JPH0440808A - Vegetable transplanter of riding type - Google Patents

Abstract

PURPOSE:To make ready controlling operation with a simple mechanism by making number of transplanter odd and making intervals with each other to be controllable. CONSTITUTION:Inside wheels A of an outside (front side) transplanter are longitudinally overlapped with left and right wheels B of a central (rear side) transplanter in a case of the narrowest space between vegetable rows. Although a large load is applied to the wheels B of the central transplanter 2(II) as a length of fitting frames are large, a sinking amount of the transplanter 2(II) into soil is reduced because the wheels B pass on the place hardened with stamping by the wheels A in operating the work in a state of the narrowest interval between vegetable rows and therefore depth of planting is averaged. By said method, number of transplanter is odd and installation of transversely transferring mechanism for controlling between the rows is not necessary in the central transplanter 2(I), then the construction is simplified, thus operation of controlling between the rows becomes ready because only position controls of the transplanters in both sides are necessary in reference to the central transplanter.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a riding vegetable transplanter that is used by towing a planting section with a passenger vehicle body.

[Prior Art] A plurality of transplanters equipped with a seedling platform for placing seedlings and a planting device for planting the seedlings on the seedling platforms in a field are towed by a passenger vehicle body, and the seedlings are simultaneously planted in multiple rows. A riding vegetable transplanter is being considered.

[Problem to be solved by the invention] In a large field where the above riding vegetable transplanter is used,
Generally, the seedlings are planted in flat fields without mass formation, and the spacing between rows varies depending on the type of vegetable and each region. For this reason, it is necessary to provide a row spacing adjustment lltM for adjusting the spacing between the transplanters, but it is desirable that the mechanism of this spacing adjustment device be as simple as possible, and that the adjustment operation be easy.

[Means for Solving the Problems] Therefore, one aspect of the present invention has the following configuration. That is, the riding vegetable transplanter according to the present invention is a riding vegetable transplanter in which a plurality of transplanters each including a seedling stand on which seedlings are placed and a planting device for planting the seedlings on the seedling stands in a field are towed by a riding vehicle body. The transplanter is characterized in that the number of the transplanters is an odd number and the mutual spacing between them is adjustable.

[Function] When the number of transplanters is an odd number, the center transplanter can always remain fixed in position, which simplifies the row spacing adjustment mechanism. Since the interval can be adjusted based on , the adjustment operation becomes easy.

[Example] The embodiments shown in the drawings will be described below.

This riding vegetable transplanter is for 3-row planting, and has 3 sets of transplanters 2.
．． A planting section 3 equipped with... is attached to a 3P link device 6 provided at the rear of a tractor body (passenger vehicle body) 5. The 3F link device 6 has a connecting frame l on the planting section side at the rear end.
It has a pair of left and right lower links 11.11 to which O is attached, and one top link 12 whose length is adjustable. 11 is connected to the rear part of the vehicle by lift rods 16, 16. By driving the drive arm 15.degree. 15 and swinging the lower link 11.11 up and down, the entire planting section 3 is raised and lowered.

Also, by adjusting the length of the top link 12,
The mounting angle of the planting section 3 can be changed.

A transmission case 20 for transmitting power from the PT Off 1119 of the tractor body 5 is provided behind the connection frame 10, and upper frame pipes 21 (L, R) protrude from the transmission case to the left and right, and front and rear pipes 21 (L, R) provided horizontally to the left and right at the rear lower part thereof. The lower frame pipes 23, 24 are connected to each other by connecting plates 26, 26, side plates 27, 27, etc. to form the machine frame of the planting section. In addition,
The connecting frame IO has a chevron shape when viewed from the rear, and has mounting flanges 29 and 29 provided on both sides of the transmission case 20.
The lower part of the transmission case 20 is attached to the transmission case 20, and a jack 30 provided at the center is connected to the upper part of the transmission case 20. Above this machine frame, there is a step 3 having the width of the machine frame.
2 is provided. An operator seat 33 is installed facing rearward in the center of the stave 2b 32, and a planting clutch lever 34 is provided on the side thereof. The planting clutch lever 34 is attached to a lever box 35 fixed to the lower pipe lever 23 so as to be rotatable back and forth.

