JPS6342612A - Transplanter - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to transplanting machines such as rice transplanters, vegetable transplanters, and rush transplanters.

(Prior Art) Conventional transplanters are provided with an elastic plate made of rubber or the like on the lower side of the transplanter in order to prevent the seedlings from falling from the seedling outlet.

(Problems to be Solved by the Invention) However, with the elastic plates of conventional transplanters, the elasticity of the elastic plate gradually decreases during transplanting, making it impossible to properly support the seedlings, resulting in poor planting posture of the seedlings. Furthermore, since the elastic plate is configured to retreat when the transplanted nail comes into contact with the transplanted nail, there is also the problem that the posture of the seedling taken out with the transplanted nail is disturbed. Ta.

(Technical Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a seedling receiving frame 31 provided opposite to one end of a seedling supply table 23 that is supported by a machine body and moves back and forth. In a transplanter equipped with a transplanting tool 10 for taking out seedlings from a seedling take-out port 16 and planting them in a field, a seedling support 100, 100' for supporting the seedlings is provided at the seedling take-out port 116.
The seedling support 100, 100' is configured to open when the transplant claw 8 of the transplant tool 10 passes through the seedling take-out port 16.

(Operations and Effects of the Invention) According to the present invention, the seedlings at the seedling outlet 16 are properly supported by the seedling supports 100 and 100', and the transplanting claws 8 of the transplanting tool 10 are connected to the seedling outlet 16. Seedling support 10 until just before passing
0.100' supports the seedling and retreats when the transplant claw 8 passes the seedling take-out hole 16, so the seedling can be taken out properly by the transplant claw 8 and the seedling can be taken out in a good posture.

(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 center shaft transmission cases 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.

Reference numeral 14 denotes an engine, which is directly connected to the front side of the transmission case 11.

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 transmission 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, which is inserted into the proximal end or the distal end of the transmission case 13 to receive transmission rotation, and whose distal end is connected to a support rod 20 integrally attached to the reinforcing rod 18 via a metal fitting 21. It is rotatably supported by an attached metal 22.

Reference numeral 23 denotes a seedling supply table, and a seedling transfer belt 24 is stretched in the front-rear direction around the hollow space of the framework formed by the left and right standing frames 23a and 23a and the front and rear bottom plates 23b and 23c.
It has a structure with

25.25 is a bell 1-winding roll.

Note that the rear belt winding roll 25 is connected to the ratchet mechanism 2.
6, and drive levers 27 are provided on both the left and right sides.

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

A lead metal 30 is inserted through the lead cam shaft 19 and equipped with a lead claw that engages with a lead groove of the lead cam shaft 19, and this lead metal 30 is fixed to the rear bottom plate 23b of the seedling supply table 23. are doing.

As the lead cam shaft 19 rotates, the seedling supply table 23 is reciprocated horizontally from side to side via the lead metal 30, and when it reaches the lateral end, the drive lever 27 engages with the rotor 28 and is rotated. Belt winding roll 25
It is designed to rotate.

31 is a seedling receiving frame, which is located at the rear end side of the seedling supply stand 23;
A metal fitting 32 is attached to the transplanted transmission case 1 and the handle support rod 17.
A seedling outlet 16 is provided at the left and right center portions.

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, and this drive shaft 36 has a sprocket 37, a gear 38, and a drive cam that receive power from the engine 14 through a chino. 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, which is rotatably supported by the inner wall of one side of the transplanted transmission case 1 in this rotation;
The other end is provided outside the transplanted transmission case 1 so as to protrude beyond the mantle shaft 2.

A driven force 1141 is wedged on the inner cylindrical shaft 4 and is in contact with the drive cam 39 to temporarily rotate and return to its original position. Note that 42 is a spring for restoring the force 1141. Symbol B is a trajectory variation mechanism, which is a force 11 mechanism for rotation, and is composed of the driving cam 39, a driven cam 41, a spring 42, etc., and is a mechanism that subsequently 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 bored in a boss part 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.

3 is a first rotating case, and a bracket 43 is attached to the mantle shaft 2.
It is fixed with a bolt 44 via.

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, respectively.
The gear 46 is configured such that large and small double gears 46a and 46b are integrally formed and rotated at double speed.

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 48 that meshes with the counter gear 47 is fixed to this shaft.
In this rotation, it is rotatably supported by the inner wall of one side 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.

7 is a second rotating case, and a bracket 50 is attached to the mantle shaft 5.
It is fixed with a bolt 51 via the.

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 transplant attachment shaft, which is rotatably supported by the second rotating case 7 and has a distal end protruding outside the case 7.

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

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

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

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

Reference numeral 61 denotes an opening/closing cam, which is provided integrally with a mantle shaft 62 that covers the transplant device attachment shaft 55, and this mantle shaft 62 is connected to a bracket 69 on the second rotating case 7 and
It is attached via a claw 72 to an engaging element 71 provided with a dog claw 70 integral with the engaging member 71 so as to be freely rotatable at a certain angle. 7
Reference numeral 3 denotes a one-way clutch, which is provided between the transplant tool attachment shaft 55 and the mantle clutch 61, and is connected to the claws 7o and 72.
With this one-way clutch 73, the play between the mantle shaft 6 and
The mantle shaft 62 is configured not to be returned to its original position until the pawls 70 and 72 are engaged with each other by rotation of the second rotating case 7 side.

