JPS643292Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a device for tilting and rotating the tension markers provided on both the left and right sides of a riding-type or walking-type rice transplanter outward one side at a time. It is related to.

[Conventional technology]

Generally, in a rice transplanter, streak marker support rods are provided on both the left and right sides of the rice transplanter so as to be able to rotate outward, and when the rice transplanter is moving forward for rice transplanting work, one of the streak marker support rods is tilted outward. By doing this, marker lines are placed on the field parallel to the seedling planting rows, and the marker lines are used to guide the rice transplanter when it next turns 180 degrees at the edge of the bank and starts rice transplanting. In this case, both striation markers raise the support rod of one striation marker each time a 180° direction turn is made at the edge of the shore, and at the same time raise the support rod of the other striation marker. The operation of lowering and rotating the support rods had to be performed alternately. Conventionally, this operation was performed manually, which not only made the operation extremely troublesome, but also made it difficult to raise one of the support rods. There was a risk of erroneous operation, such as forgetting to do so and damaging the previously planted seedlings, or forgetting to lower the other striation marker support rod and not attaching a marker striation.

Therefore, Japanese Patent Application Laid-open No. 56-68305 as a prior art focuses on the fact that the direction of the rice transplanter at the edge is performed by raising the seedling planting device in the rice transplanter, and The upward and downward movement of the support rod is compared to the upward and downward movement of the seedling planting device.When the seedling planting device is moving up, the support rod with both striped markers stands up and turning, and during the first downward movement of the seedling planting device, it is on the right side or It is proposed that only the striation marker support rod on the left side collapses and rotates, and that only the striation marker support rod on the left or right side collapses and rotates during the next downward movement of the seedling planting device.

[Problem that the invention attempts to solve]

According to this prior art, the elevation and rotation of the double-lined marker support rod is automatically performed in conjunction with the lifting and lowering movements of the seedling planting device. It is possible to eliminate the trouble of manually lifting and turning the rod.

However, the operation of raising and then lowering the seedling planting device is performed not only when turning in direction near the shore, but also when replenishing the seedling platform with seedlings, etc., so the above-mentioned prior art As shown in the figure, when the seedling planting device moves upward, both the tension markers stand up and rotate, and when the seedling planting device first descends, only the right or left side tension marker support rod collapses and rotates. If the structure is such that only the left or right side marker support rod collapses and rotates during the next downward movement, the raising and lowering operation of the seedling planting device when replenishing the seedling pine, etc. Then,
When the seedling planting device is lowered for the first time, the right or left side muscle-pulling marker support rod falls down and rotates, and when the seedling planting device is next lowered, the left or right side muscle-pulling marker support rod collapses and rotates, and the order is reversed. When turning in direction at the edge of a bank, the right or left side striated marker support rod should fall down and rotate, but the left or right side striated marker support rod collapses and rotates, damaging the planted seedlings. Otherwise, the left or right side striation marker support rod may be damaged.

To prevent this, if the seedling planting device is raised and lowered when replenishing seedling pine, etc., the raising and lowering operation of the seedling planting device is repeated again.
When the seedling planting device is lowered for the first time, the right or left side muscle-pulling marker support rod falls down and rotates, and when the seedling planting device is next lowered, the left or right side muscle-pulling marker support rod collapses and rotates, and the order is reversed. This operation was extremely troublesome, as it had to be ensured that this would not occur.

The present invention provides for the tilting and rotation of both barbed marker support rods when the vertical and vertical movements of both barbed marker support rods are automatically performed in conjunction with the lifting and lowering movements of the seedling planting device, as in the prior art. It is an object of the present invention to provide a device that can very easily correct the fact that the order of the seedlings is reversed when the seedling planting device is raised and lowered when replenishing seedling pine.

