JP3363060B2 - Row mower - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention
Walking type traveling machine with a steering handle extending toward
In front of the drive wheels in the body, grass growing on the running road surface
Along with a road surface mowing device for mowing
Connected to one side of the traveling road surface on one side of the traveling body
Deploying a slope cutting device that cuts grass growing on the slope
And a front wheel is provided in front of the road surface reaper.
Related to a certain row mower. [0002] 2. Description of the Related Art A ridge mower as described above is used for a road surface mower.
The front wheel in front of the machine and the drive vehicle behind the
By deploying the wheels, the load on the road reaper
To be able to run in a stable position on the ground
It has become. By the way, conventionally,
The front wheel changes the ground height of the road mowing device
To adjust the cutting height by the road cutting device
It was configured as an idler wheel that functions as a gauge wheel. [0003] However, for example,
For example, runways such as agricultural roads where
If it is cut off by a waterway,
And lift one of the driving wheels ahead of the other
Drive only one of the wheels, and the other
As you reach the other side of the road,
Ground the other wheel and lift the other wheel
By running on only one of the running wheels,
The mower should be passed over the waterway that separates the running path.
However, in the above prior art, the front wheels are merely idle wheels.
And it is not driven, so only this front wheel
In order to obtain propulsion when driving with
Push the aircraft up (when moving forward) or pull it up
(During reverse), requiring considerable effort
Was required. Moreover, weeds, etc. on the running path
In overgrown conditions or on rough roads
If only the front wheels, which are idle wheels,
Pushing and pulling the aircraft satisfactorily in response to these resistances
Because it is not possible to break the running path
Inconvenience that makes it difficult to cross waterways
Was to occur. [0004] Further, the ridge mower described above is a traveling machine.
The slope mowing device is located on one side of the
Therefore, when driving with only one wheel, the stability is considerable
It is even more difficult to drive with only the front wheels
Inconvenience may occur, and the slash
Of the traveling machine due to the mowing reaction force received by the mowing device
Being shaken by the surface reaper, it will impair straightness.
From the maneuvering operation to run while suppressing it
Requires considerable effort, and the traveling
When it is shaken to the reaper side, the slope reaper
The cutting height with the slope reaper is not uniform
Some inconveniences have arisen. It is an object of the present invention to divide a traveling road such as an agricultural road.
Can easily cross waterways, etc.
Of the traveling machine due to the mowing reaction force received by the mowing device
Swinging to the surface reaper can be easily suppressed,
Mowing that can improve the cutting performance and cutting height accuracy
To provide machines. [0006] Means for Solving the Problems To achieve the above object,
Therefore, in the present invention, in the ridge mower,
Walking type traveling machine with a steering handle extending toward
In front of the drive wheels in the body, grass growing on the running road surface
Along with a road surface mowing device for mowing
Connected to one side of the traveling road surface on one side of the traveling body
Deploying a slope cutting device that cuts grass growing on the slope
AndA rotary blade arranged adjacent to the road surface mowing device
The first reaping section with a second reaping with a rotating blade
Part around the drive shaft center of the rotating blade of the first mowing part.
Swingable back and forth, and the first around the drive shaft center.
Switching of the holding posture of the second reaping unit with respect to the reaping unit
Connected as possible to cut the slope reaping device
The width can be changed,Drive ahead of the road mowing device
The front wheels are deployed and the steering angle of the front wheels is
Adjustment is fixed by the steering lever located near the steering handle.
It was configured to be able to set. According to the present invention,Rotary breaker of first mowing part
Swinging the second mowing part back and forth around the drive shaft
Switching the holding posture of the second reaping unit with respect to one reaping unit
With, the cutting width of the slope cutting device can be changed.
Become like Moreover,For example, run a mower on a farm road
When crossing irrigation canals, etc.
Then lift one of the wheels and run on the other wheel only.
Even if the vehicle is driven by the driving force of the other wheel.
To get enough propulsion to move the body.
You. In other words, if the front wheels are merely idle wheels, the front wheels
In order to obtain propulsion when driving only with the drive wheels
Push the aircraft while lifting (when moving forward) or pull
It is necessary to perform actions such as stretching (when moving backwards),
It takes a lot of effort, but in the present invention
Means that the front wheels are also driving wheels.
To push or pull the aircraft.
Even if you do not take any action to gain propulsion,
To get enough propulsion to make
This significantly reduces the effort required to run with only the front wheels.
I will be able to. In addition, the ridge mower runs on only one wheel.
The condition of the traveling path when we let it grow is weeds etc.
Each wheel is driven even when
Weeds easily overgrown with ridge mowers because they are running wheels
And can be run against the ups and downs of the road
Swell. [0008] In short,The length of the work surface on which the mowing operation is performed
It is possible to change the cutting width of the slope reaper
I will be able to. or,Even one of the wheels is overgrown
The ridge mower is driven against the weeds and undulations on the road.
To get enough propulsion to make
With only the effort of lifting the wheels of the ridge, mowers can be installed on farm roads, etc.
Can easily cross waterways that divide the road
I will be able to. Moreover, the front wheels are also drive wheels.
Therefore, even if the soil of the work site is soft, sufficient promotion
Power can be obtained, so workability can be improved
become. Further,The steering angle of the front wheels can be adjusted and fixedthing
During the mowing operation, the front wheels are
So that it is oppositeAdjust and fix the steering angle of the front wheels
This allows the slope reaping device to receive
The traveling aircraft moves to the side of the slope mowing device due to the mowing reaction force.
It can be suppressed that the straightness is impaired by being shaken.
Therefore, running during mowing can be stabilized.
And the straightness is impaired.
