JP6455792B1 - Lawn sweeper - Google Patents

Abstract

In a lawn cleaning vehicle having a hopper in which cleaned dust is stored, the dust is prevented from falling outside through a through hole formed in the bottom of the hopper so as to store the cleaned dust in the hopper. To do. A lawn cleaning vehicle (1) includes a brush member (6) for scraping dust, a hollow brush case (7) in which the brush member (6) is disposed, and a hopper having a hollow box shape and a through hole (9) formed at the bottom. 8 and a lid member 10 for opening and closing the through hole 9 of the hopper 8. When the brush case 7 is inserted into the hopper 8 through the through hole 9, the lid member 10 opens the through hole 9, while moving the hopper 8 relative to the vehicle body 2, When the case 7 is extracted, the through hole 9 is closed. [Selection] Figure 1

Description

  The present invention relates to a lawn cleaning vehicle capable of cleaning a lawn while traveling on the lawn.

  In the following Patent Document 1, a rotating brush unit having a configuration in which a rotating brush and a blower blade are arranged one above the other in a casing, a dust collection bucket in which hay and the like sucked and collected by the rotating brush unit are accommodated, and A riding lawn surface cleaning machine is disclosed. In this riding type lawn surface cleaning machine, a bucket side connection port provided on the front end surface of the dust collecting bucket is connected to a casing side connection port provided on an upper end portion on the back side of the casing, and a hay The sowed hay is housed in the dust collection bucket by the blower blades.

  However, since the bucket side connection port is formed in the upper part on the front side of the dust collection bucket, the casing needs to be formed long in the vertical direction, and the casing is expensive. Moreover, since the casing is formed long in the vertical direction, in order to stably feed the hay into the dust collection bucket, it is necessary to provide a blower blade, which further increases the cost.

  In a riding-type lawn surface cleaner, when the dust collection bucket is enlarged so that many hay and grasses can be collected, it may be possible to form the dust collection bucket to extend further rearward than the rear wheel, The balance between the front and rear of the entire cleaning machine will be poor. In addition, it is conceivable that the front and rear lengths are increased by extending the vehicle body rearward, and the rear bucket is provided at the rear end, and then the dust collecting bucket is enlarged rearward. There is a problem of increasing the size in the front-rear direction. Furthermore, it can be considered that the distance between the pair of rear wheels is increased to increase the size of the dust collecting bucket downward. However, in this case, there is a problem that the entire cleaning machine is increased in size in the width direction. That is, in any case, when the dust collection bucket is enlarged, the entire cleaning machine is enlarged.

  In view of this, there has conventionally been proposed a lawn cleaning vehicle in which dust such as mowed grass scraped up by a brush member is accommodated from the bottom of the hopper to the inside. As shown in FIGS. 7 and 8, the lawn cleaning vehicle 101 has a brush member 102 disposed inside a brush case 103, and an upper end portion of the brush case 103 has a through hole 105 formed in a bottom portion of the hopper 104. The dust is carried into the hopper 104 through the brush case 103 and accommodated by rotating the brush member 102 in the direction of the arrow (counterclockwise). Since it is such a structure, the up-and-down length of the brush case 103 can be shortened, and the blower blade mentioned above can be abbreviate | omitted in connection with this. Further, since the brush case 103 is provided at the lower part of the vehicle main body 106, the hopper 104 can be formed without increasing the size of the lawn cleaning vehicle 101 as compared with the case where the casing is disposed in front of the dust collecting bucket. The size can be increased in the front-rear direction.

  As shown in FIG. 7, a thin and soft rubber plate 107 is provided inside the hopper 104 at the front and rear ends and the left and right ends of the rectangular through hole 105 at the bottom of the hopper 104. Each plate member 107 leans against the brush case 103 in a state where the upper end portion of the brush case 103 is inserted into the hopper 104 via the through hole 105, and the inner portion of the through hole 105 and the outer portion of the brush case 103. The gap between is covered. Thereby, it is possible to prevent dust carried into the hopper 104 from being dropped from the gap to the outside during cleaning.

