JPH0380201B2 - - Google Patents

Description

[Detailed description of the invention]

(Industrial Application Field) The present invention relates to a granular material dispersing device for dispersing granular material such as sand into the leaves of artificial turf. (Prior Art) Conventionally, devices for dispersing granules onto artificial turf have been designed to raise the leaves of artificial turf by sliding a brush on the artificial turf, which is arranged so as to cross the direction of movement of a trolley. By spraying the granules from above the brush, the granules were filled into the grass leaves. (Problem to be Solved by the Invention) However, in the above-mentioned conventional spraying device, the grass leaves are forced to stand up with the brush, so the repulsive force acting on the brush knocks off the granules, causing the particles to be sprayed. There was a problem that the granules were not uniformly filled into the grass blades. (Means for Solving the Problems) The granule dispersing device of the present invention includes a hopper that is provided on the top of a cart that moves on artificial turf and stores the granules, and a hopper that is provided below the hopper and that is disposed of from the hopper. A belt conveyor that conveys the granular material to be discharged to the rear of the cart, and two rotating shafts below the conveying end of the belt conveyor that are substantially horizontally spaced apart from each other by a predetermined distance in a direction that intersects the moving direction of the cart. and an endless chain is wound between at least both ends of the two rotating shafts, and a plurality of blades are arranged on a connecting member arranged at a predetermined interval between the endless chains, The plurality of blades are provided with a rotating member rotatable in the running direction of the cart or in the opposite direction to the running direction between the two rotating shafts so that the blades of the artificial turf are erected. (Function) By rotating a plurality of blades between two rotating shafts, the leaves of artificial turf are made to stand up, and the granules scattered on a rotating member having a plurality of blades move the rotating member. It passes through and is filled into the erected grass blades. (Example) Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 1 shows a schematic configuration of a granular material dispersing device of the present invention. Reference numeral 1 denotes a cart, and a hopper 3 for storing granular materials 2 such as sand to be spread on the artificial turf 7 is placed on the upper part of the cart 1, and the granular materials 2 such as sand in the hopper 3 are In addition, it is composed of a single substance or a mixture of inorganic particles such as slag, or organic particles such as rubber, plastic, and wood flour, and is discharged to a belt conveyor 5 provided below the hopper 3. is being done. The belt conveyor 5 rotates counterclockwise in FIG. 1 and conveys the granular material 2 to the rear of the truck 1.
A rotating brush 6 is provided near the end of the belt conveyor 5 on the conveying side, and the rotating brush 6 rotates in the opposite direction to the rotation of the belt conveyor 5 to remove the granules 2 conveyed to the end of the belt conveyor 5. The artificial grass 7 is uniformly sprayed. The belt conveyor 5 and the rotating brush 6 are operatively connected to a drive shaft 23 driven by an engine (not shown) mounted on the truck 1. A rotating member 10 is provided below the conveyance end of the belt conveyor 5 on which the granular material 2 falls behind the truck 1, and is configured to move together with the truck 1. 2 through 4 show the rotating member 10. FIG. A frame 12 provided at the rear of the truck 1 via a traction arm 11 has two first rotation shafts 13 and a second rotation shaft 14 pivoted in parallel and intersecting with the moving direction of the truck 1. ing. The traction arms 11 are provided symmetrically on both sides of the frame 12. As shown in FIG. 1, a sprocket 25 is provided at one end of the second rotating shaft 14, and the sprocket 25 and a sprocket 26 provided at the rear of the truck 1 are connected to each other by a chain belt 27. It's being passed around. Furthermore, the sprocket 26 is connected to the drive shaft 23 via a forward/reverse box 21 and a belt transmission 22 by a chain or a belt made of rubber or the like. In addition, the first rotating shaft 13
Sprockets 15a are provided at both ends and the center of the second rotating shaft 14, and sprockets 15b are also provided at both ends and the center of the second rotating shaft 14 so as to face the sprockets 15a. chain belt (endless chain) 16
are wrapped around each other. A plurality of attachments (connecting members) 17 are fixed to the upper surface of each of the three wound chain belts 16 so as to span between the three chain belts 16. The attachments 17..., like the first and second rotating shafts 13 and 14, are arranged parallel to each other and intersect with the moving direction of the truck 1, and spaced at equal intervals.
Further, a plurality of blades 18 are attached to the attachments 17 so as to intersect with the moving direction of the truck 1. In the illustrated example, three blades 18 are attached at intervals to one attachment 17, and in order to eliminate uneven contact with the grass blades 8 when the blades 18 rotate, three blades 18 are attached to each attachment 17. The mounting positions of the blades 18 are sequentially shifted. These blades 18...
is a second rotating shaft 14 connected to the drive shaft 23;
As the blade rotates, it is rotated between the first rotation shaft 13 and the second rotation shaft 14, and this rotation causes the grass blades 8 of the artificial grass 7 to stand up.
It is made of synthetic resin that is stronger and more elastic. Therefore, the plurality of blades 18..., attachments 17..., chain belt 16..., sprockets 15a..., 15b..., first and second rotating shafts 1
3, 14, and the frame 12 form a rotating member 10. The support rollers 19 support the rotating member 10 at an appropriate height from the ground surface, and are provided at each of the four corners of the frame 12 so that the height can be adjusted. Reference numeral 30 denotes a lever for lifting the rotating member 10 upward. This lever 30 is connected to the traction arm 11 via a connecting member 31, and by pulling the lever 30 toward the front side of the truck 1, the rotating member 10 is lifted upward. It is designed to form a gap between it and the ground surface, and is used when moving a cart that does not scatter the granular material 2. 32 is a handle for controlling the moving direction of the trolley 1, and an accelerator, a brake lever, etc. (not shown) are attached to this handle 32, and
A tire 33 is connected to the lower end of the handle 32. Reference numeral 35 denotes tires provided on both sides of the truck 1. The tires 35 are connected to the drive shaft 23 via a transmission (not shown), and the drive shaft 23 rotates the tires and moves the truck 1. As a result, wrinkles that occur on the artificial grass 7 during travel are reduced compared to the drive rollers conventionally used as a means of moving the trolley 1. That is,
The granular material 2 can be spread more uniformly. Further, 36 is a spring that absorbs vibrations generated due to unevenness of the artificial turf surface when the cart 1 is moving, and 37 is a chain belt cover. Note that the blade 18 forming the rotating member 10
..., the number and shape of the attachments 17, etc. are not limited. Next, the operation of the granular material dispersing device of the present invention will be explained. The granular material 2 discharged from the hopper 3 to the belt conveyor 5 is conveyed to the rear of the cart 1 by the belt conveyor 5, is uniformly dispersed by the rotating brush 6, and falls onto the rotating member 10 located below.
Here, in the case of so-called sequential running in which the cart 1 is run in the direction in which the grass blades 8 fall (in the direction of the arrow P), the rotational direction of the blades 18 is the same as the running direction of the cart, and the rotation speed thereof is It is preferable that the speed is relatively faster than the traveling speed of the truck 1 by about 10% or more. On the other hand, in the case of so-called reverse running in which the trolley 1 runs in the opposite direction to the direction in which the grass blades 8 have fallen (in the direction of the arrow Q), the rotation direction of the blades 18 is opposite to or the same direction as the running direction of the trolley. It is preferable that the rotation speed is slower than the traveling speed of the trolley 1. In this manner, the rotational direction and rotational speed of the blades 18 are appropriately selected depending on the degree of fall of the grass blades 8. Then, when the front edge of each blade 18 and the grass blade 8 come into contact with each other, the grass blade 8 tilted to the right side stands up. Blade 18... is each attachment 17
Since the mounting position is sequentially shifted for each blade, the contact area between the blades 18 and the grass blades 8 is large, and the dispersed granules 2 can easily enter deep into the grass blades 8, so that the inside of the rotating member 10 is The granular material 2 that has passed enters deep into the grass blades 8 and is evenly filled therein. As shown in FIG.
... in the direction of arrow R, and the distance between the front end of the blade 18 ... located below and the base fabric of the artificial grass 7 is 6
9 mm, the trolley 1 was run in the direction of arrow P or the direction of arrow Q, and granular material was scattered. Here, the rotating members used are as follows. Number of blades: 30 (same arrangement as this example) Diameter (D): 200mmφ Effective width: 1000mm

