High-strength envelope bag
By designing the R angle and reinforcement sheet at the connection between the folded part of the envelope bag and the bag body, the problem of tearing the envelope bag when loading heavy objects is solved, and a high-strength and efficient production envelope bag design is achieved.
Patent Information
- Application Number
- CN202422218831.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-11
AI Technical Summary
When loading heavy objects, existing envelope bags are easily torn at the connection between the folded part and the bag body, and the lifting opening is easily damaged by force, resulting in damage to the bag.
A high-strength envelope bag is designed. By setting the width of the first folding part is smaller than the width of the bag body and forming an R angle at the connection point, combining the second folding part that can be detachable or fastened and the reinforcement piece, the connection strength between the folding part and the bag body is improved, and the reinforcement piece is pasted at the hand-held hole to enhance the firmness.
Effectively prevent tearing between the folded part and the bag body, improve the load-bearing capacity of the envelope bag, enhance the firmness of the hand hole, save materials and improve production efficiency.
Smart Images
Figure CN223188003U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of packaging bags, and particularly to a high-strength envelope bag. Background Art
[0002] Existing express envelope bags are all disposable. People can often see such disposable express envelope bags. After being used, except for the seal being damaged, the rest are intact. However, after being used, such express envelope bags are often treated as waste. In addition, there is currently a bubble envelope bag formed by adding an airbag film inside the envelope bag. A carrying handle is provided at the upper part of the bubble envelope bag, so that users can easily carry it by hand and use the bubble envelope bag as a carrying bag. However, the folding part of the existing envelope bag is generally of the same width as the bag body. When the envelope bag contains heavy items, it is easy to tear at the fold, resulting in damage to the envelope bag; in addition, due to the large force at the carrying handle, it is also easy to cause tearing damage. Content of the Utility Model
[0003] The utility model discloses a high-strength envelope bag, aiming to improve the problems mentioned above.
[0004] The utility model adopts the following scheme:
[0005] A high-strength envelope bag includes a bag body, a bag mouth is formed on the bag body, a first folding part and a second folding part are arranged at the bag mouth of the bag body, a first carrying handle hole is arranged on the first folding part, and the first folding part is adapted to fold inwards or outwards at the bag mouth; a second carrying handle hole matching the first carrying handle hole is arranged on the second folding part, and the second folding part is adapted to be connected to the outside of the bag body in a detachable connection manner or by fastening after folding to close the bag mouth; the width of the first folding part is smaller than the width of the bag body, and an R angle is formed at the connection edge between the first folding part and the bag body to improve the strength of the connection edge between the first folding part and the bag body.
[0006] Further, the first folding part folds inwards at the bag mouth to be hidden inside the bag body.
[0007] Further, reinforcing sheets are attached to the peripheries of the first carrying handle hole and the second carrying handle hole to improve the firmness at the carrying handle holes.
[0008] Further, the reinforcing sheets are attached to the first carrying handle hole and the second carrying handle hole by glue.
[0009] Further, the bag body, the first folding part and the second folding part are integrally formed.
[0010] Further, the height of the first folding part is 30 mm to 180 mm.
[0011] Further, the height of the first folding part is 90 mm to 100 mm.
[0012] Further, the height of the first folding part is 96 mm.
[0013] Further, a rubber strip and a tear strip are provided at one end of the second folding part far from the bag body. The tear strip is arranged between the rubber strip and the second handle hole, and a release paper is covered on the rubber strip.
[0014] Further, the bag body includes a bubble film to improve the shock resistance of the envelope bag.
