JPH0870618A - Rice transplanter - Google Patents

Abstract

PURPOSE: To enable the operation in such a pattern as to carry out only engaging operation of a clutch mechanism in an operational device which is designed to carry out both laying operation of a line-marker and engaging operation of the clutch mechanism. CONSTITUTION: A seedling transplanting apparatus is provided with a line- marker freely switchable between laying posture and uprising posture, a clutch mechanism C for intermitting driving force transmitted to a seedling transplanting apparatus, and an operational device 15 capable of switching one of the left and right line markers to laying posture and engaging the clutch mechanism C. The seedling transmitting apparatus is also provided with a checking means E for preventing switching of the line-marker to a laying posture while the clutch mechanism C is allowed to engage, when the operational device 15 is working.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling planting device which is connected to a rear end of a traveling machine body so as to be able to move up and down, and is provided with a line marker which can be switched between a lying posture and a standing posture. A clutch operation mechanism for intermittently transmitting the power transmitted to the seedling planting device, a cutting operation mechanism for operating the clutch mechanism by raising the seedling planting device above a predetermined level, and a storage mechanism for switching the left and right line markers to an upright posture by this raising. After lowering the seedling planting device to a working level, the rice planter equipped with an operation tool for switching one of the left and right line markers to the lying posture by a predetermined operation and for entering and operating the clutch mechanism. It is about machines.

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Unexamined Patent Publication No. 6-133604 as a technique configured as described above, one line marker is operated by operating a single operating tool arranged in the vicinity of a steering wheel. There is a device that switches to the lying posture and performs the disengagement operation of the clutch mechanism.

[0003]

In the rice transplanter constructed as in the conventional example, the machine reaches the headland during the work, and after raising the seedling planting device to a level away from the field scene and turning, When the seedling planting device is lowered to the working level, it has a good aspect that the line marker to be laid down and the clutch mechanism disengagement operation can be easily performed without releasing the hand from a single operation tool. It has become a thing.

In addition, during work, for example, when planting seedlings while traveling along the ridges at a position where the machine body is close to the ridges, or when traveling the machine body on a headland and planting seedlings. The clutch mechanism needs to be turned on but the line marker does not need to be laid down. In such a case, an operation tool for operating the clutch mechanism may be provided separately from the operation tool described above, and the operation tool may be configured to perform the clutch mechanism on / off operation. Since it is repeatedly operated from time to time, it is desired to use the above-described operation tool for engaging and disengaging the clutch mechanism from the viewpoint of not changing the operation feeling and also in the work not requiring the line marker.

It is an object of the present invention to perform a fall operation of the line marker and an engagement operation of the clutch mechanism with a single operation tool during a work requiring the line marker, and when the line marker is not needed, the clutch is operated. The point is to reasonably configure an operation system in which only the operation of entering the mechanism can be performed by the single operation tool.

[0006]

As described at the beginning, the feature of the present invention is that the seedling planting device is provided with a line marker that can be switched between the lying posture and the standing posture, and the power transmitted to the seedling planting device can be controlled. A disengaging clutch mechanism is provided, and a disengaging mechanism that disengages the clutch mechanism when the seedling planting device is raised, and
Equipped with a storage mechanism that raises the left and right line markers when this rises, and after lowering the seedling planting device to the working level,
In a rice transplanter equipped with an operation tool for switching one of the left and right line markers to a lying posture by a predetermined operation and for operating the clutch mechanism, the operation of operating the clutch mechanism is permitted. On the other hand, it is provided with a restraint means for preventing the line marker from being switched to the lying posture, and its action and effect are as follows.

[0007]

According to the above feature, when the seedling planting device rises above a predetermined level, the clutch mechanism is disengaged by the disengaging mechanism and the line marker in the lying posture is switched to the standing posture by the storing mechanism. When working requiring a line marker, it is possible to perform an operation of engaging the clutch mechanism and a switching operation of either the left or right line marker to the laid posture with an operating tool.
After the seedling planting device has been lifted, in the case of work that does not require the line marker, the clutch mechanism can be turned on and off by operating the operation tool, but the restraint means switches the line marker to the lying posture. It will prevent replacement.

That is, while operating the same operating tool, the state in which the line marker is allowed to switch to the laid posture at the same time when the clutch mechanism is turned on and the line marker is switched to the laid posture. In other words, the state in which only the operation of engaging the clutch mechanism is permitted can be revealed.

