JPH06178620A - Grafting device - Google Patents

Abstract

PURPOSE:To provide a grafting method suitable for mechanization and automation, improving workability of grafting operation while widening bonding sections similarly with cleaving grafting in graftage. CONSTITUTION:A stem of a scion H is held on a supporting bar 33 of a scion retaining part 3 and the lower part of the stem of the scion is fixed to a supporting plate 42 and a supporting rod 41 of a scion fixing part 4. A stem of a stock D is fixed to a grasping grip 53 of a stock fixing part 5. Cutters 24a and 25a at a cutting part 2 are arranged in a V-shape and the cutting part 2 is linearly transferred toward the scion retaining part 3 and the stock fixing part 5. The stem of the scion is cut in a wedge shape by the cutters 24a and 25a and the stem of the stock is cut in a V-shape. The top of the cut scion is linearly transferred, stopped at a position of the bottom of the cut stock and the cut section of the stem of the scion and that of the stock are brought into contact with each other to bond the cut sections. The bonded part is fixed by a clip C engaged with a folk 28c.

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 grafting plants, and more particularly to a grafting device suitable for mass-producing seedlings of horticultural crops such as vegetables and fruit trees.

[0002]

Conventionally, grafting has been widely performed for the purpose of imparting disease resistance to plants, regulating tree vigor, promoting fruit set, increasing yield, improving quality and the like. In addition, grafting is performed by methods such as split grafting, cutting grafting, and calling grafting, but among them,
The split grafting is widely used because the survival rate is not so much influenced by the size of the seedlings, so that it is relatively easy to manage after grafting, and the joining surface is wide and there is little separation or breakage of the graft. ing.

[0003]

By the way, as shown in FIG. 16 (A), the split grafting is such that the lower part of the scion is cut into a wedge shape and the upper part of the rootstock is passed vertically through the central part of the stem. Cut down, as shown in the same figure (B), insert the cut part of the stem of the rootstock into a wedge-shaped part of the rootstock, and fix this joint with clips, bands, tape, etc. for grafting Is.

For this reason, the split joint has the advantages as described above, but in some cases the cuts of the rootstock are spread out in a V-shape by the spikes, so that they cannot be sufficiently fixed. Further, since the scion must be inserted while opening the cut line of the rootstock, there is a problem that workability is poor and the process becomes complicated in the case of mechanization and automation.

SUMMARY OF THE INVENTION An object of the present invention is to provide a graft device which facilitates fixation of the joint portion while widening the joint surface similarly to split grafting, has good workability and is suitable for mechanization and automation.

[0006]

The grafting device of the present invention, which has been made to solve the above-mentioned problems, has a V-shape formed by thin blades.
A cutting unit that holds the V-shaped cutting cutter and moves the cutting cutter on a preset straight line; a root fixing unit that fixes the root of the root on the straight line on which the cutting cutter is moved; A scion holding part that movably holds a stem of a scion on a straight line along which a cutting cutter is moved, and the scion holding part is temporarily stopped between a movement start point of the cutting part and the rootstock fixing part. And a scion holding means for releasing the scion holding part after the stem of the scion held by the scion holding part is cut by the cutting cutter, and the scion holding part by the scion fixing means A cutting means for cooperating the spike holding portion with the cutting portion after being released, and a spike stopping means for stopping the spike holding portion at the position of the root fixing portion. By moving the cutting part, the cutting cutter holds the scion holding part. The stem of the rootstock is cut by cutting the stem of the rootstock and the stem of the rootstock fixed by the rootstock fixing unit, and the cutting surface of the stem of the rootstock moved in cooperation with the cutting unit is the stem of the rootstock. It is characterized in that it is stopped at the position of the cutting surface so that the scion and the rootstock can be joined.