[0015] Beneficial effects:
[0016] In this solution, by setting the width of the folding part to be smaller than the width of the bag body, and forming an R angle at the edge connection between the folding part and the bag body to improve the strength of the connection edge between the folding part and the bag body, the situation of edge tearing at the connection between the folding part and the bag body can be effectively reduced; in addition, on the outside of the handle hole, by pasting, the patch is directly attached during production, which strengthens the firmness around the handle hole, saves materials, improves production efficiency, and can improve the comfort of carrying, and enables the bag body to bear a weight of more than 10 KG. Description of the drawings
[0017] Figure 1 is a schematic structural view of a high-strength envelope bag according to an embodiment of the present invention;
[0018] Figure 2 is a schematic structural view of the unfolded high-strength envelope bag according to an embodiment of the present invention;
[0019] Icons: bag body 1, first folding part 2, first handle hole 3, second folding part 4, second handle hole 5, R angle 6, rubber strip 7, tear strip 8, release paper 9, reinforcement piece 10. Specific embodiments
[0020] Combined with Figure 1 and Figure 2As shown in the figure, this embodiment provides a high-strength envelope bag, including a bag body 1. A bag mouth is formed on the bag body 1. At the bag mouth of the bag body 1, a first folding part 2 and a second folding part 4 are provided. A first handle hole 3 is provided on the first folding part 2, and the first folding part 2 is adapted to fold inwards or outwards at the bag mouth. A second handle hole 5 matching the first handle hole 3 is provided on the second folding part 4, and the second folding part 4 is adapted to be connected to the outside of the bag body 1 in a detachable connection manner or by fastening after folding to close the bag mouth. The width of the first folding part 2 is smaller than the width of the bag body 1, and an R corner 6 is formed at the connection edge between the first folding part 2 and the bag body 1 to improve the strength of the connection edge between the first folding part 2 and the bag body 1.
[0021] In this embodiment, the bag body 1 can be formed by folding an envelope paper to form a receiving space suitable for accommodating an object, and the bag body 1 has a bag mouth for loading the object into the bag body 1. Sealing parts with a certain width are formed at the bottom and both sides of the bag body 1 to improve the strength of the bag body 1. The bag body 1 can be oil paper, DuPont paper, etc., or can be provided with a layer of bubble film to improve the shock-proof ability of the envelope bag, thereby forming a bubble envelope bag. This embodiment takes the bubble envelope bag as an example for illustration. The material of the bubble envelope bag is prior art and not the focus of this application, so it will not be elaborated here.
[0022] The first folding part 2 and the second folding part 4 are formed by the bag body 1 extending outwards from both sides of the bag mouth. The first handle hole 3 and the second handle hole 5 are respectively provided on the first folding part 2 and the second folding part 4 for the user to carry by hand. When the first folding part 2 and the second folding part 4 are erected, the second handle hole 5 on the second folding part 4 exactly overlaps with the first handle hole 3, thus forming a handle position for the user's hand to pass through. A glue strip 7 and an easy-tear strip 8 are provided at one end of the second folding part 4 away from the bag body 1. The easy-tear strip 8 is provided between the glue strip 7 and the second handle hole 5, and a release paper 9 covers the glue strip 7.
[0023] In one embodiment, the bag body 1, the first folding part 2, and the second folding part 4 are integrally formed. That is, the cut paper sheet is formed into the bag body 1 through processes such as folding and gluing by equipment; then the first folding part 2 is directly folded into the interior of the bag body 1 along the bag opening to hide the first folding part 2 and prevent it from cutting hands when loading items; when sealing, the second folding part 4 is folded towards the direction of the bag opening so that the second folding part 4 covers the bag opening, and then the release paper 9 is torn off to make the adhesive strip 7 adhere to the outer side of the bag body 1 to close the bag opening; when opening the envelope bag, the easy tear strip 8 is pulled up forcefully from one end; since the easy tear strip 8 is arranged between the second handle hole 5 and the adhesive strip 7, part of the adhesive strip 7 remains on the bag body 1. When the easy tear strip 8 is completely pulled up, the restriction on the part of the second folding part 4 above the adhesive strip 7 is released, so that the second folding part 4 can be erected and the first folding part 2 can be turned out from the bag body 1 again. At this time, the height positions of the first handle hole 3 and the second handle hole 5 overlap, so this envelope paper can be used as a handbag. Since the width of the first folding part 2 is smaller than the width of the bag body 1, and an R corner 6 is formed at the connection edge between the first folding part 2 and the bag body 1, the strength of the connection edge between the first folding part 2 and the bag body 1 is improved, so that when a heavier object is placed in the envelope bag, the connection edge between the first folding part 2 and the bag body 1 is not easily torn, and the weight that the bag body 1 can bear is increased. Production by integral molding can improve production efficiency and reduce production costs.
[0024] In this embodiment, the second folding part 4 is connected by a fastening method, which can be fixed by gluing with the adhesive strip 7 mentioned above or connected and fixed by means of silk threads, etc. Destructive unsealing is required when unsealing.
[0025] It should be noted that in other embodiments, the second folding part 2 can also be detachably connected to the bag body 1 by structures such as ropes and buckles to facilitate unsealing.
