JPH0442979Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to a seedling transplanter that plants seedlings held in a rotating planter part into a field as the machine moves. This invention relates to a seedling holding device in a seedling transplanter in which a root clamping part provided on a planter part that rotates in conjunction with the planter automatically opens wide at a seedling supply position to easily supply seedlings.

Conventional technology In a seedling transplanter, seedlings such as sweet potato are held in a planter section that rotates as the machine moves, and are planted in the field as the machine moves. A seedling holding device is known in which a root holding portion and a leaf tip holding portion are provided to hold seedlings, but conventionally, the root holding portion of this seedling holding device is parallel to the front end side of the planter portion. The base of the seedling is manually pushed between the opposing claws provided on the top of the seedling, or one of the parallel claws is forcibly opened using a cam mechanism. However, it becomes troublesome to push the seedlings by hand between the opposing claws when the claws are closed, and even if one of the claws is forced open, the opening width of the claws is insufficient, making it difficult for the driver to open the claws. It is difficult to manually hold the seedlings between the narrow opposing spaces, and the seedlings often come off from the root holding part of the rotating planter, making it impossible to feed the seedlings smoothly.

Problems to be Solved by the Present Invention The present invention was devised to solve these problems in view of the above-mentioned actual situation, and its purpose is to When the gripping part comes to the seedling supply position, it automatically opens wide to facilitate the gripping operation of the seedlings, and the seedlings do not come off from the root gripping part, making it possible to reliably feed the seedlings. It is an object of the present invention to provide a seedling holding device for a seedling transplanter that can smoothly carry out planting work.

Means for Solving the Problems In order to solve the above-mentioned problems, the technical means adopted by the present invention is to hold the seedlings at the seedling supply position in a planter section that rotates in conjunction with the movement of the machine. In a seedling transplanter that is detached from the planting position and planted in the field, a seedling-carrying pillow is provided on the front end side of the planter section and has a concave portion for supporting the root end of the seedlings, and the seedling-carrying pillow is A clip-shaped root clamping part that can be opened and closed and is biased in the closing direction via a bullet is provided at the rear, and the root clamping part can be moved between a seedling supply position and a planting position in conjunction with the rotation of the planter part. The root clamping part is formed to be recessed into the planter part, and the root clamping part is provided with an inclined part that reduces the opposing distance, so that when the root clamping part is retracted, the inclined part slides into contact with and is pressed against a fixing pin provided in the planter part. It is characterized in that the base clamping part is configured to open against the bullet.

Effects of the invention This invention has taken the above technical measures, so
When planting seedlings such as sweet potato, first run the machine along the ridges, the planter section will rotate in conjunction with the running of the machine, and the root gripping part provided on the planter section will come to the seedling supply position. Then, I immersed myself in the planta side. Then, the inclined part provided on the root clamping part slides into contact with the fixing pin of the planter part, and as it retracts, the fixing pin pushes open the opposing gap that decreases in the inclined part, so that the clip-shaped root clamping part It resists and becomes wide open. At this time, if the driver presses and supports the root end of the seedling against the recess formed in the seedling support pillow, the root side of the seedling can be easily held by the root gripping parts. Next, when the root clamping part passes the seedling supply position, it protrudes from the planter part and the fixing pin separates from the slope part, so the root clamping part is biased in the closing direction via the spring and securely clamps the root part of the seedling. . When the root clamping part reaches the planting position in the field, it retracts into the planter side and becomes open, allowing the clamped seedling to be released and planted in the field. Therefore, the seedlings can be sequentially supplied to the root holding portion that has come to the seedling supply position, and the planting operation can be carried out smoothly.

Embodiments Examples of the present invention will be described in detail with reference to the accompanying drawings. Reference numeral 1 is a sweet potato seedling transplanting machine, in which an engine 5 is mounted on a body frame 4 having front wheels 2 and rear wheels 3;
A rotating shaft 6 that rotates in conjunction with the travel of the aircraft body is provided at an intermediate position between the two.

7, 7... are a plurality of mounting arms protruding radially from the rotating shaft 6, and the mounting arms 7, 7, . . .
7... has a connecting arm 8 pivotally connected to its tip side,
Planters 9, 9, . The cam body 11 is biased and supported via a roller 12 in a pressing manner. In addition, the cam body 11 is formed with a linear portion 11a that guides the planter 9, which rotates concentrically with the rotation shaft 6, from the vicinity of its lowermost position to the vicinity of the rotation shaft 6. The running locus of the seedling holding surface 13 formed on the surface forms a boat bottom shape at the lowest planting position.

