JP2003235321A - Weeder for mowing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To certainly remove the cut grass clogging the exhaust port for mowing machine. <P>SOLUTION: A plurality of rotary grass-cutting blades 50,... which are arranged in parallel in the lateral direction are covered with decks 27 and the exhaust port 55 for exhausting the grass cut by the cutting blades 50 backward is provided at the center on the back side of the deck 27. On the front side of the exhaust port 55 in the deck 27, the left and right exhaustion paths 62a, 62b are constructed for sending the cut grass from both left and right of the deck 27 to the exhaust port 55, and grass-scraping plates 64, 64 which are provided substantially across the width of the left and right exhaustion paths 62a, 62b so that the scraping plates 64, 64 may be made movable from the escape position to the projected position. The clogging cut grass in agglomeration can be securely removed. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grass removing device for a mower.

[0002]

2. Description of the Related Art In a conventional mower, a plurality of rotary cutting blades arranged side by side in the left-right direction are covered with a deck which is a cover body, and a central part of the rear side of the deck is a grass clipped by the rotary cutting blade. Is provided in the rearward direction, and the scraping bars 66, ... Are arranged facing each other at predetermined intervals as shown in FIG.
Is provided.

[0003]

Problems to be Solved by the Invention When the scraping rods 66 ,. Was removed and most of the grass remained in the form of lumps. Therefore, the present invention is intended to solve such a problem.

[0004]

According to a first aspect of the present invention, a mower is constructed by covering the upper and side of a plurality of rotary cutting blades 50, ... Which are arranged in parallel in the left-right direction with a deck 27 which is a cover body. Two
The mowing machine 2 is attached to the moving vehicle 1 so as to be able to move up and down, and a discharge port 55 for discharging the grass cut by the rotary cutting blades 50, ... It is characterized in that a wide plate-shaped scraping plate 64 facing the discharge port 55 can be moved to a position protruding from a position retracted from the discharge port 55.

The operation of the invention described in claim 1 is as follows. A plurality of rotary cutting blades 5 arranged side by side in the left-right direction
The grass mowed with 0, ... Is sent from the left and right sides of the deck 27 toward the discharge port 55 at the center of the rear side and discharged rearward. The plate-shaped scraping plate 64, which is provided in a wide width facing the discharge port 55, is moved to a position projecting from the retracted position of the discharge port 55, so that the discharge port 55 is clogged and clogged. The grass can be removed.

According to the second aspect of the present invention, the grass mower 2 is constructed by covering the upper side and the lateral side of the plurality of rotary cutting blades 50, ... Mount the mower 2 on the moving vehicle 1 so that it can move up and down, and the deck 27
A discharge port 55 for discharging the grass cut by the rotary cutting blade 50, to the rear is provided in the center of the rear side of the rear, and the front side of the discharge port 55 in the deck 27 is rotated and cut from both left and right sides of the deck 27. A plate-shaped scraping plate that forms left and right discharge passages 62a and 62b for feeding grass cut by the blades 50 to the discharge port 55, and is wide provided facing the left and right discharge passages 62a and 62b. It is characterized in that the 64, 64 can be moved and operated to a position protruding from a position retracted with respect to the discharge port 55.

The operation of the invention of claim 2 is as follows. A plurality of rotary cutting blades 50 arranged side by side in the left-right direction,
The grass mowed in ... is left and right discharge passages 62a and 62b.
Then, it is sent to the discharge port 55 and discharged rearward. left·
The plate-shaped scraping plates 64, 64 provided to face the right discharge passages 62a, 62b are moved to a position projecting from the retracted position of the discharge port 55, thereby clogging the discharge port 55. The grass can be removed.

[0008]

According to the invention of claim 1, the discharge port 55 of the mower is provided.
The grass that has become clumped and clogged can be reliably removed. According to the second aspect of the present invention, wide plate-shaped scraping plates 64, 64 are provided in the left / right discharge passages 62a, 62b in the deck 27.
Since it is configured such that the left and right discharge passages 62a and 62b can be removed over a wide range while reducing the operation load of the scraping plates 64 and 64, the grass can be removed and moved separately.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. A mowing machine 2 for mowing grass and grass from the ground surface is attached to the lower middle part of the moving vehicle 1 such as a tractor in a vertically movable manner, and the invention is folded into the mowing discharge part of the mowing machine 2 which is this working machine. This will be described below.