[Table] Here, high-density grass refers to 3000D (denier) PP.
Split yarn 50 times/m twisted on PP base fabric
It is planted using a tufting machine so that 6.4 strands are distributed vertically and 6.4 strands horizontally per 2.54cm x 2.54cm, and the length is 20mm. 2.54 on PP base fabric
The plants were planted using a tufting machine so that 6.4 vertically and 3.2 horizontally were distributed per cm x 2.54 cm, and the length was 20 mm. Note that general grass is generally used for artificial grass such as tennis courts. As can be seen from this table, spraying on general grass can be carried out in almost good condition, and spraying on high-density grass can also be done by changing the running speed of cart 1 and the circumferential speed of rotating members 10 (circumferential speed of blades 18...). ) by adjusting the relationship between In this way, the direction of rotation of the blades 18 is controlled by the forward/reverse box 21 so that the blades 8 of the artificial grass 7 tilted in a certain direction are erected, and the rotational direction of the blades 18 is controlled by the forward/reverse box 21.
The circumferential speed of ... is controlled as needed by the belt transmission 22 and the transmission, and the machine is operated in an optimal state so that the spread granules 2 are easily filled into the grass blades 8. In addition, the dispersion capacity of conventional granule dispersion equipment is approximately
500m ² /h, the granular material spreading device of the present invention
With a capacity of 1000m ² /h, spraying work can be done quickly. Traditional spraying operations are time-consuming;
There were cases where it rained during the work, and once it rained, there was a problem that the work could not be done until the grass leaves 8 and the granules 2 were completely dry. Since the work can be done quickly, the above problems can be avoided. Furthermore, even if the scattered granules 2 cause a bridging phenomenon within the turf blades 8 when filling the turf leaves 8 with the granules 2, the continuous rotation of the plurality of blades 18 will fill the turf leaves. 8 is constantly vibrated, making it possible to eliminate the bridging phenomenon. Note that the granules 2 are not sprayed on the artificial grass 7 all at once; for example, the amount of granules 2 filled into the grass blades 8 in one spraying is about 3 mm, and this is repeated several times. It is preferable to do so. Also, blade 1
It is preferable that the rotating height of the rollers 8 be gradually lowered as the support roller 19 is filled with the granular material 2. (Effects of the Invention) As described above, the granular material dispersing device of the present invention uses a plurality of blades to
The contact area between the blade and the artificial turf leaves is increased, and the turf leaves can be raised over a wide range so that the granules to be sprayed can easily penetrate deep into the grass.
Compared to the conventional method, the ability to spread granules per hour is improved, and the time required for spraying work can be shortened. Furthermore, since the blades are vibrated by the continuous rotation of the plurality of blades, the granules can be reliably inserted deep into the turf blades, and the granules can be filled more uniformly.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram showing an outline of the granular material dispersing device of the present invention, Fig. 2 is a perspective view showing a rotating member, Fig. 3 is a partially omitted plan view showing the rotating member, and Fig. 4 is a rotating member. FIG. 1... Cart, 2... Granular body, 3... Hopper,
5... Belt conveyor, 7... Artificial grass, 8... Grass leaves, 10... Rotating member, 13... First rotating shaft, 1
4... Second rotating shaft, 16... Chain belt (endless chain), 17... Attachment (connecting member), 1
8...Blade.

Claims (1)

[Claims] 1. Provided on the upper part of a trolley that moves on artificial turf,
A hopper for storing granular material; a belt conveyor provided below the hopper for conveying the granular material discharged from the hopper to the rear of the cart; and two rotating shafts located below the conveying end of the belt conveyor. are supported substantially horizontally in a direction intersecting the moving direction of the two rotating shafts at a predetermined interval, and endless chains are wound between at least both ends of the two rotating shafts, and a predetermined interval is provided between the endless chains. A plurality of blades are arranged on a connecting member placed apart from each other, and the plurality of blades rotate in the running direction of the trolley or opposite to the running direction between the two rotating shafts so as to make the artificial grass blades stand up. A granular material dispersing device comprising: a rotating member rotatable in any direction.