JP3513258B2 - Grafting clips - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clip for grafting, and more specifically, to a cylindrical holding portion capable of enclosing the base portion of a seedling for rootstock and the ear portion of a seedling for scion, and the length of this holding portion. The present invention relates to the structure of a clip for grafting having a slit formed in the vertical direction and capable of opening and closing.

[0002]

2. Description of the Related Art A grafting device using this kind of grafting clip is a scion transporting conveyor for transporting a tray in which a plurality of seedling pots containing scion seedlings are arranged in a row, and a rooting seedling. And a carrier conveyor for transporting a tray in which a plurality of seedling pots accommodating the seedlings are arranged in a row, and at a predetermined grafting processing position, the spikes are cut from the seedlings for the scion that have been transported as described above. Then, it is a device for automatically joining the cut ears to the pedestal from which the ears have been cut and removed from the seedling for rootstock via the clip.

As shown in FIG. 17, the clip 10 has a holding portion 11 in which a base portion and an ear portion are contained, a slit 12 provided in a length direction of the holding portion 11, and the holding portion. Gripping portion 1 for opening and closing the slit provided on the back surface of 11
In the related art, the cross-sectional shape on the inner diameter side in which the base portion and the spike portion of the holding portion 11 are included is circular. Then, the ear part was inserted on the inner diameter side of the clip 10 applied to the tip part of the base part of the rootstock seedling so that the cutting slope of the base part and the ear part were joined.

[0004]

However, in the conventional clip 10, as shown in FIG. 17 described above, the cross-sectional shape on the inner diameter side in which the base portion and the ear portion of the holding portion 11 are included is circular. Therefore, when the ear part to be inserted is bent, the clip 10 applied to the tip part of the base part.
When inserting the ear part so that the cutting slope of the base part and the cutting slope of the ear part are joined to each other, the clip 10 has a misaligned center position.
There was a risk that the survival rate would be reduced due to the poor insertion into the inner diameter side of the. For this reason, when mechanically grafting with a grafting device, it is necessary to considerably improve the centering accuracy.

Further, according to the conventional clip 10, even if the inserted base portion or ear portion is bent and the joint portion is displaced, the end portion on the opening side of the slit 12 becomes the edge 17. Therefore, even if an attempt is made to press the clip core toward the hole core side, it cannot be moved to the hole core side properly.

The present invention has been made to solve the above problems, and an object thereof is to forcibly insert a hole core even if there is a slight misalignment between the base and the ear of the grafted seedling. An object of the present invention is to provide a clip for grafting that can be moved to the side to be joined and the survival rate can be improved.

[0007]

In order to achieve the above object, the present invention includes a base portion (15) of a seedling (23) for rootstock and a spike portion (14) of a seedling (21) for rootstock. A holding portion (11) having a predetermined length to obtain, a slit (12) extending in the length direction of the holding portion (11), and a grip for opening and closing a slit provided on the back surface of the holding portion (11). A clip (10) for grafting, comprising: a part (13);
The cross-sectional shape on the inner diameter side in which the base portion (15) and the spike portion (14) are included in 1) is orthogonal to the slit (12) and the holding portion (11) in the direction of connecting the inner diameter centers. It is characterized in that it has a substantially rhombic shape with a shorter length in the direction.

Preferably, a chamfer (16) is provided at the end of the slit (12) on the opening side.

[0009]

According to the present invention having the above construction, the cross-sectional shape of the holding portion (11) on the inner diameter side in which the base portion (15) and the spike portion (14) are contained is retained with the slit (12). part (11) by towards the direction of the length orthogonal thereto than in the direction of the length connecting the inner diameter center has a short substantially rhombic, ear portion to be inserted (14) or the base portion (15) to bend like Even when the ear portion (14) or the base portion (15) is inserted while being displaced from the core of the clip (10), when the slit (12) is closed, the clip (1
Due to the gripping force of 0) and the action of the inclined surface on the inner diameter side, the ear portion (14) or the base portion (15) inserted with a shift is naturally moved to the hole core side.

