JP2001086823A - Multi-line transplanting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multi-line transplanting machine capable of preventing a planting clutch from setting to perform a planting operation when an operating lever is operated to set to a 'planting' position by an operational error, so long as a seedling-loading section or a planting case section is in a state of being folded. SOLUTION: This multi-line rice seedling-transplanting machine 1 is equipped with a seedling platform 12 on which plural seedling-loading sections 12a, 12b are arranged to freely move in a traveling direction by means of ribs 52, together with plural planting case sections 42 which are arranged under the ribs 52. And the seedling-loading sections 12b and the planting case sections 42 which are located at the right and the left end of the seedling platform 12 are so designed as to freely folded and expanded, and each of the seedling-loading sections 12b and the planting case sections 42 is equipped with each of detection switches 58, 72 for detecting whether the each section is in the state of being folded or in the state of being expanded. When the seedling-loading section 12b or the planting case section 42 is in the folded state, and when the operating lever 17 is operated with the operational error to set the planting clutch to the 'planting' position, the planting clutch is inhibited from being set to the 'planting' operation, because the detection switches 58, 72 detect the folded state to signal it to the planting clutch, then the operations of the planter arms 64 are inhibited.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-row transplanter such as a riding rice transplanter, and more particularly, to a seedling mounting table having a plurality of seedling mounting portions arranged in a lateral direction, and a planting case portion having a plurality of seedling mounting portions disposed below the seedling mounting table. The present invention relates to a multi-row transplanter having a seedling placing portion or a planting case portion located at an end portion in a moving direction and capable of being folded.

[0002]

2. Description of the Related Art FIG. 12 is a schematic explanatory view of a conventional multi-row rice planting machine viewed from the rear. In FIG. The seedlings mounted on the seedling mounting table 12 are supported by a plurality of seedling scraping openings 26 formed at appropriate locations in the longitudinal direction of the apron 18 with a planter arm (planting arm). The rods 64 are scraped by a predetermined amount and planted in a field. In addition, the seedling mounting table 12 can move between two adjacent seedling scraping openings 26, 26.

The seedling mounting table 12 has a fixed seedling mounting portion 12a and a movable seedling mounting portion 12b. The movable seedling mounting portion 12b is provided to reduce the lateral width of the body when traveling on a road or storing. Is configured to be foldable up and down with respect to the fixed seedling placing portion 12a. Further, the apron 18 is also configured such that the folding apron 18 ′ at the lateral end can be folded at a predetermined position by operating the fixing knob 94 in accordance with the reduction in the lateral width of the body due to the folding of the seedling mounting table 12. ing.

[0004]

However, according to the above-mentioned prior art, when the operating lever of the planting section including the planter arm 64 is operated to the "planting" position, the setting state of the seedling mounting table 12 is not changed. Regardless, since the planting clutch was engaged, if the operating lever was accidentally operated to the "planting" position during the folding operation of the seedling mounting table 12, the planter arm 64 was inadvertently operated, and the planter The arm 64 may come into contact with the worker.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a method for operating a control lever even when a seedling placing portion or a planting case portion is folded. It is an object of the present invention to provide a multi-row transplanter in which an implanting clutch is not operated.

[0006]

In order to achieve this object, the invention according to claim 1 is directed to a seedling placing portion (1) for placing seedlings.
2a, 12b) are arranged in a moving direction via a partition member (52), and a plurality of seedling mounts (12) are formed below the partition member (52).
Planting case part (4) for transplanting seedlings with planting claws (64)
2), the seedling mounting part (12b) located at the end of the seedling mounting base (12) in the moving direction, and the planting case part (4).
2) At least one of them is foldable,
In the multi-row transplanter (1) in which the width in the lateral direction of the machine can be reduced, the seedling placing section (12b) or the planting case section (4) is provided.
In 2), a detection switch (58, 72) capable of detecting the expanded state and the folded state of the seedling mounting part (12b) or the planting case part (42) is provided, and the seedling mounting part (12b) is provided.
Alternatively, when the operation lever (17) for the on / off operation of the planting clutch for driving the planting claw (64) is operated to the on position in a state where the planting case portion (42) is folded, On the basis of a folding state detection signal from the detection switches (58, 72), the on / off operation of the planting clutch is disabled via the control section (81).

