JPH0677481B2 - Seedling structure of rice transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention provides a bottom surface of a mat-shaped seedling projecting above a sliding rail on the lower end of a seedling stand that moves left and right along a sliding rail. And a plurality of seedling support rods made of an elastic material that prevent lateral displacement due to friction between the mat-shaped seedlings and the sliding rails due to lateral movement of the seedling placing base, are placed at appropriate intervals in the width direction of the seedling placing base. The seedling stand structure of the rice transplanter provided in.

[Conventional technology]

In this type of seedling table structure, as disclosed in Japanese Utility Model Laid-Open No. Sho 62-68514, the planting claws are brought into contact by making the seedling support rod a spring wire whose upper end is cantilevered. Was also elastically deformed to the side.

[Problems to be Solved by the Invention]

However, in the above-mentioned seedling support rod, if the rigidity of the spring wire is increased to enhance the seedling support function, it is less likely to be elastically deformed, and the planting claw and the seedling support rod itself are easily damaged or deformed. If you make it soft and can easily swing elastically in the width direction along the seedling's placing surface and surely prevent the damage, the lateral displacement of the mat-shaped seedling due to friction with the sliding rail is sufficiently prevented. Therefore, it is difficult to set the rigidity of the spring wire. Also, the seedling support function is likely to change due to an assembly error or a manufacturing error of the seedling support rod, which makes it difficult to stabilize the performance of each aircraft.

The present invention was devised by focusing on such an actual situation, and an object thereof is to stabilize the function of a seedling support rod supported in a cantilever manner.

[Means for Solving the Problems]

A characteristic configuration of the present invention is that a lower end portion of the seedling stand is provided with an abutment portion that abuts and limits the swinging of the seedling support rod in the widthwise direction over a certain range. The effects are as follows.

[Work]

That is, the abutment portion provided at the lower end of the seedling stand limits the swinging of the seedling support rod in the width direction within a certain range.

〔The invention's effect〕

The cantilever support rod supported by a cantilever was made flexible so that damage due to contact with the planting nail could be surely prevented, but lateral displacement of the mat-like seedling could be suppressed to a minimum. As a result, the function of avoiding damage due to contact with the planting claws and the function of supporting the seedlings are stable regardless of the assembly error and manufacturing error of the seedling support rod.
It is now possible to stabilize the functions of each aircraft.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

The 4th seedling planting device is used by mounting it on the rear part of the passenger aircraft.
As shown in the figure.

The seedling planting device includes a tilted posture seedling placing table (1) capable of reciprocating lateral movement with a constant stroke, and the mat-like seedlings (W) placed on the seedling placing table (1) are moved downward from the rear. The seedling planting mechanism (2) is used to sequentially cut out one plant and plant it on the map.

A pair of left and right seedling feeding mechanisms for feeding the mat-like seedlings (W) downward along the seedling placement surface (1a) at the stroke end where the row of the lower end of the mat-like seedlings is cut out to the seedling placement table (1). (3) is provided for each article. The seedling feeding mechanism (3) is of a belt-rotating type that vertically rotates a seedling feeding belt (4) provided with a large number of protrusions (4a) on its surface.

As shown in FIG. 1, the seedling placing table (1) is provided with an opening (5) for allowing the protrusion (4a) of the seedling feeding belt (4) to face the seedling placing surface (1a). A seedling support rod (7) projecting from the lower end side of the seedling stand (1) to the sliding rail (6) side is locked and fixed to the left and right lower ends of the opening (5). This seedling support rod (7) receives the bottom surface of the mat-shaped seedling (W) protruding above the sliding rail (6) from below so as not to drip, and the mat-like shape accompanying the lateral movement of the seedling stand (1). It has a function of preventing lateral displacement due to friction between the seedling (W) and the sliding rail (6). Furthermore, this seedling support rod (7)
Uses a flexible spring wire that has elasticity so that it will not be damaged even if the planting claw (8) comes into contact with it.
The long end is supported by a cantilever so that the bending amount per unit length at the time of contact becomes small. In addition, a pair of left and right seedling support rods (7) are provided for one opening (5), and they are connected to each other on the rear surface of the seedling stand,
It is locked to a protrusion (10) on the back of the seedling stand to prevent it from pulling out upward.

Moreover, as shown in FIGS. 2 and 3, the seedling surface (1
On the a), as an example of the abutting part, two ridges (9) along both sides of the seedling support rod (7) are formed for each seedling support rod (7). (9) The contact part (S) for limiting the swinging of the seedling support rod (7) in the width direction over a certain range.
There is. In other words, since the seedling support rod (7) is cantilevered and is flexible and long, it is relatively easy to swing in the width direction. The lateral deviation of the mat-shaped seedlings (W) is suppressed to a small value by limiting the above.

[Another embodiment]

To carry out the present invention, as shown in FIG.
A vertical groove (11) for passing the seedling support rod (7) may be formed in a) to form an abutment portion (S) for limiting the swing range of the seedling support rod (7).

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

Fig. 1 is a side view of the seedling support rod, Fig. 2 is the same plan view, Fig. 3 is a cross section of the seedling stand, Fig. 4 is a side view of the seedling planting device, and Fig. 5 is a patch. It is sectional drawing which shows another Example of a part. (1) …… Seedling stand, (6) …… Sliding rail, (7)…
… Seedling support rod, (S) …… Contact part, (W) …… Matte seedling.

Claims (1)

[Claims] 1. A bottom surface of a mat-shaped seedling (W) projecting above the sliding rail (6) from below at the lower end of the seedling stand (1) that reciprocates left and right along the sliding rail (6). A plurality of seedling support rods (7) made of an elastic material for receiving and preventing lateral displacement due to friction between the mat-shaped seedlings (W) and the sliding rails (6) due to lateral movement of the seedling placing table (1). A seedling support structure of a rice transplanter provided at appropriate intervals in the width direction of the seedling support base (1), wherein the side of the seedling support rod (7) is provided at the lower end of the seedling support base (1). A seedling stand structure for rice transplanters that has a contacting part (S) that limits swinging in a width direction over a certain range.