JP3000854U - Headlight tester device - Google Patents

Abstract

(57) [Summary] [Purpose] It is an object of the present invention to provide a headlight tester device that improves the efficiency of adjustment work. [Structure] A measuring device 1 for measuring a distance from a front surface of a headlight tester main body 6 to a headlight of a vehicle under test 9, a moving device 13 for moving the headlight tester main body 6 in a front-back direction, and the measuring device 1 And a control device 12 for generating a control signal to the moving device 13 according to the difference between the measurement signal and the setting signal.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a headlight tester device used for inspection and maintenance of automobiles.

[0002]

[Prior art]

 According to the Vehicle Transportation Law, the headlight test must be performed 10 m in front of the headlight, but the measurement should be done 1 m or 3 m in front of the headlight due to the space of the maintenance area. There is. However, the distance was adjusted by fixing the position of the headlight tester and moving the car back and forth while measuring 1m or 3m with a tape measure.

[0003]

[Problems to be solved by the device]

 However, according to this conventional method, while one worker measures the position of the headlight tester with a tape measure, another worker rides on the vehicle and operates the vehicle to finely adjust the vehicle in the front-rear direction. However, there is a problem in that the fine adjustment of the car is difficult and the adjustment work is time consuming because the minimum number of workers is 2 and the work efficiency is poor.

It is an object of the present invention to solve these problems and provide a headlight tester device that improves the efficiency of adjustment work.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a measuring device for measuring the distance from the front face of the headlight tester body to the headlight of the vehicle to be measured, a moving device for moving the headlight tester body in the longitudinal direction, and the measuring device. A control device for generating a control signal to the mobile device according to a difference between a measurement signal from the device and a setting signal is provided.

[0006]

[Action]

 The headlight tester device according to claim 1, wherein the measuring device measures the distance from the front surface of the headlight tester main body to the headlight of the automobile, and the control device which inputs the measuring signal determines the difference between the measuring signal and the setting signal. A corresponding control signal is output to the moving device, and the moving device causes the main body of the headlight tester to be finely adjusted and stopped at a predetermined position.

Thus, by stopping the vehicle within a certain range and moving the headlight tester main body, the adjustment work before measurement can be efficiently performed.

In the headlight tester device according to the second aspect, measurement up to the automobile is performed with a tape measure, and the measured value can be output as an electric signal by the angle detection sensor. This makes it possible to omit the work of visually checking the scale of the tape measure.

In the headlight tester device according to the third aspect, the control device is required to have at least a subtraction circuit, so that the configuration is simple.

In the headlight tester device according to a fourth aspect of the present invention, the drive unit surely stops the moving body at a desired position while moving the moving body on the rail according to the control signal. Thus, the main body of the headlight tester stops at a predetermined distance from the headlight of the automobile.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS.

Reference numeral 7 denotes a left-right rail laid on the floor surface, 4 denotes a base table that moves on the left-right rail 7 in the left-right direction. A front and rear rail 5 for moving the headlight tester main body 6 in the vertical direction is erected on the moving body 3.

On the front surface of the headlight tester main body 6, a translucent portion 6a for measuring the luminous intensity of the headlight, a left and right light receiving sensor 6b for detecting left and right light reception, and a vertical for detecting upper and lower light reception. The light receiving sensor 6c and the display meter 6e for displaying the measured value are provided, and the base stand 4 is provided with an automatic tracking device for stopping the left and right light receiving sensors 6b when the outputs of the left and right light receiving sensors become equal. The headlight tester main body 6 is provided with an automatic tracking device that stops the upper and lower light receiving sensors 6c when the output of the upper and lower light is equalized.

Further, the headlight tester main body 6 is equipped with a measuring device 1 of the present invention, and the measuring device 1 is a tape measure 2 and an angle detection sensor 11 that rotates in association with pulling out or returning the tape measure 2. Consists of.

The moving body 3 includes a drive unit 13 and wheels traveling on the front and rear rails 5 in association with the drive unit 13, and the drive unit 13 is controlled by a control unit 12 as shown in FIG. And is connected to the angle detection sensor 11.

Next, the operation of the headlight tester device of the above embodiment will be described.

When the vehicle to be measured 6 is stopped within a stop range 10 formed on the floor surface at a predetermined distance of, for example, about 1 m in front of the headlight tester device and the headlight is turned on, the automatic tracking device causes The headlight tester main body 6 is in the position directly facing the headlight.

Then, the worker measures the distance to the headlight of the vehicle 6 to be measured with the tape measure 2, outputs a detection signal from the angle detection sensor 11 according to the pulling out of the tape measure 2 at this time, and the control device 12 Calculates the difference of the detected values from a predetermined distance, for example, 1 m in the subtraction circuit, and transmits the difference as a control signal to the drive unit 13 to mount the moving body 3 mounted on the headlight tester main body 6 on the base 4. Use to adjust and move in the front-back direction.

As a result, the front surface of the headlight tester body 6 is located at an accurate distance of 1 m from the headlight, and the headlight can be accurately measured.

[0019]

[Effect of device]

 As described above, according to the present invention, the vehicle to be measured can measure the distance from the measuring device attached to the headlight tester main body only by stopping within a certain range, and the headlight tester moves to a predetermined distance. Therefore, the work can be performed by only one worker, and the adjustment work can be performed more efficiently, and the headlight measurement can be accurately performed.

[Brief description of drawings]

FIG. 1 shows a perspective view of the device of the present invention in use.

FIG. 2 shows a block diagram of an essential part of the present invention.

[Explanation of symbols]

 1 Measuring device 2 Tape measure 3 Moving body 4 Base stand 5 Front / rear direction rail 6 Headlight tester main body 7 Left / right direction rail 8 Pillar 9 Automobile 11 Angle detection sensor 12 Controller 13 Drive unit

Claims (4)

[Scope of utility model registration request] 1. A measuring device for measuring a distance from a front surface of a headlight tester main body to a headlight of an automobile to be measured, a moving device for moving the headlight tester main body in a front-back direction, and a measurement signal from the measuring device. A headlight tester device, comprising: a control device for generating a control signal to the moving device in accordance with a difference between the moving signal and a setting signal. 2. The measuring device comprises a tape measure and an angle detection sensor connected to a rotary shaft that rotates in association with pulling out or returning the tape measure.
Headlight tester device according to. 3. The headlight tester device according to claim 1, wherein the control device includes a subtraction circuit. 4. The moving device includes a rail laid in the front-rear direction on an upper surface of a base to engage a moving member supporting a headlight tester main body in the front-rear direction and a rail for moving the moving member in the front-rear direction. The headlight tester device according to claim 1, comprising a drive unit.