It can suppress that the cutting height by the picking device becomes uneven.
Become like Also, when not working, the front wheels are oriented forward and backward
likeAdjust and fix the steering angle of the front wheelsBy non
It becomes possible to stabilize traveling during work. One
In other words, while reducing the effort required for steering operation,
Stability can be improved and cutting with a slope cutting device
Height accuracy can be improved. In addition,Adjust and fix the steering angle of the front wheelsSteering
The lever is located near the steering handle,
While in the piloting positionEasily adjust the steering angle of the front wheels
Can be determinedTherefore, run the ridge mowing machine during the mowing work.
While responding to the cutting reaction force received by the slope
AppropriateAdjusting and fixing the front wheel steering angleCan be performed.
In addition, even when the vehicle is not running, the weight of the slope reaper
So that the running body is swung to the slope reaper
If it does, an appropriateFront wheel steering angle
Adjustable fixedCan be performed. That is,The steering angle of the front wheels
Adjust and fixDeploy the steering lever near the steering handle
To improve the operability of the front-wheel steering operation.
As well as during work and when not working
In addition to improving the stability during traveling, the harvesting
It is possible to further improve the cutting height accuracy at the time of work
Swell. Therefore, a waterway that divides a running path such as an agricultural road.
Etc. can be easily crossed, and workability is improved.
And excellent operability of front wheel steering operation.
And is driven by the mowing reaction force received by the slope mower.
Easy and suitable for the aircraft to swing to the slope mower side
Maneuverability, running stability, and cutting height
To provide a furrow mower that can improve accuracy
Reached. [0012] Embodiments of the present invention will be described below with reference to the drawings.
It will be described based on. FIG. 1 shows the overall side view of the ridge mower, and FIG.
Shows the overall plan of the ridge mower.
The mowing machine has a walking type running machine 1, which is mounted on a running road surface.
Road cutting device 2 for cutting grass
Slope cutting to cut grass growing on the slope connected to one side end
It is constituted by the taking device 3 and the like. Traveling aircraft 1
Are the body frame 4 and the body frame 4 which are substantially L-shaped in side view.
Engine 5 mounted on the vehicle, standing behind the body frame 4
Mission case 6 deployed, output shaft 5 of engine 5
Input shaft arranged on the upper side of mission case 6 from a
Belt-type transmission mechanism 7 spanned over 6a, Misshi
Drive wheels 8 arranged at the lower left side of the housing case 6;
And a control hand that extends rearward from the fuselage frame 4
Dollar 9, etc. Road surface mowing equipment
2 is an airframe 4 that is located in front of the drive wheels 8.
Supported by The slope reaping device 3 includes the traveling body 1
On the left end of the road surface reaper 2 so that it is located on the left side
Are linked. A front wheel 10 is provided in front of the road surface reaping device 2.
Is installed, and the load of the road mowing device 2 is stored on the ground.
It can run in a stable position
You. An auxiliary wheel 11 is provided in front of the slope reaper 3.
The load of the slope reaper 3 was also deposited on the ground.
It can be run in a stable position.
The steering handle 9 is located on the rear upper end of the fuselage frame 4
Is connected so as to be able to swing up and down around the
Work the height position of the extension end
Height can be changed according to the height of the rider, improving maneuverability
Can be planned. The steering handle 9 is
With the desired swing posture by tightening the bolt 12
It is configured so that it can be fixed to the body frame 4,
The height adjustment operation of the extension end can be performed easily without using a tool.
It can be obtained. As shown in FIGS.
Is in a horizontal posture from the front of the body frame 4 to the front.
An extended housing 13 and inside the housing 13
Is installed rotatably around the vertical drive shaft center P2
And one rotating blade 14, etc.
You. The housing 13 is fixed to the front of the body frame 4.
13A made of sheet metal and a right wall portion
A rubber plate 13B connected to form a rear wall portion
It is configured. The slope cutting device 3 is a road cutting device.
It is connected to the left end of the installation 2 so as to be able to swing up and down around the longitudinal axis P3.
Housing 15 and the inside of the housing 15
One rotation that is rotatably mounted around the drive shaft center P4
A first cutting unit 3A including a blade 16 and a first cutting unit
It is connected around the drive shaft center P4 of the take-out part 3A to be able to swing back and forth.
Housing 17 and
Equipped to be rotatable around the installed drive shaft cores P5 and P6
Second reaping unit comprising two rotating blades 18 and 19
3B, etc. Of the first reaping unit 3A
The housing 15 is constituted by a top plate 15A made of sheet metal.
Have been. The housing 17 of the second mowing part 3B is made of sheet metal.
The top plate 17A and the second reaping unit 3B are located to the left of the first reaping unit 3A
The left wall and the rear wall are formed when placed on the side
By the rubber plate 17B connected to the top plate 17A
It is configured. That is, the sloping reaper 3 is used for the road surface.
The left and right ends of the reaper 2 can swing up and down around the longitudinal axis P3.
This vertical swing operation allows
To the work surface where the slope cutting device 3 performs the cutting operation.
It can be changed to a posture along. Also for slope
The reaper 3 includes a first reaping unit 3A and a second reaping unit 3B.
Is configured to be able to swing back and forth around the drive shaft center P4.
The swinging operation of the second reaping unit 3B is performed by
The work in which the cutting device is used to cut the cutting width.
The length can be changed according to the length of the surface. The second reaping unit 3B has a range of swinging back and forth.
Is slightly backward from the position immediately to the left of the first reaping unit 3A.
Left side position that is eccentrically oscillated around the axis P4 (see FIGS.
3 and FIG. 6), a position substantially immediately after the first reaping unit 3A.