The above-mentioned reference numerals in parentheses are for comparing the drawings and do not limit the structure of the present invention.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. It should be noted that members that are the same as or correspond to the members described in the conventional example are denoted by the same reference numerals.

First, the grafting device to which the grafting clip of the present invention is applied will be outlined with reference to FIG. 1. This grafting device is a scion seedling planted in each seedling raising pot 19 of the row-shaped seedling tray 18. A scion transport conveyor 22 for transporting 21 to the graft processing position, and a root transport conveyor 24 for transporting seedling seedlings 23 planted in each seedling raising pot 19 'of the row-shaped seedling tray 18' to the graft processing position. , At the grafting position,
The ear part cut from the above-mentioned seedling 21 is used as a rootstock seedling 23.
The graft processing means 20 is provided for connecting to the base section from which the ears have been cut and removed.

The graft processing means 20 is a seedling 21 for scion.
The seedling cutting means 25 that clamps (50) the lower part of the seedling shaft of the seedling and cuts it with the cutter 51, and holds the spiked portion cut from the seedling 21 for scooping and carries it to the base of the seedling 23 for rooting. The transport means 26 and the lower part of the seedling shaft of the rootstock seedling 23 are clamped (5
0 ') and cutting with the cutter 51', the rootstock seedling cutting means 27, and the clip supply means 28 for supplying a clip to the root part of the rootstock seedling 23 from which the ears have been cut and removed. The clip supply means 28 includes a clip supply gutter 30 that guides the clips aligned by the parts feeder 29 to the outlet side.

As shown in FIG. 2, the scion seedling 21 is cut by the scion seedling cutting means 25 below the cotyledon position by approximately 1
At 0 mm, it is cut obliquely at an angle of about 30 degrees with respect to the seedling axis. Further, as shown in FIG. 3, the rootstock seedlings 23 are cut by the rootstock seedling cutting means 27 obliquely at a position approximately 5 mm below the cotyledon position at an angle of approximately 30 degrees with respect to the seedling axis. . In addition, the reason why the seedling shaft is cut obliquely as described above is to increase the joint area when the base portion 15 and the spike portion 14 are joined to each other to increase the survival rate.

Then, as shown in FIG. 4, the scion seedling 21
Cutting the ears 14 of the rootstock seedling 23
The clip 10 is joined to the removed base portion 15,
In this case, the clip 10 is placed at the tip of the base 15 in an open state, and the spikes 14 are inserted into the clip 10 so that the cut surfaces thereof contact each other.
After closing 0, press again to finish grafting.

Here, FIGS. 5 (a) and 5 (b) show the external structure of the clip for grafting according to the present invention. In the same figure, this clip 10 is a cylinder of a predetermined length (for example, 13 mm) capable of including a base 15 obtained by cutting and removing the spikes of the rootstock seedling 23 and a spike 14 cut from the seedling 21. -Shaped holding portion 11 and slit 1 extending in the length direction of the holding portion 11
2 and a grip portion 13 for opening and closing the slit, which is provided on the back surface of the holding portion 11 so as to project at a predetermined angle.

FIG. 6 shows the positional relationship between the slit of the grafted seedling and the slit 12. The clip 10 has a base 15 at a position where the cutting slope direction of the base 15 is approximately 90 degrees with respect to the slit 12. It is applied to the tip of 15. As a result, the clip 1 is provided between the cutting slopes of the ears 14 and the base 15.
A large clamping force of 0 is applied to ensure the joining.

In the present embodiment, the cross-sectional shape of the holding portion 11 on the inner diameter side in which the base portion 15 and the spike portion 14 are included is set to be smaller than the length in the direction connecting the slit 12 and the inner diameter center of the holding portion 11. The length in the direction orthogonal to is shorter
It is characterized by having a diamond shape.

That is, as shown in FIGS. 5 (a), 5 (b) and 6, the sectional shape of the holding portion 11 on the inner diameter side is substantially the same.
The shape is rhombic and the length m in the direction orthogonal to the direction is shorter than the length l (ell) in the direction connecting the slit 12 and the center of the inner diameter of the holding portion 11.

