JPH018093Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention provides a planting claw that plants the seedlings taken out from the seedling outlet in the field as it circulates up and down, and stops the driving of the planting claw only at a specific phase. This invention relates to a seedling planting device equipped with a fixed position stopping clutch mechanism.

In the above-mentioned seedling planting device, it is desirable to close the seedling outlet when not planting so as to prevent the accidental dropping of seedlings from the seedling outlet. By making effective use of this simple modification, we aim to be able to reliably close the seedling outlet when not planting.

The structure of the present invention is that, in the above-mentioned seedling planting device, the lid body that closes the seedling take-out port to prevent seedlings from falling is placed in a closed position when the planting claw is in the specific phase, and It is characterized in that it is attached to the planting claw so that it can move up and down integrally with the planting claw so that it can be switched to the open position when the planting claw is in the seedling removal phase.

Next, the effects of the feature configuration of the present invention will be described.

In other words, by focusing on the fact that the planting claw is stopped only at a specific phase by the action of the fixed position stop clutch mechanism, and by making effective use of this fact, the lid body that closes the seedling take-out port is connected to the planting claw. It is attached to the planting claw so that it can move up and down integrally with the planting claw so that it can be switched to the closed position when it is in a specific phase, and to the open position when the planting claw is in the seedling removal phase, so that the planting claw can be moved up and down. By stopping the seedling opening, you can reliably close the seedling outlet and prevent seedlings from falling without any special operations.Moreover, the structure for this purpose is simply attaching the lid to the planting claw. The present invention has resulted in a seedling planting device that has a simple structure and is even more convenient to use.

The embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 and 2, 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,
Engine 3 and transmission case 4, driver's seat 5
an inclined seedling platform 6 that moves back and forth horizontally with a constant stroke with six pine-shaped seedlings W placed side by side in the rear of the passenger vehicle body, which is located in front of the vehicle and at the front end of the vehicle; Six planting claws 7 take out one seedling from the lower end of each pine-shaped seedling W and plant it in the field as they circulate up and down, and are arranged side by side at appropriate intervals in the lateral direction. A seedling planting device 9 equipped with three floats 8 and the like is connected so as to be able to rise and fall 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 lifting link 10a. , 10b are provided so as to be able to be operated up and down with respect to the vehicle body, and the four seedlings are successively planted as the vehicle advances, and in order to maintain a constant planting depth, and In order to avoid contact of the seedling planting device 9 with the ground when traveling on a headland or on a road, the seedling planting device 9 is configured to be able to be raised and lowered relative to the vehicle body.

To drive the seedling planting device 9, as shown in FIG. The input shaft 14 of the transmission case 13 for driving the device is interlocked and connected via a transmission shaft 15 with a universal joint that allows the seedling planting device 9 to move up and down. A planting clutch 16 that intermittents the drive of
is provided. A sliding shaft 17 for driving a seedling stand is attached to the transmission case 13 for driving the planting device.
are penetrated and supported so as to be slid with a constant stroke, and the claw drive transmission shaft 18 and three drive shafts 19 for two adjacent planting claws 7 each are interlocked. Three chains 20 to be connected are provided, and each chain 20
A fixed position stop clutch mechanism 22 is provided as described below to stop the driving of each input sprocket 21 individually only when the planting claws 7 are positioned at a specific phase immediately after taking out the seedlings. 7 and the seedling stand 6 can be turned on and off all at once, and in addition, unnecessary driving of the claws 17 can be stopped when working at the edge of a ridge.

As shown in FIGS. 4 and 5, the fixed position stop clutch mechanism 22 is configured such that the input sprocket 21 is freely rotatably supported on the transmission shaft 18, and the input sprocket 21 is slid to the side of the input sprocket 21 to engage and disengage. A movable clutch piece 24 spline-connected to the transmission shaft 18 is provided with an occlusal protrusion 23,
The input sprocket 21 is configured to be able to be driven on and off. A swing type locking piece 25 that locks and moves the movable clutch piece 24 elastically biased toward the clutch engagement side toward the clutch disengagement side is attached to the rotating shaft 26.
A disk-shaped member 28 is attached to the input sprocket so as to be integrally rotatable with the input sprocket, and also controls the swinging arm 27 connected to the locking piece 25 so as to prevent the locking piece 25 from moving toward the clutch disengagement side. 21 so as to rotate integrally with the disc-shaped member 2.
8 is formed with a notch 29 into which the swinging arm 27 is engaged when the planting claw 7 is in the specific phase, and the input sprocket 21 rotates once with the circulation of the planting claw 7. The drive is configured so that it can be stopped only when the planting claws 7 reach a specific phase.

Further, a clutch lever 30 for each of the fixed position stop clutch mechanisms 22 and an arm 26a attached to the rotating shaft 26 are interlocked and connected via a release wire 31, and the clutch lever 30 is locked and held at the clutch release position. A locking frame 32 is provided.

The mounting structure of the planting claw 7 will be described in detail.
As shown in FIG. 6, a pawl support case 35 is supported across a crank arm 33 and a swing arm 34 that are attached to the pawl drive shaft 19 so as to rotate integrally therewith,
The planting claws 7 are attached to the claw support case 35 in a state where they are clamped by presser fittings 36 that are bolted to the claw support case 35. However, numeral 37 in the figure is a seedling pusher that operates in a protrusive manner to remove the seedling from the claw 7 when the claw 7 reaches near the bottom dead center, and is attached to the claw support case 35 so as to be driven in and out. There is.

As shown in FIGS. 6 and 7, a seedling take-out port 39 formed in a notch in a seedling sliding frame 38 horizontally disposed along the lower end of the seedling platform 6 is closed to prevent seedlings from falling. A lid body 36a is integrally formed with the claw holding metal fitting 36. In other words, the lid body 36a moves up and down integrally with the planting claws 7 in a closed state when the planting claws 7 are in a specific phase and in an open state when the planting claws 7 are in the seedling removal phase. As a result,
When the planting claws 7 are stopped at a specific phase, the pine-shaped seedlings W are prevented from falling into the seedling outlet 39 due to the sliding of the seedling platform 6 and being deformed and damaged.

Upper and lower lifting links 10 for attaching the seedling planting device
a, 10b are attached to the vehicle body so as to be able to swing laterally, and as shown in FIG. Supporting, holding and seedling planting device 9
The system automatically prevents the plants from coming too close to the ridges, while still allowing planting work to be carried out at the edge of the ridges.

In carrying out the present invention, a lid body for closing the seedling extraction port 39 may be formed separately from the claw holding metal fittings, and the lid body may be made of an elastic material such as rubber.

Further, the present invention can be applied to various types of seedling planting devices, such as one in which a belt is provided to convey seedlings to be planted toward the planting claws 7 to supply seedlings.

[Brief explanation of the drawing]

Fig. 1 is a side view of the riding rice transplanter, Fig. 2 is a plan view of the machine, Fig. 3 is a schematic plan view showing the transmission system, Fig. 4 is a cross-sectional plan view of the fixed position stop clutch mechanism, Fig. 5 6 is a side view of the clutch mechanism, FIG. 6 is a side view of the planting claw attachment part, and FIG. 7 is a cutaway plan view showing the seedling extraction port in a closed state. 7... Planting claw, 22... Fixed position stop clutch mechanism, 36a... Lid body, 39... Seedling extraction port.

Claims (1)

[Claims for Utility Model Registration] A planting claw 7 is provided to plant the seedlings taken out from the seedling take-out port 39 in the field as it circulates up and down, and the driving of the planting claw 7 is stopped only at a specific phase. The seedling planting device is equipped with a clutch mechanism 22 that stops the seedlings in a fixed position, and the lid body 36 that closes the seedling take-out port 39 to prevent the seedlings from falling is set in the closed position when the planting claw 7 is in the specific phase. A seedling planting device characterized in that the seedling planting device is attached to the planting claw 7 so as to be able to move up and down integrally with the planting claw 7 so that the planting claw 7 can be switched to an open position when the planting claw 7 is in the seedling removal phase. The seedling planting device according to claim 1, wherein the lid body 36 is made of an elastic material.