WO2007116489A1

WO2007116489A1 - Support core and wheel for vehicle

Info

Publication number: WO2007116489A1
Application number: PCT/JP2006/306898
Authority: WO
Inventors: Fusayoshi Fukunaga; Yasuto Fukunaga
Original assignee: Fukunaga Office Co., Ltd.
Priority date: 2006-03-31
Filing date: 2006-03-31
Publication date: 2007-10-18
Also published as: WO2007116534A1; JPWO2007116534A1

Abstract

A support core easily installable and suppressing damage to a tire by quickly supporting a flat tire so that the vehicle can be run since it is operated before the tire blows out and a wheel for a vehicle are provided. The support core (1) comprises bar-like arm parts (3). One end of each arm part (3) is connected to the rim (7) of the wheel (5) with a fastener (4), and the arm part (3) is tilted. The wheel (5) comprises a wheel disk (6) fixed to the vehicle and the rim (7) forming an air chamber between itself and the tire (8). The support core (1) comprises support parts (2) fitted to the other ends of the arm parts (3) and coiled springs (10) covering the entire arm parts (3). By the centrifugal force caused by the rotation of the rim (7), each arm part (3) is rotated around one end of the arm part (3) and raised, and the support parts (2) are moved to the tread part inner wall of the tire (8). The arm parts (3) are locked with fixing members in a radially expanded state.

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 tires even when the tire of the vehicle is punctured and run flat.

Background art

[0002] A possible run-flat pneumatic tire, that is, even if the tire pressure to punk to OkgZcm ^2, a variety of technology related to a certain degree of distance that can travel with confidence the tire (run-flat tires) For example, Patent Document 1 discloses that a rigid support core is mounted on a rim facing an air chamber (cavity) of a pneumatic rim assembled with a rim, and the puncture is performed by the support core. It describes what made it possible to run flat by supporting the tire.

[0003] That is, Patent Document 1 describes a pneumatic tire 101 to which a support core 110 is applied, and the tire body 102 is supported by a rim 103 fitted to a tire bead portion 102A. The annular support core 110 inserted into the interior 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 joined to the annular fastening ring 115. Fig. 9 shows a cross-sectional view of a pneumatic tire using a conventional support core.

[0004] However, such a support core suppresses the height of the support core in consideration of the gap force between the tire bead portion and the rim being inserted into the tire. The distance between the top facing the inner wall of the tire and the inner wall of the tire tread will be longer, so the tire will be damaged if you travel for a long distance in a puncture state, and the driving operation and distance will be greatly limited. Was added.

Therefore, in Patent Document 2, a plurality of fixed seats are provided on the outer peripheral surface of the rim, a support frame that can be activated on the fixed seat is installed, and a block body is combined at the end of the support frame. The support frame is connected to the outer surface of the rim by the control unit, while the tire pan is At the time of tying, the control unit opens the support frame, and immediately extends the support frame outwardly from the outer peripheral surface of the rim to extend the tire so that the tire can not be controlled is described.

[0006] Patent Document 1: JP 2001-239814 A

Patent Document 2: Patent No. 3424041

Disclosure of the invention

Problems to be solved by the invention

[0007] However, the device described in Patent Document 2 operates only while traveling, and is not subject to centrifugal force during parking, traffic jams, or low-speed traveling under the circumstances. Since the function did not work, the effect could not be fully achieved.

[0008] The present invention can improve the above-mentioned problems and is easy to install, and the puncture force support core operates, so that the tire is quickly supported at the time of puncture and the damage of the tire is suppressed. It is an object of the present invention to provide a support core and a vehicle wheel that enable the vehicle to run.

Means for solving the problem

[0009] In order to achieve the above object, the support core of claim 1 has a wheel disc fixed to the vehicle and a rim provided on the outer peripheral side of the wheel disc, and the rim One end of the support core attached to the rim of the vehicle wheel that forms an air chamber between the tire and the tire having a tread portion, a shoulder portion, and a sidewall portion attached to the rim. And the other end moves toward the inner wall of the tread portion of the tire by the rotation of the rim, and is fixed to a predetermined position when the other end moves, and the other end is fixed to the tread of the tire. The position where the inner wall is in contact with the inner wall or the inner wall force of the tread is a position that maintains a predetermined interval.

[0010] Here, one end is attached to the rim, and the other end is moved toward the inner wall of the tread portion of the tire by the rotation of the rim, and fixed to a predetermined position when the other end moves without requiring a special operation. Therefore, regardless of whether the tire is punctured or not, the member necessary for supporting the tire can be projected toward the inner wall surface of the tread portion of the tire by the centrifugal force generated by the rotation of the rim as the vehicle travels. No special operation is required at the time of installation At the same time, once the vehicle has traveled, it can be prepared for punctures under any circumstances (parking, low-speed traveling in traffic jams, etc.). Here, the “predetermined interval” refers to an interval at which an impact from the inner wall of the tread portion can be detected at an early stage due to a decrease in tire internal pressure and can be reacted quickly.

[0011] Further, the support core according to claim 2 is the support core according to claim 1, wherein the other end is moved toward the inner wall of the tread portion of the tire and fixed at a predetermined position by the rotation of the rim. The predetermined position is a position that maintains a predetermined distance from the inner wall of the tread portion of the tire, and the fixed support core applies a predetermined force from the inner wall of the tread portion of the tire at the predetermined position. When the impact is exceeded, the fixing is released, the other end is further moved toward the inner wall of the tread portion of the tire by the rotation of the rim, and the other end is fixed at a position where the other end contacts the inner wall of the tread portion of the tire. Therefore, even if the tire internal pressure decreases due to puncture or the like, the tire can travel for a long time without being damaged by the impact from the ground or the weight of the vehicle. Here, the “predetermined force” means at least a force that can release the fixation.

[0012] Further, the supporting core of claim 3 is the supporting core of claim 1, wherein the other end moves toward the inner wall of the tread portion of the tire and is fixed at a predetermined position by the rotation of the rim. The predetermined position is a position that maintains a predetermined distance from the inner wall of the tread portion of the tire, and the fixed support core applies a predetermined force from the inner wall of the tread portion of the tire at the predetermined position. When the impact is exceeded, the fixing is released, the other end is further moved toward the inner wall of the tread portion of the tire by the elastic member, and the other end is fixed at a position in contact with the inner wall of the tread portion of the tire. Due to the characteristics, the tire's internal pressure drops due to punctures, etc., and even if the ground force is impacted, the tire can be supported quickly. Here, the “predetermined force” means at least a force that can release the fixation.

