JP3512644B2 - Riding rice transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the planting of a riding rice transplanter.
Transmission frame and seedling support frame in plantHi
Switch configuration. [0002] 2. Description of the Related Art The planting part of a conventional riding rice transplanter is
Projecting transmission chain case from the case
And placing a planting claw at the rear of the planting transmission chain case.
And driven by the planting mission case.
Protrude the pipe to the side and place the seedling support frame on the support pipe.
Was standing upright.Conventionally, for traveling vehicles
A hitch is attached to the part where the planting part is connected via the lifting mechanism.
It was provided. [0003] [Problems to be solved by the invention]In the present invention, the gate
The horizontal frame that constitutes the seedling table support frame configured in a shape
In addition, the guide of the planting depth setting lever and the
For installing the guides and attaching each guide
Supporting member is planted on the transmission case or planting transmission frame side
On the seedling support frame.
Can reduce assembly man-hours and contribute to cost reduction.
To offer.Also,On the upper side of the hitch 94, the high
Since high strength is not required, cutout holes 94 are formed in the front wall.
d is installed and the inside of the hitch 94 is checked from the front of the hitch 94
To improve ease of assembly and reduce weight
The configuration is as follows. [0004] Means for Solving the Problems The above problems are solved.
In order to do so, the present invention provides a riding rice transplanter as follows.
Things.The planting section 9 can be moved up and down at the rear of the traveling vehicle 1.
To the planting claw 93 from the input shaft of the planting section 9.
The planting transmission frame 92 to be transmitted is formed in a portal shape in plan view.
At the same time, the planting transmission frame 92 has a rear view portal shape.
The constructed seedling support frame 190 is integrally fixed,
The horizontal frame 19 constituting the seedling support frame 190
0a, the planting depth adjusting lever 79 is tilted forward and downward.
A bar guide 179 is protruded, and a horizontal frame 190a is also provided.
Lever of the seedling collection setting lever 196 inclined forward and downward
A guide 178 is protrudingly provided in front of the planting transmission frame 92.
The hitch 94 connected to the traveling vehicle 1 is
And provided on the hitch 94 by a pivot shaft 176.
A cutout hole 94d is provided in the front wall on the part sideThings. [0005] BRIEF DESCRIPTION OF THE DRAWINGS FIG.
This will be described based on the embodiment shown in FIG. FIG. 1 relates to the present invention.
FIG. 2 is a schematic side view showing the entire riding rice transplanter A, and FIG.
FIG. The riding rice transplanter A includes a traveling vehicle 1 and a traveling vehicle 1
And a planting part 9 connected to the rear part of
As shown, the front and rear portions of the traveling vehicle 1
The wheel 2 and the rear wheel 3 are suspended, and the front part of the body frame 4 moves.
An engine 5 as a power unit is mounted. The engine 5
It is long in the front-rear direction at the approximate right and left center of the rear body frame 4.
The formed mission case 6 is arranged, and
The front wheel 2 is supported at the front of the case 6, and the rear wheel is supported at the rear.
3 are supported. Bonnet 22 covering engine 5
Spare seedling stands 90 are provided on both sides of the
Mission case 6 etc. depending on the body cover 20 to be boarded
Is covered. The driver's seat is located in the upper rear of the body cover 20
7 and a hood 22 at the front of the vehicle body cover 20.
A steering handle 8 is disposed behind the vehicle. [0006] The planting section 9 is provided with a seedling table 91 or a multiple planted four-row planting.
It consists of a number of planting claws 93, etc.
The seedling mounting table 91 is moved to the lower rail 95 and the guide rail 96.
Slidably supports the planting transmission frame 92 through the
As well as crank motion by the crank mechanism
A planting claw 93 is disposed at the rear of the planting transmission frame 92.
ing. Therefore, the front wheels 2 and the rear wheels 3 are driven to travel.
Seedling table 91 that can be moved and slid back and forth left and right
Seedlings are taken out from the plant by the planting nail 93 and continuously
Seeding can be done in [0007] Rollin on the front of the planting transmission frame 92
A hitch 94 is provided via a fulcrum shaft 176,
The notch 94 is pivotally supported on the upper left and right sides of the hitch 94.
The top link 11 and the lower left and right sides of the hitch 94
Elevating link mechanism including lower link 12 supported
The vehicle 10 is connected to a rear portion of the vehicle 1 via a cable 10. Said
A lift arm 13 is provided on the inner surface of the front end of the lower link 12.
The base of the lift arm 13 is fixed.
-Projecting upward in a direction substantially perpendicular to the
Has been established. Elevating to drive the elevating link mechanism 10 up and down
The cylinder 15 is connected to the lower link 12
To the arm 13. Further, the upper end of the lift arm 13 is
A reinforcing link 14 is connected between the rear end of the
So that the rigidity of the lower link 12 is increased.
are doing. The top link 11 and the lower link 12
Is located between the rear connecting frames 43 and 44 described later.
It is pivoted via a horizontal pivot pin,
The connecting frames 43 and 44 support the lifting link mechanism 10.
The planting part 9 can be moved up and down stably and the number of parts
And the structure is simplified. This lift
Parallel link for raising and lowering the planting part 9 by the link mechanism 10
Is formed and raised and lowered according to the unevenness of the field.
Make sure that the planting attitude of the planted seedlings does not change.
ing. A vehicle body cover on which a driver's seat 7 and the like are installed.
20 has a main transmission lever 75, a seedling connection lever 76,
Lower lever 77, main clutch pedal 74, brake pedal
73 etc. are arranged, and the planting part 9 is fixed below the planting part 9
Center float 97 for leveling and size
Do floats 98 and 99 are provided. The center
The float 97 is arranged on the left and right center lines of the traveling vehicle 1,
Side float at the symmetrical position of center float 97
98 and 99 are arranged to balance the right and left of the planting part 9
Keep it in good condition, stabilize the planting posture, and plant it accurately
So that you can get hurt. Next, the configuration of each section will be described in detail. First, reserve
The mounting configuration of the seedling mounting table will be described. Figure 3 shows the spare seedling table
Fig. 4 is an overall plan view of the body when it is installed facing the inside of the body.
Take the spare seedling platform on the right side of the line
FIG. 5 is an overall perspective view of the small riding rice transplanter when attached.
Fig. 6 is a schematic side view of the frame and the transmission case.
Plan view, Fig. 76 can be installed inside the fuselage.
FIG. 4 is a front view of the spare seedling mounting table. The body frame 4 is formed of a pipe body.
6, both sides face rearward as shown in plan view in FIG.
The flon which has been bent and formed to have an expanded substantially U-shape
And the transmission frame 40 and the transmission case 6 are arranged.
From the vicinity of the front end of the transmission case 6
The front end of the transmission case 6, parallel to the transmission case 6
From the vicinity to the front, it is formed so as to expand in a substantially C shape
Left and right side frames 41 and 42
ing. And, into the C-shape of side frames 41 and 42
The expanded front end is on the open rear of the front frame 40
Connected, and further, as shown in FIG.
The rear portions of 41 and 42 are bent upward.
You. The both ends of the front frame 40 and the support
Between the outer sides of the front ends of the id frames 41 and 42 in plan view
An L-shaped bent stay 29 is fixedly provided, and the stay 2 is fixed.
9, a square pipe-shaped holding portion 28 is fixed to
The support 90a of the spare seedling mounting table 90 is fitted into the portion 28 and fixed.
Have been. The spare seedling mounting table 90 is provided in the holding section 2 as described later.
The direction is changed by 180 degrees by removing the support 90a from 8.
Can be obtained. Also, the side frame
Because the front sides of 41 and 42 are expanded in a C shape, a wide
Engine space can be secured, side frame
41 and 42, near the front end of the transmission case 6
Is parallel to its mission case 6, so
Secure installation space for wheel 3, various control levers, etc.
So that these fixing and connecting methods can be simplified.
It has become. Further, as shown in FIG.
From the center of the front frame
A flat support member 50 extends from the engine 5.
Is placed on the support member 50. The support member
The front of the bay is upwards towards the front frame 40
It is formed to bend and also supports this engine
The rear end of the member 50 connects the side frames 41 and 42.
Near the connecting portion.
An opening 50a is drilled beside. An opening 50 formed in the support member 50
a and 50b are designed to reduce the weight of the entire
The heat radiation effect of gin 5 can be promoted
Other than this, the engine drain
Used as a hole or used for maintenance, etc.
can do. The support member 50 has a flat plate shape.
Because it is used as a protective cover under the engine 5
The number of parts
Reduction and weight reduction, as well as reduced assembly man-hours
To reduce costs.
You. And, above all, the mounting height position of the engine 5 is lower.
Position on a traditional frame
Lowering the center of gravity of the entire aircraft
To realize a rice transplanter with an excellent fall angle
It has become. Next, the spare seedling mounting table 90 will be described.
As shown in FIG. 1 to FIG.
At the side end, a support for a spare seedling mounting table 90 is provided via a stay 29.
A holding portion 28 into which the column 90a is fitted is provided.
The lower end of the column 90 a is fitted into the holding portion 28, and
Insert the knob screw 350 from one side, and
The spare seedling mounting table 90 is fixed. The spare seedling mounting table 90 is symmetrical.
Therefore, only one side will be described. On the support 90a
The supporting frame 351 is formed by bending a pipe into a U-shape in plan view.
351 are fixedly provided in two upper and lower stages, and the support frame 351 is provided.
・ Placement plate 3 as a placement part for placing seedling box on 351
52 and 352 are fixed. Also, the mounting plate
The openings 352a and 352a at the rear of 352 and 352 are seedlings.
This is for lifting the box from below. [0017] The mounting plate 352
Is, as shown in FIGS. 1, 2, and 4, a separate mounting portion.
Sliding plates 353 are provided. The sliding
The plate 353 is the same as the grip frame 353a for sliding.
The body is formed and the grip frame for slide 353a is supported.
Slidably supported on frames 351
I have. The rear part of the grip handle frame 353a for slide
352 extends to the rear lower part, and the grip
By holding the rear part of the arm 353a and pushing it forward,
The plate 353 slides forward, and the sliding plate 353
The mounting portion enlarged by the mounting plate 352 has a long length.
Seedling mats and seedling boxes can be placed. Also, the side portions of the support frames 351 and 351
The side frames 354 and 35 for receiving the seedling box
4 is fixedly mounted on the lower side frame 354 at the center thereof.
Has a receiving plate 355 fixed, and upper and lower side frames
Seedling mat with room 354/354 and receiving plate 355
(Empty box) and seedling mat removal after placing the
The delivery plate can be stored. Then, the riding rice transplanter A is stored in a barn or the like.
In this case, it could not be removed conventionally,
In this case, the operator loosens the knob screw 350 to secure the support 90a.
Release the support, lift up the column 90a and pull it out.
And the riding rice transplanter A is stored with the spare seedling mounting table 90 removed.
You can do it. Therefore, the width of the riding rice transplanter A
Can be made smaller and can be stored compactly
You can do it. When storing the rice transplanter A in a barn or the like,
Conventionally, a support 90a is used to store the spare seedling mounting table 90.
Configuration to flip backward or inward by inserting and removing
, But the spare seedling table 90 in FIG.
From the state facing outward, as shown in FIG.
Turn the 90 direction 180 degrees to face the inside of the aircraft
Then, the support 90a is fitted into the holding portion 28, and the holding portion 28
Insert the knob screw 350 from the front of the
If you store the 90 with it attached to the fuselage,
It is possible to fix the seedling mounting table 90. This
Removed the spare seedling mounting table 90 to a place different from the aircraft inside the barn
Attached compactly to the fuselage side without storing it
Can be stored efficiently in a storage place such as a barn.
The burden of separately storing the spare seedling table 90
There is no. At this time, a two-dot chain line in FIGS.
The spare seedling mounting table 90 within the right and left width of the machine
Can be made, so it is compact without taking up width
This makes it possible to achieve a good storage state. So
Then, as before, the spare seedling mounting table is
The structure is simpler and the parts
The number can be reduced and therefore the assembly work
Will be simpler and cheaper to manufacture
It is. As shown in FIG. 3 and FIG.
When the base 90 is installed facing the inside of the fuselage,
Placing the side frame 354 and the seedling mat of the Bibae mounting table 90
The mounting plate 352, which is a part, is
When wrapped, the width of riding rice transplanter A is reduced.
When stored in a barn, etc.
It can be stored in the pact. Also, conventionally
Engine 5 is placed on the frame and the bonnet position is high
Therefore, as a configuration for rotating the spare seedling mounting table 90 inward
So that the spare seedling mounting table 90 does not interfere with the bonnet 22.
Must be placed on the side of the aircraft.
It could not be stored compactly. In this embodiment,
As described above, the engine 5 built in the hood 22
Is arranged so that the lower part of the body projects below the body frame 4.
And the engine 5 is located at a lower position.
When the mounting table 90 is attached to face the inside of the
The net 22 is a side frame 3 below the spare seedling mounting table 90.
54 and below the mounting plate 352 and interfere
No overlap with hood 22 in plan view
The left and right width of the aircraft can be reduced
It can be stored in a compact state and can be stored in a barn, etc.
It can be stored without taking up too much space, and even a factory
More on the carrier of transport vehicles such as trailers when shipping from
Can be loaded. In addition, the button
As the height of the net 22 is reduced, the
The placement section can be placed low, improving operator visibility.
And easy handling of seedling mats and seedling boxes.
ing. Further, as shown in FIG.
90 is operated by the main shifting lever 75, the seedling connecting lever 76, or the like.
It can be stored in front of the tool, so a spare seedling table in plan view
Compared to the configuration in which 90 overlaps with the traveling operation tool
With the spare seedling mount 90 facing the inside of the fuselage.
The aircraft easily in storage areas such as barns and on the road
Can be operated at the same time, and the operability will not be impaired.
There is no. Next, the bonnet 22, sub-step 2
3. The configuration of the main step 32 will be described. Figure 7 shows Bon
FIG. 8 is a perspective view showing a state in which the net is removed, and FIG.
FIG. 9 is a perspective view of a disassembled tank.
FIG. 10 is a plan view of a body cover and a body frame.
11 is a plan view of the rear cover, and FIG. 12 is a plan view of the front cover.
FIG. 13 and FIG. 13 are perspective views of the non-slip member, and FIG.
Fig. 15 is a side view of the engine and engine cover.
FIG. 16, FIG. 16 is a plan view, partly in section, and FIG. 77 is another form.
FIG. 2 is a perspective view of a state where a bonnet and a fuel tank are disassembled.
You. The main step 32 and the front cover 21
The upper surface of the sub-step 23 of FIG.
As shown in FIG.
2 and sub-step 23 are integrally formed with a large number
They are juxtaposed and protruded. Conventionally, the slip
The stopper member is formed on a rubber sheet, and the rubber sheet is
And the number of parts increases.
I was In this embodiment, the main step 32 and the sub
Step 23 forms a non-slip member 35 integrally with itself.
The aim is to reduce the number of parts. Shape of the non-slip member 35
As shown in Figs. 13 and 14, the shape is centered on the roof of the purlin.
Height so that the angle increases as you move outwards.