Reference numeral 14 is a rod-shaped seedling support pillow provided on the front end side in the rotation direction of the planter 9, and at the tip of the seedling support pillow 14, as shown in FIG. A semicircular recess 1 that supports the end of a
4a is formed.

Reference numeral 15 denotes a root clamping part provided close to the rear of the seedling support pillow 14, and the root clamping part 15 is attached to the tip of the shaft 17 which slidably passes through the mounting seat 16 of the planter 9. By pivoting the base ends of the gripping claws 18, 18, it is formed into a clip shape that can be opened and closed, and is normally biased in the closing direction by a torsion spring 19 wound around the pivot 18a. has been done. A rotating arm 20 is pivotally attached to the planter 9, and one end of the rotating arm 20 is locked via a pin 21 to the base end of a shaft 17 that passes through the mounting seat 16, so that it can rotate. Arm 2
A roller 22 is pivotally supported at the other end of the roller. 23
24 is a lower cam body attached to the cam body 11, and 24 is an upper cam body. When the planter 9 reaches the planting position A shown in FIG.
The rotating arm 20 rotates when it comes into contact with the shaft 1.
7 to retract the root clamping part 15 into the planter 9 side. When the planter 9 reaches the seedling supply position B, the roller 22 comes into contact with the upper cam body 24, the rotating arm 20 rotates, and the root clamping part 15 retracts into the planter 9, but the amount of retraction at this time is The upper cam body 24 is attached so that the number of cams is smaller than that at the planting position, and the tip of the root holding part 15 slightly protrudes from the planter 9. 2
Reference numeral 5 denotes a bullet that urges the shaft 17 in the projecting direction.

As shown in FIG.
On the other hand, the planter 9 has a fixing pin 2 located between the opposing inclined parts 26, 26.
7 is planted, and when the root holding part 15 is recessed into the planter 9 side, the fixing pin 27 is attached to the inclined part 2.
6, and as it retracts, the gripping claws 18, 18
The gripping claws 18, 18 are pushed open to widen the reduced opposing distance, resisting the bias of the torsion spring 19. Reference numeral 28 denotes a leaf tip clamping portion made of an elastic body and provided on the rear side of the planter 9.

5, 6, 7, and 9 show other embodiments, and FIGS. 5 and 6 show the clamping claws 18, 18 of the root clamping part 15 formed in a clip shape.
Punching holes 29, 29, . . . are opened in the holes 29, 29, . be.

Further, FIG. 7 shows a guide portion 3 projecting above the seedling holding surface 13 from the outer periphery of the side plates 31, 31 of the planter 9.
2, 32... are bent to the side of the planter 9 and expanded upward.

Further, in FIG. 9, guide portions 33, 33, . It is something.

In the above-described configuration, when planting sweet potato seedlings, the machine body is first run along the ridges, and the planter 9 rotates together with the rotating shaft 6 in conjunction with the running of the machine body. When the root holding part 15 provided on the planter 9 reaches the seedling supply position B, the roller 2
2 comes into contact with the upper cam body 24, and the root clamping part 15 retracts to a position slightly protruding from the planter 9, while the clamping claws 18, 18 open wide, so the driver can use his or her fingers to pick up the seedlings as shown in FIG. If the root end of a is pressed against the seedling support pillow 14, the seedling a can be easily held between the opposing gripping claws 18, 18, and the end of the seedling a can be supported by the seedling support pillow 14. Since the semicircular recess 14a is formed, the seedling a will not fall off. Then roller 2
2 gets over the upper cam body 24, the root clamping part 15 protrudes from the planter 9, and the torsion spring 1
9 in the closing direction, the root part of the seedling a can be reliably held, and as the planter 9 rotates, the hand-supported seedling a is aligned along the seedling holding surface 13. , the leaf tip portion can be held by the leaf tip holding portion 28. When the planter 9 reaches the planting position A, the roller 22 comes into contact with the lower cam body 23, and the root clamping part 15 opens wide while sinking into the planter 9 again, so that the seedling a is detached and planted in the ridge. It can be smoothly implanted in the correct position.

