JPH09256337A - Self-propelled cleaner for artificial lawn - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a self-propelled cleaner capable of efficiently cleaning dust such as sand dust, etc., collected in artificial lawns. SOLUTION: Engine generator, dust collector, high-pressure blower 6 with low airflow/high static pressure and wind blower 7 with intermediate airflow/low static pressure are mounted on a truck. A nozzle 21 for jetting air-jet toward the surfaces on roots of artificial lawns is provided to the front end of a hose connected to the high pressure blower 6, an inlet of the high pressure blower 6 and one outlet of the upper part of the dust collector are connected with a hose, a dust hood 31 covering the nozzle 21 and having a nozzle 30 for sucking air containing dust is provided to the front end of a vacuum duct connected to an inlet of the lower pat of the dust collector, and the other output of the upper part of the dust collector and an inlet of the wind blower 7 are connected with a hose 32. A cone 37 and a pleated filter 38 surrounding the outside of the cone 37 are provided to the center section inside the dust collector, an inverse washing pulse jet nozzle 39 is provided upward of the upper end of the cone 37, and a hopper chute 41 is provided to the lower part of the dust collector.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a self-propelled cleaner device for artificial turf.

[0002]

2. Description of the Related Art When cleaning dust such as dust and sand accumulated in the grass (fiber) of artificial grass conventionally laid in a wide yard such as a stadium, a device having a vacuum nozzle with a cleaning width of 30 cm removes the dust. It was cleaned by suction.

[0003]

The above-mentioned conventional vacuum type device has the following problems. Since the artificial grass has a thick grass of 15 mm to 25 mm, the air only flushes the surface of the grass, and the fibers inside the grass (bottom) act as a filter, so the flushing airflow is weak and cleaning is difficult. It was Since the vacuum nozzle is moved while pressing the artificial turf with the weighted roller before and after the vacuum nozzle, the artificial turf is wrinkled. A large air volume and a high static pressure vacuum source were required, the equipment was large, and the tire contact pressure was high, so it was impossible to run on artificial turf. Cleaning a large yard such as a stadium requires a great deal of labor and time, and we had no choice but to resort to human tactics. Contrary to the conventional vacuum type device, the present invention blows dust such as sand dust accumulated in the grass of artificial turf from the inside with an air jet ejected from a nozzle, and fluidizes dust-containing air to the outside. It is an object of the present invention to provide a self-propelled cleaner device capable of efficiently cleaning artificial grass by enclosing it with a hood that does not scatter, sucking, and collecting.

[0004]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a trolley supported by a low ground pressure tire, an engine generator, a dust collector, and a high-pressure blower with a small air flow and high static pressure. And a blower with medium air volume and low static pressure,
The driver's seat, the operation panel, the control panel, and the Vevicon are installed. At the tip of the air jet hose connected to the outlet of the high-pressure blower, an air jet nozzle that injects an air jet toward the root surface of the artificial turf is installed. The inlet of the high-pressure blower is connected to one outlet of the upper part of the dust collector with a return hose, and the end of the vacuum duct connected to the lower inlet of the dust collector is covered with the air jet nozzle, and the nozzle is the same. A dust hood having a suction nozzle that sucks dust-containing air generated around is installed, the other outlet at the top of the dust collector and the inlet of the blower blower are connected by a suction hose, and a silencer is provided at the outlet of the blower blower. A cone shaped so that the outer diameter on the lower end side is thicker and the outer diameter becomes smaller toward the upper end, is fixed in the center of the dust collector. The outer surface of the plein filter is surrounded by a pleated filter, and the lower end of the pleated filter is airtightly bonded to the lower end of the cone, and is formed between the cone and the pleated filter at a position spaced upward from the upper end of the cone. A backwash pulse jet nozzle for injecting a pulse jet into a closed space is provided, a hopper chute is provided under the dust collector, and the inlet edge of the recovery pack is detachably attached to the outlet of the hopper chute. It is a thing.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION An engine generator, a dust collector, a high-pressure blower with a small air volume and a high static pressure, and a medium air volume and a low static pressure release are mounted on a trolley that supports front and rear portions with low ground pressure tires. A wind blower, a driver's seat, an operation panel, a control panel, and a Bebecon are installed. Then, the rear end of the air jet hose is connected to the outlet of the high-pressure blower, and an air jet nozzle for injecting an air jet toward the rooted surface of the artificial turf is provided at the tip of this air jet hose. A return hose connects the inlet of the high-pressure blower and the outlet on one side of the upper part of the dust collector. The rear end of the vacuum duct is connected to the lower inlet of the dust collector, and the tip of this vacuum duct is covered with the air jet nozzle and has a suction nozzle that sucks the dust-containing air generated around the nozzle. Provide a hood. Connect the other outlet at the top of the dust collector to the inlet of the blower blower with a suction hose,
A silencer is connected to the outlet of the blower blower. At the center of the dust collector, an iron plate cone was formed so that the outer diameter on the lower end side was thicker and the outer diameter became smaller toward the upper end. The outer surface of the cone was fitted with a hard filter material. It is surrounded by a pleated filter that is folded and formed into a cylindrical shape, and the lower end of the pleated filter is hermetically bonded to the lower end of the cone. A backwash pulse jet nozzle that injects a pulse jet into the space formed between the cone and the pleated filter is installed at a position spaced upward from the upper end of the cone. A hopper chute is provided at the bottom of the dust collector, and the inlet edge of the recovery pack is detachably attached to the outlet of the hopper chute.