The body is molded. However, this shape is not limited
Instead, the shape may be a triangular pyramid or a quadrangular pyramid. to this
This prevents mud and water from accumulating on the non-slip member 35.
Flow on the step surface, preventing slippage at all times
The fruit can be maintained. Therefore, as in the conventional case, the step cross
Parts, etc.
Costs and production processes.
You. Also, the anti-slip member 35 is formed in such a shape.
And the anti-slip effect is enhanced,
At the time of transferring seedling mat from spare seedling mounting table 90 to seedling mounting table 91
Safety can be guaranteed. And especially, the non-slip member 35
Are arranged in a grid, the drainage and drainage effect is high,
Mud clogging between the non-slip members 35 can be prevented. As shown in FIGS. 5, 6, and 15,
From the center of the front frame 40,
A plate-like support member 50 is provided, and the engine 5 is
Is mounted on the supporting member 50. The engine 5
The output shaft 52 projects laterally from the
A drive pulley 53 is physically attached. The drive
The driven pulley 5 of the transmission case 6 has a pulley 53.
And a drive pulley 53 for transmitting power to
Power to pump pulley 282 located in front of
The pump belt 281 is hung. And figure
15, as shown in FIG.
281, drive pulley 53, and pump pulley 28
A belt cover 283 that protects the
I have. The belt cover 283 is for protecting a belt and a pulley.
Cover at least the sides, bottom, and front of
And all of its covering surfaces have slits 283
a · 283a... are provided. By adopting such a configuration, the safety
The engine is installed near the engine 5
Despite the fact, a hot air escape route is secured and the belt
Of ambient temperature, heat balun of engine 5
Is improved. The belt cover 283 is
It is made of resin and has a built-in type.
It is possible to wear it and is easy to maintain.
You. An engine cover is provided above the engine 5.
The engine is covered by the hood 22
5 is lower than the body frame 4 as shown in FIG.
The air-cooled engine 5
The cooling air intake 5a near the il starter is
4 from the lower side, and further opposite to the cooling air inlet 5a.
The exhaust port of the muffler 5b, which becomes relatively hot,
Because it is arranged for
In addition to reducing drag loss, lower the temperature of cooling air.
Can be. And whether the engine 5 is exposed
The heat balance of the engine 5
It becomes good and the output does not decrease. Therefore, the heat
A well-balanced rice transplanter can be realized. The fuel tank 136 is fixed to the engine 5.
9 is supported by and attached to the stay 137 shown in FIG.
As shown by the arrow, the tank support portion 137a of the stay 137 is
It protrudes so as to be located above the hood 22 and
The tip of the tank support portion 137a is located on the side of the fuel tank 136.
Fixing means such as bolts on the mounting portion 136a formed in the portion
It is attached and fixed by. With this configuration, the fuel such as the stay
Material can be simplified, reducing the number of parts.
It is. Also, the fuel tank 136 can be easily removed.
Therefore, it is excellent in maintainability. The fuel tank 136 is located above the engine 5.
The fuel tank from the heat radiation of the engine 5
Link 136 needs to be protected. Therefore, the button of the present invention
As shown in FIG. 7 and FIG.
The upper surface of the bonnet 22 where the 136 is located is formed in a concave shape.
The shield recess 22b is used as the shield recess 22b.
Insert between the fuel tank 136 and the bottom of the fuel tank 136
It is also possible to adopt a configuration in which the parts are fitted and mounted. The shielding
By providing the heat-shielding member with the heat-shielding portion 22b having a heat-shielding property,
Conventionally, to protect the fuel tank 136,
The hood 22 eliminates the need for the heat insulation member
Since the heat balance of the fuel tank 136 can be adjusted,
The cost can be reduced by reducing the number of parts.
You. In addition, the assembly process is simplified by reducing the number of parts.
Maintenance is also improved. However, bonnet
Cut out the mounting part of the fuel tank 136 on the upper surface of
Open and attach a shielding member to that part
It is also possible. The shielding recess on the upper surface of the hood 22
22b is shaped according to the shape of the lower part of the fuel tank 136.
Has been established. The lower part of the fuel tank 136 is generally
Convex portion 136 protruding downward in a shape along the outer periphery of the link
b is formed. A projection matching the shape of the projection 136b
A recess 22c on the upper surface of the net 22 is formed. The
Open the back of the concave portion 22c and attach the hood 22 to the vehicle body.
Can be inserted and removed with simple operation
When the hood 22 is attached and detached, the fuel tank 136 is attached.
And can prevent lateral displacement. In addition, the concave
The portion 22c is open at the rear, so that the recess 22
The structure is such that water, mud and other garbage do not collect in c.
You. In FIGS. 8, 9, and 12,
On the upper surface of the net 22, the fuel tank 136 is
In the position where the heat is not dissipated.
Holes 22a are formed at a plurality of locations.
The heat radiating holes 22a, 22a.
136 is a position that does not overlap with the lower engine 5
Above, and in the present embodiment, the bonnet 22
Formed on the front, but may be on the side
No. Thus, the heat radiation holes 22a are opened.
The effect is to keep the heat balance of the engine 5
Heat can be efficiently released, and the fuel tank 136 can be
It can protect from high temperature heat by heat radiation of gin 5.
It is. Next, the bonnet 22 is made detachable.
The form will be described. As shown in FIG.
Protruding part 13 projecting downward at the lower part of the fuel tank 136
6b are formed. And on the hood 22
The surface has a U-shape in plan view according to the shape of the convex portion 136b.
A rib 22d is formed, and a rib is surrounded by the rib 22d.
Between the engine 5 and the fuel tank 136
It is a heat shield. And, the rear of the rib 22d
Open and insert the hood 22 from the front of the vehicle
The bonnet can be removed with simple operation
When the fuel tank 22 is attached and detached, it serves as a guide for the fuel tank 136,
As in the case of forming the concave portion 22c described above, the prevention of the lateral displacement is performed.
The water, mud and other garbage do not collect from the opening of the rear part of the rib 22d.
It has such a configuration. The rear of the fuel tank 136 is
8, as shown in FIG. 10, a U-shaped groove-shaped recess 136 in plan view
c is formed in the recess 136c.
The front part of the shaft 81 can be inserted and fitted.
As shown in FIG.
A locking stopper member 280 is fixed. This
Thus, the recess 136c of the fuel tank 136 is steered.
By fitting the link shaft 81, the upward movement
Is regulated by the stopper member 280. Also,
The structure can be simplified and the weight can be reduced. In addition,
When the fuel tank 136 is attached,
It also plays the role of positioning the tank 136. Next, various operation levers and steering handle
The arrangement and the like will be described. FIG. 17 shows a steering hand of the present invention.
Schematic perspective view showing the positional relationship between the dollar and various operation levers
FIGS. 18 and 18 show various operations viewed from the driver's seat through the steering wheel.
FIG. 19 is a schematic plan view showing working levers and an oil meter.
Various operation levers, etc. viewed from the transfer seat through the steering wheel,
FIG. 20 is a schematic plan view showing an oil meter and an oil meter.
FIG. 21 is a schematic side view of a fuel tank, and FIG.
22 is a schematic side view of the fuel tank, and FIG.
It is a schematic perspective view which shows the steering handle provided. As shown in FIG. 9, FIG. 17, and FIG.
The levers are connected to the steering handle 8 located in the center of the fuselage.
Tearing column 150, ie, steering shaft 8
1 is installed symmetrically on the lower left and right sides of the
Running operation unit described later concentrates on the left side in plan view
The engine operation section, which will be described later, is
Have been. The planting operation section is concentrated on the right side of the driver's seat 7.
Are located. Lever to operate each function in this way
Are centrally located at different points in each operation system.
Makes it easier to understand each operation and improves handling.
It becomes preferable. Also, the one shown in the illustration runs to the left
Operation system, engine operation system is arranged on the right, but left and right reversed
But it doesn't matter. This will be described more specifically. First, the driving operation
Lever guide that is almost horizontal in side view at the part where the part is arranged
Part 150a is formed, and a lever as a traveling operation part is formed.
The main transmission lever 75 and the seedling connection lever 76
Side-by-side operation so that it can be shifted
The main transmission lever 75 is located inside the
The seedling connecting levers 76 are arranged on the outer side of the fuselage, respectively.
ing. As described above, the main transmission lever 75 and the
The lever guide portion 150a for disposing the bar 76 is omitted in side view.
When it is horizontal, the lever guide portion 150a is inclined.
The same position position, for example,
In the case of the main shift lever 75, the lever guide in the neutral position
Lever cross section parallel to the
The position of the lever can be clearly understood. So
And the frequently used main shift lever 75 is close to the driver's seat 7.
The advantage of being able to easily operate the gear shifting
There is a seedling connecting lever 76 on the outside
It is easy to operate when getting off the aircraft and working.
There are advantages. In other words, the brake mechanism and
Can be used to enter and exit the field and load on transport vehicles.
Easy to drop down, and to get off the aircraft and plant
The seedling lever 76 can be operated while looking at the
Planting can be carried out just before
There is no need to do it. On the other hand, in the portion where the engine operation section is provided,
An operation panel 150b toward the driver's seat 7 is formed,
Key switch 151, choke 15 in order from inside the body
2. The grip part 153a of the recoil starter 153 is provided.
And the grip portion of the accelerator lever 78 is disposed above the
Have been. Also, the operation panel where the engine operation unit is located
Since the panel is installed almost vertically, the operator
The distance between the engine and the engine operation unit becomes shorter. Therefore, Lord
It is very easy to perform those operations while sitting in the driver's seat,
The mosquitoes are arranged from the inside of the aircraft in the order of the operation force,
Are arranged in the order of operation from the inside of the aircraft, so each operation
Easy-to-understand arrangement of tools greatly improves operability
And workability becomes very good. Each operating tool is engine
5 is located close to the
The interlocking connection up to the engine 5 can be simplified. At the upper right end of the operation panel 150b
Is a seedling connection alarm buzzer stopping means 2 as shown in FIG.
01 is arranged. In other words, this bud stop alarm
The stopping means 201 is connected to the traveling operation system with the steering handle 8 interposed therebetween.
Because it is located near the side opposite the lever,
Even if the splicing alarm buzzer suddenly sounds, the main shift lever
75, without touching the seedling connecting lever 76, etc.
Press the emergency alarm buzzer stop means 201 and immediately transfer the seedlings
The alarm buzzer can be stopped.
In other words, operability because it is not disturbed by the driving lever
And prevent accidents due to erroneous operations.
You can do it. In addition, stop the buzzer
The means 201 is a key provided on the operation panel 150b.
-Other switches such as switch 151 and choke 152
Can be operated without interference.
It can also be configured. Next, the various operation levers and steering handle
The positional relationship of No. 8 will be described. First, the steering handle 8
Is upward from the center of the fuselage as shown in FIGS.
Three from the upper end of the steering shaft 81 that protrudes
Spoke 200 is extended in the radial direction, and the spoke 2
At the tip of 00, the inside of the ring-shaped grip 210 is fixedly supported.
Thus, the steering handle 8 is formed. In addition,
A steerer located in the middle of the upper and lower parts of the ringing shaft 81
Left side of the aircraft in the traveling direction
, A lever guide section 150 in which a traveling operation system lever is disposed
a is formed, and an engine operation system lever is arranged on the right side.
An operation panel 150b is formed.
A fuel tank 136 is provided. Then, the steering handle 8 moves in the straight traveling direction.
Three spokes 200 arranged in a Y-shape when facing
Are the rear spokes 200a and the left diagonally forward spokes 200
b, arranged so as to be the diagonally forward right spoke 200c
And three space portions 209 between the
a, 209b, and 209c. Like this
With the operator seated,
The key switch 151 and the switch are inserted through the space 209b.
Yoke 152, seedling splicing alarm buzzer stopping means 201 and so on
Can be confirmed on the operation panel 150b of the
c, the main shifting lever 75, the seedling connecting lever 76, and the
The lever guide 150a of the steering handle 8 can be confirmed.
Can be checked while sitting in the driver's seat 7 without being disturbed by
Move the field of view from the front to the side
It is no longer necessary and the planting strip is bent and planted neatly
There is no malfunction such as inability to attach
Prevention and safety can be improved. The fuel tank passes through the space 209a.
The tank 136 can be confirmed.
136 is provided with residual oil amount checking means 202.
20 and 21 as the oil amount checking means 202.
As described above, the transmission oil meter 202a and the float oil meter 202
b and the like. The transmission oil meter 202a
Is provided with a transparent portion 203 in a part of the fuel tank 136,
A scale 204 is engraved on the transparent portion 203 so that the oil surface can be seen from outside.
The amount of oil can be checked visually. Float type oil quantity
The total 202b has a display unit 205 and a surveying unit 206.
Thus, the amount of oil can be confirmed by the display unit 205.
You. That is, the operation is performed through the space 209a.
You can check the amount of residual oil during
You can continue your work without worry.
The number and shape of the spokes 200 are limited.
The gripper 210 of the steering handle 8
It can be supported and fixed, and the operation under the steering handle 8
If you can check the part while sitting in the driver's seat 7
Good. Next, another embodiment of the steering handle 8 will be described.
Will be explained. In FIG. 22, the steering handle 207 is
In the forward state, the rear portion is defined as a left and right straight portion 207b.
The left and right central front portions of the portion 207b are connected to the steering shaft 81.
It is fixed to the upper end of. From both sides of the straight portion 207b
Toward the center of the steering shaft 81 as in the past
An arcuate grip 207a is formed. in this way
By configuring, compared to the conventional circular handle,
Normally, the steering wheel is oriented straight ahead, so
The distance between the part 207b and the driver's seat 7 is increased. That is,
When moving around on the main step 33, such as at the time of seedling or getting on and off
The front of the driver's seat 7 spreads,
Improves safety without erroneous operation or hitting the body
Can be done. Also, the structure of the steering handle 207
Can be simplified, cost can be reduced,
Since there is no handle behind 207b, the lever and
The position of the switch can be easily confirmed. The transmission case 6 is shown in FIG.
So that the rear part is separated from the lower surface of the main step 32
The front and rear of the body frame 4 formed at the front low and rear high
Direction from the lower center to the lower rear of the rear end of the body frame 4.
As shown in Fig. 1,
As described above, they are arranged at the front, the back and the low in the side view. I
Therefore, above the rear part of the transmission case 6,
Lifting shaft for raising and lowering the PTO transmission shaft 158 and the planting section 9
The cylinder 15 and various operating levers can be arranged.
Effective space can be secured and the overall length of the aircraft can be shortened
A simple and efficient layout
Can improve design flexibility
It has become. FIG. 5, FIG. 6, FIG. 23 and FIG.
As described above, the side frames 41 constituting the body frame 4
・ 42 is at the rear side from the substantially central portion 41a / 42a in the front-rear direction.
It is formed to bend upwards.
In the body width direction near the center part 41a / 42a where bending begins
An interframe 46 is provided. The center run
Mounting member 47 provided substantially at the center of the arm 46 in the machine width direction.
The middle part of the transmission case 6 is connected to the transmission case. Ma
The middle part of the mission case 6 is directed rearward.
It is located immediately above the PTO shaft 65 that protrudes.