  As shown in FIG. 8, after cleaning, the hopper 104 is rotated around a shaft 108 extending in the left-right direction, and the door 109 of the hopper 104 is opened, so that the inside of the hopper 104 is opened from the opening at the rear end of the hopper 104. Dust is discharged. At this time, the upper end portion of the brush case 103 is extracted from the hopper 104, and the thin and soft rubber plate 107 is hung by its own weight. Accordingly, dust in the hopper 104 falls from the through hole 105 of the hopper 104 and adheres to the driving device of the lawn cleaning vehicle 101 or is scattered on the lawn surface. When dust adheres to the driving device, it takes time to clean the lawn cleaning vehicle 101 itself, and when dust is scattered on the lawn surface, it takes time to clean the lawn surface.

Japanese Patent No. 3556499

  The present invention has been made in view of such problems, and a main purpose thereof is to accommodate the cleaned dust in the hopper in the lawn cleaning vehicle having the hopper in which the cleaned dust is stored. When the through hole formed in the bottom portion of the hopper is opened, the dust in the hopper is prevented from falling to the outside from the through hole.

  In order to achieve the above object, a lawn cleaning vehicle according to the present invention is a lawn cleaning vehicle that scoops up dust for cleaning, and is provided rotatably on the vehicle body, and a brush member that scrapes up the dust by rotating. And the brush member is disposed in the hollow portion, and an inlet for introducing the dust scraped up by the brush member into the hollow portion is formed in the lower end portion. In addition, a brush case in which an outlet for leading the dust to the outside of the hollow part is formed at the upper end part and a hollow box shape, a through hole is formed in the bottom part along the vertical direction, and the inside through the through hole. Provided in the vehicle body so as to be movable between an insertion state in which the upper end portion of the brush case is inserted and an extraction state in which the upper end portion of the brush case is extracted from the inside through the through hole. A hopper that accommodates the dust from the outlet, and a lid member that is provided in the hopper so that the through hole can be opened and closed, and that opens the through hole in the insertion state, and closes the through hole in the extraction state; It is characterized by providing.

  Further, in the lawn cleaning vehicle according to the present invention, the through hole is formed on one side in the front-rear direction of the hopper, and the hopper is rotatable about an axis along the left-right direction on the other side in the front-rear direction. Provided in the main body and movable between the insertion state and the extraction state, and the lid member is located on the inner side of the bottom of the hopper on one side in the front-rear direction of the hopper with respect to the through hole. It is provided so as to be rotatable about an axis along the direction, and the through hole can be opened and closed.

  Further, the lawn cleaning vehicle according to the present invention is characterized in that the lid member rotates by its own weight to close the through hole when the hopper rotates from the insertion state to the extraction state. To do.

  Further, the lawn cleaning vehicle according to the present invention further includes a preventing means for preventing the dust from falling from the left and right end portions of the through hole when the hopper rotates from the insertion state to the extraction state. It is characterized by providing.

  According to the lawn cleaning vehicle according to the present invention, since it has a lid member that can open and close the through hole formed in the bottom of the hopper, when the brush case is extracted from the hopper and the through hole is opened, Dust in the hopper can be prevented from falling from the through hole.

  Further, according to the lawn cleaning vehicle of the present invention, the lid member is rotatably provided inside the bottom portion of the hopper on one side in the front-rear direction with respect to the through hole. Therefore, when the brush case is extracted from the hopper by rotating the hopper, it is possible to prevent the dust contained in the hopper from falling from the through hole on one side in the front-rear direction than the through hole. .

  Further, according to the lawn cleaning vehicle according to the present invention, the lid member is rotated by its own weight to close the through hole, so that the dust can be prevented from falling from the through hole with a simple configuration.