[0013] Further, the support core according to claim 4 is the support core according to claim 1, claim 2 or claim 3, and a member having elasticity is attached to the other end. It can moderate the impact of powerful objects.

[0014] In order to achieve the above object, the vehicle wheel according to claim 5 includes a wheel disc fixed to the vehicle, and a rim provided on an outer peripheral side of the wheel disc. In a vehicle wheel that forms an air chamber between a tire and a tire having a tread portion, a shoulder portion, and a sidewall portion attached to the rim, one end is attached to the rim and the other end is attached to the rim. A plurality of supporting cores that are fixed to a predetermined position when the other end moves are provided in addition to the movement toward the inner wall of the tread portion of the tire by rotation. A position in contact with the inner wall of the tread portion or an inner wall force of the tread portion is a position that maintains a predetermined interval.

[0015] Here, one end is attached to the rim, the other end is moved toward the inner wall of the tread portion of the tire by rotation of the rim, and is fixed at a predetermined position when the other end is moved without requiring a special operation. The multiple support cores allow the members necessary to support the tire to protrude toward the inner wall surface of the tread portion of the tire due to the centrifugal force generated by the rotation of the rim as the vehicle travels, regardless of whether the tire is punctured. In addition, there is no need to perform any special operations when the tires are installed, and once the vehicle has traveled, it can be prepared for puncture under any circumstances (parking, low-speed traveling in traffic, etc.). Here, the “predetermined interval” is an interval at which the impact of the inner wall force of the tread portion can be detected at an early stage due to a decrease in the tire internal pressure and can be reacted quickly.

[0016] Further, in the vehicle wheel according to claim 6, in the vehicle wheel according to claim 5, the predetermined position of the support core is such that the other end maintains a predetermined distance from the inner wall of the tread portion of the tire. The supporting core is fixed at the predetermined position, and the other end is provided with a simple fixing member that releases the fixing when receiving an impact exceeding the predetermined force on the inner wall force of the tread portion of the tire. When the fixing by the simple fixing member is released, the other end moves further toward the inner wall of the tread portion of the tire by the rotation of the rim, and the other end is fixed at a position where the other end contacts the inner wall of the tread portion of the tire. As a result, the tire's internal pressure drops due to punctures, etc., and the tire can be supported quickly even when subjected to a ground force impact. Here, the “predetermined force” means at least a force that can release the fixation.

[0017] Further, in the vehicle wheel according to claim 7, in the vehicle wheel according to claim 5, the predetermined position of the support core is such that the other end maintains a predetermined distance from the inner wall of the tread portion of the tire. The supporting core is fixed at the predetermined position, and the other end is a simple fixing that releases the fixing when the inner wall force of the tread portion of the tire receives an impact exceeding a predetermined force. When the fixing by the simple fixing member is released, the other end is further moved toward the inner wall of the tread portion of the tire by the elastic member, and the other end is the tread portion of the tire. Since it is fixed at the position that contacts the inner wall, the tire's internal pressure drops due to punctures, etc., and the tire can be supported quickly even when the ground force is impacted. Here, the “predetermined force” means at least a force that can release the fixation.

[0018] Further, the vehicle wheel of claim 8 is the vehicle wheel of claim 5, claim 6 or claim 7, wherein the support core increases the height of the rim when attached to the rim. Because it is located within the range that does not exceed, it is easy to handle because there is no protrusion from the rim when wearing tires. Here, “the height of the rim” refers to the distance from the bottom of the rim to the top of the side walls of the rim facing each other.

[0019] Further, the vehicle wheel according to claim 9 is the vehicle wheel according to claim 5, claim 6 or claim 7, wherein an elastic member is used for at least a part of the support core to mitigate external impact. The

[0020] Further, in order to achieve the above object, the support core according to claim 10 includes a wheel disc fixed to the vehicle, and a rim provided with mutually opposing side walls provided on the outer peripheral side of the wheel disc. One end is attached to the side wall of the rim of the vehicle wheel forming an air chamber between the rim and a tire having a tread portion, a shoulder portion, and a side wall portion attached to the rim. The support core has a shape that matches at least the shape of the inner wall of the sidewall of the tire among the inner wall of the tire tread, the inner wall of a portion of the shoulder, and the inner wall of the sidewall, and the tire is rotated by the rotation of the rim. One end is moved toward the inner wall of the side wall of the tire, and a position or side wall that contacts the inner wall of the tire side wall after the movement is moved. Characterized in that it is fixed in a position that holds the Le inner wall force predetermined intervals.

[0021] Here, the supporting core has a shape that matches at least the shape of the inner wall of the tire sidewall among the inner wall of the tire tread, the inner wall of the shoulder, and the inner wall of the sidewall. The reinforcement part can be reinforced and the reinforcement part can be expanded from the shoulder part to the tread part according to the material, structure and application of the tire.

Also, the support core is rotated toward the inner wall of the tire sidewall by rotation of the rim. Is fixed at a position where it touches the inner wall of the sidewall of the tire after movement or a position where the inner wall force of the sidewall is maintained at a predetermined distance. As a result of the centrifugal force generated by the rotation of the rim, the members necessary to support the tire can be raised at least toward the inner wall surface of the tire sidewall, and there is no need to perform any special operation at the time of tire mounting. Once the vehicle has traveled, it can be prepared for puncture in any situation (parking, low-speed traveling in traffic, etc.). Here, the “predetermined interval” refers to an interval at which an impact from the inner wall of the tire sidewall can be detected at an early stage and can be quickly reacted due to a decrease in the tire internal pressure.

[0022] Further, the support core according to claim 11 is the support core according to claim 10, wherein one end is moved toward the inner wall of the sidewall portion of the tire by rotation of the rim, and after the movement, The support core fixed at a position that maintains a predetermined distance from the inner wall of the sidewall portion of the tire is fixed to the inner wall of the tread portion, the shoulder portion, or the sidewall portion of the tire at the predetermined position. When an impact exceeding a predetermined force is received from any of the above, the fixing is released, and the rim rotates further toward the inner wall of the sidewall portion of the tire to contact the inner wall of the sidewall portion of the tire. Since the tire is fixed at a position where it is fixed, the tire's internal pressure drops due to puncture and the like, and the tire can be supported quickly even if it receives an impact from the ground. Here, the “predetermined force” means at least a force that can release the fixation.

