JPH022742Y2 - - 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 truck 1, a brush roller 11 is provided below the suction port 4 so as to be able to rotate while contacting the artificial lawn A. The brush roller 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 disposed approximately at right angles to the traveling direction of the truck 1. According to this embodiment, the brush roller 11 is
operatively connected to the running wheels 12 of the truck 1;
It is designed to rotate as it moves.
That is, as shown in FIG. 3, a driven gear 13 is fixed to the rotating shaft 11a of the brush roller 11, and a driving gear 14 is meshed with the driven gear 13. An intermediate transmission gear 15 is coaxially fixed to the rotation shaft 14a of the drive gear 14.
A chain 16 is spanned between the wheel and a gear (not shown) provided on the axle of the running wheel 12.
Therefore, when the truck 1 travels to the left in FIG. 2, the brush roller 11 rotates in the opposite direction (clockwise in the diagram). Further, auxiliary brush members 1 are provided on each of the front edge and the rear edge of the trolley 1.
7 and 18 are provided, respectively. Here, the auxiliary brush member 17 on the front edge side is the brush roller 11.
The auxiliary brush member 18 on the trailing edge side is used to level out the sand in the grass grain roughened by the brush roller 11 before the raking operation. Therefore, it does not necessarily have to be chargeable.

In the above configuration, when the cart 1 is moved by the hand handle 2 while the suction means 5 is operated, the auxiliary brush member 17 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 roller 11 rotates as the cart 1 moves and scrapes out powder debris left in the grass grain, and is charged with static electricity due to friction with the artificial lawn A and contact with the suction air flow. Therefore, this brush roller 11
Most of the powder scraps scraped out by the auxiliary brush member 17 on the leading edge side as described above are attracted to the charged brush roller 11, and the amount of the powder debris attached increases. When it reaches a saturated state, the suction port 4 starts from the powder dust on the surface.
and is accommodated in the dust collection chamber 10 via the hose 5. After the powder dust is removed in this way, the sand in the artificial lawn A is removed by the trailing edge side auxiliary brush member 1.
8, the level is adjusted to a substantially uniform level.

In the above embodiment, one brush roller 11 having charging property is provided, but it goes without saying that a plurality of brush rollers may be provided. On the other hand, the auxiliary brush members 17 and 18 are optional and may be omitted if necessary.

[Effects] As is clear from the description of the embodiments described above, according to this invention, the scraping action and electrostatic adsorption action of the brush roller made of a chargeable synthetic resin and the suction action of the suction means are synergistically utilized. Because
Most of the powder debris accumulated in the grass grains is scraped out, and only the powder debris can be efficiently removed, and 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 showing the brush roller and its drive system shown in FIG. 2. 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 roller, and 17 and 18 are auxiliary brush members.

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 trolley is equipped with a suction port formed in the top plate thereof, a suction means connected to the suction port, and rotates while maintaining contact with the artificial lawn surface below the suction port. and at least one brush roller made of a chargeable synthetic resin attached to the inside of the flexible skirt so as to obtain a cleaning device for an artificial turf sports field. (2) In claim (1) of the utility model registration, the brush roller is operatively connected to the running wheels of the trolley and rotates in the opposite direction with respect to the traveling direction of the trolley. Cleaning equipment for lawn athletic fields. (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 movement so as to be able to come into contact with the artificial lawn surface. Cleaning equipment for artificial grass sports stadiums.