JP2705685B2 - Riding rice transplanter with fertilizer application - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission case in which a transmission case is disposed at a front portion of a riding type traveling vehicle body, and a seedling planting device is mounted at a rear portion of the riding type traveling vehicle body. The present invention relates to a riding type rice transplanter with a fertilizer application device, wherein a fertilizer feeding device of a fertilizer application device is attached to a rear portion of the riding type traveling vehicle body in front of the seedling transplanting device, the power being transmitted to a seedling transplanting device behind the vehicle body. .

[0002]

2. Description of the Related Art Conventionally, in a riding type rice transplanter equipped with a fertilizer application device, the fertilizer application device is driven in conjunction with the rice transplanter device so that the fertilizer application operation is performed simultaneously with the rice transplantation operation. As shown in Japanese Utility Model Laid-Open No. 56-153128, power is taken out from the rice transplanting device side and transmitted to the fertilizer application device.

Therefore, in a riding type rice transplanter with a fertilizer application device in which a fertilizer feeding device is disposed at the rear of a traveling vehicle body,
Conventionally, as shown in Japanese Utility Model Laid-Open No. 58-59410, power is first transmitted from a traveling vehicle body in front of the fuselage to a rice transplanting device in the rear of the fuselage, and then the power is branched off from the drive shaft of the planting device in the rice transplanting device. Again, power was transmitted to the fertilizer feeding device located forward of the rice transplanting device.

However, in the above-mentioned conventional configuration, the fertilizer application device is driven in conjunction with the rice planting device so that the fertilizing operation is performed simultaneously with the rice transplanting operation. However, the power transmission path to the fertilizer feeding device is long. As a result, a large driving torque is required, and the power transmission to the fertilizer feeding device is complicated.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, a transmission case 15 is arranged at the front of a riding type vehicle body 12 according to the present invention. In a riding type rice transplanter having a structure in which a seedling plant 8 is attached to the rear of the vehicle and power is transmitted from the transmission case 15 at the front of the vehicle body to the seedling plant 8 at the rear of the vehicle,
The fertilizer feeding device 53 of the fertilizer application device 52 is attached to the rear side of the riding type traveling vehicle body 12 on the front side, and the transmission case 15
A power transmission case 56 for branching the power near the rear of the vehicle body in a power transmission path from the power transmission path to the seedling plant 8, and transmitting the power branched by the transmission case 56 to the fertilizer feeding device 53. This is a riding type rice transplanter with a fertilizer application device.

[0006]

According to the present invention, since the fertilizer application device is driven in conjunction with the rice transplanting device so that the fertilizing operation can be performed simultaneously with the rice transplanting operation, the power transmission path to the fertilizer feeding device can be achieved. And the driving torque can be made smaller than before, and the power transmission to the fertilizer feeding device after branching from the power transmission path to the seedling planting device can be simplified, so that the body can be made compact. .

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A riding type rice transplanter with a fertilizer application according to one embodiment of the present invention will be described in detail with reference to the drawings. Reference numeral 12 denotes a riding type traveling body, which is a left and right frame 13 which constitutes the body 1.
The engine 4 is mounted on the upper surface of the central part 14 in the front-rear direction, and the transmission case 15
6 and the engine 4 and the transmission case 15 are of a so-called direct connection type. Mission case 1
5 is formed by integrally connecting the left and right cases 15a and 15b with bolts 17 to form an L-shape as viewed from the rear. The support pieces 18 and 18 respectively welded to the left and right frames 13 and 14 are bolted with bolts 19. It is fixedly connected. The transmission case 15 includes an engine 4
And a front wheel differential mechanism for changing the rotational driving force.

Reference numerals 20 and 20 denote left and right front axle cases, which are fixed to the left and right side portions of the transmission case 15, respectively. Reference numeral 2 denotes a left and right steering drive front wheel, which is fitted to a lower portion of the left and right front axle cases 20 and is turned by a steering handle 21 described later.
22.

