JP2526673Y2 - Seedling feeder of transplanter - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a seedling feeding apparatus for feeding seedlings one by one to a planting nail in a transplanting machine. 2. Description of the Related Art A transplanting machine drives a planting claw up and down while transplanting a seedling into a ridge while moving forward across a ridge with four wheels. The inventor has prototyped a seedling feeding device 43 as shown in FIG. 7 as a seedling feeding device that supplies seedlings one by one to the planting claws. The seedling feeding device 43 of this prototype is applied to a transplanter for sweet potato seedlings, and a seedling holding plate formed in a gutter-like shape by projecting left and right wing pieces holding the foliage of the seedling upward. A clip 45 for holding the root of the seedling is provided on the bottom side of the bottom of the seedling 44, and a large number of seedling holding dishes 44, 44... At the time of use, the endless chain 46 is driven to rotate and circulate using the power of the engine, and when the operator sets the seedlings one by one into the clip 45 from the upper side of the device 43, the seedling holding plate 4
4 rotates and moves to the lower surface side of the apparatus, and the planting claw takes out the seedling at the seedling takeout position 47. [0004] By the way, the seedling is transferred to the device 4
When the seedlings are taken out on the lower surface side of the apparatus 3, the seedling holding plate is turned upside down. The part is easy to hang down. With this droop,
As shown in FIG. 8, the holding posture of the root of the seedling by the clip 45 is inclined, and the seedling cannot be delivered to the planting nail, or there is a possibility that engraftment failure may occur after transplantation due to the poor holding posture of the planting nail. Accordingly, in the prototype device 43, the guide plate 48 is passed from the side surface to the lower surface of the seedling holding tray 44 along the outer side of the rotation locus, thereby preventing the foliage on the side surface and the lower surface of the device 43 from sagging. . [0005] However, since the seedling holding plate 44 has a certain depth, it is difficult to completely prevent the seedlings from hanging down even with this guide plate 48, and the feeding attitude of the seedlings is still varied. Therefore, an object of the present invention is to further improve the prototype device 43 to prevent the inclination of the holding position of the clip 45 due to the hanging of the foliage, and to provide a means for always transferring the clip 45 to the planting nail in a good posture. To be. [0006] In order to achieve the above object,
The seedling feeding device of the transplanter according to the present invention includes a wing piece that holds the foliage of the seedling on the left and right except for the root side of the band-shaped bottom plate on which the seedling is to be placed, and the root of the bottom plate. A clip for holding the root of the seedling is provided on the side to form a seedling holding dish, and an endless chain in which a large number of said seedling holding dishes are installed in parallel is attached to a sprocket arranged at at least three places on the left, right, and below the apparatus. A guide member, which is suspended and extends from a lowering stroke of the endless chain to a seedling removal position on a lower surface of the apparatus, is arranged so as to be viewed from the bottom plate between the wing piece and the clip. According to the present invention, when an operator sets a seedling on the clip of each seedling holding plate at the supply position between the right and left sprockets, the seedling holding plate moves with the rotation of the endless chain,
The seedlings are transferred to a lower sprocket through a downward stroke.
When the seedling comes to the seedling removal position on the lower surface of the device, the planting nail removes the seedling. In the present invention, since the guide member is arranged in the bottom plate between the wing piece of the seedling holding plate and the clip, the seedling is held at two points, the clip and the guide member. For this reason, even if the foliage of the seedling hangs down by its own weight at the seedling removal position on the lower surface of the apparatus, the posture of the root of the seedling does not change due to the holding of the guide member. Therefore, in the present invention, the holding posture of the clip on the lower surface of the device does not tilt, and it is possible to prevent improper delivery to the planting claw and insufficient placement due to poor holding posture of the planting claw. Further, since the guide member is arranged so as to be viewed from the bottom plate between the wing piece of the seedling holding plate and the clip, the turning of the wing piece of the seedling holding plate 44 is performed like a conventional guide plate 48 (see FIG. 7). The movement of the seedlings is more reliably prevented as compared with the case where the seedlings are arranged along the outside of the moving locus. [0010] Further, since the guide member is arranged from the descending stroke of the endless chain to the seedling removal position on the lower surface of the device,
The correct posture of the seedling at the time of seedling supply can be maintained as it is over the entire transfer path of the seedling from the descending step to the seedling removal position. An embodiment of the present invention will be described below with reference to the drawings. 4 and 5, reference numeral 1 denotes a walking type transplanter for implementing the present invention, which has an engine 2 mounted on a fuselage 3, front wheels 4, 4 on the left and right front portions of the fuselage 3, and left and right rear portions of the fuselage 3. And drive wheels 5, 5, respectively, and handles 6, 6 extend to the rear of the body 3. Numeral 7 is a seedling rod provided with a downwardly directed planting claw 20.
It is connected to the tip of a crank arm 10 fixed to the intermittent rotation shaft 9. The intermittent rotation shaft 9 is a Geneva gear mechanism (not shown)
The engine 3 is connected to the engine 2 via a transmission 15 having a built-in gear, and intermittently rotates at a speed proportional to the traveling speed of the body 3. The base 11 of the cutting rod 7 is pivotally attached to the body 3 so as to be freely rotatable. The planting claw 20 is a single-opening type that holds the seedling 37 by two claws, a vertical fixed claw plate and a movable claw plate that opens and closes, and is planted in conjunction with the raising and lowering of the seedling rod 7. An appropriate nail opening / closing mechanism (not shown) for opening and closing the nail 20 is connected. On the other hand, 12 is a seedling supply device for supplying seedlings 37 to the planting claws 20. As shown in FIG. 1, the seedling supply device 12 mounts a number of seedling holding dishes 14 in parallel around an endless chain 13 and attaches the endless chain 13 to left and right sprockets 16 and 17 and a sprocket below the endless chain. 18
It is wound around. As shown in FIG. 6, each of the seedling holding dishes 14 has wing pieces 22, 22 for holding the foliage of the seedling obliquely upwardly protruding on the left and right except for the base side of the band-shaped bottom plate 21. In addition to forming a gutter shape, the base side of the bottom plate 21 is horizontally projected to form a projection 30. A square hole 23 is formed at the end of the projection 30.
And the clip 24 is attached upward through the square hole 23. As shown in FIG. 2, the clip 24 is formed by screwing a spring body 25 having a constricted portion 26 and a guiding slope 27 to a lower end of a fixture 28 so as to face each other. Of the bottom plate 2 of the seedling holding dish 14
1 attached to the lower surface. Spring body 2 on the lower side in the transport direction
5 is an upright posture as compared to the spring body 25 on the better side. The purpose thereof is to prevent the seedling from falling off due to the bending of the lower spring body 25 when the root portion of the seedling is pushed between the two spring bodies 25 by a pushing disk (not shown). A reinforcing leaf spring (not shown) may be provided along the back surface of the lower spring body 25. In FIG. 1, reference numeral 19 denotes a guide plate for guiding the foliage of the seedlings set in each seedling holding plate 14, and extends from the side to a part of the lower surface of the seedling feeding device 12. It is provided along the outside of the rotation locus of the tip of 22,22. Reference numeral 31 denotes a guide member made of a metal bar, and is located at a position immersed between the wing piece 22 and the clip 24.
The bottom plate 21 is fixed by looking outside the rotation locus of the bottom plate 21. The lower end of the guide member 31 is bent in an arc shape along the rotation path of the bottom plate 21, and the upper end of the guide member 31 is connected directly to the upper end of the guide plate 19, thereby forming the endless chain 1.
It is arranged from the descending step 3 to the seedling removal position B on the lower surface of the apparatus. Reference numeral 32 denotes a mounting plate for fixing the guide member 31 to the guide plate 19. As shown in FIGS. 4 and 5, a bevel gear 34 is attached to the drive shaft 33 of the sprocket 16 of the seedling feeding device 12, and further, the bevel gear 35 and the chain 36 Connecting. The operation of the embodiment will now be described. In FIG. 4, when the engine 2 is activated and the body 3 moves forward, its power is transmitted through the transmission device 15, and the intermittent rotation shaft 9 intermittently rotates at a speed corresponding to the traveling speed. The power of the intermittent rotating shaft 9 is transmitted to the seedling feeding device 12 through the chain 36 and bevel gears 35 and 34, and at the same time, the seedling rod 7 through the crank arm 10 and the link 8.
To communicate. As a result, the seedling supply device 12 and the seedling rod 7 are always synchronized with each other and operate intermittently. Then, the worker moves the clip 2 of the seedling holding plate 14 being moved intermittently from the seedling feeding position A on the upper surface of the seedling feeding device 12.
In step 4, the seedlings 37 are set one by one. Seedling 3 set
7 is conveyed laterally to the side of the seedling feeding device 12 on the lower side by the rotation of the endless chain 13. Seedling holding dish 14
Comes near the sprocket 33, the seedling 37 slides in an intersecting manner near the upper end of the guide member 31.
Is guided to a narrow gap between the guide member 31 and the bottom plate 21. Thus, the seedlings 37 of the seedling holding plate 14 are conveyed from the downward stroke of the side surface of the seedling feeding device 12 toward the seedling removal position B on the lower surface of the seedling feeding device 12, where the seedling holding plate 14 faces downward. 3 is as shown in FIG. That is, while the base of the seedling 37 is held by the clip 24, the guide member 31 always slides on the tip side adjacent to the clip 24. When the seedling 37 comes to the seedling removal position B,
The seedlings 37 are received by being pinched by the planting claws 20.
