JP2545335Y2 - Artificial turf washing car - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum suction type cleaning car used for cleaning dirt, dust and the like on a stretched artificial turf.

[0002]

2. Description of the Related Art In recent years, a large area of artificial turf has been installed in many facilities of a stadium, and competitions and various events are held thereon. Here, the artificial turf is one in which a pile is planted in a base cloth, and such artificial turf is simply placed and stretched on the ground or the floor surface, or when the artificial turf is stretched on the ground, floor surface or under pad. When it is fixedly stretched over the entire surface, it may be fixed in an intermediate portion.

Conventionally, when cleaning artificial turf surfaces, general-purpose cleaning vehicles and cleaning vehicles that can be used besides artificial turf have been used. The former is based on the principle of a vacuum cleaner and sucks dust together with air.The latter sprays water continuously from a nozzle to wash off dirt sticking to artificial turf while simultaneously reflecting reflected sewage on the nozzle side. A method of collecting in a hood provided in the section is adopted.

Japanese Utility Model Laid-Open Publication No. 63-9317 discloses an apparatus having the advantages of the above two methods, which is open downward to the surface of artificial turf and has a plurality of nozzles for spraying a cleaning liquid therein. The air is sucked from a gap between a collar provided around the opening of the hood and the artificial turf, and the cleaning liquid ejected from the nozzle is collected together with the dust along with the suction air. Cleaning suction vehicles have been proposed. In this washing car, the hood is configured such that a predetermined contact is made to the artificial turf surface by its own weight and the pressure in the hood by its flange, and the amount of air sucked through the gap is determined by this contact.

[0005]

However, the general-purpose cleaning car is not suitable for removing dirt attached to artificial turf. Further, in the washing vehicle, even if a method of recovering water and reusing it is adopted, for example, a large-capacity water tank must be mounted on the washing vehicle because the washing water collection efficiency is low. There's a problem. In addition, since a relatively large amount of water remains on the artificial turf surface after cleaning, it takes a long time to dry the turf in the above-mentioned washing car, and there is also a problem that dirt is reattached after drying.

On the other hand, in the washing and suctioning vehicle disclosed in Japanese Utility Model Laid-Open Publication No. 63-9317, the amount of air sucked through the gap between the flange and the artificial turf is kept substantially constant around the flange. . However, as will be described later, dust discharged along with the air introduced into the hood from the gap is generated by the hood.
Before and after the traveling direction of the road. That is, in the front of the traveling direction, the introduced air only discharges mainly foreign substances such as dust and dirt like a vacuum cleaner because the grass is not wet yet, but behind the traveling direction of the hood, It is required to discharge a cleaning liquid containing dirt in addition to wet dirt and dust. Then, in order to efficiently collect the cleaning liquid from the grass wet with the cleaning liquid containing the dirt, it is necessary to introduce a large amount of air so as to blow up from the lower surface of the cleaning liquid to float and scatter the cleaning liquid. . However, the above-mentioned washing and suction vehicle is not a structure suitable for finely adjusting the amount of introduced air in the front-back direction of the hood.

Further, in the conventional cleaning and suction vehicle, if the supply of the cleaning liquid is increased due to heavy dirt, the cleaning liquid blocks the gap between the collar and the artificial turf behind the running direction of the hood. Although the suction and removal of foreign matter is good, there is a disadvantage that the recovery of the cleaning liquid at the rear is reduced.

Further, in the conventional cleaning / suction vehicle, if the total suction air amount is increased in proportion to the amount of dust, a strong negative pressure is generated in the hood. In the case of artificial turf that has only been removed or partially fixed, there is also a disadvantage that the turf is lifted and sticks to the tsuba.

In view of the above circumstances, the present inventor has conducted intensive studies on the structure of the hood in the artificial turf washing vehicle and the direction of the amount of air to be introduced into the hood. The present inventors have found that if the cleaning liquid is blown up by increasing the number of cleaning liquids, it is possible to efficiently remove dust and recover the cleaning liquid.

[0010]

That is, the present invention is a washing vehicle for washing a stretched artificial turf, which is opened downward, a suction pipe is connected to an upper part, and a collar is provided around the opening. Having a hood, a plurality of nozzles for jetting cleaning liquid disposed downward in the hood, air sucked by a suction pipe,
A separating device for separating a mixture of cleaning liquid and dust, adjusting means for adjusting an amount of air sucked by a suction pipe through a gap between the flange and the artificial turf before and after in a traveling direction, and the flange and the artificial turf; And a gap securing means for securing a gap between the two.