Reference numeral 6 denotes a steering transmission case having a transmission gear therein, which is fixed to the front ends of the left and right frames 13 and 14, and a handle post 23 is fixed to an upper portion thereof, and an upper end of the handle post 23 is provided. The section is provided with a steering handle 21. A link 24 as a steering transmission mechanism having a rear end connected to the left and right steering cases 22 is provided at a lower portion of the steering transmission case 6, and when the steering handle 21 is turned, the steering transmission case is turned on. Left and right steering case 22.
2 is configured to rotate about the vertical axis and to change the direction of the left and right steering drive front wheels.

Reference numeral 25 denotes a rear wheel drive case, which is fixed to the rear ends of the left and right frames 13 and 14, and left and right drive rear wheels 3.3 are mounted on left and right sides thereof. 2
Reference numeral 6 denotes a transmission shaft for transmitting power from the transmission case 15 to the rear wheel drive case 25. And the rear wheel drive case 2
The left and right side clutches and left and right side brakes for the left and right driven rear wheels 3 and 3 are incorporated in a transmission mechanism inside the left and right wheels, and a left and right clutch pedal provided in a front portion of a step 27 provided in front of the engine 4. The left and right side clutches are disengaged and the left and right side brakes are operated by depressing operations 28 and 29. That is, the driving rear wheel 3 on the side where the left and right clutch pedals 28 and 29 are depressed is operated.
・ The drive of 3 is stopped and the brake works.

Reference numeral 30 denotes a body cover formed by FRP. An engine cover portion for covering the periphery of the engine 4 and a step 27 provided on the front and left and right sides of the engine 4 are integrally formed. 13 and 14 are fixed. Reference numeral 5 denotes a control seat, and a vehicle body cover 30
It is mounted on the top. Reference numeral 10 denotes a spare seedling mounting table formed of a low plate and four side walls in a box shape having a small depth and having an inner surface serving as a seedling mounting portion 11. Left and right spare seedling frame 3 fixed
The seedling box, in which the seedlings are stored, is fixed to the upper end portions of the two and 32 so that the seedling box in which the seedlings are stored can be mounted on the seedling mounting portion 11 therein.

Reference numeral 7 denotes a link mechanism comprising an upper link 7a and a lower link 7b. The base ends of the upper link 7a and the lower link 7b are connected to support frames 33, 33 fixed to the left and right frames 13, 14. The rear end portion is pivotally connected to a vertical frame 38 provided with a rolling shaft 37 for supporting the seedling plant 8 in a freely rotatable manner.

Reference numeral 41 denotes a hydraulic cylinder device. The base of the cylinder is pivotally attached to the rear side of the transmission case 15, and the rear end of the piston is pivotally attached to a swing arm 7c integral with the upper link 7a. Reference numeral 42 denotes a front cover formed of a synthetic resin that covers the periphery of the handle post 23, and is fixed to the upper surface of the front end of the step 27. The speed change lever 31 is provided above the front cover 42.

Reference numeral 43 denotes a main clutch pedal provided on the left side of the front cover 42. Reference numeral 4a denotes a fuel tank, which is fixed to upper ends of support frames 33, 33 fixed to the left and right frames 13, 14, and is provided to supply fuel to the engine 4 through a fuel pipe 4b. The seedling plant 8 includes a planting transmission case 44 also serving as a frame rotatably mounted on the rolling shaft 37 of the vertical frame 38, and a lower supporting member 45 and an upper supporting member 46 provided in the planting transmission case 44. A seedling mounting table 47 supported by the robot and reciprocating in the left-right direction of the machine, and a seedling mounted on the rear end of the planting transmission case 44 and divided by one plant from the lower end of the seedling mounting table 47 to be planted in the field. And a center leveling float 50, a right and left leveling float 51, which is a leveling body having a rear portion pivotally supported at a lower portion of the planting transmission case 44 and a front portion thereof slidably up and down. 51 and the like. The right and left terrain floats 51 and 51 are disposed behind the left and right driven rear wheels 3.3, respectively, to level the field disturbed by the left and right driven rear wheels 3.3 and to set seedlings by the seedling planting device 48. Is provided to level the front of the field where the plants are planted.

