JPH07132003A - Transplanter - Google Patents

Abstract

PURPOSE:To provide the subject transplanter comprising a specific construction, capable of quickly judging whether or not a line-drawer is positioned on the line drown by the previous process without making disturbance of the operation and accordingly enabling efficient transplanting. CONSTITUTION:This transplanter is provided, on the both sides of the transplanter, with line-drawers 52a, 52a of a line-marker apparatus to draw a center line of the traveling path of the next process on the ground during the reciprocal movement in a field while transplanting. The operation mode of the line-drawers 52a, 52a is shiftable among the state to draw the both sides, that to draw only one side and that do not to draw any side. Further, the drawing points of the line-drawers 52a, 52a are positioned in front of the seat 20 of the mobile machine body 2 that is the driving position of the transplanter. Having this construction, if the transplanting is performed skipping the space for one process, it is possible to operate the transplanter while quickly judging whether or not of the line-drawers is positioned on the line drown by the previous process with the operator's face looking forward after the operation mode is shifted to the state to draw the both sides.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanter equipped with a drawing marker device.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication (Kokai) No. Hei 4-75510 is provided with a drawing marker device for drawing the center line of a traveling path of the next stroke to the ground when traveling with reciprocating plants in a field. -In the rice transplanter where the drawing device of the car device is provided on both the left and right sides of the machine body, it is possible to switch between the state where the drawing effector acts on both the left and right sides, the condition where only one left and right sides act on the drawing, and the condition where both the left and right sides do not act on the drawing. The rice transplanter set up in is disclosed. In addition, the rice transplanter was provided so that the drawing action position of the drawing effector was located behind the steering position of the rice transplanter.

[0003]

By the way, a wire drawing marker is used.
Switching the car to the state in which the wire-drawing bodies on both the left and right sides work to draw wire is switched when rice is planted as follows. First, there is a case where rice is planted in a square field so that unplanted areas do not occur in the four corners. That is, first, as shown in FIG. 7, the rice transplanter entering from the field entrance ENT provided at the ridge A1 moves to the ridge A2 on the opposite side. Then, the alignment marker 51 is placed on the edge line.
While maneuvering so as to be located, the planting travels along the ridge A2. At this time, the wire drawing effector on the left and right sides of the ridge A2 is switched to the wire drawing operation state to draw the wire. After the planting traveling from the side of the ridge A3 along the farm road RD until it abuts the ridge A4 opposite to it, turn to the next stroke. In the next process, one planting interval will be used for planting. In this process, the drawing body is switched to the state where both the left and right sides draw.
Line L1 in which one drawing member is drawn in the previous stroke
The other drawing member draws the center line L2 of the next stroke, and the ridge A4 side moves to the ridge A3.
Drive planting to the side. Then, after planting and running until it hits the ridge A3, as shown in FIG. 8, it turns to the stroke on the ridge A1 side, and the center line drawn in the previous stroke is provided at the center poles provided in the left and right centers of the aircraft. Steering is performed so that 53 is positioned, and planting travel is performed from the ridge A3 side toward the ridge A4 side. At this time, the drawing effector on the side of the ridge A1 is switched to the drawing effected state to perform drawing. In this way
When the vehicle travels back and forth with the ridge A1 toward the ridge A1 and the remaining one stroke is reached with the ridge A1, as shown in FIG.
From the T side toward the ridge A2, run along the ridge A3 with headland, and then the lane A that was initially separated by one stroke.
From 3 to ridge A4, planting run, and then from ridge A2 to ridge A1, headland planting run, and finally, the process left for ridge A1 to the entrance ENT. Head towards the ridge A1 and drive along the ridge A1, and exit on the farm road RD from the entrance ENT. At the time of the round planting traveling, the left and right drawing members are switched to the non-drawing operation state, and the alignment marker 51 is steered so as to be located on the edge line or on the adjacent seedlings. According to the above, rice can be efficiently planted so that unplanted areas do not occur in the four corners of the field.

By the way, as described above, when the planting travel is performed with one stroke apart, both the right and left sides of the wire drawing effector are switched to the wire drawing effecting state, and one wire drawing effector is placed on the line drawn in the previous stroke. In the conventional rice transplanter described above, since the wire drawing action position of the wire drawing effector is provided behind the operation position of the rice transplanter in the conventional rice transplanter, the line drawing operation is performed on the line drawn in the previous stroke. When checking whether or not the wire drawing effector is positioned in the vehicle, the operator must look back to the rear side each time, and there is a risk that the operation will be disturbed each time.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a line drawing marker for drawing the center line of the traveling path of the next stroke to the ground when reciprocating and planting in the field. -In a rice transplanter equipped with a device, and the wire drawing effector of the wire drawing marker device is provided on both left and right sides of the machine body, a state in which the wire drawing effector acts on both the left and right sides, and a state where only one side on the left and right sides operates and The rice transplanter is provided so that both sides can be switched to a state in which the wire drawing does not work, and the wire drawing working position of the wire drawing working body is located in front of the steering position of the rice transplanter.