The moving vehicle 1 is a four-wheeled vehicle type tractor as shown in the figure, and has a pair of left and right main frames 3 and 3 arranged in the front-rear direction in the lower portion of the machine body. The main frames 3 and 3 are welded to the body at the intermediate portion in the front-rear direction.
The left and right rear wheels 4 and 4 are widened so that the left and right rear wheels 3 and 4a are close to each other.

The main frames 3 and 3 each have a narrow front side portion, and the engine 5 is mounted above the front portion. A front axle 6 is attached to the front lower portion of the main frames 3, 3 so as to be swingable right and left around a center pivot, and left and right front wheels 8, via king pins 7 at both ends of the front axle 6,
The steering wheel 9 is used to steer the left and right front wheels 8 and 8. Further, between the left and right rear main frames 3a, 3a, a rear axle 11 on which the left and right rear axles 10, 10 are mounted, and a traveling transmission case 12 are attached. And left and right rear axle 1
Left and right rear wheels 4, 4 are attached to both ends of 0, 10.

A side stay 13 is connected to the front ends of the main frames 3 and 3, and right and left columns 14 and 14 having a square cross section are fixed to the rear ends of the rear main frames 3a and 3a in an upright direction in the vertical direction. There is. The upper part of the columns 14, 14 and the rear main frame 3
A reinforcing frame (not shown) is connected between a and 3a to increase the strength.

The outer peripheral portion of the engine 5 is covered with a bonnet 16 and a side cover 17, and the steering handle 9 is arranged above the rear portion of the bonnet 16. A fender 19 with a seat 18 is arranged above the left and right rear wheels 4, 4, and the main frames 3, 3 and the rear main frame 3a are provided in the space between the front edge of the fender 19 and the side cover 17. ，
Step 20 is provided so as to cover 3a closely.

The engine 5 has a crankshaft arranged rearward and downward along the front-rear direction. A take-out shaft protruding forward is provided at the front of the engine 5 and a drive pulley 21 is attached to the rear of the engine 5 for traveling. A first PTO shaft 22 is provided. Also,
The center axis direction of a center pivot shaft (not shown) that pivotally supports the right and left intermediate portions of the front axle 6 is parallel to the crankshaft, and the driven pulley 24 is attached to the rear end of the front end portion of the center pivot shaft (not shown). The portion serves as the second PTO shaft 25 for driving the working machine and projects rearward. A rotation transmitting tool 26 such as a belt is wound between the drive pulley 21 and the driven pulley 24, and the rotation of the second PTO shaft 25 is turned on / off via a clutch (not shown).

The work input shaft 29 of the work transmission case 28 provided above the central portion of the deck 27 of the mower 2.
And the second PTO shaft 25 through a universal joint 30. Left and right front and rear lifting links 3 on the aircraft
The front ends of 1, 31 are pivotally supported, and the front and rear lifting links 31, 3
1 is pivotally supported on the deck 27 of the mower 2 at one rear end, and one of the rear lifting links 31 is connected to the lift arm 32 and the lift link 3.
3 and the hydraulic cylinder 34, which is an elevating actuator, expands and contracts to operate the mowing machine 2 up and down. In front of and behind the mower 2, a pair of left and right gauge wheels 35, 35 for adjusting the height of the deck 27 at the time of descending ground contact are provided so as to swing freely.

Inside the rear main frames 3a, 3a, a traveling transmission case 12 is attached with a right offset. An HST case 36 in which a so-called HST device, which is a hydrostatic power drive transmission device including a pump and a motor, is installed is attached to the front side of the traveling transmission case 12. On the upper part of the HST case 36, a traveling input shaft 37 is mounted so as to extend forward, and the first input portion 37 projects rearward from the engine 5.
Power is transmitted from the PTO shaft 22 to the traveling input shaft 37 via the traveling universal joint 30a. This running input shaft 37
To drive the pump, adjust the swash plate to output the motor at a predetermined number of revolutions, transmit it to the various gear groups in the transmission case 12 for traveling, and perform forward and backward or high and low speed shifts. It is configured to travel by transmitting to the right rear wheels 4 and 4.

A blower case 39 containing a blower 38 is attached between the left and right support columns 14 and 14, and the blower case 3 is provided.
An intake pipe 40 is provided obliquely downward from the front wall portion of the blower 38 facing the front of the blower 38 toward the front. Intake cylinder 40
The intake port at the front end of the shooter is opened in the shape of a wide square in a front view, and a square-shaped shooter 41 having a wide cross section is provided so as to project rearward from the rear portion of the deck 27 of the mowing machine 2. Is connected to the intake port of the intake cylinder 40.
The front end of the shooter 41 is vertically rotatably attached to the rear portion of the deck 27 via a hinge, and the shooter 41 also moves up and down as the deck 27 moves up and down.

