JP2004142838A - Frame for supporting garbage bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem wherein garbage cannot be compressed for putting it in a garbage bag for discharge since cut paper or unneeded paper being discharged from a business establishment and an office in a conventional garbage box becomes extremely bulky and the garbage bag is damaged and is torn when the paper is compressed. <P>SOLUTION: A frame body supports the garbage bag by a hollow body that is open at one and the other end. Additionally, the body of the garbage bag has a plurality of slits that are open at the other end and are extended toward one end. As a result, when the frame body is fitted into the garbage bag, the garbage does not directly come into contact with a plastic garbage bag, and the garbage bag is not damaged or cut when the garbage is compressed for disposal, thus compressing the garbage to the maximum for packing into the garbage bag. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a frame for supporting a garbage bag.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, various types of refuse are discharged from each home and each business place. In general, each household purchases a commercially available trash can and garbage container, attaches a plastic garbage bag inside it, throws away garbage in this, and throws it when it is full, At that time, measures such as putting them in multiple garbage bags and throwing them away are being implemented.
[0003]
At offices and offices, paper and plastic films are wasteful and difficult to handle because they are too heavy for waste.Especially when cutting and discarding documents, the waste It is a common occurrence that problems such as garbage bags being cut or being unable to be packed occur when trying to pack them into bags. Even at home, if you try to throw away paper, the paper garbage will be bulky and you will have to prepare several garbage bags, or the garbage bags will be cut because the edges of the folded paper are relatively sharp. Things have also happened.
[0004]
For this reason, in Japanese Patent Application Laid-Open No. 2001-05293, a part of the enclosure of the trash can is configured to be able to expand and contract, and when a proper amount of trash is introduced, the compression device is operated to compress the garbage. It has been proposed to pack the product with a packing material, take it out, and transport it to a treatment plant by truck or the like. However, such large-scale equipment can be used in very limited large-scale business establishments, and such large-scale equipment is not needed or used in homes, small business establishments, offices, etc. .
[0005]
However, in particular, garbage discharged from offices and offices is collected by each local government for a fee per garbage bag of a predetermined size, and at the same time it is compact. If it is stored in the office, it will be easy to collect, and it will save expenses for each business office.
[0006]
Therefore, in order to store such refuse compactly in a garbage bag, a device is required, but when the garbage bag is mounted in a garbage container and discarded as described above, folded paper or the like is used. There are drawbacks such as the garbage bag being cut off at the edge and pressure or friction at a particular location, causing it to be jammed or broken, and no measures have yet been found to solve this.
[0007]
[Problems to be solved by the invention]
In view of the above-described problems, the present invention has been made in consideration of the above-described problems, and when the trash is put into the trash bag, it is easy to pack the trash bag compactly, and the trash does not cut off the trash bag. An object of the present invention is to provide a frame of an auxiliary tool for a garbage bag that can be easily extracted from a garbage bag.
[0008]
[Means to solve the problem]
Then, this invention aims at solving the above-mentioned subject by the frame for supporting a garbage bag.
[0009]
The present invention relates to a frame for supporting a garbage bag, which is characterized by being formed of a hollow main body having one end and the other end opened, and more specifically,
(1) A frame body for supporting a garbage bag, wherein the frame body has a hollow body whose one end and the other end are open.
(2) A frame for supporting a garbage bag, wherein the main body has a substantially constant cross-sectional area from one end to the other end.
(3) A frame for supporting a garbage bag, wherein the hollow body has a cross-sectional area that changes from one end to the other end.
(4) A frame for supporting a garbage bag, wherein the hollow main body has a sectional area increasing from one end to the other end.
(5) The frame according to (4), wherein the main body has a shape of a substantially truncated cone or a substantially truncated cone.
(6) The frame according to (4), wherein the main body has a substantially circular or substantially elliptical cross section.
(7) The frame according to (4), wherein the main body has a shape of a substantially pyramid or a truncated pyramid.
(8) The frame according to (4), wherein the main body has a substantially triangular, substantially square, or substantially polygonal cross section.
(9) The frame body according to any one of (1) to (4), wherein the main body or a part thereof is formed in a bellows-like bent shape in which a direction from one end to the other end of the main body is a fold.
