JPH0737460Y2 - 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 supply 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 case of the auxiliary seedling table arranged in the front part of the machine, the operator must carry the seedling plate from the front auxiliary seedling table to the seedling stand behind the machine one by one. The seedling supply work is extremely troublesome, and the operator is forced to overwork.

In addition, if the auxiliary seedling stand is fixed to the rear of the machine, 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. There is a risk that the overall length of the machine will become longer and the balance between the front and rear of the machine will become poor.

Therefore, an object of the present invention is to provide an auxiliary seedling placement device for a rice transplanter that supports an auxiliary seedling stand in the rear part of the traveling machine body via a lifting support link device so as to be able to move up and down freely. It is a thing.

(D) Means for Solving the Problems The present invention has been made in view of the above circumstances, and has, for example, an engine (6) and a driver's seat (9) as shown in FIG. Behind the traveling body (5) supported by the wheels (2) and (3), a planting device (11) having a seedling stand (7) and a planting rod (10) is provided with a planting lifting link ( twenty one)
In a rice transplanter (1) which is connected and supported so as to be able to move up and down via an auxiliary seedling stand (12) via a lifting support link device (19) at the rear of the traveling machine body (5) behind the driver's seat (9). )
And a supporting rod (50) for supporting the supporting pillar (39), which is provided upright on the traveling machine body (5), and supports the auxiliary seedling stand (12). Posts (39)
And a parallel link (47) for connecting the support rod (50), and a connecting link (43) for connecting one side of the parallel link (47) and the planting lifting link (21).

(E) Action Based on the above configuration, the rice transplanter (1) places the mat seedlings on the seedling stand (7) and the auxiliary seedling stand (12), and lowers the planting device (11). The planting rod (10) is used to plant the seedlings on the seedling stand (7) in the field for running. When the number of mat seedlings on the seedling stand (7) decreases, the auxiliary seedling stand (12)
The mat seedlings placed on the seedlings are supplied to the seedling stand (7).

Further, when the rice transplanter (1) turns in the headland, the planting work is interrupted, the planting elevating link (21) is moved upward, and the planting device (11) is raised. The interlocking link (43) constituting the ascending / descending support link device (19) operates upward in conjunction with the ascent of 11). Then, the auxiliary seedling (12) is moved up by operating above the support rod (50) via the parallel link (47), and thereby the planting device (11) and the auxiliary seedling (12).
The rice transplanter (1) makes a turn while holding the above position.

Furthermore, when the rice transplanter (1) performs the planting work again, when the planting lifting link (21) is moved downward and the planting device (11) is lowered,
The linking link (43) constituting the lifting support link device (19) operates downward in conjunction with the lowering of the planting device (11), and the parallel link (47) and the support rod (50) accordingly. Operate downward to lower the auxiliary seedling stand (12) and restart planting work.

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 via a planting elevating link 21, and the planting device 11 includes 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 of the front of the fuselage, and a suction hose 26 supported by the 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, it is guided from the pump device 30 to each fertilizer flow sensor 32 and switching valve 33, which are installed side by side in the lateral direction of the machine body, through the hoses 31 ... Nozzle 37 near the planting rod 10
Have been led to.

On the other hand, a link support 39 is fixed to the machine frame 25, and a bracket 39a is fixed to the upper end of the link support 39. Further, the bracket 39a has pins 46, 46
The parallel links 47, 47 are rotatably supported by the machine body in the vertical direction, and the pin 4 is attached to the tip of the parallel links 47, 47.
A support rod 50 is connected by 9. The lower link 47a of the parallel link has a link 4 that constitutes a link link 43.
3a is connected by a pin 45, and the other end of the link 43a is pinned to the frame near the attachment part of the link support post 39.
Pin 44 at the end of the other link 43b connected by 40
Are connected via. Further, the link support column 39 has a lower limit stopper formed by bending a rod-shaped member such as a pipe.
13 is fixed, the lower limit stopper 13 abuts the lower link 47a of the parallel links 47, 47 at a predetermined position for a predetermined length to prevent the link 47a from moving downward and It is configured to support the load acting on the seedling stand 12. Furthermore, the link 43b of the connection link 43
A plate 53 is fixedly mounted on the plate 53 and is configured so as to come into contact with the lower link 21b of the planting lifting link 21 that lifts the planting device 11 at a predetermined position. Further, the above-mentioned link support column 39, the connecting link 43, the parallel links 47, 47 and the support rod 50 constitute an elevation support link device 19, and the support link device 19 enables the auxiliary seedling stand 12 to be raised and lowered freely. Can support.

