JPH08256537A - Multiple transplanter - Google Patents

Abstract

PURPOSE: To provide a multiple transplanter useful for vegetables, etc., longitudinally differentiating seedling planting positions of seedling planting devices between adjoining rows, being readily maintained during culture and improving harvesting workability of cultivated crops planted in many rows. CONSTITUTION: Seedling planting positions of multiple seedling planting devices 15a, 15b, 15c and 15d are longitudinally differentiated. A planting case is equipped with a first and a second driving shafts 92a and 92b linked and connected through gear transmission mechanisms 91a and 91b to a first and a second output shafts 90a and 90b of a driving case 20. The first driving shaft 92a is linked and connected to a laterally sending and driving case 30. The first driving shaft 92a is linked and connected through each chain transmission mechanism 93a to the seedling planting devices 15a and 15c at the right row and the third row from the right row. The second driving shaft 92 is preferably linked and connected through each chain transmission mechanism 93b to the seedling planting devices 15b and 15d at the second and the fourth rows from the right row.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention receives potted seedlings for one strain taken out from a seedling tray of a seedling table by a seedling picking nail, and sequentially and automatically plants them in a field. Relating to transplantation machine.

[0002]

2. Description of the Related Art In this kind of multi-row transplanter,
Most of the seedlings are planted in the same row at the same timing.

[0003]

However, in the case of the same row planting as described above, as the crop grows, the adjacent rows become densely packed, which makes it difficult to perform the work at the time of harvesting the crop. There was a problem.

[0004]

Therefore, according to the present invention, in a transplanter equipped with a multi-row seedling planting device, the seedling planting position of the seedling planting device is provided so as to be different between the adjacent strips. Thus, it is possible to improve the workability at the time of harvesting crops by eliminating the cultivated crops from becoming dense between adjacent rows.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a plan view of a transplanting part, FIG. 2 is an overall side view of a riding transplanter, and FIG. 3 is a plan view thereof. In the figure, (1) is a traveling vehicle on which an operator rides, and (2) is Body frame with engine (3) mounted in front, (4)
(5) is front and rear wheels for traveling, (6) is a hood for covering the engine (3), etc., (7) is a spare seedling stand mounted on both sides of the hood (6), and (8) is a vehicle body cover (9). A driver's seat provided at the upper part, (10) is a steering handle provided at the rear of the hood (6) in front of the driver's seat (8), (1
1) is a transplant water tank mounted on the vehicle body cover (9) at the rear of the driver's seat (8).

Further, (12) in the figure is an automatic seedling transplanting section for four-row planting, which has a seedling supply device (13), a seedling take-out device (14), a seedling planting device (15), etc. The transplantation frame (16) supporting the seedling supplying device (13) and the seedling removing device (14) is driven by a traveling vehicle (1) via a three-point link mechanism (19) including a top link (17) and a lower link (18). ) It is connected to the rear side so that it can be moved up and down, and the seedling planting drive case (20) of the seedling planting device (15) is connected to the transplantation frame (1) via vertical parallel links (21) and (22).
6) is vertically movably connected to the lower link (1
8) A transplantation part (12) is controlled to move up and down by an expansion / contraction operation of a hydraulic lifting cylinder (23), and a gauge frame (24) extending behind the planting device (15).
A gauge wheel (25) whose rear end is adjustable in vertical height is rolled on the upper surface of the ridge (A), and the planting device (15) is moved up and down so as to follow the upper surface of the ridge (A). ), The planting device (15) is configured so as to be controlled.

As shown in FIG. 4, the seedling feeding device (1
3) is a 4-row seedling mounting table (2) for mounting the seedling tray (26).
7), vertical guide shafts (28) and (29) for laterally guiding the seedling placing table (27) in the left-right direction, and a lateral feed drive case (30) for laterally driving the seedling placing table (27). Seedling stand (2
7) Left and right drive sprockets (31) and driven wheels (32)
Left and right vertical feed chains (33) stretched between them, vertical feed pins (34) provided at equal intervals between the left and right vertical feed chains (33), and above the upper end side of the seedling table (27). The seedling tray automatic supply device (35) is provided, and each cell (2) of the seedling tray (26) at the end of the lateral feeding of the seedling mounting table (27) is provided.
6a) The vertical feed pin (34) engaged between the bottoms is moved by the rotation of the sprocket (31) to vertically feed the seedling tray (26), while the vertical feed of the seedling tray (26) is performed a predetermined number of times. The replenishing device (35) is operated every time to automatically replenish the seedling tray (26) to the seedling mounting table (27).

