JPS58193604A - Rice planter - 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 The present invention relates to a rice transplanter that can be used for multiple purposes.

The main body includes a power device including a prime mover, running wheels that touch the plowing surface of the field to drive the machine, and a float that slides on the topsoil surface of the field, a seedling holding stand, and a seedling holding stand that is held on the seedling holding stand. Rice transplanters are known that are equipped with a planting device that includes a planting rod or the like that takes out seedlings and plants them in a field. The conventional rice transplanter mentioned above picks out seedlings one by one from a bacterial group that has been raised in advance and plants them in the field, but in some cases, such transplanting is not performed and the seedlings are directly sown in the field and raised. Therefore, it would be convenient if the rice transplanter could be used for sowing.

The present invention provides a rice transplanter that can be used for tasks other than rice transplanting, such as sowing, and is characterized by the fact that the planting device of the rice transplanter is detachable from the main body. The main feature is that an accessory unit such as a separately provided seeding unit can be attached to the main body from which the planting device has been removed. The embodiments shown in the drawings will be described below.

Figure 1 is a side view of one example of the rice transplanter according to the present invention, in which a unitized planting device B is attached to a hitch 1 provided at the rear of the main body A with bolts 2. It is being The main body A is equipped with a prime mover 3% traveling wheel 4 and a float 5, and the rotational power of the prime mover 3 is transmitted via a pulley 6.7 and a belt 8 to a hydraulic pump rotating shaft 9, and from there, the rotational power is transmitted to a hydraulic pump rotating shaft 9. The power is transmitted to the power transmission shaft 13 via the power transmission shaft 11 and the belt 12. belt 12
is tensioned by a tension pulley 14 which is biased in the direction of arrow X by a spring (not shown). By rotating this tension pulley 14 in the direction opposite to arrow 13 can be cut off. The rotational power transmitted to the transmission shaft 13 is transmitted to the sprocket wheel 16 in the chain case 15 via a transmission device (not shown), and the rotational power is transmitted to the sprocket wheel 16 in the chain case 15. The running wheel 4 is rotated via the sprocket wheel 18.

The chain case 15 is rotatably supported vertically by a support shaft 19, and as shown in FIG. 2, an arm 20 projecting upward is provided near the shaft support. The tip of the arm 20 is connected to the tip of a piston rod 23 of a hydraulic cylinder 22 housed in a bonnet 21 via a connecting rod 24 and a balance rod 25. A pin 26 and a cylinder tube 27 are provided on the outer circumference of the piston rod 23.
A coil spring 28 biased in the extension direction is disposed between the hydraulic cylinder 22 and a hydraulic valve 31 integrated with a hydraulic pump 29 and an oil tank 30 at the fixed end of the hydraulic cylinder 22.
is installed. The hydraulic valve 31 is connected to the front part of the float 5 by a detection rod 32, as shown in FIG. 3, and is configured to adjust the supply of hydraulic pressure to the hydraulic cylinder 22 by vertically rotating the float 5. The rear part of the float 5 is pivotally connected to a support member 33 fixed to the hitch l (P
), and its front end is suspended from the main machine frame 35 by a link 34. When the plowing depth becomes shallow and the ground pressure of the float decreases, the front part of the float 5 descends, causing the detection rod 32 to move downward, causing the piston rod 2 to move downward.
3. Switch the hydraulic valve 31 in the direction of pulling in the oil pressure. This causes the left and right running wheels 4.4 to move upward. vice versa,
When the ground pressure of the float 5 increases, the hydraulic valve 31 is switched via the detection rod 32 in a direction to extend the piston rod 23, and the traveling wheels 4.4 are lowered. A change lever 37 is provided protruding from the rear of the main body A, and the transmission can be changed using this change lever.

The planting device B is attached by bolting the front end of the transmission case 40 to the rear end of the hitch 1 with bolts 2, 2. By loosening -, the entire device can be removed from the main body A as one piece. A drive shaft 36 connected to the transmission of the main body A is housed inside the hitch 1.
Rotational power is transmitted from main body A to planting device B via
Drives the planting rod, reciprocating device, etc. described later. Transmission case 4
A handle 41 is provided at the rear of the handle 4.
1 and the transmission case 40 is disposed a seedling holding stand 43 which is reciprocated by a reciprocating device 42 in a direction perpendicular to the paper plane of FIG.

