JP3430566B2 - Seedling transplanter - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling transplanter capable of easily changing the number of rows per row from two to four. . 2. Description of the Related Art A planting device is positioned at the center of the body of a vehicle, in the left and right direction.
A method of planting seedlings in one ridge each way while moving reciprocally along the ridge, and a method of displacing the planting device from the left and right center of the body and planting seedlings in parallel in one ridge by reciprocation. Vegetable transplanters have been developed which can change the number of planting lines per row. However, this type of conventional vegetable transplanter requires switching the number of planting strips.
Difficult to obtain, for example, equipped with two planting devices
, To easily switch between two and four-row plants
However, there was a problem that workability was poor. [0003] Therefore, the present invention usually
It is an object of the present invention to provide a seedling transplanter that can easily switch a widely used 2 to 4 row planting . [0004] In order to solve the above problems, the present invention has the following configuration. That is, the seedling transplanter according to the present invention , while providing two planting devices side by side in the left-right space between a pair of left and right running wheels ,
Only one of the two planting devices is deactivated.
And a two-sided planting clutch
The position can be moved from side to side without changing the left and right spacing.
One of the two planting devices
Is located at the left and right center of the left and right traveling wheels,
The distance of the left and right planting equipment from the right and left center of the right running wheel is
1: 3 ratio and two left and right planting devices are in front
It is located equidistant across the left and right centers of the left and right running wheels
It is characterized by being able to switch to the state . [0005] The operation of two planting devices provided side by side
Without changing the interval, one of them is to the left of the left and right running wheels
Right center and right and left running wheels
The distance between the left and right planting devices from the heart is 1: 3
State and two planting devices on the left and right
Can be switched to a state equidistant across the right center
Therefore, it is easy to switch between 2 and 4 plants
Can be. That is, as shown in FIG. 9 or FIG.
The distance between the left and right planting devices across the center line is 1: 3
And then reciprocate, four rows can be planted per ridge.
You. In addition, as shown in FIG.
By stopping the driving of the planting device, three plants can be planted.
Can be. In addition, two-row planting is planted across the center of left and right
What is necessary is just to perform in the state which arrange | positioned the apparatus at equal intervals. [0007] In addition, as described above, the reciprocating movement per ridge
To perform 3 or more strips of the odd strip planting, forward path or in one of the return
In the case of planting less than one row, the
Supply of seedlings to the planting device without stopping the planting device
This can be achieved by stopping the supply, but the supply of seedlings will stop.
Stopped planting equipment does not plant seedlings, but
It moves up and down with a predetermined locus with respect to the planting location of
This has the problem of disturbing the ridges. But
Thus, in the present invention, a streaking plant that does not allow seedlings to be planted is driven.
The plant was stopped and planting was carried out one step less.
Can be avoided. FIG. 1 to FIG. 12 show an example of the present invention. Hereinafter, this example will be described. The seedling transplanter 1 is a walking vegetable transplanter, and has an engine 2 and a transmission case 3 in the center of the front part of the machine.
And final cases 6, 6 for distributing running power and planting power are integrally provided at the distal ends of axle cases 5, 5 projecting outward from the left and right side surfaces of the transmission case. Further, a chain case 7, 7 is provided on an extension of the axle cases 5, 5 so as to be rotatable up and down,
Front wheels 8, 8, which are drive wheels, are pivotally supported at the tips. The left and right chain cases 7, 7 have screw portions 7a,
7a, which are fitted and supported by the axle cases 5 and 5, and by rotating the tread adjusting handle 9 provided on the right final case 6, the screw portions 7a and 7a
Enter the axle cases 5 and 5 by the same amount on the left and right, and the tread of the front wheels 8 and 8 is adjusted. A pair of left and right vertical frames 10, 10 are fixed in parallel to the rear portions of the axle cases 5, 5, and at the rear ends of these vertical frames, a U-shaped planting portion frame 11 opening rearward is provided. It is fixed. The left and right rear ends of the planting section frame 11 are provided with a steering handle 1 having a rectangular shape in plan view.
