JP7412720B1 - Tire holder and tire holder manufacturing method - Google Patents

Abstract

[Problem] When using conventional tires for fenders, in the radial tires that are currently widely used, a metal fiber called a belt is provided as a reinforcing layer under the rubber layer on the surface. There was a problem in that the presence of metal fibers made it impossible to easily drill through holes. [Solution] The tire holder 1 determines the length of each part based on the relationship between the inner radius Ri of the tire 7 and the radius Rr of the rim hole 73 of the tire, is inserted into the inner space of the tire 7, and is suspended by a hanging tool 8. By being lowered, the tires 7 can be used for fending. [Selection diagram] Figure 2

Description

The present invention is provided on the quay of the sea, lake, or river, or on the quay or pier of a port provided on the sea, lake, or river, or on the side of a ship that approaches the quay or pier, and is hung to soften the impact when the ship approaches the berth. The present invention relates to a tire holder for hanging scrap tires that are used after being lowered, and a method for manufacturing the tire holder.

BACKGROUND ART Conventionally, in order to hang a waste tire from a quay or a ship's side using a hanging device such as a chain, wire, or rope, a method has been proposed in which a hole is drilled in the waste tire and the hanging device is attached thereto.

Japanese Patent Application Publication No. 2001-288729

However, with regard to the title of the invention in Patent Document 1, ``Fender using tires and connection support device for the fender'', it was necessary to drill through holes 8 in the tire body 2, as described above. However, there is a problem in that most of the currently discarded and easily available scrap tires are tubeless radial tires.

In the case of this radial tire, metal fibers called a belt are provided as a reinforcing layer under the surface rubber layer, and the presence of these metal fibers improves durability. However, when a through-hole 8 is made in a waste tire and used for fender as in Patent Document 1, it is not easy to make the through-hole 8 because of the metal fiber reinforcing layer. The problem was that I couldn't do it.

In particular, waste tires used for fenders were mostly bus and truck tires because they could be used on large ships and were easily available. This means that in order for a waste tire to perform its fender function, it must have a certain elasticity, a tire width (cross-sectional width), and a tire thickness (cross-sectional height) that has a large area of contact with the ship. This is because waste tires for buses and trucks are larger than waste tires for passenger cars, making them even more difficult to process.

In addition, since the through hole 8 is drilled in the waste tire, unreasonable force is applied to the through hole due to a machining error or the metal hook portion 5 passing through the through hole, resulting in cracks in the through hole 8 portion. There was a problem in that the durability was impaired.

In order to solve the above problems, the present invention takes the following technical measures.

The tire holder of the first invention includes two upper end portions that support the tire at the upper inner side of the tire, and two locking tools provided at positions that are lowered approximately parallel to the upper end portions of the two locations. and a lower end portion disposed approximately vertically below at least one of the upper end portions and below the attachment points of the two locking devices. A straight line length connecting the upper end portions of the two locations is the maximum length that allows the tire holder to be inserted into the tire, and a substantially vertical length connecting the upper end portion to the lower end portion. The length is such that the tire holder is prevented from rotating in the lateral direction inside the tire, and extends from the upper ends of the two locations to the attachment locations of the two anchoring tools that are lowered approximately parallel to each other. The length in the substantially vertical direction is such that the attachment points of the two locking tools are within the upper semicircle of the rim hole of the tire, and the length is inserted into the inner space of the tire and suspended by a hanging tool. The tires are used for fenders.
The tire holder of the second invention includes two upper end portions that support the tire at the upper inner side of the tire, and two locking tools provided at positions lowered approximately parallel to the two upper end portions. a lower end portion located substantially vertically below at least one of the upper end portions and below the attachment points of the two locking devices, and the two locking portions. In a tire holder, in which a fastening member for fastening a fastening tool is provided at each attachment point of the tool, the straight line length connecting the upper ends of the two locations is the maximum length that the tire holder can be inserted into the tire. the length in the substantially vertical direction connecting the upper end to the lower end is set to a length that can prevent the tire holder from rotating in the lateral direction inside the tire; The length in the approximately vertical direction from the upper end to the attachment points of the two locking devices that are lowered approximately parallel to each other is such that the installation points of the two locking devices are within the upper semicircle of the tire rim hole. The tire is used for fendering by inserting it into the inner space of the tire and suspending it with a hanging device.
In the tire holder of a third aspect of the invention, in the invention according to claim 1 or 2 , when either the left or right side of the tire holder is inserted into the inner space of the tire, the tire holder of the tire holder By inserting the other tire which is not inserted into the inner space of the tire into the tire side surface near the rim hole of the tire with a predetermined overlap occurring on the tire side surface near the rim hole of the tire, A straight line length connecting the upper end portions of the two locations, a substantially vertical length connecting the upper end portions to the lower end portions, and a substantially vertical length connecting the upper end portions of the two locations so that the shape cannot be easily removed from the inner space of the tire. The length in the substantially vertical direction from the upper end to the attachment points of the two locking tools, which are lowered substantially parallel to each other, is determined.
A method for manufacturing a tire holder according to a fourth aspect of the invention is the invention according to claim 1, in which the inner radius of the tire and the radius of the rim hole of the tire are measured, and then the tire holder is inserted into the tire at a maximum maximum a straight line connecting the upper ends of the two locations, and a substantially vertical length connecting the upper end to the lower end, which is a length that can prevent the tire holder from rotating in the lateral direction inside the tire. The length in the direction and the length where the attachment points of the two locking devices are in the upper semicircle of the rim hole of the tire. The tire is used for fendering by determining the length in the substantially vertical direction up to the attachment point of the tool, and inserting it into the inner space of the tire and suspending it with a hanging tool.
A method for manufacturing a tire holder according to a fifth aspect of the invention is, in the invention according to claim 2, in which an inner radius of the tire, a radius of a rim hole of the tire, and a width of the tire are measured, and then the tire holder is attached to the tire. A straight line length connecting the upper ends of the two places, which is the maximum length that allows the tool to be inserted, and a length that can prevent the tire holder from rotating in the lateral direction inside the tire, from the upper end to the lower side. The length in the substantially vertical direction connecting the ends, and the length where the attachment points of the two locking devices are in the upper semicircle of the rim hole of the tire. The tire is used for fendering by determining the respective lengths in the substantially vertical direction to the attachment points of the two locking devices, inserting it into the inner space of the tire and suspending it with a hanging device. It will be done.
A method for manufacturing a tire holder according to a sixth aspect of the present invention is that in the invention according to claim 4 or 5 , when either the left or right side of the tire holder is inserted into the inner space of the tire, the tire holder The other tire that is not inserted into the inner space of the tire is inserted so as to be pushed into the tire side surface near the rim hole of the tire with a predetermined overlap occurring on the tire side surface near the rim hole of the tire. and a length connecting the upper end portions of the two locations, a length in a substantially vertical direction connecting the upper end portion to the lower end portion, and a length connecting the upper end portions of the two locations so that the tire has a shape that cannot be easily removed from the inner space of the tire; The lengths in the substantially vertical direction from the upper end portions at the two locations to the mounting locations of the two anchoring tools that are lowered substantially parallel to each other are determined .