(10) It has a hollow main body opened at one end and the other end, and a plurality of slits opened at the other end and extending toward the one end are formed in the main body. Frame for supporting garbage bags.
(11) The frame according to (10), wherein the main body has a substantially circular, substantially elliptical, substantially square, or substantially polygonal cross section.
It is about.
[0010]
Hereinafter, the invention according to claims 1 to 9 may be referred to as a first invention or a first invention of the present application. Further, the invention according to claims 10 to 11 may be referred to as a second invention or a second invention of the present application.
[0011]
Therefore, the first invention of the present application will be described first. The first invention relates to a frame for supporting a garbage bag composed of a hollow main body having one end and the other end open, and any frame having such a shape can be used. For example, the hollow main body may have a substantially constant cross-sectional area from one end to the other end, or may have a cross-sectional area changing from one end to the other end, Further, when the cross-sectional area of the hollow main body changes from one end to the other end, the cross-sectional area may increase from one end to the other end. Furthermore, when there is a portion where the cross-sectional area is first constant from the one end to the other end, and then the cross-sectional area changes (for example, when the cross-sectional area increases toward the other end), the cross-sectional area increases. Finally, when the cross-sectional area becomes constant near the other end, or when there is a portion where the cross-sectional area is constant, the cross-sectional area changes (for example, the cross-sectional area increases toward the other end). The case where the area becomes constant is also included in the shape of the present invention.
Further, the hollow main body may be formed such that the whole or a part of the main body has a bellows-like bent shape in which the direction from one end to the other end of the main body is a fold.
[0012]
Further, a reinforcing member may be attached to one end and the other end. For example, a reinforcing member having a constant cross-sectional area, a reinforcing member having a smaller cross-sectional area, or a reinforcing member having a larger cross-sectional area is integrally formed at one end and / or the other end. Or separately, or may be detachably attached. In this case, the reinforcing member may be the same material as the hollow main body, or may be another material. The coloring may be the same color or different colors.
[0013]
This frame is inserted into a garbage bag, throws garbage into this frame, and then, when the thrown garbage is bulky, etc., presses the garbage into the frame as appropriate several times. By repeating this, when the frame is finally removed from the garbage bag, the compressed garbage can be compactly packed in the garbage bag. In particular, in the case of offices and business establishments, a considerable amount of paper, etc. is discharged as garbage, but usually these garbage are directly put into garbage bags, and even if you try to compress this, Although the state that the garbage bag is damaged and cut and cannot be packed has occurred, when the frame for supporting the garbage bag of the present invention is used, garbage such as paper may directly contact the garbage bag. In addition, the waste can be sufficiently compressed in the frame.
[0014]
As the shape of the hollow body, any structure can be used as long as it has a structure composed of a hollow body with one end and the other end open.
For example, the cross-sectional area may be substantially constant from one end to the other end, or the cross-sectional area may change from one end to the other end. When the cross-sectional area changes from one end to the other end, it may increase or decrease irregularly or regularly. However, it is preferable that the cross-sectional area of the one end and the other end be the same, or that the cross-sectional area of the other end be larger than the cross-sectional area of the one end. This is because such a structure makes it easier to extract garbage from the frame.
[0015]
When the cross-sectional area is regularly increased or decreased, various shapes can be considered. For example, the shape of the cross section of the frame from one end to the other end is a gentle sinusoidal shape, or the shape such that the cross-sectional area increases from one end to the other end and then decreases. It is possible that it is.
[0016]
Furthermore, a shape in which the cross-sectional area increases, for example, a shape in which the cross-sectional area increases at a constant rate, is also conceivable. When removing the refuse packed in the frame from the frame and storing it in the garbage bag, it is most preferable that the cross-sectional area be increased. This is because the garbage is easily pushed out of the frame into the garbage bag simply by pushing the packed garbage toward the other end with a small force.
[0017]
Further, the hollow main body may be formed such that the whole or a part of the main body has a bellows-like bent shape in which the direction from one end to the other end of the main body is a fold.
[0018]
In the case of a structure having a structure in which the cross-sectional area increases from one end to the other end, as a specific shape, for example, a shape of a substantially truncated cone or a substantially truncated cone, a substantially circular or substantially elliptical shape Examples include a shape having a cross-sectional area, a shape of a substantially pyramid or a truncated pyramid, or a shape having a substantially triangular, substantially square, or substantially polygonal cross section.
