JPH044540B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention provides a method for fixing non-driving wheels of a vehicle in a predetermined position when performing a running test of the vehicle using a running test machine such as a chassis dynamometer. Regarding equipment.

(Prior art) Conventionally, as this type of device, as seen in Utility Model Publication No. 61-26901 and Utility Model Application Publication No. 61-74852, a plurality of front and rear wheels are installed on the upper surface of the surface plate on which the non-drive wheels of the test vehicle rest. A pair of block-shaped stopper members are fitted into the predetermined fitting grooves with the protrusions on the lower surface of the stopper members, and the non-drive wheel is sandwiched between the two stopper members from the front and back and fixed on the surface plate. Those who choose to do so will be known.

(Problem to be solved by the invention) The above method has the advantage of being able to handle vehicles with different wheel bases by changing the mounting position of the stopper member, but when the vehicle is taken in and out of the running test machine, There is a problem in that it is necessary to remove the stopper member from the surface plate, which makes the work troublesome. SUMMARY OF THE INVENTION In order to solve these problems, it is an object of the present invention to provide a fixing device with good workability that does not require attachment and detachment of a stopper member.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a support plate that supports the non-driving wheels of a test vehicle on a base so that its position can be adjusted in the front and rear directions, and the support plate on both front and rear sides of
Hinge-shaped stopper members are each arranged by pivoting a first plate on the front-back direction side located near the outer support plate and a second plate on the outer side by an intermediate shaft, and each stopper member is connected to the first plate. The second plate of each stopper member is pivotally connected to the support plate at its inner end, and the outer end of the second plate of each stopper member is movable forward and backward toward the support plate.

(Function) When the outer end of the second plate of each stopper member is moved in the direction approaching the support plate, the first plate and second plate of each stopper member are bent into a chevron shape and stand up. One plate abuts the non-drive wheel on the support plate from the front and rear, and the non-drive wheel is fixed between the two stopper members.

Furthermore, when the outer end of the second plate of each stopper member is moved in a direction away from the support plate, the first and second plates of each stopper member are flattened and the non-driven wheels are unfixed. In this state, the vehicle under test is taken in and out of the running test machine.

When performing a running test on a vehicle with a different wheelbase, adjust the position of the support plate in the longitudinal direction so that the non-drive wheels rest on it.

(Example) Referring to FIG. 1, 1 indicates a pair of rollers provided at the front part of the floor of the running test machine, 2 indicates a fixing device provided at the rear part of the floor, and the front wheels which are the driving wheels of the test vehicle W are shown. Wa was placed on both rollers 1, 1, and the rear wheel Wb, which is a non-driving wheel, was fixed by the fixing device 2. In this state, the front wheel Wa was driven to perform a running test.

As shown in FIGS. 2 and 3, the fixing device 2 includes a support plate 3 that supports the rear wheel Wb, and the support plate 3.
The support plate 3 is provided with a pair of stopper members 4, 4 on both the front and rear sides of the floor.
It is supported so as to be movable back and forth on a base 6 arranged on the base plate 6 via a large number of guide rollers 6a arranged in a row on the base plate 6, and is screwed into the nut member 7 fixed to the lower surface of the support plate 3 on the base plate 6. A screw rod 8 that is long in the front and back direction
The screw rod 8 is rotatably supported in the forward and backward directions via the timing belt 10 by a motor 9 attached to the base 6. The position can be adjusted. In the drawing, reference numeral 11 indicates a limit switch attached to the nut member 7, and a rod 12 fixed to the base 6
A dog 12a that cooperates with the switch 11 is attached to the switch 11 to detect the position of the support plate 3.

Each of the stopper members 4 includes a first plate 4a on the inside in the front-rear direction located near the support plate 3 and a second plate 4 on the outside.
b are pivotally connected to each other by an intermediate shaft 4c, and each stopper member 4 is connected to the first plate 4.
A is pivotally connected to the support plate 3 via a shaft 4d at the inner end of the support plate 3, and a bracket 3 is provided on the lower surface of the support plate 3, respectively.
A pair of cylinders 13, 13 are installed in opposite directions through the cylinders 13a and 3a, and the piston rod 13a of each cylinder 13 is connected to the second plate 4b of each stopper member 4.
The stopper members 4 are pivotally connected to a lever portion 4e vertically provided at the outer end of the cylinder 13, and each stopper member 4 is in a flat extended state shown by a phantom line in FIG. It is designed to switch between a contracted state in which it is bent upward into a chevron shape.

Incidentally, as shown in FIG. 4, a spacer 14 having a protrusion 14a that engages with a fitting groove 4f formed therein is detachably attached to the first plate 4a, and the outer end of the second plate 4b A flap plate 15 supported by a guide roller 6a on the base 6 is pivotally connected via a shaft 4g to the support plate 3, the stopper member 4, and the flap plate 1.
5 so that the pit portion 5 is covered over its entire length.

Next, the operation of the above embodiment will be explained.

First, with both stopper members 4, 4 in an extended state, test vehicle W is entered into a running test machine, and the front wheels Wa are placed on rollers 1, 1.
The position of the support plate 3 is adjusted in the longitudinal direction, and the rear wheel Wb is placed on the support plate 3.

Next, both the stopper members 4, 4 are brought into a telescopic state, whereby the first plates 4a, 4a of the two stopper members 4, 4 contact the rear wheel Wb from the front and back, and the rear wheel Wb It is held between the stopper members 4, 4 and fixed at a fixed position. In this case, a spacer 14 of a predetermined thickness is placed on the first plate 4 in advance according to the tire diameter.
a, so that the first plate 4a comes into immediate contact with the rear wheel Wb via the spacer 14.

After the test, both stopper members 4, 4 are returned to the extended state, the rear wheels Wb are released, and the vehicle W is taken out of the running test machine.

(Effects of the Invention) As described above, according to the present invention, it is possible to deal with vehicles with different wheel bases by adjusting the position of the support plate in the longitudinal direction, and the outer end of the second plate of the stopper member can be moved longitudinally. It is possible to fix and release the wheels, and there is no need to attach and detach the stopper members one by one when loading and unloading the vehicle, which has the effect of improving work efficiency.

[Brief explanation of drawings]

Figure 1 shows one of the running test machines equipped with the device of the present invention.
A side view of the example, FIG. 2 is an enlarged plan view of the main part thereof, FIG. 3 is a side view taken along the line -- in FIG. 2, and FIG. 4 is a perspective view of a stopper member and a spacer. 2... Fixing device, 3... Support plate, 4... Stop member, 4a... First plate, 4b... Second plate, 4c
...middle axis, 6...base.

Claims (1)

[Claims] 1. A support plate that supports the non-driving wheels of the tested vehicle is provided on a base so that its position can be adjusted in the front and back direction, and a first plate located on the inside in the front and rear direction, located closer to the support plate, and a A hinge-shaped stopper member is arranged, which is pivotally connected to a second outer plate at an intermediate shaft, and each stopper member is pivotally connected to the support plate at the inner end of the first plate, and The second stopper member of each stopper member
1. A fixing device for a non-driving wheel in a running test machine, characterized in that the outer end of the plate is movable forward and backward toward the support plate.