[Means to solve the problem]

In order to achieve this purpose, the present invention provides marker support rods with striped marker pieces at their tips facing outward on both the left and right sides of a seedling planting device that moves up and down with respect to a support such as a traveling vehicle body or wheels in relation to the field. In a rotatable rice transplanter, one of the two actuating bodies arranged adjacent to each other and substantially parallel, one of the actuating bodies and the marker support rod on the right side, and the other actuating body and the marker support rod on the left side. are interlocked and connected so that each of the marker support rods rotates outward as each of the actuating bodies moves backward, and both of the actuating bodies cause the raising and lowering mechanism of the seedling planting device to raise the seedling planting device. When the seedling planting device is lowered, both the actuating bodies move forward, and when the seedling planting device is lowered, both the actuating bodies move backward. On the other hand, behind the two actuating bodies, there is a mechanism that moves in a direction that intersects the movement of the two actuating bodies. A receiving metal fitting that allows only one of the actuating bodies to move backward due to the movement is provided, and the receiving metal fitting has the following features:
An automatic switching means is provided for moving the receiving fitting in a direction that allows the backward movement of the other working body in conjunction with this when one of the working bodies moves backward and then forward; The metal fitting is provided with a manual switching means that takes priority over the automatic switching means and moves the receiving metal fitting in a direction that allows the backward movement of one of the actuating bodies.

[Functions and effects of the idea]

In this configuration, when the seedling planting device is raised near the shore, the actuating body for the right or left marker support rod that has been fallen down moves forward, so that the right or left marker support rod stands up. Due to the forward movement of the actuating body with respect to the right or left marker support rod, the automatic switching means switches the receiving bracket to a state that allows only the backward movement of the actuating body with respect to the left or right marker support rod. When the seedling planting device is lowered to begin rice planting work, only the left or right marker support rods fall and rotate outward.

When the rice planting work progresses to the edge of the ridge and the seedling planting device is raised, the actuating body for the marker support rod on the left or right side that has fallen down moves forward, so that the marker support rod on the left or right side is moved forward. stand up Due to the forward movement of the actuating body with respect to the left or right marker support rod, the automatic switching means switches the receiving bracket to a state that allows only the backward movement of the actuating body with respect to the right or left marker support rod. Also, when starting the rice planting work,
When the seedling planting device is lowered, only the right or left marker support rod falls and rotates outward.

Additionally, during the above-mentioned rice planting work from edge to edge, when the seedling planting device is raised and then lowered to replenish seedling pine, the marker support rod on the right side is first moved in relation to the vertical movement of the seedling planting device. Fall down and rotate,
Next, the left marker support rod collapses and rotates in the reverse order, first the left marker support rod collapses and rotates, then the right marker support rod collapses and rotates, and so on. However, in order to return to the original order, the receiving bracket is moved by the manual switching means in a direction that allows only the actuating body to move backward relative to the right marker support rod, giving priority to the automatic switching means. All you have to do is do it like this.

In other words, according to the present invention, although the elevation and rotation of both marker support rods can be performed automatically in conjunction with the vertical movement of the seedling planting device, the right marker support rod falls down and rotates first. Then, the order in which the left marker support rod collapses and rotates is reversed when the seedling planting device is raised and lowered when replenishing the seedling pine, etc., by using a manual switching means. , has the effect of being able to modify the original order.

〔Example〕

Below, we will explain the drawings when the embodiment of the present invention is applied to a riding rice transplanter.
indicates a running vehicle body, and the running vehicle body 1 includes a vehicle body frame 2, two front wheels 3 attached to the lower front surface thereof, and two rear wheels 5 attached to both rear left and right sides via chain cases 4.
The upper surface of the vehicle body frame 2 is provided with a control seat 6 and a steering handle 7.
Each of the wheels 3, 5 is driven by the engine 8 on the front upper surface of the
to move forward.

Reference numeral 9 indicates a seedling planting device that is attached to the rear of the traveling vehicle body 1 via a parallel link mechanism 10 and a hitch mechanism 11 so as to be able to move up and down and to be attached and detached. A plurality of planting cases 14 are attached to the left and right sides of the case 12 at appropriate intervals in the lateral direction via pipe-shaped support members 13, and floats 15 are attached to the lower surface of each of the planting cases 14.
16 and a seedling platform 17 whose upper end is inclined so as to approach the traveling vehicle body 1, and a seedling planting mechanism 18 is provided at the rear end of each planting case 14 to be able to swing up and down.
Further, a hydraulic cylinder 19 is provided between the traveling vehicle body 1 and the parallel link mechanism 10 for raising and lowering the seedling planting device 9 by a large amount.