[0019]
Further, in these shapes, the entire body or a part thereof may be formed in a bellows-like bent shape in which a direction from one end to the other end of the main body is a fold line. With such a structure or shape, there is an additional advantage that it is easier to compress because it matches the direction in which the dust is pushed. These shapes are also included in the structure in which the cross-sectional area increases from one end to the other end.
[0020]
In addition, an auxiliary member such as a projection may be provided at a part of one end to facilitate handling of the frame.
[0021]
As the material, various materials such as plastic, metal, ceramic, wood, and plywood can be used, but plastic can be said to be the most preferable in terms of ease of manufacture, lightness, and ease of handling. , But is not limited to this. When the frame is made of plastic, the thickness of the main body becomes a problem. The greater the thickness, the better in terms of strength and the like, but on the other hand, the material cost is high and it is not practical. From this point, it is better that the wall thickness is as thin as possible, but there is a problem in strength. In such a case, the longitudinal direction from one end to the other end and the longitudinal direction It is preferable to provide a plurality of ribs in a direction perpendicular to the direction. A rib can also be provided on the inner surface, but it is expected that this rib will get caught when packing garbage, so in this case, the rib shape must be slightly devised so that it does not catch You may have to.
As the plastic material, not only ordinary vinyl chloride resin, polyethylene, polypropylene, polycarbonate, nylon resin and the like but also fiber reinforced resin such as FRP can be used.
[0022]
On the outer surface of the hollow body, not only ribs but also various characters and patterns can be attached or formed for decorative purposes.
[0023]
Furthermore, the overall shape of the frame body itself has various shapes such as a substantially circular shape, an elliptical shape, and a pyramid shape. For example, even a conical shape, a fine bellows-like shape like an umbrella is used. You may keep it. By doing so, the whole may be stretchable and easy to use, and when trying to pack the compact compactly even if it is not stretchable, the garbage may conform to this V-shaped structure. There is an advantage that it is easier to be compressed downward. However, if the frame body has a structure that allows the umbrella to be spread to a considerable extent, conversely, it is necessary to devise measures to prevent the garbage bag from being damaged or torn by the frame body so that it does not spread more than a certain amount It may be. Furthermore, it is possible to reduce the weight by appropriately drilling holes or slits in the frame body. However, depending on the size and the drilling place, there is a possibility that the garbage may come into contact with the garbage bag. Therefore, it is necessary to consider a place and size where such a situation does not occur.
[0024]
Next, the second invention of the present application will be described.
A second invention is characterized in that it has a hollow main body that is open at one end and the other end, and the main body is formed with a plurality of slits that are open at the other end and extend toward the one end. And a frame for supporting the garbage bag.
[0025]
Examples of the shape of the main body include a frame having a substantially circular, substantially elliptical, substantially square, or substantially polygonal cross section, but the present invention is not limited to this shape, and any structure having the above structure can be used. Anything can be used.
[0026]
Further, a reinforcing member may be attached to one end. For example, a reinforcing member with a constant cross-sectional area, a reinforcing member with a decreasing cross-sectional area, or a reinforcing member with a increasing cross-sectional area is attached to one end integrally or separately. Or may be removably attached. In this case, the reinforcing member may be the same material as the hollow main body, or may be another material. The coloring may be the same color or different colors. Furthermore, although the frame body sandwiched between the slits has a tongue-shaped structure, a reinforcing member may be provided integrally or separately at one end of the tongue-shaped structure.
[0027]
The frame of the second invention can be put in a garbage bag as in the first invention and can be used by mounting it in a conventional trash can or by mounting it in the frame of the first invention. When mounted in this conventional trash can, even if the conventional trash can has a smaller cross-sectional area from the top to the bottom, it can be mounted in both trash cans even when the cross-sectional area is almost constant. is there. That is, in the case of a trash can of the type in which the cross-sectional area decreases toward the bottom, a plurality of slits are formed in which the frame body is opened at the other end and extends toward the one end. Since the frame body sandwiched between the slits has a tongue-shaped structure and is bent back and forth with respect to the opening, the frame body having this tongue-shaped structure is opened inside the frame. This is because it becomes bent and bent toward the part side. On the other hand, when mounted in the frame body of the first invention, when the dust is compressed, the frame is bent outwards, that is, the outside opposite to the open portion, so that it is easily compressed and easily taken out. There are advantages. Materials used for the frame body of the second invention include metals and plastics, and plastics which are most easily formed and are inexpensive are most preferable.
