JPH04299905A - Sulky rice transplanter - Google Patents

Abstract

PURPOSE:To equip a sulky rice transplanter with preliminary seedling placing stands while maintaining longitudinal balance of machine body well and securing visibility of row matching markers. CONSTITUTION:In a sulky rice transplanter equipped with a rice transplanting working machine 2 at the rear side of a traveling body 1 having a seat 9, the rice transplanter is provided with row matching markers 41 before the seat 9 at both left and right sides of a traveling body 1 to transplant seedlings and to travel the rice transplanter at given intervals between the rice transplanter and transplanted seedlings at the side thereof and a ridge and preliminary seedling placing stands 42, 42 equipped with seedling stands 42a... positioned and laid at the front side of the traveling body 1 are installed at the top of supporting frames 43 upright set from both left and right sides of the seat 9.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a riding type rice transplanter.

0002

[Prior Art] Conventionally, in a riding type rice transplanter equipped with a seedling planting machine on the rear side of a traveling vehicle body in which a seat is provided, a predetermined distance between already planted seedlings or ridges on the side of the rice transplanter is provided. Row alignment markers for planting at intervals are arranged on both left and right sides of the vehicle body in front of the seat, and preliminary seedling stands are placed in front of, to the side, or behind the seat on both left and right sides of the vehicle body. There was a riding rice transplanter installed in the area.

0003

[Problem to be Solved by the Invention] In a riding type rice transplanter in which row alignment markers are arranged on the front side on both the left and right sides as in the prior art, the spare seedling mounting stands arranged on both the left and right sides are placed in front of the seat in the front and back direction. When placed, the weight of multiple seedlings on the stand can be used in place of a balance weight.
This has the advantage of reducing the weight of the entire aircraft. On the other hand, if the operator sitting in the seat uses the row alignment marker to check whether the aircraft is traveling at the desired distance to adjacent planted seedlings or ridges, the row alignment marker may be used as a backup. The disadvantage is that it is difficult to see because it is obstructed by the support frame of the seedling stand. Therefore,
If the spare seedling platform is shifted from the front position to the rear, the row alignment markers will be easier to see, but this is not desirable in terms of the front-rear balance of the rice transplanter, and to improve this, the machine becomes heavier.

[0004] As described above, the problem is how to arrange a spare seedling stand that satisfies both the visibility of the row alignment marker, the front-rear balance of the rice transplanter, and the weight reduction of the machine.

[0005]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a riding type rice transplanter in which a seedling planting machine 2 is attached to the rear side of a traveling vehicle body 1 in which a seat 9 is arranged. ,
Row alignment markers 41, 41 are attached to both left and right sides of the traveling vehicle body 1 in front of the seat 9 so that the rice transplanter travels to plant at predetermined intervals with the already planted seedlings or ridges on the side thereof. The riding type vehicle is characterized in that spare seedling stands 42, 42 are provided on top of support frames 43, 43 erected from both left and right sides of the vehicle body 9, with seedling stands 42a mounted on the front side of the traveling vehicle body 1. It was used as a rice transplanter.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, the riding rice transplanter has a configuration in which a seedling transplanting machine 2 is attached to the rear of a riding vehicle body 1 via a link 22. The specific configuration will be explained below based on the reference numerals.

[0007] 3 is an engine, and the front wheel 4 in the longitudinal direction
, 4 and the rear wheels 5, 5, on a single frame 7a fixed from the rear end of the transmission case 6 toward the rear. Reference numeral 8a denotes a step floor, which is integrally formed with an engine cover 8b that covers the upper side of the engine 3. A seat 9 is arranged on the engine cover 8b.

The output shaft 3a of the engine 3 is directed to the left, and the rotational power of the output shaft 3a is transmitted forward via a belt transmission mechanism 10 to a hydraulic pump 11 fixed to the transmission case 6. to drive. Power is transmitted further forward from the drive shaft 11a of the hydraulic pump 11 via an auxiliary transmission device 12, which is a belt transmission mechanism capable of variable speed transmission, and rotational power is input to the input shaft 6a on the front side of the mission case 6. The power transmitted to mission case 6 is
Travel and transmitted to the work equipment system.

The sub-transmission device 12 has two pulleys with the same diameter attached to the drive shaft 11a of the hydraulic pump 11, and two pulleys with a large diameter and a small diameter attached to the input shaft 6a of the transmission case 6. A mechanism on which a belt is hung and applies tension to selectively bring the belt (for low-speed transmission) that transmits power to the pulley 12a on the large diameter side and the belt (for high-speed transmission) that transmits power to the pulley 12b on the small diameter side into a belt transmission state. It becomes. This makes it possible to selectively transmit the reduction ratio in two stages, low speed and high speed. Further, the outer side surface of this sub-transmission device 12 is covered with a cover 12.
' is covered.