Oscillatingly displaced around the drive shaft center P4 slightly to the left side
Set in the range over the rear position (see FIGS. 4 and 7)
At the same time, the rotating blades 18 and 19 are
In the left and right direction of the aircraft,
Settings so that they are aligned in the longitudinal direction of the aircraft
Have been. That is, the second reaping unit 3B is replaced with the first reaping unit 3A.
By positioning it to the left of
While the cutting width of the picking device 3 can be maximized,
Move the second reaping unit 3B to a position rearward with respect to the first reaping unit 3A.
The cutting width of the slope cutting device 3
It is possible to be. Also, the second reaping unit
By setting the front and rear swing range of 3B as described above,
In any swing posture, the
The front edge of the jing 17 is located rearward toward the extension end side.
Because of the inclined shape, the second reaping unit 3 is used during the reaping operation.
From the grass resistance that the front edge of the housing 17 of B receives,
Pull or lift the slope reaper 3 toward the fuselage
A component force can be generated, and the second reaping unit 3
B rearward due to grass resistance against the housing 17
As the pressing force can be reduced, it can be
, The maneuverability can be improved. As shown in FIGS.
Rotating blades 14 and the rotating blades of the slope reaper 3
Does 16, 18, and 19 are mutually adjacent
Part of the picking area (rotation locus) will overlap
As well as close contact with each other
Each is set to rotate at a rotation phase that can be avoided.
You. In addition, the cutting width of the slope cutting device 3 is changed as described above.
When performing the rotation, the second mowing part 3B is rotated by the rotating blade of the first mowing part 3A.
Whether to swing back and forth around the drive shaft center P4 of the blade 16
Regardless of the cutting width change of the slope reaper 3,
Keep the distance between the rolling blades 14, 16, 18, and 19 constant
I can do it. In other words, when harvesting
Is the road surface regardless of the cutting width change of the slope reaper 3
Between the reaper 2 and the slope reaper 3, the slope reaper
Between the first reaping unit 3A and the second reaping unit 3B in the device 3,
And between the rotating blades 18 and 19 of the second mowing part 3B.
Uncut leaves occur, and each rotating blade 14, 1
Adjacent ones of 6, 18, and 19 come into contact with each other,
Is configured to avoid inconveniences such as
I have. As shown in FIGS.
And the first reaping unit 3A of the slope reaping device 3 are equipped respectively.
Drive shafts 14a, 16a of the rotating blades 14, 16
Are linked by the first transmission mechanism 20. No.
One transmission mechanism 20 is provided on the drive shaft 14a of the road surface reaper 2.
Bevel gear type first gear transmission unit 2 communicably connected
0A, operatively connected to the drive shaft 16a of the first reaping unit 3A
Bevel gear type second gear transmission section 20B, telescopic
Transmission unit 20C and their respective gear transmissions
Parts 20A and 20B are communicatively connected to the shaft transmission part 20C.
Flexible joint 20D
Reaping device for road surface around the longitudinal axis P3
Up and down swing of the slope cutting device 3 with respect to the
Swelling. Slope cutting in the first transmission mechanism 20
At the end on the device 3 side, the second cutting portion 3 of the slope cutting device 3 is provided.
B, the drive shaft 18 of each rotating blade 18, 19
The second transmission mechanism 21 that interlocks and connects the a and 19a is transmitted.
It is connected as possible. The second transmission mechanism 21 is a first transmission
The second gear transmission portion 20B of the mechanism 20 is operatively connected to the second gear transmission portion 20B.
Bevel gear type first gear transmission section 21A, first reaping section 3
A is transmitted to the drive shaft 18a of the rotary blade 18 on the side adjacent to A.
Bevel gear type second gear transmission 21 movably connected
B, rotating blade 19 on the side separated from first reaping unit 3A
Bevel gear type that is communicatively connected to the drive shaft 19a
Third gear transmission 21C and their respective gear transmissions 21
A, 21B, and 21C, the shaft transmission part which connects so that transmission is possible.
D, the drive shaft center P4 circumference with the second reaping part 3B
It is configured to be able to swing back and forth in one piece.
The first gear transmission 20A of the first transmission mechanism 20 has an input shaft 2
0a, the input shaft 20a and the engine 5
Belt tension type reaping cutter over the output shaft 5a of the
A switch 22 is provided. That is, the reaping device 2 for a road surface is
The engine transmitted through the first transmission mechanism 20 and the first transmission mechanism 20
The rotating blade 14 is driven by the power from the
It has become so. The sloping reaper 3 has a front-rear shaft.
Posture change by vertical swing around core P3, and drive shaft core
Changes in cutting width due to back and forth swinging of the second cutting unit 3B around P4
Regardless, the reaping clutch 22, the first transmission mechanism 2
0 and the engine transmitted through the second transmission mechanism 21.
Power from each of the rotating blades 16, 1
8, 19 are driven. As shown in FIGS.
The slope reaper 3 is located on the right side of the steering handle 9.
The first handlebar 9A is erected to be able to swing back and forth.
The first gear transmission portion of the first transmission mechanism 20 is attached to the operation lever 23
20A, the operation arm 24 supported to be swingable from side to side,
Release release from one operation lever 23 to operation arm 24
From the ear 25 and the operation arm 24, the c
Second gear of first transmission mechanism 20 fixed to housing 15
Linkage via an operating rod 26 extending over the transmission 20B, etc.
Have been. The first operation lever 23 is provided on the right handlebar.
9A is engaged with a guide plate 27 attached to the
It can be held in the operating position. That is, first
The rear of the operation lever 23 against the own weight of the slope reaper 3
By the swinging operation to the side, the slope reaper 3 is
It can be swung up and down around P3.