By having the technical means as described above, the following effects are achieved.

By using the tire holder of the present invention, there is no need to drill holes in tires reinforced with metal fibers, which are currently widely used, in order to use them for fenders. It doesn't hurt your sexuality either.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a tire holder according to a first embodiment of the present invention and a tire held by the tire holder. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a tire into which a tire holder according to a first embodiment of the present invention is inserted. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram for explaining the relationship between the tire holder of the first embodiment of the present invention and the tire it holds. FIG. 2 is an explanatory diagram of how members 12-13 look in a rim hole for explaining the tire holder according to the first embodiment of the present invention. It is an explanatory view for explaining length c of a tire holder of a 1st embodiment concerning the present invention. FIG. 2 is an explanatory diagram of the overlap and insertion method when inserting the tire holder of the first embodiment of the present invention into a tire. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram of a tire holder according to a first embodiment of the present invention inserted into a tire. It is an explanatory view about another insertion method of the tire holder of a 1st embodiment concerning the present invention into a tire. FIG. 3 is an explanatory diagram of a tire holder manufactured using tires of different sizes in the first embodiment of the present invention. It is an explanatory view of a tire holder of a 2nd embodiment concerning the present invention. It is an external view of the tire holder of 3rd Embodiment based on this invention. It is an external view of the tire holder of 4th Embodiment based on this invention.

Embodiments of the tire holder according to the present invention will be described based on FIGS. 1 to 12. Note that the present invention is not limited to this embodiment.

(First embodiment)
A first embodiment will be described based on FIGS. 1 to 9. The tire holder 1 and the tire 7 to which the tire holder 1 is attached will be explained using the perspective view of FIG. Here, in order to explain the structure of the tire holder 1, the shape of the tire 7 will be explained first.

The tire 7 is formed of a cylindrical tread 71 and sidewalls 72 extending from the cylindrical tread 71 at a substantially right angle toward the center on both sides of the cylinder. Concerning the side surfaces 72 on both sides, rim holes 73 are provided on both sides of the side surfaces 72, which are concentrically formed in the side surfaces 72 at the locations where the wheels come into contact with the rim, which is the outer edge portion of the wheel when the wheels are attached. It is being Various grooves called tread patterns are formed on the tread surface 71, but since the tire 7 used in the present invention uses a waste tire for that purpose, the tread pattern is worn out.

A symbol indicating the tire size is displayed on the side surface 72 at the time of manufacturing the tire 7. The symbol indicating this size is the nominal standard size at the product stage, so it will be used for reference in the explanation in this application, but if there is an example of actually measuring a waste tire, it will be explained using this symbol.

Furthermore, since it is necessary to explain the relationship with the tire holder 1 in relation to each dimension of the tire 7, the distance between the opposing treads 71 of the tire 7 is called the tire outer diameter (diameter), and for the purpose of explanation, The radius of the outside of the tire will be described as a symbol "Rо", and the tire outer diameter will be "2Rо". The tire holder 1 has a shape that is inserted inside the tire 7 to hold the tire 7, so the radius of the inside of the tire will be expressed as a symbol "Ri" in the description.

Note that "Rо-Ri" is the tire wall thickness, and will be expressed as a symbol "t" for explanation. Note that the tire wall thickness "t" is said to be 20 to 15 mm when it is new, so the description will be made assuming that the tire wall thickness "t" when it is a waste tire is 10 mm. Furthermore, the tire width will be expressed as a symbol "w" and will be explained.

Next, the radius of the rim hole 73 on both side surfaces 71 of the tire 7 will be described using the symbol "Rr". Note that although the diameter of the wheel attached to the rim hole 73 is generally expressed in inches (in), the diameter will be explained in terms of millimeters (mm).

The tire holder 1 is fabricated by cutting and bending a straight metal bar, by welding, by threading the bar itself, by screwing using bolts, and other mounting methods. The shape of the tire holder 1 will be described with reference numerals attached to the end, bent portion, and branched portion.
A member 11-12 that connects the end portion 11 and the bent portion 12, a member 12-13 that connects the bent portion 12 and the branch portion 13, and a member 12-13 that connects the end portion 14 and the end portion 15 and the branch portion 13 is attached in the middle. It is formed of fastening members 16 and 17 attached at a predetermined interval between members 14-15 and 12-13.

In this embodiment, the members 11-12, 12-13, and 14-15 are stainless steel round bars with a diameter of 20 mm, and the bent portion 12 is formed by bending, and the branched portion 13 is formed by welding. It is formed. The fastening members 16 and 17 are U-shaped stainless steel round bars with a diameter of 5 mm and are attached to the members 12-13 by welding. The fastening members 16 and 17 are for restricting movement of a hanging tool 8, which will be described later. The above-mentioned materials are intended to have corrosion resistance against seawater and withstand the weight of the tires 7 and the impact of a ship when berthed, and may be made of other metals or synthetic resins with reinforcement It may be. Also, a pipe may be used instead of a rod as long as it provides strength.
Furthermore, stainless steel angles, channels, etc., having a height and width of 20 to 50 mm may be used.

FIG. 2 is a diagram showing the tire holder 1 in a state where the tire 7 described above can be held. It is attached with a shackle. In addition, in this embodiment, a shackle is used for the locking tool 9, but it is also possible to weld a ring or the like through the member 12-13 or by processing a wire of a predetermined thickness. You can also install it. In addition, in this embodiment, stainless steel is used for the hanging tool 8 and the locking tool 9 in consideration of corrosion resistance against seawater, but as mentioned above, other metals may be used, and corrosion-resistant This can also be done by using ropes or wires that have properties.

In addition, in the conventional hanging method of the tire 7 such as Patent Document 1, in order to hang the tire 7 by drilling a hole in the tread 71 of the tire 7, a hanging device 8 such as a chain is attached to a mooring curved pole provided on the top surface of a quay. If the tire 7 was installed using the above method, it was not possible to install the tire 7 above the top of the quay. However, when suspending the tire 7 using the tire holder 1 of the present invention, the hanging tool 8 is attached to the members 12-13, and thereby the upper part of the tire 7 is suspended above the top surface of a quay or the like. It becomes possible to install it in This is because if it is possible to extend the upper part of the tire 7 over the top surface of a quay or the like, the fendering effect can be exerted even when the upper side of the ship protrudes outward.

