JPH07184423A - Self-propelled transplanter - Google Patents

Abstract

(57) [Summary] [Purpose] While controlling the rolling of the machine, the machine can be run in an inclined manner during transplanting work on a sloping ground, and seedling transplantation on a sloping ground can be performed vertically or nearly vertically to the ridges. ,
In addition, it was easy to implant in the center of the ridge, and yet it was possible to control rolling in inclined running. A correction spring 92 that is movable in a direction opposite to the swing direction of the rolling sensor 88 when the rolling sensor 88 is tilted is connected to the rolling sensor 88, and the correction spring 92 is provided near the control section of the traveling vehicle body 94. The correction spring 92 is moved by hand operation to correct the neutral position of the rolling sensor 88, and the rolling control is left to enable the inclined traveling of the machine body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a self-propelled transplanter for transplanting seedlings such as vegetables into ridges in a field.

[0002]

2. Description of the Related Art Conventionally, a self-propelled agricultural machine such as a rice transplanter is equipped with a rolling control device for keeping the machine body horizontal. When the machine body tilts in the vehicle width direction, one of the wheels is moved against the other. I try to raise and lower it and keep it horizontal.

[0003]

However, the rolling control device used in the self-propelled agricultural machine as described above responds to even a slight inclination to horizontally control the rolling control device. When applied to a self-propelled transplanter that transplants seedlings to the field ridges, even if the field is horizontally controlled for a small inclination such as horizontal ground, the seedlings are almost vertical to the field ridges. Although it can be transplanted in the shape of, if the slope angle is large, such as on a sloping ground, for example, if the slope angle is 5 degrees or more,
When it is horizontally controlled, it cannot be transplanted vertically to the ridges, and the machine body tends to shift to the valley side, which makes it difficult to implant it in the center of the ridges.

According to the present invention, the fall angle of the transplanter is
Although it varies depending on the model, it is usually around 28 degrees, and it was invented focusing on the fact that there is no danger of falling until this fall angle. The purpose is to achieve this horizontal control while allowing rolling control of the aircraft. The machine can be run in a slanted shape by correcting the, seedling transplantation on a sloping land can be performed in a state vertical to the ridge, or in a state close to vertical, and can be easily transplanted to the center of the ridge,
Nevertheless, the point is that rolling control can also be performed in inclined traveling.

[0005]

In order to achieve the above object, the present invention supports a pair of left and right drive wheels 7A and 7B in a vertically movable manner on a traveling machine body 1 having an implanting device 4, and drives each of them. The machine body 1 is configured to be tiltable by raising and lowering the wheels 7A and 7B, and the weight 87 at the lower end portion is attached to the machine body 1.
While supporting a rolling sensor 88 having a horizontal swinging motion about a support shaft 89 extending in the longitudinal direction of the machine body, a rolling correction spring 92 having one end connected to the rolling sensor 88 is provided. , The rolling sensor 88 is movably supported in the counter-oscillation direction when the body 1 is tilted, and the correction spring 92 is supported by the body 1.
It is interlocked with the operating body 94 provided near the control section of the.

[0006]

According to the present invention, since the rolling correction spring 92 is provided and the correction spring 92 is interlocked with the operating body 94, the rolling sensor 88 can be moved in the anti-swing direction when the machine body is tilted. , When transplanting seedlings such as vegetables to a field on a sloping land, the seedlings are transplanted in a state of being inclined in the inclination direction of the sloping land, and therefore, the seedlings can be transplanted in a state of being vertical or nearly vertical to the ridges. Since the deviation to the valley side can be reduced, it can be more easily transplanted to the center of the ridge, and the rolling sensor 88 operates under the correction by the correction spring 92 even when transplanted in an inclined shape. Therefore, the unevenness between the ridges on which the wheels travel is controlled by rolling on the basis of the neutral position corrected by the correction spring 92. It can be controlled in state, also, it can be avoided that fall.