[0023] Further, the support core according to claim 12 is the support core according to claim 10, wherein one end is moved toward the inner wall of the sidewall portion of the tire by rotation of the rim, and after the movement, The support core fixed at a position that maintains a predetermined distance from the inner wall of the sidewall portion of the tire is fixed to the inner wall of the tread portion, the shoulder portion, or the sidewall portion of the tire at the predetermined position. When an impact exceeding a predetermined force is received from any one of the above, the fixing is released, and the elastic member moves further toward one end toward the inner wall of the sidewall of the tire and contacts the inner wall of the tire It is characterized by being fixed by a puncture, so the tire's internal pressure drops due to punctures, etc., and the tire can be supported quickly even when subjected to ground force impact. Note that the “predetermined force” here means at least unfixed It means as much power as possible.

[0024] Further, the support core of claim 13 is the support core of claim 10, claim 11 or claim 12, to which the elastic member is attached, so that the impact from the road surface is mitigated. be able to.

[0025] In order to achieve the above object, the vehicle wheel according to claim 14 includes a wheel disk fixed to the vehicle and side walls provided on the outer peripheral side of the wheel disk and facing each other. In a vehicle wheel having a rim and forming an air chamber between the rim and a tire having a tread portion, a shoulder portion, and a sidewall portion attached to the rim, an inner wall of the tread portion of the tire A plurality of support cores having a shape that matches at least the shape of the inner wall of the sidewall of the tire among the inner wall of the shoulder part and the side wall part, and one end of the support core is attached to the side wall of the rim, The support core is moved around one end toward the inner wall of the sidewall portion of the tire by the rotation of the rim, and after the movement, the sidewall of the tire is moved. Characterized in that it is secured in a position to hold the position or the side wall portion inner wall force predetermined distance in contact with the inner wall.

[0026] Here, since the supporting core has a shape that matches at least the shape of the inner wall of the tire sidewall among the inner wall of the tread portion, the inner wall of the shoulder portion, and the inner wall of the sidewall portion, the sidewall of the tire The reinforcement part can be reinforced and the reinforcement part can be expanded from the shoulder part to the tread part according to the material, structure and application of the tire.

Also, one end of the support core is attached to the side wall of the rim, and by rotation of the rim, the one end moves toward the inner wall of the tire side wall, and the position or side that contacts the inner wall of the side wall of the tire after movement. By fixing to a position that maintains a predetermined distance from the inner wall of the wall part, at least the members necessary for supporting the tire by the centrifugal force due to the rotation of the rim accompanying the running of the vehicle, regardless of whether the tire is punctured or not As the vehicle can stand up to the inner wall of the side wall of the vehicle, there is no need to perform any special operations at the time of wearing the tire, and once the vehicle has traveled, under what circumstances (low speed driving during parking or traffic jams) It is possible to prepare for punctures at times. Here, the “predetermined interval” refers to an interval at which an impact caused by the inner wall force of the tire can be detected at an early stage due to a decrease in the tire internal pressure and can be reacted quickly. [0027] Further, in the vehicle wheel according to claim 15, in the vehicle wheel according to claim 14, the predetermined position of the support core is a position that maintains a predetermined interval between inner wall forces of the tires. The supporting core fixed at the predetermined position is released when an impact exceeding a predetermined force is applied to the tire inner wall, shoulder inner wall or sidewall inner wall from the tire. A simple fixing member is provided, and when the fixing by the simple fixing member is released, the support core is further moved around one end toward the inner wall of the sidewall portion of the tire by the rotation of the rim, and the support Since the core is fixed at the position where it touches the inner wall of the tire side wall, the tire's internal pressure drops due to puncture, etc., and the tire can be supported quickly even when subjected to a ground force impact. Here, the “predetermined force” means at least a force that can release the fixation.

[0028] Further, in the vehicle wheel according to claim 16, in the vehicle wheel according to claim 14, the predetermined position of the support core is a position that maintains an inner wall force of the tire at a predetermined interval. The supporting core fixed at the predetermined position is released when an impact exceeding a predetermined force is applied to the tire inner wall, shoulder inner wall or sidewall inner wall from the tire. A simple fixing member is provided, and when the fixing by the simple fixing member is released, the supporting core is further moved by the elastic member toward the inner wall of the tire sidewall toward the inner wall of the tire, and is being supported. Since the child is fixed at a position where it comes into contact with the inner wall of the side wall of the tire, the internal pressure of the tire is reduced due to puncture or the like, and the tire can be supported quickly even when the ground force is impacted. Here, the “predetermined force” means a force that can at least release the fixation.

The invention's effect

[0029] Since the supporting core according to the present invention operates with centrifugal force without requiring any special operation and always maintains the posture to prepare for puncture, the tire is quickly supported at the time of puncture and the tire is damaged. It can be made to run while being suppressed.

In the vehicle wheel according to the present invention, since the supporting core is accommodated in the rim top part, it is very easy to install and remove the tire. Brief Description of Drawings

[0030] [FIG. 1] The support core of the vehicle wheel to which the present invention is applied, in which the tire is mounted, is tilted down. It is a schematic sectional drawing which shows an example of the state (a) and the state (b) which stood up.

FIG. 2 is a schematic partial cross-sectional view (a) showing an example of a state in which the support core of the first embodiment to which the present invention is applied is raised by centrifugal force and further stretched due to the impact of the inner wall force of the tire tread. FIG. 3B is a schematic diagram (b) showing an example of a fixing member that fixes the supporting core of the first embodiment.

FIG. 3 is a schematic partial sectional view showing an example of a state in which the supporting core according to the second embodiment to which the present invention is applied is extended by centrifugal force.

FIG. 4 is a schematic view showing an example of a state in which the supporting core of the third embodiment to which the present invention is applied rises due to centrifugal force.

FIG. 5 is a schematic view showing an example of a state where the support core of the fourth embodiment to which the present invention is applied rises due to centrifugal force.

FIG. 6 is a schematic view showing an example of a state where the supporting core of the fifth embodiment to which the present invention is applied rises due to centrifugal force.

FIG. 7 is an enlarged schematic view showing an example of a state in which the support core of the fifth embodiment to which the present invention is applied is fixed.