[0028]
In both the first invention and the second invention, since the garbage does not come into direct contact with the garbage bag such as a polyethylene plastic bag, even if the garbage is compressed, the garbage bag may be damaged or cut. There is no. For this reason, even if the papers such as cut papers are compressed to a considerable extent, the frame body resists compression and maintains the compressed state, so not only households and small establishments but also ordinary establishments And use in offices. This makes the compacted garbage compact, so it is easy to handle, reducing the collection of garbage and reducing costs for paid collection at each office and office. Can be planned.
[0029]
Further, the present invention will be described with reference to the drawings.
First, the first invention will be described.
As shown in FIGS. 14 and 15, most of the conventional trash cans have a combination of trash can bodies 76 and 77 and their lids 72 and 73. We attach garbage bags and throw away garbage in this garbage bag. For this reason, the garbage to be discarded comes into direct contact with the garbage bag, and depending on the garbage, the garbage bag may be damaged and cut off. For this reason, it is practiced to throw the trash into a separately prepared garbage bag, tie the mouth of the garbage bag, and then throw some of the trash into the garbage bag 62 and the garbage bag 63 again.
[0030]
Especially in offices, offices and offices, a lot of paper is discharged, but the garbage of this paper is quite a curved person, and the folded paper is like an edge, In some cases, what is cut with a cutting machine may look like a knife, so if you try to pack it in a garbage bag, the garbage bag will be damaged or broken, and you will need another garbage bag, Something has happened.
[0031]
The frame of the present invention was invented from such a viewpoint, and FIG. 2 shows a perspective view of an example of the frame. The frame 1 comprises a hollow frame-shaped frame main body 10, one end above the main body and the other end below the main body, and one upper end comprises an end 20 and an open portion 21. . FIG. 3 shows a cross-sectional view of the frame 1 made of this hollow cone. The other end includes an end portion 30 and an open portion 31 as shown in FIG. FIG. 4 is a front view of the frame 1, and FIG. 5 is a top view of the frame 1. As described above, the frame 1 has a very simple structure having a circular cross section and a cross-sectional area increasing from one end to the other end. The frame 1 is made of plastic, and when the frame body is thick, it is not necessary to provide a rib for reinforcement in the longitudinal direction from the outer peripheral surface of the frame body to one end to the other end. However, when the wall is thin, it is convenient to provide such a rib for reinforcement. In this example, a rib for reinforcement is provided on the outer surface of the frame body, but is not shown. This rib is preferably provided on the outer surface also from the decorative point of view of the frame body, apart from the meaning of reinforcement, and if the wall is not necessary, a pattern or the like is provided on the outer surface from the decorative point of view. It may be provided instead.
[0032]
FIG. 1 shows an example of use of such a support frame for a garbage bag. FIG. 1 shows a cross-sectional view when used with a garbage bag. As shown in FIG. 1, the frame 1 of the present invention is mounted in the garbage bag 60, and the mouth of the garbage bag is bent inside the frame 1 so as to wrap the end 20 of the frame. The garbage bag 60 is gripped by a gripper (not shown) at the end 20 so that the garbage bag 60 does not slip out of the frame 1. The garbage 80 is put into the inside of the frame attached to the inside of the garbage bag, and the garbage is appropriately compressed downward. In the case of papers that have been cut, the compressed material acts to expand, but since the cross-sectional area decreases as it goes upward, this expanding force acts downward, so that dust is It rarely comes up. And since the frame is made of plastic, no matter how much you push it in, it won't damage the trash bag. In this way, the cut paper can be packed about three times as much as usual. And when removing the frame, the frame is designed so that the cross-sectional area increases downward, so you can easily pull out without any hindrance while holding the upper part of the garbage lightly, and the garbage is garbage This has the effect of being compactly stored in a bag. Although the lid is not shown in FIG. 1, it is sufficient to cover the lid if necessary, or it can be used without the lid where it is not necessary to cover the lid. it can.