In the case shown in Fig. 5 and Fig. 6, the punched hole 2
9, 29... The burrs 29a and the burrs 30 when punching and forming the clamping claws 18 increase the sliding resistance between the root of the seedling and the clamping claws 18, so the planter 9 rotates while supporting the seedlings by hand. When the seedling is placed along the seedling holding surface 13 of the seedling, the seedling will not come off from the root holding part 15.

Moreover, the one shown in FIG.
2 is expanding upward, so seedling a is placed on seedling holding surface 1.
3, and even if the seedling is bent, the seedling a will not get stuck between the opposing guide parts and be lifted up when planting, as shown in the conventional example in Fig. 8. , it is possible to prevent the occurrence of stock shortages, etc.

Furthermore, in the one shown in FIG.
Since the areas of 3 and 33 are small, even if the petiole A is bent and grows from the stem as shown in Fig. 11, the bent part B will pinch the guide part as in the conventional example shown in Fig. 10. There is no possibility that the seedlings will get stuck between the opposing guide portions, and the seedlings will not be lifted up with the planter 9 during planting, resulting in missing plants.

Effects of the Invention In short, the present invention provides a seedling transplanter in which the planter part, which rotates in conjunction with the movement of the machine body, holds the seedlings at the seedling supply position, releases them at the planting position, and plants them in the field. A seedling support pillow is provided on the front end side of the planter section, and has a concave portion for supporting the roots and ends of the seedlings, and at the rear of the seedling support pillow is an opening/closing mechanism that is biased in the closing direction via an elastic device. A freely clip-shaped root clamping part is provided, and the root clamping part is formed so as to be recessed into the planter part at the seedling supply position and the planting position in conjunction with the rotation of the planter part. A sloped portion is provided to reduce the facing distance, and when the root gripping portion is retracted, the sloped portion slides into contact with a fixing pin provided on the planter portion and is pressed, so that the root gripping portion opens against the bullet. Therefore, when the planter reaches the seedling supply position, the root clamping part automatically opens, so that the seedling can be easily clamped by the root clamping part by simply pressing the base of the seedling against the seedling support pillow. Moreover, since the concave portion of the seedling support pillow supports the end portion of the seedling, the seedling can be reliably supplied to the planter portion without coming off from the root holding portion. Then, at the planting position, the root gripping part opens again and immerses into the planter side to release the seedlings, so it has extremely useful practical effects such as the ability to smoothly plant seedlings as the machine moves. It is something to play.

[Brief explanation of the drawing]

The drawings show an embodiment of the seedling holding device in the seedling transplanter according to the present invention, in which FIG. 1 is a side view of the main part, FIG. A side view of the pillow, FIG. 4 is a front view of the essential parts of the above, FIG. 5 is a side view showing another embodiment of the root holding part, FIGS. 6A and B are perspective views of the essential parts of the above, and FIG. 7 A and B are a front view and a side view showing another embodiment of the guide part, FIG. 8 is an explanatory diagram showing a conventional example, FIG. 9 is a side view showing still another embodiment, and No. 10 is a conventional example. Fig. 11 is an explanatory drawing showing bent seedlings, Fig. 12 is an explanatory drawing showing bent seedlings.
The figure is an overall side view of the seedling transplanter. In the figure, 1... Seedling transplanter, 9... Planter section, 1
4... Seedling mounting pillow, 15... Root clamping part, 26...
Inclined portion, 27... is a fixing pin.

Claims (1)

[Scope of utility model registration request] In the planter part that rotates in conjunction with the movement of the aircraft,
In a seedling transplanter that holds seedlings at a seedling supply position, detaches them at a planting position, and plants them in a field, the seedling holder has a recess formed on the front end side of the planter section to support the root end of the seedlings. A pillow is provided, and at the rear of the seedling-carrying pillow there is provided a clip-shaped root clamping part that can be opened and closed and is biased in the closing direction via an elastic device, and the root clamping part is linked to the rotation of the planter part. The root clamping part is formed to be recessed into the planter section at the seedling supply position and the planting position, and the root clamping part is provided with an inclined part that reduces the facing distance, so that when the root clamping part is retracted, the slope part is inserted into the planter part. 1. A seedling holding device for a seedling transplanter, characterized in that the root clamping portion is opened against a bullet when slidably pressed against a fixed pin provided therein.