WO2007116534A1

WO2007116534A1 - Support core and vehicle wheel

Info

Publication number: WO2007116534A1
Application number: PCT/JP2006/310873
Authority: WO
Inventors: Fusayoshi Fukunaga; Yasuto Fukunaga
Original assignee: Fukunaga Office Co., Ltd.
Priority date: 2006-03-31
Filing date: 2006-05-31
Publication date: 2007-10-18
Also published as: WO2007116489A1; JPWO2007116534A1

Abstract

Provided are an easily installable support core (1) that is already activated before the tire is punctured and, when a puncture occurs, minimizes damage to the tire by quickly supporting it, and a vehicle wheel. A support core body mounted on a rim (3) of a vehicle wheel body (2) is movable toward the inner wall of the tire, and after the tire is installed on the vehicle wheel body, the support core body is fixed in position at least before the rotational speed of the wheel body reaches a predetermined level.

Description

Specification

Supporting core and vehicle wheel

Technical field

The present invention relates to a support core and a vehicle wheel. Specifically, the present invention relates to a support core and a vehicle wheel that can support run-flat running even when the vehicle tire is punctured.

Background art

[0002] At present, various technologies related to tires (run-flat tires) that can be run flat with pneumatic tires, that is, even if the tires are punctured, can be run with a certain distance of peace of mind have been proposed. For example, Patent Document 1 discloses a run-flat running by mounting a rigid support core on a rim facing the air chamber (cavity) of a rim-assembled pneumatic tire and supporting the tire with the support core. Technologies that enable this have been proposed.

That is, as shown in FIG. 15, a pneumatic tire 101 to which a support core 110 is applied is described, and the tire body 102 is supported by a rim 103 fitted to the tire beat portion 102A. The annular support core 110 inserted into the tire and supported by the rim 103 is divided into three in the circumferential direction, and it is described that each arc-shaped segment 111 is fastened to the annular fastening ring 115. Yes.

[0004] However, the support core described in Patent Document 1 suppresses the height of the support core in consideration of the gap force between the tire beat portion and the rim being inserted into the tire. On the other hand, the distance between the top of the tire tread (tire contact area) and the inner wall of the tire tread becomes longer. There were significant restrictions on operation and mileage.

[0005] Therefore, a plurality of fixed seats are provided on the outer peripheral surface of the rim, an active support frame is installed on the fixed seat, a block body is combined at the end of the support frame, and the support frame is a control part. While the tire is punctured, the control unit opens the support frame when the tire is punctured, and the support frame is extended outwardly with the outer peripheral surface force of the rim, and the tire can be controlled. techniques have been proposed (e.g., see Patent Document 2.) ₀ [0006] Patent Document 1: JP 2001-239814 A

Patent Document 2: Japanese Patent Laid-Open No. 2003-11605

Disclosure of the invention

Problems to be solved by the invention

[0007] However, in the device described in Patent Document 2, while the tire is punctured, the support frame extends the outer peripheral surface force of the rim outward, that is, after the tire is punctured, a countermeasure is taken. Because it is a device that performs this, there are cases where it cannot be dealt with quickly.

[0008] The present invention was devised in view of the above points, and by disposing the front force support core body in which the tire is punctured at a predetermined position, it is possible to quickly deal with it, It is an object of the present invention to provide a support core and a vehicle wheel that can cope with puncture under all circumstances.

Means for solving the problem

[0009] In order to achieve the above object, the support core according to claim 1 is attached to a rim of the vehicle wheel main body and is directed to an inner wall of a tire attached to the vehicle wheel main body. In a support core including a support core body configured to be movable, the support core body is housed in a range that does not exceed the height of the rim until the tire is mounted on the vehicle wheel body. In addition, the position where the support core body contacts the inner wall of the tire or the tire until the vehicle wheel body reaches a predetermined rotational speed at the latest after the tire is mounted on the vehicle wheel body. The inner wall force is fixed by moving to a position where a predetermined interval is maintained.

[0010] Here, until the tire is mounted on the vehicle wheel body, the supporting core body is stored in a range that does not exceed the height of the rim, so that the supporting core body hinders the tire mounting operation. This makes it possible to mount the tire very easily.

In addition, the position where the supporting core body contacts the inner wall of the tire or the inner wall force of the tire maintains a predetermined interval until the vehicle wheel main body reaches the predetermined number of rotations after the tire is mounted on the vehicle wheel main body. To move to the position where the tire is fixed, i.e., the front force at which the tire punctures, and the position where the supporting core body contacts the inner wall of the tire or the position where the inner wall force of the tire also maintains the predetermined interval is fixed. Tire puncture to be Sometimes the tire inner wall can be supported very quickly to prevent tire damage.

The “predetermined number of rotations” here refers to the generation of a distal force that can move the supporting core body to a position that contacts the inner wall of the tire or a position that maintains the inner wall force of the tire at a predetermined interval. This means that it is not necessary to run the vehicle, such as attaching a vehicle wheel to the vehicle body and manually rotating the vehicle wheel strongly. Further, the “predetermined interval” means an interval at which the vehicle can travel by supporting the tire with the support core body even if the tire is punctured. Further, the term “mounted” here includes a state in which at least one side of a tire is fitted to a vehicle wheel body. That is, when attaching a tire to a vehicle wheel body, it is necessary to fit both sides of the tire to a vehicle wheel. After at least one of the tires is fitted to the vehicle wheel body, the support core body Since there is no hindrance to the fitting operation of the tire even if it moves, “installation” includes a state in which at least one side of the tire is fitted to the vehicle wheel body.

[0011] In order to achieve the above object, a vehicle wheel according to claim 13 is attached to a vehicle wheel body and a rim of the vehicle wheel body, and is attached to the vehicle wheel body. A support core body configured to be movable toward the inner wall of the tire, wherein the support core body has a height of the rim until the tire is mounted on the vehicle wheel body. And a position where the vehicle wheel body contacts the inner wall of the tire until the vehicle wheel body reaches a predetermined rotational speed at the latest after the tire is mounted on the vehicle wheel body or the tire. The inner wall force is moved and fixed to a position where a predetermined interval is maintained.

[0012] Here, until the tire is mounted on the vehicle wheel body, the supporting core body is stored in a range not exceeding the height of the rim, so that the supporting core body hinders the tire mounting operation. This makes it possible to mount the tire very easily.

In addition, the position where the supporting core body contacts the inner wall of the tire or the inner wall force of the tire maintains a predetermined interval until the vehicle wheel main body reaches the predetermined number of rotations after the tire is mounted on the vehicle wheel main body. To move to a fixed position, i.e., the front force at which the tire punctures, or the position where the support core body contacts the tire inner wall or the tire Since the inner wall force is also moved and fixed to a position where a predetermined interval is maintained, the tire inner wall can be supported very quickly during tire puncture to suppress damage to the tire.

The “predetermined number of rotations” here means a position where the supporting core body contacts the inner wall of the tire or a position where the inner wall force of the tire can be moved to a position where a predetermined interval is maintained. This means that it is not necessary to run the vehicle, such as attaching a vehicle wheel to the vehicle body and manually rotating the vehicle wheel strongly. Further, the “predetermined interval” means an interval at which the vehicle can travel by supporting the tire with the support core body even if the tire is punctured. Further, the term “mounted” here includes a state in which at least one side of a tire is fitted to a vehicle wheel body. That is, when attaching a tire to a vehicle wheel body, it is necessary to fit both sides of the tire to a vehicle wheel. After at least one of the tires is fitted to the vehicle wheel body, the support core body Since there is no hindrance to the fitting operation of the tire even if it moves, “installation” includes a state in which at least one side of the tire is fitted to the vehicle wheel body.

The invention's effect

[0013] In the support core and the vehicle wheel to which the present invention is applied, it is possible to maintain the posture to prepare for the forward force puncture where the tire punctures, and at the time of puncture, the tire is quickly supported by the support core body. This minimizes damage to the tires and enables stable running over a long period of time.

BEST MODE FOR CARRYING OUT THE INVENTION

[0014] Hereinafter, embodiments of the present invention will be described with reference to the drawings to provide an understanding of the present invention.

