JP2001258320A - Self-propelled sulky transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a self-propelled sulky transplanter capable of securely carrying out transplantation stop (stoppage of transplantation) in transplantation work in spite of adopting a configuration capable of driving transplanting means or the like by a rotational power of an engine. SOLUTION: This self-propelled sulky transplanter is set to enable stopping transplantation by comprising lifting up a rolling wheel 62, releasing a main clutch C and actuating a brake B by a releasing operation of a transplanting clutch by a transplantation operating means 80.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled riding transplanter, and more particularly to a method for planting vegetable seedlings such as cabbage, lettuce and broccoli while running (self-propelled) along a ridge.

[0002]

2. Description of the Related Art A self-propelled riding transplanter having a driver's seat, an engine, planting means, and the like on a traveling body supported by front wheels and rear wheels and capable of traveling (movable) is, for example, a real vehicle. It is known from Japanese Patent Publication No. 62-36685, and is provided with left and right pedal devices that can be moved from the driver's seat on the traveling body (can be depressed by foot) to enable the on / off operation of the brake and the on / off operation of the main clutch. Also, the hand lever is provided on the manual handle to enable the on / off operation of the main clutch and brake with this hand lever, and the main clutch can be turned on / off with the manual clutch operation lever provided on the side of the driver's seat Was configured.

[0003]

In the prior art described above, the rotational power of the engine is transmitted to the right and left rear wheels, which are driving wheels, via the main clutch, while the planting means and the seedling transfer belt are connected to the ground. Then, it is driven via a chain or the like at a ground speed by a rolling wheel (a pair of left and right pressure-reducing wheels) that rotates. However, since the crushing wheel rotates due to frictional resistance between the ridges (ground PTO speed), it easily slips, and since the planting means and the seedling transfer belt are driven, a large load is applied to the crushing wheel. Despite the fact that the body (drive wheel) is traveling without slipping (running or self-propelled), the pressure-reducing wheel slips and power is not smoothly transmitted, thereby causing factors such as variation between stocks and lack of stock. Had become.

On the other hand, if the planting means and the transfer belt are driven by the engine power, it is possible to stop transplanting during the transplanting operation (during the transplanting operation) (for example, replenishment or preparation for replenishment of seedlings, headland (edge of ridge) ), And even if the main clutch that turns on and off the engine's rotational power is turned off, the implanting means and the transfer belt are driven by inertia, and the transplantation is stopped. There is a problem that the stopping is uncertain, which may cause variation in planting accuracy (transplantation accuracy), damage to seedlings, and the like.

[0005] The present invention, even if adopting a configuration in which the planting means and the like can be driven by the rotational power of the engine,
An object of the present invention is to provide a self-propelled riding transplanter in which transplantation stop (planting interruption) during transplantation operation can be reliably performed (secured).

[0006]

SUMMARY OF THE INVENTION The present invention relates to a self-propelled riding transplanter having a driver's seat, an engine, planting means, and the like on a self-propelled traveling body supported by front and rear wheels. The following technical measures have been taken to achieve the aforementioned objectives. In other words, the self-propelled riding transplanter according to claim 1 has a main clutch operating means for operating a main clutch for turning on / off the power of the engine, and a planting clutch operation for operating a planting clutch for turning on / off the planting means. Means, elevating means for elevating and lowering the rolling wheel which rotates in contact with the ground, and brake operating means for turning on and off the brake, and raising the rolling wheel via the elevating means by the disengagement operation of the planting clutch operating means. An interlocking means for performing the operation, the disengagement operation of the main clutch, and the engagement operation of the brake, respectively, is provided.

By adopting such a configuration, even when the planting means is driven by the engine, it is possible to temporarily stop planting (planting suspension) during planting work (during transplantation work). ,
The rolling wheel is raised (lifted or lifted off the ground), the main clutch is disengaged, and the brake is engaged (brake is applied) by disengaging the planting clutch operating means.
Are linked to each other so that the traveling machine can be stopped reliably, and here, transition work such as seedling replenishment work and turning work on a headland can be performed. When the ground speed of the rolling wheels is used as a driving source of the timing setting means for setting the supply timing of the seedlings to the seedling transferring means, the driving source is cut off by raising (elevating) the rolling wheels and the seedlings are stopped during planting. Is not supplied (transferred), and the rolling wheels do not become an obstacle when turning the traveling body.

