JP3381321B2 - 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. 2. Description of the Related Art Conventionally, as an example of a seedling transplanter, a seedling box is transported by a seedling box feeding device along a substantially U-shaped seedling box transporting path, and the seedling box is transported at a lower portion of the seedling box transporting path. There is known a method in which a seedling is extruded from a pot of a seedling box by a seedling pushing device, and the extruded seedling is supplied to a seedling picking position of a planting rod of a seedling planting device by a seedling supply device. [0003] However, in the conventional seedling transplanter, the transmission device for transmitting power to the seedling box feeding device and the like is not necessarily rationally arranged in relation to the seedling box transport path. Had not been. Therefore, a useless space is generated, and effective use of the space has been desired. [0004] Therefore, an object of the present invention is to arrange each device rationally in a planting section of a seedling transplanter and to make effective use of space in the planting section. [0005] In order to achieve the above object, the present invention is configured as follows. That is, according to the present invention, a seedling box is transported by a seedling box feeding device along a seedling box transporting path substantially U-shaped in a side view, and seedlings are seeded out of a seedling box pot by a seedling pushing device below the seedling box transporting path. In a seedling transplanter that extrudes and supplies the extruded seedlings to a seedling picking position of a seedling planting device by a seedling supply device, the seedling box is moved along the seedling box transport path.
Feeding device, seedling pushing device, pushing by the seedling pushing device
Seedling transfer device for transferring the seedlings that have been taken out to the seedling lateral feeder,
The seedlings from the seedling transfer device on the seedling lateral feeder
Assemble each device, and push the seedling pushing device and seedling transfer
A transmission device for transmitting power to a device, placed inside the seedling box conveying path, further, the driving shaft of the seedling box feeder Nae搬
With the drive shaft of the feeder at a low position,
Set the drive shaft of the seedling transfer device at a lower position than the
A seedling transplanter characterized by being arranged . According to the present invention, as shown in FIG.
To a space that has not been used conventionally, ie, the seedling box transport path 3
Place inside. Therefore, each device can be rationally arranged as a whole without generating useless space in the planting section B of the seedling transplanter, and the space in the planting section B can be effectively used. In the present invention, since the transmission device 4 is disposed inside the seedling box transport path 3, the seedling box transport path 3
A space is created below the space. Therefore, when the seedling transplanter has a fertilizer device, the fertilizer hose of the fertilizer device can be arranged in the space, so that the fertilizer application position can be set near the planting position, and the fertilizer-free section at the start of planting can be set. In addition to shortening, the entire planting part can be approached to the body side, and the balance of the entire seedling transplanter is improved. Furthermore, the drive of the seedling box feeder 7
Move the drive shaft 4C of the seedling transport device 10 to the lower position from the drive shaft 4A.
While placing, the seedling pushing device 8 pushes the seedling from the position,
The drive shaft 4C of the seedling transfer device 10 is arranged at a low position. Yo
And transmission of power to the seedling box feeding device 7 and
Power transmission is not mixed and maintenance is easy. Ma
In addition, the seedling transfer device 10 is brought closer to the drive shaft 4C of the seedling transfer device.
And compact drive mechanism of seedling transfer device 10
Can be achieved. Next, embodiments of the present invention will be described with reference to the drawings. In this embodiment, a riding type fertilizing rice transplanter which is a kind of a seedling transplanter will be described as an example. In this embodiment, as shown in FIG. 1, a six-row planting part B and a fertilizer fertilizer C are mounted on a machine A, which is a four-wheeled vehicle, to provide a riding fertilizer fertilizer as a whole. Constitute. The planting section B is attached to a parallel link device D provided at the rear of the machine A, and is configured to be able to move up and down with respect to the machine A.
The parallel link device D is configured to move up and down by a hydraulic cylinder E. The fertilizer applicator C has a fertilizer feeding device provided with a fertilizer tank on the rear side of the seat. , A groove generator 26 fixed to the float 23
(See FIG. 3). In the planting section B, seedlings are loaded together with the seedling boxes. As shown in FIG. 2, three planting units 2 are arranged at predetermined intervals. Each planting unit 2 is shown in FIG.
As shown in (1), a seedling box transport path 3 having a U-shape in side view is provided, and a transmission 4 is disposed at the inner bottom of the seedling box transport path 3. Each planting unit 2 includes a seedling box feeding device 7 for automatically feeding a seedling box 6 along a seedling box transfer path 3 to a frame constituted by a transmission case 5 of a transmission device 4, and a seedling box transfer path 3.
