JP2000125618A - Transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transplanter designed to be capable of smoothly delivering, to a set of left and right seedling planting tines, seedlings for two-row use simultaneously withdrawn from a seedling tray on a seedling platform with a set of left and right seedling takeout claws. SOLUTION: This transplanter is designed to deliver, to a set of left and right seedling planting tines 25, seedlings N withdrawn from a seedling tray 22 on a seedling platform 21 with a set of left and right seedling takeout claws 23, and plant the seedlings N thus delivered, wherein the lateral interval width at a seedling delivery position between the left and right seedling planting tines 25 are set smaller, while that at a seedling planting position larger.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter for extracting a vegetable seedling such as onion from a seedling tray and planting it in a field. About the machine.

[0002]

Normally, one set of planting mechanisms is provided for one seedling mounting table, and one seedling tray is used for one seedling tray.
The seedlings for one row are taken out for each one stock by one seedling take-out nail, and the seedlings are inherited and planted.
For this reason, in a walk-type transplanter having only one seedling mounting table, only one planting is performed in one stroke operation. For example, when multiple plants are planted on one ridge, the number of the plants is adjusted according to the number of plants. Need to do the work of the process. So take out two seedlings at the same time from one seedling tray and plant two rows.
There are two simultaneous planting means with two seedling extraction nails and seedling planting nails. The width of the left and right seedling extraction nails corresponding to the seedling tray and the right and left seedling planting nails Since the interval width is different (for example, the interval width of the seedling picking nail is 142 mm and the seedling picking nail interval width is approximately 200 mm), the center of the seedling picking nail and the seedling planting are located at the seedling transfer position. There is a problem that the center of the attached nail is offset (approximately 29 mm in the case of the above example), and the proper delivery of the seedling from the seedling removal nail to the seedling attachment nail is not performed.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention relates to a transplanting machine for transferring a seedling taken out from a seedling tray of a seedling mounting table by a pair of right and left seedling picking nails to a pair of right and left seedling planting nails and planting the seedling. The width of the left and right gap between the right and left seedling planting claw seedling transfer positions is small.
In addition, the width of the left and right intervals of the seedling placement position is made large, and the two-line two-line seedlings simultaneously taken out from the seedling tray of the seedling mounting table with the seedling removal nails are successfully transferred to the seedling placement nails. The seedlings are planted in an appropriate posture between the planting strips to improve planting accuracy.

[0004] Further, a simple and economical means for inclining the existing planting mechanism by providing the left and right planting mechanisms for driving the right and left seedling planting claws in an inclined shape so that a special mechanism is not required and the existing planting mechanism is inclined. This improves planting accuracy.

Further, a planting transmission case is disposed between the left and right planting claw driving mechanisms, and the output shaft of the planting transmission case is interlocked to the input shaft of the planting claw driving mechanism via a universal joint, so that it can be freely adjusted. The planting mechanism is connected to the planting transmission case serving as a driving source by a simple means including only a joint, thereby improving the planting accuracy economically.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory plan view of an implanting section, FIG. 2 is an overall side view of an implanting machine, FIG. 3 is an overall plan view thereof, and FIG. 4 is an overall rear view thereof, wherein (1) shows an engine (2) mounted. (3) is a fixed frame that supports the body (1) on the front and rear slide frames (4) and (5) so as to be slidable left and right, and (6) is a body (1) via a slide arm (7).
(8) a hydraulic slide cylinder that slides the
Are left and right rear wheels which are supported on a drive horizontal shaft (10) from a transmission case (9) via a left and right transmission case (11) so as to be able to swing up and down, and (12) is an axle on the front end side of the fixed frame (3). Left and right front wheels supported so as to be able to swing up and down via a frame (13), (14) are front and rear wheels (12) via a fixed frame (3) and a swing shaft (15) on the rear end side.
(8) A hydraulic swing cylinder that swings up and down, (1)
Numeral 6) is a seedling feeder installed behind the body (1) via a chassis frame (17), and (18a) and (18b) are transmission cases planted between the left and right rear wheels (8) in the transmission case (9). A seedling planting device which is a seedling planting mechanism installed via (19); (20a) and (20b) are a pair of left and right large-diameter and small-diameter crushing rollers for crushing the ridge surface (M); One seed pot (N) is taken out from the seedling tray (22) on the seedling table (21) reciprocating left and right of the seedling supply device (16) with the chopstick-shaped seedling picking nail (23). The potted seedlings (N) are placed in the multi-cutter (2) of the seedling plant (18).
The hopper-type seedling-claw (25), which moves up and down in conjunction with 4), is supplied to the pot (25) at regular intervals on the running ridge (M) of the body (1) by operating the steering handle (26). Two-row planting of the seedlings (N), that is, transplanting, is performed, and the position of the planting bar is changed by adjusting the horizontal sliding of the body (1).

