JP3431961B2 - Seedling transplanter - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mid-mount type seedling transplanting machine in which a seedling transplanting device is mounted substantially at the center of a traveling machine body. 2. Description of the Related Art For example, there is a tractor rear mount type transplanter in which a seedling transplanting device is provided at the back of a tractor so as to be able to move up and down. [0003] However, in the case of such a tractor rear mount type transplanter, only a large tractor having a large horsepower is required due to the restriction of the weight balance with the transplantation device. In addition, a plurality of workers, such as those dedicated to transplantation work, were required besides the tractor operator. SUMMARY OF THE INVENTION [0005] However, according to the present invention, a spare seedling stand mounted on the front of the machine and a seedling tray for transplanting from the spare seedling stand are provided in a standing posture in the front-rear direction. A pair of left and right tray transport mechanisms that feed backward substantially in parallel, and left and right tray transport at the end of the feed
By providing a seedling transplanting mechanism provided between the mechanisms for taking out seedlings from the left and right seedling trays and planting them in the field, and a tray collection container arranged at the rear of the machine and storing the seedling tray after the transplantation, traveling and Not only the transplanting operation can be performed by a single worker, but also the operation of supplying seedlings at the headland to the spare seedling stand and the tray collection container at the front and rear ends of the machine and carrying out the empty tray can be facilitated. Therefore, the efficiency of these operations can be improved, and these seedling transplanting mechanisms can be compactly provided between the two-row seedling trays that are erected and arranged opposite to each other to reduce the body width. . An embodiment of the present invention will be described below in detail with reference to the drawings. 1 is a perspective explanatory view of the transplanter, FIG. 2 is a side view of the same,
FIG. 3 is a plan view of the same, in which a running body (3) having a front wheel (1) and a rear wheel (2) has an engine (5) in a front hood (4) and a rear side of the running body (3). Driver's seat (6)
And a transplant device (8) having two right and left transplant units (8a) and (8b) between a steering handle (7) in front of a driver's seat (6) and the hood (4). And a mid-mount type transplanter (9). A transplanting and irrigation tank (10) is provided on the right side of the driver's seat (6), and left and right spare seedlings are provided on both sides of the body behind the driver's seat (6) via seedling stand frames (11). A table (12) is provided. The transplanting units (8a) and (8b) are composed of a pressure-reducing roller (13) for repressing the ridge surface, and a hard-type seedling tray (1) on the seedling mounting table (14) on the repressed ridge (A) surface.
5) A hopper-type seedling-planting claw (17) for planting a pot seedling of one strain taken out by the seedling removal claw (16), and a cultivation roller (18) for covering the seedling after planting, When the planting claw (17), which rises and descends in a substantially elliptical locus by the elevating mechanism (19), rises, the seedlings supplied and dropped from the seedling removal claw (16) are received, and the descending ridge (A) surface is formed. The implanting hole to be opened is configured to be implanted. As shown in FIGS. 4 to 7, the seedling table (1)
4) The hard type seedling tray (15) is mounted in a substantially vertical and horizontal longitudinal direction so as to be fed laterally in the longitudinal direction of the body, and the upper and lower portions are transplanted unit frames (20).
The guide rail (21) and the guide shut (22) support the table mover (25) to the transverse feed screw shaft (24) constituting the seedling drive system (23). The seedling mounting table (14) is configured to perform a reciprocating cross feed by the rotation of (24). The seedling mounting table (14) is provided with a front side plate (2).
The vertical feed drive and idle sprockets (30) and (31) are provided between the upper and lower of the rear side plate (27) and the vertical feed drive and idle sprocket shafts (28) and (29), and these sprockets (30) and (31) are provided. 31) A vertical feed pin (3) to be engaged with the outer bottom depression of each cell (15a) of the seedling tray (15).
The vertical feed cam (35) of the vertical feed drive shaft (34) interlocked with the screw shaft (24) at the end of the front and rear horizontal feed of the seedling mounting table (14) by stretching the vertical feed chain (33) having 2). ), The vertical feed drive mechanism (36) installed on the rear outer surface of the rear side plate (27) is operated, and the sprocket (30) is rotated by a fixed amount to perform the vertical feed of the seedling tray (15). . The screw shaft (24) and the vertical feed drive shaft (34) are connected to the drive shaft (37) of the seedling removal claw (16) in an interlocking manner, and are fixed to the lower front part of each unit frame (20). The drive shaft (37) is connected to the output shaft (39) for the seedling stand of the transplant mission case (38).
A chain case (40) is attached to the planting claw elevating mechanism (19).
