Bag holder

Abstract

To provide a bag body holder which has a small number of components, is robust and excellent in durability and mass productivity, is extremely easy to assemble and disassemble, can be installed and recovered in a short time, can be disassembled and easily transported when not in use, can be compactly stacked and stored, and is excellent in operability, handleability, and space saving.SOLUTION: Each frame body side 12A and side 12B of the bag holder 10 for holding the outer periphery of the bag by arranging the two frame body side walls and side 12A opposite to each other and detachably connecting the two frame body side walls and side 12B to stand by itself when in use includes an upper frame member 15 including an upper side portion 13 and an upper strut portion side 14a and side 14b extending vertically downward from both sides of the upper side portion 13 in the longitudinal direction, and a lower frame member 19 including a lower side portion 17 and a lower strut portion side 18a and side 18b extending vertically upward from both sides of the lower side portion 17 in the longitudinal direction, the upper frame member 15 and the lower frame member 19 being arranged vertically opposite to each other. An outer frame part 11 is formed by connecting the lower end side of each upper side column part 14a and 14b and the upper end side of each lower side column part 18a and 18b.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a bag holder that is mainly installed at garbage collection centers, construction sites, etc., and that holds bags for containing items to be collected, such as recyclable garbage such as cans, bottles, PET bottles, paper, plastics, and various other waste materials. [Background technology]

[0002] BACKGROUND ART Conventionally, at waste collection points set up in various locations for recyclable waste, non-burnable waste, etc., collection containers are prepared for each type of waste, and various types of waste are separated and collected by type. In particular, in recent years, the types of waste that must be separated have become more diverse in order to recycle cans, bottles, PET bottles, plastics, etc., and collection sites are equipped with a variety of collection containers, such as numerous hard basket-type or container-type containers or freestanding mesh containers, and various types of waste are carefully separated and collected. As such, much of the work of transferring the waste stored in the collection containers to garbage collection trucks, setting up the collection containers at collection sites, and putting away and cleaning the used collection containers is done manually, which poses the problem of requiring a great deal of time and effort and a large storage space. In addition, various waste materials generated at construction sites and demolition sites have been improved from the conventional methods of incineration or landfill disposal to the current method of separating them as much as possible and recovering them as resources. At these sites, waste is thrown into the opening of a garbage bag, either by manually holding it open, or, to save time, by folding the periphery of the opening of the garbage bag and attaching it to the upper annular part of a cylindrical stand. However, because the cylindrical stand on which the garbage bag is attached is integrally formed into a frame shape and has three or four support posts arranged at equal intervals between the upper and lower annular parts, if the garbage bag is inflated during collection, it is difficult to remove the garbage bag from the upper annular part or between the support posts, making the collection process more time-consuming. Furthermore, conventional cylindrical stands cannot be folded or stacked, making them difficult to remove and put away, and they also take up a lot of space on the loading platform when transporting them and in storage. In addition to the collection containers and cylindrical stands mentioned above, for example, Patent Document 1 discloses a stand for garbage bags in which two planar frame members are assembled so that they can be folded open like a floor stool, and when the legs are folded, the two frame members become nested within each other. Patent document 2 also discloses a stand for hanging garbage bags that can store waste materials, in which rotating shafts are attached to the left and right of a main shaft so that they can be opened and closed freely, and hooks for hanging the bag body are attached to the upper ends of this main shaft and the left and right rotating shafts, and the stand is equipped with stopper pieces whose stopper function is stopped when the left and right rotating shafts are closed and whose stopper function is activated when the left and right rotating shafts are open. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Registered Utility Model No. 3038240 [Patent Document 2] JP 2002-179201 Summary of the Invention [Problem to be solved by the invention]

