JPH08275628A - Multilane rice transplanter - Google Patents

Abstract

PURPOSE: To inhibit a turning on-operation of a planter clutch by an operation lever in a folded state of a movable seedling laying unit. CONSTITUTION: In this multilane rice transplanter in which plural seedling laying units are horizontally arranged, a movable seedling laying unit locating at an utmost outside is made to be foldable and a stopper plate rotatably attached to a frame of a driver's seat is engaged to a planter clutch 66 of a planting device, the stopper plate is fixed and inhibits a turning on-operation of the planter clutch by a hydraulic planting lever 14 when the movable seedling laying unit is in a folded state and the turning on- and off-operations of the planter clutch by the hydraulic planting lever 14 are brought to be possible when the movable seedling laying unit is in an open state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-row rice transplanter in which a plurality of seedling placing portions are arranged in a lateral direction, and more specifically, a planter clutch capable of turning on and off a planter clutch in the planting portion by operating a hydraulic pressure and a planting lever. Concerning the structure of the row rice transplanter.

[0002]

2. Description of the Related Art A multi-row rice transplanter forms a seedling mount by arranging a plurality of seedling mounts on which seedlings are mounted in the lateral direction, and fixes a movable seedling mount located on the outermost side in the lateral direction in a deployed state. The seedling mounting base can be folded by superimposing it on the seedling mounting part, but as the number of rows increases, the amount of lateral projection from the aircraft increases, so when traveling on a general road the vehicle Therefore, the movable seedling placing portions that do not meet the standard and are located on the outermost left and right sides are overlapped with the fixed seedling placing portion and folded.

When the multi-row rice transplanter is stored in the expanded state, a large garage space is required. Therefore, the movable seedling placing section is generally stored in a folded state.

[0004]

However, in such a conventional multi-row rice planting machine, the planter clutch of the planting section is erroneously "turned on" while the movable seedling placing section is folded with respect to the fixed seedling placing section. When the operation is performed, the seedling placing base moves left and right at the same time as the operation of the planter arm, so that there is a problem that the folded portion such as the apron and the seedling placing portion come into contact with each other and the planting portion is damaged. In addition, there is a possibility that the planter clutch may be inadvertently erroneously turned “on” with only one of the movable seedling placing parts in the left and right lateral directions left in the deployed state.

The present invention has been made in order to solve such a problem, and an object thereof is to prevent the planter clutch from being operated by the operating lever when the movable seedling placing portion is folded. It is to provide a row rice transplanter.

[0006]

To achieve this object, according to the present invention, a plurality of seedling placing portions on which seedlings are placed are laterally arranged to form a seedling placing table (12) and at least in a deployed state. Movable seedling placing part (13
(b) is moved so that it can be folded into the fixed seedling placing part (13a), and the planter clutch (66) of the planting part (11) can be turned on and off by operating the operation lever (14). In 1), when the movable seedling placing portion 13b is in the folded state, the operation lever 14 does not allow the planter clutch 66 to be operated.

In the multi-row planter (1), a stopper plate (64) movably supported by a machine frame (63) is connected to a planter clutch (66) of the planting section (11). The stopper plate (64) is configured to be switchable between a fixed position and a movable position based on the movement of the movable seedling placing portion (13b).
When the stopper plate (64) is in the movable position, the operation lever (14) operates the planter clutch (6).
6) can be turned on and off, and the stopper plate (64)
When is in the fixed position, the operation of the planter clutch (66) by the operation lever (14) is prohibited.

[0008]

According to the present invention, the stopper plate (64) movably supported by the machine body frame (63) has the planter clutch (6) of the planting section (11).
6), so that the stopper plate (64) is held in a movable position when the movable seedling placing portion (13b) is in a deployed state, and the movable seedling placing portion (13b) is movable when the movable seedling placing portion (13b) is folded. When the seedling placing part (13b) moves, the stopper plate (64) is switched to the fixed position. When the stopper plate (64) is in the movable position, the operation lever (1
4) The planter clutch (66) can be freely turned on and off by the operation of 4), and when the stopper plate (64) is in the fixed position, the operation of the planter clutch (66) by the operation lever (14) is prohibited. Then, the planting part (11) is prevented from being inadvertently operated in the folded state to damage each part.