FIG. 8 is an enlarged schematic view showing an example of a state in which the support core in the state shown in FIG. 7 is pushed upward further by the push-up member.

FIG. 9 is a cross-sectional view of a pneumatic tire to which a conventional support core is applied.

Explanation of symbols

1 Supporting core

2 Support part

2A Pressing part

2B base

3 Arm

3A support pipe

3B Medium support rod

3C Tip support rod

3D convex part

4 Fastener Vehicle wheel Hoiinore disc rim

Tires

Leaf spring type fixing member A Protruding member

B leaf spring

= 3 Gil Spring A = 3 Gil Spring

Hook type fixing member Leaf spring

A Inner leaf spring

Mounting part

Nipping type fixing member Magnet

1st body 2nd body 3rd body 1st base part 2nd base part Connecting member Projection part

Leg

Frame member

Reinforcing member Base

Base

Support plate 29A rubber material

30 Two-stage fixing member

31 Rotating shaft

31A Rotating shaft

31B Rotating shaft

32 Hook type mounting part

33 Hook type pressing part

34 Lid member

35 Lever member

36 Push-up member

36A depression

37 pedestal

BEST MODE FOR CARRYING OUT THE INVENTION

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 cross-sectional view showing an example of a state (a) and a state (b) in which a support core of a vehicle wheel to which the present invention is applied is tilted and is raised. As shown in FIG. 1 (a), the support core 1 is provided with a rod-shaped arm portion 3. One end of the arm portion 3 is attached to a rim 7 of a vehicle wheel 5 by a fastener 4. It is attached and arm part 3 is tilted down. Further, the vehicle wheel 5 includes a wheel disc 6 fixed to the vehicle and a rim 7 that is provided on the outer peripheral side of the wheel disc 6 and forms an air chamber between the tire 8 attached thereto. . The support core 1 includes a support portion 2 attached to the other end of the arm portion 3. Further, the support core 1 includes a coil spring 10 that covers the entire arm portion 3 to mitigate the impact from the outside.

Here, the support portion 2 includes a pressing portion 2A that presses and supports the inner wall of the tread portion of the tire 8 and also a base member 2B that is an iron plate material that supports the pressing portion 2A with a lower force. Become. Further, the support core 1 in a state where the arm portion 3 is tilted is located within a range not exceeding the height of the rim 7 and is attached to the rim 7 by the centrifugal force due to the rotation of the rim 7. The arm portion 3 rotates and rises around one end of the tire portion 3, and the support portion 2 moves toward the inner wall of the tread portion of the tire 8. Then, the plurality of arm portions 3 are fixed by a fixing member (not shown) in a state of spreading radially (see FIG. 1 (b);). At this time, the support portion 2 contacts the inner wall of the tread portion of the tire 8 and supports the inner wall.

[0033] Here, the force in which the rod-shaped arm portion 3 is used for the support core 1 is not necessarily a rod-like shape as long as it moves toward the inner wall of the tread portion of the tire 8 by centrifugal force. For example, a plate-like member, a box-like member, or an elastic member such as a coil spring may be used. Further, if the inner wall of the tread portion of the tire 8 is pressed and supported, the pressing portion 2A is not necessarily formed of a rubber member. For example, the pressing portion 2A includes an air layer inside. May be. Further, if the support core 1 moves toward the inner wall of the tread portion of the tire 8 by centrifugal force, the coil spring 10 that covers the arm portion 3 is not necessarily provided.

FIG. 2 is a schematic partial cross-sectional view showing an example of a state in which the supporting core according to the first embodiment to which the present invention is applied rises due to centrifugal force, and further extends due to the impact of the inner wall force of the tread portion of the tire (a ) And a schematic diagram (b) showing an example of a fixing member for fixing the supporting core of the first aspect. In FIG. 2, the rod-shaped arm portion 3 of the support core 1 includes a support pipe 3A in which a hollow portion is formed, a coil spring 10 attached to the end, and a distal force and a coil spring due to the rotation of the rim 7. The middle support bar 3B that moves toward the inner wall of the tire 8 tread part (toward the radial outside of the rim 7) in the hollow part of the support pipe 3A by the urging force of 10 is located at the tip of the middle support bar 3B. A convex part 3D to which a leaf spring 12 is attached is provided on the surface, and a hook-type fixing member 11 (an example of a simple fixing member) is applied to the convex part 3D to apply an urging force to the plate spring 12. It is composed of a tip support bar 3C that gives A support portion 2 including a pressing portion 2A and a base portion 2B is attached to the tip of the tip support rod 3C.

Further, one end of the arm part 3 is attached to the rim 7 by the attachment part 13, and the arm part 3 rising by the centrifugal force due to the rotation of the rim 7 is fixed by the sandwiching fixing member 14 included in the attachment part 13, Prevent part 3 from falling over!

Further, a leaf spring type fixing member 9 having a protruding member 9A is attached to the side surface of the support pipe 3A. Here, the support core 1 is attached to the rim 7 and the arm 3 is In a state where it stands up by force (a state before the support portion 2 receives an impact from the ground), the protruding member 9A abuts against the middle support rod 3B and is pushed outward.

[0035] Then, when the internal pressure of the tire 8 decreases due to puncture or the like, the inner wall force of the tread portion of the tire 8 via the tire 8 is pressed by the ground force impact by being pressed at a position approximately 3 cm away. When the leaf spring 12 of the tip support rod 3C is bent by the force at that time, the hook-type fixing member 11 is pushed by the plate spring 12 to release the convex portion 3D force, and is attached to the side surface of the support pipe 3A. The magnet 15 is fixed to the side surface of the support pipe 3A. The support portion 2 together with the tip support rod 3C whose hook-type fixing member 11 has been released presses the inner wall of the tread portion of the tire 8 by centrifugal force or the force of the plate spring 12 to support the inner wall of the tread portion of the tire 8. At this time, the intermediate support rod 3B moves toward the inner wall of the tread portion of the tire 8 due to the centrifugal force generated by the rotation of the rim 7 and the biasing force generated by the coil spring 10, and the protruding member 9A is not pushed outward by the intermediate support rod 3B. Then, the projecting member 9A enters the cavity of the support pipe 3A by the urging force of the leaf spring 9B, and the projecting member 9A supports the middle support bar 3B so that the middle support bar 3B does not return.