[0007]

EXAMPLE A self-propelled transplanter shown in FIGS. 5 and 6 is of a walking type, in which an engine 2 and a generator 3 which is linked to the engine 2 by a transmission belt 3a are mounted on an upper front part of a traveling body 1. A pair of left and right transmission cases 6A, 6 extending rearward on both sides in the vehicle width direction of a transmission case 5 provided on the rear side of the engine 2.
B is supported so that it can swing up and down, and each of these transmission cases 6
While supporting the left and right drive wheels 7A and 7B on A and 6B,
At the front part of the machine body 1, a pair of support shafts 81A and 81B are rotatably supported via a cylinder shaft 82 extending in the vehicle width direction of the machine body 1, and these support shafts 81A and 81B are provided outside in the vehicle width direction. A pair of swing arms 8A and 8B extending rearward, respectively.
Is swingably supported vertically, and these swing arms 8A,
The left and right front wheels 9A, 9B and a pair of guide wheels 10 rolling along the ridge A are rotatably supported by 8B, while the transplanting device 4 is provided on the rear side of the machine body 1.

The traveling machine body 1 includes a front frame 11, the mission case 5 fixed to a rear portion of the front frame 11, an intermediate frame 12 fixed to a rear portion of the mission case 5, and an intermediate frame thereof. The rear frame 13 is fixed to the rear part of the transmission frame 12, and the transplanting device 4 is provided on the rear frame 13. The seedlings to be described later via the transplant transmission case 14 at the rear part of the mission case 5. A planting device is provided. In FIGS. 5 and 6, 15 is a gauge wheel provided below the transplantation device 4, and 1 is a gauge wheel.
Reference numeral 6 is a steering handle attached to the rear portion of the rear frame 13, and 17 is a main shift lever 18 and a stock shift lever 19.
It is an operation panel that supports. Further, 20 is a planting depth adjusting lever, and 21 is a left and right side clutch lever.

Further, the transplanting device 4 receives power from the transplant transmission case 14, and one pot seedling is received from the pot seedling storage portion 22a of the seedling tray 22 in which a large number of pot seedling storage portions 22a are arranged vertically and horizontally. A seedling planting device 25 having a seedling take-out claw 23 to be taken out and an openable / closable transplanting claw 24 for receiving a pot seedling falling from the seedling take-out claw 23 and transplanting it to the ridge A.
And the seedling planting device 25 for holding the seedling tray 11
A seedling feeding device 26 for feeding the seedling tray 11 to the ridge A and a hole making device 28 having a hole making body 27 for making a planting hole in the mulch film laid on the ridge A.

As shown in FIG. 5, the seedling feeding device 26 laterally feeds a seedling stand supporting frame 30 having a seedling stand 29 on which the seedling tray 22 is placed to reciprocate left and right. It comprises a device 31 and a tray vertical feeding device 32 which vertically feeds the seedling tray 22 by one pitch in the vertical direction of the seedling tray 22 at the end position of the horizontal movement of the seedling stand supporting frame 30.

The transverse feed drive shaft 33 of the frame transverse feed device 31 is provided with a transmission chain 35, on the output side of a planting clutch case 34 provided with a planting clutch (not shown).
While being interlocked via a counter shaft 36 and a transmission chain 37, the lateral feed drive shaft 33 is provided with an intermittent gear, a lateral feed stop cam, and a pair of lateral feed switching gears, which are not shown in the drawing, which are incorporated in a drive case 38. The lateral feed shaft 39 having the traverse groove 39a is interlocked, and by intermittently driving the lateral feed shaft 39, the seedling stand support frame 30 is laterally fed laterally every one pitch in the lateral direction of the seedling tray 22. Of.