In the present invention, as the cleaning liquid, water or water containing a neutral detergent is preferably used. The use of detergent water is advantageous for cleaning dirt on artificial turf because the chemical cleaning effect of the detergent can be used in addition to the physical cleaning effect of the cleaning liquid sprayed from the nozzle. However, when the turf is washed with high-concentration detergent water for the reason that the dirt is particularly severe, it is preferable to remove the unrecovered detergent water by performing a water washing corresponding to a rinsing step in the washing following the detergent water washing. . Further, according to a washing vehicle in which a separation device, a water tank, a pump, and the like are provided for two lines for water and detergent water, and hoods corresponding to each line are arranged in two rows in the traveling direction, the detergent water is used. Washing and water washing can be performed in one cleaning operation.

The space in the present invention refers to the space between the lower surface of the flange and the ground surface of the artificial turf.

[0013] It is preferable that the flange is formed so as to have a gradient upward at the outer edge so that the collar can move smoothly on the artificial turf. Further, the flange does not need to be disposed in the left-right direction of the hood, which is a direction perpendicular to the traveling direction, and instead, a plate member that closes a gap in the left-right direction may be attached to the side wall of the hood.

[0014] It is preferable that a large number of nozzles for injecting the cleaning liquid are arranged in the upper part in the hood and at the center in the running direction so as to be orthogonal to the running direction of the washing vehicle. One example of providing such a nozzle arrangement is a straight tubular nozzle tube provided with a number of holes as nozzles as shown in the embodiment. This nozzle tube can be arranged with holes for multiple nozzles at equal horizontal positions perpendicular to the running direction of the washing vehicle.

The supply of the cleaning liquid from the nozzle is performed not by simply wetting the artificial turf but by tapping the turf with the high-speed cleaning liquid. This is because the high-speed cleaning liquid promotes the removal of dirt attached to the turf. Therefore, the nozzle was driven by a high-speed cleaning liquid having a width (indicated by D in FIG. 5) of 芝 to の the opening length of the turf under the hood in the running direction (indicated by L in FIG. 5). They should be arranged with some spacing or directionality so that they can be skipped. In order to inject such a high-speed of the cleaning liquid from the nozzle, depending on the shape of the nozzle, the discharge pressure of the pump is set to 5 kg / cm ² to 50 kg / cm ² approximately.

The suction pipe is connected to an upper front part and a rear upper part in the running direction of the hood so that dust and cleaning liquid can be efficiently collected along with air introduced into the hood from the gap. Is preferred.

The adjusting means may be any as long as it can adjust the amount of air sucked by the suction pipe through the gap between the flange and the artificial turf before and after in the traveling direction. Is provided. In addition, the adjustment of the air amount can be performed not only by adjusting the clearance, but also by changing the length of the flange. In one example of the present invention, the adjusting means may be embodied with wheels, but if it is hard to damage the turf during traveling, it may be a member such as a roller or a sled other than the wheels. You may. It is preferable to provide two to four wheels for supporting the hood in the traveling direction.

In the present invention, a gap securing means for securing a gap between the collar and the artificial turf is further provided. If this gap securing means is provided, even if the turf is simply stretched or partially fixed on the ground or floor surface, the turf is lifted by the strong negative pressure in the hood and sticks to the collar. Can be prevented. The air gap securing means does not significantly impede the flow of air through the air gap, and secures a minimum air gap even if the grass is raised. It is also particularly preferred that it is also configured such that the pile of artificial turf does not block the voids. As one example of the gap securing means, a round bar having a comb structure and having a diameter of 6 mm to 10 mm and having a rounded tip in contact with the turf is provided on a flat plate provided with a long hole for position adjustment at a constant interval. It can be shown mounted in parallel. The certain interval in this case is a value that does not hinder the flow of the air much and does not reduce the gap in the raised turf, and is generally about 10 mm to 100 mm. Further, the gap securing means may be provided on the flange in the form of a recess, and in terms of dimensions, the dimensions of the corresponding parts of the comb structure may be the groove dimensions.