In the artificial turf self-propelled cleaner device having the above structure, the operator operates the engine generator and operates the operation panel to self-propell the device, and at the same time, the air jet from the high-pressure blower causes an air jet hose. After that, it was sprayed from the air jet nozzle with a high-speed jet toward the root surface of the artificial grass, and dust, sand, etc. accumulated in the grass were blown, dug up, and fluidized. Generates dusty air around the air jet nozzle. The dust hood covering the air jet nozzle is negatively pressured by the blower blower, so the dust-containing air is not diffused but is sucked by the suction nozzle, passes through the vacuum duct, and then enters the dust collector. Be recovered to. Since the amount of collected dust becomes a considerable volume, the large area pleated filter is clogged, that is, dust stock is generated. Therefore, a pulse jet is jetted from the backwash pulse jet nozzle to enable continuous regeneration of the pleated filter by the pulse jet backwash method, and the pleated filter is always kept at a certain clogging to keep the vacuum air volume. For this reason, it is equipped with a Babycon and plays in sequence.

[0007] A part of the purified air that has passed through the pleated filter passes through the suction hose by the suction force of the blower blower, and is then discharged into the atmosphere while the noise is reduced by the silencer. The remaining portion of the cleaned air passes through the return hose by the suction force of the high-pressure blower, is returned to the high-pressure blower, and is used again as an air jet. Therefore, the high pressure blower can be made smaller and lighter. On the other hand, the dust is stocked in the lower part of the dust collector and gradually accumulates in the recovery pack through the hopper chute. When a certain amount of dust accumulated in the collection pack, the blower blower was stopped, the inlet edge of the collection pack was removed from the outlet of the hopper chute,
The dust in the pack is transferred to a disposal site, etc. while sealing and preventing the worker from being polluted.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a truck, 2 and 2 are low ground pressure tires that support the front portion of the truck 1, and 3 and 3 are low grounding that support the rear portion of the truck 1. An engine generator, for example, a diesel generator 4 of 20 KVA is installed on the rear side of the pressure tire and the bogie 1. 5 is a dust collector installed on the front right side of the generator 4, for example,
Use 25 m ³ / min. 6 is a high-pressure blower with a small air volume and high static pressure installed on the front left side of the generator 4, for example, 11
Use KW, 14m ³ / min (circulation type). 7 is a blower with a medium air volume and low static pressure installed on the high-pressure blower 6, for example, 1.5 KW, 10 m ³ / min. 8
Is a housing formed in a shape covering the generator 4, the dust collector 5, the high pressure blower 6 and the blower blower 7, and has a generator operating door 9 and a dust discharge door 10. 11 is a driver's seat installed on the front right side of the dolly 1, 12 is an operation panel installed immediately in front of the driver's seat 11, 13 is a control panel installed on the left side of the driver's seat 11, 55 is adjacent on the left side of the control panel 13. , 14 is the front bumper attached to the front end of the truck 1,
15 is a side mirror installed so that an operator seated in the driver's seat 11 can be seen, 16 is a rear bumper attached to the rear end of the truck 1, 17 is a back sensor attached to a part of the rear bumper 16, and 18 is a housing 8 This is a patrol light attached to the front edge of the roof of the, and lights up during dust collection work.

