JPH0538207A - Planting apparatus of transplantation machine - Google Patents

Abstract

PURPOSE:To transfer a seedling to a planting part in clamped state and forcedly open the claw after the plantation of the seedling by attaching an arm having a seedling-clamping claw to a rotary member and providing a cam member to gradually increase the clamping force of the claw and an opening member to forcedly open the claw. CONSTITUTION:An arm having a claw 46 for clamping a seedling 22 on a shutter 71 is attached in a freely openable state to a rotary member rotating around a horizontal shaft. A force to open the claw part of a pair of arms is applied by a spring. When a cam roller 50 runs on a cam member 54, the claw is gradually closed as the rotation and transfer of the roller in the direction of the arrow E. At the seedling transplantation part, the planting rod 43 is forcedly opened by an opening cam roller 62.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planting device for a transplanter and is used for planting vegetables such as cabbage and lettuce.

[0002]

2. Description of the Related Art Transplanting a continuous paper cylinder collecting pot seedling in which individual paper cylinders are connected at a connecting portion provided with a notch by peeling them off in a row and separating them into individual paper tube seedlings. The machine is Shokoku Sho 63
It is known from the publication of -61886. That is, this transplanting machine has a seedling drawer with the front half of the seedling stand as an inclined surface, a pair of guide plates in the center of the seedling drawer, and a continuous paper cylinder collecting pot seedling row following the guide plates. A pressing plate that presses the side surface is provided, and a stop plate that is in contact with the front side of the continuous paper tube collecting pot seedling row is provided facing the tip of the pressing plate, and a transplanting rod is provided on the stop plate as a tip paper tube pot. In order to allow the stop plate position to pass when the seedlings are rotated after being clamped, a stop plate retracting / moving mechanism that interlocks with the rotation of the transplanting rod is provided, and the seedling stand is placed near the driving wheels (front wheels). However, a handle is provided on the rear part.

[0003]

The planting device of the transplanter described above is provided with an openable shutter (stop plate) which is in contact with the front side of the continuous paper tube collecting pot seedling row in the middle of the seedling feeding path. The pair of arm rods holding the upper seedlings are urged by springs in the opening direction, and the holding plates (claw portions) provided on the arm rods are spaced downward from the position facing the shutter. It was

For this reason, in order to individually separate the seedlings after the seedlings are sandwiched by the claw portions, the block portion of the seedlings is compressed, so that the sandwiching force becomes insufficient and the separation is difficult. In addition, since the claws are inserted into the soil when they are planted separately, it is difficult to open the claws due to the resistance of the soil even if the claws are biased in the opening direction by springs. Therefore, according to the present invention, a pair of planting rods (fingers, holders) provided on a rotating body that is rotationally driven about a horizontal axis is biased by a spring in the opening direction, and a roller provided for the planting rods. When the guide is interlocked with the cam member, the planting rod is closed to clamp the seedlings on the shutter, and further separated into individual seedlings in the process of transition, and the clamping force is gradually strengthened. The purpose of the present invention is to allow the holder to be instantly opened via the roller for forced opening after planting.

[0005]

DISCLOSURE OF THE INVENTION According to the present invention, continuous paper tube collecting pot seedlings in which individual paper tubes are connected at a connecting portion provided with a notch are peeled off in a row and pulled out to obtain individual paper tubes. A transplanting machine for separating and planting seedlings, in the middle of the seedling feeding path, an openable and closable shutter that abuts the front side of the continuous paper cylinder collecting pot seedling row is sandwiched between the shuttered seedlings. In order to achieve the above-mentioned object, the following technical means is taken in the planting device in which the planting rod for separating the paper tube seedling is rotatably provided around the horizontal axis.

That is, according to the present invention, a pair of arms 44 having a claw portion 46 for holding the seedling 22 on the shutter 71 at the tip thereof is provided on the rotating body 42 rotating about the horizontal horizontal axis so as to be openable and closable, and the pair of arms 44 is The claw portion 46 of the
46 is provided with a cam member 54 for gradually increasing the clamping force in the process of moving from the seedling picking portion to the planting position, and an opening body 62 for forcibly opening the claw portion 46 is provided near the planting position of the seedling 22. It is characterized by that.

