KR20090120218A - Wheel alignment measuring equipment - Google Patents

Abstract

PURPOSE: A wheel alignment measuring system of a vehicle is provided to simplify the work by easily measuring the wheel alignment with a pair of tools. CONSTITUTION: A wheel alignment measuring system of a vehicle is composed of horizontal and vertical frames(1,2), a moving frame, a laser generator(4), a scale unit, and a display unit(6). The horizontal frame has two fixing supports(11) and an electronic level(12). The electronic level checks the horizontal state about the ground. The vertical frame is perpendicularly mounted in the upper part between the fixing supports of the horizontal frame. The moving frame has a moving support(31) and a fixing member(32). The moving frame is vertically elevated along the vertical frame. The fixing member fixes the moving frame to the predetermined position. When the fixing and moving supports are mounted to the wheel, the horizontal frame is extended to the outside of the wheel and laser generator irradiates the laser beam vertically to the vertical frame. The scale unit is formed at one side which comes close to a laser lens. The display unit includes several input buttons(61). The display unit displays the absolute value.

Description

Wheel alignment measuring equipment of a vehicle

The present invention relates to an apparatus for measuring wheel alignment of a vehicle, and more particularly, to an apparatus for measuring wheel alignment of a vehicle, which is developed to be easily movable and easily mounted on a vehicle to measure various alignments.

The wheel alignment of the vehicle indicates the angle relationship between each component of the vehicle suspension and steering, and the angle of the vehicle evenly distributes the weight of the vehicle to the suspension and the drive of the tire. It is designed by the vehicle manufacturer for distribution.

The reason for setting the wheel alignment is that the tire has a maximum number of miles, that is, a very important factor to ensure the straightness of the vehicle and to ensure driving stability.

Looking at the elements that make up the specific alignment, first, the caster is a direction control angle and has nothing to do with tire wear, and when viewed from the side of the vehicle, the inclination of the steering shaft (usually 3-7 °) is given.

This provides direction control and resiliency and serves to keep the front wheels facing the front or to turn and return to the front.

In addition, the camber is a tire wear angle and an angle associated with directional control, and refers to an angle formed perpendicular to the center line of the wheel (0 degrees) when viewed from the front of the vehicle.

This prevents the wheels from escaping when the tire contact point is close to the load action point, and the vehicle load can be loaded on the inner wheel bearing and the spindle to facilitate steering.

In addition, toe is a straight angle of the tire, and the toe is related to the direction control and is referred to as "toe in" when the front part of the tire faces inward and "toe out" when facing outward.

This is to set the toe-in on the front wheel so that the tire is pointed straight in the direction of travel while the vehicle is driving.

The steering shaft tilt (SAI) is also the direction control angle of the SAI (or kingpin) and is not adjustable. The steering shaft tilt (SAI) is the tilt of the steering shaft with respect to the vertical (0 degrees) when the vehicle is viewed from the front. By distributing closer to the wheel, the wheels provide pivot points that make the wheel easier to steer and increase resilience.

In addition, the turning radius is the tire wear angle, which is unadjustable by itself and reduces the drag of the tire to a minimum level during the curve.

If the rotation angle is abnormal, one of the tires wears out prematurely, driving stability is poor when turning, and abnormal noise is generated during high speed driving.

In addition, the included angle indicates that the intersection point located below the road surface inside the tire tread has a toe-out effect for the front wheel, and the intersection point above the road surface has a toe-in effect.

This causes the vehicle to tilt if the spindle is bent at one wheel.

In addition, the setback (setback) is the position (front or back) of the opposite wheel with respect to either of the left and right wheels, the diagnostic angle as a secondary element in the wheel alignment check.

In this case, large setback indicates bad parts of the car body and unbalanced left and right, such as casters. If the setback of the car is more than about 15mm (1.5 degrees), it is necessary to carefully check the left and right differences and dimensions of different angles.

In addition, the thrust angle refers to the angle difference between the direction in which the vehicle proceeds and the geometric center line. As the left and right difference of the rear wheel toe increases, the angle difference between the progress line and the geometric center line of the car increases, so that the car does not go straight.

This factor is important enough to hire a technician dedicated to such alignment in a first-class workshop because the optimum values differ from vehicle to vehicle and must be precisely measured.

However, wheel aligners that measure these wheel alignments are often large and expensive, costing tens of thousands of won. In general, maintenance companies simply balance the wheels, or balance.

The present invention was developed in order to solve the above problems, and an object thereof is to allow the alliance measuring wheel alignment to be easily measured with a simpler structure.