The reference numerals in parentheses described above are shown for reference to the drawings and do not limit the structure of the present invention.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a riding multi-row rice planting machine equipped with the seedling placing device of the present invention. The riding rice planting device 1 has a traveling vehicle 2 on its front side and a seedling placing device 3 on its rear side. Are mounted and supported via the lifting link mechanism 5.
The traveling vehicle 2 has a traveling machine body 8 supported by front wheels 6 and rear wheels 7. The front wheels 6 of the traveling machine body 8 are
The engine unit 9 is mounted further forward, and the driver seat 4 is provided behind it. In the seedling placing device 3, a float 10 is arranged at a lower portion thereof, a planting device 11 is arranged above the float 10, and a seedling placing table 12 is arranged above the planting device 11 in a diagonally forward direction. It is arranged to be inclined.

As shown in FIG. 2, this seedling placing table 12 is
Fixed seedling placing section 13a for placing a plurality of rows of seedlings, movable seedling placing section 13b for similarly placing a plurality of rows of seedlings, and placing / moving these fixed seedling placing section 13a and movable seedling placing section 13b. Apron 15 The fixed seedling placing portion 13a
Are arranged in the lateral direction, and the movable seedling placing portion 13b is arranged further outside in the lateral direction of the fixed seedling placing portion 13a.
It can be folded by being superposed on a (see FIG. 1).

Then, as shown in FIGS. 3 to 6, one end of the movable seedling placing portion 13b is vertically swung up and down in the vertical direction at a lateral outer side portion of the movable seedling placing portion 13b by a fulcrum shaft 21. Freely pivoted and the other end fixed seedling placing part 13
A pair of link arms 20 and 20 rotatably attached to the a side by pivots 32 and 32 are provided. Fixing metal fittings 22, 22 having an L-shaped cross section are attached to the back surface of the movable seedling placing portion 13b by bolts 23, 23, and these fixing metal fittings 22, 22 are connected and reinforced by the fulcrum shaft 21.

On the other hand, on the back surface of the fixed seedling placing portion 13a, metal fittings 25, 25 having an L-shaped cross section are attached by bolts 26, 26 substantially corresponding to the above-mentioned fixing metal fittings 22, 22. 25 is connected and reinforced by a stay 24. Guide plates 27, 27 having a U-shaped cross section are attached to both ends of the stay 24, and a side wall of the guide plate 27 has a long hole 30 along the longitudinal direction.
And a guide surface 56 extending in the same direction as the elongated hole 30 is formed on one end surface of the guide plate 27.

The other end of the link arm 20 is sandwiched in the side wall of the guide plate 27 having a U-shaped cross section and penetrates the other end of the link arm 20 and the side wall of the guide plate 27. So that the pivot 32
Is slidably mounted in the long hole 30. As a result, the link arm 20 is rotatably attached to the guide plate 27 and can be pulled out to the lateral outside of the seedling stand 12 along the long hole 30 of the guide plate 27 via the pivot 32. ing.

A guide pin 57 is planted on the side of the link arm 20 near the pivot 32, and when the guide pin 57 contacts the guide surface 56 of the guide plate 27, the elongated hole 30 is formed. And this guide surface 56
The movable seedling placing portion 13b is held substantially horizontally with respect to the fixed seedling placing portion 13a.

Next, a support member 59 is welded and fixed to the fulcrum shaft 21 provided on the back surface of the movable seedling placing portion 13b integrally with the fulcrum shaft 21.
A handle 60 is attached to the. Moreover, the handle 60 is provided so as to be inclined downward in the lateral direction with respect to the seedling placing surface, and by using the handle 60, the movable seedling placing portion 13b can be smoothly pulled out to the folding operation. .

On the back surface of the movable seedling placing portion 13b, the movable seedling placing portion 13b and the fixed seedling placing portion 13 which are in a developed state are provided.
A connecting member 33 that connects a and a is provided. The connecting member 33 has a handle on the proximal side, and has a connecting rod 33a provided so as to penetrate both lateral ends of the back surface of the movable seedling placing portion 13b, and a screw portion 33b.