2 are installed. The rear portion of the steering handle 12 is higher, and the grip portion 12a is at an appropriate height. A rear wheel support shaft 15 is supported left and right below the front end of the planting portion frame 11.
Rear wheels 17, 17 are pivotally supported at the rear ends of the rear wheel support members 16, 16 provided slidably and rotatably at both ends. The front wheels 8, 8 and the rear wheels 17, 17 are moved up and down by hydraulic pressure. The mechanism is configured as follows. A hydraulic cylinder 20 is fixed to the rear of the transmission case 3 in the rearward direction, and a horizontal rod 21 in the left-right direction is attached to a piston 20a. A connecting rod 2 connecting left and right ends of the horizontal rod 21 to arms 22, 22 fixed to the base of the chain case 7, 7 and arms 23, 23 fixed to the base of the rear wheel supports 16, 16.
The connecting members 25, 25 attached to the intermediate portions of the members 4, 24 are connected. When the hydraulic cylinder 20 expands and contracts, the front and rear arms 22, 22, 2 are connected via the connecting rods 24, 24.
3, 23 are rotated, and the front wheels 8, 8 and the rear wheels 17,
17 moves up and down. The connecting members 25, 25 are slidably fitted to the horizontal rod 21 and are slidable left and right within the range of the elongated holes 21a, 21a.
Even if the left and right positions of 2, 22, 23 and 23 are shifted, it is possible to cope with this. When the treads of the front wheels 8, 8 are adjusted, the treads of the rear wheels 17, 17 are also adjusted via the arm 22, the connecting rod 24, and the arm 23. The wheel vertical movement mechanism is controlled based on the operation of a ground contact sensor 27 whose rear portion rotates up and down in accordance with a change in the height of the top soil surface of the ridge U. That is, when the ridge U is raised and the rear part of the ground contact sensor 27 is pushed up, the hydraulic cylinder 20 is extended and the front wheels 8, 8 and the rear wheels 17, 17 are extended.
Moves down at the same time, and the aircraft rises. Conversely, when the ridge U is lowered and the rear part of the ground contact sensor 27 falls, the front wheels 8, 8 and the rear wheels 17, 17 simultaneously move upward, and the body descends.
As described above, the planting depth of the seedling by the planting device 33 described later is always kept constant by appropriately raising and lowering the machine according to the change in the height of the top soil surface of the ridge. The vegetable transplanter 1 has two sets of planting units A and B including a transmission case 30, a seedling mounting table 31, a watering device 32, a planting device 33, a groove 34, and the like. The planting section units A and B are supported by a gap adjusting shaft 36 supported on the front of the planting section frame 11 and a base shaft section 12b of the steering handle 12. Screws 37A and 37B are cut in the gap adjusting shaft 36, and the front ends of the planting units A and B are screwed into these screw portions, respectively. The directions of the two screws 37A and 37B are opposite, and the pitch ratio is p (A): p (B) = 1: 3. Therefore, when the inter-row adjusting shaft 36 is rotated using the inter-row adjusting handle 38, the planting units A and B move in opposite directions at a ratio of 1: 3, and the distance between the two is adjusted. This mechanism is the gap adjusting means. Further, a shift shaft 41 in which screws 40 are cut at a constant pitch in a certain direction is supported on the rear ends of the vertical frames 10, 10, and a connecting frame having one end screwed to the shift shaft 41. The other end of 42 is integrally connected to the gap adjusting shaft 36. When the shift shaft 41 is rotated using the shift handle 43, the connecting frame 42 moves left and right along the shift shaft 41, and the strip adjusting shaft 36 integrated therewith also moves left and right, and the planting unit A, B are shifted by the same amount in the same direction. This mechanism is the shift means. The connecting frame 42 is located at the center line CL between the right and left sides of the body.
When positioned above, the left planting device 33 from the left and right center line CL
The ratio of the distance l (A) to A and the distance l (B) from the left / right center line CL to the right planting apparatus 33B is l (A): l
(B) = 1: 3. The power is transmitted from the final case 6 to the transmission case 30 via a transmission shaft 45. This transmission shaft 45
The output shaft 46 of the final case and the input shaft 4 of the transmission case 30
7 is universally connected by universal joints 48, 48. The transmission case 30 incorporates a planting section mission (not shown), a planting clutch 50, and the like, and is transmitted to the planting device 33 via a transmission means (not shown) in the transmission pipe 51. At the same time, it is transmitted to a lead cam shaft 53 for lateral movement of the seedling mounting table via a chain (not shown) in the chain case 52. A seedling feed cam shaft 55 to which the seedling feed cams 54, 54 are attached protrudes from the side surface of the transmission case 30. The planting clutch 50 is operated by a clutch pin 50a protruding from the upper surface of the transmission case 30, and when this clutch is disengaged, each part of the planting unit stops at a predetermined position. . The seedling mounting table 31 is provided in a slightly inclined state such that the front side is higher, and the rear bottom surface is formed in the transmission case 3.
A roller 61 slidably supported by a support member 60 provided on the transmission case 3 and attached to a front bottom surface thereof is supported by a rail 62 provided on the transmission case 3. The lead cam shaft 53 is a shaft in which a spiral groove is formed on the outer peripheral surface, and the claw of the metal fitting 63 attached to the bottom portion of the seedling mounting table 31 is engaged with the groove, and when the lead cam shaft 53 rotates, The movement of the claws along the groove causes the seedling mounting table 31 to reciprocate left and right. The seedling mounting table 31 has an open bottom surface, and a seedling feeding belt 65 for transferring the seedlings on the table to the rear is assembled thereto. The seedling feed belt 65 is driven by the seedling feed cam 54 when the seedling mounting table 31 reaches the end of the left-right stroke, and intermittently circulates in a predetermined direction. At a position adjacent to the rear end of the seedling table 31, a seedling receiving plate 67 for receiving the last row of seedlings on the seedling table 31 is provided integrally with the support member 60. This seedling receiving plate 6
7 is provided with a seedling outlet 68 (shown in FIGS. 3 to 6) cut out in a U-shape in plan view. further,
At the rear end of the seedling mounting table 31, a comb-shaped seedling holder 6 for holding the last row of seedlings on the seedling mounting table 31 so as not to fall from the seedling receiving plate.
9 are provided. When the seedlings are placed on the seedling mounting table 31 and each part is started, the seedling mounting table 31 moves laterally, and the last row of seedlings located on the seedling receiving plate 67 is sequentially placed in the seedling removal port 68. Supply. When the seedling mounting table 31 reaches the end of the left and right strokes and finishes supplying all the seedlings in the last row to the seedling removal outlet 68, the seedling feeding belt 65 moves by an appropriate amount, and the seedling group on the seedling mounting table 31 is moved by one. Transfer backward by the number of rows. The watering device 32 is a device for watering the seedlings immediately before transplanting. A pair of left and right nozzles 71L, 71R is provided at a position behind the seedling feeding belt 65 so as to face above the seedling outlet 68. . These pair of nozzles 71L, 71
R is supplied with water from a common water supply pipe 72, and its water supply direction is through a rod 73, an arm 74 and the like.