Here, it is not necessary to use a leaf spring or a coil spring as long as it is a force spring using the leaf spring 12 or the coil spring 10.

FIG. 3 is a schematic partial cross-sectional view showing an example of a state in which the supporting core of the second embodiment to which the present invention is applied is extended by centrifugal force. Here, Fig. 3 (a) shows the state before the rim rotates, Fig. 3 (b) shows the state where the support core 1 is extended by centrifugal force, and Fig. 3 (c) shows the state where the support part 2 is extended. This shows the state where the support core 1 is further extended by being pressed from the tire 8!

In FIG. 3, the support core 1 includes a box-shaped first main body 16 having a hollow portion formed therein, and a hollow portion of the first main body 16 within the tread portion of the tire 8 by centrifugal force due to rotation of the rim 7. A box-shaped second main body 17 that moves toward the wall (toward the rim 7 radially outward) and has a cavity formed therein, a coil spring 10 is attached to the bottom, and a support is provided at the tip. 2 and a third body 18 accommodated in the cavity of the second body 17, and a hook type that extends from the support 2 and hangs on a recess formed in the side wall of the second body 17. A biasing force is applied to the coil spring 10 of the third main body 18 by the fixing member 11.

Further, a leaf spring type fixing member 9 is provided on each side wall of the first main body 16 and the second main body 17. 2 and the second main body 17 and the third main body 18 are moved toward the inner wall of the tread portion of the tire 8 by centrifugal force, etc. The main body 17 and the third main body 18 are supported, and the second main body 17 and the third main body 18 are fixed so as not to return.

In addition, as shown in FIG. 3 (b), even if the second main body 17 is moved and fixed toward the inner wall of the tread portion of the tire 8 by centrifugal force or the like, the support portion 2 has almost the same inner wall force of the tread portion of the tire 8. It is about 3cm away. In this case, when the internal pressure of the tire 8 decreases due to puncture or the like, the support portion 2 is pressed by the ground force impact through the tire 8, and the depression formed on the side wall of the second main body 17 by the force at that time. The hook-type fixing member 11 is detached from the third body 18 from which the hook-type fixing member 11 is released, and the inner wall of the tread portion of the tire 8 is pressed by the centrifugal force or the force of the coil spring 10 to Support the internal wall.

FIG. 4 is a schematic diagram showing an example of a state in which the supporting core of the third aspect to which the present invention is applied rises due to centrifugal force. Fig. 4 (a) shows the state before the rim 7 rotates, Fig. 4 (b) shows the state where the support core 1 is raised by the centrifugal force, and Fig. 4 (c) shows whether the support part 2 is the tire 8 or not. And the support core 1 is further lifted. In FIG. 4, the supporting core 1 is joined to the first base part 20 attached to the rim 7, and located above the first base part 20 and movably joined by the first base part 20 and the connecting member 22. The second base portion 21 and the arm portion 3 having one end attached to the upper portion of the second base portion 21 and fixed by the hook-type fixing member 11 and applied with an urging force by a spring. And a support portion 2 attached to the other end of the arm portion 3. In addition, one end of a leg portion 24 is joined to the connecting member 22, and a projection 23 having a surface substantially perpendicular to the slope is formed on the first base portion 20.

Here, when the rim 7 rotates, the connecting member 22 rises due to centrifugal force, and the second base portion 21 also rises and is pulled by the connecting member 22 so that the other end of the leg portion 24 extends along the slope of the projection 23. When it moves and reaches a substantially vertical plane, the second platform 21 is fixed.

[0038] Even in the state where the second base portion 21 stands and is fixed, the support portion 2 is at a position approximately 3 cm away from the inner wall force of the tire portion of the tire 8. In this case, when the internal pressure of the tire 8 decreases due to a knock or the like, the support portion 2 receives a ground force impact through the tire 8 and is pressed. Then, the hook-type fixing member 11 is released by the force at that time, and the arm part 3 released from the fixing by the hook-type fixing member 11 is raised by the force of centrifugal force or spring (not shown), and the fixing member (FIG. (Not shown) and the support portion 2 is pressed against the inner wall of the tread portion of the tire 8 and supported.

FIG. 5 is a schematic diagram showing an example of a state in which the support core according to the fourth embodiment to which the present invention is applied rises due to centrifugal force. Fig. 5 (a) shows the state before the rim 7 rotates, and Fig. 5 (b) shows the state where the support core 1 is raised by the distal force. In FIG. 5, the support core 1 is attached to the rim 7 and includes a base portion 28 having a protrusion 23 in a substantially central region, frame members 25 erected on both sides of the base portion 28, and the frame members 25. The base part 27 positioned above the base part 28, the arm part 3 with one end attached to the base part 27 and the support part 2 attached to the other end, and the base part 27 moved upward The two reinforcing members 26 that reinforce the pedestal portion 27 while standing up with each other, and the sandwich-type fixing member 14 that fixes the pedestal portion 27 and that is installed at the upper end of the frame member 25, and the arm A hook-type fixing member 11 that fixes the portion 3 and applies an urging force by a spring to the arm portion 3 is provided.

Here, when the rim 7 rotates, the base part 27 moves upward (toward the inner wall of the tread part of the tire 8) due to centrifugal force and moves along the frame member 25, and is fixed by the clamping type fixing member 14, while the base part 27 As the portion 27 moves upward, the reinforcing member 26 rises while facing each other, sandwiching the projection 23, and joined to each other by a magnet (not shown) attached to the reinforcing member 26. The base 27 is reinforced by being substantially perpendicular to the base 28.

Even when the base 27 is moved upward and is fixed by the clamping type fixing member 14, the inner wall force of the tread portion of the tire 8 is approximately 3 cm away from the support portion 2. In this case, when the internal pressure of the tire 8 decreases due to puncture or the like, the support portion 2 receives an impact from the ground and is pressed through the tire 8, and the hook-type fixing member 11 is released by the force at that time, and the hook-type fixing member 11 is released by the force of centrifugal force or spring (not shown), and is fixed by a fixing member (not shown), and the support portion 2 is attached to the inner wall of the tread portion of the tire 8. Press to support.

