TWM647391U - Carton structure - Google Patents

Abstract

This invention relates to a carton structure, which is composed of a piece of cardboard. The cardboard forms a bottom sheet located in the center, and two first and second two first and second sections respectively extend from the opposite sides of the periphery of the bottom sheet. The side vertical pieces, and a triangular folded web portion is respectively formed between the adjacent first side vertical piece and the second side vertical piece, and the first and second side vertical pieces respectively extend outward and can be bent relative to each other. The first and second upper lip pieces and the first and second lower lip pieces are stacked horizontally on the upper and lower sides. The characteristic of this invention is that the first and second upper lip pieces connecting the first and second side vertical pieces have two ends respectively. An extension piece, and the extension pieces at both ends respectively have convergent butt bevels, and the two ends of the first and second lower lips connected to the first and second upper lips respectively have a first lower convex cover. This way, the bevel edges of the corner joints can be kept horizontal without any height difference, so that when the adhesive film is pasted, the height difference will not affect the sealing effect.

Description

Carton structure

This invention belongs to the technical field of an integrated carton. Specifically, it is a carton structure formed by folding and pasting, so that the top surface of the horizontal lip can be kept flat, so that the glue film can be pasted to avoid height differences. Poor bonding effect will be affected, which can further improve its leak-proof effect and bonding strength.

Press, in the past, food containers were mainly iron boxes or plastic boxes. Since iron boxes are mainly made of metal, they are costly and difficult to use in mass production. Plastic boxes, on the other hand, are becoming increasingly popular due to the increasing awareness of environmental protection. Due to the excessive damage to the environment, current regulations have gradually reduced the use of plastic packaging containers, and industry players have also responded to the policy and switched to paper containers. In order to save transportation and storage space, paper containers are generally made of cardboard and are made of pre-pressed folding lines and secant lines to form a bottom sheet, multiple side panels and a cover sheet. Before use, they can be folded along the folding lines and secant lines to form a box with an upward opening. And optional lids can be used to meet food holding and packaging needs.

In recent years, due to the substantial increase in the number and frequency of eating out, the microwave food provided by general convenience stores and supermarkets has also become more diversified. Considering the longer shelf life and better presentation, the cartons used for microwave food are usually It is a bi-fold lip carton with a horizontal lip on the edge for direct adhesion of the adhesive film. As shown in the first to fourth pictures, the existing bi-fold lip carton is formed by folding and pressing a piece of cardboard (10) A box-like structure with an upward opening, the cardboard (10) has a central The bottom sheet (11) has two first side vertical pieces (12) and two second side vertical pieces (13) that can be bent upward respectively extending from two opposite sides of the periphery of the bottom piece (11), and these The first side standing piece (12) and the second side standing pieces (13) can be bent and erected at intervals relative to the bottom piece (11), and the adjacent first side standing piece (12) and the second side standing piece (12) can A triangular folded web portion (14) is respectively formed between the sheets (13) for use of the aforementioned bottom sheet (11), first side standing sheet (12), second side standing sheet (13) and half folded web portion (14). ) are relatively bent to form an upwardly opening accommodation space (15), so that the bottom and periphery of the double-fold lip carton can form a seamless structure. Furthermore, the aforementioned first side vertical piece (12) is different from the bottom piece (12). 11) has a first upper lip piece (161) and a first lower lip piece (165) extending outward respectively that can be bent and folded relative to each other to form a horizontal lip, and the aforementioned second side vertical piece (13) is different from the A second upper lip (171) and a second lower lip (175) are respectively extended outward from the edges of the bottom sheet (11) and can be bent and folded relative to each other to form a horizontal lip to increase the support strength of the horizontal lip. The adhesive film is flat for sticking, and the two ends of the first upper lip piece (161) have extended upper covering pieces (162) that exceed the length of the opposite first side vertical piece (12), and the aforementioned first lower lip piece (165) The two ends of the second upper lip (171) have first butt bevel edges (166) that converge toward the edge. The two ends of the second upper lip (171) are bent to lean against the first butt bevel edge (166). The second butt bevel edge (172) is connected, and the second lower lip (175) has an extended lower cover (176) that exceeds the length of the second upper lip (171), so that the first can be folded when folding the box. The lower lip (165) and the first and second butt inclined edges (166, 172) of the second upper lip (171) are butt-fitted, and the extended upper cover (162) of the first upper lip (161) and the second The extended lower covering piece (176) of the two lower lips (175) can respectively cover the wiring that exceeds the first and second butting bevel edges (166, 172) of the butt joints (as shown in the third and fourth figures), thereby achieving corner protection. The purpose of leakage is to avoid leakage.

