JP2000102305A - Transplanting apparatus of vegetable transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem of necessitating the support of a transplantation claw receiving a seedling from a seedling picking claw of a vegetable transplanter in freely liftable state using a lifting and opening mechanism and the transplantation of the seedling to a proper position at the right or left of a ridge by shifting the transplantation claw in the right or left direction at the lowering motion of the claw. SOLUTION: Two sets of lifting and opening mechanisms 32, 32 are placed at the right and left sides of a transplanter relative to the moving direction, transmission shafts 282, 282 are provided to transmit the lifting force to both lifting and opening mechanisms, the transmission shaft is used as the rotary center of the lateral reciprocating rotary motion of the lifting and opening mechanisms, the power to effect the lateral reciprocation of the lifting and opening mechanisms is taken out from the transmission shaft and the lateral reciprocating motion is synchronized with the lifting rotation of the transplantation claw 66.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanting nail for extracting a seedling from a seedling tray on a seedling table of a vegetable transplanter, and transplanting a transplanting nail comprising an aperturer into an ridge along an elliptical locus. Related to a drive mechanism.

[0002]

2. Description of the Related Art Conventionally, a seedling tray on which vegetable seedlings have been grown is placed on a seedling mounting table, and slide shafts are horizontally provided on the rear part of the body, and the seedling table is slidably mounted on the slide shafts. Arrangement, perform vertical feed drive of the seedling tray at the end position of the left and right reciprocating motion of the seedling mounting table, guide the vegetable seedlings to the seedling picking position by horizontal feed drive,
A technique of taking out a vegetable seedling with a seedling picking nail, throwing it into a transplanting nail, rotating the transplanting nail, and transplanting it to a field is known. In the mechanism for driving the lifting and lowering of the transplant nail, the transplant nail moves up and down on the same line in the front-rear direction with respect to the lateral width direction of the body. The transplanting nail and its raising and lowering drive mechanism are arranged in two sets on the left and right, the transplanting nails are also arranged in two sets on the left and right, and the two sets of seedling picking nails that take over the vegetable seedlings are placed on the wide and wide seedling mounting table. A technique of extracting a seedling from a seedling tray, transferring it to a transplanted nail, and performing double-row planting for transplantation has also been known. It is also known that the transplant portion on the fuselage is integrally supported on the frame together with the engine and the like, and the frame is supported so as to be slidable left and right with respect to the traveling portion. It was intended to be transplanted to the right and left upper positions.

[0003]

In the prior art, the transplanting claws are moved up and down on the same line with respect to the lateral width direction of the body, so that the transplanting position is changed in the lateral direction on the ridge when transplanting. It was necessary to shift the aircraft to the left and right to move straight ahead, which required skilled workers.
Further, in the configuration in which the frame including the transplant portion is slid left and right with respect to the traveling portion, the frame including the transplant portion is slid using a drive actuator such as a hydraulic cylinder or a motor. In addition, since the above-mentioned drive actuator was required, the number of parts increased and the cost increased. Further, in the above-described two-row planting vegetable transplanter, since the left and right transplanting claws were fixed at the mounting position on the machine side, the type of vegetable seedling to be transplanted with the spacing between planting stripes and a method of growing vegetables were used. It was not versatile because it was not configured to be easily adjusted together.

[0004]

The present invention uses the following means in order to solve the above problems. That is, in a vegetable transplanter in which a transplanting nail that inherits and holds a seedling from a seedling picking nail is supported by an elevating opening / closing mechanism so as to be able to be driven up and down, and the transplanting nail is lowered to plant a seedling on a ridge. The upper end of the rotation trajectory is set below the seedling claw, and the lower end of the trajectory is swung from the position of the seedling claw to the right or left with respect to the traveling direction of the machine. Further, the power for swinging the transplanting nail to the left or right is taken out from the elevating opening / closing mechanism, and the timing of raising and lowering the transplanting nail and the timing of swinging the transplanting nail to the left or right are synchronized. Further, two sets of the elevating opening / closing mechanism are arranged on the left and right with respect to the traveling direction. Further, the implant pawl supporting side of the elevating opening / closing mechanism is reciprocated at a fixed angle around a transmission shaft for transmitting the elevating drive to the elevating opening / closing mechanism. In addition, the center of rotation of the raising and lowering mechanism for raising and lowering the transplanted nail is placed on the same line in the front-rear direction. Further, two sets of the lifting / lowering mechanism are disposed on the left and right with respect to the traveling direction, and the lower end of the rotation trajectory of the transplanting nail supported by the left / right lifting / lowering mechanism at the time of lowering of both the nails is either left or right of the seedling picking position. The amplitude to be swung to one side is freely adjustable. Further, two sets of the raising / lowering opening / closing mechanism and the transplanting nail are disposed on the left and right, and two sets of seedling picking nails for supplying seedlings to the transplanting nails of the two raising / lowering opening / closing mechanisms are provided, and a single seedling on the seedling mounting table for single-row planting is provided. It is configured to extract seedlings from the tray.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an overall plan view of a vegetable transplanter for two-row planting, and FIG.
FIG. 3 is a cross-sectional view showing a transplantation state, FIG. 3 is a side cross-sectional view of a left-right reciprocating mechanism of a transplanting pawl elevating opening / closing mechanism, FIG. 6 is a cross-sectional view taken along the line AA of FIG. 3 showing a configuration for converting the rotation of the transmission shaft into reciprocating motion, and FIG. FIG. 8 is a cross-sectional view showing the state, and FIG. 8 is a plan view showing a double-row elevating opening / closing mechanism to which seedlings are supplied from a single seedling mounting table and a seedling picking nail.

Next, the walking type vegetable transplanter for multi-row planting of the present invention will be described from the overall configuration. As shown in FIGS. 1 and 2, an engine frame 2 is disposed at a front portion of the fuselage,
An engine 4 is mounted on the engine frame 2, and transmits power via a pulley, a belt, and the like to a transmission case 3 fixed to the rear of the engine frame 2, and a transplant device 5 is disposed behind the transmission case 3. Have been. Further, the main frame 1 is protruded toward the rear of the fuselage, and the seedling mounting table 34 is disposed so as to be slidable left and right.
At the rear end, a traveling clutch lever, a work clutch lever, and the like are arranged, and an operation unit 6 is configured. Further, the upper side and the side of the engine 4 and the transmission case 3 are covered by a cover 9, so that the spare seedling stands 10 can be placed on both left and right sides of the front part of the fuselage.

[0007] An axle case 18 is arranged below the transmission case 3.
Rear running drive cases 12 are pivotally supported at both ends so as to be vertically rotatable. A traveling drive wheel 16 is supported at the end of the rear traveling drive case 12 so as to be capable of traveling. A support frame 19 extending laterally in the traveling direction is laid on the front of the engine frame 2, and the support frame 19 is
One end of a front wheel support 52 that supports the front wheel 15 is rotatably supported at both ends. The front wheel support 52 and the rear traveling drive case 12 are connected to each other in an interlocking manner, and the mounting angle is changed with respect to the vehicle body so that the vehicle body can be raised and lowered in accordance with the ridge height. Further, the axle case 1
The support frame 19 and the support frame 19 are configured to be extendable and contractible in the left-right direction, so that the treads of the front wheels 15 and the traveling drive wheels 16 and 16 can be adjusted according to the ridge width.

The transplanting device 5 at the front and rear central portions of the main frame 1 is composed of a pair of left and right transplanting claws 31 and up-and-down opening / closing mechanisms 32 and 32, and is formed at the rear portion of the main frame 1 to be wide for two-row planting. A seedling mounting table 34, a seedling feed drive mechanism, and the like are arranged.

The mechanism for raising and lowering the transplanting nails 31
Are arranged on the left and right side surfaces of the transmission case 3, respectively, so that the power synchronized with the seedling feeding drive is transmitted.
Further, power is transmitted from the transmission case 3 to a seedling picking nail driving mechanism (not shown) to drive the seedling picking nail 66. Further, a driving force is transmitted from the transmission case 3 into the seedling feed drive case 160 via a universal joint or the like (not shown), and the horizontal feed shaft 85 and the vertical feed drive shaft 123 are driven. While being reciprocated intermittently, the seedling tray on the seedling mounting table 34 is conveyed downward by a fixed amount at the end position of the left and right reciprocating movement of the seedling mounting table 34. Then, the vegetable seedlings are conveyed from the seedling tray to the transplanting nails 31 by the seedling collecting nails 66, the transplanting nails 31 are lowered, rushed into the ridges, opened, dropped and planted, and transplanted by a cover soil ring (not shown). It pushes down the soil on both sides of the position and transplants it.

