Self-standing bag sealing structure

Abstract

To provide a sealing structure for a self-standing bag body, mainly including a bag body. [Solution] The bag A has a first end surface 11 and a second end surface 12, both sides of which are sealed with a heat-seal strip S. The bottom end surface 40 also has a three-dimensional fold that allows the bag to stand upright when unfolded. A sealing portion 50 is provided at the top end of the bag. The sealing portion can be crimped with adhesive or wire to achieve leak prevention and a tight seal. The bag can be stored flat and can stand on its own on a table or the ground when in use, making it easy to pour waste into. The moisture filtering holes 30 facilitate liquid drainage and wet / dry separation. This device effectively improves the stability and convenience of the bag, making it particularly suitable for applications such as simple collection of food waste and vehicle waste.

Description

[Technical Field]

[0001] The present invention relates to a self-supporting bag closure structure, particularly one that has self-supporting and resealable functions, and is particularly applicable to applications such as food waste storage, temporary garbage bags, and waste collection bags. [Background technology]

[0002] Most conventional garbage bags or food waste bags are made of flexible film, which can provide a certain degree of waterproofing and sealing. However, in actual use, the bag does not have a support structure and cannot stand up on its own. Instead, the opening must be supported by a trash can, frame, or container before waste can be poured in. This structure not only increases the number of steps required for use, but also makes it difficult to stabilize the bag when used in a sink, resulting in frequent slippage, tilting, or collapse of the bag opening, making the food waste disposal process inconvenient and unsanitary.

[0003] Conventional garbage bags, food waste bags, and freestanding storage bags generally have problems such as "lack of support," "difficulty in sealing," and "lack of water filtering function." Therefore, how to provide a sealing structure for a freestanding bag that can be supported upright, is sealable, and has water filtering capabilities, and is low cost, is an issue that needs to be addressed as soon as possible in this technical field. Summary of the Invention [Problem to be solved by the invention]

[0004] The technical characteristics for solving the problem are as follows: [Means for solving the problem]

[0005] The self-standing bag closure structure includes a bag. The bag has a first end surface and a second end surface at the front and rear, and side end surfaces at both sides. A bottom end surface is sealed at a bottom portion corresponding to the first end surface, the second end surface, and the two side end surfaces. An open storage space is formed upward inside the bag. A vertical side center fold line is provided at the center of each side end surface of the bag. An upper inner fold edge is provided at the upper end position of the side end surface, and two lower inner fold lines forming a substantially inverted V shape are formed at the bottom end position of the side end surface. The two lower inner fold lines each extend to the bottom corner positions of the side end surface. A horizontal bottom center fold line is provided at the bottom end surface. By bending or opening the side center fold line, the upper inner fold edge, the two lower inner fold lines, and the bottom center fold line, the side end surface is folded inward or unfolded in cooperation with the first end surface and the second end surface. The closure structure of this self-standing bag is characterized as follows: a closure portion is provided near the upper edge of the first end surface, and a closure fold edge corresponding to the closure portion is provided on the second end surface. Furthermore, heat seal strips are provided near the outer edges on both sides of the first end surface and the second end surface, and a heat seal strip is provided near the outer peripheral edge of the bottom end surface. [Effects of the Invention]