The front wheels 4, 4 are mounted on a lower case 14b of front wheel transmission cases 14a, 14b which are arranged vertically downward on both left and right sides of the rear of the transmission case 6 via extensions 13, 13. There is. Power is transmitted to the front wheels 4, 4 by inputting power into the transmission case 6, which is further decelerated within the transmission, and then transmitted to the extension case 13 and the front wheel transmission cases 14a, 14a, 14 via the differential device.
It is transmitted to the left and right front wheels 4, 4 through the transmission mechanism in b, 14b. Further, the front wheels 4, 4 serve as steering wheels, and the steering operation of the handle 15 is transmitted through the steering shaft 15a.
Lower cases 14b, 1 are rotatable with respect to upper front wheel transmission case 14a via arms 16 and rods 17, 17.
4b, so that the front wheels 4, 4 are steered and rotated in response to rotation of the handle 15.

The rear wheels 5, 5 are rear wheels at the left and right ends of a rear wheel frame 19 that are rotatably attached to a rolling shaft 18 that is fixed toward the rear at the center of the horizontal frame 7b at the rear end of the frame 7a. The shaft is mounted on gear cases 20, 20. Therefore, the rear wheels 5, 5 are configured to be able to roll around the rolling shaft 18. Power is transmitted to the rear wheels 5, 5 after the power inside the mission case 6 is projected rearward from two places on the left and right at the rear end of the mission case 6 via a rear wheel differential device inside the transmission. Wheel drive shaft 21
, 21, and the drive shafts 21, 21 and the input shafts 20a, 20a of the rear wheel gear cases 20, 20 are connected by a universal joint,
Rear wheel transmission shafts 22, 22 equipped with expansion joints are connected to transmit power to the rear wheels 5, 5.

Reference numeral 23 denotes a hydraulic cylinder, the base side of the cylinder is pivotally supported by a bracket fixed to the frame 7a below the engine 3, and the tip of the piston rod is connected to a link 24 connecting the traveling vehicle body 1 and the working machine 2. Upper link 24a
It is connected to an arm 25 integral with the. Hydraulic cylinder 2
As oil flows into and out of the cylinder 3, the piston rod protrudes and retires, the link 24 moves up and down with the traveling vehicle body 1 as a rotational fulcrum, and the working machine moves up and down.

In the link 24, an upper link 24a and a lower link 24b are connected as a link rotation fulcrum to a link base 24c on the traveling vehicle body side, which is fixed to the horizontal frame 7b on the traveling vehicle body 1 side. Work machine side link base 24 that pivots machine 2 so that it can roll left and right.
d are connected. 25 is a work machine transmission shaft, which is a PTO projecting from the right side of the mission case 6 toward the rear.
The rotational power of the shaft is transmitted to the drive shaft of the working machine 2 via a universal joint and an expansion joint.

Reference numeral 26 denotes a seedling stand, which is supported in an inclined manner so that the front side is on the upper side and the rear side is on the lower side. The lower side of the seedling platform 26 is slidable from side to side by engaging an L-shaped seedling receiving rail 27a fixed to the planting section transmission case 27 with a sliding member attached to the lower back side of the seedling platform 26. Possibly supported. On the upper side of the seedling stand 26 are rollers attached to the upper end of a seedling stand support frame 27b whose bases are attached to both left and right sides of the planting section transmission case 26. It is supported so that it can be slid from side to side by engaging with a rail fixed to the side. The seedling platform 26 is connected to a moving shaft that reciprocates left and right by the transmission in the transmission case 27 through a connecting member 27c, so that the seedling platform 26 can reciprocate left and right. As a result, the seedlings placed on the seedling stand 26 are supplied one by one to the planting devices 29 in accordance with the planting cycle.