FIG. 1 is a schematic view for explaining a support core (1) to which the present invention is applied. The support core 1 shown here is a first attached to the outer peripheral surface of a rim 3 of a vehicle wheel body 2. FIG. Like the first support 5a, the second support 5a is attached to the outer peripheral surface of the rim 3 of the vehicle wheel body 2 so as to face the first support 5a with a predetermined distance. The support 5 includes a support 5 b, a rod-like arm 6 that is rotatably supported between the first support 5 a and the second support 5 b, and a support 7 that is attached to one end of the arm 6. The support part 7 includes a base part 7A and a pressing part 7B. The base part is a member (for example, aluminum material) that maintains strength that can support the pressing part with a downward force, and the pressing part is made of a rubber material that is highly elastic and presses the inner wall of the tread part of the tire. And support. Note that a structure including the first support column 5a, the second support column 5b, the arm portion 6, and the support portion 7 is an example of the support core body.

[0015] Here, in this embodiment, the force arm portion 6 described by taking the rod-shaped arm portion 6 as an example is a rod-like shape as long as it rises toward the inner wall of the tread portion of the tire. There is no need. Further, in this embodiment, the pressing portion 7B, which also has a rubber material force, is described as an example. If the pressure pressing portion 7B can support the inner wall of the tread portion of the tire, the rubber material force is not necessarily required. For example, it may be composed of an air layer inside.

[0016] In addition, a through hole (through hole) 8 having a circular cross section for inserting a mandrel into the first support column, and a concave part with a circular cross section for inserting the mandrel into the second support column (non- (Through hole) 9 is provided in the arm portion with a through-hole (through hole) 10 having a polygonal cross section (for example, a hexagonal cross section) for inserting the mandrel, and the first strut side force is also applied to the second strut A mandrel 11 is inserted toward the side.

The mandrel 11 has a base end portion and a tip end portion having a circular cross section, and an intermediate portion having a polygonal cross section. That is, the region corresponding to the through hole 8 provided in the first support column 5a and the recess 9 provided in the second support column 5b has a circular cross section in order to achieve free rotation. A region corresponding to the provided through hole 10 has a polygonal cross section (for example, a hexagonal cross section) in order to avoid idle rotation in the arm portion. Further, the outer region (region opposite to the arm portion) of the through hole 8 provided in the first support column 5a has a larger diameter than the inner region (arm portion side region). In addition, a screw thread is formed on the inner wall surface of the outer region of the through hole 8 provided in the first support column 5a, and a fixture 12 having a screw thread provided on the outer peripheral surface is screwed together. The fixture 12 is provided with a bottomed recess, and a plate-like panel 13 attached to the base end of the mandrel 11 and a coil panel 14 are accommodated in the recess. Further, an auxiliary recess 15 in which the end of the plate-like panel 13 is fitted is provided on the inner wall surface of the recess. In addition, the member comprised from the plate-shaped panel 13, the coil panel 14, and the fixing tool 12 is an example of a control part.

[0017] In the support core configured as described above, the vehicle wheel body 2 is in a sideways state (first 2), the coil panel 14 is compressed by the weight of the mandrel 11, so that the mandrel 11 is the first one, because the mandrel 11 is substantially perpendicular to the ground. It will move in the direction of 1 column. Then, when the mandrel 11 moves in the direction of the first support column, the plate-shaped panel 13 is expanded outward, and when the plate-shaped panel 13 is expanded, the end of the plate-shaped panel is fitted with the auxiliary recess 15. As a result, the rotation of the mandrel 11 is locked, and the arm 6 cannot be raised. When the rotation of the mandrel 11 is locked, the arm portion 6 and the support portion 7 are configured to be accommodated in a range not exceeding the height of the rim 3.

On the other hand, when the vehicle wheel body 2 is in the vertically oriented state (an example of the second state), the mandrel 11 is substantially horizontal with respect to the ground, as shown in FIG. 2 (b). The coil panel 14 is released from the weight of the mandrel 11, and the mandrel 11 moves in the direction of the second column by the elastic force of the coil panel 14. Then, when the mandrel 11 moves in the direction of the second column, the plate-like panel 13 is shrunk inward, and the plate-like panel 13 is shrunk so that the end of the plate-like panel and the auxiliary recess 15 are fitted. As a result, the rotation of the mandrel 11 is unlocked, and the arm 6 can be raised.

2 shows a state in which the mandrel 11 is not inserted into the through hole 8 or the recess 9 for the sake of convenience (specifically, in FIG. 2 (a), the mandrel 11 is inserted into the recess 9). In FIG. 2 (b), the mandrel is inserted into the through hole 8 and the state is shown in FIG. 2 (b). However, actually, the arm portion 6 is pivotally supported by the columns 5a and 5b. The mandrel is inserted into the through-hole 8 and the recess 9 in both the horizontal state and the vertical state so as to be able to slide.

[0020] Here, the vehicle wheel body 2 is in a lateral state when the tire is mounted on the vehicle wheel body 2, and the vehicle wheel body is mounted when the tire is mounted on the vehicle wheel body 2 and attached to the vehicle body. Considering that 2 is in the vertical orientation, the arm 6 cannot stand up when the tire is mounted on the vehicle wheel body 2, and the arm 6 is not mounted after the tire is mounted on the vehicle wheel body 2. Start-up is possible

In the present embodiment, the case where the mandrel 11 is locked and the arm portion 6 cannot be moved when the tire is mounted on the vehicle wheel body 2 is described as an example. If it does not interfere with the work of mounting the tire on the wheel body 2, it is not necessarily a mandrel There is no need to lock 11 and make arm 6 immovable.

In the present embodiment, the case where the first state is the horizontal state and the second state is the vertical state is described as an example. However, the arm unit 6 is moved in the first state. If the arm portion 6 can be moved in the second state, the first state is not necessarily in the horizontal state and the second state is not necessarily in the vertical state.

[0022] The supporting core (1) to which the present invention is applied is in a state in which the rotation of the mandrel 11 is unlocked and the arm portion 6 can be raised by placing the vehicle wheel body 2 in the vertical orientation. However, the subsequent rise of the arm 6 will be described below with a specific example. Needless to say, the rising method of the arm portion 6 is not limited to the method shown below, and may be raised by any method.

[0023] [1 Rising by centrifugal force]

When the vehicle wheel body 2 rotates, the arm portion 6 receives a centrifugal force due to the rotation of the vehicle wheel body 2. Specifically, for example, the arm unit 6 receives a centrifugal force by running the vehicle with the vehicle wheel body 2 attached thereto or rotating the vehicle wheel body 2 even if the vehicle wheel body 2 is attached to the vehicle. It will be. Then, when the vehicle wheel body 2 rotates, the arm portion 6 rises around the mandrel 11 and the support portion 7 moves toward the inner wall of the tread portion of the tire.

When the arm part 6 stands up by centrifugal force, that is, the arm part 6 is housed in a range not exceeding the rim height (see Fig. 3 (a)). The force can also support the inner wall of the tread part of the tire. (See Fig. 3 (b).) When moving to (Fig. 3 (c)), the other end of the arm portion 6 is attached between the first column 5a and the second column 5 b (Fig. 3 (c)). (Refer to 16) The arm 6 is fixed in a standing state.

[0024] [2 Standing up by its own weight]

Since the arm part 6 is affected by gravity, the arm part 6 positioned in the lower region of the vehicle wheel body 2 stands up around the mandrel 11 by its own weight, and the support part 7 faces the inner wall of the tread part of the tire. Will move.

When the arm part 6 stands up by its own weight, that is, the arm part 6 is housed in a range not exceeding the height of the rim 3 (see Fig. 3 (a)). The force can also support the inner wall of the tread part of the tire. ( See Figure 3 (b). ), The other end of the arm portion 6 is fixed by a clamping type fixing member (see FIG. 3 (c)) 16 attached between the first column 5a and the second column 5b. Part 6 is fixed in the standing state.

[3-Rise due to pressure change in the air chamber (1)]

FIG. 4 is a schematic diagram for explaining an example of a support core that can be raised by bringing the air chamber into a high pressure state. The support core shown here has a structure in which the arm portion 6 has a hollow portion. It is configured in a hollow shape. A movable partition plate 17 is disposed in the hollow portion of the arm portion 6, and the partition plate 17 divides the hollow portion into the first hollow portion 17 a (the hollow portion on the mandrel side) and the second hollow portion 17 b (the mandrel and the shaft). Is divided into a hollow portion on the opposite side. Here, the second hollow portion 17b is open and is configured to have the same pressure as the air chamber. On the other hand, the first hollow portion 17a is completely sealed, and the internal pressure of the first hollow portion 17a is set to normal pressure (for example, 1 atm). In addition, a plate-like member 18 having a thread on the surface is attached to the partition plate 17, and the other end of the plate-like member 18 is mated with the mandrel 11 provided with a screw thread.

