JPH089723A - Rice transplanter - Google Patents

Abstract

PURPOSE:To provide a rice transplanter equipped with a,seedling planting unit capable of being separated without obstruction by a fertilizing system for a grading float at the transversally niddle position and housed by changing the posture. CONSTITUTION:This rice transplanter is equipped with a seedling planting unit separable freely to two equal subunits corresponding to left and right planting rows and designed so that the posture may be freely changed from a separated housing posture to a non-separated working posture. A grading float for double-row grading at the transversally middle position of the seedling planting unit is supported on the side of one separated subunit. A hose for sending a fertilizer from the other separated subunit to the grading float and a furrow opener 19 are formed integrally so as to be free to separate from the grading float. The separable connector unit therefor has 3 structure of an engagement unit (B) composed of a rod and a hole part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanter, and more particularly to improvement of a seedling planting device.

[0002]

2. Description of the Related Art A seedling planting device connected to a rice transplanter is a seedling platform on which mat-shaped seedlings are placed, and a planting arm for cutting one seedling from the bottom end of the mat-shaped seedlings and planting it in a field. , A plurality of ground leveling floats, and a transmission system for driving them, etc., and conventionally, in a seedling planting device for multi-row planting such as 8-row planting, the dimension in the lateral width direction is large, and Since it is a form that projects greatly in the direction, when traveling on the road etc. during non-working, the seedling planting device is temporarily separated from the machine body, and the posture of this seedling planting device is rotated by 90 degrees ( The lateral direction is set to the front-back direction of the machine body, and the lateral end of this seedling planting apparatus is connected to the machine body and pulled to reduce the lateral extension of the planting machine from the machine body.

In addition, even when a truck is used when the rice transplanter is moved, the seedling planting device is often separated from the machine body so as to fit within the width of the bed.

[0004]

As described above, the work of changing the posture of the seedling planting device and connecting it to the machine body is not only time-consuming, but also requires time and labor, and thus there is room for improvement. For the purpose of eliminating this inconvenience, for example, the seedling planting device is divided into two equally in units of planting strips, and the divided products are connected to each other via link members so that the posture can be freely changed. It is also conceivable that the storage posture can be freely changed to reduce the amount of overhang in the lateral direction.

Further, in the conventional seedling planting apparatus, a hopper for storing fertilizer, a hose for feeding fertilizer from the hopper, and a hose so that fertilizing work for feeding fertilizer to the bottom of the field at the same time as seedling planting work can be performed It is equipped with a fertilizer applicator that has a grooving device or the like that feeds fertilizer from the field under the field. The grooving device is attached to the leveling float so as to supply fertilizer near the seedling planting position.

Further, in the conventional rice transplanters, a leveling float for two-row leveling is arranged at the central position in the left-right direction of the seedling planting device so that the level of the seedling planting device against the field is kept constant.
It is equipped with an automatic lifting system that raises and lowers the seedling planting device based on changes in the ground level of the ground leveling float, and the ground leveling float thus arranged at the central position is divided into two and stored as described above. In this case, this leveled float is supported on one side of the divided parts of the seedling planting device. However, when the seedling planting device is equally divided into two, the fertilizer applying device is also equally divided into two, so that for the leveled float at the center position, a split operation can be performed with a hose or the like to which fertilizer is supplied from the left and right fertilizer applying devices. It will be hindered and appropriate measures for improvement will be desired.

An object of the present invention is to arrange a leveled float at a central position in the left-right direction, divide a seedling planting device equipped with a fertilizer application into equal parts, and reasonably switch them to a storage posture to move them laterally. The point is to construct a rice transplanter that can reduce the amount of overhang.

[0008]

A feature of the present invention is that a seedling planting device configured for planting a plurality of rows is configured to be freely split into two splits in units of planting strips that are equal to each other on the left and right, and the splits are also provided. By changing the posture, it can be switched between a retracted posture that reduces the amount of overhang in the lateral direction of the aircraft and a work posture that does not divide, and the center in the left-right direction among the multiple ground floats equipped with this seedling planting device. The two-level ground leveling position is supported on the side of one of the divided parts, and the ground leveling float is provided with a grooving device to which fertilizer is fed from the side of the other divided part through a hose to the leveling float. In addition, the grooving device is detachably provided to the ground level float in the central position through a hole formed in one side with a protruding part formed in the other side, or with an engagement / disengagement part that determines the position by inserting into a recess. And its action and effect It is as follows.

