JP2003088241A - Grafting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grafting apparatus capable of surely carrying out root taking, readily performing positioning of a stock and a scion, smoothly extending a holding body from both sides and extremely simply removing the holding body from the stock and the scion without causing constriction even when the diameter is increased according to the growth of the stock and the scion. SOLUTION: This grafting apparatus 1 comprises the holding body 2 which is formed from an elastic material into a cylindrical shape and has an inserting hole 3 formed for inserting the stock 25 and the scion 26 from openings 16 and 15 and connecting the stock 25 to the scion 26. The cross-sectional shape of the inserting hole 3 is formed into a nearly polygonal shape with a plurality of surfaces 5 to 8. A cleft 10 for separating the one surface 5 from the other surface 8 is formed in a connecting part 30 thereof. The outer peripheral surface 40 of the holding body 2 is composed of the central peripheral surface 41 and lateral outer peripheral surfaces 42 and 43 and the central outer peripheral surface 41 is formed so as to keep the wall thickness (t) of the holding body 2 nearly constant. The lateral outer peripheral surfaces 42 and 43 are tilted and formed so that the wall thicknesses t1 and t2 of the holding body 2 are reduced toward the openings 15 and 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grafting device for connecting a scion to a rootstock and making them live.

[0002]

2. Description of the Related Art A conventional grafting device is disclosed in Japanese Patent Laid-Open No. 9-294.
As disclosed in Japanese Patent Laid-Open No. 465, there is a cylindrical holder, and an insertion hole for inserting and connecting a rootstock and a scion is formed in a circular cross section. Moreover, the wall thickness of the holder was formed to be substantially constant.

[0003]

In the above-mentioned conventional grafting device, since the insertion hole of the cylindrical holding body holds the entire peripheral surface of the rootstock and the scion, even if the stem diameter does not match the diameter of the stem as much as possible. However, there was a problem that the grafting device and the stem had few support points, which was unstable, and there was a problem in retention, resulting in a poor survival rate. Further, there is a problem in that the core cannot be positioned because it cannot be positioned according to the thickness of the rootstock and the scion.

Further, the stem diameter increases with the growth of the rootstock and the scion, but since the thickness of the holding body is constant, the holding power is strong, and the grafting device 50 of FIG. 20 and the rootstock 25 of FIG.
When the bushes 26 and the spikes 26 have moved to the grown state, the grafting device 50 does not come off from the rootstocks 25 and the spikes 26, and the entire peripheral surfaces of the rootstocks 25 and the spikes 26 are tightened, and both ends of the holding body 51. However, there is a problem in that there is a case where it causes a constriction.

The present invention has been devised in view of the above-mentioned problems, and since several points on the peripheral surface of the rootstock and the scion are held, various diameters of stems can be used by using one diameter. It can be used for the grafting of wood, and the positioning of rootstocks and stalks can be performed easily, and even if the diameter increases as the rootstocks and stalks grow, the holder can spread smoothly from both sides. Thus, it is an object of the present invention to provide a grafting device having a novel structure that does not exist in the prior art and can be easily separated from a rootstock and a scion without causing tying.

[0006]

The grafting device according to the first aspect of the present invention has the following means in order to achieve the above object. (A) To have at least one holder. (B) The holder is made of elastic material and has a cylindrical shape, with openings formed at both ends in the longitudinal direction, and insertion holes for inserting and connecting the rootstock and the scion from separate openings. . (C) The insertion hole is composed of a plurality of surfaces extending in the longitudinal direction.
The cross-sectional shape is formed in a substantially polygonal shape, and a crack that separates one surface and another connection surface adjacent to the one surface is formed. (D) The outer peripheral surface of the holding body is composed of a central outer peripheral surface and side outer peripheral surfaces on both sides in the longitudinal direction sandwiching the central outer peripheral surface, and the central outer peripheral surface is formed so that the thickness of the holding body is substantially constant. The side outer peripheral surface is formed to be inclined so that the thickness of the holding body becomes thinner toward the opening.

In order to achieve the above object, the grafting device according to the present invention has the following means in addition to the above means. (A) Consists of two holding bodies and a connecting portion that connects the two holding bodies. (B) The two holding bodies and the connecting portion are integrally formed of an elastic material.

In order to achieve the above object, the grafting device according to a third aspect of the present invention has, in addition to the above-mentioned means, a split formed at a connecting portion farthest from the connecting portion.

In order to achieve the above object, the grafting device according to a fourth aspect of the invention has, in addition to the above-mentioned means, a plurality of surfaces extending in the longitudinal direction of four, and the insertion hole has a substantially quadrangular cross section. .