The seedling taking-out device (14) has a seedling taking-out drive shaft (36) and a seedling taking-out pawl (37) via a rotary case or the like.
Seedling taking-out arm (38) for connecting and supporting the seedlings, and a vertical feed drive shaft (39) for inputting a driving force to the seedling feeding device (13).
And a seedling pushing pin (43) for connecting a pin support body (42) to a fixed pushing cam (40) of the seedling pushing nail (3) by rotation of the drive shaft (36).
Immediately before the entry of 7) into the seedling tray (26) from above, the seedling extrusion pin (43) is inserted from the bottom side of the seedling tray (26) to extrude the seedlings, and these seedling take-out claws (37) and The seedling push-out pin (43) is used to remove the seedlings.

As shown in FIG. 5 to FIG. 6, the seedling planting device (15) receives one pot of seedlings from the seedling tray (26) taken out by the seedling taking-out nail (37) and receives a furrow. (A) Two separation claws (44a) (44) to be planted on the upper surface
a hopper type planting claw (44) having b), a planting case (46) for outputting a planting drive force input to the planting drive case (20) through the PTO input shaft (45), and the case. The rotary case (4) is attached to the drive shaft (47) with the planting of (46).
8) and a planting arm (50) of a planting claw (44) supported via a crank arm (49), and the planting arm (5).
0) An elevating guide (52) for inserting a guide roller (51) on one end side to vertically guide the planting claw (44) during rotation of the crank arm (49), and the crank arm (49). ) Planted arm (50) mounting shaft (53)
The swing plates (55a) (55) are fixed to the arms (54a) (54b) that are fixed to the arms and support the pawls (44a) (44b).
b) and a pawl opening / closing cam (57) which is connected via an advancing / retreating rod (56), and moves the planting arm (50) up and down along the rotation raising / lowering guide (52) of the planting drive shaft (47). When the arm (50) is moved downward, the pawls (44a) (44b) are opened by the cam (57), and the pot seedlings (B) in these pawls (44a) (44b) are ridged. It is configured to be planted in (A).

Further, a cutter driving mechanism (59) for moving the multi-cutter (58) up and down is provided during the work of laying the multi-sheet on the ridge surface.
6) A pair of vertical links (61) (62) for supporting the multi-cutter (58) on the fixed mounting plate (60) so as to be vertically movable.
The drive mechanism (59) includes a cutter up-and-down movement cam (64) attached to the planted drive shaft (47) and slidingly contacting the outer peripheral cam surface with the rotor (63) of the upper link (61).
The multi-cutter (58) is moved up and down in conjunction with the vertical movement of the planting claw (44) to form a planting hole in the multi-sheet.

Further, a pivot shaft (6) is attached to the mounting plate (60).
5) and the support arm (66) through the soil roller (6
7), a swing arm (70) for slidingly contacting a rotor (69) with a cam (68) attached to the drive shaft (47) is provided with a swing plate (71) and a rod (72). By interlocking with the support arm (66) and moving the soil cultivation roller (67) up and down in conjunction with the vertical movement of the planting claw (44) to apply soil to the seedling (B) immediately after planting. Is configured.

As shown in FIG. 7, the seedling tray automatic supply device (35) includes a seedling tray supply case (73) for accommodating a plurality of seedling trays (26) in multiple stages, and a seedling tray inside the case (73). (26) It has a horizontal shaft (74) to be engaged between the bottoms of the cells (26a) at the front and rear ends at the tip, and the base end at the support shaft (7).
5) The tray arm (76) swingably supported by the case (73), the driven cam (77) integrally supported by the support shaft (75) with the tray arm (76), and the case (73). 73) rotatably supporting a tray lower feed rotary cam (79) via a cam shaft (78) and a sprocket (78) attached to the lower feed rotary cam shaft (78) of each seedling tray (26) to be stored in multiple stages. 80) is provided with a chain feed mechanism (81) for longitudinal feed synchronization for interlocking and coupling the driven shaft (32) with the driven shaft (32), and the lower feed operation timing of the rotary cam (79) is provided such that it is sequentially delayed by one vertical feed as it goes upward. The bottom tray arms (76) are opened downward so that the vertical feed pins (34) of the vertical feed chain (33) are connected to the seedling trays (2).
When the tray 6 (6) is held by dropping, the tray arm (7
6) The seedling trays (26) are fed downward in order from the bottom to the top so that the seedling trays (26) in the upper stage are dropped and held in synchronism with the vertical feeding of the seedling mount (27). Is configured as follows.

