JPH0245731B2 - SUNAIRIJINKOSHIBAFUSEIUNDOKYOGIJOYOSEISOSOCHI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cleaning device suitable for collecting debris such as fallen leaves scattered on a sports field such as a tennis court made of artificial grass containing sand.

An artificial lawn with sand is an artificial lawn made by planting flat pile threads made from synthetic resins such as polyamide, polyurethane, vinylidene chloride, and polypropylene into a backing fabric. It is filled thickly and is advantageous in terms of maintenance compared to natural grass. It also closely resembles the characteristics of natural grass and is evergreen, so it is preferable both in terms of characteristics and aesthetics. For these reasons, artificial turf with sand has been applied to various athletic fields including tennis courts. Fallen leaves are often scattered on the surface, which spoils the beauty of the area, and if leaves are left as they are, they will gradually rot and become difficult to clean, and rotten leaves can be extremely slippery. , which can be dangerous to exercise in and must be cleaned frequently.

This invention was made in view of the above circumstances,
The purpose is to provide a cleaning device that can easily collect debris such as fallen leaves scattered on a sand-containing artificial lawn.

Hereinafter, the present invention will be described in detail with reference to an embodiment shown in the accompanying drawings.

As shown in FIG. 1, this cleaning device has a casing 2 that runs on wheels 3 over an artificial lawn 1 containing sand. In addition, in the figure, the dry sand filled in the grass grains of the artificial lawn 1 is represented by a satin pattern. In this embodiment, the casing 2 has a garbage intake port 4 opened toward the artificial lawn 1 at its front bottom, and the garbage intake port 4 is used to store fallen leaves and the like scattered on the artificial lawn 1. A rotary brush device 5 for collecting dirt is preferably provided, the height of which is adjustable. In this embodiment, the rotating brush device 5 is operatively connected to, for example, a running wheel 3 of the casing 2 via a chain (not shown), and the rotating brush device 5 is operatively connected to a running wheel 3 of the casing 2 via a chain (not shown). 1 rotation brush 5
a, and an auxiliary second rotating brush 5b which is rotated in the opposite direction to the forward direction of the rotating brush 5a and arranged so that the brushes overlap each other to some extent. That is, the traveling direction of the casing 2 is
In the right direction in the drawing, the first rotating brush 5a is rotated counterclockwise, and the second rotating brush 5b is rotationally driven clockwise. Incidentally, in order to improve the garbage collection efficiency, the brushes 6 of the first rotating brush 5a are arranged in a spiral shape with respect to the rotating shaft 7, as shown in FIG. 2, in the same manner as the screw auger. Further, a hopper chamber 8 is formed in the casing 2 to store the dust collected from the dust intake port 4 by the rotary brush device 5. In connection with this hopper chamber 8, an opening 10 is bored in the bottom of the casing 2. This bottom opening 1
0 is provided with a sieve means consisting of a wire mesh 9 of about 5 mm square, for example, and the dry sand collected from the grass grains of the artificial lawn 1 along with the garbage is allowed to fall onto the artificial lawn 1 through the wire mesh 9. That's what I do. Furthermore, an intake duct 11 is provided inside the casing 2. As illustrated in FIG. 1, this intake duct 11 is formed along the inner surface of the upper wall of the casing 2 from the part facing the dust intake port 4, and a dustproof filter 1 is provided at the tip facing the dust intake port 4.
A suction fan 14 driven by a motor (not shown) or the like is provided on the exhaust cylinder section 13 on the rear end side. In addition, reference numeral 15
1 is a handle for operating the casing 2, and 16 is a lid for removing dust attached to the rear wall of the casing 2. Further, this cleaning device is actually self-propelled and is equipped with a drive source such as a motor (not shown) for driving the wheels 3.