The seedling support frame 30 is provided with the seedling mounting table 29 on its upper portion, and a tray collecting guide 30 for guiding the seedling tray 22 after picking up seedlings is provided on the lower portion thereof.
a is provided, and the vertical feed drive unit 40 of the vertical feed device 32 is attached to one side plate, that is, the outside of the left side plate 30b in the illustrated embodiment, and the seedling stand supporting frame 30 is provided.
A guide roller 41 is provided at the lower front portion of the above, and a slide guide is provided at the lower rear portion thereof, although not shown.

At the middle portion of the rear frame 13, left and right side frames 42 and 43 are formed as shown in FIG.
Are fixed, and the seedling stand supporting frame 30 is disposed in a region surrounded by the side frames 42 and 43 and the intermediate portion of the rear frame 13, and the side frames 42 and 43 are fixed.
It is supported by guide rails 44 and 45 extending horizontally between them so as to reciprocate left and right by the drive of the lateral feed shaft 39, and the right side frame 43 is provided with the above-mentioned lateral feed device 31. The drive case 38 is attached and the lateral feed shaft 39 extending from the drive case 38 is attached.
The shaft end of the shaft is pivotally supported on the left side frame 42.

The tray vertical feed device 32 is supported between the left and right side frames 42 and 43, and is interlocked with the lateral feed drive shaft 33 in the drive case 38.
A vertical feed drive shaft 46, which is constantly driven during transplanting work by receiving power from the horizontal feed drive shaft 33, and the vertical feed drive shaft 4
6, a pair of longitudinal feed operation members 4 mainly composed of rollers provided on the drive shaft 46 at intervals of lateral movement strokes.
The drive unit 40 having a follower cam (not shown) that operates via 7 and an output side of the drive unit 40, and at the end position of the lateral movement of the seedling support frame 30 by the operation of the follower cam. A vertical feed driving body 49 mainly composed of a sprocket coupled to the intermittently driven output shaft 48, a vertical feed driven body 50 and mainly a roller chain, and intervenes between the pot seedling accommodating portions 22a of the seedling tray 22, The transfer belt 51 forcibly transferring the seedling tray 22 has a transfer belt 51 having a transfer member mainly composed of a pin.

The drive unit 40 has a vertical feed drive case 52 removably attached to the seedling support frame 30, and the drive case 52 is interlocked with the vertical feed operation member 47 (not shown). The drive unit having the follower cam that operates in accordance with the above is installed, and the rotation amount of the output shaft 48, that is, the vertical pitch of the seedling tray 22 is selected by the shifter operation of the plurality of speed increasing gears provided in the drive unit. The vertical feed amount can be obtained accordingly.

In the above construction, however, the seedling support frame 30 has the frame lateral feed device 31 each time a pot seedling is taken out by the seedling take-out nail 23.
Is moved to the left or to the right by, and when the movement end position is reached, the output shaft 48 is driven in conjunction with the vertical feed operating member 47 of the vertical feed drive shaft 46 that is constantly driven. The vertical feed driving body 49 rotates by a predetermined angle, and the seedling tray 22 is moved in the vertical direction in the seedling tray 22 via the transport member of the transport belt 51 that is hung between the vertical feed driven body 50 and the vertical feed driven body 50. The seed feed tray 23 is fed vertically by an amount equivalent to one pitch, and the seedling take-out claws 23 allow the seedling tray 2
The pot seedling taken out from No. 2 is dropped on the transplanted nail 24,
The transplanted nails 24 are used for transplantation into the planting holes perforated by the hole forming body 27.

Further, the hole forming device 28 is constructed by embedding an electric heater (not shown) and supporting the hole forming body 27 so as to be able to move up and down via an elevating arm 54. In the transplant transmission case 14 provided on the rear side,
A pair of connecting links 59, 60 are provided so as to be vertically swingable via a bracket 63, the elevating arm 54 is supported by the connecting links 59, 60 so as to be able to move up and down, and a cam is provided on an output side 64 of the transplant transmission case 14. Attach the plate 65,
Of the connecting links 59, 60, the upper connecting link 59
A roller 66 that comes into contact with the outer peripheral cam surface of the cam plate 65 is provided in the middle of the path, and the rotation of the cam plate 65 causes the transplanted nail 24 to move.
Immediately before the transplanting operation by (1), the raising / lowering arm 54 is lowered and the hole forming body 77 punches the planting hole in the multi-sheet laid on the ridge A by burning.

