JPH07322730A - Transplanter - Google Patents

Abstract

PURPOSE:To install a seedling placing table so that a worker stops the seedling placing table at a position capable of readily supplying the seedlings and carries out seedling supplying operation and the seedling placing table is slid into the longitudinal direction on the rear side of a traveling car. CONSTITUTION:In this transplanter provided with a seedling placing table 27 to enable free reciprocation and sliding and provided with a seedling feed sensor 117 for detecting a seedling feed period to the seedling placing table 27, a seedling table sensor 118 for detecting reciprocating and sliding position of the seedling placing table 27 is provided and a seedling feed informing means for operating based on each detection result of the seedling feed sensor 117 and the seedling table sensor 118 is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter for ground work such as planting of vegetable seedlings in a field.

[0002]

2. Description of the Related Art Conventionally, as shown in Japanese Patent Application No. 5-343825, a technique for equipping a traveling vehicle composed of a tractor with a plant for transplanting vegetable seedlings and continuously planting vegetable seedlings in a field scene. There is.

[0003]

SUMMARY OF THE INVENTION In the prior art, when the seedling replenishment time of the seedling placing table is detected by a seedling splicing sensor in a structure in which the seedling placing table on which the vegetable seedlings are placed is reciprocally slid, the seedling supplementing work is performed. The seedling loading work is troublesome because the seedling loading platform is stopped away from the operator's seedling loading working position of the tractor, and especially when the seedling loading platform is slid in the front-back direction to move toward and away from the driver's seat. However, there was a problem that seedlings could not be replenished from the tractor.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, in a transplanting machine provided with a seedling table slidably and reciprocally slidably provided with a seedling splicing sensor for detecting a seedling supplement time of the seedling table. A seedling table sensor for detecting the reciprocating sliding position is provided, and seedling splicing notification means for operating based on each detection result of the seedling splicing sensor and the seedling sensor is provided. Since seedlings can be replenished by stopping the seedlings, seedlings can be arranged so that the seedlings can be slid back and forth in the rear of the traveling vehicle. It is possible to construct a multiple-row planting structure by arranging in parallel to each other in the left-right direction without being restricted by the reciprocating sliding width, and it is possible to easily simplify the seedling replenishing work and diversify the seedling table mounting structure. is there.

[0005]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is a rear view of the toolbar portion, FIG. 2 is a side view of the whole, FIG. 3 is a plan view of the same, FIG. 4 is a side view of a transplanter, and FIG.
Is a plan view of the same, and FIG. 6 is a rear view of the same. In the figure, (1) is a tractor which is a traveling vehicle on which an operator rides, and left and right rear wheels (4) and (4) are provided on both sides of a traveling mission case (2) via left and right rear axle cases (3) and (3). , The driver's seat (5) above the mission case (2)
Attached, the mission case (2) under the driver's seat (5)
Left and right lift arms (7) having a hydraulic lifting cylinder (6) arranged on the upper surface and swinging by the cylinder (6)
(7) is rotatably supported on the fulcrum shaft (8), and
A steering handle (9) is provided in front of the driver's seat (5), and left and right preliminary seedling stands (10) (10) for placing supplemental seedlings are arranged on both sides of a bonnet (not shown) in front of the handle (9). . Similar to a conventional tractor, an engine is installed inside the bonnet, left and right front wheels are installed below both sides of the bonnet, and front and rear wheels (4) are driven by the engine to move forward and backward, and a steering handle is provided. By (9), the front wheels are turned to change the traveling course. The traveling vehicle may be configured by a vehicle body equipped with a pair of left and right traveling crawlers, and a steering sensor that automatically detects a traveling course, an actuator that changes the direction of the front wheels, and a detection result of the steering sensor. It is also possible to provide a controller for operating the actuator based on the above, and to provide an automatic steering function for automatically traveling along the ridges detected by the steering sensor.