[0008] In the above-mentioned claim 1, the traveling body is provided with a steering handle for getting off and turning, and the steering handle is provided with the main clutch operating means. It is recommended that the brakes be linked so as to be engaged (claim 2). With such a configuration, when turning on a headland or the like, it is possible to get off from the traveling aircraft and push down the steering wheel to make a small turning by floating the front side of the traveling aircraft with the rear wheel as a fulcrum, Also, when entering and exiting the field and moving on the road, it is possible to secure the steering stability after getting off the vehicle.

Further, in the above-mentioned claim 1, the main clutch is disengaged by the on operation of the brake operating means,
Since the main clutch is engaged so as to be engaged by the disengagement operation of the brake operating means, it is possible to reliably stop the traveling machine body when an emergency stop is required during the transplanting operation (claim 3). In addition, the above-mentioned brake may be configured so that it can be used as a parking brake.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show a transplanter 1 according to an embodiment of the present invention. The transplanter 1 has a pair of left and right front wheels 2 and a rear wheel 3.
And a seedling N supplied by an operator from a driver's seat 5 on the traveling body 4 and transported the seedling N downward. Transfer means 6; planting means 7 for receiving the seedlings N transferred by the seedling transfer means 6 and planting them in the ridges R; groove forming means 8 for forming planting grooves in the ridges R; It mainly comprises a pressure-reducing means 9 for covering and crushing the left and right sides of the planted seedling N while moving, and the planting means 7 and the pressure-reducing means 8
Is mounted on the abdomen of the traveling machine body 4 between the front wheel 2 and the rear wheel 3, and is a semi-automatic and self-propelled riding transplanter.

The traveling machine body 4 has a traveling frame 10 having a rectangular frame shape in plan view with its longitudinal direction facing forward and backward. A steering handle 11 for turning operation is provided at the rear end of the traveling frame 10 obliquely upward and rearward. The handle 11 is provided with a hand lever 11A for steering and a main clutch operating means 11B exemplified by a hand type (lever type) for turning on and off the main clutch. . An engine (drive body) E is provided on the rear upper side of the traveling frame 10, a transmission case M and a working oil tank T are provided side by side on the rear lower side, and the driver's seat 5 is provided on the front and rear halfway upper side. Have been. Further, between the front and rear of the driver's seat 5 and the engine E, a hydraulic horizontal control mechanism 35 for keeping the traveling body 4 horizontal on a sloping ground in the left-right direction or the like is provided. By arranging the transmission case M and the hydraulic oil tank T, the turning with the rear wheel 3 as a fulcrum by pushing down the handle 11 is facilitated.

A winding transmission C1 exemplified by a belt is suspended between each pulley of the output shaft E1 of the engine E and the input shaft M1 of the transmission case M, and is provided on the loose side of the transmission C1. Is provided with a main clutch C exemplified by a tension arm roller type, and this main clutch C can be turned on and off by the operating means 11B. The traveling frame 10 has a mounting member 12 extending in the left-right direction below the rear portion of the driver's seat 5, and a mounting table 13 on which a seedling box, a container, and the like can be mounted is attached to an end of the mounting member 12. Have been.

Wheel transmission shafts 14 protrude from the left and right sides of the transmission case M. An upper portion of a transmission case 15 is connected to the wheel transmission shafts 14, and the rear wheel 3 is rotatable below the transmission case 15. Installed. The power from the engine E is input to a transmission (gear transmission or the like) in the transmission case M by intermittently connecting and disconnecting the winding transmission C1 by the on / off operation of the main clutch C, and transmitted from the wheel transmission shaft 14. The power is transmitted to a pair of left and right rear wheels 3 via a power transmission mechanism in a case 15, where the rear wheels 3
Is configured as a traveling drive wheel.

A vertical holding cylinder 16 is provided on the front left and right sides of the traveling frame 10, and a supporting rod 17 is rotatably inserted into the holding cylinder 16 so that the vertical position of the supporting cylinder 16 can be adjusted. The front wheel 2 is rotatably provided at the lower end, and the front wheel 2 is steered by a left and right steering pedal 49. On the front side in the frame of the running frame 10, an implant frame 18 is connected via a pivot 19.
Is swingably supported at its front end. The transplant frame 18 includes a first support portion 20 extending in the vertical direction,
A second support portion 21 fixed to the lower end portion of the support portion 20 and extending rearward, having an L-shape in side view,
The seedling transfer means 6 is supported by the support part 20, and the planting means 7 and the pressure-reducing means 9 are supported by the second support part.