Reference numeral 19 denotes an air jet chamber having a cleaning length of 1 m, which is arranged in the width direction of the carriage 1 below the front end of the carriage 1. The lower surface of the air jet chamber has 14 m of air directed toward the root surface of the artificial turf 20. ^An air jet nozzle 21 consisting of linearly arranged holes and slits for jetting at ³ / min × 1800 mmAq is provided. 22 is the outlet 2 of the high pressure blower 5.
3, an air jet hose connecting the inlet 24 of the air jet chamber 19 and a return hose 25, which connects the inlet 26 of the high-pressure blower 6 and one outlet 27 of the dust collector 5. Reference numeral 28 is a vacuum duct (φ200) connected to an inlet 29 at the lower part of the dust collector 5, the tip of which covers the entire air jet chamber 19 and the dust-containing air generated around the air jet nozzle 21.
A dust hood 31 having a suction nozzle 30 for sucking m ³ / min × 350 mmAq is provided. 32 is a suction hose,
The other outlet 33 on the upper part of the dust collector 5 and the inlet 34 of the blower blower 7 are connected. Reference numeral 35 is a silencer connected to the outlet 36 of the blower blower 7.

A cone 37 made of an iron plate is fixed to the center of the dust collector 5 and is formed such that the outer diameter on the lower end side is large and the outer diameter is reduced toward the upper end. Reference numeral 38 denotes a pleated filter, for example, a hard filter material having a large area of 33 m ² is folded into a fold shape and formed into a cylindrical shape to surround the outside of the cone 37, and the lower end of the pleated filter 38 is attached to the cone 37. It is airtightly adhered to the lower end of the. 39 is a backwash pulse jet nozzle, and cone 3
Installed at a position spaced upward from the upper end of 7, a pulse jet of 2 L air volume in 0.1 seconds into a space 40 of an inverted conical shape formed between the cone 37 and the pleated filter 38, that is, a high-speed air volume equal to the speed of sound. Is sprayed, and each fold surface of the hard pleated filter 38 is evenly hit to prevent clogging of the pleated filter 38. Reference numeral 41 is a hopper chute connected to the lower part of the dust collector 5, and inside the hopper chute, for example, as shown in FIG. ) 43 is provided, and the band 4 is attached to the outer periphery of the outlet of the hopper chute 41 with the inlet edge of the recovery vinyl pack (40 L) 44 fitted.
A fixing portion 46 for suspending and fixing the pack 43 is provided by bundling with 5, etc.

To discharge the dust 47 accumulated in the hopper chute 41 into the pack 44, after stopping the blower blower 7, the bottom of the pack 44 is received by a plate or pushed into a holder 48 such as a bucket. Then, the lift cylinder 43 is pulled up by the pressing cylinder 42 to open the outlet of the hopper chute 41. And dust 4 for 40L
When 7 is dispensed into the pack 44, the lift damper 43 is pushed down by the pressing cylinder 42, and the outlet of the hopper chute 41 is closed. Next, the band 45 is untied, the pack 44 is removed together with the plate or the retainer 48, the pack 44 is sealed, the inlet edge of the new pack 44 is fitted to the outlet outer periphery of the hopper chute 41, and the band 45 is removed. And unite. Note that the lift damper 43 may not be provided, and the dust 47 may be discharged by dropping it directly into the pack 44 as shown in FIG. 7. Further, a sluice valve is provided at the outlet of the hopper chute 41, and the sluice valve The dust 47 may be discharged into the pack 44 by opening and closing.

As shown in FIG. 9, the front shaft 48 is connected and driven by a continuously variable transmission (ring cone motor) 49 and a chain sprocket 50. The ring cone motor 49 is of a lever shift type and is connected to the accelerator. Since the ring cone motor 49 controls its own torque at the time of starting, it becomes a soft start. It also has a self-brake function because it is locked when stopped. As shown in FIG. 9, the steering is composed of a rear tire shaft 51 and a free shaft 52, and a connecting rod 53 interlocks left and right. The steering actuator 57 gives a steering angle of 45 degrees to the left and right by the linear cylinder motor 54. The thrust is 45 kg. All operation (running) operations of the device are performed with the joystick and accelerator, and during running cleaning,
Provide a mechanical stopper so that the accelerator can be fixed at the set position.

The power of the generator 4 is 200V, 60Hz, 14.6KW
Then, as shown in FIG. 9, the power transmitted to the control panel 13 and the Bebecon 55 and transmitted to the control panel 13 is transmitted to the blower blower 7, the high-pressure blower 6, the ring cone motor 49, and the steering linear cylinder motor 54, respectively. And
The power transmitted to the Bevicon 55 is applied to the backwash pulse jet nozzle 39, the operation panel 12 and the air jet nozzle 21.
To the control panel 13, the operation panel 12,
The patrol light 18 and the back sensor 17 are electrically connected to each other. On the operation panel 12, the forward / backward movement of the device and the high speed / low speed (0-3 km /
h) and a high / low speed (0-3 km / h) when reversing, an operation lever that switches the traveling direction of the device to the left and right, an operation switch that switches start / stop of the dust collection operation, air An operating lever for switching up and down movement of the jet nozzle 21 is provided.

