JP2582458Y2 - Walking rice transplanter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a walking rice transplanter.

[0002]

2. Description of the Related Art Conventionally, as one form of a walking type rice transplanter, a main clutch operation unit capable of intermittently operating a power transmission path to each drive unit is attached to a fuselage, and extends upward and rearward from the fuselage. A pair of left and right handles are attached to the upper end of the handle stay formed by this, and each handle is equipped with a side clutch lever capable of intermittently operating the power transmission path to the left and right wheels attached to the left and right sides of the aircraft. .

[0003] By operating the main clutch lever, a power transmission path to each drive unit provided in the body is cut off so that the body can be stopped.

[0004] Further, by operating the left and right side clutch levers, the power transmission path to the wheels on the same side as the operated side clutch levers is cut off, and the aircraft is stopped by stopping the wheels. It can be turned to the wheel side.

In addition, by operating both side clutch levers simultaneously, the left and right wheels can be stopped.

[0006]

[Problems to be solved by the invention] However, when both the left and right side clutch levers are simultaneously operated, the driving of the planting section or the like is stopped because both hands are closed. However, there is a problem that the main clutch lever cannot be operated.

That is, in a state where both the left and right side clutch levers are disengaged with both hands as described above, when one hand is released from the side clutch lever to operate the main clutch lever, the other hand operates the side clutch lever. Therefore, there is a risk that the aircraft may turn sharply, which is dangerous.

For this reason, a skilled worker operates the main clutch lever while the machine body is running, but it is still dangerous for an unskilled worker.

[0009]

Therefore, in the present invention, a main clutch operating portion capable of intermittently operating a power transmission path to each drive section is attached to the body, and the main body is extended upward and rearward from the body. Walking type rice planting with a pair of left and right handles attached to the upper end of the formed handle stay, and a side clutch operation part that can intermittently operate the power transmission path to the left and right wheels attached to the left and right sides of the fuselage on each handle In the machine, each side clutch operation unit is provided with a detection unit that detects a clutch disconnection operation of each operation unit, while a main clutch operation unit is provided with a clutch disconnection forcing unit that forcibly causes the operation unit to perform a clutch disconnection operation. The detecting means on the left and right sides is connected to the forcing means, and the means for forcibly disengaging the clutch is configured to operate based on the detection result of the clutch disengagement by both detecting parts. There is provided cents walk-rice transplanter according to claim.

The present invention is also characterized in that the left and right detection units are connected to the clutch disengagement forcing means via the response delay means.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

A shown in FIG. 1 is a walking type rice transplanter according to the present invention. The rice transplanter A has a prime mover unit 2 at the front of a fuselage a.
And a transmission section 3 is provided at the rear thereof. The upper portion of the prime mover section 2 and the transmission section 3 is covered with a bonnet 1, and a shaft case 4 protrudes right behind the lower rear surface of the transmission section 3. Bonnet 1
From the upper left and right side surfaces of the transmission portion 3 located below the lower end edge of the transmission portion 3, a substantially L-shaped left and right transmission shaft case 5,
5 are distracted.

At the rear end of the shaft case 4, a planting transmission case 6 is continuously provided, and at the planting transmission case 6, a base end of a handle stay 7 is continuously provided. Front and rear high and low seedlings that can be mounted on the upper end with handles 8, 8 that are formed to extend rearward and that are branched to the left and right sides, and that can mount a four-row seedling mat via the seedling mounting support frame 9 in the middle. The mounting table 10 is continuously provided. Numeral 30 denotes a seedling-planting mechanism linked to the planting mission case 6.

The front ends of the swing cases 11, 11 are connected to the left and right sides of the transmission section 3 in an interlocking manner.
The left and right wheels 12, 12 are connected to the rear end of 1 in an interlocking manner. 13 is center float, 14 is side float, 15
Is a sensor float.

The transmission section 3 is provided with a main clutch (not shown) capable of disconnecting a power transmission path to each drive section. The main clutch has a main clutch lever 20 as a main clutch operation section. The base end is interlocked, the tip of the lever 20 is extended rearward and upward from the rear wall of the bonnet 1, and the worker holding the tip grip 20 a of the lever 20 operating the handles 8, 8 It can be operated through the platform 10. 31 is a coil starter.

Left and right side clutch levers 8 and 8, respectively, serve as side clutch operating portions.
21 and 21 and each lever 21 and 21 is connected to the left and right side clutches (not shown)
2,22, and each side clutch lever 2
By operating the wheels 1, 21, the left and right side clutches are respectively disengaged, and the left and right wheels 12, 12 can be stopped.

