JP2001258324A - Vegetable transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vegetable transplanter to take a seedling from a seedling holding bed with a seedling take-out claw attached to a rotary case while preventing the interference of the rotary case with the seedling on the seedling holding bed and enabling the desirable delivery work of the seedling. SOLUTION: The transplanter is provided with a transplanting part 16 to take two seedling stocks N from the seedling holding bed 21 for each rotation of the rotary case 34 with two seedling taking claws 23 attached to both ends of the rotary case 34 and to perform the transplantation of the seedlings. The taking of the seedling from the seedling holding bed 21 with the seedling taking claw 23 is performed above the rotary center 35 of the rotary case 34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vegetable transplanting machine which takes out one seedling of vegetable seedlings such as onion, leaf onion and white onion from a seedling tray and plant it in a field.

[0002]

Conventionally, seedlings taken out from a seedling tray of a seedling mounting stand by one seedling take-out claw are inherited by one seedling-planting claw to plant one seedling. Since the working speed of these claws is limited and cannot be increased, in the case of crops such as onions that are short between planted plants (8 to 10 cm), the vehicle speed is reduced (for example, about 0.2 m / s). There was a disadvantage that the work efficiency was extremely poor, for example, it was necessary to deal with short crops between the stocks.

[0003] For this reason, two seedling picking nails having a phase difference of 180 degrees on the same locus are provided, and one set of these two seedling picking nails is picked up to obtain one conventional seedling picking nail. When the seedling picking operation is performed twice and the seedling picking operation is performed twice to keep the vehicle speed constant, the seedling picking speed is increased compared to the conventional method. The speed is increased to improve the efficiency of the seedling collecting operation.
When one seedling removal claw is attached to both ends of one rotary case and the seedlings on the seedling mounting table are removed below the rotary case by the seedling removal claw, the seedlings are rotated around the seedlings other than the removal part of the seedling mounting table. There are inconveniences such as damaging the seedlings and disturbing the seedling posture by interfering with the rotating case.

[0004]

Therefore, according to the present invention, two seedling removal claws are attached to both ends of a rotary case, and two seedlings are taken out from a seedling mounting table during one rotation of the rotary case to plant seedlings. In addition to providing a transplanting section for performing seedling removal, the removal of seedlings from the seedling mounting table by the seedling removal claw is performed above the center of rotation of the rotary case to prevent contact between the rotary case and the seedlings on the seedling mounting table, The present invention is intended to improve the precision of taking out seedlings by forming a good nail locus for easily pulling out the seedlings from the lower side of the seedlings without disturbing the leaves and smoothly pulling out the seedlings upward.

[0005] In addition, the center of rotation of the rotary case is disposed below the position where the seedlings are taken out of the seedling mounting table, and good seedling picking by the seedling picking claw which does not cause inconvenience such as contacting the rotary case with the seedlings of the seedling mounting table. Is made possible.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is an overall side view of the transplanting machine, FIG. 2 is an overall plan view of the same, FIG. 3 is a side view of the transplanting section, and FIG. 4 is a plan view of the transplanting section, where (1) is an engine (2). (3) is a front and rear slide frame (4)
(5) A fixed frame that supports the body (1) so that the body (1) is slidable left and right, (6) is a hydraulic slide cylinder that slides the body (1) via a slide arm (7),
(8) is the driving horizontal axis (1) from the transmission case (9).
The left and right rear wheels are supported by a left and right transmission case (11) via a left and right transmission case (11), and the left and right rear wheels (12) are supported on the front end side of the fixed frame (3) by an axle frame (13) so as to be able to vertically swing. Left and right front wheels, (14) is a hydraulic swing cylinder for vertically oscillating front and rear wheels (12, 8) via a fixed frame (3) rear end swing shaft (15), and (16) is an airframe ( (1) a seedling supply device which is a transplanting portion provided behind the chassis frame (17) via the chassis frame (17);
8) is a seedling planting device installed between the left and right rear wheels (8) and connected to the transmission case (9) via a planting drive case (19), and (20) is a crusher for the ridge surface (M). And a pair of pressure-reducing rollers that move from side to side in a seedling tray (22) on a seedling table (21) that reciprocates right and left of the seedling supply device (16).
The pot seedlings (N) of the plant are taken out with a chopstick-shaped seedling take-out claw (23), and the taken-out pot seedlings (N) are moved up and down in conjunction with the multi-cutter (24) of the seedling planting device (18). The pot seedlings (N) are supplied at regular intervals on the running ridge surface (M) of the body (1) by operating the steering handle (26) by discharging and supplying the hoppers with the open hopper opening type seedling claws (25). Planting (transplanting)
Is performed, and the position of the planting streak 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). Left and right side clutch levers that perform turning operations.