Reference numeral 28 denotes a seedling vertical feeding device, which is attached to each row of the seedling platform 26 and rotates by transmission from the planting section transmission case 27 when the seedling platform 26 moves to both left and right ends. A large number of protrusions 28d are provided on the roller 28a and the driven roller 28b.
A rubber seedling feeding belt 28c provided on the surface is hung, and the belt 28c is arranged so as to slightly protrude from a rectangular hole drilled in each row of the seedling table 26. . In addition, the seedling feeding belt 28c... is connected to the seedling table 26.
It is also configured so that it can be retracted downward from the seedling surface. That is, as shown in FIG. 4, the upper driven roller 28b
The supporting shaft 28e of the seedling feeding attachment member 28 is supported by a T-shaped swinging arm 28g which is rotatably supported by the shaft 28f.
It is designed to be able to swing within the range of the elongated hole 28i. A spring 28j is applied to the other end of the swing arm 28g, and the driven roller 28b is biased toward the seedling stand 26. Further, the other end of the swing arm 28g is connected to a clutch pedal 35 provided on the vehicle body 1 side via a wire 28k. Therefore, when the clutch pedal 35 is depressed to disengage the main clutch, the swinging arm 28g swings via the wire 28k, so that the driven roller 28b moves away from the seedling stand 26. The seedling feeding belt 28 moves accordingly.
c is configured to move in such a manner that it is retracted downward from the seedling mounting surface of the seedling mounting table 26. Release the pedal and press pedal 3
5 returns, the retracted seedling feeding belt 28c returns to its original position by the spring 28j. As a result, when the clutch pedal 35 is depressed during the planting operation and the main clutch is held in a disengaged state by the locking mechanism of the pedal 35 to supply seedlings to the seedling platform 26, the seedling feeding belt 28c Since the seedlings are retracted below the seedling mounting surface, when the supplied seedlings slide down the seedling mounting surface, they are not caught by the seedling feeding belt 28c, and the seedlings can be replenished properly. When the seedling supply is completed and the clutch pedal 35 is unlocked and the pedal returns to its original position in order to start the planting operation again, the seedling feeding belt 28c is returned to its original position in conjunction with the clutch pedal 35. . Therefore, even if the vertical seedling feeding device is switched to the seedling feeding state as described above in order to supply seedlings, the work can be restarted without forgetting to return it. The same effect can be obtained even if this mechanism is linked to a lever operated when replenishing seedlings, such as a vertical seedling feeding device and a main clutch lever of a walking rice transplanter.

[0016] The planting device 29... is a planting part transmission case 26.
Two planting transmission frames 27a and 27b extending rearward from the left and right end sides of the plant are attached to the rear sides of the two planting transmission frames 27a and 27b, respectively, so that four planting rows in total are attached. The planting device 28 for each row includes a planting transmission frame 27a,
The power of the transmission case 27 is transmitted via a chain transmission mechanism within the transmission case 27b. Further, the planting device 29 includes a rotating case 30 and two planting tools 31, 31 attached to the rotating case 30. These two planting tools 31, 31 are provided with planting claws 31a, 31a, respectively, and the tips of the planting claws 31a, 31a move in an elliptical trajectory by the rotational transmission of the gear train in the case as the rotating case 30 rotates. The seedlings are taken one by one and planted in the field in accordance with the supply of seedlings on the seedling table 26.

32a, 32b and 32c are respectively on the left side,
The center and right leveling floats are suspended from the lower sides of the planting transmission frames 27a and 27b, respectively, and slide while leveling the muddy surface of the planting field. Reference numeral 33 denotes an operation panel, which is disposed below the handle 15, and the lower side of the panel 33 is covered with a panel cover.

A steering post 34 supports the steering shaft 12. The vicinity of the outer periphery of the post 34 is covered with a post cover 34a, and the width of the cover 34a from left to right and front to back is narrower than the outer diameter of the handle 15. 35 is a clutch pedal, and when the pedal 35a is depressed, the main clutch is disengaged. That is, in this embodiment, both the low-speed and high-speed tension rollers of the sub-transmission device 12 are released from the belt tension state, and transmission into the transmission case 6 is interrupted. The clutch pedal 35 is also provided with a pedal lock mechanism that holds the main clutch in a disengaged state, that is, in a depressed state with the pedal 35a. That is, when the pedal 35a is fully depressed, the hook 35b moves to the vicinity of the locking member 35c. Therefore, when the pedal 35a is rotated downward around the rotation axis 35d and released, the hook 35b is released from the locking member 3.
5c, the clutch pedal 35 is held in the clutch disengaged state.

Reference numerals 36a and 36b are left and right brake pedals for the rear wheels, respectively, and 37 is a differential lock pedal. 38 is a main shift lever. Reference numeral 39 is an auxiliary transmission, hydraulic pressure, and planting lever, and one lever is configured to operate three cams that respectively operate the auxiliary transmission, hydraulic valve, and planting clutch. This lever 39 has six lever positions P1 to P6 as shown in FIG. 5, and the operation at each lever position is as shown in FIG.
The seedling planting machine 2 rises at position P1, fixes its vertical movement at P2, and descends at P3. Between P1 and P3, the planting clutch is in a disengaged state. Then, the planting clutch is engaged at P4 and P5, and disengaged again at P6. The operation of the sub-shift is from P1 to
The speed is changed to low speed up to P4 and high speed at P5 and P6. Next to the lever position P5 for high-speed planting travel, there is a lever position P6 that allows high-speed travel by disengaging the planting clutch.
Efficiency of movement within the field is improved. In addition, levers P5 and P6
If the position is not held by the operator, it will be pulled back to the low speed planting lever position P4 by the return spring 39a. This prevents the machine from suddenly running at high speed when planting begins.