  Furthermore, according to the lawn cleaning vehicle according to the present invention, since the prevention means for preventing the dust from falling from the left and right ends of the through hole when the hopper is rotated is provided, the dust can be more reliably dropped from the through hole. Can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic left view which shows one Example of the lawn cleaning vehicle of this invention, and has shown it by making one part into a cross section. It is a schematic exploded perspective view which shows the principal part of the lawn cleaning vehicle of FIG. 1, and has shown the state seen from the downward direction. It is a schematic perspective view which shows the state which looked at the assembly state of each member of FIG. 2 from the front, and one part is abbreviate | omitted and shown. It is a schematic perspective view which shows the state which looked at the assembly state of each member of FIG. 2 from back, and has abbreviate | omitted and shown it. FIG. 5 is a perspective view of the lid member shown in FIGS. 3 and 4 and shows a state viewed from the front. It is a schematic left view which shows the discharge | emission state of the dust of the lawn sweeper of FIG. It is a schematic left view of the conventional lawn garbage truck, and it has shown one part in cross section. It is a schematic left view which shows the discharge | emission state of the dust of the lawn cleaning vehicle of FIG.

  Hereinafter, specific embodiments of the lawn cleaning vehicle of the present invention will be described in detail with reference to the drawings.

  FIG. 1 and FIG. 2 are views showing an embodiment of the lawn cleaning vehicle of the present invention. In the following description, the driver's seat side of the lawn cleaning vehicle 1 of the present embodiment is the front, the hopper side is the rear, and the lawn Let the width direction of the cleaning vehicle 1 be the left-right direction. That is, the left-right direction on the paper surface of FIG. 1 is set as the front-back direction, and the depth direction on the paper surface of FIG.

  In the lawn cleaning vehicle 1 of this embodiment, an operator sits in the driver's seat 3 provided in front of the vehicle body 2, grasps the handle 4, and sweeps up dust such as cut grass while running on the lawn 5. To do. The lawn cleaning vehicle 1 includes a brush member 6 rotatably provided in a lower portion of the vehicle body 2, a hollow brush case 7, a hopper 8 disposed above the brush case 7, and a penetration formed in the hopper 8. And a lid member 10 that can open and close the hole 9.

  As shown in FIG. 1 and FIG. 2, the brush member 6 includes a shaft member 11 that is arranged such that the axis line extends in the left-right direction, a brush 12 that is provided on the shaft member 11, and a blade that is provided on the shaft member 11. 13. The shaft member 11 includes a round bar-shaped shaft portion 14 whose axis is disposed in the left-right direction, and a holding portion 15 for the brush 12 and the blade 13. The holding portion 15 is formed in a substantially octagonal plate shape, and is arranged so that the plate surface is orthogonal to the axis of the shaft portion 14. In the present embodiment, three holding portions 15 are arranged apart from each other in the left-right direction, and are fixed to the shaft portion 14 with the shaft portion 14 penetrating through the plate surfaces. The brush 12 is formed in a straight hair shape, and is disposed in the longitudinal direction at a substantially central portion in the width direction of the base material 16 formed in a rectangular plate shape. The blades 13 are formed by bending a rectangular plate material, and the longitudinal section thereof is formed in a substantially handle collar shape in which the handle is inclined and extended outward.

  As shown in FIG. 1 and FIG. 2, the blade 13 is formed in a stepped portion formed inwardly on every other circumferential surface of each holding portion 15 having an approximately octagonal shape and having eight sides around the shaft. It is fixed along the left-right direction that is the direction of the portion 14. At this time, each blade 13 is fixed to the step portion formed in the holding portion 15 so that the handle portion of the handle rod extends outward, and the handle portion of each blade 13 is fixed. Is disposed on the front side of the rotation direction of the brush member 6 (the direction of arrow A in FIG. 1) with respect to the mating portion of the handle. In addition, the straight hair brush 12 is fixed to the blades 13 while the base material 16 is fixed to the inside of the part of the handle of each blade 13 in a state of being erected on the substrate 16.

  In this way, the brush 12 is provided on the shaft member 11 so as to extend in a direction intersecting with the axis of the shaft member 11, and along the axis direction of the shaft member 11 while extending in a direction intersecting with the axis of the shaft member 11. Thus, the blade member 13 is provided on the shaft member 11 to constitute the brush member 6. As shown in FIG. 1, the brush member 6 of the present embodiment is rotatable around the shaft portion 14, and the handle portion of the handle 13 of the blade 13 is in contact with the brush 12 of the brush member 6. It is arranged on the front side in the rotation direction (counterclockwise in the illustrated example). Further, the brush 12 extends in a direction intersecting the axis of the shaft member 11 from the handle portion of the handle 13 of the blade 13.

  The brush case 7 is formed in a hollow shape, and the brush member 6 having the above-described configuration is disposed in the hollow portion. The brush case 7 of the present embodiment includes a hollow box-shaped case main body portion 17 that is substantially circular in a side view and opened downward, and a substantially rectangular tube that is substantially rectangular in a front view with the left-right direction as a longitudinal direction and opened in the up-down direction. And a communication part 18 having a shape. The case main body portion 17 and the communication portion 18 are connected so that the communication portion 18 protrudes upward from the upper portion of the case main body portion 17. At this time, the case main body portion 17 and the communication portion 18 communicate with each other inside. In this manner, the brush case 7 has an inlet 19 for introducing dust scraped up by the brush member 6 into the hollow portion at the lower end portion, while an outlet 20 for guiding the introduced dust to the outside of the hollow portion. Is formed at the upper end. That is, the downward opening of the case main body 17 is the inlet 19, while the upward opening of the communication portion 18 is the outlet 20.

  As shown in FIG. 1, the brush case 7 is provided at the lower part of the vehicle body 2 between the front and rear wheels 21 and 21. At this time, the brush case 7 is provided such that the inlet 19 opens downward and the outlet 20 opens upward. The brush case 7 is provided with a height adjusting device (not shown) that can adjust the vertical height thereof.

  Also, the brush case 7 is provided with a rubber cover member 22 formed in a rectangular plate shape at the lower end of the front wall surface, the left wall surface, and the right wall surface. The cover member 22 provided on the front wall surface of the brush case 7 has a length in the longitudinal direction corresponding to the left and right lengths of the front wall surface of the brush case 7, and the longitudinal direction is along the left and right direction. It is provided at the lower end of the front wall surface of the case 7 so as to protrude downward from the brush case 7. The cover members 22 provided on the left and right wall surfaces of the brush case 7 respectively correspond to the front and rear lengths of the wall surfaces provided with the length in the longitudinal direction. Is provided so as to protrude downward from the brush case 7. This downward projecting length may be within the range of the maximum vertical movement of the height adjusting device.

  As shown in FIG. 1, the brush member 6 is rotatably provided in the case main body portion 17 of the brush case 7. Specifically, the case main body portion 17 is provided with a bearing, and the shaft portion 14 of the brush member 6 is rotatably held via the bearing. At this time, the brush member 6 is disposed in the case main body portion 17 so that the axis thereof is along the left-right direction. The driving means (not shown) for rotating the brush member 6 is an engine in this embodiment and is provided in the vehicle main body 2. An endless V-belt is wound around the engine pulley of the engine and the intermediate shaft pulley of the intermediate shaft provided in the vehicle body 2. Further, an endless V-belt is wound around the intermediate shaft pulley and a brush pulley provided at one axial end portion of the shaft portion 14 of the brush member 6 (right end portion of the shaft portion 14 in this embodiment). . In this manner, the brush member 6 is held in the brush case 7 so as to be rotatable about its axis, and the brush member 6 is rotated in the arrow A direction, which is the counterclockwise direction in FIG. 1, by the power from the engine. be able to.