[0009]

Therefore, at the time of work requiring a line marker, the operation of laying down the line marker and the operation of engaging the clutch mechanism are performed by a single operation tool, and when the line marker is not required, the clutch mechanism of the clutch mechanism is operated. An operation system was constructed in which only the entering operation was performed with this single operation tool, and the operation feeling was not changed.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the engine 4 and the power from the engine 4 are not provided in the front part of the traveling machine body 3 including the drive-type front wheel 1 and the drive-type rear wheel 2 which are steered. Belt tension type continuously variable transmission 5 that shifts in stages,
A transmission case 6 to which power from the continuously variable transmission 5 is transmitted is mounted, and a driving seat 7 is provided at the center of the traveling body 3.
The hydraulic cylinder 8 for the rear end of the traveling machine body 3.
The seedling planting device A is connected through the link mechanism 9 which is driven up and down in order to construct a riding type rice transplanter.

An elevating lever 10 is provided on the right side of the driver's seat 7 to control the raising and lowering of the seedling planting device A and to open and close the planting clutch C as a clutch mechanism. A gear shift lever 11 for operating the gear shift device 5 is provided, and further, on the left side of the post 13 of the steering handle 12, the seedling planting device A is forcibly raised to a predetermined level by its operation, and the seedling planting is carried out again by the operation. Device A
Is provided with a switching lever 14 for performing control such as lowering to a working level, and a marker lever 15 is provided on the right side of this post.

The seedling planting device A is rotated by the seedling mount 16 on which the mat-shaped seedling W is placed, the transmission case 17 to which power is transmitted from the traveling machine body 3, and the power transmitted from this transmission case 17 via the chain case 18. Rotary case 19,
The rotary case 19 is provided with a pair of planting arms 20 and a plurality of ground leveling floats 21 respectively, and is configured for a plurality of rows planting, and the left and right ends are lines that can be switched between a standing posture and a lying posture. The markers 22 and 22 are provided.

Further, this seedling planting apparatus A is a leveling float 21.
The hydraulic cylinder 8 is driven to raise and lower the seedling planting apparatus A so as to maintain the ground load for one of the farm scenes at a set value, and control for maintaining the level of the seedling planting apparatus A against the field is performed. (The control system is not described in detail), and the level of the seedling planting apparatus A on which this control is performed is referred to as the work level.

As shown in FIG. 6, the left and right line markers 22, 22 are rotatably supported on the frame portion 23 of the seedling planting device A about a support shaft 24 in a front-back direction and fallen. The spring 25 that holds the posture and the line marker 2 that holds the spring 25 in the standing posture against the biasing force of the spring 25.
2 has a rocking type lock member 27 that engages with the pin 26, and the relative posture between the member at the rear end position of the link mechanism 9 and the seedling planting device A when the seedling planting device A is raised. Wire 2 that uses the changes in the left and right sides to switch to the standing posture
8, 28 and a pair of left and right electromagnetic solenoids 29, 29 for switching the lock member 27 to the unlocked posture. Incidentally, in this operation system, the wire 28 and the pin 26
The lock member 27 and the lock member 27 constitute a storage mechanism B that switches the line marker 22 to the standing posture as the seedling planting apparatus A moves up.

The elevating lever 10 is constructed so as to be operated along the route shown in FIG. 5, and when the elevating lever is set to the front side of the "lower" position in the route, the seedling planting apparatus A is lowered to the working level, Setting it to the rear side from the "raised" position raises the seedling planting apparatus A, and setting it to the "neutral" position maintains the seedling planting apparatus A at that level. Further, when the elevating lever 10 is set to the “ON” position, the planting clutch C is operated to be engaged, and when the elevating lever 10 is set to the “OFF” position, the planting clutch C is operated to be disengaged. When set to, while maintaining the seedling planting device A at the working level,
According to the operation of the switching lever 14, as will be described later, the raising and lowering of the seedling planting device A is permitted, and when the seedling planting device A is raised, the automatic disengagement operation of the planting clutch C is permitted.

As shown in FIGS. 2 to 4, the switching lever 14 is formed on the upper side with respect to the "neutral" position and on the lower side with respect to the "neutral" position. The switching lever 14 is configured to be operable in the "clutch" position and to return to the "neutral" position.
Is equipped with a first switch 30 for detecting that the switch lever has been operated to the "elevation" position, and a second switch 31 for detecting that the switching lever 14 has been operated to the "clutch engaged" position. The pressing member 33 is formed on the operation end portion and is pressed when the mode button 32 is pressed.
And a third switch 34 operated by.
The mode button 32 is biased toward the protruding side by a spring 35.

As shown in FIG. 3, the marker lever 15
Is configured so that it can be switched between a "right marker" position and a "left marker" position with reference to the "neutral" position, and can also be switched to a "neutral" position. It is provided with a pair of fourth switches 36, 36 for detecting that they have been operated to the "marker" position.