A planting rod 44 whose tip swings in a roughly elliptical orbit is provided at the lower part of the transmission case 40, and the planting rod 44 swings in a roughly elliptical orbit.
3 Seedlings are taken out one by one from the mat-shaped fungus group placed on top and planted in the field.

FIG. 4 shows a state in which the planting device B has been removed from the main body A of the rice transplanter and a sowing unit C has been attached in its place. Moreover, FIGS. 5 and 6 are enlarged views of the seeding unit. Seed unit C has bolt 2 attached to hit 1 of main body A.
,2. A rectangular cylindrical base frame 50 with a flange 50a fixed by... is provided, and two upper and lower horizontal bars 51 and 52 are provided at the rear end of the base frame 50. Upper horizontal bar 5
Support members 5 that protrude rearward are provided at both ends and the middle part of 1.
3°53' is provided, and the lower horizontal bar 52 has left and right nozzles.
The handle 54.54 is fixed. Upper horizontal bar 510
At both ends, a chain case 55 supported by side support members 53 is disposed at the rear.

A driving wheel 56 is rotatably provided at the lower end of the chain case 55. During seeding work, the driving wheel 56 in contact with the field is rotated by the resistance of the topsoil, and this rotational force is transmitted to a feed-out roll 77, which will be described later, to feed out the seeds.

A large number of protrusions 56a are planted on the outer periphery of the driving shaft 56 to bite into the field. Sprocket wheels 57, 58 and a chain 59 are provided inside the chain case 55, and the rotational movement of the drive shaft 56 is transmitted to the payout roll drive shaft 60 via these. chain case 55
is rotatably supported by a feed-out roll drive shaft 60 passing through the side support member 53 at its upper end, and suspended by a hanging rod 61 at its middle portion. hanging rod 6
1 passes through a support plate 62 that projects diagonally upward from the rear of the support member 53, and is always biased downward by a spring 64 provided between the lower surface of the support plate 62 and the pin 63. A U-shaped connecting portion 61a is provided at the lower end of the hanging rod 61, and is attached to a projecting piece 55a provided on the chain case 55 with a pin 66. A retaining pin 65 is provided at the upper end of the hanging rod 61, and during work, the retaining pin 65 is kept floating above the two sides of the support plate 62, or the field surface is lowered. When the drive shaft 56 descends beyond a certain amount, the retaining pin 65 comes into contact with the upper surface of the support plate 62 to prevent further descent.

A limit switch 67 is provided at the upper end of the hanging rod 61 to detect a descent of the drive wheel 56 by a certain amount or more.

A seeding machine 71 held within the outer case 70 is attached to the support members 53', 53' at the intermediate portion of the horizontal beam 51. That is, a mounting plate 72 projecting laterally is bolted to the channel-shaped support member 53', and a seeding machine 71 and a hopper 73 are secured to this plate by wing nuts 74 and mounting bolts 75, respectively. The seeding machine 71 has a feed roll 77 with a groove 76, and when this is rotated in the direction of arrow Y by the feed roll drive shaft 60,
Seeds housed in the tajik 78 are sequentially thrown into the hopper 73 as they fit into the groove 76f, and are supplied to the field through the pipe 79. Note that two sowing machines 71 are housed in the outer case 70 as a set, and one set of sowing machines 71.71 is driven by one feed-out roll drive shaft 60. In the illustrated example, two such sets are provided in parallel, and a total of four seeding machines are arranged in parallel. Further, the change lever 37 of the main body A is provided in a protruding manner at the intermediate portion of the two pairs of seeding machines.