[0006]

According to the operation and effect of the present invention, therefore, when the planting traveling is performed with one stroke left, both the left and right sides of the wire drawing effector are switched to the wire drawing effecting state, and one wire drawing effector is placed on the line drawn in the previous stroke. The rice transplanter of the present invention is steered to be positioned, but since the wire drawing action position of the wire drawing effector is provided on the front side of the operation position of the rice transplanter, it is on the line drawn in the previous stroke. When confirming whether or not the wire drawing effector is positioned, the operator can make a quick confirmation with his face facing the front side, and the confirmation operation does not disturb the control. Therefore, efficient rice planting work can be easily performed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. The riding rice transplanter 1 is configured such that a seedling transplanter 4 is attached to the rear side of the traveling vehicle body 2 via an elevating link device 3 that moves up and down. Reference numeral 5 denotes a side-row fertilizer applicator, which has a horizontally-long and integral hopper portion 5a for storing fertilizer and a fertilizer feeding portion 5b, which is integrally provided in the lateral side in the same number as the number of seedling planting rows, under the seat 20. The fertilizer feeding portions 5b, which are arranged on the rear side on the front side of the seedling placing table 42 and on the rear step portion 21c, and the fertilizer guide portions 5d, which are provided in the vicinity of the row planting points, are connected by the hose 5c. The fertilizer fed by the fertilizer feeding section 5b ... Is conveyed to the fertilization guide section 5d ... by the compressed air flowing in the hoses 5c. The compressed air blown into the hose 5c is generated by the electric blower 5e, and the compressed air from the blower 5e is blown into the horizontally long pipe-shaped air chamber 5f, and the air chamber Compressed air is blown into each of the hoses 5c ... From inside -5f. The air chamber 5f is fixed to the upper ends of the link bases 31 and 31 so as to lie on the left and right, and each fertilizer feeding part 5b.
It also serves as a mounting frame for ... and a supporting frame for the side steps 22 and 22.

The traveling vehicle body 2 includes a pair of left and right steering driving front wheels 6 and 6 and a pair of left and right driving rear wheels 7 and 7.
Is equipped with. Further, the mission 8 is arranged on the front side, and the front wheel axle frame 9 is arranged from the left and right side portions of the mission 8.
.9 is fixed, and front wheel final cases 10.10 are connected to both ends of the frame 9.
Front wheel axles 10a, 10 protruding outward from the lower side of 0, 10
The front wheels 6.6 are attached to a. The power in the mission 8 is transmitted by the power transmission mechanism in the front wheel axle frame 9.9 and the front wheel final case 10.10, and the front wheels 6.6 rotate. Further, the front end of the vehicle body frame 11 is fixed to the rear side of the mission 8. The rear ends of the vehicle body frames 11 and 11 are fixed to the lateral frame 12, and the rear wheel frame is attached to the bearing portion at the center of the lateral frame 12.
A rear wheel rolling shaft 13a fixed to the center of the left and right of the frame 13 with its axial center facing forward and backward is fitted. Rear wheel gear cases 14 and 14 are fixed to the left and right ends of the rear wheel frame 13, and rear wheel axles 14a and 14a project laterally from the outer side of the rear wheel gear cases 14 and 14.・ 7 is attached. Therefore, mission 8 and frame 11.1
1, the body frame composed of the lateral frame 12,
The rear wheel frame 13 to which the rear wheels 7 and 7 are attached can be rolled around the rear wheel rolling shaft 13a. The power in the mission 8 is transferred from the rear side to the left and right rear wheel gear cases 14 and 14 by the rear wheel transmission shafts 14a and 14a.
It is transmitted by a and the rear wheels 7 and 7 are driven and rotated. Incidentally, the rear wheel axles 14a, 14a are provided with the rear wheels 7 and 7, on the left and right outer sides thereof, auxiliary wheels 7'having a diameter slightly smaller than the wheel diameter of the rear wheels 7
7'is attached. The power input to the mission 8 is from the engine E supported on the frames 11 and 11 to the first belt transmission 15 (15a: engine side pulley, 15a ': engine output shaft, 15b: hydraulic pump). The side pulley, 15b ': hydraulic pump drive shaft, 15c: transmission belt) is once transmitted to the hydraulic pump P fixedly mounted on the mission 8, and from there, the input shaft of the mission 8 is continuously variable. Belt transmission 16 (16a: hydraulic pump side split pulley, 16b: mission side split pulley, 16
b ': mission input shaft, 16c: transmission belt. The split pulleys 16a and 16b are arranged such that the auxiliary shift lever 27 adjusts the pulley width in a contradictory manner. ) Is transmitted at high speed and continuously variable speed. Incidentally, an alternator G mounted on the engine E is transmitted from a second output shaft of the engine E by a third belt transmission device 17.