In this embodiment, the vertical opening / closing mechanism 32 for double-row planting is formed symmetrically on both left and right sides of the transmission case 3, as shown in FIG. The lifting mechanism 32 will be described. A planting transmission case 45 that constitutes the elevating opening / closing mechanism 32 is disposed on the side surface of the transmission case 3, and a lifting driving force synchronized with the seedling claw 66 and the traveling drive is transmitted from inside the transmission case 3. Two sets of rotary cases 240 and 241 are connected to the rear portion of the planting transmission case 45 to support the transplant arm 230 so as to be able to move in a substantially vertical direction in parallel, and a transplant nail fixed to the rear end of the transplant arm 230 is provided. 31 is driven by drawing an elliptical locus.

That is, as shown in FIGS. 3 to 5, a first rotary shaft 243 projects rightward from the planting transmission case 45, and a first rotary case 240 is fixed to the first rotary shaft 243. The first rotary case 240 is rotated forward with respect to the planting transmission case 45. A second rotary shaft 244 is supported at the other end of the first rotary case 240, and a second rotary case 241 is provided at a right end of the second rotary shaft 244.
Is fixed, and a second rotary case 241 is pivotally supported at the end of the first rotary case 240 so as to be rotatable in the reverse direction.
A third rotating shaft 246 is pivotally supported at the other end of the second rotary case 241, and a transplant arm 230 is fixed to the right end of the third rotary shaft 246, and the transplant arm 230 rotates the second rotary case 241. It is rotated in the opposite direction to the direction.

A recess for accommodating the cam 271 on the third rotating shaft 246 is formed at the front of the transplant arm 230. The front portion of the reciprocating rod 270 is inserted into the recess at the front portion of the transplant arm 230, and the front end of the reciprocating rod 270 is in contact with the cam 271. The advance / retreat rod 2
The rear portion 70 is connected to the substantially beak-shaped transplanting claw 31, and the reciprocating rod 270 is slid backward, whereby the transplanting claw 31 is opened forward and backward.

Then, power is transmitted from the transmission case 3 side to the first rotary shaft 243 via the planting transmission case 45, and the drive of the first rotary shaft 243 is transmitted to the first rotary case 240, One rotary case 2
40 is rotated forward. The first rotary case 24
0 is rotated and the internal gear mechanism is driven, and the second rotary case 241 is rotated via the second rotary shaft 244 in a direction opposite to the rotation direction of the first rotary case 240. Similarly, the second rotary case 24
By rotating the first arm, the internal gear mechanism is driven, and the transplant arm 230 is rotated via the third rotation shaft 246 in the opposite direction to the second rotary case 241, that is, in the same direction as the first rotary case 240. The transplant arm 230 is moved up and down while the transplant arm 230 is kept horizontal to the ground.
The transplanting claw 31 is moved up and down along with 30.

Therefore, the first rotary case 2 can be used without using the guide frame provided on the body side as in the prior art.
The transplanting pawl 31 can be driven up and down only by the 40 and the second rotary case 241 and the gear mechanism inside thereof, and is engaged with a rail or the like provided on a frame on the machine side to guide the driving of the transplanting pawl 31 up and down. It is not configured so that the substantially elliptical trajectory can be tilted rightward or leftward with respect to the traveling direction in a rear view of a substantially elliptical trajectory in a side view in which the transplant nail 31 is vertically moved as described later. I have.

In order to prevent the lifting mechanism 32 from engaging with a rail or the like provided on the body side as in the prior art, one rotary case is connected to the planting transmission case 45 in an interlocking manner. Alternatively, the transplant arm 230 may be pivotally supported by a crank arm connected to the rear portion, and one end of the transplant arm 230 may be slidably guided by a guide rail erected on the planting transmission case 45. .

As shown in FIGS. 3 to 6, the elevation opening / closing mechanism 32 has a cylindrical base frame 281 having a rectangular cross section as a support component on the side surface of the transmission case 3. As shown in FIG. A rotation transmission fulcrum shaft 282 is supported on the left side of the base frame 281 in a substantially vertical direction. The upper part of the rotation transmission fulcrum shaft 282 protrudes above the upper part of the base frame 281, and the planting transmission case 45 of the elevating opening / closing mechanism 32 is pivotally supported on the upper part.

A gear case 45a is formed on the right side of the front part of the planting transmission case 45, bearings 288 and 289 are disposed above and below the gear case 45a, and an upper part of the rotation transmission fulcrum shaft 282 is mounted on the bearings 288 and 289. It is pivoted. That is, the planting transmission case 45 is rotatably supported about the rotation transmission fulcrum shaft 282 as a center of rotation, and together with the rotary cases 240 and 241 and the transplant arm 230 arranged in front of the planting transmission case 45. The transplant nail 31 is supported rotatably left and right.