[0019]

According to the artificial turf washing vehicle of the present invention, the cleaning liquid is sprayed from the nozzle toward the artificial turf surface in the hood. By this injection, dirt and the like on the artificial turf surface are blown up together with the cleaning liquid by the suction air into the hood adjusted by the adjusting means, and a mixture of the blown-up air, the cleaning liquid and the dust is sucked by the suction pipe to be separated by the separation device. It is led to. The separation device separates the air, the cleaning liquid and the dust.

Hereinafter, the present invention will be described in detail based on a specific example shown in the drawings. The present invention is not limited to these specific examples.

[0021]

1 to 4 show an artificial turf 1 stretched over.
The washing car 2 of this embodiment for cleaning the hood 5 has an opening 3 at the bottom, and a hood 5 to which a plurality of suction pipes 4 in this example are connected at the top.
And a nozzle 7 for spraying a cleaning liquid having a large number of holes disposed in the hood 5 in a downward direction on the nozzle pipe 6, and a separation device 8 for separating a mixture of air, cleaning liquid and dust sucked by the suction pipe 4. The hood 5 is provided with a collar 9 around the opening 3.
And an adjusting means 11 for adjusting the amount of air sucked by the suction pipe 4 through the gap 10 between the collar 9 and the artificial turf 1 in the running direction, that is, in the A direction.

The hood 5 of this embodiment is formed in a box shape having an opening 3 below, and the suction effect of the suction pipe 4 is provided at portions 15, 16, 17 and 18 around the suction pipe 4 in the ceiling. In order to improve the shape, it is formed in a substantially square pyramid shape.
In the present example, the flange 9 is formed so as to have a gradient upward at the outer edge portion 19, and is also provided in the left and right direction of the hood 5 orthogonal to the A direction. The hood 5 is rotatably connected to one end of a pair of arms 22 via shafts 20 and 21, and the other end of the arm 22 is connected to shafts 23 and 2.
4 and is rotatably attached to the rear portion of the vehicle body 25 via the motor. A hoist 26 is mounted on the vehicle body 25,
The tip of the winding wire 27 is connected to the hood 5, and the hood 5 is pulled up by the hoist 26 when not in use.

The nozzle tube 6 whose one end 29 is closed is attached to an accommodation recess 30 formed in the ceiling of the hood 5 so as to extend perpendicular to the direction A, via an appropriate attachment member (not shown). The other end 31 is disposed outside through the side wall of the hood 5.

The adjusting means 11 of this embodiment is provided in a pair at each of the front and rear sides in the direction A. Each of the adjusting means 11 is attached to a bracket 42 having a long hole 41 extending vertically and a lower surface of the bracket 42. A wheel support member 43 and a wheel 45 rotatably supported by the wheel support member 43 via a shaft 44 are provided. The bracket 42 is attached to a side wall of the hood 5 by a bolt 46 inserted into the long hole 41. I have. In the adjusting means 11 of the present embodiment thus formed, the bolt 46 is once loosened to newly shift the position of the bracket 42 with respect to the hood 5 upward or downward as desired, and then the bolt 46 is tightened again to tighten the bracket. 42
Is fixed to the hood 5 and the distance of the gap 10 is set, whereby the amount of air sucked by the suction pipe 4 through the gap 10 is adjusted before and after in the A direction.

The separating device 8 mounted on the vehicle body 25 includes a gas-liquid separating device 51 made of, for example, a cyclone, and a liquid-solid separating device 5 made of, for example, a wire net 52 mounted at an angle.
3 is provided. The gas-liquid separation device 51 connected to each of the suction pipes 4 via the flexible pipes 54 separates only air from a mixture of the air supplied from the suction pipe 4, the collected cleaning liquid and the dust, and performs liquid-solid separation. The device 53 separates the solid foreign matter such as dust from the gas-liquid separator 51 connected thereto and the cleaning liquid, and discharges the solid foreign matter such as dust to the container 55 and the cleaning liquid to the tank 56, respectively.

The tank 56 is connected to a pump 61. The pump 61 is connected to the other end 31 of the nozzle pipe 6 via a flexible pipe 62, and pressurizes the cleaning liquid from the tank 56 and supplies the cleaning liquid to the nozzle 7. . The gas-liquid separator 51 is connected to an exhaust device 66 such as a blower and a fan via an exhaust pipe 65. The exhaust device 66 sucks air from the gas-liquid separator 51 and passes it through a muffler 67. Discharge to the outside. A connecting member 68 is attached to a front portion of the vehicle body 25, and the vehicle body 25 is connected to a towing vehicle (not shown) disposed forward through the connecting member 68 and travels forward.

The artificial turf washing vehicle 2 formed as described above operates as follows. When the wire 27 is fed out from the hoist 26, the hood 5 is lowered by its own weight and
5 contacts the artificial turf 1 surface. Next, by operating the pump 61,
First, the cleaning liquid in the tank 56 is supplied to the nozzle 7 through the pipe 62 and the nozzle pipe 6, and as shown in FIG.
The cleaning liquid is ejected from the nozzle 7 toward the surface of the artificial turf 1, and the injected cleaning liquid raises dirt such as dust on the surface of the artificial turf 1. And the outside air is
Flows into the space 72 through the gap 10, and the inflow air 73 blows up the cleaning liquid injected into the space 72 and the dust raised by the cleaning liquid, and entrains the cleaning liquid thus blown up and the dust raised by the cleaning liquid. It is sucked by the suction pipe 4 and further guided to the separation device 8. At this time, the inflow air 73 is placed in a dry suction state in which the turf is not wet yet in the forward direction of the hood 5 so that foreign substances such as dust and dirt are mainly discharged together with the vacuum cleaner. is there. On the other hand, the rear of the hood 5 in the traveling direction is in a wet suction state, and the inflow air 73 is required to efficiently collect dust together with the cleaning liquid from turf wet with the cleaning liquid. Naturally, it is preferable that the amounts of the inflow air 73 of both are not the same but are adjusted respectively differently. The separation device 8 first separates air from the mixture of the air, the cleaning liquid, and the dust sucked by the suction pipe 4 with the gas-liquid separation device 51,
Next, the cleaning liquid and the dust from the gas-liquid separation device 51 are separated by the liquid-solid separation device 53. The separated air is discharged to the outside via the silencer 67, the cleaning liquid is collected in the tank 56 and reused, and the dust is stored in the container 55 and later taken out and subjected to disposal such as incineration.

By the way, in the above-mentioned artificial turf washing car 2, the bolt 46 is loosened, the vertical position of the bracket 42 with respect to the hood 5 is changed, and the bolt 46 is tightened again at that position, so that the vertical distance of the gap 10 is increased. Since H can be adjusted, for example, the interval H of the gap 10 at the rear of the traveling direction of the hood 5 is made larger than the interval H at the front,
If the amount of air sucked through the gap 10 behind the hood 5 is made larger than that in front of the hood 5 and the cleaning liquid is blown up more by the inflow air 73 at the rear, efficient removal of dust and recovery of the cleaning liquid can be achieved. Can be performed at the same time.

In the present invention, as shown in FIGS. 6 and 7, a plate member 82 having a plurality of vertically extending long holes 81 is provided, and the plate member 82 is fixed to the plate member 82 in a comb shape by welding or the like. A gap securing means 84 having a large number of round bars 83,
An artificial turf washing vehicle 2 is further provided on the inner wall surface of the hood 5 orthogonal to the running direction by bolts 85 inserted into the long holes 81. According to such a gap securing means 84,
In the artificial turf 1 simply stretched or partially fixed to the ground or floor, the artificial turf 1 is partially closed so as to close the gap 10 due to the strong negative pressure of the space 72 in the hood 5. Is raised, the raised portion is the lower end 86 of the round bar 83.
Therefore, further lifting can be prevented, and the minimum gap 10 can always be secured. Note that the lower end 86 of the round bar 83 may be processed into a substantially spherical or hemispherical shape so as not to be caught on the artificial turf 1 during traveling. In addition,
The gap securing means 84 includes an inverted L-shaped round bar 83 which is formed by bending the lower end 86 of the round bar 83 at a substantially right angle and extending parallel to the left side in FIG. 6 along the lower surface of the flange 9. Is also good. The inverted L-shaped round bar 83 has a function of pressing the pile so that the pile of the artificial turf does not close the gap 10, and is particularly preferable. As the diameter of the round bar 83,
An example is 6 mm to 10 mm, and the interval between the round bars 83 is such that the air flow is not hindered much and the void 10 is not reduced by the raised artificial turf 1, and is generally about 10 mm to 100 mm. Is done. The distance h between the lower end 86 of the round bar 83 and the artificial grass 1 is
The relationship of H> h ≧ 0 is satisfied. In the gap securing means 84 of this embodiment, the interval h can be arbitrarily adjusted by loosening the bolt 85. The same applies to the following specific examples, but the gap securing means may be provided on the side surface of the hood 5 parallel to the traveling direction.

