JPH06284807A - Seedling supplying device in seedling planting machine - Google Patents

Abstract

PURPOSE:To receive auxiliary seedlings on an auxiliary seedling catching base on a seedling receiving frame by raising a seedling planting device from a body, passing the seedling receiving frame of a seedling placing base through the comb-shaped auxiliary seedling catching base. CONSTITUTION:An auxiliary seedling catching base 6 to place auxiliary seedlings A is set at a position wherein a seedling receiving frame 2 part is crossed and passed through the auxiliary seedling catching base during a rising stroke of a seedling planting device 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling replenishing device for a seedling planting machine.

[0002]

PRIOR ART AND PROBLEM TO BE SOLVED BY THE INVENTION A comb-shaped portion of an auxiliary seedling receiving table on which an auxiliary seedling is placed is lowered with respect to a comb-shaped portion formed at a tip end portion of a seedling mounting table of a seedling planting device. In the configuration in which the auxiliary seedlings are received by the seedling mounting table side by the intersection of both comb-shaped portions of the seedling mounting table and the auxiliary seedling receiving table (JP-A-51
No. 22517), a special lift device for raising and lowering the auxiliary seedling support is required in addition to the lift device for raising and lowering the seedling planting device with respect to the vehicle body. Therefore, the configuration, operation, etc. are complicated.

[0003]

The present invention is directed to a seedling planting device 1 for separating and planting seedlings at a fixed position, and a mat-like seedling on which the seedlings are planted while reciprocating in a left-right direction at regular intervals. Device 1
A seedling planting device 4 including a seedling stand 3 having a comb-shaped seedling receiving bar 2 at the upper end of the slope should be provided so as to be movable up and down with respect to the vehicle body 5 and supplied to the seedling planting device 4. The auxiliary seedling receiving table 6 on which the auxiliary seedling A is placed is provided at a position where the auxiliary seedling receiving tray 6 crosses in the ascending stroke of the seedling receiving tray 2 so that the auxiliary seedling A on the auxiliary seedling receiving tray 6 is received by the seedling receiving tray 2. The seedling replenishing device for the seedling planting machine will be used.

[0004]

[Operation and effect of the invention] The seedling planting work is carried out with the mat-shaped seedlings placed on the seedling placing table 3 and the auxiliary seedling receiving table 6, and the seedlings on the seedling placing table 3 are placed on this seedling placing table 3 It is supplied to the seedling planting device 1 side at the lower end by the left-right reciprocating movement and the vertical feeding of seedlings, and is planted on the soil surface by the seedling separating and planting action of this seedling planting device 1.

When the number of seedlings on the seedling placing table 3 is reduced by the seedling planting action, the seedling planting is temporarily stopped and the seedling planting device 3 is raised. At this time, as the seedling placing table 3 rises, the comb-shaped seedling receiving bar 2 at the tip portion moves upward while intersecting with the auxiliary seedling receiving stand 6, so that the auxiliary seedling A placed on the auxiliary seedling receiving stand 6 is moved. However, it will be scooped up on the upper surface of the seedling receiving bar 2, and this seedling will be
Supplied to the seedling stand 3.

As described above, since the seedling receiving bar 2 of the seedling mounting table 3 is raised to receive the auxiliary seedling A of the auxiliary seedling receiving table 6 which intersects on the way, the seedling planting device 4 is installed on the vehicle body 5. This can be easily implemented in a configuration form using a so-called work machine lift device that raises the attached work position to the non-work position, and the configuration can be simplified.

[0007]

1 and 2, a tractor vehicle body 5 has a front wheel 8 (see FIG. 5) and a rear wheel 9 which can be steered by a steering wheel 7 and is mounted below a cockpit 10 of an engine. A four-wheel drive traveling mode in which the seedling planting apparatus 4 is vertically moved is connected to the rear end of the vehicle body 5 by an elevating link 11 in the form of a parallel link mechanism.
Reference numeral 12 denotes a hydraulically expandable / contractible lift cylinder, which raises and lowers the raising and lowering link 11 with respect to the vehicle body 5 within a certain range to lower the seedling planting device 4 to a seedling planting work position, and the seedling receiving bar 2 at the upper end of the seedling mounting table 3.
Is set in a region to be raised so that it is higher than the auxiliary seedling stand 6.

The seedling planting device 4 has a float 14 below the seedling planting machine 13 connected to the rear end of the elevating link 11 so that the soil surface at the seedling planting position can be leveled. Further, the seedling mounting table 3 is provided on the seedling planting machine 13 so as to be reciprocally movable left and right over a certain range by a lead cam or the like, and the upper end portion is inclined forward and upward so as to face the front cockpit 10 side. The rear lower end of the seedling mounting table 3 is guided by a seedling guide frame 15 fixed to the seedling planting machine body 13. The seedling planting device 1 that acts as a seedling planting plant using the seedling take-out port formed in the seedling guide frame 15 as the working area is
It is provided at the rear of the. These float 14, seedling stand 3,
The seedling planting device 1 is arranged in a multi-row planting form in the lateral direction.

