JP2015104339A - Dust collecting device of lawn sweeper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dust collecting device in which small dust contained in the air discharged from a lawn sweeper is removed, cleaned and discharged.SOLUTION: A lawn sweeper is characterized in that: dust A and dust a on the lawn are raked with a brush rotationally driven in a brush case and sent into a tank 10 through a raking-up wind tunnel with air; the dust is introduced into the tank 10 where a rear opening part of the tank 10 is pivotally supported on the upper part of the tank 10 and closed up with an openable door member 13; the large dust A is retained in the tank 10; and a ventilation hole 15 for discharging the small dust a sent thereinto together with the air is equipped in the door member 13. In the lawn sweeper, a water tank 21 for absorbing the small dust is provided so that a water surface is positioned below a discharge port 17 of a ventilation body 16 for introducing the air discharged from the ventilation hole 15 of the door member 13 and the small dust a passed through a net 12 to the lower direction of the door member 13.

Description

  The present invention relates to a lawn cleaning vehicle that is attached to a lawn cleaning vehicle that uses a lawn mower, a grass mower, or the like to collect trash such as lawn, grass, fallen leaves, dead grass, dust, etc. The present invention relates to a dust collector.

  In golf courses, baseball stadiums, or lawn nurturing fields for sale, if the lawn grows too much, competition will be hindered or the product value will be reduced. We are mowing the lawn to shorten it. A lawn sweeper is generally used to collect the cut lawn, grass, etc. generated during this work and transport them to a garbage disposal site (for example, Non-Patent Document 1).

  As shown in FIGS. 11 to 14, this conventional lawn cleaning vehicle 1 is located between a front wheel 3 and a rear wheel 4 that support the vehicle body 2 so as to run freely, and includes a front engine drive unit 5 and a rear tank stacking unit 6. A brush case 8 containing a brush 7 that is driven to rotate to scrape large and small harvested garbage A, a mixed with lawn, grass, or dust that has been cut is provided below the boundary of the brush. Large and small cutting wastes A and a are sent into the tank 10 along with air through the upper wind tunnel 9. The harvested garbage A, a sent to the tank 10 hits the reflector 11 or the ceiling provided in the upper front of the tank 10 and changes its direction downward so that the large harvested garbage A is accumulated in the tank bottom 10a. The fine cutting dust a is provided on the extension of the reflecting plate 11 together with air, passes through the mesh 12 at the rear upper side in the tank 10, and can open and close the opening 10 b at the rear end of the tank 10. From the vent hole 15 formed above the closing plate 14 to the ground via the ventilating cylinder 16 formed outside the closing plate 14, the air is discharged downward from the discharge port 17 toward the ground.

  Then, when a predetermined amount of large cutting waste A accumulates in the tank bottom 10a, the tank 10 is dumped around a fulcrum 18 provided on the vehicle body 2, thereby allowing the door member 13 to be positioned above the closing plate 14 and above the tank 10. The door member 13 hangs down downward due to gravity around a rotating shaft 19 that is rotatably fixed, and is accumulated from a gap formed between the opening 10b at the rear end of the tank 10 and the closing plate 14 of the door member 13. The harvested garbage A slides on the tank bottom 10a and is discarded in the garbage disposal area.

Kawashima Agricultural Machinery Manufacturing Co., Ltd. 2011 edition catalog “Kawashima Rider Sweeper LS950D LS950HD”

  According to the conventional lawn cleaning vehicle 1 described above, among the large and small cutting garbage A and a scraped up together with the air in the tank, the garbage a such as fine cutting that has passed through the meshes of the net 12 passes through the ventilation hole 15 together with the air. Although it is discharged into the atmosphere from the discharge port 17 downward through the ventilator 16 to the ground, if there is a person nearby, such as a golf course, fine trash a makes the atmospheric environment worse. There is a problem of giving an unpleasant feeling to people.

The present invention has been made in view of the above circumstances, and the means for this is as follows. Claim 1 is that the dust on the lawn is scooped up with a brush that is driven to rotate in the brush case, and the wind-up wind tunnel together with the air. The rear opening of the tank that is fed through is introduced into a tank that is pivotally supported above the tank and is closed by an openable / closable door member, which stores large garbage in the tank and feeds it together with air. In the lawn sweeper equipped with a vent hole in the door member for discharging fine dust collected,
A water tank for absorbing fine dust is provided so that the water surface is located below the outlet of the ventilator that guides the air discharged from the vent hole of the door member and fine dust that has passed through the mesh downward in the door member. The dust collector of a lawn sweeper is used.