[0009]

According to the above feature, when the seedling planting device is switched to the retracted posture, the seedling planting device is divided and the posture of the divided object is changed, so that the center ground leveling float in the left-right direction becomes one. By separating the grooving device with the hose that feeds fertilizer from the split on the other side to this leveling float, it becomes a form supported by the split on the side , It becomes possible to separate each split into a large amount, and by setting the splits of the seedling planting device in a predetermined storage posture in this state, the amount of overhanging of the seedling planting device in the lateral direction of the machine is reduced. Becomes

That is, in the present invention, even if the leveling float is arranged at the central position in the left-right direction like the conventional rice transplanter and this leveling float is also used as the sensor of the automatic lifting system of the seedling planting device, Even if it is equipped with a system for supplying fertilizer from the left and right divided objects side to this leveled float via hoses for fertilizer application, the posture of the divided objects can be changed without being obstructed by the fertilizer application system. Since the grooving device is provided for the float via the engagement / disengagement portion, the separating operation is relatively easy, and the position can be accurately determined by the engagement / disengagement structure even when mounted.

[0011]

Therefore, the leveling float is arranged at the center position in the left-right direction, the seedling planting device equipped with the fertilizer application device is equally divided, and the device is rationally switched to the retracted posture by the easy operation to move in the left-right direction of the machine body. The rice transplanter was constructed to reduce the amount of overhang.

In particular, in the present invention, since the hose and the grooving device are separated from the leveling float in a connected state, the grooving device and the hose maintain the communication state even when the grooving device is separated from the leveling float. As compared with the case where the hose and the grooving device are separated from each other, there is an effect that the guide path of the fertilizer can be maintained in a good state.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, an engine 4 is mounted on the front part of a traveling machine body 3 having a steering-operated drive-type front wheel 1 and a drive-type rear wheel 2, and a central portion of the traveling machine body 3 is mounted. The driver's seat 5 is disposed in the vehicle, and the seedling planting apparatus A is connected to the rear end of the traveling machine body 3 via the link mechanism 7 that is driven up and down by the lifting cylinder 6 to form a riding-type rice transplanter.

On the right side of the driver's seat 5, there is provided an elevator lever 8 for controlling the raising and lowering of the seedling planting device A and the operation of opening and closing a planting clutch (not shown), and on the left side of the driver's seat 5. Is equipped with a shift lever 9. In addition, the planting clutch connects and disconnects the power from the traveling machine body 3 to the seedling planting device A,
The cutting operation is allowed only when the transmission shaft is in a predetermined rotation phase to prevent the cutting operation in a posture in which the tip of the planting arm (described later) comes into contact with the field.

The seedling planting device A is transmitted through a seedling mount 10 on which a mat-shaped seedling W is placed, a pair of left and right transmission cases 11 to which power is transmitted from the traveling machine body 3, and a transmission case 11 through a chain case 12. A rotary case 13 that rotates by power, a pair of planting arms 14 provided in pairs on the rotary case 13, and five leveling floats 15 each are configured for eight-row planting, and are placed on the seedling placing table 10 during work. From the lower end of the mat-like seedling W, the planting arm 14 cuts out the seedlings one by one, and is planted in a field scene.

The five leveling floats 15 are shown in FIG.
As shown in FIG. 3 and FIG. 3, the center position in the left-right direction, each of the both side positions are configured for two-row leveling, and the left and right side end positions are configured for one-row leveling. As shown in FIG. 6, the seedling planting device A has a hopper 1 for storing fertilizer.
6, feeding mechanism 17 for feeding fertilizer from hopper 16,
Hose 18 for sending fertilizer from feeding mechanism 17, hose 1
Equipped with fertilizer applicator consisting of each grooving device 19 for feeding the fertilizer from 8 under the field near the planted seedling, the grooving device 19 is the rear end of the grooving plate 20 fixed to the lower surface of the leveling float 15. It is provided so as to be separable via the engaging / disengaging portion B.

In this rice transplanter, the seedling planting device A is divided into four sections, and the posture of the split product of the seedling planting device A is changed by swinging the link member supporting the split product. It is configured so that it can be freely switched between a retracted posture in which the amount of lateral extension of the machine body is reduced and a work posture in which no division is performed.