Furthermore, in the conventional method for suspending tires 7 such as Patent Document 1, in order to suspend a plurality of tires, it is necessary to make holes in the treads 71 of the tires 7 at the locations where the tires 7 are connected to each other. It was necessary to perform a plurality of drilling operations for the tire 7, which is necessary and difficult to perform as described above.
However, when suspending the tire 7 by inserting the tire holder 1 into the tire 7, hang two chains of the sling 8 and hang the tire holder 1 and the tire holder 1 at appropriate locations with the locking devices 9. If the tool 8 is locked, hanging of two or more rows becomes possible. Furthermore, by changing the arrangement of the chain of the hanging tool 8 in various ways, the same hanging method as shown in FIGS. 1 and 8 of Patent Document 1 can be achieved without drilling holes in the tire 7. be able to.

Here, in order to be able to perform the function of the tire holder 1 by putting the tire holder 1 into the tire 7 in the state shown in FIG. It is necessary to consider the relationship between the sizes of each part when manufacturing. Therefore, it is first necessary to measure and know the tire inner radius Ri and the rim hole radius Rr among the sizes of each part of the tire 7 to which the tire holder 1 is attached.

The relationship between these sizes will be explained using FIG. 3. In FIG. 3(a), which is a front view of the tire 7, and FIG. 3(b), which is a sectional view taken along line A-A in FIG. ing. Note that since it may be difficult to actually measure the tire inner radius Ri, the value obtained by subtracting 10 mm, which is the tire wall thickness t, from the tire outer radius Ro may be used as described above. Further, although the tire width w can be explained in relation to the rim hole radius Rr, which will be described later, the tire width w may also be measured.

As shown in FIG. 3(c), in order to facilitate the explanation of the length of each part of the tire holder 1, members 11-12 and 14-15 are attached to the length of member 12-13 on both sides. The maximum external length of the attached tire holder 1, in other words, the maximum horizontal length of the tire holder 1 is designated by symbol "a", the length of member 14-15 is designated by symbol "b", and the length of member 12-13 is designated by symbol "b". The length from the center line to the end 11 of member 11-12 and end 14 of member 14-15 is designated as "c", and the length of the symmetrical installation interval between fastening member 16 and fastening member 17 will be explained using the symbol "d".

In determining the lengths a to d of each part of the tire holder 1, the relationship between them will be explained below using the tire inner radius Ri and the rim hole radius Rr of the tire 7 to which the tire holder 1 is attached. The order of explanation is to determine the length b of the tire holder 1, then determine the length a from the relationship with the length b, then determine the length c from the relationship with the length a, and finally, The length d is determined from the relationship with the lengths a to c determined up to.

First, in order to insert the tire holder 1 into the inside of the tire 7, the tire holder 1 must be inserted through the rim hole 73. As shown in the shape of the tire 7 described above, FIG. 2, and FIG. Thus, the tire holder 1 is inserted into a space surrounded on both sides by the substantially U-shaped cross section.
Therefore, the length b of the members 14-15 of the tire holder 1 needs to be smaller than 2Rr, which is the diameter of the rim hole 73. In other words, the relationship is b<2Rr.

In addition, the length b of the members 14-15 of the tire holder 1 is longer than the tire width w in order to prevent the tire holder 1 from rotating around the members 12-13 inside the tire 7. It needs to be bigger.
Therefore, the relationship "w<b<2Rr" is required.

Regarding the tire width w, for commonly used tires excluding special tires from bus and truck catalogs, the relationship between the tire width w and the rim hole radius Rr is as follows:
The tire width w is in the range of 0.82Rr to 1.11Rr.
From this, 0.82Rr~1.11Rr<b<2Rr,
At least, it is good if b>1.11Rr.
Then, b should have the effect of not rotating inside the tire 7 within this range, so
Considering that the value is as small as possible within this range and can reliably prevent rotation, the relationship with the rim hole radius Rr is set as follows. Therefore,
"b=1.25Rr"... (Relational Expression 1) is used.
Note that this can be carried out simply by setting the value of b to be slightly larger than the actually measured tire width w.

If the tire holder 1 is made up of only members 12-13 and the maximum length in the horizontal direction of the tire holder 1 is "a", then the so-called tire holder 1 is assumed to be rod-shaped. If only the member 12-13 has length a, the maximum length is equal to Ri+Rr of the tire 7. This is because when the member 12-13 is inserted into the rim hole 73 of the tire 7, the tire 7 has an internal depth space equal to the tire width w minus twice the tire wall thickness t, and the member 12-13 is inserted into the rim hole 73 of the tire 7. 13 can be inserted diagonally. Strictly speaking, the member 12-13 is not a line but a bar with a diameter of 20 mm, and the point where the tire width w and the tread surface 71 and side surface 72 inside the tire connect is not a right angle but a rounded shape. etc. must also be taken into consideration, so if the tire holder 1 is rod-shaped, it is considered as "a=Ri+Rr", although this is a simple example.

However, regarding the maximum horizontal length a of the tire holder 1, as described above, the member 12-13 has a length b, the branch part 13 has a member 14-15 of length b, and the bent part 12 has a member 11. -12 is attached. Therefore, when the tire holder 1 is inserted into the tire 7 from the member 14-15 side first, the member 14-15 hits the inner surface of the tire 7, and the maximum horizontal length of the tire holder 1 When a is set to "a=Ri+Rr", the member 14-15 of length b is attached, so it is too long near the bent portion 12 and cannot enter the inside of the tire 7 through the rim hole 73.

Here, a description will be given of how much the maximum length a in the lateral direction of the tire holder 1 should be shortened from the length of Ri+Rr. Therefore, we will explain the value to be shortened by adding the symbol "s" and explain how to find the value of s, assuming that the relationship is s = Ri + Rr - a. It can be found using the Pythagorean theorem).
s=(Ri+Rr)-√(Ri×Ri-(b/2×b/2))
Calculating this, the ratio of Ri to Rr is in the range of 1.5Rr to 1.85Rr in most cases, excluding special tires from bus and truck catalogs.
Considering the above relationship "b=1.25Rr" (Relational Expression 1), the range of the value of s is "0.037Ri to 0.083Ri".
The range of Ri in the catalog for buses and trucks is "300 to 550 mm", so
The range of the value of s is "11 to 46 mm".

Therefore, in the formula for calculating s for the maximum horizontal length a of the tire holder 1,
Since it is greatly affected by the length of the tire inner radius Ri, we determined a coefficient of 0.93 from the value range of "0.963 to 0.917" which is "1-s", which can be considered from the value of s. do. Therefore,
"a=Ri×0.93+Rr" (Relational Expression 2) is used.
Here, regarding the coefficient 0.93, it is necessary to provide a suitable overlap when inserting it into the tire 7 to prevent the tire holder 1 from separating from the tire 7, so the coefficient 0.963 to 0. 917'' value range.
In addition, simply speaking, the range of Ri in the catalog for buses and trucks is "300 to 550 mm", so it is an intermediate value range,
It may also be determined as "a=Ri+Rr-(25 to 35 mm)".