A transfer cylinder 43 is attached to the upper part of the blower case 39 so as to face upward, and the tip of the transfer cylinder 43 communicates with the upper part of a collector 44 which is a storage container. A cover case 45 is attached to the rear wall surface of the blower case 39 to cover the transmission device for driving the blower 38. Cover case 45
Inside, a transmission device including a pulley and a belt is installed, and a blower input shaft (not shown) is mounted so as to project forward from the upper portion of the blower case 39. A blower drive shaft 47 is mounted rearward, and the blower drive shaft 47 and a blower input shaft (not shown) are transmitted through a universal joint 30b for a blower.

Due to the rotation of the blower 38, the suction cylinder 40 has a negative pressure and the shooter 41 also has a negative pressure, so that the blower 38 sucks the cut grass in the deck 27.
It is conveyed from the conveying cylinder 43 to the collector 44. Collector 44
When the turf grass stored in is full, the lid 48 is opened and discharged.

Next, the mower 2 will be described. Below the front wheels 8 and 8 and the rear wheels 4 and 4 of the main frames 3 and 3, the lawn mower 2 is movably mounted via four left and right front and rear raising and lowering links 31, 31 ,. 2, a central drive shaft 49a is provided at the front part in the left-right direction, and left and right drive shafts 49b, 49c are provided vertically at the rear parts on both left and right sides, and the central drive shaft 49a is used as the apex for left-right drive. The shafts 49b, 49c are arranged in a substantially isosceles triangular shape, and rotary cutting blades 50, ... Are attached to the lower ends of the respective drive shafts to form a mowing device.

The rotational loci of these rotary cutting blades 50, ... Project more to both sides than the front wheels 8, 8 and the rear wheels, and the intervals between the adjacent rotary cutting blades 50 ,. However, the rotary blade 50 in the center is the rotary blades 50, 50 on the left and right.
It is located in front of the rotary cutting blade 5 when viewed from the front.
The tips of 0, ... will overlap each other by a certain size,
There is no leftover cut.

In FIG. 3, the left drive shaft 49b and the central drive shaft 49
"a" rotates counterclockwise as viewed from the bottom, and the right drive shaft 49c rotates clockwise. The rotary cutting blades 50, ... Are propeller-shaped flat plates, the central portion in the longitudinal direction is attached to the drive shaft, and the cutting blade is formed at the rotation front edge of the outer periphery of the flat plate, and the grass is scattered at the rotation rear side edges. It constitutes the vane plate for discharging.
The drive shafts are transmission-coupled by a cutting blade transmission device 53 composed of a pulley and a transmission belt so as to rotate at the same angular velocity.

An outer peripheral wall 54 for guiding the cut turfgrass is provided on the outer peripheral portion of the rotary cutting blades 50, ... The rotation direction of the rotary cutting blade 50 of the left drive shaft 49b and the rotary cutting blade 50 of the central drive shaft 49a is counterclockwise in bottom view, and the discharge port 55 for the cut grass is behind the rotary cutting blade 50 of the central drive shaft 49a. I am trying.

The front side wall portion of the outer peripheral wall 54 is made to approach in a circular arc shape so as to follow the front outer peripheral portions of the left rotary cutting blade 50 and the central rotary cutting blade 50 which rotate in the same direction, and the ends thereof are mutually adjacent. First, connect it and connect it to the outlet 55.
The discharge guide plate 57 is provided as an extension, and the turfgrass cut by the rotary cutting blade 50 on the left side and the rotary cutting blade 50 at the center is separately discharged from the discharge port 5
We are guiding you to 5. The rear side wall portion of the outer peripheral wall 54 is approached at equal intervals from the rotation locus of the rotary cutting blades 50, ..., And the end portion from the center thereof is exposed to the discharge port 55.

Further, the front side wall portion of the outer peripheral wall 54 is formed into an arc shape so as to follow the front outer peripheral portions of the right rotary cutting blade 50 and the central rotary cutting blade 50 which rotate in opposite directions in bottom view, A second discharge guide plate 58 is provided such that its ends are connected to each other and the rear end of the connection part is directed to the discharge port 55, and the second discharge guide plate 58 is relatively disposed between the end part and the discharge port 55. A wide merging space 59 is formed and the rotary cutting blade 50 on the right side is formed.
Also, the turf grass cut by the rotary cutting blade 50 in the center is guided to the discharge port 55 while being merged.

