JP2003038030A - Graft clips - Google Patents

Abstract

(57) [Problem] To provide a conventional graft clip having a single connecting portion, sufficient strength of the connecting portion cannot be obtained, and the connecting portion is plastically deformed by operation of an opening / closing portion. There is a possibility that a desired grip size or grip force may not be obtained by the pair of grip portions. In particular, when the graft clip is repeatedly used, the strength of the connecting portion may be further reduced, and a desired gripping dimension or gripping force may not be obtained.
Further, if the connecting portion is configured to be heavy in order to increase the strength of the connecting portion, the amount of bending of the connecting portion cannot be sufficiently obtained, and the relative turning amount of the pair of turning portions due to the operation of the opening / closing portion is insufficient. However, there is a possibility that the distance between the pair of grip portions cannot be increased to a desired size. SOLUTION: There is provided a pair of turning parts 4 each composed of a holding part 2 and an opening / closing part 3 for opening and closing the holding part 2, and the pair of turning parts 4 are connected by a plurality of connecting parts 5, 6. The grafted clip was connected and integrally formed.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a graft clip for holding a spikelet seedling and a rootstock seedling by gripping their joints. 2. Description of the Related Art For example, as shown in Japanese Patent Application Laid-Open No. 8-317727, a pair of rotating parts comprising a grip part and an opening and closing part for opening and closing the grip part are provided. There is a resilient grafting clip in which a pair of rotating portions are connected by a single connecting portion serving as a rotating central portion between a grip portion and an opening / closing portion and integrally formed. In this graft clip, a pair of opening / closing portions are pinched so that the two are close to each other to bend the connecting portion, and the pair of gripping portions are opened so that the two are separated from each other with the connecting portion as a center. By supplying the hypocotyl of the scion seedling and the stock seedling between the parts and releasing the holding operation of the opening / closing part, the pair of holding parts is returned with a restoring force, and the scion seedling and the stock seedling with the pair of holding parts. Are held together and fixed. [0003] In the above-mentioned conventional graft clip, since the connecting portion is formed as a single piece, the strength of the connecting portion is not sufficiently obtained, and the connecting portion is operated by operating the opening / closing portion. The portion may be plastically deformed and a desired gripping dimension or gripping force may not be obtained by the pair of gripping portions. In particular, when the graft clip is repeatedly used, the strength of the connecting portion may be further reduced, and a desired gripping dimension or gripping force may not be obtained. Further, if the connecting portion is made heavy in order to increase the strength of the connecting portion, a sufficient amount of bending of the connecting portion cannot be obtained, and the relative turning amount of the pair of turning portions due to the operation of the opening / closing portion is reduced. Insufficiently, the distance between the pair of gripping portions may not be able to be increased to a desired size. [0005] In order to solve the above problems, the present invention takes the following technical means. That is, there is provided a pair of rotating portions 4 each composed of a grip portion 2 and an opening / closing portion 3 for opening and closing the grip portion 2, and the pair of rotating portions 4 are connected by a plurality of connecting portions 5 and 6. And a graft clip integrally formed. In the graft clip according to the present invention, a plurality of connecting portions are deformed by operating a pair of opening / closing portions to open a pair of holding portions 1, and a scion seedling and a rootstock seedling are interposed between the pair of holding portions 1. By releasing the operation of the opening / closing part, the deformation of the plurality of connecting parts is returned to the original state by the restoring force, and the pair of holding parts are closed to hold and hold the spikelet and rootstock seedling together. Therefore, in the graft clip of the present invention, since a plurality of connecting portions are deformed to open and close the pair of gripping portions, a sufficient opening / closing amount and gripping force can be obtained. [0007] Therefore, a sufficient amount of opening and closing and a sufficient gripping force can be obtained by the pair of gripping portions, so that the operation of fixing the scion seedlings and the rootstock seedlings by the grafting clips can be easily performed, and the bonding can be performed in an appropriate bonding state. And the grafted seedlings can be satisfactorily joined. An embodiment of the present invention will be described with reference to the drawings. The graft clip 1 includes a pair of left and right rotating parts 4 