[0007]

According to the grafting device of the present invention, in the state before grafting, the scion holding portion is provided in the direction in which the cutting portion moves, and further the rootstock fixing portion is provided in front of it. Therefore, when the stem of the rootstock is fixed to the rootstock fixing unit and the stem of the earstock is held in the earstock holding unit and the cutting unit is moved, the movement of the cutting unit cutting unit is started by the earring fixing unit. It is temporarily retained between the point and the rootstock fixing portion and is released when the stem of the spikelet held by the spike holding portion is cut by the cutting cutter due to the movement of the cutting portion. After that, the spike holding unit is cooperated with the cutting unit by the cooperation means, and the cutting cutter moves the cutting unit to cut the stem of the root fixing unit. Then, the scion holding unit is stopped at the position of the rootstock fixing unit by the scion stopping means, and the cutting surface of the stem of the scion held by the scion holding unit and the rootstock fixed by the rootstock fixing unit. The cut surfaces of the stalks are joined.

Here, since the cutting cutter is formed into a V-shape with a thin blade, a wedge-shaped cut surface of the stem of the scion and a V-shaped cut surface of the stem of the rootstock are provided. Are aligned with each other and the cut surfaces are in perfect contact. Therefore, as in the case of split grafting, the joint surface is wide and the grafting part is less likely to separate or break. In addition, since the cut surfaces are aligned with each other, it can be joined without expanding the cuts in the stem of the rootstock like split grooving, or the joint surface of the rootstock and the earstock can be simply moved by moving the top of the earstock linearly. Since the positions of can be easily matched, workability is good and it is suitable for mechanization and automation.

[0009]

FIG. 1 is a front view of a grafting device according to an embodiment of the present invention,
2 is a view on arrow AA in FIG. 1, and FIG. 3 is a view on arrow BB in FIG. In the following description, the left side of FIG. 1 will be referred to as the front and the right side will be referred to as the rear, corresponding to the traveling direction of the cutting cutter when cutting the stem.

In the figure, two edges are provided on the rear edge of the base 10.
The columns 20A and 20B are erected, and the columns 2
A track portion 1 located above the base 10 is attached to the upper ends of the 0A and 20B, and the track portion 1 has a cutting portion 2 for cutting a stem and a stem of the rootstock, and an upper portion of the spike. Each of the scion holding portions 3 for holding is slidably held. Note that, in FIG. 3, the scion holding portion 3 is shown in a state of being moved to the position of the chain double-dashed line in FIG. 1.

Further, the base plate 10 is provided with a rootstock fixing portion 4 for fixing a lower part of the rootstock substantially in the center thereof, and a rootstock fixing portion for fixing the rootstock to a front end. 5 are provided. Further, at the rear end of the track portion 1, a clip accommodating portion 6 for accumulating and accommodating a clip C for fixing the joint portion of the scion and the rootstock is arranged.

(Track portion 1) The track portion 1 is provided with two sets of upper and lower horizontal slide shafts 12 and 13, each of which is composed of two slide shafts held by a frame 11. The horizontal slide shafts 12 and 13 are The cutting section 2 is slidably held by the upper slide shaft 12 and is located at a position passing substantially above the center of the base 10, and the spike holder 3 is slidably held by the lower slide shaft 13. ing.

A bolt-type stopper 14 arranged in parallel between the slide shafts 12 is attached to the front end of the frame 11 of the track portion 1, and the cutting block 2 includes a bearing block 21 of the frame 11. Rear end and stopper 1 above
It is possible to move horizontally within the range of contact with 4. Also,
On the lower slide shaft 13, the scion fixing part 4 and the rootstock fixing part 5 are provided.
Block-shaped stoppers 15 and 16 approximately above
Is attached, and the spike holder 3 has a bearing block 31.
Is movable horizontally within a range where it contacts the stoppers 15 and 16. In addition, the stopper 16 constitutes a scion stopping means.

(Cut Section 2) The cut section 2 is a bearing block 21.
Two base plates 22 extending vertically downward from both sides of the
Each of the base plates 22 and 23 is provided with a cutter portion 24, 25 on the front end surface of the lower portion thereof, and each cutter portion 24, 25 is a thin blade having a semi-circular shape with a blade formed on the circumference thereof. Cutters 24a and 25a are provided respectively.