According to a second aspect of the present invention, the detection switch (58, 7) is operated while the planting clutch is operated.
When the folded state detection signal is output from 2), a holding means (80) for holding the engaged state of the planting clutch is provided.

[Action] According to the above-mentioned invention specifying matter, the multi-row transplanter (1) of the present invention comprises a seedling in which a plurality of seedling placing portions (12a, 12b) are arranged in the moving direction via a partition member (52). A seedling having a mounting table (12) and a plurality of planting case sections (42) arranged below the partition member (52), and being located on the left and right end sides of the seedling mounting table (12); One or both of the placing part (12b) and the planting case part (42) are foldable. A detection switch (5) is provided on the seedling mounting part (12b) or the planting case part (42) to detect the expanded state and the folded state.
8 and 72) are provided respectively, and the seedling placing section (12) is provided.
b) Or, in the state where the planting case part (42) is folded, if the planting clutch is erroneously operated to the on position, for example, by operating the operation lever (17), the planting claw (64) is not engaged. Since there is a danger that the switch may be easily driven and come into contact with an operator or the like, the folding state detection signal is output from the detection switch (58, 72), and the engagement of the planting clutch is performed via the control unit (81). Operation is prohibited.

Note that the reference numerals in parentheses described above are shown for reference to the drawings, and do not limit the present invention in any way.

[0010]

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

FIG. 1 shows a riding rice transplanter as a multi-row transplanter to which the present invention is applied.
The vehicle has a traveling body 5 supported by front wheels 2 and rear wheels 3. The traveling body 5 has an engine 6 mounted in a hood 4 in front of a steering wheel 13. A driver's seat 9 having a seat 7 is provided. On the side of the seat 7, a manual operation lever 17 is provided.
As shown in FIG. 2, "raise" along the lever guide 21,
It can be operated to each position of "fixed", "down (automatic)", and "planting (automatic)".

At the rear of the traveling machine body 5, a planting section 10 as a working section is supported via a lifting link mechanism 8 so as to be able to move up and down freely, and the planting section 10 constitutes a planting case section 42. In addition to the planter case 60, the rotary case 62, the planter arm 64, and the float 14, a seedling mounting table 12 on which mat seedlings can be placed in the vertical direction is provided. A seedling feeding belt 16 is attached to the seedling mounting table 12. The seedling bed is sequentially transported to the lower end side by driving the seedling feeding belt 16, and is planted by the planting section 10.

A hydraulic cylinder (not shown) is provided between the traveling machine body 5 and a link bracket 15 fixed to the lifting link mechanism 8, and is operated by the manual operation lever 17. The hydraulic cylinder is controlled to expand and contract by the control unit 81 (see FIG. 9) disposed in the rear cover 26 below the seat 7, and the planting unit 10 moves up and down.

A hand control lever 83 is attached to a lower portion of the steering wheel 13. The hand control lever 83 can be operated up and down around a reference position, and is independent of the up and down operation. It can be operated in the longitudinal direction of the aircraft. By operating the hand operation lever 83 in the up-down direction, the planting unit 10 is controlled to move up and down, and in order to prevent erroneous operation of the planting unit 10, the manual operation lever 17 is operated to the “planting” position. Only at the time, the raising / lowering control of the planting section 10 by the hand operation lever 83 is possible.

As shown in FIGS. 3 and 4, the seedling mounting table 12 includes a fixed seedling mounting section 12a for mounting a plurality of seedlings.
A movable seedling placement part 12b for placing a plurality of seedlings, and a fixed seedling placement part 12a and a movable seedling placement part 1;
2b is disposed so that the lower end thereof is supported by the apron 18 (see FIG. 7) so as to be laterally movable with respect to the planting portion 10. In the present embodiment, five fixed seedling placing parts 12a are arranged inside the body in the lateral direction via ribs (partition members) 52, and the fixed seedling placing parts 12a are respectively provided on the left and right lateral end sides of the fixed seedling placing part 12a. Movable seedling mounting part 12b has three lines (left end)
The movable seedling placing portion 12b is foldable with respect to the fixed seedling placing portion 12a.