Further, as shown in FIGS. 7 to 11, a pair of left and right fulcrum plates (1) are provided on both sides of the mission case (2).
1) (11) Fix the front end side with bolts and fix the fulcrum plate (1
1) The bearing plate (12) is welded and fixed to the rear end side, the hitch pin (13) is detachably inserted into the bearing plate (12), and the bearing plate (12) is connected to the mission case (2) through the fulcrum plate (11). A pair of left and right lifting links (14) (14) are provided, a fulcrum shaft (15) is welded and fixed to the front end side surface of the lifting link (14), and the hitch pin (13) is pulled out and the fulcrum shaft is supported on the bearing plate (12). The bearing plate (12) and the hitch pin (13) rotatably attach the fulcrum shaft (15) to the fulcrum plate (11).
The front end of the up-and-down link (14) is rotatably connected to the rear end of the up-and-down link (14) about the fulcrum shaft (15).

Further, a T-shaped gear case (16) in which a short cylinder is integrally fixed to the middle of a long cylinder is welded and fixed between the rear ends of the left and right lifting links (14) (14) and hooked to the gear case (16). A pair of left and right lift links (17) (17) for locking the lower end of the shape is provided, and a U-shaped band body (18) and a tightening bolt (19) are provided on the lower end of the hook shape of the lift link (17). The bolt (19)
The band body (18) is detachably wound around and fixed to the gear case (16) by a semicircle, and the gear case (16) is rotatably attached to the hook-shaped lower end of the lift link (17).
An upper end of the lift link (17) and a distal end of the lift arm (7) are detachably connected by a pin (20). Then, by protruding the ram-shaped piston rod of the lifting cylinder (6), the tip of the lift arm (7) is swung upward, and the gear case (16) is lifted upward through the lift link (17). , The gear case (6) by retracting the piston rod of the lifting cylinder (6)
Is configured to be lowered.

Further, a rectangular tubular tool bar (21), which is a lifting link hitch, is welded and fixed to the lower middle edge of the lifting link (14), and both ends of the toolbar (21) are extended in the left-right direction. The tool bar (21) is horizontally mounted between the left and right rear wheels (4) (4). In addition, a pair of left and right that is equipped with a vegetable seedling transplanter (22), which is a ground work machine that is mounted on the rear side of the tractor (1) so as to be able to move up and down via an elevator link (14), is installed through the toolbar (21). The planting units (23) and (23) constitute a transplanter (22) having a two-row planting structure. The unit frame (24) and the upper and lower rails (2) are attached to the frame (24).
5) A seedling placing table (27) that slides back and forth through the (26) direction, and a chopstick-shaped ejecting claw (1) for taking out one pot of potted seedling from the seedling tray (28) on the upper surface of the seedling placing table (27). 29), a hopper-shaped planting claw (30) for receiving pot seedlings from the extraction claw (29) and planting them in a field scene, and an evenness for suppressing the field scene in front of the seedling planting part of the planting claw (30). A flat roller (31) and a multi-cutter (32) for incising a multi-film (laying before transplanting work) at a position corresponding to a seedling planting portion of a planting nail (30).
And a pair of left and right cultivation soil rollers (33) (33) for covering the soil of the pot seedlings planted by the planting claws (30), a planting mission case (34), and a planting claw drive case (3).
5) (36) (37) and ejection claw drive case (38)
The seedling table drive case (39) is provided in each of the planting units (23) and (23).

Then, the planted mission case (3
Driving force is transmitted from 4) to each of the drive cases (35) to (39) to cause the take-out claw (29) and the planting claw (30) to perform seedling taking-out and seedling planting operations on a predetermined locus, respectively. , The seedling lateral movement by the forward and backward movement of the seedling placing table (27) and the seedling longitudinal feeding by moving the seedling tray (28) to the lower end of the tilting seedling placing table (27) are respectively performed at predetermined planting intervals. It is configured so that pot seedlings are continuously planted in the field scene.

Further, the fastening plate (40) is slidably attached to the tool bar (21) with bolts (41) and (41), and the fastening plate (40) is slid left and right to adjust the offset position. The bearing plate (4) on the fastening plate (40)
2) The front end side of (42) is welded and fixed, and the tubular body (43) is welded and fixed to the rear end portion of the bearing plate (42).
A cylindrical bearing (44) is rotatably attached to the hitch plate (45) forming a part of the unit frame (24).
Flange (46) welded and fixed to the bearing (44)
Bolts (47) to the bearings (4
4) The planted mission case (34) is rotatably held between (44).