A cam floor 63 is fixed to the shaft 59 and is supported by a spring 6.
4, the shaft 59 is brought into pressure contact with the opening/closing cam 61, and the shaft 59 is rotated by the rotation of the cam 61.

Then, a second
The number of rotations of the rotating case 7 is exactly doubled, and when both rotating cases 3 and 7 are fully extended in a straight line, both the plane rotating cases 3 and 7 face approximately -1-downward, and both rotating cases 3 and 7 face approximately downward. 3 and 7 are configured so that they face in the front-rear direction when they are bent rather than extending in a straight line.

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 the lengths are the same, a straight line trajectory will be drawn below -hi.

Furthermore, the operation of the movable transplant claw 8b is such that when the transplant claw 8 intervenes from the -1- side into the seedling take-out port 16 of the seedling receiving frame 31 and takes out the seedling, it rotates against the spring 64 toward the fixed transplant claw 8a. move,
Thereafter, the cam 61 is shaped so that it 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 and 7, and deforms the transplantation locus P. If the position of this deformation is set so that the transplant tool 10 is rotated rearward 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 78 fixed to a bracket 77 fixed to the reinforcing rod 18. The upper end of the shaft 79, which is inserted through the arm 76 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 provided at 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 perforation device for making circular holes in the mulch film to cover the surface of the ridge, and the above-mentioned handle support rod 17
A claw body 88, 88, which is biased outwardly through a cylindrical body 87 and expands into a circular shape, is attached to the lower end of a shaft 86 that is movable up and down via a bracket 85 on a horizontal rod 84 attached to a horizontal rod 84. established,
A movable cylindrical body 89 is fitted to the outer periphery of the base side of these claw bodies, and the movable cylindrical body 89 is vertically moved by a link mechanism 91 that is intermittently rotated by a rotor 90 fixed to the lead cam shaft 19. The claw bodies 88, 88, . . . are intermittently lowered, subsequently deflated, and then moved upward to widen the claw bodies.

100. 100' is a seedling support for receiving the bottom surface of the seedling provided at the seedling take-out [-116 of the seedling receiving frame 31;
1 by pivot shafts 101 and 101'.

Reference numeral 102 has a driving force 11, is fixed to a shaft 29, and constantly rotates in the A direction.

Reference numeral 103 denotes a driven cam, and a rotation shaft 104 is rotatably supported by metal fittings 32 and 32 provided unevenly on the handle support rod.
A roller 106' is freely rotatably supported on a shaft 106 provided at the tip of an arm 105 fixed to the roller 105.

Reference numerals 107 and 107' designate arms that are offset from the rotating shaft 104, and opening/closing springs 108 and 108' are provided between the tips of each arm and the seedling supports 100 and 100'.

Reference numeral 109 is a winding spring provided between the metal fitting 32 and the arm 105, and the opening/closing spring 108.
At a position where the seedling support surfaces 100a, 100a' of the seedling support bodies 100, 100' are flush with the seedling support surface 31a of the seedling receiving frame 31 via 108', the position regulating portion of the tip of the seedling support body 100.100'' is inserted. The arm 105 is urged toward the mouth until the arms 100b and 100b' come into contact with the back surface of the seedling receiving frame 31.

Note that the opening/closing springs 108, 108' are connected to the seedling support 10.
0.100' is in a non-elastic crimping state from the seedling support posture to position C, where it is retracted from the locus of the transplant claw 8, and is a spring that has a tensile force from position C to position 2, which is further retracted. The cam shape of the drive cam 102 is such that the driven cam 103 resists the coiled spring 109 while the seedling supports 100, 100' are in the retracted position 2 from the seedling support posture.
It is configured so that it can be rotated. Provide transplanted nail 8
From the time when the tip of the seedling support 100.1 passes through the seedling removal port 16 until the upper end of the leaf of the taken out seedling passes through the seedling support 100.1.
00' is in a retracted position.

Next, to explain the function of the upper side, the wheels 15.1 of the transplanter
5 is set so as to straddle the transplanting ridge in the field, and then the seedlings are grown in a mat-like seedling placed on the seedling supply table 23 or in a paper seedling raising device in which pot containers are arranged vertically and horizontally at predetermined intervals. After placing and storing the pot-shaped seedlings A, when the engine 14 transmits and rotates each rotating part, the machine body is propelled by the rotation of the wheels 15 and 15.

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 chino and sprocket 37, the mantle shaft 2 is rotated by the gear 3.
8 and a gear 40, and this outer shaft 2
The first rotating case 3 fixed to is rotated. Further, the inner cylinder shaft 4 is rotated only once while the first rotation case 3 is rotated once by the drive cam 39 and the driven cam 41.

