JP2629655B2 - Graft 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 graft clip for grafting a cutting portion between a scion and a stock.

[0002]

2. Description of the Related Art In a construction in which a scion and a stock are cut, a joined portion obtained by overlapping the cut portions is clamped by a graft clip supplied automatically.

[0003]

However, if the gripping portion of the graft clip shifts in the horizontal direction, the graft will be defective and the work efficiency will be reduced.

[0004]

SUMMARY OF THE INVENTION The present invention provides a graft clip capable of smoothly moving the clip and improving the working efficiency, and has taken the following technical means.
That is, a grip portion 2 and an opening / closing portion 3 are provided so as to sandwich the rotation center portion 1 with the rotation center portion 1 therebetween. A graft clip was formed by arranging a rotation projection 13 having a shape and a rectangular hole 14 side by side.

[0005]

The rectangular rotating projection 13 is opposed to the rectangular hole 1.
4. When the opening / closing unit 3 is moved inward, the grip unit 2 is moved outward and opened around the rotation center unit 1 against the force of the spring 10. Next, when the pushing operation to the opening / closing portion 3 is released, the grip portion 2 is closed by the restoring force of the spring 10 to hold the joint portion and finish the grafting operation.

[0006]

[Effect] Since the rotation protrusion 13 of the rotation center portion 1 and the hole 14 into which the rotation protrusion 13 enters are provided in a rectangular shape, the movement of the grip portion 2 in the lateral direction is restricted, and the joint portion of the grafted seedling is formed. The gripping force can be increased to improve the joining rate.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. First, the structure will be described. The operating piece 9 of the graft clip 8 has a grip portion 2 formed in a rectangular shape with wide left and right (horizontal) and vertical (longitudinal) directions in a side view, and a lateral direction of the grip portion 2. An opening / closing portion 3 is formed in the middle portion to be elongated in the vertical direction and is provided integrally with the grip portion 2. The grip portion 2 is provided at an intermediate portion in the horizontal direction of the outer surface and at predetermined intervals in the vertical direction at a predetermined interval in a ring-shaped spring 10 described later.
The inner surface is provided with a plurality of non-slip projections extending from the intermediate portion to the upper end, and the lower end has a mountain-shaped bulging portion 12 extending inward.
Is provided. The swollen portion 12 is provided with a rectangular turning projection 13 and rectangular holes 14 large enough to fit the turning projection 13 at predetermined intervals in the horizontal direction.

The opening / closing section 3 is provided with a groove 5 penetrating both the inner and outer surfaces from the lower end to the upper part of the intermediate portion in the horizontal direction. Then, the operating piece 9 having the above-mentioned configuration is opposed to the rotary projection 13 and the other hole 14 is fitted into the counterpart hole 14 to form the rotary center portion 1. The ring-shaped spring is provided with the groove 5 of each operating piece 9. The grafting clips 8 are formed by inserting the respective tips into the holes 11 while passing the clips.

In the graft clip 8 having the above structure, the projections 4 are integrally provided on the inner surface of the lower end of the opening / closing section 3. It is effective to provide the projections 4 on the inner surfaces of the two opening / closing sections 3, but it is also possible to provide the projections 4 on either one of the opening / closing sections 3. In the embodiment shown in FIG. 4, the projections 4 are provided at positions shifted from the center of the opening / closing section 3 in the lateral direction. The projection 6 is located slightly above the lower end of the opening / closing section 3 and is positioned in the groove 5 so as to be visible.
And is provided integrally. The groove width x where the protrusion 6 is provided is smaller than the wire diameter y of the spring 10 (see FIG. 5).

The projections 7 are formed in the shape of an arc on the inner surface of the grip portion 2, formed long in the moving direction of the grafting clip 8, and provided at predetermined intervals in the horizontal direction. In FIG. 8, the distal end position of the projection 7 located at the lateral end is provided rearward in the moving direction of the graft clip 8 than the distal end position of the projection 7 located at the center. When cucumber seedlings are joined by single-leaf cutting and grafting, the joining position of the grafted clip 8 to the rootstock is about one-third of the cotyledon. Although it may be caught (see FIG. 9), this configuration can improve the grafting accuracy without catching the cotyledons.

In FIG. 10, a projection 7 located at the center is provided.
Is extended to the bulging portion 12 and provided integrally.
The rear end of the projection 7 located at the end of the grip 2 is
When extended to this extent, the extension of the projection 7 may interfere with the rootstock cotyledons and tilt the seedling (see FIG. 12). , The accuracy of the grafting can be improved.

FIG. 14 and subsequent figures relate to the improvement of the center of rotation. That is, since the conventional bulging portion 12 is formed on the surface of the circular arc R as shown in FIG. 13, the rotating protrusion 13 easily comes out of the hole 14 (see FIG. 18). The opening angle β is also small (see FIG. 16). On the other hand, as shown in FIG. 14, the front end and the rear end of the bulging portion 12 are provided on the curved surfaces R1 and R2 and the two curved surfaces are connected by a plane. 12, the length C between the upper surface of the grip 12 and the outer surface of the gripper 2 can be increased.
The hooking between the opening 3 and the hole 14 becomes longer to prevent the opening 3 from coming off (see FIG. 17), and the opening angle α of the gripper 2 can be increased even if the opening angle of the opening / closing section 3 is the same.