40 is a battery. 41, 41 are row alignment markers. Stays 41a, 41a are horizontally rotatably attached to the front, right and left sides of the traveling vehicle body 1, and marker mounting rods 41b, 41b hang down from the tips of the stays 41a, 41a so as to be adjustable in left and right and up and down positions. The row alignment markers 41, 41, which are spherical members, are fixed to the lower ends of the marker attachment rods 41b, 41b. The longitudinal position of the row alignment markers 41, 41 with respect to the aircraft is determined by the operator sitting in the seat 9.
It is placed as far forward as possible so that the aircraft can be operated without difficulty while checking 1 and 41.

Now, when traveling for planting work in a paddy field, the row alignment marker 41 is positioned above the already planted row or ridge adjacent to the running path, and the machine is aligned horizontally. When running, the seedling transplanting machine 2 connected to the rear side plants seedlings at predetermined row intervals. By adjusting the left and right positions of the connection of the marker attachment rods 41b, 41b to the stays 41a, 41a, seedlings can be planted at desired row spacing. In addition, when the markers 41, 41 come into contact with planted seedlings or ridges, the marker attachment rods 41b, 41b
This can be done by adjusting the vertical position of the connection to the stays 41a, 41a.

Reference numeral 42 denotes a spare seedling stand, which is attached to the upper part of support frames 43, 43 erected from both the left and right sides of the seat 9, with the stand 42 positioned in front of the seat 9. The support frames 43, 43 have their bases fixed to the left and right side surfaces of the frame 7a, and extend left and right from there until slightly outward from the left and right ends of the step 8a in plan view, and extend slightly diagonally. Rising higher than before,
Further, near both left and right sides of the operation panel 33, it is bent horizontally toward the front. From the horizontal part of the seedling frame mounting member 43a
, 43a are erected, and a seedling stand 42a is installed on the outside of the mounting member.
... are installed horizontally, two on each side. Since the seedling stand 42a... is attached to such support frames 43, 43, when the operator sitting in seat 9 checks the markers 41, 41, the support frames 43, 43 do not obstruct the operator. become,
The driver can easily see the markers 41, 41 directly in a normal driving position.

[0023] The seedling stand 42a... is a seedling frame mounting member 43a.
, 43a (not shown), so by rotating both the left and right ends of the seedling frame 42a downward, space can be saved when the rice transplanter is in stock. be able to. 44 is a lifting step.

[0024]

As described above, the seedling stand 42a is mounted on the upper part of the support frames 43, 43 erected from both the left and right sides of the seat 9.
... are positioned and attached to the front side of the traveling vehicle body 1, and the preliminary seedling mounting stands 42, 42 are provided, so that the operator seated on the seat 9 can easily see the row alignment marker 41 from the adjacent already planted seedlings or It is possible to visually check whether the seedlings are located at desired positions with respect to the ridges without being obstructed by the support frames 43, 43 of the preliminary seedling mounting stands 42, 42. Moreover,
Since the preliminary seedling mounting tables 42, 42, on which a plurality of seedlings are placed and which bear a heavy load, are disposed at the front side of the rice transplanter, the front and back balance of the rice transplanter is very good.

[Brief explanation of the drawing]

[Fig. 1] Side view showing a riding-type rice transplanter according to an embodiment

[Fig. 2] Plan view showing the riding-type rice transplanter of the embodiment

[Fig. 3] Front view showing the riding-type rice transplanter of the embodiment

[Figure 4] Side view showing the interlocking configuration of the vertical seedling feeding device

[Fig. 5] Side view showing the operating state of the operating lever

[Fig. 6] Explanatory diagram showing operation switching using the operating lever

[Explanation of symbols] 1: Traveling vehicle body 2: Seedling planting machine 9: Seat 41: Row alignment marker 42: Spare seedling stand 42a: Seedling stand 43, 43: Support frame

Claims (1)

[Claims] Claim 1: A riding type rice transplanter in which a seedling planting machine 2 is attached to the rear side of a traveling vehicle body 1 in which a seat 9 is arranged, in which the rice transplanter is attached to already planted seedlings or a ridge on the side thereof. Row alignment markers 41, 41 for planting at predetermined intervals are attached to the seat 9.
The seat 9 is attached to both left and right sides of the traveling vehicle body 1 in front of the seat 9.
A riding-type rice transplanter characterized in that preliminary seedling stands 42, 42 are provided on top of support frames 43, 43 erected from both left and right sides of the vehicle body 1, with seedling stands 42a mounted on the front side of the traveling vehicle body 1. Machine.