JP2508804Y2 - Auxiliary seedling placement device in rice transplanter - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial Application Field The present invention relates to an auxiliary seedling placement device in a rice transplanter, and more specifically, to a riding rice transplanter in which a planting device is connected and supported behind a traveling machine body. This relates to the structure of the 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 and so on. Therefore, the efficiency of seedling supply work is desired.

In the past, riding rice transplanters have auxiliary seedlings placed on the front of the aircraft on both sides of the engine to place many auxiliary seedlings on the aircraft, and an auxiliary seedling on the rear of the aircraft behind the driver's seat. There is.

(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.

In addition, if the auxiliary seedlings are fixed to the rear of the machine, it is necessary to arrange them so that the upper end of the seedling stand and the tip of the seedling plate on the auxiliary seedlings are close to each other when supplying the auxiliary seedlings. May become longer and the balance between the front and the rear of the aircraft may become poor.

Therefore, an object of the present invention is to provide an auxiliary seedling placing device in a rice transplanter in which the frame of the auxiliary seedling stand is configured to be slidable in the machine front-rear direction and thus solves the above-mentioned problems.

(D) Means for Solving the Problems The present invention has been made in view of the above circumstances, and for example, referring to FIG. 1, a traveling body having an engine (6) and a driver's seat (9). A rice transplanter (1) in which a planting device (11) having a seedling stand (7) and a planting rod (10) is connected to and supported by an elevating link (21) so that it can be moved up and down behind (5). A support link device (19) connected to a rear portion of the traveling machine body (5) so as to be able to move up and down, a base plate (52) fixed to a tip end portion of the support link device (19), and the base plate (52). ), And a frame (55) supported so as to be slidable and tiltable in the longitudinal direction of the machine body.
An auxiliary seedling stand (12) can be placed on 5), and the support link device (19) and the elevating link (21) are brought into contact with each other by raising and lowering the elevating link (21) to a predetermined position to interlock with each other. It is configured to move up and down.

(E) Operation Based on the above configuration, the riding rice transplanter (1) puts the mat seedlings on the seedling stand (7) and the auxiliary seedling stand (12), and lowers the planting device (11). , The seedlings on the seedling stand (7) are planted in the field by the planting rods (10) and run.

Also, the mat seedlings on the seedling stand (7) are running low,
When supplying the auxiliary seedlings to the seedling placing table (7), the frame (55) slides forward of the machine body with respect to the base plate (52) and further lowers to lower the seedling placing tables (12a), (12b). ) Align the tip of the upper seedling dish with the upper end of the seedling stand (7) so as to be aligned in a side view.

Furthermore, when the riding rice transplanter (1) turns in a headland, the planting device (11) is lifted by the lifting link (21), but the lifting link (21) is substantially parallel to the field scene. In the position, the elevating link (21) has the supporting link device (19)
Then, the support link device (19), that is, the auxiliary seedling stand (12) is interlocked with the planting device (11) and then pushed up.
Rise, and the planting device (11) and the auxiliary seedling stand (12) turn while keeping a constant distance.

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

(F) Example Hereinafter, an example of the present invention will be described 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. A driver's seat 9 having a 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. Furthermore, the traveling body 5
A planting device 11 is movably supported in the rear of the plant via a planting lifting link 21, and the planting device 11 includes a large number of planting rods 10 made of rotary planting plates, a float 22, and a mat. A seedling stand 7 is provided on which two seedlings can be placed vertically. 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 machine body, and a suction hose 26 supported by a machine body frame 25 extends from the fertilizer tank 23 toward the rear of the machine body, and an operating seat. It communicates with a pump device 30 disposed at a position below 20. 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 ... And is guided to the nozzle 37 near the planting rod 10.

On the other hand, a link strut 39 is fixed to the machine frame 25, and a bracket 39a is provided at the upper end of the link strut 39.
Has been fixed. Further, the bracket 39a has pins 46,
The parallel links 47, 47 are supported by 46 so as to be rotatable in the vertical direction of the machine body, and the support rod 50 is connected to the tip ends of the parallel links 47, 47 by a pin 49. 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. Pin 4 at the end of the other link 43b
Connected via 4. Further, the link support 39 has a lower limit stopper formed by bending a rod member such as a pipe.
13 is fixed, and the lower limit stopper 13 abuts the lower link 47a of the parallel link 47 at a predetermined position for a predetermined length to prevent downward movement of the link 47a and also the auxiliary seedling stand 12 Is configured to support a load acting on the. Further, a plate 53 is fixedly attached to the link 43b of the connecting link 43, and is configured so as to be able to come into contact with the lower link 21b of the planting elevating link 21 that elevates the planting device 11 at a predetermined position. There is. Also, the above-mentioned link support 39, connecting link 43, parallel links 47, 47 and supporting rod 5
0 constitutes an up-and-down support link device 19, which is connected to the rear part of the traveling machine body 5 so as to be able to move up and down as described above, and supports an auxiliary seedling stand 12 described later so as to be able to move up and down. You can

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, the support rod 50 that constitutes the lifting support link device 19
A base plate 52 is fixed to the tip of the base plate 52, and a pin 51 is provided on the base plate 52 so as to be vertically rotatable.
63 is supported, and further, the U-shaped frame 55 is supported on the connecting member 63 by a rail so as to be slidable in the machine longitudinal direction.

