JPH022741Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a cleaning device for use in an athletic field made of sand-filled artificial turf, in which the turf grains are filled with sand.

[Technical background of the invention] In sports fields made of artificial grass containing sand, fine debris such as fine debris or nuts, etc. crushed by wind-blown dead branches and leaves trampled, accumulates within the turf grains, causing the playing field to deteriorate. It may seriously damage the appearance of the product. In addition, although the artificial turf itself is made of polyamide and other highly durable synthetic resins, a large amount of fine abrasion debris is generated, especially due to the intense movements of professional athletes and friction with the ball, and the above-mentioned plant debris, etc. It mixes with the grass and accumulates within the grass grain. Therefore, in order to remove these fine powder particles, attempts were made to scrape the powder particles out of the grass with something like a broom and then suck it up with an appropriate suction means. It has been found that in the case of lawns, sand is simultaneously scraped out from within the grass grains, and only the sand is sucked up, so that the essential powder debris may not be removed at all.

[Purpose of the invention] This invention was devised in view of the above-mentioned problems, and its purpose is to provide a simple cleaning structure that can efficiently and almost completely remove the powder debris that has entered the grass. The goal is to provide equipment.

[Example] Hereinafter, this invention will be described in detail with reference to an example shown in the accompanying drawings.

As shown in FIGS. 1 and 2, this cleaning device comprises a trolley 1 that is moved over an artificial lawn A via a hand handle 2. This cart 1 has a box shape with an open bottom surface, and a skirt 3 made of a flexible material such as rubber is provided around the open periphery. A suction port 4 is bored in the top plate of the cart 1, and a suction means 5 is placed thereon, and the suction means 5 is connected to the suction port 4 via a flexible hose 6. ing. In this case, the suction means 5 includes a suction fan 8 that is rotationally driven by, for example, a motor 7, and a dust collection chamber 10 partitioned off by a filter 9 is provided in front of this fan (8).

Inside the cart 1, a brush member 11 is provided below the suction port 4 so as to be able to come into contact with the artificial lawn A. This brush member 11 is made of a synthetic resin material, such as nylon, which has the property of being easily charged with static electricity due to friction, and is arranged approximately at right angles to the traveling direction of the trolley 1. According to this embodiment, the brush member 11 is slidable in the vertical direction along the guide groove 12 formed in the side wall portion 1a of the cart 1, as shown in FIG. , is pressed against the artificial lawn A with an appropriate force by a leaf spring 13. Further, auxiliary brush members 14 and 15 are provided on each of the front and rear edges of the truck 1, respectively. Here, the auxiliary brush member 14 on the leading edge side is used to scrape out powder debris from the grass grain before the raking operation by the brush member 11, and on the other hand, the auxiliary brush member 15 on the trailing edge side Since it is used to adjust the level of sand in the roughened grass, it does not necessarily have to be electrostatic.

In the above configuration, when the trolley 1 is moved by the hand handle 2 while the suction means 5 is operated, the auxiliary brush member 14 on the front edge side scrapes out a certain amount of powder particles in the grass grain, and A part of the dust is carried into the dust collection chamber 10 from the suction port 4 via the hose 6. The brush member 11 is charged with static electricity due to friction with the artificial lawn A generated as the cart 1 moves and contact with the suction air flow.
Therefore, most of the powder scraps scraped out by this brush member 11 and the auxiliary brush member 14 on the leading edge side are adsorbed by this charged brush member 11, and the amount of adhesion increases and becomes saturated. When this happens, powder debris on the surface is sequentially collected into the dust collecting chamber 10 via the suction port 4 and the hose 5. After the powder dust is removed in this way, the sand in the artificial lawn A is adjusted to a substantially uniform level by the subsequent trailing edge side auxiliary brush member 15.

In the above embodiment, one chargeable brush member 11 is provided, but it goes without saying that a plurality of brush members 11 may be provided. On the other hand, the auxiliary brush members 14 and 15 are optional and may be omitted if necessary.

[Effect] As is clear from the description of the above embodiments, according to this invention, the electrostatic adsorption effect of the chargeable brush member and the suction effect of the suction means are used synergistically, so that It is possible to efficiently remove only the target powder waste without suctioning most of the sand.
The effect is remarkable.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the cleaning device according to this invention, Fig. 2 is a vertical sectional view of the same device, and Fig. 3 is a perspective view showing an embodiment of the cleaning device according to the invention.
This figure is a perspective view of the brush member shown in FIG. 2 and the leaf spring member that presses and biases the brush member. In the figure, 1 is a trolley, 2 is a push handle, 3 is a skirt, 4 is a suction port, 6 is a hose, 10 is a dust collection chamber, 11 is a brush member, 13 is a leaf spring, 14, 15
is an auxiliary brush member.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A cleaning device for removing powdered lawn material generated on an artificial lawn surface, which is a box-shaped cleaning device with an open bottom and a flexible skirt around the opening. The cart is provided with a suction port formed in the top plate thereof, a suction means connected to the suction port, and a suction means connected to the suction port, and the above-mentioned movable means connected to the suction port so as to be able to contact the artificial lawn surface below the suction port. 1. A cleaning device for an athletic field made of artificial turf, comprising at least one brush member made of a chargeable synthetic resin attached to the inside of a flexible skirt. (2) In claim (1) for utility model registration, the artificial lawn exerciser is characterized in that the trolley is provided with a spring member that presses and urges the brush member toward the artificial lawn surface. Stadium cleaning equipment. (3) Claim (1) of the utility model registration is characterized in that auxiliary brush members are attached to the front and rear edges of the trolley in the direction of travel so as to be able to contact the surface of the artificial lawn. Cleaning equipment for artificial grass sports stadiums.