By swinging the operation lever 23 forward,
The reaper 3 is lowered and oscillated about its longitudinal axis P3 by its own weight.
It can be made to be. Also, the first operation lever
23 is engaged with the guide plate 27 in the desired operation position.
By moving the slope reaper 3 around the longitudinal axis P3
It can be held in a desired posture. The road
From the housing 13 of the surface mowing device 2 to the operation arm 24
Through the first operation lever 23, the slope cutting device 3 is
Assist gas to reduce operating force when ascending and swinging
A cylinder 28 is installed.
By the action of the first operating lever 23
The swinging operation of the device 3 can be performed with a light operation.
You. As shown in FIGS. 1 to 5 and FIG.
The second reaping unit 3B of the reaper 3 drives the first reaping unit 3A.
The second swinging back and forth integrally with the second reaping portion 3B around the shaft center P4.
The transmission mechanism 21 is connected to the left hand of the steering handle 9.
Second operating lever erected on the left and right levers 9B to be able to swing back and forth.
-29 via a push-pull wire 30
You. In other words, the back and forth swing operation of the second operation lever 29 causes
To move the second reaping unit 3B around the drive shaft center P4 of the first reaping unit 3A.
Can be swung back and forth, so that the reaper
The cutting width of the setting 3 can be changed. Second operation
The lever 29 is provided with the second gear transmission 2 of the first transmission mechanism 20.
Second transmission to fan-shaped engaged plate 31 fixed to OB
Engagement swingably supported by the shaft transmission 21D of the mechanism 21
The operation rod 33 for releasing the engagement of the arm 32 is fitted inside.
You. The operating rod 33 and the engagement arm 32 are connected to the lower end of the operating rod 33.
And pivoted forward and backward with the second operation lever 29.
A crank arm 34 movably supported and a crank arm
Release wire 35 extending from the arm 34 to the engagement arm 32
Are linked by The operating lever 33 is a second operating lever.
-29 to the crank arm 34
From the upper part of the second operation lever 29 by the tension spring 36
It is urged to protrude. The engagement arm 32 is a vine.
Energized to be engaged with the engaged plate 31 by the winding spring 37
Have been. That is, the tension spring 36 and the helical spring
Pushing the operating rod 33 against the
To release the engagement of the engagement arm 32 with the engaged plate 31
In this state, the second operation
The back and forth swinging operation of the second reaping unit 3B by the bar 29 can be performed.
It has become. Also, release the pushing operation of the operating rod 33.
By removing, the urging of the helical spring 37
The joint arm 32 can be engaged with the engaged plate 31,
Accordingly, the desired state of the second reaping unit 3B around the drive shaft center P4 is obtained.
It can be held in force. As shown in FIG. 1 and FIG.
H is the left handlebar 9 of the steering handle 9.
A cutting clutch lever equipped with a vertical swing operation on B
38 and a release wire 39.
Grip of the handle bar 9B on the side and the reaping clutch lever 38
The cutting clutch lever 38 swings upward
Therefore, it is configured as a deadman system that can be switched to the transmission state.
Have been. As shown in FIGS. 2-4, 6 and 7,
At the rear end of the first reaping unit 3A in the surface reaping device 3,
Backward flight of the cut grass etc. cut at the cutting section 3A
A rear wall 40 for preventing scattering is provided. Rear wall 40
Supports the rubber plate 40A forming the rear wall and the rubber plate 40A.
And a support member 40B
Swing back and forth around the vertical axis P7 set on the extension of the core P3.
It can move freely and swing up and down around the longitudinal axis P3.
From the first reaping unit 3A of the slope reaping device 3
Supported by the bracket 3a extending toward
And the second reaping unit 3B is linked via a link 41.
You. That is, the rear wall body 40 has the second position around the drive shaft center P4.
Around the vertical axis P7 in conjunction with the forward and backward swinging operation of the reaper 3B.
Swings back and forth and cuts for slope around P3
Up around the coaxial core P3 in conjunction with the vertical swing operation of the take-up device 3.
Is configured to swing downward, whereby the second
The cutting unit 3B swings back and forth around the drive shaft center P4 of the first cutting unit 3A.
The cutting width of the slope cutting device 3 to be moved, and the longitudinal axis
Despite the change in the posture of the slope reaper 3 around P3
To prevent scattering of cut grass etc. from the first cutting unit 3A to the rear.
Can be stopped and deployed at the rear end of the first reaper 3A
Despite this, the second reaping unit 3B is replaced by the first reaping unit 3A.
Slope reaper 3 that swings back and forth around the drive shaft center P4
It is prevented that it becomes an obstacle when changing the cutting width. As shown in FIGS. 3 to 5, the second reaping unit 3B is
Method of swinging back and forth around the drive shaft center P4 of the first mowing part 3A
When the cutting width of the surface cutting device 3 is changed,
The housing 15 of the first reaping unit 3A and the housing 15 of the second reaping unit 3B.
A gap may be formed when the housing 17 is separated from the housing 17.
Therefore, the cover 42 for filling the gap is
First cutting unit 3A in housing 17 of double cutting unit 3B
It extends from the end on the side toward the first reaping unit 3A.
That is, the first in the housing 17 of the second reaping unit 3B
By providing the cover 42 at the end of the reaping section 3A,
Change the cutting width of the slope cutting device 3 during cutting work
Between the housings 15 and 17 of the slope reaper 3
The cut grass can be prevented from scattering from the formed gap.
It has become. In addition, the housing 1 of the first reaping unit 3A
In the upper surface portion on the second reaping portion 3B side in FIG.
Prevents the cover 42 from rising from the upper surface of the portion 3A.