A handle 18 is provided on the front side of the vehicle body, and a control seat 20 is mounted on an engine cover 19 that covers the upper side of the engine E. A lower side of the handle 18 is covered with a post cover 27, and a display panel section for displaying various operating states is provided on an upper portion of the post cover 27. A main shift lever and a rear wheel diff lock lever are arranged on the left side, and an auxiliary shift lever and an accelerator lever are arranged on the right side of the display panel section and its periphery, and switches such as a start switch are also provided. ing. A clutch pedal is provided on the lower rear left side of the post cover 27, and a rear wheel clutch / brake pedal is provided on the right side. The operator normally sits on the control seat 20 and turns the handle 18 to steer the machine, and also operates various levers and pedals to operate the machine.

By rotating the handle 18, the front wheels 6, 6 can be rotated in the front-rear direction. That is, the rotation of the handle 18 is transmitted to the steering arm 18a provided on the front bottom of the mission 8 and further transmitted to the left and right front wheel final cases 10 and 10 via the rods 18b and 18b. The upper case of the front wheel final case 10 is fixed to the front wheel axle frame 9 and is fixed to the vehicle body, and the lower case cannot move up and down with respect to the upper case. It is provided to be rotatable left and right around the vertical axis. The rod 18b.1 is attached to an arm provided integrally with the lower case.
8b is connected. Therefore, if the steering wheel 18 is rotated to the right, the steering arm 18a is rotated to the right, and further, the lower cases of the left and right front wheel final cases 10 and 10 are rotated to the right to rotate the front wheels 6 and 6 to the right. Move. On the contrary, when the handle 18 is rotated to the left, the front wheels 6, 6 are rotated to the left.

As described above, the rear wheels 7 and 7 are mounted on the vehicle body frame.
The rear wheel frame 13 is configured to be rotatable around the rear wheel rolling shaft 13a with respect to the frames 11 and 11. As a result, even when the left and right wheels of the rear wheels 7 and 7 pass locally at locations having different heights, the rear wheel frame 13 is moved by the rear wheel frame 13 according to the change in the left and right ground loads. Ring shaft 13
Since it rolls around a, the left and right wheels of the rear wheels 7 and 7 can always run while maintaining a grounded state.

For leveling the wheel marks of the front wheels 6.6, the rear wheels 7.7, and the auxiliary wheels 7 ', 7', the front wheel marks are center-flowed.
The ground is cleared by 48 to 48, and the trail of the rear wheels disappears.
The ground is leveled by the keys 60 and 60, and the traces of the auxiliary wheels are leveled by the side floats 49 and 49. By the way, the treads of the front wheels 6 and 6 are provided with substantially the same width as the tread of the rear wheels 7 and 7. Seedling transplanter 4
The wheel passing positions with respect to the left and right positions of the seedling planting articles PL1 to PL8 by the planting device 41 of FIG.
7 passes through the line position between the seedling planting lines PL2 and PL3 and the line position between the seedling planting lines PL6 and PL7. The auxiliary wheels 7 ', 7'are attached so as to pass through the row position between the seedling planting sections PL2 and PL3 and the row spacing position between the seedling planting sections PL6 and PL7.

Further, the main body 2 is attached to the traveling vehicle body 2.
1 is provided lower than the seat 20 and covers the upper side of the front wheels 6.6. This step 21 includes left and right step portions 21a.2 on both left and right sides of the seat 20 and the handle 18.
1a and a central step portion 21b connecting the left and right step portions on the front side of the seat 20. Further, on the rear side of the seat 20, a rear step portion 21c having a step surface higher than that of the main step 21 and covering the upper side of the rear wheels 7 and 7 is provided.
However, it is provided across the left and right so as to connect the rear ends of the left and right step portions.

Further, the side steps 22 and 22 are provided on both the left and right outer sides of the left and right step portions 21a and 21a of the main step from the vicinity of the front wheel axle upper position to the rear step portion 21c.
It is provided across the left and right outer positions. The height of the step surface of the side steps 22 and 22 is equal to that of the left and right step portions 21.
The left and right step portions 21a
It is provided at substantially the same height as the step surface of 21a, and the rear portion is raised by one step and is provided at substantially the same height as the step surface of the rear step portion 21c. As for the supporting structure of the side steps 22 and 22, the front end side of the step is the front wheel final case.
The support frames 22a, 22a fixed to the upper portions of the seats 10 and extending horizontally to the left and right above the front wheels are rotatably pivoted about the horizontal axis. -Chamber-5f is supported by being engaged with a step supporting portion fixed to the chamber. Incidentally, boarding steps 23, 23 are fixed to the left and right outer side portions of the side steps 22, 22 and are used when getting on and off the step from the left and right sides of the body.

