JP3525914B2 - Riding rice transplanter - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a riding rice transplanter in which a body cover having a floor is covered on a vehicle body. 2. Description of the Related Art Conventionally, as shown in Japanese Patent Application Laid-Open No. 60-34106, there is a riding rice transplanter in which a body cover having a floor is covered on a vehicle body. In some cases, steps were provided on both the left and right sides lower than the upper surface of the floor. [0003] The above conventional example is
The upper part of the front of the left and right rear wheels is exposed in plan view, so when traveling in a paddy field, mud jumps up to the upper surface of the body cover, and a large amount of mud adheres to the upper surface of the floor of the body cover, Would slip and become dangerous when moving on the floor of the fuselage cover during work. [0004] In general, a riding rice transplanter is provided with a high vehicle height for traveling in a soft paddy field. Therefore, the floor upper surface is provided at a high position of the vehicle body, and it is difficult to get on and off the vehicle. Therefore, as in the above-described conventional technique, another step lower than the upper surface of the floor is provided on both left and right sides of the vehicle body to facilitate getting on and off. [0005] However, since the steps protrude to the left and right sides of the vehicle body, when performing maintenance of the center part of the vehicle body while standing on the side of the vehicle body, the steps hinder the body from approaching the vehicle body and work is performed. There was a difficult side. Accordingly, the present invention relates to a riding rice transplanter,
The task is to make the work as easy as possible when performing maintenance at the center of the vehicle body while standing on the side of the vehicle body, while performing the work safely and providing easy steps for getting on and off the vehicle. It is another object of the present invention to provide a small, compact, and simple structure of a body cover. [0007] The present invention SUMMARY OF THE INVENTION To solve the above problems, covered with a body cover 40 having a floor 41 to the vehicle body, a seedling placing stand 91 which is inclined to the front,該苗the platform 91
Planting rod 9 for removing the above seedlings one by one and planting them in the field
Rice transplanting device 3 including the components 2 and floats 95, 96, 96
Is mounted on the rear side of the vehicle body via a link device 80 so that it can be moved up and down.
In the mounted rice transplanter, the body cover 40 is attached to the front cover.
-40a and the rear cover 40b.
Notch of body cover 40 for arranging pedals 50, ...
The parts 53 and 54 are divided into a front cover 40a and a rear cover 40b.
And the front cover 40a is attached to the rear cover 40b.
And the rear cover 43
And the left and right sides from the front of the cockpit 52 in plane view of the fuselage
Of the passenger floor 41 leading to the rear cover 40b
The body cover 40 is provided with a front cover portion 42 and a rear cover portion 43 that protrude from the floor 41, and is provided on the front cover portion 42.
The steering wheel 13b is provided on the
A cockpit 52 is provided above the vehicle body 3, and the body cover 40 is configured such that the rear end thereof is wider than the front end in the plane of the body in the left and right direction, and the rear left and right side portions 41 a of the body cover 40 are the left and right rear wheels 16. , 16 located above the front and rear
A cover lower than the upper surface of the floor 41 is provided on both left and right sides of the cover 40b.
Step 44 between the front wheel 12 and the rear wheel 16 in the side view of the fuselage.
In addition, the floors located on the left and right sides of the cockpit 52 in plan view of the fuselage.
Step 41 is formed on the outside of the part 41
Of the front connecting portion and the rear wheel 16 substantially along the outer circumference of the front wheel 12
A step surface is supported by a rear connecting portion substantially along the outer periphery, the rear connecting portion is formed on the left and right sides of the rear cover portion 43, and the front connecting portion is formed by an operation pedal 50,.
Are formed on the rear side of the cutouts 53 and 54 of the body cover 40 for disposing the same. Accordingly, the body cover 40 is connected to the front cover 40.
a and a rear cover 40b.
40a is made smaller in plan view than the rear cover 40b.
And control the entire rear cover 43 and the aircraft in plan view.
The passenger floor 41 from the front of the seat 52 to the left and right sides
Because it is formed on the rear cover 40b,
The front cover 40a can be easily attached and detached from the side.
Various transmission components are located at the front of the fuselage
However, the repair is easy, and efficient repair work is performed.