Is switched by the throttle valve 75 linked to the lateral movement of the seedlings. When the seedling table 31 moves rightward, water is sprayed from the right nozzle (see FIG. 5), and when the seedling table 31 moves to the left side, left side. Is sprayed from the nozzle (see FIG. 6). That is, the nozzles on the side where the seedlings are empty always operate so that the seedlings N,... Remaining on the seedling mounting table 31 do not interfere with the sprayed water. By irrigating the seedlings immediately before taking out the seedlings as described above, the pots and the bed soil of the seedlings do not soften, and it is possible to prevent the seedlings from breaking during the separation of the seedlings or during the transplanting operation. In addition, by aligning the leaves upward with water pressure, it is possible to prevent the separated seedling and the seedling adjacent to it from tangling with the leaves,
Seedlings can be separated well. Further, since the mud adhering to the implant nail is washed away by the sprayed water, there is also an effect that the later-described implant nails 83 can be prevented from being clogged with mud. It is to be noted that air may be discharged from the nozzle instead of water if it is only for preventing the entanglement of the leaves and for cleaning the implant nails. The planting device 33 includes a first rotating case 80 attached to the transmission pipe 51, a second rotating case 81 attached to the tip of the first rotating case, and an attachment attached to the tip of the second rotating case. The transplant case 82 is provided with a pair of implantation claws 83, 83 and a seedling extruded body 84. Each case includes a plurality of shafts, gears, and the like, and includes a first rotating case 80 and a second rotating case 8.
When the transplant cases 1 are rotated in opposite directions in a predetermined direction, the transplant case 82 draws a predetermined trajectory while performing a closed loop motion up and down while being kept in a fixed posture. At the upper part of the locus, the planting claws 83, 83 close to clamp the seedling supplied to the seedling outlet 68, and at the lower part of the locus, the planting claws 83, 83 open, and the seedling extruded body 84 projects to ridge the seedling. It is configured to be planted on the topsoil surface. The groove 34 is used to form a groove for transplanting seedlings in a field, and has the shape shown in FIG. That is, generally, a pair of left and right side plates 90, 90 are joined at the front end, and the front end is sharp in plan view, and the upper and lower and rear portions have a hollow shape. To further explain,
The front end protrudes forward toward the lower side, and the distance between the left and right side plates is wider toward the lower side. And it is detachably attached to the transmission case 30 by a support rod 91 fixed to the upper surface of the front part. With the advance of the machine body, the groove forming body 34 moves with the lower half part buried in the soil, and the soil in front of the seedling planting position by the implantation claws 83, 83 is swept to the left and right sides. . Since the front end of the groove body 34 has the above-described shape, the soil is scooped up so as to be scooped up, so that foreign matters such as grass roots are hardly caught on the front end of the groove body 34.
The seedling N is planted in the groove M formed by the groove 34 (see FIG. 8). Then, after the groove 34 has passed, the groove M
Of the seedling N planted by the collapsed wall surface is buried in the soil. Since the groove M for seedling transplantation has a "c" shape that is wider at a lower portion in a front view, the wall surface is surely collapsed,
The covering effect of seedlings is good. The vegetable transplanter 1 performs planting in the following manner. In the case of four-row planting (see FIG. 9), the connecting frame 42 is positioned at the center of the right and left sides of the body,
The interval between (A) and (B) is set to be twice as long as the strip width w. In addition, the interval w is set to 1/4 of the ridge width d. At this time, the distance from the left-right center line CL to the left planting device 33 (A) is w / 2, and the right planting device 33 from the left-right center line CL is right.
The interval up to (B) is 3w / 2. When the planting is performed on one ridge U by reciprocating in this state, the planting device 33
(A) planting seedlings N in the row and planting device 33 (B) planting the seedlings N in the two rows, respectively. On the return trip, the planting device 33 (A) is planted in the claw and the planting device 33 (B) is planted in the a. Seedling N is planted. When the ridge width is wider than the above (see FIG. 10)
The tread adjusting handle 9 is turned in a predetermined direction to spread the tread, and the connecting frame 42 is left centered on the right and left of the body, and the strip adjusting handle 38 is turned in a predetermined direction to rotate the planting device 33 ( The interval between A) and (B) is increased. Assuming that the ridge width is wide by Δd, the extension of the inter-strip distance is Δw = Δd / 4, and the new inter-strip distance is w + △ d / 4. In the case of three-row planting (see FIG. 11), the interval between both planting devices 33 (A) and (B) is made equal to the width w between the lines, and the left planting device 33 (A) is attached to the body. It is centered on the left and right.