As shown in FIG. 7, a control device 37 having a microprocessor is provided with signals from the first, second, third and fourth switches 30, 31, 34 and 36, and the elevating lever 10. A solenoid valve for controlling the hydraulic cylinder 8 is provided with a system for inputting a signal from a potentiometer 38 operated by, and a signal from a level sensor 39 for detecting the level of the seedling planting apparatus A with respect to the traveling machine body 3. 40, a signal for a relay 42 for controlling an electric motor 41 for operating the planting clutch C, a signal for the left and right electromagnetic solenoids 29, 29, and a signal for a mode lamp 43 formed on a panel in front of the driver's seat 7. It has a system to do.

In this control system, the switching lever 14 is operated with the elevating lever 10 set to the "automatic" position.
Is operated to the “elevation” position, the electric motor 4
After disengaging the planting clutch C with the drive of 1, the hydraulic cylinder 8 is driven to raise the seedling planting device A, and the level sensor 39 raises the seedling planting device until it is detected that it has reached the upper limit. Then, in this raised state, the switching lever 14 is operated again to the “elevation” position, whereby the hydraulic cylinder 8
The control operation is set so as to drive to lower the work level of the seedling planting apparatus A, and after this lowering, the switching lever 14 is operated to the “clutch engaged” position to drive the electric motor 41. The control operation is set so that the planting clutch C can be engaged by. Incidentally, a disengagement operation mechanism D for disengaging the planting clutch C (clutch mechanism) when the seedling planting device A is raised is composed of a control device 37, a relay 42 for controlling the planting clutch C, and an electric motor 41.

Further, as shown in the flow chart of FIG.
An outline of the control operation of the control device 37 can be represented,
When the control is started, the initial value of the flag is set to "0" and the mode button 32 provided on the switching lever 14 is provided.
Is detected by a signal from the third switch 34, the flag value is switched, and when the mode button 32 is not pressed, the flag value is not switched (# 101 to # 105). Step), marker lever 1
When the fourth switch 36 detects that 5 is operated to either the "right marker" position or the "left marker" position, the electric motor 41 is driven to operate the planting clutch C (# 10
6, step # 107), and then if the value of the flag is determined to be “0”, the electromagnetic solenoid 29 on the selected side is driven to operate the line marker 22 to lay down and set the flag. When the value is "1", the control operation for not falling over the line marker 22 is continued until the entire control system is reset (steps # 108 to # 110). Note that the software shown in this flow chart and the operation system including the mode button 32 constitute the restraint means E.

Although not shown in the flow chart of this control operation, when the line marker 22 is not pushed down by the pushing operation of the mode button 32 (the flag is "1"), the mode lamp is operated. Four
3 is turned on to make the operator recognize that the line marker 22 is not laid down by operating the marker lever 15, and when the mode button 32 is pushed again, the mode lamp 43 is turned off to turn off the marker lever 15. At the time of operation, the control operation is set so that the operator recognizes that the line marker 22 is laid down together with the engagement operation of the planting clutch C.

[Other Embodiments] In addition to the above embodiments, the present invention is
For example, the checking means is provided with a stopper that can be switched by a driving force of an electric motor or the like between a position that mechanically prevents the line marker from falling by operating a predetermined switch and a position that allows the line marker to collapse. It is also possible.

It should be noted that although reference numerals are given in the claims for convenience of comparison with the drawings, the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

[Figure 1] Overall side view of rice transplanter

FIG. 2 is a side view showing an operation position of a switching lever.

FIG. 3 is a diagram showing an arrangement of a switching lever and a marker lever.

FIG. 4 is a sectional view showing the arrangement of operation switches.

FIG. 5 is a plan view showing an operation path of a lifting lever.

FIG. 6 is a rear view showing the operation structure of the line marker.

FIG. 7 is a block circuit diagram showing a control system.

FIG. 8 is a flowchart showing a control operation.

[Explanation of symbols]

 3 traveling machine body 15 operation tool 22 line marker A seedling planting device B storage mechanism C clutch mechanism D disengagement operation mechanism E restraining means

Claims (1)

[Claims] 1. A line marker (22) which can be switched between a fallen posture and a standing posture in a seedling planting device (A) connected to a rear end of a traveling body (3) so as to be movable up and down, and the traveling body (3). ) Is provided with a clutch mechanism (C) for connecting and disconnecting the power transmitted from the seedling planting device (A) to the seedling planting device (A), and the clutch mechanism (C) is disengaged when the seedling planting device (A) rises above a predetermined level. A mechanism (D) and a storage mechanism (B) that switches the left and right line markers (22) to the standing posture by this raising are provided, and a predetermined operation is performed after the seedling planting device (A) is lowered to the working level. A rice transplanter equipped with an operation tool (15) for switching one of the left and right line markers (22) to a lying posture and for operating the clutch mechanism (C) by the operation, wherein the operation tool (15) When operating the clutch mechanism ( )
A rice transplanter provided with a restraining means (E) for preventing the line marker (22) from being switched to the lying posture while allowing the entry operation of the line marker (22).