JPH0530821A - Seedling planting device - Google Patents

Abstract

PURPOSE:To prevent seedlings from being damaged by sliding resistance by reversely sending a given amount of seedlings by a seedlings longitudinally transporting device having each row clutch set in an engaged state at planting row. CONSTITUTION:When each clutch 12 is operated into a disengaged state, a given amount of seedlings separated from a sliding rail 3 set to prevent planting seedlings from slipping in the opposite direction to a seedling removing inlet 4 side and falling are reversely sent. The seedlings are surely prevented from slipping and falling.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of plantings in which seedlings are placed one by one from the seedling outlet at the lower end of a seedling stand in an inclined posture in which seedlings are placed and reciprocally moved laterally. With a mechanism, on the seedling placement surface of the seedling stand, provided with a seedling vertical feeding device that feeds the placed seedling toward the seedling take-out port by a predetermined amount at the lateral movement stroke end, and,
The present invention relates to a seedling planting device including each row clutch that stops driving of a part of the plurality of planting mechanisms.

[0002]

2. Description of the Related Art In the above-mentioned seedling planting apparatus, conventionally, as disclosed in, for example, Japanese Patent Laid-Open No. 61-63208, the front end of a seedling placed on a row in which the operation of the vertical seedling feeder is stopped. In some cases, a nail-shaped seedling stopper that prevents the movement of the parts is provided.

[0003]

The above conventional structure stops the operation of a part of the planting mechanism and the vertical feed device during planting work at a place near the ridge in a field where seedlings are planted. When each row clutch is disengaged to perform partial row planting, the seedlings placed on the row slide against the sliding rails of the seedling stand to cause frictional resistance or damage to the seedlings. This is to prevent this. However, the placement seedling used in this type of rice transplanter is formed into a mat-like shape with roots entwined with each other, but since it is relatively soft, it can be locked only by the nail-shaped seedling stopper as described above. It cannot be held sufficiently, and due to the weight of the seedling itself, it gradually slides downward and comes into contact with the sliding rail. Therefore, the seedling stopping effect was insufficient and there was room for improvement. The present invention aims to eliminate the above-mentioned problems.

[0004]

A feature of the present invention is that in the seedling planting device described at the beginning, the seedling longitudinal feeding device in the planting strip in which each of the strip clutches is set to a disengaged state is provided in each of the strips. Along with the disengagement operation of the clutch, a reverse drive means is provided to reversely feed a predetermined amount of seedlings to the side opposite to the seedling take-out port side and maintain the state.

[0005]

[Operation] When each row clutch is disengaged, a slide is provided to prevent the seedlings for planting from slipping downward by directing the placed seedlings in the row toward the side opposite to the seedling take-out port side. The state is maintained by feeding backward by a predetermined amount to separate from the moving rail. As a result, it is possible to reliably prevent the seedlings from slipping off by the vertical feeding device provided over substantially the entire width of the strip in order to effectively vertically feed the seedlings. Further, if the lower edge of the seedling is prevented from moving downward by the seedling locking member, the seedling can be held more securely by the seedling table contact surface and the lower edge of the placed seedling.

[0006]

[Effects of the Invention] Therefore, in order to vertically feed seedlings, a seedling vertical feeding device configured to bite into the seedlings sufficiently is used,
It has become possible to effectively prevent the placed seedlings in the row where the planting operation is stopped from being damaged due to the sliding contact resistance with respect to the fixed portion.

[0007]

Embodiments will be described below with reference to the drawings. Figure 1
The seedling planting device is shown in. The seedling planting device is connected to a rear portion of a traveling machine body (not shown) so as to be able to move up and down via a link mechanism, and is reciprocally laterally moved at a constant stroke with respect to the framed planting transmission case 1 connected to the link mechanism. A seedling stand 2 for placing and supporting the seedlings, and a sliding rail 3 provided at the lower end of the seedling stand 2 for preventing the seedlings from falling down are provided.
A plurality of planting mechanisms 5 for taking out the seedlings one by one from the seedling taking-out port 4 formed by cutting out parts, and planting the seedlings at the seedling taking-out port 4 at the end of the lateral movement stroke of the seedling stand 2 It is configured by including a seedling vertical feeding device 6 and the like.