[0040] FIG. 6 is a schematic diagram showing an example of a state in which the support core of the fifth embodiment to which the present invention is applied rises due to centrifugal force. In Fig. 6 (a), the support plate 29 is raised by centrifugal force due to the rotation of the rim 7. FIG. 6 (b) shows the arrangement state of the support plate 29 before the rim 7 rotates. In FIG. 6, the support core is a support plate 29 having a shape that matches the shape of the inner wall of the sidewall of the tire 8, the inner wall of the shoulder, and the inner wall of the tread of the tire 8, one end of which is the rim 7. It is attached to the side wall in alternate directions (see Fig. 6 (b);). Due to the centrifugal force generated by the rotation of the rim 7, the support plate 29 rises and moves toward the inner wall of the sidewall portion of the tire 8. The support plate 29 is sandwiched and fixed in the clamping type fixing member 14 attached to the side wall of the rim 7, and the side wall portion of the tire 8 (side surface of the tire 8 in the figure) The inner wall and shoulder portion (in the figure, The support plate 29 contacts these inner walls along the shape of the inner wall of the tire 8 curved portion) and the inner wall of the tread portion (the top of the tire 8 in the figure). The support plate 29 is provided with a rubber member 29A having high elasticity on the surface (see FIG. 6 (a)), and the rubber member 29A is directly attached to the inner wall of the side wall portion of the tire 8, the inner wall of the shoulder portion, and Contact the inner wall of the tread. Here, as long as the support plate 29 rises due to centrifugal force and moves toward the inner wall of the sidewall portion of the tire 8, the rubber member 29A is not necessarily provided. FIG. 7 is an enlarged schematic view showing an example of a state in which the support core of the fifth aspect to which the present invention is applied is fixed. Fig. 7 (a) shows a simple fixed state before the support plate 29 comes up due to centrifugal force and the support plate 29 comes into contact with the inner wall of the side wall of the tire. This shows a state where the simple fixing state is released due to an impact exceeding 1, and the support plate 29 is further raised (contacted with the inner wall of the side wall).

The support plate 29, one end of which is rotatably attached to the hook-type mounting portion 32 that also protrudes the side wall force of the rim 7 by the rotating shaft portion 31, is raised by the centrifugal force due to the rotation of the rim 7, and then the hook-type mounting portion 32. Is fixed by a leaf spring 12 on the outside of a two-stage fixing member 30 having a U-shape protruding above the side wall force of the rim 7. At this time, the support plate 29 is not in contact with any deviation of the inner wall of the tire side wall, the inner wall of the shoulder and the inner wall of the tire tread, and is attached to the horizontal part of the long side of the hook type mounting part 32. The protruding member 9A of the plate spring 9 is fixed so that the supporting plate 29 is pressed and not lowered. The tip of one end of the support plate 29 protrudes inside the hook-type mounting portion 32, and the hook-type pressing portion 33 that presses the tip of one end of the support plate 29 is attached to the side wall of the rim 7. The leaf spring 12 is rotatably attached by a rotating shaft portion 31A. Figure 7 (a) The hook-type pressing portion 33 is fixed by a hook-type fixing member 11 attached to the tip of the leaf spring 12, and the coil spring 10 attached to the hook-type pressing portion 33 is in a state of being given a biasing force. .

[0042] Further, the push-up member 36 that pushes up the tip of one end of the support plate 29 is opposed to the horizontal part of the long side of the hook-type mounting part 32 and penetrates the horizontal part of the short side of the hook-type mounting part 32 positioned below it. It is arranged in the state to do. Further, a cover member 34 that covers the upper end of the push-up member 36 is disposed on the surface of the horizontal portion of the short side of the hook-type mounting portion 32. In addition, a lever member 35 is rotatably attached to the surface perpendicular to the surface of the short side horizontal portion of the hook-type mounting portion 32 where the lid member 34 is disposed by the rotating shaft portion 31B. Are connected by a connecting member 22. A leaf spring 9 having a protruding member 9A is attached to the surface of the lever member 35. The protruding member 9A is fitted in a recess 36A formed in the push-up member 36.

Further, a coil spring 1OA is disposed between the lower end of the push-up member 36 and the pedestal 37 from which the side wall force of the rim 7 also protrudes, and is pressed by the lid member 34 to apply a biasing force ( (See Figure 7 (a).)

Next, when the internal pressure of the tire 8 decreases due to puncture or the like, the support plate 29 is pressed by the ground force impact through the tire 8, and the tip of one end of the support plate 29 is hooked by the force at that time. By pressing 33, the hook type fixing member 11 is fixed, and the hook type pressing part 33 rotates about the rotating shaft part 31A with the force of the coil spring 10 and presses the leading end of one end of the support plate 29. At the same time, the one end pressing portion of the lever member 35 is pushed. As a result, as shown in FIG. 7 (b), the support plate 29 enters the U-shaped two-stage fixing member 30 beyond the inner leaf spring 12A of the two-stage fixing member 30, and the support plate 29 One end force S The lever member is fixed with the support plate 29 standing straight, that is, with the support plate 29 in contact with the inner wall of the side wall portion, and the one end pressing portion of the pressed lever member 35 is lowered and the connecting member 22 is attached. The other end of 35 rises, pushes up the lid member 34 and opens.

FIG. 8 is an enlarged schematic view showing an example of a state in which the support core in the state shown in FIG. 7 is pushed upward further by the push-up member. In FIG. 8 (c), the cover member 34 is pushed up in FIG. 7 (b), and the push-up member 36, which is no longer pressed by the cover member 34, moves upward. FIG. 8 (d) shows a state where the support plate 29 is in contact with the inner wall of the tread portion and moved outward as much as possible.

The coil spring 10A applied with the urging force by the lid member 34 pushes the push-up member 36 upward when the lid member 34 is pushed up, and the push-up member 36 pushes the tip of one end of the support plate 29 upward. Here, since the force of the coil spring 10A that pushes up the push-up member 36 is larger than the pressing force of the leaf spring 9 attached to the long side horizontal portion of the hook-type attachment portion 32, the support plate 29 can be pushed up. Further, since the centrifugal force due to the rotation of the rim 7 is also larger than the pressing force of the leaf spring 9 attached to the horizontal part of the long side of the hook type attachment portion 32, the support plate 29 can move toward the inner wall of the tread portion by the centrifugal force.