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

The counter gear 47 is subjected to planetary rotation using the oscillating gear 67 integrated with the one-way cylinder shaft 4 as a sun gear, and the gear 48 meshing with this is further rotated.

Therefore, the second rotating case 7 is connected to the gear 49 and the outer shaft 5.
And, it is transmitted and rotated via 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 transplant device 10 has a gear 5 wedged on the shaft 6.
2 as a sun gear, a counter gear 53 rotates around the sun gear, and a gear 5 that is transmitted by the gear 53.
The tip of the transplant claw 8 moves in a closed loop-shaped transplant locus P.

However, the transplant device attachment shaft 55 is not connected to the drive cam 39.
It is primarily rotated by a cam mechanism B composed of a driven cam 41 and the like, and the trajectory P of the transplanted nail 8 is deformed as indicated by P' in the figure.

The transplant nail 8 that draws such a transplant locus P is attached to the seedling receiving frame 3.
When the seedling is inserted into the seedling extraction port 16 from above and is caught between the fixed transplant claw 8a and the movable transplant claw 8b, the second rotating case 7 is provided with the bracket 69 through the engager 71 and the claw 70, 72. The transplant movable claw 8b is operated by the cam 61 and the cam floor 63, which are integrated with the outer mantle shaft 62, and the seedling A is firmly held. When the seedling A is moved slightly downward in this state, the seedling A is pulled out rearward by the action of the drive cam 39 and the driven cam 41, and the seedling A is reliably divided and taken out.

At this time, since the swinging motion of the transplant device 10 is performed sequentially, the swinging motion of the implant 10 is caused by the rotation of the cam 61 at the portion between the meshing play between the dog claws 70 and 71. Because of the advance, after this swinging motion, the cam 61 does not rotate until the claws 70 catch up with and engage with the claws 71, and the cam floor 63 receives the cam action in the opposite direction and holds the seedling A. 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 one-way clutch 73 is located between the shaft 55 and the cam 61, when the implant 10 is swung around the shaft 55, the cam 61 is rotated together with this, and the implant 10 is then stopped. Until the claws 70 and 72 engage with each other, there is no need to move against the cam floor 63, and the seedling A that is being held in the grip will not be released as described above.

In this way, the transplant tool 10 descends while holding the seedling A between the transplant claws 8a and 8b. Then, the mulch film covered on the surface of the ridge is grasped and torn by a perforating device 83 operated by a link mechanism 91 operated by a rotor 90, and then the shaft is intermittently pushed down by a rotor 82. The hole fixed to 70 is made by inserting the transplant claw 8 into the transplant hole made in the soil surface on the ridge using tool 79, where the lower transplant claw 8b opens outward by the action of the cam 61, and the seedling A is released. It will be transplanted.

In particular, until the seedling A is grasped by the transplant claws 8a and 8b of the transplant tool 10, the seedling A is supported by the seedling supports 100 and 100', so that the seedling clamping posture by the transplant claws 8a and 8b is good. Seedlings will not fall from the seedling outlet 16.

Immediately before the tips of the transplanted claws 8a and 8b pass through the seedling removal port 16, the drive cam 102 comes into contact with the driven cam 103 and the seedling support 100, 100' retreats, so that the transplanted claws 8a and 8b are moved back.
Seedling A is properly pinched and divided by and 8b and transplanted to the field.

FIG. 11 shows a second embodiment, in which the shape of the drive cam 102 is unique, and the position H where the drive cam 102 and the driven cam 103 first come into contact and the position where the seedling supports 100 and 100' are retreated. The arm 107, 107' is provided with an inclined surface from which the seedling support 100.100'' is maintained at the retracted position C.
and seedling support 100, 100' are rods 120, 120
’ are connected.

[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.
Figures 5 and 5 are cross-sectional views, Figure 6 is a perspective view of the main parts, and Figure 7 is a sectional view.
8 is a side view thereof, FIG. 9 is a plan view, FIG. 10 is a side sectional view of the main portion, and FIG. 11 is a side view showing the second embodiment. Symbols in the figure: 1 is a transplanted transmission case, 3 is a first rotating case,
7 is a second rotation case, 8 is a transplanted nail, 10 is a transplant tool, 16
23 is a seedling supply stand, 31 is a seedling receiving frame, 100.
100' is a seedling support, A is a seedling, B is a mechanism for changing the trajectory, P
indicates the transplant trajectory.

Claims (1)

[Claims] In a transplanting machine equipped with a transplanting tool 10 for taking out seedlings from a seedling outlet 16 of a seedling receiving frame 31 provided opposite to one end of a seedling supply table 23 that is supported by a machine body and reciprocating, and planting them in a field, Seedling supports 100 and 1 that support seedlings in the seedling outlet 16
00' is provided, and the seedling supports 100, 100' are attached to the transplanting tool 1.
This transplanter is configured to open when a transplant claw 8 of No. 0 passes through a seedling take-out port 16.