Further, the long cylindrical portion of the gear case (16) and the bearings (44) are arranged on the same straight line substantially parallel to the tool bar (21), and the center shaft (48) and the left and right shafts (49) (49) are arranged. A PTO horizontal shaft (50) is rotatably supported by the gear case (16) and the bearings (44). The long shaft of the gear case (16) has a center shaft (4).
8) is pivotally supported, and the center shaft (48) is interlockingly connected to the input shaft (51) of the short cylindrical portion of the gear case (16) through the bevel gears (52) (53), and the rear surface of the traveling mission case (2) is connected. The input shaft (51) is interlockingly connected to the projecting PTO shaft (54) through the universal joint shaft (55) to transmit the engine output of the tractor (1) to the center shaft (48) and to pin both ends of the center shaft (48). The left and right shafts (49) and (49) are detachably and integrally connected to each other via (56) and (56), and the planted mission case (34) and the bearings (4) on both sides thereof are attached.
4) The left and right shafts (49) and (49) are slidably inserted into the shaft (44) in the axial direction, and the left and right shafts (49) and (49) are inserted into the bearing (4).
4) is rotatably supported, and the hexagonal prismatic left and right shafts (49) and (49) are fitted into the transmission input shaft (57) inside the planted mission case (34) to form a double shaft structure. Through the shafts (49) and (57), the planted mission case (3
4) The PTO driving force from the input shaft (51) is transmitted to the inside. Thus, the lifting link (14)
By providing the PTO horizontal axis (50) on the tractor, the distance between the tractor (1) and the transplanter (22) becomes the length of the elevating link (14), and compared with the case where the PTO horizontal axis is provided on the transplanter side. ) To reduce the mounting space of the transplanter (22) to simplify the unit frame (24) structure of the transplanter (22) and reduce the size and weight of the transplanter (22). 50) It is possible to tilt forward around and shorten the length of the machine when the transplanter (22) is raised.

Further, the bearing plate (42) has a uniaxial (5
8), the lower end of the regulating arm 59 is rotatably connected, and the interlocking link 62 is provided between the hitch plate 45 and the regulating arm 59 via the biaxial 60 and the triaxial 61. ) Both ends are rotatably connected, and four axes (63) (6) are provided on the same axis as the one axis (58).
3) via a pair of left and right attitude change plates (64) (64) lower ends connected to the middle (14) of the ascending / descending link, and a pair of two left and right pipe type restrictions provided substantially parallel to the toolbar (21) The insides of the bars (65, 66) are fixed to the posture changing plate (64) by welding, and the middle of each of the posture changing plates (64) (64) is the middle of the hydraulic forward tilt cylinder (67) which is the posture changing means.
A hitch bracket (69), which is rotatably connected to a trunnion type through five shafts (68) in between, is fixed to the rear portion of the traveling mission case (2) by a six shaft (7).
0), the tip of the piston rod (71) of the cylinder (67) is rotatably connected.

Further, the set of two regulating bars (65)
Within the range in which the upper end side of the regulating arm (59) is loosely fitted and inserted between (66) and abuts on each bar (65) (66).
The control frame (59) is swung about the shaft (58) as a fulcrum, and the unit frame (24) is rotated around the PTO horizontal axis (50) within an angle limited by the control arm (59) and the control bars (65) (66). Swings the lifting link (1
4) The transplanter (22) is attached so as to be vertically swingable within a predetermined range, and is made to follow the unevenness of the field or the rolling of the tractor (1), etc., and the left and right planting units (22) (2).
3) Perform floating operation to move up and down separately,
It is configured to prevent the seedling planting depth of the planting claw (30) from changing due to unevenness in the field or rolling of the tractor (1).

Further, the axial center distances of the PTO horizontal axis (50) and the 1-axis (58) and the axial center distances of the 2-axis (60) and the 3-axis (61) are formed substantially equal to each other, and the bearing plate is formed. (4
The parallel link mechanism is formed by 2) and the interlocking link (62), and the fulcrum shaft (15) and the uniaxial shaft (58).
And the axial distances of the 5-axis (68) and 6-axis (70) when the piston rod (71) of the forward tilt cylinder (67) is maximally extended, are formed to be substantially the same. The link (14), the forward tilt cylinder (67) and the piston rod (71) form a parallel link mechanism. The lifting cylinder (6) is controlled to control the lifting link (1
When 4) is swung up and down, the transplanter (22) provided with two sets of planting units (23) (23) including the unit frame (24) through the two sets of parallel link mechanisms described above.
Is configured to move up and down while maintaining a substantially constant posture (seedling planting posture). Further, the two sets of parallel link mechanisms including the regulation arm (59) are compactly mounted within the substantially front and rear width of the elevating link (14).