  According to a second aspect of the present invention, the ventilator is formed in a curved surface in which an opposing inner surface where air blown out from the vent hole and fine dust hits bulges outward.

  The invention of claim 3 is that the opening area of the outlet of the ventilator is formed smaller than the cross-sectional area of the midway path of the ventilator.

  According to a fourth aspect of the present invention, there are a plurality of outlets for the ventilator.

  The invention of claim 5 is that the discharge port of the ventilator is horizontally long.

  The invention of claim 6 is that a water tank is installed below the door member.

  The invention according to claim 7 is that the water tank is provided with a water scattering prevention plate inclined inward above the inner surface of the water tank.

  The invention according to claim 8 is that the water tank is detachably mounted on a water receiving guide attached to the outer surface of the closing plate of the tank of the door member so that the height position is variable.

  According to a ninth aspect of the present invention, the water receiving guide is configured to fix both sides to the notches of the water receiving vertical adjustment frame provided on the outer side surface of the closing plate on the side plates on both sides of the bottom surface on which the water tank is placed. It is in having established a hand grip.

  The invention of claim 10 is that the upper surface of the water tank is covered with a flexible member whose upper side is fixed to the door member.

  According to the first aspect of the present invention, the air containing the finely trimmed dust discharged from the tank is configured to blow out from the discharge port of the ventilation drum toward the water surface of the water tank. Some fine harvested garbage collides with the water surface and is absorbed by the water, so that it does not scatter in the air and does not give discomfort to the people around. Therefore, for example, when used for cleaning a golf course, there is an advantage that a cleaning operation can be performed even during golf play.

  According to the second aspect of the present invention, since the opposing inner surface of the ventilation cylinder facing the ventilation hole through which fine cutting dust and air are ejected from the tank is formed to be a curved surface bulging outward, There is an advantage that the flow is smooth compared to the case of a flat plate.

  According to the invention of claim 3, since the opening area of the discharge port of the ventilator is formed smaller than the cross-sectional area of the midway path of the ventilator, the discharge speed is increased at the discharge port. The collision force of colliding fine harvesting garbage and the like is increased, and more fine harvesting garbage and the like can be absorbed by the water surface. As a result, more exhausted air is purified.

  According to the invention of claim 4, since there are a plurality of discharge ports, fine dust can be adsorbed to a position away from the water surface of the water tank, so that the position of fine cutting dust etc. accumulated in the water tank is separated. be able to. For this reason, many fine garbage can be collected in one water tank.

  According to the invention of claim 5, since the discharge port is horizontally long, fine dust and the like can be accumulated over the entire lateral direction of the water tank, so that a lot of fine dust is collected in one water tank. can do.

  According to the invention of claim 6, since the water tank is installed below the door member, the door member is pivotally supported even when the tank is dumped and inclined rearward, so that the water tank is always vertical. The water tank will not tilt because it maintains the directional orientation, and therefore no water will spill out.

  According to the seventh aspect of the present invention, the water splash prevention plate provided in the water tank is scattered even if the water surface of the water tank is shaken due to irregularities in the planting ground such as lawn where the cleaning vehicle runs. In addition to preventing spillage, the chances of contact with air containing fine cutting waste blown out from the discharge port will increase, so that much fine cutting waste will be absorbed by the water and the air will be purified more cleanly. it can.

  According to the eighth aspect of the invention, since the water tank is detachably fixed to the water receiving guide attached to the closing plate so that the height position is variable, fine cutting waste accumulates in the water tank and is Since the height position may be gradually lowered when the height becomes high, a large amount of fine cutting waste can be collected in the water tank.

  According to the ninth aspect of the present invention, since the grips are provided on the both side plates of the water receiving guide, it is convenient to carry it by hand, and the grip is fixed to the water receiving vertical adjustment frame. Thus, the vertical position of the water receiving guide can be easily adjusted.