As shown in FIGS. 3 and 4, the above-mentioned seedling removal claw (23) and seedling-attached claw (25) are connected to one seedling mounting table (2).
The seedling tray (22) of 1) is arranged side by side with a certain interval on the left and right, and driven in phase to collect two seedlings from one seedling tray (22) and plant two seedlings at the same time. While doing
Each one in each seedling removal nail (23) and seedling-mounted nail (25)
It is provided that the phase is made different by 180 degrees on the same nail movement locus (A) (B) of the striation, so that seedling collection and planting are performed twice in one movement locus (A) (B). The seedling collecting speed and the seedling planting speed are configured to be approximately doubled.

As shown in FIG. 5 to FIG. 20, the seedling removal claw (23) has a phase adjusting plate (33) fixed to a fixing bracket (32) of the chassis frame (17), and is rotated at a constant speed in one direction. The rotary case (34) to be supported is supported on the adjusting plate (33) via the extraction claw drive shaft (35), and the rotary case (34) around the drive shaft (35) is rotated.
The base claw case shafts (37) of the two claw cases (36) are mounted at the 0-degree symmetrical positions, and the seedling removal claws (23) are mounted on the distal ends of these claw cases (36), respectively.

A sun gear (38) is loosely fitted to the take-out pawl drive shaft (35) in the rotary case (34), and the sun gear (38) is fixed to the adjusting plate (33) so that the phase can be adjusted. The idle gear (39) and the planetary gear (40) having the same number of teeth as (38) are connected to the intermediate shaft (4).
1) and the rotary case (3) via the case shaft (37).
4) The gears (38) (39)
(40) is provided on the unequal speed gear, and the central sun gear (38) is provided.
The two planetary gears (40) are normally meshed in a row and symmetrically via two idle gears (39), and the same rotation of the rotary case (34) at a constant speed makes one revolution with the same claw motion locus (A).
The arrangement is such that two seedlings (N) are alternately taken out from the seedling tray (22) with a phase difference of 80 degrees.

Further, a claw opening / closing cam (42) for opening and closing the seedling removal claw (23) to the left and right is provided on the claw case (36). Drive camshaft (4
3), an opening / closing cam (42) is connected to the left and right claw bodies (23a) (2) of the seedling extraction claw (23) with the opening / closing rods (44) and (45) as the centers on the tip side of the L-shaped claw case (36).
The left and right opening / closing arms (46) and (47) for opening and closing 3b) follow the driven cam (48) and the opening / closing cam (4) via the swing plate (49).
2) is connected. The driven cam (48) has a base end fixed to the driven cam shaft (50) in the claw case (36),
The opening / closing cam portion (48a) at one end is slidably contacted with the outer peripheral cam surface (42a) of the opening / closing cam (42), and an L-shaped swing is attached to the shaft end of the camshaft (50) projected outside the claw case (36). An adjustable screw shaft (51) is attached to the bent end (49a) of the rocking plate (49), which fixes the base end of the moving plate (49) and bends into an L-shape in the left-right direction, and adjusts the protruding height, and opens and closes. Arm (4
The end (51a) of the lower end of the screw shaft (51) is configured to be brought into contact with an opening / closing portion (47a) bent at the other end of (7).

The opening / closing arms (46) and (47) are fixed to opening / closing rods (44) and (45), and a semicircular engaging projection (46a) formed on one arm (46) and the other arm (46). 47) is engaged and connected with the semicircular engaging recess (47a) formed on the arm (46) and the claw case (3).
6) A torsion coil spring (52) for the claw opening direction is interposed therebetween, and a bolt member (54) is provided with a nut member (54) fixed to the notch groove (53) of the other arm (47) so that the protrusion height can be adjusted. 55), and the head of the bolt member (55) is brought into contact with the bent stopper portion (56a) of the stopper member (56) fixedly provided on the outer surface of the claw case (36) by the force of the spring (52). While the left and right claw bodies (23a) and (23b) are held open by rotation, the swing plate (49) is swung by the rotation of the opening / closing cam (42), and the arm (47) is moved by the tip (51a) of the screw shaft (51). )
The left and right claw bodies (23a) and (23b) are closed to hold the seedlings when swinging a predetermined amount downward against the force of the spring (52).