According to the present invention, in the transplanter constructed as described above, the rolling control device having the following construction is provided.

That is, the traveling machine body 1 is provided with a hydraulic pump 70 which is driven in conjunction with the engine 2 as shown in FIG. 2, and a rolling cylinder 71 which is operated by pressure oil from the hydraulic pump 70. And a rod 73 of a piston 72 which is provided inside the cylinder 71 so as to freely move back and forth.
Is connected to a projecting piece 75 of a swing shaft 74 that is rotatably supported on the machine body 1 and extends outward in the radial direction with a phase difference of 180 degrees on both axial sides of the swing shaft 74. Connecting pieces 76 and 77 are provided so as to project, and these connecting pieces 7
6, 77 are connected with interlocking pieces 80A, 80A projecting from the supporting side bases of the left and right transmission cases 6A, 6B via the first connecting rods 78, 79.
80B, the protrusions 83A of the support shafts 81A, 81B,
83B is connected via the second connecting rods 84 and 85.

When pressure oil is supplied to the rod-side chamber of the piston 72 in the rolling cylinder 71 and the head-side chamber is opened to the tank 86, the piston rod 73 retracts to move the swing shaft 74 to the position shown in FIG. 2 is rotated clockwise, and by this rotation, the first connecting rod 7 connected to the interlocking piece 80A of the left drive wheel 7A.
8 is pulled, and conversely, the first connecting rod 79 that is connected to the interlocking piece 80B of the right side drive wheel 7B is pushed out, and by the pulling and pushing out, the second drive wheel 7A and the interlocking piece 80A are moved to the second side. The left front wheel 9A connected via the connecting rod 84 descends, and at the same time, the right front wheel 9B connected to the right drive wheel 7B and the interlocking piece 80B via the second connecting rod 85 rises.
The piston 72 in the rolling cylinder 71
Pressure oil is supplied to the head side chamber of the
When opened to 6, the left drive wheel 7A and the left front wheel 9A rise conversely, and the right drive wheel 7B and the right front wheel 9B.
Will fall.

On the other hand, as shown in FIG. 1, a rolling sensor 88 having a weight 87 at its lower end is pivoted to the left and right around a support shaft 89 extending in the longitudinal direction of the machine body at the front of the traveling machine body 1. A 4-port, 3-position switching type switching valve 90, which is supported on the support shaft 89 and is interposed in the hydraulic circuit of the rolling cylinder 71, is located at a position deviated from the shaft center of the support shaft 89. A rolling correction spring 92 is provided, which is connected via a connecting arm 91 and whose one end side is connected in the middle of the rolling sensor 88.
The other end side of the rolling sensor is connected to an operating arm 93 that is rotatably supported by the support shaft 89, and the correction spring 92 is rotated by the operation of the operating arm 93 to cause the correction sensor 92 to tilt when the machine body 1 is tilted. In the anti-oscillation direction of 88, that is, the tilting of the machine body 1 inclining to the valley side causes the rolling sensor 88 to oscillate from the neutral position to the valley side in the oscillating direction of the rolling sensor 88, and The operation arm 93 is interlocked with an operation body 94 provided near the control section of the machine body 1, that is, below the operation panel 17 installed on the handle 16 through an operation cable 95.

