JPS61285912A - Marker in rice field working vehicle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a marker device in a rice paddy working vehicle, particularly a riding rice transplanter, and more particularly to the structure and arrangement of the marker device.

(bl) Conventional technology In general, riding rice transplanters maintain appropriate spacing between planting rows of seedlings,
In addition, in order to improve the straightness of the aircraft, during planting work,
It is equipped with a marker to draw a line on the rice field that will serve as the aircraft's reference line for the next leg.

Conventionally, the marker device has been used, for example, in U.S. Pat.
As shown in Publication No. 307, in order to move the marker from the working position where it is lowered and extended to the side of the machine body to the non-working position where it is raised and stored, the marker is moved in conjunction with the operation of a hydraulic cylinder device that raises and lowers the planting section. At the same time, the mechanical or electrical locking member that holds either the left or right marker in the non-working position is switched alternately between the left and right markers with the operation of the hydraulic cylinder device, and when the machine turns around at the edge of the field, planting is carried out. The left and right markers are automatically switched to the working position by raising and lowering the parts.

In addition, the switching control section of the conventional marker device is arranged above the hydraulic cylinder device near the central lower part of the traveling aircraft in order to directly connect the hydraulic cylinder device, and It was attached to a bracket for the cylinder device.

(c) Problems to be Solved by the Invention For this reason, the marker device cannot be installed or removed as an assembly, and in order to assemble, adjust or disassemble the marker device,
Workers have to crawl under the traveling aircraft and reach into the upper part of the hydraulic cylinder device to work, making the work extremely difficult and requiring the individual parts to be installed and removed individually. , the workability was very poor.

In addition, a marker device in which the switching control section is provided on the side of the planting area has been devised; In addition, there is a risk that muddy water may splash onto the switching control section, causing malfunctions, and that the switching control section may become unusable relatively quickly.

fdl Means for Solving the Problem The present invention has been made based on the above-mentioned circumstances. For example, as shown in FIGS. 1 and 2, the switching control section 27 is located above the rear of the traveling aircraft and driver seat 10
The members 30 to 42 which are arranged at the rear and which constitute the switching control section 27 are attached to the base plate 30 to constitute an assembly, and the switching control section 27 is connected to the traveling aircraft (29
) with a bolt 55 or the like in a removable manner.

(e) Based on the configuration described above last month, the switching control unit 27 consists of an assembly.
For details, see the notch 29m of the seat cover 29.
A wire connecting pin 50 at the tip of the actuating arm 49 interlocked with the (upper) link 15a is installed in the cutout groove 31d formed in the left and right actuating bodies 31L and 31R from above.
The base plate 30 is further fixed with bolts 55 to be assembled. Furthermore, by removing the bolts 55 and pulling the base plate 30 upward, the switching control section 27 (as an assembly) can be removed as a whole.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 8, the riding rice transplanter 1 has a traveling body 5 supported by front wheels 2 and rear wheels 3, and the traveling body 5 connects a front transmission case 6 and a rear axle 7. Consisting of a frame 9, a driver's seat 11 consisting of a seat 10 and a steering handle 8 located approximately above the center of gravity of the rice transplanter is disposed above the frame 9, and a front chassis protruding forward of the driver's seat 11 is arranged above the frame 9. An engine 13 is mounted by 12. Further, an upper link 15a and a lower link 1 are provided on the left and right seat frames 9a which are erected on the frame 9 and also serve as seat support legs.
A parallel link mechanism 15 consisting of 5b is connected, and the planting section 16 is supported by the link mechanism 15 so as to be movable up and down. The planting section 16 (supported by a drive case 17, a float 18, a planter case 19, and a planting frame 20 so as to be movable in the left and right direction via a mounting stay 20a, and capable of vertically placing two and a half mat seedlings Long seedling stand 2
1 and a planter 1971 disposed in each planter case 19. Further, markers 22 are rotatably supported on the left and right stays 20a for supporting the seedling stand 21, respectively, and the left and right markers 22L and 22R are attached to the back side of the seedling stand 21, as shown in detail in FIG. The marker 22L is switched to the non-working position A (actual R) stored in the planter and the working position B (dashed line) in which the planting part 16 protrudes to the side and its bent tip a contacts the field surface, and these markers 22L, 22R is a return spring 23 stretched between the planting frame 20
is biased to the working position. Also,
A bracket 25 is fixedly attached to the front transmission case 6 and the upper link 15a at the center of the traveling body 5 in the width direction.
A hydraulic cylinder device 26 is interposed between the two, and the planting section 16 is controlled to rise and fall by expanding and contracting the cylinder device 26. A switching control section 27 of the marker device according to the present invention is installed in a portion behind the seat 10 between the upper ends of the left and right seat frames 9a, that is, in an upper portion of the traveling body 5.