The lifting link device 3 includes frames 11 and 11.
An upper link 32 and lower links 33, 33 are rotatably attached to a link base 31 fixed to the rear side of the link base 31, and a vertical link 34 is connected to the rear ends of the upper and lower links. Then, a connecting shaft 40a fixed to the transmission case 40 of the seedling planting work machine 4 is rotatably coupled to the bearing portion projecting rearward from the lower end of the vertical link 34, and the seedling planting work machine 4 is attached.
Is rotatably attached to the left and right with respect to the traveling direction. A base side of the hydraulic cylinder 35 is pivotally supported by a supporting member fixed to the frames 11 and 11, and a piston rod side is integrally connected to a base portion of the upper link 31 to a tip end portion of a swing arm 31a extending downward through a spring. There is. Hydraulic cylinder 3
When 5 is expanded / contracted, the lifting link device 3 moves up and down,
The seedling planting work machine 4 can be moved up and down. The hydraulic cylinder 35 is switched and operated by a hydraulic valve 36.

The seedling transplanting machine 4 has a structure of eight-row planting. First, the transmission case 40 is connected to the up-and-down link device 3 so as to be able to roll left and right, and the transmission case 8 of the traveling vehicle body 2 to the first transmission shaft 8a with a plant and the intermediate gear case 8 are connected.
b, it is transmitted via the first planted transmission shaft 8c. The front portions of the planted transmission frames 40a, 40a extending rearward are connected to the left and right side portions of the transmission case 40, and further connected to the left and right outer portions of the front portions of the planted transmission frames 40a, 40a. The front parts of the planted transmission frames 40c, 40c are connected to the left and right via a pipe. 4 planted transmission frames 40a, 40a
・ 40c ・ 40c are arranged side by side in the front-rear direction at a predetermined interval,
The planting drive shaft projects from both sides of the rear end of each transmission frame, and the rotary case 41a of the planting apparatus 41 ...
... is installed so as to rotate.

The planting device 41 comprises a rotary case 41a connected to a planting drive shaft, and two planting tools 41b and 41b mounted on both ends of the rotary case 41a.
The planting devices 41b and 41b are forked seedling separating devices that are fixed to the planting devices 41b and 41b by rotating in the opposite direction to the rotation of the rotating case 41a by a transmission mechanism in the rotating case 41a. The tip of the work moves up and down to draw a closed elliptical locus. As a result, the seedling placement table 42 reciprocates left and right to sequentially supply the seedlings on the seedling placement surface 42a to the seedling dividing ports 43c of the support rail 43, while the seedling separating tool of the planting tool 41b. The seedlings supplied to the seedling take-out port are separated and held, and when reaching the field, the seedlings held by the seedling separating tool are extruded by the seedling pushing mechanism provided in the planting tools 41b ...

The seedling placing table 42 is provided so as to be inclined so that its front side is positioned higher, and is supported on the back side of the seedling placing surfaces 42a ... Then, both ends of a laterally moving rod that reciprocates left and right by the left and right reciprocating mechanism in the transmission case 40 are connected to the seedling placing table 42 via connecting arms, and the seedling placing table 42 reciprocates left and right. It is like this. In addition, a belt type vertical seed feeding device 4 is provided on the lower side of each row of the seedling mounting table 42.
5 are provided, the seedling mounting table 42 moves in the left-right direction, and the planting device 41 ... splits one row of the lower end portion of the seedlings from the seedling splitting port 43c. The seedlings are transferred so that one row of the lower end portion is positioned above the seedling dividing port 43c.

Two center floats 48, 48 are provided on the center side of the bottom of the seedling transplanter 4, and side floats 49, 48
49 is provided on the outside of the left and right. The mounting configuration of these floats is the planted transmission frame 40a, 40a, 4
Long float support pipes are attached to the left and right on the lower side of 0c and 40c, and a float support arm extending rearward is fixed to the pipe, and at the rear end of the float support arm. A mounting bracket fixed to the upper surface of the float is rotatably mounted on the horizontal axis. In addition, these floats 48, 48, 49, and 49 glide while leveling the mud surface when the aircraft advances forward with the ground contacting, and the two center floats 48 and 48 in the center provide the four planting positions in the center. Leveling the ground, two side floats 49 on the left and right
It is provided so that the 49 planting positions on the left and right can be leveled. In addition, the center float 48, 48 is the seedling transplanter 4
It is also a sensor for detecting the surface soil surface position for controlling the height of the surface soil to a predetermined height. The front upper surface sides of these two center floats 48, 48 are connected to each other by a connecting member, and a hydraulic valve 28 is attached to the connecting member, and the valve spool is moved up and down by the vertical movement of the front part of the float. It comes in and out of a valve case fixed to the machine frame. When the seedling transplanter 4 becomes lower than a predetermined height with respect to the topsoil, the front end portion of the center float 48 moves upward, the valve spool is pushed into the valve case, and the hydraulic cylinder 35 is extended in the hydraulic direction. Valve 3
6 is switched, and the planting work machine 4 is raised. When the planting work implement 4 rises, the valve spool is pulled out of the valve case, and when the planting work implement 4 returns to a predetermined height, the operation of the hydraulic cylinder 35 stops and the planting work implement 4 moves. The rise stops. On the contrary, when the seedling transplanter 4 becomes higher than the predetermined height with respect to the topsoil, the center float 4
The front end portion of 8 moves downward, the valve spool is pulled out of the valve case, the hydraulic valve 36 is switched in the direction in which the hydraulic cylinder 35 contracts, and the planting work machine 4 is lowered. Then, when the planting work machine 4 is lowered, the valve spool is pushed into the valve case, and when the planting work machine 4 returns to a predetermined height, the operation of the hydraulic cylinder 35 stops and the planting work machine 4 moves. The descent stops. Therefore, even if the traveling vehicle body 2 moves up and down, the seedling transplanter 4 is controlled so as to maintain a predetermined height with respect to the top soil of the field, so that the transplanting device 41 mounted on the seedling transplanter 4 ... The seedlings to be planted are planted at a predetermined depth on the surface soil of the field.