A first rotary case 24 is provided on the side surface of the rear part of the planting transmission case 45 on the side of the transmission case 3.
0, the second rotary case 241, and the transplant arm 230 are arranged in this order, and the transplant claw 31 is arranged on the side surface on the opposite side (the rotary case 240/241 side) at the rear of the transplant arm 230, and the elevating opening / closing mechanism is provided. The width of the transplanting device 4 composed of the transplanting nail 32 and the transplanting nail 31 is made as narrow and compact as possible.

Further, a rotation transmission fulcrum shaft 282, which is a rotation fulcrum, is pivotally supported on the transmission case 3 side in front of the planting transmission case 45 via a gear case 45a. The transmission case 45 is disposed at a position detoured to the side from the extension line connecting the two, and the entire length of the implanting device 4 is short and compact, and the transplantation transmission case 45 is connected to the rotation transmission fulcrum shaft 282 and the base frame 281 which are support members. The load is small and the rigidity is kept high.

When the planting transmission case 45, which is rotatable to the left and right, is arranged in the front-rear direction corresponding to the traveling direction of the machine body, the seedlings are inherited by the transplanting nails 31 from the seedling collecting nails 66 (dropping). The rotation transmission fulcrum shaft 282, which is a rotation fulcrum, is positioned on a straight line connecting the seedling picking nail 66 and the transplanting nail 31 at this time, so that alignment at the time of assembly can be easily performed, and seedling transfer is performed. At this time, the positional accuracy of the transplant nail 31 is increased, and the transfer of the seedlings is ensured. Further, it is easy to set the amplitude for turning the transplanting nail 31 rightward and leftward equally on the basis of the straight line connecting the seedling picking nail 66 and the rotation transmitting fulcrum shaft 282, and it is easy to inherit the seedlings. It is easy to determine the implantation position that is swung rightward or leftward from the position.

Next, a drive transmission structure from the transmission case 3 to the planting transmission case 45 of the lifting mechanism 32 will be described. Base frame 28, which is the support component
A PTO shaft 280 having a shaft center on the left and right is supported inside 1. Through the PTO shaft 280, power synchronized with the seedling driving is input. A bevel gear 283 is fixed to the left end of the PTO shaft 280, and a bevel gear 284 fixed to the rotation transmission fulcrum shaft 282 is engaged with the bevel gear 283.

Further, a horizontal shaft 285 which is perpendicular to the rotation transmitting fulcrum shaft 282 and is substantially horizontal is supported by the gear case 45a, and the rotation transmitting fulcrum shaft 282 is bevel gears 286 and 287 from the upper and lower middle portions. Power is transmitted to a horizontal shaft 285, and the driving sprocket 255 is fixed on the horizontal shaft 285, and the rotary case 24 is connected via a chain 256.
0,241, and as described above, the transplanting pawl 31 is driven up and down to rotate in synchronization with the running drive. As described above, the rotation transmission fulcrum shaft 282 which is the rotation fulcrum of the elevating opening / closing mechanism 32 also has the function of the drive transmission shaft.
The number of components can be reduced to reduce costs, and the lifting / lowering mechanism 32 and its supporting components can be simplified.

The bevel gear 28 meshing with each other
6.287 are the same gears, and drive sprocket 25
5 and the driven sprocket 257 are sprockets having the same number of teeth, and the rotation of the rotation transmission fulcrum shaft 282 is transmitted to the rotary cases 240 and 241 without being reduced, so that the rotation transmission fulcrum shaft 282 makes one rotation. By doing so, the rotary cases 240 and 241 are rotated, and the up-and-down rotation of the transplant nail 31 is rotated by one rotation, so that it is easy to synchronize with the left and right reciprocating motion of the transplant nail 31 as described later.

Further, the lower part of the rotation transmitting fulcrum shaft 282 projects downward from the lower part of the base frame 281, so that the power synchronized with the power for raising and lowering the transplanting claw 31 can be taken out via the elevating opening / closing mechanism 32. I have. One end of a crank arm 291 is fixed below the rotation transmission fulcrum shaft 282, and a connecting pin 29 is attached to the other end of the crank arm 291.
2 is protruded and is rotated together with the rotation transmitting fulcrum shaft 282. The rotational movement of the connecting pin 292 is converted to reciprocating motion by a reciprocating drive.

