KR101483366B1 - Apparatus for cotrolling characteristics of a tire and tire comprising the same - Google Patents

Abstract

The present invention relates to a device for controlling the characteristics of a tire and a tire including the same, which matches the performance of the tire with driving conditions by controlling the size and shape of a race separated from the tire, thereby enabling the stable and efficient operation of a vehicle. The device for controlling the characteristics of a tire according to the present invention comprises: a fixed first rim part; a moving second rim part; a steel wire fixing part; one or more first rim controllers; one or more second rim controllers; multiple first steel wires; multiple second steel wires; and an air rubber which maintains air tightness between the first and second rim parts.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a tire characteristic control apparatus and a tire including the tire characteristic control apparatus,

[0001] The present invention relates to a tire characteristic control apparatus and a tire including the same, and more particularly, to a more effective and stable vehicle operation by adjusting the shape of a tread of a tire and the arrangement and size of divided wheels, And a tire including the same.

As consumers increasingly prefer eco-friendly tires focusing on fuel economy and ultra-high-performance tires emphasizing driving power, the development of environmentally friendly, ultra high performance (UHP) tires is actively under way in tires. Eco-friendly tires are a tire that reduces fuel consumption by minimizing the rolling resistance of tires.

If the lateral area of the tire wheel is electronically controlled to control the tire's grounding area and the pressure inside the tire, it will be advantageous to reduce fuel consumption by improving running safety during turning or high-speed driving of the vehicle and minimizing rolling resistance.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a tread pattern which is capable of adjusting the shape of a ground area and a tread pattern in accordance with the running conditions of a vehicle from a wheel of an automobile tire, The grounding performance, and the fuel consumption performance of the tire, and a tire including the same. That is, it is an object of the present invention to provide a tire characteristic control device capable of adjusting the arrangement of blocks as well as adjusting the ground area of a tread by rotational movement of a wheel, and a tire including the same.

According to one aspect of the present invention,

A first rim portion fixed to a driving portion of the vehicle,

A movable second rim portion configured to overlap the first rim portion at an intermediate portion of the rim width and capable of moving in the width direction of the rim or rotating in the running direction of the tire;

A steel wire fixing portion formed on the first rim portion and opposite to the side where the tire is present;

At least one first rim controller installed on a disk attached to the second rim portion and controlling movement and rotation of the second rim portion;

At least one second rim controller spaced apart from the first rim controller on a disk attached to the second rim and operatively associated with the first rim controller to control movement and rotation of the second rim;

A first steel wire disposed at a plurality of locations along the circumferential direction of the tire between the steel wire fixing portion and the first rim controller;

A second steel wire disposed between the steel wire fixing portion and the second rim controller at a plurality of locations along a circumferential direction of the tire; And

And an airtight rubber that keeps the airtightness of the contact portion between the first rim portion and the second rim portion.

Another aspect of the present invention relates to a wheel provided with the tire characteristic control device.

Another aspect of the present invention relates to a tire having the tire wheel.

According to the tire characteristic control apparatus of the present invention, the tire ground plane and the block pattern can be adjusted through control of the divided wheels. The wheel mounted with such a tire characteristic control device can be linked with the information of the steering wheel mounted on the vehicle and the braking system to smartly adjust the shape of the tread pattern and the ground contact area of the tire in accordance with the running conditions of the vehicle. This makes it safer and more precise turning when cornering, and can be used to reduce the braking distance by adjusting the shape of the ground plane and pattern. Also, the rolling resistance can be minimized by adjusting the ground plane to realize environmentally friendly and ultra high performance tires.

1 is a schematic diagram of a configuration of a tire characteristic control apparatus according to an embodiment of the present invention.
2 is a schematic diagram for explaining the operation principle of a tire characteristic control apparatus according to an embodiment of the present invention.
3 is a schematic view for explaining the principle of tire tread pattern deformation using wheel adjustment in a tire characteristic control apparatus according to an embodiment of the present invention.
4 is a schematic view for explaining a difference in lateral force action due to arrangement and shape change of a tread pattern of a tire in a tire characteristic control apparatus according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram of a configuration of a tire characteristic control apparatus according to an embodiment of the present invention. 1, the apparatus according to the present invention includes a first rim 10, a second rim 20, a steel wire securing portion 30, a rim controller 50, a steel wire 60, And a rubber (70). The first rim portion 10 and the second rim portion 20 are connected in such a manner that the rim portion is divided into two portions with respect to a plane perpendicular to the rim width, and the respective ends of the rim portions are overlapped with each other at a central portion of the rim width. The automobile tire wheel according to the present invention may be, for example, an alloy wheel. 1, the rim controller includes a first rim controller 50 and a second rim controller 50 ', and the steel wire is connected to a first steel wire (60) and a second steel wire (60 ').

In the tire characteristic control apparatus of the present invention, the first rim controller 50 and the second rim controller 50 'may be installed in one or more positions in the circumferential direction of the tire in one or more positions. For example, the first rim controller 50 and the second rim controller 50 'may be installed at four positions at intervals of 90 degrees with respect to the circumferential direction of the tire. The first steel wire 60 and the second steel wire 60 'are installed at a plurality of locations in the circumferential direction of the tire.

Automotive tire wheels are typically divided into rim and disc portions, with the rim having flanges on both sides of the bead portion of the tire in order to position the tire on the wheel. The first rim portion 10 and the second rim portion 20 according to the present invention are divided into two portions in the rim width direction so that the first rim portion 10 and the second rim portion 20 are each configured to include one flange .

The steel wire fixing portion 30 is for fixing the first steel wire 60 and the second steel wire 60 'to the first rim portion 10 and is provided on the opposite side of the first rim portion on the side where the tire is present . The steel wire fixing portion 30 may be integrally formed with the first rim portion 10 when the wheel is manufactured or formed separately from the first rim portion 10 and may be attached later by welding or the like.

The first rim controller 50 and the second rim controller 50 'adjust the rim width or adjust the pattern of the tread by adjusting the lengths of the first and second steel wires 60 and 60'. The first rim controller 50 and the second rim controller 50 'are fixed to the rim. For example, as shown in Fig. 1, on the disc 30 attached to the second rim 20, Can be installed on the side of the steel wire fixing part (10) facing the steel wire fixing part (30). The first rim controller 50 and the second rim controller 50 'are electrical control systems configured to increase or decrease the length of the steel wire and to adjust the shape of the tread by rotating in the direction of rotation of the tire . The first rim controller 50 and the second rim controller 50 'may operate in response to the angle of the steering wheel, the speed of the vehicle, or both. The first rim controller 50 and the second rim controller 50 'increase the rim width by increasing the length of the steel wire at the time of turning the vehicle in response to the angle of the steering wheel, the speed of the vehicle, or both, It is possible to increase the lateral force of the tire necessary for turning at the time of turning. Further, in this case, the driving stability at the time of turning traveling can be improved due to the wide ground surface area of the tire.

The first steel wire 60 and the second steel wire 60 'are installed between the steel wire fixing portion 30 and the rim controller 50. As the length of the steel wire is adjusted, the linear distance between the flange of the first rim portion and the flange of the second rim portion, that is, the rim width, is adjusted, whereby the grounding area of the tire can be adjusted.

As shown in FIG. 1, when the length of the steel wire increases, the first rim moves in the direction of the arrow A to become the tire 80 indicated by the solid line, so that the ground contact area of the tire becomes wider, The first rim portion moves in the direction of the arrow B to become the tire indicated by the broken line, and the grounding area of the tire becomes narrow.

In addition, the first rim controller 50 and the second rim controller 50 'may reduce the width of the steel wire by reducing the length of the steel wire at the time of high-speed driving of the vehicle in response to the angle of the steering wheel, The grounding area can be reduced, and a slight pressure rise can be expected. Therefore, in this case, rolling resistance is lowered in terms of environment friendliness, so that fuel can be saved.

The airtight rubber 70 seals a gap between the first rim portion 10 and the second rim portion 20 at a portion where the first rim portion 10 and the second rim portion 20 contact each other. Air sealed by the tire and the first rim portion 10 and the second rim portion 20 is influenced by a change in length of the first and second steel wires 60 and 60 ' .

The tire characteristic control device according to the present invention can be installed on an automobile tire wheel. When the apparatus according to the present invention is installed on a tire wheel, two or more (e.g., four) rim controllers, steel wires, and steel wire fixtures may be installed, respectively.

Further, by utilizing the present invention, it is possible to stably mount the tire while adjusting the rim width of the tire in the case of mounting different tires (for example, when 8.5J tire is changed to 8J tire). In other words, the tire can be mounted for two or more tire width sizes by reducing or increasing the length of the steel wire by the rim controller.