  The hopper 8 is formed in a hollow box shape. As shown in FIG. 1, the hopper 8 of the present embodiment includes a substantially rectangular box-shaped hopper main body 23 that opens to the rear surface and has a hollow portion, and a door 24 that opens and closes the opening of the hopper main body 23. The When the door 24 is closed (the state shown in FIG. 1), the gap between the hopper body 23 and the door 24 is sealed with a gap tape (not shown) interposed therebetween. In this embodiment, the shaft 25 is held by the left and right support portions 26 provided at the rear upper end portion of the hopper body 23, and the swing portion 27 provided at the upper end portion of the door 24 is rotated around the shaft 25. The upper end portion of the door 24 is held so as to be movable, so that the upper end portion of the door 24 is rotatable around a shaft 25 extending in the left-right direction of the hopper body 23.

  A through hole 9 opened in the vertical direction is formed at the bottom of the hopper 8 formed to be inclined upward toward the front. As shown in FIG. 2, the through hole 9 has a substantially rectangular shape with the left-right direction as the longitudinal direction, and is formed at the front end of the bottom portion of the hopper body 23 that is one side of the hopper 8 in the front-rear direction.

  The hopper 8 is provided in the vehicle main body 2 above the brush member 6 and the brush case 7. At this time, the hollow box-like hopper 8 is inserted into a state where the upper end portion of the brush case 7 (the upper end portion of the communication portion 18) is inserted into the hopper 8 through the through hole 9 formed in the bottom portion ( 1) and the vehicle main body 2 are provided so as to be movable between the inside of the hopper 8 and the extracted state (FIG. 6) in which the upper end of the brush case 7 is extracted from the through hole 9. In the present embodiment, a shaft 28 is held in the left-right direction on a support portion 29 provided at the rear end portion of the vehicle body 2, and a swing provided on the lower end portion on the rear side of the hopper 8 on the shaft 28. The rear end of the hopper 8 on the other side in the front-rear direction is provided in the vehicle main body 2 so as to be rotatable about the axis 28 along the left-right direction. It is possible to move to the extracted state.

  The hopper 8 is rotated by the cylinder 31. In other words, the cylinder 31 is provided at the rear end portion of the vehicle body 2, and the tip end portion of the rod 32 is provided at the lower end portion of the hopper 8. At this time, the base end portion of the cylinder 31 is rotatably held by a shaft 33 provided in the vehicle body 2 along the left-right direction, and the tip end portion of the rod 32 is the rod mounting portion 34 at the lower end portion of the hopper 8. The shaft 35 is provided so as to be rotatable along the left-right direction. Thereby, the hopper 8 can be rotated from the insertion state to the extraction state and from the extraction state to the insertion state by expansion and contraction of the rod 32 of the cylinder 31.

  The lid member 10 is provided in the hopper 8 so that the through hole 9 can be opened and closed. FIG. 5 is a perspective view of a lid member included in the lawn cleaning vehicle of the present embodiment, and shows a state viewed from the front. The lid member 10 of the present embodiment includes a substantially rectangular plate-shaped lid body portion 36, an attachment portion 37 to the hopper 8 of the lid body portion 36, and a connection portion 38 between the lid body portion 36 and the attachment portion 37. .

  The lid main body portion 36 has a substantially rectangular plate shape with the left-right direction as the longitudinal direction, and is formed by bending so that the upper end portion is inclined upward as it goes forward, and the lower end portion is formed by bending forward. ing. The lid main body 36 has a left and right length and a vertical length that can close the through hole 9 formed in the hopper 8. The attachment portion 37 is formed in a cylindrical shape, and is disposed below the lid main body portion 36 so as to be separated from each other in the left-right direction. The connecting portion 38 is formed in a substantially rectangular plate shape whose longitudinal direction is the vertical direction, and is provided in the lid main body portion 36 so as to be separated from each other in the left-right direction. At this time, each connection portion 38 is provided with a rear surface in contact with the front surface of the lid main body portion 36, and a lower end portion penetrates a bent portion forward of the lower end portion of the lid main body portion 36. A cylindrical attachment portion 37 is fixed to the lower end portion of each through portion. At this time, the mounting portions 37 and 37 are disposed on the same axis line with the axial direction extending in the left-right direction.