  According to the invention of claim 10, since the upper surface of the water tank is covered by the flexible member whose upper side is fixed to the door member, even if the fine cutting garbage collides with the water surface, the fine cutting garbage is still partially on the surface. Since the contained air convects for a while in the space covered by the flexible member, there are more opportunities for contact with the water surface during that time, and the air is further purified.

Whole perspective view of dust collecting device of lawn cleaning car of this invention Fig. 1 is a cross-sectional illustration of the central cross section of the lawn sweeper attached to the tank. Illustration of fixing the water tank to the water receiving guide Explanation of unlocking the water tank guide Illustration of the installation state of the water guide to the door member Illustration of the process of removing the water guide from the door member Cross-sectional explanatory drawing of other embodiments of the water tank Installation diagram of the flexible member between the water tank and the vent of the ventilation cylinder Whole perspective view of the dust collecting apparatus of other embodiment of the lawn cleaning vehicle of this invention Whole perspective view of the dust collecting apparatus of further another embodiment of the lawn cleaning vehicle of this invention Partial cross-sectional explanatory diagram of lawn sweeper and conventional dust collector Whole perspective view of a conventional door member 12 is a cross-sectional explanatory view of the center vertical line of FIG. Dump state explanatory drawing to discharge large garbage from the tank when the lawn sweeper is equipped with a conventional door member

Embodiments of the present invention will be described below with reference to the drawings. In addition, about a common part with the prior art demonstrated in the term of background art, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  The dust collector 20 of the lawn cleaning vehicle 1 according to the present invention is discharged from the discharge port 17 by placing a water tank 21 below the discharge port 17 of the ventilating drum 16 as shown in FIGS. The object is to apply air containing fine cutting waste a to the surface of the water tank 21 so that the fine cutting waste a is absorbed by water, purify the air, and release it to the atmosphere.

  The dust collecting device 20 communicates with a closing plate 14 that closes the rear opening 10b of the tank 10 and a ventilation hole 15 formed above the closing plate 14 so that fine cutting waste a and air from the tank 10 are externally downwardly passed. A ventilator 16 provided outside the closing plate 14, a door member 13 having a discharge port 17 provided below the ventilator 16, and a water surface positioned below the discharge port 17. The basic structure is a water tank 21 installed in the water tank.

  Since the door member 13 is rotatable around the rear opening 10b of the tank 10 by the rotary shaft 19 in the front and rear direction of the lawn sweeper 1, the tank 10 is centered on the fulcrum 18 by a dump mechanism (not shown). When the front of the door member 13 is lifted, the door member 13 is lifted by the rotary shaft 19 so as to maintain a vertical posture with respect to the ground by its own weight. As a result, the large cutting waste A stored in the tank 10 is slipped on the tank bottom 10a of the tank 10 which has been tilted rearward from the point just between the rear opening 10b of the tank 10 and the closing plate 14 of the door member 13. It falls and is released to the ground.

  The outer peripheral frame 22 forming the ventilation cylinder 16 on the side facing the ventilation hole 15 of the ventilation cylinder 16 draws a curve bulging outward so that the flow is smoothly changed downward. A part of the outer peripheral frame 22 of the ventilation drum 16 may be used as the closing plate 14 or may be formed of a separate member. Since the cross-sectional area of the ventilation portion of the ventilation drum 16 is narrowed and reduced as it approaches the discharge port 17, air containing small cutting waste a is discharged from the discharge port 17 at a high speed. The proportion of garbage a absorbed in water increases. In this case, the narrowed outlet 17 may be divided into two as shown in FIG. 9 or may be elongated in the lateral direction as shown in FIG.

  As shown in FIGS. 1 and 2, the water tank 21 is placed on a water receiving guide 23 that is fixed to the outer surface of the closing plate 14 so as to be adjustable in height. The water receiving guide 23 includes a mounting table 23a on which the water tank 21 is mounted, a side plate 23b on both sides of the mounting table 23a, and a rear plate 23c that covers the rear side between the two side plates 23b. A U-shaped grip 24 protruding outward is fixed, and a bearing 25 is provided on the mounting base 23a so that the water tank 21 can be easily pulled out. A stopper 26 for locking the water tank 21 on the mounting table 23a is rotatably provided. 3 and 4, the stopper 26 is fixed to a bearing 27 fixed to the side plate 23 b so as to rotate in a direction orthogonal to the inside of the side plate 23 b. Then, the other end of the tension spring 28 having one end fixed to the side plate 23b is fixed to the hooking rod 29 in the vicinity of the shaft of the bearing 27 of the stopper 26, whereby the locking position to the inside of the side plate 23b and the side plate 23b. The opening position to the outside can be maintained by the biasing force.