When the support plate 29 reaches the inner wall of the tread portion, the push-up by the push-up member 36 stops. Further, the support plate 29 is prevented from lowering by being fitted into the recess 36A formed in the protruding member 9A force push-up member 36 of the plate spring 9 attached to the lever member 35. Here, the support plate 29 However, as long as the inner wall of the tread portion can be reached by the centrifugal force generated by the rotation of the rim 7, it is not always necessary to push up the support plate 29 using the push-up member 36.

[0044] Thus, the supporting core of claim 1 and the vehicle wheel of claim 5 have one end attached to the rim and the other end moving toward the inner wall of the tread portion of the tire by the rotation of the rim. When the other end moves without requiring any special operation, it is fixed in place, so that the tire is supported by the centrifugal force generated by the rotation of the rim as the vehicle travels, regardless of whether the tire is punctured or not. Can be projected toward the inner wall surface of the tread part of the tire, so it is very easy to install tires that do not require special operation at the time of tire installation. It is possible to prepare for punctures even under difficult conditions (parking, low-speed driving in traffic jams, etc.), and even when punctured, the tires can be supported quickly, and the tires can be run with reduced damage.

Therefore, even when driving on storms, nights, highways, and high-traffic roads where punctures do not require immediate puncture repairs, you can drive safely without worrying about punctures and use them until the tires wear out. .

[0045] Further, the support core of claim 2 and the vehicle wheel of claim 6 are the support core of claim 1. In the vehicle wheel according to claim 5, the predetermined position is a position that maintains a predetermined distance from the inner wall of the tread portion of the tire, and the fixed support core is an inner wall force of the tire tread portion at the predetermined position. When an impact exceeding a predetermined force is applied, the fixing is released, the other end is further moved toward the inner wall of the tread portion of the tire by the rotation of the rim, and the other end is fixed at a position where it contacts the inner wall of the tread portion of the tire. Therefore, when the tire is in a normal state where it is not punctured, the inner wall force of the tread part of the tire can be placed at a position slightly away from the other end of the support core.

(First stage) Even if the tire inner pressure drops due to puncture, etc., and the inner wall force of the tire tread is slightly separated, the other end can receive ground force impact, and the tire can be supported quickly (second stage). ).

[0046] Further, in the support core of claim 3 and the vehicle wheel of claim 7, the predetermined position of the support core of claim 1 and the vehicle wheel of claim 5 is from the inner wall of the tread portion of the tire. The fixed support core is a position that holds a predetermined interval. The inner wall force of the tread portion of the tire is fixed at a predetermined position, and is fixed when an impact exceeding a predetermined force is applied. It moves further toward the inner wall of the tread part of the tire and is fixed at a position where the other end contacts the inner wall of the tread part of the tire. The other end of the support core can be placed at a distance

[0047] Further, since the supporting core of the present invention is disposed within a range that does not exceed the height of the rim when attached to the rim, it is easy to handle without protrusion of the rim force when the tire is mounted.

[0048] Further, in the supporting core according to claim 10 and the vehicle wheel according to claim 14, the supporting core moves on one end toward the inner wall of the sidewall portion of the tire by rotation of the rim, and after the movement Since it is fixed at a position where it contacts the inner wall of the tire or the inner wall force of the sidewall is maintained at a predetermined distance, it is centrifuged by rotation of the rim as the vehicle runs regardless of whether the tire is punctured or not. The components necessary to support the tires can be lifted by force toward at least the inner wall of the sidewall of the tire, so it is extremely easy to install tires that require no special operation at the time of tire installation. But If you drive, you can prepare for puncture under any circumstances (parking, low speed driving in traffic jams, etc.), and even if punctured, you can support the tire quickly and drive with less damage to the tire To.

[0049] Further, the support core of claim 11 and the vehicle wheel of claim 15 are the same as the support core of claim 10 and the vehicle wheel of claim 14, but the tire side wall portion is formed by rotation of the rim. One end is moved to the shaft toward the inner wall, and after the movement, the tire is fixed to a position that maintains a predetermined distance from the inner wall of the sidewall portion of the tire. The fixed support core is fixed to the inner wall of the tire tread portion at a predetermined position. When an impact exceeding the specified force is applied from either the shoulder wall or the sidewall wall, the fixation is released, and the rim rotates further toward one side of the tire toward the sidewall of the tire. Since it is fixed at the position where it comes into contact with the inner wall of the wall, the internal pressure of the tire decreases due to puncture and the like, and the tire can be supported quickly even if it receives an impact from the ground.

[0050] Further, the support core of claim 12 and the vehicle wheel of claim 16 are the same as the support core of claim 10 and the vehicle wheel of claim 14, but the tire side wall portion is formed by rotation of the rim. One end is moved to the shaft toward the inner wall, and after the movement, the tire is fixed to a position that maintains a predetermined distance from the inner wall of the sidewall portion of the tire. The fixed support core is fixed to the inner wall of the tire tread portion at a predetermined position. When an impact exceeding a predetermined force is received from either the shoulder wall or the sidewall wall, the fixation is released, and the elastic member moves further toward the tire sidewall wall toward the inner wall of the tire. Since it is fixed at the position where it comes into contact with the inner wall, the tire's internal pressure drops due to puncture, etc., and the tire can be supported quickly even if it receives an impact from the ground.

Claims

The scope of the claims

[1] a wheel disc fixed to the vehicle;

A rim provided on the outer peripheral side of the wheel disc,

In the support core attached to the rim of the vehicle wheel that forms an air chamber between the rim and a tire having a tread portion, a shoulder portion, and a sidewall portion attached to the rim,

One end is attached to the rim, and the other end moves toward the inner wall of the tread portion of the tire by the rotation of the rim, and when the other end moves, the other end is fixed to a predetermined position. A position where the end contacts the inner wall of the tread portion of the tire or a position where a predetermined distance is maintained from the inner wall of the tread portion

Supporting core characterized by that.

[2] The support core according to claim 1, wherein the other end moves toward an inner wall of the tread portion of the tire by rotation of the rim and is fixed at a predetermined position. The predetermined position is the tread portion of the tire. Inner wall force is a position that maintains a predetermined interval,

The fixed support core is released when an impact exceeding a predetermined force is applied from the inner wall of the tread portion of the tire at the predetermined position, and the other end is rotated by the rim and the tread of the tire is It moves further toward the inner wall and is fixed at a position where the other end contacts the inner wall of the tread portion of the tire.

Supporting core characterized by that.