The spare seedling mounts 50, 50 are for mounting spare seedlings to be supplied on the seedling mount 42 of the seedling transplanter 4, and each of 16 left and right spare seedlings, 32 spare seedlings in total are mounted. It is provided so that you can. The specific structure of the preliminary seedling mounting table 50/50 is such that the preliminary seedling mounting table supporting frames 50a / 50a are slanted forward to the supporting frames 22a / 22a fixed to the upper portions of the front wheel final cases 10/10. The rotating shaft 50b fixed in the up position and having its axis vertically oriented at the upper end of the frame.
.50b is fixed and seedling frame frames 50d and 50d having a square loop shape in side view are fixed to the rotating cylinders 50c and 50c rotatably attached to the rotating shafts 50b and 50b. Four extra seedlings C per row in the upper and lower four steps of the frame frame.
The spare seedling frame 50e on which the seedlings can be placed is fixed. The rotation of the spare seedling frame 50e is performed by the rotation operation levers 50f and 50f.
Thus, the rotation restricted state and the rotatable state are switched. The left and right sides of the upper ends of the rotating shafts 50b and 50b are connected in an arch shape by a connecting frame 50g.

By the way, as described above, the preliminary seedling placing table 50 is used.
Numeral 50 is provided so that a large number of spare seedlings are supported on the front wheel shaft and the weight of the spare seedlings is applied to the front wheels 6.6 side.
Then, the front wheels 6 and 6 are formed into a wide tread across four sections of the seedling planting section by the seedling transplanting machine 4, and further, the front wheels 6
The rear wheel frame 13 to which the left and right rear wheels are attached is the rear wheel frame 13 around the rear wheel rolling shaft 13a. It is provided so that it can be rolled. Therefore, this rice transplanter can be equipped with a large number of spare seedlings and is highly efficient. Also,
The weight of the spare seedling mounting table, on which a large number of spare seedlings are mounted, is received in front of the front wheels 6.6, so that the center of gravity of the machine is moved to the front side, and the rear wheels 7.7 can be moved up and down. The inclination of the airframe due to the unevenness can be reduced, and the running stability of the airframe is good.

Numerals 51, 51 are row-aligning markers, which are provided on both left and right sides of the front part of the machine body, and by placing these markers above the seedlings with adjacent rows, the planting is being performed. The distance between the seedlings of No. 2 and adjacent seedlings with adjacent plantings is set at a predetermined interval. 5
Denoted at 2.52 is a drawing marker. When the operator reciprocates in the field to carry out planting work, the drawing marker body 52a is slid on the mud surface on the unplanted side during the working run, and next. The function is to draw the center line of the stroke work traveling path.

The center poles 53 are provided at the left and right center positions of the front end of the traveling vehicle body 2. When this center pole 53 is aligned with the center line drawn by the line drawing markers 52 and 52 and the planting work is performed, a predetermined distance is obtained with respect to the adjacent line of the seedlings planted during the work of the previous stroke. The planting work can be performed at the line intervals. By the way, the specific construction of the wire drawing markers 52, 52 is as follows. (See Figures 4-6). First, draw marker 52
52 are provided on the front left and right sides of the seat 20 of the traveling vehicle body 2. Specifically, the marker storage pivot shafts 52b and 52b are fixed to the left and right ends of the support frames 22a and 22a which pivotally attach the front ends of the side steps 22 and 22, respectively. The first marker arm 52c / 52c is attached to the rotary shaft.
The bases 52c 'and 52c' are rotatably attached in a substantially horizontal plane. Further, the first marker arm 52c.
The second marker arms 52d and 52d are provided at the outer end of 52c.
Arm mounting portion 52 of U-shaped member fixed to one end of
Marker turning shafts 52e and 52e having horizontal axes d'and 52d '
It is mounted so as to be rotatable around a substantially vertical plane. Then, the marker body mounting shafts 52f and 52f to which the marker wire drawing bodies (wire drawing acting bodies) 52a and 52a are fixed to the tips of the second marker arms 52d and 52d are the second marker. Car
The mounting position on the arm is adjustable.