Via the output shaft (4) for the nail of the transmission case (38)
1) are linked so that each of the transplant units (8a) and (8b) is driven by the output from the mission case (38) mounted on each unit frame (20). Each of the transplant units (8a) and (8b)
Is a transplant body frame (4) constituting the traveling body (3).
2) The horizontal link is supported by front and rear links (43) and (44), which are parallel links, so that the front link can swing freely around the hexagonal input shaft (45) of the transmission case (38). (43) While connecting the rear end side,
The front end of the front link (43) is connected to the fixing bracket (46) of the main body frame (42) via the pivot (47), and the input shaft (45) of the front link (43) is connected to the rod (4).
8) and a support spring (49) for elastically supporting the bracket (46) so as to be able to freely adjust the spring pressure, and a rear link (44) via a pivot (50) on both left and right sides of the rear of the main body frame (42). ), The front end side of the rear link (44) is connected via a pivot (52) to a fixing bracket (51) on the body frame (42) side, and the pivot ( 50) side with rod (5
3) The bracket (51) is elastically supported by the bracket (51) so as to be able to freely adjust the spring pressure via the support spring (54), so that the transplant units (8a) and (8b) can move up and down independently of each other. ) It is configured to perform the seedling transplantation operation that follows the surface well. Further, the input shaft (45) is connected to the engine (5) by a drive case (55), a continuously variable transmission belt mechanism (56), a bevel mechanism (57), and a swing chain case (5).
8) is interlocked so as to be able to change gears, and a swing chain case (58) provided between the output shaft (57a) and the input shaft (45) of the bevel mechanism (57) is integrated with the front link (43). Then, the rotation of the output shaft (57a) is transmitted to the input shaft (45) via the sprockets (59) and (60) and the chain (61) to drive each part of the transplantation device (8). . As shown in FIG. 8, the front and rear wheels (1) and (2)
Is a four-wheel drive structure that uses a hydraulic motor (62) of a hydraulic continuously variable transmission (HST) to drive and drive the vehicle. The front and rear axle frames (3a) and (3b) of the traveling body (3) are attached to the front and rear axle frames (3b). 63) (64) adjusting shaft (65)
The front and rear wheels (1) and (2) are mounted by freely adjusting the left and right positions via
Treads (T1) and (T2) are adjustable. Although the configuration in which the transplant units (8a) and (8b) are driven by the output from the engine (5) has been described, they may be separately performed by a hydraulic motor or the like. The present embodiment is constructed as described above, and the transplanting operation of the seedlings is performed by the transplanting units (8a) and (8b) arranged substantially in the center of the traveling body (3) and in front of the driver's seat (6). When the seedling mounting table (14) is moved forward and backward, the seedling extraction claw (16) is operated from the left side of the seedling tray (15) to perform the seedling extraction operation, and the extracted seedlings are planted. Seedling planting is carried out by inheriting the nails (17). In this case, the operator operates the machine body (3) at the position of the driver's seat (6) and performs each transplantation by supplying seedlings from the spare seedling stand (12) to the seedling stand (14). Unit (8a)
Since both of the transplantation work according to (8b) are performed, all the work can be performed by one worker, and the work performance can be improved. FIGS. 9 to 12 show two left and right seedling trays (15) standing opposite to each other, with the seedling extraction side of the seedling tray (15) inside, at the left-right symmetrical position across the driver's seat (6). This shows a configuration in which the seedlings are taken out and transplanted by the seedling transplanting mechanism (66) at the rear of the driver's seat (6) while the tray (15) is being transported from the front part to the rear part of the body (3). The left and right spare seedling stands (12) are detachably disposed on the left and right sides of the front via the seedling stand frames (11), and are freely disposed.
A tray collection container (67) for storing an empty tray (15a) after transplanting seedlings is detachably provided at the rear via a hook-type mounting bracket (68). The seedling tray (15) is moved back and forth between the spare seedling stand (12) and the collection container (67) while reciprocating up and down, and is fed to the vertical feed shaft (69) of the frame (42) of the machine. The vertical mover (71) of the transplant frame (70) is connected, and the seedling tray (15) is connected to the rear feed pin (72a) of the tray transport chain (72) constituting the tray transport mechanism in preparation for the transplant frame (70). The outer bottom is engaged with the seedling tray (15) during the reciprocating operation of the transplanting frame (70), and the seedling tray (15) is moved by the seedling transplanting mechanism (66) while moving to the trailing end. It is configured so that seedling harvesting and planting work can be performed. The seedling transfer mechanism (66) has a drive case (73) for seedling removal nails and a chain case (40a) for seedlings.
