JPH08820Y2 - Auxiliary seedling placement device in rice transplanter - Google Patents

Description

[Detailed Description of the Invention] (b) Industrial field of application The present invention relates to an auxiliary seedling placement device for a rice transplanter, and more specifically, for a riding rice transplanter in which a planting device is connected and supported behind a traveling machine body. The present invention relates to a support structure for an auxiliary seedling stand provided at the rear of the seat.

(B) Conventional technology Recently, passenger rice transplanters have been improved in planting speed by adopting a rotary planting device, etc., but along with this, especially for multi-row planting machines such as 8-row planting. Therefore, the efficiency of seedling assistance work is desired.

Conventionally, passenger rice transplanters have been equipped with an auxiliary seedling stand on the front of the machine on both sides of the engine in order to place a large number of auxiliary seedlings on the machine, and an auxiliary seedling stand on the rear of the machine behind the operation seat. is there.

(C) Problems to be solved by the invention By the way, in the auxiliary seedling stand placed in the front part of the machine,
The operator must carry the seedling dish from the auxiliary seedling stand in the front to the seedling stand in the rear of the machine, which makes the seedling supply work extremely troublesome and forces the operator to overwork.

Also, in the case where the auxiliary seedling stand is fixed to the rear of the aircraft, it is necessary to arrange the auxiliary seedling stand at the rear of the operation seat so that it does not interfere with the seedling stand of the planting device and its elevation.
For this reason, the total length of the rice transplanter becomes long, and the balance between the front and rear of the machine may be deteriorated.

Therefore, the present invention is configured so that the auxiliary seedling stand can be moved in the vertical direction to prevent interference between the auxiliary seedling stand and the seedling stand, and the load of the auxiliary seedling stand acts on the front wheel axle of the traveling machine body. Then, it aims at providing the auxiliary seedling placement apparatus of the rice transplanter which solved the above-mentioned subject.

(D) Means for Solving the Problems The present invention has been made in view of the above-mentioned circumstances, and has, for example, an engine (6) and a driver's seat (9) as shown in FIG. A planting device (11) having a seedling stand (7) and a planting rod (10) can be raised and lowered freely behind a traveling vehicle (5) supported by front wheels (2) and rear wheels (3). In the rice transplanter (1) that is connected and supported, a pillar (39) is fixed to the rear part of the traveling body (5) behind the driver's seat (9), and a connecting means (19) is connected to the pillar (39). The auxiliary seedling stand (12) is movably connected in the up and down direction via the lower limit stopper (13) on the column (39), and the connecting means (19) contacts the lower limit stopper (13). The load acting on the auxiliary seedling base (12) based on the contact is applied to the support column (39), and the base end of the support column (39) is connected to the rear wheel. Characterized in that mounted on the traveling machine body in the machine body front side of the axis (5).

(E) Action Based on the above configuration, the rice transplanter (1) is equipped with a seedling stand (7).
And, the mat seedlings are placed on the auxiliary seedling stand (12), and while the planting device (11) is descended, the seedlings on the seedling stand (7) are planted in the field by the planting rod (10) and run. . And
When the number of mat seedlings on the seedling stand (7) decreases, the auxiliary seedling stand (1
The mat seedling placed in 2) is supplied to the seedling stand (7).

Further, when the rice transplanter (1) turns in the headland, the planting operation is interrupted to raise the planting device (11), and
Also raise the auxiliary seedling stand (12). And planting equipment (11)
The rice transplanter (1) turns while holding the auxiliary seedling stand (12) at the upper limit position.

Further, when the rice transplanter (1) performs the planting work again, the planting device (11) and the auxiliary seedling stand (12) are lowered. Then, the lower limit stopper (13) prevents the auxiliary seedling stand (12) from descending at a predetermined position to support the load of the auxiliary seedling stand (12) in front of the rear wheel axle (77). The rice transplanter (1) performs the planting work while the planting apparatus (11) is further lowered and held in the lowered position.

The reference numerals in parentheses refer to the drawings, but do not limit the configuration in any way.