As shown in FIG. 2, the cutters 24a, 2a
5a is a fixing block 24d, 25 with bolts 24c, 25c together with protection plates 24b, 25b such as acrylic plates.
d is fixed to each of the fixed blocks 24.
d and 25d are base plates 2 by bolts 24e and 25e.
2 and 23 are attached respectively. In addition, as shown in FIG. 1, the rear side base plate 23 is formed wider than the front side base plate 22 in the front side, whereby the cutter 25a is disposed slightly in front of the cutter 24a. Has been done.

As shown in FIG. 4, the cutters 24a, 2
The surfaces of 5a are in contact with each other at their lower ends about the vertical line and
They face each other at an angle of -30 degrees, which constitutes a thin blade V-shaped cutting cutter. The cutters 24a and 25a are moved by the movement of the cutting portion 2 as shown by the arrows in FIG. 4, cutting the upper part of the front stalk into a wedge shape and cutting the lower part into a V shape.

A ball plunger 26 for cooperating the scion holding portion 3 with the cutting portion 2 is arranged substantially above the cutter portion 24 of the base plate 22 on the front side. The ball 26a is arranged on the back side of the base plate 22 so as to face the slide shaft 13 below the track portion 1.

Further, a horizontal arm 27 extending forward is attached to the lower part of the base plate 23 on the rear side, and the cutting section 2 is provided with the spiker fixing portion 4 at the tip of the horizontal arm 27.
An L-shaped vertical arm 27a for interlocking with the above operation is attached, and the lower end of this vertical arm 27a is set so as to pass through the upper end of the scion fixing part 4.

A clip receiving mechanism 28 for receiving the clip C from the clip accommodating portion 6 is attached to the rear side of the lower ends of both base plates 22 and 23. The clip receiving mechanism 28 is reinforced by a reinforcing plate 28a. And horizontal plates 28b fixed to the base plates 22 and 23, respectively,
As shown in FIG. 5, a fork 28c is formed on the horizontal plate 28b so as to project rearward and face each other in parallel.

The distance between the forks 28c facing each other is set to be slightly wider than the width when the clip C is opened in parallel, and each fork 28c has a gap a consisting of two claws. As shown in FIG. 5, with the spring C-1 of the clip C passing through the gap a, the restoring force of the clip C holds the clip C between the forks 28c.

In addition, in the clip receiving mechanism 28, at the lower part of the horizontal plate 28b on the rear side, as will be described later, the spike fixing fixing bolt 28d for interlocking the spike fixing portion 4 with the operation of this cutting portion. And a gripping clip opening bolt 28 for interlocking the root fixing part 5 with the operation of the cutting part.
e and e are respectively arranged so as to project.

(Spike Holder 3) The spike holder 3 is provided with a base plate 32 extending vertically downward from the bearing block 31, and the lower end of the base plate 32 has the stem of the upper portion of the spike. A support rod 33 for supporting from the front side is attached in the vertical direction, and a horizontal bar 34 is attached on the back side of the support rod 33. A fixing block 35, which is composed of a rectangular block and a handle, is rotatably supported in the center of the horizontal bar 34 so as to be horizontally rotatable.

A spring 36 is arranged between the tip of the handle of the fixing block 35 and the tip of the horizontal bar 34, whereby the fixing block 35 contacts the support bar 33 with the block. It is urged to touch. As shown in FIG. 6, the surface of the support rod 33 facing the fixing block 35 is a concave surface 33 a having a vertical groove that fits the stem of the scion, and further, the support rod 33 has a concave surface 33 a. The tip portion is formed in a wedge shape corresponding to the meeting angle of the cutting cutters 24a and 25a for passing the cutting cutters 24a and 25a.

On the other hand, on the front side of the bearing block 31, the balls 26 of the ball plunger 26 in the cutting section 2 are provided.
The ball plunger receiving plate 37 with which the a abuts is attached, and the ball plunger receiving plate 37 and the ball plunger 26 are arranged such that the balls 26a of the ball plunger 26 are connected to the front and rear edges of the ball plunger receiving plate 37. It is set so that you can overcome it. The ball plunger receiving plate 37 and the ball plunger 26 constitute a cooperating means for cooperating the scion holding portion 3 with the cutting portion 2.