In the present invention, the first rim controller 50 and the second rim controller 50 'can control not only the ground area of the tread but also the arrangement of the blocks by rotating the wheel, thereby shortening the braking distance of the tire .

Next, the operation principle of the tire characteristic control apparatus of the present invention will be described with reference to FIG. As shown in FIG. 2 (a), the first rim controller 50 and the second rim controller 50 'are constituted in one set so that the length of the first and second steel wires 60 and 60' . The position of the wheel is determined by adjusting the length of the two steel wires 60 and 60 '. By using the length of two steel wires (60. 60 ') and the trigonometry, it is possible to arrange them at desired positions. As shown in FIG. 2 (b), when the first rim controller 50 and the second rim controller 50 'adjust the first and second steel wires 60 and 60' to the same length, It is adjustable in the lateral direction in the running direction. As shown in FIG. 2 (c), only one rim controller of the first rim controller 50 and the second rim controller 50 'is rotatable from the other rim controller when the wire length is adjusted. When the lengths of the first and second rim controllers 50 and 50 'are adjusted, as shown in FIG. 2 (e), the tire travel direction and all directions can be moved.

3 is a schematic view for explaining the principle of deforming the pattern of the tire tread portion by the change of the divided wheel. 3 (a) is rotated through the wheel deformation of the present invention as shown in Fig. 3 (b), and Fig. 3 (c) shows a deformed shape of the pattern at that time It is. With this principle, the braking distance can be shortened by adjusting the shape of the pattern according to the driving conditions of the vehicle, or the fuel efficiency can be improved by controlling the rolling resistance, thereby realizing an environmentally friendly and ultra high performance (UHP) tire.

Fig. 4 shows the difference in the action of the lateral force as the arrangement and shape of the tread pattern of the tire change. When cornering, lateral force is generated by the difference between the traveling direction of the vehicle and the traveling direction of the tire, and thus the vehicle can be turned. When the shape of the tread block of the tire is as shown in Fig. 4 (a), there occurs a difference in lateral force acting on the ground. At this time, as shown in Fig. 4 (b), when the pattern is deformed, the direction of the pattern of the lateral force becomes the same, and more effective generation of the lateral force becomes possible. This makes it safer and more accurate when cornering.

Another aspect of the present invention relates to a tire wheel having a tire characteristic control apparatus of the present invention and a tire having such a tire wheel. The tire equipped with the tire characteristic control device of the present invention can be installed in a set on two front wheels or two rear wheels of a vehicle.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

10: first rim 20: second rim
30: Steel wire fixing part 40: Disk
50: first rim controller 50 ': second rim controller
60: first steel wire 60 ': second steel wire
70: air tight rubber 80: tire

Claims (7)

A first rim portion fixed to a driving portion of the vehicle,
A movable second rim portion configured to overlap an end portion at a center portion of the rim width with the first rim portion and capable of moving in the width direction of the rim or rotating in the running direction of the tire;
A steel wire fixing portion formed on the first rim portion on a side opposite to a side where the tire is present;
At least one first rim controller installed on a disk attached to the second rim portion and controlling movement and rotation of the second rim portion;
At least one second rim controller spaced apart from the first rim controller on a disk attached to the second rim and operatively associated with the first rim controller to control movement and rotation of the second rim;
A first steel wire disposed between the steel wire fixing portion and the first rim controller at a plurality of locations along the circumferential direction of the tire;
A second steel wire disposed between the steel wire fixing portion and the second rim controller at a plurality of locations along a circumferential direction of the tire; And
And an airtight rubber that maintains airtightness at a contact portion between the first rim portion and the second rim portion,
Both the first steel wire and the second steel wire are adjusted in length by the first rim controller or the second rim controller so that both the movement in the rim width direction and the rotation in the tire running direction are performed. The tire characteristic control device.
The tire according to claim 1, wherein the first rim controller and the second rim controller increase or decrease the length of the first steel wire and the second steel wire by the same length to increase or decrease the rim width, Wherein the tire characteristic control device comprises:
The method as claimed in claim 1, wherein one of the first rim controller and the second rim controller is operated so that only one of the steel wires of the first steel wire and the second steel wire is connected to another rim controller The tire characteristic control device comprising:
delete A tire wheel comprising a device according to any one of claims 1 to 3.
A tire comprising the tire wheel according to claim 5.
The tire according to claim 6, wherein the tire characteristic control device is installed in a set on two front wheels or two rear wheels of the tire.

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