A comb-shaped seedling receiving bar 2 whose upper end is a free end is fixed to the upper end of the seedling mounting table 3 along the upward extension direction.
Or, the mat-shaped seedlings received on the seedling receiving bars 2 can be slid on the corresponding upper surface of each seedling mounting table 3 and supplied. The auxiliary seedling stand 6 is integrated on the vehicle body 5 side,
It is horizontally supported by a supporting frame 17 above the control floor on the rear side of the cockpit 5 and is formed in a comb shape having a rear end as a free end, and is set at a relative position capable of intersecting with the raising / lowering stroke of the seedling receiving bar 2. The relational position where the lateral movement of the seedling placing table 3 can be stopped and raised and lowered is a position where the comb-shaped auxiliary seedling receiving table 6 and the seedling receiving bar 2 are different from each other and do not interfere with each other.

Reference numeral 18 denotes a seedling mounting plate for picking up the mat-shaped auxiliary seedlings A grown from the seedling raising box and placing them on the upper surface of the seedling receiving bar 2 and having a handle portion 19 at one end. The auxiliary seedlings A are received by the seedling placing plates 18 one by one, placed on the upper surface of the seedling receiving bar 2, and faced to the respective seedling placing stands 3 in the multi-row planting form. When the number of seedlings on each seedling mounting table 3 decreases during the seedling planting work, the seedling planting work is temporarily stopped, and the lift cylinder 12 raises the elevating link 11. When the seedling receiving device 2 rises up through the gap between the auxiliary seedling receiving trays 6 due to the raising of the seedling planting device 4, the auxiliary seedling receiving trays 6
The mat-shaped bottom surface of the auxiliary seedling A on the upper surface is received by the upper surface of the seedling receiving bar 2 and rises, and is automatically slid along the inclined surface of the seedling receiving bar 2 or supplied to the seedling mounting table 3 by operating the seedling mounting plate 18 or the like. To be done.

After the seedlings are supplied to the seedling mounts 3 in this manner, the lift cylinders 12 are shortened to lower the seedling planting device 4 to the seedling planting work position where the float 14 is in contact with the ground. After the seedlings on the upper surface of the seedling receiving bar 2 are supplied to the seedling mounting table 3 side, even if the seedling mounting plate 18 is left, when the seedling receiving bar 2 descends through the gap between the auxiliary seedling receiving tables 6, It is received on the upper surface of the auxiliary seedling stand 6.

The lower surface of the handle portion 19 of the seedling mounting plate 18 is in a relationship in which the tip of the seedling receiving bar 2 can be engaged, and when the seedling mounting plate 18 is scooped up by the seedling receiving bar 2, Even if the auxiliary seedling on the upper surface slips off, the seedling plate 18 does not slide until it is locked. Further, only the mat-shaped auxiliary seedling A may be directly placed on the auxiliary seedling stand 6 without using such a seedling mounting plate 18.

In FIG. 3, the difference from the above example is that the inclination angle is changed abruptly during the upward movement of the seedling receiving bar 2. There is a hydraulic lever 20 beside the cockpit 10. By operating the hydraulic lever 20 to the planting position B, the turning position C, and the seedling supply position D, the control valve in the hydraulic circuit of the lift cylinder 12 is operated. The seedling planting device 4 can be moved up and down to the planting position B1, the turning position C1, and the seedling supplying position D1, respectively.

The lift link 11 that is lifted and lowered by the lift cylinder 12 is provided with an inclination regulating link 21 and a floating elongated hole 22 in the upper lift link 11. A rear end portion of the tilt regulating link 21 is pivotally supported on the seedling planting machine body 13 so as to be vertically rotatable, and a front end portion thereof has a locking pin 23 which can be slidably contacted with a lower surface of the upper side lifting link 11. An engaging portion 25 that can be engaged with the engaging pin 24 at the intermediate portion of the lower lifting link 11 is formed in the middle portion. Reference numeral 26 is a link pin on the seedling planting machine 13 side that engages with the elongated hole 22.

When the seedling planting device 4 is at the planting position B1,
The float 14 is grounded, and the tilt regulating link 21 is supported on the locking pin 24. The link pin 26 of the floating elongated hole 22 is located at the rear end. When the hydraulic lever 20 is operated to the turning position C during the seedling planting work, the seedling planting work is stopped, and the lift link 12 is extended to rotate the lifting link 11 upward. In the middle of this, the engaging portion 2 of the tilt regulating link 21
5 is engaged with the locking pin 24, and the link pin 26 is pulled toward the front end side of the floating long hole 22, the rising posture of the seedling planting device 4 is changed, and the postures of the seedling stand 3 and the seedling receiving bar 2 are changed. Is a sloping slope, and the turning position C approaches the lower surface of the auxiliary seedling stand 6
It becomes 1. That is, at the turning position C1, the seedling receiving bar 2 and the like do not move upward and the hydraulic lever 20 is moved to the seedling planting position B.
When returned to, the seedling receiving bar 2 also descends to the seedling planting position B1.