A holding plate 43 is provided, and the holding plate 43
Therefore, cutting is performed between the upper surface of the first cutting unit 3A and the cover 42.
The grass can be prevented from flying. As shown in FIG. 7 and FIG.
The device 3 positions the free end of the second reaping unit 3B at the rearmost position.
In the minimum cutting width state, the free end of the second cutting unit 3B is driven by a drive wheel.
8 is located near the rear end.
Thus, with the support shaft 8a of the drive wheel 8 as a fulcrum,
Can be made to rise greatly. One
For example, the free end of the second reaping unit 3B is located at the rearmost position.
During running with the left and right width of the aircraft minimized.
If it becomes necessary to get over the second reaping unit 3B
The free end is located behind and larger than the rear end of the drive wheel 8.
In this case, the axle 8a of the driving wheel 8 is supported.
Point, and the front side of the aircraft
When the free end of the take part 3B comes into contact with the road surface,
The part side cannot be lifted greatly,
Inconveniences that make it difficult to
However, in the above configuration, the second reaping unit 3B
Is set so that the free end is located near the rear end of the drive wheel 8.
Therefore, as shown in FIG.
Make the front part of the fuselage levitate large with 8a as a fulcrum
So that it can easily get over the step
I am able to do it. As shown in FIG. 6 and FIG.
The rotating blade 14 rotates counterclockwise in plan view.
It is configured. The slope cutting device 3 includes a second cutting unit 3.
The rotating blade 18 on the side of the first mowing part 3A in FIG.
The other rotating blades 16 and 19 are viewed in a plan view in a counterclockwise direction.
It is configured to rotate clockwise. With this configuration
And the rotating blade 14 of the road surface cutting device 2 and the slope cutting device.
With the rotating blade 16 of the first cutting unit 3A in the device 3
The action of each of the rotating blades 14 and 16 is applied to the cut grass.
Can guide between the rotating blades 14 and 16
And between the rotating blades 14 and 16
Can be smoothly discharged toward the
With the rotating blades 18 and 19 of the second cutting unit 3B
The cut grass is used for the action of each rotating blade 18, 19.
Therefore, it can be guided between the rotating blades 18 and 19.
And between the rotating blades 18 and 19
So that it can be discharged smoothly toward Toes
The rotating blade 14 of the road surface reaping device 2
Rotation that occurs when the
The grass that has been cut off by the road 14 is
It accumulates between the housing 13 and the rotating blade 14 and cuts
Inconveniences such as hindrance to running and running, or for slopes
Rotational deviation on the free end side of the second reaping unit 3B of the reaper 3
When the mode 19 is configured to rotate counterclockwise in plan view,
The resulting cut grass that has been cut by its rotating blades 19
Is the housing 17 of the second cutting part 3B and the rotating blade 1
It is said that it will accumulate between 9 and hinder cutting and running.
In addition, each rotating blade 14, 16, 1
This occurs when 8, 19 are configured to rotate in the same direction.
With their rotating blades 14, 16, 18, 19
The cut grass is collected without being discharged between them.
Inconvenient, such as hindering harvesting and running
In terms of mowing performance and running performance that can avoid throat
And excellent. As shown in FIG. 2, FIG. 6 and FIG.
The wheel 8 is located at the lower part of the transmission case 6 which is the support shaft 8a.
Attached to the drive shaft 8a extending from the
And a pair of rubber tires 8A.
The movement from the engine 5 transmitted through the option case 6
It is driven by force. FIG. 15 and FIG.
As shown in FIG. 16, on the upper side of the transmission case 6,
A traveling speed reducer operatively connected to the input shaft 6a.
Structure A is deployed. Engine 5
Transmission unit Aa that can switch between these powers to high and low and decelerate
And a clutch that interrupts transmission from the engine 5 to the drive wheels 8.
And a notch Ab. Specifically, the reduction mechanism
A is a first high-speed externally rotatably fitted to the input shaft 6a.
Gear 44 meshes with first low-speed gear 45 and first high-speed gear 44
The second high-speed gear 46 and the first low-speed gear 45
Second low speed gear 47, second high speed gear 46 and second low speed gear 47
Provided below the input shaft 6a so as to be rotatable integrally
Transmission shaft 48, the first shaft integrally formed with the transmission shaft 48
The input shaft 6a is rotated relative to the input shaft 6a while meshing with the coupling gear 48a.
The second relay gear 49, which is externally fitted, is relatively rotated with respect to the input shaft 6a.
Rollable and slidable outer fitting and sliding operation
Meshed pawl 4 integrally formed with second relay gear 49
Shift gear 5 having meshing claw 50a meshable with gear 9a
0 and the transmission shaft 48 while meshing with the shift gear 50.
By the final gear 51, etc., which is fitted externally so as to be relatively rotatable
The first high-speed gear 44 and the
One low gear 45, second high gear 46, and second low gear
The transmission unit Aa is constituted by 47. Also in the second
The clutch portion Ab is formed by the coupling gear 49 and the shift gear 50.
It is configured. The output gear is connected to the final gear 51 of the speed reduction mechanism A.
A proket 52 is mounted to be rotatable integrally,
A drive shaft for driving the drive wheels 8 from the output sprocket 52
Input sprocket 53 integrally rotatably mounted on 8a
The chain 54 is wound over the entirety. That is,
From the above configuration, the drive wheels 8 are driven by the power from the engine 5.
Is transmitted intermittently and can be switched between high and low.
It is supposed to be. As shown in FIG. 1, FIG. 2 and FIG.
The switching operation of the section Aa is performed at the upper left of the transmission case 6.
