KR200363304Y1 - Slippage measuring apparatus of tire and rim - Google Patents

Abstract

The present invention relates to a slippage measuring device of a tire and a rim of an automobile, and easily and accurately measures the degree of sliding in the circumferential direction during rapid braking or rapid acceleration in a state where the tire and the rim are combined. It aims to do it.

The slip and sebum measuring device of a tire and a rim according to the present invention includes a first light reflection sticker attached to an outer circumferential surface of a tire, and a second light reflection sticker positioned on the same axis as the first light reflection sticker and attached to an outer circumferential surface of a rim. A light reflection sticker composed of a light reflection sticker; A sensor for recognizing light reflected from the light reflection sticker; And an inspection device having a display configured to receive and quantify the electrical signal from the sensor.

Description

SLIPPAGE MEASURING APPARATUS OF TIRE AND RIM}

The present invention relates to a slip sebum measuring device of a tire and a rim of an automobile, and a tire for easily and accurately measuring the degree of sliding in the circumferential direction during sudden braking or rapid acceleration in a state where the tire and the rim are combined. It relates to a slip sebum measuring device of the rim.

In general, a tire of a vehicle includes a support function for supporting the entire load of the vehicle, a power transmission function for transmitting the driving force and braking force of the vehicle to the road surface, an impact mitigation function for mitigating external shocks caused by irregular road surfaces, and the progress of the vehicle. It is provided with the position switching function etc. which change a position according to a direction.

The general structure of the tire, as shown in FIG. A tread 110 that is a thick rubber layer in direct contact with the road surface; A shoulder 120 that constitutes the shoulder portion of the tire 100 with the thickest thickness; Side wall (Side Wall, 130) to improve the ride comfort by the flexible stretching movement on the side of the tire and the type, size, manufacturer, etc. of the tire is displayed; A bead (140) surrounding the end of the cord so that the tire is mounted on the rim; Carcass (400) made of tire cord paper as a part which forms a skeleton of the tire and withstands air pressure and load or impact in the tire; The belt is inserted into the tread 110 and the carcass 400 to mitigate external shocks while traveling, and prevents the tread 110 from breaking or trauma to the carcass 400 directly. 200); It consists of an inner liner (Inner Linner, 300) to prevent the leakage of air to the rubber layer provided inside the carcass 400.

Slippage of tires indicates the degree of slippage of tires during sudden braking or rapid acceleration when the tires and rims are coupled. do.

If the slippage of the tire exceeds a certain value, the braking and acceleration performance of the vehicle is lowered, resulting in a reduction in fuel efficiency. In addition, the bead of the bead surrounding the end of the cord paper is reduced according to whether the tire and wheels are seated and the air pressure is insufficient, thereby reducing the riding comfort by causing the vehicle to vibrate and shake. It is important to measure sebum.

However, in the conventional measurement of slip sebum of tires and rims, most of them depend on subjective judgment by the naked eye, and there is a problem in that accurate measurement cannot be made.

In addition, it takes a lot of time to measure a large amount of slip sebum in an automobile company or a tire maker, and there is a problem inherent in the possibility of misjudgment according to various ambient conditions.

The present invention has been made in order to solve the above-mentioned conventional problems, and aims to measure slippage easily and accurately using stickers and sensors, and to quickly measure slippage of large quantities.

1 is a cross-sectional view showing a general tire.

Figure 2 is a side view showing a tire with a light reflection sticker according to the present invention.

3 is a configuration diagram schematically showing a slip sebum measuring apparatus of a tire and a rim according to the present invention.

<Explanation of symbols for main parts of drawing>

10 ..... Tire

20 ..... Rim

30 ..... Sensor

40 ..... Inspection device

In order to achieve the above object, the present invention, the first light reflection sticker is attached to the outer peripheral surface of the tire (Tire), the first light reflection sticker is located on the same axis and attached to the outer peripheral surface of the rim (Rim) A light reflection sticker composed of two light reflection stickers; A sensor for recognizing light reflected from the light reflection sticker; And an inspection device having a display configured to receive and quantify the electrical signal from the sensor.