(F) Embodiment An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the eight-row planting rice transplanter 1 has a traveling machine body 5 supported by a front wheel 2 and a rear wheel 3 having wheels 2b. The engine 6 is mounted on the front part, the mission case 15 is arranged near the rear wheel 3, and is supported by the seat frame 38 fixed to the body frame 25 in the middle part between the front and rear wheels. Driver's seat 9 with seat 20
Is provided. In addition, a wheel cap 2a is bolted to the front wheel 2 to prevent a problem such that the front wheel 2 entraps mud and the like, and the wheel cap 2a is composed of a weight member having a predetermined plate thickness and is attached to the front and rear of the machine body. The weight balance of is adjusted. Further, a planting device 11 is movably supported at the rear of the traveling machine body 5 through a planting elevating link 21, and the planting device 11 has a large number of planting rods 10 composed of rotary planting rods. , A float 22 and a seedling stand 7 on which two mat seedlings can be placed vertically are provided.
An auxiliary plate 7a having a comb tooth-like space provided at equal intervals is fixed to the upper end of the seedling stand 7 so as not to hinder the rear view. Further, a fertilizer tank 23 for paste-like or liquid fertilizer is installed on the left and right in front of the fuselage, and a suction hose 26 supported by a fuselage frame 25 extends from the fertilizer tank 23 toward the rear of the fuselage,
Pump device 30 disposed below the operating seat 20
Is in communication with. Further, the pump device 30 is guided to each fertilizer flow sensor 32 and the switching valve 33 which are installed side by side in the machine lateral direction through the hoses 31 depending on the number of planting lines, and through each hose 35. Nozzle 37 near the planting rod 10
Have been led to.

On the other hand, a link strut 39 is fixedly provided on the front side of the rear axle on the machine body frame 25, and a bracket 39a is fixed to an upper end portion of the link strut 39. Furthermore, the bracket 3
The parallel links 47, 47 are supported by 9a by pins 46, 46 so as to be rotatable in the vertical direction of the machine body, and a support rod 50 is connected by a pin 49 to the tips of the parallel links 47, 47. Further, the lower link 47a of the parallel link is connected with a link 43a forming a connecting link 43 by a pin 45, and the other end of the link 43a is connected by a pin 40 to a frame in the vicinity of the attachment portion of the link support 39. Other Links 43
It is connected to the tip of b via a pin 44. A cover 76 is provided so as to cover the mounting pins 46, 46 of the parallel link 47 to the link strut 39, and the cover 76 is an operating seat.
Used as an elbow rest for an operator sitting on 20. Also,
A lower limit stopper 13 formed by bending a rod-shaped member such as a pipe is fixedly mounted on the link column 39, and the lower limit stopper 13 is fixed to a lower link 47a of the parallel link 47 at a predetermined position at a predetermined position. The link 47a is configured to come into contact therewith to prevent downward movement of the link 47a and to support a load acting on the auxiliary seedling stand 12. Further, a plate 53 is fixedly provided on the link 43b of the connecting link 43,
The lower link 21b of the raising / lowering link 21 for raising / lowering the planting device 11 can be brought into contact with the lower link 21b at a predetermined position. Further, the above-mentioned link support column 39, the connecting link 43, the parallel link 47, and the support rod 50 constitute an up-and-down support link device 19, and the support link device 19 supports the auxiliary seedling stand 12 described below so that it can be moved up and down. obtain.

Further, behind the seat 20 of the driver's seat 9, an auxiliary seedling table 12 having an upper seedling placing table 12a and a lower seedling placing table 12b is arranged, and the auxiliary seedling table 12 has a U-shaped frame 55. ing. The U-shaped frame 55 has an upper frame 55a and a lower frame 55c on which an upper seedling placing table 12a and a lower seedling placing table 12b are installed, and the upper frame 55a and the lower frame 55c are connected to the front side of the machine body. It has a connecting portion frame 55b for opening the rear side of the machine body. Furthermore, the upper stage seedling placing table 12a and the lower stage seedling placing 12b have base rails 60 and 61, respectively, on which the upper seedling plate 56 and the lower seedling plate 57 are slidable in the lateral direction of the machine body. Can support.

On the other hand, a base plate 52 is fixed to the upper end of the support rod 50, and a connecting member 63 is supported on the base plate 52 by a pin 51 so as to be vertically rotatable. The U-shaped frame 55 is slidably supported in the front-rear direction of the machine body by rails.

Further, the upper stage mounting table 12a is supported by a support member 58 fixed to the U-shaped frame 55 by a pin 64 so as to be tiltable in the vertical direction of the machine body, and a roller 59a provided at one end of a tilt adjusting lever 59. Is moved in the front-rear direction of the machine body to hold the seedling placing table 12a at a predetermined inclination angle. The base plate 52 has an inclined portion on the upper front side of the machine body, and when the auxiliary seedling stand 12 is inclined, the U
It is configured to abut the character frame 55.