Here, based on FIG. 3 to FIG.
The folding structure of FIG. 2 will be described. A connecting rod 30 for connecting the fixed seedling mounting part 12a and the movable seedling mounting part 12b in an unfolded state is provided on the rear side of the movable seedling mounting part 12b. Has a handle 32 at its hand side, and the fixed seedling mounting portion 12a and the movable seedling mounting portion 12b can be fastened with screws by operating the handle 32.
On the back side of the movable seedling placing portion 12b, one end is rotatably mounted on a fulcrum shaft 34 on the back side of the movable seedling placing portion 12b, and the other end is pivotally mounted on the back side of the fixed seedling placing portion 12a. A pair of upper and lower link arms 28, 28 rotatably mounted on a shaft 36 are provided.

The fulcrum shaft 34 of the link arm 28
On the side close to, the seedling rest 12
One end of a link plate 46 is connected so as to be rotatable in the same plane as above, and the other end of the link plate 46 is provided with metal fittings 50 provided at both end portions of the fulcrum shaft 34 via connecting pins 48. Axle-mounted. The link plate 4
6 shows the movable seedling placing portion 12b in the unfolded state, as shown in FIG.
As shown in FIG. 4, in a state where the movable seedling placing part 12b is pulled in the horizontal direction with respect to the fixed seedling placing part 12a for folding, the movable seedling placing part 12b is arranged at a position substantially orthogonal to the link arm 28.
As shown in (a), the link plate 46 moves to a position substantially parallel to the link arm 28.

That is, at the time of folding, the handle 3
2 is unscrewed, the screw 30a at the end is removed, and the link arms 28, 28 are slightly pulled out in the lateral direction together with the movable seedling placing portion 12b. As a result, the link plate 46 pivots around the pivot 44 as shown in FIG. Rotate in the direction. As a result, the fulcrum shaft 34 slightly moves outward and upward in the horizontal direction, and the movable seedling placing portion 12b also moves integrally therewith.
From this state, as shown in FIGS. 5A and 5B, the movable seedling placing portion 12b is rotated inward in the horizontal direction around the pivot 36 so that the link arms 28, 28 stand upright. Then, the movable seedling placing portion 12b is fixed to the fixed seedling placing portion 12b.
can be folded above a. In this embodiment, the three and two movable seedling placing portions 12b, 12b located at both left and right ends are folded so as to vertically overlap the fixed seedling placing portion 12a.

A plurality of seedling mounting portions 12a (12b) forming the seedling mounting table 12 are partitioned by ribs 52 as partitioning members in the left-right and lateral directions. A piece (not shown) is loosely fitted to the apron 18 so as to be movable in the lateral direction, and the seedling mounting table 12 is movable in the lateral direction.

In the present invention, a detection switch is provided on the seedling placing portion 12 or the planting case portion 42 for detecting the expanded state and the folded state of the seedling placing portion 12 or the planting case portion 42. Placement part 12 or planting case part 42
When the operating lever 17 for the on / off operation of the planting clutch that drives the planting claw 64 is operated to the on position in a state where is folded, control is performed based on a folding state detection signal from the detection switch. The planting clutch was made inoperable through the section.

That is, FIG. 6 shows a front view of a portion adjacent to the fixed seedling placing portion 12a and the movable seedling placing portion 12b in the unfolded state.
Further, an L bracket 56 is attached to the fixed seedling placing portion 12a side, and a detection switch 58 is attached to the L bracket 56. This detection switch 58
When the seedling mounting table 12 is in the deployed state, the detector at the tip thereof comes into contact with the L bracket 54 and is pressed, so that the detection switch 58 outputs a developed state signal to a control unit 81 described later. When the seedling mounting table 12 is in the folded state, the detector of the detection switch 58 separates from the L bracket 54 and protrudes forward.
8 outputs a folding state detection signal to a control unit 81 described later. Then, based on the folded state detection signal, the engaging operation of the planting clutch is prohibited via the control unit 81.