[0006] In this way, the present invention utilizes the four sides, corners, and outer edge of the bottom of the bag to form a three-dimensional support strip-like structure as a self-supporting structure using heat-sealed strips. Furthermore, by combining this with the sealing design of the closure, it can be used for multiple purposes, such as portable waste collection bags, household food waste moisture filtration bags, and simple collection of garbage in cars. In addition, the present invention has multiple functional characteristics, including the ability to stand up, moisture filtration, and sealing. Furthermore, the self-supporting bag closure structure is simple in structure and easy to use, effectively improving environmental cleanliness and hygiene and practicality during use. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view of the self-standing bag sealing structure according to the present invention when it is shrunk into a flat shape. [Figure 2] FIG. 2 is a perspective view showing the unfolding process of the self-standing bag sealing structure according to the present invention. [Figure 3] FIG. 3 is a perspective view of the self-standing bag sealing structure of the present invention in use after deployment. [Figure 4] FIG. 4 is a perspective view showing a state in which the release paper is being peeled off from the sealing portion of the self-standing bag sealing structure according to the present invention. [Figure 5] FIG. 5 is a perspective view of the self-standing bag sealing structure according to the present invention after the release paper has been peeled off from the sealing portion. [Figure 6] FIG. 6 is a perspective view of the sealing portion of the self-standing bag sealing structure according to the present invention attached to a sink. [Figure 7] FIG. 7 is a perspective view showing the self-standing bag sealing structure of the present invention filtering water from waste through the filter holes. [Figure 8] FIG. 8 is a perspective view of the self-standing bag sealing structure according to the present invention, showing the sealing portion working together with the sealing fold edge to seal the bag. [Figure 9] FIG. 9 is a perspective view showing a state in which the self-standing bag sealing structure according to the present invention is in a contracted, flat state when not deployed for use, and can be stacked and stored in a storage box. [Figure 10] FIG. 10 is a perspective view of another embodiment of the self-standing bag sealing structure according to the present invention. [Figure 11] FIG. 11 is a perspective view showing another embodiment of the self-standing bag sealing structure according to the present invention, in which the top opening is crimped and sealed. [Figure 12] FIG. 12 is a perspective view showing another embodiment of the self-standing bag closure structure according to the present invention, in which the top opening is crimped to form a sealed state and then folded downward to form a folded surface state. [Figure 13]FIG. 13 is a perspective view of another embodiment of the closure structure for a self-standing bag according to the present invention, in which the top opening is crimped and folded downward to form a folded surface, and then the two side bent portions and wires are crimped inward and abutted against the corresponding closure surfaces. [Figure 14] FIG. 14 shows a case where a bag having a self-standing bag sealing structure according to the present invention may have a structure without filter holes, and the bag is made into a self-standing garbage bag structure. [Figure 15] FIG. 15 shows another embodiment of a bag having a self-standing bag sealing structure according to the present invention, in which opposing portions of the upper edges of the first and second end faces of the bag can be sealed and adhered to each other by opposing adhesive tape sealing portions. DETAILED DESCRIPTION OF THE INVENTION

[0008] 1 to 9 show preferred embodiments of the self-standing bag closure structure according to the present invention. However, these embodiments are for illustrative purposes only and do not limit the scope of the present invention.

[0009] The present invention includes the following:

[0010] Bag A is a freestanding garbage bag with a three-dimensional rectangular appearance. "Freestanding" here means that the bag can stand upright on a table or sink surface. In this embodiment, the bag can be made of PP, PE, an elastomer composite film material, or a composite film material. Elastomer composite film materials are made by adding elastomer (e.g., propylene-ethylene copolymer elastomer) to conventional materials, significantly improving the film's ductility and tear resistance while maintaining conventional strength. Other composite film materials are films made by combining two or more different materials, resulting in a composite material that combines the advantages of a single material with high strength, high toughness, heat resistance, high barrier properties, or special optical properties.

[0011] The bag A has a first end surface 11 and a second end surface 12 at the front and rear, respectively, and side end surfaces 13 at both sides. A bottom end surface 40 is sealed at the bottom corresponding to the first end surface 11, the second end surface 12, and the two side end surfaces 13. As a result, an upwardly open storage space 20 is formed inside the bag A for storing waste C.

[0012] A vertically oriented side center fold line 14 is provided in the center of each side end surface 13 of the bag body A. Corresponding to the side center fold line 14, an upper inner fold edge 15 is provided at the upper end position of the side end surface 13, and two generally inverted V-shaped lower inner fold lines 16 are formed near the bottom end of the side end surface 13. The two lower inner fold lines 16 each extend toward the bottom corners of the side end surface 13. A horizontally oriented bottom center fold line 17 is provided at a position on the bottom end surface 40 corresponding to the two lower inner fold lines 16.