The planting mechanism 5 has planting claws 8 attached to both side ends of a rotary case 7 which is rotationally driven around a horizontal axis, and a cam mechanism (not shown) in the rotary case 7 rotates the rotary case 7. Accordingly, the planting claws 8 take out the seedlings from the seedling taking-out port 4 and plant them while drawing a substantially elliptical locus in a side view. Then, power is supplied from the traveling machine body to the planted transmission case 1 via a transmission shaft (not shown),
As shown in FIG. 2, a transmission system is configured to drive the rotating case 7 from the planted transmission case 1 via a lateral transmission shaft 9 and a chain transmission mechanism 11 arranged in a plurality of chain transmission cases 10. Each clutch 12 for stopping the drive of a part of the planting mechanism 5 is interposed between the lateral transmission shaft 9 and each chain transmission mechanism 11.

The seedling vertical feeding device 6 is provided for each line,
The endless rotating belt 14 with a projection is wound around a pair of upper and lower pulleys 13a and 13b, respectively, and one pulley 13a is rotationally driven by an electric motor M.
At the end of the stroke, the electric motor M is rotationally driven by a predetermined amount corresponding to the seedling picking amount, and the placed seedlings are sent toward the seedling picking port 4. That is, the electric motor M is configured to be driven and controlled by the control device 15, and the control device 15 rotates the electric motor M based on the detection operation of the stroke end detection switch SW1 attached to the lateral side portion of the planted transmission case 1. Control to drive. Along with the disengagement operation of each of the row clutches 12, a reverse drive unit A is provided to reversely feed a predetermined amount of seedlings to the opposite side of the seedling take-out port 4 side and maintain the state. More specifically, a detection switch SW2 for detecting the clutch disengaging operation is provided in the vicinity of the operating lever 16 of each thread clutch 12, and an electric motor for driving the longitudinal feed device 6 in the planting row corresponding to each thread clutch 12 is provided. Motor M
The control device 15 drives and controls the seedlings so as to rotate in a direction opposite to the seedling feeding direction by a predetermined amount and maintain the rotating state. That is, the reverse drive means A is
The control device 15 is provided in advance as a control procedure.

In addition, a seedling locking member 17 that locks the lower end portion of the placed seedling that has been reversely fed by a predetermined amount as described above in accordance with the disengagement operation of the respective row clutches 12 and prevents downward movement is provided. It is prepared for the stand 2. That is, the support shaft 1 erected over the brackets 18 that are erected on the respective partition portions 2a of the seedling placing table 2.
9, the seedling locking member 17 is pivotally supported, and the seedling locking member 17 urged to retract and swing upward is swung downward in conjunction with the operation of cutting the operation lever 16 of each thread clutch 12. It is interlockingly connected through a wire 20 so as to engage with the seedling. In this way, in the row where the planting operation is stopped by the disengagement operation of each row clutch 12, the seedlings are slightly lifted upward by the reverse operation of the vertical feeding device 6,
By the plurality of projections 6a of the vertical feeding device 6 and the seedling locking member 17, the seedlings are securely locked and held, and the seedling collapse or damage due to the sliding contact with the slide rail 3 can be effectively prevented.

[Other Embodiments] The reverse rotation drive means A is reversely driven by a predetermined amount by a mechanical switching mechanism, for example, a gear meshing mechanism, etc., instead of being electrically controlled. It may be configured to.

It should be noted that although reference numerals are given in the claims for facilitating the comparison with the drawings, the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

[Figure 1] Side view of seedling planting device

FIG. 2 is a plan view showing a transmission system of a seedling planting device.

[Explanation of symbols]

2 seedling stand 4 Seedling outlet 5 Planting mechanism 6 Seedling vertical feeder 12 each clutch 17 Seedling locking member A Reverse drive means

Claims (2)

[Claims] 1. A plurality of plantings for picking up seedlings one by one from a seedling take-out port (4) at the lower end of a seedling placing table (2) in an inclined posture where the seedlings are placed and reciprocally moved laterally. A mechanism (5) is provided, and a seedling longitudinal feeding device for feeding a set seedling toward the seedling take-out port (4) by a predetermined amount at the lateral movement stroke end on the seedling placement surface of the seedling stand (2) ( A seedling planting device comprising 6) and each row clutch (12) for stopping the drive of a part of the plurality of planting mechanisms (5). The seedling longitudinal feed device (6) in the planting strip in which the strip clutches (12) are set to the disengaged state causes the seedling take-out port (4) along with the disengagement operation of the strip clutches (12).
A seedling planting device equipped with a reverse rotation drive means (A) for feeding a predetermined amount of seedling backward to the opposite side and maintaining the state. 2. A seedling locking member (17) for locking the placed seedlings at a lower edge thereof to prevent downward movement of the placed seedlings when the placed seedlings are fed backward by a predetermined amount. Item 2. The seedling planting device according to Item 1.