CN-224211534-U - Three-dimensional bag

CN224211534UCN 224211534 UCN224211534 UCN 224211534UCN-224211534-U

Abstract

The utility model discloses a three-dimensional bag, wherein a bag body of the three-dimensional bag comprises a bottom surface positioned at the bottom of the bag body along the height direction, a pair of front faces and a pair of side faces, wherein the front faces and the side faces are erected on the periphery of the bottom surface, the front faces are arranged at intervals along the width direction of the bag body, the side faces are respectively connected with two side edges of the front faces, a first bag mouth folded edge bent towards the inner surface of the corresponding front face is formed at the upper end of each front face, a second bag mouth folded edge bent towards the inner surface of the corresponding side face is formed at the upper end of each side face, a folded edge bent part which is connected with the second bag mouth folded edge and extends along the height direction is formed at a guide notch which extends from the lower end of the folded edge bent part along the height direction towards the bag mouth of the three-dimensional bag. The three-dimensional bag not only can strengthen the strength of the bag mouth, but also can skillfully set a guide notch between the first bag mouth folding edge and the second bag mouth folding edge, thereby solving the problem of stacking of the corner parts of the bag mouth in the unfolding process.

Inventors

HUANG XING
XUE DAOLONG
LIU PEIWEI

Assignees

浙江欧诺机械科技股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250430

Claims (10)

1. A three-dimensional bag is characterized in that a bag body of the three-dimensional bag comprises a bottom surface positioned at the bottom of the bag body along the height direction, a pair of front surfaces and a pair of side surfaces which are erected on the periphery side of the bottom surface, wherein the front surfaces are arranged at intervals along the width direction of the bag body, the side surfaces are respectively connected with two side edges of the front surfaces, a containing cavity for placing objects is formed by surrounding the front surfaces, the side surfaces and the bottom surface, The upper end of each front face is provided with a first pocket edge bent towards the inner surface of the corresponding front face, the upper end of each side face is provided with a second pocket edge bent towards the inner surface of the corresponding side face, and The first pocket mouth hem and the second pocket mouth hem mutually meet and are formed with along the hem kink that the direction of height extends is formed with along the direction of height extends guide incision, guide incision is followed from the lower extreme of hem kink the direction of height is followed the sack orientation of three-dimensional bag.
2. The three-dimensional bag of claim 1, wherein said guide slit extends at least to a position intermediate said hem bend in said height direction, and And a connecting part for connecting the first pocket mouth hem and the second pocket mouth hem is formed on the hem bending part and above the guide notch.
3. The three-dimensional bag according to claim 2, wherein the length of the connecting portion at the hemming bending portion is between 2 and 4 times the thickness of the side wall of the bag body.
4. The three-dimensional bag of claim 1, wherein said guide slit extends in said height direction throughout said hem bend.
5. The stereoscopic pouch according to any one of claims 2 to 4, wherein the guide slit is a slit extending in the height direction.
6. The stereoscopic pouch according to any one of claims 2 to 4, wherein the guide slit is a guide notch extending in the height direction.
7. The three-dimensional bag according to claim 6, wherein the edges of both sides of the guide notch are spaced apart and extend in the height direction and the upper ends thereof are smoothly connected to each other, wherein, The guiding notch is positioned at the end of the first bag mouth hem in the length direction, or The guiding notch is positioned at the end of the second pocket edge in the width direction, or One part of the guide notch is positioned at the end part of the first pocket edge in the length direction, and the other part of the guide notch is positioned at the end part of the second pocket edge in the width direction.
8. The three-dimensional bag of claim 7, wherein, The two side edges of the guiding notch extend at equal intervals along the height direction, or The two side edges of the guide notch extend from the lower end of the folded edge bending part in the height direction with gradually reduced spacing.
9. The three-dimensional bag according to any one of claims 2 to 4, wherein each of the side surfaces includes a pair of side surfaces disposed in the width direction, each of the side surfaces is connected to the front surface corresponding to each other, ends of the pair of side surfaces adjacent to each other overlap each other, and upper ends of each of the side surfaces form an extension, ends of the pair of side surfaces adjacent to each other overlap each other, and are folded toward the inside of the bag body to form the second bag mouth gusset.
10. The three-dimensional bag according to claim 2 to 4, further comprising a pair of handles provided at the opening of the bag body and fixed to the pair of front faces, respectively, wherein a handle perforation is formed at a position corresponding to both end portions of the handles on the first bag opening folded edge of each front face, The end part of each handle stretches into the corresponding handle perforation from the inner side of the bag body, extends to the position between the first bag opening folded edge and the front surface and is fixedly connected with the inner surface of the first bag opening folded edge and the inner surface of the front surface.