The rear end of the second support portion 21 is urged downward (toward the ground) by an urging means 22 such as a spring provided at a central portion in the left-right direction as a single unit. 9 is configured to be pressed against the upper surface of the ridge R. By providing the transplantation frame 18 swingably in this manner,
The planting means 7 and the crushing means 9 can follow the unevenness of the ridge R, and further, by supporting the seedling transfer means 6 and the planting means 7 on the same transplanting frame 18,
The relative position of both 6 and 7 does not change even if
Seedlings can be delivered smoothly.

As shown in FIG. 3, a plurality of (three in the illustrated example) mounting holes 2 are provided on the front side of the transplant frame 18.
0A is formed, and by selecting one of the mounting holes 20A and inserting the pivot 19, the height of the front side of the transplant frame 18 can be adjusted in multiple steps. Can be attached to the traveling frame 10 in multiple stages up and down (the details will be described later), so that the height of the rear portion of the transplant frame 18 can be adjusted in multiple stages. By adopting such a configuration, the planting means 7 and the pressure-reducing means 9 can be adjusted according to the height of the ridge R and the like.
Height can be adjusted as a whole.

In particular, the mounting position of the upper end of the urging means 22 with respect to the traveling machine body 4 can be adjusted up and down so that, for example, even if the transplanting frame 18 is raised in order to cope with a high ridge R, the urging means The spring pressure (pressing force) of 22 does not increase more than necessary, and it is possible to prevent the pressure-reducing means 9 from sinking into the ridge R. Further, as shown in FIGS. 1 and 3, the transplanting frame 18 is arranged to be slightly inclined rearward, whereby the seedling transfer means 6 is also inclined rearward, and the upper end portion (the seedling supply portion) is operated. It is arranged so as to be as close to the seat 5 as possible. As a result, the operator can supply the seedlings N in a comfortable posture, and the work load is reduced.

Below the first support portion 20 and the seedling transfer means 6, a groove forming device 46 comprising a pair of left and right rotating disks constituting the groove forming means 8 is disposed, and the transplant frame 18 is slightly rearward. Since the space below the inclined portion can be widened by making the inclined shape, the groove generator 46 can be implanted as much as possible.
The seedlings can be planted immediately after the formation of the planting grooves. Note that the groove generator 46 is not limited to being formed in a rotating disk shape, but may be formed in a rectangular plate shape or the like.

As shown in FIGS. 4 and 5, the urging means 22 has a horizontal support shaft 23 at the rear end of the transplant frame 18. As shown in FIG.
Cylindrical male screw body 24 swingably mounted via
A rod 25 slidably inserted in the male screw body 24 in the axial direction; an adjusting screw 26 screwed into an outer thread of the male screw body 24; and a spring receiver 27 fixed on the upper part of the rod 25.
And a spring receiver 28 provided on the upper surface side of the adjusting screw 26.
And an elastic member 29 composed of a compression coil spring interposed between the spring receivers 27 and 28, and a retaining pin and a seat 30 for retaining the rod 26 with respect to the male screw body 24.

The positioning member 3 having a large number (six in the illustrated example) of engagement grooves 32 is provided on the mounting member 12.
1 is provided, and by selecting one of the engagement grooves 32 of the positioning body 31 and engaging and disengaging the upper end portion of the rod 25, the mounting position of the urging means 22 with respect to the traveling frame 10 is vertically multi-stepped. It is adjustable. Also,
The rod 25 is urged in a direction to engage with the engagement groove 32 by a return spring 34 provided between the rod 25 and the transplant frame 18, and swings the rod 25 forward through a lever 33 at the upper end of the rod 25. Thereby, it can be detached from the engagement groove 32.

Further, the amount of compression of the elastic member 29 can be changed by screwing the adjusting screw 26 upward or downward, whereby the downward urging force (the pressing force in the ground direction) of the transplant frame 18 is increased or decreased. The pressing force can be adjusted according to the height of the ridges and the hardness. As described above, since the front and rear sides of the transplant frame 18 can be individually adjusted vertically, the inclination angle of the transplant frame 18 can be adjusted. Engagement groove 3
The number 2 is formed larger than the number of the mounting holes 20A on the front side of the transplant frame 18, so that the adjustment amount can be set finely. Thereby, the inclination angle of the transplanting frame 18 can be delicately changed, and the rearward inclination of the seedling transfer means 6 can be finely changed according to the preference and the physique of the operator, so that the supply of the seedlings N can be more easily performed. It can be done.