[0013] The side end surfaces 13 can be folded or unfolded relative to the first end surface 11 and the second end surface 12 by bending or unfolding the side center fold line 14, the upper inner fold edge 15, the two lower inner fold lines 16, and the bottom center fold line 17. This allows the bag body A to be stored in a flat sheet-like state when not in use. Furthermore, when in use, it can be unfolded into a three-dimensional structure, making it easy to place on a table and stand it up by itself.

[0014] A sealing portion 50 is provided near the upper edge of the first end surface 11. A sealing fold edge 121 is provided on the second end surface 12 corresponding to the sealing portion 50. In this embodiment, the sealing portion 50 is in the form of an adhesive tape, and is normally covered with a release paper 51. When a user wishes to seal the bag body A, the user peels off the release paper 51 to expose the adhesive surface, and then attaches the sealing portion 50 to the sealing fold edge 121 to complete the sealing.

[0015] In use, when the storage space 20 is filled with waste C (e.g., food waste), the user folds the closure fold edge 121 and attaches it to the corresponding adhesive surface of the sealing portion 50. This completes the sealing process and allows the entire bag A to be disposed of together with the waste C, achieving the effects of easy closure and hygienic disposal.

[0016] Heat seal strips S are provided near the outer edges of both sides of the first end surface 11 and the second end surface 12. A heat seal strip S is also provided near the outer periphery of the bottom end surface 40. The heat seal strips S can form a relatively strong, strip-shaped, three-dimensional support structure by thermoplastic crimp sealing, and impart outer periphery structural strength when the bag is unfolded, allowing the bag to stand stably on a sink B or some other surface.

[0017] Additionally, the first end surface 11, the second end surface 12, and the two side end surfaces 13 of the bag A near the bottom edges, as well as the bottom end surface 40, are each provided with a plurality of filter holes 30. The filter holes 30 are used to drain moisture contained in waste C, such as food waste, so the bag A can be used as a moisture-filtering, freestanding food waste bag. By sealing the bag and discarding it after draining the liquid, the moisture weight can be effectively reduced, improving cleanliness and convenience.

[0018] See Figures 1 to 3. When not deployed, the bag body A has a volume similar to that of a contracted flat sheet, allowing it to be stacked in large quantities within the storage box D, thereby saving storage space. On the other hand, after deployment, it has a rectangular three-dimensional structure, providing good self-standing stability.

[0019] As shown in Figures 4 to 6, when a user places the bag body A in a sink B to use it, the user first peels off the release paper 51 on the sealing portion 50 to expose the adhesive surface, and then fixes it to the edge of the inner wall of the sink to ensure stable use.

[0020] Furthermore, the band-shaped support structure formed by the heat seal strip S enables the bag body to maintain the opening shape and balance of the bottom, so that the bag body can stand upright on the sink surface at the bottom of the sink.

[0021] As shown in Figures 7 and 8, after the moisture in the waste C, which is food waste, is discharged through the filter holes 30, the sealing is completed by folding the sealing fold edge 121 and attaching it to the sealing portion 50, and finally the bag body A can be disposed of together with the waste C inside.

[0022] As shown in FIG. 9, the bag body A of the present invention is extremely thin when not in use, so that it can be stacked in large numbers in a storage box D, providing good portability and space savings.

[0023] Please refer to Figures 10 to 13, which show another embodiment of the present invention.

[0024] In this embodiment, side bent portions 52A are formed by extending from both sides of the sealing portion 50A, and a plurality of wires 51A are integrally embedded inside the sealing portion 50A and the two side bent portions 52A.

[0025] When a user wishes to seal the opening of bag A, he or she first closes the opening and then folds the closed portion downward to form folded surface 53A. Then, the two side bent portions 52A, together with the internal wire 51A, are bent toward folded surface 53A to abut and fix them, thereby achieving a sealing effect.

[0026] Such a sealing structure can be used repeatedly and has plasticity, making it suitable for use in cases where multiple sealing and opening operations are required.