The operation cable 95 is an outer cylinder 95.
a and an inner wire 95b guided by the outer cylinder 95a, one end of the inner wire 95b is locked to the actuating arm 93, and one end of the outer cylinder 95a is fixed to the machine body 1. Outer 96 received 97
And the supporting piece 96 and the operating arm 9
3, a return spring 98 is interposed, and the operating body 94
When pulling the inner wire 95b by operating
The spring 98 is bent to swing the actuating arm 93 in the right tilt direction, and this swinging corrects and controls the rolling sensor 88 to the mountain side, that is, to the left side when viewed from the operator. When the pulling of the inner wire 95b is released by operating 94, the return spring 98
1 by the restoring force of
The rolling sensor 88 is oscillated in the direction of the chain line, and the rolling sensor 88 is corrected and controlled by this oscillating movement to the right side when viewed from the driver. , 9B is located on the valley side of the sloping ground, and the vehicle is traveling in a right-inclined shape, and when swinging in the left-inclining direction, as shown in FIG. 1, the left wheels 7A, 9A It is located on the valley side of the sloping ground, and the aircraft runs in a left sloping shape.

In FIG. 1, θ is an angle on a sloping ground, and the rolling sensor 88 corresponds to the angle θ.
The correction control is performed on the mountain side, but the correction limit is applied in the range up to the fall angle.

This correction limitation is performed by the operating body 94 as shown in FIG. This operating body 94 is shown in FIG.
The main shift lever 18 and the stock shift lever
19 and the like are provided below the operation panel 17, and this mounting structure is constructed as shown in FIG. That is, a support body 101 is attached below the operation panel 17 via a support bracket 100, and a lever shaft 102 in the machine longitudinal direction is supported by the support body 101.
A connecting shaft 1 that is orthogonal to the lever shaft 102 at the shaft end of 02.
03 to support the operating body 94 so as to be able to swing back and forth, and to set the operating position of the operating body 94 at the rear edge portion of the support body 101, and at the same time, to provide a plurality of engaging recesses for limiting the correction. 104 is provided, and the operating body 94 is provided with an engaging piece 105 that engages with the engaging recessed portion 10. Bias in the direction of the engagement recess 104,
Then, in the middle of the lever shaft 102, the operation cable 9
The operation piece 107 for locking the inner wire 95b of No. 5 is fixed, the end portion of the inner wire 95b is locked, and the outer cylinder 95a of the operation cable 95 is attached to the stay 108 extending from the handle 16 and the outer receiver 109. It is supported through.

Therefore, in FIG. 4, the inner wire 95 is operated by operating the operating body 94 in the right direction (clockwise direction) when viewed from the operator around the lever shaft 102.
By pulling b, the operating arm 93 is swung to the right, and by operating the arm 93 leftward (counterclockwise) as seen from the operator, the pulling of the inner wire 95b is released, and the return wire is returned. By the restoring force of the spring 98, the operating arm 93 can be swung in the leftward tilt direction.

With the above arrangement, the operating arm 93 is swung in the right tilting direction or the left tilting direction, and the correction spring 92 is moved in the anti-rocking direction of the rolling sensor 88 when the machine body tilts, that is, By moving to the mountain side on the sloping ground, the rolling sensor 88 also swings from the neutral position, that is, the vertical position with respect to the horizontal line to the above-described anti-rocking direction, that is, to the mountain side on the sloping ground,
The neutral position is corrected by this swing, and by this correction, the rolling cylinder 71 operates with the corrected position where the rolling sensor 88 is tilted as the neutral position, and the rolling control of the machine body 1 is performed at this neutral position. Of.

Further, when the machine body 1 tilts left and right based on the neutral position corrected by the movement of the correction spring 92, that is, when the machine body 1 tilts left and right due to the unevenness of the ridges, the rolling sensor 88 Since the rolling cylinder 71 swings in the left-right direction in response to tilting, the rolling cylinder 71 is operated by the operation of the switching valve 90 by the swinging of the rolling sensor 88 with respect to the corrected neutral position, and the body 1 is moved to the neutral position. It controls rolling.