Swivels down and is planted on the ridges 15. Hereinafter, similarly, these operations are repeated, and the seedlings 37 are transplanted at equal intervals by the planting claws 20. As described above, in this embodiment, the guide member 31
The seedling 37 is held at two points, the clip 24 and the guide member 31, as viewed from the bottom plate 21 between the wing piece 22 and the clip 24. Therefore, even if the foliage of the seedling 37 hangs down by its own weight at the seedling removal position B on the lower surface of the seedling supply device 12, the posture of the root of the seedling 37 does not change due to the holding of the guide member 31. Therefore, in the present embodiment, the holding posture of the clip 24 at the seedling removal position B does not tilt, and it is possible to prevent improper delivery of the planting claws 20 and improper rooting caused by the poor holding posture of the planting claws 20. it can. Since the guide member 31 is disposed so as to be viewed from the bottom plate 21 between the wing piece 22 of the seedling holding plate 14 and the clip 24, the gutter is provided like a conventional guide plate 48 (see FIG. 7). The movement of the seedling 37 is more reliably prevented than when the seedling holding plate 44 is arranged along the outside of the rotation locus of the seedling holding plate 44. Further, in this embodiment, since the guide member 31 is arranged from the descending stroke of the endless chain 13 to the seedling extracting position B on the lower surface of the seedling feeding device 12, the seedling 37 is moved to the seedling extracting position B through the descending stroke. There is an advantage that the correct posture at the time of seedling feeding can be maintained as it is over the entire transfer route. In this embodiment, the guide member 21 is formed as a member separate from the guide plate 19, but instead of this structure, the front end of the guide plate 19 is extended toward the bottom plate 21.
The extension itself may be used as a guide member. As described in detail above, in the present invention, since the guide member is arranged in the bottom plate between the wing piece of the seedling holding plate and the clip, the seedling is held by the clip and the guide. It is held at two points with the member. For this reason, even if the foliage of the seedling hangs down by its own weight at the seedling removal position on the lower surface of the apparatus, the posture of the root of the seedling does not change due to the holding of the guide member. Therefore, in the present invention, the holding posture of the clip on the lower surface of the apparatus does not tilt, and it is possible to prevent improper delivery to the planting claw and insufficient placement due to poor holding posture of the planting claw. Further, since the guide member is arranged so as to be viewed from the bottom plate between the wings of the seedling holding plate and the clip, the guide member 48 is turned like a conventional guide plate 48 (see FIG. 7). The movement of the seedlings is more reliably prevented as compared with the case where the seedlings are arranged along the outside of the moving locus. Further, since the guide member is arranged from the descending stroke of the endless chain to the seedling removal position on the lower surface of the device,
There is an excellent effect that the correct posture of the seedlings during the seedling supply can be maintained as it is over the entire transfer path of the seedlings from the descending stroke to the seedling removal position.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a seedling supply device according to an embodiment of the present invention. FIG. 2 is a sectional view showing a seedling holding dish and its clip. FIG. 3 is a cross-sectional view showing the operation of the seedling holding plate and the guide member when the seedling holding plate comes to the lower surface side of the apparatus. FIG. 4 is a side view showing a transplanter for implementing the present invention. FIG. 5 is a plan view showing a transplanter for implementing the present invention. FIG. 6 is a perspective view showing a seedling holding dish. FIG. 7 is a front view showing the seedling supply device before improvement according to the present invention. FIG. 8 is a sectional view showing the operation of the seedling holding plate, the clip, and the guide member when the seedling holding plate comes to the lower surface side of the device in the seedling supply device before improvement according to the present invention. [Description of Signs] 13 Endless chain 14 Seedling holding plate 21 Bottom plate 22 Wing piece 24 Clip 31 Guide member 37 Seedling A Seedling supply position B Seedling removal position

Claims (1)

(57) [Claims for utility model registration] Wing pieces for holding the foliage of the seedling are protrudingly provided on the left and right except for the root side of the belt-like bottom plate on which the seedling is to be placed, and the root of the bottom plate is provided. A clip for holding the root of the seedling is provided on the side to form a seedling holding dish, and an endless chain in which a large number of the seedling holding dishes are installed in parallel is attached to a sprocket in which the left and right sides of the apparatus and at least three places below it are arranged. A seedling feeding device for a transplanter, wherein a guide member extending from a lowering stroke of the endless chain to a seedling removal position on a lower surface of the device is arranged so as to be viewed on the bottom plate between the wing piece and the clip. .