  As shown in FIGS. 1 and 2, the water tank 21 is housed in the space between the side plates 23b and the rear plate 23c of the water receiving guide 23 and placed on the bearing 25 of the mounting table 23a. By this, the water surface of the water B contained in the inside faces the discharge port 17, and the handle bar 30 is provided on the opposite inner surface of the inside for carrying, A handle 21a used when the water receiving guide 23 is pulled out is fixed to the side surface on the open side. The size of the water tank 21 may be such that it fits inside the water receiving guide 23. Further, as shown in FIG. 7, if a water splash prevention plate 31 that is inclined inward to return water is provided above the inner surface so as not to jump out from the end when the water surface shakes, the lawn traveling vehicle 1 Water can be prevented from jumping out even when the ground on which the road runs is not flat due to lawn or the like. Then, during operation, the stopper 26 is tilted to lock the water tank 21 so that it does not come off the water receiving guide 23, and when it is taken out, as shown in FIG. Then, the handle 21 is slid on the bearing 25 and pulled out.

  In this embodiment, the adjustment of the height of the water tank 21 is the adjustment of the height of the water receiving guide 23, which is a grip provided on the side plates 23b as shown in FIGS. A hand 24 is hung on an arbitrary height position of a plurality of notches 32a of the water receiving adjustment frame 32 provided in the vertical direction on the closing plate 14, and is fixedly supported above the water receiving adjustment frame 32 so as to be rotatable. The frame 32b is closed to prevent the grip 24 from dropping from the notch 32a. The fixed frame 32b is fixed by a pin 34 inserted into a pin hole 33 provided on both the lower side of the fixed frame 32b and the water receiving adjustment frame 32 so that the fixed frame 32b does not open during traveling due to vibration of the lawn traveling vehicle 1.

  In order to collect the cutting garbage A, a and the like remaining on the lawn or the grassland using the dust collecting device 20 of the lawn cleaning car 1 of the present invention having the above-described configuration, the cutting garbage A, a, etc. is put on the lawn cleaning car 1. Run on the lawn with a etc. As a result, by the rotation of the brush 7 inside the brush case 8 provided substantially below the center of the vehicle body 2, the cutting dust A, a, etc. is scraped up by the wind pressure and passes through the wind-up wind tunnel 9 into the tank 10. The large harvested garbage A is deposited on the tank bottom 10a as it is when it hits the reflecting plate 11 above the tank 10 and falls in the direction of the tank bottom 10a. The air enters the ventilation drum 16 of the door member 13 through the ventilation holes 15 between the eyes. When passing through the net 12, the large harvested garbage A that has soared cannot pass through the eyes of the net 12 and falls and accumulates on the tank bottom 10a.

The fine cutting litter a and the air guided to the ventilating drum 16 are gradually turned downward by the curve of the inner surface of the outer peripheral frame 22 bulging outward, exit from the discharge port 17, and the water tank below that It collides with water B in 21. At this time, since the opening area of the discharge port 17 is narrowed so as to be smaller than the cross-sectional area in the middle of the ventilating drum 16, the ratio of the fine cutting litter a coming into contact with water increases and is absorbed by the water B. The degree of being increased. At this time, if the water tank 21 is provided with the water scattering prevention plate 31, when the lawn traveling vehicle 1 is shaken, the water surface is also shaken and the water B scattered upward along the inner surface is scattered. Thus, even in the process of returning to the water tank 21 again, contact with the air containing the fine cutting waste a improves the removal efficiency of the fine cutting waste a.