Next, in the present embodiment, the seedling mounting table 1
2, the planting case 42 is also foldable. Hereinafter, the folding structure of the planting case section 42 will be described with reference to FIGS. 7 and 8.

FIG. 7 shows the seedling mounting table 12 and the planting case section 42.
FIG. 3 shows a side view of the planter arm 64 of the planting case portion 42 in a folded state, in which the planter arm 64 is driven based on the power transmitted from the PTO shaft 40.

The planting case 42 is folded at an angle of approximately 45 degrees with the movable planting case 42 'on the left and right ends thereof centered on the folding fulcrum 74 of the fixed planting case 42. This is done by turning upward. And
Fixed-side planting case 42 and movable-side planting case 4
A detection switch 72 is provided adjacent to 2 ′.

Here, in order to fold the planting case 42 ', the handle 68 is turned from the state shown in FIG. 8B to the movable planting case 42' from the fixed planting case 42.
8A, and further, as shown in FIG. 8A, the link arm 78 is rotated substantially at right angles about the rotation fulcrum 71 together with the apron guard 66, and the support arm 76 is lifted obliquely. A screw portion at the tip of the connecting rod 70 is screwed and fixed to the end of the support arm 76. on the other hand,
A planter case 60 constituting the planting case portion 42, and rotary cases 62 and planter arms 64 on the left and right sides thereof.
By turning upward about the folding fulcrum 74 by about 45 degrees, the can be folded as shown in FIG.

When the planting case 42 is in the unfolded state, the detector at the tip of the detection switch 72 comes into contact with the facing member and is pressed. Is output, and in the state where the planting case portion 42 is folded,
When the contact at the tip of the detection switch 72 is detached from the facing member, a control unit 8 described later is released from the detection switch 72.
A folding state detection signal is output toward 1 and, based on the folding state detection signal, the on / off operation of the planting clutch cannot be performed.

FIG. 9 is a control block diagram according to the present embodiment.

In the figure, the control unit 81 includes a lever position detection potentiometer 82 for detecting the operation position of the manual operation lever 17, an operation position of a hand operation lever 83 capable of operating the planting unit 10 and the like at hand. Signals from changeover switches 83a and 83b for detecting, a hydraulic cam position potentiometer 84 for detecting a cam position of a hydraulic cam (not shown) for controlling a hydraulic cylinder are input, a seedling alarm switch 85, a seedling mounting 12 , The detection switch 58 (not shown, but also includes the detection switch 72 of the planting case part 42), the planting switch 87, and the horn switch 8
8 and the like are input. Then, based on these input signals, the planting unit 10 is controlled via the control unit 81.
The cam rotation motor 89 for raising / lowering control is controlled, and the seedling supply monitor lamp 90, the planting monitor lamp 91,
The buzzer 92, the horn 93, and the like are turned on or sound.

That is, a lever position detection potentiometer 82 for detecting the operation position of the manual operation lever 17.
(Or, the changeover switches 83a and 83b for detecting the operation position of the hand operation lever 83) are electrically connected to the cam rotation motor 89 via the control unit 81, and the manual operation lever 17 (or the hand When the operating lever 83) is operated to each of the "up", "fixed", "down", and "planting (automatic)" positions, an operation position signal is sent to the control unit 81, and the hydraulic cam is driven by the cam rotation motor 89. It is rotated.
The hydraulic cylinder controls the hydraulic cylinder via the hydraulic control valve, and controls the elevation of the planting section 10 and the on / off control of the planting clutch.

As described above, in the present embodiment, the manual operation lever 17 (or the hand operation lever 83) is set to the “planting state” in a state where at least one of the seedling placing portion 12 and the planting case portion 42 is folded. (Automatic), the control unit 81 is operated by the detection switch 58 or 72.
, A folding state detection signal is output, and based on the folding state detection signal, the operation of engaging the planting clutch is prohibited. Thereby, in a state where the seedling placing portion 12 or the planting case portion 42 is folded, the planter arm 64 is prevented from being carelessly operated and the planter arm 64 does not come into contact with the operator. Note that, when the folding state detection signal is output, an alarm may be sounded instead of prohibiting the engagement operation of the planting clutch.