Therefore, by correcting the neutral position by the correction spring 92, the machine body 1 can be run in a tilted state, and this machine body inclination is due to the operation body 94 provided near the control section of the machine body 1. By operation, it can be immediately adjusted on the hand side as needed, and when transplanting seedlings such as vegetable seedlings into the ridges of the sloping ground by the transplanting device 4 as shown in FIG. 1, depending on the slope of the sloping ground. Aircraft 1
Can be performed while tilting, and as a result, the seedlings can be transplanted vertically or in a state close to vertical, and the body 1
Since it is possible to reduce the deviation toward the valley side, it can be easily transplanted to the center of the ridge.

In addition, when the machine body 1 is tilted and transplanted as described above, the rolling sensor 88 operates under the correction by the correction spring 92, and therefore, there are irregularities in the ridges. If the body 1 tilts due to this unevenness, rolling control is performed based on the corrected neutral position, and it is possible to control to the above-mentioned vertical transplantation state and also to avoid falling. .
Although the working arm 93 is used in the embodiment described above, the correction spring 92 may be directly connected to the operation body 94 via the operation cable 95.

When the actuating arm 93 is used, it may be supported by using the support shaft 89 of the rolling sensor 88, or may be supported by a separately provided support shaft.

Further, the support shaft 8 of the rolling sensor 88
9, the switching valve 90 is mechanically connected via a connecting arm 91, and the detection of the body tilt due to the swing of the sensor 88 is mechanically output to the switching valve 90 via the connecting arm 91. Then, the switching valve 90 is operated,
The potentiometer or the like may be used to detect the swing of the sensor 88, and the switching valve 90 may be electrically operated as a proportional control valve. Further, although the correction spring 92 is a coil spring, an elastic band such as rubber may be used.

Further, in the embodiment described above, as shown in FIG. 5, the center line X- of the right-hand wheels 7B and 9B in the machine width direction.
The distance L ₁ with respect to the X-ray is longer than the distance L _{2 with} respect to the vehicle width direction center line XX of each of the left wheels 7A and 9A, and the transmission case 6B of the right drive wheel 7B has the transmission case 6B. The transmission cylinder shaft 110 extends outward from the right side of the sleeve 5, and the transmission cylinder shaft 110 has a support cylinder 111 that extends from the machine body 1 in parallel with the transmission cylinder shaft 110 near the shaft end thereof. , Supported via the support arm 112. Also, this support arm 11
2 has a front portion extending forward and supports a support shaft 81B of the right front wheel 9B.

As shown in FIG. 7, on the side where the support arm 112 is mounted on the support cylinder 111, the support arm 112 is provided with a mounting shaft 113 which is fitted into the support cylinder 111, and A mounting hole 111a is provided in an end portion of the cylinder 111, and a plurality of pin holes 113a are provided in the mounting shaft 113 in a penetrating manner.
The mounting pin 114 to be inserted from 1a is attached to the pin hole 113.
The mounting shaft 11 is selected by selecting one of a and inserting.
3 is attached to the support cylinder 111 at the mounting position
1, the position of the support arm 112 can be changed by changing the mounting position, and the support positions of the transmission cylinder shaft 110 and the support shaft 81B can be changed.

Therefore, even when the distance L ₁ between the right drive wheel 7B and the right front wheel 9B with respect to the machine width direction center line XX changes, the support cylinder 111 and the support arm 11 are also changed.
2 can be shared, and the transmission cylinder shaft 110 and the support shaft 81B
Can be supported at an appropriate position, and the support cylinder 1
The centering of 11 and the support arm 112 can be easily performed.

Further, in the transplanting device 4 of the above-mentioned embodiment, before the transplanting of the pot seedlings in one seedling tray 22 is completed, the next seedling tray 22 is replenished to the seedling mounting table 29 and the transplanting is completed. The empty tray is taken out from the tray collecting guide 30b, but taken out from the seedling table 29 above the machine body 1, specifically, above the drive wheels 7A and 7B as shown in FIG. An empty tray mount 115 for mounting the empty seedling tray is provided via a stay 116.

