JP2002233240A - Holder for grafted tree - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a holder for a grafted tree, with which since a uniform grip strength is obtained by forming outer peripheral channels even without limiting softness, hardness, etc., of material, a pipe and a formed layer are not overpressured, the success rate of grafting is generally increased and sound seedlings can be grown. SOLUTION: In this holder 10 for a grafted tree having a pair of elastic cylindrical parts 11 and 12 in which a part of peripheral wall is opened by cut channels 111 and 112 and which is mutually connected in such a way that when an external force is applied to one of the part so as to crush the parts, the other is extensively opened and a connection part of a stock X and a scion Y is enclosed by the elastic cylindrical parts 11 and 12, the outer peripheral surface of the elastic cylindrical parts 11 and 12 are provided with outer peripheral channels 14 in the axial direction, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a graft holder for surrounding a joint between a stock and a scion.

[0002]

2. Description of the Related Art As a prior art of this kind, there is one shown in FIG. 3 of Japanese Patent Application Laid-Open No. 9-294465, for example. That is, the prior art grafting holder has a pair of elastic tubular portions interconnected via an outer periphery, and one of the elastic tubular portions accommodates a joint between the rootstock and the scion. Things. Each elastic tubular portion of the grafting holder is formed of a synthetic resin material rich in elasticity, and a peripheral wall facing the interconnecting portion is open, and external force is applied from the outer periphery so as to crush one elastic tubular portion. , The other elastic tubular portion expands.

According to this grafting holder, a rootstock and a scion are inserted into the elastic cylindrical part in a state where the elastic cylindrical part is expanded. Since it is elastically surrounded by the shape, the joint between the rootstock and the scion can be held in a press-fit state until the two stand and grow to a predetermined size.

[0004]

Incidentally, some synthetic resin materials are sequentially cured by external factors such as ultraviolet rays and temperature changes or by internal factors such as aging. When the grafting holder is formed using such a synthetic resin material, the elastic tubular portion surrounding the joint between the rootstock and the scion is not sufficiently expanded with the growth of the plant, and conversely. The joint may be tightened and the conduit or cambium may be over-pressurized, which may cause plant growth to be hindered.

[0005] Such a situation can be solved by limiting the synthetic resin material constituting the grafting holder and using only a material which is hard to be cured by various factors. However, when the material to be applied is limited, the range for selecting a suitable material is narrow, and the operation becomes complicated. Furthermore, depending on the limited material, moldability and mass productivity are inferior,
There is a possibility that another problem may be caused in another aspect, such as difficulty in reducing the manufacturing cost.

In view of the above-mentioned circumstances, the present invention provides a uniform gripping force by providing an outer circumferential groove without limiting soft and hard materials and the like. An object of the present invention is to provide a grafted holder capable of growing healthy seedlings while increasing the rate dramatically.

[0007]

According to the present invention, there is provided a pair of mutually connected peripheral walls such that a part of a peripheral wall is opened, and when an external force is applied from the outer periphery to crush one, the other expands. In a grafting holder having an elastic tubular portion and surrounding the joint between the stock and the scion by the elastic tubular portion,
An outer peripheral groove is provided on the outer peripheral surface of the elastic cylindrical portion along the axial direction.

It is preferable that the outer peripheral groove has a V-shaped cross section that expands in the outer peripheral direction. In addition, it is preferable that an inner circumferential groove is provided in the interconnecting portion connecting the pair of elastic tubular portions along the axial direction from each inner circumferential surface.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments. 1 and 2 show an embodiment of a graft holder according to the present invention. The grafting holder 10 exemplified here is formed of a synthetic resin material having elasticity, and has a pair of elastic cylindrical portions 11 and 12 having different inner diameters. These elastic tubular portions 11 and 12 have a part of the peripheral wall formed by cut grooves 111 and 12.
1 and are integrally formed in a shape in which the outer peripheral portions are connected to each other so that when an external force is applied from the outer periphery so as to crush one, the other expands. The cut grooves 111 and 121 of each of the elastic tubular portions 11 and 12 are
It is provided along each axial direction at a position approximately 180 ° apart from the interconnecting portion 13. Graft holder 10
Any synthetic resin may be used as long as it has elasticity as described above, but a transparent resin is used in order to make it easier to visually recognize the joining state of the graft from the outside. Is preferred. Elastic tubular part 1
The inside diameter and length of 1, 12 may be set to appropriate values according to the plant to be grafted.

As is apparent from the drawing, the grafting holder 10 is provided with an outer peripheral groove 14 and an inner peripheral groove 15 respectively on the outer peripheral surface and the inner peripheral surface. These outer circumferential grooves 1
Each of the inner peripheral groove 4 and the inner peripheral groove 15 has a V-shape whose width gradually increases toward the opening side. Of these, the outer circumferential groove 14 of the graft holder 10 is provided with two elastic tubular portions 11 and 12 respectively.
It is provided at each position, and is formed along the axial direction at a position separated from the above-described cut grooves 111 and 121 by approximately 90 °. On the other hand, the inner circumferential groove 15 of the grafting holder 10 is provided one by one along the axial direction at a position facing the cut grooves 111 and 121 in the interconnecting part 13 of the elastic tubular parts 11 and 12, respectively. It is.

When grafting is performed by the grafting holder 10 configured as described above, first, the elastic tubular portions 11 and 12 corresponding to the sizes of the rootstock X and the grafting Y to be grafted are selected. .