A compression wheel support rod 37 is placed below the upper frame pipe 21.21.
is installed horizontally, and on this is a pressure wheel 38 made of rubber tires that serves both to support the planting section 3 and to suppress the field. -... are held in large numbers. As shown in FIG.
One set of suppression wheels is attached to a suppression wheel support rod 37, and the suppression wheels 38. ... are arranged at equal intervals in the left and right direction. Suppression ring 38. . . . is preferably provided on the cloth to some extent, and in the illustrated example, the distance a between the pressing rings is about 1/3 of the convergence of the pressing rings. Depending on the case, the distance a may be further narrowed.Also, a pair of inflatable teeth 41, . . . is a tooth mounting rod 42 protruding forward from the compression wheel support rod 37.
It is attached to ... so that its vertical position can be adjusted. The expandable tooth 41 is a vertically elongated plate whose lower part is slightly curved forward, and its cross-sectional shape is chevron-shaped with its left and right center portions pointing forward.

The expandable tooth 41 is located inside the soil from the outer end of the rear wheel 40 and is attached so that its lower end is buried in the soil. is being dug up. 11 soft teeth 41
．． ... to dig up the soil where the rear wheels passed at 40 degrees 40 and once it swelled and softened, the suppression wheels 37. Because the field is suppressed by ..., the height of the field is averaged, making it suitable for transplanting seedlings.

In addition, a large number of suppression wheels 38. Since the planting part 3 is supported on the field surface by ..., the planting part is prevented from sinking into the soil and has excellent strength.

Further, a cylinder 44 is fixed horizontally to the front end of the side plate 27, and a line marker 43 having a sharp lower end 43a is vertically adjustable at the tip of a rod 45 that is slidably fitted to the cylinder 44. is attached to. The rod 45 is provided with a positioning groove 47°, and during the zero operation in which the tip of the mounting screw 48 is engaged and fixed in the matching groove, the marker on the unplanted side is inserted as shown in Fig. 7. 43 is lowered and fixed to the extent that its lower end 43a is inserted into the soil. As the planting progresses, a line is drawn by the marker 43 to indicate the planting row for the next step at a position separated by the distance W from the outermost planting row.

The transplanting machines 2 (I to ■) have the same configuration, and each transplanting machine has a seedling stand 50 on which the seedlings are placed and a groove for transplanting in the field, as shown in FIGS. 8 to 13. Grooving device 51,
a planting device 52 for planting the seedlings on the seedling stand 50 in the field;
It is provided with a pair of soil covering wheels 53, 53 on the left and right for filling soil in the trench after transplanting.

The seedling stand 50 is tilted so that the front part is on top (the horizontal angle is 1
By reciprocating from side to side, the tubes are sequentially supplied to the seedling outlet 50a provided at the rear. A seedling supply frame 50b made of a pipe as shown in FIG. 10 is attached to the front part of the seedling table 50 so that its angle can be adjusted freely. When replenishing seedlings, the seedlings 101, . The work will be easier if you replenish the seedlings while doing so.

The trencher 51 has a boat shape and is fixed to a mounting rod 51a with pins 51b, . . . so that its bottom surface is at a predetermined depth from the field surface.
The groove 100 of a predetermined width and depth is formed in the field by moving through the soil as the machine advances. The depth of the groove 100 can be adjusted by changing the attachment position to the attachment rod 51a.

The planting device 52 has a planting rod 54 that moves up and down in a predetermined trajectory, and uses a pair of transplant claws 54a, 54a attached to the planting rod to collect the seedlings 1 supplied to the seedling outlet 50a.
01 and plant it into the groove 100.

