JP3404812B2 - Seedling transplanter - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a planting section of a seedling transplanter. Conventionally, when seedlings grown in a seedling box in which a plurality of pots are juxtaposed are loaded into a planting section together with a seedling box, the seedlings are taken out of the seedling box, and the taken-out seedlings are arranged on a pair of left and right sides. There has been a seedling transplanter that conveys with a conveyor belt and receives and seeds the seedlings discharged from the conveyor belt by a planting rod of a seedling planting device arranged at a discharge end of each conveyor belt. [0003] The above-mentioned seedling transplanter is relatively wide so that the interval between the planting lines is 33 cm, and has a drawback that the field cannot be effectively used. is there. Therefore, there is a demand that the interval between the planting strips be 30 cm, which is a narrower general spacing. However, in order to do so, the seedling box needs to be made smaller for the 30 cm strip, and the configuration of the planting section needs to be changed drastically in accordance with it.
Not practical. In view of the above, the present invention uses a seedling box which has been used for the conventional 33 cm inter-row planting, and narrows the spacing between the planting lines without largely changing the configuration of the planting portion. The purpose is to make effective use. [0005] In order to achieve the above object, the present invention is configured as follows. That is, according to the present invention, transport belts for transporting pot seedlings taken out of a seedling box are arranged on the left and right, and a seedling planting device is arranged at a discharge end of each transport belt, and seedlings discharged from the transport belt are seeded. in planting rod is received seedling transplanter performing planting planting apparatus, the rotation locus of planting rod of the planting device is tilted to the left or right, the lower end portion of the rotational locus
A seedling transplantation machine, characterized in Rukoto close together. According to the present invention, for example, as shown in FIG. 3, for example, the rotary cases 21 of a set of right and left seedling planting apparatuses 9 are arranged to be inclined toward the conveyor belt 13 by a predetermined angle. Therefore, the rotation locus of the planting rod 22 of the seedling planting device 9 is the lower end portion.
Are close to each other, and the upper end is the same as before, so that the interval between the rows of seedlings can be narrowed by using the conventional seedling box as compared with the conventional method, and the field can be effectively used. Next, a first embodiment of the present invention will be described with reference to FIG. In the first embodiment, a riding type fertilizing rice transplanter, which is a kind of a seedling transplanter, will be described as an example. In the first embodiment, as shown in FIG. 1, a six-row planting section 2 and a fertilizer 3 are mounted on a machine 1 which is a four-wheeled vehicle, and the whole is used as a riding type fertilizer paddy plant. Constitute. The planting section 2 is attached to a parallel link device 4 provided at the rear of the machine 1 so as to be able to move up and down with respect to the machine 1. The parallel link device 4 is configured to move up and down by a hydraulic cylinder 5. The planting section 2 is a system in which seedlings are loaded together with a seedling box. A seedling planting device 9 for the number of planting strips and a seedling of the seedling planting device 9 are mounted on a frame constituted by a transmission case 8 of a transmission device. A seedling supply device for supplying seedlings one by one to the picking position is assembled. The seedling box used in the planting section 2 is designed such that a plurality of pots are arranged in rows and columns in a grid pattern with a planting interval of 33 cm. In addition,
Reference numeral 16 in FIG. 2 denotes a float. Each of the above-mentioned apparatuses for supplying seedlings includes a seedling box transport path 10 and an automatic seedling box feeding apparatus 1 provided in the seedling box transport path 10.
1. A seedling extruding device 12 for extruding seedlings in a row in a row from a seedling box at a seedling pushing position in a seedling box conveying path 10, and a seedling extruding device 12 for transferring the seedlings extruded by the seedling extruding device 12 to a seedling conveying belt 13.
Seedling delivery device 14 for delivering to seedlings, the seedling delivery device 1
And a seedling transfer belt 13 for transferring seedlings received from the seedling transfer device 14 to a seedling picking position of the seedling planting device 9. Each rotary case 21 of the set of right and left seedling planting devices 9 is disposed at each discharge end of the conveyor belts 13, and is inclined downward by a predetermined angle toward the discharge side of the conveyor belt 13 (FIG. 3). reference). In other words, the rotary case 21 of the seedling planting device 9 includes a pair of planting rods 22, 2.
2 is arranged so that the rotation locus passes below the discharge side of the conveyor belt 13. Then, the seedling planting device 9 sets the planting interval L1 of the seedlings to 30 cm as shown in FIGS. 2 and 3. Further, a seedling guide path 17 for guiding the seedlings along the rotation locus of the planting rod 22 from the discharge end of the conveyor belt 13 downward is formed by the two guide members 17A, 17A. The distance L2 from the end of the two conveyor belts 13 to the end is 33 cm. Rotary case 2 in seedling planting device 9
1 is as shown in FIG. 4 and FIG. In the figure, reference numeral 23 denotes a planting device mounting shaft supported at the rear end of a transmission case 24. A fixed metal 26 is fitted to a leading end of the planting device mounting shaft 23 by a key 25, and a rotary metal is further mounted on the fixed metal 26. Case housing 27
Has been fixed. Therefore, the rotary case 21 rotates integrally with the planting device mounting shaft 23. A planting rod operating cam 28 having an annular guide groove 28A is fitted around the planting device mounting shaft 23. This cam 28 is used for the bearing 2