[0026] Combined Figure 2 As shown, in the preferred embodiment, a crease line is respectively formed at the connection of the first folding part 2, the second folding part 4 and the bag body 1 to facilitate the first folding part 2 and the second folding part 4 to quickly fold and cover the bag opening. The crease line can ensure the accurate folding position during folding. The height a of the first folding part 2 is 30 mm to 180 mm. Preferably, the height a of the first folding part 2 is 90 mm to 100 mm; at this height, the user has a higher comfort when using the handle hole. In particular, in one embodiment, the height a of the first folding part 2 can be set to 96 mm, which is more ergonomic, and has the functions of hiding and beautifying, being convenient to open, not cutting hands, and being easy for users to use twice or multiple times. It should be noted that the height of the first folding part 2 can be cut and set according to the usage needs to meet the needs of different users.
[0027] In one embodiment, reinforcing sheets 10 are attached to the peripheries of the first carrying hole 3 and the second carrying hole 5 to improve the firmness at the carrying holes. The reinforcing sheets 10 are attached to the first carrying hole 3 and the second carrying hole 5 by means of adhesive. The reinforcing sheets 10 can be kraft paper, plastic sheets, etc. A hole of the same size as the carrying hole is provided on the reinforcing sheet 10, and the reinforcing sheet 10 is directly attached to the carrying hole as needed, thereby improving the strength at the first carrying hole 3 and the second carrying hole 5, achieving the effects of saving materials and improving production efficiency. At the same time, the comfort of carrying is improved, and the weight-bearing capacity of the body of the bubble envelope bag exceeds 10 KG, greatly improving the bearing capacity of the bag body 1. When the equipment is producing, the patches can be directly attached at the handle holes, and different customers' weight-bearing requirements can be met by replacing the patch materials.
[0028] In this solution, the front and back bag bodies of the envelope bag are integrated, and the assembly including the patches is all completed by the equipment at one time. The envelope bag provided by the present utility model has the advantages of being beautiful and practical, saving materials, improving production efficiency, being convenient to open, not cutting hands, and having firm sealing.
[0029] It should be understood that the above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the idea of the present utility model belong to the protection scope of the present utility model.
[0030] The above introduction to the drawings used in the embodiments only shows some embodiments of the present utility model and should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.
Claims
1. A high-strength envelope bag, comprising a bag body, wherein a bag opening is formed on the bag body, characterized in that: The bag body is provided with a first folding portion and a second folding portion at the bag opening, the first folding portion is provided with a first hand-carrying hole, and the first folding portion is suitable for being folded inward or outward at the bag opening; the second folding portion is provided with a second hand-carrying hole matching the first hand-carrying hole, and the second folding portion is suitable for being connected to the outside of the bag body in a detachable connection or a fastening manner after being folded to close the bag opening; The width of the first folded portion is smaller than the width of the bag body, and an R angle is formed at the connection between the first folded portion and the edge of the bag body to improve the strength of the edge where the first folded portion and the bag body are connected.
2. The high-strength envelope bag according to claim 1, characterized in that: The first folded portion is folded inwardly at the bag opening to be hidden in the bag body.
3. The high-strength envelope bag according to claim 1, characterized in that: Reinforcement sheets are attached to the periphery of the first and second handle holes to improve the firmness of the handle holes.
4. The high-strength envelope bag according to claim 3, characterized in that: The reinforcing sheet is attached to the first and second handle holes by means of glue.
5. The high-strength envelope bag according to claim 1, characterized in that: The bag body, the first folding portion and the second folding portion are integrally formed.
6. The high-strength envelope bag according to claim 1, characterized in that: The height of the first folding portion is 30 mm to 180 mm.
7. The high-strength envelope bag according to claim 6, characterized in that: The height of the first folding portion is 90 mm to 100 mm.
8. The high-strength envelope bag according to claim 7, characterized in that: The height of the first folding portion is 96 mm.
9. The high-strength envelope bag according to claim 1, characterized in that: The second folding portion is provided with a glue strip and an easy-tear strip at one end away from the bag body. The easy-tear strip is provided between the glue strip and the second carrying hole, and the glue strip is covered with release paper.
10. The high-strength envelope bag according to any one of claims 1 to 9, characterized in that: The bag body includes an air bubble film to improve the shockproof capability of the envelope bag.