As shown in FIGS. 8 and 9, a large number of recesses 91 are provided at equal intervals on the lower surfaces of the front and rear flanges 9 perpendicular to the running direction.
9 having a recess 91 as a gap securing means
May be attached to the lower end of the hood 5 by welding or the like.
As with the above-mentioned gap securing means 84, even when the artificial turf 1 is partially lifted, the gap 10 can always be secured by the recess 91 even in the gap securing means composed of the recess 91. Further, the projection 92 has a function of holding down the pile.

Further, as shown in FIG. 10, through-holes 100 are formed at equal intervals in the front and rear flanges 9 perpendicular to the running direction, while being inserted through the through-hole 100 and a roller 101 at the end.
Has a large number of comb-like portions 102 rotatably attached thereto, and has an adjusting member 104 having a long hole 103 provided on an upper side thereof on a side wall portion of the hood 5 orthogonal to the traveling direction by a bolt 105 inserted into the long hole 103. The artificial turf washing vehicle 2 may be formed by being mounted so as to be adjustable in the vertical direction. In the case of this example, by adjusting the mounting position of the adjustment member 104 to the hood 5 in the vertical direction by loosening the bolt 105, the interval H between the gaps 10 can be set as desired. Void 1 between 9 and artificial turf 1
In addition to functioning as adjusting means for adjusting the amount of air sucked by the suction pipe 4 through the front and back of the hood 5, the air is directly provided at the flange 9, and as a result, the air gap 1
Even if the artificial turf 1 is partially lifted so as to cover 0, the artificial turf 1 also has the function of a gap securing means for preventing the lift with the roller 101 and always securing the gap 10. Thus, in the present invention, the artificial turf washing vehicle 2 may be formed by the adjusting member 104 having both functions of the adjusting means and the gap securing means.

[0032]

As described above, according to the present invention, there is provided adjusting means for adjusting the amount of air sucked by the suction pipe through the gap between the flange and the artificial turf before and after in the traveling direction.
The cleaning liquid can be blown up by increasing the amount of air behind the hood in the traveling direction as compared with the front direction, so that the dust can be efficiently removed and the cleaning liquid can be efficiently collected. In addition, since the air gap securing means is provided, the above-described effect can be reliably obtained even for artificial turf simply stretched or partially fixed to the ground or floor.

[Brief description of the drawings]

FIG. 1 is a plan view of a specific example of the present invention.

FIG. 2 is a side view of the specific example shown in FIG.

FIG. 3 is a detailed perspective view of a hood and the like of the specific example shown in FIG. 1;

FIG. 4 is a detailed sectional view of the hood and adjusting means of the embodiment shown in FIG. 1;

FIG. 5 is a diagram illustrating an operation of a specific example of the present invention.

FIG. 6 is a partial cross-sectional view of another embodiment of the present invention.

FIG. 7 is a front view of the specific example shown in FIG. 6;

FIG. 8 is a partial cross-sectional view of still another embodiment of the present invention.

FIG. 9 is a front view of the specific example shown in FIG. 8;

FIG. 10 is a partial cross-sectional view of still another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Artificial turf 2 Washing car 3 Opening 4 Suction pipe 5 Hood 6 Nozzle pipe 7 Nozzle 8 Separation device 9 Flange 10 Void 11 Adjusting means

Claims (1)

(57) [Scope of request for utility model registration] 1. A washing car for washing a stretched artificial turf, wherein the washing car is opened downward, and a suction pipe is connected to an upper part thereof .
A hood having a flange around the mouth, a plurality of nozzles for spraying cleaning liquid disposed downward in the hood, and a separation device for separating a mixture of air, cleaning liquid and dust sucked by a suction pipe. and adjusting means for adjusting before and after the air amount in the traveling direction to be sucked by the suction tube through the gap between the flange and the artificial turf, the gap secured to ensure a gap between the flange and the artificial grass
And an artificial turf washing vehicle comprising: