Shape retainer for garbage bag

Abstract

To provide a shape retainer for a garbage bag, which can smoothly perform operation of fixing an end of the garbage bag to a frame body and can retain the shape of an opening of the garbage bag.SOLUTION: A shape retainer for a garbage bag can smoothly perform operation of fixing an end of the garbage bag to a frame body, and can maintain the shape of an opening of the garbage bag.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a shape retainer for a garbage bag. [Background technology]

[0002] Patent Document 1 describes a garbage bag holder that is configured by fixing a frame to a stand that supports a vertically extending support pole to prevent the support pole from falling over. The frame and the stand are fixed to the support pole so that they can rotate. It is said that the frame and the stand can be folded to reduce the bulk during storage. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-237527 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the holder of Patent Document 1, the frame is square. The end of the garbage bag is hung on the square frame, and the frame and the end of the garbage bag are fixed. When hanging the garbage bag on the frame, tension is applied to the end of the garbage bag to stretch the fabric of the garbage bag while fixing the garbage bag to the frame. In this case, if the width of one end of the frame and the width of the other end are equal, it may be difficult to fix the garbage bag to the frame due to the tension of the garbage bag. In addition, when the width of one end of the frame and the width of the other end of the frame are equal, if the dimensions of the frame are small compared to the dimensions of the opening of the garbage bag, the garbage bag may easily fall off the frame.

[0005] The present invention aims to provide a shape retainer for a garbage bag that enables smooth fixing of the end of the garbage bag to a frame body and can maintain the shape of the opening of the garbage bag. [Means for solving the problem]

[0006] The above problem is solved by a garbage bag shape retainer that retains the shape of the opening of a garbage bag, the shape retainer being formed of a frame body having an opening and a wide portion with different widths at one end and the other end, and that retains the shape of the opening of a garbage bag by hanging an end of the garbage bag on the frame body having the wide portion. The frame body of the shape retainer has a wide portion and a portion that is narrower than the wide portion. The narrow portion makes it easier to relieve tension on the end of the garbage bag when hanging the garbage bag on the frame body, and allows the end of the garbage bag to be smoothly fixed to the garbage bag shape retainer. Furthermore, the end of the garbage bag is held in a more stable state by the wide portion.

[0007] In the above-mentioned garbage bag shape retainer, it is preferable to provide protrusions at the corners of the frame body that press against the garbage bag. By having the protrusions bite into the fabric of the garbage bag hung on the frame body, the garbage bag becomes less likely to fall off the frame body.

[0008] In the above-mentioned garbage bag shape retainer, the corners of the frame are preferably formed in a substantially arc shape, which makes it possible to smoothly hang the end of the garbage bag on the frame, without the garbage bag getting caught on the corners of the frame when hanging the end of the garbage bag on the frame.

[0009] In the above-mentioned garbage bag shape retainer, it is preferable to provide protrusions at the corners of the frame to increase the contact area between the garbage bag and the frame, thereby making it more difficult for the garbage bag to fall off the frame.

[0010] In the above-mentioned garbage bag shape retainer, it is preferable that the side wall of the frame has a tapered portion that is inclined from the lower end side of the frame to the upper end side of the frame, so that when the end of the garbage bag is hung on the frame, the end of the garbage bag can be hung on the frame more smoothly.

[0011] In the above-mentioned garbage bag shape retainer, it is preferable that the corners of the frame are provided with reinforcing parts that are bridged across the frame, which is made up of one side and another side that intersects with the first side. This makes it possible to suppress deformation of the frame caused by the weight of the garbage bag or the contents placed in the garbage bag. Also, when the garbage bag shape retainer is used by hand, deformation of the frame can be suppressed.

[0012] In the above-mentioned garbage bag shape retainer, it is preferable that the wide part of the frame is shaped to conform to the ground, and that the wide part of the frame is placed against the ground to sweep garbage into the garbage bag from the wide part of the frame. This allows the garbage bag shape retainer to be used like a dustpan, and the swept-up garbage can be directly swept into the garbage bag.

[0013] In the above-mentioned garbage bag shape retainer, it is preferable that the garbage bag shape retainer is made of a synthetic resin film, and the bottom surface of the frame has a shape with an opening formed when the garbage bag is demolded. In this configuration, the garbage bag shape retainer can be mass-produced using a mold. By making the garbage bag shape retainer out of a synthetic resin film, it is possible to make the garbage bag shape retainer lightweight. In addition, it is also convenient to store.

[0014] In the above-mentioned garbage bag shape retainer, the garbage bag shape retainer may be formed by vacuum molding, injection molding, or pulp molding.

[0015] In the above-mentioned garbage bag shape retainer, the garbage bag shape retainer can be made of at least one material selected from the group consisting of synthetic resin, paper, cardboard, wood, and metal.

[0016] The garbage bag shape retainer described above does not have a support for fixing the position of the garbage bag shape retainer, and is preferably shaped so that the frame can be held by hand when used. With the end of the garbage bag hung on the garbage bag shape retainer, the garbage bag shape retainer can be freely moved together with the garbage bag for use. Effect of the Invention

[0017] According to the present invention, it is possible to provide a garbage bag shape retainer that can smoothly fix the end of a garbage bag to a frame body and maintain the shape of the opening of the garbage bag. [Brief description of the drawings]

[0018] [Figure 1] FIG. 2 is a perspective view showing an example of a shape retainer for a garbage bag, viewed from diagonally above. [Diagram 2] 2 is a perspective view showing the shape of the bottom side of the shape retainer for the garbage bag in FIG. 1. FIG. [Diagram 3] FIG. 2 is a bottom view of the shape retainer of the garbage bag of FIG. 1. [Figure 4] FIG. 2 is a plan view of the shape retainer of the garbage bag of FIG. 1. [Diagram 5] FIG. 2 is a front view of the shape retainer for the garbage bag of FIG. 1. [Figure 6] FIG. 2 is a left side view of the shape retainer for the garbage bag of FIG. 1. [Figure 7] 2 is a photograph showing a garbage bag hung on the garbage bag shape retainer of FIG. 1. [Figure 8] 2 is a photograph showing the state in which the shape retainer of the garbage bag in FIG. 1 is grasped. [Figure 9] FIG. 11 is a plan view showing another example of a shape retainer for a garbage bag. [Figure 10] FIG. 9 is a front view of the shape retainer for the garbage bag. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] The shape-retaining device for garbage bags of the present invention (hereinafter, simply referred to as the shape-retaining device) will be described below. The embodiments shown below are merely limited examples of the embodiments of the present invention, and the technical scope of the present invention is not limited to the exemplified embodiments.

[0020] [First embodiment] Figures 1 to 8 show one embodiment of a garbage bag shape retainer. The garbage bag shape retainer 1a of this embodiment is equipped with an opening 112a and is composed of a frame 11a having a wide portion 111a whose one end and the other end have different widths. As shown in Figures 7 and 8, the end of the garbage bag is hung on the frame 11a having the wide portion 111a to retain the shape of the opening of the garbage bag 9.

[0021] As shown in Figs. 3 and 4, the frame 11a of the shape retainer 1a has a wide portion 111a and a portion 113a that is narrower than the wide portion 111a. The narrow portion 113a makes it easier to relax the tension on the end of the garbage bag 9 when the garbage bag 9 is hung on the frame 11a, and allows the end of the garbage bag 9 to be smoothly fixed to the shape retainer 1a. The end of the garbage bag 9 is expanded by the wide portion 111a, so that it is held in a more stable state. In the wide portion 111a, the distance between the two opposing sides that constitute the frame 11a is larger than the distance between the two opposing sides that constitute the frame 11a in the narrow portion 113a. A bending point that changes the inclination angle of the side may be provided between the wide portion 111a and the narrow portion 113a, as shown in Figs. 3 and 4.