Next, the second marker arms 52d and 52d.
A description will be given of a configuration in which the body rotates to switch to the sideways posture and the standing posture. First, the second marker arms 52d and 52
The arm mounting portions 52d 'and 52d' of d are arranged such that the end portions of the first marker arms 52c and 52c are inserted into the U-shaped recesses, and the marker rotating shaft 52e.・ First at 52e
It is rotatably connected to the marker arms 52c and 52c. The pins 52g and 52g are fixed to the arm portions 52d "and 52d" of the second marker arms 52d and 52d, and the arm pulling wire-5 is attached to the pins 52g and 52g.
One end of the inner wire of 2h / 52h is connected. Arm pulling wire-outer of 52h / 52h
Is fixed to the outer mounting piece fixed to the first marker arms 52c and 52c. Arm pulling wire
On the other end side of 52h, 52h, the inner wire is connected to the piston portion 35a of the hydraulic cylinder 35 that drives the link device 3 up and down, and the outer is connected to the cylinder portion 35b of the hydraulic cylinder 35. Therefore, when turning and traveling in the headland during rice transplanting work, the planting work machine 4 is elevated up from the paddy field surface, but at this time, the piston portion 35a of the hydraulic cylinder 35 is projecting from the cylinder portion 35b, and the
The inner pulling wires 52h and 52h are pulled. As a result, the second marker arm 52d lying sideways and in the drawing action posture is pulled up to stand up and switched to the non-drawing action posture. 52i and 52i are springs, and this spring is the second marker arm 52.
d. 52d arm attachment portions 52d ', 52d' end spring attachment holes 52i ', 52i' and first marker
Spring mounting pin 5 fixed to the arm 52c / 52c
It is mounted by being hung on 2i "・ 52i", and the second marker
It acts so as to urge the car arms 52d and 52d in the direction of turning to the drawing action posture in which they are lying down. In addition, 52j
52j is a stopper, and this stopper is the first marker.
It is fixed to the ends of the arms 52c, 52c, and thereby stops the second marker arms 52d, 52d from further turning downward from the sideways drawing action posture. 5
2k ... is the first arm pulling wire-52h / 52h
It is a band that is bound along the marker arms 52c and 52c. The first marker arms 52c and 52c are
By turning around the marker storage turning shafts 52b, 52b,
It is provided so as to switch between a drawing work posture that extends laterally in the left and right direction and a storage posture that extends along the left and right side portions of the traveling vehicle body 2.

A pair of left and right arm pulling wires 52
The piston portion 35a of the hydraulic cylinder 35 is included in h and 52h.
Lock mechanism L that locks the inner wires of the wires 52h and 52h so as not to be pulled back to the second marker arm side even when the cylinder is pulled into the cylinder portion 35b.
Is provided. After turning in the headland, seedling transplanter 4
When the arm pulling wires 52h and 52h are locked by the lock mechanism L when the arm is lowered, the second marker arms 52d and 52d do not move to the sideways drawing action posture. When the arm pulling wires 52h and 52h are unlocked by the lock mechanism L, the second marker arms 52d and 52d are connected to the springs 52i and 52d.
The urging force of 52i moves to a sideways drawing action posture. However, the lock mechanism L does not act as a lock when the piston portion 35a of the hydraulic cylinder 35 is projecting to pull the inner wire toward the hydraulic cylinder. The lock mechanism L can be operated so as to lock both the left and right inner wires. Also, it can be operated so that only one of the left and right sides can be switchably locked. Further, it is possible to operate so as not to lock both the left and right inner wires. Therefore, by the above operation, both the left and right second marker
By pulling up the frames 52d and 52d, the left and right wire drawing markers can be placed in the non-wire drawing working posture. Further, by the above operation, the left and right second marker arms 52d are switchably laid down sideways so that the left and right one of the drawing markers can be in the drawing action posture. Further, by the above-mentioned operation, both the left and right second marker arms 52d and 52d can be laid sideways so that both the left and right drawing markers can be in the drawing action posture.

The lock mechanism L has an inner wire 52 of arm pulling wires 52h and 52h on its case L '.
Plungers 52n and 52n protrude from two solenoids 52m and 52m (only one of which is shown in the drawing) provided on one side with two wire insertion holes 52l and 52l for inserting the hydraulic cylinder side of h ′ and 52h ′. Sink hole 52o ・ 5
2o is provided. Also, the solenoids 52m and 52
When the solenoid coil is not energized, the plungers 52n and 52n of m are provided with springs 52p and 52p, which allow the holes 52
o. 52o, the tip of the plunger engages with the stepped portions 52q ', 52q' of the slider pins 52q, 52q connected to the inner wire end of the hydraulic cylinder, and the inner wire 52h '. 52h 'line drawing marker
Prevents movement to the car side. When the solenoid coil is energized, the holes 52o and 52 are resisted against the springs 52p and 52p.
The inner wires 52h 'and 52h' are allowed to move toward the wire-drawing marker side by being immersed in o.

