JPH0736734B2 - Cutlery used for grafting seedlings - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cutter used for grafting seedlings of tomato, cucumber, watermelon, melon and the like.

The above-mentioned seedlings are prone to disease and insect damage such as vine disease and bacterial wilt caused by soil bacteria. In order to impart disease resistance and insect resistance to these seedlings, a rootstock having disease resistance and insect resistance has been selected for a long time, and grafting has been carried out on this rootstock.

[Conventional technology]

By the way, shaving blades have been used to cut stalks and rootstocks for grafting saplings, but even if a razor blade is used by hand, even a skilled worker does not damage the seedlings. It was difficult to cut into the shape of, and it was inefficient, productivity was poor, and economic efficiency was not good.

For example, the tip of a spike is cut into a V shape (so-called wedge shape), but the manual work is to put the tip of the spike on the belly of the fingertip, cut it at an angle, turn the spike over, and then diagonally again. Although the tip of the scion was cut into a V shape, it was a work in which the blade was used with the fingertips. In addition, the scoop was flexible and easily damaged, making it inefficient and the worker was nervous even if a skilled worker. Since the stiff shoulder is used, the fixation of the worker of the graft is not good recently, and it has become a problem from the viewpoint of securing the worker.

[Problems to be solved by the invention]

Therefore, the present inventor has attempted to solve the above problems by inventing a cutter capable of accurately and easily cutting the tip of a scion into a V-shape when grafting with a sapling.

[Means for solving problems]

That is, according to the present invention, the edges 17 and 18 of the two slender flexible blades 15 and 16 are placed on the lower side, and the rear end portions of the two blades are connected to one of the V-shaped graspable bodies 1 which can be opened and closed. Is fixed to the inner surface of the tip of the grasping piece 2 in an inverted "C" shape, and the inner surface of the tip of the other grasping piece 3 is provided with a recessed groove 12 along the width direction of the grasping body 1 at the center. The blade receiver 9 provided with the V-shaped slits 13 and 14 is provided so as to correspond to the free end sides of the blades 15 and 16 and the surface of the concave groove 12 is directed obliquely upward. It is a cutter used for grafting seedlings in which a part of the free end sides 21, 22 of the two blades 15, 16 are movably inserted in the upper part.

[Embodiment] and [Operation] An embodiment of the present invention will be described below with reference to the drawings.

Embodiment 1 In FIG. 1, reference numeral 1 denotes a V-shaped grasping body composed of grasping pieces 2 and 3 made of plastic, which is fixed at one end of the grasping pieces 2 and 3 by a shaft 4 and is normally open. As shown in the state, a spring (not shown) is housed in the hollow portion of the grasping pieces 2 and 3.

As shown in Fig. 4, a slit is formed on the inner surface of the tip of the grasping piece 2.
5 and 6 are provided in an inverted "C" shape, and the grasping piece 2
A screw hole 7 is provided in a penetrating shape on the side surface of the distal end portion across the slits 5 and 6.

On the other hand, a recess 8 as shown in FIG. 5 is provided in the center of the inner surface of the tip of the grasping piece 3, and a screw hole 26 is formed in the side surface of the tip of the grasping piece 3 so as to penetrate through the recess 8. It is provided in.

FIG. 6 shows a blade receiving body 9 which is fitted in the concave portion 8, a convex portion 10 which is fitted in the concave portion 8 is provided in the rear portion, and the front portion has the same width as that of the grasping piece 3 and has a substantially triangular shape in a side view. A U-shaped or V-shaped concave groove 12 is provided in the central portion of the front surface along the width direction, and above the concave groove 12, the free end sides 21, 22 of the blades 15, 16 are provided.
The slits 13 and 14 for guiding are provided in a V shape.

The interval between the upper ends of the V-shape is larger than the diameter dimension of the seedling stem.

Reference numeral 11 designates a screw hole provided at a position corresponding to the screw hole 26 when the convex portion 10 is fitted into the concave portion 8.

In FIG. 3, 15 and 16 are flexible elongated blades, 17 and 18 are blade tips provided over the front half of the lower surface of the blade, and 19 and 20 are screw holes provided at the rear of the blade.

In the cutter according to the present invention, the above parts are assembled as follows.

That is, the rear end portion of the blade is inserted into the slits 5 and 6 on the inner surface of the tip of the grasping piece 2 with the blade tips 17 and 18 of the blades 15 and 16 facing downward.
The screw hole 19 of the blade is passed through the screw hole 7 of the side portion, the screw 23 is passed through, and the tip portion thereof is tightened and fixed to the nut.

On the other hand, in the concave portion 8 at the tip of the grasping piece 3, the concave groove of the blade receiving body 9 is formed.
12 is directed obliquely upward, the V-shaped slits 13 and 14 are made to correspond to the free end sides 21 and 22 of the blades 15 and 16, and the rear convex portion 10 is fitted, and from the screw hole 26 on the side of the grasping piece 3. Screw hole 11 on the protrusion 10
Through the screw 24 and tighten the tip of the screw with a nut to fix it.

When assembling the above-mentioned cutter, as shown in Fig. 1, when the tips of both grasping pieces 2 and 3 of the cutter are most opened, part of the free ends 21 and 22 of the blades 15 and 16 is the upper part of the blade receiver 9. V
It is fitted in the upper part of the V-shaped slits 13 and 14, and the blades 15 and 16 are V-shaped slits due to the proximity of the tips of both gripping pieces 2 and 3.
It is designed to move forward and downward while bending along 13,14.

Next, a method for using the seedling cutter for grafting shown in the above embodiment will be described with reference to FIG.

Hold the upper part of the cut tomato seedling A at the root part that is the graft of the graft with your left hand and the cutter in your right hand.

V-shaped slits 13 and 1 provided on the blade receiver 9 of the cutter
Since the free ends 21 and 22 of the two blades 15 and 16 inserted in 4 are located above the V-shaped slits 13 and 14 as shown in FIG. 8, the two blades 15 and 16 are inserted. Is open to the left and right, and there is a gap 25 between the blades 15 and 16 as shown in FIGS. 2 and 8.
From the upper part of the gap 25 to the desired position to cut the stem while applying the stem of the tomato seedling A held in the left hand to the groove 12 for applying the seedling provided on the blade receiver 9 from above. Plug in.

Next, when the right hand holding the cutter is lightly grasped, the free end sides 21 and 22 of the two flexible blades 15 and 16 fixed to the grasping piece 2 move forward and move toward the V-shaped blade receiving body 9. The blades 17 and 18 approach each other as they descend along the slits 13 and 14, and finally come into contact with each other at the intersection of the V-shaped lower ends of the slits 13 and 14.

By this operation, the lower end of the stem supported on the V-shaped slits 13 and 14 is sharply cut into a V-shape as shown in FIG.

In the above embodiment, the blade receiving body 9 shown in FIG.
Since it has a detachable structure, several types of blade receivers 9 having different angles and depths of the V-shaped slits 13 and 14 of the blade receiver 9 are prepared according to the type of seedling, The blade receiver 9 can be replaced if necessary, but the blade receiver 9 and the grasping piece 3 are not necessarily removable.

〔The invention's effect〕

The present invention is a cutter used for grafting seedlings as described above, and has the following effects.

(1) From above the gap 25 between the two blades 15 and 16 provided in the inverted “C” shape, as shown in FIG. 2 and FIG. Insert the stem of the seedling to the 12 and position the desired position for cutting the stem, and grasp the cutter piece 2, 3
The free end side 21,22 of the two flexible blades 15,16 fixed to one grasping piece 2 in an inverted "C" shape by simply grasping
Is a V-shaped slit 13,1 formed in the other grasping piece 3.
Along the line 4, the stems of the seedlings are simultaneously moved in the direction of pushing down and the direction of pushing them forward, and the bottom end of the seedlings can be accurately cut into a V shape without moving.

Therefore, with a simple operation, the stems of seedlings can be accurately cut for grafting, the work efficiency is more than double that of the conventional one, and since no skill is required, it is easy to secure operators for grafting seedlings. There is.

[Brief description of drawings]

The drawings illustrate a cutter used for grafting seedlings according to the present invention. FIG. 1 is a perspective view of the cutter, and FIG. 2 is a cutter showing a state before cutting the stem of the seedling installed in the cutter. Perspective view, FIG. 3 is a plan view of the blade, FIG. 4 is a partial perspective view of the tip portion of the grasping piece 2, FIG. 5 is a partial perspective view of the tip portion of the grasping piece 3, and FIG. 6 is a blade receiver 9 FIG. 7 is a perspective view of a cut seedling, and FIG. 8 is a sectional view taken along line AA of FIG. In the figure, 1 is a grasping body, 2 and 3 are grasping pieces, 5 and 6 are slits, 9 is a blade receiving body, 12 is a concave groove, 13 and 14 are slits, 15 and 16 are blades, 17 and 1
8 is a cutting edge, 21 and 22 are free end sides of the blade, and 25 is a gap.

Claims (1)

[Claims] 1. A flexible V-shaped grasping body 1 which can be opened and closed with the rear ends of the two blades 17 and 18 having two flexible blades 15 and 16 facing downward. Is fixed to the inner surface of the tip of the grasping piece 2 in the shape of an inverted "C", and the inner surface of the tip of the other grasping piece 3 is provided with a concave groove 12 along the width direction of the grasping body 1 at the center. The blade receiver 9 provided with V-shaped slits 13 and 14 is provided so as to correspond to the free end sides of the blades 15 and 16 and the surface of the concave groove 12 is directed obliquely upward, and the V-shaped slits 13 and 14 are provided. A cutter used for grafting seedlings, in which a part of the free end sides 21, 22 of the two blades 15, 16 are movably inserted in the upper part of the.