Further, like the hitch bracket (69), the unit frame (24) is connected to the suspension frame (72) fixed to the traveling mission case (2) via the suspension spring (73). The suspension frame (72) is erected and fixed to the traveling mission case (2), and the screw shaft (75) that expands and contracts by the manual rotation operation of the handle (74) is attached to the upper end side of the suspension frame (72), and the unit frame ( 24) A suspension spring (73) is stretched between the upper end side and the screw shaft (75), and the force of the suspension spring (73) is adjusted by operating the handle (74).
The unit frame (24) rotating around is pulled upward by the suspension spring (73), the ground pressure of the soil soil roller (33) is adjusted according to the hardness or soil quality of the field, and the soil soil cover of the soil soil roller (33) is covered. It is configured to obtain the proper action. The padding roller (33) is attached by adjusting the support height to the unit frame (24) by moving it up and down by the rotation of the handle (76), and the suspension spring (73) is a left and right pair, The unit frame (24) (24) of the pair of springs (73)
(73) Separately connect to the tractor (1) body and adjust the ground pressure of each soil roller (33) (33) of the left and right planting units (23) (23) separately to improve soil soil function. It is configured to increase the sticking accuracy.

Further, as shown in FIG. 8, by lifting the transplanter (22) to the ground by controlling the lifting cylinder (6), the restriction arm (59) abuts against the rear restriction bar (65), and In this state, by controlling the forward tilt cylinder (67) and retracting the piston rod (71), the posture changing plate (64) and the regulating arm (59) move the shaft (58) through the regulating bar (65). (63) swings forward around the fulcrum, and the hitch plate (45) rotates about the PTO horizontal axis (50) through the interlocking link (62), and the entire transplanter (22) including the unit frame (24) To P
It is rotated around the TO horizontal axis (50) and tilted forward to support the transplanter (22) in a forward tilted posture in which it approaches the tractor (1), while the transplanter (22) is lowered in the field scene. After extending the piston rod (71) of the tilting cylinder (67) to return the transplanter (22) to the ground work posture, the elevator cylinder (6) is controlled to lower the transplanter (22) to the ground. A forward tilting cylinder (67), which is a posture changing means for switching the transplanter (22) which is a working machine to a ground work posture or a forward leaning posture, is provided, and when the ascent is raised, the transplanter (22) is tilted forward and the center of gravity of the machine is forward. Move and transplant machine (22)
The rearward projecting amount of is configured to be smaller than that during ground work. In addition, the expansion / contraction stroke of the piston rod (71) is set larger than the floating range of the transplanter (22) set by the restriction bars (65) (66), and the forward tilt angle of the raised position is higher than the forward tilt during ground work. Is getting bigger.

Further, as shown in FIG. 12, the front end of the implantation depth sensor arm (78) is rotatably supported below the front portion of the unit frame (24) through a fulcrum shaft (77).
The leveling roller (31) is rotatably provided on the rear end side of the sensor arm (78) via a shaft (79), and the leveling roller (31) is attached to the unit frame (24) so as to be movable up and down. At the same time, one end of the joining bar (80) is fixed to the sensor arm (78) by welding, and one end of the implantation depth sensor wire (82) provided on the unit frame (24) via the outer receiver (81) is joined to the joining bar (80). 80) Connect to any of the plurality of holes (83) at the other end. By changing the hole (83) for connecting the sensor wire (82), the push-pull amount of the sensor wire (82) with respect to the elevation amount of the leveling roller (31) is changed, and the elevation amount of the leveling roller (31) is changed. It is configured to switch the detection sensitivity of a change in the implantation depth of the sensor wire (82).