According to this clip 10, FIG. 7 (a)
As shown in (b), even when the ear 14 or the base 15 is bent and the ear 14 or the base 15 is inserted while being displaced from the core of the clip 10, the slit 12 is formed.
When the closed the substantially rhombic elastic gripping force of the clip 10
Figure 8 (a) in combination with the inclined surface on the inner diameter side of the shape
As shown in (b), the ear part 14 or the base part 15 inserted with a shift moves to the hole core side, and is surely grafted at a position that matches the hole core.

Furthermore, the clip 10 according to the present invention has the slit 12 as shown in FIGS.
A chamfer 16 is provided at the end on the opening side of.

By this chamfering 16, as shown in FIGS.
As shown in FIG. 6, even when the ear part 14 or the base part 15 is bent and is inserted while being displaced from the core of the clip 10, the seedling insertion protrusion 35a provided at the tip of the clip retainer 35 has the chamfered shape. From the portion opened by 16, the ear portion 14 or the base portion 15 is forcibly knocked into the hole core and moved to the hole core side, so that the graft is surely grafted at a position matching the hole core.

FIGS. 10 and 11 show a state in which the clip 10 is applied to the tip of the base 15 at the grafting processing position and the spike 14 is inserted into the clip 10.

That is, a clip opening / closing mechanism 31 for receiving the clip 10 is arranged immediately below the clip supply gutter 30. The clip opening / closing mechanism 31 has an opening / closing pawl 32 at the front part thereof, and an air cylinder 33 expands and contracts. Opening / closing control is performed by the clip opening / closing mechanism 31, and a clip retainer 35 is disposed on the side of the tip end side of the clip opening / closing mechanism 31.

12 to 14 are views showing a state in which the clip 10 is delivered from the clip supply gutter 30 to the clip opening / closing mechanism 31.

At the outlet of the clip supply gutter 30,
A drop prevention guide 38 is provided which is rotatable about a fulcrum 37 and which prevents the clip 10 from continuously falling. The clips 10 are supplied to the opening / closing claw 32 one by one by the drop prevention guide 38. A stopper 36 is provided to prevent the fall prevention guide 38 from excessively rotating.

On the other hand, the clip opening / closing mechanism 31 is movable back and forth by a linear block 39 and a linear rail 40, and the opening / closing claw 32 moves forward to press the fall prevention guide 38, thereby preventing the fall. The guide 38 rotates about the fulcrum 37 to the retracted position. As a result, the clip 10 of the next order descends and the opening / closing claw 32 retracts, so that the clip 10 of the next order is supplied to the opening / closing claw 32. In this way
The clips 10 are delivered one by one reliably.

The clip 10 is connected to the clip supply gutter 3
When passing from 0 to the opening / closing claw 32 of the clip opening / closing mechanism 31, the fall prevention guide 38 comes into contact with the chamfer 16 of the clip 10 to reliably guide the clip 10, so that the clip 10 can be played and rotated. There is nothing to do.

15 to 16 show a clip opening / closing mechanism 31.
FIG. 4 is a diagram showing a detailed configuration of the opening / closing claw 32, which rotates around an fulcrum 34 by the expansion and contraction of the air cylinder 33, thereby gripping the grip portion 13 of the clip 10, thereby controlling the opening / closing of the slit 12. To be done. Further, a clip retainer 35 rotatable by an air cylinder 41 is arranged on the side of the tip end portion of the clip opening / closing mechanism 31, and the clip opening / closing mechanism 31 is further linearly moved to a grafting position. An air cylinder 42 is provided.

The clip retainer 35 has a seedling insertion projection 35a on the tip side thereof, and when the clip 10 is applied to the base portion 15 or when the spike portion 14 is inserted into the clip 10.
The slit 12 of the opened clip 10 is moved from the outside so as to be closed to push the base portion 15 or the ear portion 14 into the inner diameter side of the clip 10.

Then, according to the present embodiment, FIG.
As shown in (b), since the slit 12 portion of the clip 10 has the chamfer 16, the seedling insertion projection 35a of the clip retainer 35 forces the base portion 15 or the spike portion to the inner diameter side of the clip 10. Since 14 can be pushed in, it is possible to surely join even to a seedling that is bent and decentered.