The empty tray mounting table 115 extends in the machine width direction as shown in FIGS.
117 for pressing the empty seedling tray to be placed on the tray from above
The tray retainer rod 117 having a is rotatably supported at the tray retainer position shown by the solid line in FIG. 8 and the retracted position shown by the chain line, and the support shaft portion 1 of this tray retainer rod 117 is supported.
A spring receiver 118 protruding outward in the radial direction of the support shaft 117b is fixed to the shaft 17b, and a tension spring 119 is provided between the spring receiver 118 and the stay 116.
The locking position with respect to 18 is interposed so that it can be switched between the tray pressing side and the retracting side beyond the axis of the support shaft portion 117b.
An unstable switching mechanism that urges the tray pressing rod 117 toward the empty tray platform 115 at both the tray pressing position and the retracted position is configured.

Therefore, when the empty seedling tray is mounted on the empty tray mounting table 115, the tray pressing rod 117 is moved to the position shown in FIG.
By turning to the tray holding position as shown by the solid line in
The empty tray can be reliably placed on the empty tray mount 115 without being blown away by the wind, and the tray pressing rod 117 can be stably retracted to the retracted position by the unstable switching mechanism. When the empty tray is mounted on the empty tray mounting table 115, the tray pressing bar 117 does not interfere and can be easily mounted.

[0038]

As described above, according to the present invention, the rolling correction spring 92 is provided as described above, and the correction spring 92 is interlocked with the operating body 94 so that the rolling sensor 88 can move in the direction opposite to the swing direction when the machine body is tilted. Since it can be moved, when transplanting seedlings such as vegetables to a field on a sloping land, it is transplanted in a state of being inclined in the inclination direction of the sloping land, and therefore the seedling is transplanted in a state vertical or nearly vertical to the ridges. Moreover, since the displacement of the airframe to the valley side can be reduced, it can be easily transplanted to the center of the ridge, and the rolling sensor 88 corrects the correction spring 92 even when transplanting in an inclined state. Therefore, the rolling control is performed based on the neutral position corrected by the correction spring 92 with respect to the unevenness of the ridges on which the wheels travel, and accordingly, , To be controlled in the above-mentioned transplant conditions, also, it can be avoided that fall.

[Brief description of drawings]

FIG. 1 is an explanatory view of a main part as seen from the front of the machine body.

FIG. 2 is an explanatory diagram illustrating an operation of a rolling sensor.

FIG. 3 is an explanatory view of the rolling sensor as viewed from the side.

FIG. 4 is a perspective view illustrating a mounting portion of an operating body.

FIG. 5 is a schematic plan view of the entire transplanter with a part omitted.

FIG. 6 is a schematic side view of the entire transplanter.

FIG. 7 is a partial cross-sectional view illustrating a support portion of the support arm to the support cylinder.

FIG. 8 is an enlarged side view of an empty tray mounting table.

FIG. 9 is a plan view of the tray retainer bar.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Traveling machine 4 Transplanting device 7A Left side rolling wheel 7B Right side rolling wheel 87 Weight 88 Rolling sensor 89 Spindle 92 Rolling compensation spring 94 Operating body

Claims (1)

[Claims] 1. A running vehicle (1) having a transplantation device (4).
A pair of left and right drive wheels (7A) and (7B) are supported so as to be able to move up and down, and the body (1) can be tilted by raising and lowering the drive wheels (7A) and (7B). In 1), a rolling sensor (88) having a weight (87) at the lower end is provided with a support shaft (89) extending in the longitudinal direction of the machine body.
A rolling correction spring (92) whose one end side is connected to the rolling sensor (88) is provided so as to be swingable right and left around the center, and the correction spring (92) is used when the machine body (1) is tilted. The rolling sensor in (88)
Of the correction spring (9
2) The operating body (9) provided near the control section of the airframe (1)
A self-propelled transplanter characterized by being linked to 4).