In comparison with the case where the cover that covers the fuselage is formed integrally,
Handling of covers 40a and 40b due to front and rear split configuration
But easy to work, and good workability during production and maintenance
No. Moreover, before the cover 40 rises from the floor 41
Since the cover portion 42 and the rear cover portion 43 are provided, the cover
The strength of -40 is improved. The rear end of the body cover 40 is wider than the front end of the body cover 40 in plan view, and the rear left and right sides 41a of the body cover 40 are connected to the left and right rear wheels 16,
16 so that the front end of the body cover 40 is narrower in the left and right direction, and the rear end left and right sides 41 of the body cover 40 are narrower in order to improve the turning performance of the body in the ridge.
a, 41a are located above the front portions of the left and right rear wheels 16, 16 to prevent the left and right rear wheels 16, 16 from jumping up the mud on the floor 41 of the body cover 40, and the mud adheres to the floor 41. Less and workers can safely go to floor 4.
The workability is good because it can move on the top. In addition, the rear cover 40b has a
Steps 44 lower than the upper surface of the front wheel 41
Between the rear wheel 16 and the cockpit 52 in plan view of the fuselage.
Formed outside the floor 41 located on the left and right sides
Step 44 is substantially applied to the outer periphery of the front wheel 12 in a side view of the fuselage.
Along the front connection and the rear connection substantially along the outer circumference of the rear wheel 16
Since the step surface is supported by the steps (1) and (2), it is possible to obtain the fuselage cover 40 having steps 44, 44 lower than the upper surface of the floor 41 on both left and right sides with a compact and compact structure. , 44 and front and back
The cockpit 52 is placed at the position where it overlaps in the
While the configuration is shortened, the operator can use the body cover 4
0 This step 4 which is lower than the upper surface of the floor 41 on both sides
Floors 41 located on the left and right sides of cockpit 52,
Using the part , getting on and off between the side of the fuselage and the cockpit 52
Easy to perform and good workability. In addition, the front connecting portion 44a and
The foot touches the front wheel 12 and the rear wheel 16 by the rear connecting portion 44b.
You can get on and off safely without getting in and out. Further, the rear connecting portion is formed on the left and right sides of the rear cover portion 43, and the front connecting portion is formed on the rear side of the notches 53 and 54 of the body cover 40 for disposing the operation pedals 50,. Therefore, the rear connecting portion is formed at a position where the strength of the body cover 40 is high, and the front connecting portion is formed at a position deviating from the position where the strength of the body cover 40 is low, so that the step surface of the step 44 can be firmly supported. In addition, since the body cover 40 is provided with the front cover portion 42 and the rear cover portion 43 that protrude from the floor 41, the strength of the cover 40 is improved. As described above, the front cover 40 is provided from the front side of the fuselage.
a can be easily attached and detached, and placed at the front of the fuselage.
Repair of various transmission components is easy and efficient
When repair work can be performed and the cover that covers the aircraft is integrally formed
The front and rear cover is divided into two parts so that the covers 40a and 40
b is easy to handle, during production and maintenance
Good workability. Moreover, the cover 40 is from the floor 41
The raised front cover portion 42 and the rear cover portion 43 are provided.
Thus, the strength of the cover 40 is improved. Furthermore, while the body cover 40 is formed with a small, compact and simple structure, the work can be performed safely, the getting on and off can be easily performed, and the maintenance of the center portion of the vehicle body can be easily performed. Further, the user can get on and off the floor 41 smoothly via the step surface, and the step surface of the step 44 is firmly supported, so that the user can get on and off the vehicle safely. Also, since the step 44 is firmly supported, the step 44 can be used to supply seedlings to the rice planting machine 3 from the vehicle body side.
In addition, since the strength of the body cover 40 is improved, the work can be safely performed on the step 44 or the floor 41. FIG. 1 to FIG. 8 show an embodiment of the present invention, in which a working machine part 3 for planting rice is attached to a rear part of a power farming machine 2 and used as a riding rice planting machine 1. It represents the state to do. The power agricultural machine 2 has a transmission case 5 and a differential case 9 integrated with the transmission case 5 at the front of the body, and has left and right front axle cases 10 and 10 from both sides of the differential case.
10 protrudes outwardly, and has a front wheel support case 1 at its end.