As shown in FIG. 1, the transplanting section (12) is for planting the seedlings (B) in a staggered manner in response to the output signal from the inter-strain detection device (82). As shown in FIG. 20) inter-stock detection roller provided below (83)
An inter-stock detection disc (85) interlockingly connected to the roller (83) through a flexible wire (84), and a switch operation roller (86) slidably contacting the disc (85) so as to adjust the rotational speed. The contact between the roller (86) and the operation shaft (87) detects the stock distance between the PTO first and second output microswitches (88) (89) that output a planting signal every 180 ° of the roller (86). Device (82) is equipped with 1
One detection roller (83) is configured to output two planting signals.

The planting case (46) is a drive case (2).
0) the first and second output shafts (90a) (90b) of the first (0) is interlockingly connected via the gear transmission mechanism (91a) (91b)
And second drive shafts (92a) (92b), the first drive shaft (92a) is interlockingly connected to the transverse feed drive case (30), and the third row of seedlings is planted from the rightmost side and the rightmost side. Each chain transmission mechanism (93) is attached to the device (15a) (15c).
The first drive shaft (92a) is interlockingly connected via a), and the second and fourth row seedling planting devices (15) from the rightmost side.
b) (15d) interlockingly connects the second drive shaft (92b) to each chain transmission mechanism (93b), and drives each row seedling table (27a) (27b) (27c) (27d) vertically. A second drive shaft (92b) is interlockingly connected to the shaft (39) through a chain transmission mechanism (94), and based on the first and second planting signals output from the switches (88) (89). The first drive shaft (92a) and the second drive shaft (92
b) is alternately rotated every 1/2 cycle so that the seedlings (B) are planted in a staggered pattern every other row.

The present embodiment is configured as described above, and outputs two planting signals for alternately carrying out planting work every other row by one inter-plant detection roller (83) every 1/2 cycle. This makes it possible to plant staggered seedlings (B) with accuracy, and to improve the operability by adjusting the distance between plants by changing the rotation of the operating roller (86) with a single lever. Can be made.

FIG. 9 shows a seedling planting device (15a) for every other row.
(15b) (15c) (15d) and seedling stand (27a)
(27b) (27c) (27d) etc. are offset by a predetermined inter-plant amount (h), and one staggering signal from the detection roller (83) is used to perform staggered seedling planting similar to the above-mentioned embodiment. The horizontal feed drive case (30) and each chain are connected to one drive shaft (92) interlockingly connected to the output shaft (90) of the drive case (20) through a gear transmission mechanism (91). Transmission mechanism (93a) (9
3b) and (94) through each row seedling planting device (15a)
~ (15d) and the vertical feed drive shaft (39) are interlocked to drive each row drive part at the same time with one PTO output, and this drive system structure can be simplified. Planting device (15a) (15c), (15b) (1
Adjustment mechanism (9) for adjusting the offset amount (h) between 5d)
By setting 5), the inter-strain amount (h), which is a staggered amount
Can be easily confirmed with the eyes, and further, the inter-strain adjustment can be as simple as the one-row specification.

[0017]

As is apparent from the above embodiments, the present invention is a multi-row seedling planting device (15a) (15b) (15c).
In the transplanter provided with (15d), since the seedling planting positions of the seedling planting devices (15a), (15b), (15c), and (15d) are provided so as to be different from each other between adjacent rows, It is possible to solve the conventional drawback that the crops grown on the adjacent rows are close to each other and the management and harvesting during the cultivation are difficult to be performed, and the workability in these management and harvesting work can be improved. Has a remarkable effect.

[Brief description of drawings]

FIG. 1 is an explanatory plan view of a transplant part.

FIG. 2 is an overall side view of a transplanter.

FIG. 3 is an overall plan view of the transplanter.

FIG. 4 is a partial side view of a transplant part.

FIG. 5 is a side view of the planting device section.

FIG. 6 is a plan view of a planting device section.

FIG. 7 is an explanatory diagram of a seedling tray automatic supply device unit.

FIG. 8 is an explanatory diagram of an inter-stock detection device section.

FIG. 9 is an explanatory diagram showing another modified structural example.

[Explanation of symbols]

(15a) (15b) (15c) (15d) Seedling planting device

Front page continued (72) Inventor Hideo Nakajima 1-32 Chayamachi, Kita-ku, Osaka Yanmar Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A transplanter provided with a multi-row seedling planting device, wherein the seedling planting position of the seedling planting device is provided so as to be different between front and rear between adjacent strips. Machine.