As shown in FIGS. 2 and 5, the pressure-reducing means 9 includes a pair of pressure-reducing wheels 36 disposed on the left and right sides of the plant 56 of the planting means 7 and the left and right outer surfaces of the second support 21. To axis 3
8 and a pair of left and right arms 37 attached to the upper and lower sides of the arm 37 so as to be swingable up and down.
Are mounted rotatably via shafts 36A, and even when the ridge heights on the left and right sides of the seedling N are different from each other, each pressure suppression wheel 36 can swing up and down individually to respond. is there. Further, between the arm 37 and the second support portion 21,
An urging member 39 such as a spring different from the urging means 22 is interposed, and the right and left compression wheels 36 are urged downward with a smaller urging force or a larger urging force than the urging means 22, respectively. It has become.

As shown in FIGS. 6 and 7, the seedling transfer means 6 has a pair of left and right transfer belts (transport bodies) 40 disposed behind the first support portion 20.
Are wound around upper and lower pulleys 41 and 42 rotatably supported by the first support portion 20, respectively. A sprocket 42B is attached to a support shaft 42A of the lower pulley 42 on the left and right. A first input shaft 43 to which the power from the engine E is transmitted is rotatably supported on the lower side of the vehicle, and a sprocket 43B is attached to the input shaft 43. These three sprockets 42B, 42B,
By winding one transmission chain 44 around 43B, the rotational power of the first input shaft 43 is transmitted to the left and right lower pulleys 42, and the left and right transport belts 40 can be synchronously driven to rotate in the direction of arrow A in synchronization. .

Then, the operator moves the left and right transfer belt 40.
By feeding the seedling N between the upper end (transfer start end) of
The seedling N is transported downward while being sandwiched by the left and right transport belts 40, and is transferred to the planting means 7 at the lower end (transfer end). In the left and right transfer belt 40, the upper end of the right transfer belt 40R is disposed at a lower position than the upper end of the left transfer belt 40L, and overlaps the left transfer belt 40L by a dimension L in the left and right direction (to cut into the left transfer belt 40L). ), Whereby the seedling N is sandwiched from the top and bottom at the transfer start end to prevent slipping and floating, and the seedling N can be reliably held and transferred.

Further, the upper pulley 41 of the right transfer belt 40R.
Is a support shaft 4 rotatably attached to the first support portion 20.
1A, the support shaft 41A is extended rearward, and a support roller (support member) 45 is fixed to the extended portion. The support roller 45 rotates integrally with the upper pulley 41 and When the seedlings are supplied, the leaves of the seedlings N are supported from below so as to prevent the seedlings N from tilting up and down. Care is taken not to disturb the planting posture by means 7.

The support roller 45 may be freely rotatable with respect to the support shaft 41A, and may be formed in a plate shape or the like without being limited to a roller shape. However, by rotating integrally with the upper pulley 41, the movement of the seedlings N is smooth, and the seedlings N can be reliably sandwiched between the transfer belts 40. On the upper side of the seedling transfer means 6,
A timing setting means 50 for setting the supply timing of the seedlings N to the seedling transfer means 6 is provided. Seedlings can be planted between plants.

The timing setting means 50 comprises a cylindrical shaft 51 which is rotatably fitted to the support shaft 41A of the upper pulley 41 of the left seedling transfer belt 40L, a pulley 52 attached to the cylindrical shaft 51, and A pulley 53 rotatably attached to a bracket 20A protruding outward from the first support portion 20, and a timing setting belt 54 wound around the pulleys 52 and 53. The timing setting belt 54 is disposed on the front side of the seedling transfer belt 40L and is formed to be narrower than the seedling transfer belt 40L. Has been established.

Then, the timing setting belt 54 is circulated through driving means, which will be described later, so that the protrusions 54A
The seedlings N can be supplied to the seedling transfer means 6 at a certain timing in accordance with the position of. As shown in FIGS. 1 to 4 and 8, the planting means 7 is a pair of left and right flexible disks (planted discs) formed of a rubber material, a resin material, or the like.
And a planting body 56 for holding the seedling by the planting body 56.
Is attached to a left-right rotation shaft 57 rotatably supported by the second support portion 21. 58 is a plant body 56
Is a freely rotatable pressing wheel that presses the planted body 56 from the left and right in a range of approximately 1/4 circle at the lower front part of the front, and the pressing action allows the seedling N to be held from the left and right.

