KR20140077307A - Vehicle tire capable of indicating wear status - Google Patents

Abstract

The present invention relates to a vehicle tire and a vehicle providing information on tire wear capable of informing drivers about the state of the tire wear by including a wear limit indicating unit embedded with an RFID chip for detecting the state of the tire wear. According to the present invention, the invention enables drivers to be aware of the tire wear condition and the abnormal state of the tire wear such as heel and toe wear in real time so that the drivers can safely drive a car and avoid accidents.

Description

VEHICLE TIRE CAPABLE OF INDICATING WEAR STATUS}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vehicle tire having a wear limit indicator, and more particularly to a vehicle tire having a wear limit indicator having an excellent safety of a tire, .

1, the tire generally comprises inner liners 10 and 20 constituting the inside of the tire, a carcass 20 laminated on the outer periphery of the inner liners 10 and 20, 20, a tread 40 which is stacked on the outer periphery of the belt 30 and substantially in contact with the ground, both sidewalls 50 constituting both side portions of the tire, And both beads (60) coupled to the wheel to maintain air pressure.

As the running time of the tire passes, the wear of the tread 40 is progressed, the initial performance of the tire is lowered, and when the progress of the wear is severe, tire rupture may occur. Therefore, in order to prevent accidents, the tire must be replaced at a proper time before a tire accident by abrasion occurs. However, since many drivers are not aware of the wear of a tire, it is often the case that the vehicle is operated without exceeding the wear limit of the tire.

In order to allow the tire user to understand the degree of wear of the tire in order to allow the driver to take appropriate measures according to the time of replacing the tire and the state of wear, Is inserted into the bell crest portion (41). However, in the case of the conventional wear limit indicator, it is difficult to confirm the abnormal wear occurring before the tire because it informs only the replacement time.

Especially, in the case of heel and toe wear which occupies a large portion of the abnormal wear of the tire, it is difficult for the user to judge accurately by the existing wear limit indicator. In order to overcome such a problem, a tire has been developed in which a plurality of small holes are arranged in the traveling direction of the tread block to allow the tire user to know the degree of heel and toe wear.

However, such a tire arbitrarily damages the surface of the tire and causes various performance deterioration such as tire wear performance, braking performance, noise performance, and handling performance. Also, if the hole is simply placed on the surface, the user can not know the heel and toe wear quantitatively, and the foreign matter easily gets into the hole, so that the wearer can not judge the wear degree.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wear limit indicator having a built-in RFID chip for indicating abrasion conditions for easily identifying abnormal wear of a tire, And to provide a tire for a vehicle.

It is another object of the present invention to provide a vehicle equipped with a tire wear state information providing device which quantitatively informs a driver of abnormal wear of a tire such as a heel and toe wear in real time.

According to one aspect of the present invention, there is provided a tire having main grooves and sub-grooves formed on a tread surface of a tire, the tire including: A plurality of abrasion limit indicators are formed at the leading and trailing ends of the block to indicate the abraded state of the tread provided at predetermined intervals. The abrasion limit indicator has a built-in RFID chip therein, To the tire of the vehicle.

According to one aspect of the present invention for achieving the above object,

A tire comprising a tire wear information providing device,

A receiver for receiving in real time information on a wear state of the tread from RFID chips embedded in a plurality of wear limit indicators provided on a sidewall of each tread block of the tire; And

And a wear condition information providing unit for providing the driver with information on the wear condition and the wear amount in real time by analyzing the signal received from the receiving unit.

The tire according to the present invention informs the driver of quantitative wear state and uneven wear amount in real time during driving so that the user can change the tire at a proper time or change the position of the tire according to the wear state of the tire, It is possible to prevent an accident caused by driving the vehicle in a while.

Further, the present invention is more advantageous in that it provides information on the wear limit, abrasion condition and uneven wear amount without deteriorating the abrasion performance, the braking performance, the noise performance and the handling performance of the tire, It is possible to accurately provide the driver with information on the wear state and the wear amount even if the foreign substance is adhered to the tire surface by adopting the wear limit indicator.

1 is a schematic sectional view of a tire including a conventional wear limit indicator.
2 is a schematic view of a tread block of a tire for a vehicle that indicates abnormal wear conditions according to an embodiment of the present invention.
FIG. 3 is a configuration diagram of a wear limit indicating aperture of a tread block of a vehicle tire which indicates abnormal wear state according to an embodiment of the present invention. FIG.
4 is a schematic view of a vehicle for indicating abnormal wear of a tire according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The features and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings.

FIG. 2 is a schematic view of a tread block of a vehicle tire for indicating abnormal wear state according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of a tread block of a vehicle tire showing a state of abnormal wear according to an embodiment of the present invention. Fig.

2, the tire of one embodiment of the present invention is a tire in which main grooves and sub-grooves are formed on the tread surface of a tire, and the tread is formed on the side wall of each tread block 1 adjacent to the longitudinal groove 2 The abrasion limit indicators (10, 20) are provided with RFID chips (10, 20) for indicating the abrasion state of the tread provided at a predetermined interval at the front end and the rear end of the block with respect to the running direction of the tire, 11) is built in, and is configured to transmit information on wear of the tire and abnormal wear to a receiver mounted on the vehicle.