The switching operation of the solenoids 52m and 52m is performed by the marker switch SW1 shown in FIG. The switch SW1 is provided so as to be switched alternately each time the clutch lever, which intermittently operates the transmission to the seedling transplanter 4, is disengaged. A main switch SW0 is provided between the marker switch SW1 and the power source (battery) BT. Furthermore, solenoid 52m
・ Marker lamps LMP (R) and LMP (L) that blink in synchronism with turning on / off of 52 m are provided. Also,
Marker switch SW1 and solenoid 52m ・ 5 from there
A circuit for connecting both circuits is provided between two circuits connected to 2 m, and a marker operation switch SW2 is provided on the circuit.
Is provided. This marker operation switch SW
When 2 is in the off state, the marker switch SW1 is switched by the on / off operation of the clutch lever at the time of turning, and the two solenoids 52m and 52m are alternately excited and the left and right wire drawing markers 52 are turned on. -52 becomes an operating state in which only one of the left and right sides is alternately laid down and moved to the drawing operation position. When the marker operation changeover switch SW2 is in the ON state, the two solenoids 52m and 52m are both energized regardless of whether the marker switch SW1 is switched by the on / off operation of the clutch lever at the time of turning. Then, the left and right wire-drawing markers 52, 52 come to an operating state in which both the left and right sides lie down and move to the wire-drawing operating position. The changeover switch SW2 has a bounce-back type switch configuration. Therefore, when traveling back and forth in the field to proceed with the seedling transplanting work, when the headland is reached, the seedling transplanting machine 4 is lifted and turned to move to the next step.

A wire drawing marker 5 constructed as described above.
2.52 is used as follows. That is, when performing reciprocating traveling in the field for planting work, first, the left and right first marker arms 52c, 52c are first positioned in a drawing work posture in which they are laterally extended. Then, the second marker arm 52d on the side of the runway which is to be traveled next is switched to a sideways drawing action posture (the second marker arm 52 on the other side).
d is in an upright non-drawing posture), and the drawing marker 52a is slid on the mud surface, and the center of the next path is set.
Draw a line. In this way, when the planting operation travels while drawing and reaches the headland, the machine body 1 is turned to the runway side of the return stroke. At this time, the planting work machine 4 is lifted higher from the mud surface, so that the second marker arm 52d in the drawing action posture is pulled up and stands up. Aircraft 1
When the planting work machine 4 is lowered to the mud surface after the turning of No. 2 is completed, the second marker arm 52d on the opposite side to the side in the drawing action posture in the forward stroke is automatically set to the drawing action posture. Switch to. This is because the clutch lever to the seedling transplanter 4 is always operated to be turned off when moving to the next process, and the marker switch SW1 is switched in conjunction with the switching operation. In the next run of work, the center marker 53 provided at the left and right center of the aircraft as seen from the operator seated on the seat 20 is operated so as to be located on the center line drawn in the previous stroke. . As a result, seedlings can be planted at a predetermined row interval from the adjacent row of the seedlings planted in the outward path.

The right and left second marker arms 52d are provided.
.Drawing marker 52 on both left and right sides with 52d lying down
The case where 52 is used in a drawing action posture will be described. First, as shown in FIG. 7, the rice transplanter entered from the field entrance ENT provided at the ridge A1 moves to the opposite ridge A2. Then, while steering so that the right alignment marker body 51a is located on the ridge line, the planting travel is carried out along the ridge A2. At this time, the line-marker body 52a on the left-right side (left side) of the ridge A2 is set to the line-drawing operation state, and the line L1 is drawn. After the planting traveling from the side of the ridge A3 along the farm road RD until it abuts the ridge A4 facing the ridge A3, the planting work is stopped, the seedling transplanter 4 is raised, and the course is turned to the next stroke. The next stroke will be one stroke apart. When the start position of the process is reached, the seedling transplanter 4 is pressed while pressing the operation changeover switch SW2 to turn it on.
To lower. Then, the left and right drawing marker bodies 5
2a and 52a are ready for drawing. In this state, the planting traveling is performed from the ridge A4 side toward the ridge A3 side, but the left side drawing marker body 52a is steered so as to be located on the line L1 drawn in the previous stroke. At this time, the position where the wire drawing marker 52a operates to draw the wire is the control seat 1
Since it is provided in front of 8, the operator can quickly check it while facing forward. On the other hand, the drawing marker body 52a on the right side is the center line L2 of the next stroke.
Draw a line. After planting the vehicle until it hits the ridge A3, as shown in FIG. 8, it turns to the stroke on the ridge A1 side, and the center pole 53 is provided at the center of the fuselage on the center line L2 drawn in the previous stroke. Is operated so as to be positioned, and the planting travels from the ridge A3 side toward the ridge A4 side. At this time, the drawing marker body 52a on the ridge A1 side (left side) is switched to the drawing operation state to carry out drawing. In this way, when the vehicle travels back and forth with ridges A1 toward the ridge A1 and the remaining one stroke is reached, as shown in FIG. 9, along the ridge A3 from the entrance ENT side toward the ridge A2. To the ridge A4 from the ridge A3 to the ridge A2, and then to the ridge A2.
From head to ridge A1 with headland planting, and finally ridge A1
The planting run along the ridge A1 toward the doorway ENT along the lane that was left between the doorway and and exits on the farm road RD from the doorway ENT. When running with this circling planting,
The left and right wire-drawing marker bodies 52a and 52a are switched to the non-wire-drawing operating state, and the alignment marker body 51a is steered so as to be located on the edge line or on the adjacent planted seedlings. According to the above, there is no unplanted area at the four corners of the field, and efficient rice planting is possible.