The rotary cutting blades 50, ..., Outer front and rear outer sides, left and right outer sides, and ceiling portions of the front side wall and the rear side wall of the outer peripheral wall 54 are covered with a deck 27. A rear deck air passage 60 is connected to the discharge port 55 of the deck 27, the end portion thereof is connected to the shooter 41, and the cut grass is fed from the rear deck air passage 60 to the blower case 39 via the shooter 41. .

Next, a grass clogging removing device provided at the discharge port 55 of the deck 27 will be described with reference to FIGS. The rear outer peripheral wall 54 along the rear outer periphery of the central rotary cutting blade 50
a, and the discharge port 55 is provided at both left and right ends of the rear outer peripheral wall 54a.
The left and right discharge guide plates 61a and 61b facing toward the left side, and the left and right discharge passages 62a and 62b are formed on the side of the left and right discharge guide plates 61a and 61b.
It is configured such that it is guided to the discharge port 55 via a, and the cut grass of the center and right rotary cutting blades 50 is guided to the discharge port 55 via the right discharge passage 62a.

A deck rear air passage 60 is connected to the discharge port 55 of the deck 27, and a horizontal support shaft 63 is provided above the discharge port 55 of the deck 27. The support shaft 63 has left and right discharge passages 62a, A wide plate-shaped scraping plate 64 is attached to a portion facing 62b, and as shown by the arrow from the state where the scraping plate 64 is retracted above the discharge port 55, it passes through the discharge port 55 and follows the deck bottom plate 27a. It is provided so as to rotate to the front side, and an operation lever 65 is attached to the support shaft 63.

In connection with the rotation of the scraping plate 64,
The deck bottom plate 27a may be opened and rotated so that the scraped grasses are discharged downward. Further, as shown in FIG. 3, in the case where a large space is interposed between the rear part of the central portion of the rotary cutting blades 50, ... The plate 64 to the outlet 55
May be provided over the entire width of.

When a mowing operation is carried out by a mowing machine, the discharge port 55 of the deck 27 may be clogged with lumps of grass. For example, the scraping rods 6 attached to the support shaft 63 at predetermined intervals as shown in FIG.
When scraped out with 6, ..., only the grass in the portion where the scraping rod 66, ... Has passed is removed, and most of the grass remains in the form of lumps.

However, by using the wide plate-shaped scraping plate 64 as in the above-described embodiment, it is possible to surely remove the lumped grass from the discharge port 55. Further, as shown in FIGS. 6 and 7, the rear outer peripheral wall 54a is arranged along the rear outer periphery of the central rotary cutting blade 50, and the rear outer peripheral wall 5 is provided.
Left and right discharge guide plates 61a and 61b are attached to the left and right ends of 4a so as to be closer to the center toward the rear side, and left and right discharge passages 62a and 62 are provided on the sides of the left and right discharge guide plates 61a and 61b.
In the configuration of b, the cut grass from the rotary cutting blade 50 is discharged to the discharge port 55 while being moved toward the center through the left and right discharge passages 62a and 62b.
The support shaft 6 is provided so as to be orthogonal to the grass discharge direction on a and 62b.
3, 63 may be provided, and wide scraping plates 64, 64 and operating levers 65, 65 may be attached to the support shafts 63, 63, respectively. The left and right support shafts 63, 63 may be connected by a joint, a single operation lever 65 may be attached to one of the support shafts 63, and the left and right scraping plates 64, 64 may be opened and closed.

Then, the left and right discharge passages 62a, 62b
The scraping plate 64 can be provided over a wide range of the deck 2 while reducing the weight of the operating lever 65.
The grass clogged in the discharge port 55 of 7 can be removed in a wide range. Next, another embodiment of the transmission structure of the rotary cutting blades 50 of the mower will be described with reference to FIG.

Between the work input shaft (not shown) of the work transmission case 28 provided above the central portion of the deck 27 of the mower 2 and the intermediate PTO shaft (not shown) of the traveling transmission case 12 are freely movable. The work is transmitted via a joint (not shown), and an input pulley 67 is pivotally supported above the work transmission case 28. Further, above the deck 27, the central pulley 68a, the left pulley 68b, the right pulley 68c attached to the central drive shaft 49a, the left drive shaft 49b, and the right drive shaft 49c, the first tension pulley 69, and the second tension pulley 69 A tension pulley 70 is provided so that these pulleys 68a, 68a
The transmission belt 71 is wound around b, 68c, 69 and 70,
The center pulley 68a, the left pulley 68b and the right pulley 68c are configured to rotate clockwise in a plan view, and the grass mowed by the rotary cutting blades 50, ... Is discharged from the discharge port 55 on the right side of the deck 27. Is configured.