 In the tire of the present invention constructed as described above, the wear degree of the tread surface can be recognized by checking the number of the wear limit indicators 10, 20 formed on the side wall of each tread block 1. In other words, it is possible to easily identify the time of proper replacement of the tire by easily distinguishing the wear and tear of the leading and trailing ends of each tread block 1 or the abnormal wear occurring at a specific portion due to abrupt friction caused by sudden braking .

It is preferable that the RFID chip 11 uses a standard computer chip and an EPC1 GEN2 RFID chip smaller than a size of 1 mm x 1 mm is used. A wireless antenna of a conductive rubber is used together with a computer chip, and a wear limit indicator 10 , 20). The wireless antenna may be composed of an electrically conductive raw material encapsulated in an insulator formed by a pair of mutually attached nonconductive raw sheets. The insulator is preferably nonconductive, but may be a nonconductive rubber or other material having properties suitable for integration in rubber tires.

The RFID chips 10 and 20 may be, for example, a non-power source RFID chip that receives a signal transmitted from an external RFID reader to generate a power source, or may be a non-power source RFID chip that is connected to another energy source such as heat energy generated by the tire itself Power can be supplied.

The RFID chip 11 provides sensed data to the receiver 20 mounted on the vehicle. The shape of the wear limit indicator (10, 20) is not particularly limited, and may be, for example, a vent hole shape or a square pillar, a triangular pillar, or a cylindrical shape.

The size of the wear limit indicator 10 or 20 is not particularly limited. For example, the width W may be formed within a range of 0.5 to 5.0 mm, and the height H may be formed within a range of 0.5 to 3.5 mm .

The plurality of wear limit indicators 10, 20 may be disposed at equal intervals or different intervals at the front end and the rear end of the tread block, and may be disposed at the front end and the rear end of the tread block at intervals of about 1 mm, for example. Also, 3 to 5 pieces may be formed per each block depending on the depth of the groove.

The wear limit indicators 10 may be installed at a predetermined distance along the circumferential direction of the tire.

Another aspect of the present invention relates to a tire having a tire wear information providing apparatus. The tire according to the present invention includes a receiver (10) for receiving information on the wear state of the tread from the RFID chip (11) built in a plurality of wear limit indicators (10, 20) provided on the side wall of each tread block (30); And a wear condition information providing unit (40) for analyzing the signal received from the receiver and providing information on the wear condition and the wear amount to the driver in real time. The receiving unit 30 performs radio frequency communication with the RFID chip 11 of the tire.

The vehicle's receiver 20 can be mounted in or on the tire, in the vehicle, or on the vehicle. The RFID chips 10 and 20 transmit data in the form of electromagnetic sensor signals that can be read by the receiver 20 in a wireless manner.

The receiver 20 may include an antenna for receiving sensed data in the form of electromagnetic radiation, such as radio frequency transmission, for example. A single receiver or a plurality of receivers 20 may be used to collect data sensed by the RFID chips 10,20.

The wear state information providing unit 40 may display information on the abrasion state of the tire on the instrument panel of the vehicle, the liquid crystal display, or the navigation screen, or information such as abnormal wear, uneven wear, and the like.

The vehicle may further include an alarm generating unit for generating an alarm for an abnormal wear state of the tire so that the driver can replace the tire at an appropriate time.

For example, the information providing unit can notify the wear state and the replacement timing by a warning sound or a warning display. In this case, even if the tire is not an expert, the driver can know the wear state and the replacement timing through auditory, . ≪ / RTI >

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims, There will be.

1: tread
2: longitudinal groove
10, 20: Wear limit indicator
11: RFID chip
20: receiver
30: Wear state information providing unit

Claims (9)

A tread having a main groove and sub grooves formed on a tread surface of a tire is provided with a tread provided on a sidewall of each of the tread blocks adjacent to the longitudinal groove at predetermined intervals at a leading end portion and a trailing end portion of the block, Wherein the abrasion limit indicators are configured to transmit information on abrasion conditions and abnormal wear of the tire by incorporating an RFID chip inside the abrasion limit indicators. A tire for a vehicle.
The vehicle tire according to claim 1, wherein the RFID chip of the wear limit indicator is configured to recognize the remaining number of the wear limit indicator and to calculate and transmit information on the abnormal wear or wear state.
The vehicle tire according to claim 1, wherein the plurality of wear limit indicators are disposed at equal intervals or different intervals at the front and rear ends of the tread block.
The vehicle tire according to claim 1, wherein the abrasion limit indicating bars are provided on the sidewall of the tire groove at a predetermined interval along the circumferential direction.
The vehicle tire according to claim 1, characterized in that the width (w) of the wear limit indicator is in the range of 0.5 to 5.0 mm and the height (H) is in the range of 0.5 to 3.5 mm.
The vehicle tire according to claim 1, wherein the abrasion limit indicator has three to five abrasion limit indicators per block according to the height of the groove.
A tire comprising a tire wear state information providing device,
A receiver for receiving in real time information on a wear state of the tread from RFID chips embedded in a plurality of wear limit indicators provided on a sidewall of each tread block of the tire; And
And a wear condition information providing unit for providing the driver with information on the wear condition and the wear amount in real time by analyzing the signal received from the receiving unit.
[8] The vehicle according to claim 7, wherein the receiver performs radio frequency communication with the RFID chip of the tire.
8. The vehicle according to claim 7, wherein the vehicle further comprises an alarm generating unit for generating an alarm for an abnormal wear state of the tire so that the driver can replace the tire at an appropriate time.

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