[0007]

[Function] When the rotating body 42 rotates about the horizontal horizontal axis, the claw portions of the pair of arms 44 swingably attached to the rotating body 42.
When 46 starts to correspond above the shutter 71, the claw portion 46 is closed by the cam member 54 against the spring, and the seedling 22 on the shutter 71 is pinched. When the arm 44 further rotates, the shutter 71 opens to allow the claw portion 46 to pass while holding the seedling 22, and after passing, the shutter 71 is closed to receive the next seedling 22.

When the arm 44 advances from this seedling picking section to the planting position, the claw portion 46 becomes narrower by the cam member 54 to increase the gripping force of the seedling 22 and is separated via the notch of the connecting portion 22A. .. After the seedling 22 is separated, when the arm 44 advances to the planting part, the arm 44 is opened by the spring at the end of the cam member 54, the seedling 22 is planted in the ridge C and opened, and the open body 62 mechanically opens. Forced release.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1 and FIG. 2 showing the overall configuration, reference numeral 1 denotes a machine body which is formed in a rectangular frame shape in a plan view, and a front portion of the machine body 1 is provided with an engine mounting base 3 having a bumper 2 in series. Reference numeral 4 denotes an engine, which is mounted on the mounting table 3 and drives a transmission 5 provided at a rear portion thereof by a transmission body 6.

The output shaft of the transmission 5 is a drive shaft 8 of a front wheel 7 composed of pneumatic tires.
And are connected by a transmission case 10. A chain transmission is installed in the transmission case 10 and the front wheel
The transmission case 10 can be vertically swung around the drive shaft 8 while driving the vehicle 7, so that the left and right front wheels 7 can be vertically adjusted integrally.

At the rear part of the machine body 1, a rear wheel 13 composed of rubber-baked wheels is vertically adjustable through a transmission case 12 which is vertically swingable around a relay shaft 11, and a sprocket 14 is mounted on the relay shaft 11. It is fixedly installed, and a chain is wound around the sprocket provided on the axle 15 of the rear wheel 13 so that the transmission case 12 has a built-in transmission body of ground speed. Reference numeral 16 denotes a planting part, which is arranged between the front wheel 7 and the rear wheel 13 and near the rear wheel 13 side, and is provided with a plurality of planting rods 17 which rotate around a horizontal horizontal axis 16A.

Reference numeral 18 denotes a conveyor belt type seedling stand, which is supported above the engine by a stay 19 or the like.
There is a spare seedling stand 20 on the top. 21 is a chute device,
The seedlings 22 on the seedling stand 18 are dropped and supplied to the planting section 16.
Reference numeral 23 denotes a handle, which has a shaft 24 at a front portion thereof, and the shaft 24 is pivotally supported by the body, whereby the left and right handles can be integrally moved up and down. The 12 is pivotally connected to the connecting rod 25 having a turnbuckle structure.

Reference numeral 26 is a compression wheel device, 27 is a grooving device, 28 is a horizontal detection roller, and the grooving device 27 has a knife shape so that the planting rod 17 collides with the ground while traveling on the road C1. It also has a function to prevent this. Reference numeral 29 is a wheel elevating / lowering device for vertically adjusting the front wheel and the rear wheel by a hydraulic actuator 30 or the like provided on the machine body 1 by vertically swinging the transmission case.

As shown in FIG. 2, the wheel lifting device 29 includes left and right relay links 31 which swing by the operation of the actuator 30.
A lever 32 is provided on the transmission case 10, and the lever 32 and the link portion 33 fixed to the transmission case 10 are connected by the left and right front links 34, and another link portion 35 provided on the transmission case 10 and the transmission case 12 are provided. The link portions 36 are pivotally connected to each other by the rear links 37 on the left and right, and therefore, the transmission cases 10 and 12 that form a parallel link in side view are vertically swung by the operation of the actuator 30, whereby the front wheels 7 and The rear wheel 13 is adjusted up and down, and the handle 23 is linked with the vertical movement of the front and rear wheels.
They are linked together via 25.