But there are some problems with this design. First of all, when the first After the extended upper covering piece (162) of the lip piece (161) covers the joint of the first and second butt-jointed inclined edges (166, 172) that are in close contact with each other, the extended upper covering piece (162) of the first upper lip piece (161) ( 162) will form a height difference between the surface of the second upper lip (171), so that when the adhesive film is sealed and bonded, it cannot fully fit, and a small gap may be generated, causing leakage problems, and may even affect the quality of the food. save. Furthermore, although the extended lower cover piece (176) of the second lower lip piece (175) can cover under the joint of the first and second butt-jointed bevel edges (166, 172) that are relatively close to each other, it is limited by the overall edge. Due to the width limitation, the area available for the extended lower cover sheet (176) to be adhered to the first lower lip sheet (165) becomes very small, so there is a problem that it cannot be effectively adhered after being adhered, and may even warp. , affecting the subsequent product yield and leakage prevention effect.

In other words, there are problems with the height difference and inability to effectively bond the corners of the existing double-fold lip cartons, which not only reduces the production yield, but also causes the sauce contained inside the box to be stuck at the corners. Seam leakage will cause sauce to be stained on the palms of the hands during use, which will affect the mood of eating and also affect eating hygiene. Therefore, there is indeed a need for further improvement of the existing ones. How to solve this problem is something that the industry is eager to think about. , which is also the subject that this creation intends to explore.

Due to the above deficiencies and needs, the creator used his many years of experience in related technologies and product design and manufacturing to study the above disadvantages and needs, and actively sought solutions. After continuous efforts in research and trial production, he finally succeeded. A carton structure was developed to overcome the inconvenience and trouble caused by the height difference and small sticking area at the existing corner joints.

Therefore, the main purpose of this invention is to provide a carton structure that can keep the top surface of the horizontal lip flat, so that the glue film can be pasted without causing any problems. The height difference affects the sealing effect during bonding, which further improves its leak-proof effect.

In addition, another main purpose of this invention is to provide a carton structure that can increase the bonding area and overlap, thereby improving the bonding effect and bonding strength.

To this end, this creation mainly achieves the above-mentioned purposes and effects through the following technical means. It is composed of a piece of cardboard, which uses multiple pre-pressed folding lines to form a central base, and There are two first side standing pieces and two second side standing pieces of equal height that can be bent upward respectively extending from the two opposite sides of the periphery of the bottom sheet. Furthermore, the adjacent first side standing piece and the second side standing piece are adjacent to each other. A triangular folded web portion is formed between the two side vertical pieces, so that the first side vertical pieces and the adjacent second side vertical pieces can be relatively bent using the folded web portions to form an opening upward. accommodating space, and the edges of the first side vertical piece different from the bottom piece respectively extend outwards and have a first upper lip piece and a first lower lip piece that can be bent relative to each other and overlapped horizontally, and the aforementioned second The edges of the side upright pieces that are different from the bottom piece are respectively extended outward with a second upper lip piece and a second lower lip piece that can be folded up and down relative to each other and stacked horizontally. The characteristic is that the aforementioned connection between the first side pieces is The two ends of the first upper lip of the standing piece respectively have extension pieces that exceed the length of the opposite first side standing piece, and the extension pieces at both ends have butt inclined edges that converge toward the first side standing piece. In addition, as mentioned above, The two ends of the first lower lip connected to the upper lip respectively have first lower convex covering pieces with the same length as the corresponding extension pieces. As for the two ends of the second upper lip connecting the second side vertical pieces, they also have respectively The extension piece exceeds the length of the opposite second side upright piece, and the extension pieces at both ends have butt bevel edges converging toward the second side upright piece; thereby making the butt bevel between the adjacent first upper lip piece and the second upper lip piece The edge can be close to the butt joint, and the first downward convex covering piece of the aforementioned first lower lip piece is superimposed and adhered to the bottom surface of the joint of the butt inclined edge, and the second downward convex covering piece of the aforementioned second lower lip piece can be It is superimposed and adhered to the bottom surface of the first lower convex covering piece.

Through the specific implementation of the aforementioned technical means, the carton structure of the invention can be formed on the adjacent first upper lip and the second upper lip by using the butt-jointed inclined edges at the corners. Therefore, when they are folded and folded horizontally, they can Maintaining the level without any height difference can keep the top surface of the horizontal lip of the carton structure of the present invention flat, so that when the adhesive film is pasted, it can avoid the height difference affecting the sealing effect during bonding. Furthermore, due to the The first and second lower convex covering pieces of the first and second lower lip pieces can be sequentially stacked and fixed on the bottom surface of the joint of the butt bevel edges and the bottom surface of the first lower convex covering piece, which can increase the adhesion The area and overlapping area can improve its bonding effect and bonding strength, effectively improve its practicability, and further improve its added value and economic benefits.