Further, linear left and right seedling extruding members (58) are provided on the outer sides of the distal ends of the left and right claw bodies (23a) and (23b) for loosely fitting the tip ring portions (57), respectively, and vertically moving the claw case (36). The left and right seedling pushing member (59) is attached to the outer L-shaped seedling pushing member (59), and the left and right seedling pushing members (58) are connected to one end of the left and right seedling pushing members (58) via the shaft (60). Operation plates (61) and (62) are provided, and the other ends of the left and right operation plates (61) and (62) are mutually connected by a horizontal axis (63). A substantially middle portion is rotatably supported by the claw case (36) via a rotation operation shaft (64), and the spring pressure of the operation plate (62) and the stopper member (56) is adjusted around the operation shaft (64). Spring force in the direction of moving downward with respect to the seedling pushing member (58) between the mounting portion (56b) It is made to interposed a torsion coil spring (65) for urging. The operation shaft (64) has a seedling pushing cam portion (4) formed on the other end of the driven cam (48).
8b), an extrusion driven cam (66) for sliding contact is fixedly mounted, and when the opening and closing cam (42) is turned to open the seedling removal claw (23), the driven cam (48) (66) and the operation are operated. The seedling pushing member (58) is moved downward through the plates (61) and (62) to push the seedling (N) from the seedling extracting claw (23).

The claw case shaft (37) is provided integrally with the planetary gear (40) so as to be freely rotatable with respect to the drive cam shaft (43), and the drive cam shaft (43) is attached to the cylindrical shaft (6).
7) and a pawl case (36) rotatably supported via the boss member (68), and a spring mounting seat (69) fixed to the shaft end of the case shaft (37) on the outer periphery of the boss member (68).
A torsion coil spring (71), which is a rotation restricting spring, is stretched between the boss (70) of the camshaft (50) fixed to the claw case (36), and the spring of the coil spring (71) is always provided. The adjustment bolt (73) of the position fixing member (72), which is integrally connected to the side surface of the claw case (36) by force, is attached to the spring mounting seat (69).
The stopper case (74) is brought into contact with the stopper (74) to integrally connect the claw case (36) to the claw case shaft (37).

A guide roller (76) is provided on the outer periphery of the claw case (36) in a direction opposite to the seedling removal claw (23) via a roller shaft (75), and the guide roller (76) is provided on a roller guide surface (77a). The claw guide (77) for rolling and guiding the roller (76) is provided with the seedling removal claw (23) and the claw case (3).
6) is disposed at a position forward of the drive shaft (35) of the rotary case (34) between the chassis frame (17).
The nail guide (77) is fixed via a bracket (79) to a horizontal frame (78) that fixes the front end side of FIG.
When the roller (76) and the claw guide (77) are not in contact with each other during one rotation of the rotary case (34), the claw case shaft (37) and the claw case (36) are integrally connected to each other to make the claw. In the vicinity of the seedling removal position of the case (36), the rotation of the planetary gear (40) performs the seedling removal operation with the tip of the seedling removal claw (23) directed upward along the locus (A1) as shown by the two-dot chain line in FIG. When the roller (76) comes into contact with the claw guide (77) and moves down along the guide surface (77a), the tip of the seedling removal claw (23) along the locus (A2) shown by the dotted line in FIG. It is configured to perform a seedling transfer operation to the seedling-attached claw (25). Thus, when the seedling removal claw (23) moves up and down along the movement trajectory (A) formed by the synthesis of the two trajectories (A1) and (A2), the rotary case (34) and the claw case (3)
The change of the relative position of 6) causes the claw bodies (23a) and (23)
b) is opened and closed, and the seedling removal claw (2) is inserted into the seedling tray (22).
At the time of 3), the nails (23a) and (23b) are closed to hold the seedling (N), and the seedling removal nail (23) is moved down to the position where the seedling removal nail (25) is transferred to the seedling mounting nail (25). When the claw body (23
a) It is configured such that the seedling (N) is dropped downward by opening the (23b).