(Spike fixing section 4) The scion fixing section 4 constitutes a scion fixing means by the supporting section and the fixing section. The support portion includes a support rod 41 vertically provided on the base 10 and a support plate 42 horizontally attached to an upper end of the support rod 41. As shown in FIG. Notch 42a for positioning and supporting the stem of the scion on the side
The side surface of the support rod 41 is formed with a concave surface 41a which is a vertical groove for positioning and supporting the stem continuously with the cutout portion 42a.

On the other hand, the fixed portion is a fixed shaft rod 43 which is erected on the base 10 on the rear side of the support rod 41 of the support portion.
And a substantially L-shaped rotating arm 44 that is horizontally rotatably supported on the upper end of the fixed shaft rod 43. As shown in FIG. 3 and FIG. The ball plunger 45 is attached to the rear side of the fixed shaft rod 43, and the engagement block 46 and the fixing block 47 are attached to the front side of the fixed shaft rod 43. A spring 48 is arranged between the rear end of the rotating arm 44 and the rear column 20B, whereby the fixing block 47 of the rotating arm 44 is attached to the supporting rod 41 of the supporting portion. It is urged to come into contact.

Further, the engaging block 46 is formed with a stepped portion 46a having a recessed front side, and a vertical arm 27a attached to the horizontal arm 27 of the cutting portion 2.
By moving the cutting portion 2 to the rear side, the lower end portion of the vertical arm 27a is moved to the step portion 46a of the engaging block 46.
Is arranged so as to abut. Further, the ball plunger 45 on the rotating arm 44 moves the cutting portion 2 forward so that the horizontal plate 28b of the clip receiving mechanism 28 is moved.
Is arranged so that the spike fixing release bolt 28d protruding to the lower part of the abutment.

(Rootstock fixing part 5) The rootstock fixing part 5 is a support 5
1. A horizontal plate 52 fixed to the upper end of the horizontal plate 52 is provided with a gripping clip 53 and a support block 54 on the upper surface. The gripping clip 53 fixes the stem of the rootstock, and the support block 54 cuts the stem of the rootstock. Is configured to support the cut portion of the from the front side.

As shown in FIG. 7, in the gripping clip 53, a main driving claw 53A and a driven claw 53B are rotatably supported by a horizontal plate 52, and the main driving claw 53A and the driven claw 53B are parallel to each other in the front-rear direction. The gear 53A-1 arranged and fixed to the driving claw 53A and the gear 53B-fixed to the driven claw 53B.
1 and 1 are in mesh with each other. Also, the driving claw 53A
A spring 53a is arranged between the tip of the handle and the front support column 20A, so that the driving claw 53A and the driven claw 53B are urged in a state in which the tips are closed.
The gripping clip opening bolt 28e protruding to the lower portion of the horizontal plate 28b of the clip receiving mechanism 28 is moved by the cutting portion 2 to move the driving claw 5 of the gripping clip 53.
It is arranged so as to contact the side surface of the handle 3A.

On the other hand, the support block 54 is attached to the rear end of a horizontal rod 56 which is slidably held in the front-rear direction by a bearing block 55 attached to the front end of the horizontal plate 52. A spring 57 is arranged between the front end of the horizontal rod 56 and the column 51. As a result, the support block 54 is biased rearward. Note that FIG. 7 shows a state where the spring 57 is stretched.

Further, arcuate notches for receiving the stems of the rootstock D are formed at the rear end portions of the support block 54 and the horizontal plate 52, respectively. Also, the support block 5
4 and the upper surface of the bearing block 55, a groove portion 54 through which the lower ends of the cutters 24a and 25a of the cutting portion can pass.
a and 55a are formed.

(Clip Housing 6) Clip Housing 6
Includes a vertically arranged loading rail 61 and a clip release box 62 provided at the lower end of the loading rail 61. The loading rail 61 has a large number of clips C passed through a vertical bar 61a. It is stacked. The clip release box 62 is a box-shaped member whose front side and upper surface are opened and notches 62a are formed on both side surfaces, and the lower end of the vertical bar 61a extends to the upper surface of the clip release box 62. It is said that.