In order to achieve the above object, the present invention has two fixed supports having a rod shape extending in the horizontal direction and protruding rearwardly are mounted at regular intervals, and equipped with an electronic leveler that can check the state horizontal to the ground. A horizontal frame;

A vertical frame mounted vertically between the two fixed supporters of the horizontal frame;

A movable frame having a movable support having a rod shape protruding rearwardly and vertically up and down along the vertical frame and having a fixing means fixed at a predetermined position;

When the fixed support and the moving support is mounted on the wheel of the wheel, the horizontal frame is further extended to the outside of the wheel and the laser oscillator to irradiate the laser beam so that it is laterally perpendicular to the vertical frame mounted at its end ;

A scale formed on one side of the laser lens which oscillates the laser beam in the laser oscillator;

And a display unit mounted on the horizontal frame and having a plurality of input buttons and displaying an absolute value according to a value to be measured.

In addition, the vertical frame is formed with a cutout extending in the vertical direction in the center;

The movable frame is bent to surround at least three surfaces of both sides and a front or rear surface of the vertical frame, and a through hole corresponding to the cutout is formed;

The fixing means is screwed with the front surface of the moving support characterized in that the moving frame and the vertical frame is configured to be fixed to hold tightly fixed.

In addition, the fixing means is a screw hole formed on the front surface of the movable support, a fixed handle is formed on the rear coupling shaft corresponding to the screw hole, the compression coil spring is inserted into the coupling shaft, the coupling Consisting of a disc-shaped fixed washer in which the shaft is inserted;

Compression coil spring is mounted between the back of the fixed handle and the fixing washer, characterized in that the vertical frame and the moving frame is positioned between the fixed washer and the movable support.

As described above, the present invention enables the wheel alignment to be easily measured with two sets of tools without any complicated equipment, thereby reducing the convenience of work and the high cost of purchasing the measuring device. have.

Accordingly, the configuration of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily understand and reproduce.

1 is a perspective view according to an embodiment of the present invention, Figure 2 is a partially enlarged view according to an embodiment of the present invention, Figures 3 and 4 is a conceptual diagram showing an example of use according to an embodiment of the present invention. .

The configuration of the present application is provided with two fixed support (11) having a rod shape extending in the horizontal direction and protruding rearwardly at regular intervals, and is equipped with an electronic leveler 12 that can check the state horizontal to the ground A horizontal frame 1;

A vertical frame (2) mounted upwardly between the two fixed support members (11) of the horizontal frame (1);

A moving frame 3 having a movable support 31 having a rod shape protruding rearwardly and vertically moving up and down along the vertical frame 2 and having a fixing means 32 to be fixed at a predetermined position. )and;

When the stationary support 11 and the movable support 31 are mounted on the wheel 71 of the wheel 7, the horizontal frame 1 further extends to the outside of the wheel 7 to be mounted at the end thereof. A laser oscillator 4 for irradiating the laser beam 41 so as to be perpendicular to the frame 2 laterally;

A scale portion 5 formed on one side of the laser lens 42 that oscillates the laser beam 41 in the laser oscillator 4;

And a display unit 6 mounted on the horizontal frame 1 and having several input buttons 61 and displaying an absolute value according to a value to be measured.

The present invention is to measure by mounting the wheel alignment measurement device of the vehicle according to the two sets of two on each side of the corresponding wheel at this time, the support is supported by the two fixed support (11) and movable support (31) It is fixed to be in close contact with the inner inner wall of the 71) and is fixed to the exact horizontal position by the electronic leveler 12 formed in the horizontal frame (1).

Then, when the laser beam 41 is irradiated from both sides, the laser beam 41 irradiated from the corresponding device is irradiated to the scale part 5 to check whether the mutual angle is more than the allowable value.

At this time, the graduation unit 5 makes it easier for the operator to distinguish the color by differentiating the color of the place where the allowable value and the allowable value are different from each other.

In addition, in the case of the display unit 6, only a simple number and a symbol are displayed, and the input button 61 is preferably provided with a reset button to return to the first screen when performing a system initialization.

In addition, if the wheel is bent due to the runout selection button or the alignment value is affected, it is preferable to perform the runout to correct the runout.In this case, the runout is rotated 180 degrees after the wheel 71 is rotated and then rotated 180 degrees. After pressing the key, it is preferable to display the run out correction value.

For caster measurement, if you press the button for measuring the caster, turn it to 10 degrees to the left according to the screen, press the button again, and move it to the right 10 degrees (20 degrees swing) position according to the screen, press the button, and then place it again at 0 degrees. Pressing OK is displayed on the screen, and pressing the button once again enables the embodiment of measuring the caster and the kingpin inclination angle.