  In this way, the fine cutting litter a absorbed in the water accumulates on the bottom surface of the water tank 21 and may exceed the water surface. Therefore, it is preferable that the water receiving guide 23 is sequentially lowered to a lower position. For this purpose, the pin 34 is removed, the fixed frame 32b is rotated and lifted, the grip 24 of the water receiving guide 23 is held and moved to the lower notch 32a, and the fixed frame 32b is rotated and lowered again. Fix it. In this way, when the fine harvested garbage a is filled in the water tank 21, the removal efficiency is lowered. Therefore, the fine harvested garbage a deposited inside the water tank 21 is removed together with the water B at a predetermined place. At this time, when the stopper 26 is removed and the handle 21a is pulled, the water tank 21 can be easily pulled out by sliding on the bearing 25. Then, hold the handgrip rod 30 with both hands and throw it away, add new water B, and restore it in the reverse procedure.

  As described above, the air from which one end has collided with the water surface and from which the fine cutting dust a has been removed is released to the atmosphere, so that even if there is a person in the surrounding area, discomfort is lost. still. As shown in FIG. 8, the upper portion of the water tank 21 and the periphery of the discharge port 17 are closed with a flexible member 35 such as rubber or a synthetic resin sheet, so that there are many opportunities for contact between the fine cutting waste a and the water surface. As a result, air with a small content of fine cutting waste a is released from the gap between the water tank 21 and the flexible member 35, and the water surface can be prevented from being lowered due to water scattering.

  In the above description, the case of the dust collecting apparatus 1 for harvesting garbage by lawn mowing has been described. However, instead of lawn, grassland or a mixture of lawn and grassland may be used. May be trash. The lawn is not only natural turf but also artificial turf made of synthetic resin, and it can be used in the same way when dust such as paper scraps or untouched car is scattered on the upper surface.

The dust collector of the lawn cleaning device of the present invention can be widely used in golf courses, golf driving ranges, turf stadiums, ball playgrounds, baseball stadiums, artificial turf playgrounds and the like that exist in many places throughout the country.

DESCRIPTION OF SYMBOLS 1 Lawn cleaning vehicle 2 Car body 7 Brush 8 Brush case 9 Raising wind tunnel 10 Tank 11 Reflection plate 12 Net 13 Door member 14 Closure plate 15 Ventilation hole 16 Ventilation drum 17 Outlet 20 Dust collector 21 Water tank 23 Water receiving guide 26 Stopper 31 Water splash prevention plate 35 Flexible member

Claims (10)

Garbage on the lawn is scraped up with a brush that rotates in a brush case, and the rear opening of the tank that is fed with air through the wind-up wind tunnel is blocked by a door member that is pivotally supported above the tank. In the lawn cleaning vehicle, which is introduced into the tank, and stores the large garbage in the tank and has a vent hole in the door member for discharging the fine garbage sent together with the air,
A water tank for absorbing fine dust is provided so that the water surface is located below the outlet of the ventilator that guides the air discharged from the vent hole of the door member and fine dust that has passed through the mesh downward in the door member. A dust collector for a lawn sweeper.   2. The dust collector of a lawn cleaning vehicle according to claim 1, wherein the ventilation drum is formed in a curved surface in which an opposing inner surface where air blown out from a ventilation hole and fine dust hits bulges outward.   3. The dust collector of a lawn sweeper according to claim 1, wherein an opening area of the discharge port of the ventilation drum is formed smaller than a cross-sectional area of a midway path of the ventilation drum.   The dust collector of the lawn sweeper according to claim 3, wherein the ventilator has a plurality of outlets.   The dust collector of a lawn sweeper according to claim 3, wherein the discharge port of the ventilator is horizontally long.   The dust collecting apparatus for a lawn sweeper according to any one of claims 1 to 5, wherein the water tank is installed below the door member.   The dust collecting apparatus for a lawn sweeper according to any one of claims 1 to 6, wherein the water tank is provided with a water scattering prevention plate inclined inward above the inner surface of the water tank. The said water tank is detachably mounted in the water receiving guide attached to this side surface of the closing plate of the tank of the said door member so that height position is variable, The any one of Claim 1 thru | or 7 characterized by the above-mentioned. A dust collector for a lawn sweeper.   The water receiving guide is provided with grips for fixing both sides of the notch of the water receiving vertical adjustment frame provided on the outer surface of the closing plate on the side plates on both sides of the bottom surface on which the water tank is placed. A dust collector for a lawn sweeper according to any one of claims 1 to 8.   The dust collecting apparatus for a lawn cleaning vehicle according to any one of claims 1 to 9, wherein an upper surface of the water tank is covered with a flexible member whose upper side is fixed to a door member.

Images