JP3396785B2 - Seedling transplanter - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mounting a seedling transplanter on a traveling vehicle body and driving the seedling transplanter with a PTO shaft driving force of the traveling vehicle body to perform a seedling transplanting operation. The present invention relates to a seedling transplanter to be performed. 2. Description of the Related Art Conventionally, Japanese Patent Application Laid-Open No. 5-115207 ,
Or, as shown in Japanese Utility Model Laid-Open No. 57-100819,
Raising and lowering the planting frame on the tractor via the link mechanism
The planting frame to support the transplanting unit,
A seedling platform on which the seedlings are placed,
A cultivation roller for covering the seedlings
And the input side is connected to the tractor PTO shaft.
Connect the input shaft of the transplant unit to the output side of the
So, a plurality of implanted uni by extending the input shaft in the lateral direction
The transplant driving force is input to each transmission case on the front side
And slide the transplant unit in the axial direction of the input shaft.
Up and down the transplant unit around the input shaft.
There is a movably mounting technology . [0003] The above-mentioned prior art is based on transplantation.
Whether the unit is moved up and down by the pitching cylinder
The seedlings are planted by the floating action of the planting claws.
Simplification of the structure to keep the depth constant and easy cost reduction
Not be able to do it, and slide the transplant unit left and right
In the case of a structure that adjusts the gap, the same number as the number of transplant units
It is necessary to install a pitching cylinder, etc.
There is a problem that the multiple-row planting structure cannot be easily configured by providing a plurality of transplanting units for the row planting . [0004] Accordingly, the present invention provides a truck.
The planting frame is set up and down on the
The seedling tray on the seedling tray
And a claw for planting pot seedlings.
A cultivation roller for covering the seedlings is provided in the transplant unit.
With the input side connected to the PTO shaft of the tractor
Connect the input shaft of the transplant unit to the output side of the transmission mechanism,
A plurality of transplant units by extending the input shaft in the left-right direction;
Input the transplant drive force to each of the front mission cases.
And slide the transplant unit in the axial direction of the input shaft.
The transplant unit can be moved up and down around the input shaft.
In the seedling transplanter that can be mounted, the rear side of the transplant unit
Is vertically movable by a spring, and the spring is planted.
It is provided to be able to slide left and right freely on the frame, and input
The rear side of the transplant unit, which supports the front side with the shaft, is
The transplanting unit's cultivation roller
Floating operation by ground pressure, planting depth of planting nail and
Improve transplant accuracy by properly keeping the soil of the cultivation roller
And simplify the floating structure of the transplant unit
And cost reduction, and the right and left
The mounting position of the spring is also slid left and right depending on the ride.
Multiple planting units with multiple single-planting units
The structure can be easily configured . An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory plan view of the transplant drive unit, FIG. 2 is an overall side view of the transplanter, and FIG.
Is a transplanter which is mounted on a tractor (2) which is a traveling vehicle body so as to be movable up and down via a three-point link mechanism (3). The transplanter (1) is connected to and supported by the three-point link mechanism (3). Left and right spare seedling mounting tables (5) are placed on the upper left and right sides of the frame (4),
In addition, the left and right driving assist wheels (6) are respectively provided below this, and two rows of transplant units (7a) are provided behind this.
An operator mounting step (8) is provided so as to surround the planting portion (7) having the planting portion (7b) and the left and right sides and the rear side of the planting portion (7). (5) and the central unit (7a) (7) surrounded on four sides in step (8)
For b), seedlings are supplied from both the left and right sides and the rear side. [0006] The planting section (7) includes a pressure-reducing roller (9) for pressing down the ridge surface, and a seedling mounting table (10) on the pressed-down ridge surface.