[3] The support core according to claim 1, wherein the other end moves toward an inner wall of the tread portion of the tire by rotation of the rim and is fixed at a predetermined position. The predetermined position is the tread portion of the tire. Inner wall force is a position that maintains a predetermined interval,

The fixed support core is released when an impact exceeding a predetermined force is applied from the inner wall of the tire tread at the predetermined position, and the other end is supported by an elastic member at the tread portion of the tire. It moves further toward the inner wall, and is fixed at a position where the other end contacts the inner wall of the tread portion of the tire.

Supporting core characterized by that.

[4] A member having elasticity is attached to the other end. The support core according to claim 1, claim 2, or claim 3.

[5] a wheel disc fixed to the vehicle;

A rim provided on the outer peripheral side of the wheel disc,

In a vehicle wheel that forms an air chamber between the rim and a tire having a tread portion, a shoulder portion, and a sidewall portion attached to the rim,

One end is attached to the rim, and the other end is moved toward the inner wall of the tread portion of the tire by the rotation of the rim, and includes a plurality of support cores fixed to a predetermined position when the other end moves. The predetermined position is a position where the other end is in contact with the inner wall of the tread portion of the tire or a position where the inner wall force of the tread portion is maintained at a predetermined interval.

A vehicle wheel characterized by that.

[6] The predetermined position of the support core is a position where the other end holds a predetermined distance from the inner wall of the tread portion of the tire.

The support core is fixed at the predetermined position, and includes a simple fixing member that releases the fixing when the other end receives an impact exceeding the predetermined force on the inner wall force of the tread portion of the tire. When the fixation is released, the other end is further moved toward the inner wall of the tread portion of the tire by the rotation of the rim, and the other end is fixed at a position where the other end contacts the inner wall of the tread portion of the tire.

The vehicle wheel according to claim 5.

[7] The predetermined position of the support core is a position where the other end holds a predetermined distance from the inner wall of the tread portion of the tire.

The support core is fixed at the predetermined position, and includes a simple fixing member that releases the fixing when the other end receives an impact exceeding the predetermined force on the inner wall force of the tread portion of the tire. When the fixing is released, the other end is further moved toward the inner wall of the tread portion of the tire by the elastic member, and the other end is fixed at a position where the other end contacts the inner wall of the tread portion of the tire.

The vehicle wheel according to claim 5.

[8] The support core is arranged within a range not exceeding the height of the rim when attached to the rim. The vehicle wheel according to claim 5, claim 6, or claim 7.

[9] An elastic member is used for at least a part of the supporting core to mitigate external impacts.

The vehicle wheel according to claim 5, claim 6, or claim 7.

[10] a wheel disc fixed to the vehicle;

A rim provided on the outer peripheral side of the wheel disc and having side walls facing each other;

Supporting with one end attached to the side wall of the rim of the vehicle wheel that forms an air chamber between the rim and a tire having a tread portion, a shoulder portion, and a sidewall portion attached to the rim. In the child

The inner wall of the tire has a shape that matches at least the shape of the inner wall of the sidewall of the tire among the inner wall of the tread, the shoulder, and the sidewall of the tire. One end of the tire is moved toward the shaft, and after that movement, the tire is fixed at a position where it contacts the inner wall of the side wall of the tire or a position that maintains a predetermined distance from the inner wall of the side wall.

Supporting core characterized by that.

[11] The supporting core according to claim 10, wherein the rim rotates to move one end toward an inner wall of the tire sidewall, and after the movement, a predetermined distance from the sidewall inner wall of the tire. Is fixed in position to hold

When the fixed supporting core receives an impact exceeding a predetermined force from any of the inner wall of the tire tread, the inner wall of the shoulder, or the inner wall of the sidewall at the predetermined position, the fixing is released. By rotating the rim, one end is further moved toward the inner wall of the sidewall portion of the tire, and fixed at a position where it contacts the inner wall of the tire sidewall.

Supporting core characterized by that.

[12] The supporting core according to claim 10, wherein the rotation of the rim causes one end to move toward the inner wall of the sidewall portion of the tire, and after the movement, a predetermined distance from the inner wall of the sidewall portion of the tire. Is fixed in position to hold

The fixed support core is fixed at the predetermined position at the inner wall of the tread portion of the tire. When an impact exceeding a predetermined force is received from any of the inner wall of the rudder or the inner wall of the side wall, the fixing is released, and the elastic member further moves one end toward the inner wall of the side wall of the tire. Fixed at the position where it touches the inner wall of the side wall

Supporting core characterized by that.

[13] a resilient member is attached

The supporting core according to claim 10, claim 11, or claim 12.

[14] a wheel disc fixed to the vehicle;

A plurality of supporting cores having a shape that matches at least the shape of the inner wall of the sidewall of the tire among the inner wall of the tire tread, the inner wall of the shoulder, and the inner wall of the sidewall;

One end of the support core is attached to the side wall of the rim, and the support core moves about the one end toward the inner wall of the sidewall portion of the tire by the rotation of the rim, and after the movement, the side of the tire A position that contacts the inner wall of the wall or an inner wall of the side wall.

A vehicle wheel characterized by that.

[15] The predetermined position of the support core refers to a position that maintains a predetermined interval of the inner wall force of the sidewall portion of the tire,

The supporting core fixed at the predetermined position is a simple fixing that releases the fixing when an impact exceeding a predetermined force is received from any of the inner wall of the tread portion of the tire, the inner wall of the shoulder portion, or the inner wall of the sidewall portion. When the fixing by the simple fixing member is released, the support core is further moved around one end toward the inner wall of the sidewall portion of the tire by the rotation of the rim, and the support The core is fixed at the position where it contacts the inner wall of the side wall of the tire. The vehicle wheel according to claim 14.

The predetermined position of the support core refers to a position that maintains a predetermined interval of the inner wall force of the sidewall portion of the tire,

The supporting core fixed at the predetermined position is a simple fixing that releases the fixing when an impact exceeding a predetermined force is received from any of the inner wall of the tread portion of the tire, the inner wall of the shoulder portion, or the inner wall of the sidewall portion. When the fixing by the simple fixing member is released, the support core is further moved by the elastic member toward the inner wall of the sidewall portion of the tire with one end as an axis, and the support core Is fixed at a position in contact with the inner wall of the sidewall portion of the tire.

The vehicle wheel according to claim 14.