JPH0468192B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a riding rice transplanter equipped with a planting section at the rear of a traveling machine body.

``Prior Art'' Conventionally, as shown in Japanese Utility Model Application No. 54-135418, there has been a technique in which a bonnet is formed in sections and attached detachably.

``Problems to be Solved by the Invention'' However, in the prior art, when the top surface of the vehicle body is covered with a cover, the cover tends to hit the handle etc. when attaching and detaching, and it is difficult to simplify the shape and mounting structure of the cover and explain how to install it. There were problems such as the inability to easily improve workability.

"Means for Solving the Problems" However, the present invention provides a riding rice transplanter in which the upper surface side of the vehicle body on which the driver's seat, handle, etc. are installed is covered with a cover, and the above-mentioned features are provided at the front and rear of the vehicle with the handle as the border. In addition to attaching each cover separately and removably,
The present invention is characterized in that the cover is formed so that it can be divided and separated at the lever or pedal.

"Function" Therefore, even if the cover extends in the longitudinal and lateral directions of the steering wheel, the front or rear part of the cover can be easily opened and closed while avoiding the steering wheel, and the front or rear part of the upper surface of the vehicle body can be opened and closed easily. One or both of the covers can be opened and closed as necessary, and the shape and mounting structure of the cover can be simplified and the installation workability can be improved compared to the past. Moreover, after the lever or pedal is attached, the The cover can be attached and the operating stroke or switching timing of the lever or pedal can be easily adjusted, and the cover can be attached and removed with the lever or pedal attached, making it easy to inspect and maintain the vehicle body. It can be done.

``Example'' An example of the present invention will be described in detail below based on the drawings. Figure 1 is an overall side view of the riding rice transplanter, Figure 2 is an overall plan view, Figure 3 is a partial side view, and Figure 4 is a partial front view. The engine 2 is mounted on a base frame 3, and the engine 2 is covered with a bonnet 4, which is a vehicle body cover.A transmission case 5 is mounted on the rear end of the base frame 3, and a transmission case 5 is installed behind the transmission case 5. A transmission case 6 is integrally connected to both the left and right sides of the end. The left and right front wheels for running in paddy fields are supported on both sides of the front left and right sides of the transmission case 5 via axle frames 7, and the left and right rear wheels 9 for running in paddy fields are respectively supported on the outside of the rear part of each transmission case 6, and the work is carried out. A driver's seat 10 for a person to sit on is attached to the upper part of a transmission case 6 via a connecting frame 11. In addition, there are preliminary loading tables 12 on both left and right sides of the bonnet 4.
In addition, a steering handle 13 is provided in front of the driver's seat 10 at the rear of the bonnet 4, and the engine 2, transmission case 5, front and rear wheels 8, 9, etc. are controlled by the vehicle body cover 14 forming the step 14a and the bonnet 4. Covers the upper area.

In addition, 15 in the figure is a planting section equipped with a seedling stand 16 for multi-row planting, a plurality of planting claws 17, etc.
8 and the planting case 20 via the guide rail 19
The planting claw 17 is attached to the planting case 20 via a planting arm 21 that is supported so as to be slidable in left and right reciprocating motion and is moved by a crank, and a planting claw drive shaft 22. As shown in FIGS. 5 to 7, below the planting case 20, a main float 23 for leveling the planting surface, which is a sliding body, and left and right side floats 24, 24 are installed with a swing link 25 and a buffer. In addition to being supported via a link 26, a link hitch 27 is provided on the front side of the planting case 20, and this link hit 27 is connected to the connecting frame 11 via a three-point link mechanism 30 including a top link 28 and a lower link 29. A hydraulic cylinder 31 for raising and lowering the planting part 15 is interposed between the rear part of the transmission case 5 and the fixing plate 32 of the top link 28, and the planting part 15 is raised and lowered by the expansion and contraction of the hydraulic cylinder 31. While raising and lowering as appropriate, the planting section 1
When traveling with the robot 5 lowered, one seedling is continuously taken out by a planting claw 17 from a seedling platform 16 that slides back and forth from side to side, and the seedling planting work is carried out in the field. .

Furthermore, the main shift lever 38 is interlocked with the shift lever 33 connected to the main shift operating gear in the transmission case 5 via the shift rod 34, shift arm 35, longitudinal swing fulcrum shaft 36, and left/right swing fulcrum 37. By connecting the main shift lever 38 back and forth along the guide groove 39 formed in the left rear fender 14b at the rear of the vehicle body cover 14, the main shift lever 38 can be adjusted to suit on-road speed, neutral speed, planting speed, or reverse speed. It is configured to change the driving mode. In the figure, 43 and 44 are left and right side latch pedals, and 45 is a main clutch pedal.