Further, as shown in FIGS. 2 to 4, extension rails 60a and 60b are respectively supported on the upper base rail 60 and the lower base rail 61 so as to be slidable and fixed in the lateral direction of the machine body. Further, the lower base rail 61 has a pin
A plate 66 is supported by 66a so as to be rotatable in the front-rear direction of the machine body. A fixing release lever 65 is fixed to the plate 66 and is connected to an L-shaped plate 69 via a rod 67. Further, the L-shaped plate 69 is supported rotatably in the left-right direction of the machine body with a pin 69a as a rotation axis, and a pin 69b planted in the L-shaped plate 69 is provided on the connecting member 63. It is configured so that it can be fitted into either one of the cutout portions 63a and 63b. A connecting plate 70 having a lever 54 fixed thereto is supported on the connecting member 63 by a pin 71 so as to be rotatable in the lateral direction of the machine body, and a fixing pin 73 fixed to the connecting plate 70 is attached to the base plate 52. The drilled hole 52a,
It is configured so that it can be fitted to either one of 52b. On the other hand, the lower base rail 61 is provided with a stopper 72, and when the U-shaped frame 55 is held at the aircraft rear position which is the normal holding position, the stopper 72 is provided.
Is configured to prevent the lever 54 from rotating to the right in FIG.

Since the present embodiment has the above-described configuration, the riding rice transplanter 1 has the mat seedlings placed on the seedling stand 7 and the auxiliary seedling stand 12 as shown in FIG. 4 (a). The planting device 11 is lowered and held at the planting work position where the planting depth is automatically given based on the soil pressure acting on the float 22, and the seedlings supplied from the seedling stand 7 are scratched by the planting rod 10. At the same time as collecting and seedling, the paste fertilizer stored in the fertilizer tank 23 is guided to the nozzle 37 near the planting rod 10 by the pump device 30, and the fertilizer is applied along the line by the nozzle 37 to run in the field.

When the mat seedlings on the seedling stand 7 are running low, the operator stops the rice planting machine 1 and holds the planting device 11 in the planting descent position to hold the handle 55d and the fixing release lever shown in FIG. By gripping 65 together, the fixing release lever 65 is tilted forward of the machine body, and the pin 69b planted in the L-shaped plate 69 is removed from the notch portion 63b provided in the connecting member 63.
Then, the handle 55d is pulled out to the front of the machine body, and as shown in FIG. 4 (b), the U-shaped frame 55 is pulled out to the front side of the machine body, and the pin 69b is fitted into the cutout portion 63a. In this state, the lever 54 is rotated leftward to pull out the fixing pin 73 from the hole 52a formed in the base plate 52, and the lever 54
As shown in FIG. 4 (d), the U-shaped frame 55 is rotated upward with the pin 51 as the rotation axis, and the lever 54 is operated to the right of the machine body to lift the fixing pin.
Insert 73 into hole 52b. Then, when the tip of the lower seedling plate 57 of the lower seedling placing table 12b is aligned with the upper end of the seedling placing table 7,
The mat seedlings placed on the lower seedling dish 57 are supplied to the seedling stand 7.
After that, the U-shaped frame 55 of the auxiliary seedling stand 12 is slid rearward of the machine body in a tilted state and fixed at the rearward position.

Then, the planting work is restarted with the mat seedlings supplied on the seedling stand 7. Then, when the mat seedlings on the seedling placing table 7 are reduced again, the operator stops the riding rice transplanter 1 and holds the planting device 11 in the planted state, as shown in FIG. 4 (e). In, the tilt adjustment lever 59 is pulled out to the front of the machine to incline the upper seedling placing table 12a to the rear of the machine, where the tip of the upper seedling plate 56 on the seedling placing table 12a and the upper end of the seedling placing table 7 are aligned, The mat seedlings placed on the upper seedling tray 56 are supplied to the seedling stand 7.

In addition, in FIG. 4 (e), although the auxiliary seedling stand 12 is shown to be lifted by the lifting support link device 19, the mat seedlings are supplied to the seedling stand 7 by placing the planting device 11 at the planting position. It can be performed while holding it, of course, as shown in the figure,
The mat seedlings may be supplied in a state where the planting device 11 is raised and the auxiliary seedling stand 12 is also raised in association with the rise of the planting device.

On the other hand, when the riding rice transplanter 1 turns in the headland, the planting / fertilizing work is interrupted and the planting device 11 is lifted by the action of the planting lifting link 21 based on the operation of the hydraulic actuator. Then, at a position slightly elevated from the position where the automatic planting depth control based on the float 22 is released, that is, at a position where the planting lifting link 21 is substantially parallel to the field scene, the planting is performed. The lower link 21b of the lifting link 21 is a plate 53 provided on the link 43 of the lifting support link device.
And push it up, and as shown in FIG. 4 (c),
The raising / lowering support link device 19 operates upward in association with the raising of the planting device 11, and the auxiliary seedling stand 12 rises. And planting equipment
11 and the auxiliary seedling stand 12 rise to the upper limit position while keeping a constant distance, and the passenger rice transplanter 1 turns in this state.