Numeral 52 denotes a fertilizer application device, which comprises four fertilizer application tanks 9 formed of a transparent resin fixed to the upper ends of the support frames 33 fixed to the left and right frames 13 and 14 of the riding type vehicle body 12. And four fertilizer feeding devices 53 that are integrally attached to the lower part of each of the fertilizing tanks 9 and feed out a certain amount of granular fertilizer in the fertilizing tank 9, and guide the fertilizer fed by the fertilizer feeding device 53. And four fertilizing pipes 54, which are transparent, and a granular fertilizer which is fixed to the center leveling float 50, the left and right leveling floats 51, 51, and digs a fertilizing groove in a field beside the seedling planting position and is guided by the fertilizing pipe 54. And four groove-making devices 55 that guide the falling into the grooves. The fertilizer application pipe 54 is divided into an upper pipe 54a and a lower pipe 54b which is slidably fitted to the upper pipe 54a.
When the seedling plant 8 is moved up and down by the link mechanism 7, the length of the external fertilization pipe 54 is automatically changed, and the length of the fertilization pipe 5 is changed.
The fertilizer pipe 54 is configured to always be linear so that the granular fertilizer can be appropriately guided down the inside of the fertilizer 4. still,
Two fertilizer application tanks 9 are provided on each of the left and right sides of the fuel tank 4a, and a front portion thereof intervenes between the control seat 5 and the spare seedling mounting table 10 in a plan view, and a lower portion in a side view. It is arranged so as to be located at a position lower than the upper end of the seedling mounting portion 11 of the spare seedling mounting table 10. A lid 9a is provided on the top of each fertilizer application tank 9 with its rear part stopped by a metal fitting 9b so that the front part can be opened and closed.

Reference numeral 56 denotes a transmission case fixed to the left and right frames 13 and 14. Power is transmitted from the transmission case 15 via a transmission shaft 57 to the transmission case 56.
Is configured to rotate a rotary arm 58 provided on the side wall. The rotation of the rotary arm 58 is transmitted to a drive arm 60 of the fertilizer feeding device 53 by a rod 59, and the fertilizer feeding device 53 is configured to feed out a certain amount of granular fertilizer in the fertilizer application tank 9. I have.
The rotation arm 58, the rod 59, and the drive arm 60 constitute a fertilizer drive device.

Reference numeral 61 denotes a universal joint 62 at both ends.
A PTO transmission shaft having a transmission case 56
Is transmitted to the planting transmission case 44 of the seedling plant 8. Numeral 63 denotes a hydraulic valve provided between the upper surface of the front part of the central terrain float 50 and the planting transmission case 44. When the front part of the central terrain float 50 is lifted by an external force to an appropriate range or more, a transmission case 63 is provided. The hydraulic oil pumped out of the transmission case 15 is supplied to the hydraulic cylinder 41 by the hydraulic pump 64 mounted on the left side surface of the hydraulic pump 15, the piston is protruded, the link mechanism 7 is moved upward, and the seedling plant 8 is moved to a predetermined position. When the front of the central leveling float 50 falls below an appropriate range, the hydraulic oil in the hydraulic cylinder 41 is returned into the transmission case 15 and the link mechanism 7 is moved downward to move the seedling plant 8 to a predetermined position. Position, and when the front of the central leveling float 50 is within the proper range (when the seedling plant 8 is at the proper predetermined position), the hydraulic cylinder 41 Stop the entry and exit of hydraulic fluid is provided to allowed to hold NaeUe device 8 at a fixed position.

An operation lever 65 is provided on the right side of the control seat 5 so as to protrude from the vehicle body cover 30, and operates a PTO clutch for connecting and disconnecting power to a transmission shaft 57 provided in the transmission case 15. The power supply to the fertilizer application device 52 and the seedling planting device 8 can be turned on and off, and the hydraulic valve 63 can be operated to move the seedling planting device 8 up and down manually. That is, when the operation lever 65 is tilted forward, the PTO clutch is engaged, the fertilizer application device 52 and the seedling plant 8 are driven, and the hydraulic valve 63
Is in an automatic control state in which it is switched by the vertical movement of the center leveling float 50. Conversely, when the operation lever 65 is tilted backward, the PTO clutch is disengaged and the fertilizer application device 52 and the seedling plant 8
Is stopped and the hydraulic valve 63 is forcibly switched to the side in which the seedling plant 8 is raised, and the seedling plant 8 is raised. When the operation lever 65 is set at the middle position of the operation stroke, the PTO clutch is disengaged, the operation of the fertilizer application device 52 and the seedling planting device 8 is stopped, and the hydraulic valve 63 stops the flow of the hydraulic oil in the hydraulic cylinder 41, and The planting device 8 is switched to a position where the planting device 8 is held at a fixed position,
Is held at the position when the operating lever 65 is operated to the intermediate position, and the seedling-planting device 8 does not move up or down.