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. Further, the upper seedling placing table 12a and the lower seedling placing table 12b have base rails 60 and 61, respectively, and an upper seedling tray 56 and a lower seedling tray 57 are respectively slidable in the lateral direction of the machine body on these base rails. 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 on the 63 by a rail in the longitudinal direction of the machine body.

In addition, the upper seedling placing 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 machine longitudinal direction, and a roller provided at one end of a tilt adjusting lever 59. 59a is moved in the longitudinal direction of the machine so that the seedling placing table 12a can be held 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 for the upper base rail 60 and the lower base rail 61, respectively.
60a and 60b are supported so as to be slidable in the lateral direction of the machine body and fixed. Further, a plate 66 is supported on the lower base rail 61 by a pin 66a so as to be rotatable in the longitudinal direction of the machine body. A fixing release lever 65 is fixed to the plate 66, and an L-shape is provided via a rod 67. It is connected to the plate 69. Further, the L-shaped plate 69 is supported rotatably in the lateral direction of the machine body with the pin 69a as a rotation axis, and the L-shaped plate 69 is also rotatable.
The pin 69b implanted in the 69 is configured to fit into either one of the cutout portions 63a and 63b provided in the connecting member 63. A connecting plate 70, to which the lever 54 is fixed, 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. It is configured so that it can be fitted into either one of the bored holes 52a and 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 rear position of the machine body which is a normal holding position, the stopper 72 moves to the right of the lever 54 in the drawing. It is configured to prevent rotation.

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 to hold the planting work position where the planting depth is automatically controlled 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. Notch part provided in the connecting member 63 by grasping 65 together and tilting the fixing release lever 65 forward of the machine body.
The pin 69b planted on the L-shaped plate 69 is removed from 63b. 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, with the mat seedlings supplied on the seedling stand 7,
Planting work is resumed. 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). Then, the tilt adjusting lever 59 is pulled out to the front of the machine to incline the upper seedling placing table 12a toward the rear of the machine, and the tip of the upper seedling plate 56 on the seedling placing table 12a and the seedling placing stand 7
The mat seedling placed on the upper seedling tray 56 is supplied to the seedling placing table 7 when the upper end portion is aligned.

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. The mat seedlings can be supplied while the planting device 11 is raised as shown in the figure, and the auxiliary seedling stand 12 is also raised in association with the raising of the planting device as shown in the figure. You may.

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 elevating link 21 is a plate 53 provided on the connecting link 43 of the elevating support link device 19.
Then, as shown in FIG. 4C, the lifting support link device 19 is interlocked with the lifting of the planting device 11.
Moves upward, and the auxiliary seedling stand 12 rises. Then, the planting device 11 and the auxiliary seedling stand 12 are raised to the upper limit position while keeping a constant interval, and the riding rice transplanter 1 turns in this state.
At this time, the auxiliary seedling stand 12 is maintained in a parallel state by the parallel link 47 and smoothly rises without causing a squirrel like a nesting type slide device.

Furthermore, when the riding rice transplanter 1 performs planting / fertilization work again,
Based on the operation of the hydraulic actuator, the raising / lowering link 21 is operated to lower the planting device 11, and the auxiliary seedling stand 12 is lowered by its own weight. Then, at the position where the planted lifting link 21 is substantially parallel to the field scene, the lifting support link device 19
The lower links 47a of the parallel links 47, 47 forming the above structure contact the lower limit stopper 13 to prevent downward movement of the lifting support link device 19 and hold the auxiliary seedling stand 12 in the lowered position. Then, 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 as well, the auxiliary seedling stand 12 similarly descends smoothly by the parallel link 47.

Further, the length of the parallel link 47, the connection point 45 between the connecting link 43a and the parallel link 47 and the length of the other connecting link 43b are appropriately set, and the elevation amount of the planting device 11 and the auxiliary seedling 12 It is set to match the amount of vertical movement. Therefore, the planting device
The tip of the seedling plate 56.57 of the auxiliary seedling stand 12 can be aligned with the upper end of the seedling stand 7 in any of the raised positions of 11.

In addition, in this example, although what was applied to the 8 row planting rice transplanter was demonstrated, it is not limited to this, 6 row planting,
Of course, it may be applied to a riding rice transplanter such as 4-row planting.

(G) Effect of the Invention As described above, according to the present invention, the traveling body (5)
Auxiliary seedling stand (12) at the rear, via lifting support link (19)
Since it was able to mount many auxiliary seedlings on the aircraft by arranging the auxiliary seedling stand (12) in the rear, the auxiliary seedling of the auxiliary seedling stand (12) and the seedling stand (7) The rice transplanter (1) can be configured to have a shorter overall length, the turning radius can be reduced to reduce the headland, and the auxiliary seedling stand (12) and the planting device (11) can be brought closer to the center of gravity of the machine. It is possible to maintain good front-rear balance of the machine body and improve the planting accuracy.

Further, since the lifting support link device (19) is composed of the support column (39), the support rod (50), the parallel link (47) and the linking link (43), the vertical movement of the auxiliary seedling stand (12) causes bending. The auxiliary seedling stand can be smoothly moved up and down, and the auxiliary seedling stand (12) can be arranged so as to project rearward from the column (39) by the parallel link (47).
The elevating link (21) for the planting device (11) can be disposed below the plant to use the space without waste.

Furthermore, since the auxiliary seedling stand (12) is interlocked with the raising / lowering link (21) with a plant via the linking link (43) and moves up and down in conjunction with the elevation of the planting device (11), The auxiliary seedlings can be supplied from the auxiliary seedling stand (12) to the seedling stand (7) in a substantially constant posture regardless of the vertical position, and the auxiliary seedling supply work can be performed easily and quickly.

Further, the link ratio is adjusted by changing the contact point of the linking link (43) with the planting lifting link (21), the connection point with the parallel link (47), etc., and lifting of the planting device (11). The vertical movement of the auxiliary seedling table (12) can be freely changed, and the upper limit height of the auxiliary seedling table (12) and the supply height of the auxiliary seedling to the seedling stand can be easily set. .

In particular, if the ratio of the vertical movement of the planting device (11) and the vertical movement of the auxiliary seedling stand (12) is set to 1: 1 regardless of the height of the seedling stand (7), the auxiliary seedling stand (12) is always at a fixed position with respect to the seedling stand (7), and seedlings can be easily supplied.

[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 …… wheels (front wheels), 3
…… Wheels (rear wheels), 5 …… Traffic aircraft, 6 …… Engine,
7 ... Seedling support, 9 ... Driver's seat, 10 ... Planting rod, 11 ...
Planting device, 12 …… Auxiliary seedling stand, 19 …… Lifting support link device, 21 …… Planting lifting link, 39 …… Post, 43 …… Connecting link, 47 …… Parallel link, 50 …… Support rod.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-57-202215 (JP, A) JP-A-54-141220 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A planting apparatus having a seedling stand and a planting rod is connected to the rear of a traveling machine body having an engine and a driver's seat and supported by wheels so as to be able to move up and down through a planting elevating link. -In the rice transplanter that is supported, at the rear of the traveling body behind the driver's seat, an auxiliary seedling stand is supported via an elevating support link device, and the elevating support link device is a pillar that is erected on the traveling body. In the rice transplanter, a pillar rod supporting the auxiliary seedling stand, a parallel link connecting the pillar and the supporting rod, and a connecting link connecting one of the parallel links and the planting lifting link to each other are provided. Auxiliary seedling placement device.