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

FIG. 2 is a side view showing a tire with a light reflection sticker according to the present invention, and FIG. 3 is a configuration diagram schematically showing an apparatus for measuring slippage of a tire and a rim according to the present invention.

Tire with a light reflection sticker according to the present invention, as shown in Figure 2, the tire (Tire, 10) for maintaining the air pressure while bearing the load with the elastic member; A first light reflection sticker 11 attached to an outer circumferential surface of the tire 10 to reflect external light; A rim (Rim) 20 mounted to the through-hole formed in the tire 10; It is attached to the outer circumferential surface of the rim 20, the second light reflection sticker 21 for reflecting the external light;

3 is a configuration diagram schematically illustrating a slip sebum measuring apparatus of a tire and a rim according to the present invention, and includes a first light reflection sticker 11 attached to an outer circumferential surface of the tire 10 and an outer circumferential surface of the rim 20. Light reflection stickers (11, 21) consisting of a second light reflection sticker (21) attached to; An inspection device 40 having a sensor 30 that recognizes the light reflected by the light reflection stickers 11 and 21 and a display that receives and digitizes an electrical signal from the sensor 30; Is shown.

The light reflection stickers 11 and 21 attached to the tire 10 and the rim 20 reflect the light sent from the sensor 30 to the tire 10 and the rim 20 so that the sensor 30 recognizes the light. It does what it does.

When the vehicle enters a space provided with a measurement device (sensor, inspection device), the sensor 30 sends light to a portion where the light reflection stickers 11 and 21 of the tire 10 are attached. The light sent from the sensor 30 is reflected by the light reflection stickers 11 and 21 of the tire 10, and the reflected light is again recognized by the sensor 30 and converted into an electrical signal. The electrical signal is numerically represented on a display.

The sensor sets a reference value in advance by setting the reference position according to the angle of the circumferential direction of the tire.

The inspection device 40 converts the electrical signal related to the position change of the tire 10 and the light reflection stickers 11 and 21 attached to the rim 20 detected by the sensor 30 into numerical information. It is a device that displays on the display so that the examiner or driver can easily determine the slip sebum state of the tire 10 and the rim 20.

Such an inspection apparatus 40 is preferably attached at a position where the driver can easily check the results before and after the test even in the driver's seat or at a position where the inspector can easily determine.

Hereinafter, the slip sebum measuring method of the tire 10 and the rim 20 is demonstrated. First, as shown in FIG. 3, the tester stops at a position where a sensor is mounted by driving a vehicle having a light reflection sticker attached thereto. The sensor emits light to the stopped vehicle to determine the standard by identifying the position of the light reflection sticker attached to the tire and the rim.

Next, the vehicle is subjected to the rapid acceleration or deceleration test according to the specified test conditions, and then the vehicle is returned to the place where the measuring device is provided and stopped. The light is emitted again from the sensor to the light reflection sticker attached to the tire and the rim of the vehicle. Changes in the position of the stickers on the tires and rims are converted into electrical signals and represented as digitized information on the display. It is determined whether the vehicle is defective by determining whether the digitized information meets a predetermined reference value.

Therefore, according to the slip sebum measuring apparatus, it is possible to accurately measure whether slip sebum is generated.

In the above description of the preferred embodiment of the present invention, the present invention is not limited to this, and those of ordinary skill in the art have various implementations without departing from the technical spirit of the present invention described in the claims of the present invention. Yes or change of shape will be possible.

As described above, according to the slip sebum measuring device of the tire and the rim according to the present invention, by accurately measuring whether the slip sebum is generated and improving the cause of the occurrence, by minimizing the occurrence of vibration or vibration of the vehicle to improve the ride comfort It can work.

Claims (1)

The first light reflection sticker 11 attached to the outer circumferential surface of the tire 10 and the second light reflection sticker 11 coaxial with the first light reflection sticker 11 and attached to the outer circumferential surface of the rim 20 Light reflection stickers (11, 21) consisting of a light reflection sticker (21); A sensor 30 for recognizing light reflected from the light reflection stickers 11 and 21; An inspection apparatus 40 having a display for receiving an electrical signal from the sensor 30 and digitizing the electrical signal; Slippage measurement device of the tire and the rim, characterized in that it comprises a.