Then, the leaves of the seedling N transferred by the seedling transfer means 6 are pinched at the front side of the planting body 56, and the seedling N is vertically changed in posture by rotating about 1/4 turn to pinch. By releasing the force, the seedlings N are released into the planting groove. The seedling transfer means 6 and the planting means 7 transmit the power from the engine E to the transmission case M and the first transmission member 61.
(See FIGS. 3 and 4), and the timing setting means 50 outputs the rotation power of the rolling wheel 62 which rotates on the ground as the traveling machine body 4 advances by contacting the ground. It is driven by being transmitted via a transmission member 84 (see FIG. 4).

As a result, the load on the rolling wheel 62 is reduced as compared with a conventional transplanter in which not only the timing setting means 50 but also the seedling transferring means 6 and the planting means 7 are driven by the rotating power of the rolling wheel 62. Of the rolling wheel 62
Is prevented, and the timing setting means 50 can be reliably driven, while the seedling transfer means 6 and the planting means 7 can be reliably driven by the power from the engine E as the traveling machine body 4 advances. I have. As shown in FIGS. 3 and 4, the first transmission member 61 includes a left-right counter shaft 63 rotatably supported by the traveling frame 10, and an outer fitting rotatably fitted to an end of the counter shaft 63. First transmission mechanism 66 composed of a chain and a sprocket interlockingly connecting the transmission shaft 64, the PTO shaft 65 projecting left and right outward from the transmission case M and the transmission shaft 64.
And a planting clutch means 67 for connecting and disconnecting (turning on and off) power transmission between the transmission shaft 64 and the counter shaft 63, and a first left-right direction rotatably supported by the traveling frame 10 behind the counter shaft 63. The relay shaft 68 and the first relay shaft 6
A second winding transmission mechanism 69 composed of a chain and a sprocket for interlocking connection between the first relay shaft 8 and the counter shaft 63; a second relay shaft 71 in the front-rear direction connected to the first relay shaft 68 via a bevel gear transmission mechanism 70; A transmission shaft 73 in the front-rear direction is connected to the second relay shaft 71 via a first joint 72 made of a universal joint.

The power from the engine E is reduced by the first winding transmission mechanism 66 from the PTO shaft 65 of the transmission case M and transmitted to the cylinder shaft 64, and is transmitted from the cylinder shaft 64 via the planting clutch means 67. The power is transmitted to the counter shaft 63, decelerated from the counter shaft 63 by the second winding transmission mechanism 69, transmitted to the first relay shaft 68, and transmitted to the first relay shaft 6.
8, the bevel gear transmission mechanism 70, the second relay shaft 71, the first
The power is transmitted to the transmission shaft 73 via the joint 72. The transmission shaft 73 includes a first transmission shaft 74 on the rear side and a second transmission shaft 75 on the front side, and both are connected via a second joint 76 formed of a universal joint.

The first transmission shaft 74 has a cylindrical first shaft portion 74A having a rear end connected to the first joint 72, and a first shaft portion 74A.
And a second shaft portion 74B whose front end is connected to a second joint 76 so as to be freely slidable back and forth through a spline structure and the like, and has a front end connected to the second joint 76. , 7
The sliding shaft has a telescopic structure that can be extended and retracted forward and backward by relative sliding of 4B. Second transmission shaft 75
The rear side is rotatably supported via a bearing on the second support portion 21 of the transplantation frame 18, the front end of which is extended to the first support portion 20, and the first input shaft 43 ( 7), whereby power is transmitted to the seedling transfer means 6.

A third relay shaft 77 in the left-right direction is rotatably supported on the transplant frame 18, and the third relay shaft 77 and a middle part of the second transmission shaft 75 in the front-rear direction are connected to the bevel gear transmission. They are connected by a mechanism 78. Third relay shaft 7
7 and the rotating shaft 57 of the planting body 56 are linked and connected by a third winding transmission mechanism 79 composed of a chain and a sprocket, and the power transmitted to the third relay shaft 77 is further transmitted to the third winding transmission mechanism 79. , And is transmitted to the rotating shaft 57. Therefore, the plant 56 is driven to rotate by the branching power of the transmission shaft 73.