In order to achieve the above object, the grafting device according to a fifth aspect of the present invention has, in addition to the above-described means, the end edges of both sides sandwiching the crack in a substantially semicircular shape.

In order to achieve the above object, the grafting device according to a sixth aspect of the present invention has a cutting groove formed in the insertion hole at a connecting portion other than the connecting portion where the crack is formed.

[0012]

DETAILED DESCRIPTION OF THE INVENTION A grafting device according to the present invention will be described with reference to the drawings. FIG. 1 is an overall perspective view showing one embodiment of a grafting device. FIG. 2 is a plan view of FIG. FIG. 3 is a sectional view taken along line XX of FIG. Figure 4
It is the front view seen from the A direction of FIG. FIG. 5 shows Y of FIG.
It is a -Y sectional view. FIG. 6 is a plan view for explaining the movement of the grafting device of FIG. 1. FIG. 7 is a front view showing a usage pattern of the grafting device of FIG. 1. FIG. 8 is an explanatory view showing another embodiment of the grafting device. FIG. 9 shows ZZ of FIG.
FIG.

10 to 12 are plan views showing another embodiment of the grafting device. FIG. 13 is a plan view showing still another embodiment of the grafting device. Figure 14
It is the front view which made a partial cross section of FIG. FIG. 15 shows FIG.
It is a front view which shows the usage type of the grafting apparatus of FIG. FIG.
[Fig. 8] is a plan view showing still another embodiment of a grafting device. FIG. 17 is a front view showing a partial cross section of FIG. FIG. 18 is a plan view showing still another embodiment of the grafting device.

The grafting device 1, as shown in FIGS.
It has at least one holder 2. This holder 2
An insertion hole 3 which is formed of an elastic material in a tubular shape and has openings 15 and 16 formed at both ends in the longitudinal direction, into which a rootstock 25 and a spike 26 are inserted and connected from different openings 15 and 16, respectively.
Are formed. The insertion hole 3 has a cross-sectional shape formed into a substantially polygonal shape by a plurality of surfaces 5 to 8 extending in the longitudinal direction, and separates these into one connecting portion 30 of one surface 5 and another surface 8 adjacent thereto. A crack 10 is formed.

The outer peripheral surface 40 of the holder 2 is a central outer peripheral surface 41.
And side outer peripheral surfaces 42 and 43 on both sides in the longitudinal direction sandwiching the central outer peripheral surface 41. The central outer peripheral surface 41 is formed so that the thickness t of the holding body 2 is substantially constant. 42,
43 is formed so as to be inclined so that the wall thicknesses t1 and t2 of the holding body 2 become thinner toward the openings 15 and 16.

The grafting device 21 has two holders 2, 2 and two holders 2, 2 as shown in FIGS.
And a connecting portion 23 for connecting the two holding bodies 2, 2
The connecting portion 23 and the connecting portion 23 may be integrally formed of an elastic material. Further, in this case, the crack 10 may be formed in the connecting portion 30 at the position farthest from the connecting portion 23.

The number of the surfaces 5 to 8 extending in the longitudinal direction may be four, and the cross-sectional shape of the insertion hole 3 may be substantially square. The edges 5a, 8a of the two surfaces 5, 8 sandwiching the crack 10 may be formed in a substantially semicircular shape. Furthermore, the insertion hole 3 has a connection portion 30 in which a crack 10 is formed.
The cut grooves 11 to 13 may be formed in the connection portions 31 to 33 other than the above.

The grafting device 1 will be described in more detail. As shown in FIGS. 1 to 7, the grafting device 1 has a cylindrical holding body 2 formed of an elastic material having elasticity such as a soft synthetic resin material or synthetic rubber. This holder 2
Has openings 15 and 16 formed at both ends in the longitudinal direction, and an insertion hole 3 into which the rootstock 25 and the scion 26 are inserted and connected from different openings 15 and 16, respectively, is formed therein. Insertion hole 3
Has a substantially quadrangular cross section by four surfaces 5, 6, 7, and 8 extending in the longitudinal direction.

A connecting portion 3 between the surface 5 and another surface 8 adjacent to the surface 5.
0 is formed with a split 10 for separating them, a cut groove 11 is formed in a connecting portion 31 between the surfaces 5 and 6, and a cut groove 12 is formed in a connecting portion 32 between the surfaces 6 and 7. The cut groove 13 is formed in the connection portion 33 of the surface 8 and the surface 8. This notch 11
Nos. 13 to 13 are formed in a substantially U shape. Also crack 10
Edges 5a and 8a of the surfaces 5 and 8 on both sides sandwiching are formed in a substantially semicircular shape.

The outer peripheral surface 40 of the holder 2 has a central outer peripheral surface 41.
And side outer peripheral surfaces 42 and 43 on both sides in the longitudinal direction sandwiching the central outer peripheral surface 41. The central outer peripheral surface 41 is formed so that the wall thickness t of the holder 2 is substantially constant. The side outer peripheral surface 42 is formed so as to be inclined so that the wall thickness t1 of the holding body 2 becomes thinner toward the opening 15. Side outer peripheral surface 43
Are formed so as to be inclined so that the wall thickness t2 of the holding body 2 becomes thinner toward the opening 16. As shown in FIGS. 8 and 9, the tapered surface 1 is formed on the periphery of the openings 15 and 16 of the insertion hole 3.
7 and 18 may be formed to facilitate the insertion of the rootstock 25 and the spike 26.

Although the grafting device 1 in which the cross-sectional shape of the insertion hole 3 is formed in a substantially quadrangular shape has been described in the above embodiment, as shown in FIG. 10, the cross-sectional shape of the insertion hole 3a is formed in a substantially triangular shape. Grafting device 1a, a grafting device 1b in which the cross-sectional shape of the insertion hole 3b is formed in a substantially pentagonal shape as shown in FIG. 11, and a grafting device in which the cross-sectional shape of the insertion hole 3c is formed in a substantially hexagonal shape as shown in FIG. It may be 1c.

As shown in FIG. 7, the grafting device 1 having the above-mentioned construction inserts the tip 27 of the rootstock 25 obliquely cut from the lower opening 16 of the insertion hole 3 up to about half of the insertion hole 3 and inserts it into the insertion hole 3. The tip 28 of the spike 26, which is cut obliquely from the opening 15 at the top of 3, is inserted into the insertion hole 3, and the tip 28 of the spike 26 and the tip 27 of the rootstock 25 are connected. Rootstock 25 and scion 2
As shown in FIG. 2, 4 of the peripheral surface of 6 is clamped by the surfaces 5, 6, 7 and 8 of the insertion hole 3, and the tips 27 and 2
8 is held in a connected state.

In this way, the grafting device 1 always holds the rootstock 25 and the scion 26 at four locations even if the stem diameter changes, so that the rooting is reliably performed. In addition, rootstock 25 and scion 2
Even if the diameter increases from D1 to D2 along with the growth of No. 6, as shown in FIG.
Since it spreads around 2, 33, rootstock 25 and scion 2
Four points on the peripheral surface of 6 are sandwiched by the surfaces 5, 6, 7, and 8 of the insertion hole 3. Thus, the grafting device 1 is
Regardless of the thickness of the rootstock 25 and the scion 26, it is always 4
Since the surfaces 5, 6, 7, 8 are held so that the surfaces 5, 6, 7, 8 are pressed toward the center side, misalignment is unlikely to occur.

In this grafting device 1, the polygonal shape is held by the elasticity of the connecting portion between the surfaces. That is, in the grafting device 1, the elasticity of the connecting portion 31 between the surfaces 5 and 6 holds the angle between the surfaces 5 and 6, and the connecting portion 32 between the surfaces 6 and 7 holds the angle between the surfaces 6 and 7. The angle between the surfaces 7 and 8 is held by the connecting portion 33 between the surfaces 7 and 8.

Therefore, since the rootstock 25 and the spikes 26 are sandwiched by the elasticity described above, when the rootstock 25 and the spikelets 26 become thick, each surface 5, against the elasticity of the respective connection portions 31 to 33, is increased.
6,7,8 expand, but each surface 5,6,7,8 does not deform, and even if deformed, each surface is 5,6,7,8
Will pinch four places on the peripheral surfaces of the rootstock 25 and the scion 26. In addition, the cut grooves 11 to 1 are formed in the respective connection portions 31 to 33.
Since 3 is provided, each surface 5, 6, 7, 8 is easily expanded.

In the grafting device of this type, when the rootstock 25 and the scion 26 become thick to some extent, the cracks widen and come off naturally. Since the edges 5a and 8a of the are formed in a semicircular shape, they can be easily removed from the rootstock 25 and the spike 26.

In the grafting device 1, the outer peripheral surfaces 42 and 43 of the holding body 2 on both sides in the longitudinal direction are formed to be inclined, and the thicknesses t1 and t2 of the holding body 2 are directed toward the openings 15 and 16. Since it is thin, the thickness t1 at both ends is
Since t2 is the thinnest and the holding power is weak, as shown in FIG.
When the grafting device 1 of (a) is attached to the rootstock 25 and the spikes 26 and the rootstock 25 and the spikes 26 of FIG. Bends outward and widen, and then comes off the rootstock 25 and the spike 26, so that it can be removed from the rootstock 25 and the spike 26 very easily. Further, as shown in FIG. 20, the grafting device 1 has a weaker holding force at both ends of the holding body 2 as compared with the conventional grafting device in which the thickness of the holding body is constant. There are few problems to cause.