  As shown in FIGS. 1 and 3, the lid member 10 is a shaft extending in the left-right direction inside the bottom of the hopper 8 on the front side, which is one side in the front-rear direction of the hopper 8 with respect to the through hole 9 of the hopper 8. It is provided so as to be rotatable around 39 so that the through hole 9 can be opened and closed. In this embodiment, the shaft 39 is provided in the hopper 8 via the shaft support member 40 and penetrates the cylindrical mounting portion 37 of the lid member 10.

  The lawn cleaning vehicle 1 of the present embodiment further includes prevention means 43 that prevents dust in the hopper 8 from falling from the left and right ends of the through hole 9 to the outside. The prevention means 43 of the present embodiment is formed in a plate shape, and is erected on the inner surface of the bottom of the hopper 8 at both left and right ends of the through hole 9. Of the prevention means 43 arranged at the left and right ends of the through hole 9, the prevention means 43 arranged on the left side is a substantially rectangular plate shape whose longitudinal direction is the front-rear direction, and the lower end portion is bent leftward. The bent portion is fixed to the inner surface of the hopper 8 with a screw or the like. Similarly, the prevention means 43 disposed on the right side of the through hole 9 is also fixed to the inner surface of the hopper 8 with a screw or the like.

  As shown in FIGS. 1 and 4, inside the hopper 8, a thin and soft rubber plate 44 is provided in the hopper 8 of the communicating portion 18 of the brush case 7 at the rear end portion of the through hole 9. It is provided so as to lean against the protruding portion. In this embodiment, the plate member 44 is formed in a substantially rectangular plate shape with the left-right direction as the longitudinal direction, and the left-right length is substantially the same as the left-right length of the through hole 9 formed in the hopper 8. Is formed smaller than the width of the through hole 9. This plate member 44 is formed on the inner surface of the bottom portion of the hopper 8 with one end in the short direction sandwiched between a plate-shaped mounting member 45 having a generally U-shape in side view and a plate-shaped mounting member 46 having a substantially U-shape in side view. Provided. Here, the one end in the short direction of the plate member 44 is provided between the attachment member 45 and the attachment member 46, and a bolt is provided so as to penetrate the attachment member 45 and the attachment member 46. It is sandwiched between. In addition, the mounting member 45 is fixed to the inner surface of the bottom of the hopper 8 by welding or the like, with the other plate piece tilting upward with respect to the one plate piece as it goes forward.

  Next, the cleaning operation of the lawn cleaning vehicle 1 of the present embodiment will be described. The lawn cleaning vehicle 1 can clean the lawn 5 while traveling forward on the lawn 5. The lawn 5 is cleaned by rotating the brush member 6 disposed inside the brush case 7. At the time of cleaning, as shown in FIG. 1, the upper end portion of the brush case 7 is inserted into the hopper 8 through the through hole 9 (the insertion state).

  In this state, the brush member 6 is rotated counterclockwise (arrow A direction) in FIG. 1 by the power from the engine, that is, by rotating in the opposite direction to the front and rear wheels 21, 21. 5 can be scraped up by the brush 12 of the brush member 6. The dust that has been scraped up is introduced into the brush case 7 through the inlet 19 formed in the brush case 7 and then led out to the outside through the outlet 20 formed in the brush case 7. That is, the scraped dust is introduced into the case main body 17 and then led out of the brush case 7 inside the hopper 8 through the communication portion 18. The dust discharged from the outlet 20 of the brush case 7 is accommodated in the hopper 8 because the upper end portion of the brush case 7 is inserted into the hopper 8. Thus, by rotating the brush member 6, dust can be picked up and accommodated in the hopper 8. As described above, since the brush member 6 has the plate-like blades 13, the air volume can be increased when the brush member 6 rotates. Thereby, the dust on the lawn 5 can be raised more reliably and can be carried into the hopper 8 more reliably.