[0033]
FIG. 6 is a perspective view of the frame 2 showing another example of the invention 1 of the present application. FIG. 7 is a top view of the frame 2, and FIG. 8 is a cross-sectional view of the frame 2. The frame 2 is composed of a frame main body 11 having a substantially rectangular quadrangular pyramid shape in cross section, and one upper end and the other lower end. The upper end has an end 22 and an opening 23. Is made up of The other lower end portion is composed of an end portion 32 and an open portion 33 as shown in FIG. The cross-sectional area increases from one end to the other end similarly to the frame 1. As a material, not only plastic but also wood can be used. The mode of use is the same as that of FIG. 1, and this frame 2 is mounted in a garbage bag for use. In the case of the frame body 1 or the frame body 2, the planes formed by the one end and the other end are parallel, but not only such parallel ones but also cut surfaces such as non-parallel truncated cones. It may be of a pyramidal type.
[0034]
FIG. 16 is a perspective view of a frame showing another example of the first invention of the present invention. In this example, it has a cylindrical shape whose cross-sectional area is substantially constant from one end to the other end, and the frame 6 has a frame having an end 50 at one end and an end 52 at the other end. It consists of a main body 15. In addition, 51 shows an opening part.
[0035]
FIG. 17 is a perspective view of a frame showing another example of the first invention of the present invention. In this example, the frame 7 has a hollow columnar shape having a substantially constant cross-sectional area from one end to the other end, and the frame 7 is formed by connecting the end 54 at one end and the end 56 at the other end. And a frame main body 16. Reference numeral 55 denotes an open portion.
[0036]
Next, the second invention of the present invention will be described.
FIG. 9 is a perspective view of the frame 3 showing one example of the second invention, and FIG. 10 is a front view of the frame 3. In FIG. 9, the frame 3 includes a hollow rectangular frame main body 12, and the other lower end of the main body includes an end portion 34 and an open portion 35. It consists of 25. A plurality of slits 40 are provided from the other end to the one end, and the portion of the frame body sandwiched between the slits becomes a tongue-shaped structure portion 41, which is bent back and forth with respect to the open portion 35. I'm sorry. In this example, the slits are designed so that the distance between the slits decreases from the other end to the one end.
[0037]
FIG. 11 shows a sectional view of a usage example in which the frame 3 of the second invention of the present invention is mounted on a conventional trash can. This conventional trash box is composed of a trash box main body 75 and a lid 71, and the trash box main body 75 has an inverted quadrangular pyramid shape such that the cross-sectional area decreases from the upper opening toward the bottom. Therefore, first, the garbage bag 61 is mounted on the garbage box main body 75, and then the frame 3 of the second invention shown in FIG. 9 is put inside the garbage bag. It is folded and attached so as to enclose the end 24. Alternatively, first, the frame 3 is put in the garbage bag 61, and then put into the garbage box main body 75 for mounting. Since a tongue-shaped structure 41 is formed by a slit at one end of the frame 3, the structure 41 bends to the inside of the frame. It serves to prevent contact with the garbage bag. In this way, when the cut papers are packed in the garbage bag, the refuse 81 can be stuffed into the frame without contacting the garbage bag 61. As an advantage of using such a frame, the conventional trash can can be used as it is, and the garbage bag is not damaged or broken because the garbage does not contact the garbage bag. It can be packed.
[0038]
FIG. 12 is a perspective view showing another example of the second invention. In FIG. 12, the frame 4 comprises a hollow cylindrical frame main body 13 and the other lower end of the main body has an end 36 and an open portion 37, and the upper end similarly has an open end 26. A plurality of slits 42 are provided from the other end toward the one end, and the frame body sandwiched between the slits becomes a tongue-shaped structure portion 43 with respect to the open portion 37. It bends back and forth. This frame 4 is suitable for a conventional trash can having a circular cross section.
[0039]
FIG. 13 is a perspective view showing a frame 5 of another example of the second invention. In FIG. 13, the frame 5 comprises a hollow cylindrical frame body 14 and the other lower end of the main body has an end 38 and an open portion 39, and the upper end similarly has an open end 28. A plurality of slits 44 are provided from the other end to one end, and the frame body sandwiched between the slits becomes a tongue-shaped structure portion 45 with respect to the open portion 39. It bends back and forth. The frame 5 is suitable for a conventional trash can having a square cross section.