9 and is rotatable with respect to the housing 27, and is integrated with a fixed plate 30 fixed to the transmission case 24 by a claw 28B. A pair of rollers 31, 31 is fitted in the guide groove 28A of the cam 28. These rollers 31 are attached to a planted rod attachment shaft 33 via an arm 32. The planting rod 22 is attached to the planting rod mounting shaft 33. As shown in FIG. 3, the rear end side of the planting device mounting shaft 23 is connected to a shaft 35 which is supported in the transmission case 24 via a bevel gear 34. A sprocket 36 is attached to the shaft 35, and the sprocket 36 and the sprocket 38 attached to the shaft 37 are connected by a chain 39 (see FIG. 6). The transport belt 1 is attached to the tip of the planting rod 22.
When a seedling is received from No. 3, a concave portion 22A for securely holding the root portion of the seedling is formed (see FIG. 7). Next, an example of another transmission mechanism of the seedling planting apparatus 9 will be described with reference to FIGS. The transmission mechanism is a chain 39 shown in FIG.
Is a shaft drive as shown in FIG. That is, the distal end portion 41A of the transmission case 41 is formed in an inclined shape corresponding to the rotary case 21, and the base end portion 41B is formed without being inclined. Then, the shaft 23 is inserted into the transmission case 41, and the shaft 23 and the shaft 37 are connected via two bevel gears 42, 43 and a shaft 44. As described above, in the first embodiment, the rotary cases 21 of the pair of right and left seedling planting apparatuses 9 are arranged to be inclined toward the conveyor belt 13 by a predetermined angle. Therefore, the planting rod 2
2 can pass below the discharge side of the conveyor belt 13, so that seedlings can be planted below the conveyor belt 13, and the spacing between the planting lines can be reduced (for example, 30 cm). Therefore, even if a conventional seedling box is made with a spacing of 33 cm for planting, the spacing between the seedlings is 3 using the seedling box.
Planting of 0 cm becomes possible, and effective use of the field can be achieved. Next, a second embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS. In the second embodiment, the rotary case 21 of the seedling planting device 9 is arranged at the discharge end of the conveyor belt 13 in a direction perpendicular to the conveying surface of the conveyor belt 13.
The planting rod 22 is attached to the planting rod mounting shaft 52 by a connecting pin 51 so as to be rotatable around the connecting pin 51. Further, an implanted rod restricting bracket 53 having an L-shaped cross section is integrally attached to the implanted rod mounting shaft 52, and the implanted rod restricting bracket 53 and the implanted rod 2 are attached.
The distal end side of the planting rod 22 is urged toward the rotary case 21 with a compression spring 54 interposed between the rear end of the planting rod 2 and the rear end of the planting rod 22. To be configured. Further, on the outer periphery of the lower half of the rotary case 21, the transfer rod 1
A semi-cylindrical cam 56 that rotates in a state inclined to the third side is arranged. Further, a seedling guide path 57 for guiding the seedlings along the rotation locus of the planting rod 22 from the discharge end of the conveyor belt 13 downward is formed by the two guide members 57A, 57A. The internal structure of the rotary case 21 is shown in FIG.
And the configuration is the same as that of FIG. 4, and the same reference numerals are given and the description thereof is omitted. In FIG. 11, reference numeral 61 denotes a sprocket, 62 denotes a chain, and 63 denotes a transmission case. FIG. 12 shows a rotation locus of the planting rod 22, and FIG. A of FIG.
The positions of B and C correspond to the positions of A, B and C in FIG. According to the second embodiment, the planting rod 22 slides on the cam 56 and can pass below the discharge side of the conveyor belt 13, so that the seedlings can be planted below the conveyor belt 13. As a result, the interval between planting lines can be narrowed, so that the field can be effectively used. As described above, according to the present invention, the lower ends of the rotation trajectories of the planting rods in the planting apparatus are brought close to each other.
As a result, the conventional seedling box can be used, and the interval between the streaks can be narrowed without a significant change in the configuration of the planting portion, so that the field can be effectively used.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing an overall configuration of a first embodiment of the present invention. FIG. 2 is a plan view of the planting portion. FIG. 3 is a front view showing a main part of the planting section. FIG. 4 is a sectional view of the seedling planting apparatus. FIG. 5 is a view showing the internal structure of the seedling planting apparatus. FIG. 6 is a plan view showing an example in a transmission case. FIG. 7A is a front view of a distal end portion of a planting rod, and FIG. 7B is a sectional view thereof. FIG. 8 is a front view showing another example of the transmission mechanism. FIG. 9 is a plan view thereof. FIG. 10 is a front view showing a main part of a second embodiment of the present invention. FIG. 11 is a sectional view of a seedling planting apparatus. FIG. 12 is a diagram showing a rotation locus of a planting rod. FIG. 13 is a development view of a cam. [Description of Signs] 2 planting unit 9 seedling planting device 13 transport belt 21 rotary case 22 planting rod

──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Tetsu Kato 1st Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. In the Technical Department of the Company (72) The inventor Manabu Namoto, 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. (56) References JP-A-56-134906 (JP, A) JP-A-4-365408 ( JP, A) Jikai Sho 56-85529 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 11/02

Claims (1)

(57) [Claims] [Claim 1] A transport belt for transporting pot seedlings taken out of a seedling box is disposed on the left and right, and a seedling planting device is disposed at a discharge end of each transport belt, and transported. in the seedling discharged from the belt receiving the planting rod the planting device seedling transplanter performing planting, by inclining the rotational locus of planting rod the planting device to the left or right, the lower end of the rotation locus the seedling transplantation machine, characterized in Rukoto close together.