Further, when the riding rice transplanter 1 performs the planting / fertilizing work again, the planting lifting link is operated based on the operation of the hydraulic actuator.
21 is operated to lower the planting device 11, and the auxiliary seedling stand
12 descends under its own weight. Then, at a position where the planted lifting link 21 is substantially parallel to the field scene, the lower links 47a of the parallel links 47, 47 constituting the lifting support link device 19 contact the lower limit stopper 13 to lift the lifting support link. The downward movement of the device 19 is blocked and the auxiliary seedling stand 12 is held in the lowered position. In this case, since the lower limit stopper 13 is composed of a rod-shaped member extending parallel to the link 47a that constitutes the connecting means 19, the link 47a can be supported in a saddle-like manner over a predetermined length. The auxiliary seedling stand 12 can be stably supported even if vibration of the machine body occurs during planting work. And
The planting device 11 continues to descend and is held at the planting work position, and the riding rice transplanter 1 carries out planting and fertilizing work in this state.
At this time, the weight of the auxiliary seedling stand 12 is the support rod 50 and the parallel link 47.
And the lower limit stopper 13 to act on the link strut 39, and the frame mounting position of the strut 39 is located in front of the rear axle 77, so that the strut 39 acts on a position close to the center of gravity of the machine body 5 to balance the front and rear of the machine body. It can be held well.

Further, since the cover 76 covers the portion of the upper end portion of the support column 39 that connects the connecting means 19, it is possible to prevent accidents such as clothes of the operator being caught in the connecting portion, and the cover 76. Since it can be used as an elbow pad, it has an effect of facilitating the driving posture and preventing the operator from falling sideways from the seat 20.

In addition, in the present embodiment, the raising of the auxiliary seedling stand 12 is configured to interlock with the raising of the planting device 11, but it is also possible to raise the auxiliary seedling stand 12 independently by another drive device. . In addition, although the present embodiment has been described as being applied to the 8-row planting rice transplanter, the present invention is not limited to this, and 6-row planting, 4
Of course, it may be applied to riding rice transplanters such as row planting.

(G) Effect of the Invention As described above, according to the present invention, the auxiliary seedling stand (12) arranged at the rear of the traveling body (5) is movably supported in the vertical direction, so that the auxiliary seedling stand (12) is provided at the rear. Place
Although many auxiliary seedlings can be placed on the machine, the total length of the rice transplanter (1) can be shortened by preventing interference between the auxiliary seedlings (12) and the seedling stand (7). , The turning radius can be reduced to reduce the headland, and the auxiliary seedling stand (12) and the planting device (11) can be placed close to the center of gravity of the machine to maintain good front-rear balance of the machine. The system can also be improved.

Furthermore, the load acting on the auxiliary seedling stand (12) acts on the front side of the rear wheel axle (77) of the traveling vehicle body (5) via the connecting means (19), the lower limit stopper (13) and the column (39). , Even if the amount of auxiliary seedlings placed on the auxiliary seedling stand (12) is different and the above-mentioned load changes, the balance between the front and rear of the machine can be maintained approximately constant, and good planting accuracy can be maintained. You can

[Brief description of drawings]

FIG. 1 is an overall side view showing a riding rice transplanter to which the auxiliary seedling placing device according to the present invention is applied, FIG. 2 is a plan view of the auxiliary seedling placing device according to the present invention, and FIG. 4A is a side view showing the auxiliary seedling stand in a lowered position, FIG. 4B is a side view showing the U-shaped frame pulled out in the lowered position, and FIG. A side view showing a state in the raised position, (d) a side view showing a state in which the U-shaped frame is tilted in the lowered position,
(E) is a side view showing a state in which the U-shaped frame is tilted and the upper-stage seedling placement table is tilted in the raised position. 1 ... rice transplanter (passenger rice transplanter), 2 ... front wheels, 3 ... rear wheels, 5 ... running vehicle, 6 ... engine, 7 ... seedling stand, 9 ... driver's seat, 10 ... planting Attaching rod, 11 …… planting device, 12
…… Auxiliary seedling stand, 13 …… Lower limit stopper, 19 …… Coupling means (elevation support link device), 39 …… Post (link post),
77 ... Axle.

Claims (1)

[Scope of utility model registration request] 1. A planting device having a seedling stand and a planting rod is movably connected and supported behind a traveling machine body having an engine and a driver's seat and supported by front wheels and rear wheels. In the rice transplanter, a pillar is fixed to the rear part of the traveling machine body behind the driver's seat, and an auxiliary seedling stand is movably connected to the pillar via a connecting means, and a lower limit stopper is installed on the pillar. Then, the load acting on the auxiliary seedling base on the basis of the connecting means coming into contact with the lower limit stopper is applied to the pillar,
An auxiliary seedling placement device in a rice transplanter, characterized in that the base ends of the columns are attached to the traveling machine body on the front side of the machine body of the rear wheels.