It is provided integrally with the rear part of the transmission case 6.
Rear axle case 38 via a mounting plate 39
Upper ends of connected rear connection frames 43 and 44
And the rear ends of the side frames 41 and 42 are integrated.
To the side frames 41 and 42 and the rear connecting frame.
Arms 43 and 44 and transmission case 6 are approximately triangular in side view
A frame having a shape is configured. The rear ends of the side frames 41 and 42 and
Part where the upper ends of the rear connection frames 43 and 44 are connected
Minute, that is, the topmost vertex that forms a substantially triangular shape
A rear frame 48 is erected in the width direction of the fuselage.
On the frame 48, the driver seat installation part 31 of the rear cover 30
The rear surface of the lower surface is mounted and fixed, and the rear support member 72 is fixed.
The load of the driver's seat 7 is supported through the. In addition,
Central portions 41a and 42a and rear end portions 41 of the frames 41 and 42.
b, 42b, and is erected in the machine width direction.
On the support member 49 such as a pipe stay
The front side is placed and fixed, and operated via a connecting member.
The front support member 71 of the transfer seat 7 is connected. The frame having a substantially triangular shape as described above
So that the rear of driver's seat 7 is located just above the top of
It is arranged, and the central portions 41a and 42a of the body frame 4 and the vehicle
Rear connection frame 43 supporting the rear end of body frame 4
・ Support the lower rear part of 44 with the transmission case 6.
With this configuration, most of the vertical
The load on the apex and mission case 6
The vehicle body frame 4
You don't have to demand much rigidity itself.
The weight of the frame 4 can be reduced, and the number of parts can be reduced.
Can be achieved. And the front part of the driver's seat 7 is also
Instead of being supported by the body cover 30,
The rear cover is used to support the
No incongruity in which the −30 is bent does not occur. In addition,
By forming the arm 4 into a triangular shape in side view,
Effective use of space on the side
The aircraft can be made more compact.
You. As described above, the side frame 4
Center frame for reinforcement installed in the width direction of 1.42
The center of the transmission case 6 is approximately at the center of the
An attachment member 47 to which the parts are connected is provided.
At the other end of the attachment member 47, a hydraulic lift for raising and lowering the planting portion 9 is provided.
The base of the descending cylinder 15 is connected. As described above, the vehicle body deflection
Connect the front, rear, and center of the transmission case 6 to the
The horizontal, vertical and torsion directions of the body frame 4
Rigidity and strength can be improved. And that
Mission case despite few mounting points
6 is a rice transplanter strength reinforcing member effective with the body frame 4
It has become. Next, the mission case 6 will be described.
You. FIG. 23 is a schematic side view of a lifting link mechanism, and FIG.
Is a partial cross-sectional view of the right side view of the transmission case, and FIG.
26 is an exploded cross-sectional view of the cushion case.
FIG. 2 is an exploded plan sectional view showing the configuration of the transmission gear at the front of the case.
7 is a left side view of the mission case, and FIG.
FIG. 29 is an exploded plan sectional view showing another embodiment of the transmission of the case.
Side sectional view and view showing another embodiment of the lower part of the transmission case
30 is a rice transplanter having another embodiment of the lower part of the transmission case
Fig. 31 is the front side of the transmission case.
FIG. 32 is a cross-sectional plan view showing a structure for attaching and detaching a cover for shifting.
Partial front cross section showing the differential mechanism at the lower front of the cushion case
Fig. 33 shows the refueling pie located at the front of the transmission case.
FIG. 34 is a side view showing the configuration of the
FIG. 35 is a side view showing a power connection / disconnection operation configuration.
FIG. 3 is a plan view, partly in cross-sectional view, showing a configuration of a power connecting / disconnecting operation to a base.
You. Diagram of internal mechanism of transmission case 6
This will be described with reference to FIGS. Mission case 6
A transmission chamber 60 in which a traveling transmission mechanism is provided is formed at the front.
Front axle cases
37 are integrally fixed. The front axle
The axle case moves downward from the left and right ends of the case 37.
A front wheel that is fixed and has the front wheel 2 fixed to the lower end of the axle case
A wheel shaft 66 is supported. Of the mission case 6
At the rear end is a cylindrical rear axle that has a shaft center in the left-right direction.
The rear axle case 38
A rear wheel drive shaft 69 is rotatably supported therein. The rear wheel drive
The rear wheel 3 is fixed to both left and right ends of the shaft 69, as in the related art.
Transmission case, transmission case, rear axle case, etc.
Has been abolished. As described above, the front axle case 37
And the rear axle case 38 integrated with the transmission case 6
If provided, the transmission case 6 supports each wheel 2.3.
It can be used as a body strength reinforcing member as described above.
Of the vehicle frame
The burden on the room 4 can be reduced. In addition, Missis
A plurality of ribs 6f are formed on the inner surface of the
The surface coefficient is increased, and the transmission case 6
There is a case. The swelling of the mission case 6 in the vertical direction.
As described above, the transmission has a transmission mechanism and a PTO shaft 6 inside.
A transmission chamber 60 in which the gear 5 is disposed is formed.
An axial center is provided in the upper and rear portions of the transmission chamber 60 which is bulged in
PTO shaft 65 is supported. In this way,
The rear of the transmission case 6 is one step lower than the rear of the transmission chamber 60.
That is, the transmission case 6
Is formed in a shape that swells above the upper surface on the rear side of the
PTO shaft rearward from the rear surface of the swelled transmission chamber 60
65 has a rear end protruding. Also the mission case
6, the rear part is inclined obliquely downward as described above.
Since it is arranged, the universal unit connected to the PTO shaft 65
PTO transmission shaft 158 having a monkey joint 159
Space can be widened, and the universal
Margin 159, PTO transmission shaft 158, etc.
Can be arranged. Then, the planting section 9 is lifted.
They do not interfere when they are dropped,
Stably transmitting the power of the PTO shaft 65 to the planting section 9
Can be. Above the transmission chamber 60 of the transmission case 6
The input shaft 56 is pivotally supported in the left and right directions, as shown in FIG.
As shown, the left end of the input shaft 56
A pulley 55 is fixed and is located laterally from the left side of the engine 5.
Driving pulley 53 fixed to output shaft 52 projecting
From the transmission case 6 via the belt 54
Is entered in The belt 54 is
The tension rod attached to the tip of the tension arm 57
Is configured to be tensioned by the
Operation of the push pedal 74 and the
Power is connected and disconnected in conjunction with the shift operation
I have. The drive pulley 53 on the engine 5 side
The belt wound around the driven pulley 56 on the case 6 side
54 and the transmission case 6 are disposed substantially on a straight line.
And a power transmission path for transmitting power to the front wheels 2 and the rear wheels 3
Has a space-saving and efficient arrangement. As shown in FIGS. 24 to 26, the input shaft 5
A main transmission shaft 61 is supported below and in front of the main transmission shaft 6.
A front wheel drive shaft 62 is pivotally supported below the front of the vehicle,
The power input to the
You. The front wheel shaft 66 of the front wheel 2 is
Of the input shaft 56.
A power transmission path that transmits linearly downward in the vertical direction is configured.
Have been. Therefore, the power transmission path can be shortened.
And a simple configuration with little power loss
And reduce the length of the axle case in the vertical direction.
And cost reduction can be achieved. The main transmission shaft 61 is provided in front of the input shaft 56.
A sub-transmission shaft 63 is supported above the input shaft 56.
And the main transmission shaft 61 has the sub transmission shaft 63 at the top in a side view.
Are arranged in an approximately isosceles triangle shape.
The configuration in the case 6 is simple. Also, rear wheel 3
The driving force to the rear wheel drive shaft 69 for driving the
Chain from the main transmission shaft 61 between the front wheel drive shaft 62 and
Rear axle drive unit below and below transmission case 6 via 70
In the direction in which the transmission case 6 is disposed.
A power transmission path is formed in the front, rear, high and low directions. That is, the rear part of the transmission case 6
In the rear axle drive section,
Driven shaft 67, counter shaft 68, rear
Wheel drive shafts 69 are arranged in order, and the chain 70
The power is transmitted to the driven shaft 67 and the rear
Power is transmitted to the wheel drive shaft 69 and is transmitted to the rear wheel drive shaft 69.
The drive transmission path of the transmission case 6
To the straight line from front to back and back to back.
The power transmission path is configured efficiently and efficiently. This power transmission path is the shortest path
As a result, the length of the chain 70 can be reduced,
Down the rear wheel drive shaft 69.
Since the height position is lower than the body frame 4,
The diameter of the rear wheel 3 can be reduced, and the size of the traveling vehicle can be reduced.
Can be planned. Here, power is transmitted to the rear axle drive unit.
Although the chain 70 is used as a
Is transmitted to an endless body such as a chain 70.
It is not limited, and as shown in FIG.
24 can also be used. In this case, the main transmission shaft 6
1 and a bevel gear 325 is fixed on the
Power is transmitted to the front of the transmission shaft 324 through the transmission shaft 32.
4 Connect the rear part and the driven shaft 67 via bevel gears 327 and 328.
And linked together. In the configuration using the transmission shaft 324,
Uses a chain 70 to produce a chain sound, etc.
Of the transmission case 6
A guide member is provided at the center to give tension to the chain.
There is no need to place the
The degree of freedom can be improved, and the transmission shaft 324 itself can be improved.
The body can be made rigid, and in the transmission case 6
The center part can be made even thinner, and accordingly the front of the steering wheel
The turning angle of wheel 2 can be increased, and the turning performance is improved.
And make the center part of the transmission case 6 thin in the vertical direction.
By doing so, the weight can be reduced. Further, as shown in FIG.
The shaft 68 is disposed at a position higher than the rear wheel drive shaft 69.
And the height of the lowermost part of the outer peripheral surface of the inner gear 104 and the gear 10
6 Set the height of the outer peripheral surface to the same
A of the transmission case 6
Make sure that the bottom is not too low
6, the height above the ground is raised and straw debris is drawn.
Make sure that they do not get stuck and go over the ridges smoothly
I am trying to. Also, as shown in FIG.
The shape of the rear lower part of the case 6
By having the same shape as the elevating locus of the seat 97,
The overall length is configured to be shorter. The rear axle at the rear of the transmission case 6
The drive unit is provided with a power connection / disconnection mechanism and a braking mechanism.
25, as shown in FIG.
The boss 101 is fixedly mounted on the outer peripheral surface of the boss 101.
The proket 100 is fixed and the chain 70 is wound.
ing. Sliding on the driven shafts 67 on both left and right sides of the boss 101
The gear 102 is spline-fitted, and the sliding gear 10
2 and side clutch 103 are integrated with the same number of teeth
To reduce the number of parts and to assemble
It is configured to be easy. Count on the sliding gear 102
The inner gear 104 pivotally supported by the
Rear wheel drive is provided to an outer gear 105 integrally formed with
A gear 106 fixed to the shaft 69 is engaged. The sliding gear 102 has a transmission case.
The fork fixed to the operation shaft 107 pivotally supported on the upper surface of the
The arm 108 fitted and fixed on the operation shaft 107
By rotating, the operation shaft 107 rotates, and the sliding gear
102 is slid. Slide the sliding gear 102 inward
Then, the inside of the sliding gear 102 is engaged with the boss 101.
Motive power is transmitted, and the rear wheel drive shaft 69 is driven. Sliding
When the dynamic gear 102 is slid outward, the boss 101
The engagement with the dynamic gear 102 is released, and the transmission of power is released.
At the same time, a pad formed at the outer end of the sliding gear 102
And the brake mechanism 130 constituted by the holding body is operated.
Then, the rotation of the sliding gear 102 is braked and the rear wheel drive shaft 6
9 is stopped. On the other hand, as shown in FIG.
The PTO input shaft 64 is supported at the rear, and the PTO
Back and forth from input shaft 64 via bevel gears 64a and 65a
Power is transmitted to a transmission shaft 65b having a shaft center in the
Power is transmitted to the PTO shaft 65 via the O clutch 109
Power from the input shaft 56 horizontally rearward.
To transmit power to the rear planting section 9
You. Also, a PTO lock for connecting and disconnecting power to the PTO shaft 65 is provided.
A gear type clutch is used for the latch 109,
A cylindrical body 65c is loosely fitted at the central part in the front-rear direction on the reaching shaft 65b.
Front part of the transmission shaft 65b in which the cylinder 65c is not loosely fitted.
And a clutch gear 110 is fixedly mounted on the front of the cylindrical body 65c.
The sliding clutch gear 111 is spline-fitted. The sliding clutch gear 111 has a
Affixed to the operation shaft 112 which is supported on the side of the case 6
The fork is fitted, and the operating shaft 112 is positioned near the driver's seat 7.
Planting elevator that also serves as PTO clutch lever
It is connected to the lever 77 in an interlocked manner, and the planting elevating lever 77
To operate the clutch gear 110 and the sliding clutch.
And the transmission gear 65b is moved backward.
Is transmitted to the PTO shaft 65. In addition,
A sliding clutch gear of a gear type clutch is provided at the rear of the cylinder 65c.
113 is slidably fitted with a spline, and the compression spring 11
4, a clutch gear fixed to the front of the PTO shaft 65
115, and the PTO shaft 65
A safety clutch 116 for transmitting power to the
You. The safety clutch 116 is a power transmission device on the planting section 9 side.
When a load is applied to the structure,
The force transmission is released, and the configuration of the planting portion 9 is changed.
I try to keep it simple. A reverse gear 117 rotates around the input shaft 56.
The first transmission gear 118 for traveling is provided on the auxiliary transmission shaft 63.
And a second transmission gear 119 are fixedly provided. The PTO shaft
The power to the input shaft 65 is a variable in which the power of the input shaft 56 is shifted between stocks.
Transmission via a speed mechanism, and
The case has been abolished. That is, the end of the input shaft 56
The reverse gear 117 circulated to the side of the
1 While the reduction gear 121 is detachably fixed,
The end of the TO input shaft 64 is also on the side of the transmission case 6.
A second reduction gear 122 that projects to the side and performs inter-gear shifting.
The second reduction gear 122 and the first reduction gear are detachably fixed.
A, the inter-stock shift is performed by meshing with
The power to the O-shaft 65 is transmitted. The PTO input shaft 64 is connected to the input shaft 56.
, The second reduction gear 122 and the first reduction gear
121 is located above the transmission case 6 and this
First reduction gear 121 and second reduction gear 12 for inter-stock shift
2 is detachably covered with a cover 123.
The position of the bar 123 is upward as shown in FIG.
You. By removing the cover 123, the first reduction gear 1
21 and the second reduction gear 122 can be interchanged.
The inter-stock shift can be adjusted according to the requirements. this
The transmission mechanism of the planting part 9 in the transmission case
Then, the configuration of the planting section 9 can be simplified.
Can be. In this embodiment, the cover 123 is
Fits into the side of the transmission case 6 for easy installation
Configuration. That is, as shown in FIG.
On the side of the case 6 according to the outer shape of the cover 123.
And the step 320 is formed, and the cover 123
Can be easily fitted together by
Integrating the cover 123 with the mission case 6
Can be. Further, a hole 123a is formed in the cover 123.
