JPH0160207B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides the following features:
By making it possible to plant seedlings in so-called fractional rows,
In order to be able to plant seedlings by traveling to the edge of the rice field without any corners, a seedling planting device equipped with a plurality of seedling planting claws is provided on the traveling vehicle body, and in the middle of the transmission system to each of the seedling planting claws, The present invention relates to a rice transplanter equipped with a row clutch that independently stops driving a portion of the seedling planting claws.

The above-mentioned planting of seedlings in fractional rows is carried out near the edge of the field, prior to planting at the edge of the field, in order to avoid negative effects on the already planted seedlings due to mud pushing, etc. However, in the past, after finishing planting the fractional rows, when turning around at the headland to carry out the next planting process, people accidentally forgot to engage and operate the cut row clutch, resulting in the fractional rows being planted. The original advantages of the fractional row planting configuration were lost, such as when the plants were planted in rows and had to be manually planted later. Particularly when turning on headlands, in addition to steering operations, operations such as raising and lowering the seedling planting device from the ground, turning on and off the planting clutch, and putting in and out the marker are complicated, so it is difficult to turn the rice at the edge of the field. It was not uncommon for the plants to be planted with only a few rows left.

In view of the above-mentioned points, an object of the present invention is to provide a method for reliably avoiding forgetting to insert the cut-off individual row clutch after planting a fraction of the seedlings.
Moreover, the purpose is to make the configuration for that purpose simple and easy to obtain.

A characteristic configuration of the present invention is that, in the above-mentioned rice transplanter, a bullet is provided for urging the artificial operating tool of each row clutch to a clutch engaged position, and the operating tool is moved to a clutch disengaged position against the bullet. In addition to providing a locking tool for holding the vehicle, a mechanism is also provided for automatically releasing the locking between the locking tool and the operating tool in conjunction with the operation for turning the traveling vehicle body.

In other words, in order to plant a fraction of the seedlings and turn the aircraft around the headland in order to move on to the next traveling process,
For example, when an operation such as cutting the planting clutch or raising the seedling planting device is performed, the lock between the operating tool and the locking tool that was in the clutch cutting position is released, and the operating tool is moved by the bullet. When the clutch is moved to the engaged position, the disengaged clutch is automatically engaged.

Therefore, after completing the run for planting a fraction of the seedlings and turning around for the next process, the clutch for each row can be automatically switched from the cut state to the engaged state without any special operation. This makes it possible to reliably avoid the mistake of continuing to plant a fraction of the seedlings with each row clutch remaining disconnected even after turning.

In addition, by releasing the lock between the operating tool and the locking tool and operating the operating tool from the disengaged position of the clutch to the engaged position using a bullet, the locking tool and the elastic In addition to providing
For example, a simple structure that requires only a lock release operation mechanism consisting of a lock release tool and a wire that kinetically connects it to a planting clutch lever or a link mechanism can also be used to automatically engage each row clutch. It became popular and economically advantageous.

Hereinafter, embodiments of the present invention will be described in detail based on illustrative drawings.

An engine 3 is mounted on the front part of a running vehicle body having a pair of left and right front wheels 1, 1 and a pair of rear wheels 2, 2, as well as a steering handle 4 and a driver's seat 5.
and a seedling planting device 6 at the rear of the traveling vehicle body.
are connected to each other so that they can be raised and lowered by a link mechanism 8 that is driven by a hydraulic cylinder 7 and can be freely moved, and are configured to transmit power from the traveling vehicle body to the seedling planting device 6, thereby constructing a riding rice transplanter capable of planting four rows. There is.

The output of the engine 3 is input to the planting transmission case 10 via the rotating shaft 9, and as shown in FIG. Transmission shaft 13
a, 13b, and transmits power from one transmission shaft 13a via chain 14 to the seedling planting arm drive shaft 15a for two rows on the left side, and from the other transmission shaft 13b via chain 14. The driving force is transmitted to the seedling planting arm drive shaft 15b for two rows on the right side, and the driving force is transmitted to the four seedling planting claws 16. A respective clutch 17 or 18 is interposed between the chain type transmission mechanism 12 and both transmission shafts 13a, 13b, and a sliding clutch piece 17a or 18a of each clutch 17, 18 is provided with a respective one. A single lever-type manual operating tool 2 is attached to a sliding clutch operating shaft 20 having a pair of operating operating arms 19a or 19b.
1 and the operating tool 21 is located at the intermediate position (ON) between the left and right of the guide groove of the operating tool guide 22 shown in FIG. 3, the clutch pieces 17a and 18
a is engaged with the chain sprocket 12a by the spring 17b or 18b, so that both the respective clutches 17 and 18 are engaged together, and the operating tool 21 is moved to the one end position of the guide groove (L-OFF).
When the clutch is swung, only one operating arm 19a presses the clutch piece 17a to separate it from the sprocket 12a, and the left side clutch 1
In addition, adjust the operation tool 2 so that only 7 is turned off.
1 to the other end position (R-OFF) of the guide groove, the other operating arm 19b moves the clutch piece 1
The configuration is such that only the right side clutch 18 is disengaged by pressing only the right side clutch 18 so as to separate it from the sprocket 12a. Furthermore, the operating tool 2
1 is bent to engage the notch inner wall 22a or 22b of the operating tool guide 22, and the operating tool 21 is moved to the clutch disengaged position (L-OFF) or (R-OFF) against the spring 17b or 18b.
The seedling planting claws 16, 16 for the two rows on the right side or the two rows on the left side are then stopped to allow planting of so-called fractional seedlings.