Further, the grafting device 21 is similar to that shown in FIGS.
As shown in FIG. 2, it may be configured to include two cylindrical holders 2 and 2 and a connecting portion 23 that connects the two holders 2 and 2. The two holding bodies 2 and 2 and the connecting portion 23 are integrally formed of an elastic material having elasticity such as a soft synthetic resin material or synthetic rubber, and a rootstock 25 and a scion 26 are provided inside the two holding bodies 2 and 2. An insertion hole 3 for inserting and connecting is formed. The shape of the insertion hole 3 and the shape of the outer peripheral surface 40 are as described above. The crevice 10 is formed in the connecting portion 30 at a position farthest from the connecting portion 23.

In the grafting device 21, the holding bodies 2 can be used one by one as in the grafting device 1. In such a case, when one of the holding bodies 2 is pressed inward (P direction in FIG. 13), the crack 10 of the other holding body 2 is greatly expanded (Q direction in FIG. 13), and the rootstock 25 or It can be attached to the brush 26. Further, as shown in FIG. 15, the insertion hole 3 of one holding body 2 is inserted into the support rod 35 standing on the ground, and the rootstock 25 and the scion 26 are inserted into the other holding body 2 for grafting. The support bar 35 can support the rootstock 25 and the spike 26. Further, by changing the sizes of both the insertion holes 3 and 3, the applicable range of the stem diameter can be further expanded.

The outer shape of the holding body 2 is not particularly limited, and is formed in a circular shape as shown in FIGS. 1 and 13, and also as shown in FIGS. 16 and 17. Of course, the outer shapes of the bodies 2a and 2b may be formed in a substantially rectangular shape, and the holding bodies 2a and 2b arranged on both sides may be formed.
The size of the insertion holes 3d and 3e may be changed. In addition, as shown in FIG.
The position b may be provided at a position near the connecting portion 23.

[0031]

EXAMPLES The holding body 2 has a total length of about 14.5 mm, an outer diameter of about 3.8 to 4.8 mm, and a central outer peripheral surface portion 41 of about 5 mm.
The side outer peripheral surfaces 42 and 43 are approximately 4.75 mm, the center outer peripheral surface 41 has a wall thickness t of the holding body 2 of approximately 10 mm, and the side outer peripheral surfaces 42 and 43 have a wall thickness t1 and t2 that are inclined. Corner about 2
It is formed so as to become thinner toward the openings 15 and 16 at an angle of °.

[0032]

As described above, the present invention claims 1.
In the grafting device, an insertion hole for inserting and connecting the rootstock and the scion is formed in the holding body, and the insertion hole is formed in a substantially polygonal cross section by a plurality of surfaces extending in the longitudinal direction. Since each of the surfaces holds the rootstock and the scion, there is an effect that the rooting can be reliably performed as compared with the conventional grafting device that presses and holds the entire peripheral surface of the rootstock and the scion. Further, since each surface presses the rootstock and the scion toward the center side, there is an effect that the positioning is possible and the misalignment hardly occurs.

In the grafting device according to the first aspect of the present invention, when the rootstock and the scion grow thicker to some extent, the cracks open greatly and come off naturally, but the outer peripheral surfaces of the side portions on both sides in the longitudinal direction are inclined. Since the thickness of the holder on the outer peripheral surface of the side portion becomes thinner toward the opening, the thickness of both ends is the smallest and the holding force is weak. Compared to the conventional grafting device that has a constant wall thickness, there is less problem of causing the rootstock and the scoop to get squeezed. It has the effect of coming off very easily.

The grafting device according to claims 2 and 3 of the present application is provided with two holding bodies having the above effect. When one of the holding bodies is pressed inwardly, the cracks of the other holding body are greatly expanded, and it is as if the clip is made of a clip. In this way, it can be attached to a rootstock or a scion, and by changing the size of both insertion holes, it can be applied to grafts of various thicknesses. By attaching to the support rod, there is an effect that the rootstock and the spike can be supported at the time of grafting with the other holding body.

In the grafting device according to claim 4 of the present invention, the number of the plurality of surfaces extending in the longitudinal direction is four, and the cross-sectional shape of the insertion hole is substantially quadrangular, so that the molding is easy and each of the four surfaces. Holds the rootstock and the scion by pressing them toward the center side, so that there is an effect that the misalignment is less likely to occur.

In addition to the above effects, the grafting device according to the fifth aspect of the present invention has the semi-circular end edges of the surfaces on both sides of the split, so that the rootstock and the scion will easily come off when thickened. There is an effect.

In addition to the above effects, the grafting device according to the sixth aspect of the present invention is such that when the angles between the respective surfaces are formed by the connecting portions between the respective surfaces, and the thickening occurs as the rootstock and the scion grow. , Each surface expands around this connection part, but since this connection part has a notch groove, this expansion is done smoothly, and the peripheral surface of the rootstock and the scion like the conventional grafting device. There is an effect that it is not possible to crimp and constrict.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an embodiment of a grafting device.

FIG. 2 is a plan view of FIG.

FIG. 3 is a sectional view taken along line XX of FIG.

FIG. 4 is a front view seen from the direction A in FIG.

5 is a cross-sectional view taken along line YY of FIG.

FIG. 6 is a plan view illustrating the movement of the grafting device of FIG. 1.

FIG. 7 is a front view showing a usage pattern of the grafting device of FIG. 1.

FIG. 8 is an explanatory diagram showing another embodiment of the grafting device.

9 is a sectional view taken along line ZZ of FIG.

FIG. 10 is a plan view showing another embodiment of the grafting device.

FIG. 11 is a plan view showing another embodiment of the grafting device.

FIG. 12 is a plan view showing another embodiment of the grafting device.

FIG. 13 is a plan view showing still another embodiment of a grafting device.

FIG. 14 is a front view showing a partial cross section of FIG.

FIG. 15 is a front view showing a usage pattern of the grafting device of FIG. 13.

FIG. 16 is a plan view showing still another embodiment of a grafting device.

FIG. 17 is a front view showing a partial cross section of FIG.

FIG. 18 is a plan view showing still another embodiment of the grafting device.

FIG. 19 is an explanatory diagram illustrating an operation of the grafting device.

FIG. 20 is an explanatory diagram illustrating an operation of a conventional grafting device.

[Explanation of symbols]

1 grafting device 1a Grafting device 1b Grafting device 1c Grafting device 2 holder 2a holder 2b holder 3 insertion holes 3a insertion hole 3b insertion hole 3c insertion hole 3d insertion hole 3e insertion hole 5 sides 5a edge 6 sides 7 sides 8 sides 8a edge 10 cracks 10a crack 10b crack 11 notch 12 notch 13 notch 15 Upper opening 16 Lower opening 17 Tapered surface 18 Tapered surface 21 Grafting equipment 23 Connection 25 rootstock 26 Hogi 27 Tip 28 Tip 30 connections 31 Connection 32 connection 33 Connection 35 Support rod 40 outer peripheral surface 41 Central outer peripheral surface 42 Side outer peripheral surface 43 Side outer peripheral surface t wall thickness t1 thickness t2 thickness

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Makoto Ogawa             1 184 Maioka-cho, Totsuka-ku, Yokohama-shi, Kanagawa             Nifco Co., Ltd.

Claims (6)

[Claims] 1. A grafting device having the following requirements. (A) To have at least one holder. (B) The holder is made of elastic material and has a cylindrical shape, with openings formed at both ends in the longitudinal direction, and insertion holes for inserting and connecting the rootstock and the scion from separate openings. . (C) The insertion hole is composed of a plurality of surfaces extending in the longitudinal direction.
The cross-sectional shape is formed in a substantially polygonal shape, and a crack that separates one surface and another connection surface adjacent to the one surface is formed. (D) The outer peripheral surface of the holding body is composed of a central outer peripheral surface and side outer peripheral surfaces on both sides in the longitudinal direction sandwiching the central outer peripheral surface, and the central outer peripheral surface is formed so that the thickness of the holding body is substantially constant. The side outer peripheral surface is formed to be inclined so that the thickness of the holding body becomes thinner toward the opening. 2. The grafting device according to claim 1, wherein the grafting device has the following requirements. (A) Consists of two holding bodies and a connecting portion that connects the two holding bodies. (B) The two holding bodies and the connecting portion are integrally formed of an elastic material. 3. The grafting device according to claim 2, wherein a split is formed at the connecting portion farthest from the connecting portion. 4. The grafting device according to claim 1, wherein the number of the plurality of surfaces extending in the longitudinal direction is four, and the cross-sectional shape of the insertion hole is substantially square. 5. The grafting device according to any one of claims 1 to 4, wherein the edges of the surfaces on both sides of the split are formed in a substantially semicircular shape. 6. The grafting device according to claim 1, wherein the insertion hole has a cut groove formed in a connection portion other than the connection portion in which a crack is formed.