The interval w is set to 1/3 of the ridge width d. Then, on the outward path, both of the planting devices 33 (A) and (B) are operated, and the planting devices 3 (A) and (B) are operated.
3 (A), the seedlings N are planted on the ridges by the planting device 33 (B). On the return trip, the planting device 33 (A) is stopped, and the planting device 33 (B) is used to plant the seedling N on the streak.
Since the planting clutch 50 is provided for each planting unit, it is possible to stop the operation of the desired planting unit. Of course, it is needless to say that the seedlings N may be planted only on the strips C on the outward route, and the seedlings N may be planted on the strips A and B on the return trip. In order to prevent the seedlings from being planted only on a specific row, the seedling mounting table 31 of the row may be emptied and the planting device 33 may be driven empty. When the surface or the ridge surface is covered with the mulch, unnecessary holes are formed in the mulch, which is not preferable. In the case of two-row planting (see FIG. 12), the interval between the two planting devices 33 (A) and (B) is made equal to the inter-row width w, and the two planting devices 33 (A) are taken from the left and right central axes CL. ) And (B) are equalized. Then, both the planting devices 33 are operated to perform planting in only one direction. As described above, the use of the seedling transplanter according to the present invention makes it easy to switch between three and four-row planting.
Work during normal planting work
It can be greatly improved. ## EQU00001 ## ## EQU1 ##

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a vegetable transplanter according to one embodiment of the present invention. FIG. 2 is a side view of the walking vegetable transplanter shown in FIG. FIG. 3 is a side view of the watering device. FIG. 4 is a rear view of the watering device. FIG. 5 is a plan view illustrating a watering method. FIG. 6 is a plan view illustrating a watering method. FIG. 7 is a perspective view of a groove forming body. FIG. 8 is a front sectional view of a groove forming body. FIG. 9 is a diagram showing a relationship between a vegetable transplanter and ridges when planting four ridges per ridge. FIG. 10 is a view showing the relationship between the vegetable transplanter and the ridge when the ridge width is wider than the state of FIG. 9; FIG. 11 is a view showing the relationship between a vegetable transplanter and ridges when planting three ridges per ridge. FIG. 12 is a diagram showing the relationship between a vegetable transplanter and ridges when planting two ridges per ridge. FIG. 13 is an explanatory diagram illustrating an example of block division of a field. FIG. 14 is a perspective view illustrating a use state of the first example of the swivel base. FIG. 15 is a side view of a second example of the swivel base. FIG. 16 is a perspective view illustrating a use state of the second example of the swivel base. FIG. 17 is a perspective view illustrating a use state of a third example of the swivel base. FIG. 18 is a perspective view illustrating a use state of a fourth example of the swivel base. FIG. 19 is a sectional view of a fourth example of the swivel base. [Description of Signs] 1 Seedling transplanting machine (walking vegetable transplanting machine) 8 Front wheel 17 Rear wheel 31 Seedling table 33 Planting device 36 Spacing adjusting shaft (Span adjusting means) 38 Spacing adjustment handle (Span adjusting means) ) 41 shift shaft (shift means) 43 shift handle (shift means) 50 planting clutch

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-356110 (JP, A) JP-A-57-163404 (JP, A) JP-A-4-58808 (JP, A) JP-A-5-163 30814 (JP, A) JP-A 4-38210 (JP, U) JP-A 54-25436 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 11/00-11 / 02 303

Claims (1)

(57) in the lateral direction spacing portions of the Claims 1 pair of right and left running wheels
In addition to providing two planting devices side by side,
Since only one of the planting devices is stopped
And a two-sided planting device.
Left that can be moved left and right without changing the left-right spacing
Right moving means one of the two planting devices
The right and left centers of the traveling wheels
The distance of the left and right planting devices from the left and right centers of the row wheels is 1: 3
And the two planting devices on the left and right
State that they are equidistant across the left and right centers of the running wheels
A seedling transplanter characterized in that it can be switched to another.