As shown in FIG. 3, unlocking tools 23 for pushing out the operating tool 21 locked to the notch inner wall 22a or 22b from the notch are arranged at both ends of the guide groove, and are attached to the operating tool guide 22. The two lock release tools 23, 23 are attached to the rod 2 so as to be swingable.
4, and is urged by a spring 25 to a retracted position outside the notch on the opposite side of the guide groove, and the planting clutch 26 is connected to one of the unlocking tools 23 and the seedling planting device 6. The operation lever 27 of the planting clutch 2 is movably connected by a release wire 28, and both lock release tools 23, 23 are connected to the planting clutch 2.
The planting clutch 26 is interlocked with the planting clutch 26 so as to be operated as it is cut.
A mechanism that automatically releases the engagement between the operating tool 21 and the notch inner wall 22a or 22b so that the operating tool 21 is operated to the clutch engaged position (ON) by the spring 17b or 18b as the It consists of A.

FIG. 4 shows another embodiment of the release operation mechanism A, in which one of the lock release tools 23 and the link mechanism 8 are interlocked and connected by a release wire 29, and both lock release tools 23 are connected to the link mechanism 8. On the other hand, it is connected in motion so as to operate as the seedling planting device 6 is raised, and as the seedling pricing device 6 is raised,
The operating tool 21 is operated to the clutch engaged position (ON) by the spring 17b or 18b.
It is configured to automatically release the engagement between the operating tool 21 and the notch inner wall 22a or 22b.

The unlocking tool 23 consists of a main body 23a and an operating part 23b swingably connected to the main body 23a. The action portion 23b is brought into contact with the stopper portion 23c and the main body 23a.
Planting is performed so that the rocking relative to the main body 23a is prevented and the operating tool 21 can be pushed out, and after the operating tool 21 is operated to the clutch release position (L-OFF) or (R-OFF). clutch 26
Even if the entry operation or the lowering operation of the seedling planting device 6 is performed, the action portion 23b swings relative to the main body 23a against the spring 30 due to contact with the operating tool 21, bypassing the operating tool 21. The guide groove is configured so that it can be moved to the opposite side from the guide groove.

In place of the cutout inner walls 22a and 22b, releasable hooks or stoppers may be used.
These are collectively called locking tools 23a and 23b.

In order to automatically release the lock between the operating tool and the locking tool, the locking tool may be released based on a configuration that releases the locking tool, based on the detection of the amount of steering of the steering wheel, or based on the storage position of the line drawing marker. A configuration may be adopted in which the operation tool and the locking tool are unlocked in conjunction with the switching of the locking tools 23a, 23b and the operating tool 21. It is collectively referred to as mechanism A that automatically releases the lock.

The springs 17b, 18b can be changed to rubber or the like, and are collectively referred to as bullets 17b, 18b.

The present invention can also be applied to a walking rice transplanter.

[Brief explanation of drawings]

The drawings show an embodiment of the rice transplanter according to the present invention, and FIG. 1 is a side view of the riding rice transplanter, FIG. 2 is a sectional view of the planting mechanism, FIG. 3 is a schematic diagram of the automatic release operation mechanism, and FIG. The figure is a schematic diagram showing another embodiment of the automatic release operation mechanism. 6...Seedling planting device, 8...Link mechanism, 16...
... Seedling planting claw, 17, 18 ... Each row clutch, 17
b, 18b... ammunition, 21... operating tool, 22a,
22b...locking tool, 23...lock release tool, 26...
...Planting clutch, A...Release operation mechanism.

Claims (1)

[Scope of Claims] 1. A seedling planting device 6 equipped with a plurality of seedling planting claws 16 is provided on the traveling vehicle body, and the seedling planting claws 1
6... In the middle of the transmission system to each, the seedling planting claw 16...
The rice transplanter is equipped with individual row clutches 17 and 18 that independently drive and stop portions of the rice transplanter, and urges the manual operating tool 21 of each row clutch 17 and 18 to the clutch engaged position. Bullet machine 17b,
18b is provided, and the operating tool 21 is connected to the ammunition machine 17.
Locking tools 22a, 22b are provided to hold the clutch in the disengaged position against the clutch levers 22a, 18b.
22b and the operating tool 21. A rice transplanter characterized in that the rice transplanter is provided with a mechanism A that automatically releases the lock between the operating tool 21 and the operating tool 22b. 2 In configuring the release operation mechanism A, the lock release tool 23 of the locking tools 22a, 22b and the operating tool 21 is cut and operated with respect to the planting clutch 26 for the seedling planting device 6. The rice transplanter according to claim 1, wherein the rice transplanter is interlocked and connected to operate as the rice transplanter increases. 3 To configure the release operation mechanism A, the locking tools 22a, 22b and the locking release tool 23 of the operating tool 21 are connected to the link mechanism 8 that lifts and lowers the seedling planting device 6 relative to the traveling vehicle body. 2. The rice transplanter according to claim 1, wherein the rice transplanter is interlocked and connected to operate as the seedling planting device 6 is raised.