JPS642567Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention divides the drive of a plurality of seedling planting mechanisms into a plurality of groups and is provided with a transmission clutch that can be operated intermittently for each group. The present invention relates to a rice transplanter equipped with a plurality of drug delivery devices for supplying drugs to planted seedlings.

The above-mentioned rice transplanter is designed to be able to efficiently supply chemicals such as fertilizers and herbicides at the same time as planting seedlings. By dividing the mechanism into groups and providing transmission clutches that can be operated intermittently for each group, it is possible to arbitrarily drive only the required seedling planting mechanism group during ridge work, etc. However, the structure for driving each drug delivery device had the following disadvantages.

In other words, conventionally, a power transmission clutch that separately connects and disconnects the drive of each drug delivery device is provided separately from a power transmission clutch for each seedling planting mechanism, but in this case, a dedicated power transmission clutch for each drug delivery device is provided. In addition, the overall structure tends to be expensive and complicated, and it is troublesome to operate the transmission clutch for each drug delivery device in response to the operation of the transmission clutch for each seedling planting mechanism. , it is easy to cause erroneous operation, for example, the medicine delivery device corresponding to the seedling planting mechanism that is stopped is driven, and the medicine is wasted, or on the contrary, it is driven. There is an inconvenience in that the driving of the drug delivery tool corresponding to the seedling planting mechanism is stopped, making it impossible to supply the desired drug.

The present invention was developed in view of the above-mentioned circumstances, and aims to simplify the drive structure of the drug delivery device through rational modification, and to appropriately control the drive on/off operation of the drug delivery device. The aim is to make it easy to carry out.

Embodiments of the present invention will be described in detail below based on illustrative drawings.

As shown in FIG. 1, it is equipped with a pair of left and right front wheels 1, 1 that can be driven and rotated and whose direction can be changed, and a pair of left and right rear wheels 2, 2 that can be driven and rotated, and an engine 3.
The transmission case 4 is placed in front of the driver's seat 5 and at the front end of the vehicle body, and four pine-shaped seedlings W are placed side by side in a constant stroke. An inclined seedling platform 6 that moves back and forth horizontally, four seedling planting mechanisms 7 that take out and plant one seedling from the lower end of each pine-like seedling W, and are arranged side by side at appropriate intervals in the horizontal direction. A seedling planting device 9 equipped with three floats 8 and the like is connected to be movable up and down via a pair of upper and lower lifting links 10a and 10b, and a hydraulic cylinder 11 for lifting and lowering the seedling planting device is connected to the seedling planting device 9 for raising and lowering the seedling planting device. The link 10b is provided in a state in which it can be swung up and down relative to the vehicle body, and
The structure is such that four rows of seedlings are planted sequentially as the aircraft advances, and in order to maintain a constant planting depth, the seedling planting device 9 is not in contact with the ground when traveling on headlands or on roads. In order to avoid this, the seedling planting device 9 is configured to be able to be moved up and down relative to the vehicle body.

As shown in FIGS. 2 and 3, the seedling planting mechanism 7 includes a planting mechanism case 12.
4 of the movable case 15 is supported in a vertically cyclically operated state by a swing arm 13 that is pivotally supported to be able to swing back and forth, and a crank arm 14 that is rotatably supported by the planting mission case 12. A planting nail 1 is provided in each of the movable cases 15...
6 is attached, and a seedling pusher 17 is attached which is activated to protrude every time the planting claw 16 reaches near the bottom dead center. The structure is designed so that they can be planted in sequence as they are released.

In addition, one end of the chain 18 that drives each of the crank arms 14 is connected to the planting transmission case 1.
2, a movable clutch piece 21 is wound around a sprocket 20 freely rotatably supported on the drive rotation horizontal shaft 19 of the horizontal support, and is removably engaged with the drive sprocket 20.
horizontal shaft 19 in a state where a... is elastically biased toward the engagement side.
spline connection to each movable clutch piece 21a...
A stopper 22 is provided which prevents the planting claws 16a from coming into contact with each other except in a phase near the top dead center, and the swinging operation tool 23 of each movable clutch piece 21a... is provided. is pivotally supported on the frame of the seedling planting device 9, and a swinging arm 23a that locks and moves each movable clutch piece 21a...
... are provided in a wire-linked state, and furthermore, a locking frame 24 is provided for locking and holding each of the operating levers 23 at the clutch release operation position.
A power transmission clutch 25 is constructed which can individually operate the drive of each seedling planting mechanism 7 on and off.