That is, a stay 294 is projected from the lower part of the base frame 281 to the left rear, and a boss 295 is fixedly provided at an end. An interlocking shaft 296 having an axis parallel to the rotation transmitting fulcrum shaft 282 is pivotally supported in the boss 295. One end of a swing arm 300 as a reciprocating drive is pivotally supported below the interlocking shaft 296, and the swing arm 300
A long hole 300a is opened on the other end side of the, and the connecting pin 292 is slidably inserted into the long hole 300a. When the connecting pin 292 is rotated together with the crank arm 291, the swing arm 300 is reciprocated within a certain angle range. That is, the rotational motion of the crank arm 291 is converted into a reciprocating motion, and the interlocking shaft 296 of the base of the swing arm 300 is reciprocated within a certain angle.

A lower portion of a connecting arm 297 having a U-shape in a side view is fixedly mounted on the upper portion of the interlocking shaft 296, and one end of a connecting rod 298 as a connecting member is pivotally mounted on the upper portion of the connecting arm 297 so that the mounting position can be adjusted. The other end of the connecting rod 298 is pivotally supported on the lower surface in the middle of the planting transmission case 45. Therefore, when the interlocking shaft 296 is reciprocated through the swing arm 300, the connecting arm 297 is rotated.
Is also reciprocated about the interlocking shaft 296, and the connecting rod 29
8, the transmission transmission case 45 is rotated by the rotation transmission fulcrum shaft 282.
Is transmitted.

The reciprocating rotation of the planting transmission case 45 is configured to reciprocate once when the rotation transmitting fulcrum shaft 282 is rotated once. In addition, since the transplanting pawl 31 is configured to rotate once by moving the rotation transmitting fulcrum shaft 282 once as described above,
The planting transmission case 45 is reciprocated once while the transplant nail 31 is raised and lowered once.

When the seedling is transferred to the transplanting nail 31, the seedling picking nail 66, the transplanting nail 31 and the rotation transmitting fulcrum shaft 282 are arranged on the same straight line in the front-rear direction. Is set so that the upper end of is positioned substantially below the seedling catching nail 66 when the seedlings are inherited. And, from the inherited position, the transplant nail 3
By lowering 1, the planting transmission case 45 starts to rotate left or right, so that the trajectory of the transplanting claw 31 can start to swing left or right, and when the rotation transmission fulcrum shaft 282 is rotated by a half rotation. When the transplanting nail 31 reaches the lower end of the trajectory (that is, the transplanting position), the planting transmission case 45 reaches the terminal position of the reciprocating rotation, and transplants the transplanting case 45 to a position farthest to the right or left from the inherited position. When the transplanting nail 31 is raised and the planting transmission case 45 is rotated in the reverse direction and is most raised, the transplanting nail 31 returns to the original inherited position.
And the timing of the reciprocating rotation of the planting transmission case 45 can be synchronized without shifting.

The angle of reciprocating rotation about the rotation transmitting fulcrum shaft 282 of the planting transmission case 45, that is, the amplitude of swinging the lower end of the trajectory of the transplanting nail 31 to one of right and left is adjustable. It has become. That is, the connection arm 29
7, a detent hole 297a which is long in the front-rear direction and has a circular arc shape in a plan view is formed on the upper surface formed in a “U” shape in side view,
A hole at the center of the front and rear of the detent hole 297a is opened on an extension of the interlocking shaft 296, and is a center of rotation of the connecting arm 297 and a dead point.

The connecting rod 298 is inserted into the detent hole 29
7a, the connecting rod 298 does not swing even if the connecting arm 297 swings, and the planting transmission case 45 does not rotate in the left-right direction. The lower part of the locus of the transplant nail 31 is not swung right and left from the inherited position of the seedling from which the seedling has been inherited from 66.

A connecting rod 298 'when fitted at an arbitrary position on the front side (the rotation transmitting fulcrum shaft 282 side) of the front / rear center position of the detent hole 297a, and the rear side (the transplanting nail 31 side) from the center position. Connecting rod 2 when fitted to
98 ", the direction in which the connecting rod 298 is swung can be reversed left and right, and the rear of the planting transmission case 45 and the transplanting pawl 31 from the front-rear position is the rotation transmitting fulcrum shaft 2.
It is possible to reciprocate in a range of a constant angle around 82. When the position of the detent hole 297a in which the connecting rod 298 is fitted is further away from the front / rear center position, the amount by which the planting transmission case 45 is rotated via the connecting rod 298, that is, It is possible to increase the amplitude swinging to either the left or right from the seedling succession position.