In the above configuration, after adjusting the rotary brush device 5 to a predetermined height, a switch (not shown) for running and a switch (not shown) for a fan are turned on, respectively, and the wheels 3 and the suction fan 14 are put into operation and the casing 2 is turned on. For example, when the brush moves toward the right in FIG. 1, the first rotating brush 5a moves as described above.
is rotationally driven in the counterclockwise direction in the figure, and the second rotating brush 5b is rotationally driven in the clockwise direction. Therefore, the debris such as fallen leaves scattered on the artificial lawn 1 is scraped up by the first rotating brush 5a and the second rotating brush 5b, and the debris that is scraped up and entered into the casing 2 is removed. is separated from these rotating brushes 5a and 5b by the suction action of the suction fan 14, and is efficiently collected into the hopper chamber 8. At that time, the sand filled in the grass grains of the artificial lawn 1 may also be collected at the same time, but the fine sand passes through the wire mesh 9 into the casing 2.
Since the sand is sieved onto the artificial lawn 1 from the bottom opening 10 of the sand-containing artificial lawn 1, there is no risk that the sand in the sand-containing artificial lawn 1 will be reduced or that its characteristics will be changed. Note that, if necessary, a vibrator may be attached to the wire mesh 9 to forcibly sieve the sand from the hopper chamber 8.
Then, the garbage accumulated in the hopper chamber 8 is removed from the lid 1.
By opening 2, it is taken out, for example, to a predetermined dumping location.

In the above embodiment, the first and second rotating brushes 5a and 5b are connected to the running wheels 3 and driven to rotate, but they may also be directly driven to rotate by a self-propelled drive source. Of course it's a good thing.

As is clear from the description of the embodiments described above, the present invention includes a casing 2 that runs on wheels 3 over a sand-containing artificial lawn 1, and the casing 2 includes:
It has a dust intake port 4, a rotary brush device 5 for collecting dust attached to the dust intake port 4, a brush driving means for rotating the rotary brush device 5, a dustproof filter 12 at the tip, and a suction filter at the rear end. an intake duct 11 equipped with a fan 14 and installed so that its tip faces the dust intake port 4;
It is characterized by being provided with a hopper chamber 8 for storing the garbage collected from the garbage intake port 4, and a sieve means consisting of a wire mesh 9 or the like disposed in the bottom opening 10 of the hopper chamber 8. Due to the raking action of the brush device 5 and the suction action of the suction fan 14, debris such as fallen leaves scattered on the artificial lawn 1 can be easily collected without any effort.

[Brief explanation of drawings]

FIG. 1 is a schematic sectional view showing an embodiment of the present invention, and FIG. 2 is a perspective view of a rotating brush used in this device. In the diagram, 1 is artificial grass with sand, 2 is casing,
3 is a wheel, 4 is a dust intake port, 5 is a rotating brush device, 5a is a first rotating brush, 5b is a second rotating brush, 6 is a brush, 7 is a rotating shaft, 8 is a hopper chamber, 9
is a wire mesh, 10 is a bottom opening, 11 is an intake duct, 1
2 is a dustproof filter, and 14 is a suction fan.

Claims (1)

[Scope of Claims] 1. A cleaning device for collecting debris such as fallen leaves scattered at an athletic competition scene, which is formed by filling the grain of an artificial lawn with dry sand to a predetermined thickness, which comprises: The casing includes a wheeled casing that runs on the lawn, and the casing includes a garbage intake port opened toward the artificial lawn at the front bottom, and a rotating brush device for garbage collection attached to the garbage intake port. A brush driving means for rotating the rotary brush device, a tip opening installed above the rotary brush device and facing the dirt intake port, and a rear end opening connected to an intake duct opened to the outside from the casing; A dust filter attached to the tip opening of the intake duct, a suction fan provided inside the rear of the intake duct, a hopper chamber for storing garbage collected from the garbage intake port, and a bottom portion of the hopper chamber. A sieve means made of a wire mesh or the like, which is arranged to cover a bottom opening, and which discharges the sucked dry sand from the bottom opening. Cleaning equipment. 2. The rotating brush device includes a first rotating brush that is driven to rotate in the opposite direction to the traveling direction of the casing, and a second rotating brush that is rotationally driven in the same direction as the traveling direction while being slightly in contact with the first rotating brush. The cleaning device for an athletic field made of sand-containing artificial grass according to claim 1, characterized in that it comprises a rotating brush.