As described above, this rice transplanter is provided with the line marker device for drawing the center line of the next path of travel on the ground when the plant is reciprocatingly planted in the field. A rice transplanter in which the drawing device of the car device is provided on both the left and right sides of the machine body, in a state in which the drawing effector acts on both the left and right sides, a condition in which only one left and right side effects the drawing action, and a condition in which neither the left and right sides effect the drawing action. In addition to being switchably provided, the drawing action position of the drawing action body is provided in front of the steering position of the rice transplanter.

Therefore, when the planting travel is performed with one stroke open, the drawing action bodies are switched to the drawing action state on both the left and right sides, and one of the drawing action bodies is operated so as to be positioned on the line drawn in the previous stroke. However, in the rice transplanter of the present invention, since the drawing action position of the drawing action body is provided in front of the steering position of the rice transplanter, the drawing action body is on the line drawn in the previous stroke. When confirming whether or not the vehicle is positioned, the operator can make a quick confirmation with his face facing the front side, and the confirmation operation does not disturb the control. Therefore, efficient rice planting work can be easily performed.

[Brief description of drawings]

FIG. 1 is a side view of a riding rice transplanter.

FIG. 2 is a plan view of a riding rice transplanter.

FIG. 3 is a plan view showing a structure of a transmission unit of a traveling vehicle and a structure of a ground leveling unit of a seedling transplanter.

FIG. 4 is a perspective view showing a configuration of a wire drawing marker.

FIG. 5 is an electric circuit diagram of a lock mechanism of the wire drawing marker.

FIG. 6 is a side sectional view showing a main part of the lock mechanism of the wire drawing marker.

FIG. 7 is a plan view for explaining the planting work when the wire drawing marker is used by drawing the left and right sides.

FIG. 8 is a plan view for explaining the planting work when the wire drawing marker is used by drawing the left and right sides.

FIG. 9 is a plan view for explaining a planting operation when the wire drawing marker is used by drawing on both right and left sides.

[Explanation of symbols]

 1: Passenger rice transplanter 2: Traveling vehicle 3: Lifting link device 4: Seedling transplanter 5: Fertilizer application 6.6: Front wheel 7.7: Rear wheel 13: Rear wheel frame 13a: Rear wheel rolling shaft 18 : Control seat 50/50: Spare seedling stand 52/52: Marker for drawing 52a / 52a: Marker for drawing (body for drawing)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroyuki Niiyama, No. 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefectural Engineering Department, Iseki Agricultural Machinery Co., Ltd. In-house (72) Inventor Seike Rihe 1 Yakura, Tobe-cho, Iyo-gun, Ehime Pref.Iseki Agricultural Machinery Co., Ltd. (72) Inventor Takeyuki Ouchi 1 Yakura, Tobe-cho, Iyo-gun, Ehime Pref. ) Inventor Katsu Nomura 1 Yakura, Tobe-cho, Iyo-gun, Ehime Pref.Iseki Agricultural Machinery Co., Ltd. (72) Inventor Hisashi Kamiya 1-Yakura, Tobe-cho, Iyo-gun Ehime Pref. No. 1 Hachikura, Tobe-cho, Iyo-gun, Ise, Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A line drawing marker device for drawing a center line of a traveling path of a next stroke to the ground when traveling with reciprocating planting in a field, and a wire drawing effector of the line drawing marker device. In the rice transplanters provided on both the left and right sides of the machine body, the drawing action body is provided so as to be switchable between a state in which the left and right sides draw the wire, a state in which only one of the left and right sides draws, and a state in which the left and right sides do not draw the wire. The rice transplanter is characterized in that the wire drawing action position is located in front of the steering position of the rice transplanter.