As shown in FIGS. 1 to 3, the switching control section 27 is fixed with bolts across the upper ends of the left and right frames 9a, 9a (a cutout 29a of a seat cover 29 to which this is fixed). The base plate 30 further includes left and right plays (30L, 30) extending in the vertical direction.
R is integrally formed. In addition, these plays) 30
Long holes 30a are formed in L and 30R, respectively.
In the elongated hole 30a, left and right actuating bodies 31L and 31R are slidably guided in the vertical direction via pins 31a and 31a fixed thereto, respectively, and the actuating bodies 31...
There is a notch 31c on the top surface of each so that the rear part is lower.
, 31c are formed.

Furthermore, a pin 30G is installed downward in the center of the base plate 30.
is fixedly installed, and the switching plate 3 is fixed to the pin 3QC.
2 is swingably supported by a boss 32b. The switching plate 32 has protrusions 321, 3 that protrude in the left-right direction.
2r and a protruding piece 32a that protrudes forward, and the left and right protruding pieces 321 and 32r each fit into the notch 31 of the actuating body 31.
c, placed on or close to the rear surface of 31a, and the front protruding piece 32;
A long pin 33 is fixed to a. Also, pin 3
At 0C, the switching arm 35 is connected to the switching round plate boss 32b.
The switching arm 35 has two plates 35a, 35b and a long pin 36 fixed to the tips of these plates. Furthermore, switching springs 37.3 are provided between the pin 36 and the pin 33 at their upper and lower ends, respectively.
7 is tensioned, and the spring 37 causes the pin 36 to move in the left-right direction based on the switching plate 32, thereby switching the switching arm 35 to the left-right switching position. In addition, left and right brackets 39L and 39R are fixed to the rear portion of the base plate 30, and a long lock bin 40 is supported so as to be slidable laterally through holes formed in these brackets. lock pin 40
can come into contact with the rear end portions of the left and right actuating bodies 31L and 31R at the protruding position. Further, plates 41a and 41b are fixed to the top and bottom surfaces of the lock bin 40, and the plates 41 are fixed to the pins 36, and the pins 36 are inserted into the long holes of the base plate 30. It penetrates and protrudes upward. Further, a pin 30D is fixed to the rear portion of the base plate 30 so as to protrude upward, and the pin 30D has a long hole 42a formed therein with a switching lock lever 42.
It is supported so as to be able to swing and slide freely. The switching lock lever 42 has a bent operating portion 42b at its rear end, and the pin 33 is connected to its tip.
Furthermore, a guide plate 42c having a guide portion in the shape of a flare toward the end capable of engaging with the pin 36 is fixed to the tip. Further, a vertically extending plate 42d is fixed to the lower surface of the rear end of the switching lock lever 42, and the plate 42d is fixed to the lower surface of the rear end of the switching lock lever 42.
A retaining member 43 made of a plate spring is fixed to 2d, and as the lever 42 moves in the direction of the seat 10, the plate 42 engages with the notched groove 30e formed in the base plate 30. An engagement member 43 can engage pin 30D.

On the other hand, a shaft 45 is bridged across the left and right frames 9g and 9a, and the upper link 1 of the link mechanism 15 is connected to the shaft 45.
5a is pivotally supported. Furthermore, brackets 46 are fixed to the left and right frames 9a, 9a, respectively, in the vicinity of the shaft 45, and a shaft 47 is bridged over the tips of both brackets 46. Then, the bosses 49a, 49a are fitted into the shaft 47, and the operating arms 49L, 49a are inserted into the shaft 47.
9R is rotatably supported, and the arms 49 are made up of plates 49b and 49c that extend up and down, and a connecting piece 50 is pivotally supported at the tip of the lower plate 49C. is prevented from coming out by a nut 51, and a rod 52 is slidably guided, and the rod 52
The other end is pivoted and connected to a plate 55 fixed to the proximal end of the sink 15a.On the other hand, a cutout groove 31d that opens downward is provided on the front lower surface of the left and right actuating bodies 31L and 31R. is formed, and an inner wire connecting pin 50 installed at the tip of the upper plate 49b of the actuating arm is engaged with the notch groove 31d. , left and right markers 22
L and 22R, and one end of the outer wire 51b is fixed to the seat frame 9a,
The other end is the stay 20a near the marker pivot focus.
is fixed.