The parallel link mechanism 10 has its base end connected to the traveling vehicle body 1.
It consists of one top link 20 and a pair of left and right lower links 21, which are pivotally connected to the top link 20, and the tip of the top link 20 is connected to the upper pin 23 that connects the pair of left and right joint plates 22, and the tip of the lower link 21 is connected to the lower pin 24.
between the two joint plates 22,
A pair of upper and lower hit pins 25 and 26 are provided. The hitch mechanism 11 also includes a bracket plate 27 attached to the transmission case 12 in the seedling planting device 9.
and a hit body 29 having a U-shape in plan and rotatably attached to the bracket plate 27 through a rolling shaft 28 disposed on the plane center line of the traveling vehicle body 1, The front surfaces of the left and right side plates 30 of the hit body 29 are provided with a downward hook part 31 on the upper part to be hooked to the upper hit pin 25, and a recess 32 in the lower part into which the lower hit pin 26 is fitted. A hitch shaft 34 that is rotatably operated by a lever handle 32 is supported in parallel with both hitch pins 25 and 26, and two eccentric cams 35 are provided on the hitch shaft 34. The two foot levers 37 connected to each other are rotatably fitted so that both foot levers 37 are hooked on the lower hit pin 26, and a pin 38 protruding outward from one end of one foot lever 37 is attached. By installing a spring 40 between the lever handle 33 and the protruding pin 39, when the lever handle 33 is rotated toward the seedling planting device 9, both foot levers 37 are rotated downward by the spring 40. Move the lower hitch pin 2
6, the lower hitch pin 26 is tightened to the hitch body 29 by the rotation of both eccentric cams 37, and the seedling planting device 9 can be connected to the traveling vehicle body 1, and the lever handle 33 can be connected to the traveling vehicle body 1 side. When the seedling planting device 9 is rotated to the position shown in FIG. It is now possible to separate.

In the seedling planting device 9, horizontal bars 41a and 41b projecting outward from the outer surfaces of both planting cases 14 located on the left and right sides of the device 9 each have a field scene 4 at the tip.
Marker support rods 44a, 4 equipped with streaked marker pieces 43a, 43b for drawing marker streaks on 2
The proximal end of the marker support rod 4b is pivotally connected with a pin 45 so that the marker support rod can rotate outward, and both marker support rods 44a and 44b are attached to the base end pivot pin 45 so that the marker support rod 44a and 44b can be rotated outward. A coiled spring 46 biased in the direction
are provided respectively, while both marker support rods 44a, 44
Wires 47a and 47b are respectively fixed to the base end portions of b, so that both marker support rods 44a and 44b are erected by pulling the wires 47a and 47b.

Further, on the upper surface of the hit body 29 in the hit mechanism 11, an interlock switching mechanism 48 is provided for alternately switching the marker support rods 44a, 44b to vertically rotate them in conjunction with the vertical movement of the seedling planting device 9.
is provided. This interlocking switching mechanism 48 includes a bracket 49 having a downward U-shaped cross section attached to the upper surface of the hit body 29, and a pivot pin 2 of the top link 20.
The marker actuating lever 50 has a base end rotatably pivoted to the top link 20, and the marker actuating lever 50 has a stopper piece 51 fixed to the tip of the top link 20.
of the seedling planting device 9 so that the bolt 52 screwed into the seedling planting device 9 comes into contact with the seedling planting device 9 so that it rotates upward by pressing down the bolt 52 when the seedling planting device 9 is raised, and rotates downward when the seedling planting device 9 is lowered. It is related to the movement of elevation.