[0032]

As described above, according to the present invention, the cross-sectional shape on the inner diameter side of the cylindrical holding portion capable of enclosing the base portion and the spike portion is the same as the direction connecting the slit and the center of the inner diameter of the holding portion. By making the shape of a rhombus whose length in the direction orthogonal to this is shorter than its length, even if there is some bend in the base part or ear part to be inserted and the joint part is misaligned, the base part or ear part The portion naturally moves to the hole core side due to the elastic gripping force of the clip and the action of the inclined surface on the inner diameter side, so that the base portion and the ear portion can be reliably joined.

Further, even if the table part or the bristle part to be inserted is slightly bent and the joint part is displaced, the opening side is widened by the chamfer provided at the opening side end of the slit. , The seedling insertion protrusion provided at the tip of the clip retainer forcibly presses the base and the ear toward the hole core,
It can be operated so that it can be knocked in, and the base and the spike can be reliably joined. Further, when the clip is transferred from the clip supply gutter to the opening / closing claw of the clip opening / closing mechanism, the fall prevention guide comes into contact with the chamfered portion to reliably guide the clip, so that the clip does not rotate and play.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a grafting device to which a grafting clip of the present invention is applied.

FIG. 2 is a front view of a seedling raising pot and a scion seedling.

FIG. 3 is a front view of a seedling raising pot and a rootstock seedling.

FIG. 4 is a front view of a seedling raising pot and a grafted seedling.

FIG. 5A is a plan view of a clip for grafting according to the present invention. (B) is a front view of the clip for grafting according to the present invention.

FIG. 6 is a diagram showing a state in which the base portion and the ear portion are grafted by a clip.

FIG. 7A is a plan view showing a state in which the base portion or the ear portion is inserted while being displaced from the center of the inner diameter of the clip. (B) It is the section front view.

FIG. 8 (a) is a plan view showing a state in which a base portion or an ear portion inserted while being displaced from the inner diameter center of the clip is naturally moved to the hole core position and joined. (B) It is the front view.

FIG. 9 (a) is a plan view showing a state in which the base portion or the ear portion inserted with being displaced from the center of the inner diameter of the clip exerts an urging force on the hole core side by the clip retainer. (B) It is the front view.

FIG. 10 is a plan view showing a state in which the clip is applied to the base and the ear is inserted at the grafting processing position.

FIG. 11 is a front view showing a state in which the clip is applied to the base and the ear is inserted at the grafting position.

FIG. 12 is a front view showing a delivery state of clips.

FIG. 13 is a side view of FIG.

FIG. 14 is a plan view of FIG.

FIG. 15 is a plan view of the clip opening / closing mechanism.

16 is a perspective view of an essential part of FIG.

FIG. 17 is a plan view of a conventional graft clip.

[Explanation of symbols]

10 Grafting clip 11 holding part 12 slits 13 grip 14 Hobe 15 units 16 chamfer 21 Seedlings for scion 23 Seedlings for rootstock 30 clip supply gutter 31 Clip open / close mechanism 32 open / close claws 34 fulcrum 35 clip holder 35a seedling insertion protrusion 38 Fall prevention guide

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Koichi Yamamoto Koichi Yamamoto 667 Isuya-cho, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture Mitsubishi Agricultural Machinery Co., Ltd. (56) Reference JP-A-6-121618 (JP, A) Actual Publication 51-12351 (JP, Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) A01G 1/06

Claims (2)

(57) [Claims] 1. A holder having a tubular shape having a predetermined length capable of enclosing the base of a seedling for rootstock and the ear of a seedling for scion, a slit extending in the lengthwise direction of the holder, and the holding. In the clip for grafting, which has a gripping part for opening and closing the slit provided on the back surface of the part, the cross-sectional shape of the inner diameter side in which the base part and the ear part of the holding part are included, the inner diameter center of the slit and the holding part The length in the direction orthogonal to this is shorter than the length in the connecting direction.
Graft-shaped clip for grafting. 2. The clip for grafts according to claim 1, wherein a chamfer is provided at an end portion of the slit on the opening side.