JPH0738345Y2 - Sprinkler on course road for driving test - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a sprinkler for a running test course road that secures a certain water film on the road surface during a running test of an automobile.

(Prior Art) Generally, when performing a running test of an automobile, there is a means for performing the test in a wet state where the road surface is wet, in addition to performing the test on a dry road surface.

The latter test is carried out by securing a certain water film on the road surface, making a U-shaped groove along the course road for running test, further providing a weir in the U-shaped groove, and passing the weir to the road surface side. The structure is such that a specified water film can be obtained by flowing water.

(Problems to be solved by the invention) As described above, since the water film is formed by the water passing over the weir, the water film near the weir is thick, and the farther away it is, the thinner the water film becomes. there were. Also,
The road surface is not always flat like a mirror and has irregularities.
In particular, since water does not reach the road surface in the area of the convex portion, it is difficult to obtain a uniform wet state over the entire area, resulting in inaccurate test results. Furthermore, since the water film is a fixed type created by water that passes over the weir, it cannot be used when a wet condition is partially created at a position distant from the weir, and a weir is used when the course is a slope. There was a problem such as not being able to do it.

Then, this invention aims at providing the sprinkler of the new running test course road which solves the said problem.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention is capable of spraying water in a predetermined range on a water supply pipe embedded along a shoulder of a running test course road. A water sprinkling pipe provided with a water sprinkling head is connected and communicated at a predetermined interval, and a space between the water sprinkling head and the water sprinkling pipe is a bendable flexible pipe bent into a predetermined shape.

(Operation) According to such a sprinkler, a substantially uniform water film can be obtained by injecting water from each sprinkling head. In this case, water is always sprayed even on the road surface in the convex region, so that a reliable wet state is secured. In addition, by changing the height and direction of the sprinkling head, it is possible to obtain a wet state of the road surface that meets the conditions of the running test.

(Embodiment) An embodiment of the present invention will be described in detail below with reference to the drawings of FIG. 1 and FIG.

In the figure, reference numeral 1 denotes a running test course road, and a water supply pipe 5 is buried along a shoulder 3 of the course road 1.

Both ends of the water supply pipe 5 are closed by blind lids, and a water guiding pipe 9 extending from a water storage tank 7 is connected to a substantially middle portion. The water in the water storage tank 7 is sent out by a pump (not shown) arranged in the machine room 1 to ensure a prescribed water pressure.

The water supply pipe 5 is connected with a water sprinkling pipe 15 having a water sprinkling head 13 on the upper side, and the water sprinkling pipes 15 are arranged at intervals of about 2 m.
It is possible to water the area near 130m.

A surrounding area to which the sprinkling pipe 15 is connected is surrounded by a box 17 and a sprinkling lever 21 provided on the sprinkling tube 15 by removing the box lid 19
And the valve of the water supply pipe 15 can be opened and closed by operating the water sprinkling lever 21.

The water sprinkling head 13 has a water sprinkling port 23 having a water sprinkling range of approximately 120 degrees, and projects upward from the box lid 19. Further, the watering head 13 is provided with the flexible pipe 25 through which the water supply pipe 13 can be bent.
The sprinkling head 13 can be replaced by connecting and communicating with the flexible tube 15 and loosening the fastening portion 27 with respect to the flexible tube 25. As a result, the sprinkling heads 13 having different sprinkling capacities can be exchanged, and the running test under different conditions can be dealt with.

The flexible tube 25 is wound once to have a play, and this play allows the watering head 13 to be freely adjusted up and down. As a result, the water sprinkling head 13 can be adjusted in the vertical direction and can be swung within a predetermined range.

According to the water sprinkling device configured in this manner, if the direction and height of the water spouting port 23 are properly set according to the state of the road surface of the course road 1, and then water is jetted toward the road surface, almost all areas will be covered. An even wet road condition is obtained.

In particular, the height of the sprinkling port 23 affects the reach and range at the time of sprinkling, and by adjusting the height of the sprinkling head 13, it becomes possible to ensure an accurate sprinkling state corresponding to the width, and it is confirmed by the results of the experiment. Was given.

Further, by replacing the water spray heads 13 having different water spraying capacities, it is possible to obtain the wet state corresponding to the running test conditions.

The sprinkler can also be applied to a straight course or an S-shaped course. In the case of this S-shaped course, the sprinkler device is provided along the outer region of the course that draws an S-shaped curve.

[Effects of the Invention] As described above, according to the sprinkler for a running test course road of the present invention, the structure of the entire device is simplified by the bendable flexible tube, and the direction and height of the sprinkling head are increased. Can be freely adjusted. Therefore, it is possible to optimally position the water spray at the near position and the far position, and it is possible to form a substantially uniform water film corresponding to the width or the test condition. Further, a reliable wet state can be obtained even in the area of the convex portion and the area having the gradient.

[Brief description of drawings]

FIG. 1 is an overall schematic plan view showing a sprinkler of the present invention, and FIG. 2 is an enlarged sectional view taken along the line II-II of FIG. 1 …… Run test course road 2 …… Shoulder 5 …… Water supply pipe 13 …… Sprinkling head 15 …… Sprinkling pipe 25 …… Flexible pipe

Claims (1)

[Scope of utility model registration request] 1. A water supply pipe embedded along a shoulder of a running test course road is connected to a water supply pipe equipped with a water spraying head capable of spraying water in a predetermined range at predetermined intervals so as to communicate with the water spraying head. A sprinkler for a running test course, characterized in that a flexible tube that is bent into a predetermined shape is provided between the water tube and the water tube.