Next, the operation will be described. An automatic graft clip feeding device, for example, a device for transferring the clip passage to a predetermined graft clip pushing position while arranging the clip passages in a line by using vibration (this means is described in the applicant of the present invention) When the spring 10 is pushed in the direction of the arrow, the graft clip 8 moves to the graft side, and in this connection, the opening / closing section 3 also has a guide plate having a width smaller than the opening width L (see FIG. (Not shown) and moves inward (in the direction of arrow A) about the rotation center 1 (see FIG. 1). Then, the gripper 2 is moved around the rotation center 1 by the spring 10.
(See FIG. 3). When the restriction on the opening / closing part 3 is released when the grip part 2 reaches a predetermined position, the grip part 2
Due to the restoring force of the above, it is rotated inward (opposite to the direction of arrow B) to pinch the joint between the scion and the stock and finish the grafting operation.
When the opening / closing portion 3 moves inward, if the protrusion 4 is not present, the movement is prevented by the protrusion 4 before reaching the maximum movement. The space surrounded by a part of the outer surface of the spring 10 and a part of the outer surface of the opening / closing part 3 and the inner surface of the spring 10 can be reduced. Therefore, it is possible to prevent the other graft clip 8 from entering the space and to entangle the clips, so that the stability and efficiency of the grafting operation can be improved. In addition, since the opening of the grip portion 2 is restricted, the rotation projection 13 does not fall out of the hole 14 and damage can be prevented by reducing the overload on the spring 10.

Further, as shown in FIG. 4, by providing the projection 4 so as to be deviated in the lateral direction from the center of the opening / closing section 3,
When the operation pieces 9 are opposed to each other, the positions of the two projections 4 are different from each other when viewed from the side, so that only one operation piece 9 is required and the projections can have a sufficient height. Since the protrusion 6 is provided to make the groove 5 partially narrow, particularly at the end on the side opposite to the grip portion 2, the spring 10 of the other graft clip 8 is moved while the graft clip 8 is moving. To prevent intrusion into the groove. Accordingly, it is possible to prevent the grafting clips from being entangled with each other to improve the work efficiency of the grafting work, and to prevent the loss since the spring 10 remains in the groove 5 when the operating piece 9 is separated.

By forming the rotation projection 13 and the hole 14 of the graft clip 8 in a rectangular shape, each operating piece 9
The horizontal end surface flat portion of the rotary projection 13 is received by the flat surface of the hole 14 and is restricted from moving in the horizontal direction. Accordingly, there is no lateral displacement of the operation piece 9 and the gripping accuracy of the grip portion 2 can be improved. And
When the graft clip 8 moves to the grafting side (the side of the joint between the seedling and the rootstock), the gripping part 2 moves in the same direction as it is in an open state. Sometimes. However, since the projection 7 long in the moving direction is also formed in a mountain shape, the projection 7 does not slide and push the seedling even when it comes into contact. Therefore, the clamping accuracy of the grafting operation can be improved.

[Brief description of the drawings]

FIG. 1 is a front view of a graft clip.

FIG. 2 is a side view of a graft clip.

FIG. 3 is a front view of the graft clip in which an opening and closing unit is maximally closed.

FIG. 4 is a side view of the operation piece.

FIG. 5 is a side view of an operation piece provided with a projection.

FIG. 6 is a side view of an operation piece provided with a protrusion on a grip portion.

FIG. 7 is a sectional view taken along the line SS in FIG. 6;

FIG. 8 is a side view of an operation piece having a projection of the first embodiment provided on a grip portion.

FIG. 9 is a view showing an operation of a conventional gripping portion for clamping a joint portion.

FIG. 10 is a side view of a partially cut working piece having a projection of the second embodiment provided on a grip portion.

FIG. 11 is a plan view of an operation piece having a protrusion according to a second embodiment provided on a grip portion.

FIG. 12 is a view in which one of the actuating pieces having protrusions according to the second embodiment provided on the grip portion is removed.

FIG. 13 is a front view of a conventional operating piece having a rotation center.

FIG. 14 is a front view of a graft clip having an improved rotation center.

FIG. 15 is a front view of a partially-removed graft clip having an opened grip portion with an improved rotation center.

FIG. 16 is a front view of a partially-removed graft clip in which a grip portion having a conventional rotation center portion is opened.

FIG. 17 is a front view of a partially cut graft clip with a closed grip with an improved pivot center.

FIG. 18 is a front view of a partially cut graft clip that closes a conventional grip having a rotation center.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotation center part 2 Gripping part 3 Opening / closing part 10 Spring

Claims (1)

(57) [Claims] 1. A gripping portion 2 and an opening / closing portion 3 are provided so as to sandwich a pivoting center portion 1 and a spring 10 is provided for pushing the gripping portions 2 on their closing sides. 13
And a graft clip having a rectangular hole 14 arranged side by side.