each having a grip part 2 and an opening / closing part 3, and a first connecting part 5 provided between the grip part 2 and the opening / closing part 3 and an end of the opening / closing part 3. The pair of left and right rotating parts 4 is connected to the second connecting part 6 provided. The graft clip 1 is integrally formed of polyethylene, and has a symmetrical shape in the left-right direction and the up-down direction. A plurality of ridges 2b each having a width of 0.5 mm or less are provided on the grip surface 2a inside the pair of right and left grip portions 2 in the vertical direction. A wing-shaped projection 7 is provided on the outside of the grip 2 at the center in the vertical direction. The first connecting portion 5 is configured to have the same width in the up-down direction as the grip portion 2, and has a configuration in which an end surface 5 a on the front side (grip portion side) has a V-shaped corner in plan view. , End face 5 on the rear side (opening / closing section side) in plan view
b has an arcuate concave shape and has no corner. The second connecting portion 6 is configured to have the same width in the up-down direction as the opening / closing portion 3 and is formed in a curved shape in a plan view so that the left and right center is located on the front side (grip portion side) in a normal state. Note that the vertical width of the grip portion 2 is larger than the vertical width of the opening / closing portion 3. Then, when the operator grasps the pair of left and right opening / closing sections 3 and performs the sandwiching operation, the first connecting section 5 and the second connecting section 6 are opened.
Is bent, and the pair of left and right rotating parts 4 relatively rotate about the first connecting part 5 serving as the center of rotation, and the pair of left and right gripping parts 2 are opened. At this time, the left and right center of the second connection portion 6 moves forward (toward the grip portion side), and bends so that the curvature increases in plan view. Then, this joint is supplied with the cut surfaces of the spikelets and rootstock seedlings between the pair of left and right gripping parts 2 with the hypocotyls of the seedlings and rootstock seedlings directed vertically, and the opening / closing part 3 is released. As a result, the pair of grip portions 2 are returned by the restoring force of the first connection portion 5 and the second connection portion 6, and the scion seedlings and the rootstock seedlings are gripped and fixed together by the grip portions 2. The grafting clip 1 can be used for a grafting robot that automatically cuts and cuts the seedlings and rootstocks, and automatically fixes the joints of the grafting seedlings. This grafting robot uses grafting clip 1
And a clip opening / closing actuator for automatically opening and closing a pair of gripping portions at the grafting position. Also, a clip feeder for sequentially supplying the grafting clips 1 to the rail is provided at the transport start end of the clip supply rail, and a plurality of grafting clips 1 are supplied to the clip feeder to drive the clip feeder. Thus, the graft clip is supplied to the clip supply rail by the vibration of the clip feeder. In this clip feeder, since the grafted clip 1 is provided with the wing-shaped projections 7 on the gripping side, which is the front side, the projections 7 make the grafted clip 1 an appropriate weight while being made of polyethylene resin. The graft clip 1 can be stably supplied to the supply rail or the clip supply rail. Further, since the grip portion 2 which is the front end of the graft clip 1 becomes heavy, the graft clip 1 is stably supplied to the clip supply rail from the grip portion 2 side. In addition, grafting clip 1
However, if it is made of polyethylene resin, it may become too light and may become jammed in the clip supply rail, and supply by the grafting robot may become unstable. In addition, the graft 7 can be guided to the clip supply rail by the projection 7, so that the graft 1 can be supplied in an appropriate posture, and the supply of the graft 1 on the clip supply rail can be performed stably. Further, since the graft clip 1 is integrally molded, there is no catching portion such as a conventional ring-shaped spring, and the supply of the graft clip 1 by the clip supply rail can be performed stably. As described above, the grafting clip 1 includes a pair of turning parts 4 each composed of a grip part 2 and an opening / closing part 3 for opening and closing the grip part 2. And are integrally formed by connecting with the connecting portions 5 and 6. Therefore, a sufficient opening / closing amount can be obtained for the pair of gripping portions 2, so that the operation of fixing the spikelets and rootstock seedlings by the graft clip 1 can be easily performed, and the gripping force of the pair of gripping portions 2 can be obtained. The hypocotyl of the scion seedling and the rootstock seedling can be prevented from being displaced in the gripping portion 2, and can be joined in a proper joining state, so that the grafted seedling can be favorably joined. Further, the second connecting portion 6 is connected to the rear end of the graft clip 1 (the opening / closing portion 3) which is the longest from the first connecting portion 5.