With the above configuration, the power from the engine (drive body) E is reliably transmitted to the planting means 7 and the seedling transfer means 6 so that transplantation can be reliably performed as the traveling machine body 4 advances. Has become. In addition, a first transmission shaft 74 disposed between the traveling frame 10 side and the transplant frame 18 side.
Can expand and contract following the swinging and height adjustment of the transplant frame 18 (the implanting means 7 and the pressure-reducing means 9), whereby the power transmission between the two frames 10, 18 can be reliably performed with a simple configuration. You can do it.

The first transmission member 61 (particularly the transmission shaft 7)
3) is arranged in the front-rear direction so as to be biased toward one side of the traveling machine body 4 on the left and right sides, so that the arrangement space for the planting means 7 and the seedling transfer means 6 at the substantially right and left sides is not impaired. The first transmission member 6 by using the
The space for arranging 1 itself can be reduced. Further, the planting clutch means 67 is operated to be turned on and off by a planting clutch lever 80 which is a planting clutch operating means provided on the side of the driver's seat 5.

As shown in FIGS. 4, 9 and 10, the planting clutch lever 80 has a cylindrical portion 80A at the lower end thereof.
Is rotatably fitted to a pivot 81 provided on the mounting member 12 via a bracket, and a downwardly projecting projection 80B is provided on the lower surface of the cylindrical portion 80A. The projection 80B and the planting clutch The means 67 is connected by an interlocking device 82 including rods 82A and 82B and a relay link 82C. When the planting clutch lever 80 is tilted forward (the state shown by the solid line in FIG. 10), the clutch 67 is connected, and when it swings rearward and stands upright (the state shown by the two-dot chain line in FIG. 10). The clutch 67 is disengaged.

The driving means for driving the timing setting belt 54 to circulate is shown in FIGS. 4, 9 and 10.
The rolling wheel 62 that rotates and travels while contacting the groove between the ridges R
And the second transmission member 84 that transmits the rotational power of the rolling wheels 62 to the timing setting belt 54. As the rolling wheel 62, an iron wheel, a solid rubber tire,
A pneumatic rubber tire or the like is employed, and a slip prevention member 62A such as a blade or a lug is provided on the outer peripheral portion, so that the transplanter 1 can be surely rotated (rotated) without slipping with running. .

A pivot 85 is rotatably supported by a mounting member 12 of the traveling frame 10 via a bracket. The upper end of an arm 86 is pivotally supported by the pivot 85 such that the upper end of the arm 86 can swing up and down. The rolling wheel 62 is rotatably supported at the lower end of the arm 86. Further, the rolling wheels 6
2 is pressed against the ground by its own weight or by urging means such as a spring, and can move up and down following the unevenness of the ground through the swing of the arm 86. The rolling wheel 62
May be rolling on the ridge upper surface, in this case,
The crushing wheel 36 may be configured as a rolling wheel.

The second transmission member 84 includes a fourth winding transmission mechanism 87 composed of a sprocket and a chain for interlockingly connecting the rotation shaft 62B of the rolling wheel 62 and the pivot shaft 85 at the upper end of the arm 86, and this pivot shaft 85 And a transmission shaft 88 made of a flexible wire (flexible shaft) having flexibility, one end of which is connected to the first support portion 20 of the transplant frame 18. The second input shaft 89 (see FIGS. 6 and 7). The second input shaft 89 and the rotating shaft (cylindrical shaft) 51 of the timing setting belt 54 are connected to fifth, sixth, and seventh winding transmission mechanisms 90A, 90B, 90 each composed of a sprocket and a chain.
C, the upper sprocket 90D of the sixth winding transmission mechanism 90B disposed in front of the first support portion 20 is detachably provided, and the sprocket 90D has a different diameter. By changing the rotation speed of the timing setting belt 54, the supply timing of the seedlings can be changed.

At this time, even if the rotation speed of the timing setting belt 54 is changed, the seedling transfer means 6 and the planting means 7
Has no effect on the drive path of the drive, and the timing can be easily adjusted independently. Further, by making the sprocket disposed on the front side of the first support portion 20 detachable, the sprocket can be easily replaced from the front side of the transplanter 1. Second transmission member 84
Since the power transmission between the transplant frame 18 and the running frame 10 is performed by the flexible shaft 88, the transplant frame 18 (the planting means 7, the pressure reduction means 9, and the seedling transfer means 6) is swung or moved. Even if the height is adjusted, expansion and contraction (curvature, extension) follows the relative position change between the transplantation frame 18 and the traveling frame 10, and power transmission is not impaired.