Next, as shown in FIG. 3, the cut groove 111 of the selected one of the elastic tubular portions 11 is expanded so as to expand.
The other elastic tubular portion 12 is pressed so as to be crushed from the outer periphery.

One of the elastic tubular portions 1 expanded from this state.
1 holds the stock X and the scion Y, and removes the above-mentioned external force in a state where the cut surfaces of both are in contact with each other. When the external force applied to the grafting holder 10 is removed, the elastic tubular portion 11 in the expanded state returns to the original shape by the elastic restoring force, and the elastic tubular portion 11 causes the rootstock X and the scion Y to move. The joint can be elastically surrounded with a uniform gripping force.

Finally, the splint Z is attached to the other elastic tubular portion 12.
Is inserted into the ground and pierced into the ground, as shown in FIG. 4, the position of the grafting holder 10 is maintained via the splint Z. X
Until the joint portion of the scaffold Y is brought into close contact and grows to a predetermined size, the two can be held under pressure.

Here, according to the grafted holder 10 described above,
Since two outer peripheral grooves 14 are provided on the outer peripheral surfaces of the elastic tubular portions 11 and 12, external factors such as ultraviolet rays and temperature changes, or
Even when the elastic tubular portions 11 and 12 are hardened due to internal factors such as deterioration with time, as shown by a two-dot chain line in FIG.
The opening can be easily expanded with the portion provided with each outer peripheral groove 14 as a fulcrum. Further, since the inner circumferential grooves 15 are also provided on the inner circumferential surfaces of the elastic tubular portions 11 and 12, the inner circumferential grooves 1 are provided.
The operation of 5 further facilitates the expansion of the elastic tubular portions 11 and 12. Therefore, since the elastic cylindrical portions 11 and 12 are in a state where the joint is pinched with a uniform pressure, the conduit and the formation layer are not over-pressed, and the grafting success rate is dramatically increased. In addition, since the elastic tubular portions 11 and 12 spread under uniform pressure as the hypocotyl of the plant grows, healthy seedlings can be grown without tightening the joints and without giving any shock or stress. Can be done.

In addition, the above-mentioned effect is achieved by the grafting holder 1.
It does not depend on the type of the synthetic resin material constituting 0. As a result, it is possible to select a synthetic resin material for forming the grafting holder 10 in which moldability, mass productivity, or manufacturing cost are the most important, and the elastic cylindrical portion is formed as the plant grows. The high-performance graft holder 10 in which the 11 and 12 expand reliably can be mass-produced at low cost.

In the above-described embodiment, the incision 11 for opening the peripheral wall on the outer peripheral surface of the elastic tubular portions 11 and 12 is provided.
Although the outer peripheral grooves 14 are provided at positions separated from each other by approximately 90 ° from 1, 121, the positions and the number of the outer peripheral grooves 14 are not necessarily limited to these, and are arbitrary. Further, although the outer peripheral groove 14 having a V-shaped cross section has been exemplified, the cross section of the outer peripheral groove 14 may have any shape.

Although the grafting holder 10 in which the inner diameters of the elastic tubular portions 11 and 12 are different is illustrated, the elastic tubular portions 11 and 1
The inner diameters of the two may be the same. Further, the elastic tubular portion 1
Although the graft graft holder 1 and 12 have been illustrated as having a cylindrical shape, the graft graft holder 10 may have a cylindrical shape such as an elliptical shape.

[0019]

As described above, according to the present invention,
Since the outer peripheral groove is provided along the axial direction on the outer peripheral surface of the elastic cylindrical portion, even if the elastic cylindrical portion is hardened by various factors, the portion provided with the outer peripheral groove is used as a fulcrum. It can be easily expanded. Therefore, since the elastic cylindrical portion is in a state where the joint is pinched with a uniform pressure, the conduit and the formation layer are not over-pressed, and the success rate of grafting is dramatically increased. In addition, since the elastic tubular part spreads with uniform pressure as the hypocotyl of the plant grows, healthy seedlings can be grown without tightening the joints and without giving shock or stress. it can. In addition, the above-mentioned effects are not influenced at all by the type of the synthetic resin material constituting the graft holder. As a result, there is no need to limit the synthetic resin material constituting the graft holder at all, and it is possible to manufacture a product by selecting a material that is excellent in moldability and mass productivity and that can reduce the manufacturing cost. Become.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a graft holder according to the present invention.

FIG. 2 is a plan view of the graft holder shown in FIG. 1;

FIG. 3 is a perspective view showing a state where one elastic cylindrical portion is expanded.

FIG. 4A is a perspective view showing a state in which a joint between a stock and a scion is held by crimping using the graft holder shown in FIG. 1;
(B) is a sectional view of the main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Graft holder 11, 12 Elastic cylindrical part 13 Interconnection part 14 Outer groove 15 Inner groove 111, 121 Cut groove X Rootstock Y Grafting Z Splint

Claims (3)

[Claims] 1. A pair of elastic tubular portions interconnected such that a part of a peripheral wall is opened and, when an external force is applied from the outer periphery so as to crush one, the other expands, and In the grafting holder configured to surround the joint between the rootstock and the graft by the elastic tubular portion, an outer peripheral groove is provided along an axial direction on an outer peripheral surface of the elastic tubular portion. Graft holder. 2. The grafting holder according to claim 1, wherein the outer peripheral groove has a V-shape whose cross section expands in an outer peripheral direction. 3. The grafting holder according to claim 1, wherein an interconnecting portion connecting the pair of elastic tubular portions is provided with an inner peripheral groove along an axial direction from each inner peripheral surface. A grafting holder characterized in that: