JPH0645231Y2 - Chassis dynamometer device - Google Patents

Description

[Detailed Description of the Invention] A. Industrial Application Field The present invention relates to a chassis dynamometer device capable of properly installing a measuring box.

B. Outline of the Invention The present invention is a chassis dynamometer device in which a blower duct and a measuring box are installed in front of a vehicle in which a drive wheel is placed on a rotatable drum, and is mounted on a movable stand through which the blower duct can be inserted. By mounting the measurement box, the distance between the driver and the measurement box can be easily set regardless of whether the vehicle is front-wheel drive or rear-wheel drive.

C. Conventional Technology Fig. 3 shows the configuration of a conventional chassis dynamometer device. As shown, a drum 1 which is rotatable around an axis extending in the horizontal direction is embedded in a floor 8 and provided. An automobile 3 is provided with the drive wheels placed on the drum 1, and a blower duct 4 is provided in front of the automobile 3. The blower duct 4 is provided for the purpose of reproducing the running state of the automobile 3 and blowing air from the front of the automobile 3 to cool the radiator. The blower duct 4 is provided with wheels 4a,
The drawer length can be changed from inside the wall 5. A measurement box 6 is attached to a wall 5 located in front of the automobile 3. The measurement box 6 includes a speedometer and a tachometer for displaying the traveling speed of the automobile 3 and the number of revolutions of the engine when the drum 1 is rotated by the drive wheels 2, and a pressure for displaying the pressure of the engine oil and the temperature of the cooling water. A meter, thermometer, etc. are provided. Although these measuring instruments are also provided inside the automobile 3, they are provided separately for more accurate detection.

In the case of rear wheel drive as shown in the figure, the right end of the blower duct 4 is A
However, in the case of front-wheel drive, the vehicle 3 moves to the right in the figure by the axial distance, so the right end of the blower duct 4 is set to the position B. This is to keep the distance between the automobile 3 and the blower duct 4 constant.

D. Problem to be solved by the device However, since the measurement box 6 is fixed to the wall 5, it cannot be brought close to the car 3 even if it is difficult for the driver to see it. Further, the distance between the driver and the measurement box 6 is inevitably different between the front wheel drive and the rear wheel drive, but this cannot be set to be the same.

On the other hand, the measurement box 6 can be installed on the blower duct 4 as shown by the chain double-dashed line in FIG. 3, but in this case, the measurement box 6 moves in synchronization with the blower duct 4.

Then, this invention aims at providing the chassis dynamometer apparatus which solved such a subject.

E. Means for Solving the Problems The structure of the present invention for achieving such an object is such that a wind is directed toward a car in front of a car in which driving wheels are mounted on a rotatable drum provided under the floor. It is characterized in that a blower duct for blowing air is provided so as to be able to move toward and away from the car, a moving stand through which the blower duct can be inserted is provided in front of the car, and a measuring box is placed on the moving stand.

F. Action Since the blower duct can be freely inserted into the mobile stand, the distance between the blower duct and the mobile stand with respect to the vehicle can be set independently and independently.

Therefore, the distance from the vehicle to the blower duct and the measurement box can be easily set to an appropriate value regardless of whether the vehicle is front-wheel drive or rear-wheel drive.

G. Embodiment Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. Since the present embodiment is an improvement of a part of the conventional chassis dynamometer device, the same parts as those of the prior art are designated by the same reference numerals, and the description thereof will be omitted. Only different parts will be described.

(A) Configuration of the embodiment The configuration of the chassis dynamometer device according to the present invention is as follows:
A description will be given with reference to FIGS.

As shown in the figure, a moving table 7 is provided on the line connecting the blower duct 4 and the automobile 3. As shown in FIG. 2, the movable table 7 is formed of a frame body having a U-shaped cross section. This is so that the blower duct 4 can be inserted into the movable table 7.
The moving table 7 is provided with four wheels 7a so that the distance between the vehicle 3 and the moving table 7 can be easily changed.

The measurement box 6 is mounted on the moving table 7 configured as described above.

(B) Operation of the Embodiment Next, the operation of the chassis dynamometer device will be described.

Driver A using a rear-wheel drive vehicle as shown in FIG.
When conducting the test, the distance between the automobile 3 and the blower duct 4 is set to a, and the distance between the automobile 3 and the measurement box 6 is set to b.

After that, when the driver B conducts a test using a front-wheel drive vehicle, the following settings are made. From the state of FIG. 1, the automobile 3 moves to the right in the figure by the axial distance between the front wheels and the rear wheels, so that the blower duct 4 also moves to the right in the figure by the axial distance so that the distance a does not change. To move. And
When the driver B wants to set the distance between the automobile 3 and the measuring box 6 to be a distance b ′ that is sufficiently larger than the distance b, the moving table 7 is moved slightly to the left from the state shown in FIG.

In such a case, the blower duct 4 can be inserted into the movable table 7 and the blower duct 4 and the movable table 7 can be overlapped with each other in FIG. 1, so that the blower duct 4 and the measurement box 6 can be easily set.

H. Effects of the Invention As can be seen from the above description, the chassis dynamometer device according to the present invention has the following effects.

That is, since the measuring box is placed on the moving table that can insert the blower duct, it is possible to overlap the moving table with the blower duct, and the measuring box can be moved independently without being affected by the movement of the blower duct. is there. Therefore,
Easy setting of blower duct and measuring box.

[Brief description of drawings]

1 and 2 relate to an embodiment of a chassis dynamometer device according to the present invention, FIG. 1 is a configuration diagram of the chassis dynamometer device, FIG. 2 is a view taken along the arrow II of FIG. 1, and FIG. 3 is It is a block diagram of the conventional chassis dynamometer device. 1 ... drum, 2 ... driving wheel, 3 ... automobile, 4 ... blower duct, 6 ... measuring box, 7 ... moving base, 7a ... wheels, 8 ... floor.

Claims (1)

[Scope of utility model registration request] 1. A blower duct for blowing wind toward a vehicle is provided in front of a vehicle having driving wheels mounted on a rotatable drum provided under the floor so that the blower duct can approach and separate from the vehicle. A chassis dynamometer device characterized in that a movable table which can be inserted is provided in front of an automobile and a measuring box is mounted on the movable table.