[0007] Further, (27) is an elevating lever for operating the swing cylinder (14) to elevate and lower the machine body (1), (28) is a setting clutch lever for turning on and off the setting clutch, and (29). Is a main transmission lever for shifting the traveling speed, (30) is a slide adjustment lever for adjusting the position of the body (1) in the left-right direction, and (31) is a switch for stopping the driving of the left and right rear wheels (8) to move the body (1). These are left and right side clutch levers that perform turning operations.

As shown in FIG. 5 to FIG. 9, the above-mentioned seedling removal claw (23) and seedling-planting claw (25) are connected to one seedling mounting table (2).
The two seedling trays (2) are arranged side by side with a certain interval on the seedling tray (22) of 1), and are driven in phase to form one seedling tray (2).
From 2), two rows of seedlings are harvested and two rows are planted at the same time. The left and right case brackets (32) (32) connected to the chassis frame (17) side have rotary input shafts (33). 2 through the rotary case (34), the crank arm (35), and the take-out arm (36)
Two seedling removal nails (23) and (23) are arranged symmetrically,
The output shaft (39) (4) of the planting clutch case (38) for interlocking the input shaft (37) to the transmission case (9).
0) The left and right rotary input shafts (33) and (33) are connected to the ends via a chain (41), respectively, so that when the planting clutch (38a) of the planting clutch case (38) is inserted, the left and right rotary input shafts (33) and (33) are connected.
The two seedling removal claws (23) and (23) are driven in phase to
Two seedlings (N) are simultaneously taken out from two seedling trays (22), and after taking out, the seedlings (N) are moved downward to the transfer position with the planting claws (25).

The seedling mounting claw (25) is provided with a rotary case (44) at both ends of the output shaft (43) of a single transmission case (19) for interlocking the input shaft (42) to the transmission case (9). The right and left seedling planting claws (25) are attached symmetrically via the crank arm (45) and the planting arm (46), respectively, and the rotary case (44) is rotated around the output shaft (43). And the crank arm (4
5), the planting arm (46) is moved up and down along the lifting guide rail (47) while swinging back and forth, and the planting claws (2) are moved.
5) is moved up and down on the elliptical planting locus,
Two semi-conical claw bodies (25
a) A planting claw (25) is formed by (25b), and the planting claw (25) is formed during one rotation of the rotary case (44).
Is raised, the seedling (N) is received from the removal claw (23), and the cam (48) of the crank arm (45) and the rod (49) of the planting arm (46) are received when the planting claw (25) is lowered. ), Each claw body (25a) (2
5b) is moved back and forth to form an opening in the ridge surface (M), and the seedling (N) inside each claw body (25a) (25b) is dropped into the opening in the ridge surface (M). are doing.

[0010] The seedling mounting table (21) further includes a left and right side frame (50) fixed to the chassis frame (17).
A drive sprocket (54) supported between the guide rail (51) and the transverse drive shaft (52) between the guide rails (51) so as to be able to reciprocate left and right, and supported on the seedling mounting table (21) via the longitudinal feed drive shaft (53); Vertical feed pins (57a) at predetermined intervals of a vertical feed chain (57) stretched between idler sprockets (56) supported via idler shafts (55) are engaged between the pot bottoms of the seedling tray (22). When the seedling mounting table (21) reaches the end of the left-right movement, the vertical feed cam (5) of the vertical feed shaft (58) is moved.
The seedling tray (22) is vertically fed by one pitch via 9).

By the way, as shown in FIGS.
Two seedling planting claws (25), (25), and a rotary case (44), a crank arm (45), and a planting arm (4) for driving the two right and left claws (25, 25) respectively.
6) The right and left seedling planting devices (18a) and (18b) are inclined symmetrically in the left and right directions when viewed from the front and rear, and the planetary gear (61) is attached to the mounting shaft (60) of the crank arm (45). The sun gear (63) of the rotary case (44) connected via the intermediate gear (62) is connected to the transmission case (1).
A transmission case (19) which is detachably inclined and fixed to the left and right flange bodies (64) (65) of 9) and has a safety clutch (66) and is supported substantially horizontally on the transmission case (19).
The mounting shaft (68) of the rotary case (44) is fixed to the both ends of the output shaft (43) via a ball type universal joint (67) in an inclined posture, and the sun gear (63) is mounted on the left and right sides of the transmission case (19). ) And the right and left seedling planters (18a) and (18b) through the mounting shaft (68) at a certain angle (θ) so that the upper interval width is small and the lower interval width is large when viewed from the front and rear.
(Θ ≒ 6 °).

Then, for example, 200 (width 10 × length 20)
Seedling tray with holes or 288 (12 × 24) holes (2
2) Extraction hole pitch (5 for 10 horizontal, 6 for 12 horizontal)
(Pitch of the hole), the nail pitch (T), which is the distance between the centers of the two right and left seedling removal nails (23), is matched. The interval width of (25) is made closer to the nail pitch (T) to ensure the delivery of the seedling (N) from the seedling extraction nail (23) to the seedling planting nail (25), and the left and right seedling planting nails. At the time of the lowermost movement of the nail at the planting position of (25), between the planting strips (W) (W = 20 cm)
The width of the interval between the left and right seedling planting claws (25) is increased to plant the seedlings (N) at appropriate intervals.