On the left and right sides of the bracket 49, planar U-shaped operating bodies 53a and 53b are provided approximately parallel to each other at appropriate intervals. A wire 47a from the marker support rod 44b on the right side is fixed to the actuating body 53b on the right side, and a wire 47b from the marker support rod 44b on the right side is fixed in the bracket 49.
A receiving metal fitting 54 having a U-shaped cross section is attached to both actuating bodies 53a and 5.
Both marker support rods 44a, 44b are provided so as to be slidable in the direction intersecting with the marker support rods 44a and 3b.
The inner pieces 53a', 53 of both the operating bodies 53a, 53b are
b' is provided with long slots along its longitudinal direction, and a pin 56 is slidably fitted into both long slots.
is removably fitted into and engaged with the cut groove 55 provided at the tip of the marker actuating lever 50, while the outer pieces 53a'', 53b'' of both the actuating bodies 53a, 53b are inserted into the inner surfaces of the left and right side plates 49a, 49b of the bracket 49. It extends to the 56 pins along the same line.

Further, the bracket 49 includes the receiving metal fitting 5.
4 and between both wires 47a and 47b, a pivot 57 is rotatably supported.
7 is rotatably provided with a switching piece 58 extending rearward from this and a link 59 extending forward from this. A switching pin 61 is implanted to protrude upward from the circular arc-shaped elongated hole 66 provided, and the actuating body 53a,
53b is provided with tapered inclined surfaces 58a and 58b that come into contact with it during its backward movement, while the front end of the link 59 is provided with an arcuate elongated hole 62 that protrudes upward from an arcuate long hole 62 formed in the upper surface plate of the bracket 45. A tension spring is provided between the pin 63 and the switching pin 61, and the pin 63 is fitted into and engaged with the cut groove 64 provided at the tips of the upper and lower horizontal pieces of the receiving fitting 54. 65 and switch pin 6
When the switching pin 61 rotates to the right, the lever 59 is pressed to the right by the tension spring 61, and when the switching pin 61 rotates to the left, the lever 59 is biased by the tension spring 6.
1, it is configured to be pressed and biased to the left.

Further, in the vertical piece of the receiving metal fitting 54, there is provided a window hole 66 whose inner width is appropriately smaller than the distance between the two operating bodies 53a and 53b;
Long groove holes 67a, 67b are formed extending outward from the left and right inner ends 66a, 66b of the metal holder 5, through which the wires 47a, 47b pass.
4 is in the position where it has slid to the right, only the right operating body 53b is retracted from the opening hole 66, and when the receiving bracket 54 is in the position where it has been slid to the left, it is removed from the opening hole 66. It is configured such that only the left actuating body 53a moves backward.

Also, reference numeral 6 in FIGS. 7, 8, and 10
Reference numeral 8 indicates a lock plate provided on the front part of the upper surface of the bracket 49 so as to be slidable back and forth.The lock plate 68 has a V-groove 69 at its tip. The guide action of the pin 63 allows the receiving fitting 54 to be placed in the center position and maintained in this state, and the switching pin 61 is provided with a knob 70 for manual operation.

In this configuration, rice planting work uses the seedling planting device 9,
After the floats 15 and 16 have descended until they touch the field 42, the traveling vehicle body 1 is moved forward. If the switching piece 58 at 48 is rotated to the right with respect to the traveling direction of the traveling vehicle body 1 by holding the knob 70 corresponding to the switching pin 61 in your hand, the switching piece 58 is mounted between the switching pin 61 and the pin 63. Since the line of action of the spring 65 is on the right side of the center of the pivot shaft 51, the switching piece 58 comes into contact with the right side plate 49b of the bracket 49 under the force of the spring 65, as shown by the solid line in FIG. Rotating to the right, the receiving fitting 54 engaged with the pin 63 at its tip moves to the right, and only the right actuating body 53b is able to retreat through the extraction hole 66.