Open, insert the wing bolt 321 into the hole 123a,
Screwed into the side of the case 6 to form a mission case
The cover 123 can be securely fixed, and the step 3
Secure after fixing to 20 and incorporated inside
The first reduction gear 121 and the second reduction gear 122 are completely
Can be controlled. Furthermore, the inner surface of the cover 123
Are provided with convex portions 123b and 123c to reduce the speed of the reduction gear 121.
122 functional cover 1
There are 23 configurations. Also, as shown in FIG.
The mounting position of the wing bolt 321 is on the outside of the front wheel 2.
Id frame 41 below, from the side of the aircraft
The wing bolt 321 can be easily removed, and the cover 1
23, the first reduction gear 121 and the second reduction gear inside
The gear 122 can be easily replaced.
And maintainability is improved. Further, as shown in FIG.
The main transmission shaft 61 disposed at the lower front is slid in the axial direction.
Running gear 124 is spline-fitted.
The row transmission gear 124 includes a large-diameter gear 125 and a small-diameter gear 126.
With a gear that is integrally fixed laterally
, And slide left and right in conjunction with the operation of the main transmission lever 75
To the fork 329 to be mounted. Main transmission shaft 6
The sprocket is located on the left side of the transmission case 1
A power split gear 127 with an integrated gear is fixedly installed.
As shown in FIGS. 25 and 32,
So as to drive the left and right front wheel drive shafts 62
128 ring gears 305 are meshed with each other, and the power split gear 1
27 is used to split power in two directions. Then, the main shift lever 75 is moved to the neutral position.
When it is turned more forward,
And the transmission gear 124 is on the left side in the front-rear direction of the transmission case.
To the second gear on the small diameter gear 126 and the auxiliary transmission shaft 63.
The high speed gear 119 meshes with the main transmission shaft 61 to rotate at high speed.
By turning each wheel 2 ・ 3 at high speed
Running is performed. When the main shift lever 75 is in the neutral position,
When the vehicle is rotated one step backward from the
Sliding to the right in the front-rear direction of the transmission case, the large-diameter gear
125 meshes with first transmission gear 113 on auxiliary transmission shaft 63
The main transmission shaft 61 is rotated at a low speed to produce the wheels 2.3.
Driving at the speed of
Is The main transmission lever 75 is rotated backward.
Then, the traveling speed change gear 124 is moved in front of and behind the transmission case.
Gear 11 on the input shaft 56.
7 meshes with a gear on the main transmission shaft 61, and the main transmission shaft 61
The wheels 2 and 3 are reversely rotated to rotate backward.
As described above, the input shaft 56 is connected to the gear having the reverse gear.
Gearbox used in the transmission case
The PTO counter shaft, which is the input shaft to the PTO side, is omitted.
Normal traveling and work
Perform the minimum necessary traveling shifts such as traveling and reverse traveling.
And can be done. The side of the differential device 128 is
A flock mechanism 129 is provided. That is,
Locked on the side end of the ring gear 305 of the differential gear 128
Gear 305a is formed, and the gear 305a is
Lock body 30 splined on drive shaft 62
The engagement teeth 306a on the six side surfaces can be engaged. Said
The lock body 306 is urged outward by a spring 304,
It is urged to abut the step of the front wheel drive shaft 62
I have. In this position, the gear 305a of the ring gear 305
And the meshing teeth 306a on the side of the lock body 306 are not engaged.
The left and right front wheel drive shafts 62
62 is differentiated. Further, the outer periphery of the lock body 306 is
Is formed with a groove 306b, and is pivoted on the lower surface of the transmission case 6.
The supported lock operation pin 307 upper portion is engaged. Lock
The upper part of the operation pin 307 has a contact portion 307a in a semicircular shape on one side.
And the opposite side is a concave portion 307b. Mission
Lock operation pin 30 projecting below the lower surface of the case 6
Arms 308 and 309 protrude from the lower part of the right and left.
You. With the arms 308 and 309 facing left and right,
The concave portion 307b above the lock operation pin 307 is the lock body 3
06, and lock the lock body 306 with a ring gear.
A is located at a non-engagement position with respect to the door 305. Soshi
The arm 309 is provided with a differential lock operation lever shown in FIG.
-349 in conjunction with the arm 308.
309 corresponds to a steering operation of the steering handle 8 described later.
If it is turned beyond the set angle, it will be pulled
When the pin 307 is rotated in any direction, the contact portion 307a
The lock body 306 is pushed by the
5a is engaged. By this engagement, the ring gear 3
05 engages with the front wheel drive shaft 62 via the lock body 306
The locked state of the so-called differential device 128,
The left and right front wheel drive shafts 62 are not differentially driven.
It is. Further, a Misshi having such a speed change mechanism is provided.
In the case 6, as shown in FIGS. 24 and 25,
To suck the lubricating oil to the hydraulic lifting cylinder 15 side
Is located on the rear side of the transmission case 6.
It is located on the side and returns oil into the transmission case 6.
The return oil pipe 156 is located at the front of the mission case 6
The transmission case 6 is provided at the upper part of the speed chamber 60 to lubricate the transmission case 6.
Also used as a storage tank. Returning from the hydraulic lifting cylinder 15 side
The lubricating oil returned through the oil pipe 156 is
And lubricated through this part of the transmission gear.
Until the transmission gears etc. in the transmission chamber 60 are submerged.
It is not necessary to raise the level of the lubricating oil in the case 6
To reduce the amount of lubricating oil and reduce costs
In addition, the weight can be reduced. The suction pipe 157 is
A cylindrical suction fill interposed immediately before the axis 107
And communicates with the side of the counter 330. The suction pipe 1
57 to the transmission case 6 (suction
The arrangement of the filter 330)
9 is located just before the operation shaft 107 close to
Can be installed at a low place in the case 6
From the lower part of the case 6 to the upper middle part of the mission case 6
A tank that can store lubricating oil is formed in the area of
It is. Then, lubricate the lower part of the transmission case 6 with lubricating oil.
Suction pipe 157 via suction filter 330
To engage the transmission gears in the transmission case 6.
Lubricating oil from which more chipped or shaved debris has been removed
It is fed into the hydraulic lifting cylinder 15. Further, the suction pipe 157 is
It is attached to the rear side of the case 6 and is connected to the return oil pipe 156.
The front-rear distance has been increased, and the transmission case 6 has been
Heated from the side of mission case 6 while circulating
The heat of lubricating oil can be dissipated, improving cooling efficiency
I have. Further, the return oil pipe 156 and the suction pipe 157
Are arranged to face each other with the chain 70 interposed therebetween.
And return to the mission case 6 from the suction pipe 157
High temperature oil is stirred by driving the chain 70
Convection in the mission case 6
During the mission case can be cooled enough
The temperature of the oil in 6 can be made substantially uniform. The shape of the bottom of the transmission case 6
The shape is streamlined with a circular arc 6g in side view and planted
Even when running while immersed in the water in the field during work, resistance
It does not increase and the flow of water in this part is smooth
You. Then, the bottom of the mission case 6 is immersed in water.
The heat dissipation performance of this part improves,
Case 6 is formed long before and after to increase the heat radiation area.
Cool the internal lubricating oil together with the
Lubricating oil to the suction pipe 15 at the bottom of the transmission case 6
7 to work equipment such as hydraulic lifting cylinder 15
Hydraulic pulse drive type hydraulic lifting
The driving performance of the cylinder 15 can be kept high,
The part 9 can be moved up and down reliably according to the unevenness of the field.
You can. Further, as shown in FIG.
An oil supply pipe 331 is provided on one side of the upper front of the case 6.
The fuel supply pipe 331 is connected to the front upper engine 5 side.
And the upper part of the refueling pipe 331 is
・ Bends rearward and upward above 42 to face the driver's seat 7
Protruding. The upper part of the refueling pipe 331
332 is provided to lubricate the inside of the transmission case 6.
Even if the oil expands due to heat, exhaust the air inside
I have. The upper part of the refueling pipe 331 is connected to the steering
Covered by column 150, smell of lubricating oil in driver's seat
Good work environment by shutting off so that it does not flow into the 7 side
It is configured to keep. And the steering column 15
0 is removed with one touch and lubricated from oil supply pipe 331
Oil can be replenished, and this operation can be performed from the driver's seat 7 side.
It has excellent workability. Further, as shown in FIG.
The lower side of the front end of the gear 6, that is, below the transmission chamber 60.
In the part, a brake that operates the left and right brake rods 131
Through hole 133 through which the shaft 132 passes.
So that the transmission case 6 supports the brake mechanism.
It has become. Therefore, it is necessary to provide a separate support member
And the space of that part can be designed compactly
You. In the present embodiment, the opening of the through hole 133 is formed.
The position is located at the lower front of the mission case 6
Is a brake rod connected to the brake shaft 132
131 passes through the side of the mission case 6 as described later.
The structure of the lower front of the mission case 6 is simple
This area may be scratched by straw, grass, etc.
They do not wear and corrode. As the brake mechanism, two brake pedals are used.
A two-brake mechanism is used as shown in FIGS.
As shown by the left and right brake pedals 73a
When one of the members 73b is depressed, the
Brake shaft 132 constituted by a double cylinder
Either cylinder rotates.
Left and right brake rods 1 linked to each cylinder
31 operate separately, and brake rod 1
31 The arm 108 linked to the rear end rotates
The sliding gear 102 slides outward to transmit power.
Is released, and at the same time, the brake mechanism 130 operates.
The rear wheel drive shaft 69 on the side where the stepping operation is performed is braked,
Only the rear wheel drive shaft 69 drives to sharply turn the traveling vehicle 1
It is designed to be turned. Both when driving on the road
If you want to apply the brakes at the same time,
With the use of the connecting tool 135 for connecting the dal 73
I have. Conventionally, as shown in FIG.
Arm 10 for operating the braking of the wheel drive shafts 69
8.108 is located below the rear of the transmission case 6.
The arms 108 and 108 and the brake shaft 132
The brake rod 131 linked to the
Is located below the mission case 6 where
It is easy to be attached, and it becomes easy for straw waste and grass to get entangled.
And hit the brake rod 131 when going over the ridge.
It was arranged to be easily damaged when attached. In this embodiment, the rear wheel drive shaft 6
9. Arms 108 and 108 that operate
The arm 108 is located above the rear of the
108 Outer end outside the left and right sides of mission case 6
It is protruded and is linked with the brake shaft 132.
The brake rod 131 to be moved is on the left of the transmission case 6.
It is connected through the right side. Therefore, the bottom when working
The operation interlocking section is located below the mission case 6
Arms 108 and 108 and brake rods 131 and 13
Since it is not configured to arrange 1 etc., as described above
No mud, etc. adheres and straw debris, grass, etc. are caught
It does not cause any troubles such as rubbing, and can be used even when crossing ridges
It cannot be kicked. Next, the steering drive will be described. Figure
37 is a side view of the lower portion of the steering shaft, and FIG.
FIG. 4 is a plan view showing an interlocking configuration between the steering operation and a differential lock mechanism.
You. As shown in FIG. 9, FIG. 37, and FIG.
In the rear and in front of the mission case 6, a steering hand
A steering shaft 81 of dollar 8 is arranged,
This steering shaft 81 is formed in a straight shape.
You. And, it is arranged at the lower end of the steering shaft 81.
The steering drive 80 is located below the engine 5
It is arranged so that it is located
It overlaps with Engine 5. Further, as shown in FIG.
And the same angle as the inclination angle of the straight steering shaft 81
Every time, that is, substantially parallel to the steering shaft 81.
So that the front upper surface 6e of the transmission case 6 is inclined.
Transmission case 6 and steering shaft
81 can be prevented from interfering with each other.
You. As described above, the engine 5 and the transmission case
6 are arranged side by side, with a straight
If the shaft 81 can be arranged,
A joint part such as a steering gear case is installed.
And the number of parts can be reduced.
You. Therefore, simplification of mission case 6 and saving
Can be realized, and the effective use of space in that part
Can be used. Also, the steering drive unit 80
Is overlapped with the engine 5 in plan view,
The overall length of the aircraft can be shortened compared to
Since the space below the gin 5 can be used effectively, stearin
The degree of freedom in designing the drive unit 80 can be improved.
You. And furthermore, the engine 5 is lower than the body frame 4.
So that the steering drive
80 will also be located on the lower side, low center of gravity and workability
An excellent rice transplanter with a good fall angle can be realized.
Also, when entering or leaving a field, especially when moving backwards
The swollen front lower part of the mission case 6 is mudguard
To prevent mud from adhering to the steering drive unit 80 as much as possible.
Can be stopped. Further, the steering of the steering drive unit 80
The gear 82 is a steering shaft of the steering wheel 8.
Gear 81 provided at the lower end of the
The turning shaft 84 is moved to the center by turning the steering handle 8.
Pivotally connected to the front sides of the steering gear 82.
Operate the pair of left and right steering rods 85
The front wheel 2 is configured to change its direction. In addition,
An operation shaft 86 is inserted almost at the center of the steering gear 82.
A long opening 82a is formed in the left-right direction.
The rotation range of the steering gear 82 is regulated by its operation shaft 86.
I try to control. Further, the unit of the steering gear 82
, As shown in FIG.
Is attached to the attachment member 51 from below by
There is no need for a space for a fastening tool above the mounting member 51.
Can be easily assembled and disassembled.
To lower the height of the center of gravity to further lower the center of gravity.
It is configured to be able to. Then, the aforementioned differential lock mechanism 129
The operation is performed, as shown in FIG.
The lock operation lever 349 is used. During work
When the front wheel 2 slips into muddy fields,
The operation of lifting the differential lock operation lever 349 upward
By performing this operation, the arm 30
9 is rotated to lock the differential gear 128 as described above.
And the left and right front wheel drive shafts 62
And the front wheel 2 does not slip
The aircraft can escape from the dullness. Further, the above-described differential lock mechanism 129 is operated.
It can also be linked to the turning operation of the direction handle 8. Figure
38, each end of the arms 308 and 309
The diff lock rods 310 are protruded further forward,
Guide plates 311, 311 are formed at the front end,
The steering gear 82 has an elongated hole 311a and an interlocking arm.
312 to form an interlocking means.
The differential device 1 is rotated by rotating the handle 8 at a certain angle or more.
28 is locked. That is, as shown in FIGS. 32 and 38,
It is pivotally supported by an operation shaft 86 below the steering gear 82.
The interlocking arm 312 is provided and the interlocking arm 312 is provided.
The pins 88 projecting from both left and right ends of the
11 and inserted into the long hole 311a,
A projection projecting from the lower surface behind the opening 82 a of the gearing 82.
The joint 89 is rotated by a rotation of the steering handle 8 beyond the set angle,
The rotation of the steering gear 82 causes the
Contact arm 312 and pivot the interlocking arm 312
And insert it into the elongated hole 311a according to the rotation range.
Guide pin on either side via the pin 88
Activate the rate 311 and the diff lock rod 310,
Arm 3 linked to differential lock rod 310
08 (or arm 309)
The lock body 306 and the ring gear 305
That is, the differential lock mechanism 129 is actuated.
In addition, the interlocking arm 312 is formed in a “H” shape in plan view.
And the pins 88 at the left and right ends of the interlocking arm 312.