A hopper-type seedling-planting claw (13) for planting a pot seedling of one strain taken out from the upper hard-type seedling tray (11) by a seedling removal claw (12), and a cultivation roller for covering the seedling after planting. (14), when the planting claw (13), which rises and descends in a substantially elliptical locus by the lifting mechanism (15), rises, receives the seedling supplied and dropped from the seedling removal claw (12), and descends. It is configured so that this implantation is performed in a transplant hole formed in the ridge surface. As shown in FIG. 4 to FIG.
0) is provided with a hard-type seedling tray (11) which 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 (16).
Supported by a guide rail (17) and a guide shut (18), and a table mover (21) coupled to a lateral feed screw shaft (20) constituting a seedling drive system (19). The apparatus is configured so that the seedling table (10) is reciprocated back and forth by the rotation of (20). The seedling mounting table (10) is provided with a front side plate (2).
A longitudinal feed drive and floating sprockets (26) and (27) are provided between the upper and lower sides of the rear side plate (23) and the vertical feed drive and idle sprocket shafts (24) and (25), and these sprockets (26) and (27) are provided. 27) A vertical feed pin (2) to be engaged with the outer bottom depression of each cell (11a) of the seedling tray (11).
A vertical feed chain (29) having a vertical feed drive shaft (30) interlocked with the screw shaft (20) at the end of the front and rear horizontal feed of the seedling mounting table (10). ), The vertical feed drive mechanism (32) installed on the rear outer surface of the rear side plate (23) is operated, and the sprocket (26) is rotated by a fixed amount to perform the vertical feed of the seedling tray (11). . The planting frame (4) includes a main frame (33) disposed in an upper lateral direction, front and rear frames (34) and (35) disposed in a lower lateral direction, and a central lateral direction. And a sub-frame (36) to be installed, and the front and rear frames (34) and (35) are
The first connecting plate (37) and the main and sub-frames (33) and (36) are connected by a second connecting plate (38), and the front frame (34) and the sub-frame (36) are connected by a third connecting plate (39). ) To connect them together. Also, the front ends of the left and right upper and lower protection frames (40) (41) for connecting and supporting the step (8) are connected to the main frame (33) and the rear frame (35) by the respective fastening plates (42) (43) and While being connected and supported so as to be able to slide to the left and right via tightening bolts (44) and (45), around the hexagonal input shaft (47) of the transplantation mission case (46) at the lower front end of each transplantation unit (7a) (7b). A pivot plate (48), which is swingably supported, is connected to and supported by the rear frame (35) via a fastening plate (49) and a tightening bolt (50) so as to be able to slide left and right. [0011] The front and rear upper portions of the portal frame (51) of a side view portal type standing upright on the left and right upper protection frames (40) are connected by front and rear horizontal frames (52a) and (52b). 52b) to a bracket (54) of a fastening plate (53), which is slidably fixed to the left and right via a fastening bolt (53a) via a pivot (55).
6), and the rod (56) supports a fixed piece (57) on the rear right side of each transplant unit (7a) (7b) via a compression spring (58) so as to be vertically movable. A sliding piece (60) swingably mounted on a pin (57) via a pin (59), and a spring seat (62) provided on the lower end side of the rod (56) via an adjustment pin (61) so that the mounting position can be adjusted. With the spring (58) interposed therebetween, each of the transplant units (7a) and (7b) is supported so as to be swingable independently of each other about the input shaft (47). As apparent from the above, the tractor (2)
Up and down the planting frame (4) via the link mechanism (3)
The transplant unit (7) can be provided freely on the planting frame (4).
a) Seedling for supporting (7b) and placing seedling tray (11)
Mounting platform (10) and planting claw (13) for planting pot seedlings
And a cultivation roller (14) for covering the pot seedlings
Units (7a) and (7b), and a tractor
(2) Stepless change to connect the input side to the PTO shaft (65)
The transfer units (7a) and (7) are connected to the output side of the speed mechanism (66).
b) connecting the input shaft (47), and
Are extended in the left-right direction, and a plurality of transplant units (7a)
(7b) Porting drive to each front transmission case (46)
Force, and move in the direction of the axis of the input shaft (47).