That is, as shown in FIGS. 7 and 8, the first bracket 22 formed on both sides of the elevating frame 21 connected to the rear end of the link mechanism 7 has the first supporting shaft having the longitudinal axis. A first arm 24 is swingably connected around a shaft 23, and a second arm 26 is swingably connected to a swing end of the first arm 24 about a second support shaft 25 having a longitudinal axis. A second bracket 29 formed on left and right planting frames 28, 28 is swingably connected to a swing end of the second arm 26 about a third support shaft 27 having a vertically oriented axis.

In the planting frame 28, the seedling placing table 10A which is divided into four sections, the hopper 16 for fertilization which is divided into four sections, the leveling float 15, and the left and right transmission cases 11 are provided. The power from the output shaft 30 that is supported and to which the power from the traveling machine body 3 is transmitted is transmitted via the bevel case 31, the pair of transmission shafts 32, 32 to the left and right transmission cases 11,
It is transmitted to 11.

As shown in FIG. 2, one of the five leveling floats 15 (hereinafter referred to as leveling float 15C) arranged at the central position in the left-right direction is on the side of one (the right side in the drawing) divided object. Supported by this ground level float 15
Since the hoses 18 from the system of the left and right hoppers 16 are connected to the vicinity of the left and right seedling planting positions of C respectively, the grooving device 19 is grounded together with the hoses 18 from the other (left side in the drawing) split. The float 15C is separable from the float 15C so that the dividing operation of the seedling planting apparatus A can be performed without being hindered by the hose 18. The leveling float 15C at the central position detects the level of the seedling planting device A for the field and drives the lifting cylinder 6 to drive the seedling planting device A.
Is also used as a sensor for maintaining a predetermined level for the field scene (the control system is not described in detail).

As shown in FIGS. 3 to 6, a pair of upper and lower plate-like brackets 3 projecting forward are provided on the front surface of the grooving device 19.
3 and 33 are fixedly mounted, and plate members 34 and 34 are fixedly mounted on both left and right side surfaces of these brackets 33 and 33, respectively, and through holes 3 that vertically penetrate through the upper and lower brackets 33 and 33, respectively.
3A and 33A are bored, and the extending end of the lower bracket 33 is bent downward to form a holding piece 33B. Further, a block portion 20A protruding upward is formed at the rear end of the groove plate 20, and the block portion 20A is formed.
A vertically oriented rod 35 having an engaging hole 35A in a posture orthogonal to the axis is fixedly provided on the upper surface of the rod 35.

Then, the grooving device 19 is used as a leveling float 1
5, the through holes 33A, 33A of the brackets 33, 33 are inserted through the rod 35, the grooving device 19 is moved downward, and the holding piece is held in the concave portion 20B on the front surface of the block portion 20A. 33B is engaged, the side surface of the block portion 20A is sandwiched between the plate members 34, 34, and the rod 35
By inserting and fixing the beta pin 36 into the engaging hole 35A, the grooving device 19 is mounted and fixed to the leveling float 15C via the grooving plate 20 as shown in FIG.
In addition, in this attaching / detaching means, a pair of bracket 33 and rod 3
5, the engaging / disengaging portion B is configured, and when the grooving device 19 is separated from the leveling float 15C, the beta pin 3 is reversed, contrary to the above.
6 can be removed, and the groove making device 20 can be separated by pulling it up.

Incidentally, the grooving device 19 is manufactured by bending a plate-shaped metal, the bracket 33 is fixed by welding, and the lower end front part of the resin bellows part 37 attached to the hose 18 is formed. Is engaged with the front surface of the grooving device 19, and the rear end of the lower end of the bellows portion 37 and the grooving device 19 are screwed.
It is fixed at. Further, the groove plate 20 is formed of resin, and the rod 35 is inserted into a hole formed in the vertical direction in the block portion 20A at the rear end, so that the plurality of screws 39 inserted from the rear end of the block portion 20A. The rod is fixed to the groove plate by screwing.

As described above, the posture of the divided parts of the seedling planting device A is changed by the swinging link system such as the first and second arms 24 and 26 so as to reduce the amount of lateral extension of the body by changing the posture. Further, when the grooving device 19 of the leveling float 15 at the central position is configured to be separable, when the seedling planting apparatus A is switched from the working posture shown in FIG. After separating the grooving device from 30 and separating the grooving device from the leveling float 15C, each divided product can be separated as shown in FIG. 10 by manually pulling out the divided product to the left and right.

Next, by artificially rotating the inner side of the seedling planting apparatus A to a posture toward the rear of the machine, the seedling planting apparatus A is switched to the storage posture as shown in FIGS. 11 and 12.

In order to restore the seedling planting device A which has been switched to the retracted posture to the working posture, the swinging link system is operated in the reverse direction so that the bevel case 31 is connected to the output shaft 30 and the groove making device 19 is operated. Is connected to the leveling float 15C.

[Other Embodiments] In addition to the above embodiments, the present invention is
It is also possible to configure as follows.

(A) As shown in FIGS. 13 to 15, a vertical rod 40 is projected downward on a plate-like bracket 39 formed to project forward with respect to the front surface of the groove making device 19. The bracket 40 is fixedly provided with plate members on both left and right side surfaces, and the extending end of the bracket 39 is bent downward to form a holding piece 39A.
The vertical groove 20C through which the rod 40 is inserted is bored on the upper surface of the block portion 20A of No. 0, and the concave portion 20B that engages and disengages with the holding piece 39A is formed on the front surface of the block 20A. Compose means to allow separation. In the same figure, the engagement / disengagement portion B is constituted by the rod 40 and the hole portion 29C.

(B) As shown in FIGS. 16 and 17, a pair of rods 41 are fixedly mounted so as to project forward with respect to the front surface of the grooving device 19, and a hole portion 20 through which the rods 41 are inserted.
C is formed in a front-back direction posture with respect to the rear surface of the 20-grooving plate to constitute a means for permitting separation of the grooving device 19. In the figure, the engagement / disengagement portion B is constituted by the rod 41 and the hole portion 20C.

(C) In the another embodiment described above, the groove making machine 1
A thumbscrew may be used to ensure the fixation of 9.

(D) Applicable to a seedling planting device having 8 or less articles or 8 or more articles.

It should be noted that although reference numerals are given in the claims for convenience of comparison with the drawings, the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

[Figure 1] Overall side view of rice transplanter

FIG. 2 is a schematic view showing the arrangement of a fertilizer application device and a leveling float.

FIG. 3 is a side view of a connecting portion of the groove making device.

FIG. 4 is an exploded perspective view of a groover connecting structure.

[Fig. 5] Vertical side view of the groove making machine

FIG. 6 is a cross-sectional plan view of the connecting portion of the groove making machine.

FIG. 7 is a schematic plan view of the transmission system of the seedling planting device.

FIG. 8 is a schematic plan view of a transmission system and the like of the seedling planting device in a stored posture.

[Fig. 9] Plan view of the rice transplanter with the seedling planting device set in the working posture

FIG. 10: Plan view of the rice transplanter with the seedling planting device separated

FIG. 11 is a plan view of the rice transplanter with the seedling planting device set in the retracted posture.

FIG. 12 is a rear view of the seedling planting device set to the retracted posture.

FIG. 13 is an exploded perspective view of a groover coupling structure according to another embodiment (a).

FIG. 14 is a vertical cross-sectional side view of the groove making device of another embodiment (a).

FIG. 15 is a cross-sectional plan view of the connecting portion of the groove making device of another embodiment (a).

FIG. 16 is an exploded cross-sectional view of the connection structure of the groove making device of another embodiment (b).

FIG. 17 is a cross-sectional plan view of a groover coupling structure according to another embodiment (b).

[Explanation of Codes] 15 Leveling Float 15C Leveling Float at Central Position 18 Hose 19 Grooving Device A Seedling Planting Device B Disengagement Part

Claims (1)

[Claims] 1. A seedling planting device (A) configured for multiple-row planting is configured to be freely split into two splits in units of planting strips that are equal to each other on the left and right, and by changing the posture of the splits, the machine lateral direction This seedling planting device (A) is configured to be freely switchable between a storage posture that reduces the amount of overhang to the
Among the plurality of ground leveling floats (15) provided for, one for two-level ground leveling (15C) at the central position in the left-right direction is supported on one divided object side, and the other ground leveling float (15C) is The ground leveling float (15C) is provided with a grooving device (19) to which fertilizer is fed from the side of the divided object through a hose (18), and the grooving device (19) is located at the central position of the leveling float (15C). On the other hand, a rice transplanter equipped with a protruding portion formed on one side and a hole portion formed on the other side, or a disengagement portion (B) whose position is determined by inserting into a recessed portion so as to be separable.