JPH047689Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Field of industrial application The present invention relates to a drive device for a side-row fertilization device that is attached to a traveling type rice transplanter among rice transplanters.

(b) Prior Art Conventionally, it has been known that a traveling rice transplanter is equipped with a fertilizing device. For example, Akira Jitsukai
As in Publication No. 57-82111.

However, in this conventional technology, since the seedling platform drive case is located below, the power take-off part is located immediately to the side of the planting arm.
There was a problem in that the mud thrown off from the planting arm got on the power take-off part and the power transmission part, reducing durability and reducing the accuracy of the amount of fertilizer applied. Furthermore, since the fertilizer tank that constitutes the fertilizer application device did not match the position of the axle, there was a problem in that the center of gravity of the mobile rice transplanter changed depending on the amount of fertilizer in the fertilizer tank.

(c) Problems to be solved by the invention The purpose of the invention is to place the fertilization tank of the fertilization device on the bonnet near the center of gravity of the mobile rice transplanter, and to improve rice planting by changing the amount of fertilizer. This ensures that the center of gravity of the machine does not change, and when the fertilizer tank and feeding device are placed in this position, the driving force for the fertilizer device is transferred from the rotating shaft of the seedling stand drive case, which is the location where it is most easily extracted. This is what was extracted.

With these configurations, the fertilization device can be placed at approximately the same position as the center of gravity of the rice transplanter, and the drive device can also be configured compactly.

(d) Means for solving the problem The purpose of the present invention is as described above, and the configuration for achieving the purpose will be explained.

In the configuration in which the preliminary seedling platform support pipe 16 is supported on the seedling platform drive case 9 and the preliminary seedling platform 6 is supported on the preliminary seedling platform support pipe 16, the front side of the preliminary seedling platform 6 is At the same position, the fertilizing device composed of the fertilizing tank 1 and the feeding device is supported by the preliminary seedling support pipe 16, and the fertilizing tank 1 is positioned above the axle 2a of the running lug wheel 2, A drive take-out portion of the fertilizing device with a rotating shaft 28 protruding from the side of the upper seedling stand drive case 9 is provided.

(e) Embodiments and operations The purpose and structure of the present invention are as described above, and the structure of the present invention will be explained below based on the attached drawings.

Fig. 1 is a partial sectional view of the rear side of the fertilizing device drive unit according to the present invention, Fig. 2 is a partially sectional view of the rear side of the fertilizing device drive unit according to another embodiment, and Fig. 3 is a walk-behind rice transplanter with a fertilizing device. Figure 4 is a side view of the fertilizer applicator, Figure 5 is a diagram of the connection between the power take-off part and the drive part, Figure 6 is a side view of the power transmission to the one-way clutch, and Figure 7 is the detent. FIG. 3 is a side view of the one-way clutch.

First, let's explain the overall configuration from FIG. 3. The axle 2a of the running lug wheel 2 is supported by a swing case 2b and arranged on the left and right sides of the float 3,
It supports the entire aircraft. In order to cover the engine E and the transmission case, the bonnet 10 covers the fuselage from the front end to the rear end. Reference numeral 9 denotes a seedling platform drive case, and the seedling platform 4 is moved left and right by the left and right reciprocating motion caused by the rotation of the feed screw shaft 48 located inside the seedling platform drive case 9. In addition, a planting claw 5 is attached to the side of the lower case of the seedling platform drive case 9.
is positioned, and the tips of the planting claws 5 rotate in an elliptical trajectory to plant the seedlings. The fertilizing device is fixed to a preliminary seedling support pipe 16 that is a part of the preliminary seedling platform 6. The fertilization device includes a fertilization tank 1, a lower delivery case 8, an upper delivery case 7, a fertilization guide pipe 15, a groove plate 11, a fertilization guide plate 12, a soil plate 14, and the like.

Next, the support structure of the fertilizer application device will be explained with reference to FIGS. 1 and 4. A cover 9a is placed on the upper surface of the seedling platform drive case 9 to prevent water droplets from dripping from the preliminary seedlings placed on the preliminary seedling platform 6 and adversely affecting the inside of the seedling platform drive case 9. be. A spare seedling stand support pipe 16 is fixedly installed on the cover 9a, and a spare seedling stand 6 is further fixed to the spare seedling stand support pipe 16. A fertilizing device support rod 20 is horizontally fixed to the tip of this preliminary seedling stand support pipe 16.

The lower delivery case 8 is fixed by a fertilizer application device support rod 20. The upper feeding case 7 is placed on the upper part of the lower feeding case 8, and is fastened with a simple fastener.

A fertilizing guide pipe 15 is disposed between the lower end of the lower feeding case 8 and the fertilizing guide plate 12. 3 is a float, 11 is a groove plate, and 14 is a soil plate.

Next, the structure of the drive section in the fertilizer application device, which is the main part of the present invention, will be explained based on FIGS. 1 and 4 to 7.

The driving force is taken out from the rotating shaft 28 of the seedling stand drive case 9. The rotating shaft 28 is an input shaft of the seedling stand drive case 9, and the rotation of the rotating shaft 28 is controlled by the gear 3.
6. The feed screw shaft 4 of the seedling stand is decelerated by the gear 35.
8.

