JPH0445449Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention is a marker for a riding-type paddy field vehicle that is equipped with rice-field working sections such as a seedling planting section and a sowing section for flooded paddy fields. This relates to a control device.

[Prior Art and Problems to be Solved by the Invention] Generally, this type of riding type field vehicle is provided with markers that can be raised and lowered on the left and right sides to mark the next work process. By the way, in this case, as the working part rises, the marker, which is in the laid down marking position, automatically changes to the upright stowed position, and after the machine has rotated, the working part is moved to the next working process. A marker control mechanism is provided that automatically changes the marker on the opposite side to the marking position from the previous work stroke when the machine is lowered, and the left and right markers move as the machine rotates. There is one that automates the raising and lowering operation.

However, in this case, when starting field work such as planting seedlings, it is not clear whether the left or right marker will be in the marking position as the working part first descends, and this causes the worker to You must be careful which marker falls down at the start, and if the marker on the opposite side of the desired one falls down, raise the lowered working part once and then lower it again. At the very least, it is necessary to lower the marker on the desired side, which is a complicated operation, and if you start working without noticing that the marker on the opposite side has been lowered, the marker may collide with a ridge or the like and be damaged. This has been a problem due to its shortcomings, such as the fact that

Therefore, it has been proposed to display which side of the marker is to be lowered when the working part is lowered, and to be configured so that the operator can manually switch the marker on the side to be lowered if necessary.
There is a strong demand for these devices to have a simple structure, a small number of parts, and to operate smoothly and reliably.

[Means for Solving the Problems] In view of the above-mentioned actual circumstances, the present invention was devised for the purpose of providing a marker control device for a riding type paddy vehicle that can eliminate these drawbacks. The left and right sides of the working part, which is provided on the traveling machine so that it can be raised and lowered, are always biased toward the lying down marking position, and the working part is raised to change from the marking position to the upright stowed position. In a ride-on rice plowing vehicle equipped with markers configured to be linked and automatically locked, a marker locking means which is always energized is provided on the side that locks each marker in the stowed position, and an end to the marker locking means is provided. The left and right actuating plates, which are connected to each other, are connected to the marker lock switching means, whose center part is pivoted to the traveling body side, through the left and right elongated holes, through a bullet that operates beyond the fulcrum so that it can freely swing left and right. and forcibly transform one of the lock plates into an unlocked position by switching the marker locking means to the left and right,
The other lock plate is held in the locked state, and
The marker lock switching means is provided with a manual operating tool for manually switching left and right swinging, and the lifting operating tool of the working section is further provided with a linear reciprocating tool by operating the lifting operating tool to the up and down position. A switching actuating body is provided, which interferes with the marker lock switching means when the lifting operation tool is operated to the upward side, and causes the marker lock switching means to swing to the opposite switching position, and also to the fixed and downward sides. It is characterized in that it is constructed so that it is separated from the marker lock switching means when it is operated.

With this configuration, the present invention has a simple structure, a small number of parts, and smooth and reliable operation of marker display and marker switching on the side to be laid down.

[Example] Next, the present invention will be described in more detail based on an example shown in the drawings. In the drawings, reference numeral 1 denotes a traveling body of a riding type rice transplanter, and a seedling planting section 2 is installed at the rear of the traveling body 1 via a link mechanism 3. A cylinder rod 4a of a hydraulic cylinder 4 is connected to the link mechanism 3, and by operating a lift operation lever (lift operation tool) 5 from a fixed position S to a rise position U or a fall position D, the hydraulic cylinder can be moved. 4 expands and contracts, and the link mechanism 3 is configured to swing up and down so that the seedling planting section 2 moves up and down. Reference numeral 6 designates a buffer bullet wound around the cylinder rod 4a, and 7 and 8 designate its bullet receivers.