The tire holder 1 consists of a member 12-13 of length a determined by relational formula 2, a member 14-15 of length b determined by relational formula 1, and a member 11-12 of half the length b. It is assumed that members 12-13 are attached to the center of members 14-15.
In this state, if the tire holder 1 is placed inside the tire 7 and the hanging tool 8 is attached to the member 12-13 to suspend the tire 7, the position of the member 12-13 on the tire 7 can be determined. This needs to be considered.

This is because if the center line of the member 12-13 is located at a position where the center line of the member 12-13 overlaps the plane where the tire 7 is cut at the diameter of the side surface 72 of the tire 7 and the diameter of the rim hole 73, the member 12-13 When the tire 7 is suspended by attaching the hanging device 8 to 12-13, theoretically the member 12-13 will be at the center of gravity of the tire 7, and the tire 7 will not hang vertically but horizontally. The tire 7 becomes unstable, such as tilting in the opposite direction.

Furthermore, even if the member 12-13 is located above the plane where the tire 7 is cut at the diameter of the side surface 72 of the tire 7 and the rim hole 73, the member 12-13 is located near the outer periphery of the rim hole 73 of the tire 7. If the rim hole 73 is circular, the parts of the fastening members 16 and 17 that are attached to the members 12-13 on the side surface 72 of the tire 7 will be hidden by the side surface 72 of the tire 7, and the rim hole 73 is circular, so it will not be possible to The more members 12-13 there are, the smaller the opening of rim hole 73 becomes, and the length d of the symmetrical attachment interval between fastening members 16 and 17 needs to be reduced. However, with regard to the symmetrical mounting interval d between the fastening members 16 and 17, it is better to have as wide a space as possible, considering that the hanging tool 8 will be attached and hung. This is because the tire 7 can be hung stably.

Therefore, this relationship will be explained using FIG. 4(a). At the position of the vertical axis y in the circular rim hole 73, the diameter of the rim hole 73 is taken as a reference, this line is set as 0 (zero), and the case where the rim hole radius Rr is set from this reference line is set as 1 (one). Letting the ratio to the rim hole radius Rr be x,
The ratio x is determined by the Pythagorean theorem and becomes "x=√(Rr×Rr−y×y)/Rr."
If this is calculated, the result will be as shown in FIG. 4(b). Then, if y is in the range of 0.4 to 0.7, then x will be in the range of 0.917 to 0.714, so even if y = 0.7,
Even if x is 0.71 or more and y is 0.7, 71% of the member 12-13 will be visible through the rim hole 73.

As mentioned above, the following relational expression is obtained.
"b=1.25Rr"...(Relational expression 1)
"a=Ri×0.93+Rr"...(Relational expression 2)
Therefore, assuming that the branch part 13 is located at a position where the member 12-13 is half the length b of the member 14-15, the position of the member 12-13 on the vertical axis y can be determined by the Pythagorean theorem, so The formula is as follows.
“y=(√(Ri×Ri−a/2×a/2)−b/2)/Rr”

Substituting the relationship between Relational Expression 1 and Relational Expression 2 into the above equation, "y=(√(Ri×Ri-(Ri×0.93+Rr)/2×(Ri×0.93+Rr)/2)-1. 25Rr/2)/Rr".
As mentioned above, the ratio of Ri to Rr is in the range of 1.5Rr to 1.85Rr in most cases, excluding special tires from bus and truck catalogs.
When Ri=1.5Rr, y=0.278%,
When Ri=1.85Rr, y=0.629%.
This is shown in FIG. 5, with the case of Ri=1.5Rr shown in FIG. 5(a), and the case of Ri=1.85Rr shown in FIG. 5(b). Further, as for the ratio of Ri to Rr, the relationship obtained from 1.4 to 2 is shown in FIG. 5(c).

Regarding the tire holder 1, in order to lower the horizontal position of the members 12-13, members 11-12 are attached upward to the bending part 12, and members 14-15 are attached to the branching part 13. . In order to keep the members 12-13 horizontal, the length from the center line of the members 12-13 to the end 11 is equal to the length to the end 14, which is the length "c". Regarding the length c, the ends 11 and 14 touch the upper part of the back side of the tread 71 of the tire 7 (inner surface of the tire 7), lowering the position of the members 12-13, and lowering the position of the fastening member 16. , 17 are made visible through the rim hole 73.

Regarding the value of c, the length from the center line of the member 12-13 to the end 11 and the length c to the end 14 is determined at the rim hole 73 of the member 12-13. The horizontal position of the fastening members 16 and 17 is above the horizontal diameter line of the rim hole 73 and is attached to the member 12-13 in the upper half of the rim hole 73. It needs to be in a position that allows for wide spacing.
From the above, the value of y, which is the position of the member 12-13, as explained in FIG. For example, the value of c is determined within a range in which the value of x is 71% or more and the tire 7 can hang stably.
Therefore, the value of c is set in the range of "0.4≦y≦~0.7."

The content explained above with reference to FIG. 5 was that c=b/2. Therefore, if c=b/2, c=0.625Rr, but when Ri is in the range of 1.5Rr to 1.85Rr, y is in the range of 0.278 to 0.629, and the width of change is If the value of c was simply reduced by 0.125 to make c=0.5Rr,
If the width of change remains 0.351, y will change within the range of 0.403 to 0.754.
Therefore, it is better to determine the value of c by subtracting the rim hole radius Rr from the tire inner radius Ri of the tire 7, instead of determining the value of c only in relation to Rr. This is because, as shown in FIGS. 5(a) and 5(b), the value of c is largely related to the portion where the holder 1 is hidden inside the side surface 72 of the tire 7. Therefore, it is better to determine c in relation to (Ri-Rr), which is the value obtained by subtracting the rim hole radius Rr from the tire inner radius Ri of the tire 7.
Therefore, the value of c is determined using the following relational expression.
The following relational expression is used: "c=(Ri-Rr)/1.25" (Relational Expression 3).

Using this relational expression 3, when Ri is in the range of 1.5Rr to 1.85Rr, the width of change in y in the range of 0.43 to 0.5 is as narrow as 0.07, and the member 12- 13 can be determined, and the members 12-13 can be arranged horizontally in the rim hole 73 with a sufficient distance between the fastening members 16 and 17.

Regarding the ratio of tire inner radius Ri to rim hole radius Rr, in most cases excluding special tires from bus and truck catalogs, Ri is in the range of 1.5Rr to 1.85Rr. , y values are in the range of 0.903 to 1.254, as shown in FIG. 5(c).
Therefore, the value of y is close to 1, and y can be considered to be equal to the rim hole radius Rr.
In this case, the member 11-12 can be placed in the middle of the upper half of the rim hole 73, so for simplicity, "c=1/2Rr" may be used, but as shown in FIG. 5(c) As explained above, the further up and down the distance from the value of Ri=1.6Rr, the further away the y position of the member 11-12 will be from 0.5.