The planting units (7a) and (7b) can be slid left and right.
One of the transplant units (7a) (7) around the input shaft (47)
b) is mounted on the seedling transplanter so as to be vertically movable.
The rear side of the knits (7a) and (7b) is spring-loaded (58)
The spring (58) is supported so that it can move up and down freely.
(4) is provided so as to be able to slide left and right. And enter
The transplant unit (7) supporting the front side by the force axis (47)
a) Whether the back side of (7b) is supported by a spring (58)
Cultivation rollers (1) of the transplant units (7a) and (7b).
4) Floating operation with proper ground pressure,
Appropriate planting depth of (13) and soil covering of cultivation roller (14)
To improve the transplantation accuracy, and the transplantation unit (7
a) Simplification and cost of the floating structure of (7b)
While performing the reduction, the left side of the transplant units (7a) and (7b)
The position where the spring (58) is attached is also left by sliding right.
Slide to the right to transplant the single-row plant (7a) (7
b) is provided in plurality to form a multi-row planting structure. Further, a frame base (64) at the base end of the seedling mounting frame (63) supporting the spare seedling mounting base (5) is integrally connected to the upper protection frame (40). At the time of horizontal slide adjustment, the spare seedling mounting table (5) is also slid together at the same time so that the relative position between the step (8) and the spare seedling mounting table (5) is maintained constant. As shown in FIGS. 9 to 11, a bevel case (67) is connected to a PTO shaft (65) of a tractor (2) via a drive shaft (65a) and a continuously variable transmission belt mechanism (66). The input shaft (68) of the swing chain case (69) having the input shaft (47) at the rear end side is connected to the bevel case (6).
7) swingably supported on the output shaft (70),
A planting claw drive system (71) for driving the planting claw (13)
Of the transmission case (46) via a spline-engaged single-rotation clutch (73), a deceleration counter shaft (74) (75), and a limiter unit clutch (76). (47) are interlocked, and a limiter type safety clutch (79) is interposed on an output shaft (78) of a planting transmission case (77) for inputting the planting output shaft (72). The rotation of 78) is transmitted to the rotary case (80) and the planting arm (81) constituting the lifting mechanism (15), so that the planting claw (13) can be vertically planted. A seedling picking drive system (85) having a seedling picking shaft (84) for driving a seedling picking arm (82) and a rotary case (83) of the seedling picking claw (12); A switching gear case (86) for interlocking and coupling with the 84) to shift the speed of the transverse feed shaft (20); and a seedling mounting (10).
The seedling push pin (8) which acts from below the seedling mounting table (10) when the seedling removal claw (12) is removed from the seedling removal stand (10) when the seedling removal claw (12) is removed.
7) A seedling drive system (19) having a longitudinal feed drive shaft (30) for rotating the seedling pushing cam (88) and a seedling connected to a counter shaft (75) of the transmission case (46). The take-out drive shaft (89) and the take-out shaft (8
9) A continuously variable transmission belt (90) and a planting clutch (91) for inter-stock adjustment (also functioning as a limiter type safety clutch)
A clutch shaft (92) interlockingly connected via the like, a seedling output shaft (93) for outputting rotation of the clutch shaft (92) to the seedling drive shaft (84), and a one-turn clutch (7).
3) An operation cam (94) for operating and a seedling output shaft (93)
A planting timing mechanism (9) which is provided between the seedling removing claws (12) and the seedling planting claws (13) to appropriately maintain the operation timing.
5) and a seedling drive system (96) having a seedling output shaft (84) of the transmission case (46). 85)
And a nursery stand drive system (19). As described above, the transplanting machine (1) is driven by the driving force of the PTO shaft (65) of the tractor (2), which is a running vehicle body, to carry out seedling planting work, and the mission case of the transplanting machine (1). In a seedling transplanter having a belt mechanism (66) as a continuously variable transmission mechanism interposed between the PTO shaft (65) and the PTO shaft (65), an output side of the belt mechanism (66) connecting the input side to the PTO shaft (65) is provided. The input shaft (4) of the transplanter (1)
7), the input shaft (47) is extended in the left-right direction, and transplant driving force is input to each of the transmission cases (46) of the plurality of transplant units (7a) (7b). 47) The transplantation units (7a) and (7)
b) is mounted so as to be movable and the transplant units (7a) and (7b) are swingably mounted around the input shaft (47). Then, by moving the transmission case (46) in the axial direction of the input shaft (47), the transplant unit (7a) is moved.
The seedling placement position of (7b) is changed in the left-right direction, the mounting interval of each transplant unit (7a) (7b) is changed according to the ridge interval or the streaking interval, and the planting interval of the vegetable seedling in the left-right direction is changed. In addition to the above, the transmission cases (46) of the transplant units (7a) and (7b) are swingably installed around the input shaft, so that the transplant units (7a) and (7b) are independent from each other. Floating support so as to be swingable, and each transplant unit (7a) (7
b) The interval between the ridge and the ridge surface is kept constant, and even if the traveling vehicle body (2) is tilted due to the unevenness of the groove between the ridges, a multi-row planting operation for planting vegetable seedlings at an appropriate depth is performed. Further, the seedling drive shaft (84) and the seedling output shaft (93) of the transmission case (46) are interlockingly connected via input / output sprockets (97) (98) and a chain (99). The idle rotation shaft (1) on the drive shaft (84)
00), an input sprocket (98) is fixed to the cylindrical shaft (100), and the flange (101) and the drive shaft (8) are fixed to the cylindrical shaft (100).
4) is fixed to the flange (102).
01) and bolts (10) through the elongated holes (103).
4), the timing of the planting nail driving system (71) and the seedling picking and seedling driving system (85) (19) can be adjusted. The present embodiment is constructed as described above, and when each of the transplanting units (7a) and (7b) is laterally moved forward and backward of the seedling mounting table (10), the seedling removal nail is taken from the front and rear direction of the seedling tray (11). The seedling removal operation is performed by operating the (12) and the seedling pushing pin (87) in synchronization with each other, and the seedlings are transferred by transferring the extracted seedlings to the seedling mounting claws (13). Even if the speed ratio between the vehicle speed and the PTO shaft, which is the working speed, changes due to a shift on the machine side, etc., the continuously variable transmission belt mechanism (66) allows
The mission input rotation speed is corrected and controlled so that the speed ratio with the vehicle speed is always kept constant, so that the movement trajectory of the planting claw (13) is kept constant and the planting accuracy is kept stable. When adjusting the gap by sliding each of the transplant units (7a) and (7b) in the horizontal direction, each chain case (69) also slides smoothly along the hexagonal input shaft (47), and is moved by the hexagonal shaft. Each chain case (6
The driving force is also reliably transmitted to 9), and does not affect the driving. On the other hand, the unit clutch (76) provided in the transmission case (46) prevents danger in the case of applying a torque load of all the rows in the multiple row planting, and also provides safety in the planting claw drive system (71). Clutch (79)
Accordingly, the rush resistance of the planting claw (13) at the time of rushing into the soil or prevention of danger at the time of being driven into stone, concrete, or the like can be prevented. When acting as a safety clutch, the tray (11) may be abnormally caught or a seedling removal claw (1
Prevention of danger at the time of biting into the tray (11) of (2) can be achieved, respectively, and work safety can be improved. As is apparent from the above embodiments, according to the present invention, the tractor (2) is mounted on the tractor (2) via the link mechanism (3).
The frame (4) is set up and down freely and attached to the planting frame (4).
Support the transplanting units (7a) and (7b)
Seedling stand (10) on which (11) is placed, and planting pot seedlings
Claw (13) and soil cultivation roller for covering pot seedlings
When (14) is provided in the transplant units (7a) and (7b)
In both cases, connect the input side to the PTO shaft (65) of the tractor (2).
Transplantation unit on the output side of the continuously variable transmission mechanism (66) to be connected
(7a) The input shaft (47) of (7b) is connected,
The force axis (47) is extended in the left-right direction to
G (7a) (7b) Front transmission case (46)
And inputting the transplant driving force to the input shaft (47), respectively.
Slide the transplant units (7a) and (7b) left and right in the core direction
An implantable unit, possibly and around said input shaft (47)
(7a) and (7b) are mounted on a seedling transplanter that can be moved up and down.
The rear side of the transplant units (7a) and (7b) is
8) and vertically supported by the spring (58).
Is provided on the planting frame (4) so that it can be adjusted left and right.
The implant unit supports the front side by the input shaft (47).
The rear side of the socket (7a) (7b) is supported by a spring (58).
So, the soil cultivation roller of the transplant unit (7a) (7b)
(14) Floating operation with proper ground pressure
And the planting depth of the planting claw (13) and the cultivation roller (1)
4) Improving transplantation accuracy by properly maintaining the soil cover
Floaty of transplantable units (7a) and (7b)
Simplification and cost reduction of the
In both cases, slide left and right of the transplant units (7a) and (7b)
Therefore, the mounting position of the spring (58) is also slid right and left.
The single-row transplantation units (7a) and (7b)
The multi-row planting structure can be easily configured by providing a plurality .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory plan view of a transplant drive unit. FIG. 2 is an overall side view of the transplanter. FIG. 3 is an overall plan view of the transplanter. FIG. 4 is an explanatory side view of the transplanter frame. FIG. 5 is an explanatory plan view of the transplanter frame. FIG. 6 is an explanatory side view of the transplant unit. FIG. 7 is an explanatory rear view of the transplant unit. FIG. 8 is an explanatory rear view of the transplant unit. FIG. 9 is an explanatory side view of a transmission case. FIG. 10 is an explanatory front view of a transmission case. FIG. 11 is an explanatory diagram of a drive system of the entire transplanter. [Description of Signs ] (2) Tractor (running vehicle body) (3) Link mechanism (4) Planting frame (7a) (7b) Transplanting unit (10) Seedling table (11) Seedling tray (13) Planting claw ( 14) Cultivation roller (46) Transmission case (47) Input shaft (58) Spring (65) PTO shaft (66) Belt mechanism (stepless speed change mechanism)

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yuji Ohara 5-32-7 Sendagaya, Shibuya-ku, Tokyo Inside Ishikawajima Shibaura Machinery Co., Ltd. (56) References JP-A-5-115207 (JP, A) JP-A Sho 57-16607 (JP, A) Japanese Utility Model Showa 57-100819 (JP, U) Japanese Utility Model Showa 56-990817 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 11/02

Claims (1)

(57) [Claims] ( 1 ) A link mechanism (3) is connected to a tractor (2).
And set the planting frame (4) up and down freely.
The transplant unit (7a) (7b) is supported by the system (4),
Seedling table (10) for placing seedling tray (11) and pot seedling
Planting claw (13) for planting seedlings and cultivation to cover soil for pot seedlings
Soil roller (14) is connected to transplant units (7a) and (7b).
And insert it into the PTO shaft (65) of the tractor (2).
Ported to the output side of the continuously variable transmission mechanism (66) that connects the power side
The input shaft (47) of the unit (7a) (7b) is connected.
And the input shaft (47) is extended in the left-right direction to
Mission cables in front of transplantation units (7a) (7b)
(46), and input the transplant driving force to the input shaft.
Insert the transplant units (7a) and (7b) in the axial direction of (47).
It is slidable left and right and moved around the input shaft (47).
Seedling to which planting units (7a) and (7b) are attached to be able to move up and down
In the transplanter, the rear side of the transplant units (7a) and (7b)
Is vertically movably supported by a spring (58).
(58) to the planting frame (4)
A seedling transplanter characterized by being installed in a plant.