9 is a support shaft 9a on both the left and right sides of the seedling planting section 2.
The marker 9 is rotatably supported on the ammunition 9a so as to be able to change its appearance between a lying down marking position and a storage position standing up on the side of the work section. Therefore, it is constantly urged to lie down toward the marking position. Further, one end of the inner wire 10 is connected to the proximal end of the marker 9, and the other end of the inner wire 10 is connected to a locking portion 4 protruding from the hydraulic cylinder 4.
connected to b. The hydraulic cylinder side outer receiver 11a of the outer wire 11 covering the inner wire 10 has an operating rod 12 formed in a substantially L-shape.
It is fixed to one side arm 12a of. This one side arm 1
2a passes through the above-mentioned bullet receiver 7, and a double nut 13 is screwed onto the tip thereof at an appropriate position. On the other hand, the other arm 12b of the operating rod 12 is slidably fitted into a long hole 14a formed in a bracket 14 fixed to the hydraulic cylinder 4. Then, as described above, the bullet receiver 7, which was moved rearward by the extension of the hydraulic cylinder 4 in order to raise the seedling planting part 2,
By abutting the double nut 13 and moving the operating rod 12 backward (in the direction of the arrow in FIG. 2), the inner wire 10 is pulled relative to the outer wire 11, thereby causing the marker 9 to move toward the ammunition 9b.
At the same time, the other arm 12b of the operating rod reaches the rear end edge of the elongated hole 14a.

A lock plate 15 is rotatably supported on a support shaft 16 fixed to the hydraulic cylinder 4 to correspond to the left and right markers 9, and constitutes the marker lock means of the present invention. Board 15
As described above, this locks the other arm 12b of the operating rod that reaches the rear end edge of the long hole 14a when the seedling planting section 2 is raised, and is connected to the locking plate 15 via the connecting rod 16a. An actuating plate 17 is provided integrally with each other. Note that 18 is a bullet that biases the lock plate 15 toward the lock side.

Reference numeral 19 denotes a marker lock switching plate in which a central boss portion 19a is rotatably supported on a pin shaft 21 embedded in the case 20, and pins protruding from both left and right ends of the marker lock switching plate 19 are provided. 22 is a long hole 17 bored in each of the actuating plates 17.
They are slidably fitted into the respective parts a. Furthermore, a bullet 23 is interposed between the central protrusion 19b of the marker lock switching plate 19 and the case 20.
As a result, the marker lock switching plate 19 is configured to swing as the ammunition 23 moves over the fulcrum (pin shaft 21).

For example, in the switching posture state in which the left side of the marker lock switching plate 19 is raised as shown in FIG.
5 is held in the unlocked position against the ammunition 18, and on the other hand, on the lowered right side of the marker lock switching plate 19, the right operating plate 17 is lowered by the biasing force of the ammunition 18 and released from the pin 22. The right locking plate 15 is configured to be in a locked position.

Furthermore, the marker lock switching plate 19 has a manual operation lever 24 integrally fixed to the boss portion 19a.
However, by switching the manual operation lever 24 left and right, the marker lock switching plate 19 swings while receiving the action of the bullet 23 to cross over the fulcrum, and the left lock plate 19 as shown in FIG. 15 is unlocked and the right side lock plate 1 in Fig. 4.
5 can be switched and swung to a position in which the lock is released.

25 is a wire 26 connected to the lifting operation lever 5.
The tip of the actuating body 25 is hook-shaped, and is adapted to engage and interfere with the marker lock switching plate 19 from above while straddling it. However, the operating body 25 is further moved by the marker lock switching plate 19 by the bullet 27.
It is always biased upward so that the engagement is released by separating from the contact point. And the lift operation lever 5
is located at the fixed position S, the actuating body 2
5 is located above where the engagement with the marker lock switching plate 19 is released (it is located further above when the lift operation lever 5 is positioned at the lowered position D), and when the marker lock switching plate 19 is raised. However, when the lift operation lever 5 is placed in the raised position U, the actuating body 25 descends against the bullet 27 and faces the raised side part of the marker lock switching plate 19 ( The left side in FIG. 3 and the right side in FIG. 4 engage and interfere with each other, causing the marker lock switching plate 19 to move beyond the fulcrum and swing so that the opposite side becomes higher. When the lift operation lever 5 is again placed in the fixed position S (or lowered position D), the actuating body 25 is raised by the biasing force of the bullet 27 and disengaged from the marker lock switching plate 19. The newly raised portion of the switching plate 19 is now facing, and in this way, the marker lock switching plate 19 is designed to swing from side to side beyond the fulcrum each time the lifting operation lever 5 is raised.

In the embodiment of the present invention configured as described above, when starting the seedling planting work, the seedling planting section 2 is raised and the lifting operation lever 5 is set at the fixed position S, and then the seedling is first lowered down. It is necessary to confirm whether the marker lock of the marker 9 on the desired side has been released. To do this, it is sufficient to check which side the manual operation lever 24 is operated on.

When the marker 9 on the opposite side is in a state of being laid down, the manual operation lever 24 may be operated to the opposite side. In other words, in the extended state of the hydraulic cylinder 4 with the seedling planting part 2 raised, both the left and right operating rods 12 are
Since the other side arm 12b has moved rearward and comes into contact with the rear end edge of the elongated hole 14a, both markers 9 are erected in the storage position against the ammunition 9b. In this state, when the manual operation lever 24 is unlocking the right side marker 9, which is the opposite side to the desired side, if the manual operation lever 24 is switched to the side where the left side marker 9 is laid down, As a result, the marker lock switching plate 19 swings and changes its shape so that its left side rises, as shown in FIG. On the other hand, the right operating plate 17 is released from the marker lock switching plate 19, and the right locking plate 15 is placed in the locked position. In this state, when the raising/lowering control lever 5 is operated to the lower position D to lower the seedling planting section 2, the right marker 9 is locked in the storage position, and the unlocked left marker 9 is moved to the seedling planting section. In conjunction with the lowering of the bullet 2, the bullet 9b automatically transforms into the marking posture by the urging force of the bullet 9b.

When the seedling planting process in which the left marker 9 falls down is completed and the lifting operation lever 5 is operated to the raised position U in order to start the next work process, the lifting operation lever 5 is set to the fixed position S (or lowered position D). The actuating body 25, which had been separated from the marker lock switching plate 19 due to the operation of the marker lock switching plate 19, descends in conjunction with the operation of the lift operation lever 5 to the raised position U, and moves to the raised left side of the marker lock switching plate 19. This will cause the ammunition 23 to forcibly swing over the fulcrum so that the right side will rise. As a result, as shown in FIG.
9, the locking plate 15 assumes the locked position and restricts the left marker 9 from falling down to the marking position. After the aircraft has rotated, lift control lever 5
When the seedling planting section 2 is lowered again by setting the seedling to the lowered position, the right marker 9, which has been unlocked, is automatically lowered to the marking position, contrary to the above. From then on, by repeating this process, the left and right markers 9 will be automatically raised and lowered alternately as the seedling planting section moves up and down as the machine rotates. Automatic raising/lowering control of the marker 9 is performed.

In this way, in the present invention, the left and right markers 9
The locking and unlocking of the seedlings are automatically switched to left and right alternately each time the seedling planting section 2 is raised and lowered, and the markings are performed alternately. Although it is possible to freely manually select the marker 9 on the side that you want to incline, the marker 9 on the side that you want to incline to the left or right can be checked by visually checking the side on which the manual operation lever 24 provided to make the switch is set. By doing so, it can be done as is, and therefore there is no need to control the lighting of a separately provided warning light based on the swing detection switch of the marker lock switching plate 19 or its detection result, and it can be easily done with a small number of parts. become.

Moreover, the switching of the marker lock is achieved by the swinging change of the marker lock switching plate 19 about the pin shaft 21, and the swinging change of the shape is performed when the lifting operation lever 5 is in the fixed position S or in the lowered position. When set to D, manual operation lever 2
4, as well as when the lifting operation lever 5 is operated to the raised position U, the marker lock switching plate 19 is directly oscillated and transformed,
And the marker lock switching plate 19 which changed its oscillating shape.
is maintained in the swinging position until the marker lock switching plate 19 swings to the opposite side due to the biasing force of the ammunition 23 that has crossed the fulcrum.

In other words, when the lift operation lever 5 is located at the fixed position S and the lowered position D, the marker lock switching plate 19 is separated from the operating body 25 and does not receive any interference, and the biasing force of the ammunition 23 It is maintained in any set swing switching posture by. The automatic lodging switching control of the left and right markers is performed by the interference operation of the actuating body 25 that is linked to the operation of the lift operation lever 5 to the raised position U, as described above.
9 is directly oscillated to the opposite oscillating position, and this state is maintained until the next time the elevating operation lever 5 is operated to the raised position U by the biasing force of the projectile 23 that has crossed the fulcrum. It will be maintained as is,
Therefore, the swinging switching operation of the marker lock switching plate 19 can be performed reliably and smoothly. on the other hand,
The same is true when switching between the left and right markers by manual operation, and the manual operation lever 24 directly changes the oscillation of the marker lock switching plate 19, so that the oscillating pivot of the marker lock switching plate 19 changes. If mud or the like has entered the marker lock and caused a problem with the switching rocking, the marker lock switching plate 19 can be forcibly rocked by operating the manual operation lever 24 and the condition can be directly checked, making it easy to maintain. become something.

[Operations and Effects] In summary, the present invention is constructed as described above, and it is possible to work in paddy fields by automatically controlling the left and right markers to raise and lower in turn in response to the up-and-down movement of the working part. However, the marker on the side that will be laid down when the working part is lowered can be freely selected and switched using the manual operation tool, and the marker on the side that will be laid down when work is started can be immediately set as necessary. . In this device, the manual operating tool is provided in the marker lock switching means that switches the marker lock, so by visually checking which side the manual operating tool is set, it is possible to determine whether the marker on the side to be collapsed is on the left or the right. The manual operation tool can be effectively used as a notification means as it is, there is no need to provide a separate notification means, and the structure can be simple and have a small number of parts.

Furthermore, the automatic rocking change of the marker lock switching means is such that when the lifting/lowering operating tool is set in the fixed position or the lowering position, the switching actuator, which is separated and does not interfere with the marker lock switching means, operates the lifting/lowering operation. As the tool is set in the raised position, it interferes with the marker lock switching means, causing it to swing directly to the opposite position, and this position is maintained by the projectile that has crossed the fulcrum. As a result, even if the structure is simple,
This allows for smooth and reliable automatic marker switching control.

Furthermore, since the marker lock switching means is provided with the manual operating tool, the marker lock switching means can be directly oscillated, and therefore, the marker to be collapsed can be selected in the same way as in the case of automatic switching. is smooth and reliable, and
If the rocking of the marker lock switching means is hindered by the adhesion of mud, etc., the operator can directly detect this by not only noticing that the operation of the manual operating tool becomes unusually heavy, but also This can be done reliably by directly forcibly rocking the marker lock switching means by operating a manual operating tool, and it can also be adjusted, making it extremely easy to maintain. .

[Brief explanation of the drawing]

The drawings show an embodiment of the marker control device for a riding type rice transplanter according to the present invention, in which Fig. 1 is an overall side view of the riding type rice transplanter, and Fig. 2 is a diagram showing the marker raising/lowering control mechanism. 3 is a front view of the same essential parts, FIG. 4 is an explanatory diagram of the operation, and FIG. 5 is an explanatory diagram of the operation of the lock mechanism. In the figure, 1 is the main body, 2 is the seedling planting part, 5 is the lift operation lever, 9 is the marker, 12 is the operating rod, 15 is the lock plate, 19 is the marker lock switching plate, 24 is the manual operation lever, and 25 is the operation It is the body.

Claims (1)

[Scope of utility model registration request] On the left and right sides of the working section that can be raised and lowered on the traveling aircraft,
A marker is provided that is always biased toward the lying down marking position and configured to automatically change the position from the marking position to the upright storage position in conjunction with the lifting operation of the working part. In addition, in the riding type rice field vehicle, a marker locking means which is always energized is provided on the side that locks each marker in the storage position, and the left and right actuating plates whose ends are connected to the marker locking means can be freely swung from side to side. The left and right elongated holes are connected to a marker lock switching means whose center portion is pivoted to the traveling body side via a bullet that operates beyond a fulcrum, respectively, and one lock plate is switched by switching the left and right swinging of the marker lock means. The marker lock is forcibly transformed into the unlocked position and the other lock plate is held in the locked state, and the marker lock switching means is provided with a manual operating tool for manually switching the marker lock to the left and right, and The lifting/lowering operating tool of the work section is provided with a switching actuator that moves linearly reciprocally when the lifting/lowering operating tool is operated to the up/down position, and when the lifting/lowering operating tool is operated to the upward side, it interferes with the marker lock switching means. Marker control in a riding type rice field vehicle, characterized in that the marker lock switching means is configured to swing and change to the opposite switching position, and to be separated from the marker lock switching means when operated to the fixed or lowered side. Device.