JPH0998619A - Seedling table - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling table enabling the reduction of sliding resistance and the improvement of workability and useful for a riding-type rice transplanter by lowering both right and left edges at the upper side of a seedling loading surface and forming both the edges at almost same height at the lower side. SOLUTION: This seedling table has a seedling loading surface separated for each row, and a mat seedling loaded on the seedling loading surface is slid and transferred along the inclination of the seedling loading surface. In the seedling table, both the right and left edges 14h of the seedling loading surface are made low at the upper side and they are made to be of a roughly same height at the lower side. Further, it is preferable that at the upper side of the seedling loading surface, both the right and left edges 14h are made to be lower than the base surface 14b for sliding the mat seedling, and at the lower side, both the edges 14h are formed at almost same height as the base surface 14b, and at the same time the less steep the inclination of the seedling loading surface 14h is, the lower both the right and left edges are formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a seedling table provided in a riding type rice transplanter, a walking type rice transplanter and the like.

[0002]

Generally, a seedling placing table provided in a rice transplanter has a seedling placing surface partitioned for each row,
The mat seedling placed from the upper end side of the seedling placing surface is configured to be slid and conveyed along the slope of the seedling placing surface. By the way, the mat seedlings are those that are grown in advance using a seedling box of a predetermined size, but the density of roots in the seedling box is not always uniform, and many roots tend to gather at the end of the seedling box. is there. In other words, since the linear growth of roots is blocked by the side wall of the seedling box, the density of roots at the end of the mat seedling becomes high.However, when supplying such mat seedlings from the upper end side of the seedling mounting table, , There was a possibility that the roots at the left and right ends of the mat seedling would become slip resistant and prevent smooth seedling supply.

[0003]

SUMMARY OF THE INVENTION The present invention was created for the purpose of providing a seedling stand that can solve these problems in view of the above-mentioned circumstances, and each article is A seedling mounting table that has a partitioned seedling mounting surface and slides and conveys a mat seedling mounted on the seedling mounting surface along the slope of the seedling mounting surface, wherein the upper side of the seedling mounting surface has both left and right ends. Lower,
The lower side is formed to have substantially the same height. That is, when replenishing mat seedlings from the upper end side of the seedling mounting table, it is possible to reduce the slip resistance at the left and right end portions where the root density is high and to perform good seedling replenishment.

Further, in the above, the upper and lower ends of the seedling placing surface are lower than the slip reference surface of the mat seedling, and the lower side is formed at substantially the same height as the slip reference surface. That is, when replenishing mat seedlings from the upper end side of the seedling mounting table, it is possible to reduce the slip resistance at the left and right end portions where the root density is high and to perform good seedling replenishment.

Further, in the above-mentioned one, when the inclination of the seedling placing table is formed more gently toward the upper side, both right and left ends of the seedling placing surface are formed to be lower as the inclination becomes gentle. In other words, when replenishing mat seedlings from the upper end side of the seedling mounting table, it is possible to reduce slip resistance at the left and right ends where the root density is high and to perform good seedling replenishment. And the inclination angle of the seedling mounting surface can be raised without changing the overall inclination angle of the seedling mounting table, so that the sliding performance of the gently inclined portion can be improved.

[0006]

Next, one embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a planting part connected to a rear part of a riding type rice transplanter via a lifting link mechanism 2, and the planting part 1 is a planting part connected to a rear end part of the lifting link mechanism 2. Part holder 3, planting part frame 4 that is connected to the planting part holder 3 in a freely rolling manner, drive case 5 that is integrally assembled to the planting part frame 4,
A plurality of planter cases 6 protruding rearward from the drive case 5, planting claws 7 provided on each planter case 6,
It is composed of a mat seedling type seedling table 8 slidably supported by the planting part frame 4 and the drive case 5 and a float 9 provided under the planter case 6 so as to be vertically swingable. That is, when the planting section 1 is operated, the planting claws 7 scrape off the seedlings of the planting unit from the lower end of the seedling placing table 8 and plant the scraped seedlings on the rice field, while the mat seedlings The seedling placing table 8 to be placed is laterally fed in a left-right reciprocating manner in accordance with the scraping timing of the planting claw 7, but the basic configuration of each of them is the same as that of the conventional one.

The seedling placing table 8 is assembled to the planting section 1 in a tilted posture of front high and low, and a mat seedling placed on a seedling placing surface, which will be described later, is slid and conveyed backward and downward. However, the inclination angle of the seedling placing table 8 is set to be gentler toward the upper side. That is, in consideration of the seedling supply from the driver's seat 10 side located in front of the seedling mounting table 8, the inclination angle is set in order to keep the height of the upper end of the seedling mounting table 8 as low as possible.
Reference numeral 11 is a seedling retainer for controlling collapse and lateral displacement of mat seedlings, and 12 is a vertical feed belt for forcibly feeding the mat seedlings vertically in accordance with the horizontal feed reversal timing of the seedling mounting table 8.

Reference numeral 13 designates a plurality of partition ribs for partitioning the seedling mounting surface for each row. Between the partition ribs 13, a resin seedling mounting base plate 14 forming the seedling mounting surface for each row is assembled. Although attached, the seedling mounting plate 14 is formed with a plurality of recessed groove portions 14a along the seedling conveying direction at predetermined intervals. That is, the groove 14a reduces the sliding area with the mat seedling (area of the convex surface 14b) to improve the sliding performance, and also functions as a reinforcing rib of the seedling mounting plate 14.