These gears 35, 36 and shafts 28, 48 are integrally constructed to form a gear unit. A crank arm 18 is fixed to an end of the rotating shaft 28, and a crank arm 13 is fixed to an end of the rotating shaft 19. A crank link 17 is connected between the crank arms 18 and 13.

The power transmission device of the present invention is constituted by this crank link 17. The rotation shaft 19 is pivotally supported by rotation shaft bearings 29 , 29 and supported by a fertilizer application device support rod 20 . Intermittent drive shafts 31 and 32 are located in the upper dispensing cases 7 and 7 of the left and right fertilizer application devices, respectively, in a state that projects in the left and right direction.
gears 38, 39 and drive shafts 43, 4 in the fertilizer applicator
4 gears 40 and 41 are in mesh with each other.

A connecting shaft 30 is interposed between the intermittent drive shafts 31 and 32, and the connecting shaft 30
The structure is such that the intermittent drive shafts 31 and 32 interlock with each other. A one-way clutch 24 is mounted on the connecting shaft 30.
A connecting rod 46 is provided between the arm 24a on the one-way clutch 24 and the arm 19a on the rotation shaft 19.

A detent one-way clutch 23 is installed on the connecting shaft 30, and a support 45 is installed between the detent one-way clutch 23 and the fertilizer application device support rod 20.

Therefore, when the crank arm 18 rotates as the rotating shaft 28 is driven, the crank link 17 converts the rotational motion into reciprocating motion, causing the rotating shaft 19 to reciprocate via the crank arm 13, and the arm 1
9a, the connecting rod 46, the arm 24a, and the one-way clutch 24 rotate. Further, the one-way clutch 24 rotates the connecting shaft 30, and the left and right intermittent drive shafts 31, 32 also rotate to drive the feeding devices in the left and right fertilizer applicators.

In addition, by pulling out the arbitrary row fixing pins 26 and 25, the unnecessary intermittent drive shaft 3 on the fertilizer application device side can be removed.
It is also possible to stop fertilization by stopping the fertilizers 1 and 32.

In addition to the above structure, as shown in Figure 2,
By attaching the one-way clutch 24 directly to the outer end of the intermittent drive shaft 31 on one side without equipping the rotation shaft 19 to take in power, it is possible to connect the other end of the intermittent drive shaft 31 to the other end of the fertilization device. It is also possible to have a structure in which the end of the intermittent drive shaft 32 is connected with the row stopper pin 25, and to have a simple structure in which only one of the fertilization devices is stopped by pulling out the row stopper pin 25.

(f) Effects of the invention The structure and operation of the invention are as described above, and the effects produced by the invention will be described below.

First, since the drive power extraction part of the fertilization device is provided on the side of the seedling stand drive case 9, when it is later attached as an attachment to a walk-behind rice transplanter, it is possible to draw power from the conventional planting claws 5. It's easier to put on and take off compared to what you used to take out.

Second, since the fertilizer tank 1 is located in front of the preliminary seedling platform 6 and above the axle 2a of the running lug wheel 2, even if the amount of fertilizer in the fertilizer tank 1 changes, the entire rice transplanter Since the center of gravity of the machine does not change, operator fatigue is reduced.

Thirdly, since the drive take-out part of the fertilization device with the rotating shaft 28 protruding from the side of the seedling stand drive case 9 above the planting claw 5 is provided, the drive take-out part is free from being blown away from the planting claw 5. Since the muddy soil does not adhere to the fertilizer, and the drive path to the feeding device can be constructed using only the crank link 17, durability can be improved and accuracy in the amount of fertilizer applied can be improved.

[Brief explanation of the drawing]

Fig. 1 is a partial sectional view of the rear side of the fertilizing device drive unit according to the present invention, Fig. 2 is a partially sectional view of the rear side of the fertilizing device drive unit according to another embodiment, and Fig. 3 is a walk-behind rice transplanter with a fertilizing device. Figure 4 is a side view of the fertilizer applicator, Figure 5 is a diagram of the connection between the power take-off part and intake part, Figure 6 is a side view of the power transmission to the one-way clutch, and Figure 7 is the detent. FIG. 3 is a side view of the one-way clutch. 2... Travel lug wheel, 2a... Axle, 5... Planting claw, 6... Spare seedling platform, 9... Seedling platform drive case, 10... Bonnet, 25, 26... Row retaining pin, 28... Rotating shaft, 30... Connection shaft, 31,
32... Intermittent drive shaft, 34... Gear unit.

Claims (1)

[Scope of utility model registration request] In the configuration in which the preliminary seedling platform support pipe 16 is supported on the seedling platform drive case 9 and the preliminary seedling platform 6 is supported on the preliminary seedling platform support pipe 16, the front side of the preliminary seedling platform 6 is At the same position, the fertilizing device composed of the fertilizing tank 1 and the feeding device is supported by the preliminary seedling support pipe 16, and the fertilizing tank 1 is positioned above the axle 2a of the running lug wheel 2, and A fertilizing device for a traveling type rice transplanter, characterized in that a driving take-out portion of the fertilizing device from which a rotating shaft 28 projects is provided on the side of the upper seedling platform drive case 9.