Is provided on the fuselage (3) center line (L) with the two left and right transplant units (8a) (8b) as one unit. The drive case (73) is symmetrical about the center line (L). ), A seedling removal claw (16) via a rotary case (74) and a chain case (40).
Seedling claw (17) is attached to both left and right sides of (a) via a rotary case (75), and two seedling removing claws (1) are formed by one drive case (73) and chain case (40a).
6) and to drive the seedling mounting claw (17),
This makes it possible to improve the left-right balance of the fuselage, make the structure with a small body width compact, and reduce the weight. In addition, the adjustment between the planting strips can be performed only by moving the seedling removing claw (16) and the seedling planting claw (17), which is convenient. Reference numeral (76) is a guide rod for vertically moving the transplant frame (70). In this embodiment, both the operation of the machine (3) and the transplanting of the seedlings can be performed by one worker, and the spare seedling stand (12) is provided before and after the machine (3). The provision of the tray collection container (67) makes it easy to supply seedlings to the spare seedling stand (2) at the headland and to carry out the empty tray (15a) from the container (67). In addition to having a compact body structure with a small width, the work flow can be made smooth and the work efficiency can be improved. As is apparent from the above embodiments, the present invention provides a spare seedling stand (12) mounted on the front of the fuselage and a seedling tray for transplantation from the spare seedling stand (12). A pair of left and right tray transport mechanisms (72) for feeding back (15) in a standing posture substantially parallel to the front-rear direction, and a left and right tray transport mechanism (7)
2) A seedling transfer mechanism (66) provided between the left and right seedling trays (15) to take out seedlings from the right and left seedling trays (15) and planted in a field, and a tray arranged at the rear of the machine to store the seedling tray (15) after the completion of transplantation. Since it is provided with the collection container (67), not only the traveling and the transplanting operation can be performed by one operator, but also the spare seedling stand (12) at the front and rear ends of the machine and the tray collection container ( 67), the work of supplying seedlings at the headlands and the work of carrying out empty trays (15a) can be facilitated, and the efficiency of these works can be improved. These seedling transplanting mechanisms (66) are compactly provided between the seedling trays (15), and the width of the body can be reduced.

[Brief description of the drawings] FIG. 1 is an explanatory perspective view of a transplanter. FIG. 2 is a side view of the transplanter. FIG. 3 is a plan view of the transplanter. FIG. 4 is an explanatory side view of the transplantation device. FIG. 5 is an explanatory rear view of the transplant unit. FIG. 6 is an explanatory diagram of a transplant driving unit. FIG. 7 is an explanatory diagram of a seedling mounting portion. FIG. 8 is an explanatory plan view of front and rear wheel portions. FIG. 9 is a side view of another transplanter. FIG. 10 is a plan view of another transplanter. FIG. 11 is an explanatory diagram of a transplant mechanism. FIG. 12 is an explanatory view of conveying a seedling tray. [Explanation of symbols] (1) Front wheel (2) Rear wheel (6) Driver's seat (8a) (8b) Transplant unit (12) Spare nursery stand (15) Tray (67) Collection container (72) Transport chain (transport mechanism)

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshiro Wada 1-32 Chayacho, Kita-ku, Osaka City Inside Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Masatoshi Sun Asakawa 32-32 Chayacho, Kita-ku, Osaka City No. Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Yumasa Ichinomiya 5-32 Sendagaya, Shibuya-ku, Tokyo Ichikawajima Shibaura Machinery Co., Ltd. (72) Inventor Yuji Ohara 5-32 Sendagaya, Shibuya-ku, Tokyo No. 7 Ishikawajima Shibaura Machine Co., Ltd. (56) References JP-A-63-167706 (JP, A) JP-A-59-48012 (JP, A) JP-A-56-82009 (JP, A) 51-35522 (JP, U) Japanese Utility Model Showa 57-100819 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 11/00-11/02 303 A01C 11/02 311 A01C 11/02 350

Claims (1)

(57) [Claims] [Claim 1] Left and right for rearwardly feeding a spare seedling stand mounted on the front part of the fuselage and a seedling tray for transplantation from the spare seedling stand in an upright posture and substantially parallel to the front and rear direction. A pair of tray transport mechanism and feed end
A seedling transfer mechanism that is provided between the left and right tray transfer mechanisms of the section and takes out seedlings from the left and right seedling trays and transplants the seedlings in a field; and a tray collection container that is disposed at the rear of the machine and stores the seedling tray after transplantation. A seedling transplanter characterized by the following.