By the way, after the tire is mounted on the vehicle wheel body 2, it is necessary to fill the air chamber formed between the vehicle wheel body 2 and the tire with air. In other words, after the tire is mounted on the vehicle wheel body 2, the air chamber is filled with air, and the air chamber is brought into a high pressure state. When the air chamber is in a high pressure state, the second hollow portion is also in a high pressure state, and the partition plate 17 moves in the direction of the mandrel due to the pressure difference between the first hollow portion 17a and the second hollow portion 17b. As the partition plate 17 moves in the direction of the mandrel, the plate-like member 18 also moves in the direction of the mandrel. The support part 7 moves up toward the inner wall of the tread part of the tire.

When the arm portion 6 rises due to the pressure difference between the first hollow portion 17a and the second hollow portion 17b, the arm portion 6 is stored in a range not exceeding the height of the rim 3 (Fig. 3 (a )) To the state where the inner wall of the tread part of the tire can be supported (see Fig. 3 (b)), the other end of the arm part 6 is located between the first column 5a and the second column 5b. (See Fig. 3 (c).) The arm 6 is fixed in a standing state. It becomes.

[4 Rise by pressure change in one air chamber (2)]

FIG. 5 is a schematic diagram for explaining another example of a supporting core that can be raised by setting the air chamber to a high pressure state. In the supporting core shown here, the arm portion 6 has a hollow portion. It is configured in such a hollow shape. A movable cutting plate 17 is disposed in the hollow portion of the arm portion 6, and the hollow portion is divided into a first hollow portion 17 a and a second hollow portion 17 b by the partition plate 17. Here, the second hollow portion 17b is open and is configured to have the same pressure as the air chamber. On the other hand, the first hollow portion 17a is completely sealed, and the internal pressure of the first hollow portion 17a is set to normal pressure (for example, 1 atm). Further, a rod-like member 19 is attached to the partition plate 17, and the other end of the rod-like member 19 is disposed in the vicinity of an injection switch (not shown) of a cylinder 20 that is compressed and filled with air. Note that, when the injection switch of the cylinder 20 is pushed, the air compressed and filled in the cylinder is injected from the injection hole 21 provided in the arm portion 6.

By the way, after the tire is mounted on the vehicle wheel body 2, it is necessary to fill the air chamber formed between the vehicle wheel body 2 and the tire with air. In other words, after the tire is mounted on the vehicle wheel body 2, the air chamber is filled with air, and the air chamber is brought into a high pressure state. When the air chamber is in a high pressure state, the second hollow portion is also in a high pressure state, and the partition plate 17 moves in the cylinder direction due to the pressure difference between the first hollow portion 17a and the second hollow portion 17b. Become. When the partition plate 17 moves in the cylinder direction, the rod-shaped member 19 also moves in the cylinder direction. When the rod-shaped member 19 pushes the injection switch of the cylinder 20, air is injected from the injection hole 21. As a result, the arm portion 6 rises around the mandrel 11 by the impact at that time, and the support portion 7 moves toward the inner wall of the tread portion of the tire.

When the arm portion 6 stands up due to the impact of air injected from the injection hole 21, that is, the arm portion 6 is stored in the range not exceeding the height of the rim 3 (see FIG. 3 (a)). When the force moves to a state where the inner wall of the tread part of the tire can be supported (see Fig. 3 (b)), the other end of the arm part 6 is attached between the first strut 5a and the second strut 5b. The holding type fixing member (see FIG. 3 (c)) is fixed by 16, and the arm portion 6 is fixed in a standing state. [0027] [5—Rise due to wind pressure of air filling the air chamber]

After the tire is mounted on the vehicle wheel body 2, the air chamber formed between the vehicle wheel body 2 and the tire is filled with air. It is possible to move the support portion 7 toward the inner wall of the tread portion of the tire by blowing the air to 6 and applying air pressure to raise the arm portion 6 around the mandrel 11. When the arm 6 rises due to wind pressure, that is, the arm 6 is stored in a range not exceeding the height of the rim 3 (see Fig. 3 (a)), the force can also support the inner wall of the tread ring portion of the tire. When moved to the state (see Fig. 3 (b)), the other end of the arm portion 6 is held between the first support column 5a and the second support column 5b (Fig. 3 (c) Refer to))) Fixed by 16 and the arm 6 is fixed in a standing state.

[0028] [6—Other rises]

As another method, after releasing the rotation lock of the mandrel 11 by setting the vehicle wheel body 2 in the vertical state, (1) repulsive force (spring elastic force, shape memory alloy force, magnet magnetic force) Arm part 6 can be started up by using an explosive force using explosives, etc.), or (2) the mandrel 11 can be turned up by turning on the mandrel 11 by energizing, and (3 ) The arm 11 may be raised by rotating the mandrel 11 by applying wind pressure to the mandrel 11, or (4) The arm 6 may be raised by filling the expandable container with air. good. Further, the arm portion may be raised by using each of the above methods in combination.

[0029] In the above-described supporting core (1) to which the present invention is applied, the arm portion 6 is housed within the range of the height of the rim 3 and cannot be moved at the stage where the tire is mounted on the vehicle wheel body 2. Therefore, it is very easy to install tires.

[0030] In addition, the arm section 6 is (1) when the vehicle wheel body 2 reaches a predetermined rotational speed when it stands up with centrifugal force (the rotational speed sufficient for the arm section to stand up with centrifugal force). (2) When the vehicle wheel body 2 starts up by its own weight, it starts up when the vehicle wheel body 2 makes one rotation. (3) When it starts up due to a pressure change in the air chamber, it starts up when the air chamber is filled with air. (4) When the vehicle starts up with the air pressure of the air filled in the air chamber, it rises when the air chamber is filled with air, that is, at the latest until the vehicle wheel body 2 reaches the predetermined rotational speed. As a result, the front force of tire puncture It is possible to maintain the attitude to support the inner wall of the tire part, and the inner wall of the tread part of the tire can be quickly supported by the support part at the time of puncture.

Therefore, even if a tire punctures, there is no need for immediate repairs, and it is possible to travel safely without worrying about punctures while driving on storms, nights, highways, and high-traffic roads. Can be used.

FIG. 6 is a schematic cross-sectional view for explaining a modified example of the supporting core (1) to which the present invention is applied.

The rod-shaped arm portion 6 of the support core 1 shown here is supported by a support pipe 6A having a hollow portion formed therein, a coil spring 23 attached to the end portion thereof, and an urging force of the coil spring 23. A middle support bar 6B that moves toward the inner wall of the tread part of the tire (toward the radial outside of the vehicle wheel body) inside the hollow part of the pipe 6A, and a leaf spring 24 located at the tip of the middle support bar 6B And a tip support bar 6C that applies a biasing force to the leaf spring 24 by applying a hook-type fixing member 25 to the projection 6D. A support portion 7 including a pressing portion 7B and a base portion 7A is attached to the tip of the tip support rod 6C.

In addition, a leaf spring type fixing member 26 having a projecting member 26A is attached to the side surface of the support pipe 6A. The support core 1 is initially attached to the vehicle body 2 and the arm portion 6 is raised. In the state before the support portion 7 receives the impact of the ground force, the projecting member 26A is in contact with the middle support rod 6B and pushed outward. In the case of the supporting core 1 of the present modification, the support portion 7 may be configured to be located approximately 3 cm away from the inner wall of the tread portion when the arm portion 6 is raised.

