JPH0441790Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to the structure of a seedling stand for a rice transplanter, and more specifically, a technology for preventing horizontal and vertical displacement of seedlings that occurs when the seedling stand moves laterally. Regarding.

[Prior art]

Generally, in this kind of rice transplanter's seedling stand structure, when the seedling stand moves back and forth from side to side, the seedlings in the front row create relative friction with the sliding rail, which prevents smooth lateral movement of the seedling stand. In addition, as the seedlings in the front row were taken out, the part of the seedlings placed on the side from which they were taken out slipped downward, causing the inconvenience that the seedlings could not be taken out properly.

Conventionally, as a means for preventing the above-mentioned horizontal and vertical displacement of seedlings, there is a technique disclosed in Japanese Utility Model Publication No. 49311/1983.

This structure has a sliding rail on the seedling stand.
Protrusions that protrude upward along the longitudinal direction of the rail are provided to reduce the contact area of the seedlings with the sliding rail to prevent the seedlings from shifting laterally, and the protrusions are
The protrusion is positioned on the same line as the trajectory of the tip of the planting claw, and is configured to receive the remaining seedlings after being scraped off by the planting claw, thereby preventing vertical displacement of the seedlings.

[Problem that the invention attempts to solve]

However, with this structure in which projections are provided on the sliding rail to prevent the seedlings from shifting horizontally and vertically, even if the frictional resistance of the seedlings against the sliding rail can be reduced to some extent, the sliding Because frictional resistance against the rails occurs, the difference in hardness and softness of the bed soil for seedlings may prevent seedlings from shifting horizontally if the bed soil for seedlings is hard to some extent. For soft seedlings, there was a drawback that the good ability to prevent the seedlings from shifting laterally was not achieved.

Furthermore, since the protrusions are provided over the entire width of the sliding rail, there is no problem in that the protrusions obstruct the vertical feeding of the seedlings when the seedlings are fed vertically by the seedling steering rotor, that is, the vertical seedling feeder. It was hot.

The purpose of this invention is to enable smooth vertical feeding of seedlings while suppressing lateral and vertical shifting of the seedlings by devising a structure for preventing the seedlings from shifting sideways.

[Means for solving problems]

The characteristic configuration of the present invention to achieve the above object is that the bottom of the seedling table that protrudes on the sliding rail is received from below at the lower end of the seedling stand that moves back and forth from side to side along the sliding rail. A plurality of seedling support rods are provided close to the seedling vertical feeder in the width direction to prevent relative friction between the placed seedlings and the sliding rail due to the horizontal movement of the seedling platform, and the seedling support rods are A protrusion that comes into contact with the front surface of the remaining seedlings after they have been scraped off by the attached claws to prevent the seedlings from shifting vertically, and a through hole formed on the bottom of the seedling platform to expose the vertical seedling feeder. The present invention is characterized in that a locking portion that engages and connects with the hole is provided.

[Effect]

The front row of seedlings protruding onto the sliding rail is supported from below by the seedling support rod, so that
It is fed horizontally without making sliding contact with the sliding rail.

The remaining seedlings after being scraped off by the planting claws come into contact with the projections provided on the seedling support rod, thereby preventing the seedlings from shifting vertically.

Since the seedling support rod is provided close to the seedling vertical feeder in the width direction, even if there is a protrusion to prevent vertical displacement, the seedling support rod is close to the action part of the vertical seedling feed, so vertical feeding can be carried out without any problem. I can do it.

Further, since the seedling support rod is attached using the hole of the seedling vertical feeder, there is no need to form an extra hole in the seedling stand for attachment.

[Effect of idea]

As a result of the above configuration, regardless of the viscosity of the bed soil for seedlings, it is possible to suppress horizontal and vertical displacement of the seedlings, and furthermore, it is possible to perform vertical feeding of the seedlings.

Moreover, the seedling support rod can be easily attached to the seedling stand without using means such as welding.

〔Example〕

The figure shows a seedling tray of a 6-row rice transplanter, in which 1 is a seedling tray on which pine-shaped seedlings W are mounted, and the seedling tray 1 is intermittently moved horizontally and reciprocally with respect to the lower seedling tray sliding rail 2. Ru. The seedling platform sliding rail 2 includes:
Seedling extraction port 4 for passing through planting claws 3 that operate in vertical circulation
is formed, and is configured to take out one seedling block from the lower end of the pine-shaped seedling W using the planting claws 3 as the seedling stand 1 is moved laterally.

Reference numeral 5 denotes a star wheel-shaped vertical seedling feeder for vertically feeding the pine-shaped seedlings W by rotating downward by a certain angle when the seedling tray 1 reaches the end of horizontal feeding. It is a feeding claw, and its upper part is provided in a state of protruding from a through hole 6 formed in the bottom surface 1a of the seedling platform.

As shown in FIGS. 1 to 5, the slide rail 2 is connected to the seedling platform 1 from the seedling platform 1 to the slide rail 2.
Four seedling support rods 7, which receive the bottom surface of the pine-shaped seedling end portion a protruding upward from below, are attached to each of the seedling placement portions at appropriate intervals in the lateral direction.

The means for attaching the seedling support rods 7 to the seedling stand 1 is a means for attaching two rods as a set by using the holes 6, and is specifically shown in FIGS. 1 to 5. The upper end of the seedling support rod 7 in the seedling feeding direction engages with the lower edge 6a of the hole 6 in the seedling feeding direction to prevent the seedling support rod 7 from moving downward in the seedling feeding direction. A U-shaped rod portion 8 is provided in series, and the seedling support rod 7 is attached to the end of the U-shaped rod portion 8 at a location on the lower side of the hole 6 in the seedling feeding direction.
and a clamping rod portion 9 that elastically clamps the seedling support rod 1 and prevents the seedling support rod 7 from floating up from the seedling support rod 1.
are connected in a state extending between the ends of the two U-shaped rod portions 8, and are engaged with the clamping rod portion 9 on the seedling resting stand 1 to move toward the upper side of the seedling support rod 7 in the seedling feeding direction. This is a means for integrally forming an engaging portion 10 that prevents movement of.

Each of the seedling support rods 7... has a planting claw 3.
A protrusion 7a is integrally provided to abut on the front surface of the remaining seedling portion after it has been scraped off by the holder to prevent vertical displacement of the seedling.

Next, to explain how to attach the seedling support rod 7, as shown in FIG.
is engaged with the engaging portion 10. Next, as shown in FIG. 4B, the seedling support rod 7 is swung using the engagement point between the clamping rod portion 9 and the engaging portion 10 as a fulcrum so that it touches the surface of the seedling stand 1, and the U-shape is formed. The rod portion 8 is engaged with the hole 6.

In the above embodiment, the U-shaped rod portion 8 and the clamping rod portion 9 of the seedling support rod 7 are collectively referred to as a locking portion that engages and connects the seedling support rod 7 to the hole 6 of the vertical seedling feeder 5.

[Brief explanation of the drawing]

The drawings show an embodiment of the seedling stand structure of the rice transplanter according to the present invention, in which Fig. 1 is a longitudinal cross-sectional side view of the main part, Fig. 2 is a plan view of the main part, and Fig. 3 is an exploded perspective view of the main part. , Figures 4A and 4B are enlarged vertical cross-sectional views of the main parts showing how to install the seedling support rod, and Figure 5 is Figure 4B.
FIG. 1... Seedling stand, 2... Sliding rail, 3... Planting claw, 5... Seedling vertical feeder, 6... Hole, 7... Seedling support rod, 7a... Protrusion, 8, 9 ...Latching part.

Claims (1)

[Scope of utility model claims] At the lower end of the seedling tray 1, which moves back and forth from side to side along the sliding rail 2, the bottom surface of the seedlings protruding onto the sliding rail 2 is received from below, and the seedlings placed on the tray as the seedling tray moves laterally. A plurality of seedling support rods 7 for preventing relative friction with the sliding rail are provided adjacent to the seedling vertical feeder 5 in the width direction, and the seedling support rods 7 are raked with the planting claws 3. A protrusion 7a that comes into contact with the front surface of the remaining seedling after being removed to prevent the seedling from shifting vertically, and a through hole 6 formed in the bottom surface 1a of the seedling platform to expose the vertical seedling feeder 5. A seedling stand structure for a rice transplanter, which is provided with locking parts 8 and 9 that engage and connect.