Right and left sides of the shift lever 55 extending rearward from the side
Slidably moves to the input shaft 6a by swinging
By sliding the fitted shift shaft 56 with the key 56a,
Key 56a to first high-speed gear 44 or first low-speed gear 45
It can be done by selectively engaging
You. Also, as shown in FIG. 1 and FIG.
Is operated by the shift gear 50 and the shift fork 5
7 in a linked state via the release wire 58.
The handlebar 9A on the right side of the vertical handle 9 swings up and down.
Operate the traveling clutch lever 59 to the right
Of the shift fork 57
Against the bias of a spring (not shown) that operates
Switch to the transmission state by swinging upward
The deadman method is adopted. As shown in FIGS. 1-4, 15 and 16,
The front wheel 10 is a speed reduction mechanism in the transmission case 6.
A and a drive shaft 8a for driving the drive wheels 8
The power take-off shaft 6b, the power take-off shaft 6b and the road surface mowing device
2 to the relay transmission shaft mechanism 60 supported by the housing 13
First chain type transmission mechanism 61 and relay transmission shaft mechanism 6
Second chain type transmission from 0 to support shaft 10a of front wheel 10
It is connected so as to be able to transmit through a mechanism 62. Power take
The output shaft 6b has an output shaft attached to the transmission shaft 48 of the speed reduction mechanism A.
The input sprocket mounted on the drive shaft 8a from the force sprocket 52
Chain 54 wrapped around proket 53
And the sprocket meshing in the winding path
6c are integrally rotatably connected. That is, front wheel 1
0 is the belt type transmission mechanism 7, the transmission case 6, the first
Chain type transmission mechanism 61, relay transmission shaft mechanism 60, and
Engine transmitted via two-chain type transmission mechanism 62
5 to be driven. From the above configuration, for example, a ridge mower can be mounted on an agricultural road.
For crossing irrigation canals, etc. that divide the running path
In this case, lift one of the front and rear wheels 8 or 10
Even if it is made to run only on the other wheel 10 or 8,
The aircraft is driven by the driving force of the other wheel 10 or 8,
To get enough propulsion to do so. One
In other words, when the front wheels 10 are merely idle wheels, the front wheels 1
In order to obtain the propulsion force when driving only with 0
Push the fuselage while lifting the wheel 8 (when moving forward) or
Needs to be pulled (when moving backwards).
Requires much labor, but the above configuration
Since the front wheel 10 is also a driving wheel, the front wheel 10
Push or pull the aircraft even when traveling only
Without taking action to get the propulsion
To get enough propulsion to drive the aircraft.
It is possible to run only with the front wheels 10
Can be considerably reduced. Ridge
Travel when the mower is run on only one wheel 8 or 10
The road condition is overgrown with weeds or undulating
Even if it is a new state, each wheel 8, 10 is a driving wheel
Because there are weeds that are easily overgrown with ridge mowers,
It is now possible to run against the ups and downs of the track.
ing. In short, one of the wheels 8 or 10
However, weeds and ridges against the ups and downs of running roads
And get enough propulsion to run the mower.
So effort to lift one wheel 8 or 10
The ridge mower can be used to cut off waterways that divide running roads such as farm roads.
They can be easily crossed. Only
And the front wheels 10 are also driving wheels, so that
Even if the quality is weak, you can get enough propulsion
Therefore, workability can be improved.
Also, the power take-out shaft 6b for driving the front wheels 10 is driven by the driving wheels 8
Is arranged higher than the drive shaft 8a for
The transmission system for driving the front wheels 10 is inclined to the body and uneven on the ground.
It can be prevented from being damaged by contacting the ground etc.
I am able to do it. As shown in FIGS. 1-4 and FIGS. 12-14,
The second chain type transmission mechanism 62 is provided with the c
It is mounted on the housing 13 so that it can swing left and right around the vertical axis P8.
Support having a pair of left and right support walls 63a, 63b attached
The bracket 63 is supported to be able to swing up and down around the horizontal axis P9.
It is extended toward the front while being held, and its extension
The front wheel 10 is attached to the end. That is,
Left and right swaying around the longitudinal axis P8 of the second chain type transmission mechanism 62
The steering angle of the front wheel 10 can be adjusted by dynamic operation
The upper part around the horizontal axis P9 of the second chain type transmission mechanism 62
The front wheel 10 with respect to the road surface reaper 2 is moved by the lower swing operation.
Height can be changed, and the cutting height by the road cutting device 2
Can be changed. And the second chain
Transmission mechanism 62 includes a knob-equipped bob having an enlarged diameter portion 64a.
The support bracket 63 by tightening the bolt 64
On the left support wall 63a (in this embodiment,
14 as shown in FIG. 14).
Engage with one of the enlarged diameter portions 65a of the formed long hole 65.
Use the tool in the desired swing position
It can be fixed without any
To change the cutting height of the reaper 2
Has become. The relay transmission shaft mechanism 60 includes a first chain type transmission.
An input shaft 60a that is communicatively connected to the driving mechanism 61,
Output shaft that is communicatively connected to the chain type transmission mechanism 62
60b and transmission between input shaft 60a and output shaft 60b
Around the longitudinal axis P8 by a universal joint 60c, etc.
Second chain type transmission
So as to allow left and right swing around the longitudinal axis P8 of the structure 62.
Has become. The second chain type transmission mechanism 62 includes a steering
From the right handlebar 9A so that it is located near the dollar 9
Steering lever extended to be able to swing leftward and rightward
71, a support bracket for supporting the relay transmission shaft mechanism 60
72, a crank arm 73 supported to be swingable left and right.
First operation from steering lever 71 to crank arm 73
The second chain from the rod 74 and the crank arm 73
Via a second operating rod 75, etc. over the transmission mechanism 62
Are linked. The steering lever 71 is connected to the steering handle 9.