[0032] Now, when the internal pressure of the tire decreases due to puncture or the like, the support portion 7 located approximately 3 cm away from the inner wall force of the tread portion of the tire via the tire is pressed by the impact from the ground. When the leaf spring 24 of the tip support rod 6C is bent by the force at the time, the hook-type fixing member 25 is pushed by the leaf spring 24 and the convex portion 6D is also released, and is supported by the magnet 27 attached to the side surface of the support pipe 6A Fixed to the side of pipe 6A. The support portion 7 together with the tip support rod 6C whose hook-type fixing member 25 is released presses the inner wall of the tread portion of the tire by the force of the leaf spring 24, and supports the inner wall of the tread portion of the tire. Ma At this time, when the middle support bar 6B moves toward the inner wall of the tread portion of the tire due to the biasing force of the coil spring 23 and the protruding member 26A is not pushed outward by the middle support bar 6B, the biasing force of the leaf spring 26B The projecting member 26A enters the cavity of the support pipe 6A, and the projecting member 26A supports the middle support bar 6B so that the middle support bar 6B does not return. Here, in this embodiment, the case of using the leaf spring 24 and the coil spring 23 is taken as an example. However, if it is a spring, it is not always necessary to use a leaf spring or a coil spring!

[0033] In the present embodiment, the force is described by taking as an example the case where the support portion 7 further moves toward the inner wall of the tread portion due to the impact of the support portion 7 from the ground. S, for example, it is not always necessary to move toward the inner wall of the tread due to impact from the ground. (1) Apply an adhesive material etc. to the surface of the support 7 and the tire Then, the inner wall of the tread part may contact the surface of the support part 7 so that the support part and the tire adhere to each other so that the tire pulls the support part up. (2) Due to the pressure drop in the air chamber of the tire Supporting part

It is also possible to move 7 toward the inner wall of the tread part of the tire!

[0034] In the above-described modification of the support core (1) to which the present invention is applied, the support portion 7 moves toward the inner wall of the tread portion of the tire due to the impact of the ground force by the puncture. If the support 7 is fixed at a position that is slightly separated from the inner wall force of the tread portion of the tire, the comfort during running can be maintained, and at the time of puncture The tire can be supported quickly.

Even if the support portion 7 is fixed at a position where the inner wall force of the tire is slightly separated, the inner wall of the tread portion of the tire can be supported, but the support portion 7 force S inner wall of the tread portion is received by receiving an impact from the ground. It is possible to support the inner wall of the tire tread portion even more sufficiently.

FIG. 7 is a schematic cross-sectional view for explaining the support core (2) to which the present invention is applied. The support core 1 shown here is the outer peripheral surface of the rim 3 of the vehicle wheel body. A first body 28 attached to the first body 28, and a second body 29 provided in a cavity formed inside the first body 28. The second body 29 is provided in the first body 28. It is configured to be able to move in the hollow part toward the inner wall of the tread part of the tire (toward the radially outer side of the vehicle wheel body). Further, a leaf spring type fixing member 50 is attached to the side wall of the first main body 28. The leaf spring type fixing member 50 supports the second main body 29 so that the second main body 29 does not return after the second main body 29 moves toward the inner wall of the tread portion of the tire.

In addition, the second main body 29 is provided with a support portion 7 having a rubber material force rich in elasticity for pressing and supporting the inner wall of the tread portion of the tire. Further, a fitting recess 30 is provided on the inner wall of the second main body which is the lower side when the vehicle wheel main body 2 is in the horizontal state. Note that a structure including the first main body 28, the second main body 29, and the support portion 7 is an example of the support core main body.

[0036] Further, on the outer peripheral surface of the rim 3 of the vehicle wheel body, a control unit 32 having a cylindrical magnet bar 31 disposed therein is provided, and at the end of the control unit 32, a magnet bar is provided. Magnet 33 is bonded to repel the end of 31. For example, if the polarity of the end of the fitting recess side of the magnet bar 31 is the S pole, the magnet 33 is bonded to the end of the control unit 32 on the fitting recess side so as to be the polarity pole of the magnet bar side. The magnet 33 is bonded to the end of the control unit 32 opposite to the fitting recess so that the polarity on the magnet bar side is N pole. In addition, a fitting convex portion 34 that fits into the fitting concave portion is provided at the fitting concave side end portion of the magnet rod 31, and the fitting convex portion 34 is provided to extend to the outside of the control portion 32. ing.

[0037] In the support core configured as described above, when the vehicle wheel main body 2 is in the sideways state, the magnet rod 31 is substantially perpendicular to the ground. Similarly, the magnet bar 31 moves in the direction of the fitting recess by its own weight. Then, the magnet rod 31 moves in the direction of the fitting recess, the fitting projection 34 moves in the direction of the fitting recess, and the fitting projection 34 fits in the fitting recess 30 so that the second main body 29 is locked, and the second body 29 cannot be raised. When the second main body 29 is locked, the second main body 29 is configured to be stored in a range that does not exceed the height of the rim.

[0038] On the other hand, when the vehicle wheel body 2 is in the vertical state, the magnet bar 31 is substantially horizontal with respect to the ground, so that as shown in FIG. The magnet bar 31 is moved in the direction opposite to the fitting recess by the magnet 33 bonded to the magnet. Then, the magnet rod 31 moves in the direction opposite to the fitting concave portion, so that the fitting convex portion 34 moves in the direction opposite to the fitting concave portion 30 and the fitting convex portion 34 and the fitting concave portion 30 are fitted. As a result, the mouth of the second main body 29 is released and the second main body 29 can be raised. [0039] Here, the vehicle wheel body 2 is in a lateral state when the tire is mounted on the vehicle wheel body 2, and the vehicle wheel body is mounted at the stage where the tire is mounted on the vehicle wheel body 2 and attached to the vehicle body. Considering that 2 is in the vertical orientation, the second main body 29 cannot be raised at the stage where the tire is mounted on the vehicle wheel body 2, and the second after the tire is mounted on the vehicle wheel main body 2. The main body 29 can be raised.

[0040] In the present embodiment, the case where the second main body 29 is made immovable at the stage of attaching the tire to the vehicle wheel main body 2 is described as an example, but the vehicle wheel main body is described. It is not always necessary to lock the second main body 29 to make the second main body 29 immovable unless it interferes with the work of attaching the tire to 2.

[0041] The support core (2) to which the present invention is applied is in a state in which the second main body 29 is unlocked and the second main body 29 can be raised by setting the vehicle wheel 2 in a vertical state. However, the subsequent rise of the second main body 29 will be described below with a specific example. Needless to say, the rising method of the second main body 29 is not limited to the method shown below, and may be raised by any method.

[0042] [1 Rising by centrifugal force]

When the vehicle wheel main body 2 rotates, the second main body 29 receives a centrifugal force due to the rotation of the vehicle wheel main body 2. Then, when the vehicle wheel body 2 rotates, the second body 29 rises, and the support portion 7 moves toward the inner wall of the tread portion of the tire.

When the second main body 29 rises due to centrifugal force, that is, the second main body 29 is stored in the range not exceeding the height of the rim (see FIG. 8 (a)), the force also acts on the inner wall of the tread portion of the tire. When it moves to a state where it can be supported (see FIG. 8B), it is fixed by the leaf spring type fixing member 50, and the second main body 29 is fixed in a standing state.

[0043] [2 Standing up by own weight]

Since the second main body 29 is affected by gravity, the second main body 29 located in the lower region of the vehicle wheel main body 2 rises due to its own weight, and the support portion 7 moves toward the inner wall of the tread portion of the tire. It will be. When the second main body 29 stands up by its own weight, that is, the second main body 29 is stored in the range not exceeding the height of the rim (see FIG. 8 (a)), the force also supports the inner wall of the tread portion of the tire. When it moves to a possible state (see FIG. 8B), it is fixed by the leaf spring type fixing member 50, and the second main body 29 is fixed in a standing state.

[0044] [3 Rise by the wind pressure of the air filling the air chamber]

After the tire is mounted on the vehicle wheel body 2, the air chamber formed between the vehicle wheel body 2 and the tire is filled with air. At this time, the air to be filled is supplied to the second body. It is possible to move the support portion 7 toward the inner wall of the tread portion of the tire by raising the second main body 29 by blowing air to the inside (opposite side of the tire) and applying air pressure.

When the second main body 29 rises due to wind pressure, that is, the second main body 29 is stored in the range not exceeding the height of the rim (see FIG. 8 (a)), the force also supports the inner wall of the tread portion of the tire. When it moves to a possible state (see FIG. 8B), it is fixed by the leaf spring type fixing member 50, and the second main body 29 is fixed in a standing state.