A seedling pushing device 8 for pushing seedlings from a pot of a seedling box 6 at a seedling pushing position, a seedling transferring device 10 for transferring seedlings extruded by the seedling pushing device 8 onto a seedling transferring belt 9, and a seedling transferring device 10. A seedling removing device 11 for pulling out seedlings onto the seedling feeding belts 9 and 9 and a seedling feeding belt 9 for transferring seedlings to a seedling picking position of the seedling planting device 12 are assembled (FIG. 3).
reference). In the transmission case 5 of the transmission device 4, in addition to the common input shaft 4E housed in the case 18, a seedling box feed drive shaft 4A, a seedling pushing drive shaft 4B, a seedling transport drive shaft 4C, and a cam. The shafts 4D are respectively supported. In the camshaft 4D,
Seedling pushing cam 61, seedling transport cam 62, seedling box feed cam 6
3, and a seedling removal cam 74 are integrally attached, and a roller 64 contacts the seedling pushing cam 61, a roller 65 contacts the seedling transport cam 62, and a roller 66 contacts the seedling box feed cam 63 (see FIG. 4). ). A gear 67 extends from the input shaft 4E to the camshaft 4D.
The power is transmitted by the reduction gear 68, and the reduction gear 68 and the camshaft 4
Between D, a planting clutch having a fixed position stop clutch configuration in which one stop position per rotation is provided. That is, the reduction gear 68 is formed integrally with the camshaft 4D, and the claw cylinder 70 having the claw 69 is rotatably fitted. Further, a clutch body 72 having a pawl 71 that engages with the pawl 69 is attached to the camshaft 4D so as to be slidable in the axial direction and to rotate integrally. When the clutch pin 73 is pressed against the clutch body 72 by operating another clutch operating tool, the clutch body 72 separates from the claw cylinder 70, and the clutch is disengaged when the clutch body 72 reaches a predetermined angle. Has become. When the planting clutch is disengaged in this way, the operations of the seedling box feeding, seedling pushing, seedling transfer, and seedling removal of the corresponding planting unit are stopped, seedlings are not supplied to the seedling planting apparatus, and seedlings cannot be planted. Becomes In such a transmission 4, since the planting clutch is provided on the camshaft 4D on the low speed side, the operation for re-engaging the planting clutch is performed as compared with the case where the planting clutch is provided on the input shaft 4E on the high speed side. When this is done, it is possible to prevent a difference in operation timing between each planting unit 2 restarting operation and each device in another planting unit 2 during operation. As shown in FIG. 3, the seedling box feeder 7 is provided with a feed claw 7A by the power of a seedling box feed drive shaft 4A of the transmission 4.
Is reciprocated, inserted into the claw hole of the seedling box 6, and the seedling box 6 is intermittently fed by one row of pots. The seedling box 6 includes a plurality of pots arranged side by side. Seedling pushing device 8
Is configured to drive the slide mechanism 8A by the power of the seedling pushing drive shaft 4B of the transmission 4, thereby reciprocating the plurality of seedling pushing pins 8B, and pushing the seedlings out of the pot at a time by one row. The seedling transfer device 10 is provided with a seedling transfer holder 10A for receiving a row of seedlings extruded by the seedling push-out pins 8A by the power of the seedling transfer drive shaft 4C of the transmission 4, and transfers the seedlings to the seedling feeding belt 9, 9 is configured to be conveyed up.
The seedling removing device 11 is configured such that the seedling removal arm 11A drops the seedling held by the seedling transfer holder 10A onto the seedling feeding belts 9, 9 by the power of the camshaft 4D of the transmission device 4. The seedling feed belts 9, 9 have their drive shafts 13 connected to a common shaft 16 connected by two couplings 15, 15 in a case 14 via a bevel gear 28, and the shaft 16 It is connected to a common input shaft 4E in a case 18 via a mechanism 17. In each seedling planting apparatus 12, a rotary case 21 having a planting rod 20 is mounted on a mounting shaft 19, and the mounting shaft 19 is mounted on a transmission mechanism 2 such as a chain.
2 to the input shaft 4E in the case 18. The input shaft 4E is connected to the transmission case of the machine body A via the planting transmission shaft 27 and the like. As shown in FIG. 5, the seedling box transport path 3 has a smaller radius of curvature on the side 3A of the lower curved portion where the seedling pushing-out device 8 is disposed, and has the opposite side 3B.
May be configured to have a large radius of curvature. According to such a configuration, the seedling pushing-out device 8 is suppressed while suppressing an increase in the seedling box movement resistance.
Can be provided at a lower position below the seedling box transport path 3. In addition, the fertilizer hose 25 can be routed with less bending. In the planting section B constructed as described above, the transmission 4 is disposed inside the seedling box transport path 3, so that no wasteful space is created in the planting section B, and the respective devices are rationalized as a whole. , So that the space in the planting section B can be effectively used. Further, the transmission 4 is connected to the seedling box transport path 3.