Are located inside the left and right ends of the ring gear 305.
I have. With such a configuration, the steering
By rotating the handle 8, the engaging portion 89 is moved to the interlocking arm 31.
2 is opened when the differential lock mechanism 129 is actuated by contact
The starting time is when the steering wheel 8 is fully operated (the front wheel 2
Before the maximum angle). Therefore, the operation
Operating the steering wheel 8 to the maximum, the inner front wheel 2 in the turning direction
The driving force to be transmitted to the outside front wheel 2 is transmitted
The differential lock mechanism 129 must be
Actuate to transmit power equally to both left and right front wheels 2
The turning is suppressed and the turning steering is performed accurately. In addition, before
The interlocking arm 312 is provided by a toggle spring (not shown) or the like.
It is urged to the vertical position (the left and right direction of the interlocking arm 312) to
When the steering handle 8 is operated to the neutral side, the interlocking arm 312
Returns to neutral and stops the operation of the differential lock mechanism 129
Like that. Further, the front part of the diff lock rod 310 is
The guide plate 311 is slidably inserted back and forth into the rear surface,
Front of diff lock rod 310 and after guide plate 311
A coil spring 313 is interposed between the
Guide plate 31 via moving arm 312 and pin 88
1 is turned forward through the coil spring 313
And pull the differential lock rod 310 forward.
To form a buffer member. Therefore, the steering handle 8
Operate the operation larger than a certain range to make the differential lock machine
The structure 129 can be operated, and the differential lock mechanism can be operated.
129 while further turning the steering wheel 8
Can be made. At this time, the differential device 128 is locked.
Resistance is absorbed by the coil spring 313 which is a buffer member.
And the transmission of that resistance to the steering wheel 8 is suppressed.
And good operability can be obtained. Also, differential lock
Gear 305a of ring gear 305 constituting mechanism 129
Meshing position between the gear and the meshing teeth 306a on the side of the lock body 306
The lock body 306 can be made to stand by until it fits in,
There is no tooth spillage or the like. The cushioning member is a differential lock rod 3
10 is divided into front and rear parts and slidably connected.
You can also. Also, by providing the buffer member,
Therefore, at the time of steering other than in the field, the arm 308 (or
Of the steering handle 8 by forcibly fixing the rotation of the arm 309).
Of the differential lock mechanism 129 even when the cutting angle of the
It can also be prevented from being activated. Also, the amount of turning operation of the steering handle 8 is limited.
On the other hand, adjust the size of the long hole 311a or adjust the size.
Before the turning angle is maximized, the differential lock 129 is set.
Is activated. As shown in FIG. 16 and FIG.
Main clutch pedal located on the left side in the traveling direction
A seedling splicing lever 76 is provided in the vicinity of
The engine pedal is operated by operating the
Belt for transmitting power from the transmission 5 to the transmission case 6
It is configured so that the tension of 54 can be turned off.
ing. And in those operation systems, one operation
Operating one tool does not affect the other
Is provided with an accommodation mechanism. This accommodation mechanism, for example,
For example, as shown in the side view of FIG.
Pivotally supported by a bracket 142 provided on the pivot 141
A long hole 140a is drilled in the interlocking rod 140
The belt tension is turned on and off.
A fitting member 14 such as a pin protruding from the arm 57
3 is inserted through the elongated hole 140a. Therefore, the seedling connecting lever 76 is directed backward.
34 in the direction of the arrow in FIG.
40 moves downward and is inserted through the elongated hole 140a.
The tension arm 57 is moved downward through the fitting member 143.
And is attached to the tension arm 57.
Release the tension roller 58 from the belt 54 and
The tension is turned off. one
34 and FIG. 3 when the main clutch pedal 74 is depressed.
As shown at 5, an L-shaped bra fixed to the pedal support
Pressing member 14 such as a pin attached to the bracket 144
5 is fixed to the rotation shaft 59 of the tension arm 57
Push the cam 146 to rotate the tension arm 57 downward
The belt tension.
Is turned off. Because of this,
Even if the clutch pedal 74 is depressed, the tension arm 5
No. 7 in which the insertion member 143 is drilled in the interlocking rod 140
Just move in the hole 140a, and
The seedling lever 76 does not affect
Needless to say, it does not affect the clutch pedal 74.
No. In any case, the same operation for stopping all power
Nursery splicing lever 76, which is a manual operation tool, and foot movement operation
Since two main clutch pedals 74 are provided,
You can operate them while on or off the body
And the manual operation lever and foot movement operation tool
With a pedal, it is easy to identify and operate both
There is no erroneous operation. And furthermore, belt tension
The wire is not used for the mechanism to turn off the
As a result, the operating force is light and durable, and maintenance is easy.
Easy. In addition, the "cut" position of the seedling connecting lever 76
An electrical switch that allows the engine to start only
And the main clutch pedal 74 must not be depressed.
Also starts engine 5 using recoil starter 153
You can make it. Further, the tension arm 57 has the structure shown in FIG.
5, the transmission case 6 as shown in FIGS.
Member 1 for stopping rotation of driven pulley 55 on the side
47 is fixed, and the brake member 147
When the arm 57 rotates downward,
The moving pulley 55 is configured to be pressed. Sand
The transmission arm 6 side of the tension arm 57
The slide support plate 301 is protruded from the
01, a supporter 303 having a U-shape in side view is arranged on the lower surface,
The front and rear side surfaces of the support 303 are slidably slidable back and forth.
A member 147 is supported, and a front portion of the brake member 147 is made of rubber.
And the like, and the elastic body 149 and the support
A spring 148 is interposed between the brake member 303 and the brake member 1.
47 is urged toward the driven pulley 55 side. Therefore, the tension of the belt 54
Is set to “OFF” and the elastic body 149 is connected to the driven pulley 5
The rotation is stopped by pressing into the pulley groove of No. 5.
The brakes on the entire aircraft.
And load or load the traveling vehicle 1 on the truck bed.
Run on the Ayumi board to lower or
The worker who got off the traveling vehicle 1 when crossing the ridge when entering and leaving
The traveling vehicle 1 is stopped by operating the seedling connecting lever 76.
And the operability becomes very good.
I have. Also, when traveling outside the field, the main clutch pedal
Even if the pedal 74 is depressed, the tension arm 57
The brake member 147 is driven
The driven pulley 55
There is no braking. In addition, the elastic body 149 is
It is configured to be replaceable in case of wear and maintenance
The nonce is made easy. And furthermore
If the elastic body 149 is baked on a metal core, the durability is improved.
Can be up. Further, the slide support plate 301
The long holes 301a, 301a long to the left and right in the row direction
It is open to the right. Above the long holes 301a
Bolts 302
The closed surface of the support 303 is screwed into a slide support plate.
The support body 303 and the brake member 147
It is slidably supported left and right. Therefore, the brake section
The elastic body 149 at the tip of the material 147 is
It is at right angles to the re-groove and is adjusted to press accurately.
Can be Therefore, the driven pulley 55 was braked.
Sometimes braking without noise
Can be. Also, the brake member 147 is formed in a “U” shape.
At two places using the front and rear sides of the support 303
To increase the supporting rigidity of the driven pulley 55 in the rotation direction.
The elastic member 149 at the end of the brake member 147
It can be pressed strongly against the pulley groove of the rib 55,
The reliability of the work has been improved. Further, the bolt 302
The support 303 is removed by unscrewing the 302
Replacement work of the elastic body 149 at the end of the brake member 147
Can be easily performed. Next, the planting section 9 will be described. Figure 39 is planting
40 is a sectional plan view of the transmission frame 92, and FIG.
41 is a side view of the hitch, and FIG.
Fig. 43 is a side view of the hitch at the bottom of the seedling table.
FIG. 44 and FIG. 44 are perspective views of the hitch, and FIG.
FIG. 46 is a side view of the seedling mounting table. [0110] The planting transmission frame 92 is parallel to the left and right described later.
Transmission pipes 164 and 165 arranged in the front-rear direction
Horizontal chain connected via a U-shaped pipe joint 167a / 167b
The planting transmission frame 92 is composed of a connecting pipe 166.
The drive case 172, the crank mechanism 171 and the seedling support
A frame 190 is attached to the planting transmission frame 92.
A cross arranged at the front of the left transmission pipe 165
The front side of the mold fittings 167a and 167b
The support plate 174 is projected from the
The support plate 1 faces forward and upward from the right front part of the IP 166.
75 protrudes in parallel with the support plate 174,
Rolling fulcrum forward from the left and right center of the connecting pipe 166
A connecting member 260 for fitting the shaft 176 is provided. That is, the configuration of the rolling fulcrum is shown in FIG.
9, connection of the planting transmission frame 92 as shown in FIG.
The pipe 166 has a connecting member 260 at the center in the left-right direction.
The connecting member 260 is connected and fixed to the connecting pipe 1.
Extends forward from 66, with the front part wider in the left-right direction
The upper part of the front part is formed in a substantially gate shape in side view
And a bracket fitted to a lower portion of a hitch 94 described later.
260a are formed. Also, the bracket 260a
The pipe 260b is inserted and fixed to the front and rear walls in the front and rear direction.
Have been. On the other hand, the rear link mechanism 10
The switch 94 is, as shown in FIG. 41 and FIG.
The lower part has a tapered shape that is wider, and its cross section is
It is formed in a substantially U-shape in plan view, with its open part facing backward
And the lower rear is fixedly closed by a plate.
You. By fixing the planting section 9 in this way, the most powerful
Efficient to increase the strength under the hitch 94
It has a simple shape. And of the hitch 94
Top link pivot pie at the top and bottom of each side
And the lower link pivot pipe 94j is fixedly mounted.
And the top link 11 is
The lower link 12 is pivoted on the lower left and right sides.
Is pivoted by The lower part of the hitch 94 extends downward.
Forming a substantially gate-shaped bracket 94a to be opened in a side view
And a size that can just fit the bracket 260a.
The joint holes 94 are formed in the front and rear walls of the bracket 94a.
b.94b is drilled according to the position of the pipe 260b
Have been. And whether it is above the bracket 260a
Fitting the bracket 94a and the pipe 260b
・ Align the center of 260b and the joint hole 94b
The rolling fulcrum shaft 176 shown in FIG.
Stopper plate 176a fixed to the bearing fulcrum shaft 176
To the lower part of the front surface of the hitch 94 with fixing means such as screws.
I have. In this way, the planting transmission frame 92 is hitched.
And is pivotally connected to the cable 94. With such a configuration, the planting section
9 is rollably connected to the machine,
No need for hitch base parts such as bearings
And the rolling fulcrum shaft 176 is also a conventional rolling shaft.
Smaller parts are required, no quenching or polishing is required and cost reduction
I can plan. Further, on the upper portions on both sides of the hitch 94,
Hook holes 94c, 94c ...
And the seedling table 91 is inclined in the hook hole 94c.
Rolling correction spring 2 to return to horizontal when touched
One end of 62 is hooked. And the rolling
The other end of the correction spring 262 is, as shown in FIG.
A hook drilled on the guide rail 96 on the back of the seedling mounting table 91
Are hung in the holes 96b. Thus, the hook hole 94c is
Since it is provided on the side, the rolling correction spring 262 is hung.
If the work is done with hook holes on the top of the hitch as in the past,
The hook hole 94c is provided with the rolling correction spring 262 as compared with the case.
Easy to do because it is located almost perpendicular to the hook
Can be. The hook holes 94c are vertically arranged, and
By adjusting the hook position, the rotation direction of the seedling
And efficient correction can be performed.
Then, the other hook hole 96b is directly connected to the guide rail 96.
Simple because it does not require a spring stay
In addition to the configuration, the rolling correction spring 262
It is closer to the seedling mounting table 91, and
The spring 262 is fixed to the guide rail 96 (right and left of the seedling mounting table 9).
It is almost parallel to the rotation plane, and the right and left inclinations (see
The spring force is more efficient so that the
It is designed to work well. Further, as shown in FIG.
Spring 262 is hooked by hooks at both ends.
The direction is 180 ° out of phase, and
At least one hook is provided outside the circumference of the coil
45, as shown in FIG.
The rolling correction spring 262 is inserted into the hook hole 96b from the front side.
Hook portion, and the other hook portion is shown in FIG.
To the hook hole 94c from the open surface at the rear of the hitch 94.
A set of rolling correction springs 262
Finding is easy. Further, the rolling supplement
After assembling the positive spring 262, the rolling correction spring 26
2 and guide rail 96 to prevent rolling
It is configured to transmit the elastic force by the positive spring 262 efficiently.
Have been. Further, the hook holes 96b are provided in the guide rails 9.
6 at multiple locations in the left-right direction
By changing it, you can adjust the spring force
I have. The hitch in which the hook hole 94c is formed
Since high strength is not required on the upper side of 94,
A cutout hole 94d is provided in the front wall, and
It is easy to check the inside of the switch 94 to improve the assemblability.
Both are designed to reduce weight. On the other hand, in the vertical direction of the hitch 94,
Wire bracket for raising the marker on both sides of the
94e and 94e are mounted so that they protrude outward.
ing. The wire bracket 94e is substantially L-shaped in side view.
The side wall is formed with a wire groove 94.
f, 94 g are provided, and the upper wall has a flange for the correction spring 263.
A lock hole 94h is formed. Thus, the conventional correction
Remove the bracket attached to the spring and remove
The left and right ear brackets 94e can be used for both
To reduce costs. And figure
44, the correction spring 26 hung on the hook hole 94h.
3 is attached to the front of the connecting member 260
Hooks 260c, so that the planting portion 9
Correct the ringing. [0118] Also, it is arranged on the center float.
The correction arm for controlling the planting depth moves left and right from the center of the aircraft.
Direction, the marker pull
It is necessary to avoid interference between the lifting wire 266 and the correction arm.
You. Therefore, the position of the correction arm is shown in FIG.
If the wire bracket is eccentric to the right
94e, the depth of the groove of the wire groove 94f
Is formed to be deeper than the depth of the wire groove 94g.
are doing. And the wire bra on the left side in FIG.
In the case 94e, the marker is formed by the wire groove 94f.
Support the lifting wire 266, and the right
In the slot 94e, the marker is drawn by the wire groove 94g.
The lifting wire 266 is supported. In this way,
The center of the path of the marker lifting wires 266
By eccentricity to the right side of the body center in FIG.
This prevents interference with the positive arm. Further, the wire brackets 94e on both sides
94e has both wire grooves 94f and 94g, respectively.
Is mounted. This allows the wire
-The same parts are used for the left and right sides of the bracket 94e.
Cost reduction in the part manufacturing process
Is possible. In the present embodiment,
Change the groove depth to a wire bracket 94e of the same length.
The marker pull-up wire 266
The road is adjusted, but the left and right wire brackets 94e
Prepare a different length of the marker pulling wire
It is also possible to adjust the path of 266. Next, FIG. 45 and FIG.
The support structure of the tone 264 will be described. Seedling stand 91
Harness support at the center in the left and right direction on the back side rail 91a
The member 91c is mounted. And wire harness
264 is a support hole provided in the harness support member 91c.
