JPH0928136A - Seedling feeder for transplanting seedlings on seedling mount - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mechanism for feeding smoothly a plurality of mat seedlings placed in vertical rows on a seedling mount. SOLUTION: This seedling feeder has, inside longitudinal ribs 16, a side feed unit 15 composed of a plurality of rollers 17 and interlock means 18 for driving the rollers in interlock with the feed of the seedlings which means are located inside, and protruded on the right and left sides of the ribs 16 so that their periphery comes to contact with the side of the mat seedlings 9 on the seedling mount, thus moving the side feed unit 15 in the mat seedling feed direction in interlock with downward movement of the mat seedlings accompanying the planting work.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling feeding device for a seedling placing table provided in a planting machine of a rice transplanter.

[0002]

2. Description of the Related Art Conventionally, a planting machine provided in a rice transplanter is provided with a seedling placing table on which a plurality of mat seedlings are placed vertically for each row. It is known that a vertical rib is provided to guide the feeding of mat seedlings. When the lower mat seedlings are scraped off by the planting unit and planted in the field while the lower mat seedlings are fed downward by the vertical feed belt, the upper mat seedlings are reduced as the number of mat seedlings under the planting operation decreases. Was guided by the ribs and moved downward by its own weight to continuously carry out planting work.

[0003]

However, when the mat seedlings to be placed on the seedling placing table are seedlings having a relatively good rooting, the bottom or side surface of the seedbed is relatively strong on the seedling placing surface or rib on the upper surface of the seedling placing table. In the upper part where the mat seedlings are in contact with each other, especially the gentle slope of the seedling mounting surface, the downward movement (sliding) of the mat seedlings due to its own weight becomes unstable due to the frictional resistance between the mat seedlings and the seedling mounting base. The mat seedlings that were planted could not be sent to the vertical feed belt. As a result, vertical feeding failure occurs, and there is a problem that the planting work cannot be performed smoothly.

[0004]

The seedling feeding device in the seedling placing table of the present invention for solving the above problems is a longitudinal direction for guiding the seedling feeding of the mat seedling 9 placed on the seedling placing surface 11a. In the seedling placing table 11 provided with the ribs 16 of FIG. 1, the side feeding device 1 includes a plurality of rollers 17 and a linking means 18 for linking and driving the rollers 17 in the ribs 16.
5 is provided, and the outer circumference of the side feeding device 15 is projected to the side of the seedling placing surface 11a of each strip so as to contact the side surface of the mat seedling 9 on the seedling placing surface 11a. The first feature is that the side feeding device 15 is linked with the mat seedling 9 in the feeding direction by the descending movement of the mat seedling 9 accompanying the attaching work.

The second feature is that the side feeding device 15 is attached so as to project to the left and right sides of the rib 16.

[0006]

FIG. 1 is a left side view of a riding rice transplanter to which the present invention is applied. The traveling machine body 1 is supported by the front wheels 2 and the rear wheels 3, and the planting machine 4 is connected to the rear of the traveling machine body 1 via an elevating link 6 so as to be vertically movable. On the other hand, a forward tilted posture in which a mat seedling 9 is placed in a configuration described below is provided above the drive case 7 that constitutes the planting machine frame and the planter case 8 that is attached to the drive case 7 so as to project rearward in parallel. The lower end of the seedling stand 11 is attached so as to be slidable left and right. In addition, seedling stand 1
The left and right slide mechanism 1 is the same as the conventional one.

A grounding float 12 is attached to the lower part of the drive case 7 and the planter case 8, and the planting machine 4 is equipped with the grounding float 12 at the time of planting work.
To the ground through the field. Further, the planter case 8 is provided with a planting portion 14 having a beak 13 and the like. Then, while the traveling machine body 1 travels in the field by the front and rear wheels 2 and 3 in a state where the planting machine 4 is grounded on the field, the beak 13 of the planting section 14 is a mat seedling 9 placed on the seedling placing table 11. The lower end of the tree is scraped off and planted in the field.

Next, the structure of the seedling placing table 11 will be described. In a side view (FIG. 1), the seedling placing table 11 has a bow-like shape that curves obliquely upward and rearward, and its upper surface constitutes a seedling placing surface 11 a on which the mat seedling 9 is placed. As shown in FIG. 2, which is a plan development view, the seedling-placing surface 11a is divided by the ribs 16 projecting upward at intervals of the planting strips, and the ribs 16 are planted below the spaces between the divided ribs 16. Each attachment 14 is provided. A plurality of mat seedlings 9 are vertically (vertically) placed on the seedling placing surface 11a between the ribs 16, and the left and right ribs 1 of the mat seedling 9 are placed.
6 guides the seedling feeding of the mat seedling 9 placed on the seedling placing surface 11a in the vertical direction. That is, the placing portion 11b of the mat seedling 9 is formed between the ribs 16.