Reference numeral A in FIG. 1 indicates a planting posture, B indicates a non-planting posture, and in the posture A, the planting portion is close to the ground (ridge C) and the handle is at the position H1. On the other hand, in posture B, the planting portion 16 is far from the ground, and the handle is at the position H2. When turning in a headland or the like while planting in the posture A, the hydraulic actuator 30 is operated to swing the transmission case 10 in the direction of arrow D in FIG.
Via the link portion 36 of the transmission case 12 to swing the case 12 around the relay shaft 11 in the direction of the arrow D to move the front wheel 7 and the rear wheel.
The center of gravity W of the engine or the like shifts to the vicinity of the front wheels by this relative movement because it is vertically adjusted and displaced back and forth, thereby facilitating turning with the rear wheels 13 being lifted.

On the other hand, the transmission case 12 and the handle 23 are connected to each other by a rod 25.
Since the steering wheel 23 is pushed down, the steering wheel height positions H1 and H2 can be kept substantially constant and the driving operation can be performed without difficulty. In addition, right rear link 37
Is slidably inserted in the link part 36 thereof, and the transmission case 12 is biased in the ground direction by a spring 38,
It is designed to follow the slope and unevenness of the ground.

Referring to FIG. 3 and subsequent figures, the planting section 16 and the nursery stand 1
8. Details of the chute device 21 are shown. <About planting section 16> 16A is a planting drive shaft,
Is supported by a bearing 39, a drive sprocket 40 is fixedly installed at one end of the shaft, and a chain is attached to the sprocket 14 of the relay shaft 11.
It is wound around 41 and driven by the rear wheel 13.

A pair of left and right mounting discs (rotating bodies) 42 are fixedly provided in the middle portion of the axial length of the drive shaft 16A. The discs 42 are integrated by a plurality of distance shafts 42A. A holder (planted claw) device 43 is provided between 42. The holder device 43 includes a pair of casting arms 44 that are L-shaped in a plan view, and a sheet metal claw portion 46 fixed to the tip of the arm 44 with a bolt 45.
44, the boss 47 of the L-shaped bent portion can be freely swung with a bolt 48,
A cam roller 50 is provided at the other end of the arm 44 via a tubular boss 49, and the pair of arms 44 are connected to each other by a connecting plate 51 to be assembled to the unit. The connecting plate 51 is fixed to the disc 42. The plurality of mounting pieces 52 are detachably fixed by bolts 53.

Therefore, the number of units of the holder device 43 is changeable (exchangeable) according to the type of crop. The pair of arms 44 is provided with a helical spring (not shown) around a bolt 48 which is a swinging portion, and urges the pawl portion 46 in the opening direction at all times, and by the cam surface 55 of the cam member 54 and the cam roller 50. The seedling picking section, that is, the shutter 71 is closed at a position corresponding to the upper side.

As shown in FIG. 9, the cam member 54 has an inclined surface 56 at the cam start end. When the cam roller 50 rides on the inclined surface 56, the pawl portion 46 is closed against the spring, and the arrow E in FIG. The cam surface 55 is such that the claw portion 46 is gradually closed as the rotation shifts in the direction, and the cam end, that is, the steeply inclined surface 57 is formed at the seedling planting portion so that the claw portion 46 can be rapidly opened by the coil spring. Is becoming

The cam member 54 is fixed to a cover 60 on the machine body side by a bolt 59 via a collar 58, and a concave portion 61 for positioning the arm 44 is formed on the disk 42 via a cylindrical boss 49. Holder rod of holder device 43 (arm and claw)
4, the base portion is arranged so as to radially project with respect to the radiation X-X with a predetermined angle, for example, a receding angle θ of 10 degrees, whereby the seedlings on the shutter device are separated. At the same time, it is clamped so as not to come off due to centrifugal force, and is open-transplanted in the ridge C.

The outer peripheral surface of the cam roller 50 is arcuate (tsumi) to facilitate contact with the cam surface 55.
The claw portion 46 has a seedling pressing piece 46A and a slime portion 46B. Further, in the vicinity of the open end of the cam member 54, a pair of left and right open cam rollers (open bodies) 62 for forcibly opening the planting rod are provided on the cover 60.