As shown in FIGS. 1 and 2, four tanks 26 are provided to store powdered chemicals such as fertilizers and herbicides, and the chemicals from each tank 26 are transferred to each seedling planting mechanism 7.
Pipes 27 are provided to guide the planted seedlings to the side of the field in each of the tanks 26, and rotating rolls 28 are provided to send the chemicals to the pipes 27 in each tank 26.
... is provided, and a one-way rotation clutch 2 is provided so that the four roll drive swing arms 29 are rotated by the forward movement of the four roll drive swing arms 29 with respect to each of the rolls 28...
9a, and in a state in which they are locked and connected to each of the claw driving swinging arms 13 so that they integrally swing back and forth when they swing back and forth. It is constructed so that it can be installed, installed, and simultaneously perform seedling planting work and drug supply work, and
The rotation rolls 28 are configured so that their driving is intermittent, integrally with the intermittent driving of the seedling planting mechanism 7, which plants the target seedlings to which the medicine is to be supplied.

Further, each tank 26 is provided with a drug storage amount detection sensor 30 that is energized and oscillated when the drug stored in the tank falls below a certain amount, and a sub-tank for storing the drug is installed in the awning 36 attached to the vehicle body. 31
A flexible guide pipe 32 is provided, which guides the medicine from each sub-tank 31 into the tank 26.
. . . and rotating rolls 33 for sending medicine to the pipes 32. Each tank 26...
When the drug in the tank falls below a certain amount, the sub-tank 31...
The device is configured to automatically supply drugs from the device.

Although the present invention may be carried out without providing the sub-tank 31, it is more convenient to provide the sub-tank 31 as it allows the drug supply work to be carried out continuously over a long period of time. be. When the sub-tanks 31 are provided, their mounting positions can be changed in various ways.

Furthermore, in the case of the embodiment, the transmission clutches 25 are provided such that the drive of the four seedling planting mechanisms 7 is divided into two groups, left and right, and can be operated intermittently for each group. , the plurality of seedling planting mechanisms 7... may be divided into a plurality of groups and provided in a condition that they can be operated intermittently for each group.

In addition, as a medicine to be supplied to the planted seedlings,
In addition to fertilizers, various other substances such as herbicides and insect repellents can be used, and in addition to powdered substances, liquid substances may also be supplied. The drug delivery device 28... includes the properties of the drug to be supplied;
Moreover, it can be changed in various ways depending on the supply amount per unit time, etc.

Further, the mechanical interlocking mechanisms 29 and 29a that link the drug delivery tool 28 to the seedling planting mechanism group may be variously modified depending on the structure of the seedling planting mechanism 7, the configuration of the drug delivery tool 28, and the like.

In summary, the present invention, in the rice transplanter mentioned above,
Each of the drug delivery tools 28... is connected to a seedling planting mechanism group to which the target seedling to which the drug is to be supplied is planted among the plurality of seedling planting mechanism groups,
It is characterized in that the drive is interlocked via mechanical interlocking mechanisms 29, 29a so that the drive is interrupted and interrupted integrally.

In other words, since there is no need to provide a special transmission clutch for intermittent driving of each drug delivery device 28, the drive structure of each drug delivery device 28 can be simplified, and each seedling planting mechanism By simply turning on and off the transmission clutches 25 for the seedling planting mechanisms 7 that are being driven, the drug delivery tools 28 for the seedling planting mechanisms 7 that are being driven are brought into the driving state and for the seedling planting mechanisms 7 that are not being driven. Since the drug delivery devices 28 for each drug delivery device 28 can be appropriately switched to the drive stop state, the drive operation for each drug delivery device 28 can be appropriately and easily performed, thereby avoiding the above-mentioned inconveniences. This problem has been solved, and a rice transplanter that can be used more conveniently has been obtained.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the rice transplanter according to the present invention, and FIG. 1 is a side view of a riding type rice transplanter, FIG. 2 is a partially cutaway side view of the seedling planting mechanism attachment part, and FIG. It is a partially cutaway plan view of the same part. 7... Seedling planting mechanism, 25... Transmission clutch, 2
8...Drug delivery device, 29, 29a...Mechanical interlocking mechanism.

Claims (1)

[Scope of utility model registration request] Transmission clutches 25 which can be operated intermittently to divide the drive of a plurality of seedling planting mechanisms 7 into a plurality of groups are provided, and the seedlings planted by each of the seedling planting mechanisms 7 are treated with chemicals. The rice transplanter is equipped with a plurality of drug delivery tools 28 for supplying the drug, and each of the drug delivery tools 28 is connected to the target seedlings to which the drug is supplied by one of the plurality of seedling planting mechanism groups. A rice transplanter characterized in that a group of seedling planting mechanisms for planting seedlings is linked via mechanical interlocking mechanisms 29, 29a in such a manner that the driving of the seedling planting mechanism group is integrally interrupted and interrupted.