JPS6013311Y2 - Seedling planting device - Google Patents

Description

[Detailed description of the invention] This invention relates to a seedling planting device for a rice transplanter that plants seedlings in a flooded field.

The problem to be solved by this invention will be explained with reference to FIG. 1. First, in FIG. The top surface is
It is divided into a plurality of defined sections 1A by side walls 2 extending in the vertical direction.

A seedling tray 3 is provided on the lower surface side of the lower end of the seedling platform 1 in the inclined direction, and the seedling tray 3 has a seedling tray 3 with a seedling tray 5 through which a planting claw 4 that moves up and down can face inside. , and are spaced apart from each other by a number corresponding to the number of strips of the defining section IA.

While the seedling picking board 3 is provided in a fixed position, the seedling platform 1 is moved horizontally and reciprocally as shown by arrow A, and the planting claws 4
The seedlings for one plant are taken out from the lower end of the seedling pine, which is fed out from the top of each division 1A onto the seedling removal plate 3 through the seedling removal port 6 at the lower end of the slope, at a position facing into the seedling removal port 5. Cut it and plant it in the field.

As the seedling platform 1 moves laterally, the seedlings addressed to the ■ stock are successively cut off from the lower end of the seedling pine that has been fed onto the seedling removal board 3 in this way, as shown in Figure 1a. When the last plant is cut out at the horizontally moving end of the seedling stand 1, the dividing section IA
At the top, the seedling mat is vertically fed, and the lower end of the seedling mat is again fed out from the seedling removal port 6 onto the seedling removal plate 3, and then this new lower end of the seedling mat is fed in the opposite direction of the seedling platform 1. Similar seedlings are collected during horizontal movement.

What has been stated above is well known to those skilled in the art,
Furthermore, as is known to those skilled in the art, at the end of the lateral movement of the seedling platform 1 as shown in FIG. If this is attempted, the planting claws 4 may inevitably interfere with the side wall 2 due to assembly accuracy, and for this reason, it is absolutely necessary to provide a slight interval α as shown in the figure.

In this way, since there is a gap α between the planting claw 4 and the side wall 2 at the horizontally moving end of the seedling platform 1, when the final seedling cutting is performed at the lower end of the seedling pine located on the seedling removing plate 3, Then, when performing the first seedling harvesting on the lower end of a new seedling pine that is vertically fed and delivered onto the seedling picking plate 3, the interval α is
There will be some seedlings left behind, and this leftover amount will be
It accumulates on the top, causing problems such as seedling collapse and missing plants.

In order to correct the positional shift within the demarcation section IA of the seedling mat whose width tends to be slightly narrowed due to the horizontal movement of the seedling platform 1, and to eliminate the above-mentioned seedling mat from being left behind. A proposed seedling planting device is described in Japanese Utility Model Publication No. 47-22091.

As shown in FIG. 1, this publication has a microorganism at the tip of the side wall 2 that spans the tip of the dividing section 1A and the top of the seedling plate 3 to narrow the width of the seedling mat. It is configured such that an internal regulating body 7 is provided.

The method disclosed in the same publication has the effect of correcting the misalignment of the seedling pine within the dividing section IA at the lower end of the mat because the intrabacterial regulator 7 narrows the width of the lower end of the seedling pine. As said in , it does not work to eliminate the seedling mat left behind.

This is because, in order to avoid interference between the planting nails 4 and the bacteria regulating body 7 when the planting nails 4 come closest to the bacteria regulating body 7 as shown in FIG. As for the need to leave a distance α between the nails 4 and the bacterial regulators 7, the situation remains the same even in the case shown in Figure 1, and in the end, even in the case shown in Figure 1, the distance α is required for the seedling mat. This is because there is no problem with leaving anything behind.

The challenges of this invention are not only to correct the misalignment of seedling mats as shown in Figure 1, but also to create a new seedling mat that eliminates the problem of seedling mats left behind as described above in conventional mats. Planting is in providing equipment.

Regarding the embodiment shown in Figs. 2 and 3, the configuration of the device for planting seedlings according to this invention will be explained as shown in Fig. 2.
An engine 8 constituting the drive source is mounted on the front of the fuselage, and input is transmitted from the engine 8 to the main transmission 10 by a belt 9 transmission. The power is transmitted to the drive wheels 12 of the float 13 in the field.
This is done by the rotation of the drive wheels 12 while sliding the seedlings, and the planting part is equipped with a planter placed in front of the seedling stand 1, to which power is transmitted from the main transmission 10 through the intermediate transmission 14. An attaching transmission 15 is provided, and the lateral reciprocating drive of the seedling platform 1 is carried out by a lateral feed shaft 16 which is caused to move laterally back and forth by the planting section transmission 15.
This is done by interlockingly connecting the left and right transverse feed arms 17 to the seedling stand 1, and the vertical movement drive of the planting claw 4 moves the planting arm equipped with the planting claw 4. This invention is implemented in the following manner in a rice transplanter that uses a drive shaft (not shown) provided in the supporting planting section transmission 15.

That is, as similarly shown in FIG. 2, the illustrated rice transplanter is for two-row planting, and correspondingly, the top surface of the seedling platform 1 has side walls 2 at the center and side walls 2 at the side ends. It is divided into two divided sections 1A separated by two rows, and correspondingly, two seedling intake holes 5 are provided on the seedling removal board 3, but each section IA
On the side walls 2 on both sides, there is a seedling loading stand 1 which is fed horizontally along the arrow A only at a portion directly in front of the seedling removal port 6 onto the seedling removal board 3 when viewed in the vertical feeding direction of the seedlings which are fed vertically in the direction of the arrow B. An overhanging portion 18 is provided that overhangs inward of the defining section IA when viewed in the traverse direction.