91d is passed through from above and locked, and below the seedling mounting table 91
Has been extended to. The harness support member 91c
The guide rod 265 is located near the rear of the support hole 91d.
It is pivotally supported so as to be rotatable in the horizontal direction. The guide rod 265 has a spiral shape.
Shape of the wire harness
Guide 264 to contain
And extends further forward. With such a configuration,
By guiding the wire harness 264,
The ear harness 264 does not sag or swing,
Interference or entanglement with the correction spring hook 262 or the hitch 94
To prevent the And the guide lock
265 locks the wire harness 264 at the spiral part.
Since the ramp is used, the guide in the middle of the conventional wire harness
It does not require a separate member for clamping to perform
Reduction is possible. Also, the guide rod 265
Can be rotated in the horizontal direction, so that the seedling
Even if moved, the bending of the wire harness 264 can be prevented.
It is. FIG. 47 is a plan view of the seedling table support frame 190.
FIG. 48 is a plan view of the float support portion, and FIG.
FIG. 50 is a side sectional view, and FIG.
1 is a view showing a connected body portion on the back side of the seedling mounting table, and FIG.
FIG. 53 is a perspective view of a conventional connector, and FIG.
4 is a left side view of the front of the planting frame, and FIG.
FIG. 56 is a side view of a vertical feed roller,
Fig. 57 shows an outline of the seedling table where the seedling table shoes are arranged on the left side.
Schematic diagram, Fig. 58 shows seedlings with seedling stand shoes placed on the right side
FIG. 59 is a schematic view of the stand, and FIG.
is there. As shown in FIG. 43, FIG. 47 and FIG.
The seedling support frame 1 is integrally attached to the transmission frame 92.
90 is fixed by welding or the like,
Reference numeral 190 denotes a rear view portal type, and the lower left end is the support plug.
The seedling table driving case 17 is fixedly installed inside the rate 174.
2 Increase the rigidity to increase the strength, and place the right side on the front side
The cross-shaped pipe joint 167a is fixed. Accordingly
It has a simple structure with pipes connected
And the planting transmission frame 92, which has ample space,
The crank mechanism 171 and the seedling table driving case 1
72, the support portion of the transverse feed shaft 180 is firmly fixed,
And a durable support part that is strong against shocks. Then, the side frame of the seedling table support frame 190
Seedling amount setting lever 1 forward and downward from the right side of frame 190a
96 lever guides 178 are protruded from the horizontal frame 19.
Lever of the planting depth adjustment lever 79 forward and downward from the left side of 0a
A guide 179 protrudes. The seedling support frame
On the opposite sides of the seedling table 91,
The roller member 199 that fits into the
Are placed. Next, the planting transmission frame 92 will be described.
I do. Since the planting portion shown in FIG. 39 is for four-row planting,
Four hooks 93 are provided, and the driving force is applied to the planting nails 93.
The transmission pipes 164 and 165 for transmission are arranged one by one on the left and right.
Is established. The front of the transmission pipes 164 and 165 are horizontal
It is connected by a connecting pipe 166 and has a portal transmission
The frame 92 is formed integrally and the gate is opened.
Side is turned rearward, on both left and right sides of the left and right open side ends
A planting claw 93 is arranged. In addition, this transmission pipe 1
A transmission shaft is provided inside the horizontal connecting pipe 166 and the horizontal connecting pipe 166.
It is pivoted. Thus, the planting transmission frame 92 is constructed.
By doing so, manufacturing costs can be reduced and rigidity can be reduced.
The weight of the entire planting section 9 is reduced because the weight is reduced for high cost.
The lifting link mechanism 10 and the body frame can be reduced.
4 can be reduced. Further, the transmission power of the planting transmission frame 92 is
The pipes 164 and 165 and the horizontal connecting pipe 166 are rod-shaped steel pipes.
And laterally connected to the transmission pipes 164 and 165
The pipe 166 is a cross-shaped pipe joint 16 having a cross shape in a plan view.
7a and 167b. The transmission pie
164/165 and cross-shaped pipe joint 167a / 167
b aims at cost reduction by using a commercially available product,
The diameter of the opening of the cross-shaped pipe joint 167 is disposed therein.
Power transmission members such as transmission pipes 164 and 165
Larger than holding members such as bush and bevel gear
For easy insertion, assembly and maintenance
And The cross-shaped pipe joints 167a and 167b
One of the cross-shaped parts is cut short and
The opening serves as an insertion opening so that the lid 168 is attached and closed.
Insert the shaft from this part to assemble or change gears.
Maintenance such as replacement and lubrication can be performed. [0127] The right side of the horizontal connecting pipe 166 is fixed.
The cross-shaped pipe joint 167a is provided with a transmission shaft 18 at the right opening.
7, the cover 168 is inserted and fixed, and the transmission shaft 187 is inserted.
The right end of the cross-shaped pipe joint 167 through the bush 170
a at the left opening of the transmission shaft 187, and beveled at the end of the transmission shaft 187.
The gear 187a is fixed. The cross-shaped pipe joint 16
At the front opening 7a, the planting input shaft 185 is inserted,
The planting input shaft 185 is rotatable by the ring 400a.
Supported and the bevel gear 18 in the cross-shaped fitting 167a.
5b is fixedly engaged with the bevel gear 187a.
You. Insert and fix the front end of the transmission pipe 164 into the rear opening
I have. The left cross-shaped pipe joint 167b has a right opening.
Insert and fix the horizontal connecting pipe 166 to the left
The left side of the transmission shaft 187 is rotatable with the bearing 400b.
And a transmission shaft 187 in the left cross-shaped pipe joint 167b.
A bevel gear 187b is fixed on the top, and at the left opening end
Fix the support plate 174, and attach it to the support plate 174.
The seedling table driving case 172 is fixed, and the seedling table driving case is
The transmission shaft 187 is inserted into the 172. Said left cross
The transmission shaft 186 is inserted through the front opening of the pipe joint 167b.
The transmission shaft 186 is inserted and fixed with the lid 168.
The bush 170 supports the rear opening, and the transmission shaft 186 has the front end.
A bevel gear 186b is fixed to the
7b, and into the rear opening of the left cross-shaped pipe joint 167b.
The front end of the transmission pipe 165 is inserted and fixed. After the left and right transmission pipes 164 and 165
Rear cruciform pipe joints 169 and 169 are fitted at the ends.
And the rear cruciform joint 169 is
The rear cross-shaped joint has substantially the same configuration as the hand 167.
The front opening of the transmission pipes 169 and 169
And the rear portions of the transmission shafts 185 and 186 are closed.
Brushes 170 and 170, and
Bell gears 185a and 186a are fixed. Rear opening
Is fixed with lids 168
Is a planting claw drive shaft via bearings 400c and 400c
184, which are rotatably supported and arranged on both sides
The power is transmitted to the lock mechanism 171. Further, at the rear of the transmission pipes 164 and 165,
After arranging the cross-shaped pipe joints 169, 169,
A crank support arm 173 protrudes rearward and upward, and
The rear part of the crank support arm 173 is shown in FIGS.
As shown in the figure, a pivot 181 is formed.
181, the base of the link 401 of the crank mechanism 171 is pivoted.
A supporting pin 182 is fixedly provided. Also, the left and right pivots
The space between the parts 181 is supplemented by a reinforcing member 183 of a portal type in plan view.
And the crank mechanism 171 can be firmly pivoted.
I am able to do it. The crank support arm 17
3 The rear part is bifurcated in two directions to form a substantially Y-shape in plan view
Alternatively, the pivot 181 may be configured. The rear end of the crank support arm 173
The link 401 of the crank mechanism 171 is provided on each of the left and right sides.
Is pivoted, and a planting claw 93 is attached to the other end of the link 401.
The base of the swing arm 402 attached is pivotally supported while the transmission
Rear cross-shaped pipe joint 169 at the rear of pipes 164 and 165
169 are pivotally attached to both ends of the planting claw drive shaft 184.
Arm 403 is fixed, and the other end of the rotating arm 403 is
The pivot arm 402 is pivotally supported at an intermediate portion, and
By rotating the computer 403, the planting claws 93 are closed.
The rank exercise. The input shaft 185 is connected to the front right cross
Portion of the mold pipe joint 167a projecting forward from the lateral direction
To the PTO via the universal joint 159
One end of the driving shaft 158 is connected, and the PTO shaft 65
Power of the PTO transmission shaft 158 and the universal joy
The communication is transmitted via the client unit 159. Therefore, the transmission
It is simple, the number of parts can be reduced, and the cost is reduced.
be able to. A bevel gear is provided at the rear end of the input shaft 185.
185a is fixed, and is fixed in the middle of the planting claw drive shaft 184.
The bevel gear 184a to be set is meshed with the planting claw drive shaft 1
84 is driven. Also, on the front side of the input shaft 185,
Has a bevel gear 185b fixed thereto, and a connecting pipe 166.
Meshes with a bevel gear 187a fixed to the end of the transmission shaft 187;
Thus, power is transmitted to the transmission shaft 187. The transmission shaft
A bevel gear 187b is fixed to the left side of the 187,
At the front of the transmission shaft 186 in the transmission pipe 165
It is meshed with the bevel gear 186a and transmitted to the transmission shaft 186.
And a bevel gear 186 fixed to the rear end of the transmission shaft 186.
b and the bevel gear 184a through the planting claw drive shaft 184.
Is driven, and arranged on the rear side of the transmission pipes 164 and 165.
4 by driving the crank mechanism 171 to be placed.
Rotate to draw the locus shown in 9 and plant seedlings
It is supposed to do. Therefore, there is no power loss.
Efficient and simple power transmission mechanism
You. Next, the power to the seedling table such as the transverse feed shaft 180
The transmission mechanism will be described. Of the support plate 174
A seedling table driving case 172 is fixed on the outer side surface.
The fitting portion between the holding plate 174 and the seedling mounting drive case 172 is
No packing is required, water does not enter, and assembly is easy.
As shown in FIG. 50, as shown in FIG.
Step around the support plate 174 that fits the outer periphery of
174a is formed. The support plate 174 has a front portion and a front portion.
The support plate 1 fixed to the right side of the horizontal connecting pipe 166
75 at the front, bearing 405 and boss 406 respectively
A transverse feed shaft 180 is supported via the shaft. The transverse feed shaft 1
80 rattles between support plates 174 and 175
To the boss 406 so that
Shims 407 and 407 between the holding plates 174 and 175
Is interposed so that the gap can be easily adjusted.
You. The left end of the lateral feed shaft 180 is the seedling table driving case 1
72. The transverse feed shaft 180 is a connecting pipe
166, and is arranged in parallel with
180 is located above the rolling fulcrum shaft 176.
The support structure for the traverse shaft 180 is simplified,
The arrangement configuration is good. The transmission shaft 187 in the connecting pipe 166
The left end is also inserted into the seedling table driving case 172,
A gear 188 is fixed to the section, and the seedling table driving case 17 is fixed.
Gear 189 is also provided at the left end of the transverse feed shaft 180 inserted in
Is fixed, and the gears 188 and 189 mesh with each other.
Seedling table drive mechanism for transmitting power to the lateral feed shaft 180
Is configured. Slider slides on the traverse shaft 180
A groove 180a for movement is formed, and
The slider holder 191 is loosely fitted on the outer peripheral surface, and the slider holder 1 is inserted.
Slider 192 provided in 91 fits into groove 180a
Into the groove 180a with the rotation of the traverse shaft 180.
Slider receiver 191 slides on the horizontal feed shaft 180
Reciprocate right. The rear part of the slide receiver 191 is located at the seedling mounting table 91.
Is fitted and fixed to a connecting body 410 provided on the back side of the connector. Subordinate
The conventional connecting body 410 'is formed in a U-shape as shown in FIG.
The sliding member receiver 191 is connected to the connecting body 4 from above.
After inserting the flat head pin 411 into the connector 410 '
But the number of parts was large,
Since the flat head pin 411 is passed after the platform is assembled, troublesome work
It was. Therefore, in the present embodiment, FIGS.
As shown in FIG.
Work, and the upper part of the connecting body 410
Notches 410a are provided to the extent that they do not come off, making assembly easier.
It is easy to do. In this way, the seedling mounting table 91
Are connected, and the seedling mounting table 91 is
Is accurately reciprocated right and left. Further, as shown in FIG. 39 and FIG.
In view, the human-powered shaft 185
A vertical feed cam 193 is provided at a position above the
The vertical feed shaft for driving the feed cam 193 is eliminated, and the horizontal feed shaft 1
80 is also used as a vertical feed shaft. I
Therefore, the number of parts is reduced and the cost is reduced.
I have. The outer side (right side) of the vertical feed cam 193 is shown in FIG.
As shown in FIG. 4, a cam cover 412 is provided to
Driven cam (cam cam) around the rotation of the
Follower) 413 (FIG. 46).
The operator can reach in and injure himself.
Wire harnesses, etc.
Stopped. The vertical feed cam 193 is located on the back side of the seedling mounting table 91.
(Front) Can contact the driven cam 413 provided at the bottom
And two driven cams 413 are provided on the left and right.
The distance between the driven cams 413 is set at 9
1 is the same as the moving distance of 1.
At the end position of the backward movement, the vertical feed cam 193 and one
The moving cam 413 is brought into contact with the moving cam 413. The driven power
413 is a vertical feed shaft via a one-way clutch.
414, and the vertical feed shaft 414 is located under the seedling mounting table 91.
The part is rotatably mounted on the part, and as shown in FIG.
The vertical feed driven shaft 415 is supported rotatably in parallel,
On the vertical feed shaft 414 and the vertical feed driven shaft 415, respectively.
Two longitudinal feed rollers 194.
Each of the vertical feed rollers 194 and 194
..The front side of is projected from the opening provided in the seedling mounting table 91
Between the upper and lower vertical feed rollers 194
195 is wound. In this manner, the traverse feed shaft 180 is driven.
And the seedling mounting table 91 is slid back and forth to the right or left
At the end, the rotation of the vertical feed cam 193 causes the tip
Comes into contact with the driven cam 413, and the driven cam 413 is turned.
The rotation of the driven cam 413 causes the one-way
The vertical feed shaft 414 is rotated through the
195 is rotated so that the seedling mat is accurately fed vertically downward
You. Then, the vertical feed cam 193 is separated from the driven cam 413.
Then, the driven cam 413 is returned to the original position by the return spring.
I will return. The structure of the vertical feed roller 194 is the same as the conventional one.
Has a complicated outer peripheral shape, and the vertical feed roller 194
The mold for molding is formed around the circumference of the vertical feed roller 194.
Four molds divided into four in the direction were required. Real truth
In the embodiment, as shown in FIGS.
The vertical feed belt 195 is positioned at the right center so that it does not
.. Are spaced at regular intervals
Are arranged in a zigzag pattern, making it easy to produce
I'm working on it. In other words, reduce the number of molds and
The strike is reduced. Further, as shown in FIG.
Left the part where the seedling mat is placed on the seedling mounting table 91 where 13 is located.
An opening 91b is formed in the rib 91a that partitions to the right, and
Usually closed with a lid, but when performing maintenance
Open the lid and lubricate the rotating part with the vertical feed shaft 414.
I am able to do it. In addition, the lower part of the seedling mounting table 91 is shown in FIG.