As shown in FIGS. 8 to 9, a bearing cylinder 40 is fixed to the vertical frame 11a of the vehicle body frame 11.
The planting lift lever 46 is supported via the operation rotation shaft 41 and the left-right swing fulcrum shaft 42, and the operation piece 48 is attached to the rotation shaft 41 to make contact with the spool of the hydraulic valve 47 that operates the hydraulic cylinder 31 to expand and contract. The other end of the planting clutch wire 49 which is integrally fixed and connected to the planting clutch is attached to the clutch arm 5.
0 to the rotating shaft 41, and the lifting lever 46 is moved back and forth along the lever guide groove 51 to swing the planting part 15 up and down and the planting clutch is turned on and off. It is composed of Further, the elevating lever 46 is formed so that it can be swung left and right in the front swing operation position, and when the elevating lever 46 is swung left and right, the lever 46 is engaged with the horizontal swinging link 52. The left and right streak markers 54 are configured to be swung by the wires 53 so as to appropriately project to the outside of the fuselage body. Further, an interlocking plate 55 is fixed to the left end of the rotating shaft 41, and an interlocking pin 58 is supported in the middle of the speed change lever 38 via a bracket 56 and a compression spring 57.
8 from the forward position to the reverse position, the tip of the interlocking pin 58 is engaged with the interlocking plate 55, and the operating piece 48a is integrally rotated via the rotating shaft 41 to operate the valve 47. Planting section 15
It is configured to raise the Furthermore,
Another operating piece 59 for operating the valve 47
is freely rotatably supported on the rotating shaft 41, and the operating piece 59
and the main float 23 are interlocked and connected by a sensor wire 60, and the valve 47 is appropriately operated as the ground pressure of the float 23 changes, so that the ground pressure of these floats 23 and 24 is maintained approximately constant. The planting section 15 is configured to be automatically controlled.

On the other hand, a sensitivity adjustment lever 62 is provided at the rear of the planting lift lever 46 via an operating rotation shaft 61, and a spring 63 and a locking piece 64 are connected to the operating piece 59, and between the wires 60. By connecting the adjustment lever 62 via the sensor wire adjustment arm 65 and swinging the adjustment lever 62 along this lever guide groove 66 formed in the right rear fender 14b. It is configured to adjust the sensitivity of the load applied to the float according to hard/soft topsoil (dry fields/wet fields) and standards, and to adjust the standard value of planting depth.

As shown in FIG. 9, the handle 13 is supported by a steering gear box 68 via a handle shaft case 67, and the gear box 68 is fixed to the front part of the transmission case 5 and protrudes below the gear box 68. steering shaft 69
the axle frame 7 via the steering link 70
It is connected to.

The handle shaft 71 of the handle 13 and the steering shaft 6
9 refers to two sets of reduction gears 7 in the gearbox 68.
2, 73 and 74, 75 are also decelerated in two stages to increase their steering forces. Further, a fuel tank 77 of the engine 2 is provided to be supported by the shaft case 67 via an attachment and fixing member 76.

As shown in FIG. 10, the axle frame 7
is fixedly supported on both left and right sides of the transmission case 5 via an axle case 78 and a transmission case 79, and the output from the engine 2 is transmitted to a differential 80, a front output shaft 81, bevel gears 82, 83, a transmission shaft 84, and bevel gears 85, 86. The signal is transmitted to the axle 87 of the front wheel 8 via the .

As shown in FIGS. 11 to 15, the rear wheel 9 has bosses 88 and spokes 8 attached to the rear axle, which will be described later.
9 and a rim 91 having a large number of large and small lugs 90a and 90b.
By making the shape of the lug 90b larger on the inside and outside, the end face A of the largest portion D of the lug 90b is provided so as to be substantially horizontal with the ground, and the ground width of the lug 90b is increased. It is configured to improve the stability of the rear wheels 9 during running.

FIG. 16 shows a drive system diagram, in which the output shaft 2a of the engine 2 is connected to the input shaft 93 of the transmission case via a belt transmission mechanism 92,
The input shaft 93 is connected to a counter shaft 94 and a transmission gear 95.
The transmission shaft 9 is connected to the transmission shaft 96 through a side clutch shaft 99 having left and right side clutches 97 and a multi-disc brake 98.
6 is connected to the rear output shaft 100 of the transmission case 5, and the output shaft 100 is interlocked and connected to the rear wheel 101 of the rear wheel 9 via the chain transmission mechanism 102, thereby transmitting the output from the engine 2 to the rear wheel. 9. Further, the speed change shaft 96 is interlocked and connected to the output shaft 81 for the front wheels 8 via the differential 80 and the counter shaft 103, so that the front wheels 8 are driven.
Furthermore, the input shaft 93 has a gear 104 for shifting between stocks,
A planting transmission shaft 106 is interlocked and connected via a counter shaft 94 and a pair of bevel gears 105, and the transmission shaft is connected to a planting input shaft 107 of the planting case 20 via a pair of reduction bevel gears 108, a universal joint 109, etc. 106 are interlocked and connected so that the planting section 15 is also driven by the output of the engine 2.

By the way, as shown in FIGS. 3 and 4, the vehicle body cover 14 is divided into a step 14a, a rear fender 14b, and a front fender 14c, and brackets 110, 111 and bolt 1
The step 14a is removably attached to the transmission case 6 via the connecting frame 11, bracket 113 and bolts 114, and the rear fender 14b is detachably attached to the base frame 3 via the connecting side plate 115 and bolts 116. The front fender 14c is fixedly supported. A step 14a is provided with left and right side clutch pedals 43, 44 as shown in FIG.
and a rear fender 14 that includes a main gear shift lever 38, a planting lift lever 46, and a sensitivity adjustment lever 62.
In case of b, the pedal 4 which is these operation element parts
3, 44 and levers 38, 46, 62 are further divided into left and right parts 117, 118 and 11.
9, 120 are formed so that these steps 14a and rear fender 14b can be disassembled without removing the pedals 43, 44 and levers 38, 46, 62 each time.

As is clear from the above, in the riding rice transplanter, the top side of the vehicle body where the driver's seat 10, handle 13, etc. are installed is covered by the cover 14 forming the step 14a and the fenders 14b, 14c. The cover 14 at the front and back
are attached separately and detachably, and the lever 3
The cover 14 is formed so that it can be divided and separated by the pedals 8, 46, 62 or the pedals 43, 44.

Further, the bonnet 4 is divided into a front side plate 4a, left and right side plates 4b, 4c, and a rear side plate 4d, and these side plates 4a, 4b, 4c, 4d are connected to the side plate 115 and the front fender 14c via a pivot shaft 121. It is configured to be installed so that it can be opened on all sides.

This embodiment is constructed as described above, and the base frame 3, transmission case 5, and transmission case 6 are integrally connected to form the body, so the structure is compact, and the body cover 4,
14 to the bonnet side plates 4a, 4b, 4c, 4d.
It can be divided into a step 14a, a rear fender 14b, and a front fender 14c, and each can be attached and detached separately, and the pedal 11, which is an operating element part,
7, 118 and the protruding cover 14 related to the levers 38, 46, 62, the pedal 11
7, 118 and the levers 38, 46, 62 as boundaries and can be further divided into left and right parts and attached to or removed from the aircraft body, so the pedal 11 can be attached or removed from the aircraft body each time.
It is possible to attach and detach only the necessary portions of the cover 14 without removing the levers 7, 118 and the levers 38, 46, 62, which is extremely convenient for maintenance and inspection. Moreover, the strength of each cover segment cannot be improved by disassembling the vehicle body covers 4 and 14;
If a part is damaged, only partial replacement is required, making it economical and easy to maintain.

``Effects of the Invention'' As is clear from the above embodiments, the present invention provides a riding rice transplanter that covers the top side of the vehicle body on which a driver's seat 10, a handle 13, etc. are installed, with a cover 14. The cover 14 is detachably attached to the front and back of the handle 13, and the cover 14 is formed so that it can be divided and separated at the levers 38, 46, 62 or the pedals 43, 44. Even if the cover 14 is extended in the direction shown in FIG. The shape and mounting structure of the cover 14 can be simplified and the workability of attaching and detaching the cover 14 can be easily improved compared to the conventional one. 4
The cover 14 can be attached after the cover 4 is attached, and the operation stroke or switching timing of the levers 38, 46, 62 or the pedals 43, 44 can be easily adjusted. , 62 or pedals 43, 44
With the cover 14 attached, only the cover 14 is attached and detached,
This allows inspection and maintenance of the vehicle body to be carried out easily.

[Brief explanation of the drawing]

Fig. 1 is an overall side view showing one embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a partially enlarged side view, Fig. 4 is a partially enlarged front view, and Fig. 5 is a three-point link. An enlarged side view of the mechanism part, Fig. 6 is the same plan view, Fig. 7
The figure is an enlarged plan view of the float part, Fig. 8 is an enlarged rear view of the planting lift lever part, Fig. 9 is a side view of the same, Fig. 10 is an explanatory diagram of the steering part, and Fig. 11 is an illustration of the front axle part. 12 is an enlarged explanatory view of the wheel portion, FIG. 13 is a view taken along the - line of the previous figure, FIG. 14 is a view taken along the same line, FIG. 15 is a view taken along the same line, and FIG. 16 is the same line view, No. 17
The figure is an explanatory diagram of the drive system. 10... Driver's seat, 13... Steering wheel, 14...
Cover, 38, 46, 62... Lever, 43, 4
4...Pedal.

Claims (1)

[Claims] 1. In a riding rice transplanter in which the upper side of the vehicle body where the driver's seat 10, handle 13, etc. are installed is covered with a cover 14, the cover 14 is detachably attached to the front and rear sides of the handle 13, and Lever 38, 46, 62 or pedal 4
The cover 1 can be freely divided and separated at 3 and 44.
A riding rice transplanter characterized by forming 4.