[0022] In the garbage bag shape retainer 1a, the frame body 11a is made of a synthetic resin film, and as shown in FIG. 2, the bottom surface of the frame body 11a has an opening 114 formed during demolding. The frame body 11a can be formed, for example, by vacuum molding, in which a mold having a shape corresponding to the frame body 11a is covered with a heated synthetic resin film and molded. By forming the frame body 11a from a synthetic resin film, the garbage bag shape retainer 1a can be made lightweight. The frame body 11a has an inner side wall portion 115a, an outer side wall portion 116a, and an upper wall portion 117a that connects the inner side wall portion 115a and the outer side wall portion 116a. In this configuration, when the end of the garbage bag 9 is hung on the frame body 11a, the frame body 11a is appropriately deformed, making it possible to hang the end of the garbage bag 9 on the frame body 11a more smoothly. In addition, when transporting the shape retainers 1a, one shape retainer 1a can be stacked on top of another to reduce the space occupied by the shape retainers 1a, thereby reducing the transportation cost and labor required for transportation. The frame 11a may be formed by pulp molding in addition to vacuum molding.

[0023] As shown in Figures 5 and 6, the upper end of the inner side wall 115a or the outer side wall 116a is formed in an arc shape in which the height at the center of the frame body 1a is greater than the left and right ends of the frame body 1a in a side view. As shown in Figure 1, etc., the outer side wall 116a is provided with a step 119 extending along the extension direction of the frame body 1a. Due to the step 119, the thickness of the upper end of the side wall is smaller than the thickness of the lower end of the side wall. Due to the step 119 or the arc-shaped frame body 1a, the frame body 1a is less likely to twist when a load is input.

[0024] In the garbage bag shape retainer 1a, the corners 12a of the frame 11a are formed in an approximately arc shape, as shown in FIG. 3, with the corners rounded off. The approximately arc shape does not necessarily mean a perfect arc shape, but may have a curved line. When the end of the garbage bag 9 is hung on the frame 11a, the end of the garbage bag 9 is less likely to get caught on the corners of the frame 11a, and the end of the garbage bag 9 can be hung on the frame 11a more smoothly. Each corner 12a of the frame 11a is provided with a protrusion 13a that presses against the garbage bag 9. The protrusion 13a protrudes from the outer side wall 116a toward the outside of the frame 11a. As shown in FIG. 1, the protrusion 13a is formed in such a way that the first tapered surface 131a and the second tapered surface 132a meet at the ridgeline, and the lower end of the ridgeline forms a triangular apex when viewed from above. First tapered surface 131a and second tapered surface 132a are inclined surfaces that have an upward gradient from the lower end side to the upper end side of frame body 11a. By having the apex of protrusion 13a dig into the fabric of garbage bag 9 hung on frame body 11a, it is possible to prevent garbage bag 9 from falling off. Multiple protrusions 13a are provided at the corner located on the side where wide portion 111a is provided, and a single protrusion 13a is provided at the corner located on the side of portion 113a that is narrower than wide portion 111a.

[0025] The outer side surface 116a of the corner 12a of the frame 11a is a tapered portion that slopes upward from the lower end side to the upper end side of the frame 11a. When the end of the garbage bag 9 is hung from the upper end of the frame 11a, the tapered portion makes the width and length of the frame 11a at the upper end of the frame 11a smaller than the width and length of the frame 11a at the lower end of the frame 11a. This makes it possible to smoothly hang the garbage bag 9 on the frame 11a when hanging the end of the garbage bag 9 from the upper end of the frame 11a. In the shape retainer 1a, the side wall 116a is also shaped to have a tapered portion that slopes upward toward the upper end of the side wall in parts other than the corner 12a.

[0026] As shown in Figs. 3 and 4, the corner 12a of the frame 11a has a shape in which the reinforcing parts 3 and 4 are bridged across the frame 11a, which is composed of one side 21 and another side 22 intersecting the one side 21. In the example of Figs. 3 and 4, the one side 21 is a short side of the frame 11a, and the other side 22 is a long side of the frame 11a, but the one side and the other side may have the same length, or the relationship of short and long may be reversed. The reinforcing part 3 provided on the side of the wide part 111a is substantially triangular in an upward view, and the side wall part 31 of the reinforcing part 3 intersects the one side 21 and the other side 22. The reinforcing part 3 is provided with a plurality of recesses 32. Each recess 32 is composed of a bottom part 33, a side wall part 34, and an upper wall part 35. A reinforcing rib is formed by repeating the plurality of side wall parts 34, the bottom part 33, and the upper wall part 35. The reinforcing portion 4 provided in the portion 113b having a smaller width than the wide portion 111a has a substantially triangular shape when viewed from above, with the side wall portion 41 of the reinforcing portion 4 intersecting one side 21 and the other side 22. The reinforcing portion 4 has a single recess 42. The recess 42 is composed of a bottom portion 43, a side wall portion 44, and an upper wall portion 45. The side wall portion 44, the bottom portion 43, and the upper wall portion 45 form a reinforcing rib. Note that the reinforcing portion 4 may have multiple recesses 42, like the reinforcing portion 5.

[0027] Instead of reinforcing parts provided at the corners, as shown in Fig. 3 and Fig. 4, a display part 5 may be provided that displays the capacity of the garbage bag that the shape retainer 1a corresponds to. In the example of Fig. 3 and Fig. 4, one of the reinforcing parts 4 is the display part 5. The display part 5 has a side wall part 51 and an upper wall part 52 that are provided so as to intersect with one side 21 and the other side 22, and a numerical value indicating the capacity of the garbage bag is displayed on the upper wall part 51. In the example of Fig. 3 and Fig. 4, "45L" is displayed to indicate that the capacity of the corresponding garbage bag is 45 liters. The display part may display numbers by printing, or may be a letter display composed of projections and recesses.

[0028] As shown in FIG. 1, a protrusion 6a is provided at the corner 12a. This protrusion 6a increases the contact area between the garbage bag 9 and the side wall 116a at the corner 12a. This makes it difficult for the garbage bag 9 to slip off the frame 11a. The protrusion 6a has an outer side wall 116a extending from the lower end to the upper end of the frame 11a, an inner side wall 115a extending from the lower end to the upper end of the frame 11a, an upper wall 117a connecting the upper end of the inner side wall 115a and the upper end of the outer side wall 116a, and an inclined portion 118a that slopes downward from the upper wall 117a toward the lower end of the frame 11a along the extension direction of the frame. As shown in FIG. 1, the protrusion 6a is curved in the middle when viewed from above to form an arc-shaped corner.

[0029] As shown in Figs. 1, 3, and 4, the grip portion 7a is provided on the short side 21 opposite to the wide portion 111a. The grip portion 7a is composed of an arc-shaped inner wall portion 71 that protrudes toward the inside of the frame body 11a and extends from the lower end to the upper end of the frame body 11a, an outer side wall portion 116a that extends from the lower end to the upper end of the frame body 11a, and an upper wall portion 72 that connects the inner wall portion 71 and the outer side wall portion 116a. The arc-shaped inner wall portion 71 gives the grip portion 7a an appropriate thickness and a shape that is easy to grip. The bottom surface of the grip portion 71a is shaped to have an opening that is formed when the frame body 11a is demolded, so that when the grip portion 7a is gripped, the grip portion 7a bends appropriately, and appropriate cushioning is obtained when the frame body 11a is gripped.

[0030] The inner side wall portion 115a of the frame body 11a is provided with a plurality of ridges 8. Each ridge 8 is generally triangular in shape with a width that decreases toward the upper end of the frame body. The ridges 8 can prevent the frame body 11a from being distorted, for example, when the shape retainer 1a is grasped and lifted.

[0031] When hanging the garbage bag 9 on the shape retainer 1a, for example, as shown in Figures 7 and 8, the upper end of the garbage bag 9 is inserted into the opening 112a of the frame body 11a from the lower end side of the frame body 11a, the upper end of the garbage bag 9 is folded back, and the folded upper end of the garbage bag is placed over the frame body 11a from the upper end of the frame body 1a. In this way, the garbage bag 9 is fixed to the shape retainer 1a, and the opening of the garbage bag can be kept open. Alternatively, the garbage bag 9 may be placed over the opening of the garbage bag 9 from the lower end side of the shape retainer 1a and over the frame body 11a without folding back the upper end of the garbage bag 9.

[0032] When the garbage bag 9 is fixed to the shape retainer 1a, the opening of the garbage bag can be kept open. For example, the opening of the garbage bag 9 can be kept open even when the hands are released from the frame 11a and the shape retainer 1a is placed on the ground. Garbage can be put into the garbage bag through the opening while the shape retainer 1a is placed on the ground, or garbage can be put into the garbage bag through the opening while the shape retainer 1a is lifted up.

[0033] The shape retainer 1a for a garbage bag can be used as a dustpan. As shown in Fig. 8, the shape retainer 1a can be used by holding the gripping part 7a, placing the side of the wide part 111a on the ground, and sweeping garbage into the garbage bag from the wide part 111a of the frame body 11a.

[0034] [Second embodiment] An example of a shape retainer for a garbage bag is shown in Figures 9 and 10. Like the shape retainer 1a described above, the shape retainer 1b of this embodiment is composed of a frame 11b having a wide portion 111b whose one end and the other end have different widths, and a portion 113b whose width is narrower than the wide portion 111b.

[0035] Unlike the above-mentioned frame body 11a, the frame body 11b does not have an opening at the bottom of the frame body 11b and is composed of a solid rod-shaped frame. As shown in Figures 9 and 10, the frame body 11b has a grip part 7b on the opposite side of the wide part 111b.

[0036] As shown in Fig. 10, the grip portion 7b has a first portion 71b protruding toward the outside of the frame body 11b and a second portion 72b protruding from an end of the first portion 71b toward the upper side of the frame body. The first portion 71b and the second portion 72b are both rod-shaped. For example, when picking up the shape retainer 1b placed on the ground, the shape retainer 1b can be easily picked up by hand by gripping the second portion 72b protruding upward.

[0037] A convex portion 6b extending downward from the frame body 11b is provided at the corner portion 12b of the frame body 11b on the side where the wide portion 111b is located. The upper end of the convex portion 6b is shaped to be in a position protruding from the upper end of one side or the other side, similar to the convex portion 6a. When a garbage bag is placed on the frame body 11b, the convex portion 6b increases the contact area between the frame body 11b and the fabric of the garbage bag 9. This makes it difficult for the garbage bag 9 to fall off the frame body 11b. On the opposite side of the wide portion 111b, as shown in FIG. 10, the side wall portion 116b of the frame body 11b is shaped to protrude upward from the frame body 11b. This increases the contact area between the outer side wall portion 116b of the frame body 11b and the fabric of the garbage bag 9. This makes it difficult for the garbage bag 9 to fall off the frame body 11b.

[0038] As shown in Fig. 9, the inner side wall portion 115b in the portion 113b narrower than the wide portion 111b is shaped to have a plurality of arc-shaped recesses 73 when viewed from above. When using the shape retainer 1b as a dustpan or when grasping the shape retainer 1b, the fingers will follow the arc-shaped recesses 73, making it easier to hold the shape retainer 1b. Also, by providing the arc-shaped recesses 73, it becomes easier for the user to know where to hold the shape retainer 1b when holding it.

[0039] A protrusion 13b is provided at corner 12b of shape retainer 1b to hold the garbage bag by being inserted into the material of the garbage bag. Protrusion 13b is cone-shaped.

[0040] The shape retainer 1b can be formed, for example, by injection molding.

[0041] When hanging the garbage bag 9 on the shape retainer 1b, for example, in the same manner as the shape retainer 1a, the upper end of the garbage bag 9 is inserted into the opening 112b of the frame body 11b from the lower end side of the frame body 11b, the upper end of the garbage bag 9 is folded back, and the folded upper end of the garbage bag 9 is placed over the frame body 11b from the upper end of the frame body 11b. In this manner, the garbage bag 9 is fixed to the shape retainer 1b, and the opening of the garbage bag can be kept open. Alternatively, the shape retainer 1b may be inserted into the opening of the garbage bag 9 without folding back the upper end of the garbage bag 9, and the garbage bag 9 may be placed over the frame body 11b from the lower end side of the shape retainer 1b.

[0042] The material constituting the shape retainer 1a, 1b including the frame body is not particularly limited. The shape retainer 1a, 1b including the frame body can be made of at least one material selected from the group consisting of synthetic resin, paper, cardboard, wood, and metal. Examples of the synthetic resin include synthetic resins including thermoplastic resins such as polyolefin, polyethylene, and polystyrene. The synthetic resin may be mixed with a filler such as wood chips and fibers.

[0043] The uses of the shape retainers 1a and 1b including the above-mentioned frame body are not particularly limited. The shape retainers 1a and 1b including the above-mentioned frame body are not provided with a support for fixing the position of the shape retainer, and are not of a stationary type. The shape retainers 1a and 1b can be easily moved to any location by holding the frame body by hand. The shape retainers 1a and 1b can be suitably used for applications such as picking up trash, weeding, and cleaning work.

[0044] In the above-mentioned applications, the opening of the garbage bag often closes due to the weight of the contents placed inside the garbage bag, making it difficult to work with. By using the shape retainers 1a and 1b, it is possible to easily attach them to the opening of the garbage bag and hold the opening of the garbage bag open, making it easy to hold and transport. [Explanation of symbols]

[0045] 1a Garbage bag shape retainer 1b Garbage bag shape retainer 11a Frame 11b Frame 112a Opening (frame) 112b Opening (frame) 111a Wide section 111b Wide section 13a protrusion 13b Protrusion 12a Corner 12b Corner 6a Convex part 6b Convex part 3 Reinforcement 4 Reinforcement 114 Opening (demolding)

Claims

1. A garbage bag shape retainer that maintains the shape of the opening of the garbage bag. The shape retainer is formed of a frame body having an opening and a wide portion whose one end and the other end have different widths, The garbage bag shape retainer is provided by hanging an end of the garbage bag on the frame having the wide portion, thereby retaining the shape of the opening of the garbage bag.

2. 2. The shape retainer for a garbage bag according to claim 1, wherein the corners of the frame are provided with protrusions for pressing against the garbage bag.

3. 3. The shape-retaining device for a garbage bag according to claim 1 or 2, wherein the corners of the frame are substantially arc-shaped.

4. 3. The shape retainer for a garbage bag according to claim 1 or 2, wherein the corners of the frame are provided with protrusions for increasing the contact area between the garbage bag and the frame.

5. 3. The shape retainer for a garbage bag according to claim 1, wherein the side wall of the frame has a tapered portion that is inclined from the lower end side to the upper end side of the frame.

6. 3. The shape-retaining device for a garbage bag according to claim 1 or 2, wherein a corner of the frame body is provided with a reinforcing portion that is bridged across the frame body that is formed by one side and another side that intersects with the one side.

7. The wide part of the frame is shaped to fit the ground.

3. The shape retainer for a garbage bag according to claim 1 or 2, wherein the wide portion of the frame is placed on the ground and garbage is swept into the garbage bag from the wide portion of the frame.

8. The shape of the garbage bag is maintained by a synthetic resin film.

3. The shape retainer for a garbage bag according to claim 1 or 2, wherein the bottom surface of the frame has an opening formed when the bag is removed from the mold.

9. 3. The shape-retaining device for a garbage bag according to claim 1 or 2, wherein the shape of the shape-retaining device for a garbage bag is formed by vacuum molding, injection molding, or pulp molding.

10. 3. The shape-retaining device for a garbage bag according to claim 1 or 2, which is made of at least one material selected from the group consisting of synthetic resin, paper, cardboard, wood, and metal.

11. 3. The garbage bag shape retainer according to claim 1 or 2, which is not provided with a support for fixing the position of the garbage bag shape retainer, and the frame is held by hand when used.

Images