[0004] In Patent Document 1, the bottom of the garbage bag is placed on the ground, reducing the load on the stand and allowing heavy garbage such as glass bottles to be stored stably. However, because the garbage bag is surrounded by the stand, if the garbage bag expands, it gets stuck in the stand and there is no structure to release it. As a result, it is difficult to remove the garbage bag from above or the side of the stand, which poses a problem of poor workability. Furthermore, even if the garbage bag is made of a standard material or with a method that prevents it from expanding, it must be lifted to the top of the leg-opening stand to remove the garbage bag, which poses a problem of lacking labor-saving features. Furthermore, although the load on the open-leg stand is reduced by having the bottom of the garbage bag touch the ground, when there is a large amount of garbage or when there is a lot of heavy garbage such as bottles and paper, a certain amount of load is unavoidable, and because the load is structurally placed on one point where the two frame bodies are attached to the axis, there is the problem that it is prone to breakage when unexpected loads are applied and it lacks durability. In Patent Document 2, hooks for fastening the bag body are attached to the upper ends of the main shaft and the left and right rotating shafts, but the garbage bags used for this have strings already inserted around the periphery of the opening, and they cannot be used unless a string outlet is provided on the garbage bag to correspond to the position of the hooks, which has the problem of low versatility and lack of practicality. Furthermore, the structure is complex and has many parts, making assembly time-consuming and unsuitable for mass production, and the inclusion of moving parts makes it prone to malfunctions, and even damage to one part renders the entire device unusable, resulting in problems of poor operability and long life. Furthermore, although both stands can be folded when not in use, they cannot be completely disassembled, which makes them difficult to transport before and after use, making them difficult to transport and handle.

[0005] The present invention has been made in view of the above circumstances, and aims to provide a bag holder which has few components, is robust, durable and easy to mass-produce, is extremely easy to assemble and disassemble, can be set up and removed in a short time, can be disassembled for easy transport when not in use, and can be stored by stacking it compactly, making it easy to operate, handle and space-saving. [Means for solving the problem]

[0006] A bag holder according to a first invention that achieves the above object comprises two frames having an outer frame portion that is rectangular in front view and curved in a semicircular arc in plan view, the frames being arranged opposite each other and detachably connected to each other in use so as to stand independently and thereby hold the outer periphery of a bag, The outer frame portion of each frame body is formed by an upper frame member having an upper edge portion and upper support portions extending vertically downward from one and the other longitudinal sides of the upper edge portion, and a lower frame member having a lower edge portion and lower support portions extending vertically upward from one and the other longitudinal sides of the lower edge portion, which are arranged opposite each other above and below, and the lower end sides of each upper support portion of the upper frame member are connected to the upper end sides of each lower support portion of the lower frame member.

[0007] In the bag body holder of the first invention, the upper frame member and the lower frame member are made of round bars or round pipes, and each frame body has a reinforcing pillar made of round pipe that connects the middle of the longitudinal direction of the upper edge portion of the upper frame member to the middle of the longitudinal direction of the lower edge portion of the lower frame member, and it is preferable that the upper and lower ends of the reinforcing pillar have cutout portions formed that abut and weld to the lower outer peripheral surface of the upper edge portion and the upper outer peripheral surface of the lower edge portion, respectively.

[0008] In the bag holder according to the first aspect of the present invention, the reinforcing strut preferably has an air vent opening.

[0009] In the bag body holder of the first invention, the upper frame member and the lower frame member may be made of round pipes, and the lower end of the upper support pillar on one side of the upper frame member may have an enlarged diameter portion formed thereon into which the upper end of the lower support pillar on one side of the lower frame member is fitted, and the upper end of the lower support pillar on the other side of the lower frame member may have an enlarged diameter portion formed thereon into which the lower end of the upper support pillar on the other side of the upper frame member is fitted.

[0010] A bag holder according to a second invention that meets the above-mentioned object comprises two frames having outer frame portions that are rectangular in front view and curved in a semicircular arc in plan view, which are arranged opposite to each other and detachably connected to each other in use, thereby holding the outer periphery of a bag, The outer frame portion of each frame body is formed by an upper edge member and a lower edge member arranged opposite each other at a distance from each other, and one longitudinal end of the upper edge member and one longitudinal end of the lower edge member, and the other longitudinal end of the upper edge member and the other longitudinal end of the lower edge member are each connected by a support member.

[0011] In the bag body holder of the second invention, it is preferable that the upper edge member and the lower edge member are made of a round bar or a round pipe, the support member is made of a round pipe, and the upper and lower ends of the support member have cutout portions formed therein that abut and weld to the lower outer peripheral surface of the upper edge member and the upper outer peripheral surface of the lower edge member, respectively.