The take-out pawl drive shaft (35) is connected to an output shaft (81) from a planting clutch case (80) interlockingly connected to a transmission case (9) to a drive chain (82) as a drive input unit. When the planting clutch (83) is turned on, two sets (two rows) of seedling removal claws (23) are driven in the same phase when the planting clutch (83) is turned on, and two rows of pot seedlings from one seedling tray (22). (N) at the same time, and the seedlings (2
It is configured to perform simultaneous inheritance in 5).

Further, the seedling mounting table (21) is fixed to a chassis frame (17) by right and left side frames (84).
A drive sprocket (88) supported between the guide rail (85) and the transverse feed drive shaft (86) so as to be reciprocally movable left and right, and supported on the seedling mounting table (21) via the longitudinal feed drive shaft (87); Vertical feed pins of a vertical feed chain (91) stretched between idle sprockets (90) supported via idler shafts (89) at predetermined intervals are engaged between the pot bottoms of the seedling tray (22), The seedling tray (22) is vertically fed by one pitch via the vertical feed cam (93) of the vertical feed shaft (92) when the seedling mounting table (21) reaches the left-right movement end.

[0018] The seedling claw (25) is provided at both ends of a rotary case (95) integrally attached to the planting drive shaft (94) of the planting drive case (19). 23) Similarly, it is provided that the seedling collecting operation is performed at a position shifted by 180 degrees on the same nail movement locus (B).

As shown in FIGS. 5 and 7, the planting clutch (83) approaches the seedling tray (22) when the two seedling extraction claws (23) are positioned above the seedling collection locus (A). When the side claw (23) is in a position immediately before entering the seedling tray (22), the cutting operation is provided.
At the time of cutting, it is configured to enable easy removal of the seedling tray (22) from the seedling mounting table (21), insertion and supply of the seedling tray (22) to the seedling mounting table (21), and the like. .

As shown in FIG. 8, when one of the seedling removing claws (23) enters the seedling tray (22) and performs a seedling removing operation for removing the seedling (N) upward, the other is different in phase by 180 degrees. Since the seedling extraction nail (23) crosses one seedling extraction nail (23) and passes above it, the left and right nail bodies (2)
3a) Between the upper ends of (23b), the other seedling removal nail (2)
3) to form the space (96) necessary for the passage
The two seedling picking claws (23) having a phase difference of 180 degrees on the small seedling picking locus (A) perform the seedling picking operation without any trouble.

The present embodiment is constructed as described above, and the movement locus (A) of the seedling removing claw (23) is swung by the rotation of the planetary gear (40) to swing the claw case (36). A lateral trajectory (A1) with the tip of the claw (23) pointing upward as shown by a dashed line, and a planetary gear (40).
Guide (77) while swinging the nail case (36)
12 is obtained by partially controlling the movement of the claw case (36), as shown by a dotted line in FIG. The seedling take-out portion of the seedling tray (22) is provided above the line of the drive shaft (35) serving as the rotation center of (34), and the locus (A1) is located above the drive shaft (35).
The seedlings are picked up along the path and the seedlings in the rotating seedling tray (22) and the rotary case (34) are rotated.
In addition to preventing inconvenience such as interference with the seedlings, the guide (77) changes the tip of the seedlings (23) substantially vertically downward with respect to the seedlings (25), thereby ensuring a reliable posture. The seedlings are inherited.

During the operation of picking the seedling removal claw (23), the opening and closing of the claw (23) and the vertical movement of the seedling pushing member (58) are performed by one opening / closing cam (42). ,
As shown in FIG. 17, the cam surface (42a) of the opening / closing cam (42)
When the opening / closing cam portion (48a) of the driven cam (48) is pushed into the concave portion of the seedling, the seedling extraction claw (23) is opened, and the seedling pushing member (5) is opened.
8) is set to the lowermost movement position. From this state, when the opening / closing cam portion (48a) of the driven cam (48) shifts to the convex portion of the cam surface (42a) as shown in FIG. From the opening to the closing, the seedling pushing member (58) is operated from the bottom to the top to hold the seedlings (N) in the seedling tray (22) with the seedling removal claws (23) to perform seedling removal. As shown in FIG. 20, when the opening and closing cam portion (48a) of the driven cam (48) shifts from the convex portion of the cam surface (42a) to the concave portion at the lowermost position of the seedling extracting claw (23), the seedling extracting claw (23). ) Is opened from the closed position, and the seedling pushing-out member (58) is operated from top to bottom so that the seedling extraction nail (23) is opened.
And release of the seedlings (N) sandwiched between them. As described above, the opening and closing of the claw (23) and the vertical movement of the seedling pushing member (58) can be performed with good timing by one opening / closing cam (42), and the structure is simplified without requiring the space for two cams. It can be assembled compactly in the claw case (36).

