surface (3). A crease line IV (16) is provided on the front display area (5). The crease line I (13) and the crease line IV (16) are in the same straight line direction. The length of the front display area (5) in the direction perpendicular to the crease line II (14) is greater than or equal to the length of the rear display area (6) in the direction perpendicular to the crease line II (14).

7. The cardboard box according to claim 6, characterized in that: The width of the front display part (5) at its end is greater than or equal to the width of the rear display part (6) at the end that connects to the top surface part (4). The front display part (5) is bent between itself and the rear display part (6) by embedding its end into the top surface part (4).

8. The cardboard box according to claim 6 or 7, characterized in that: The front display part (5) has a limiting protrusion (11) on its side. The front display part (5) abuts against the top surface part (4) through the limiting protrusion (11) and maintains a bent state with the rear display part (6).

9. The cardboard box according to claim 8, characterized in that: Each side of the front display portion (5) is provided with a limiting protrusion (11), the limiting protrusion (11) is symmetrically distributed relative to the front display portion (5), and the limiting protrusion (11) is provided with a supporting straight edge (12) for connecting with the top surface portion (4).

10. The cardboard box according to claim 6, characterized in that: The carton also has a bottom part (2), a rear side part (1), a left side part, and a right side part. The other end of the front side part (3) is connected to one end of the bottom part (2), and the other end of the bottom part (2) is connected to one end of the rear side part (1). One end of the rear side part (1) has a connecting part, which is connected to the other end of the top part (4). The top part (4) has four rounded corners, and the bottom part (2) has four rounded corners. The top part (4) has upper inward folding parts (7) on both sides, and the bottom part (2) has lower inward folding parts (8) on both sides. The front side part (3) has front inward folding parts (7) on both sides. 9) The rear side portion (1) is provided with rear inward fold portions (10) on both sides. The upper inward fold portion (7) and the lower inward fold portion (8) are bent toward the interior space of the carton. The front inward fold portion (9) and the rear inward fold portion (10) are bent toward the interior space of the carton along the rounded corners of the top surface portion (4) and the bottom surface portion (2). The front inward fold portion (9) and the rear inward fold portion (10) form rounded corners. The upper inward fold portion (7) and the lower inward fold portion (8) overlap with the front inward fold portion (9) in a direction parallel to the crease line I (13). The upper inward fold portion (7) and the lower inward fold portion (8) overlap with the rear inward fold portion (10) in a direction parallel to the crease line I (13).

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