[0012] In the bag body holder of the second invention, the upper edge member and the lower edge member are made of round bar or round pipe, and each frame body has a reinforcing support member made of round pipe that connects the middle of the longitudinal direction of the upper edge member to the middle of the longitudinal direction of the lower edge member, and it is preferable that the upper and lower ends of the reinforcing support member have cutout portions formed that abut and weld to the lower outer peripheral surface of the upper edge member and the upper outer peripheral surface of the lower edge member, respectively.

[0013] In the bag holder according to the second aspect of the present invention, the support member and the reinforcing support member preferably have air vent openings.

[0014] In the bag body holder of the second invention, the upper edge member, the lower edge member and the support member may be made of round bars or round pipes, and both longitudinal ends of the upper edge member and the upper end of the support member may each have an inclined end surface formed thereon that abuts and welds at an inclination angle of 45 degrees, and both longitudinal ends of the lower edge member and the lower end of the support member may each have an inclined end surface formed thereon that abuts and welds at an inclination angle of 45 degrees.

[0015] In the bag body holders of the first and second inventions, of the two frame bodies arranged opposite each other during use, it is preferable that one of the frame bodies has a hook portion attached to one side of the outer frame portion, and the other frame body has a receiving portion attached to one side of the outer frame portion that is U-shaped or L-shaped in plan view, and that the hook portion of one frame body is loosely fitted into the receiving portion of the other frame body, thereby connecting the two frame bodies so that they can be rotated in a horizontal plane. [Effects of the Invention]

[0016] The bag body holder of the first invention connects the lower end side of each upper support column of the upper frame member to the upper end side of each lower support column of the lower frame member, and simply curves the upper edge portion of the upper frame member and the lower edge portion of the lower frame member, thereby forming a frame body having an outer frame portion that is square when viewed from the front and curved like a semicircular arc when viewed from above, making it highly suitable for mass production.

[0017] In the bag body holder of the first invention, the upper frame member and the lower frame member are made of round bars or round pipes, and each frame body has a reinforcing post made of round pipe that connects the middle of the longitudinal direction of the upper edge portion of the upper frame member to the middle of the longitudinal direction of the lower edge portion of the lower frame member, and when notches are formed at the upper and lower ends of the reinforcing post that abut and weld to the lower outer peripheral surface of the upper edge portion and the upper outer peripheral surface of the lower edge portion, respectively, the upper and lower ends of the reinforcing post can be securely and firmly fixed to the upper edge portion of the upper frame member and the lower edge portion of the lower frame member, which have a circular outer periphery, thereby improving mass productivity and durability.

[0018] In the bag body holder of the first invention, if the reinforcing support has an air vent opening, bursting due to expansion of air inside the reinforcing support can be prevented when the reinforcing support is welded to the upper edge portion of the upper frame member and the lower edge portion of the lower frame member.

[0019] In the bag body holder of the first invention, if the upper frame member and the lower frame member are made of round pipes, and the lower end of the upper support column on one side of the upper frame member is formed with an enlarged diameter portion into which the upper end of the lower support column on one side of the lower frame member is fitted, and the upper end of the lower support column on the other side of the lower frame member is formed with an enlarged diameter portion into which the lower end of the upper support column on the other side of the upper frame member is fitted, the upper frame member and the lower frame member can be easily connected, and welding can be performed as necessary with the two positioned, resulting in excellent mass productivity.

[0020] The bag body holder of the second invention connects both ends of the upper edge member and both ends of the lower edge member with support members, and by simply bending the upper edge member and the lower edge member, a frame body can be formed having an outer frame portion that is square when viewed from the front and curved like a semicircular arc when viewed from above, making it highly suitable for mass production.

[0021] In the bag body holder of the second invention, if the upper and lower edge members are made of round bars or round pipes, the support members are made of round pipes, and the upper and lower ends of the support members have cutouts formed therein that abut and weld to the lower outer peripheral surface of the upper edge member and the upper outer peripheral surface of the lower edge member, respectively, the upper and lower ends of the support members can be securely and firmly fixed to the upper and lower edge members, which have circular outer peripheral surfaces, thereby improving mass producibility and durability.

[0022] In the bag body holder of the second invention, the upper and lower edge members are made of round bars or round pipes, and each frame body has a reinforcing support member made of round pipe that connects the middle of the upper edge member in the longitudinal direction to the middle of the lower edge member in the longitudinal direction, and when notches are formed at the upper and lower ends of the reinforcing support member that abut and weld to the lower outer peripheral surface of the upper edge member and the upper outer peripheral surface of the lower edge member, respectively, the upper and lower ends of the reinforcing support member can be securely adhered to the upper and lower edge members, which have circular outer peripheries, and firmly fixed, thereby improving mass producibility and durability.

[0023] In the bag body holder of the second invention, if the support member and the reinforcing support member have an air vent opening, rupture due to expansion of air inside the support member and the reinforcing support member can be prevented when the support member and the reinforcing support member are welded to the upper edge member and the lower edge member.

[0024] In the bag body holder of the second invention, when the upper edge member, lower edge member and support member are made of round bars or round pipes, and both longitudinal ends of the upper edge member and the upper end of the support member each have inclined end faces that abut and weld at an inclination angle of 45 degrees, and both longitudinal ends of the lower edge member and the lower end of the support member each have inclined end faces that abut and weld at an inclination angle of 45 degrees, the upper and lower ends of the support members can be securely and firmly fixed to both ends of the upper edge member and both ends of the lower edge member, thereby improving mass production and durability.

[0025] In the bag holders of the first and second inventions, of the two frame bodies arranged opposite each other during use, one frame body has a hook portion attached to one side of the outer frame body, and the other frame body has a receiving portion attached to one side of the outer frame body that is U-shaped or L-shaped in plan view, and the hook portion of one frame body is loosely fitted into the receiving portion of the other frame body, so that when the two frame bodies are connected so as to be rotatable in a horizontal plane, the frame body can be rotated to open the side as necessary, resulting in excellent workability in attaching and detaching the bag body. [Brief explanation of the drawings]

[0026] [Figure 1] 1 is a perspective view showing a bag body holder according to a first embodiment of the present invention. [Figure 2] 1A and 1B are a front view and a plan view, respectively, of one of the frames that constitute the bag holder. [Figure 3] 10A and 10B are a front view and a plan view, respectively, of the other frame that constitutes the bag holder. [Figure 4] (A) is an enlarged plan view of the main part showing the hook portion of the same bag body holder, (B) is an enlarged plan view of the main part showing a first modified example of the hook portion of the same bag body holder, and (C) is an enlarged plan view of the main part showing a second modified example of the hook portion of the same bag body holder. [Figure 5] FIG. 10 is a front view showing a modified frame of the bag holder. [Figure 6] FIG. 10 is a front view of a frame constituting a bag body holder according to a second embodiment of the present invention. [Figure 7] 10 is an enlarged front view of a main portion showing a frame body of a modified example of the bag body holder. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0027] Next, with reference to the accompanying drawings, an embodiment of the present invention will be described to help understand the present invention. A bag holder 10 according to a first embodiment of the present invention, shown in FIGS. 1 to 3, comprises two frames 12A, 12B, each having an outer frame 11 that is rectangular in front view and curved in a semicircular arc in plan view. The frames 12A, 12B are arranged opposite each other and detachably connected to each other to support the outer periphery of a bag (not shown). This bag holder 10 is primarily installed at garbage collection sites and construction sites, and is suitable for collecting recyclable waste and various waste materials. The installation location and the objects to be collected are selected as appropriate. The bag (not shown) is formed in a cylindrical shape with a bottom and an opening at the top. The bag (not shown) is held by the bag holder 10 by folding the periphery of the opening outward from the frames 12A, 12B while the bag holder 10 surrounds the outer periphery. Flexible containers are suitable for use as such bags, but the present invention is not limited thereto. The material, thickness, mesh size, and other factors of the bag are selected as appropriate depending on the type of items to be collected (material, shape, weight, etc.).

[0028] As shown in Figures 2(A), (B) and 3(A), (B), the outer frame portion 11 of each frame body 12A, 12B is formed by an upper frame member 15 having an upper edge portion 13 and upper support portions 14a, 14b extending vertically downward from one longitudinal side and the other longitudinal side of the upper edge portion 13, and a lower frame member 19 having a lower edge portion 17 and lower support portions 18a, 18b extending vertically upward from one longitudinal side and the other longitudinal side of the lower edge portion 17, which are arranged opposite each other above and below, and the lower end sides of the upper support portions 14a, 14b of the upper frame member 15 are connected to the upper end sides of the lower support portions 18a, 18b of the lower frame member 19. In this embodiment, the lower outer periphery of each upper support column 14a, 14b of the upper frame member 15 and the upper outer periphery of each lower support column 18a, 18b of the lower frame member 19 are butt-welded by welds 20.

[0029] The upper frame member 15 and the lower frame member 19 are made of round bars or round pipes, and each frame body 12A, 12B has a reinforcing support strut 21 made of a round pipe that connects the middle of the longitudinal direction of the upper edge portion 13 of the upper frame member 15 with the middle of the longitudinal direction of the lower edge portion 17 of the lower frame member 19. As shown in the enlarged view in FIG. 2, the upper and lower ends of the reinforcing support strut 21 are formed with notches 22 that abut and are welded to the lower outer peripheral surface of the upper edge portion 13 and the upper outer peripheral surface of the lower edge portion 17, respectively. This allows the reinforcing support struts 21 to be securely and firmly fixed to the upper and lower edge portions 13, 17, preventing deformation of the upper and lower edge portions 13, 17. In this embodiment, three reinforcing support struts 21 are arranged at equal intervals for each frame body 12A, 12B, but the number and arrangement of the reinforcing support struts 21 can be selected appropriately. The reinforcing column 21 also has an air vent opening 23. This prevents the reinforcing column 21 from bursting even if the air inside the reinforcing column 21 is heated by the heat during welding, providing excellent safety. In this embodiment, one slit-shaped (notch-shaped) air vent opening 23 is provided near (on the base side of) each of the upper and lower cutout portions 22 of the reinforcing column 21, but the shape, size, number, and arrangement of the air vent openings 23 can be selected appropriately. For example, the air vent openings 23 may be formed in the shape of a circular hole, or multiple air vent openings 23 may be arranged at intervals around the circumference of the reinforcing column 21.

[0030] Of the two frame bodies 12A, 12B, one frame body 12A has a hook portion 24 that is inverted U-shaped in front view and attached to one side of the outer frame portion 11, as shown in FIGS. 1 and 2(A) and (B), while the other frame body 12B has a receiving portion 25 that is U-shaped in plan view and attached to one side of the outer frame portion 11, as shown in FIGS. 1 and 3(A) and (B). The hook portion 24 of one frame body 12A is loosely fitted into the receiving portion 25 of the other frame body 12B, thereby connecting the two frame bodies 12A and 12B so that they can rotate within a horizontal plane. Because the receiving portion 25 of the frame body 12A is U-shaped in plan view and has an open side, a user can loosely fit (engage) the hook portion 24 into the receiving portion 25 by sliding it from the side without lifting the frame body 12B, thereby improving assembly workability. Furthermore, after collecting the items to be collected, the user can rotate frame body 12A or 12B in a horizontal plane around hook portion 24 loosely fitted in receiving portion 25, thereby widely opening the side of bag body holder 10, and the bag containing the items to be collected can be easily removed (taken out) from bag body holder 10 without having to lift it. In this embodiment, frame body 12A and 12B are provided with two hook portions 24 and two receiving portions 25, but the number of hook portions and receiving portions and their spacing can be selected appropriately. Also, receiving portion 25 may be provided on frame body 12A, and hook portion 24 may be provided on frame body 12B.

[0031] In this embodiment, the hook portion 24 has an inverted U-shape when viewed from the front, and the receiving portion 25 has a U-shape when viewed from the top. However, the hook portion and the receiving portion may be any suitable shape and combination as long as they can engage with each other and detachably connect the two frames. For example, the hook portion may be upside down and formed into a U-shape when viewed from the front. In addition, in this embodiment, as shown in FIG. 4(A), the receiving portion 25 has a U-shape when viewed from the top. However, as shown in FIG. 4(B), the receiving portion 25A has a U-shape when viewed from the top. Alternatively, as shown in FIG. 4(C), the receiving portion 25B has an L-shape when viewed from the top. These receiving portions 25A, 25B are both open on the sides, similar to the above-described receiving portion 25, so that the hook portion can be slid from the side to engage with them, which is excellent for assembly work. Also, the receiving portion can be formed into a circular cylindrical or ring shape in plan view, and the hook portion can be inserted from above to engage with it.