The crank arm 291 and the swing arm 300 for converting the rotary drive into the reciprocating drive, and the connecting arm 29 for transmitting the swing drive to the planting transmission case 45.
7 and the connecting rod 298 are also provided on the elevating opening / closing mechanism 32 disposed on the right and left sides of the right and left, and on the rotation transmitting fulcrum shaft 282 'which is the center of rotation of the planting transmission case 45' constituting the right elevating opening / closing mechanism 32. The driving force is transmitted from the right end of the PTO shaft 280, and the PTO shaft 280 is rotated around the rotation transmission fulcrum shaft 282 ', so that the right transplanting nail 31 is shifted to the right seedling removing nail 66.
The transplanting position can be shifted right or left from the inherited position of the immediately preceding seedling.

Therefore, by swinging the lower end side of the rotation trajectory of the left and right transplanting claws 31 to either the right or left from each inherited position, it is possible to simultaneously implant two rows and adjust the row interval, It is possible to transplant two strips at appropriate positions in the left and right widths on the ridge without shifting the running position on the fuselage side from side to side.

The right and left elevating opening and closing mechanisms 32.3 are provided.
In the case where the connecting rod 298 is set at the front side of the detent hole 297a of the connecting arm 297 and is set on the enlarged side between the strips, as shown in the cross-sectional view showing the implanted state shown in FIG. As the transplanting nail 31 is lowered in the right and left reciprocating rotation direction of the right transplanting nail 31, the trajectory of the transplanting nail 31 is swung to the right outward from the inherited position of the seedling from the right seedling picking nail 66, and at the same time, the left transplanting is performed. As the nail 31 is lowered, the trajectory of the transplant nail 31 is swung to the left outward from the inherited position of the seedling from the seedling collecting nail 66 on the left side, so that the interval between the transplanting strips is widened.

On the other hand, when the connecting rod 298 is set on the reduced side of the strip where the connecting rod 298 is fitted behind the detent hole 297a of the connecting arm 297, the implanted state shown in FIG. 2B is shown. As shown in the cross-sectional view, as the transplanting nail 31 of the right transplanting nail 31 is lowered, the locus of the transplanting nail 31 is swung to the left inside from the inherited position of the seedling from the right seedling removing nail 66, and As the transplanting nail 31 is lowered, the transplanting nail 3 is shifted outward to the right from the inherited position of the seedling from the left seedling removing nail 66.
When the trajectory 1 is swung, the space between the transplanted lines is narrowed. Therefore, the interval can be adjusted according to the type of vegetable to be transplanted and the method of growing the vegetable. Therefore, it is possible to provide a versatile vegetable transplanter by simultaneously transplanting two strips to greatly increase the efficiency of the operation and increasing the types of vegetables that can be handled.

The left and right elevating opening / closing mechanism 32 shown in FIG.
In the case of 32, both raising and lowering opening and closing mechanisms 32 are not symmetrical.
By setting the mounting of the rotary cases 240 and 241 and the transplant arm 230 in the same direction with respect to the planting transmission case 45 (and 45 ') of the 32, the elevating opening / closing mechanism 32.
Can have the same shape, the versatility can be increased, the manufacturing cost can be reduced, and the assembling directions of the rotary cases 240 and 241 and the transplant arm 230 can be unified to improve the assemblability.

In the structure in which the left and right elevating opening / closing mechanisms 32 have the same shape, the left and right elevating opening / closing mechanisms 3
Even in the configuration in which the left and right ridges 2 and 32 have a symmetrical shape, in the configuration where the length of the row to be transplanted with the left and right transplant claws 31 and 31 is narrowed, the ridge is formed on the outward path in which the body travels on the ridge as shown in the transplanted state shown in FIG. The first and second lines shown by solid lines are transplanted from one end in the width direction, and the third and fourth lines shown by two-dot chain lines are transplanted on the return path, and the four lines are transplanted to the appropriate positions on the ridge by reciprocating work. It is.

FIG. 8 shows another form of the simultaneous double-row transplantation.
As shown in the figure, the interval between the left and right elevating opening / closing mechanisms 32 is set to be approximately half the length of the seedling tray.
In accordance with the distance between the transplanting claws 31 and 2, the distance between the right and left seedling collecting claws 66 and 66 is reduced to half the width of the right and left seedling trays, and two vegetable seedlings are simultaneously seeded from a single seedling tray. It is designed to be pulled out by the hooks 66. In this case, the right half of the seedling tray is picked out by the right seedling pick 66, and the left half of the seedling tray is picked out by the left seeding nail 66, and is transferred to the transplanting nails 31. As described above, the rotation trajectory of the transplanting claws 31 is swung to the left or right from each seedling succession position and transplanted to the field with an appropriate interval between the streaks. Even if a vegetable transplanter for two-row transplantation is configured, a narrow seedling mounting table 34 'for single-row planting on which a single seedling tray is placed can be used, and a compact left and right width of the vegetable transplanter can be reduced. Configuration.

[0039]

As described above, the present invention has the following advantages. That is, as described in claim 1,
In a vegetable transplanter in which a transplanting claw that inherits and holds a seedling from a seedling picking claw is movably supported by an elevating opening / closing mechanism, and the transplanting claw is lowered to plant a seedling on a ridge, rotation of the transplanting claw is performed. The upper end of the trajectory is located below the seedling claw, and the lower end of the trajectory is swung in either the left or right direction with respect to the traveling direction of the machine from the position of the seedling claw. Without adjusting the position, it can be transplanted to the appropriate position on the ridge, the operation load on the operator can be reduced, and the transplant accuracy can be improved. In addition, even if the rotation trajectory of the transplant nail is swung to the left or right,
Since the seedling claw, the seedling mounting table, and the like are left as they are on the machine body as in the prior art, there is no significant design change and no increase in cost.

According to a second aspect of the present invention, the power for swinging the transplanting claw to the right or left is taken out from the elevating opening / closing mechanism, and the timing of raising and lowering the transplanting claw and the timing of swinging the claw right and left are synchronized. The transplanted nail at the time of the movement is positioned near the seedling picking nail to be the succession position of the seedling, and is lowered from this position. The position that is farthest to the left and right from the succession position of the seedling when it is rotated to the transplant position is set as the transplant position, and when the transplant claw is raised and returned to the highest position again, both driving is easy to return the transplant nail to the succession position of the seedling Can be tuned to.

According to a third aspect of the present invention, two sets of the elevating opening / closing mechanisms are arranged on the left and right sides with respect to the traveling direction. It can be transplanted simultaneously to the right and left position on the ridge with the transplant nail, so it can be transplanted to the ridge according to the type of vegetable seedling and the method of growing the vegetable, and the transplanting work to the ridge The time can be significantly reduced.

According to a fourth aspect of the present invention, the transplanting pawl supporting side of the elevating opening / closing mechanism is reciprocated at a fixed angle about a transmission shaft for transmitting the elevating driving to the elevating opening / closing mechanism. The transmission shaft for transmitting the driving force can be used as the center of rotation of the left and right reciprocating motion of the elevating opening / closing mechanism, and the number of components can be reduced. Further, as compared with a configuration in which the left-right reciprocating configuration is supported by using a link mechanism, it is possible to achieve a simple configuration by rotating around a fulcrum shaft, and to provide a transplantation mechanism with reduced cost.

According to a fifth aspect of the present invention, the center of rotation of the raising and lowering mechanism of the transplanting nail and the raising and lowering mechanism of the transplanting nail are arranged on the same line in the front-rear direction. When the seedling is rotated to the uppermost position when the seedling is mounted on the machine side, the seedling is transferred to the transfer position.Then, the transplanting nail is positioned on an extension line connecting the transmission shaft, which is a rotation fulcrum, and the seedling picking nail. This can be a guide during the assembling work, so that the assembling work can be facilitated and the assembling accuracy can be improved. In addition, the position of the transplant nail, which inherits the seedling from the seedling picking nail, is set as the center position where the lifting / lowering opening / closing mechanism can rotate right and left. It is easy to match the transplantation positions to both the left and right sides from the position, and the transplantation accuracy can be improved.

According to a sixth aspect of the present invention, two sets of the lifting and lowering mechanism are arranged on the left and right sides with respect to the traveling direction, and the lower end of the rotation trajectory of the transplanting nail supported by the left and right lifting and lowering mechanism when both transplanting nails are lowered. Since the amplitude of swinging to the left or right from the position of the seedling can be adjusted freely, the seedling is inherited from the left and right seedling nails provided at a fixed interval in the left and right direction, and transplanted by both left and right transplanting nails It can be transplanted to the right place on the ridge by widening or narrowing the interval between transplanting strips, and it can be adapted to the type of vegetable to be transplanted and the method of growing vegetables. Can be improved.

According to a seventh aspect of the present invention, two sets of the raising / lowering opening / closing mechanism and the transplanting nail are arranged on the left and right, and two sets of seedling picking nails for supplying seedlings to the transplanting nails of the two raising / lowering opening / closing mechanisms are provided. Because it was configured to extract seedlings from a single seedling tray on the mounting table,
As a vegetable transplanter for two-row transplantation, a narrow seedling platform for single-row planting on which a single seedling tray is placed can be used, and the vegetable transplanter should have a compact configuration with narrow left and right widths. Cut off.

[Brief description of the drawings]

FIG. 1 is an overall plan view of a vegetable transplanter for two-row planting.

FIG. 2 is a sectional view showing a transplanting device and a seedling nail for two-row planting, and a transplanting state.

FIG. 3 is a side cross-sectional view of a left-right reciprocating mechanism of an elevating opening / closing mechanism of a transplant nail.

FIG. 4 is a plan cross-sectional view of a left-right reciprocating mechanism of the elevating mechanism.

FIG. 5 is a front sectional view of a left-right reciprocating mechanism of the elevating mechanism.

FIG. 6 is a sectional view taken along line AA of FIG. 3, showing a configuration for converting rotation of a transmission shaft into reciprocating motion.

FIG. 7 is a cross-sectional view showing another embodiment of a double-row elevating opening / closing mechanism and a transplanted state.

FIG. 8 is a plan view showing a double-row elevating opening / closing mechanism and seedling picking nails to which seedlings are supplied from a single seedling mounting table.

[Explanation of symbols]

 31 Transplant Claw 32 Elevating Opening / Closing Mechanism 34 Seedling Stand 66 Seedling Claw (Seedling Member) 280 PTO Shaft 281 Base Frame (Supporting Component) 282 Rotation Transmission Supporting Point Shaft (Transmission Shaft)

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Shuichi Shimizu, Inventor Shuichi Shimizu 1-32, Chaya-cho, Kita-ku, Osaka, Japan Inside Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Toshiro Wada 1-32, Chaya-cho, Kita-ku, Osaka, Osaka No. Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Hiromitsu Hayata 1-32 Chaya-cho, Kita-ku, Osaka City, Osaka Prefecture F-term in the Yanmar Agricultural Machinery Co., Ltd. (Reference) BA01 BA02 BA03

Claims (7)

[Claims] 1. A vegetable transplanter in which a transplanting claw that inherits and holds a seedling from a seedling picking claw is movably supported by an elevating opening / closing mechanism, and the transplanting claw is lowered to plant a seedling on a ridge. The upper end of the rotation trajectory of the transplanted nail is below the seedling nail,
A transplanting device for a vegetable transplanting machine, characterized in that the lower end of the trajectory is swung in either the left or right direction with respect to the traveling direction of the machine body from the position of the seedling claw. 2. The vegetable according to claim 1, wherein a power for swinging the transplanting nail to the right or left is taken out from the elevating opening / closing mechanism, and the timing of raising and lowering the transplanting nail and swinging the transplanting nail to the left or right is synchronized. Transplant device of transplant machine. 3. The transplanting device for a vegetable transplanting machine according to claim 1, wherein two sets of the lifting / lowering opening / closing mechanisms are arranged on the left and right with respect to the traveling direction. 4. The lifting / lowering mechanism is reciprocated at a fixed angle on a transplanting nail supporting side about a transmission shaft for transmitting the lifting / lowering drive to the lifting / lowering mechanism. 4. The transplanting device of the vegetable transplanting machine according to 3. 5. A seedling picking nail that inherits a seedling into the transplanted nail,
The transplanting device for a vegetable transplanting machine according to claim 4, wherein the center of rotation of the raising and lowering mechanism of the transplanting nail is arranged on the same line in the front-rear direction. 6. The lifting and closing mechanism is arranged in two sets on the left and right with respect to the traveling direction, and the lower end of the rotation trajectory of the transplanting claw supported by the left and right lifting and lowering mechanism when the two transplanting claws are lowered is moved from the seedling claw position. 5. The transplanting apparatus for a vegetable transplanting machine according to claim 4, wherein the amplitude to be swung to one of the right and left sides is adjustable. 7. Two sets of raising and lowering mechanism and transplanting nails are arranged on the left and right, two sets of seedling picking nails for supplying seedlings to the transplanting nails of both raising and lowering mechanism are provided, and a single set on a seedling mounting table for single-row planting. 3. The transplanting device for a vegetable transplanter according to claim 1, wherein the seedlings are extracted from one seedling tray.