Since the present embodiment has the above-described configuration, the riding rice transplanter allows the planter 19a to scrape the seedlings on the seedling stand 21 while the planting part 16 is lowered, that is, the float 18 slides on the rice field surface. Harvest and plant in rice fields. At this time, a marker on the non-planted side, for example, the right marker 22R, is dropped at work position B, a line is drawn on the rice field, and the operator operates the rice transplanter along the line in the next planting process.

When the rice transplanter 1 finishes one stroke of planting work and reaches the edge of the field, a hydraulic cylinder device 2 is used to turn the rice transplanter 1.
6 and raise the planting part 16. Then, planting part 1
6, the plate 55, rod 52, nut 51, connecting piece 5
The right operating arm 49R is rotated via the wire 51a, and the marker 22R located at the working position B is stored in the non-working position A via the wire 51a. Furthermore, based on the rotation of the actuating arm 49R, the right actuating body 31R slides in the forward direction of the fuselage (to the right in FIGS. 1 and 3) via the connecting pin 50 and the notch groove 31d. However, in this state, the lock pin 40 is biased rightward by the spring 37 as will be described in detail later, and when the rear end of the right actuating body 31R passes over the lock pin 40, the lock pin 40 is released. It protrudes (see FIG. 3) and prevents the right operating body 31R from sliding toward the rear of the fuselage. At this time, the left operating body 31L is attached to the four pins 4.
Until the I-elbow of the right actuating body 31R is released and protrudes to the right, the lock pin 40 prevents the left marker 22L from sliding backward, and therefore the left marker 22L is held in the non-working position. The left operating arm 49L is also held in the raised position, and the movement of the upper link 15a is controlled by the rod 52 connected to the connecting piece 50.
It is absorbed by sliding through the holes.

Then, the rotation of the rice transplanter 1 is completed, and the planting work should be restarted (the planting part 16 is lowered. Then, the upper link 15
With the descent of a, the left and right operating arms 49 also rotate counterclockwise in FIG. 1 via the plate 55 and rod 52.
When the right actuating arm 31R1,t (If) moves backward, its movement is blocked by the lock pin 40, and the right actuating arm 4
9R remains in that position, and the right marker 22R is held in the non-working position A. On the other hand, left operating arm 49L
When the left operating body 31 moves to the rear of the aircraft based on the rotation of
21, and rotates the plate 32 counterclockwise in FIG. 3 about the pin 30C (see FIG. 4). Then, the pin 3 provided on the front protruding piece 32a of the switching plate 32
3 moves largely to the left, and the tension spring 37 tensioned between it and the pin 36 passes over the pivot pin 30C, that is, beyond the consideration point, and moves the switching round arm 35 clockwise around the pin 30G. to energize. As a result, the lock pin 40 is also biased to the left via the pin 36 and the plays 1-41a and 41b, but in this state, the rear end portion l of the left operating body 31L has already passed through the pin 40 portion. Therefore, the tip of the pin 40 is prevented from protruding leftward by contacting the side surface of the left actuating body 31L, and the right actuating body 31R remains locked to the lock pin 40. As the planting section descends, the left actuating body 31L moves rearward, and the left marker 22L is also set at the working position B projecting to the side of the planting section 16 via the wire 51a.

When the rice transplanter 1 is turned around again, when the planting part 16 is raised, the left actuating piece 31L is moved to the front of the machine body via the left actuating arm 49L, and when the actuating piece 31L exceeds the lock bin 40 position, The lock pin 40 is then protruded by the biasing force of the spring 37 to prevent the left actuating body 31L from returning, and is also switched to release the right actuating body 31L (see FIG. 5). Then, as the planting part 16 descends, the left actuating body 31L moves to the lock pin 4 in the same manner as described above.
0, the marker 22L is held at the non-working position A, and the right actuating body 31R moves and the right marker 22R is set at the working position B. At this time, the switching lever 42 rotates around the pin 300 due to the horizontal movement of the pin 33 based on the swinging of the switching plate 32, but which marker is activated next when the planting section 16 is raised? In order to instruct whether to
is on the working body side, that is, working position B, which moves as the planting part descends.
It is located on the marker side (see Figure 3).

When the rice transplanter 1 reaches the final stage of the planting work and becomes unable to lower the marker due to obstructions such as ridges, the rice transplanter 1
6 is raised, the driver faces rearward while sitting on the seat 10, moves the switching lock lever 42 to the center position by holding the operating portion 42b, and further pushes it toward the front of the machine (see FIG. 6).

Then, the plate 42d engages with the notched groove 30e to prevent the lever 42 from moving laterally, and the barb engaging member 43 engages with the pin 30D to be positioned at the pushed-in position. In this state, the pin 33 is located in the center, so the switching plate 32 is in the neutral position, and the guide plate 42C is in the neutral position.
The pin 36 is regulated to the center position by the guide portion. Therefore, the lock pin 40 is also located at the neutral position together with the pin 36, and in the neutral position, the lock pin 40 is located at the left and right reactivating body 3.
Prevents backward movement of 1L and 31R. As a result, even if the planting section 16 is lowered, both moving objects 31L.