[0040]
In the above examples, both the first invention and the second invention have a specific shape, but of course, various shapes such as an elliptical shape, a triangular shape, a polygonal shape such as a pentagonal shape can be used. .
[0041]
【The invention's effect】
Since both the first invention and the second invention have the above-described configuration, the garbage does not come into direct contact with the garbage bag, and the garbage bag is damaged or cut even when the garbage is compressed. There is nothing. For this reason, even if the papers such as the cut papers are compressed to a considerable extent or to the maximum, the frame body can withstand this compression and maintain the compressed state. The frame can be easily removed from the garbage bag, and the compressed garbage can be stored in the garbage bag and discharged in a compact state. it can. For this reason, the handling of garbage becomes easy, the collection work of garbage can be reduced, and the cost can be reduced for the fee collection at each office or office. In addition, since the frame of the second invention can use a trash can already in a business place or at home, it is very convenient to discharge cut papers and other papers in a compact size.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an example in which a garbage bag is mounted on a frame showing an example of the first invention of the present invention.
FIG. 2 is a perspective view of a frame showing an example of the first invention of the present invention.
FIG. 3 shows a sectional view of the frame shown in FIG. 2;
FIG. 4 shows a front view of the frame shown in FIG.
FIG. 5 shows a top view of the frame shown in FIG.
FIG. 6 is a perspective view of a frame showing another example of the first invention of the present invention.
FIG. 7 shows a top view of the frame of FIG.
FIG. 8 shows a sectional view of the frame of FIG.
FIG. 9 is a perspective view of a frame showing an example of the second invention of the present invention.
FIG. 10 shows a front view of the frame of FIG. 9;
FIG. 11 is a cross-sectional view showing a case where the frame shown in FIG. 9 is attached to a conventional trash box together with a trash bag.
FIG. 12 is a perspective view showing another example of the frame according to the second invention of the present invention.
FIG. 13 is a perspective view showing another example of the frame according to the second invention of the present invention.
FIG. 14 is a cross-sectional view showing a case where a garbage bag is attached to a conventional trash can.
FIG. 15 is a sectional view showing a case where a garbage bag is attached to another type of conventional trash can.
FIG. 16 is a perspective view of a frame showing another example of the first invention of the present invention.
FIG. 17 is a perspective view of a frame showing another example of the first invention of the present application.
[Explanation of symbols]
1, 2, 3, 4, 5, 6, 7: Frame
10, 11, 12, 13, 14, 15, 16: Frame body
20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 50, 52, 54, 56: End
21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 51, 55: Opening section
40, 42, 44: slit
41, 43, 45: tongue-shaped structure
60, 61, 62, 63: Garbage bag
71, 72, 73: Lid
75, 76, 77: Recycle bin body
80, 81: Garbage

Claims (11)

A frame for supporting a garbage bag composed of a hollow main body having one end and the other end open. 2. The frame for supporting a garbage bag according to claim 1, wherein the hollow body has a substantially constant cross-sectional area from one end to the other end. 2. The frame for supporting a garbage bag according to claim 1, wherein a cross-sectional area of the hollow main body changes from one end to the other end. 4. The frame for supporting a garbage bag according to claim 3, wherein the hollow body has a larger cross-sectional area from one end to the other end. 5. The frame according to claim 4, wherein the main body has a shape of a substantially truncated cone or a substantially truncated cone. 5. The frame according to claim 4, wherein the main body has a substantially circular or substantially elliptical cross section. The frame according to claim 4, wherein the main body has a shape of a substantially pyramid or a truncated pyramid. 5. The frame according to claim 4, wherein the main body has a substantially triangular, substantially quadrangular, or substantially polygonal cross section. The frame body according to any one of claims 1 to 4, wherein the hollow body or a part thereof is formed in a bellows-like bent shape in which a direction from one end to the other end of the main body is a fold. A garbage bag having a hollow main body opened at one end and the other end, wherein the main body is formed with a plurality of slits opened at the other end and extending toward one end. Frame to support. The frame according to claim 10, wherein the main body has a substantially circular, substantially elliptical, substantially square, or substantially polygonal cross section.

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