In the expanded state of the movable seedling placing portion 13b, the screw portion 33b of the connecting member 33 is screwed into the nut portion (not shown) on the fixed seedling placing portion 13a side, and
As shown in FIG. 5, the vertical middle portion and the upper portion of the joint portion 40 are connected by clamp members 44 and 44 '.

Further, in the folded state, FIG.
As shown in (a) and FIG. 9, a nut portion 34a is provided on a standing member 34 that is erected on the surface side of the fixed seedling placing portion 13a adjacent to the movable seedling placing portion 13b. The screw portion 33b of the connecting member 33 is screwed together, and the engaging convex portion 34b provided on the fixed seedling placing portion 13a side is engaged with the engaging concave portion 33c provided on the movable seedling placing portion 13b side (see FIG. 8). ) Is engaged, and the movable seedling placing portion 13
b is retained. In this way, in the folded state of the seedling placing table 12, the fixed seedling placing portion 13a and the movable seedling placing portion 13b are superposed so as to face the same surface in the same direction.

As shown in FIGS. 4 (a) and 5, the fixed seedling placing portion 13a and the movable seedling placing portion 13b are provided with seedling conveying portions 16a, which are conveyor belts for feeding seedlings to the planting device 11, respectively. 16b is attached. The seedling conveying section 16a of the fixed seedling placing section 13a and the movable seedling placing section 1
The seedling transport unit 16b of 3b is driven by a drive shaft.
Further, seedling holding guides 17 are attached to the respective seedling placement surfaces of the fixed seedling placement portion 13a and the movable seedling placement portion 13b.

FIG. 4 (b) is a view of the machine body seen from the rear side, in which the planting device 11 is arranged above the float 10, and the fixed seedling placing portion 13a and the movable seedling placing portion 13b are aprons. It can be slid to the left and right along 15.

Next, as shown in FIGS. 2 and 10, a hydraulic pressure / planting lever 14 for controlling a planting relationship is provided on a side portion of the driver seat 4.
This hydraulic pressure / planting lever 14 includes a cam 73 and an arm 7.
1 and the planter clutch wire 68 are used to connect and disconnect the planter clutch 66 in the transmission. Further, the hydraulic / planting lever 14 is connected to a control valve 67, and a hydraulic cylinder (not shown) is operated by the operation of the control valve 67.
The planting device 11 is moved up and down.

That is, as shown in FIGS.
The fixing member 63 attached to the driver's seat 4 is provided with a stopper plate 64 having a notch 64a in the center and rotatably attached by a shaft 65, and the stopper plate 64 is separated from the shaft 65. Joint 69 in position
, The joint 70 is connected to the joint 69, and is further connected to the planter clutch 66 of the planting device 11 via the planter clutch wire 68.

At the connecting portion between the joint 70 and the planter clutch wire 68, the arm 71 swingable about a shaft 74 is attached, and the arm 71 has a roller 72 at its tip and this roller. The hydraulic pressure / planting lever 14 is provided via a cam 73 that is brought into contact with 72.
It is connected to. Based on the operation of the hydraulic pressure / planting lever 14, the cam 73 rotates about a shaft 75, and the roller 72 abutting on the cam 73 rotates about a shaft 74, and the other end of the arm 71. Moves in the direction of arrow a or b.

When the other end of the arm 71 moves in the direction of arrow a in the figure, the planter clutch 66 is disengaged (disengaged state), and when it moves in the direction of arrow b in the figure, the planter clutch 66 is engaged (engaged state).

On the other hand, as shown in FIG. 10, wires 77, 77 are attached to the pivots 32, 32 of the link arms 20, 20 provided on the side of the movable seedling placing portion 13b via wire connection plates 76, 76 '. 'Is connected, and these wires 77, 77' are connected to the relay link mechanism 85,
Further, the cable 82 is output from the relay link mechanism 85.