[0045] [4 Other rises]

As another method, after releasing the lock of the second main body 29 by placing the vehicle wheel main body 2 in the vertical state, (1) repulsive force (spring elastic force, shape memory alloy force, magnet The second main body 29 may be started up using magnetic force, explosive force using gunpowder, etc.), or (2) the second main body 29 may be started up by energizing, and (3) The second main body 29 may be raised by using the impact force of the compressed air filled in the chamber, or (4) the second main body can be filled by filling the inflatable container with air. 29 may be launched. Further, the second main body 29 may be started up by using each of the above methods in combination.

[0046] In the support core (2) to which the present invention is applied, the second main body 29 is accommodated and moved within the height range of the rim 3 at the stage of mounting the tire on the vehicle wheel main body 2. Therefore, the tire can be mounted very easily.

[0047] In addition, the second main body 29 stands up until the vehicle wheel main body 2 reaches the predetermined number of rotations at the latest, and maintains a posture to support the inner wall of the tread portion of the tire before the tire punctures. It is possible to quickly and tire tread part at the support part at the time of puncture The inner wall can be supported.

FIG. 9 is a schematic cross-sectional view for explaining a modification of the support core (2) to which the present invention is applied. For convenience of explanation, the illustration of the fitting recess, the magnet rod, the control unit, and the magnet is omitted.

The support core 1 shown here includes a first body 28 attached to the outer peripheral surface of the rim 3 of the vehicle wheel body, and a second body provided in a cavity formed inside the first body 28. A main body 29 and a third main body 35 provided in a cavity formed inside the second main body 29, and the second main body 29 has a tread portion of a tire in the cavity in the first main body. The third body 35 is configured to move toward the inner wall (toward the radial outer side of the vehicle wheel body), and the third body 35 faces the inside of the cavity of the second body toward the inner wall of the tread portion of the tire. It is configured to be able to move. Further, leaf spring type fixing members 50 are attached to the side walls of the first main body 28 and the second main body 29, respectively, and these plate spring type fixing members 50 are connected to the second main body 29 and the third main body 29, respectively. After moving the main body 35 toward the inner wall of the tread part of the tire, support the second main body 29 and the third main body 35 and fix the second main body 29 and the third main body 35 so that they do not return. .

Further, the third main body 35 is provided with a support portion 7 having a rubber material force rich in elasticity for pressing and supporting the inner wall of the tread portion of the tire. Further, a coil spring 51 is attached to the bottom of the third main body 35, and the third main body is extended by a hook-type fixing member 52 that extends from the support portion 7 and is applied to a recess formed in the side wall of the second main body. A biasing force is applied to a coil spring 51 attached to 35. In the case of the support core of this modification, the support portion 7 has an inner wall force of the tire tread portion of approximately 3 cm when the second main body 29 is moved (the third main body is up and not). It is configured to be located at a certain distance.

In other words, the supporting core 1 of the present embodiment has a state in which the second main body 29 and the third main body 35 are housed in a range that does not exceed the height of the rim 3 (see FIG. 9 (a)). It is configured to move to a state where the inner wall of the tread can be supported (see Fig. 9 (b)).

[0049] Now, when the internal pressure of the tire decreases due to puncture or the like, the support portion 7 located approximately 3 cm away from the inner wall force of the tread portion of the tire via the tire is pressed by receiving an impact from the ground. Indentation force formed on the side wall of the second main body 29 by the force of the hook The third main body 35 with the fixed member 52 detached and the hook-type fixing member 52 released is pressed against the inner wall of the tread portion of the tire by the force of the coil spring 51 to support the inner wall of the tire tread portion. (See Figure 9 (c).)

[0050] In the above-described modification of the support core (2) to which the present invention is applied, the support portion 7 moves toward the inner wall of the tread portion due to the impact of the ground force by the puncture. Even if the support portion 7 is fixed at a position where the inner wall force of the tread portion of the tire is slightly separated, the tire can be supported quickly at the time of puncture. Even if the support portion 7 is fixed at a position where the inner wall force of the tire is slightly separated, the inner wall of the tread portion of the tire can be supported, but the support portion 7 force S inner wall of the tread portion is received by receiving an impact from the ground. It is possible to support the inner wall of the tire tread portion even more sufficiently.

FIG. 10 is a schematic cross-sectional view for explaining the support core (3) to which the present invention is applied. The support core 1 shown here includes a tire sidewall inner wall, a shoulder inner wall, It is a support plate 60 having a shape that matches the shape of the inner wall of the tread portion of the tire, and one end of which is rotatably supported on the side wall of the rim 3 of the vehicle wheel body in an alternate direction. A through hole 64 is formed at the end, and a magnet (for example, an S pole magnet) 61 is attached. Further, the support plate 60 is provided with a rubber member (not shown) rich in elasticity on the surface, and the rubber member is configured so as to directly contact the inner wall of the sidewall portion, the inner wall of the shoulder portion, and the inner wall of the tread portion of the tire. RU

In this embodiment, the description has been given by taking the support plate having the rubber member on the surface as an example. The force support plate does not necessarily need to have the rubber member, and may be a support plate made of an elastic material, for example.

[0052] In addition, a control portion 63 is provided on the outer peripheral surface of the rim 3 of the vehicle wheel body. The tip of the control unit 63 is configured to be inserted into a through hole 64 provided in the support plate 60, and a magnet having the same polarity as the magnet 61 (for example, a S pole magnet, not shown) is attached. The

[0053] In the support core configured as described above, when the vehicle wheel body 2 is in the sideways state, as shown in Fig. 10 (a), the control unit 63 is pressed against the support plate 60 side by its own weight. Being Therefore, the front end of the control unit 63 is inserted into a through hole 64 provided in the support plate 60, and the support plate 60 is locked, so that the support plate 60 cannot be raised. When the support plate 60 is locked, the support plate 60 is configured to be stored in a range that does not exceed the height of the rim.

[0054] On the other hand, when the vehicle wheel main body 2 is in the vertical state, as shown in FIG. 10 (b), the vehicle body 2 is released from the force pressed against the support plate 60 by its own weight. Due to the repulsive force between the magnet 61 attached to the plate 60 and the magnet attached to the control unit 63, the state in which the tip of the control unit 63 is inserted into the through hole 64 provided in the support plate 60 is released, and the support plate 60 The lock is released and the support plate 60 can be raised.

[0055] Here, the vehicle wheel body 2 is in a lateral state when the tire is mounted on the vehicle wheel body 2, and the vehicle wheel body is mounted when the tire is mounted on the vehicle wheel body 2 and attached to the vehicle body. Considering that 2 is in the vertical orientation, the support plate 60 cannot be raised at the stage where the tire is mounted on the vehicle wheel body 2, and after the tire is mounted on the vehicle wheel body 2, the support plate 60 Rise is possible.

In this embodiment, the case where the support plate 60 cannot be moved at the stage of attaching the tire to the vehicle wheel body 2 is described as an example. However, the tire is attached to the vehicle wheel body 2. It is not always necessary to lock the support plate 60 so that the support plate 60 cannot be moved if it does not interfere with the work of mounting.

[0057] The support core (3) to which the present invention is applied is such that the support plate 60 is unlocked and the support plate 60 is unlocked by rotating the vehicle wheel body 2 in the vertical orientation once. The force that enables the support plate 60 to rise up. The subsequent rise of the support plate 60 will be described below with a specific example. Needless to say, the rising method of the support plate 60 is not limited to the method described below, and may be raised by any method.

[0058] [1 Rising by centrifugal force]

When the vehicle wheel body 2 rotates, the support plate 60 receives a centrifugal force due to the rotation of the vehicle wheel body 2. As the vehicle wheel body 2 rotates, the support plate 60 rises, and the support plate 60 moves toward the inner wall of the tire sidewall. The Rukoto.

When the support plate 60 rises due to centrifugal force, that is, when the support plate 60 is housed in a range that does not exceed the height of the rim (see Fig. 11 (a)), the inner wall of the tire sidewall and the shoulder part When the support plate 60 comes into contact with the inner walls along the shape of the inner wall and the inner wall of the tread portion (see FIG. 11 (b)), the holding-type fixing member 16 attached to the side wall of the rim 3 of the vehicle wheel body 2 is used. The support plate 60 is fixed in a standing state.

[0059] [2 Standing up by its own weight]

Since the support plate 60 is affected by gravity, the support plate 60 positioned in the lower region of the vehicle wheel body 2 rises by its own weight, and the support plate 60 must move toward the inner wall of the tire sidewall. It becomes.

When the support plate 60 stands up due to its own weight, that is, when the support plate 60 is stored within the range not exceeding the height of the rim (see Fig. 11 (a)), the tire sidewall inner wall, shoulder inner wall and tread When the support plates 60 come into contact with these inner walls along the shape of the inner walls (see FIG. 11 (b)), they are fixed by the clamping type fixing members 16 attached to the side walls of the rim 3 of the vehicle wheel body 2. The support plate 60 is fixed in a standing state.

[0060] [3 Rise due to the wind pressure of the air filling the air chamber]

After the tire is mounted on the vehicle wheel body 2, the air chamber formed between the vehicle wheel body 2 and the tire is filled with air. At this time, the air to be filled is supplied to the support plate. By blowing air to the inside (opposite side of the tire) to apply air pressure and raising the support plate 60, the support plate 60 moves toward the inner wall of the tire sidewall.

When the support plate 60 rises due to wind pressure, that is, when the support plate 60 is stored in a range not exceeding the height of the rim (see Fig. 11 (a)), the tire sidewall inner wall, shoulder inner wall and tread When the support plates 60 come into contact with these inner walls along the shape of the inner walls (see FIG. 11 (b)), they are fixed by the clamping type fixing members 16 attached to the side walls of the rim 3 of the vehicle wheel body 2. The support plate 60 is fixed in a standing state.

[0061] [4 Other rises]

As another method, the support plate 60 can be obtained by placing the vehicle wheel body 2 vertically. After releasing the lock of (1), the support plate 60 may be raised using repulsive force (spring elastic force, shape memory alloy force, magnet magnetic force, explosive force using explosives, etc.) (2) The support plate 60 may be raised by energization, or (3) the support plate 60 may be raised by filling air into an inflatable container. Further, the support plate 60 may be started up by using each of the above methods in combination.

[0062] In the above-described support core (3) to which the present invention is applied, the support plate 60 is housed within the height range of the rim 3 and cannot be moved at the stage where the tire is mounted on the vehicle wheel body 2. Therefore, it is very easy to install tires.

[0063] Further, the support plate 60 rises at the latest by the time the vehicle wheel body 2 reaches the predetermined rotational speed, and the front force of the tire puncture is also caused by the tire sidewall inner wall, the shoulder inner wall, and the tread portion. It is possible to maintain the posture to support the inner wall, and at the time of puncture, the support plate 60 can quickly support the sidewall inner wall, shoulder inner wall and tread inner wall of the tire.

FIG. 12A and FIG. 12B are schematic cross-sectional views for explaining a modification of the support core (3) to which the present invention is applied. FIG. 12A (a) shows the tire The simplified fixed state before the support plate 60 contacts the inner wall of the side wall portion is shown, and FIG. 12A (b) shows that the simplified fixed state is released by an impact exceeding a predetermined force from the tire, and the support plate 60 further stands up. Fig. 12B (c) shows a state where the upper member is pressed (in contact with the inner wall of the side wall) .In Fig. 12A (b), the cover member is pushed up, and the cover member is no longer pressed. FIG. 12B (d) shows a state in which the support plate 60 is in contact with the inner wall of the tread portion and moved to the maximum outside.

[0065] In this modification, the support plate 60, one end of which is rotatably attached by the rotating shaft 71 to the hook-type mounting portion 70 from which the side wall force of the rim 3 protrudes, is located above the hook-type mounting portion 70 after rising. It is fixed by the leaf spring 73 on the outer side of the two-stage fixing member 72 having a U-shape protruding at the side wall force of the rim 3. At this time, the support plate 60 is in a state where it is in contact with the displacement of the inner wall of the tire side wall, the inner wall of the shoulder, and the inner wall of the tread of the tire, and is also in the horizontal part of the long side of the hook-type mounting part 70. The protruding member 74A of the attached plate spring 74 presses the support plate 60 and fixes it so that it does not fall downward. Further, the tip of one end of the support plate 60 protrudes inside the hook-type mounting portion 70, and a hook-type pressing portion 75 that presses the tip of one end of the support plate 60 is attached to the side wall of the rim 3. The leaf spring 76 is rotatably attached by a rotating shaft 77. In FIG. 12A (a), the hook-type pressing portion 75 is fixed by a hook-type fixing member 78 attached to the tip of the leaf spring 76, and is a coil spring 7 9 attached to the hook-type pressing portion 75. Will be in a state of being given an urging force.

[0066] In addition, the push-up member 80 that pushes up the tip of one end of the support plate 60 is opposed to the long-side horizontal portion of the hook-type mounting portion 70 and penetrates the short-side horizontal portion of the hook-type mounting portion 70 that is positioned therebelow. It is arranged in the state to do. Further, a cover member 81 that covers the upper end of the push-up member 80 is disposed on the surface of the horizontal portion of the short side of the hook-type mounting portion 70. In addition, a lever member 82 is rotatably attached to the surface perpendicular to the surface of the short side horizontal portion of the hook-type mounting portion 70 on which the lid member 81 is disposed by a rotating shaft portion 83. And a connecting member 84. Further, a leaf spring 74 having a projecting member 74A is attached to the surface of the lever member 82, and the projecting member 74A is fitted into a recess 85 formed in the push-up member 80.

In addition, a coil spring 87 is disposed between the lower end of the push-up member 80 and the pedestal 86 from which the side wall force of the rim 3 also protrudes, and is biased by the cover member 81 (see FIG. 12A). (See (a).)

[0067] Next, when the internal pressure of the tire decreases due to puncture or the like, the support plate 60 is also pressed by the ground force through the tire, and the tip of one end of the support plate 60 is hooked by the force at that time. The hook-type fixing member 78 is released by pressing the mold pressing portion 75, and the hook-type pressing portion 75 rotates about the rotary shaft portion 77 with the force of the coil spring 79 to press the tip of one end of the support plate 60. And presses the one end pressing portion of the lever member 82. Thus, as shown in FIG. 12A (b), the support plate 60 enters the U-shaped two-stage fixing member 72 beyond the inner leaf spring 88 of the two-stage fixing member 72, and the support plate 60 One end of the lever member 82 is fixed while the support plate 60 is in contact with the inner wall of the side wall portion, and the one end pressing portion of the pressed lever member 82 is lowered and the connecting member 84 is attached. The other end of the lever member 82 is raised, and the lid member 81 is pushed up to open. The coil spring 87 that has been given a biasing force by the lid member 81 pushes up the push-up member 80 upward when the lid member 81 is pushed up, and the push-up member 80 pushes up the tip of one end of the support plate 60. Here, since the force of the coil spring 87 that pushes up the push-up member 80 is larger than the pressing force of the leaf spring 74 attached to the long side horizontal portion of the hook-type attachment portion 70, the support plate 60 can be pushed up. In addition, the centrifugal force due to the rotation of the rim 3 when the vehicle is running is generally larger than the pressing force of the leaf spring 74 attached to the horizontal part of the long side of the hook-type attachment part 70. Can move towards.

When the support plate 60 reaches the inner wall of the tread portion, the push-up by the push-up member 80 stops. Further, the projecting member 74A of the leaf spring 74 attached to the lever member 82 is fitted into a recess 85 formed in the push-up member 80, so that the support plate 60 is prevented from lowering.

Here, as long as the support plate 60 can reach the inner wall of the tread portion by the centrifugal force generated by the rotation of the rim 3, it is not always necessary to push up the support plate 60 using the push-up member 80.

[0069] In the above-described modification of the support core (3) to which the present invention is applied, the support plate 60 moves toward the inner wall of the tread portion due to the impact of the ground force by the puncture. Even if the support plate 60 is fixed at a position slightly separated from the inner wall of the tread portion of the tire in a normal state, the tire can be quickly supported at the time of puncture.

Even if the support plate 60 is fixed at a position slightly away from the inner wall of the tire, the inner wall of the tread portion of the tire can be supported, but the support plate 60 is affected by the impact of the ground force. It is possible to support the inner wall of the tread portion of the tire even more sufficiently by being configured to be movable toward the vehicle.

FIG. 13 is a schematic diagram for explaining a supporting core (4) to which the present invention is applied. The supporting core 1 shown here is a supporting core (1) to which the present invention is applied. In the same manner as described above, the first strut 5a attached to the outer peripheral surface of the rim 3 of the vehicle wheel body, and the first strut 5 on the outer peripheral surface of the rim 3 of the vehicle wheel body similar to the first strut 5a. Rotate between the second strut 5b and the second strut 5a and the second strut 5b mounted so as to face each other at a predetermined distance from 5a It consists of a bar-shaped arm portion 6 that is freely supported and a support portion 7 attached to one end of the arm portion 6. Note that a structure including the first support column 5a, the second support column 5b, the arm portion 6, and the support portion 7 is an example of a support core body.

[0071] Further, the first support column 5a has a circular cross-sectional through hole (through hole) 8 for inserting the mandrel, and the second support column 5b has a circular cross-sectional recess for inserting the mandrel. (Non-through hole) 9 is provided in the arm portion 6 with a through-hole (through-hole) 10 having a polygonal cross-section (for example, a hexagonal cross-section) for inserting the mandrel. The mandrel 11 is inserted with the force toward the second column.

[0072] Further, the first support column 5a is provided with a control unit 38 configured in a hollow shape so that the inside thereof has a hollow portion. A movable partition plate 39 is disposed in the hollow portion of the control unit 38. The partition plate 39 allows the hollow portion to be divided into a first hollow portion 39a (a hollow portion on the mandrel side) and a second hollow portion 39b (the mandrel and the shaft). Is divided into a hollow portion on the opposite side. Here, the first hollow portion 39a is open and is configured to have the same pressure as the air chamber. On the other hand, the second hollow portion 39b is completely sealed, and the internal pressure of the second hollow portion 39b is higher than the normal pressure (for example, 1 atmospheric pressure) and the pressure in the air chamber (for example, 2) The pressure is set lower than (atmospheric pressure) (eg, 1.5 atmospheric pressure). Furthermore, a rod-like member 40 is attached to the partition plate 39, and the other end of the rod-like member can be passed through a hole 41a provided in the first support column 5a and a hole 4 lb provided in the mandrel 11. It is configured.

[0073] In the support core configured as described above, when the air chamber is in the normal pressure state, the first hollow portion is also in the normal pressure state, and the pressure in the first hollow portion 39a and the second hollow portion 39b Due to the difference, the partition plate 39 moves in the direction of the mandrel. When the partition plate 39 moves in the direction of the mandrel, the rod-shaped member 40 also moves in the direction of the mandrel, and the rod-shaped member 40 is passed through the hole 41b of the mandrel 11 as shown in FIG. The rotation of 11 is locked, and the rising force S of arm 6 becomes impossible. When the rotation of the mandrel 11 is locked, the arm portion 6 and the support portion 7 are configured to be accommodated in a range not exceeding the height of the rim 3.

[0074] On the other hand, if the air chamber is filled with air after the tire is mounted on the vehicle wheel body 2 and the air chamber is in a high pressure state, the pressure difference between the first hollow portion 39a and the second hollow portion 39b is caused. Therefore, the partition plate 39 moves in the opposite direction to the mandrel. Partition plate 39 is opposite to mandrel The rod-shaped member 40 also moves in the opposite direction to the mandrel by moving in the direction, and the state where the rod-shaped member 40 is inserted into the hole 41b of the mandrel 11 is released as shown in FIG. 11 is unlocked, and arm 6 can be raised.

[0075] The supporting core (4) to which the present invention is applied has a force that allows the arm portion 6 to stand up by releasing the rotation lock of the mandrel 11 by filling the air chamber with air. As for the subsequent rise of the arm portion 6, the same method as the rise of the arm portion in the support core (1) to which the present invention is applied can be considered.

[0076] In the above-described support core (4) to which the present invention is applied, the arm portion 6 is housed within the height range of the rim 3 and cannot be moved at the stage where the tire is mounted on the vehicle wheel body 2. Therefore, it is very easy to install tires.

[0077] Further, the arm portion 6 stands up by the time the vehicle wheel body 2 reaches a predetermined number of rotations at the latest, and maintains a posture to support the inner wall of the tread portion of the tire before the tire is punctured. It is possible, and at the time of puncture, the inner wall of the tread part of the tire can be quickly supported by the support part.

FIG. 14 is a schematic diagram for explaining a supporting core (5) to which the present invention is applied. The supporting core 1 shown here is a supporting core (2) to which the present invention is applied. Similarly, the first main body 28 attached to the outer peripheral surface of the rim 3 of the vehicle wheel main body, and the second main body 29 provided in the cavity formed inside the first main body 28, The second main body 29 is configured to be able to move in the hollow portion of the first main body toward the inner wall of the tread portion of the tire (toward the radial outside of the vehicle wheel main body). . Further, a leaf spring type fixing member 50 is attached to the side wall of the first main body 28, and the second spring body 29 is moved toward the inner wall of the tread portion of the tire. Later, the second body 29 is supported and fixed so that the second body 29 does not return.

In addition, the second main body 29 is provided with a support portion 7 having a rubber material force rich in elasticity for pressing and supporting the inner wall of the tread portion of the tire. Further, a fitting recess 30 is provided on the inner wall of the second main body 29. Note that a structure including the first main body 28, the second main body 29, and the support portion 7 is an example of a support core main body.

[0079] Further, the outer peripheral surface of the rim 3 of the vehicle wheel body 2 has a hollow portion inside. A control unit 38 configured in a hollow shape is provided. A movable partition plate 39 is arranged in the hollow portion of the control unit 38, and the partition plate 39 allows the hollow portion to be divided into a first hollow portion 39a (a hollow portion on the fitting recess side) and a second hollow portion 39b ( It is divided into a hollow portion on the opposite side of the fitting recess. Here, the first hollow portion 39a is open and is configured to have the same pressure as the air chamber. On the other hand, the internal pressure of the second hollow portion 39b is set to a pressure (eg, 1.5 atmospheric pressure) that is higher than normal pressure (eg, 1 atm) and lower than the pressure in the air chamber (eg, 2 atm) when filled with air. Has been. Further, a rod-like member 40 is attached to the partition plate 39, and the other end of the rod-like member 40 is configured to be able to fit into the fitting recess 30.

[0080] In the support core configured as described above, when the air chamber is in the normal pressure state, the first hollow portion is also in the normal pressure state, and the pressures of the first hollow portion 39a and the second hollow portion 39b Due to the difference, the partition plate 39 moves in the fitting recess direction. When the partition plate 39 moves in the direction of the fitting recess, the rod-shaped member 40 also moves in the direction of the fitting recess, and the rod-shaped member 40 is fitted in the fitting recess 30 as shown in FIG. Thus, the second main body 29 is locked, and the second main body 29 cannot be raised. When the second main body 29 is locked, the second main body 29 is configured to be stored in a range not exceeding the height of the rim 3.

On the other hand, if the air chamber is filled with air after the tire is mounted on the vehicle wheel body 2 and the air chamber is in a high pressure state, the pressure difference between the first hollow portion 39a and the second hollow portion 39b is caused. Therefore, the partition plate 39 moves in the direction opposite to the fitting recess 30. When the partition plate 39 moves in the opposite direction to the fitting recess 30, the rod-shaped member 40 also moves in the opposite direction to the fitting recess 30, and as shown in FIG. The second main body 29 is unlocked when the fitting with the fitting recess 30 is released, and the second main body 29 can be raised.

[0082] The support core (5) to which the present invention is applied allows the second body 29 to stand up by releasing the fitting between the rod-shaped member 40 and the fitting recess 30 by filling the air chamber with air. However, the subsequent rise of the second main body 29 may be the same method as the rise of the second main body in the support core (2) to which the present invention is applied.

[0083] In the support core (5) to which the present invention is applied, the second main body 29 is accommodated within the height range of the rim 3 and moved at the stage where the tire is mounted on the vehicle wheel main body 2. Impossible Therefore, the tire can be mounted very easily.

[0084] In addition, the second main body 29 rises at the latest until the vehicle wheel main body 2 reaches the predetermined number of revolutions, and the front force of the tire puncture also maintains the posture to support the inner wall of the tread portion of the tire. It is possible to support the inner wall of the tread portion of the tire quickly by the support portion at the time of puncture.