That is, after the seedlings are separated and planted in the ridge C, the claw portion 46 is opened by the coil spring when the cam roller 50 is immersed in the steeply inclined surface 57, but it is not opened due to the resistance of soil or the like. What is sufficient is that the cam roller 50 or the like is mechanically forcibly released by pressing it against the cam roller 62.
It should be noted that the recessed portion 46B of the claw portion 46 contributes to reducing the soil resistance when opened.

At the other end of the drive shaft 16A, there is provided a sprocket 63 for a speed change transmission portion with the shutter device. <Shutter device 64 and its transmission section> Shutter device
64 is provided under the chute device 21. Shutter device
64 is behind the chute substrate 65 as shown in FIGS.
A bracket 67 is attached by a bolt 66, and a pair of shutter arms 68 is provided on the bracket 67 by a bolt 69 so as to be openable and closable.

The shutter arm 68 is provided with a coil spring (not shown) around the bolt 69 and constantly urges it in the closing direction.
A cam roller 70 is provided in the middle of the arm 68, and a receiving piece 71 protruding from the chute substrate 65 is provided at the lower end.
By closing 71, seedlings can be received and stopped. The shutter arm 68 moves the planting part 16 at the ground speed of the rear wheel 13.
It is opened / closed by rotating the opening / closing cam 72 via.

The open / close cam 72 has a cam boss 75 fixed to a drive shaft 74 supported by a bearing 73 on the cover 60.
The 74 has a double shaft structure, and the shift transmission unit 76 is provided in the shaft 74.
have. A sprocket 77 is rotatably fitted onto the outer shaft of the drive shaft 74. Chains 78 are respectively wound around the sprocket 77 and the sprocket 63. The three wheel trains in the embodiment are of different crop types. -Drives according to the number of groups (2, 3, or 4) of holder (planting claw) devices 43 provided on the disk 42 in order to satisfy different planting pitches required according to the planting conditions. Axis 74
Is the rotation speed which is 2 times, 3 times or 4 times the rotation speed of the planted drive shaft 16A.

The shift transmission unit 76 has a boss 75 on the inner shaft (cylindrical shaft).
Corresponding to, the ball 79 is provided at a radial position so as to be retractable and retractable, and the shift rod 80 is provided on the inner shaft so as to be slidable in the axial direction.
In addition, a straight portion and a ball drop concave circumferential groove are provided, and by shifting the shift rod 80 in the axial direction with the knob 81, the shift torque is transmitted to the opening / closing cam 72 via the ball 79. ..

As shown in FIG. 7B, the opening / closing cam 72 enters between the shutter arms 68 and opens / closes via the cam roller 70. The opening / closing cam 72 extends from the cam start end 82 to the cam end 83, and is a gently inclined cam surface 84 and a rest cam surface. 85, having a steeply inclined cam surface 86 symmetrically,
The opening / closing cam 72 gradually opens the shutter arm 68 against the spring, pauses in the fully opened state, and then rapidly closes by the spring.

Here, the relationship between the planting rod and the shutter device will be described with reference to FIG. 8. The seedling 22 is held by the receiving piece 71, and the seedling 22 is held by the claw portion 46 of the planting rod. The seedling connecting part 22A is individually separated and planted through the cuts. In FIG. 8, symbol F is the closing start point of the claw portion 46, and symbol G is the closing end point of the claw portion 46. This is because the cam roller 50 rolls on the cam surface 55 and resists the spring. Done.

During this time, the opening / closing cam 72 is rotating, but its cam surface does not act. Therefore, the receiving piece 71 holds the seedling, and the claw portion 46 is pressed against the seedling 22 by the pressing piece 46A. And sandwich the seedlings. When the seedlings are held by the claws 46, the shutter arm 68 is gradually opened by the cam 72, the claws 46 are passed while the fully opened state is maintained by the pause cam surface 85, and the shutter arm 68 is closed instantly. I is the shutter closing end point, and when the claw portion 46 further advances in this I state,
The separation of seedlings is started by pulling from the shutter from the point of the symbol J, and the seedling connecting portion 22A is cut from the cut.