[0027] 14 shows another embodiment of the present invention. In this embodiment, the bag body A does not have filter holes 30 in the first end surface 11, the second end surface 12, the bottom edges of the two side end surfaces 13, or the bottom end surface 40, so it can be used as a general dry-type freestanding garbage bag. This structure is easy to manufacture and low cost, making it suitable for general household garbage collection and outdoor use.

[0028] 15 shows another embodiment of the present invention. In this embodiment, opposing adhesive tape sealing portions 50 are provided at opening portions near the upper edges of the first end surface 11 and the second end surface 12 of the bag body A. As a result, opposing portions of the upper edges of the first end surface 11 and the second end surface 12 are opposed to each other by the opposing adhesive tape sealing portions 50, allowing for sealing and adhesion.

[0029] In this way, the present invention utilizes the four sides and corners of the bag body A and the outer edge of the bottom end 40 to form a relatively sturdy, three-dimensional support strip-like structure as a self-supporting structure using the heat-seal strip S. In addition, by combining this with the sealing design of the sealing portion 50, it can be used for multiple purposes, such as portable waste collection bags, household food waste moisture filtering bags, and car trash bags.

[0030] This device has multiple functional properties, such as the ability to stand up, filter moisture, and seal. Its simple structure makes it easy to use, effectively improving environmental cleanliness and hygiene, as well as practicality during use. Therefore, it is a highly improved self-standing bag closure structure.

[0031] To sum up the above explanation, the above-mentioned structure of the present invention can effectively overcome the drawbacks of previous inventions, and furthermore, it has many of the advantages and practical value mentioned above. Therefore, the present invention is an extremely original structure, and no identical or similar product has been invented, disclosed, or used in the same technical field. Therefore, the present invention meets the requirements of "novelty" and "inventive step" for utility model patents, and therefore, the application is filed in accordance with the law. [Explanation of symbols]

[0032] A Bag body B-Sync C. Waste D Storage Box S Heat Seal Strip 11 First end surface 12 Second end face 121 Sealing fold edge 13 Side end face 14 Side center fold line 15 Upper inner fold edge 16 Bottom inner fold line 17 Bottom center fold line 20 Containment Space 30 filter holes 40 Bottom end surface 50 Sealing part 51 Release paper 50A Sealing part 51A Wire 52A Lateral bend 53A Folded Surface

Claims

1. Including a bag body, The bag body has a first end surface and a second end surface at the front and rear, Side end faces are provided on both sides, a bottom end surface is provided in a sealed manner at a bottom portion corresponding to the first end surface, the second end surface, and the two side end surfaces; An open storage space is formed upward inside the bag, A side center fold line is provided vertically at the center of each of the side end surfaces of the bag body, An upper inner folding edge is provided at the upper end position of the side end surface, Two lower inner fold lines forming a substantially inverted V shape are formed near the bottom end of the side end surface, The two lower inner fold lines each extend to a bottom corner of the side end surface, The bottom end surface has a horizontal bottom center fold line, A self-standing bag closure structure, wherein the side end surfaces are folded inward or unfolded in cooperation with the first end surface and the second end surface by bending or unfolding the side center fold line, the upper inner fold edge, the two lower inner fold lines, and the bottom center fold line, a sealing portion is provided near an upper edge of the first end surface, and a sealing fold edge corresponding to the sealing portion is provided on the second end surface; A sealing structure for a self-standing bag, characterized in that a heat seal strip is provided near the outer edges of both sides of the first end surface and the second end surface, and a heat seal strip is provided near the outer peripheral edge of the bottom end surface.

2. 2. The self-standing bag sealing structure according to claim 1, wherein the sealing portion is in the form of an adhesive tape, and is covered with a release paper in a normal state.

3. The self-standing bag sealing structure according to claim 1, wherein a side bend is formed on each side of the sealing portion, and a plurality of wires are integrally embedded inside the sealing portion and the two side bends.

4. The self-standing bag sealing structure according to claim 1, wherein the bag is made of PP, PE, elastomer composite film material, or composite film material.

5. 2. The self-standing bag sealing structure according to claim 1, wherein a plurality of through-holes are provided in the first end face, the second end face, the two side end faces of the bag body near the bottom edge, and the bottom end face.

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