Description

Three-dimensional bag Technical Field The utility model relates to the technical field of packaging, in particular to a three-dimensional bag. Background The three-dimensional bag is used as a common packaging container and is widely applied to industries such as retail industry, food industry, clothing industry and the like. The structure generally comprises a pair of front surfaces, a pair of side surfaces and a bottom surface, wherein the bottom surface is positioned at the bottoms of the pair of front surfaces and the pair of side surfaces, a plurality of surfaces are connected and enclosed to form a containing cavity with an opening, and objects can be placed into the bag body through the opening so as to be stored or transported. Generally, the bag opening of the three-dimensional bag is directly formed by the top end of the side wall of the bag body, is made of the same material as the side wall of the bag body and is opened outwards, and objects enter and exit through the bag opening, so that the bag opening of the three-dimensional bag belongs to a part which is extremely easy to wear. In order to strengthen the bag mouth strength of the three-dimensional bag, the edge part of the bag mouth is inwards bent to form a bag mouth folded edge, and the bag mouth folded edge can greatly strengthen the bag mouth strength. Meanwhile, the design of the three-dimensional bag needs to be compatible with bearing strength and folding convenience, so that the three-dimensional bag not only can bear articles well, but also can be stored and transported conveniently. In the prior art, a pair of sides of the three-dimensional bag is folded to enable the bottom surface to be folded inwards, and a pair of front sides are attached to each other, but as a pocket opening of the three-dimensional bag is formed with pocket opening folded edges, multi-layer materials (the side surfaces, the front sides and the pocket opening folded edges corresponding to the two sides) of pocket opening corners of the front sides and the side surfaces are seriously accumulated, on one hand, the folding of the bag body is greatly hindered, and on the other hand, the folded three-dimensional bag is raised at the pocket opening corners due to stacking, so that the flatness of the folded three-dimensional bag is affected. Disclosure of utility model The utility model aims to solve the technical problems that in the folding process of a three-dimensional bag in the prior art, due to the fact that bag opening folded edges are arranged at the bag opening corners of the front face and the side face, multiple layers of materials (the bag opening folded edges corresponding to the side face, the front face and the two faces) are seriously piled, on one hand, the folding of a bag body is greatly hindered, and on the other hand, the folded three-dimensional bag is protruded at the bag corners because of piling, and the flatness of the folded three-dimensional bag is affected. In order to solve the technical problems, the embodiment of the utility model discloses a three-dimensional bag, which solves the technical problems of protruding bag corner stacking and poor flatness of the traditional three-dimensional bag when the three-dimensional bag is folded. Specifically, the bag body of the three-dimensional bag comprises a bottom surface positioned at the bottom of the bag body along the height direction, a pair of front surfaces and a pair of side surfaces which are erected on the periphery side of the bottom surface, wherein the pair of front surfaces are arranged at intervals along the width direction of the bag body, the pair of side surfaces are respectively connected with two side edges of the pair of front surfaces, and a containing cavity for placing objects is formed by surrounding the pair of front surfaces, the pair of side surfaces and the bottom surface. The upper end of each front face is provided with a first pocket edge folded towards the inner surface of the corresponding front face, and the upper end of each side face is provided with a second pocket edge folded towards the inner surface of the corresponding side face. And, the hem bending part extending in the height direction, in which the first and second hem openings are connected to each other, is formed with a guide slit extending in the height direction, and the guide slit extends from the lower end of the hem bending part in the height direction toward the mouth of the three-dimensional bag. In this embodiment, the three-dimensional bag places an object through the accommodation cavity formed by the surrounding of the plurality of faces (a pair of front faces, a pair of side faces and a bottom face), and the upper edge portions of the front faces and the side faces can be reinforced respectively by the first bag mouth flange arranged at the upper end of the front face and the second bag mouth flange arranged at the upper end of the side face, so that the strength of the bag mouth