[0032] The two frame bodies 12A and 12B have the same shape except for the hook portions 24 and receiving portions 25, and the upper frame members 15 and lower frame members 19 constituting the frame bodies 12A and 12B are also the same shape. Therefore, the bag body holder 10 can reduce the number of parts by standardizing the shapes of the constituent members (upper frame member 15 and lower frame member 19) of the frame bodies 12A and 12B, making it easy to mass-produce. The upper side portion 13 of the upper frame member 15 and the lower side portion 17 of the lower frame member 19 are initially formed straight, and are curved into a semicircular arc after the lower ends of the upper support columns 14a, 14b of the upper frame member 15 and the upper ends of the lower support columns 18a, 18b of the lower frame member 19 are welded together. The frame bodies 12A, 12B (upper frame member 15, lower frame member 19 and reinforcing struts 21) are preferably made of a metal or alloy such as iron, aluminum, aluminum alloy, or stainless steel.

[0033] Next, a description will be given of a modified frame 12C shown in Fig. 5. Note that the same components as those in the first embodiment are given the same reference numerals and the description thereof will be omitted. Frame 12C differs from frame 12A in that upper frame member 15A and lower frame member 19A are made of round pipes, and the lower end of upper support column 14a on one side of upper frame member 15A is formed with an expanded diameter portion 27 into which the upper end of lower support column 18a on one side of lower frame member 19A fits, and the upper end of lower support column 18b on the other side of lower frame member 19A is formed with an expanded diameter portion 27 into which the lower end of upper support column 14b on the other side of upper frame member 15A fits. The expanded diameter portion 27 allows easy connection of upper frame member 15A and lower frame member 19A, and welding can be performed as needed after the two are positioned. Here, weld 20 is formed around the entire circumference of expanded diameter portion 27, but spot welding may also be performed at key locations around expanded diameter portion 27. Because the upper frame member 15A and the lower frame member 19A are point symmetrical when viewed from the front, the same member can be rotated 180 degrees to be used as the upper frame member 15A and the lower frame member 19A. Also, by fabricating a frame body with receiving portions 25 (see Figures 1 and 3(A) and (B)) instead of the hook portions 24 of the frame body 12C and combining it with the frame body 12C, it can be used as a bag holder.

[0034] Next, a description will be given of a frame 12D constituting a bag body holder according to a second embodiment of the present invention shown in Fig. 6. Note that the same components as those in the first embodiment will be given the same reference numerals and descriptions thereof will be omitted. Frame body 12D differs from frame body 12A in that outer frame portion 11 is formed by arranging an upper side member 28 and a lower side member 29 facing each other above and below with a gap therebetween, and by connecting one longitudinal end of upper side member 28 to one longitudinal end of lower side member 29 and the other longitudinal end of upper side member 28 to the other longitudinal end of lower side member 29 with support members 30. In addition, the middle of the longitudinal direction of upper side member 28 and the middle of the longitudinal direction of lower side member 29 are connected with reinforcing support members 31. Here, the top and bottom members 28 and 29 constituting the frame body 12D are made of round bars or round pipes, and the support members 30 and reinforcing support members 31 are made of round pipes. The top and bottom ends of the support members 30 and reinforcing support members 31 are formed with notches 32 that abut and are welded to the lower outer peripheral surfaces of the top and bottom members 28 and 29, respectively. The support members 30 and reinforcing support members 31 are identical members, differing only in their connection positions (mounting positions) relative to the top and bottom members 28 and 29, thereby reducing the number of parts. Furthermore, by simply welding the support members 30 to the top and bottom members 28 and 29 and then bending the top and bottom members 28 and 29 into semicircular arcs, an outer frame portion 11 that is rectangular in front view and curved into semicircular arcs in plan view can be formed. The reinforcing support members 31 may be welded before or after bending the upper and lower edge members 28, 29. A frame body having a receiving portion 25 (see Figures 1 and 3(A) and (B)) attached instead of the hook portion 24 of the frame body 12D can be manufactured and combined with the frame body 12D to be used as a bag holder.