As shown in FIG. 3 for the two overhangs 18 provided on the central side wall 2, each overhang is a main body whose overhang width t is constant following a starting end portion 18a whose overhang width increases successively. It is formed in such a way that it has a rounded end at a position immediately in front of the seedling outlet 6.

The above-mentioned overhang width t is determined in such a way as to avoid interference between the planting claw 4 and the side wall 2 when the planting claw 4 is at the closest position to the side wall 2 as shown in FIG. While the same spacing α as in the conventional case is placed between the planting nails 4 and the side wall 2, the spacing α is set larger than the spacing α (1>α).

In other words, the overhanging portion 18 is located from the position of the end face of the planting claw on the side wall 2 when the planting claw 4 is closest to the side wall 2 when viewed in the lateral direction of the seedling platform 1. It also extends toward the inside of the defined section IA.

Therefore, as shown in FIG. 3 for the seedling mat M on one of the dividing sections IA, the seedling mats on each dividing section 1A are vertically fed in the same vertical feeding direction. Starting end portion 18 of overhang portion 18 from the width of section IA
The width is successively narrowed at a, and the width is narrowed to the width D'(D'=D-2t) of the mat part that comes into contact with the main part of the overhang width t, and then the width D' remains as it is in the direction of arrow B. The lower end portion is fed out from the seedling removal port 6 onto the seedling removal board 3.

As described above, even if the width of the seedling mat M becomes slightly narrower than the width of the dividing section IA due to the lateral movement of the seedling platform 1 and the position of the seedling mat M is shifted, the overhang of the side wall 2 can be prevented. Part 18
The above-mentioned positional deviation is corrected by narrowing the remaining seedling pine to a certain width D'.

In particular, each end surface of the lower end of the seedling pine that is fed out onto the seedling removal board 3 with the above-mentioned constant width D' has a planting claw 4 attached to each side wall 2.
The position closest to each side wall 2 as described above is located inside in the width direction of the dividing section IA than the position of the end surface of the planting nail on the same side wall 2 side when the position is the closest position. In this case, the planting claws 4 cut off all the seedlings from the side edges of the seedling mat M, and the number of seedling mats left behind is completely eliminated.

As described above, in the seedling planting device of this invention, the planting claw 4 is located closest to the side wall 2 of each partition IA on the seedling platform 1 when viewed in the transverse direction of the seedling platform. A seedling tray in which the tip of the planting claw 4 passes through an overhanging portion 18 that extends inward from the end surface of the planting claw on the side wall side when viewed in the vertical direction of seedling feeding. The starting end portion 18a, which is provided only in the immediate vicinity of the exit 6 and located on the upstream side in the vertical direction of seedling feeding in this overhanging portion 18, is sequentially extended in width inward from the upstream side to the downstream side in the vertical direction of seedling feeding. It is characterized by the fact that it is formed in a large area, and the seedling mat tends to be slightly narrowed due to the horizontal movement of the seedling table.In addition to correcting the positional shift within the defined section, it is possible to use conventional technology. This completely solves the unsolved problem of seedlings being left behind due to the planting claws located closest to the side wall.

Moreover, since the overhanging part 18 of the side wall 2 is located upstream of the seedling removal port 6 through which the tip of the planting claw 4 passes when viewed in the vertical direction of seedling feeding, the tip of the planting claw is relative to the overhanging part 1B. Needless to say, the problem that the overhanging portions 18 come into contact with each other does not occur, and since the starting end portion 18a of the overhanging portion 18 is formed so that the overhanging width increases toward the downstream side in the vertical direction of seedling feeding, the seedlings can be easily loaded. When a seedling mat is first placed on the seedling platform 1 from an empty platform 1, the tip of the seedling mat will be guided by the starting end portion 18a of the overhanging portion, and will not be caught on the overhanging portion 18. do not have.

[Brief explanation of drawings]

Figures 1a and b are schematic plan views showing the main parts of a conventional example, Figure 2 is a partially omitted schematic plan view of a rice transplanter equipped with an embodiment of this invention, and Figure 3 is a schematic plan view of the same embodiment. FIG. 3 is a schematic plan view of main parts. 1... Seedling stand, 1A... Defined section, 2
...Side wall, 3...Seedling board, 4...
... Planting claw, 5 ... Seedling outlet, 6 ... Seedling takeout port, 18 ... Overhanging part.

Claims (1)

[Scope of utility model registration request] On the side wall of each dividing section in the seedling platform, there is a space that is more defined than the position of the end face of the planting claw on the side wall when the planting claw is closest to the side wall when viewed in the transverse direction of the seedling platform. An overhanging portion that extends toward the inside of the compartment is provided only in the portion immediately before the seedling take-out port through which the tip of the planting claw passes when viewed in the vertical direction of seedling feeding,
In this overhanging part, the starting end part located on the upstream side in the vertical direction of seedling feeding is shaped into a part whose overhanging width toward the inside of the defined section is gradually increased from the upstream side to the downstream side in the vertical direction of seedling feeding. A device is used for planting seedlings.