A hydraulic switching lift valve (84) for operating the lift cylinder (6) is provided, and a lift lever (85) provided on the right side of the driver's seat (5) is manually operated back and forth to move the lift valve (84). Switching, the hydraulic pump (86) is driven by the engine of the tractor (1), the hydraulic oil of the traveling mission case (2) that also serves as a hydraulic oil tank is pressure-fed to the lifting cylinder (6), and the lift arm (7) is moved upward. The transplanting machine (22) is swung up to raise the transplanting machine (22) while the hydraulic oil of the lifting cylinder (6) is returned to the traveling mission case (2) and the transplanting machine (22) is lowered. In addition, an electromagnetic hydraulic switching attitude valve (89) having an extension solenoid (87) and a contraction solenoid (88) is provided, and the attitude valve (89) is attached to the hydraulic pump (86) via the lift valve (84) in the neutral position. When the attitude valve (89) is switched by exciting the reduction solenoid (88) when hydraulically connected and the lift valve (84) is neutral, the pressure oil of the hydraulic pump (86) is supplied to the forward tilt cylinder (67), Forward tilt cylinder (6
When the piston rod (71) of 7) is retracted and contracted, and the attitude valve (89) is switched by the excitation of the extension solenoid (87), the forward tilt cylinder is generated at all switching positions of the lift valve (84). The hydraulic oil (67) is returned to the traveling mission case (2), and the piston rod (71) of the forward tilt cylinder (67) is advanced and extended.

A limit switch type uppermost sensor (90) which is turned on by the upward swing of the lift arm (7) when the transplanter (22) is lifted to the highest position.
The uppermost sensor (90) detects the state in which the transplanter (22) is supported at the highest position, and the resistance value is linked with the movement of the piston rod (71) of the forward tilt cylinder (67). A potentiometer type expansion / contraction sensor (91) for changing is provided, and the expansion / contraction sensor (91) detects whether the piston rod (71) is in an expanded state or a contracted state, and the transplanter (22) is highest. When the transplanter (22) is lower than the highest position, it automatically returns to the ground work posture while automatically supporting the transplanter (22). It is configured so that the forward tilting control with planting is switched to.

Then, by inputting the uppermost sensor (90),
When the uppermost position support of the transplanter (22) is detected, the contraction solenoid (88) is operated until the contraction position of the tilting cylinder (67) is detected by the input of the expansion and contraction sensor (91). Piston rod (7
1) is retracted, the transplant part (22) is supported in the forward tilted posture, the reduction solenoid (88) is turned off, and the posture valve (89) is returned to the neutral position. On the other hand, when the uppermost sensor (90) input detects that the transplanter (22) is not in the uppermost position and the telescopic sensor (91) detects that the piston rod (71) is not in the extended position, Until the extension position of the tilt cylinder (67) is detected, the extension solenoid (87) operates to move the piston rod (7).
1) is advanced, the transplanting part (22) is supported in the ground work posture, the extension solenoid (87) is turned off, and the posture valve (89) is returned to the neutral position.

Further, FIG. 1, FIG. 8, FIG. 9, FIG.
As shown in FIG. 3, in the transplanter in which the planting unit (23) is attached to the tractor (1) which is a traveling vehicle via the toolbar (21) which is the ascending / descending link hitch, the planting unit (23) has the toolbar (21). 21) is configured to be able to adjust the offset position in the lateral direction, and is equipped with a hydraulic slide cylinder (92) for offsetting the planting unit (23), and slides on the tool bar (21) via a bracket (93). Install the cylinder (92),
The screw portion (95) at the tip of the piston rod (94) of the slide cylinder (92) is fixed to the slide frame (97) having a square frame shape in plan view by the nuts (96) (96),
A slide cylinder (92) is arranged in the frame of the slide frame (97) to prevent collision damage of the slide cylinder (92) by the slide frame (97).
Left and right fastening plates to which the left and right rods (99) (99) base ends having a plurality of pin holes (98) in the axial direction are integrally fixed to the slide frame (97) and the left and right planting units (23) (23) are mounted (40) Bracket (10) of (40)
0 (100) is connected to the tips of the left and right rods (99) (99) via pins (101) (101). Then, by replacing the pin (101) with each pin (98) ..., the distance between the left and right planting units (23) and (23) can be adjusted, and the planting unit (2) with respect to the longitudinal centerline of the machine body can be adjusted.
The position of 3) can be adjusted, and the expansion and contraction of the piston rod (94) enables the left and right planting units (23).
(23) is configured so that the offset position can be adjusted in the same direction at the same time.

Further, as shown in FIG. 14, a left and right slide switch (10) operated by an operator in the driver's seat (5).
2) (103) and an indicator (104) for displaying the left and right slide positions of the planting unit (23) are attached to the operation section near the steering handle (9), and linked with the piston rod (94). A potentiometer type offset sensor (105) for detecting an offset position of the planting unit (23), and the slide cylinder (9)
2) A hydraulic slide valve (107) for hydraulically connecting the hydraulic pump (106), left and right slide solenoids (108) (109) for switching the valve (107), and a left and right for operating each solenoid (108) (109). A slide circuit (110) (111) is provided. Then, a controller (112) composed of a microcomputer is provided, and each switch (102) (103), indicator (104), sensor (105), each circuit (110) (1
11) is electrically connected to the controller (112), and each solenoid (10) is connected through each circuit (110) (111) by operating each switch (102) (103).
8) When the (109) is operated, the valve (107) is switched to operate the slide cylinder (92), the left and right planting units (23) and (23) are simultaneously adjusted in the lateral offset position, and transplanted on a sloping ground. The planting units (23) and (23) are positionally corrected to the upper side of the slope, the vegetable seedlings are planted in the center of the ridge by the planting claws (30), and the offset position of the planting unit (23) is measured by the sensor (105 ) To display on the indicator (104).

Further, as shown in FIG. 15, the fastening plate (40) is formed by a square tube, and a rectangular pillar-shaped tool bar is formed in the square hollow of the fastening plate (40) through a sliding member (113) such as Teflon resin. (21) may be inserted.

Further, as shown in FIG. 16, the slide rail (114) is fixed to the unit frame (24),
The suspension spring (73) is connected to a spring receiving plate (116) that is attached to the rail (114) via rollers (115) so as to be movable left and right, and the spring (73) is kept in a substantially constant posture. (24) can be moved left and right to prevent the force of the spring (73) from becoming a resistance when the planting unit (23) of the slide cylinder (92) is offset.

Further, as shown in FIG. 17, the seedling tray (2
8) A seedling joint sensor (117) for detecting the replenishment time is provided on the seedling placing table (27), and a front end sensor (118) for detecting forward arrival of the seedling placing table (27) that reciprocates in the front-rear direction.
Attached to the unit frame (24), and the seedling table (2
The contact body (119) is fixed to the contact body (7), and when the seedling stand (27) is located at a position other than the front reaching position, the contact body (11) is fixed.
9) is brought into contact with the sensor (118), and the contact body (119)
Sensor (118) when is separated from the sensor (118)
The front arrival of the seedling placing table (27) is detected by the seedling joining sensor (117), and the notification of seedling joining is performed by the buzzer (122).
Since 7) stops at the front reaching position near the driver's seat (5), the spare seedling tray can be easily replenished to the seedling stand (27) from the driver's seat (5) direction. As is clear from the above description and FIG. 19, the key switch (12) of the tractor (1) is
3) and work switch (124) for detecting planting work
, A changeover switch type seedling joint sensor (117) and a changeover switch type front end sensor (118) are provided in series, and the battery (125) of the tractor (1) is a horn unit (126) which is a drive circuit of the buzzer (122). ) Input connection. During the planting work, the seedling joint sensor (11
When the 7) detects the seedling tray (28) replenishment time and is turned on, and the front end sensor (118) detects the front arrival of the seedling mounting table (27) and returns to the on state, the buzzer (122) is sounded. While notifying the operator of the tractor (1), the operator stops the planting work and carries out the seedling splicing work to turn on the reset switch (127) to turn on the buzzer (12).
2) It is turned off, and the transplanting machine is provided with a seedling mounting table (27) slidably movable back and forth and a seeding splicing sensor (117) for detecting the seedling supplementing time of the seedling mounting table (27). In the above, a front end sensor (118) which is a seedling stand sensor for detecting the forward folding back position of the seedling placing table (27) by reciprocating sliding is provided, and the seedling joint sensor (117) and the front end sensor (1) are provided.
A buzzer (122) that is a seedling splicing notification means that is activated based on each detection result of 18) is provided, and a seedling mounting table (27) is provided at the front position of the unit frame (24) where workers can easily replenish seedlings.
The seedling mounting table (27) is arranged so that the seedling mounting table (27) is slidable in the front-rear direction at the rear side of the tractor (1). Independent seedling mounts (27) are arranged side by side in the left-right direction without being restricted by the reciprocating sliding width to form a multi-row planting structure, simplifying seedling replenishing work and mounting seedling mounts (27). The purpose is to diversify the structure.

Further, as shown in FIG. 18, an elevating frame (121) is slidably mounted on the unit frame (24) through a guide rail (120) so that the elevating frame (121) can be attached to the front and rear portions of the elevating frame (121). Leveling roller (31)
And the soil roller (33) are attached, and when the soil roller (33) is adjusted up and down by operating the handle (76), the leveling roller (31) for detecting the seedling planting depth of the planting claw (30).
Is moved up and down at the same time as the cultivating soil roller (33) to change the planting depth detection reference height.

Further, as shown in FIG. 20, the take-out claw (2
9) A vertical feed chain (128) for sending the seedling tray (28) to the seedling take-out position, a vertical feed sprocket (129) provided with the chain (128), and a recovery guide (provided on the lower outer circumference of the sprocket (129). 130) and a collapsible recovery case (132) that is deployed and supported by a chain (131)
And the winding prevention plate (133) are provided on the seedling table (27). Then, the seedling tray (28) from which the seedlings have been picked up by the picking claws (29) is guided by the recovery guide (130) and the winding prevention plate (133) so as to be located substantially directly below or on the back side of the seedling mounting table (27). It is configured to be moved to the collection case (132). A discharge roller may be provided instead of the winding prevention plate (133), and the end of the recovery guide (130) is extended above the recovery case (132).

[0028]

As is apparent from the above embodiments, the present invention provides a seedling mounting table (27) slidably in a reciprocating manner, and a seedling splicing sensor (1) for detecting the seedling replenishing time of the seedling mounting table (27).
In the transplanter provided with 17), a seedling table sensor (118) for detecting the reciprocating sliding position of the seedling placing table (27) is provided, and the seedling joint sensor (117) and the seedling table sensor (118) are used as detection results. Seedling notification means (122) to be operated based on
Since the seedling mounting table (27) is provided, the seedling mounting table (27) can be stopped at a position where the operator can easily replenish the seedlings, so that the seedling mounting table (27) can be moved back and forth on the rear side of the traveling vehicle (1). The seedling mounts (27) can be arranged so as to slide in any direction, and independent seedling mounts (27) for each row are arranged side by side without being restricted by the reciprocating sliding width. The row planting structure can be configured, and the seedling replenishing work can be simplified and the seedling table (27) attachment structure can be easily diversified.

[Brief description of drawings]

FIG. 1 is a rear view of a toolbar unit.

FIG. 2 is an overall side view.

FIG. 3 is an overall plan view.

FIG. 4 is a side view of the transplanter.

FIG. 5 is an explanatory view of the same plane.

FIG. 6 is a rear view of the same.

FIG. 7 is a plan view of a toolbar section.

FIG. 8 is a side view of a lifting link unit.

FIG. 9 is a side view of a lift link portion.

FIG. 10 is a side view of the regulation bar portion.

FIG. 11 is a plan view of a PTO horizontal axis portion.

FIG. 12 is a hydraulic system diagram.

FIG. 13 is an exploded perspective view of a toolbar unit.

FIG. 14 is a control circuit diagram of a slide cylinder.

FIG. 15 is a side sectional view of a toolbar portion.

FIG. 16 is a plan view of a hanging spring portion.

FIG. 17 is an explanatory view of the seedling joint sensor installation.

FIG. 18 is an explanatory diagram of how the soil roller is attached.

FIG. 19 is a seedling connection alarm circuit diagram.

FIG. 20 is an explanatory view of collecting seedling trays on the seedling mounting table.

[Explanation of symbols]

 (27) Seedling stand (117) Seedling joint sensor (118) Front end sensor (Seedling stand sensor) (122) Buzzer (Seedling joint notification means)

Claims (1)

[Claims] 1. A seedling stand is provided so as to be slidable back and forth,
In a transplanter, which is provided with a seedling splicing sensor that detects the seedling replenishment time of the seedling mounting table, a seedling table sensor that detects the reciprocating sliding position of the seedling mounting table is provided, and based on each detection result of the seedling splicing sensor and the seedling mounting sensor. A transplanter characterized by having a seedling splicing notification means to be activated.