As is clear from the above description, in a vegetable transplanter in which two seedlings are simultaneously taken out from two seedling take-out claws (23) from one seedling tray (22) on the left and right sides, 21) The drive mechanism (97) composed of the rotary case (34) and the claw case (36) of the left and right seedling removal claws (23) is arranged substantially symmetrically to the left and right center lines with respect to the left and right center lines. Drive mechanism (9
7) Deploy the compact and well-balanced left and right,
Simultaneous two-row planting can be easily enabled.

A transmission chain (82), which is an input portion of the drive mechanism (97), is disposed outside the machine body, and the rotary case (34), the claw case (36), and the seedling removal claw (23) are arranged inside the machine body in this order. By arranging the drive mechanism (97) toward the outside, the drive mechanism (97) can be compactly incorporated on the outer side of the fuselage removal claw (23) with a large space, so that simultaneous two-row planting can be easily performed. Can be done.

Further, a regulating spring (71) for regulating the rotation of the claw case (36) with respect to the rotary case (34) is provided between the rotary case (34) and the claw case (36). ), The claw guide (77) for forcibly rotating the claw case (36) is disposed between the claw case (36) and the seedling removal claw (23), so that the regulating spring (71) and the claw guide (77) are provided. ) Is compactly incorporated into the drive mechanism (97) to perform a good seedling extraction operation while always keeping the seedling extraction claw (23) in an appropriate posture, thereby improving the seedling extraction accuracy.

Also, two ends are provided at both ends of the rotary case (34).
Attach two seedling removal claws (23) and rotate the
During one rotation of 4), two seedlings (N) from the seedling table (21)
A seedling supply device (16), which is a transplanting portion for taking out and planting a seedling (N), is provided. One of the drive chains is a drive chain (82), and the other is a nail case, with the rotary case (34) interposed therebetween. A seedling removal claw (23) is arranged via (36), and a claw guide () for regulating the seedling removal posture of the seedling removal claw (23) in a gap between the claw case (36) and the seedling removal claw (23). The nail case (23) and the rotary case (34) are provided on the nail guide (77) in a side view in a state where the attitude of the seedling removal nail (23) is regulated by the nail guide (77) by disposing the nail guide (77). Can be installed compactly and easily without interference even when they are wrapped.

Further, the seedling removal claw (23) is interposed between the claw case shaft (37), which is the output shaft of the rotary case (34), and the claw case (36).
The seedlings (23) are taken out until the seedlings (N) are properly taken out from the seedling tray (22) and properly transferred to the seedlings (25). )
Can easily form a good motion trajectory (A), and the extraction accuracy of the seedling (N) can be improved.

Also, two ends are provided at both ends of the rotary case (34).
Two seedling removal claws (23) with variable speed gears (38) (39)
Seedling supply device (16) which is attached via (40) and takes out two seedlings (N) from seedling mounting table (21) during one rotation of rotary case (34) to plant seedlings (N). ), And the seedling removal claw (2) is rotatably mounted on the rotary case (34).
The claw guide (77) for supporting the claw case (36) of 3) and changing the seedling picking posture of the seedling picking nail (23) is provided.
In this manner, it is possible to easily perform a good movement from the removal of the seedling (N) from the seedling tray (32) in the upward position to the transfer of the seedling (N) in the downward position from the seedling claw (25) to improve the removal accuracy of the seedling. be able to.

Further, a rotation restricting spring (71) is interposed between the rotary case (34) and the claw case (36) to restrict the rotation of the seedling picking claw (23) by the force of the restricting spring, so that the seedling removing claw (23) is brought into a fixed position. By holding the seedling extraction claw (23), the non-uniform speed gear (3) is controlled when the rotation of the seedling extraction claw (23) is regulated by the regulating spring force.
8) The seedlings (N) are smoothly pulled out from the seedling tray (22) by the upward swinging motion of the seedling removal nails (23) through (39) and (40), and the seedling removal nails (2) are extracted.
3) It is possible to improve seedling removal accuracy.

Further, the guide roller (76) provided on the claw case (36) is brought into contact with the claw guide (77), and the seedling removal claw (23) is rotated against the regulating spring (71) to rotate the seedling. By changing the picking posture, the seedling tray (22)
The seedling removal claw (23) for holding the seedling (N) from the fork is forcibly turned downward by the claw guide (77) so as to be properly inherited by the seedling placement claw (25) and planted. It is possible to improve the inheritability of the nail (25).

A seedling supply device (1) for picking up one row of seedlings from the seedling mounting table (21) as a set of two seedling picking claws (23) having 180 degrees different phases on the same locus (A).
6) is provided, and the seedling supply device (1) is located immediately before the seedling removal claw (23) enters the seedling tray (22) of the seedling mounting table (21).
6) By making it possible to stop the driving of the transplanting section, for example, when the driving of the seedling supply device (16) is stopped, the seedling removal claw (23) is always held at the position immediately before the seedling tray (22) enters, and the seedling mounting table is placed. Work such as removal of the seedling tray (22) from the (21) and insertion and supply of the seedling tray (22) to the seedling mounting table (21) can be easily performed to improve efficiency in transplantation work. Can be.

Further, the seedling tray (2)
By enabling the disengagement operation of the planting clutch (83) at a position immediately before the entry into 2), the seedling tray with respect to the seedling mounting table (21) can be used when the seedling collecting operation is interrupted due to the disengagement of the planting clutch (83). The work of taking out and supplying (22) can be facilitated, and the workability can be improved.

Further, two ends are provided at both ends of the rotary case (34).
Attach two seedling removal claws (23) and rotate the
During one rotation of 4), two seedlings (N) from the seedling table (21)
Seedling supply device (16) for taking out and planting seedlings (N)
And a seedling table (2) with a seedling removal claw (23).
By removing the seedling from 1) above the drive shaft (35), which is the center of rotation of the rotary case (34),
Seedling (N) on rotary case (34) and seedling stand (21)
The seedling (N) is prevented from coming into contact with the seedlings (N), and the seedling removal claws (23) are easily inserted from below the seedling (N) without being disturbed by the true leaves of the seedlings (N), so that the seedlings (N) are smoothly moved upward. A good nail locus (A) to be pulled out can be formed to improve the extraction accuracy of the seedling (N).

Further, by disposing the drive shaft (35) of the rotary case (34) below the seedling removal position of the seedling mounting table (21), the rotary case (34) is moved to the seedling mounting table (21). Good seedling removal by the seedling removal nail (23) without inconvenience such as contact with (N) can be enabled.

Further, the rotation direction of the rotary case (34) as viewed from the left side is provided in a counterclockwise direction, and the seedling mounting table (21) is provided.
The tip of the seedling removal nail (23) is provided so as to protrude from the lower side of the seedling (N) with respect to the seedling (N), so that the contact between the seedling removal nail (23) and the seedling (N) during the removal of the seedling can be prevented. It is possible to reduce the damage to the seedling by the seedling removal nail (23) at the time of removing the seedling while minimizing it.

Furthermore, after the seedling removal nail (23) has entered the seedling, the seedling removal nail locus (A) is provided so as to pull out the seedling (N) substantially vertically above the seedling mounting table (21). Extraction claw (2
According to 3), the seedlings (N) can be reliably pulled out from the seedling tray (22) of the seedling mounting table (21), and the transplanting operation can be performed with high accuracy without lack of stock.

Further, the two seedling removal claws (23) are provided with a phase difference of 180 degrees on the same seedling removal locus (A), and the other of the seedling removal nails (23) is located on the other side of the seedling mounting table (21). By forming a space (96) for the seedlings (N) picked up by the seedling picking nails (23) to pass above the seedlings (23), the seedling picking track (A) of the seedling picking nails (23) between the planted plants is short. (2) Even under the small seedling picking conditions, the two seedling picking nails (23) can be effectively prevented from interfering with each other to enable proper seedling picking by the two seedling picking nails (23) on the same locus (A). Can be.