Desired operation by engaging with the guide plate 76 mounted on the
It can be held in position. With the above configuration, the left and right swing of the steering lever 71 is determined.
The steering angle of the front wheel 10 configured as a drive wheel by the dynamic operation
Can be adjusted, and the steering lever 71 can be moved to a desired operating position.
By engaging the guide plate 76 in the
The wheel 10 can be fixedly held at a desired steering angle.
During the cutting operation, the front wheel 10 is mounted on the slope cutting device 3.
The steering angle of the front wheel 10 is adjusted so as to face the opposite side of
(See FIGS. 2, 3 and 6)
The cutting reaction force received by the sloping reaper 3 during operation
The traveling body 1 is swung to the side of the slope reaper 3 and the straightness is lost.
Can be suppressed, and this
In addition to being able to stabilize running during stripping work
In addition, since the straightness is impaired, the slope reaper 3
To reduce uneven cutting height
Has become. Also, when not working, the front wheel 10
By adjusting the steering angle of the front wheel 10 so that
(Refer to FIGS. 4 and 7).
And can be. In other words,
To improve driving stability while reducing labor
And height improvement of the cutting height by the slope cutting device 3
Can be planned. In addition, steering for adjusting the steering angle of the front wheel 10
The lever 71 is disposed near the steering handle 9.
When mowing, the front wheels remain in the steering position.
The cutting reaction force received by the slope cutting device 3 at a steering angle of 10
Can be easily adjusted to the appropriate steering angle according to
I have. In addition, even when traveling during non-working time, the slope cutting device
3 causes the traveling body 1 to swing toward the side slope reaper 3.
If you are able to control the front wheel
Adjust the steering angle of 10 to an appropriate steering angle according to the amount of shake.
It has become a clause. That is, the steering angle of the front wheel 10
The steering lever 71 for adjusting the position is arranged near the steering handle 9.
Operability for front wheel steering
While working and not working,
In addition to improving the stability during traveling,
The cutting height accuracy during cutting work
It has become so. As shown in FIGS. 2 to 4, 10 and 11,
The auxiliary wheel 11 is a second gear transmission of the first transmission mechanism 20.
A support arm 66 extending forward from 20B;
And swingable up and down around the horizontal axis P10 from the support arm 66
Through the support rod 67 extended to the slope
In front of the first reaping unit 3A in the slope reaping device 3
It is arranged so that the height position can be changed.
That is, the auxiliary wheel 11 is disposed in front of the first reaping unit 3A.
Setting the slope cutting device 3 to the minimum cutting width
The cutting width of the auxiliary wheel 11 is not
Because it can be located in the
Narrow that needs to be run with the minimum cutting width set
Even if you are in a work place, you can enter that work place
In addition, even at the work site,
It is possible to run in a stable posture deposited on the ground,
This improves stability and workability during driving.
It can be planned. Also, for the sloping reaper 3
By changing the height position of the auxiliary wheel 11
Can change the cutting height by the reaper 3
I have. At the rear end of the support rod 67, a plurality (in this embodiment,
(Five as shown in FIG. 10).
Connecting plate 68 is attached, and the support rod 67 is
Mounted on the support arm 66 in one of the connection holes 68a
By inserting the connecting pin 66a, the desired swing
It can be fixed without using tools for the force
You. With this configuration, the cutting of the slope cutting device 3 is performed.
The height change operation can be easily performed. As shown in FIGS. 3, 4 and 8 to 11,
The supporting rod 67 is rotatably connected to a connecting plate around its axis P11.
Operation supported by 68 and fixed to the rear
The arm 67a is attached to the housing 13 of the road surface mowing device 2.
Swing up and down around the vertical axis P12 on the fixed plate 69 that is erected.
The swing arm 70 is pivotally connected to the free end of the swing arm 70 which is freely connected.
ing. With this configuration, the auxiliary wheel mounted on the support rod 67
Reference numeral 11 denotes a vertical sway around the longitudinal axis P3 of the sloping reaper 3.
Rotates around the axis P11 of the support rod 67 in conjunction with the movement operation
By this rotation, the slope cutting
The attitude with respect to the device 3 is changed and is maintained in a substantially vertical attitude.
It has become. In other words, the auxiliary wheels 11
Maintain a substantially vertical attitude regardless of the tilt angle of the device 3.
This makes it easier to receive the load of the slope reaper 3,
Thereby, it is obtained by the load applied to the auxiliary wheel 11.
Because the biting force on the inclined surface increases,
This makes it difficult for sideslip to occur on the surface. FIG. 8 and FIG.
As shown in FIG. 9, the stationary plate 69 of the
To change the connection position of the swing arm 70
The change of the connection position causes the auxiliary wheel 11
The reference posture can be changed. As shown in FIG. 8 and FIG.
Of the rotating blade 19 located at the leftmost lateral outer end of the device 3
A grounding body having a convex grounding grounding surface 77a on the shaft 19a
77 is installed.
When the body 77 is in contact with the slope,
Rotation blades 16, 1
The fact that there is a risk of damaging 8, 19
It can be avoided regardless of such things. [Another Embodiment] Hereinafter, another embodiment of the present invention will be described.
Are listed.   The road mowing device 2 includes a plurality of rotating blades 1.
4 may be configured, and
Mowing by reciprocating lateral sliding of a pair of blades
And so on.   Deploy the slope reaper 3 on the right side of the traveling body 1
You may make it.   A plurality of rotating brushes are attached to the first cutting portion 3A of the slope cutting device 3.
The blades 16 may be provided in parallel.   One rotating brush is attached to the second cutting portion 3B of the slope cutting device 3.