The left and right front wheels 12, 12 are pivotally supported at the lower end of the front wheel support case. A steering case 13 is provided at the front of the mission case 5, and a steering wheel 13b is attached to an upper end of a steering shaft 13a protruding upward therefrom. A front end of a main frame 7 extending rearward is fixedly connected to a rear surface of the differential case 9, and a rear case 14 is provided at a rear end of the main frame. Chain cases 15, 1 are provided at both left and right ends of the rear case.
5 are attached rearward, and the right and left rear wheels 1
6 and 16 are respectively supported. The rear case 14 is located substantially in the middle between the front wheel 12 and the rear wheel 16 in a side view, and an engine base 19 is horizontally mounted on the rear case.
An engine 20 is mounted thereon. The output shaft 22 of the engine projects forward,
The extension shaft 23 is provided forwardly above the transmission case 5. As shown in FIGS. 3 and 4, below the extension shaft 23, a transmission input shaft 24 protruding forward from the transmission case 5 and a counter shaft 25 having substantially the same height as the input shaft are provided. Extension shaft 23
Is transmitted to the transmission input shaft 24 via the counter shaft 25 via a belt. That is, in the belt type transmission A, one belt 27 is stretched between the pulley 23a of the extension shaft and the pulley 25a of the counter shaft, and the pulley 25a of the counter shaft and the pulley 24a of the transmission input shaft are stretched.
The two belts 28 and 29 are stretched between them.
The transmission mechanism from the counter shaft 25 to the transmission input shaft 24 is configured as a subtransmission / belt clutch, and a tensioned pulley 30 tensions one of the belts (28, 29) to perform a low-speed or high-speed transmission. The state can be switched to the state of disengagement in which both clutches are loosened to stop transmission by loosening both clutches. The power input from the transmission input shaft 24 to the mission case 5 is taken out as a traveling system output and a working system output. The running system output is divided into a front wheel drive output and a rear wheel drive output by a differential case 9, and the front wheel drive output is transmitted to the front wheels 12 via transmission means in the front axle case 10 and the front wheel support case 11, and the rear wheel drive output Is transmitted to the rear case 14 via the rear wheel transmission shaft 32 and transmitted to the rear wheel 16 via transmission means in the rear case and the chain case 15. On the other hand, the working system output is transmitted to the rear end of the machine body via the working unit transmission shaft 33, from which the PT
The information is transmitted to the work area 3 via the O-axis 34. The body cover 40 to be put on the chassis configured as described above is a flat passenger floor 41.
And a front cover part 42 protruding from the floor and covering the upper part of the front end of the fuselage, and an engine cover part 43 covering the upper part of the engine 20 and the like. Steps 44, 44 for getting on and off the vehicle one step lower than the floor are formed on both left and right sides. A steering post 46 containing the steering shaft 13a is installed upward from the front cover portion 42, and the steering post cover 4
7 are provided. At the upper end of the steering post cover 47, the steering wheel 13b, an operation panel 48 to which various operation levers and meters are attached,
A headlight 49 and the like are provided. Operating pedals 50,... Are provided at the lower left and right feet slightly behind the steering post 46. These steering wheel 13b, operation panel 48, operation pedal 50,
, And the cockpit 5 on the engine cover 43.
2 are installed. A notch 43a for accommodating a link device 80 to be described later is formed at a rear portion of the engine cover 43, and rear ends 41a, 41a of the floor are provided at the rear wheels 16,
It is formed in a slanted shape avoiding 16. As shown in FIG. 5, the body cover 40 is separated back and forth along a division plane XX. The division surface XX connects the front cover portion 42 in the vicinity of the steering post 46 to the front and rear, and the surface that passes right above the front wheel axle and divides the left and right sides of the floor 41 back and forth. It is composed of front and rear surfaces. Therefore,
The front cover 40a has a substantially concave shape in plan view, and can be easily removed from the body by moving the front cover forward with the fixing bolts and the like removed. 53, 54 in the figure
Are notches for disposing the operation pedals 50,... The front cover 40a is supported on weights 56, 56 for adjusting the weight balance provided on both sides of the front end of the fuselage, and mounted on a horizontal front stay 57 fixed to the front axle cases 10, 10. Have been. The rear cover 40b is provided with the front stay 57, the rear case 1
Central stays 59, 59 erected from a horizontal frame 58 protruding from the side of the fourth case 4, and left and right chain cases 15, 15
And supported on the rear stays 60, 60 erected from the horizontal frames 58, 58.
