JPH0350444Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a device for measuring the amount of side slip of an automobile.

<Prior Art> At automobile manufacturing plants, maintenance shops, etc., the amount of wheel slippage that occurs when a car is running is measured. As shown in Fig. 5, in the conventional device, a side slip tester 2 is installed approximately parallel to the floor surface on which a car runs, and the car is driven into the side slip tester 2 at a low speed (4 km/h or less) at right angles to the side slip tester 2. , passing through the front and rear wheels.

<Problems to be solved by the invention> According to the conventional device described above, there is a long distance between the span L of the side slip tester 2 in the direction of travel of the automobile and the wheelbase W of two automobiles in front and behind this side slip tester 2. of inspection floor space is required. Furthermore, the approach speed of the vehicle varies depending on the operator's intuition, and the approach angle is also uncertain, which adversely affects the accuracy of measuring the amount of sideslip.

<Means for solving the problems> The present invention provides a side slip measuring device that solves the above-mentioned conventional problems. A moving device that moves forward and backward in the direction, a side slip tester for the front and rear wheels connected to the moving device at front and back intervals equal to the wheel base of the vehicle, and a side slip tester for the front and rear wheels.
An equalizer that touches the inside surface of the rear wheel and expands and contracts in the left-right direction and is connected to each of the side slip testers to align the center of the vehicle with the center of the device; It is comprised of a vehicle fixing device that can be raised and lowered to restrain the backward movement of the vehicle.

<Function> The present invention allows the vehicle to enter and stop on the moving device, align the center of the vehicle with the center of the device using the equalizer, restrain the vehicle from moving backwards with the vehicle fixing device, and move the side slip tester backwards and forwards using the moving device. The vehicle is moved forward to cause relative movement between the vehicle and the side slip tester, and the amount of sideslip is measured using a determination device.

<Example> Hereinafter, an example of the present invention will be described based on FIGS. 1 to 4. In FIG. 1, 3 is a moving device. The moving device 3 is composed of a pair of left and right endless belts 4 that are moved forward and backward by a reversible drive motor 5 in the same direction as the forward and backward direction of the vehicle A, and is installed parallel to the floor surface.

A side slip tester 2a for the front wheels and a side slip tester 2b for the rear wheels are connected to the endless belt 4 of the moving device 3 at a longitudinal interval equal to the wheel base of the vehicle.

The side slip testers 2a and 2b are provided with an equalizer 6 that aligns the center of the vehicle with the center of the device. As shown in FIGS. 2 and 3, the equalizer 6 contracts inward to provide a gap when the vehicle A moves forward and backward and during measurement, and expands when determining the center position. The structure is such that the expansion and contraction operation is performed by the cylinder 7.

8 is a vehicle fixing device. This restricts the backward movement of vehicle A that has entered the device and stopped.When vehicle A moves forward or backward, it is brought down parallel to the floor by an unillustrated cylinder, and during measurement, it stands up and touches the rear of vehicle A. It has a structure that allows it to rotate.

Since the present invention has the structure as described above, the vehicle A
enters the apparatus and stops so that the front and rear wheels T are located immediately behind the side slip testers 2a and 2b, which are located at the forward end as shown in FIG. In this state, the equalizer 6 is activated and comes into contact with the inner surfaces of the front and rear wheels T, as shown in FIG. 3, to position the center of the vehicle A at the center of the device. After this positioning of the vehicle A, the equalizer 6 is spaced apart from the inner surfaces of the front and rear wheels T to form a gap as shown in FIG.

Thereafter, the moving device 3 is activated to first move the side slip testers 2a, 2b backward at a speed of, for example, 3 km/n. This allows the side slip tester 2
a is the front wheel T, and side slip tester 2b
passes through the rear wheel T and moves to the rear end, then moves forward at high speed and returns to the original forward end. When the side slip testers 2a, 2b move backward and forward relative to the vehicle A, the vehicle sideslip signal from the side slip testers 2a, 2b is received by the judgment device 9, and the judgment device 9 compares it with the judgment criteria to make a pass/fail judgment. It is.

<Effects of the invention> As described above, according to the invention, the side slip testers for front and rear wheels are moved backwards and forwards at the same speed as when the vehicle is running while the vehicle is stopped inside the device. Therefore, the span of the device is sufficient for one vehicle, and the floor space can be reduced. In addition, the drive motor allows the side slip tester to move backwards and forwards at a constant speed, and the center of the vehicle is always correctly aligned with the center of the device, which has the advantage of uniformity of test conditions and improved inspection accuracy. There is.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the present invention, Figure 2 is Figure 4-
It is a line cross-sectional view, showing a non-operating state. FIG. 3 is a sectional view of FIG. 4 and shows the state in operation. FIG. 4 is a plan view of the present invention, showing the state in which the vehicle enters the fixed position. FIG. 5 is an explanatory diagram of a conventional device. 2a, 2b...side slip tester, 3...
...Moving device, 6...Equalizer, 8...Vehicle fixing device.

Claims (1)

[Scope of utility model registration request] A moving device installed parallel to the floor surface that moves forward and backward in the same direction as the vehicle's advancing and retreating direction, a side slip tester for the front and rear wheels connected to this moving device at front and rear intervals equal to the wheel base of the vehicle, and , an equalizer that comes into contact with the inner surface of the rear wheel and expands and contracts in the left-right direction and is connected to each of the side slip testers in order to align the center of the vehicle with the center of the device; A side slip measuring device for an automobile, comprising a tiltable vehicle fixing device that comes into contact with the device and restrains the backward movement of the vehicle.