So that it can slide on the lower rail 95 smoothly.
Three seedling stand shoes 416, 416, 416 are arranged
The seedling stand shoe 416 is conventionally provided as shown in FIG.
Were arranged at equal intervals, but small, especially four-row
Eno rice transplanter can support three even enough
There is also longevity. Therefore, in the present embodiment, the seedling stand shoe 416
Are located in three places: the lower left and right sides and near the center.
ing. A spring for returning the driven cam 413
When the force is large, as shown in FIG.
Move the shoe 416 to the side where the driven cam 413 is located.
When the driven cam 413 returns, the force received when the
The seedling stand shoe 416 on the side receives it. Also,
When there is almost no shock when the spring force returns weakly
As shown in FIG. 58, the center seedling stand shoe 416 is
The vertical feed cam 193 is driven and driven
Center the moment generated by the force received by cam 413
With the seedling stand shoe 416 on the right side. This
By reducing one nursery shoe 416 as shown in FIG.
Even so, we are trying to reduce the weight and cost. [0144] The seedling mounting table 91 is placed on the lower rail 95 right and left.
It is slidably mounted and shown in FIGS. 43, 47 and 59.
Thus, both sides of the lower rail 95 are stays 420
The stay 420 is fixed to the upper side, and the stay 420 is formed in an inverted L-shape in rear view.
Then, the upper surface of the stay 420 is formed in an inverted U-shape.
A hook 421 is fixed, and a guide is
A rod 422 protrudes. On the other hand, the planting transmission
At the front side of the transmission pipes 164 and 165 of the frame 92,
The guide stays 423, 423, which are shaped like a letter, are fixed.
The guide stays 423 are connected to the stays 42.
0 and guide rods 422
I'm trying to be. The base of the seedling collection setting lever 196 is
The fulcrum shaft 424 is fixed to the right side of the fulcrum shaft 424 provided in the left-right direction.
Engagement plates 425 and 425 are on the left and right sides of the point shaft 424 at the rear.
At the end of the engagement plate 425.
The recesses are inserted and engaged with the hooks 421.
The right end of the fulcrum shaft 424 is connected to the cross-shaped pipe joint 16.
7a is pivotally supported by a bracket 426 fixed to the left end.
The support plate 174 is pivotally supported. However, fulcrum shaft
The left end of 424 has a bracket 4 on the cross-shaped pipe joint 167b.
It is also possible to fix and support 26. And seedlings
The upper portion of the setting lever 196 is the lever guide 178.
And is projected forward and upward. Next, the configuration of the seedling mounting table 91 will be described.
You. FIG. 60 is a bottom view of the seedling mounting table, and FIG. 61 is a side view of the seedling mounting table.
Fig. 62 is a front view of the seedling mat holder, and Fig. 63 is a seedling mat.
FIG. 64 is a side view of the support member, FIG.
Is a bottom view of the seedling mat press formed integrally with all the strips, and FIG.
Fig. 67 shows the installation of the conventional seedling mat retainer.
FIG. As described above, the seedling mounting table 91 is
0 is connected to the front of the slider holder 191 that reciprocates right and left.
The seedling mounting table 9 is rotated by the rotation of the transverse feed shaft 180.
1 is mounted to reciprocate left and right. And this implementation
The seedling mounting table 91 in the example is a four-row planting. The seedling table
91 is mounted so that it becomes low after front height,
Seedling mat retainer 250 formed by pipe on upper side
And a seedling holding rod 251 is mounted. The seedling mat presser 250 and the seedling presser bar 25
1 is the width of two stripes in the left-right direction as shown in FIGS.
Lower part of the four-planted seedling table 91
2 pairs of seedling mat holder 250 and seedling holder 251
Configuration. And the seedling mat presser 250
Is an outer frame 2 formed of a substantially U-shaped pipe in plan view.
50a and the left and right sides on the open side of the outer frame 250a.
A defined reinforcing frame 250b is integrally formed,
In addition, a holding frame formed of a substantially L-shaped pipe in side view.
Extend parallel to the seedling feed direction of the
The extending pipe is on the rear side of the seedling mounting table 91 (the seedling mat mounting surface)
When a seedling mat is placed at a fixed interval
To prevent it from slipping or falling. The holding frames 250c, 250c,.
The other end is below the left and right pipes of the outer frame 250a
Attached to the part. The holding frame 250c is
The width of the outer frame 250a in the horizontal direction
In other words, in this embodiment, the outer frame 250
a: 2 to 4 presser frames 250c
・ Attached. Then, the holding frame is viewed from the side.
The lower part of the arms 250c, 250c,.
It is fixed on (or in contact with) the top side of 50b
With a simple structure, sufficient strength
Can be secured. Further, the seedling holding rod 251 is substantially U in plan view.
It is formed by a letter-shaped pipe. Lower side of seedling mounting table 91
A support member at an end in a direction substantially perpendicular to the seedling mounting table 91
The frame support plates 252 are projected as
A frame support plate 252M is also provided on the center rib.
On the left and right sides and the center of the lower end of the seedling mounting table 91.
Have been. Then, it is mounted on the upper portion of the frame support plate 252.
The attachment plate 252a is fixed, and is attached to the upper surface of the attachment plate 252a.
Both ends of the outer frame 250a of the seedling mat presser 250
It is fixed with the clamp 253a, and the seedling holding rod 2
Both sides of 51 are fixed by clamps 253b. Yo
With one support member (clamps 253a and 253b)
Supporting seedling mat presser 250 and seedling presser bar 251
To reduce costs by reducing the number of parts.
ing. In addition, as shown in FIGS.
Is the clamp 253a fixing the presser 250
Is fastened with the fixing screw 254, and the fixing screw 254 is loosened.
By attaching and removing the seedling mat holder 250,
Can be adjusted. The fixing screw
Numeral 254 has an arm portion bent upward,
Operability of attaching and detaching work of seedling mat presser 250 that can be easily rotated
Is excellent. In addition, the outer frame 250a and the reinforcing frame
The stop 250 is attached to each frame on the frame 250b.
The arm 256 is provided with the arm 257 below both sides.
The arm is integrally formed in an L-shape when viewed from the side.
An engaging portion 257a is provided at the tip of
Is rotatably supported on the arm 250b and is detachable.
I have. A hook 256a is attached to the rear end of the
And the hook 256a is attached to the outer frame 250a.
It can be locked. In this way, when the stop is not performed,
Rotates the stopper 256 upward, and the hook 256a
To the outer frame 250a to secure the engagement.
When hooking is performed, release the engagement of the hook 256a.
To rotate downward about the engagement portion 257a and
The seedling mat slides down with the end touching the seedling mounting table 91.
To prevent that. Such a configuration
By doing so, it is possible to
No need for new parts, supporting the seedling mat presser 250
It can be used as a material. The seedling mat presser 250 and the seedling presser
The rods 251 are arranged on one seedling table on the left and right,
As shown in FIG. 65, a set of seedling mat presser 250 and seedling
It is possible to use a presser bar 251. in this case,
Because it becomes longer in the left and right direction, the central part is bent by its weight
In the left and right direction, near the center, approximately L
The support member 255 in the vicinity of the center formed in a letter shape is
1 is fixedly mounted on the central rib. And FIG.
4, the support member 255 projects upward on the short side.
The protruding part is formed in a substantially triangular shape.
Length supporting the reinforcing frame 250b of the mat retainer 250
A groove 255a is formed, and a seedling holding rod 251 is provided at the center thereof.
A long hole 255b for inserting and supporting the hole is formed. In this way, the deflection toward the center in the left-right direction is performed.
Seedling mat presser 250 and seedling presser bar 25 to which the power of Mino is added
1 is supported from below by a support member 255, and has a simple configuration.
It plays a sufficient reinforcing role. Further, the reinforcement
Place the frame 250b in the long groove 250a and
251 is moved to an appropriate position in slot 255b
And fixed by the clamp 253,
Adjust the height of the seedling mat presser 250 and the seedling presser bar 251.
It is possible, and even if it bends to the maximum, the long groove 250a and the long hole 25
It does not come off as regulated by 5b. The seedling mat press 250 and the seedling press
With the construction of the rod 251, the conventional
Compared to the holding structure of the seedling mat
Not only is the number of parts significantly reduced, but also the assembly
It is easy to maintain and easy to maintain. Therefore part
Low production cost due to reduced number of parts and simplified assembly process
A reduction is also realized. Seedling mat holder 250 and
The simple adjustment of the height of the seedling holding rod 251
Since it is realized by the member 255, operability is excellent and
And a plurality of seedling holders 250 and seedling holders 2
51 is an integral structure, so the height of
Sometimes it can be adjusted to the same height, with a simple configuration,
It is possible to hold the seedling mat securely. In this embodiment, the four-row seedlings are used.
Seedling mat presser 250 and seedling presser for two rows against the mounting table 91
Two pairs of fly rods 251 are installed,
In this case, two pairs of articles for Article 3 or two for Article 2
The combination, such as mounting three pairs, is appropriately adjusted. Ma
In addition, as described above, the seedling mat presser
It is also possible to attach a seedling holding rod 251. this
With such a configuration, the seedling mat presser 250 and the seedling
Adjusting the height of the presser bar 251 will be the same at the same time for all sections
Can be adjusted.
The sizing process can be simplified, reducing the weight of rice transplanters
In addition, cost reduction is realized. [0157] Next, an evenness for keeping the planting portion 9 at a constant height.
Flat float center float 97 and side float 98.9
Next, the support structure with the support 9 will be described. 1, 48, 4
As shown at 9, the planting transmission, which is the power transmission unit of the planting unit 9,
A fulcrum shaft 161 is provided at the lower part of
The fulcrum shaft 16 is installed horizontally to fit the width of the
1 is a mounting plate 430/43 having both sides formed in a U-shape.
0 of the mounting plate 430.
The upper ends of the bolts are located below the support plates 174 and 175.
And the fulcrum shaft 161 is attached to the planted transmission frame 92.
It is supported by. The operating arm 1 is located forward of the fulcrum shaft 161.
63 is projected, and is located above the rear end of the operation arm 163.
Toward the planting depth setting lever 79 is provided. Yo
Operator can easily operate the planting depth setting lever 79
And can be easily adjusted. Ma
Each flow below the proper position of the fulcrum shaft 161
The support arms 162 project toward the rear of the
Are provided at the rear of the support arms 162, 162,.
The rear of the float is pivoted. The front part of the center float 97
Above is a sensor to detect the distance between the planting part and the rice field
The link 431 is arranged and supported by the operation arm 163.
ing. The front end of the center float 97 is a mission
Positioned below the rear wheel drive shaft 69 located at the rear end of the case 6
Is placed. To have such an arrangement
The top link 11 of the lifting link mechanism 10 and the lower link
The length of the link 12 is shorter than in the prior art. So
Then, as shown in FIG.
The shape of the portion is the same as the vertical trajectory x of the center float 97.
They have substantially the same shape. With this configuration, the planting section
9 and the front end of the center float 97
Avoid the case 6 and move up and down along the rear part.
And the center float 97 and mission case 6
Is raised and lowered without interference. And
The overall length of the rice transplanter has been shortened, and between the driver's seat 7 and the planting section 9
The distance is shortened and the seedlings can be easily connected. In addition, planting department
9 can be provided in front to improve weight balance
Wear. Next, a support for supporting the planting portion 9 during the planting operation.
The support structure of the id floats 98 and 99 will be described.
FIG. 68 is a side view of the side float support portion, and FIG. 69 is the same.
70 is a plan view, and FIG.
FIG. 71 is a side view of the same. FIGS. 48, 49, 68, and 69
Lower than the right and left sides of the fulcrum shaft 161 at appropriate positions.
To the rear of both side floats 98 and 99
The support arms 162 are protruded. one
On the rear upper surface of the side floats 98 and 99,
A support plate 270 bent in a substantially L shape is attached.
Have been. The side plate 270a of the support plate 270 is viewed from the side.
It is formed in a substantially triangular shape, and is supported on the side plate 270a.
A pin hole 270c for inserting the pin 270b is formed.
Have been. And, it protrudes rearward and downward from the support shaft 161.
The supporting arm 162 has a substantially inverted U-shaped cross section when viewed from the front.
It is shaped like a U-shaped tip that opens downward.
The support plate 270 is fitted from above the side plate 270a,
It is rotatably supported by a support pin 270b. In this embodiment, the size of each of the left and right
Each of the floats 98 and 99 has two support arms 1
It is supported by 62. And in FIG. 69 respectively
Support pin for pivotally supporting the left support arm 162
A coil spring 271 is wound around the outer periphery of the coil 270b.
The hook 271a at one end of the lub spring 271 is connected to the left support.
The coil spring 2
The other end of 71 extends above the bottom surface of the support plate 270,
Press the top surface of the float to
The front of the door is raised and biased to keep it level.
You. However, the coil spring 271 may be an elastic body.
Limited as long as it is urged horizontally by a leaf spring or rubber
It does not do. Further, the support lower surface of the support arm 162 is supported.
The portion in contact with the upper surface of the plate 270 is, as shown in FIG.
Behind the pivot position by the support pin 270b and obliquely backward
Cut upward to form the lower stopper surface 162a,
It is diagonally forward and upward forward from below the pivot position of the support pin 270b.
To form a raised stopper surface 162b. This
As shown in FIG.
2a and 162b, the coil spring 2
Upper and lower sides of the side floats 98 and 99 by the elastic force of 71
When the planting part 9 is lifted while absorbing the shaking of the direction
And lowering when passing over uneven tillage during planting
Side float 98/99 by topper surface 162a
May rotate more than the specified angle and damage other members.
And the amount of rotation is regulated. Also, side flow
Side float 98 during leveling work with
・ 99 Even if the front part is suddenly lifted,
The amount of rotation is regulated by the par surface 162b,
There is no interference with the material. The planting depth is higher than the fulcrum shaft 161.
The setting lever 79 is protruded, and the tip is
79 and project rearward of the driver's seat. For this reason,
The operator can easily operate the planting depth setting lever 79,
It can be adjusted easily. And
When the planting depth setting lever 79 is operated, the support arm 1
62 moves up and down around the fulcrum shaft 161,
The distance between the plant and the planting transmission frame 92 is adjusted,
Adjust the depth at which the seedlings cut by the planting nails 93 can be planted.
Can be adjusted. With this configuration, the side float 98
Since it supports 99, the side float 98
In the front part, there is no need for a conventional support member,
Since the space in the front part is opened, a traverse mechanism is arranged.
Planting section 9 and seedling mounting table 91
And the overall length can be shortened. Ma
The space above the side float 99 in front of the fulcrum shaft 161
A seedling table driving case 172 for accommodating the planting transmission mechanism therebetween.
The planting section 9 has a compact configuration
Was. As a result, the planting section 9 and the seedling mounting table 91 are placed immediately after the rear wheel 3.
It is possible to place it in the rear position,
The length can be shortened and the balance of the front wheel 2 can be improved.
You. And, the conventional installation at the front of the side floats 98 and 99
Since the support members that had been removed can be eliminated,
Points can be reduced, and costs can be reduced. [0167] A drawing marker is provided on both sides of the fulcrum shaft 161.
