JPS635524B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION An object of the present invention is to provide an artificial lawn cleaning means that can highly efficiently clean artificial lawns that have been used and have been soiled with dirt, dust, etc.

In recent years, artificial turf has been widely used in baseball fields, stadiums, and other large outdoor facilities.In particular, artificial turf used for such purposes is prone to dirt and mud that adheres to users and is brought in from outside. They need to be cleaned frequently because they become dirty due to accumulated wind dust, dirt, and other fine debris. Therefore, we used showers from water removal trucks for road washing,
We are trying to clean the soil using a nozzle connected to a water tap with a long hose, but the mud and dirt is stuck to the roots of the artificial turf, so the shower from a water removal truck cannot provide enough water pressure to wash it off. Furthermore, hose nozzles are inefficient and cannot handle large areas. In addition, since many artificial lawns are laid on flat land, it takes too much time for the mud and dirt that has been painstakingly washed away to flow out of the field, and such filth simply moves on the actual artificial lawn. It's often just that.

This invention was made to solve the above-mentioned problems in artificial lawn cleaning technology, and will be explained below with reference to the illustrated embodiments.

That is, the artificial lawn cleaning device according to the present invention is made up of a water discharging device and a water collecting device as described below. First, in the water spraying device, reference numeral 1 is an endless chain that is looped between sprocket wheels 11 and 12 with an idler wheel 13 interposed therebetween. One sprocket wheel 1
1 is connected to the pulley 21 by an appropriate in-vehicle independent engine or vehicle drive engine.
and a bevel gear 22. The endless chain 1 has a working distance l in a direction perpendicular to the traveling direction of the vehicle, and the working distance is preferably designed to match the width of the working vehicle. Reference numeral 3 denotes water discharge nozzles attached to the endless chain 1 by a chain bracket 14 as shown in FIG. 4.According to the illustrated example, there are two water discharge nozzles, but it is preferable to provide one to four nozzles as necessary. High-pressure water is supplied to the water discharge nozzle 3 through a flexible hose 32 connected to a fixed pivot joint 31 attached to the frame 23 and a movable pivot joint 33 attached to the water discharge nozzle 3. According to the example shown in FIG. 1, this high-pressure water is supplied from a water supply tank (not shown) in a tank car B that is towed by a work vehicle A, through a flexible hose C, and is driven by a small engine D mounted on the vehicle. The water is supplied by the water pump E to the fixed swivel joint 31 through the fixed piping F shown in FIG.

Next, to explain the water collection device, 4
is a suction nozzle connected to the suction device by a pipe 41, and the suction nozzle 4 opens directly below the ground surface into the endless chain 1, and its opening width L corresponds to the operating distance of the endless chain 1. and design. According to the example shown in FIG. 1, the above-mentioned suction device consists of a steam/water separation tank H connected to a vacuum pump G, a pipe 41 of the suction nozzle 4 is connected to the steam/water separation tank H, and suction is drawn from the suction nozzle 4. Water and air are separated in a water separation tank H, and the water is stored in a sewage tank (not shown) inside the tank car B through a flexible hose K by a water pump J.

This invention is constructed as described above, and the water spray nozzle 3 is attached to the endless chain 1, which has an operating distance l in a direction perpendicular to the traveling direction of the vehicle in a plane parallel to the ground surface. As it rotates, the water discharge nozzle 3 rotates together with the endless chain 1, and accordingly reciprocates over the operating distance l. High pressure water is supplied to the water discharge nozzle 3 through a flexible hose 32, but the fixed swivel joint 3
1 and a movable swivel joint 33,
The flexible hose 32 does not get twisted, and even if there are multiple flexible hoses, they do not get entangled, and the water discharge nozzle 3
Exercise together. If you drive the work vehicle slowly,
The trajectory of the jet stream discharged from the discharge nozzle 3 draws a zigzag pattern, and at the same time, the jet stream that hits and spreads onto the artificial turf has a certain width and powerfully cleans the artificial turf surface. If you increase the rotation speed of endless chain 1,
The spacing of the zigzags is reduced, so that with a swath width of the working distance l mentioned above, virtually the entire surface of the artificial lawn can be completely washed away.

Next, according to the invention, there is a water collection device,
This water collecting device is located immediately below the ground surface, at a working distance l of the endless chain 1.
The suction nozzle 4 with a mouth width L corresponding to is opened,
Since this suction nozzle 4 is connected to the suction device, the dirt and other dirt washed away by the jet of the water discharge nozzle 3 of the water discharge device described above is absorbed on the spot together with the discharged water through the suction nozzle 4. There is no uncertainty that the soil, dirt, etc. that have been raised, removed from the surface of the artificial lawn, and painstakingly washed away will simply be washed away by water and moved to another location. According to this invention, the sewage collected together with earth, sand, garbage, etc. can be stored in a sewage tank equipped with a vehicle and then carried out and disposed of outside the site. It is also possible to repeatedly use the separated water as cleaning water.

Thus, according to the present invention, by moving and advancing the work vehicle in an orderly manner, a vast area of the artificial lawn can be thoroughly cleaned with high efficiency, contributing to improved management of the artificial lawn. It's a huge amount.

[Brief explanation of the drawing]

Fig. 1 is a conceptual diagram of a working vehicle equipped with an artificial lawn cleaning device according to the present invention, Fig. 2 is a skeletal diagram of the main parts of an embodiment of the device according to the present invention as seen from the bottom, and Fig. 3 is a similar diagram showing the suction FIG. 4 is a skeletal view seen from the front with the nozzle removed, and a plan view showing the essential parts of the endless chain. 1 is an endless chain, 11 and 12 are sprocket wheels, 13 is an idler wheel, 14 is a chain bracket, 21 is a pulley, 22 is a bevel gear, 23 is a frame, 3 is a water discharge nozzle, 31 is a fixed swivel joint, and 32 is a flexible Flexible hose, 33 is a movable swivel joint, 4 is a suction nozzle, 41 is a pipe opening, A is a work vehicle, B is a tank truck, C is a flexible hose, D is a small engine, E is a high pressure water pump, F is fixed piping, G
is a vacuum pump, H is a steam/water separation tank, J is a water pump, K is a flexible hose, l is an operating distance, and L is a mouth width.

Claims (1)

[Claims] 1 A fixed swivel joint 31 is attached to a water discharge nozzle 3 attached to an endless chain 1 that rotates with a working distance l in a direction perpendicular to the traveling direction of the working vehicle in a plane parallel to the ground surface by the power installed in the working vehicle. , a water discharge device that supplies high-pressure water through a flexible hose 32 and a movable swivel joint 33 fixed to the water discharge nozzle 3, and a suction nozzle 4 having a mouth width L corresponding to the operating distance l of the endless chain 1 and connected to a suction device. This artificial lawn cleaning device is made by combining an endless chain 1 with a water collection device that opens immediately below the ground surface.