The artificial grass self-propelled cleaner device having the above structure has a cleaning capacity of 1 m width, 2000 m ² / h, dimensions of 1600 W × 3500 L × 1900 H (including tires), weight of 1650 Kg, noise However, it can be produced to be 85 dB (A)), at 3,5 m. The present invention is not limited to the above-mentioned embodiments, but can be appropriately modified in design within the scope of the claims.

[0015]

The present invention is configured as described above, and has the following effects. A high-speed air stream is blown toward the bottom surface of the artificial turf in which dust dust is accumulated to remove and fluidize the dust. This can be achieved by blowing compressed air from a high-pressure blower at a high speed through linearly arranged holes and slits. Enclose the fluidized dust with a dust hood that efficiently collects the air jet, and in order to prevent the air jet jet from scattering to the outside, it sucks and collects about twice the air jet air volume.
For the collection and suction, the suction force of the blower blower is used. The device of the present invention has a power of 1/5, a weight of 1/2, and a cost of 1/2 as compared with a vacuum type device, and maintenance is easier. This is made possible by the combination of a low air volume / high static pressure blower for air jets and a medium air volume / low static pressure blower for recovery. The air volume of the high static pressure blower only needs to have a pressure to obtain the wind speed required to act on the bottom of the artificial grass, and the air volume can be small. In addition, the dust is already fluidized and can be collected sufficiently even at low static pressure, so the amount of air required is small. Unlike the vacuum type device, the device of the present invention does not require the entire circumferential surface of the nozzle to be grounded, and can perform efficient cleaning even if there is some unevenness (unevenness). Since the device of the present invention is smaller and lighter than the vacuum system device, it can be self-propelled on an artificial grass laid in a large yard such as a stadium and does not damage the artificial grass. The cleaning width is 1 m, visible to the operator, and the cleaning work can be done once for 1 hour at 8H / day.

[Brief description of drawings]

FIG. 1 is a plan view of the device of the present invention.

FIG. 2 is a side view of the device.

FIG. 3 is a front view of the device.

FIG. 4 is a plan view of the apparatus with a housing removed.

FIG. 5 is a side view of the same state.

FIG. 6 is a front view of the same state.

FIG. 7 is a diagram schematically showing an air jet injection mechanism, a dust recovery mechanism, and a cleaned air flow mechanism.

FIG. 8 is a view showing a mounted state of a lift damper that opens and closes an outlet of a hopper chute.

FIG. 9 is a diagram for explaining a power usage system of the generator.

[Explanation of symbols]

 1 truck 4 generator 5 dust collector 6 high pressure blower 7 blower blower 11 driver's seat 12 operation panel 13 control panel 21 air jet nozzle 22 air jet hose 25 return hose 28 vacuum duct 30 suction nozzle 31 dust hood 32 suction hose 35 silencer 37 Cone 38 Pleated filter 39 Backwash pulse jet nozzle 41 Hopper chute 55 Babycon

Claims (2)

[Claims] 1. A trolley supported by low ground pressure tires, an engine generator, a dust collector, a high-pressure blower with a small air flow and high static pressure, a blower with a medium air flow and low static pressure, and a driver's seat. An operation panel, a control panel, and a Vicon are installed. At the tip of the air jet hose connected to the outlet of the high-pressure blower, an air jet nozzle that injects an air jet toward the rooted surface of the artificial turf is installed. The inlet of the blower and the outlet on one side of the dust collector are connected by a return hose, and the air jet nozzle is covered at the tip of the vacuum duct connected to the inlet of the lower part of the dust collector, and around the nozzle. Provide a dust hood with a suction nozzle that sucks the generated dust-containing air, and connect the other outlet on the upper part of the dust collector and the inlet of the blower blower with a suction hose. Connect a silencer to the outlet,
At the center of the dust collector, the outer diameter on the lower end side is large,
A cone shaped so that the outer diameter becomes smaller toward the upper end is fixed, the outer surface of the cone is surrounded by a pleated filter, and the lower end of the pleated filter is hermetically adhered to the lower end of the cone, and the cone is moved upward from the upper end. A backwash pulse jet nozzle that injects a pulse jet into the space formed between the cone and the pleated filter is installed at a position spaced apart from the cone, and a hopper chute is installed below the dust collector, and the outlet of the hopper chute is installed. Is a self-propelled cleaner device for artificial turf in which the entrance edge of the collection pack is detachably attached. 2. An air jet nozzle having a cleaning width of 1
The self-propelled cleaner device for artificial turf according to claim 1, which is molded to have a length of m.