Cars 272 and 272 are attached. That is, FIG.
As shown in FIG. 71, the drawing marker 272 is
The end is fixed to the marker bracket 273,
The marker bracket 273 is configured in an inverted U shape in side view.
The upper and lower middle portions are pinned by a pin 275 to the fulcrum shaft 161.
Are pivotally supported on both sides of the
You. The lower end of the marker bracket 273 is a first marker.
The first marker is locked to one end of the car biasing spring 276 and
The other end of the biasing spring 276 is a stay fixed to a fulcrum shaft 161.
277 and the tip of the drawing marker 272 is downward.
It is urged to rotate to. The marker bracket
A locking pin 288 is laid on the upper side of the
One end of the pin 288 for raising the drawing marker 272
Wire 278 is connected. The left side of the marker bracket 273
A marker hook 274 is provided on the fulcrum shaft 161 at the center in the right direction.
Is pivotally supported by a pin 279, and the marker
The lower end of the hook 274 is one end of the second marker biasing spring 268
Is locked, and the other end of the second marker biasing spring 268 is
It is locked to the stay 277. The marker hook
A wire 267 for unlocking is engaged in the middle of 274.
And the tip of the marker hook 274 is used as a hook.
The locking pin 288 can be locked. In such a configuration, the planting section 9 is raised.
Then, the wire 278 for pulling is pulled,
The drawing marker 272 is rotated upward and raised.
(Drawing marker 27 indicated by a dashed line in FIG. 70)
2 'and marker bracket 273'). And rise
At the end position, the locking pin 288 of the marker bracket 273 is
Locked by the marker hook 274, the drawing marker 2
72 is held in the raised position. In addition, the drawing marker 27
2 and draw a line on the field,
By pulling the ear 267, the marker hook
274 and the locking pin 288 are disengaged and the marker
The bracket 273 acts on the urging force of the first marker urging spring 276.
Therefore, it is pulled and the drawing marker 272 is turned sideways.
Move. Then, further stop the operation of the wire 267.
And the marker hook 274 is connected to the second marker urging spring 26.
The tip is urged to rotate downward by the biasing force of 8.
And the tip end surface 274a of the marker hook 274 is
Contact 288, thereby drawing the marker 272.
By pushing it downwardly, two urging springs 276
Press the drawing marker 272 at 268, and
272 does not come up,
I really try to draw a line. Next, the configuration of power transmission to the planting section will be described.
You. FIG. 72 is a side view and a diagram showing a power transmission configuration to a planting portion.
73 is a plan view showing a power transmission configuration to the planting portion, and FIG.
FIG. 75 is a plan view showing a configuration for transmitting power to another type of planting part.
Is a plan view showing a configuration for transmitting power to another type of planting portion.
You. As described above, the planting transmission frame of the planting section 9
Through the universal joint part 159
To the PTO shaft 65 that is supported on the transmission case 6 side.
Dynamically connected. Specifically, FIGS. 72 and 73 show
As described above, the PTO shaft 65 is a half-shaped transmission
PTO protrudes from the opening provided in the mating surface of case 6
PTO transmission shaft 158 linked to shaft 65
Along and above it. The PTO transmission shaft 1
Reference numeral 58 denotes a support portion erected on the rear upper portion of the transmission case 6.
It is pivoted on a member 160. Of this mission case 6
The mating surface is the left and right central part of the traveling vehicle 1, and P
The TO shaft 65 and the PTO transmission shaft 158 also
Are located. Then, power is implanted from the PTO shaft 65.
As a configuration for transmitting to the transmission frame 92, a straight line
That the power transmission path becomes shorter when transmitting
More desirably, the center of the left and right of the planting transmission frame 92
The front of the center float 97 warps forward and upward
When the planting section 9 is raised, the center
Since the front of the funnel 97 overlaps the power transmission path,
Power can be input to the left and right central portions of the moving frame 92.
I couldn't do it. Therefore, as described above, the planting transmission frame
The input shaft 185 is supported on the transmission pipe 164 on the right side of the 92.
Power from the side of the center float 97
It has a configuration. This input shaft 185 front and PTO transmission shaft
158 and a universal joint that is arranged in an inclined manner
Interlocking connection using the part 159, the center flow in plan view
, And are arranged so as to bypass the point 97. This universal
The joint part 159 has a universal joint at the front and rear ends.
The PTO transmission shaft 158
The axis of this input shaft 185 is shifted to the right,
Is moved up and down in parallel by the vertical drive of the
Can also transmit power. Therefore, the lifting and lowering of the lifting link mechanism 10 is performed.
The planting portion 9 is moved upward as shown by a two-dot chain line in FIG.
Even if raised, the center float 97 and universal
The planting part 9 is not interfered with the int part 159.
Front side of universal joint part 159 even if it is lowered
Is passed by the side of the rear of the mission case 6,
Interference case 6
And the lifting stroke of the planting section 9 can be lengthened.
You. Further, a lifting link for suspending the planting section 9 so that it can be raised and lowered.
Even if the front and rear length of the mechanism 10 is shortened,
And the overall length of the aircraft can be shortened.
A compact rice transplanter can be realized. A transmission pipe supporting the input shaft 185
164 are arranged in the front-rear direction as shown in FIG.
The PTO transmission shaft 158 and the input shaft 185 are in plan view.
It is parallel. Further, as shown in FIG.
A transmission pipe 164 is disposed parallel to the transmission shaft 158.
The PTO transmission shaft 158 in side view.
The power shaft 185 is parallel to the PTO transmission shaft 158.
From the power to the universal joint 159,
From the universal joint 159 to the input shaft 185
The power transmission is equal, and the power is transmitted to the input shaft 185.
The transmission case does not fluctuate
In step 6, the power changed between the stocks is transmitted accurately. Accordingly
Planting performance without adversely affecting planting drive
It is kept high. Further, as shown in FIG.
At the center of the center float 97
A recess 97a is formed, and the PTO transmission shaft 158
Universal joint part 159 'protrudes linearly toward
To transmit power to the left and right central portions of the planting transmission frame 92
It can also be configured to be. In this configuration,
Even if the planting section 9 is raised using the link mechanism 10,
The middle part of the versal joint part 159 'is inside the concave part 97a.
, It is interfered by the center float 97
It is possible to configure a power transmission path without any problem. What
In this case, place it in front of the center float 97.
The sensor link 431 to the left and right
Can interfere with the universal joint 159 '
Need not be. Also, as shown in FIG.
The vehicle 6 'to the left or right from the left or right center of the traveling vehicle 1.
And above the mating surface of the transmission case 6 '
A certain PTO transmission shaft 158 is positioned in front of the center float 97.
And a straight line behind the PTO transmission shaft 158.
A universal joint part 159 "is projected
Bypassing the warped portion of the funnel 97 and planting power transmission
The power can be transmitted to the inside of the arm 92.
In this case as well, even if the planting section 9 is raised,
97 and the universal joint 159 "interfere
And the power transmission path can be shortened
You. In any case, the rice transplanter of this embodiment is
Power transmission in support structures such as wheels and in the transmission case
Configuration is simple and the configuration of the whole running vehicle is also simple
, Which makes assembly work easy and reduces rigidity.
As it is lighter and smaller,
It is inexpensive and can be manufactured at low cost. Soshi
Also, various levers are centrally arranged according to their functions, which makes operation difficult.
A rice transplanter that is always long and highly safe can be realized. [0179] According to the present invention, the planting portion is provided at the rear of the traveling vehicle.
Is mounted so that it can move up and down, and moves from the input shaft of the planting section to the planting claw.
The planting transmission frame that transmits force is configured as a portal in plan view.
Along with this, the planting transmission frame is formed in a rear view portal shape.
Since the seedling support frame is fixed integrally, the planting transmission
Fixed dimensions between the frame and the seedling support frame
Accuracy can be improved, rigidity can be increased, and weight can be reduced.
You. [0180] Further, the seedling mounting table supporting frame formed in the gate shape is used.
Guide on the planting depth setting lever
And a guide for the seedling collection setting lever are installed.
Planting a support member for attaching these guides
There is no need to install it on the case or planting transmission frame side.
Since it is provided integrally with the mounting table support frame,
And can contribute to cost reduction. [0181]Also, the hook hole 94c is formed.
High strength is not required on the upper side of the hitch 94
Therefore, a cutout hole 94d is provided in the front wall, and the cutout hole 94d is provided in front of the hitch 94.
It is easy to check the inside of the hitch 94 from the
In addition to being able to reduce the weight
It is a thing.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic side view of a small riding rice transplanter. FIG. 2 is a schematic plan view of the same. FIG. 3 is an overall plan view when a spare seedling mounting table is mounted facing the inside of the machine body. FIG. 4 is an overall perspective view of the small riding rice transplanter when the spare seedling mounting table on the right side in the traveling direction is attached so as to face the inside of the body. FIG. 5 is a schematic side view of a vehicle body frame and a transmission case. FIG. 6 is a schematic plan view of the same. FIG. 7 is a perspective view showing a state where a hood is removed. FIG. 8 is a perspective view of a state where a bonnet and a fuel tank are disassembled. FIG. 9 is a side view of the front part of the rice transplanter. FIG. 10 is a plan view of a vehicle body cover and a vehicle body frame. FIG. 11 is a plan view of a rear cover. FIG. 12 is a plan view of a front cover. FIG. 13 is a perspective view of a non-slip member. FIG. 14 is a front view of the same. FIG. 15 is a side view of an engine and an engine cover. FIG. 16 is a partially enlarged plan view of the vehicle body frame in the same plan view, partly in section. FIG. 17 is a schematic perspective view showing a positional relationship between a steering handle and various operation levers. FIG. 18 is a schematic plan view showing various operation levers and an oil meter as viewed from a driver's seat over a steering handle. FIG. 19 is a schematic plan view showing various operation levers and an oil meter as viewed from a driver's seat over a steering handle. FIG. 20 is a schematic side view of a fuel tank provided with an oil meter. FIG. 21 is a schematic side view of a fuel tank provided with an oil meter. FIG. 22 is a schematic perspective view showing a steering handle provided with a linear portion in a part of the outer periphery. FIG. 23 is a schematic side view of a lifting link mechanism portion. FIG. 24 is a right side view, partly in section, of a transmission case. FIG. 25 is a sectional plan view of a transmission case. FIG. 26 is a planar development sectional view showing a transmission gear configuration at the front of the transmission case. FIG. 27 is a left side view of the transmission case. FIG. 28 is a developed plane sectional view showing another example of transmission of the transmission of the transmission case. FIG. 29 is a side sectional view showing another embodiment of the lower portion of the transmission case. FIG. 30 is an overall side view of a rice transplanter having another embodiment of a lower portion of a transmission case. FIG. 31 is a plan cross-sectional view showing a structure for attaching and detaching a cover for inter-gear shifting at the front side of the transmission case. FIG. 32 is a partial front sectional view showing a differential mechanism at a lower front part of a transmission case. FIG. 33 is a side view showing the configuration of an oil supply pipe arranged at the front of the transmission case. FIG. 34 is a side view showing a power connection / disconnection operation configuration for a transmission case. FIG. 35 is a plan view, partly in section, showing the configuration of a power connecting / disconnecting operation for a transmission case. FIG. 36 is a side view of a transmission case showing a conventional brake rod arrangement. FIG. 37 is a side view of a lower portion of the steering shaft. FIG. 38 is a plan view showing an interlocking configuration between a steering operation and a differential lock mechanism. 39 is a plan sectional view of the planting transmission frame 92. FIG. FIG. 40 is a side view, partly in section, of a connecting member. FIG. 41 is a side view of the hitch. FIG. 42 is a rear view of the same. FIG. 43 is a side view of a hitch portion at a lower part of a seedling mounting table. FIG. 44 is a perspective view of a hitch. FIG. 45 is a view as seen from the back surface of the seedling mounting table. FIG. 46 is a side view of the seedling mounting table. FIG. 47 is a plan view of a seedling table support frame. FIG. 48 is a plan view of the float support. FIG. 49 is a side view of the same. FIG. 50 is a rear cross-sectional view of the drive case. FIG. 51 is a view showing a connected body portion on the back side of the seedling mounting table. FIG. 52 is a view showing a conventional connector. FIG. 53 is a perspective view of a connector. FIG. 54 is a left side view of the front part of the planting frame. FIG. 55 is a front sectional view of a vertical feed roller. FIG. 56 is a side view of a vertical feed roller. FIG. 57 is a schematic view of a seedling mounting table in which a seedling table shoe is arranged to the left side. FIG. 58 is a schematic view of a seedling mounting table in which a seedling mounting shoe is arranged on the right side. FIG. 59 is a perspective view of a vertical adjustment portion of the seedling mounting table. FIG. 60 is a bottom view of the seedling mounting table. FIG. 61 is a side view of a seedling mounting table. FIG. 62 is a front view of a seedling mat presser. FIG. 63 is an exploded perspective view of a seedling mat retainer. FIG. 64 is a side view of the support member. FIG. 65 is a bottom view of the seedling mat press formed integrally with all the strips. FIG. 66 is a mounting diagram of a conventional seedling mat press. FIG. 67 is a mounting view of a conventional streak. FIG. 68 is a side view of the side float support. FIG. 69 is a plan view of the same. FIG. 70 is a plan view of a drawing marker mounting portion on a fulcrum shaft side; FIG. 71 is a side view of the same. FIG. 72 is a side view showing a configuration for transmitting power to the planting section. FIG. 73 is a plan view showing a configuration for transmitting power to the planting section. FIG. 74 is a plan view showing a configuration for transmitting power to another type of planting section. FIG. 75 is a plan view showing a configuration for transmitting power to another type of planting section. FIG. 76 is a front view of a spare seedling mounting table which can be attached to the inside of the machine body. FIG. 77 is a perspective view of a state where a bonnet and a fuel tank of another embodiment are disassembled. [Description of Signs] 9 Planting part 79 Planting depth adjustment lever 92 Planting transmission frame 93 Planting claws 178/179 Lever guide 190 Seedling support frame 196 Seedling setting lever

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-16008 (JP, A) JP-A 62-99914 (JP, U) JP-A 60-121721 (JP, U) JP-A 59-1984 36916 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A01C 11/02

Claims (1)

(57) [Claims 1] The planting section 9 can be raised and lowered at the rear of the traveling vehicle 1.
To the planting claw 93 from the input shaft of the planting section 9.
The planting transmission frame 92 to be transmitted is formed in a portal shape in plan view.
At the same time, the planting transmission frame 92 has a rear view portal shape.
The constructed seedling support frame 190 is integrally fixed,
The horizontal frame 19 constituting the seedling support frame 190
0a, the planting depth adjusting lever 79 is tilted forward and downward.
A bar guide 179 is protruded, and a horizontal frame 190a is also provided.
Lever of the seedling collection setting lever 196 inclined forward and downward
A guide 178 is protrudingly provided in front of the planting transmission frame 92.
The hitch 94 connected to the traveling vehicle 1 is
And provided on the hitch 94 by a pivot shaft 176.
A riding rice transplanter characterized in that a cutout hole 94d is provided in the front wall on the side of the section .