[0035] Next, a description will be given of a modified frame 12E shown in Fig. 7. Note that the same components as those in the first and second embodiments are given the same reference numerals and the description thereof will be omitted. Frame 12E differs from frame 12D in that top member 28A, bottom member 29A, and support member 30A are made of round bars or round pipes, and both longitudinal ends of top member 28A and the upper end of support member 30A each have inclined end faces 34 that are welded at a 45-degree inclination angle, while both longitudinal ends of bottom member 29A and the lower end of support member 30A each have inclined end faces 34 that are welded at a 45-degree inclination angle. This allows the upper and lower ends of support member 30A to be securely and firmly fixed to both ends of top member 28A and both ends of bottom member 29A. Note that top member 28A and bottom member 29A are identical components, and the only difference between top member 28A, bottom member 29A, and support member 30A is their length, reducing the number of parts and improving productivity. In addition, a frame body can be produced in which a receiving portion 25 (see Figures 1 and 3(A), (B)) is attached instead of the hook portion 24 of the frame body 12D, and by combining it with the frame body 12D, it can be used as a bag body holder.

[0036] The above describes an embodiment of the present invention, but the present invention is not limited to the configurations described in the above embodiment, and also includes other embodiments and modifications that are possible within the scope of the matters described in the claims. In the above embodiment, we have described a case where each component constituting the bag holder is formed from metal or alloy and the components are connected to each other by welding, but for example, if the collection target is lightweight, each component may be formed from a synthetic resin such as polyethylene, polypropylene, or polycarbonate, and the components may be connected to each other by joining (welding, fusion, or adhesion). Furthermore, if the reinforcing columns, column members, and reinforcing column members are made of round pipes, cutouts and air vent openings are required, but they may also be made of round bars, in which case cutouts and air vent openings are not required. [Explanation of symbols]

[0037] 10: bag holder, 11: outer frame portion, 12A, 12B, 12C, 12D, 12E: frame body, 13: upper edge portion, 14a, 14b: upper support column portion, 15, 15A: upper frame member, 17: lower edge portion, 18a, 18b: lower support column portion, 19, 19A: lower frame member, 20: welded portion, 21: reinforcing column, 22: cutout portion, 23: air vent opening, 24: hook portion, 25, 25A, 25B: receiving portion, 27: enlarged diameter portion, 28, 28A: upper edge member, 29, 29A: lower edge member, 30, 30A: support member, 31: reinforcing column member, 32: cutout portion, 34: inclined end surface

Claims

1. A bag holder comprising two frames each having an outer frame portion that is rectangular in front view and curved in a semicircular arc in plan view, the two frames being arranged opposite each other and detachably connected to each other to self-support when in use, thereby holding the outer periphery of a bag, The outer frame portion of each frame body is formed by an upper frame member having an upper edge portion and upper support portions extending vertically downward from one and the other longitudinal sides of the upper edge portion, and a lower frame member having a lower edge portion and lower support portions extending vertically upward from one and the other longitudinal sides of the lower edge portion, which are arranged opposite each other above and below, and the lower end sides of each upper support portion of the upper frame member are connected to the upper end sides of each lower support portion of the lower frame member.

2. The bag holder described in claim 1, characterized in that the upper frame member and the lower frame member are made of round bars or round pipes, and each frame body has a reinforcing post made of round pipe that connects the middle of the longitudinal direction of the upper edge portion of the upper frame member to the middle of the longitudinal direction of the lower edge portion of the lower frame member, and the upper and lower ends of the reinforcing post have cutout portions that abut and weld to the lower outer peripheral surface of the upper edge portion and the upper outer peripheral surface of the lower edge portion, respectively.

3. 3. The bag holder according to claim 2, wherein the reinforcing strut has an opening for venting air.

4. The upper frame member and the lower frame member are made of round pipes, and the lower end of the upper support column on one side of the upper frame member has an enlarged diameter portion into which the upper end of the lower support column on one side of the lower frame member is fitted, and the upper end of the lower support column on the other side of the lower frame member has an enlarged diameter portion into which the lower end of the upper support column on the other side of the upper frame member is fitted.

5. The bag holder according to claim 1, characterized in that of the two frame bodies arranged opposite each other during use, one of the frame bodies has a hook portion attached to one side of the outer frame portion, and the other frame body has a receiving portion attached to one side of the outer frame portion that is U-shaped or L-shaped in a planar view, and the hook portion of one of the frame bodies is loosely fitted into the receiving portion of the other frame body, thereby connecting the two frame bodies so that they can be rotated in a horizontal plane.

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