A space is created below the seedling box transport path 3 by arranging it at the bottom inside. Therefore, since the fertilizer hose of the fertilizer can be arranged in the space, the fertilizer application position can be set near the planting position, the fertilizer-free section at the start of planting can be shortened, and the entire planting section can be approached to the machine body side. The balance of the whole rice transplanter is improved. Next, another embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. In this embodiment, a common input shaft 4E housed in a case 18 is connected to a mounting shaft 19 of a seedling planting device 12 via a transmission mechanism 22. The mounting shaft 19 of the seedling planting device 12 disposed at the left end and the right end is shown in FIG.
As shown in (1), it is connected to a common shaft 33 in a case 32 via a transmission mechanism 31 composed of a chain or the like. The common shaft 33 is connected to the drive shaft 3 of the seedling feed belt 9 via a bevel gear.
Connect to 4. Other configurations are the same as those in FIG. 2, and thus the same reference numerals are given and the description will be omitted. In the embodiment of FIGS. 6 and 7 having the above construction, the transmission 4 is arranged inside the seedling box conveying path 3 and the common shaft 33 for operating the seedling feeding belt 9 is connected to the seedling box conveying path 3. The seedling box transport path 3 can be arranged at a lower position because it is provided away from the center. Therefore, the planting portion B has a low center of gravity, and the rolling performance is improved. Next, another arrangement example of the float in the planting section B will be described with reference to FIG. In this example, as shown in FIG. 8, two side floats 41, 41 are arranged below the left and right ends of the planting portion B, and below the planting unit 2 between the planting units 2. Two center floats 42, 42
Place. And two center floats 42, 4
2 are connected to each other by a connecting member 43.
The hydraulic valves are switched by the up-and-down movement of 2, 42 following the mud surface, and the elevation control of the planting section B is activated. The fertilizer hose 25 of the fertilizer applicator C is guided to the rear side of the groove generator 26 attached to the floats 41 and 42, respectively. The fertilizing position is a position in front of and near the planting position of the seedlings. In addition, rakes (flat plates) 47, 47 are arranged in front of the side float 41 and the center float 42. Other configurations are the same as those in FIG. 2, and thus the same reference numerals are given and the description is omitted. According to such an arrangement, the fertilizing hoses 25 can be routed without interfering with the seedling feed belt 9,
A fertilizing position can be provided near the seedling planting position by the planting rod 20. Moreover, since the leveling area by the floats 41 and 42 is large, the leveling property can be improved. As described above, in the present invention, seedling extrusion
The transmission device for transmitting power to the seedling transfer device and the seedling transfer device is arranged inside the seedling box transfer path, so that no wasteful space is created in the planting section of the seedling transplanter and each device can be rationalized as a whole. The space in the planting portion can be effectively used. In addition, seedling box feeding equipment
Set the drive shaft of the seedling transfer device at a lower position than the drive shaft
At the same time, from the seedling pushing position of the seedling pushing device,
The drive shaft at a lower position. Therefore, the seedling box feeder
The transmission of power to the seedling transfer device does not
Maintenance is easy. In addition, a seedling transfer device and a seedling transfer device
Drive shaft to the seedling transfer device.
Can be made more compact.

[Brief description of the drawings] FIG. 1 is a side view showing an overall configuration of an embodiment of the present invention. FIG. 2 is a plan view showing an example of a planting section. FIG. 3 is a side view thereof. FIG. 4 is a diagram showing an example of an internal configuration of a transmission. FIG. 5 is a side view showing another example of the seedling box transport path. FIG. 6 is a plan view showing another example of the planting section. FIG. 7 is a side view thereof. FIG. 8 is a plan view showing an arrangement example of a float. [Explanation of symbols] B planting section 2 Planting unit 3 Seedling box transport path 4 Transmission 7 Automatic seedling box feeder 8 Seedling pushing device 9 Seedling feed belt 10 Seedling transfer device 11 Seedling removal device 12 Seedling planting equipment

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Sumi Fukushima 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture, Iseki Agricultural Machinery Co., Ltd. (56) References JP-A-4-187011 (JP, A) JP-A-5 -41913 (JP, A) JP-A-63-63302 (JP, A) JP-A-62-138113 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 11/02

Claims (1)

(57) [Claims] 1. A seedling along a substantially U-shaped seedling box transport path in a side view.
The box is transported by the seedling box feeder, and the lower part of the seedling box transport path is
The seedlings are extruded from the seedling box pot by the
Of the extruded seedlings by the seedling supply device
In the seedling transplanter feeding to the position,A seedling box feeding device, a seedling pushing device along the seedling box transfer path,
Seedling extruded by the seedling pushing device
Seedling transfer device to transfer the seedlings to the plant
Attach the seedling removal devices to be dropped onto the removal device, SaidSeedling pushing device and seedling transport deviceTransmission to transmit power to
Place the device inside the seedling box transport path, Furthermore, the seedling box feeder is driven by the drive shaft of the seedling box feeder.
Set the shaft at a low position and push the seedling
Position the drive shaft of the seedling transfer device at a lower position than the position thing
A seedling transplanter characterized by the following.