The first transmission member 61 (particularly, the transmission shaft 7)
3) is disposed on one of the left and right sides of the traveling body 4 and the second transmission member 84 (particularly, the transmission shaft 88) is disposed on the other side of the traveling body 4 on the left and right sides. The left and right weight balance can be favorably achieved without impairing the arrangement space of the attaching means 7 and the seedling transfer means 6. As shown in FIGS. 9 and 10, a lower end of a connecting rod 91 is pivotally connected to a middle part of the arm 86 of the rolling wheel 62 in the longitudinal direction.
1A is formed, and an engaging pin 80C protruding from the planting clutch lever 80 is inserted into the elongated hole 91A.

Then, the planting clutch is engaged (the lever 8).
0), the rolling wheel 62 is lowered and can contact the ground, and when the clutch is in the disengaged state (the state where the lever 80 is raised), the connecting rod 91 and the arm 86 are pulled up by the engaging pin 80C, The rolling wheel 62 rises from the ground, and the engaging pin, the connecting rod, the arm, and the like constitute lifting means H for moving the rolling wheel 62 up and down. Therefore, when the power to the planting means 7 and the seedling transferring means 6 is cut off, the rolling wheel 62 rises almost at the same time as turning or moving on a headland or the like.
2 rarely hinders.

When the rolling wheel 62 is in contact with the ground, the arm 86 can swing up and down within the range of the elongated hole 91A. Referring to FIG. 11, main clutch operating means 11B for operating main clutch C for turning on / off the power of engine E
A planting clutch operating means 80 for operating the planting clutch 67 for turning on and off the planting means 7, an elevating means H for moving up and down the rolling wheel 62 which rotates in contact with the ground, and a brake operating means 100 for turning on and off the brake B. Are schematically shown in FIG.

In FIG. 11, the main clutch C is
Tension arm 102 pivotally supported by 1
The tension roller 103 is rotatably provided, and the roller 103 is elastically pulled by a tension spring 104 so as to press against the winding transmission C1. The main clutch operating means 11B is illustrated as a lever type. The solid line position shown is "clutch on", the virtual line position is "clutch off", and the lever 106 is swung about the pivot 105 as a fulcrum. 106 and base arm 10 of tension arm 102
2A is connected to the first operation transmission 107 exemplified by Bowden wire or cable, and the lever 10
6 are held by stoppers 108.

Here, the user gets off the traveling body and
By manually operating 6 to swing the support shaft 101,
This operating force causes the main clutch C to be engaged and disengaged via the first operating transmission 107. Planting clutch operating means 8
0 and the first base arm 106A of the clutch lever 106 are interlockingly connected via a second operating transmission 109 exemplified by a Bowden cable or wire, and the second base arm 106B of the clutch lever 106 and the brake B
And the brake arm 110 are interlockingly connected via a third operation transmission body 111 exemplified by a Bowden cable or wire.

That is, when the planting clutch operating means 80 is disengaged as described above, the rolling wheel 62 moves up via the elevating means H, and the clutch lever 106 is disengaged via the second operating transmission 109 in the disengaging direction. The main clutch C is disengaged via the first operation interlocking body 107, while the brake arm 11
Then, the brake B is turned on (the direction in which the brake is applied) by swinging the zero. This makes it possible to ensure that transplantation is stopped or interrupted during the transplantation operation, for example, to carry out subsequent operations such as seedling replenishment and preparation for turning.
Is not hindered, and the operation is performed while sitting in the driver's seat 5.

The brake B is connected to a pulley of the winding transmission C1 or a rotating body such as a pulley or a drum fixed coaxially with the pulley shaft.
The brake B is a brake operating means 100 exemplified by a pedal which can be freely released by an operator sitting in the driver's seat 5.
Thus, the on / off operation of the brake can be performed via a link, a cable, or the like. Also, the brake operation means 100
And the tension arm 102 of the main clutch C are linked to each other by a fourth operation transmission body 112 such as a Bowden wire or cable.