Further, the seedling removal nail (23) is made up of the left and right nail bodies (2).
3a) and (23b) are combined in a V-shape to form a left and right claw body (23).
a) By forming a surplus gap between the upper portions of (23b) in the space (96), the surplus gap formed on the seedling extraction claw (23) is effectively utilized, and the two seedling extraction claws (23) are mutually connected. The structure can be made more compact, and the seedling removal performance of the seedling removal nail (23) can be improved.

[0039]

As is apparent from the above embodiments, the present invention is characterized in that two seedling removal claws (23) are attached to both ends of the rotary case (34) and the seedling mounting table is rotated during one rotation of the rotary case (34). A transplanting part (16) for taking out two seedlings (N) from (21) and planting the seedlings (N) is provided,
Since the seedling removal from the seedling mounting table (21) by the seedling removal claw (23) is performed above the rotation center (35) of the rotary case (34), the rotary case (34) and the seedling mounting are provided. While preventing contact with the seedling (N) on the stand (21), the claw (23) for taking out the seedling can easily enter from the lower side of the seedling (N) without being disturbed by the true leaves of the seedling (N). Good locus (A) to pull out the seedling (N) smoothly
To improve the extraction accuracy of the seedlings (N).

Further, since the center of rotation of the rotary case (34) is arranged below the seedling removal position of the seedling mounting table (21), the rotary case (34) is placed on the seedling mounting table (2).
It is possible to enable good seedling removal by the seedling removal nail (23) without causing any inconvenience such as contact with the seedling (N) in 1).

[Brief description of the drawings]

FIG. 1 is an overall side view of a transplanter.

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

FIG. 3 is a side view of an implanted part.

FIG. 4 is an explanatory plan view of a transplant portion.

FIG. 5 is an explanatory side view of a seedling removal unit.

FIG. 6 is an explanatory plan view of a seedling removal section.

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

FIG. 8 is an explanatory view of a crossing of a seedling removal claw portion.

FIG. 9 is an explanatory plan view of a seedling removal claw portion.

FIG. 10 is a diagram illustrating the relationship between a seedling removal claw and an opening / closing cam.

FIG. 11 is a diagram illustrating the operation of a seedling removal nail.

FIG. 12 is an explanatory diagram of a locus of a seedling removal nail.

FIG. 13 is an explanatory side view of the seedling removal nail.

FIG. 14 is a diagram illustrating the operation of a seedling removal nail.

FIG. 15 is an explanatory view showing an open state of a seedling removal nail.

FIG. 16 is an explanatory diagram showing a closed state of a seedling removal nail.

FIG. 17 is an explanatory view showing an open state of a seedling removal claw and an opening / closing cam.

FIG. 18 is an explanatory view showing the seedling removal claw and the opening / closing cam from an open state to a closed state.

FIG. 19 is an explanatory view showing a closed state of a seedling removal claw and an opening / closing cam.

FIG. 20 is an explanatory view showing the seedling removal claw and the opening / closing cam from a closed state to an opened state.

[Explanation of symbols]

 (16) Seedling supply device (transplant) (21) Seedling table (23) Seedling removal claw (34) Rotary case (35) Drive shaft (center of rotation) (A) Trajectory (N) Seedling

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shuichi Shimizu 1-32 Chaya-cho, Kita-ku, Osaka-shi Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Yozo Ogaki 2-18-1, Inadera, Amagasaki-shi, Hyogo F-term (reference) in Kanzaki High-Tech Koki Seisakusho Co., Ltd. 2B060 AA09 AC02 AD07 AE01 BA03 BB05 CA05 CB06 CB17 CC05

Claims (2)

[Claims] 1. Two seedling picking claws are attached to both ends of a rotary case, and two seedling take-out claws are provided from a seedling table during one rotation of the rotary case.
A vegetable transplant, wherein a transplanting part for taking out seedlings of a plant and planting the seedlings is provided, and the seedlings are taken out from a seedling mounting table by a seedling take-out claw above a rotation center of a rotary case. Machine. 2. The vegetable transplanter according to claim 1, wherein the center of rotation of the rotary case is arranged below the seedling removal position of the seedling mounting table.