The relay link mechanism 85 includes a central shaft 78.
A swing plate 79 which can swing about a center, a terminal 87 attached to one end of the swing plate 79 and connected to the wire 77, and a spring 8 attached near the terminal 87.
A terminal 88 attached to urge the oscillating plate 79 to one side by the force of 6, and a terminal 89 attached to the other end of the oscillating plate 79 and connected to the wire 77 '. It has a terminal 90 attached near the terminal 89 and connected to the cable 82.

The cable 82 output from the relay link mechanism 85 is attached to a metal fitting member 83 provided upright from the fixing member 63, as shown in FIGS.
A pin 81 is attached to the tip of the wire 80 contained in the cable 82. Furthermore, this pin 8
A spring 84 is mounted between 1 and the metal fitting member 83.

When the movable seedling placing portion 13b is in the unfolded state, the link arms 20 and 20 are not pulled out, the wires 77 and 77 'are in a loosened state, and the swing plate 79 is of the spring 86. The urging force keeps the state of swinging in the direction d of the drawing (clockwise direction in the drawing), whereby the cable 82 is pulled. Therefore, FIG.
As can be seen from the above, the pin 81 attached to the tip of the wire 80 is pulled out from the notch 64a of the stopper plate 64 against the force of the spring 84.
In this state, since the stopper plate 64 is rotatable about the shaft 65, the planter clutch 66 is controlled to be turned on / off via the cam 73, the arm 71, and the planter clutch wire 68 based on the operation of the hydraulic pressure / planting lever 14. It will be possible.

Next, in order to fold the movable seedling placing portion 13b, as shown in FIG.
Pull either 0 or 20 laterally to pull wire 77
Or 77 'is pulled, whereby the rocking plate 79 rocks in the direction c in the drawing (counterclockwise direction in the drawing), and the cable 82
The tension of the (wire 80) is loosened. Then, as shown in FIG. 13, the pin 81 connected to the tip of the wire 80 is pushed forward by the elastic force of the spring 84, and the stopper plate 6
4 is fitted into the notch 64a. Pin 81 has notch 64
When fitted in a, the stopper plate 64 cannot rotate about the shaft 65. In this state,
The planter clutch wire 68 connected through the joints 69 and 70 cannot move in the direction of the drawing b. Therefore, in this state, the hydraulic pressure / planting lever 14
Even if is operated, the planter clutch wire 68 cannot move in the direction of the drawing b.
You can't. In this way, when the movable seedling placing portion 13b is in the folded state, the hydraulic / planting lever 14 is prohibited from entering the planter clutch 66.

Next, the overall operation of the multi-row rice transplanter of this embodiment will be described with reference to FIGS.

FIG. 6 shows an expanded state in which the fixed seedling placing portion 13a and the movable seedling placing portion 13b are arranged in the lateral direction, and in order to fold the movable seedling placing portion 13b from this state, the connecting member 3 is used.
Operate the handle of 3 to fix the connecting rod 33a to the fixed seedling placing portion 1
Remove from 3a. Subsequently, when the grip 60 is grasped and pulled outward in the lateral direction, as shown in FIG.
In 0, the pivot 32 and the guide pin 57 slide along the long hole 30 and the guide surface 56, and the movable seedling placing portion 13b is pulled out from the fixed seedling placing portion 13a.

By pulling out the movable seedling placing portion 13b, the pin 81 at the tip of the wire 80 is fitted into the notch portion 64a of the stopper plate 64, as described above.
In this state, even if the hydraulic pressure / planting lever 14 is operated,
The planter clutch 66 cannot be turned on.
As a result, the planter clutch 66 is erroneously turned “on” when the movable seedling placing portion 13b is in the folded state, and the planting device 1
Simultaneously with the operation of 1, the seedling placing portion also moves left and right, and there is no possibility that the folded portion such as the apron and the seedling placing portion come into contact with each other to damage the planting device 11.

Next, as shown in FIG. 8, the movable seedling placing section 1
When 3b is rotated outward (counterclockwise) about the fulcrum shaft 21, the fixing metal fitting 22 fixed to the movable seedling placing portion 13b contacts the stopper pin (37) and stops at that position.