Further, as shown in FIG. 9, the central pulley 68
A single transmission belt 71 may be wound around the a, the left pulley 68b, the right pulley 68c, the first tension pulley 69, the second tension pulley 70, and the third tension pulley 72. In the conventional device, the input pulley 67 and the central pulley 68a are transmitted by the first transmission belt, and the left and right pulleys 68b, 68c are moved from the central pulley 68a.
Since it is configured to be transmitted by the second transmission belt, and is transmitted by the upper and lower transmission belts, there is a problem that the transmission space becomes high and the mower interferes with the lower part of the tractor body and cannot be lifted high.

However, in this embodiment, the input pulley 67,
Since the single transmission belt 71 is wound around the central pulley 68a and the left / right pulleys 68b and 68c to transmit the power, the power transmission space can be reduced and the mower can be lifted high. next,
Another embodiment of the rotary cutting blade 50 will be described with reference to FIG.

The rotary cutting blades 50, ... Are composed of a propeller-shaped flat plate, the central portion in the longitudinal direction is attached to the drive shaft, and the cutting blade 51 is formed at the rotation front edge of the outer peripheral portion of the flat plate. A blade plate 52 that scatters and discharges turfgrass is formed at the edge portion. The blade plate 52 is configured to be bent from the inner peripheral side and bent so as to stand higher toward the outer peripheral side, and in a front view, an inner end of the blade plate 52 is gently inclined along the rotary cutting blade 50, The middle part is largely bent and the outer peripheral part is gently inclined, and when viewed from the longitudinal direction of the rotary cutting blade 50, the cutting blade 51 and the blade plate 52 are configured to be joined by a curved line. There is.

However, since the inner end portion of the blade plate 52 is constructed to be low along the rotary cutting blade 50, the load resistance of the grass is reduced to prevent the rotation speed from decreasing, and the outer peripheral side is high. You can prevent grass clogging by repelling grass at the standing part. Next, another embodiment of the tractor will be described with reference to FIGS.

In this tractor, the left and right front wheels 8 and 8 are idle wheels, and the left and right rear wheels 4 and 4 are drive wheels. Then, the left and right support arms 74 and 74 supporting the left and right front wheels 8 and 8 are vertically movably supported by the front wheel arms 73 and 73 extending from the front portion of the vehicle body, and the spring 75 is interposed. There is.

As shown in FIG. 12, the transmission structure is such that the output shaft 74 of the engine 5 is transmitted through a transmission shaft to a transmission box 75 containing an HST (hydrostatic power drive continuously variable transmission) and a transmission box 75. Power transmitted to the bevel gear 77 is transmitted to the bevel gear 77 via the pinion gear 76, and the bevel gear 77 can be braked by the main brake device 78. Power is transmitted from the bevel gear 77 to the single rear axle shaft 81 via the transmission gears 79, 80, and the left and right reverse rotation clutches 82, 82 (inner side) in the left and right axle cases are fed from both ends of the rear axle shaft 81. Conversion clutch 8
The power is transmitted to the left and right rear wheels 4 and 4 via the gears 3 and 83 (outside) and the planetary gear mechanisms 84 and 84.

The forward rotation clutches 83, 83 are constructed so as to be constantly crimped by the disc spring 85. In the crimped state,
A structure in which the sun gears of the planetary gear mechanisms 84, 84 integrated with the drive side clutch plates of the forward rotation clutches 83, 83, the planetary gears meshing with the sun gears, and the carrier integrated with the driven side clutch plates integrally rotate about the sun gear. Is. As a result, power is transmitted to the driven sun gear that rotates integrally with the bevel gear 77 and to the driven sun gear at a rotation ratio of 1: 1.