The left and right handles 54 and 54 are connected to each other by upper and lower horizontal bars 80° and 81. The upper horizontal bar 80 is attached with a display device 84 of a seed fall detection device 83, 83°, etc. installed in a flexible pipe 79 that is a seed flow path, and the lower horizontal bar 81 is equipped with a fork-shaped display device 84. A mounting frame 85.85 is attached. A support shaft 89.89 is fixed to the horizontal frame 86 of the mounting frame 85, and ribs 91.91 of the ground leveling plate 90 are fixed to this. A roughly boat-shaped groove making tool 92.92 is provided in the middle part of the ground leveling plate 90, and the lower end of the pipe 79 is connected to this groove making tool 92.
is fixed inside. Therefore, the seeds are
2, it falls into a groove formed in the field. A protruding arm 93 having a soil covering plate 94 at the rear end is fixed to the rear part of the trench cutting tool 92, so that soil can be covered over seeds that have fallen into the trench in the field. Further, the lower horizontal bar 81 is rotatably provided, and by vertically rotating an operating lever 95 whose lower end is fixed to the horizontal bar 81, the ground leveling plate 90 is rotated in the direction of arrow Z, and the ground leveling plate 90 is rotated in the direction of arrow Z. It is □ so that the angle can be changed.

In the illustrated example, one ground leveling plate 90 is provided for one set of seeding machines 71, 71, and two groove making tools 92 are provided at intervals on one ground leveling plate. In the figure, 96 is a line marker provided on the side of the seeding unit C, which can be raised and lowered by a reno <-97. The lever 97 passes above the seeding machine and extends to the hand side, but when using the marker or pulling up the marker, the lever 97 is extended directly above the supply port of the tank 78 so as not to interfere with replenishing seeds, etc. It is placed in a position to avoid it.

The rice transplanter according to the present invention can be called a paddy field working machine, and since the planting device can be removed from the main body and a separately provided sowing unit can be attached in its place, it can be used not only for transplanting seedlings but also for sowing work. It became possible to do so. It is extremely economical because the main body including the power unit and traveling device is used for both rice transplanting and sowing operations. The main unit is equipped with a control device that raises and lowers the running wheels according to the ground pressure of the float, and work is always done with the soil surface as a reference, so the depth of seeds sown is always constant during sowing work. This is extremely advantageous for uniform germination. Furthermore, the control device always maintains a constant slip condition during running, so that when used for sowing, the distribution of seeds is uniform and the rice grows well. It is also possible to supply granular fertilizer to the field using this seeding unit,
Instead of the above seeding unit, it is also possible to use a fertilization unit suitable for fertilization work by attaching it to the main body A.

[Brief explanation of drawings]

Fig. 1 is a side view of an example of a rice transplanter according to the present invention, Figs. 2(a) and (b) are a plan view and a side view of a running wheel lifting device, respectively, and Fig. 3 is a running wheel lifting device. Fig. 4 is a side view of the sowing unit in use as a seeding device, Fig. 5(a) is a rear view of the seeding unit,
FIG. 5(, b) is a sectional view of the seeding machine, and FIG. 6 is a plan view of the seeding unit. A: Main body, B: Planting device, C: Seeding unit. Torch, 2...Bolt, 3...Motor, 4 Traveling wheel, 5-Float, 15...Chain case, 2
0.7-m, 22... Hydraulic cylinder, 31... Hydraulic valve, 40... Transmission case, 41... Handle, 43...
... Seedling holding stand, 44 ... Planting rod, 50 Base frame, 51.5
2-Horizontal beam, 53.53'...Supporting member, 55...Chain case, 56...Motor wheel, 60...Feeding roll drive shaft, 70...Outer case, 71...Seeding machine, 77
... Feeding roll, 78 ... Tank, 79 ... Pipe, 90 - Leveling plate, 92 ... Grooving tool. Patent applicant: Iseki Agricultural Machinery Co., Ltd. Agent: Patent attorney Hiroshi Sugawara No. 2rM Figure 3

Claims (1)

[Claims] (1) A rice transplanter comprising a planting device equipped with a seedling holding stand and a planting rod at the rear of the main body, which is equipped with a power unit, a float, and running wheels that move up and down according to the ground pressure of the float, A rice transplanter characterized in that the planting device is detachably attached to the main body, and an accessory unit such as a seeding unit manufactured separately can be attached to the main body from which the planting device is removed.