In addition, the upper seedling placing table 12a has the U-shaped frame 55
Is supported by a support member 58 fixed to a pin 64 in a vertically tiltable manner in the machine body, and a roller 59a provided at one end of a tilt adjusting lever 59 is moved in the machine body front-rear direction to move the seedling placement table 12a. It is configured so that it 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 is configured to come into contact with the U-shaped frame 55 when the auxiliary seedling stand 12 is inclined.

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 front and rear and rearward 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 left-right direction of the machine body, and a fixing pin 73 fixed to the connecting plate 70 is drilled in the base plate 52. Established 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 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. 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. When the remaining amount of mat seedlings on the seedling stand 7 becomes low again, the operator stops the riding rice transplanter 1 and keeps 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 root 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.
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.

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. 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.

In addition, in this example, although what was applied to the 8 row planting rice transplanter was demonstrated, it is needless to say that it may be applied to 6 row planting, 4 row planting etc. .

(G) Effect of the Invention As described above, according to the present invention, the base plate (52) is fixed to the tip of the support link device (19) connected to the rear part of the traveling body (5), and the base plate (52) is fixed. The frame (55) is supported on the frame (52) so as to be slidable and tiltable in the longitudinal direction of the machine body, and the auxiliary seedling stand (12) can be placed on the frame (55). By sliding (55), the tips of the seedling dishes (56), (57) can be brought close to the upper end of the seedling stand (7), and the seedling dish can be pushed out and the seedlings can be replenished very easily. Although it is possible to supply the seedling support table (7) almost completely with auxiliary seedlings, under normal conditions such as when planting work, the seedling dish (56) on the frame (55), (57) can be placed so as to partially overlap the seedling stand (7) in a side view of the rice transplanter. The total length of the planting machine (1) can be shortened, the turning radius can be reduced to reduce the headland, and the auxiliary seedling stand (12) and the planting device (11) can be arranged close to the body weight center of the machine. The front-rear balance can be maintained well, and the planting performance can also be improved.

Further, since the support link device (19) and the lifting link (21) are configured to come into contact with each other when the lifting link (21) is lifted to a predetermined position and are lifted in conjunction with each other, for example, the riding rice transplanter (1) is When turning in a headland, the planting device (11) is lifted by the action of the lifting link (21), but when the lifting link (21) is substantially parallel to the field scene, The lifting link (21) abuts against the support link device (19) and pushes it up, and thereafter, the support link device (19) operates upward in conjunction with the rise of the planting device (11), and the auxiliary seedling accordingly. The platform (12) rises. Then, the planting device (11) and the auxiliary seedling stand (12) rise to the upper limit position while keeping a constant distance, and the riding rice transplanter (1) turns, so the planting device (11) and the auxiliary planting device (12) There is no possibility that the seedling stand (12) will interfere with each other, and therefore damages due to the interference of these components can be prevented.

Further, when the grips (65) and (65) are fixed at positions separated by a predetermined distance in the left-right direction of the body of the frame (55) and the fixing release lever (54) is installed adjacent to the grips, the frame (55 The operator can easily and surely perform the slide operation of () in a comfortable posture in which the operator is seated rearward in the driver's seat (9).

[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), 5 …… traveling machine, 6 ……
Engine, 7 ... Seedling stand, 9 ... Driver's seat, 10 ... Planting rod, 11 ... Planting device, 12 ... Auxiliary seedling stand, 12a ... Seedling placement table (upper seedling placement table), 12b ... seedling placing table (lower seedling placing table), 52 ... base plate, 55 ... frame (U-shaped frame).

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-54-80821 (JP, A) Actual development: S55-178319 (JP, U)

Claims (1)

(57) [Scope of utility model registration request] 1. A rice transplanter in which a planting device having a seedling stand and a planting rod is movably connected and supported by an elevating link behind a traveling machine having an engine and a driver's seat. A support link device connected to a rear portion so as to be able to move up and down, a base plate fixed to a tip end portion of the support link device, and a frame supported on the base plate so as to be slidable and tiltable in the machine longitudinal direction. An auxiliary seedling stand can be placed on the frame, and the supporting link device and the elevating link are configured to come into contact with each other when the elevating link is moved up to a predetermined position to move up and down in conjunction with each other. Auxiliary seedling placement device in the machine.