That is, when traveling on a road or the like, the user gets off the traveling machine body 4, grasps the steering handle 11, and disengages the main clutch operating means 11B provided therethrough via the third operating transmission 107. The brake B can be engaged, and the main clutch C is disengaged via the fourth operation transmission 112 by the on operation of the brake operating means 100 (braking operation is performed by depressing), and the brake operating means 11
The emergency stop can be performed by engaging the main clutch C in the off operation (brake release operation) of 0.

The brake B may be used as a parking brake, or may be used to brake a power transmission in a power transmission case 15 which is transmitted to the left and right rear wheels 3. The present invention can be appropriately changed in design without being limited to the above embodiment. For example, the first to seventh winding transmission mechanisms 66,
69, 79, 87, and 90A to 90C can be replaced with another transmission mechanism such as a belt transmission mechanism including a pulley and a belt, and the transplant frame 18 can be adjusted (changed) not only in height but also in front and rear or right and left. May be configured.

The first transmission shaft 74 of the first transmission member 61
May be constituted by a flexible shaft having flexibility, or the transmission shaft 88 of the second transmission member 84 may be constituted by a sliding shaft such as a telescopic structure. The above implant 56
Can be replaced not only with the disc shape but also with the cup shape, claw shape, etc.
Instead of the protrusion 54A of the timing setting belt 54, coloring the outer peripheral surface or the like can be used as a mark for measuring the timing of seedling supply. In addition, the timing setting belt 54 places the seedlings N thereon and transports them in the lateral direction.
It may be configured as a lateral transfer means for transferring the seedling to the seedling transfer means 6 described above.

Further, the pressing force (urging force) of the urging means 22
May be adjusted steplessly by adjusting the amount of screwing between the adjusting screw 26 and the male screw body 24, or separately from this screwing, the upper part of the rod 25 is engaged with and disengaged from the engaging groove 32. Alternatively, only one of the two may be provided. The engagement groove 32 may be formed as a protrusion.

[0052]

As described above in detail, according to the present invention, the transplanting clutch operating means can be disengaged while the vehicle is being ridden during the transplanting operation, and the main clutch can be disengaged, the brake can be engaged, and the transplantation can be stopped ( Interruption).

[Brief description of the drawings]

FIG. 1 is an overall side view showing an implanter according to an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view showing a power transmission system for the planting means and the seedling transfer means.

FIG. 4 is a plan view of the same.

FIG. 5 is a side view showing a mounting structure of a rear part of the transplant frame.

FIG. 6 is a rear view of the seedling transfer means.

FIG. 7 is a side view of the same.

FIG. 8 is a rear view of the planting means.

FIG. 9 is a front view of a rolling wheel.

FIG. 10 is a side view of the same.

FIG. 11 is an overall configuration diagram showing a main part of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 transplanter 2 front wheel 3 rear wheel 4 traveling body 7 planting means 11B main clutch operating means 62 rolling wheel 67 planting clutch 80 planting clutch operating means 100 brake operating means B brake C main clutch

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kazuo Shimasumi 38, Sairinji, Yahagi-cho, Okazaki City, Aichi Prefecture Inside the Plow Agricultural Machinery Co., Ltd. Agricultural machinery F term (reference) 2B060 AA01 AC01 BA04 CA03 CA04 CB06 CC09 2B062 AA01 AB01 BA18 BA20 BA21 BA23 BA43 CA12

Claims (3)

[Claims] 1. A self-propelled riding transplanter having a driver's seat, an engine, a planting means, and the like in a self-propelled traveling body supported by front wheels and rear wheels. Main clutch operating means for operating the main clutch to operate, planting clutch operating means for operating the planting clutch for turning on and off the planting means, lifting means for raising and lowering the rolling wheel which rotates in contact with the ground, and turning on and off the brake Operating means for raising the rolling wheel, disengaging the main clutch, and engaging the brake via the elevating means when the planting clutch operating means is disengaged. A self-propelled riding transplanter characterized by: 2. The traveling body is provided with a steering handle for getting off and making a turning operation. The steering handle is provided with the main clutch operating means, and the brake is turned on by the disengagement operation of the operating means. The self-propelled riding transplanter according to claim 1, wherein the self-propelled riding transplanter is interlocked as described above. 3. The system according to claim 1, wherein said main clutch is disengaged by an on-operation of said brake operating means, and said main clutch is turned on by an off-operation of said brake operating means. Self-propelled riding transplanter as described.