If the value of c is determined and y is in the range of 0.43 to 0.5, the length of the range visible from the rim hole 73 of member 12-13 is twice the rim hole radius Rr. More than 86% of the light will be visible. Therefore, although it depends on the sizes of the fastening members 16 and 17, the distance d between the fastening members 16 and 17 should be set to 50 to 70% of twice the rim hole radius Rr, preferably d=2Rr×0. .55'' (Relational Expression 4) is used.
It is said that

From the above, an example in which the tire holder 1a is manufactured using an actual waste tire will be described using FIG. 6.
Assume that the dimensions of each part of the tire 7a are tire inner radius Ri=350 mm and rim hole radius Rr=215 mm. Although not directly related to the relational expression, it is assumed for reference that the tire width w is 215 mm.
In that case, using relational expressions 1 to 4,
a=Ri×0.93+Rr=350×0.93+215=540.5≒540mm
b=1.25Rr=1.25×215=268.75≒270mm
c=(Ri-Rr)/1.25=(350-215)÷1.25=108≒110mm
d=2Rr×0.6=2×215×0.55=236.5≒240mm
Then, the tire holder 1a can be manufactured.

The case where the tire holder 1a produced in this state is attached to the tire 7a having the above-mentioned dimensions will be described with reference to FIGS. 6(a), (b), and (c).
In FIG. 6(a), when the tire holder 1a is inserted into the tire 7a from the member 14-15 side, the end portion 11 of the member 11-12 overlaps the side surface 72 of the tire 7a, and if left as it is, it will not be inside the tire 7a. Regarding this state in which the tire cannot be inserted, FIG. 6(b), which is a sectional view taken along line BB in FIG. 6(a), also illustrates the relationship between the tire holder 1a and the tire 7a.

The length Rf from the center of the tire 7a at the end 11 of this tire holder 1a is determined.
First, the length "Ri-s" into which the tire 7a of the tire holder 1 can be inserted is determined as follows:
Ri-s=√(Ri×Ri-b/2×b/2)=322.92mm
Rf=√((a-Ri-s)×(a-Ri-s)+b/2×b/2)=255.64mm
Therefore, the overlap is the length obtained by subtracting the rim hole radius Rr from the length between the end 11 of the tire holder 1a overlapping the side surface 72 of the tire 7a and the center of the rim hole 73.
"Overlap"=Rf-Rr=255.64-215=40.64mm.

Regarding the "overlap", if we consider it strictly, the tire holder 1a will enter the tire 7a diagonally due to the tire width w, so the "overlap" should be shorter, but the tire 7a Since the inner surface of the tread surface 71, particularly the inner surface of the tread surface 71 that the members 14-15 come into contact with, is formed of a rounded inner wall, it is assumed that the shortening of the "overlap" can be ignored.

The outline of pushing into the side surface 72 of the tire 7a due to this "overlapping" will be explained with reference to FIGS. 6(b) and 6(c). Note that, like FIG. 6(b), FIG. 6(c) is also a sectional view taken along line BB in FIG. 6(a).

With the tire holder 1a riding on the side surface 72 of the tire 7a in FIG. 6(b), when the end portion 11 of the member 11-12 of the tire holder 1a is further pushed in, the side surface 72 of the tire 7a is deformed inward. Then, the member 11-12 is gradually pushed into the tire 7a from the bent portion 12 side toward the end portion 11. In addition, when actually pushing the tire holder 1a into the tire 7a, you will have to hold the members 12-13 of the tire holder 1a and push it in, so make sure that the arrow in the direction of pushing and the force are applied to the place where it is easy to push. The symbol "P" is added to indicate the meaning.

As shown in FIG. 6(a), the tire side surface 72 has a rim hole 73, so that the tire side surface 72 has a wider width relative to the side surface 12 of the tire 7a as it goes from the bent portion 12 toward the end portion 11. This means that -12 is overlapping. When the member 12-13 of the tire holder 1a is further pushed from the state shown in FIG. 6(b), which is a cross-sectional view of FIG. Since they only overlap narrowly, they enter the inside of the tire 7a from the bent portion 12.

As shown in FIG. 6(c), when the member 12-13 of the tire holder 1a is further pushed, the tire holder 1a is tilted from the bent part 12 of the tire holder 1a, and the member 11-13 enters the inside of the tire 7a. Therefore, the end portion 15 of the tire holder 1a is also inclined toward the inside of the tire 7a. This state is illustrated in FIG. 6(c). When the state shown in FIG. 6(c) is reached, about half of the member 11-12 enters inside the tire 7a from the bent portion 12 side, and when the member 12-13 is pushed in, the tire holder 1a is moved into the tire 7a. Can be inserted inside.

In the tubeless tires that are currently widely used, including the tire 7a, a bundle of ring-shaped piano wire called a bead wire is placed inside the rubber near the rim hole 73 of the tire 7a in order to make the tire adhere tightly to the wheel. Contains reinforcing material to increase elasticity. For this reason, the vicinity of the rim hole 73 of the tire 7a has a structure that is difficult to deform, but the tire holder 1a has a structure in which the member 11-12, which has not yet entered the tire 7a, is -12 can be inserted into the tire 7a while gradually changing the shape of the rim hole 73. Furthermore, since the tire holder 1a inside the tire 7a cannot be easily taken out from the tire 7a, even when the tire 7a is suspended by the hanging device 8 and used for fendering for a long period of time, , the tire 7a will not easily fall off (separate) from the tire holder 1a.

After the tire holder 1 enters the inside of the tire 7a, the suspension 8 is attached to the fastening members 16 and 17 on the tire holder 1 and pulled upward, as shown in FIGS. 7(a) and 7(b). Illustrated. FIG. 7(b) is a cross-sectional view taken along the line CC in FIG. 7(a), and although not shown in FIG. 7(a) for clarity, there are two points in FIG. 7(b). A hanging tool 8 and a locking tool 9 are shown with chain lines. Further, the two-dot chain line shown on the inner surface of the tire 7a indicates the location where the end portion 14 of the tire holder 1a comes into contact. As shown in FIG. 7(a), the position of the member 12-13 of the tire holder 1a is visible in the middle of the upper half of the rim hole 73.

Furthermore, as shown in FIG. 7(b), since the tire holder 1a is lifted by the lifting device 8, it is biased towards the lifted side inside the tire 7a. Also, it will not fall off the tire 7a. Furthermore, since the tire 7a is only held around the tire holder 1a without falling off, if the tire 7a is partially worn out or deformed, the tire 7a is held around the tire holder 1a. It can also be rotated to change its position to a location where it can exert its fender effect.

Regarding the tire holder 1a, as described above, the method of inserting the members 14-15 into the tire 7a first was explained, but the tire holder 1a can also be inserted into the tire 7a from the members 11-12 first. The entire holder 1a can be placed into the tire 7a. This method will be explained using FIGS. 8(a), 8(b), and 8(c).
If the tire holder 1a is inserted into the tire 7a from the member 11-12 first while holding the member 12-13 and pushing it toward the right in FIG. Because it is shorter compared to 15. As shown in FIG. 8(a), the tire holder 1a is inserted toward the back, and the member 14-15 is also inside the rim hole 73, and the end portion 14 of the member 14-15 is is in the rim hole 73.