31R is engaged with the lock pin 40 and is prevented from moving, and the left and right markers 22L and 22R are held at the non-working position A.

Further, the marker device includes an actuation arm 49 and a wire 51m.
, 51b to the seat frame 9a, the switching control section 27, whose respective members are attached to the base plate 30 to form an integrated assembly, is inserted into the notch grooves 31., 51b of the actuating bodies 31L, 31R. d receives the connecting pin 50, it is assembled from above into the notch 29a of the seat cover 29, and then fixed with the bolt 55.

In addition, when the switching control section 27 malfunctions, the seat 10
If you can easily find the malfunctioning part of the paper machine by tilting it forward and looking into it, and if it can be easily adjusted while still assembled,
If the adjustment cannot be made easily because it requires manual adjustment or replacement of parts, remove the bolt 55 and remove the switch control unit 2.
7 as an assembly, and after disassembling and adjusting the necessary parts without removing it, install it again from above and reassemble it.

In addition, although the above-mentioned example described a riding rice transplanter,
Of course, the present marker device may also be used in other paddy field work vehicles such as a sub-soil seeding machine for flooded paddy fields.

Moreover, although the description has been made regarding the line marker, it can be similarly used as a trace marker that instructs the seedling to be followed along the previously planted seedling.

(gl As described in detail, according to the present invention, the marker device switching section 27 is disposed above the rear part of the traveling body 5 and behind the seat 10 of the driver's seat 11, so that mud and muddy water can be removed during the operation.) It is possible to maintain smooth operation and improve durability with less adhesion of the switching control section 2.
7 is a member (upper link) 15a that switches and operates it.
It is located near the left and right markers 22L and 22R installed on the working part (wl attached part) 16, and the interlocking members (rod 52, actuating arm 49 and wire 50) that interlock these are also short. Since the configuration is simple, and it is located near the seat 10, the driver can operate the switching control unit 27, more specifically, the switching lock lever 42, while sitting on the seat 10, and can further tilt the seat 10 forward, etc. , you can easily find malfunctioning parts. Further, each member 30 to 42 constituting the switching control section 27 is attached to the base plate 30, and the switching control section 27 constitutes an integral assembly, and the assembly is attached to the traveling machine body, for example, the seat cover 29. Since it is detachably attached, it is extremely easy to assemble and disassemble, and MIJ adjustment and replacement of defective parts can be performed extremely easily with the switching control section 27 removed.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a switching control section of a marker device according to the present invention, FIG. 2 is a rear view thereof, and FIG. 3 is a plan view thereof. Moreover, FIGS. 4 to 6 are plan views showing different states thereof. FIG. 7 is a front view showing left and right markers, and FIG. 8 is a side view showing a riding field M machine equipped with this marker device. 1. Paddy field work vehicle (riding rice transplanter), 5.. Traveling 41
Body, 9-...Frame, 9a...Seat frame, 10...Seat, 11...
Driver's seat, 15 - Link machine [, 15a... Upper link, 16 - Working section (planting section), 22L, 22R-
Marker, 27...Switching statement control section, 29.Seat cover, 29a...Notch section, 30.Base plate, 32L, 32R...Left and right operating body, 32
...Switching plate, 33...Pin, 35.
...Switching arm, 36...Pin, 37
...Spring, 4o...Lock pin, 4
2... Switching lock lever, 49L, 49R... Left and right operating arm, 5o... Connection pin, 51.
・Wire, 51a... Inner wire, 55
...Bolt.

Claims (2)

[Claims] (1) A working part is supported on the traveling machine body via a link mechanism so that it can be raised and lowered, and the working part is driven up and down by a hydraulic cylinder device. In a rice paddy work vehicle equipped with a switching control section that alternately switches between a working position in which the machine is extended downward to the side and a non-working position in which it is raised and stowed, the switching control section is located above the rear of the traveling machine. A paddy field work vehicle, which is arranged behind the driver's seat, and further includes each member constituting the switching control section being attached to a base plate to form an assembly, and the switching control section being detachably attached to the traveling body. marker device. (2) forming a notch opening downward in the left and right actuating bodies constituting the switching control section, and connecting wires connected to the markers to the tips of the left and right actuating arms interlocked with the link mechanism, respectively; The marker device for a paddy field working vehicle according to claim 1, wherein the connecting portion is configured to engage with the notch groove.