JPH09215413A - Transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transplanter, with which workability is improved by effectively preventing the inertia rotation of driving wheel and longitudinally moving a seedling tray to the position proper for a seedling ejection part, equipped with a forced one-pitch stopping means for forcedly stopping the driving wheel for each pitch. SOLUTION: This machine is provided with a driving wheel 33 and a driven wheel, which are arranged with a prescribed gap inbetween, as well as an endless band for conveying the seedling tray having plural seedling storage parts while being bridged between these driving wheel 33 and driven wheel, and a forced one-pitch stopping means 60 is formed for intermittently longitudinally feeding the seedling tray to the seedling ejection side by driving the driving wheel and for forcedly stopping the driving wheel 33 for each pitch while linking to one of the driving wheel 33 and a rotating member interlocked with the rotation of the driving wheel 33. In this case, it is desirable to operate this forced stopping means 60 while protruding a lock pin 61 into an engage holed 33a in the middle of rotational drive of the driving wheel 33.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter provided with a vertical feeding means for vertically feeding a seedling tray having a plurality of seedling accommodating portions to a seedling take-out side.

[0002]

2. Description of the Related Art The vertical feeding means in a transplanter is an actual flat blade.
As disclosed in Japanese Patent Publication No. 67713, a driving wheel and a driven wheel which are arranged at a predetermined interval, and a seedling tray which is hung between the driving wheel and the driven wheel and has a plurality of seedling accommodating portions are conveyed. An endless belt and an electric motor that drives the drive wheels and vertically feeds the seedling tray to the seedling extraction side every one pitch, and the seedling extraction unit that extracts seedlings from the seedling tray moves forward and backward to the lateral movement end. When returning, the drive wheels are driven by the electric motor to vertically feed the seedling tray every pitch.

[0003]

However, when the seedling tray is vertically fed by every one pitch by driving the electric motor as described above, and when the driving of the electric motor is stopped, the driving wheels rotate by inertia to cause seedling seedlings. There is a problem that the vertical feed position of the tray is displaced, and it becomes impossible to dispose the seedling accommodation portion of the seedling tray at an appropriate position with respect to the seedling taking-out portion. The present invention has been made in view of the above circumstances,
When the seedling tray is intermittently vertically fed by the drive of the drive wheel, the drive wheel is forcibly stopped to prevent the vertical feeding position of the seedling tray from being displaced.

[0004]

The transplanter according to the present invention comprises:
A driving wheel and a driven wheel which are arranged at a predetermined interval, and an endless belt which is hung between the driving wheel and the driven wheel and conveys a seedling tray having a plurality of seedling accommodating portions, and drives the driving wheel. In a transplanter capable of intermittently longitudinally feeding the seedling tray to the seedling take-out side, the drive wheels are forcibly forced at every pitch by being linked to one of the drive wheels and a rotating member that is interlocked with the rotation of the drive wheels. It is characterized in that it is provided with a one-pitch forced stop means for stopping.

According to the present invention, the endless belt circulates by driving the drive wheels, and the seedling tray can be intermittently vertically fed. In this case, the one-pitch forced stop means operates to forcibly stop the drive wheels at each pitch, so that inertial rotation of the drive wheels can be effectively prevented, and the seedling tray is vertically fed to the seedling take-out section at an appropriate position. can do.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be specifically described below with reference to the drawings showing the embodiments thereof. FIG. 1 is a schematic view of a transplanting device in a transplanting machine according to the present invention, FIG. 2 is a vertical cross-sectional view of a vertical transport section, FIG. 4 is a partially cutaway side view of the whole transplanting machine, and in FIG. The front frame 1A, the mission case 1B, and the rear frame 1C are integrally assembled, and the engine 2 is mounted on the upper side of the front frame 1A. And a pair of transmission cases 4 extending downward and rearward are provided on both side surfaces in the vehicle width direction of the mission case 1B so as to be vertically swingable, and are respectively provided on the free end sides thereof. The drive wheels 5 and 5 are supported, and the drive wheels 5 and 5 are moved from the engine 2 to the mission case 1B.
Also, the traveling machine body 1 is configured to be self-propelled by being driven by the rotational power transmitted through the transmission cases 4 and 4.

Further, on the front side of the drive wheel 5 at the lower part of the traveling machine body 1, an inter-plant detection switch for detecting the inter-planting plant of pot seedlings by the transplanting device 3 while rolling on the upper surface of the ridge A. A detection roller 6 (not shown) is supported, and each drive section of the transplantation device 3 is intermittently controlled by an inter-strain detection signal output from the detection roller 6.

Further, a compression wheel 7 running along the upper surface of the ridge is supported via a support rod 1D at the lower front portion of the front frame 1A, and the ridges A are provided on both sides of the compression wheel 7. A pair of guide wheels 8, 8 running along the side surface is provided.

Also, the rear frame 1C of the traveling machine body 1
The transplanting device 3 that is supported on the side is roughly divided into a vertical transport unit 30 that sequentially transports the seedling trays 10 in which a plurality of pot seedling storage units 10a are vertically and horizontally arranged, and a vertical transport unit 30.
A seedling taking-out portion 40 having a seedling taking-out nail 41 for taking out pot seedlings from the seedling tray 10 at a transporting end portion, and a transplanting portion 50 having a transplanting nail 53 for receiving the seedling from the seedling taking-out portion 40 and performing a planting operation. The transplant section 50 is supported on the mission case 1B side, and the seedling take-out section 40 and the vertical transfer section 30 are supported on the rear frame 1C side.

Reference numeral 9 in FIG. 4 denotes a steering handle mounted on the rear frame 1C facing rearward and upward.

Therefore, the vertical transfer unit 30 of the transplantation apparatus 3, that is, the vertical transfer apparatus in the transplanter constructed as described above is configured as follows. The vertical transport unit 30 is
As shown in FIG. 2, a frame-shaped support member 31 including a pair of side walls 31a and 31a opposed to each other at a predetermined interval and a connecting rod 31b connecting the both side walls 31a and 31a.
Is provided with a tray receiving portion 32 for supporting and guiding the seedling tray 10, and side walls 31a, 31a of the supporting member 31.
A drive shaft 34 having drive wheels 33, 33 formed of a pair of opposed sprockets is rotatably supported between the front portions of the driven wheels, and a driven wheel formed of a pair of opposed sprockets between the rear portions. A driven shaft 36 having 35, 35 is rotatably supported by the driven shaft 36, and each of the drive wheels 33, 33 and the driven wheel 3 is supported.
Endless belts 37, which are chains 5 and 35,
On the other hand, the endless belts 37, 37 are provided with a large number of forcible conveying members 38 which are hooked to the pot seedling accommodation portion 10a of the seedling tray 10 and are forcibly conveyed on both endless belts 37, 37 at predetermined pitch intervals. The transport member 38 is configured to forcibly feed the seedling tray 10 vertically.

The forced transport member 38 shown in FIG. 3 has inner and outer link plates 37a and 37b of the endless belts 37 and 37.
And a roller 37c are connected to each other by using connecting shafts having connecting portions 38a, 38a at both ends thereof, and the forced transport member 38 is arranged in the longitudinal direction of the seedling tray 10 in a pot seedling accommodating portion 10.
The shaft diameter that can be inserted into the recessed groove 10b between a and 10a is formed so as to be hooked on the side wall of the pot seedling accommodation portion 10a, and the connecting portions 38 at both ends of the forced transport member 38 are formed.
By using a and 38a, the connecting pins of the endless belts 37 and 37 can also be used, so that the structure can be simplified and the attachment thereof can be easily performed.

As the forced transport member 38, a connecting shaft that also serves as a connecting pin is used as described above, and, for example, the link plates 37a of the both endless belts 37, 37 are used.
Alternatively, it is needless to say that a shaft rod or the like may be integrally provided between the facing surfaces of 37b by an appropriate fixing means.

A motor M is mainly used as a drive means for the drive shaft 34 having the drive wheels 33, 33, and when the support member 31 is moved forward or backward to any of the lateral feed end positions in the left-right direction, Limit switch L1 for detecting
The limit switch L1 or L2 is detected by L2.
The motor M is intermittently driven by a detection signal from the motor M to vertically feed the seedling tray 10 by one pitch in the vertical direction, and further, the motor M of the drive wheels 33, 33.
One-pitch forced stop means 6 for forcibly stopping rotation by
0 is set.

As the forced stop means 60, as shown in FIG. 1 and FIG. 2, a portion on the concentric circles of the drive wheels 33, 33, which is equally divided into one pitch interval according to one pitch interval of the seedling tray 10. While the engaging holes 33a are respectively provided in the locking frame 62, the rear frame 1C has lock pins 61, 61 which can freely move in and out of the engaging holes 33a, 33a at positions lateral to the driving wheels 33, 33. And the lock pin 61 is inserted into the engaging hole 33a while the drive wheels 33, 33 are being driven and rotated by the motor M, so that the seedling tray 10 is vertically fed by one pitch. At the position, the rotation of the drive wheels 33, 33 is forcibly stopped.

In this case, the lock device 62 connects the lock pin 61 to the drive system of the claw movement mechanism 43, which will be described later, through the interlocking mechanism 63, and the lock pin 61 is While moving from the unlocked position to the locked position in conjunction with the seedling harvesting end operation, while moving to move from the locked position to the unlocked position in conjunction with the seedling harvesting operation start operation, the rear frame 1C, A detection switch S which is turned on when the lock pin 61 is unlocked, and a limit switch L1 which is turned on when the support member 31 is moved forward or backward to any of the lateral feed end positions in the left-right direction to detect this. L2 is provided, and the motor M is driven only when the detection switch S and either one of the limit switches L1 or L2 are turned on. 4 rotates the drive wheels 33, 33 via a longitudinally feeding the seedling tray 10, and the driving wheel 3
At the timing when the seedling tray 10 is vertically fed by about one pitch by the rotation of 3, 33, the lock pin 61 is pushed into the engaging hole 33a of the drive wheel 33 from the unlocked position to detect the detection switch S. Is turned off to stop the motor M, and at the same time, the rotation of the drive wheel 33 is forcibly stopped.

With this configuration, inertial rotation of the drive wheels 33, 33 with respect to the stop of the motor M is eliminated,
The shift of the stop position of the seedling tray 10 due to the inertia rotation can be prevented, and thereby the pot seedling container 10a of the seedling tray 10 can be forcibly positioned at an appropriate position corresponding to the takeout position of the seedling taking claw 41. You can do it.

In order to apply the forced stop means 60 even when a plurality of seedling trays 10 are selected and used, as shown in FIG. 2, the engaging holes of the drive wheels 33, 33 are provided. 33a are provided on the concentric circles having a diameter different from that of the concentric circles, and engaging holes 33a 'are equidistantly divided according to one pitch interval of another seedling tray 10, respectively, while the lock pin is provided on the lock device 62. 61 is the engaging hole 33
A rush position adjusting means (not shown) for the lock pin may be provided so that either a or 33a 'can be selectively rushed.

Further, the vertical conveying section 30 having the supporting member 31, that is, the seedling tray 10 is constructed so as to be intermittently laterally moved laterally at every 1 pitch in the lateral direction of the pot seedling accommodating section 10a by the lateral feeding means. Has been done.

As shown in FIG. 1, the support member 31 has a plate-shaped tray receiving portion for guiding and supporting the lower surface of the seedling tray 10 between the driving wheel 33 and the driven wheel 35 on the transport side of the seedling tray 10. A tray for picking up and guiding the empty seedling tray 10 that has been transplanted to the collection side of the seedling tray 10 in the support member 31 via the receivers 71, 72 supported below the side walls 31a, 31a while mounting 32. A recovery unit 39 is provided.

The tray receiving surface 32a of the tray receiving portion 32
Is inclined at a predetermined angle α such that the distance between the feed start end portion 32b and the drive side portion 37a of the endless belt 37 is smaller than the distance between the feed end portion 32c and the drive side portion 37a, The seedling tray 10 is designed to enter the endless belt 37 at a predetermined angle α on the side of the feeding start end portion 32b, and the tray collecting surface 39 of the tray collecting portion 39.
a is inclined at a predetermined angle β so that the distance between the recovery end portion 39c and the driven side portion 37b of the endless belt 37 is larger than the distance between the recovery start end portion 39b and the driven side portion 37b. However, the empty seedling tray 10 has the driven side portion 3
It is configured to separate downward from the recovery start end portion 39b at a predetermined angle β with respect to 7b in the recovery direction.

In the embodiment shown in the figure, a large number of wire rods are used as the tray collecting section 39, and each of these wire rods is placed under the side walls 31a, 31a via the receiving bodies 71, 72 to extend the width of the supporting member 30. It is formed so as to be supported in parallel at predetermined intervals in the direction.

Further, in FIG. 1, reference numeral 73 is an auxiliary tray receiving portion attached to the outer side of the driven wheel 35 of the support member 31.

On the other hand, the seedling take-out section 40 has a seedling take-out nail 41.
And a seedling holding mechanism 42 for picking up and holding pot seedlings from the pot seedling accommodating portion 10a of the seedling tray 10 by the seedling taking-out claws 41 at the transporting end portion of the vertical feeding unit 30, and this holding mechanism 42 in the seedling taking-out process. Reciprocate linearly,
In addition, the claw operation mechanism 4 that swings downward in the seedling discharging process
3, the potting seedlings are taken out from the seedling tray 10 by the seedling taking-out nail 41 by the interlocking operation of the mechanisms 42 and 43, and the seedling taking-out nail 4 is provided between the taking-out step and the discharging step.
1, the pot seedlings are held, and the seedlings are ejected from the seedling take-out nail 41 at the seedling ejecting position avoiding the vertical conveying section 30 and supplied to the transplanting nails 53 of the transplanting section 50 waiting below.

Further, the transplanting section 50 is a planted transmission case 51 attached to the rear side of the mission case 1B.
And an openable / closable transplanting claw 53 which is supported on the planting transmission case 51 via a planting arm 52 interlocking with its internal mechanism so as to be plantable in the vertical direction.
The movement of 2 causes the transplanting claw 53 to be planted in a predetermined vertical movement locus over a range from the receiving position of the pot seedling discharged from the seedling taking-out claw 41 to the position of transplanting to the ridge A, and the seedling taking-out claw 41 is moved. When releasing the pot seedlings, the pot seedlings are received at the ascending position where the transplanted nail 53 is closed, that is, at the receiving position, and after the pot seedlings are received, the transplanted nails 5 are released.
3 is moved downward to the ridge A side, and the transplanting claw 53 is opened at this downward position so that the pot seedling held inside is transplanted to the ridge A.

Next, the operation of the transplanter according to the present invention will be described. When the support member 31 is moved forward and backward by the lateral feed means to either the lateral feed end position in the left or right direction, the seedling tray 10 supported by the tray receiving portion 32 of the support member 31 is fed vertically by one pitch. In this case, the drive wheels 33, 3 are driven by the intermittent drive of the motor M via the drive shaft 34.
3 is driven to rotate, and as the endless belts 37, 37 are moved by the drive rotation of the drive wheels 33, 33, the forced transfer member 38 that is caught on the side wall of the pot seedling accommodating portion 10a of the seedling tray 10.
Move integrally, and the seedling tray 1 is moved by the forced transfer member 38.
Since 0 can be forcibly transported, the seedling tray 10 can be reliably fed vertically without slippage between the forced transport member 38 and the seedling tray 10. .

Further, in the case of this vertical feed, when the support member 31 is moved forward or backward in either of the horizontal feed end positions, the limit switch L1 or L2 is turned on, and the motor M is driven. The drive wheels 33, 33 are driven and rotated to vertically feed the seedling tray 10 as described above, and further, at the timing when the seedling tray 10 is vertically fed by about one pitch by the rotation of the drive wheels 33, 33. The lock pin 61 moves from the unlocked position to the engagement hole 33 of the drive wheel 33.
It rushes into a and forcibly stops the rotation of the drive wheels 33, 33. Then, the engagement hole 33 of the lock pin 61
The detection switch S is turned off and the driving of the motor M is stopped due to the entry into a. As a result, the inertial rotation of the drive wheels 33, 33 with respect to the stop of the motor M can be bulged, and the stop position shift of the seedling tray 10 due to the inertial rotation can be prevented. It is possible to forcibly position it at an appropriate position corresponding to the take-out position of the take-out claw 41.

Further, with respect to the movement locus of the drive side portion 37a, the feed start end portion 32b of the tray receiving surface 32a of the tray receiving portion 32 and the drive side portion 3 of the endless belt 37.
A predetermined angle α so that the distance between the feeding end portion 32c and the driving side portion 37a is smaller than the distance between the feeding end portion 32c and the driving side portion 37a.
Therefore, the forced transport member 38 is inclined toward the seedling tray 10 from the lower side to the upper side of the seedling tray 10 from the bottom of the seedling tray 10 toward the feeding end portion 32c side from the feeding start end portion 32b side. Because it moves
The forced transfer member 38 does not push the bottom portion of the seedling tray 10 outward to separate the seedling tray 10 from the tray receiving portion 32, and the forced transfer member 38 is disposed between the pot seedling storage portions 10 a and 10 a of the seedling tray 10. It is possible to smoothly enter the groove 10b.

When the transplanted empty seedling tray 10 is moved to the tray collecting section 39, the tray collecting surface 39a of the tray collecting section 39 has a collecting end portion 39c and a driven side portion 37b of the endless belt 37. When the seedling tray 10 moves in the collecting direction, since the interval between the seedling tray 10 and the driven side portion 37b is inclined at a predetermined angle β so as to be larger than the distance between the collecting start end portion 39b and the driven side portion 37b. , The seedling tray 10 is detached from the forced transport member 38 by its own weight on the side of the collection start end portion 39b, and as a result,
The seedling tray 10 can be smoothly detached from the forced transport member 38, and the empty seedling tray 10 can be removed early.

In the embodiment shown in FIG. 4, the pot is formed by the transplanting claw 53 on the front side of the transplanting claw 53 and reciprocates in the vertical direction in conjunction with the internal mechanism of the planted transmission case 51. A multi-cutter 54 that moves down immediately before the transplanting of seedlings to form a transplant hole in the multi-film F laid on the ridge A is provided, and the transplant nail 53 is used to transplant the rear side of the transplant nail 53. A culture soil ring 55 is provided for cultivating soil in the pot seedlings.

[0031]

According to the vertical carrying device of the present invention, when the drive wheels are driven and the seedling tray is intermittently vertically fed, the drive wheels are forcibly stopped at every pitch by the one-pitch forced stop means. Therefore, the inertial rotation of the drive wheel can be effectively prevented, and the seedling tray can be vertically fed to an appropriate position with respect to the seedling take-out portion.

[Brief description of the drawings]

FIG. 1 is a schematic view of a transplanting device in a transplanting machine according to the present invention.

FIG. 2 is a vertical cross-sectional view of a vertical transport unit of the transplanter according to the present invention.

FIG. 3 is an enlarged cross-sectional view of a forced transfer member portion of the transplanter according to the present invention.

FIG. 4 is a partially cutaway side view of the entire transplanter according to the present invention.

[Explanation of symbols]

 33 drive wheel 35 driven wheel 37 endless belt 60 forced stop means 62 locking device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hideo Nakajima 1-32, Chayacho, Kita-ku, Osaka-shi, Osaka Yanma Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A driving wheel and a driven wheel which are arranged at a predetermined interval, and an endless belt which is hung between the driving wheel and the driven wheel and conveys a seedling tray having a plurality of seedling accommodating portions,
In a transplanter capable of intermittently longitudinally feeding the seedling tray to the seedling take-out side by driving the drive wheel, the drive wheel is linked with one of the drive wheel and a rotary member that is interlocked with the rotation of the drive wheel. A transplanter characterized by being provided with a one-pitch forcible stop means for forcibly stopping every one pitch.