In this case, the button means one button of the input button 61 and does not indicate any particular button.

If the camber input button is pressed, the current camber and level values are displayed. If the caster measurement is preceded, the caster value is applied.

At this time, the camber caster can be adjusted.

In the case of the tow, the tow is measured and adjusted by the laser when the power is supplied, and the laser is displayed on the scale plate in this state.

By various such embodiments, the wheel alignment may be measured and calibrated.

At this time, the fixing of the moving frame 3 including the moving support 31 is important for accurate fixing of the wheel alignment measuring device of the vehicle. For this purpose, in the present invention, the vertical frame 2 extends in the vertical direction at the center thereof. An incision 21 is formed;

The movable frame (3) is bent to surround at least three sides of the front and rear surfaces and both side surfaces of the vertical frame (2), and a through hole corresponding to the cutout portion (21) is formed;

The fixing means 32 is provided with an embodiment comprising a fixing handle 321 is screwed to the front surface of the moving support 31 and the moving frame 3 and the vertical frame 2 to be tightly fixed. It was.

In a more specific embodiment, the fixing means 32 is a screw hole formed on the front surface of the movable support 31, and a fixed handle 321 is formed on the rear coupling shaft 322 to be coupled corresponding to the screw hole ), A compression coil spring 323 into which the coupling shaft 322 is inserted, and a disk-shaped fixing washer 324 into which the coupling shaft 321 is inserted;

A compression coil spring 323 is mounted between the rear surface of the fixed handle 321 and the fixed washer 324, and the vertical frame 2 and the movable frame between the fixed washer 324 and the movable support 31. An example is provided in which (3) is configured to be located.

In general, in the case of the screw coupling does not have an elastic means, the loosening or damage of the thread occurs due to the impact, but when it has a certain elastic force, there is an effect that is more firmly fixed while minimizing damage to the device.

1 is a perspective view according to an embodiment of the present invention

2 is an enlarged partial view according to an embodiment of the present invention

3 and 4 is a conceptual diagram showing an example of use according to an embodiment of the present invention

<Explanation of symbols for main parts of the drawings>

1: horizontal frame

     11: fixed support 12: electronic leveler

2: vertical frame

     21: incision

3: moving frame

     31: moving support 32: fixing means

     321: fixed handle 322: coupling shaft

     323: compression coil spring 324: fixed washer

4: laser oscillator

     41 laser beam 42 laser lens

5: graduation

6 display unit

     61: input button

7: wheels

     71: wheel

Claims (3)

Two fixed support members 11 having a rod shape extending in the horizontal direction and protruding rearwardly are mounted at regular intervals, and the horizontal frame 1 on which the electronic leveler 12 is mounted to check a state parallel to the ground. )and; A vertical frame (2) mounted upwardly between the two fixed support members (11) of the horizontal frame (1); A moving frame 3 having a movable support 31 having a rod shape protruding rearwardly and vertically moving up and down along the vertical frame 2 and having a fixing means 32 to be fixed at a predetermined position. )and; When the stationary support 11 and the movable support 31 are mounted on the wheel 71 of the wheel 7, the horizontal frame 1 further extends to the outside of the wheel 7 to be mounted at the end thereof. A laser oscillator 4 for irradiating the laser beam 41 so as to be perpendicular to the frame 2 laterally; A scale portion 5 formed on one side of the laser lens 42 that oscillates the laser beam 41 in the laser oscillator 4; And a display unit (6) mounted on the horizontal frame (1) and having several input buttons (61) and displaying an absolute value according to a value to be measured. According to claim 1, wherein the vertical frame (2) is formed in the center in the incision (21) extending in the vertical direction long; The movable frame (3) is bent to surround at least three sides of the front and rear surfaces and both side surfaces of the vertical frame (2), and a through hole corresponding to the cutout portion (21) is formed; The fixing means 32 is a vehicle characterized in that it comprises a fixing handle 321 for screwing the front of the moving support 31 and the moving frame 3 and the vertical frame 2 in close contact with each other. Wheel alignment measuring device. According to claim 2, wherein the fixing means 32 is a screw hole formed on the front of the movable support 31, the back of the fixed handle 321 is formed with a coupling shaft 322 to be coupled corresponding to the screw hole ), A compression coil spring 323 into which the coupling shaft 322 is inserted, and a disk-shaped fixing washer 324 into which the coupling shaft 321 is inserted; A compression coil spring 323 is mounted between the rear surface of the fixed handle 321 and the fixed washer 324, and the vertical frame 2 and the movable frame between the fixed washer 324 and the movable support 31. Wheel alignment measuring device of the vehicle, characterized in that is configured to position (3).

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