[0085] Here, in the support cores (1) to (3) to which the present invention is applied, the support core main body is unlocked by setting the vehicle wheel main body in a vertical state so that the support core main body can be raised. In the support cores (4) and (5) to which the present invention is applied, the support core body is unlocked by filling the air chamber with air, and can stand up. However, the method of unlocking the support core body is not limited to these examples.For example, by energizing the vehicle wheel body after attaching tires, Release may be performed.

Brief Description of Drawings

FIG. 1 is a schematic diagram for explaining a supporting core (1) to which the present invention is applied.

FIG. 2 is a schematic diagram for explaining locking of an arm part.

FIG. 3 is a schematic diagram for explaining the rising of the arm portion.

FIG. 4 is a schematic diagram for explaining an example of a support core that can be raised by bringing the air chamber into a high pressure state.

FIG. 5 is a schematic diagram for explaining another example of a supporting core that can be raised when the air chamber is in a high pressure state.

FIG. 7 is a schematic cross-sectional view for explaining a support core (2) to which the present invention is applied.

FIG. 8 is a schematic diagram for explaining the rising of the second main body.

FIG. 9 is a schematic cross-sectional view for explaining a modified example of the support core (2) to which the present invention is applied.

FIG. 10 is a schematic cross-sectional view for explaining a support core (3) to which the present invention is applied.

FIG. 11 is a schematic diagram for explaining the rising of the support plate. FIG. 12A is a schematic sectional view for explaining a modification of the supporting core (3) to which the present invention is applied.

(1).

FIG. 12B is a schematic cross-sectional view for explaining a modification of the supporting core (3) to which the present invention is applied.

(2).

FIG. 13 is a schematic diagram for explaining a supporting core (4) to which the present invention is applied.

FIG. 14 is a schematic diagram for explaining a supporting core (5) to which the present invention is applied.

FIG. 15 is a cross-sectional view for explaining a conventional support core.

Explanation of symbols

1 Supporting core

2 Vehicle wheel body

3 rims

5a 1st strut

5b 2nd strut

6 Arm

6A support pipe

6B Medium support rod

6C Tip support rod

6D convex part

7 Support section

7A base

7B Pressing part

8 Passage hole

9 Recess

10 Through hole

11 mandrel

12 Fixture

13 Plated panel

14 Coil panel Auxiliary recess Nipping type fixing member Partition plate

a First hollow part b Second hollow part

Plate member Rod member Cylinder

Injection hole

= 3 spring, leaf spring

Leaf spring type fixing member A Protruding member

Magnet

First body Second body Mating recess Magnet bar

Control unit

Magnet

Mating convex part Third body Control part

Divider

a First hollow part b Second hollow part

Rod member a Hole b Hole

Leaf spring type fixing member

= 3 Gil Spring Hook type fixing member Support plate

Magnet

Control unit

Through hole

Hook-type mounting part Rotating shaft part Two-stage fixing member Leaf spring

Leaf spring

A Protruding member

Hook type pressing part Leaf spring

Rotating shaft Hook type fixing member

= 3 Gil spring Press member Lid member

Lever member Rotating shaft part Connecting member Dimple

Pedestal

= 3 Gil Spring Inner leaf spring

Claims

The scope of the claims

[1] In a support core that is attached to a rim of a vehicle wheel body and includes a support core body that is configured to be movable toward the inner wall of a tire attached to the vehicle wheel body.

Until the tire is mounted on the vehicle wheel body, the supporting core body is housed in a range not exceeding the height of the rim,

The position where the support core body contacts the inner wall of the tire or the inner wall force of the tire after the tire is mounted on the vehicle wheel body until the vehicle wheel body reaches a predetermined rotational speed at the latest. Moves to a position where the interval is maintained and is fixed

Supporting core characterized by that.

[2] The support core body is made immovable until the tire is mounted on the vehicle wheel body.

The support core body can be moved after the tire is mounted on the vehicle wheel body.

The supporting core according to claim 1, wherein

[3] Before the air chamber formed between the vehicle wheel body and the tire is filled with air, the support core body is made immovable, and the air chamber is filled with air. Provided with a control unit that can move the support core body

The supporting core according to claim 1, wherein

[4] When the vehicle wheel body is in the first state, the support core body is made immovable, and the vehicle wheel body is brought into the first state force and the second state, whereby the support core body is Equipped with a control unit that can move the body

The supporting core according to claim 1, wherein

[5] The supporting core body moves toward the inner wall of the tire by a centrifugal force generated by the rotation of the vehicle wheel body.

The supporting core according to claim 1, wherein

[6] The supporting core body is directed against the inner wall of the tire by its own weight. Moving

The supporting core according to claim 1, wherein

[7] The supporting core body moves toward the inner wall of the tire by a repulsive force.

The supporting core according to claim 1, wherein

[8] The support core body moves toward the inner wall of the tire by pressure in an air chamber formed between the vehicle wheel body and the tire.

The supporting core according to claim 1, wherein

[9] The support core main body moves toward the inner wall of the tire by the wind pressure of air filled in the air chamber formed between the vehicle wheel main body and the tire.

The supporting core according to claim 1, wherein

[10] The supporting core body moves toward the inner wall of the tire when energized.

The supporting core according to claim 1, wherein

[11] The support core body is fixed by moving from the inner wall of the tire to a position maintaining a predetermined distance, and the fixed support core body receives an impact exceeding a predetermined force from the inner wall of the tire. When it is received, the lock is released, and it moves further toward the inner wall of the tire and is fixed.

The supporting core according to claim 1, wherein

[12] The support core body is fixed by moving from the tire inner wall to a position that maintains a predetermined distance, and the fixed support core body is formed between the vehicle wheel body and the tire. When the pressure in the air chamber falls below a predetermined value, the fixation is released, and it is further moved and fixed toward the inner wall of the tire

The supporting core according to claim 1, wherein

[13] a vehicle wheel body;

In a vehicle hoisting mechanism, comprising: a supporting core body that is attached to a rim of the vehicle wheel body and is configured to move by force toward an inner wall of a tire mounted on the vehicle wheel body;

The supporting core body is housed in a range not exceeding the height of the rim until the tire is mounted on the vehicle wheel body. After the tire is mounted on the vehicle wheel main body, until the vehicle wheel main body reaches the predetermined rotational speed or until the position where the inner wall force of the tire contacts the predetermined interval until the vehicle wheel main body reaches the predetermined rotation speed. Moved and fixed

A vehicle wheel characterized by that.

[14] The support core body is made immovable until the tire is mounted on the vehicle wheel body.

The vehicle wheel according to claim 13.

[15] Before the air chamber formed between the vehicle wheel body and the tire is filled with air, the support core body is made immovable, and the air chamber is filled with air. Provided with a control unit that can move the support core body

The vehicle wheel according to claim 13.

[16] When the vehicle wheel body is in the first state, the support core body is made immovable, and the vehicle wheel body is brought into the first state force and the second state, whereby the support core body is Equipped with a control unit that can move the body

The vehicle wheel according to claim 13.

[17] The support core body moves toward the inner wall of the tire by a centrifugal force generated by the rotation of the vehicle wheel body.

The vehicle wheel according to claim 13.

[18] The supporting core body moves toward the inner wall of the tire by its own weight due to its own weight.

The vehicle wheel according to claim 13.

[19] The supporting core body moves toward the inner wall of the tire by a repulsive force.

The vehicle wheel according to claim 13.

[20] The support core main body moves by force toward the inner wall of the tire by the pressure in the air chamber formed between the vehicle wheel main body and the tire.

The vehicle wheel according to claim 13.

[21] The supporting core main body moves toward the inner wall of the tire by the wind pressure of the air filled in the air chamber formed between the vehicle wheel main body and the tire.

The vehicle wheel according to claim 13.

[22] The support core body moves toward the inner wall of the tire when energized.

The vehicle wheel according to claim 13.

[23] The support core body is fixed by moving from the inner wall of the tire to a position maintaining a predetermined distance, and the fixed support core body receives an impact exceeding a predetermined force from the inner wall of the tire. When it is received, the lock is released, and it moves further toward the inner wall of the tire and is fixed.

The vehicle wheel according to claim 13.

[24] The support core body is fixed by moving from the tire inner wall to a position maintaining a predetermined distance, and the fixed support core body is formed between the vehicle wheel body and the tire. When the pressure in the air chamber becomes lower than the predetermined value, the fixation is released, and it moves further toward the inner wall of the tire and is fixed.

The vehicle wheel according to claim 13.