This cutting is done from the root side of the seedling, and the claw portion 46 gradually increases the clamping force by the cam surface 55 even after the separation, so that the seedling 22
Pushes it into the ridge with the block soil facing downward and opens it at the position of symbol K. During this time, since the aircraft is progressing,
The claw portion 46 moves according to the trochoidal curve shown in FIG.

<About Shooting Device> Referring to FIG. 11, there is shown a shooting device 21 provided below the delivery end of the belt type seedling stand 18. This device 21 includes an upper chute 87 on a chute substrate 65 that is inclined to guide the seedlings 22 to fall.
The lower chute 88 is provided in the upper and lower stages, and is covered with the cover 89.

The upper chute 87 is provided with a pair of left and right chute members 91 that form a funnel portion 90 for holding seedlings that is open and enlarged, and has a rest portion 92 and a first brake passage portion 93.
The first brake passage portion 93 is provided with a movable chute 96 biased in a closing direction by a spring 95 around a fulcrum 94, and the closed position is restricted by a long hole and pin means 97. Lower shoot 88
Has a movable chute 100 biased in the closing direction by a spring 99 around a fulcrum 98, and the closed position is restricted by a long hole and a pin 101, which has a second brake passage portion 102.

Therefore, the seedlings 22 grown by putting soil in the paper tube pots connected to each other by the connecting portion 22A are continuously supplied from the seedling stand 18 to the chute device 21 as one row at a time, and are fed to the chute device 21. Part 93 and second brake passage part 10
While being braked by 2, lower shoot 88
Then, they are aligned and held as a tension, and are supplied to the shutter device.

<Belt type seedling stand> As shown in FIGS. 1 and 11, a belt 105 made of cloth or the like is wound around a driving roller 103 and a driven roller 104, and a connecting portion 22A having a notch is formed on the belt 105. The seedlings 22 connected to each other are placed in a zigzag form. The drive roller 103 is intermittently driven in conjunction with the shutter drive shaft 74.

That is, a drive body 107 having a pin 106 is provided on the drive shaft 74, and the drive body 107 is rotated. On the other hand, the drive roller 103 is provided with a one-way clutch 108 for transmitting the rotation only in the feeding direction as shown in FIG.
The 8 is linked by the 109 link. The connecting rod 109 is swung when the pin 106 of the driving body 107 comes into contact therewith and is intermittently fed through the one-way clutch 108.

The seedling feeding pitch can be changed by adjusting the contact position between the connecting rod 109 and the pin 106 by providing a plurality of pin holes or making the pin holes long. <Regarding Squeezing Wheel Device> Referring to FIGS. 12 and 13, a wheel stay 110 is swingably provided on the relay shaft 11 with a bush or the like, and a squeezing wheel 111 is provided on the stay 110 to suppress both sides of the planting seedling 22. ..

In the stay 110, a U-shaped metal fitting 113 is attached to the cover 112, and the stay 110 is inserted through the metal fitting 113 so that the swing angle θ1 is regulated so that it does not interfere with the planting portion 16 at the time of lifting. In addition, the end edge of the cover 112 is bent and formed to increase the rigidity and serve as a stopper 114 for the stay 110. Further, the relay shaft 11 has a one-way clutch 115 that is connected during forward movement, and this clutch 115 can be turned on and off by a spring 116 and a shifter 117.

Therefore, during transplantation, the planting portion 16 and the like are driven from the rear wheels 13 at the ground speed via the clutch 115, and the planting portion 16 is prevented from reversing, and the shifter is manually moved backward.
The clutch 115 is turned off by 117 to prevent the planting part 16 and the like from being driven. <Others> In the above configuration, the wheel lifting device may be a device other than the one shown in the figure, and the wheel is linked with a horizontal detector or the like to change the left and right vehicle heights so that the body is leveled even on a sloping ground. You may.