The soil covering ring 53 has a dish-shaped shape, and is similar to the wheel support plate 5 described later.
A soil covering wheel support plate 53b is attached with a nut 55 to a threaded rod 53a provided at the rear end of 7a so as to be freely rotatable up and down. There is. Since the threaded rod 53a is urged downward by the spring 56, the soil covering ring 53 moves while elastically pressing against the field surface. As a result, the soil raised on both sides of the groove 100 is guided and pushed into the groove 100.

By adjusting the angle at which the soil-covering wheel support plate 53b is attached to the threaded rod 53a, the inclination angle of the soil-covering wheel 53.53 relative to the field surface can be arbitrarily changed.

This transplanter body is supported on the field by a pair of left and right wheels 57,57. The wheels 57 are pivotally supported by rear end portions of wheel support rods 57a, 57a which are attached to the machine frame of the machine body so as to be rotatable up and down.

Reference numeral 59 in the figure is a mission case, and power is transmitted from the mission case to a lead cam shaft 61 for driving the seedling platform via a seedling platform transmission case 60, and to the planting device 52 via a planting device transmission case 62. is transmitted. A planting clutch is built into the mission case 59 to stop each part of the transplanter at a predetermined position. The planting clutch for each row is operated by the planting clutch lever 34, but the planting clutch for each row has a phase difference in its important operation, so that the positions at the beginning of planting and at the end of planting are aligned. It is set as follows. That is, important operations are performed in order from the planting clutch of the transplanter located at the front. Figure 14 is a control sequence diagram, SOR, -5O
R3 is an on/off solenoid for each planting clutch.

The transplanters 2 (I to ■) are arranged in a V-shape, with those on both sides located in the front, and the one in the center located a predetermined distance behind. )teeth,
Its front portion overlaps the step 32 in plan view.

By arranging it in this way, the overall length can be shortened and turning is facilitated.

Each transplanter is mounted on a hexagonal shaft 65 supported midway down the lower frame pipe 23,24. As shown in FIGS. 4 and 9, the structure of the mounting portion is such that a bearing portion 67 provided on a mounting frame 66 on the side of the transplanter is attached to a hexagonal shaft 67.
5, so that the entire transplanter can swing up and down about a hexagonal shaft 65 and can move along the hexagonal shaft 65. By the way, the transplanter in the center? Only (■) does not slide on the hexagonal shaft 65 and is fixed at fixed positions on the left and right sides. A roller 69 that can be moved freely along the lower surface of the lower pipe frame 23 on the front side and a roller 70 that can be moved freely along the upper surface of the lower pipe frame 24 on the rear side are mounted on the frame on the transplanter side, with a slight play s ( St+s2), and the transplanter 2 can pitch up and down within the range of the play. In addition, the transplanter 2 on both sides (
A row spacing adjustment lever 72 (I, m) that protrudes above the step 32 is provided on the mounting frame 66 of I, I [[). The distance between the rows can be adjusted by moving the rows along the row. Guide groove 73 (I) provided in step 32.

(2) Lever engaging portions 73a, . . . are formed at a predetermined pitch. Since the transplanter 2 is supported by the lower frame pipe (23 or 24) by the rollers (69 or 70), the transplanter can be easily moved and the row spacing can be adjusted easily.

The riding vegetable transplanter l shown in the figure is capable of adjusting the row spacing in seven stages, and Fig. 2 shows the row spacing when it is at its narrowest.
Figure 3 shows the case when the row spacing is widest. As shown in Figure 2, when the row spacing is narrowest, the outside (
The inner wheels A, A of the transplanter on the front side) and the left and right wheels B, B of the transplanter on the center (rear side) overlap front and back.

Central transplanter? In (■), a large load is applied to wheels B and H because the length of the mounting frame 66 is long.

When working with the row spacing at its narrowest, wheels A and A
Since the wheels B and B pass through the tracks compacted by the soil, the amount of sinking of the transplanter 2 (■) into the soil is reduced, and the planting depth is averaged.

In this way, if the number of transplant machines is odd, the center transplant machine 2 (
In I), there is no need to provide a lateral movement mechanism for adjusting the row spacing, the configuration is simple, and the positions of the transplanters on both sides can be adjusted based on the center transplanter, making it easy to adjust the row spacing. It also becomes easier to operate.