In this state, when the member 12-13 of the tire holder 1a is pushed upward as shown in FIG. 8(b) and the end portion 14 is also inserted inside the tire 7a, the state shown in FIG. 8(b) is obtained. In FIG. 8(b), as the tire holder 1a is pushed upward, the tire holder 1a is pushed leftward so that the end portion 11 follows the inner surface of the tread 71 of the tire 7a. , the bent portion 12 is separated from the inner surface of the tread surface 71 of the tire 7a. Further, the branch portion 13 comes into contact with the rim hole 73.

Furthermore, if the member 12-13 of the tire holder 1a is pushed upward from FIG. The end portion 14 is gradually inserted into the tire 7a. These insertion methods are basically the same, with the only difference between the insertion methods shown in FIGS. 6(b) to 6(c) being that the overlap is on the top and the overlap is on the bottom. However, the method of inserting from member 11-12 requires one more insertion step than the method of inserting from member 14-15, and the method explained in FIG. 6 is easier to understand.

Next, an example will be described in which the tire holder 1b is manufactured using an actual waste tire 7b.
Assume that the dimensions of each part of the tire 7b are tire inner radius Ri=450 mm and rim hole radius Rr=280 mm. Although not directly related to the relational expression, it is assumed for reference that the tire width w is 275 mm.
In that case, using relational expressions 1 to 4,
a=Ri×0.93+Rr=450×0.93+280=698.5≒700mm
b=1.25Rr=1.25×280=350mm
c=(Ri-Rr)/1.25=(450-280)÷1.25=136≒140mm
d=2Rr×0.55=2×280×0.55=308≒300mm
Then, the tire holder 1b can be manufactured.

The case where the tire holder 1b produced in this state is attached to the tire 7b having the above-mentioned dimensions will be described with reference to FIG.
When the tire holder 1b is inserted into the tire 7b from the member 14-15 side, the end 11 of the member 11-12 overlaps the side surface 72 of the tire 7b and cannot be inserted into the tire 7b as it is.
The length Rf from the center of the tire 7b at the end 11 of this tire holder 1 is determined as follows:
The dimension "Ri-s" in which the tire 7a of the tire holder 1 can be inserted is Ri-s=√(Ri×Ri-b/2×b/2)=414.58 mm
Rf=√((a-q)×(a-q)+b/2×b/2)=334.80mm
Therefore, the overlap = Rf - Rr = 334.80 - 280 = 54.80 mm.

Due to this overlap, the outline of pushing into the side surface 72 of the tire 7b is the same as the relationship between the tire holder 1a and the tire 7a, so the explanation will be omitted.
Further, a state in which the tire holder 1b is suspended after the tire holder 1b is inserted into the tire 7b is illustrated by a chain double-dashed line. The position of the member 12-13 of the tire holder 1b indicated by the two-dot chain line can also be provided approximately in the center of the upper semicircle of the rim hole 73 of the tire 7b.

Regarding the content explained above, we have explained how to obtain the dimensions of each part of the tire holder 1 from the tire inner radius Ri and the rim hole radius Rr of the tire 7 to which the tire holder 1 is attached. The tire holder 1 can also be created by a method in which the length of each part, including the shape and the wooden mold, is determined in consideration of the function of the tire holder 1 described above.

Note that it is also possible to implement the tire holder 1 by having a structure in which it is assembled inside the tire 7 or a joint structure, for example, a structure in which the bending portion 12 can be pivoted and bent. This structure has the effect of simplifying the insertion of the tire holder 1 into the tire 7. However, the tire holder 1 inserted into the tire 7 is required to be durable enough to be used for a long period of time, and although there is a possibility that the tire 7 will be worn out, when replacing the tire 7 in that case, In this case, the above-described assembly structure etc. may be implemented taking into account that it is only necessary to cut a part of the tire 7.

(Second embodiment)
The tire holder 2 will be explained using FIGS. 10(a) and 10(b). In the tire holder 2, the bent part 12 of the member 11-12 of the tire holder 1a is not bent, but is made into a branch part 12a, and is stretched in the same way as the member 14-15, so that it has the same length b as the member 14-15. It is assumed that the end portion 18 is provided, formed into a substantially "H" shape, and inserted into the tire 7a.

However, in the case where the tire holder 1a is simply provided with a member 11-18 having the same length as the member 14-15, if the shape shown by the two-dot chain line in FIG. The end portion 18 overlaps with the rim hole 73 at two locations. Regarding this overlap, "overlap" = Rf - Rr = 40.64 mm occurs at two locations, the end portion 11 and the end portion 18, as in the case of the tire holder 1a.

In this case, as explained in connection with the tire holder 1a, it is no longer possible to insert the bent portion 12 into the rim hole 73 first, and a member 11-18 having the same length as the member 14-15 of the tire holder 1a is provided. If so, it will not be possible to insert it into the tire 7a. This is because, as described above, a reinforcing material called a bead wire, which is a bundle of ring-shaped piano wires, is contained inside the rubber near the rim hole 73 of the tire 7a.

In addition, in FIG. 10(a), if the member 11-12 is to be stretched up to the temporary end 19, the overlap with the rim hole 73 is slight. If it is extended to the end 19, it can be inserted in the same way as the tire holder 1a.

Therefore, the tire holder 2 will be explained using FIG. 10(b). The tire holder 2 includes an end 21, a branch 22, an end 28, a branch 23, an end 24, and an end 25, and members 21-28, which are formed by connecting the respective parts. It is composed of 22-23, members 24-25, and a fastening member 26 and a fastening member 27. One of the members 22-23 is attached to the branch 22 of the members 21-28, and the other is attached to the branch 23 of the members 24-25. Further, the fastening member 26 and the fastening member 27 are attached to the members 22-23 symmetrically with an interval d between them. Note that the material of the tire holder 2, the cross-sectional shape of the material, and the method of attaching each part are the same as those of the tire holder 1 of the first embodiment, so explanations thereof will be omitted.

Next, for the above-mentioned reason, the portion where the length of the tire holder 2 is changed from the tire holder 1a will be explained. Regarding the changed length, among the lengths of each part of the tire holder 2, the maximum horizontal length of the tire holder 2 is changed from "a" to "a1", which is shorter than "a", and the member 22 is changed to "a1", which is shorter than "a". The length "c" from the center line of -23 to the end 21 of the member 21-28 and the end 24 of the member 24-25 is shorter than the length "c" because a1 is shorter. It is set to a longer "c1".

The details of the method for determining "a1" and "c1" are the same as those for the tire holder 1 of the first embodiment, so the explanation will be omitted. The lateral end portion 21 and the end portion 24 are also inserted into the tire 7 from the member 14-15 side and pushed into the side surface 72 of the tire 7 with the member 11-19. Since it is necessary to push in two places, in order to make it easier to push in, the coefficient of "a = Ri × 0.93 + Rr" of "Relational expression 2" when calculating "a" of tire holder 1 is "0.93". ” is set to “0.87 to 0.81”.
For "c1", 1.25 of the coefficient of "c=(Ri-Rr)/1.25" in "Relational Expression 3" when determining "c" of the tire holder 1 is "1.1~1. .0'', the position of members 22-23 is lowered accordingly.
In addition, in the tire holder 2 of the second embodiment, the coefficient of a1 is 0.85,
From a=540mm, change a1=510mm,
By setting c1=130 mm from c=110 mm, the function of the first embodiment can be obtained.

By forming the tire holder 2 into a substantially "H" shape, the tire holder 2 becomes bilaterally symmetrical, and manufacturing is facilitated because the same parts can be machined.
Other relationships are the same as those in the first embodiment, so their explanation will be omitted.

(Third embodiment)
A tire holder 3 according to a third embodiment will be described based on FIG. 11. FIG. 11 shows a tire holder 1 manufactured to be attached to a tire 7 in the same way as the tire holder 1 of the first embodiment, but with a different manufacturing method. FIG. 11(a) is a front view of the tire holder 3, and FIG. 11(b) is a bottom view thereof. FIG. 11(c) is a diagram of a member 35a when the member 35 of the tire holder 3 is replaced with a member 35a.

As for the tire holder 3, a component 30 made of a stainless steel round bar with a diameter of 20 mm formed into a substantially "U" shape and a component 35 made of a stainless steel plate with a thickness of 3 to 5 mm processed into the shape described later are welded together. It is something. Regarding the component 30, an end portion 31, a bent portion 32, a bent portion 33, and an end portion 34 are formed, and the bent portion 32 and the bent portion 33 are formed by bending, but may also be formed by welding.

The length connecting the end portions 31 and 34 of the component 30 is formed to be the length “a” of the tire holder 1, and the length connecting the end portions 31 and 34 of the component 30 is set to be the length “a” of the tire holder 1. The respective lengths up to the end portions 34 are formed to be the length “c” of the tire holder 1.

The component 35 is a substantially "L" shaped plate, and when the component 35 is arranged in a substantially straight line from the end 34 of the component 30 to the end 38 of the component 35. The length is processed to be equal to the length "b" of the tire holder 1.
Furthermore, recesses 36 and 37 are provided at positions corresponding to the fastening members 16 and 17 of the tire holder 1 in a substantially "U" shape and having the same size as the space surrounded by the fastening members 16 and 17. . The recesses 36 and 37 are formed at symmetrical positions in the tire holder 3 at intervals of "d" in the tire holder 1.

Therefore, the tire holder 3 is formed to have the same length relationship as the tire holder 1 of the first embodiment, and can be attached to the tire 7 in the same manner as the tire holder 1.
Descriptions of the method of attachment to the tire 7 and other relationships will be omitted since they are the same as those of the first embodiment.
In addition, since the number of parts of the tire holder 3 can be reduced, the number of manufacturing steps can be reduced.

The component 35 of the tire holder 3 is formed by processing a stainless steel plate material, and is made by bending a stainless steel round bar with a diameter of 5 to 8 mm or a stainless steel square bar with an opposite side of 5 to 8 mm, such as the component 35a. By processing, a recess 36a, a recess 37a, and an end 38a are formed in the bar material so that the shape of the part 35 in contact with the component 30 of the tire holder 3 and the positional relationship between the end 38 of the component 35 are the same. was formed. Even in the case of the component 35a, since the same positional relationship as that of the tire holder 1 is formed, the tire 7 can be attached in the same manner. Descriptions of the method of attachment to the tire 7 and other relationships will be omitted since they are the same as those of the first embodiment.

(Fourth embodiment)
A tire holder 4 according to a fourth embodiment will be described based on FIG. 12. The tire holder shown in FIG. 12 is manufactured to be attached to the tire 7 in the same way as the tire holder 1 of the first embodiment, but the manufacturing method is changed. FIG. 12(a) is a front view of the tire holder 4, and FIG. 12(b) is a bottom view thereof.

The tire holder 4 is formed by pressing a stainless steel plate with a thickness of 3 to 6 mm. Regarding the tire holder 4, the entire circumference of the plate material and the burring processing (hole processing with raised holes) 46 and 47 for accommodating the fastening members 16 and 17 of the tire holder 1 are provided with 7 to 15 mm raised holes. There is a rise. Note that in order to reduce the plate thickness, ribs may be formed at appropriate locations.

The length connecting the end portions 41 and 44 of the tire holder 4 is formed to be the length “a” of the tire holder 1. Further, the length connecting the end portions 44 and 45 is set to be the length “b” of the tire holder 1. The burring processes 46 and 47 are burring processes with a diameter of 35 to 60 mm, and the vertical gap between one set of burring processes 46 and the other set of burring processes 47 is 20 mm. It is formed like this.

Note that the line connecting the ends 41 and 42 and the line connecting the ends 44 and 45 are formed to be approximately perpendicular to the line connecting the ends 41 and 44. There is. The end portion 42 corresponds to the length "c" described later. The line connecting the end portion 42 and the end portion 45 is formed so close to the burring processes 46 and 47 that there is no problem in terms of strength.
Furthermore, since the ends 41, 42, 44, and 45 are rounded (rounded), the ends refer to the center portions of the rounded portions. Therefore, the maximum length of the outer shape of the tire holder 4 is slightly larger than that of the tire holder 1 of the first embodiment.

Then, the respective lengths to the end portion 41 and the end portion 44 are determined based on a line passing horizontally between one set of burring processing 46 and the other set of burring processing 47 corresponding to the upper and lower sides. It is formed to have a length of "c" of the tool 1. Furthermore, one set of burring processing 46 and the other set of burring processing 47 corresponding to the upper and lower sides are arranged at symmetrical positions in the tire holder 4 and at intervals of "d" of the tire holder 1. It is formed.

Therefore, the tire holder 4 is formed in the same length relationship as the tire holder 1 of the first embodiment, and can be attached to the tire 7 in the same manner as the tire holder 1.
Descriptions of the method of attachment to the tire 7 and other relationships will be omitted since they are the same as those of the first embodiment.
The tire holder 4 can be mass-produced because the number of parts can be reduced.

Although the present invention has been described above based on the first to fourth embodiments, the present invention is not limited to the configurations of these embodiments in any way. This can be implemented as long as it can be inserted into the tire described above and has a shape that allows it to function as a tire holder.