A recoil starter 66 for starting the engine 4 has a knob 67 provided outside the vehicle body cover 30 and on the right side of the operation lever 65. 68
Are the rear side of the transmission case 15 and the rear wheel drive case 25
And a reinforcing frame provided between the front frame and the front side. 69
Is a differential lock pedal of a front wheel differential mechanism in the transmission system of the front drive wheels 2, 2 and is provided in front of the engine 4.

The machine frame 1 is composed of the left and right frames 13.
It comprises a steering transmission case 6, a transmission case 15, a rear wheel drive case 25, and a reinforcing frame 68 for integrally connecting the right and left frames 13 and 14 together. The riding type rice transplanter configured as described above is put into the paddy field, the seedlings are placed on the seedling mounting table 47, and the nursery box containing the seedlings is placed on the spare seedling mounting tables 10. If the operator pulls the knob 67 to start the engine 4 and tilts the operation lever 65 forward to drive each unit to move the machine forward, the seedling planting apparatus 8 is automatically controlled up and down to an appropriate position to perform rice transplanting. At this time, the fertilizer 52 simultaneously applies the granular fertilizer to the field beside the seedling planting position.

In particular, in this riding type rice transplanter with a fertilizer application device, a transmission case 15 is arranged at the front of the riding type traveling vehicle body 12, and the seedling planting device 8 is mounted at the rear of the riding type traveling vehicle body 12. In a riding type rice transplanter configured to transmit power from the transmission case 15 at the front of the vehicle body to the seedling planting device 8 at the rear of the vehicle body, a fertilizer application device 52 is provided on the rear side of the riding type traveling vehicle body 12 in front of the seedling planting device 8. A transmission case 5 for attaching a fertilizer feeding device 53 and branching power near the rear part of the vehicle body in a power transmission path from the transmission case 15 to the seedling plant 8.
6 is provided, and the power branched by the transmission case 56 is transmitted to the fertilizer feeding device 53. Therefore, the fertilizer application device is driven in conjunction with the rice planting device, so that the fertilizing operation can be performed simultaneously with the rice transplanting operation. However, the power transmission path to the fertilizer feeding device is shortened, so that the driving torque can be made smaller than before, and the power transmission to the fertilizer feeding device after branching from the power transmission path to the seedling planting device is simplified. This makes it possible to make the aircraft compact.

Since the fertilizing tanks 9 are provided at positions lower than the seedling mounting portions 11 of the spare seedling stands 10 provided on the left and right sides of the control seat 5, the spare seedling stands 10 When the seedlings are replenished to the seedling mounting table 47, the fertilizer tanks 9 do not become an obstacle, and the seedling replenishing operation can be performed efficiently.

[Brief description of the drawings]

Fig. 1 Overall side view of a riding rice transplanter with a fertilizer application device

FIG. 2 is an overall plan view of a riding rice transplanter with a fertilizer application device.

FIG. 3 is an enlarged front view of an engine and a transmission case.

[Explanation of symbols]

 8: Seedling plant 9: Fertilizer tank 12: Riding vehicle body 52: Fertilizer device 53: Fertilizer feeding device 56: Transmission case

Claims (1)

(57) [Claims] A mission is provided at a front portion of a riding type traveling vehicle body.
A case 15 is disposed at the rear of the riding type vehicle body 12.
The seedling plant 8 is mounted, and the transmission case at the front of the vehicle body
15 for transmitting power to the seedling plant 8 at the rear of the vehicle body;
Riding type rice transplanter in front of the seedling plant 8
The fertilizer feeding device 5 of the fertilizer application device 52
3 and the seedling plant 8 from the mission case 15
That splits power near the rear of the vehicle in the power transmission path to the vehicle
A case 56 is provided, and the power branched by the transmission case 56 is provided.
A riding type rice transplanter with a fertilizer application device, which is configured to be transmitted to a fertilizer feeding device 53 .