When pressure oil is fed into the cylinder chambers of the reverse clutches 82, 82, the pressure contact of the clutch plates is released little by little, resulting in a difference in rotation between the driving side clutch plate and the driven side clutch plate. The generated rotational power is transmitted to the sun gears of the planetary gear mechanisms 84, 84, and the rear wheels are decelerated and rotated. Further, when pressure oil is further sent to the cylinder chambers of the reverse rotation clutches 82, 82, the pressure contact of the reverse rotation clutch plates is completely released, and the rotation of the sun gear of the planetary gear mechanisms 84, 84 becomes zero. When the driving force is transmitted, the driving side clutch plate and the driven side clutch plate of the reverse rotation clutch 82, 82 are sequentially pressed against each other, and the reverse rotation power is transmitted to the sun gear of the planetary gear mechanism 84, 84 to drive the rear wheel in the reverse direction.

As mentioned above, the single rear axle shaft 81
Power transmitted to the left and right rear wheels 4, 4 via the left and right reverse clutches 82, 82 and forward clutches 83, 83, and planetary gear mechanisms 84, 84. Since it is configured as described above, when traveling straight ahead, it is possible to accurately proceed straight ahead, and when turning, it is possible to smoothly carry out stepless speed change and turn.

There is also a system in which the HST device is arranged on each of the left and right rear axle shafts, but there is a problem that an accurate straight line cannot be performed unless the gear shifts of the left and right HST devices are matched. However, in this embodiment, such a problem can be solved. Next, the hydraulic circuit configuration will be described with reference to FIG.

The pressure oil of the hydraulic pump 86 is adjusted to a predetermined pressure by the pressure reducing valve 87, and passes through the switching valve 88 to the left and right reverse clutches 82, 82 (inside) and the forward clutches 83, 8.
It is configured to be sent to the third (outside) cylinder chamber. Also,
The pressure oil of the hydraulic pump 86 is used as a lifting / lowering switching valve 89 for lifting and lowering the mower.
Is sent to the lifting cylinder 90 via the
PTO clutch cylinder 92 via TO switching valve 91
And the remaining pressure oil is sent to the HST device 93 for charging.

[Brief description of drawings]

FIG. 1 is a side view showing a state where a mower is attached to a moving vehicle.

FIG. 2 is a plan view showing a state where the mower is attached to a moving vehicle.

FIG. 3 is a bottom view of the mower.

FIG. 4 is a bottom view of the mower and a partial cutaway side view.

FIG. 5 is a bottom view and a partially cut side view of a conventional mower.

FIG. 6 is a bottom view of the mower and a partial cutaway side view.

FIG. 7 is a plan view of the mower.

FIG. 8 is a plan view and a rear view of a main part.

FIG. 9 is a plan view and a rear view of a main part.

FIG. 10 is a plan view and a rear view of a main part.

FIG. 11 is an overall perspective view.

FIG. 12 is a transmission mechanism diagram.

FIG. 13 is a hydraulic circuit diagram.

[Explanation of symbols]

1 moving vehicle 2 mower 3 lift arms 27 decks 49a Central drive shaft 49b Left drive shaft 49c Right drive shaft 50 rotary cutting blade 51 cutting blade 52 blades 54 Outer wall 55 outlet 62a Left discharge passage 62b Right discharge passage 64 scraping board

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takeshi Kishi             No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture             Technology Department Co., Ltd. F term (reference) 2B083 AA02 BA18 CA09 CA28 DA02                       GA02 HA60

Claims (2)

[Claims] 1. A deck 2 having a cover body on the upper side and the side of a plurality of rotary cutting blades 50, ... Arranged in parallel in the left-right direction.
The grass mower 2 is covered with 7 and is attached to the moving vehicle 1 so that the grass mower 2 can be moved up and down. At the center of the rear side of the deck 27, the grass mowed by the rotary cutting blade 50, ... A discharge port 55 for discharging is provided, and a plate-shaped scraping plate 64 provided so as to face the discharge port 55 can be moved to a position protruding from a position retracted from the discharge port 55. Weed removal device for mowers. 2. The deck 2 which is a cover body on the upper side and the side of a plurality of rotary cutting blades 50, ... Which are arranged in parallel in the left-right direction.
The grass mower 2 is covered with 7 and is attached to the moving vehicle 1 so that the grass mower 2 can be moved up and down. At the center of the rear side of the deck 27, the grass mowed by the rotary cutting blade 50, ... A discharge port 55 for discharging is provided, and left and right discharge passages 6 are provided on the front side of the discharge port 55 in the deck 27 for feeding grass cut by the rotary cutting blades 50, ...
2a, 62b, and the left and right discharge passages 62a, 6
A wide range of plate-shaped scraping plates 64, 64 facing the 2b can be moved to a position projecting from a position retracted with respect to the discharge port 55 so as to be operated. Removal device.