In the above configuration, the gist of the present invention is that, as shown in FIGS. 2 and 3, each side clutch lever 21, 21 has a detecting portion 23 for detecting the clutch disengagement operation of each lever 21, 21. , And 23, respectively, while the main clutch lever 20 is provided with clutch disengagement forcing means 24 for forcibly disengaging each lever 20. The left and right detection units 23 and 23 are controlled by the forcible means 24 by the control unit 25. And the clutch disengagement forcing means 24 is operated based on the clutch disengagement detection result by the two detectors 23, 23.

The detection unit 23 employs a switch that is turned on when the side clutch lever 21 is disengaged.

A switch 24a is also provided for the clutch forcible disconnecting means 24.
The switch 24a forms an electric circuit K so that when both of the left and right detectors 23, 23 are turned on, the electric circuit K is turned on, and the main clutch is turned on by the ON operation of the switch 24a. The cutting operation is forcibly performed.

The control unit 25 is provided with a timer T as a response delay means, and the two timer detection units 23, 23 are turned on by the timer T to forcibly apply an electric signal after a lapse of a predetermined time (for example, one minute). Switch 24a of cutting means 24
To turn on the input switch 24a.

In FIG. 2, reference numeral 26 denotes a battery as a power supply.

The embodiment of the present invention is configured as described above. According to this embodiment, the following operation and effect are produced.

That is, when planting seedlings,
The seedling planting mechanism 30 is driven while gripping the handles 8, 8 and running the machine body a, so that the seedling blocks are cut and planted from the seedling mat placed on the seedling mounting table 10.

When the aircraft a is turned leftward or rightward in the field, the side clutch is operated by operating the side clutch lever 21 on the turning direction, and the side clutch is disengaged. The wheel 12 can be stopped to perform a smooth turning operation.

When stopping the traveling of the aircraft a,
When both the left and right side clutch levers 21 and 21 are simultaneously operated, the left and right wheels 12 and 12 are stopped, and the switch 24a of the clutch forcible disconnecting means 24 is turned on, so that the main clutch is forcibly disengaged. The power transmission path of the planting transmission case 6 is also cut, and the seedling plant 30 and the like can be stopped.

At this time, even if the side clutch levers 21 and 21 are simultaneously operated after passing through, the clutch forcible disengaging means 24 must be operated by the response delay means unless a predetermined time has elapsed.
Since the switch 24a is not turned on, the operator waits for the main clutch to be disengaged after a predetermined time, operates the main clutch lever 20, connects the main clutch, and continues the planting operation. Therefore, an unskilled worker can reliably perform the planting operation.

[0027]

According to the present invention, the following effects can be obtained.

That is, when both the left and right side clutch operating sections are simultaneously operated, the detecting sections provided in each operating section detect the clutch disengagement operation, and the clutch disengaging forcing means forcibly disengages the main clutch operating section. In order to operate, not only the left and right wheels but also all the driving units can be stopped, so that clutch operability can be improved and safety can be improved.

Further, when the left and right detection units are connected to the clutch disengagement unit via the response delay unit, the main clutch is instantaneously operated even when the left and right side clutch operation units are simultaneously operated. It is possible to prevent the clutch operating portion from performing the clutch disengagement operation, and it is possible to ensure good work efficiency.

[Brief description of the drawings]

FIG. 1 is a side view of a walking rice transplanter according to the present invention.

FIG. 2 is an explanatory plan view of the main part.

FIG. 3 is a control block diagram.

[Explanation of symbols]

 A walking rice transplanter a fuselage 8 handle 20 main clutch lever 21 side clutch lever 23 detection unit 24 forcible disconnection means 25 control unit

Claims (2)

(57) [Scope of request for utility model registration] 1. A main clutch operating part capable of intermittently operating a power transmission path to each drive unit is mounted on an airframe, and a pair of left and right handle stays is formed at the upper end of a handle stay formed by extending upward and rearward from the airframe. Attach the handles of each handle,
In a walk-behind rice transplanter equipped with a side clutch operation unit that can intermittently operate the power transmission path to the left and right wheels attached to the left and right sides of the aircraft, the clutch disengagement operation of each operation unit is detected at each side clutch operation unit The main clutch operating section is provided with clutch disengaging forcing means for forcibly disengaging the operating section, and the left and right detecting sections are connected to the forcing means. Characterized in that the clutch disengagement forcing means is operated based on a clutch disengagement detection result of the walking rice transplanter. 2. The walk-behind rice transplanter according to claim 1, wherein the left and right detection units are connected to the clutch disengagement forcing unit via a response delay unit.