In addition, this invention utilizes the following technical means to further achieve the aforementioned purposes and effects; it includes: the first and second downward convex covering sheets can be selected from arc-shaped sheets.

In order to enable your review committee to further understand the composition, characteristics and other purposes of this invention, some preferred embodiments are listed below, and are described in detail with drawings, and at the same time, those who are familiar with this technical field can implement it in detail.

10:Cardboard

11: negative

12: First side vertical film

13:Second side vertical piece

14: Fold the web in half

15: Accommodation space

161: The first upper lip piece

162:Extended overlay

165: First lower lip piece

166: First butt bevel

171: Second upper lip piece

172: Second butt bevel

175: Second lower lip piece

176:Extended lower cover

50:Cardboard

51: negative

52: First side vertical film

53:Second side vertical piece

54: Fold the web in half

55: Accommodation space

561:The first upper lip piece

562: Extension piece

563:Butt bevel

565: First lower lip piece

566: First lower convex covering piece

571:Second upper lip piece

572: Extension piece

573:Butt bevel

575: Second lower lip piece

576: The second lower convex covering piece

The first picture: Schematic diagram of the cardboard appearance of the existing double-fold lip carton.

The second picture: a schematic diagram of the bending action of the existing double-fold lip carton.

The third picture: A schematic diagram of the partial corner appearance of the existing double-fold lip carton.

Figure 4: A schematic diagram of the folded appearance of the existing double-fold lip carton to illustrate its state after assembly.

Figure 5: Schematic diagram of the cardboard appearance of the carton structure of this creation, for Explain how it unfolds.

Figure 6: A schematic diagram of the bending action of the carton structure of this creation, illustrating its folded shape and relative relationship.

Figure 7: A schematic diagram of the partial corner appearance of the carton structure of this creation.

Figure 8: A schematic diagram of the folded appearance of the paper box structure of this creation to illustrate its state after assembly.

The invention is a carton structure. The accompanying drawings illustrate specific embodiments of the invention and its components. All references to front and back, left and right, top and bottom, upper and lower parts, and horizontal and vertical are only for reference. The description is provided for convenience and does not limit the creation, nor does it limit its components to any position or spatial direction. The dimensions specified in the drawings and descriptions can be changed according to the design and needs of the specific embodiments of the invention without departing from the patentable scope of the invention. Therefore, such structures are not subject to the patent application. limit.

The composition of the carton structure of this creation is as shown in the fifth and sixth figures. It is composed of a piece of cardboard (50), and is bent and glued using pre-formed pre-pressure fold lines to form a box with an upward opening. shape structure; and the detailed composition of this creation is as revealed in the fifth, sixth, seventh and eighth figures. The cardboard (50) uses a plurality of pre-pressed folding lines to form a central base (51), and in Two first side vertical pieces (52) and two second side vertical pieces (53) of the same height that can be bent upward extend from two opposite sides of the periphery of the bottom piece (51), and are adjacent to each other. A triangular folded web portion (54) is formed between the first side upright piece (52) and the second side upright piece (53), so that the first side upright piece (52) and the third side upright piece (52) are connected with each other. The two side vertical pieces (53) can be bent and erected at intervals relative to the base piece (51), and the folded web portions (54) are used to connect each other. Bend and fold on the outer surface of the first side vertical piece (52) or the second side vertical piece (53) to form an upwardly opening accommodation space (55), and the first side vertical piece (52) is different from The edges of the bottom sheet (51) are respectively extended outward with a first upper lip sheet (561) and a first lower lip sheet (565) that can be folded relative to each other and stacked horizontally, and the aforementioned second side vertical sheet ( 53) Different from the edges of the bottom sheet (51), a second upper lip (571) and a second lower lip (575) that can be folded relative to each other and stacked horizontally extend outward to improve the level. The support strength of the lip portion allows the adhesive film to be flat and adhered, so that the periphery of the bi-fold lip carton has a horizontal lip structure for the adhesive film to adhere to; as for the feature of this invention, the aforementioned connection of the first The two ends of the first upper lip piece (561) of the side riser piece (52) respectively have extension pieces (562) that exceed the length of the opposite first side riser piece (52), and the extension pieces (562) at both ends have extension pieces (562) extending toward the first side riser piece (52). The side vertical pieces (52) are converged by the butt inclined edges (563), and the two ends of the first lower lip piece (565) connected to the first upper lip piece (561) respectively have corresponding extension pieces (562). The first lower convex covering piece (566) is of equal length. As for the two ends of the second upper lip piece (571) connected to the second side standing pieces (53), there are also two ends that exceed the opposite second side standing piece (53). The extension piece (572) of the length, and the extension pieces (572) at both ends have butt inclined edges (573) converging towards the second side vertical piece (53), so that when folding the box, the adjacent ones can be The butt inclined edges (563, 573) of the first upper lip (561) and the second upper lip (571) can be in close contact with each other, and the aforementioned second lower lip (575) connected to the second upper lip (571) Both ends have second downward convex covering pieces (576) with the same length as the corresponding extension pieces (572). The aforementioned first and second downward convex covering pieces (566, 576) can be selected from arc-shaped pieces; so When folding the box, the first lower convex covering pieces (566) of the first lower lip pieces (565) can be overlapped and fixed on the first upper lip pieces (561) and the The bottom surface of the joint of the butt inclined edges (563, 573) of the second upper lip piece (571), so that the second lower convex covering pieces (576) of the second lower lip pieces (575) are sequentially overlapped and fixed on The bottom surface of the first lower convex covering piece (566) of the first lower lip piece (565) (as shown in the seventh and eighth figures) can greatly improve its structural strength, thereby achieving the purpose of preventing leakage at the corners, thereby preventing Leakage occurs.

In this way, a carton structure with good anti-leakage effect at the corners and high bonding strength is formed.

It can be seen from the foregoing structure and action description that the butt bevel edges (563, 573) used for corner butt joints in the carton structure of the present invention are respectively formed on the adjacent first upper lip piece (561) and the second upper lip piece (571). Therefore, when folded and stacked relatively horizontally, it can be kept horizontal without any height difference. The top surface of the horizontal lip of the carton structure of the present invention can be kept flat, so that the adhesive film can be pasted without being affected by the height difference. The sealing effect during bonding, and because the first and second lower convex covering pieces (566, 576) of the first and second lower lip pieces (565, 575) can be sequentially stacked and fixed on the butt joints The bottom surface of the joint of the inclined edges (563, 573) and the bottom surface of the first lower convex covering piece (566) can increase the bonding area and overlapping area, improve the bonding effect and bonding strength, and effectively improve its practicality .

And the characteristic structure of this invention can be applied to typical cartons with lids or cartons with double folding lips.

In summary, it can be understood that this product is a new product with excellent creativity. It not only effectively solves the problems faced by practitioners, but also greatly improves the efficiency. There are no identical or similar product creations in the same technical field. Or be used publicly, and at the same time it has improved efficacy. Therefore, this creation has met the requirements of "novelty" and "progress" for a new type patent, and an application for a new type patent has been filed in accordance with the law.

50:Cardboard

51: negative

52: First side vertical film

53:Second side vertical piece

54: Fold the web in half

55: Accommodation space

561:The first upper lip piece

562: Extension piece

563:Butt bevel

565: First lower lip piece

566: First lower convex covering piece

571:Second upper lip piece

572: Extension piece

573:Butt bevel

575: Second lower lip piece

576: The second lower convex covering piece

Claims (2)

A carton structure, which is composed of a piece of cardboard. The cardboard uses a plurality of pre-pressed folding lines to form a central bottom sheet, and two opposite sides of the bottom sheet extend respectively with equal heights and There are two first side standing pieces and two second side standing pieces that can be bent upward, and a triangular folded web portion is formed between the adjacent first side standing pieces and the second side standing piece, so that The first side standing pieces and the adjacent second side standing pieces can be bent relative to each other by using the folded web portions to form an upward-opening accommodation space, and the first side standing pieces are different from the edges of the bottom piece. A first upper lip piece and a first lower lip piece are respectively extended outwardly and can be folded relative to each other and overlapped horizontally. The edge of the second side vertical piece that is different from the bottom piece is respectively extended outwardly by a first upper lip piece and a first lower lip piece that can be folded relative to each other. A second upper lip piece and a second lower lip piece are folded and overlapped horizontally, which is characterized by; The two ends of the first upper lip connecting the first side vertical pieces respectively have extension pieces that exceed the length of the opposite first side vertical piece, and the extension pieces at both ends have butt inclined edges that converge toward the first side vertical piece. , and the two ends of the first lower lip connected to the first upper lip respectively have first lower convex covering pieces with the same length as the corresponding extension pieces. As for the aforementioned second upper lip connecting the second side vertical pieces, Both ends of the piece also have extension pieces that exceed the length of the opposite second side vertical piece, and the extension pieces at both ends have butt inclined edges that converge toward the second side vertical piece; Thereby, the butt bevel edges of the adjacent first upper lip and the second upper lip can be in contact with each other, and the first downward convex covering piece of the aforementioned first lower lip is superimposed and adhered to the bottom surface of the joint of the butt bevel, The second lower convex covering piece of the second lower lip piece can be overlapped and attached to the bottom surface of the first lower convex covering piece. The carton structure as claimed in claim 1, wherein the first and second downward convex covering pieces can be selected from arc-shaped pieces.

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