As shown in FIG. 10, in the transplanting operation, two plants are simultaneously planted in one planting operation, and after completion of the planting operation, the body is turned to simultaneously plant two plants in the second stroke. , The seedlings for four rows are planted on one ridge surface (M), and further, the body (1) is slid and planted between each of the left and right two rows of the already planted plant. M) It is also possible to allow multiple plants such as six or eight plants to be planted.

[0014] Further, by the simultaneous two-row planting, the lateral feeding amount of the seedling mounting table (21) can be reduced, so that the entire width of the seedling supply device (16) can be reduced. The gap (W) can always be kept constant, and even in a wide ridge, by setting the body (1) to the leftmost position, the handle ( 26) The operation can be made possible, and the operability of the handle (26) can be improved.

Further, the interval between seedlings (nail pitch (T)) of the left and right seedling removal nails (23) is smaller than the interval between planting strips (W) (T).
<W), the seedling picking center (23) and the seedling picking nail (2)
Even in such a transplantation structure in which the center of seedling planting in (5) is offset by the dimension (E) in the left-right direction, the seedling removal claw (23)
There is no need to separately install a transfer member such as a seedling relay guide between the transfer of the seedlings (25) and the seedlings (25), and the seedlings (N) are directly transferred from the seedling removal nails (23) to the seedlings (25). Can be favorably inherited, and the planting accuracy can be improved by means of a compact structure.

[0016]

As can be seen from the above embodiment, the present invention relates to a method of forming a pair of left and right seedlings (N) taken out of a seedling tray (22) of a seedling mounting table (21) by a pair of right and left seedling removal claws (23). In the transplanter that inherits and implants the seedlings with the seedlings (25), the width between the right and left seedlings at the seedling transfer position of the right and left seedlings (25) is reduced, and the width between the right and left seedlings is increased. Therefore, two seedlings (N) of two lines for two-rows, which were simultaneously taken out of the seedling tray (22) of the seedling mounting table (21) by the seedling picking nail (23), are well received by the seedling mounting nail (25). In addition, the seedlings (N) can be planted in a proper posture between the proper planting strips (W), and the planting accuracy can be improved.

Further, since the left and right planting mechanisms (18a) and (18b) for driving the left and right seedling planting claws (25) are provided in an inclined manner, no special mechanism is required, and the existing planting is unnecessary. The planting accuracy can be improved by a simple and economical means for simply tilting the mechanisms (18a) and (18b).

Further, the left and right planting mechanisms (18a) (18)
b) A planting transmission case (19) is arranged in between, and the output shaft (43) of the planting transmission case (19) is connected to the input shaft (68) of the planting mechanism (18a) (18b) by a universal joint (67). ), The planting mechanism (18a) (18b) is connected to the planting transmission case (19) as a drive source by simple means of only a universal joint, so that it is economically planted. The accuracy can be improved.

[Brief description of the drawings]

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

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

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

FIG. 4 is an overall rear view of the transplanter.

FIG. 5 is an explanatory side view of the transplantation part.

FIG. 6 is a drive explanatory diagram of a seedling removal claw portion.

FIG. 7 is an explanatory plan view of a seedling removal claw portion.

FIG. 8 is an explanatory rear view of the seedling planting apparatus.

FIG. 9 is an explanatory diagram of a seedling-claw driving unit.

FIG. 10 is an explanatory diagram showing a seedling planting state.

[Explanation of symbols]

 (18a) (18b) Planting device (planting mechanism) (19) Planting transmission case (21) Seedling table (22) Seedling tray (23) Seedling removal claw (25) Seedling claw (43) Output shaft (67) Universal joint (68) Input shaft (N) Seedling

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shuichi Shimizu 1-32 Chayacho, Kita-ku, Osaka Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Toshiro Wada 1-32 Chayacho, Kita-ku, Osaka-shi Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Tomohiro Takeyama 1-32 Chaya-cho, Kita-ku, Osaka City Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Yozo Ogaki 2-181-1, Inaji, Amagasaki-shi, Hyogo F-term (reference) in Kanzaki High-class Koki Co., Ltd. 2B060 AA06 AC02 AE03 BA03 BB05 CA04 CB13 CB17 CC01 CC05

Claims (3)

[Claims] Claims: 1. A transplanting machine in which a pair of right and left seedlings are taken out from a seedling tray of a seedling mounting table by a pair of right and left seedling picking nails and transferred to a pair of right and left seedling planting nails. The transplanting machine is provided so that the width of the left and right spaces is small and the width of the left and right spaces at the planting position is large. 2. The transplanter according to claim 1, wherein left and right planting mechanisms for driving the left and right seedling planting claws are provided in an inclined manner. 3. A planting transmission case is disposed between the left and right planting claw driving mechanisms, and an output shaft of the planting transmission case is interlocked to an input shaft of the planting claw driving mechanism via a universal joint. 3. The transplanter according to claim 2, wherein: