JPH0371841B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a transplanting device such as a rice transplanter or a vegetable transplanter.

(Prior art) Conventional transplant devices are disclosed in Japanese Patent Publication No. 17806/1983;
JP-A-60-66907 or JP-A-61-
As disclosed in Publication No. 5712, a transplant tool is attached to the side of the distal end of a single rotating case, and the transplant nail of the transplant tool draws a long loop-shaped transplant trajectory in the vertical direction when viewed from the side. The one I composed was hot.

(Problems to be Solved by the Invention) In conventional transplant devices, the transplant locus drawn by the transplant nail of the transplant device is short in the front-back direction and cannot be lengthened in the vertical direction. As the front and rear sides of the transplanter become longer, the length of the transplanter becomes longer, making it impossible to construct a compact transplanter. Furthermore, when the transplant trajectory becomes longer in the front and back, the transplanted nails move back and forth under the soil surface during transplanting, which affects the transplanting posture of the seedling, resulting in a disadvantage that the transplanting posture becomes poor.

(Technical means for solving the problems) In order to solve the above problems, the present invention provides the following:
The configuration was as follows.

That is, the second rotating case 7, which rotates in the opposite direction to the first rotating case 3, is provided on the outer surface of the rotating tip side of the first rotating case 3, which is rotated by transmission as appropriate. When the one-rotation case 3 is oriented vertically, the first
It is located on the same side as the rotating case 3, and when the first rotating case 3 is oriented in the front-back direction, it is also oriented in the front-back direction and located on the opposite side. A transplanting device including a seedling transplanting tool 10 on the side.

(Operations and Effects of the Invention) According to the present invention, the rotation of the second rotation case 7 is reversed with respect to the rotation of the first rotation case 3, and when viewed from the side, the two cases 3 and 7 are rotated in the vertical direction.
are connected and extend vertically, and in the front-rear direction, the cases 3 and 7 overlap each other and become shorter as a whole, forming a loop-shaped transplant drawn by the transplant claw 8 of the transplant tool 10 attached to the second rotating case. The locus P can be made shorter in the front and back and considerably longer in the top and bottom. Therefore, even from the seedling supply table 23 disposed at a considerably high position, the seedlings can be reliably divided and transplanted in a good transplanting posture without being pulled back and forth with respect to the lower soil surface.

(Example) A vegetable transplanter which is an example of the present invention will be described in detail based on the drawings.

Reference numeral 11 designates a transmission case, which has wheel transmission cases 12, 12 facing downward on both left and right sides, and a transmission case 13 facing rearward and upward in the middle part from the left side.

14 is an engine, and the transmission case 11
is directly connected to the front side of the

15, 15 indicates wheels.

Reference numeral 1 designates a transplanted transmission case, the base of which is fixed to the outer side of the distal end of the transmission case 13, and the distal end thereof extends rearward.

Reference numeral 17 denotes a handle support rod, the base of which is attached to the right side of the mission case 11, and the tip thereof extends rearward and upward.

A reinforcing rod 18 connects the transplanted transmission case 1 and the handle support rod 17 to each other.

Reference numeral 19 denotes a lead cam shaft, the base end of which is inserted and supported within the distal end of the transmission case 13 to receive transmission rotation, and the distal end thereof is attached via a metal fitting 21 to a support rod 20 that is integrally attached to the reinforcing rod 18. It is rotatably supported by a metal 22.

23 is a seedling supply stand, with left and right standing frames 23a, 23
It has a structure in which a seedling transfer belt 24 is provided, which is wound and stretched in the front and rear direction around the bottom plate space of the framework made of the bottom plate 23a and the front and rear bottom plates 23b and 23c.

25, 25 are belt winding rolls.

The rear belt winding roll 25 is driven via a ratchet mechanism 26, and drive levers 27 are provided on both the left and right sides.

A rotor 28 is fixedly attached to shafts 29, 29 which are integrally provided with the lead cam shaft 19 and protrude outward from the left and right.

30 is a lead metal, which is connected to the lead cam shaft 19;
A lead metal 30 is fitted to the rear bottom plate 23b of the seedling supply table 23.

As the lead cam shaft 19 rotates, the seedling supply table 23 is reciprocated horizontally to the left and right via the lead metal 30, and when it reaches the lateral end, the drive lever 27 engages with the rotor 28 and rotates, causing the ratchet mechanism 26 to move. The belt winding roll 25 is rotated through the belt winding roll 25.

Reference numeral 31 denotes a seedling receiving frame, which is attached to the transplant transmission case 1 and the handle support rod 17 via metal fittings 32 on the rear end side of the seedling supply table 23, and has a seedling outlet 16 provided in the left and right center portions. ing.

33 and 34 indicate support rails of the seedling supply stand 23.

35 is a loop handle whose base is fixed to the rear end of the transplanted transmission case 16 and the handle support rod 17.

Reference numeral 36 denotes a drive shaft, which is rotatably mounted on a bearing inside the distal end side of the transplanted transmission case 1. This drive shaft 36 has a sprocket 37, a gear 38, and a drive cam that receive power from the engine 14 through a chain. 39 is provided so as to be rotated integrally with the shaft.

Reference numeral 2 denotes an outer shaft, which is rotatably supported by the transplanted transmission case 1, and a gear 40 having the same number of teeth that meshes with the gear 38 is wedged on the outer shaft 2.

Reference numeral 4 denotes an inner cylindrical shaft inserted into the mantle shaft 2, and in this example, it is rotatably supported by the inner wall of one side of the transplanted power transmission case 1, and the other end is outside of the transplanted power transmission case 1 and extends from the mantle shaft 2. It is also set up so that it stands out.

The inner cylinder shaft 4 is provided with the drive cam 39.
A driven cam 41 is wedged in contact with the cam 41, which temporarily rotates and then returns to its original position. In addition, 42 is the cam 41
It is a spring for restoring. Symbol B is a trajectory variation mechanism, which is a cam mechanism in the illustrated example, and is composed of the driving cam 39, the driven cam 41, a spring 42, etc.
This is a mechanism that primarily rotates the inner cylinder shaft 4. Reference numeral 65 denotes a fixed shaft, which is inserted into the inner cylindrical shaft 4, whose base is formed into a square shaft, and which is inserted into a square hole drilled in a boss provided in the transplanted transmission case 1 so as to be integrated with the case. It is configured so that 66 is a sealing cap.

Reference numeral 3 designates a first rotating case, which is fixed to the mantle shaft 2 via a bracket 43 with bolts 44.

A sun gear 45 is fixed to the fixed shaft 4 and is located inside the first rotating case 3.

Reference numeral 67 denotes a swinging gear, which is integrally provided at the tip of the inner cylindrical shaft 4.

Counter gears 46 and 47 are rotatably attached to the counter shaft 68 in the first rotating case 3, and the gear 46 is integrally formed with large and small double gears 46a and 46b, and is rotated at double speed. It is configured to

Reference numeral 5 denotes a mantle shaft, which is rotatably supported by the first rotating case 3, and a gear 49 that meshes with the gear 46 is wedged on the mantle shaft 5.

Reference numeral 6 denotes a shaft inserted into the mantle shaft 5, and a gear 4 that meshes with the counter gear 47 is attached to this shaft.
8 is fixed, and in this example, it is rotatably supported on one side inner wall of the first rotating case 3, and the other end is provided outside the first rotating case 3 so as to protrude beyond the mantle shaft 5.

Reference numeral 7 denotes a second rotating case, which is fixed to the mantle shaft 5 with bolts 51 via a bracket 50.

52 is a gear wedged on the shaft 6, and is located inside the second rotating case 7.

A counter gear 53 meshes with the gear 52. 54 indicates a counter axis.

Reference numeral 55 denotes a transplanter attachment shaft, which is attached to the second rotating case 7.
is rotatably supported by the case 7, and its tip end is
It is projected outward.

A gear 56 is wedged on the graft attachment shaft 55 and meshes with the gear 53.

Reference numeral 10 denotes a transplant device, in which a transplant nail 8 consisting of a fixed transplant nail 8a and a movable transplant nail 8b is attached to a hollow box-shaped transplant device main body, and the transplant movable nail 8b is attached to the inside of the transplant device main body. An operating mechanism 9 is provided, so that the operation of clamping the seedling A and, conversely, releasing the clamped seedling A is performed.

The main body 10a of the transplant device 10 is fixed to the transplant device mounting shaft 55 via a bracket 57 and a bolt 58.

The transplant movable claw 8b is connected to the transplant device main body 10a.
The transplant fixing claw 8a is attached to a vertical shaft 59 rotatably attached to the transplant device main body 10a with a bolt 60, and the left and right spacing can be expanded and contracted. .

Reference numeral 61 denotes an opening/closing cam, which is provided integrally with the mantle shaft 62 that covers the transplant device attachment shaft 55.
2 is attached via a pawl 72 to an engaging element 71 which is provided with a bracket 69 and a dog pawl 70 integral with the bracket 69 on the second rotating case 7 so as to be freely rotatable by a certain angle. Reference numeral 73 denotes a one-way clutch, which is provided between the transplant tool attachment shaft 55 and the mantle 61, and is connected to the claws 70 and 72.
The one-way clutch 73 drives the play between the mantle shaft 62 from the mantle shaft 62 side, and the mantle shaft 62 is not returned to its original position until the pawls 70 and 72 are engaged with each other by rotation of the second rotating case 7. It is composed of

A cam floor 63 is fixed to the shaft 59 and is brought into pressure contact with the opening/closing cam 61 by a spring 64 so that the shaft 59 rotates as the cam 61 rotates.

Then, the rotation speed of the second rotation case 7 is set to be exactly twice the rotation speed of the first rotation case 3, and when both rotation cases 3 and 7 are fully extended in a straight line, both rotation cases Both rotating cases 3 and 7 are configured to face substantially in the vertical direction, and to face in the front-back direction when both rotating cases 3 and 7 are not extended linearly but bent.

Further, the trajectory P drawn by the tip of the transplanted nail 8 of the transplantation device 10 is configured in a closed loop shape that is narrow in the front-rear direction and long in the vertical direction. Note that the longitudinal distance of the trajectory P varies depending on the length of the second rotating case 7 relative to the length of the first rotating case 3 (more precisely, the distance between the center of the input shaft and the center of the output shaft). , if both lengths are the same, a linear trajectory will be drawn up and down.

Further, the operation of the movable transplant claw 8b is such that when the transplant claw 8 intervenes from above into the seedling take-out port 16 of the seedling receiving frame 31 and takes out the seedling, a spring 64 moves toward the fixed transplant claw 8a.
The shape of the cam 61 is configured such that it rotates against the ground, then reaches the lower end in that state, and opens when it plunges into the soil surface.

Furthermore, the entire transplantation device 10 is primarily operated by the drive cam 39 and the driven cam 41 by the transmission mechanisms in the first and second rotation cases 3, 7, and is deformed along the transplantation trajectory P. However, if the position of this deformation is set so that the transplant tool 10 is rotated backward at the time when the transplant claw 8 takes out the seedling from the seedling take-out port 16, the seedling can be reliably separated and taken out.

Reference numeral 74 denotes a hole digging device for digging a hole at the transplantation position, which includes a rotatable arm 76 attached to the mission case 11 via a bracket 75, and a cylindrical body fixed to a bracket 77 fixed to the reinforcing rod 18. The upper end of a shaft 79, which is inserted through the shaft 78 and faces rearward and downward, is connected to the arm 76 by a long hole and a pin, and the shaft 79 is pushed upward by a spring 80. A hole digging tool 81 is attached to the lower end of the shaft 79, and the arm 76 is intermittently pushed down by a rotor 82 fixed to the lead cam shaft 19. Reference numeral 83 denotes a drilling device for making a circular hole in a multi-film to cover the surface of the ridge. Claw bodies 88, 88, .
A link mechanism 91 that is intermittently rotated by a rotor 90 fixed to the lead cam shaft 19 moves the movable cylinder 89 up and down, and intermittently rotates the claw body 88,
88... descends and these claw bodies continue to wither,
After that, it is configured to move upward and spread the claw body.

Next, to explain the operation of the above example, after the wheels 15, 15 of the transplanter are set so as to straddle the transplanting ridges in the field, pine-shaped seedlings with soil or pot containers are placed on the seedling supply table 23 vertically or horizontally. After placing and storing pot-shaped seedlings A grown in paper seedlings placed in series at predetermined intervals, the engine 14 transmits and rotates each rotating part, and the aircraft is propelled by the rotation of the wheels 15, 15. be done.

The seedling supply table 23 is reciprocated in the left-right direction via the lead metal 30 by rotation of the lead cam shaft 19. Therefore, the seedling A located on the rear end side is moved left and right while being received by the seedling receiving frame 31, and the seedling is fed out to the seedling outlet 16.

On the other hand, when the drive shaft 36 is transmitted and rotated from the engine side via the chain and sprocket 37, the mantle shaft 2 is transmitted and rotated by the gears 38 and 40, and the first rotation fixed to the mantle shaft 2 is rotated. Case 3 is rotated. Further, the inner cylinder shaft 4 is rotated only once while the first rotating case 3 is rotated once by the drive cam 39 and the driven cam 41.

Then, the gear 45 fixed to the fixed shaft 65 is used as a sun gear, and the counter gears 46a, 46
b is subjected to planetary rotation, and furthermore, a gear 49 meshing with this counter gear 46b is transmitted and rotated.

On the other hand, the counter gear 47 is subjected to planetary rotation using the oscillating gear 67 integrated with the inner cylinder shaft 4 as a sun gear, and the gear 48 meshing with this is further rotated.

Therefore, the second rotating case 7 is the gear 49,
It is rotated by transmission via the mantle shaft 5 and the bracket 50.

Further, the gear 52 in the second rotating case 7 is rotated at double speed from the gear 48 via the shaft 6 in the opposite direction to the rotating direction of the rotating case 7.

The main body 10a of the implant 10 is connected to an implant attachment shaft 55 driven by a counter gear 53 which is rotated around a gear 52 wedged on the shaft 6 as a sun gear, and a gear 56 which is transmitted by the gear 53. The tip of the transplanted claw 8 moves in a closed-loop transplantation trajectory P.

However, the transplant device attachment shaft 55 is primarily rotated by a cam mechanism B composed of the drive cam 39, the driven cam 41, etc., and the trajectory P of the transplant nail 8 is changed in the figure.
Transform it like P′.

The transplant claw 8, which draws such a transplant trajectory P, intervenes in the seedling take-out port 16 of the seedling receiving frame 31 from above, and when the seedling is caught between the fixed transplant claw 8a and the movable transplant claw 8b, the second rotation occurs. The transplant movable claw 8b is operated by the cam 61 integrated with the mantle shaft 62 and the cam floor 63, which are provided on the case 7 via the bracket 69, the engager 71, and the claws 70, 72, and the seedling A is firmly held. When the seedling A is moved slightly downward in this state, the drive cam 39 and the driven cam 41 work to pull the seedling A rearward, thereby ensuring that the seedling A is divided and taken out.

At this time, since the swinging motion of the transplant device 10 is performed primarily, it precedes the rotation of the cam 61 in the portion between the meshing play between the dog claws 70 and 71. Therefore, after this swinging motion, the cam 61 does not rotate until the pawl 70 catches up and engages with the pawl 71, and the cam floor 6
Seedling A held by 3 under cam action in the opposite direction
The side effect of trying to release is the one-way clutch 7
This can be reliably prevented by the action in step 3.

That is, since the manway clutch 73 is located between the shaft 55 and the cam 61, when the transplant device 10 is swung on the shaft 55, the cam 61 is rotated together with this, and then the transplant device 10 is stopped. In this state, until the claws 70 and 72 are engaged, there will be no reverse movement against the cam floor 63, and the seedling A held between them will not be released as described above.

In this way, the transplanted nails 8a and 8 of the transplantation device 10 are
It descends while holding the seedling A between the two parts. A link mechanism 9 operated by a rotor 90
The multi-film covering the surface of the ridge is grasped and torn by the perforating device 83 operated at step 1, and then the perforating tool 79 fixed to the shaft 70, which is intermittently pushed down by the rotor 82, is used to cut the ridge. The transplant claw 8 is inserted into a transplant hole made in the soil surface, and the lower transplant claw 8b is opened outward by the action of the cam 61, and the seedling A is released and transplanted.

In the illustrated example, the swinging operation of the transplanting tool 10 is performed by the seedling A.
This was done only when dividing the cam mechanism B.
The shape of the drive cam 39 may be changed so that the driven cam 41 is rotated when the transplanted claw 8 enters the soil surface.

Moreover, the seedling A transplanted to the upper surface of the ridge will take root better if the root part of the planted seedling A is pressed. However, it is very difficult to press the base of the seedling A accurately. However, as shown in FIGS. 7 to 9, the position of the planted seedling A is detected by a position detector 92 such as an ultrasonic sensor or a photoelectric sensor.
It is sufficient that the base pressure ring 93 is automatically operated by an operating mechanism such as a hydraulic device 94 based on a signal from this detector. That is, as shown in the figure, the ultrasonic sensor 9 is placed equidistantly away from the transplanted seedling A.
By detecting signals from both sensors 2a and 92b and comparing the signals from both sensors using a comparator, it is detected how far the seedling A is shifted to the left or right. A switching valve (not shown) is switched at a time based on the magnitude of the signal, so that the root suppressing ring 93 is always located at the rear side on both sides of the root of the seedling A via the link 95. .

[Brief explanation of drawings]

The figures show a vegetable transplanter which is an embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a plan view, Figs. 3, 4 and 5 are sectional views, and Figs. 6
The figure is a slope view of the main part, Figure 7 is a side view of the main part of another example,
FIG. 8 is a plan view thereof, and FIG. 9 is a rear view thereof. Symbols in the figure: 1 is a transplanted transmission case, 3 is a first rotating case, 7 is a second rotating case, 8 is a transplanted claw, 10
indicates a transplanting tool, A indicates a seedling, B indicates a trajectory variation mechanism, and P indicates a transplant trajectory.

Claims (1)

[Scope of Claims] 1. A second rotating case 7, which rotates in the opposite direction to the first rotating case 3, is provided on the outer surface of the rotating tip side of the first rotating case 3, which is rotated as appropriate.
When the first rotating case 3 is oriented in the vertical direction, the rotating case 7 is also oriented in the vertical direction and is located on the same side as the first rotating case 3, and when the first rotating case 3 is oriented in the front-back direction, it is located on the same side as the first rotating case 3. A transplanting device configured to be positioned on the opposite side in the front-rear direction, and provided with a seedling transplanter 10 on the outer surface of the distal end side of the second rotating case 7. 2 The transplant device 10 has a transplanted nail 8 having a structure equipped with an operating mechanism such as opening and closing, and the transplanted nail 8
draws a long loop-shaped transplant locus P in the vertical direction,
2. The transplantation device according to claim 1, further comprising a trajectory variation mechanism B provided in the transmission mechanism for rapidly changing the trajectory forward or backward in the middle of the operation of the transplantation trajectory P. 3 When the trajectory variation mechanism B is working so that the trajectory varies, the operation of the seedling operating mechanism is prevented so that the operating mechanism of the transplanting tool 10 is not affected by this trajectory variation mechanism. The implantation device according to claims 1 and 2, which is provided with a mechanism C. 4. The operating position of the trajectory variation mechanism is set at the time when the transplanting tool 10 divides and takes out the seedling A from the seedling supply table 23 side or when the seedling A is planted on the soil surface. The implantation device according to item 3.