Next, according to the present invention, when the folding state detection signal is output from the detection switches 58 and 72 in a state where the planting clutch is engaged, the engaged state of the planting clutch is maintained. Holding means is provided.

That is, when the seedling placing portion 12 and the planting case portion 42 are in the unfolded state and the planting clutch is engaged to perform the planting operation, the detection switch 58 is affected by the vibration of the machine body or the like. , 72 are separated from each other, and a folding state detection signal is output from these detection switches 58, 72. Even in such a case, if the engagement operation of the planting clutch is disabled through the control unit 81 by the above-described control, a trouble occurs in a smooth transplanting operation. Therefore, in the present embodiment, as shown in FIG. 9, even if the folding state detection signal is output from the detection switches 58 and 72 in the state where the planting clutch is engaged,
A state holding unit 80 is provided for holding the engaged state of the planting clutch. The state holding unit 80 prevents the planting operation from being interrupted due to a malfunction or the like, so that a stable planting operation can be performed.

Next, a flowchart relating to the hydraulic control shown in FIGS. 10 and 11 will be described.

In S11 of FIG. 10, the manual operation lever 17
It is determined whether or not the lever position has changed. If there is no change, the process returns to the beginning. If there is a change, in S12,
Judge whether the lever position is “raised” or “other than raised”. If the lever position is "up", the hydraulic cam position is set to "up" in S13, and the process returns to the beginning. If the lever position is "other than up", it is determined in S14 whether the lever position is "down" or "other than lower". If the lever position is "lower", the hydraulic cam position is returned to "lower (planting clutch disengagement)" in S15 and returns to the beginning, and if the lever position is "other than lowering", whether the lever position is "fixed" in S16. Judge whether it is "planting". If the lever position is "fixed", the hydraulic cam position is set to "fixed" in S17, and the process returns to the beginning. If the lever position is "planting", the seedling rest is stored (folded) in S18.
It is determined whether the projection is overhang (unfolded state). If the lever position is "planting" and the seedling cradle is stowed, it is inconvenient to engage the planting clutch in this state. Therefore, in this embodiment, an alarm is sounded in S19. If the seedling mounting is overhanging, the planting clutch needs to be engaged in this state, so the hydraulic cam position is set to "planting (planting clutch engaged)" in S20.

In S31 of FIG. 11, it is determined whether the lever position is "planting" or "other than planting". If "other than planting", the process returns to the beginning. Is O
It is determined whether N or OFF. If the planting switch is OFF, the process returns to the beginning. If the planting switch is ON, it is determined in S33 whether the lever operation is “up”, “down”, or “absent”. If the lever operation is "none", the process returns to the beginning. If the lever operation is "up", it is determined in S34 whether the hydraulic cam position is "lower" or "other than lower". If the hydraulic cam position is "down", S36
Returns to the beginning with the hydraulic cam position as "up", and if the hydraulic cam position is other than "down", it is determined in S35 whether the hydraulic cam position is "planting" or "up or fixed". If the hydraulic cam position is “raised or fixed”, the process returns to the beginning. If the hydraulic cam position is “planted”, the hydraulic cam position is “reduced (planting clutch disengaged)” in S37 and returns to the beginning.

If the lever operation is "lower" in S33, it is determined in S38 whether the hydraulic cam position is "fixed" or "other than fixed". If the hydraulic cam position is "fixed", the hydraulic cam position is lowered in S39. And returns to the beginning. If the hydraulic cam position is "other than fixed", it is determined in S40 whether the hydraulic cam position is "lower" or "up or planting". If the hydraulic cam position is “raised or planted”, the process returns to the beginning, and if the hydraulic cam position is “lowered”, it is determined in S41 whether the seedling rest is stored (folded) or extended (deployed). Then, if the seedling rest is stored, it is troublesome to operate the planting clutch in this state, so in this embodiment, an alarm is sounded in S42. Also, if the seedling rest is overhanging, the planting clutch needs to be engaged in this state.
To set the hydraulic cam position to "planting (planting clutch engaged)".