Reference numeral 14c denotes a guide rib formed on the convex portion 14b so as to project along the seedling conveying direction. The guide rib 14c is substantially the same as the seedling mounting plate 14 except for the position of the assembling hole 14d of the vertical feed belt 12. It is formed over the entire length. The guide ribs 14c support the mat seedlings in a floating manner to reduce the slip resistance, regulate the inclination (deviation) of the mat seedlings, and further suppress the seedling mounting plate 14
Although it also functions as a reinforcing rib, a taper portion 14e is formed at the upper end of the guide rib 14c so that the amount of protrusion becomes smaller toward the upper side. That is, as described above, when the mat seedling is supplied from the upper end side of the seedling mounting table 8, the mat seedling can be smoothly supplied without being caught on the upper end portion of the guide rib 14c. still,
Reference numerals 14f and 14g denote a second taper portion and a third taper portion formed at the upper and lower positions of the assembling hole 14d, and the taper portions 14f and 14g are mats when passing the vertical feed position by the vertical feed belt 12. This is for preventing the seedling from being caught by the guide rib 14c.

In the seedling placing plate 14, the left and right end portions (partition rib connecting portions) 1 of the upper range (in the present embodiment, the range from the plate upper end to about one mat seedling).
4h is formed lower than the slip reference surface (the convex surface portion 14b in the present embodiment) of the mat seedling by a predetermined set dimension H, while the left and right end portions 14h in the lower range are set to substantially the same height as the slip reference surface. Is forming. That is, when replenishing mat seedlings from the upper end side of the seedling mounting plate 14, slip resistance at the left and right end portions where the root density is high can be reduced, and seedling replenishment can be smoothly performed.

Further, the set dimension H is maximized at the upper end of the seedling mounting plate 14, while it is smaller at the lower side, and finally becomes "0" at the boundary point between the upper range and the lower range. Is set to. That is, since the left and right end portions 14h become lower as the inclination becomes gentle to reduce the slip resistance, it is possible to make the sliding performance as uniform as possible over the upper and lower sides of the seedling mounting plate 14 where the inclination is not constant. Also, since the sliding reference plane can be made higher toward the upper side without changing the overall inclination angle (shape of the partition rib 13) of the seedling placing table 8, the inclination angle of the gentle inclination portion is raised to improve the sliding performance. You can do it.

The left and right ends 1 of the seedling mounting plate 14
4h is lower than the concave groove portion 14a at the upper end of the plate and higher than the concave groove portion 14a at the boundary point between the upper range and the lower range, but the position where the height is reversed is about 1/2 mat seedling from the upper end of the plate. Is set to. That is,
Since the height difference between the left and right end portions 14h and the concave groove portion 14a is divided into upper and lower parts with the position of approximately 1/2 mat seedlings as a boundary, the left and right end portions 14h of the seedling mounting plate 14 can be lowered toward the upper side. In spite of this, the thickness dimension of the seedling mounting plate 14 can be made as uniform as possible.

In the one constructed as described above, the seedling placing plate 14 for sliding and transporting the mat seedlings is formed such that the upper left and right end portions 14h are lower than the sliding reference plane,
The lower left and right ends 14h are formed at substantially the same height as the sliding reference surface. Therefore, when replenishing mat seedlings from the upper end side of the seedling placing plate 14 in a sliding manner, it is possible to reduce the sliding resistance at the left and right ends where the root density is high and to replenish the seedlings smoothly. Workability at the time of replenishment can be improved.

On the gently sloping side (upper side) where the mat seedlings are poorly slid, the left and right end portions 14h are lowered to reduce the sliding resistance, while on the steeply sloping side (lower side) where the sliding is good, the height is almost the same. Since the mat seedlings are given slip resistance, the sliding performance can be made as uniform as possible over the upper and lower sides of the seedling mounting plate 14.

Furthermore, on the upper side of the seedling mounting plate 14,
Since the left and right end portions 14h become lower as the inclination becomes gentler, it is possible to make the sliding performance more uniform, or the upper inclination angle of the seedling mounting plate 14 without changing the overall inclination angle of the seedling mounting base 8. It is possible to improve the sliding performance of the gently sloping portion.

[Brief description of drawings]

FIG. 1 is a side view of a riding-type rice transplanter.

FIG. 2 is a perspective view of a planting part.

FIG. 3 is an overall side view of a seedling mounting plate.

FIG. 4 is a side view showing the upper range of the seedling mounting plate.

FIG. 5 is an overall plan view of a seedling mounting plate.

FIG. 6 is a sectional view taken along line XX of FIG. 5;

7 is a cross-sectional view taken along line YY of FIG.

[Explanation of symbols]

 8 Seedling platform 13 Partition ribs 14 Seedling platform plate 14b Convex surface (slip reference surface) 14h Left and right ends

Claims (3)

[Claims] 1. A seedling placing table, which has a seedling placing surface partitioned for each row, and slides and conveys mat seedlings placed on the seedling placing surface along an inclination of the seedling placing surface, The upper side of the placing surface is lower on both left and right ends, and the lower side is a seedling placing table formed at substantially the same height. 2. The seedling mounting table according to claim 1, wherein the upper and lower ends of the seedling mounting surface are lower than the slip reference surface of the mat seedling, and the lower side is formed at substantially the same height as the slip reference surface. 3. The seedling placing table according to claim 1, wherein the left and right ends of the seedling placing surface are formed so as to become gentler as the inclination becomes gentler when the seedling placing table is formed to have a gentler inclination toward the upper side.