As a result, the clip C in the clip release box 62 can be freely taken out from the front opening, and when the clip C is taken out from the clip release box 62, the next clip on the loading rail 61 falls and automatically. Will be replenished.

Next, the procedure of the grafting work and the operation of the apparatus in the embodiment will be described. At the end of one operation of the grafting work, the cutting section 2 is returned to the rearmost position, the fork 28c of the clip receiving mechanism 28 is inserted into the clip release box 62 of the clip accommodating section 6, and the clip is inserted between the forks 28c. C is received and the next operation is started from this state. When the cutting unit 2 is moved rearward, the scion holding unit 3 moves in cooperation with the cutting unit 2, and the scion holding unit 3
Is stopped with the bearing block 31 in contact with the stopper 15. That is, the support rod 33 is stopped at a position directly above the support plate 42 of the spike fixing unit 4.

First, in this state, the base D is attached to the base fixing portion 5
Position, and the stem of the rootstock D is fixed by being sandwiched between the grip clips 53 of the rootstock fixing portion 5. Further, as shown in FIG. 9, the fixing block 35 of the spikelet holding portion 3 is manually opened against the elastic force of the spring 36, and the stem of the spikelet H is fixed along the concave surface 33a of the support rod 33. The block 35 for fixing is fixed. Further, in the state where the cutting portion 2 is returned to the rearmost position as described above, as shown in FIG. 9, the horizontal arm 2 of the cutting portion 2 is
Since the lower end of the vertical arm 27a attached to 7 contacts the stepped portion 46a of the engaging block 46 and the rotating arm 44 is rotated against the elastic force of the spring 48, The lower part of the stem of the retained scion is arranged along the notch 42a of the support plate 42 and the concave surface 41a of the support rod 41.

Then, the cutting part 2 is moved toward the scion and the rootstock and stopped at the front end. As a result, in the rootstock fixing portion 5, the earstock is joined to the rootstock and the joining portion is fixed by the clip C. In this state, the stalk of the rootstock is released from being fixed by the gripping clip 53 in the rootstock fixing portion 5, so that the stalk of the rootstock H is released from the support rod 33 of the earbud holding portion 3 and the fixing block 35. , Remove and graft is complete.

That is, when the cutting part 2 is moved forward from the rearmost position as shown in FIG. 1, the vertical arm 27a is separated from the engaging block 46 of the spike fixing part 4, so that the elastic force of the spring 48 causes the rotating arm to move. 44 rotates, and the lower part of the stem of the scion is fitted and fixed to the concave surface 41 a of the support rod 41 by the fixing block 47 attached to the rotating arm 44. When the cutting section 2 continues to advance, the stems of the spikes H held and fixed by the spike holding section 3 and the spike fixing section 4 are the cutters 24a, 25 of the cutting section 2.
The upper part of the stem of this spike H is cut by a.
It is cut into a wedge shape as shown in (A).

When cutting the stalk with the cutter, one of the cutters (in this example, the cutter 24) is located in front of the other, so that when cutting the stalk, one blade is used to cut the stalk, thus reducing the resistance. It is soft and can cut even thin stems easily and the cut surface is finished neatly.

When the stem of the scion is cut and the cutting section 2 is further advanced, the balls 26a of the ball plunger 26 of the cutting section 2 are moved to the ball plunger receiving plate of the scion holding section 3, as shown in FIG. Since it abuts on the rear edge of 37, the spike holding unit 3 is advanced together with the cutting unit 2 while holding the upper portion of the spike H. At this time, the cutting surface of the stem of the spike H is held between the cutters 24a and 25a in a state immediately after cutting.

Further, when the cutting section 2 and the scion holding section 3 are advanced, as shown in FIG. 12, the stems of the rootstock D fixed to the rootstock fixing section 5 are cut by the cutters 24a and 25a. At the same time, as shown in FIG. 12, the spike fixing releasing bolt 28d protruding to the lower part of the horizontal plate 28b of the clip receiving mechanism 28 abuts on the ball plunger 45 on the rotating arm 44, thereby rotating. The arm 44 is temporarily rotated so that the fixing block 47 moves the support rod 4
A cut piece of the stem of the spike H is dropped at the spike fixing unit 4 apart from 1.

On the other hand, the lower part of the cut stem of the rootstock is shown in FIG.
As shown in (B), it becomes V-shaped, and the outer surfaces of the cutters 24a and 25a slide along the V-shaped cutting surface of the stem of the rootstock by the advancement of the cutting portion 2 and the scion holding portion 3. Be moved. Then, when the cutting portion 2 and the spikelet holding portion 3 advance from the state of FIG. 12 and the support rod 33 of the spikelet holding portion 3 comes to the position of the grip portion of the grip clip 53, the bearing block of the spike holder 3 31
Comes into contact with the stopper 16 on the front side, the spike holder 3 stops, and the stem of the spike H held by the support rod 33 is fixed to the stem fixing portion 5 on the stem D of the root D. In the state of being stopped at, the scion holding unit 3 is released from the cutting unit 2. As a result, as shown in FIG. 8C, the cutting surface of the stem of the scion and the cutting surface of the stem of the rootstock are brought into close contact with each other.

Further, at this time, the ball 26a of the ball plunger 26 of the cutting portion 2 rides over the ball plunger receiving plate 37 of the spike holder 3, and only the cutting portion 2 is further advanced to the position shown in FIG. During this time, the clip C of the fork 28c of the clip receiving mechanism 28 is fitted to the joint between the spike H and the root D in the root fixing portion 5, and the front end of the fork 28c abuts the support block 54. Then, the support block 54 moves forward together with the cutting portion 2 against the elastic force of the spring 57. Clip C at this time
Is in contact with the stalk, the clip C is separated from the fork 28c against the restoring force of the elastic force of the spring of the clip C due to the forward movement of the cutting portion 2, and the joint portion of the stalk is fixed. .

On the other hand, as the cutting portion 2 further advances, as shown in FIGS. 10 and 13, the gripping clip opening bolt 28e projecting below the horizontal plate 28b of the clip receiving mechanism 28 is gripped by the gripping clip 53. Driving claw 5
The grip clip 53 is opened by abutting on the side surface of the handle 3A and pushing the handle inward. by this,
The rootstock after the grafting is completed can be taken out from the rootstock fixing portion 5, and the rootstock H after the grafting is completed by releasing the fixation of the rootstock H by the support bar 33 of the earring holder 3 and the fixing block 35. And the spikes can be removed.

When the rootstock and the scion that have been grafted are removed and the cutting unit 2 is retracted, the balls 26a of the ball plunger 26 of the cutting unit 2 are retained at the position of the rootstock fixing unit 5. Ball plunger support plate 3 of holding part 3
It contacts the front edge of 7, and the scion holding part 3 retracts together with the cutting part 2. The bearing block 3 of the spike holder 3
When 1 comes into contact with the stopper 15 and the spike holder 3 is stopped above the spike fixing portion 4 and only the cutting portion 2 is further retracted, the fork 28c is the clip release box of the clip supply portion 6 at the rearmost position. Inserted in 62, fork 28
Clip C is set in c. This will allow you to perform the next grafting task.

As described above, the grafting is completed simply by setting the scion and the rootstock and moving the cutting section 2 linearly, so that the grafting work becomes extremely easy and the working efficiency is remarkably improved. Further, since the joint surface of the graft is wedge-shaped and V-shaped, which are cut by the same thin blade cutter, the joint surface becomes a split joint, and the survival is stable.

Although the cutting section 2 is manually moved in the above embodiment, it may be driven by a motor or an air cylinder. Also, the cutter 24
Although a semicircular shape is used as a and 25a, the shape is not limited to this, and a cutter having another shape such as a disk-shaped cutter shown in FIG. 14 or an oblique blade type cutter shown in FIG. 15 is used. May be fixed in a V shape and used. Further, the stems of the rootstock and the scion are not limited to being fixed by clips, but may be fixed by laminating with an adhesive tape, or fixed by winding.

[0047]

As described above, according to the grafting device of the present invention, the cutting portion for linearly moving the V-shaped cutting cutter formed of thin blades, and the straight line on which the cutting cutter is moved, The rootstock fixing part for fixing the rootstock stem and the spikelet holding part for movably holding the stem of the rootstock are arranged, and the spikelet holding means serves as a starting point of movement of the cutting part. The scion holding part is temporarily retained between the scion holding part and the scion holding part held by the scion holding part is cut by a cutting cutter, and then the scion holding part is released. After the spike holding section is released with the cutting stand, the spike holding section cooperates with the cutting section, and the spike holding means stops the spike holding section at the root fixing section. When the cutting cutter cuts the stem of the spikelet held by the spike holder by moving it Cut the stem of the rootstock fixed by the rootstock fixing part, and stop the cutting surface of the stem of the scion moving in cooperation with this cutting part at the position of the cutting surface of the rootstock. You will be able to join the stem and rootstock.

Therefore, the wedge-shaped cutting surface of the stem of the scion and the V-shaped cutting surface of the stem of the rootstock are aligned with each other, and the joint surface is wide like the split graft, and the joint surface is wide. Less separation and breakage. In addition, since the cut surfaces are aligned with each other, it can be joined without expanding the cuts in the stem of the rootstock like split grooving. Since the positions of can be easily matched, the workability is good and it is suitable for mechanization and automation.

[Brief description of drawings]

FIG. 1 is a front view of a grafting device according to an embodiment of the present invention.

FIG. 2 is a view on arrow AA in FIG.

FIG. 3 is a view taken along the line BB in FIG.

FIG. 4 is a perspective view of a cutter in the embodiment.

FIG. 5 is a partial perspective view of a clip holding portion in the embodiment.

FIG. 6 is a perspective view of a part of the spike holding portion and the spike fixing portion in the embodiment.

FIG. 7 is a perspective view of a root fixing portion in the embodiment.

FIG. 8 is a perspective view of a cutting portion and a cutting portion of a rootstock and a joined state in the example.

FIG. 9 is a diagram for explaining the operation of the spike holding unit and the spike fixing unit in the embodiment.

FIG. 10 is a diagram for explaining the operation of the rootstock fixing portion in the embodiment.

FIG. 11 is a diagram showing a state at the start of movement of the scion holding unit in the embodiment.

FIG. 12 is a diagram showing a state when the rootstock is cut in the example.

FIG. 13 is a diagram showing a state when the rootstock and the scion are joined and fixed in the embodiment.

FIG. 14 is a diagram showing an example of a disc type cutter applicable to the present invention.

FIG. 15 is a diagram showing an example of a diagonal blade type cutter applicable to the present invention.

FIG. 16 is a diagram illustrating a conventional split stitch.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Orbital part, 2 ... Cutting part, 3 ... Scion holding part, 4 ... Scion fixing part, 5 ... Root holding part, 24a, 25a ... Cutter.

Claims (2)

[Claims] 1. A cutting unit that holds a V-shaped cutting cutter formed of thin blades and moves the cutting cutter on a preset straight line, and a rootstock on the straight line on which the cutting cutter is moved. A rootstock fixing part for fixing the stem, a scion holding part for movably holding the stem of the scion on a straight line on which the cutting cutter is moved, and a starting point for moving the scissor holding part for the scion holding part. A scion fixing means for releasing the scion holding part after the stem of the scion held by the scion holding part is temporarily stopped between the scion holding part and the cutting cutter, Cooperating means for cooperating the spike holding part with the cutting part after the spike holding part is released by the spike fixing part, and stopping the spike holding part at the position of the root fixing part. And a cutting unit by moving the cutting unit. And cutting the rootstock stem that the rootstock fixing portion is fixed together with cutting the stem of the rootstock held by the earstock holding part with a cutter,
The cutting surface of the stem of the scion moving in cooperation with the cutting portion is stopped at the position of the cutting surface of the stem of the rootstock so that the rootstock and the rootstock can be joined. Grafting equipment to be. 2. The scion fixing means fixes the lower part of the scion stalk held by the scion holding portion to cut the stalk of the scion by the cutting cutter, and then the scion is cut. The grafting device according to claim 1, wherein the grafting device is configured to release the holding portion.