[0037]

As described above, according to the first aspect of the present invention, the on / off operation of the planting clutch for driving the planting claw in a state where the seedling placing portion or the planting case portion is folded. When the operation lever is operated to the ON position, the planting clutch or the planting case is in the folded state by disabling the planting clutch based on the folding state detection signal from the detection switch. In addition, even if the operation lever is erroneously operated, the planting clutch is not engaged, so that the driven planting claw can be prevented from coming into contact with an operator or the like.

According to the second aspect of the present invention, when the folding state detection signal is output from the detection switch in a state where the planting clutch is engaged, the holding state of the planting clutch is maintained. By providing the means, even if a detection signal is output from the detection switch based on a malfunction due to a vibration of the machine body, the engaged state of the planting clutch is maintained as it is, so that a stable transplanting operation can be performed. it can.

[Brief description of the drawings]

FIG. 1 is a side view of a riding rice transplanter to which the present invention is applied.

FIG. 2 is a diagram showing a positional relationship between a manual operation lever and a lever guide.

FIG. 3A is a front view of the seedling mounting table in an unfolded state, and FIG.
Is a sectional view taken along the line AA.

FIG. 4 (a) is a front view of a state where a movable seedling mounting portion is pulled out, and FIG. 4 (b) is a cross-sectional view along AA thereof.

FIG. 5A is a front view of the seedling mounting table in a folded state,
(B) is an AA sectional view thereof.

FIG. 6 is a front view of an adjacent portion of the fixed seedling placing portion and the movable seedling placing portion in the unfolded state.

FIG. 7 is a side view of the seedling mounting table and the planting case section in a folded state.

FIG. 8A is a front view of the planting case portion in a folded state,
(B) is a front view of the developed state.

FIG. 9 is a diagram showing a control block in the present embodiment.

FIG. 10 is a diagram showing a control flowchart in the present embodiment.

FIG. 11 is a diagram showing a control flowchart in the present embodiment.

FIG. 12 is a view showing a conventional example in a folded state when the planting section is viewed from the rear.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 riding rice transplanter 12 seedling mounting table 12a fixed seedling mounting part 12b movable seedling mounting part 17 manual operation lever 28 link arm 34 fulcrum shaft 42 planting case part 44 rotation fulcrum 46 link plate 48 connecting pin 52 rib 58 detection switch 64 planter Arm 72 Detection switch 80 State holding unit 81 Control unit

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Chie Endo 667 Iya-cho, Oji-machi, Higashi-Izumo-cho, Yatsuka-gun, Shimane 1 F term in Mitsubishi Agricultural Machinery Co., Ltd. (Reference) 2B041 AA02 AA13 AB05 AC06 BA08 CA03 CA14 CC02 2B064 AA05 AA07 BA10 BA30 DC04 DC10

Claims (2)

[Claims] 1. A seedling mounting table formed by arranging a plurality of seedling mounting sections for mounting seedlings in a movement direction via a partition member, and a plurality of seedling mounting tables arranged below the partition member in correspondence with the partition member, and planting. A planting case portion for transplanting seedlings with claws; and at least one of the seedling placing portion and the planting case portion located at an end in the moving direction of the seedling placing stand is freely foldable, and the machine body lateral direction In the multi-row transplanter whose width can be reduced, the seedling placing portion or the planting case portion is provided with a detection switch capable of detecting an expanded state and a folded state of the seedling placing portion or the planting case portion, When the operating lever for the on / off operation of the planting clutch that drives the planting claw is operated to the on position in a state where the placing portion or the planting case portion is folded, the folded state is detected from the detection switch. Based on the signal, through the control unit The serial clutch planting was the input and inoperable, multi-start transplanting machine, characterized in that. 2. A holding means for holding the on-state of the planting clutch when a folding state detection signal is output from the detection switch while the on-planting clutch is on. The multi-row transplanter according to claim 1, wherein: