JPS62207A - Marker apparatus 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 a switching control section thereof.

(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 machine running reference line for the next process.

Conventionally, the marker device has been used, for example, in U.S. Pat.
As shown in Publication No. 3706 and Japanese Utility Model Application Publication No. 59-81307, in order to move the marker from the working position where it is lowered and extended to the side of the machine to the non-working position where it is raised and stored, the raising and lowering operation of the planting section is required. A mechanical or electrical locking member that holds either the left or right marker in a non-working position is switched between left and right in conjunction with the raising and lowering operation of the planting section,
When the machine turns around at the edge of the field, the left and right markers are automatically switched to the working position by raising and lowering the planting section.

In addition, the switching control section of the marker device disclosed in Japanese Utility Model Application Publication No. 59-81307 directly controls the hydraulic cylinder device, so it is located close to the hydraulic cylinder device located near the lower center of the traveling aircraft. It is located on the top and attached to the bracket for the hydraulic cylinder device.

Further, the switching control section of the marker device disclosed in Japanese Utility Model Application Publication No. 57-203706 is arranged on the back side of the seedling stand in the planting section, and is attached to the planting frame via a bracket near the upper link pivot. ing.

(c) Problems to be Solved by the Invention For this reason, in order to assemble, adjust or disassemble the switching control section of the former marker device, an operator must crawl under the traveling aircraft and reach the top of the hydraulic cylinder device. It requires manual intervention, making the work extremely difficult.

In addition, since the switching control section of the latter marker device is located at a lower level in the planting area where muddy water is likely to splash, the switching control section is likely to be splashed with muddy water and cause malfunction.
If there is a risk that the mat will become unusable relatively early and the seedling stand is configured to be long in order to place many mat seedlings,
This makes it difficult to reach the switching control unit, making manual switching work, adjustment, and inspection difficult.

Means for Solving the Problem The present invention aims to solve the above-mentioned problems.For example, as shown in FIGS. 1 to 3, the switching control section 27 of the marker device Left and right actuating bodies 31L and 31R1, which are linked to the elevation of the part (M part 16) and connected to the left and right markers (22L, 27R), respectively; a switching member 32 that is switched by the movement of these actuating bodies; and the switching member 32. It consists of a locking member 40 whose biasing direction is changed by switching, and which restricts the movement of either one of the left and right actuating bodies, and the left or right marker is alternately moved between a working position and a non-working position as the working part moves up and down. It is configured to switch to Furthermore, the switching control section 27
It is installed near the pivot point on the traveling body side of the upper link 15a of the link mechanism that supports the working part so that it can be raised and lowered,
The first left and right operating bodies 31L and 31R are linked to the upper link 15a via left and right operating arms 49L and 49R, respectively.

(el) Based on the above-described configuration, when the working part is raised when turning the machine at the edge of the field, the upper link 15a and one, for example, the left operating arm 49L are connected to one, for example, the left operating body 31.
L moves forward and at the same time the marker in the working position also rises to the non-working position.

At this time, when the actuating body 31L moves forward to a predetermined position, the locking member 40 whose biasing direction has been changed is actuated based on the fact that the switching member 32 has been switched by the backward movement of the actuating body 31L in the previous stroke. It protrudes so as to restrict the backward movement of the body 31L. Then, when the link mechanism is rotated downward to lower the working part again, one (left) actuating body 31L is regulated by the locking member 40, one marker is held in the non-working position, and the other (right) ) is moved rearward via the actuating arm 49R in conjunction with the downward rotation of the upper link 1.5a, and only the other marker is lowered to the working position.

(f) Examples Examples according to the present invention will be described below 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. 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 arranged above the frame 9, and an engine 13 is mounted on a front chassis 12 protruding forward of the driver's seat 11. There is. Further, upper links 15a are provided on the left and right seat frames 9a that are erected on the frame 9 and also serve as seat support legs.
A parallel link mechanism 15 consisting of a lower link 15b and a lower link 15b are connected, and the planting section 16 is supported by the link mechanism 15 so as to be able to rise and fall freely. The planting part 16 is a drive case 17,
A float 18, a planter case 19, and a long seedling stand 21 supported by the planting frame 20 so as to be movable in the left-right direction via an attachment stay 20a and capable of vertically placing two and a half mat seedlings, and each planter. It has a planter 19a arranged in a 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 markers 22L, 22R are switched to the non-working position A (solid line), which is housed in the planting part 16, and the working position B (dashed line), where the planting part 16 protrudes to the side and its bent tip a contacts the field surface. is biased to the working position B by a return spring 23 stretched between it and the planting frame 20. In addition, the front mission case 6 and the upper link 15 in the widthwise central part of the traveling body 5
A hydraulic cylinder device 26 is interposed between the bracket 25 fixedly attached to a, and the planting portion 16 is controlled to move up and down by expanding and contracting the cylinder device 26. And sheet 1
A switching control section 27 of the marker device according to the present invention is installed in a portion between the upper ends of the left and right seat frames 9a at the rear of the vehicle 0, 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 a notch 29a of a seat cover 29 fixed to the upper ends of the left and right frames 9a, 9a. It has a base plate 30, and the base plate 30 further includes left and right plates (30L, 30R) extending in the vertical direction.
are integrally formed. Furthermore, these plates 30L
, 30R are each formed with a long hole 30a, into which left and right actuating bodies 31L, 31R are slidably guided in the vertical direction via pins 31a, 31a fixed thereto, respectively. Moreover, the upper surface of the actuating body 31... has a notch 31c whose rear part is lowered, respectively.
31c is formed.

Furthermore, a pin 30 is provided downwardly in the center of the base plate 30.
A switching plate 32 is swingably supported on the pin 30G by a boss 32b. The switching plate 32 has a protrusion 32j that protrudes in the left-right direction,
32r and a protruding piece 32a that protrudes forward, and the left and right protruding pieces 321 and 32r each fit into the notch 3 of the actuating body 31.
1c, placed on or close to the rear surface of 31a, and the front protruding piece 3
A long pin 33 is fixed to 2a. Further, the switching arm 35 is connected to the switching plate boss 32 on the pin 30G.
The switching arm 35 has two plates 35a, 35b and a long pin 36 fixed to the tips of these plates. Further, between the pin 36 and the pin 33, there are switching springs 37.
37 is tensioned, and the spring 37 moves the pin 36 in the left-right direction based on the switching plate 32 to selectively move the pin 36 to switch the switching arm 35 to the left-right switching position. Furthermore, left and right brackets 39L and 39R are fixed to the rear portion of the base plate 30, and a long lock pin 40 is supported so as to be slidable in the lateral direction, passing through holes formed in these brackets. The lock pin 4
0 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 upper and lower surfaces of the lock pin 40, and the plates 1-41... A pin 30D is fixed to the rear portion of the base plate 30 so as to protrude upward.
At D, a switching lock lever 42 is swingably and slidably supported by an elongated hole 42a formed therein. The switching lock lever 42 has an operating portion 4 bent at its rear end.
2b, and the pin 33 is connected to the tip via an elongated hole 42e, and the guide plate 44 has a guide portion 44m that widens toward the end and can engage with the pin 36 at the rear end. It is fixed. Further, a plate 4 extending in the vertical direction is provided on the lower surface of the rear end of the switching lock lever 42.
2d is fixed to the plate 42d, and an engagement member 43 made of a plate spring is fixed to the plate 42d.
2 engages with the notch groove 30e formed in the base plate 30 as the lever 42 moves toward the seat 10, and the engagement member 43 can engage with the pin 30D.

On the other hand, a shaft 45 is bridged across the left and right frames 9a, and the upper link 1 of the link mechanism 15 is connected to the shaft 45.
5a is pivotally supported. Further, in the vicinity of the shaft 45, the left and right frames 9a, 9a each have a bracket!・46
are fixedly installed, and a shaft 47 is bridged across the tips of both brackets 46. Then, the bosses 49a, 49a are inserted into the shaft 47, and the operation 7-A49L is performed.
49R is rotatably supported, and the arm 49...
- Consists of arms 4, 9b, and 49c extending vertically, and a connecting piece 50 is pivotally supported at the tip of the lower arm 49c, and the connecting piece 50 is screwed into a male threaded portion and can be freely adjusted in the axial direction. The rod 5 is prevented from coming out by the nut 51 which is
2 is slidably guided, and the other end of the rod 52 is connected to a plate 5 fixed to the base end of the upper link 15a.
It is pivoted and connected to 5. On the other hand, the left and right operating body 31
There is a notch groove 31 that opens downward on the front lower surface of L and 31R.
d is formed, and an inner wire connecting pin 56 installed at the tip of the upper plate 49b of the operating arms 49L, 49R is engaged with the notch/1131d. As shown in FIG. 7, the other end of the inner wire 57a is
It is connected to the left and right markers 22L and 22R, respectively.
And one end of the outer wire 57b is connected to the seat frame 9.
It is adjustably attached to a bracket 59 fixed to marker a with a screw, and the other end is fixed to the stay 20a closest to marker pivot pin b.

Since this embodiment has the above configuration, the riding field wI
The machine 1 is in a state where the planting section 16 is lowered, that is, the float 18
The planter 19a is placed on the seedling stand 21 while sliding on the rice field.
Scrape off the upper seedlings and plant them on the rice field. At this time, drop the marker on the non-planted side, for example, the right marker 22R, to the working position B,
A line is drawn on the rice field surface, and the operator operates the rice transplanter along the line during 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 57a, and the marker 22R located at the working position B is stored in the non-working position A via the wire 57a. In addition, based on the rotation of the actuating arm 49R, the right actuating body 31R slides in the forward direction of the fuselage (rightward in FIGS. 1 and 3) via the connecting pin 56 and the notch groove 31d. In this state, the lock pin 40 is biased rightward by the spring 37 as will be described in detail later, and the rear end of the right actuating body 31R is pressed against the lock pin 40.
The lock pin 40 protrudes (see FIG. 3) at the point beyond which the right operating body 31R is prevented from sliding toward the rear of the fuselage. At this time, the left actuating body 31L is prevented from sliding backward by the lock pin 40 until the right actuating body 31R's elbow is released and protrudes to the right. 22L is held in the non-working position, and the left operating arm 49L is also held in the raised position, and the movement of the upper link 15a is absorbed by the rod 52 sliding through the hole in the connecting piece 50.

Then, the rotation of the rice transplanter 1 is completed, and the planting section 16 is lowered to restart the planting work. Then, 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 operating body 31R moves slightly backward, its movement is blocked by the four pins 40, the right operating arm 49R remains in that position, and the right marker 22R is held at the non-working position A. On the other hand, when the left operating body 31L moves to the rear of the aircraft based on the rotation of the left operating arm 49L, its notch 31c comes into contact with the left protruding piece 321 of the switching plate 32, and the plate 32 is moved around the pin 30C. Figure 3 Rotates counterclockwise (see Figure 4). Then, the pin 33 provided on the front protruding piece 32a of the switching plate 32 moves significantly to the left, and the tension spring 37 tensioned between the pin 36 and the pin 36 moves beyond the pivot pin 30C, that is, the point of consideration is moved. and urges the switching arm 35 clockwise around the pin 30C. As a result, the lock pin 40 is also biased to the left via the pin 36 and the plates -41a and 41b, but in this state, the rear end portion of the left operating body 31L has already passed through the pin 40 portion. Therefore, the pin 40
The distal end thereof abuts against the side surface of the left actuating body 31L and is prevented from protruding leftward, 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 extending to the side of the planting section 16 via the wire 57a.

Then, when turning the rice transplanter 1 again, when the planting part 16 is raised, the left actuating piece 31L is moved forward through the left actuating arm 49L, and the actuating piece 31L exceeds the lock pin 40 position. At this point, the lock pin 40 is protruded by the biasing force of the spring 37 to prevent the left actuating body 31L from returning, and is also switched once to release the holding of the right actuating body 31R (see FIG. 5). As the planting part 16 descends, the left actuating body 31L is now prevented from moving by the lock pin 40, the marker 22L is held at the non-working position A, and the right actuating body 31R is The right marker 22R is moved to the working position B. In addition, at this time,
The switching lock lever 42 rotates around the pin 30D due to the left and right movement of the pin 33 based on the swinging of the switching plate 32, but it indicates which marker will operate next when the planting section 16 is raised. In order to
b is located on the side of the working body that moves as the planting section descends, that is, on the side of the marker that will be at work position B (see FIG. 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 in the raised state, the driver rotates to face the rear while sitting on the rotating seat 10, moves the switching lock lever 42 to the center position by holding the operating part 42b, and further pushes it toward the front of the aircraft (6th (see figure). Then, plate 42
d engages with the notched groove 30e to prevent horizontal movement of the lever 42, and the engaging member 43 engages with the pin 30D to be positioned at the pushed-in position. In this state, the pin 33 is located at the center, so the switching plate 32 is in the neutral position, and the left and right projecting pieces 321 and 32r are connected to the left and right reactuating body 3.
The pin 36 is located at a position where it engages with the notch portions 31c of the guide plates 1L and 31R, and the pin 36 is further restricted to the central position by the guide portion of the guide plate 44. Therefore, the lock pin 40 is also located in the neutral position together with the pin 36, and in the neutral position, the lock pin 40 prevents the left and right reactivating bodies 31L and 31R from moving backward. As a result, even if the planting section 16 is lowered, the moving objects 31L and 31R are engaged with the lock pin 40 and are prevented from moving, and the left and right markers 22L and 22R are held at the non-working position A.

Also, prior to planting work, mark 22L on the left and right.

To select which of the 22Rs to activate first,
With the planting part 16 raised, switch lock lever 42
is pulled out rearward to release the notched groove 30e of the plate 42d, and then the operating portion 42b of the lever 42 is swung toward the side where the marker is activated first, for example, to the left as shown in FIG. Then, the switching plate 32 is rotated clockwise by the pin 33, pulling the spring 37 to the right and rotating the switching arm 35 counterclockwise.
Move 0 to the right. In this state, the right operating body 31R
The rearward movement is restricted by the lock pin 40, and when the left operating body 31L is in a free state, only the left marker 22L becomes the working position B as the planting section 16 descends.

Also, due to the difference in tillage depth depending on the field, marker 2
When 2L and 22R are raised rapidly by the rotation of actuating arms 49L and 49R, in a normal field, the time when they start moving from working position B to non-working position A is the full lifting stroke of planting part 16. It is desirable to set the setting when the planting area 16 has risen by at least half the weight, and when descending the markers 22L and 22R, the descent should be started at an early stage of the planting area 16 descent.
It is desirable to set the marker so that it reaches working position B before it reaches halfway through the entire downward stroke.

For this reason, the operator must watch the raising and lowering position of the planting section 16.
The left and right markers 22L, 22R can be adjusted by inserting your hand from the rear of the traveling body 5 and adjusting the amount of play between the rod 52 and the connecting piece 50 by turning the nuts 51 screwed onto the left and right rods 52, respectively. For each, upper link 1
Adjustments are made so that the actuating bodies 31L, 31R are securely locked by the lock pin 40 when the marker 5a is at the highest position, and the outer 57b of the wire 57 connecting the markers 22L, 22R and the actuating bodies 31L, 31R is adjusted. seat frame 9
By adjusting the mounting part a, the left and right markers 22L
, 22R at their non-working position B, and thereby adjust to the above-mentioned optimum position.

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 near the pivot portion 45 of the upper link 15a of the traveling body 5, so mud and muddy water may adhere to it during the operation. This makes it possible to maintain smooth operation and improve durability.
1R can be interlocked with the upper link 15a via the operating arms 49L and 49R, respectively, so the interlocking structure can be extremely simple and short, which simplifies the structure and also makes it easier to adjust and inspect the left and right markers 22L and 22R. This can be done extremely easily in a comfortable position by inserting your hands from the rear of the traveling aircraft. Furthermore, the left and right operating bodies 31L and 31R are respectively left and right operating arms 49L.

While interlocking with the upper link 15a via 49R,
Since they are connected to the left and right markers 22L and 22R, respectively, it is possible to easily adjust the starting position of the left and right markers to fall to the working position B and the storage angle of the non-working position A. can be used in proper condition.

Further, the upper arms 49b of the actuating arms 49L, 49R are connected to the actuating bodies 31L, 31R, and the lower arm 49a of the actuating arms is connected to the upper link 15a via the rod 52.
When linked, the actuating bodies 31L, 31R and the rod 52 can be arranged in the vertical direction with the upper link 15a sandwiched between them, and the movement of these actuating bodies and rods is made in the opposite direction to maintain a good balance of the entire switching control section 27. I can do it. Furthermore, when the marker connecting wire 57 and the upper link interlocking actuating arms 49L, 49R are hooked and connected to the actuating bodies 31L, 31R, the force that lifts the marker acts directly on the actuating arm, and the switching control unit 27 is Since no large force is applied, it is possible to create a compact structure with low intensity.

In addition, when applied to a riding rice transplanter 1 equipped with a planting section 16 having a long seedling stand 21, if the switching control section is provided on the planting section 16 side, even when the planting section 16 is raised. The switching control section cannot be reached from the driver's seat, but
Since the switching control section 27 is located near the seat 10,
The operator can operate the switching control section 27, specifically the switching lock lever 42, while sitting on the seat 10.

[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 rice transplanter equipped with this marker device. 1... Paddy work vehicle (riding rice transplanter), 5... Traveling body, 9... Frame, 9a... Seat frame, 10... Seat, 11...
・Driver's seat, 15...Link mechanism, 15m-upper link, 16...Working part (planting part), 22L,
22R・Marker, 27・-・Switching control section,
291. Seat 1, cover, 29a...notch part, 30...base plate, 31L, 31R...left and right operating body, 32...switching plate, 3
3...Pin, 35...Switching arm,
36...pin, 37...spring, 4
0... Lock pin, 42... Switching lock lever, 49L, 49R... Left and right operating arm, 49a.
・・Lower arm, 49b・・・Upper arm, 51
... Nara L-, 52 ... Rod, 55 ... Plate, 56 ... Connection pin, 57 ... Wire, 57a ... Inner wire, 57b
・Outer wire.

Claims (3)

[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. A paddy field working vehicle is equipped with a switching control section that alternately switches between a working position in which the machine body is lowered and extended to the side and a non-working position in which it is raised and retracted. a left and right actuating body which is movable and connected to the left and right markers, a switching member which is switched by the movement of these actuating bodies, and a biasing direction of which is switched by switching the switching member and which of the left and right actuating bodies. a locking member that restricts movement of one of the two, and the switching control unit is installed near a pivot portion on the traveling body side of the upper link of the link mechanism,
Furthermore, the marker device for a paddy field working vehicle comprises the left and right operating bodies interlocked with the upper links via left and right operating arms, respectively. (2) The left and right operating bodies are arranged above the traveling body side pivot part of the upper link, and the wires connected to the left and right markers are connected to these left and right operating bodies, respectively, and the upper arms of the left and right operating arms are connected. 2. A marker device for a paddy field working vehicle according to claim 1, wherein the lower arms of the left and right operating arms are interlocked with the upper link via a rod having an adjustment portion at a position below the pivot portion. (3) Claim 1, wherein the working section is a planting section equipped with a long seedling stand on which approximately two and a half mat seedlings can be placed.
Marker device in the riding rice transplanter described in Section 2.