Furthermore, the present invention is not limited to these, but includes the inventions described in the claims and their equivalents.
The inventions described in the claims of the present application are additionally described below.
(Additional note)
[1] Addendum 1 is that the length of each part is determined from the relationship between the inner radius of the tire and the radius of the rim hole of the tire, and the tire is inserted into the inner space of the tire and suspended with a hanging device. This is a tire holder used for fenders.
[2] Addendum 2 is based on the relationship between the inner radius of the tire, the radius of the rim hole of the tire, and the width of the tire, so that the tire can be prevented by being inserted into the inner space of the tire and suspended by a hanging device. This is a tire holder used for sailing.
[3] Addendum 3 is that when inserting into the inner space of the tire, the tire is inserted so as to push in the side surface of the tire near the rim hole, and each part is shaped so that it cannot be easily removed from the inner space of the tire. The tire holder according to Supplementary Note 1 or 2 has a predetermined length.
[4] Addendum 4 is that the inner radius of the tire and the radius of the rim hole of the tire are measured, the length of each part is determined, and the tire is inserted into the inner space of the tire and suspended with a hanging tool. This is a method of manufacturing a tire holder used for fenders.
[5] Addendum 5 measures the inner radius of the tire, the radius of the rim hole of the tire, and the width of the tire,
After that, decide the length of each part,
This is a method of manufacturing a tire holder in which the tire is used for fendering by being inserted into the inner space of the tire and suspended by a hanging tool.
[6] Addendum 6 states that when inserting into the inner space of the tire, the tire is inserted so as to push the tire side surface near the rim hole of the tire, and each part is shaped so that it cannot be easily removed from the inner space of the tire. This is a method for manufacturing a tire holder according to appendix 4 or 5, in which the length is determined.

The tire holder of the present invention is used in ports, quays, and ships, and has industrial applicability.

1, 1a, 1b, 2, 3, 4: Tire holder 7, 7a, 7b: Tire 8: Hanging tool 9: Locking tool 11, 14, 15, 18, 19, 21, 24, 25, 28, 31 , 34, 38, 41, 42, 44, 45: End portions 12, 32, 33: Bend portions 13, 22, 23: Branch portions 16, 17, 26, 27: Fastening members 30, 35: Parts 36, 36a, 37, 37a: Recesses 46, 47: Burring process 71: Tread surface 72: Side surface 73: Rim holes 74a, 74b: Tire inner surface a, b, c, d: Length of each part of tire holder Ro: Tire outer surface radius Ri: Tire Inner radius Rr: Rim hole radius
t: Tire thickness w: Tire width

Claims (6)

two upper ends that support the tire at the upper inner side of the tire;
two attachment points for locking tools provided at positions lowered substantially parallel to the upper ends of the two places;
a lower end portion disposed approximately vertically below at least one of the upper end portions and below the attachment points of the two locking devices;
In a tire holder provided with
The straight line length connecting the upper end portions of the two locations is the maximum length that allows the tire holder to be inserted into the tire,
A substantially vertical length connecting the upper end to the lower end is set to a length that can prevent the tire holder from rotating in the lateral direction inside the tire;
The length in the approximately vertical direction from the upper end of the two locations to the attachment points of the two anchoring devices that are lowered approximately parallel to each other is such that the attachment points of the two anchoring devices are approximately equal to the distance between the two attachment points of the tire rim hole. The length is within the upper semicircle,
By inserting it into the inner space of the tire and suspending it with a hanging tool,
A tire holder in which the tire is used for fendering. two upper ends that support the tire at the upper inner side of the tire;
two attachment points for locking tools provided at positions lowered substantially parallel to the upper ends of the two places;
a lower end portion disposed approximately vertically below at least one of the upper end portions and below the attachment points of the two locking devices;
A fastening member for fastening the fasteners at each of the two fastener attachment locations;
In a tire holder provided with
The straight line length connecting the upper end portions of the two locations is the maximum length that allows the tire holder to be inserted into the tire,
A substantially vertical length connecting the upper end to the lower end is set to a length that can prevent the tire holder from rotating in the lateral direction inside the tire;
The length in the approximately vertical direction from the upper end of the two locations to the attachment points of the two anchoring devices that are lowered approximately parallel to each other is such that the attachment points of the two anchoring devices are approximately equal to the distance between the two attachment points of the tire rim hole. The length is within the upper semicircle,
By inserting it into the inner space of the tire and suspending it with a hanging tool,
A tire holder in which the tire is used for fendering. When either the left or right side of the tire holder is inserted into the inner space of the tire, the other side of the tire holder that is not inserted into the inner space of the tire is inserted into the side surface of the tire near the rim hole of the tire. By inserting the tire into the side surface of the tire near the rim hole of the tire with a predetermined overlap occurring, the upper side of the two locations is inserted so as to be in a shape that cannot be easily removed from the inner space of the tire. A straight line length that connects the ends, a substantially vertical length that connects the upper end to the lower end, and attachment locations for the two locking devices that are lowered approximately parallel to each other from the upper end of the two locations. 3. The tire holder according to claim 1 , wherein the length in the substantially vertical direction is determined. measuring the inner radius of the tire and the radius of the rim hole of the tire;
A straight line length connecting the upper ends of the two locations, which is the maximum length that allows the tire holder to be inserted into the tire after that;
a substantially vertical length connecting the upper end to the lower end, the length of which can prevent the tire holder from rotating in the lateral direction inside the tire;
The attachment points of the two locking devices have a length that is in the upper semicircle of the rim hole of the tire; from the upper end of the two points to the installation points of the two locking devices that are lowered approximately parallel to each other; Determine the length in the approximately vertical direction and the length, respectively,
2. The method of manufacturing a tire holder according to claim 1, wherein the tire is used for fendering by being inserted into an inner space of the tire and suspended by a hanging tool. measuring the inner radius of the tire, the radius of the rim hole of the tire, and the width of the tire ;
A straight line length connecting the upper ends of the two locations, which is the maximum length that allows the tire holder to be inserted into the tire after that;
a substantially vertical length connecting the upper end to the lower end, the length of which can prevent the tire holder from rotating in the lateral direction inside the tire;
The attachment points of the two locking devices have a length that is in the upper semicircle of the rim hole of the tire, and the length extends from the upper end of the two points to the installation points of the two locking devices that are lowered approximately parallel to each other. Determine the length in the approximately vertical direction and the length, respectively,
2. The method of manufacturing a tire holder according to claim 1, wherein the tire is used for fendering by being inserted into an inner space of the tire and suspended by a hanging tool. When either the left or right side of the tire holder is inserted into the inner space of the tire, the other side of the tire holder that is not inserted into the inner space of the tire is inserted into the side surface of the tire near the rim hole of the tire. By inserting the tire into the side surface of the tire near the rim hole of the tire with a predetermined overlap occurring, the upper side of the two locations is inserted so as to be in a shape that cannot be easily removed from the inner space of the tire. The length connecting the ends, the length in the substantially vertical direction connecting the upper end to the lower end, and the attachment points of the two locking devices that are lowered approximately parallel to each other from the upper ends of the two locations. 6. The method of manufacturing a tire holder according to claim 4, wherein the substantially vertical length of the tire holder is determined.

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