[0040]

The present invention is as described above, and a pair of arms 44 having a claw portion 46 for holding the seedling 22 on the shutter 71 at the tip thereof.
Is provided on the rotating body 42 that rotates around the horizontal axis so that it can be freely opened and closed.
A spring for urging the claw portion 46 of the pair of arms 44 in the opening direction is provided,
The claw portion 46 is provided with a cam member 54 for gradually increasing the clamping force in the process of shifting from the seedling picking portion to the planting position, and the seedling 22
Since the opening body 62 forcibly opening the claw portion 46 is provided in the vicinity of the planting position, the seedling 22 can be reliably separated from the connecting portion 22A and can be clamped and transferred to the planting portion without falling.

Further, even if the claw portion 46 sticks into the soil, it can be forcibly released after planting.

[Brief description of drawings]

FIG. 1 is a side view of a transplanter.

FIG. 2 is a schematic plan view of the same.

FIG. 3 is a cross-sectional view of a speed change transmission system.

FIG. 4 is a side view of a planting part.

FIG. 5 is a side view showing the attachment of the planting rod.

FIG. 6 is a plan view and a front view of the same.

FIG. 7 is a front view of a shutter device and a cross-sectional view of a cam.

FIG. 8 is an operational relationship diagram of a shutter and a planting rod (claw).

FIG. 9 is a side view of the operating state of the claw portion.

FIG. 10 is an explanatory diagram of a claw locus.

FIG. 11 is a front view of the chute device.

FIG. 12 is a side view of the compression wheel device.

FIG. 13 is a rear view of the same.

FIG. 14 is an explanatory perspective view of wheel up / down movement.

[Explanation of symbols]

 1 Aircraft 7 Front Wheel 13 Rear Wheel 16 Planting Section 22 Seedling 42 Rotating Body 43 Planting Rod (Holder) 44 Arm 46 Claw 54 Cam Member 62 Open Body

[Procedure amendment]

[Submission date] October 16, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction content]

Reference numeral 26 is a compression wheel device, 27 is a grooving device, 28 is a ridge height detecting roller, and the grooving device 27 is a knife shape and has a planting rod 17 while traveling on a road C1. It also has a function to prevent the vehicle from colliding with the ground. 29 is a wheel lifting device,
The hydraulic actuator 30 or the like provided on the machine body 1 vertically adjusts the front wheels and the rear wheels by vertically swinging the transmission case.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0039

[Correction method] Change

[Correction content]

Therefore, during the transplantation, the planting portion 16 and the like are driven from the rear wheel 13 at the ground speed via the clutch 115, and the one-way clutch 115 is also used in the transplanting posture during the reverse travel.
The reverse rotation of the planting section 16 is prevented by and the clutch 115 is turned off by the shifter 117 to prevent the planting section 16 and the like from being driven when moving . <Others> In the above configuration, the wheel lifting device may be a device other than the one shown in the figure, and the wheel is linked with a horizontal detector or the like to change the left and right vehicle heights so that the body is leveled even on a sloping ground. You may.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Bunji Horie 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd. (72) Katsumi Hori 64, Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Manufacturing Co., Ltd. In-house

Claims (1)

[Claims] 1. A transplanting method in which continuous paper-tube collecting pot seedlings in which individual paper tubes are connected at a connecting portion provided with a notch are peeled off in a row and separated, and are individually planted in individual paper-tube seedlings. Machine,
In the middle of the seedling feeding path, an openable shutter that abuts on the front side of the row of seedlings in a continuous paper tube collection is provided, and the seedlings that are received by the shutters are sandwiched to separate the individual paper tube seedlings horizontally. In a planting device rotatably provided around an axis, a pair of arms (44) having a claw portion (46) for holding the seedling (22) on the shutter (71) at the tip is rotated about a horizontal axis. Rotating body (4
2) openably and closably provided with a spring for urging the claws (46) of the pair of arms (44) in the opening direction, and the claws (46) are moved from the seedling picking section to the planting position. A cam member (54) for gradually strengthening the clamping force is provided, and in the vicinity of the planting position of the seedling (22),
An implanting device for a transplanter, which is provided with an opening body (62) for forcibly opening the claw portion (46).