JPS6366483B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION In order to raise seedlings for use in a rice transplanter, there is a seedling box consisting of a large number of bottomless, strip-shaped seedling chambers arranged in parallel. The present invention relates to a seedling remover for peeling seedlings grown in the seedling box for a rice transplanter from the ground surface, together with the seedling box.

In other words, the roots of the seedlings grown in this nursery box extend underground from the bottom of the nursery room, so in order to peel the seedlings from the ground together with the nursery box, the roots that have extended underground should be pulled along the bottom of the nursery box. You need to cut it out. For this reason, a seedling catcher as shown in FIG. 5 has conventionally been used. This seedling catcher had a wire for root cutting held under tension at the tip of a bifurcated arm fixed to the tip of the handle. However, if the root cutting wire is kept under tension at all times, it is convenient to push the wire into the ground with the arm, but if you pull the handle and try to cut the roots of the seedling along the bottom of the seedling box, There were problems such as roots falling out and lifting the nursery box, or roots pulling and pulling the stems and leaves standing upright on the top of the nursery box into the bottom of the nursery box. When I loosened the root cutting wire, it cut better.

That is, this invention eliminates the drawbacks of conventional seedling removers,
To provide a seedling remover capable of sharply and reliably cutting the roots of seedlings extending underground.

That is, in this invention, a pair of arms are provided facing each other around a handle, and a root cutting wire is stretched at the tip of each arm, and the arms can be opened and closed so as to tension and relax the wire. The gist is the structure of a seedling catcher characterized by the following features:

This invention will be explained with reference to FIGS. 1 and 2. Reference numeral 1 denotes a handle, and a pair of arms 2, 2 are provided on both sides of the handle, facing each other. Handle 1
A slide tube is slidably inserted and supported in the. Mounting seats 4, 4 are provided on the slide tube 3 to protrude left and right, and the arms 2, 2 are rotatably provided on the mounting seats 4, 4.
Two links 5, 5 are rotatably provided at the tip of the handle 1, and the tips of the links 5, 5 are rotatably connected to the arms 2, 2. 6
is the front stop, 7 is the rear stop, and these stops 6, 7
are fixed to the handle 1 at appropriate intervals.

These stops 6 and 7 restrict the sliding range of the slide tube 3 that is slidably provided on the handle 1. For example, when the handle 1 is fixed and the slide tube 3 is moved backward, the slide tube 3 The rear end comes into contact with the rear stopper 7 and stops. However, as the slide tube 3 retreats, the links 5, 5 at the tip of the handle 1 open wide, and the left and right arms 2, 2 expand to hold the root cutting wire 8 under tension as shown in Fig. 1. Become.

Next, when the slide tube 3 is moved forward with the handle 1 fixed, the links 5, 5 are bent into a square shape, the arms 2, 2 are closed, and the root cutting wire 8 is relaxed and becomes freely bendable. However, since the forward movement of the slide tube 3 is restricted by the front stopper 6, the tips of the arms 2, 2 do not come closer than the width of the seedling box a.

Since this invention is configured as described above,
When the handle 1 is fixed and the slide tube 3 is retreated and pressed against the rear stopper 7, the arms 2, 2 are expanded and the root cutting wire 8 is held under tension at the tips thereof. Next, as shown in Fig. 1, this wire 8 is brought close to the front edge of the seedling box a on the ground surface, and when it is pushed into the ground with the handle 1, the wire 8 is held under tension by the tips of the arms 2, 2, and 2 and 2 are pushed into the bottom of the seedling box a.

When the handle 1 is pulled slightly, the front stopper 6 comes into contact with the front end of the slide tube 3, the two links 5, 5 are bent between them, the arms 2, 2 are closed, and the root cutting wire 8 can be bent freely as shown in Figure 2. Then, when the handle 1 is pulled further, the root cutting wire 8 is pulled underground while remaining curved, and the roots of the seedling extending underground are extremely reliably cut along the bottom surface of the seedling box a. .

When the inventor conducted a performance test on the conventional seedling remover and the seedling remover according to the present invention, it was found that the conventional seedling remover was able to completely remove seedlings from only 3 out of 10 boxes, but the seedling remover according to the present invention I was able to completely remove seedlings from all 10 boxes using the container.

As described above, the present invention has the practical benefit of being able to very easily and reliably remove seedlings grown in seedling boxes from the ground surface together with the seedling box.

Note that FIGS. 3 and 4 are perspective views of other embodiments.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an embodiment showing a state where the root cutting wire is tensioned, Fig. 2 is a perspective view showing the root cutting wire of the embodiment in a relaxed state, and Fig. 3 is a perspective view of another embodiment. FIG. 4 is a perspective view of the example with the root cutting wire relaxed, and FIG. 5 is a perspective view of a conventional seedling catcher. The symbols in the figure are explained as follows. 1
is the handle, 2 is the arm, 3 is the slide tube, 4 is the mounting seat, 5 is the link, 6 is the front stop, 7 is the rear stop,
8 is the root cutting wire.

Claims (1)

[Claims] 1 A pair of arms are provided facing each other around the handle,
A seedling catcher characterized in that a wire for root cutting is stretched at the tip of the arm, and the arm is provided so as to be openable and closable so that the wire can be tensioned and relaxed.