When the hydraulic lever 20 is operated to the seedling supply position D, the seedling planting device 4 which has once been raised to the turning position C1 as described above is further raised, so that the seedling receiving bar 2 is replaced by the auxiliary seedling receiving stand 6
Auxiliary seedling A placed on this upper surface through the space between
Scoop up to ascend, and at this time, the tilt regulating link 2
Since 1 is pushed up by the lower-side lifting link 11 of the locking pin 23 at the tip, the engaging portion 25 is disengaged from the locking pin 24, and the seedling planting device 4 is automatically rotated backward by the amount of the looseness of the long hole 22. By being moved, the seedling receiving bar 2 is returned to the steep slope together with the seedling mounting table 3. By the vibration at this time, the auxiliary seedling A scooped on the seedling receiving bar 2 is automatically supplied to the seedling mounting table 3 side.

In FIG. 4, the difference from the above example is that the tilting link 21 and the like in the elevating link 11 are not provided, and the hydraulic lever 20 is operated to elevate and lower the seedling planting device 4. The configuration is such that the attaching position B1 can be switched to a turning position C1 that approaches and stops below the auxiliary seedling pedestal 6 and a seedling supply position D1 that passes through the auxiliary seedling pedestal 6 upward and rises.

5 and 6 are different from the above example in that
An auxiliary seedling mounting device for mounting an auxiliary seedling on the auxiliary seedling receiving stand 6 is provided. This auxiliary seedling mounting device is a front part of the vehicle body 5 on one side of the roof cabin 27, and a support 28 that rotates in the front-rear direction, and an arm that rotates in the up-down direction or the front-rear direction with respect to the upper end of the support 28. 29, and a hanger 30 that hangs down from the tip of the arm 29. The column 28 is pivoted back and forth around the hinge 32 by the hydraulic cylinder 31, and the arm 29 is pivoted back and forth around the hinge 36 on the column 28 by the hydraulic cylinder 33 and the pinions 34 and 35. . The pinion 34 is on the hinge 36 axis of the arm 29 and is integral with the arm 29. The pinion 34 meshes with a pinion 35 supported on the column 28, and a pinion arm 37 integral with the pinion 35 is attached to the arm 29. Hydraulic cylinder 3 provided between
By rotating the arm 29 by expansion and contraction of the arm 3, the arm 29 can be rotated back and forth and up and down with respect to the support column 28, and the position, height, etc. of the hanger 30 that hangs around the hinge 38 at the tip of the arm 29 can be controlled. .

This hanger 30 is a substantially horizontal seedling receiving plate 3.
It is possible to pass the auxiliary seedlings 9 to the auxiliary seedling pedestal 6 through the gap portion of the auxiliary seedling pedestal 6 from the upper side to the lower side. Immediately after transferring the auxiliary seedling A to the auxiliary seedling receiving stand 6, the hanger 30 is moved to the rear so that the hanger 30 bypasses the rear side of the auxiliary seedling receiving stand 6 and is lifted up. Controlled by 32. Therefore, the auxiliary seedling A can be placed on the hanger 30 positioned in front of the vehicle body 5 from the edge of the ridge or on the road, moved to the rear of the cockpit 10, and mounted on the auxiliary seedling stand 6. it can.

In the illustrated example, the auxiliary seedling stand 6 is constructed so that it can be tilted toward the seedling stand 3 side by a hydraulic cylinder 40, and is supported on a column 41 around a lateral hinge 42. Further, when the auxiliary seedling receiving plate 39 has a plate shape having a width for mounting the auxiliary seedlings A, the comb-shaped gap portion is also wide, and therefore, the auxiliary seedlings A can be mounted. 1 and 2 having a width wider than the comb-like spacing portion of the auxiliary seedling stand 6.
It is preferable to use a seedling plate 18 such as

[Brief description of drawings]

FIG. 1 is a side view of a part of a seedling planting machine.

FIG. 2 is a plan view of a part thereof.

FIG. 3 is a side view showing another embodiment.

FIG. 4 is a side view showing another embodiment.

FIG. 5 is a side view showing another embodiment.

FIG. 6 is a plan view of a part thereof.

[Explanation of symbols]

 1 Seedling planting device 2 Seedling receiving bar 3 Seedling mounting table 4 Seedling planting device 5 Vehicle body 6 Seedling receiving table A Auxiliary seedling

Claims (1)

[Claims] 1. A seedling planting device 1 for separating and planting seedlings at a fixed position, and a mat-shaped seedling placed on the seedling planting device 1 while reciprocating in a left-right direction at a constant interval while supplying and inclining the seedlings. A seedling planting device 4 composed of a seedling placing table 3 having a comb-shaped seedling receiving bar 2 at its upper end is provided so as to be able to move up and down with respect to a vehicle body 5, and an auxiliary seedling A to be supplied to this seedling planting device 4 is placed. The auxiliary seedling receiving stand 6 is provided at a position where the auxiliary receiving stand 6 crosses in the ascending stroke of the seedling receiving bar 2, and the auxiliary seedling A on the auxiliary seedling receiving stand 6 is received by the seedling receiving bar 2. Supply device.