In addition, in the case of a riding vegetable transplanter for 5-row planting, it is preferable to arrange it in a W shape as shown in Fig. 15 from the viewpoint of shortening the overall length and turning ability.In this case as well, the transplanter in the center (III
) is fixed in a fixed position, and the row spacing is adjusted by moving the transplanters on both sides from side to side.

At this time, the amount of movement of the I and V transplanters will be twice the amount of movement of the II and IV transplanters. It can also be used as a machine.

The hexagonal shaft 65 is connected to each transplanter 2. It is also the drive shaft of the transmission case 20, the rotating shaft 21a in the upper frame pipe 21 (L), and the gears 42a and 42b in the gear case 42.
, a rotating shaft 76, a chain 77a in a chain case 77, and the like. A gear 81 attached to the transmission frame 80 of the transplanter is attached to the hexagonal shaft 65. ... are slidably fitted together, and the power extracted by the gears is transmitted to the transmission case 57 via the gear 82 meshing with the gears, the chain 83 in the transmission frame, and the like.

Reference numeral 90 denotes a spare seedling stand, which has multiple shelves 91 on which each tier can hold two seedling boxes. ... has been formed,
It is rotatably attached in a horizontal plane to brackets 92 that project obliquely upward from both sides of the machine frame. 93 is a detent lever. At all times, the longitudinal direction of the seedling box is kept facing the direction of travel, as shown by the solid line in Figure 2.
When taking out the seedling box, the preliminary seedling mounting stand 90 is rotated so that the longitudinal direction of the seedling box is perpendicular to the direction of travel, as shown by the two-dot chain line in the figure. In addition, the pillars 94 of the left and right spare seedling stands
．． The upper ends of 94 are connected to each other by a horizontal rod 95.

[Effects of the Invention] As is clear from the above description, since the riding vegetable transplanter according to the present invention has an odd number of transplanters, the center transplanter can remain fixed in position when adjusting the row spacing. Therefore, it is easy to operate, and there is no need to provide a moving mechanism for adjusting the row spacing in the central transplanter, making it possible to simplify the structure.

[Brief explanation of the drawing]

Fig. 1 is a side view of one embodiment of the riding vegetable transplanter according to the present invention, Figs. 2 and 3 are plan views showing different states thereof, and Fig. 4 is a side view of the main part of the planting section. 5 is an explanatory diagram of the machine frame configuration of the planting section, FIG. 6 is a front view of the suppression ring attachment section, FIG. 7 is a front view of the marker attachment section, and FIG. 8 is a side view of the transplanting machine. Figure 9 is a plan view of the same, Figure 10 is a perspective view of the seedling supply well, Figure 11 is a side view of the soil-covering ring attachment part, Figure 12 is its plan view, and Figure 13 is of the trencher and soil-covering ring. An explanatory diagram of the action, Fig. 14 is a sequence diagram of planting clutch control,
FIG. 15 is an explanatory diagram showing the arrangement of the transplanter. l... Riding vegetable transplanter, 2... Transplanter, 3... Planting section, 5... Passenger vehicle body, 6... 3P link device, 32... Step, 33... Operator seat, 34
... Planted clutch lever - 138 ... Suppressing wheel, 40.
...Rear wheel, 41...Inflatable teeth, 43...Marker,
50... Seedling stand, 51... Grooving device, 52... Planting device, 53... Soil covering wheel, 65... Hexagonal shaft, 69.7
0...Roller, 72...Strip spacing adjustment lever, 90...
- Spare seedling stand.

Claims (1)

[Claims] (1) A riding vegetable transplanter in which a plurality of transplanters, each of which is equipped with a seedling stand on which seedlings are placed and a planting device for planting the seedlings on the seedling stands in a field, is towed by a traveling vehicle body; A riding vegetable transplanter characterized in that the number is odd and the mutual spacing between them is adjustable.