Steps 44, 44 are supported at both ends. That is, the rear end of the front cover 40a and the front end of the rear cover 40b are supported by the front stay 57, which is a common support member. Therefore, there is no step between the two members in the mounted state, and a common structure is used for the supporting member, thereby providing a simple structure with a small number of parts. Moreover,
The front stay 57 is a front cover 4 near the notches 53 and 54.
0a and the front end of the rear cover 40b are supported, so that the notches 53 and 54 are divided into front and rear portions, but work is performed on the edges of the notches 53 and 54. When a person comes on, the part flexes greatly and slips the foot, or the part flexes and the foot is hooked on a step, and the edges of the notches 53 and 54 flex too much. It is difficult for that part to be damaged. Further, the front stay 57 is also used as a member for determining a stop position in response to a return of an operation pedal such as a foot brake. The structure of the support portion of the rear cover 40b by the rear stay 60 is such that a pin 63 for connecting the stay and the body cover is fixed by a leaf spring type patch lock 62 as shown in FIG. It can be fixed to the fuselage. The riding rice transplanter 1 has a body cover 40 detachably mounted on the vehicle body and floors 41 on both left and right sides of a rear cover 40b of the body cover 40.
Steps 44, 44 lower than the upper surface of the rear cover 40b are formed on the left and right sides of the rear cover 40b when getting on and off.
When the maintenance of the center portion of the vehicle body is performed while standing on the side of the vehicle body, the rear cover 40b is removed to perform the work. 44
Is removed, so that the steps do not become a hindrance when bringing the body closer to the vehicle body. The steering post cover 47 is also divided into a front portion 47a and a rear portion 47b near the center in the front-rear direction. The rear portion 47b is fixedly provided on the rear cover 40b, while the front portion 47a is detachably attached to the rear portion 47b. The structure of the mounting part is
As shown in FIG. 6, a plurality of bolt receivers 65 are provided along the edge of the rear portion 47b, and a U-shaped notch 6 is formed in the edge of the front portion 47a corresponding to the bolt receiver.
Are formed, and the two parts are integrated by tightening the bolt 67 to the bolt receiver 65 in a state where the edges of both parts are overlapped. Therefore, bolt 6
When 7,... Are loosened, the front portion 47a can be pulled out and removed, and the cables and the like housed inside can be easily inspected. Since the operation panel 48 and the headlight 49 are attached to the rear part 47b, they remain as they are even if the front part 47a is removed. The engine 20 of this power agricultural machine is of a start-up type using a recoil motor, and has a knob 72 attached to a tip end of a rope 71 fed from a recoil motor 70.
Is provided on the floor beside the cockpit 52. FIG.
A cylindrical lobe holder 75 and a rope 76 are supported by a frame 74 projecting laterally from the engine base 19, and are fed obliquely downward from the recoil motor 70. The rope 71 is turned upward by the rollers 76, and reaches the floor 41 through the inside of the rope holder 75. Since the rope 71 is biased toward the recoil motor, the knob 72 is always
Is formed at the upper end of the rope holder 75.
Is engaged. An upper portion of the rope holder 75 is integrally provided with a body cover receiving portion 78, and a rear cover 40b is attached to this portion with a bolt. Incidentally, reference numeral 79 in the drawing denotes a vertical slit formed on the outer peripheral portion of the rope holder 75, and the rear cover 4
If the rope 71 is detached from the rope holder 75 through this slit when attaching / detaching 0b, the work is easy. A link device 80 is provided at the rear of the power farm machine 2 to support the farm work machine section 3 and to move up and down as appropriate. In this link device 80, an upper link 82 and a lower link 83 are rotatably supported by a support frame 81 fixed to the machine body, and a connecting frame 85 for mounting a working machine portion is attached to the rear ends of these upper and lower links. Have been. Linking frame 8
A rolling shaft 86 for rotatably supporting the working machine is protruded from a lower end of the work 5. By expanding and contracting a hydraulic cylinder provided between the rear portion of the rear case 14 and the link base 82a of the upper link, the connecting frame 85 is moved up and down while being maintained in a substantially constant posture, and the working machine mounted on the Part 3 is raised and lowered. The working machine part 3 is for rice planting,
A transmission case 90 that is transmitted from the power farm machine via the PTO shaft 34, a seedling mounting table 91 that is provided above the transmission case and is inclined so that the front side is higher, and holds the seedling at the tip. Planting claw 92a, and a planting rod 92 for taking out seedlings on the seedling mounting table 91 one by one while moving up and down while drawing a predetermined trajectory and planting them in a field. On the lower side, a center float 95 and a pair of left and right floats 9 for supporting the machine of the working machine part on the paddy surface.
6, 96 are rotatably mounted up and down. A rod 97 for detecting vertical movement is attached to the front of the center float 95. When the float moves upward, the hydraulic cylinder 87 is extended to lift the working machine portion 3, and when the float moves downward, the hydraulic cylinder The work implement portion 3 is lowered by contracting the work piece 87.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a riding rice transplanter. FIG. 2 is a plan view of the riding rice transplanter. FIG. 3 is a front view of main parts. FIG. 4 is a side view of main parts. FIG. 6 is an explanatory view of a steering post cover. FIG. 7 is a view showing a recoil operation unit, (a) is a front sectional view, (b) is a side view, and (c) is a plan view of a main part. FIG. 8 is an explanatory view of a body cover supporting portion [Description of symbols] 1 ... Riding rice transplanter , 2 ... Power farming machine , 3 ... Working machine part (rice transplanting device) for rice planting, 12 ... Front wheels , 13b ... Steering
Wheel , 16: rear wheel , 40: body cover , 40a: front cover , 40b: rear cover , 41: floor , 41a
... left and right side parts , 42 ... front cover part , 43 ... engine cover part , 44 ... step , 50 ... operation pedal , 52 ...
Cockpit , 53 , 54 ... notch , 80 ... link device , 91
... Seedling stand, 92. Planting rod, 95. Center float, 9
6 ... Float

────────────────────────────────────────────────── (5) References JP-A-63-112911 (JP, A) JP-A-62-38725 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B62D 25/22 B62D 49/00

Claims (1)

(57) Claims: 1. A body cover 40 having a floor 41 is put on a vehicle body , and a seedling mounting table 91 inclined forward is provided.
Planting rod 9 for removing the above seedlings one by one and planting them in the field
Rice transplanting device 3 including the components 2 and floats 95, 96, 96
Is mounted on the rear side of the vehicle body via a link device 80 so that it can be moved up and down.
In the mounted rice transplanter, the body cover 40 is attached to the front cover.
-40a and the rear cover 40b.
Notch of body cover 40 for arranging pedals 50, ...
The parts 53 and 54 are divided into a front cover 40a and a rear cover 40b.
And the front cover 40a is attached to the rear cover 40b.
And the rear cover portion 43
And the left and right sides from the front of the cockpit 52 in plane view of the fuselage
Of the passenger floor 41 leading to the rear cover 40b
The body cover 40 is provided with a front cover portion 42 and a rear cover portion 43 that protrude from the floor 41, and is provided on the front cover portion 42.
The steering wheel 13b is provided on the
A cockpit 52 is provided above the vehicle body 3, and the body cover 40 is configured such that the rear end thereof is wider than the front end in the plane of the body in the left and right direction, and the rear left and right side portions 41 a of the body cover 40 are the left and right rear wheels 16. , 16 located above the front and rear
A cover lower than the upper surface of the floor 41 is provided on both left and right sides of the cover 40b.
Step 44 between the front wheel 12 and the rear wheel 16 in the side view of the fuselage.
In addition, the floors located on the left and right sides of the cockpit 52 in plan view of the fuselage.
Step 41 is formed on the outside of the part 41
Of the front connecting portion and the rear wheel 16 substantially along the outer circumference of the front wheel 12
A step surface is supported by a rear connecting portion substantially along the outer periphery, the rear connecting portion is formed on the left and right sides of the rear cover portion 43, and the front connecting portion is formed by an operation pedal 50,.
Characterized in that it is formed on the rear side of the notches 53 and 54 of the machine body cover 40 for disposing the same.