On the other hand, each of the ribs 16 is provided with a plurality of rollers 17 rotatably in the vertical direction, and the rollers 17 in the vertical direction alternately protrude to the left and right of the rib 16. That is, the rollers 1 of the left and right ribs 16 that sandwich the mounting portion 11b.
Every other 7 is projected on the seedling placing surface 11a of the placing portion 11b. Each roller 1 on the side surface of the rib 16
7, a notch window 16a is provided at a position opposite to 7,
The roller 17 projects from the cutout window 16a. At this time, the roller 17 is provided from almost the upper end portion to the lower end portion of the seedling placing table 11. The vertical rollers 17 are connected to each other by a belt 18 or the like, which is a linking means, and the belt 18 is wound in a dust-like shape.
In a plan view, the left side surface and the right side surface of the roller 17 are alternately in contact with the opposite side.

Therefore, the side surface of the belt 18 also protrudes into the seedling placing surface 11a of the placing portion 11b, and the driving of the belt 18 causes the rollers 17 to alternately rotate in reverse (see solid arrow in FIG. 2). As a result, the portion of the belt 18 in contact with the protruding surface of the roller 17 from the rib 16 rotates in the same direction for every second piece (see the dotted arrow in FIG. 2). The roller 17 and the belt 18 projecting into the placing portion 11b are rotated left and right in opposite directions, and the left and right belt surfaces are configured to move in the same direction in one cut seedling placing surface 11a.

At this time, the roller 17 or the belt 18 projecting to the placing portion 11b is in contact with the left and right side surfaces of the seedbed of the mat seedling 9 placed in the placing portion 11b, and as described above. Seedling feeding devices are formed on both sides of 11b. In other words, the side part feeding device 15 constituted by the roller 17 and the belt 18 has its outer periphery (the outer peripheral surfaces of the roller 17 and the belt 18) protruding to the left and right sides of the rib 16 so that each line (each mounting part 11b). ) It projects so that it may contact the seedbed side surface of the mat seedling 9 to the side of the seedling mounting surface 11a. Further, since the rollers 17 are alternately projected to the left and right sides of the ribs 16, a single side feeding device 15 for one rib 16 constitutes a seedling feeding device on the left and right sides of each rib 16. There is.

Further, a vertical feed belt 19 having a projection on its upper surface is provided at the lower end side of each placing portion 11b so as to project upward from the seedling placing surface 11a of the placing portion 11b. Among the mat seedlings 9 placed on, the mat seedlings 9a located above the seedling vertical feed belt 19 (the lowest one of the placed mat seedlings) are in contact with the lower surface. Then, the vertical feed belt 19 interlocks with the operation of the planting section 14 and forcibly feeds the mat seedling 9a downward.

Next, the movement operation of the mat seedling 9 at the time of planting seedlings by the riding rice transplanter will be described. As described above, the seedlings are planted in the field. First, as described above, the lowermost mat seedling 9 is placed on the seedling placing table 11 (the seedling placing surface 11a of each placing portion 11b).
The beak 13 sequentially scrapes the seedlings at the lower end of a in the lateral direction to plant in the field. When planting of one row of the mat seedlings 9a in the horizontal direction is completed, the mat seedlings 9a being planted by the seedling vertical feed belt 19 are fed downward to plant seedlings in the row next to the mat seedlings 9a. Attach work.

At this time, the mat seedling 9a is in contact with the roller 17 or the belt 18 on the left and right side surfaces of the nursery bed as described above. Therefore, by feeding the mat seedling 9a downward as described above, the roller 17 or the belt 18 in contact with the mat seedling 9a is driven by friction with the mat seedling 9a,
All the rollers 17 are rotationally driven via the belt 18. At this time, the roller 17 protruding to the left of the rib 16 rotates counterclockwise and the roller 17 protruding to the right rotates counterclockwise with respect to each other, and the belt 18 protruding left and right of the mounting portion 11b moves downward.

The roller 17 or the belt 18 driven as described above sends the mat seedlings 9b, 9c placed above the mat seedling 9a to the left and right sides of the nursery bed, and the mat seedlings 9b, 9c. Is forcibly sent downward. Therefore, even when using a mat seedling that has good rooting and is in relatively strong contact with the seedling placing surface 11a and the ribs 16, the mat seedling can be reliably sent downward and the planting work can be performed well.

In particular, the mat seedling 9c located above the seedling placing table 11 is difficult to move downward by its own weight because the upper part of the seedling placing table 11 has a gentle inclination, but the seedling feeding device of the present invention is difficult. By this, it is possible to reliably move to the planting work position. Further, as described above, the mat seedling 9a being planted is sent downward by the seedling feeding belt 19, so that the mat seedling 9b, which is driven by the belt 18, is driven.
Each roller 17 in contact with 9c also rotates by a certain angle, and the belt 18 also moves downward by a certain amount. Therefore, all the mat seedlings 9 are sent downward in an equal amount.

FIG. 3 shows another embodiment. In the same manner as described above, the side feeding device 15 constituted by the roller 17 and the belt 18 moves from the upper end position of the seedling placing table 11 to the lower end of the seedling placing table 11 in the longitudinal direction of the mat seedling 9.
It is provided up to the length of five sheets. At this time, the structure of the side feeding device 15 and the structure of the seedling placing table 11 are exactly the same as those in the above embodiment.

According to the above structure, among the plurality of mat seedlings 9 placed in the vertical direction on the seedling placing surface 11a, planting is carried out from approximately the lower end of the lowermost mat seedling 9a to a length of 0.5 sheets in the vertical direction. In the work, seedling feeding is performed in exactly the same manner as in the above embodiment (driving the roller 17 or the belt 18 by the mat seedling 9a). When the mat seedling 9a is fed downward to perform planting work of the seedlings above the bottommost mat seedling 9a, the mat seedling 9a and the roller 17 or the belt 1 are sent downward.
8 and 8 are no longer in contact with each other, and the mat seedling 9b immediately above the mat seedling 9a is sent downward by its own weight. Thereby, the roller 17 or the belt 18 in contact with the nursery of the mat seedling 9b
Is used as a driving source to drive the roller 17 or the belt 18 in contact with the nursery bed of the mat seedling 9c located above the mat seedling 9b, and the mat seedling 9c is fed downward.

At this time, the mat seedling 9b is located immediately above the mat seedling 9a, and the seedling table 11 in this portion is steeply inclined with respect to the field. Therefore, even if the mat seedling 9b is a well-rooted mat seedling, the mat seedling 9b is reliably sent downward by its own weight. As a result, the mat seedling 9c, which is located on the upper side of the seedling placing table 11 and which is difficult to move downward due to its own weight, is reliably fed downward by the side feeding device 15. In both of the present embodiment and the above-mentioned embodiment, the seedling placing table 11 is capable of placing 2.5 mat seedlings 9 in the vertical direction, and the seedling supply is performed after the bottommost mat seedling 9a is planted in about half. Is configured to do.

[0020]

EFFECTS OF THE INVENTION According to the present invention configured as described above, the side feeding device provided on the ribs for guiding the seedling feeding from both sides of the mat seedling on the seedling mounting table allows the mat seedling to move downward. Other mat seedlings placed in the vertical direction are forcibly sent downward, so even when using mat seedlings that have good rooting and are in relatively strong contact with the top surface or ribs of the seedling stand, The mat seedlings have the advantage that they can be sent downward and the planting work can be performed well.

By mounting the side feeders so as to alternately project to the left and right sides of the ribs, the seedling feeders can be constructed on the left and right sides of each rib by a single side feeder.

[Brief description of drawings]

FIG. 1 is a left side view of a riding rice transplanter.

FIG. 2 is a partially enlarged plan development view of a seedling placing table.

FIG. 3 is a partially enlarged plan development view of a seedling placing table.

[Explanation of symbols]

 9 mat seedling 11 seedling mounting base 11a seedling mounting surface 15 side feeding device 16 rib 17 roller 18 belt (coupling means)

Claims (2)

[Claims] 1. A seedling placing table (11) provided with a longitudinal rib (16) for guiding seedling feeding of a mat seedling (9) placed on a seedling placing surface (11a), wherein the rib (16) is provided. ), A side feeding device (15) comprising a plurality of rollers (17) and a linking means (18) for linking and driving the rollers (17) is provided, and a mat seedling on the seedling placing surface (11a) is provided. The outer periphery of the side feeding device (15) is made to project to the side of the seedling placing surface (11a) of each strip so as to contact the side surface of (9), and the descending movement of the mat seedling (9) accompanying the planting work. Thus, the seedling feeding device in the seedling placing table, which has a mechanism for linking the side feeding device (15) in the feeding direction of the mat seedling (9). 2. The seedling feeding device for a seedling placing table according to claim 1, wherein the side feeding device (15) is attached so as to project to both right and left sides of the rib (16).