  At the time of cleaning, that is, when the front side of the hopper 8 is not lifted by the cylinder 31, the lid member 10 leans against the front upper end portion of the communication portion 18 of the brush case 7 inserted into the hopper 8, and is made of rubber. The plate material 44 leans against the rear upper end portion of the communication portion 18 of the brush case 7. At this time, the left and right ends of the lid member 10 and the plate material 44 are in contact with or in close proximity to the inner surface of the plate-like prevention means 43. Thereby, the dust accommodated in the hopper 8 at the time of cleaning can be prevented from falling to the outside from the gap between the communication portion 18 of the brush case 7 and the through hole 9. Further, as shown in FIG. 1, when the lid member 10 and the plate material 44 are leaning against the communication portion 18 of the brush case 7, the upper end portion of the lid member 10 extends upward from the upper end portion of the plate material 44. Yes.

  FIG. 6 is a schematic left side view showing a dust discharge state of the lawn sweeper of the present embodiment, and a part thereof is shown in cross section. As shown in this figure, after the cleaning is completed, when the dust stored in the hopper 8 is discharged to the outside, the cylinder 31 is operated to move the hopper 8 around the shaft 28 in the counterclockwise direction in FIG. Turn to. Further, the door 24 of the hopper 8 is opened by rotating around the shaft 25 in the clockwise direction in FIG. Thereby, the dust in the hopper 8 is discharged outside from the rear opening of the hopper body 23.

  During the rotation of the hopper 8, the communication part 18 of the brush case 7 is pulled out from the hopper 8, and the lid member 10 rotates about the shaft 39 counterclockwise in FIG. 6. At the same time, the plate material 44 is bent forward due to its flexibility. When the communication part 18 of the brush case 7 is extracted from the hopper 8, the lid member 10 comes into contact with the bent plate material 44, and the through hole 9 formed in the hopper 8 is closed by the lid member 10. It is done. At this time, the left and right end portions of the lid member 10 are in contact with or in close proximity to the inner surfaces of the prevention means 43 disposed at the left and right end portions of the through hole 9, respectively.

  In this manner, the lid member 10 opens the through hole 9 in the insertion state in which the communication portion 18 of the brush case 7 is inserted into the hopper 8, while the communication portion 18 of the brush case 7 is removed from the hopper 8. In the extracted state, the through hole 9 is closed. Here, since the lid member 10 has the above-described configuration, when the hopper 8 rotates from the insertion state to the extraction state, the lid member 10 rotates by its own weight from the state where it leans against the communication portion 18 of the brush case 7. By moving, the through hole 9 formed in the hopper 8 can be closed. Further, since the plate-like prevention means 43 is erected on the left and right ends of the through hole 9 of the hopper 8 as described above, when the hopper 8 rotates from the insertion state to the extraction state, The dust in the hopper 8 can be prevented from falling to the outside from the gap between the inside of the through hole 9 and the outside of the brush case 7 at both left and right end portions of the through hole 9.

  After discharging the dust from the hopper 8, the cylinder 31 is operated to rotate the hopper 8 around the shaft 28 in the clockwise direction in FIG. At this time, the upper end portion of the brush case 7 is inserted into the hopper 8 through the through hole 9. Accordingly, the upper end portion of the brush case 7 contacts the lid member 10 and the lid member 10 rotates around the shaft 39 in the clockwise direction in FIG. 6 and the upper end portion of the brush case 7 is bent forward. The plate material 44 is brought back into the hopper 8 while coming into contact with 44.

  When the communicating portion 18 of the brush case 7 is inserted into the hopper 8, the lid member 10 leans against the front upper end portion of the brush case 7 and the plate material 44 is placed on the rear upper end portion of the brush case 7. Leaning. At this time, as described above, the left and right end portions of the lid member 10 and the left and right end portions of the plate member 44 are brought into contact with or close to the inner surface of the prevention means 43 disposed at the left and right end portions of the through hole 9. Further, the door 24 of the hopper 8 is turned around the shaft 25 in the counterclockwise direction in FIG. In this way, the lawn cleaning vehicle 1 is returned to the insertion state shown in FIG. 1 from the extracted state shown in FIG. 6, and the lawn 5 can be cleaned.