Subsequently, as shown in FIG. 9, the grip 60 is grasped and the link arm 20 and the movable seedling placing portion 13b are simultaneously rotated inward (clockwise), so that the link arm 20 is erected at a substantially right angle. Then, the handle of the connecting member 33 is operated to screw the screw portion 33b at the tip of the connecting rod 33a into the nut portion 34a of the standing member 34, and further, the engaging recessed portion 33c on the movable seedling placing portion 13b side (see FIG. 8). Is engaged with the engaging convex portion 34b on the fixed seedling placing portion 13a side. As a result, the fixed seedling placing portion 13a and the movable seedling placing portion 13b can be overlapped and arranged in a folded state in which the same surface faces the same direction.

[0037]

As described above, according to the present invention, the stopper plate movably supported is connected to the planter clutch, and the stopper plate is switched from the moving position to the fixed position by moving the movable seedling placing portion. Since it is configured as described above, it is possible to prevent the planter clutch from being accidentally turned “on” when the movable seedling placing portion is folded,
Therefore, it is possible to prevent the planting part from being damaged due to the apron or other folded part coming into contact with the seedling placing part.

[Brief description of drawings]

FIG. 1 is a side view of a multi-row rice transplanter with a seedling placing device folded.

FIG. 2 is a plan view of the multi-row rice transplanter with the seedling placing device deployed.

FIG. 3 is a side view of the main part of the multi-row rice transplanter with the seedling placing device folded.

FIG. 4 (a) is a schematic plan view showing a seedling transport section of a multi-row rice transplanter. (B) It is the front view and is a figure which shows the structure of the planting part.

FIG. 5 is a plan view showing a state in which the seedling placing device is deployed.

FIG. 6 is a front view when the movable seedling placing section and the fixed seedling placing section are in a developed state.

FIG. 7 is a front view showing a state in which the link arm is slightly pulled out in the lateral direction.

FIG. 8 is a front view showing a state where the movable seedling placing portion is rotated outward after the link arm is further pulled out in the lateral direction.

FIG. 9 is a front view of the state in which the movable seedling placing portion is rotated inward and folded from the state of FIG.

FIG. 10 is a view showing a connection state between a movable seedling placing portion and a stopper plate, and the stopper plate and a planter clutch.

FIG. 11 is a side view showing the positional relationship between the hydraulic pressure / planting lever and the stopper plate.

FIG. 12 is a front view of FIG. 11.

FIG. 13 is a partially enlarged view of a stopper plate portion.

[Explanation of symbols]

 1 Passenger rice transplanter 2 Travel vehicle 3 Seedling placement device 4 Driver's seat 11 Planting device 13a Fixed seedling placement part 13b Movable seedling placement part 14 Hydraulic / planting lever 20 Link arm 21 Support point shaft 24 Stay 27 Guide plate 30 Long hole 32 Axis 63 Fixing member 64 Stopper plate 65 Shaft 66 Planter clutch 68 Planter clutch wire 71 Arm 73 Cam 77, 77 'wire 80 Wire 81 pin 82 Cable 84, 86 Spring 85 Relay link mechanism

Claims (2)

[Claims] 1. A plurality of seedling placing portions on which seedlings are placed are arranged in a lateral direction to form a seedling placing base, and at least a movable seedling placing portion located laterally outermost in a deployed state is moved to fix a fixed seedling placing base. In the multi-row rice transplanter in which the planter clutch of the planting part can be turned on and off by operating the operating lever, the planter clutch cannot be turned on and off by the operating lever when the movable seedling placing part is folded. The Tajo rice transplanter is characterized by the above. 2. A plurality of seedling placing portions on which seedlings are placed are arranged in a lateral direction to form a seedling placing base, and at least a movable seedling placing portion located on the outermost side in the lateral direction in a deployed state is moved to fix a fixed seedling placing base. In the multi-row rice transplanter in which the planter clutch of the planting part can be turned on and off by operating the operation lever, the stopper plate movably supported by the machine frame is used for the planter clutch of the planting part. The stopper plate is configured to be switchable between a fixed position and a movable position based on the movement of the movable seedling placing portion, and when the stopper plate is in the movable position, the planter clutch is turned on and off by the operation lever. When the stopper plate is in the fixed position, the operation of the planter clutch by the operation lever is prohibited. Multithread rice transplanter, characterized in that.