You may be equipped with a raid 18 or three or more
May be equipped with rotating blades 18 and 19 of
No.   As the slope cutting device 3, a pair of upper and lower blades
It is configured to cut by relative lateral reciprocating sliding.
May be used.   The support shaft of the auxiliary wheel 11 can be transmitted to the support shaft 10a of the front wheel 10.
The auxiliary wheels 11 are also connected to the drive wheels.
May be performed. According to this configuration, the rear wheel 8,
Whether each of the front wheel 10 and the auxiliary wheel 11 becomes a driving wheel
More thrust will be obtained.
The workability of the layer can be improved. Also, the auxiliary wheels 11
Is also configured as a drive wheel, so that the slope reaper 3
To gain more thrust against the cutting reaction
To improve the straightness even further.
become.   The steering angle of the front wheel 10 is adjusted by the steering lever 71
The steering angle of the auxiliary wheel 11 can be adjusted in conjunction with
You may comprise. According to this configuration, during the mowing operation
Means that the front wheel 10 and the auxiliary wheel 11 are opposite to the slope reaper 3
By adjusting each steering angle to be sideways,
Straightness due to the cutting reaction force received by the slope cutting device 3
The inconvenience of spoiling can be more appropriately resolved and the harvesting
It is possible to further stabilize driving during business
You.   A lock for holding the mowing clutch lever 38 in the transmission state.
Lock mechanism or the traveling clutch lever 59 in the transmission state.
A lock mechanism or the like is provided to hold the slope
Before depending on the amount and the mowing reaction force received by the slope mowing device 3
The steering angle of the wheel 10 is adjusted while the ridge mower is running.
You may be able to obtain.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall side view of a row mowing machine. FIG. 2 is an overall plan view of a row mowing machine. FIG. 3 is a slope cutting device showing a front wheel support structure and a configuration of each cutting device. FIG. 4 is a plan view of a reaping unit in a state where a cutting surface is set to a maximum cutting width. FIG. 4 is a plan view of a cutting unit in a state where a sloping reaping device showing a front wheel supporting structure and a configuration of each cutting device is set to a minimum cutting width. FIG. 5 is a longitudinal sectional front view of a cutting section showing a configuration of each cutting device. FIG. 6 is a schematic plan view of a levee mower showing an adjustment state of a front wheel steering angle in a state in which a slope cutting device is set to a maximum cutting width. FIG. 7 is a schematic plan view of the ridge grass mower showing the adjustment state of the front wheel steering angle when the slope mower is set to the minimum cutting width. FIG. 8 The slope mower is set to a horizontal posture. FIG. 9 is a front view of the reaper, showing a cut state. FIG. 9 is a front view of the reaper, showing a state in which the slope cutting device is set in an inclined posture. FIG. 10 is a longitudinal sectional side view of a slope cutting device showing a support structure of an auxiliary wheel. FIG. 11 is a cross-sectional plan view of a main part showing a support structure of an auxiliary wheel. FIG. 12 is a steering angle adjustment structure and height of a front wheel. FIG. 13 is a cross-sectional plan view of a main part showing a height adjustment structure of a front wheel. FIG. 14 is a side view of a main part showing a height adjustment structure of a front wheel. FIG. 15 is a transmission case. FIG. 16 is a longitudinal sectional front view showing a transmission structure in a transmission case. FIG. 17 is a side view of a main part showing a configuration of an operation lever part for vertically operating a slope reaper. FIG. 18 is a plan view of a main part showing a configuration of an operation lever portion for vertically swinging the slope cutting device. FIG. 19 is a diagram showing a configuration of an operation lever portion for changing a cutting width of the slope cutting device. Side view of main part [Figure 20] Schematic side view of walking type mower showing state of climbing on step [Reference Numerals] 1 traveling machine body 2 Reaper for road device Reaper for 3 slopes device 3A first reaper 3B second reaper 8 drive wheel 9 steering wheel 10 wheel 16 rotating blades 18 rotating blades 19 rotating blades 71 steering lever P4 drive shaft core

Continued on the front page (72) Inventor Tomohiko Ichikawa 1-40-2 Nisshin-cho, Omiya-shi, Saitama Pref.Organization for Biotechnology-Specific Industrial Research (72) Inventor Koshi Kuromi 64 Ishizukitamachi, Sakai-shi, Osaka Kubota Sakai Works (72) Inventor Shinya Inada 4-5-1-5 Mitsudori, Mihara-cho, Minamikawachi-gun, Osaka Prefecture Kubota Seiki Co., Ltd. (56) References JP-A-5-30838 (JP, A) Akira Mikai 64-22532 (JP, U) JP-A 63-177123 (JP, U) JP-A 6-79218 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01D 34/86 A01D 34/67 A01D 34/68

Claims (1)

(1) Claims: 1. Grass growing on a road surface in front of the drive wheels in a walking type vehicle having drive wheels and a steering handle extending rearward. as well as deploy the cutting for road device reap, the next one side of the vehicle body, and deploy the cutting for slopes reap moldy grasses the inclined surface continuous to one end of the traveling road device, the road surface Equipped with a rotating blade installed adjacent to the mowing device
The second mowing part equipped with a rotating blade on the first mowing part
Around the drive shaft center of the rotary blade of the first mowing part.
The first cutting around the drive shaft center so as to be able to swing back and forth.
The holding posture of the second reaping part with respect to the reaping part can be switched.
And connect the slope reaping device to the cutting width.
The driving front wheel is arranged in front of the road surface reaping device, and the steering angle of the front wheel can be adjusted and fixed by a steering lever arranged near the steering handle. Ridge mower.