  According to the lawn cleaning vehicle 1 of the present embodiment, when the brush case 7 is extracted from the hopper 8, the through hole 9 of the hopper 8 can be closed by the lid member 10, so that the dust in the hopper 8 It can prevent falling through the through-hole 9 downward. Therefore, it does not take time to clean again the dust that has fallen onto the lawn 5 from the through hole 9, and it does not take time to clean the dust that has adhered to the lawn cleaning vehicle 1. Further, according to the lawn cleaning vehicle 1 of the present embodiment, the lid member 10 can be rotated in front of the through hole 9, so that the dust contained in the hopper 8, particularly from the through hole 9. Moreover, it can prevent that the dust accommodated in the front side falls.

  Moreover, according to the lawn cleaning vehicle 1 of the present embodiment, the lid member 10 rotates around the shaft 39 and closes the through hole 9 by its own weight, and the lid member 10 is formed in a plate shape. The dust can be prevented from falling from the through hole 9 with a simple configuration. Furthermore, according to the lawn cleaning vehicle 1 of the present embodiment, since the prevention means 43 is provided, it is possible to prevent the dust from falling from the left and right end portions of the through hole 9, and the dust contained in the hopper 8. The fall from the through hole 9 can be prevented more reliably. Moreover, since the prevention means 43 is formed in a plate shape, a simple configuration can be achieved.

  The lawn cleaning vehicle of the present invention is not limited to the configuration of the above embodiment, and can be changed as appropriate. For example, the lid member 10 is not limited to the configuration of the above embodiment, and may be any configuration that can open and close the through hole 9. Moreover, in the said Example, although the prevention means 43 was formed in plate shape, it is not limited to this. Furthermore, the brush member 6 is not limited to the structure of the said Example, What is necessary is just a structure which can scrape up dust and can accommodate it in the hopper 8. FIG.

DESCRIPTION OF SYMBOLS 1 Lawn cleaning vehicle 2 Vehicle main body 6 Brush member 7 Brush case 8 Hopper 9 Through hole 10 Lid member 19 Inlet 20 Outlet 28 Axis 39 Axis 43 Prevention means

Claims (4)

A lawn sweeper that sweeps up dust and cleans it,
A brush member that is rotatably provided in the vehicle body, and scrapes up the dust by rotating;
It is formed in a hollow shape, the brush member is disposed in the hollow portion, and an inlet for introducing the dust scraped up by the brush member into the hollow portion is formed in the lower end portion, while the introduced A brush case in which an outlet for guiding dust to the outside of the hollow portion is formed at the upper end;
In a hollow box shape, a through hole is formed in the bottom portion along the vertical direction, and the upper end of the brush case is inserted into the inside through the through hole, and the inside from the inside through the through hole A hopper that is provided in the vehicle body so as to be movable to an extracted state in which an upper end portion of the brush case is extracted, and that accommodates the dust from the outlet;
A lawn cleaning vehicle, comprising: a lid member that is provided in the hopper so that the through hole can be opened and closed, and that opens the through hole in the inserted state, and closes the through hole in the extracted state. The through hole is formed on one side in the front-rear direction of the hopper,
The hopper is provided in the vehicle main body so that the other side in the front-rear direction is rotatable about an axis along the left-right direction, and is movable between the insertion state and the extraction state,
The lid member is provided on one side of the hopper in the front-rear direction with respect to the through-hole so as to be rotatable about an axis extending in the left-right direction inside the bottom of the hopper so that the through-hole can be opened and closed. The lawn sweeper according to claim 1. The lawn cleaning vehicle according to claim 2, wherein the lid member is rotated by its own weight to close the through hole when the hopper rotates from the insertion state to the extraction state. The said hopper is further equipped with the prevention means which prevents that the said dust falls from the right-and-left both ends of the said through-hole, when rotating from the said insertion state to the said extraction state. Item 3. A lawn sweeper.

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