JPH0242083Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention has fewer articles than the number of installed articles.
By making it possible to plant seedlings in so-called fractional rows,
A seedling planting device equipped with a plurality of seedling planting claws is connected to the traveling vehicle body so as to be able to move up and down, and power is transmitted to each of the seedling planting claws so that seedlings can be planted by traveling all the way to the edge of the rice field. The present invention relates to a rice transplanter in which a row clutch is interposed in the system to independently drive and stop 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, one would accidentally forget 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.

Therefore, as a means to prevent forgetting to engage the clutch, there is a technique disclosed in Japanese Patent Application Laid-Open No. 12913/1983.

With this structure, in order to prevent forgetting to insert each row clutch in the cut state, the lifting lever of the seedling planting device and the operation lever of each row clutch are connected to the lifting lever of the seedling planting device, and the lifting lever of the seedling planting device is connected to the lifting lever of the seedling planting device. When operated to the upward side, the operating lever of each row clutch that is in the disengaged state is linked to operate it to the input operating position, or the operating lever of the main planting clutch and the operating lever of each row clutch are connected to the operating position of the main planting clutch. When the clutch operating lever is operated from the engaged position to the disengaged position, the operating lever of each clutch in the disengaged position is operated to the engaged position.

However, with a structure in which the levers are linked to each other, when operating each row clutch from the cut state to the engaged state, the seedling planting device lift lever linked to each row clutch lever or the main There is an inconvenience that the planting clutch operation lever becomes difficult to operate.

The purpose of the present invention is to prevent forgetting to engage the clutch, but also to ensure that the structure for this purpose does not adversely affect the operation of other levers.

The characteristic structure of this invention to achieve the above purpose is as follows:
An operating tool for the individual row clutch is provided on the back of the seedling stand of the seedling planting device, and an operating tool for each row clutch is provided on the traveling vehicle body and is in a cutting operation position when the seedling planting device is raised above a setting. The present invention is characterized in that an abutting and pressing member is provided for operating the clutch operating tool at the cutting operating position to the operating position by contacting the clutch operating tool, and its operation and effect are as follows.

In other words, when the seedling planting device is raised when the aircraft turns in order to plant a fraction of the seedlings and perform the final planting run, the operating tool for each row clutch in the cut state comes into pressure contact with the traveling vehicle body. In contact with the member,
The actuator of the respective clutch is automatically switched to the engaged position.

With this, it is possible to prevent forgetting to insert each row clutch in the cut state, and since the switching of each row clutch operating tool is by contact with the pressing contact member on the traveling vehicle body side, it is possible to prevent seedlings from being planted. There is an advantage that the lifting lever of the seedling planting device and the operating lever of the main planting clutch can be independently and easily operated without any adverse effect on the lifting lever of the device or the operating lever of the main planting clutch.

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

A pair of left and right front wheels 1, 1' and a rear wheel 2,
An engine 3 is mounted on the front part of a running vehicle body equipped with a steering wheel 4 and a driver's seat 5, and a hydraulic cylinder 6 is connected to the rear of the running vehicle body via a link mechanism 7. 6
The row seedling planting device 8 is interlocked and connected so as to be able to move up and down to form a riding type rice transplanter.

To drive the seedling planting device 8, as shown in FIG. 2, power from the engine 3 is input to the planting machine 11 via the planting clutch 9 and the transmission shaft 10, which are configured to stop at a fixed position. The inputted power is transmitted from the first transmission shaft 12 to the screw shaft 14 for horizontally moving the seedling stand 13 via a gear type transmission mechanism 15 for changing the number of seedling picking, and Transmission is transmitted from the shaft 12 to the second transmission shaft 16 via the first chain type transmission mechanism 17, and the second transmission shaft 1
6 to the crankshafts 19 connected to each two of the seedling planting claws 18 through a second chain type transmission mechanism 20. Second transmission shaft 16 and second chain type transmission mechanism 2
0... are interlocked and connected via each row clutch 21 biased on the entry side, for example, the drive of the seedling planting claws 18, 18 of the two rows on the right side or the two rows on the left side is stopped, and the so-called The structure is designed to allow seedlings to be planted in fractional rows. Although not shown, each of the row clutches 21 is configured to stop at a fixed position so that it can be cut only when the seedling planting claws 18 are located at a predetermined position above the rotation locus. be. The respective strip clutches 21... are connected to operating tools 23 via wires 22, and the operating tools 23...
Each of the operating tools 23 is provided on the support frame 24 of the seedling stand 13 so as to be able to swing up and down so as to be close to each other so as to be able to enter and operate by swinging downward and to cut by swinging upward. ...A string lever 25 is interposed between each of the wires 22...and the clutch 21...The operating tool 23 is stabilized in both the engaged state and the disengaged state by using the biasing force on the entry side of each. It is designed so that it can be maintained.

A stopper abutment pressing member 26 is extended rearward from a predetermined location at the rear of the traveling vehicle body, and as the seedling planting device 8 is driven upward when turning at the headland, the operating tool 23... The operating mechanism 27 is configured to contact only the object in the operating state, press it to a position beyond the dead center, and automatically switch to the entering operating state.

[Brief explanation of the drawing]

The drawings show an embodiment of the rice transplanter according to the present invention, in which Fig. 1 is an overall side view of the riding type rice transplanter, Fig. 2 is a schematic plan view showing the drive system of the seedling planting device, and Fig. 3 is the operating tool. FIG. 4 is a partially cutaway side view of the main part showing the mounting part, and FIG. 4 is a plan view of the main part. 8... Seedling planting device, 18... Seedling planting claw, 21...
...Each line clutch, 23...Each line clutch operating tool,
26...Abutment pressing member.

Claims (1)

[Scope of utility model registration request] A seedling planting device 8 equipped with a plurality of seedling planting claws 18 is connected to the traveling vehicle body so as to be movable up and down, and the seedling planting claws 18 are provided in the middle of the transmission system to each of the seedling planting claws 18. A rice transplanter is equipped with a respective row clutch 21 which independently drives and stops a portion of the respective row clutches 21, and the operating tool 2 of each row clutch 21 is interposed therein.
3... is provided on the back of the seedling stand 13 of the seedling planting device 8, and the seedling planting device 8 is provided on the traveling vehicle body.
a contact pressing member for operating the individual clutch operating tool 23 in the cutting operation position to the entering operation position by contacting the individual clutch operating tool 23 in the cutting operation position as the clutch rises above a setting; A rice transplanter equipped with 26.