(The end portion of the clip 1), the strength of the connection between the pair of rotating portions 4 can be increased, and the breakage of the clip 1 can be prevented. In addition, when the pair of grips 2 are opened, the second connecting portion 6 moves right and left center to the front side (grip 2 side) and bends so that the curvature becomes large in the original bending method in plan view.
The pair of grips 2 can be opened smoothly, and the grafting operation can be facilitated. The second connecting portion 6 may be bent in a wave shape in a plan view, whereby the second connecting portion 6 can be smoothly bent, and the grafting operation can be facilitated. Further, since the grafted clip 1 is molded from polyethylene, not only is it lighter and the handleability is improved, but also the soft grafted seedling of the hypocotyl can be prevented from falling due to its own weight. The conventional graft clip is heavy because it is molded with a general resin, and there is a possibility that a grafted seedling having a soft hypocotyl may be knocked down. Further, since the molding is made of polyethylene, the production cost can be reduced, and since incineration does not generate dioxin, it can be incinerated. In addition, since it is molded with polyethylene, it becomes translucent, which is the material color of polyethylene, and can be a color that avoids colors that pests such as blue and yellow are likely to approach, which is a countermeasure against pests. The first connecting portion 5 has a configuration in which the front surface (the grip portion 2 side) end surface 5a of the first connecting portion 5 has a V-shaped corner so that the pair of rotating portions 4 can pivot. The grafted seedling can be fixed and stable, and the grafted seedling can be gripped by the pair of gripping portions 2 at an appropriate gripping position and gripping force. Moreover, since the end face 5b on the rear side (opening / closing section side) of the first connecting portion 5 in plan view has an arcuate concave shape and has no corner,
Stress concentration at one location of the first connection portion 5 when opening and closing the pair of grip portions 2 can be avoided, and damage to the graft clip 1 can be prevented. Conventionally, since the connection portion has a rear end (opening / closing portion side) in a plan view in an arc-shaped convex shape, the pair of grip portions are not smoothly opened and closed.
In addition, the integrated graft graft clip was liable to break due to stress concentration. The gripping surface 2a of the gripping portion 2 has a width of 0.5 m.
m, so that the grafted seedlings that have been gripped can be firmly gripped, the spikelets and rootstock seedlings are less likely to be displaced, and the hypocotyl is about 0.5 mm in diameter. The vascular bundle is less likely to be crushed, and the vascular bundle allows the grafted seedling to absorb sufficient nutrient water to achieve good joining and seedling of the grafted seedling. Note that a spherical projection may be used instead of the above-mentioned ridge. Conventionally, the width of the ridge on the gripping surface of the gripping portion is relatively large, and there is a possibility that the vascular bundle of the hypocotyl may be crushed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a graft clip. FIG. 2 is a plan view of a graft clip. FIG. 3 is a rear view of the graft clip. FIG. 4 is a side view of the graft clip. [Description of Signs] 1 ... Grove clip, 2 ... Grip section, 3 ... Open / close section, 4 ... Rotating section, 5 ... First connection section, 6 ... Second connection section

Claims (1)

Claims 1. A pair of rotating parts 4 comprising a grip part 2 and an opening / closing part 3 for opening and closing the grip part 2 are provided. Grafted clips integrally connected by connecting portions 5 and 6.