Then, when the seedling planting device 9 is lowered, the downward rotation of the marker operating lever 50 accompanying the downward rotation of the top link 20 causes the force of the coiled spring 46 provided on the pivot pin 45 of the right marker support rod 44b to be activated. As shown in FIG. 11, the right actuating body 53b moves backward from the receiving bracket 54, and as a result, the right marker support rod 44b falls and rotates outward, and the striped marker piece 43b at the tip thereof touches the field 42, so that at the same time the seedlings are planted by the seedling planting device 9, the marker streak line b for indicating the position where the traveling vehicle body 1 is to travel next is located on the right side of the field 42. It is attached by the pull marker piece 43b.

On the other hand, when the right actuating body 53b retreats, its inner piece 53b' comes into contact with the right inclined surface 58b of the switching piece 58, so that the switching piece 58
8 rotates to the left as shown in FIG. 11, the line of action of the spring 65 shifts to the left by the pivot 57, and the link 59 and the bracket 54 are pressed leftward by the force of the spring 65. However, since the right inner surface 66b of the extraction hole 66 of the receiving bracket 54 comes into contact with the outer piece 53b'' of the right operating body 53b in the retracted position,
The movement of the receiving fitting 54 to the left is blocked, and when the right actuating body 53b returns to its original forward position, it moves to the left.

As described above, when the rice planting work progresses to the edge of the rice field while marking the marker line b on the right side in the direction of travel, the seedling planting device 9 is once raised significantly, and the traveling vehicle body 1 is turned in the 180° direction. As the seedling planting device 9 is lowered, the traveling vehicle body 1 is moved along the marker line b to carry out the next rice planting operation.
The upward rotation of the marker operating lever 50 accompanying the upward rotation causes the right operating body 53b to be pulled forward, so that the right marker support rod 44b linked to this is rotated upright. When the right operating body 53b comes to the front side of the receiving metal fitting 54,
Since the movement of the bracket 50 to the left side by the outer piece 53b'' is released, the bracket 54 is moved by the spring 6.
65 and moves to the left as shown by the two-dot chain line in FIG. Then, when the seedling planting device 9 is lowered to begin rice planting work after the traveling vehicle body has turned, only the left actuating body 53a will be retreated from the opening hole 66 of the receiving bracket 54. , this time, the marker support rod 44a on the left side falls and rotates outward, and the striped marker piece 43a at the tip reaches the field scene 42.
It will be grounded to. Therefore, during rice planting work when the traveling vehicle body 1 travels along the marker streak line b, the marker streak line a is placed in parallel on the left side of the traveling direction by the left streak marker piece 43a, Hereinafter, the above-mentioned action, that is, the action of raising one marker support rod and lowering and rotating the other marker support rod, is automatically performed in conjunction with the lifting and lowering operation of the seedling planting device when turning in direction at the edge of the bank. It is possible.

In addition, during the rice planting work from the edge of the ridge to the edge of the ridge, if the seedling planting device 9 is raised and then lowered when replenishing seedling mats, etc., when the seedling planting device 9 is lowered next time, the right marker support rod 44b is The place where it should fall down and rotate is the marker support rod 44 on the left side.
The order is reversed as a falls and rotates, but in order to return to the original order, hold the knob 70 for the switching pin 61 in your hand and operate it to the right. Since it is in a state where only the actuating body 53b is allowed to move backward relative to the marker support rod 44b on the right side, the marker support rod 44b on the right side cannot be collapsed and rotated when the seedling planting device 9 is lowered next time. It can be done.

Note that if the lock plate 68 on the top surface of the bracket 49 is pushed backwards, the receiving metal fitting 5
4 is held at the center position, so even if the seedling planting device is raised or lowered in this state, both marker support rods 44a,
44b does not tilt outward and rotate. Further, the above embodiment was applied to a riding type rice transplanter, but when the seedling transplanting device is raised and lowered by vertical movement of the wheels that are supporting parts relative to the field, such as in a walking type rice transplanter, By rotating the marker actuating lever by moving the wheels up and down, the present invention can also be applied to a walk-behind rice transplanter.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of a riding rice transplanter, Fig. 2 is a plan view of Fig. 1, and Fig. 3 is a side view of a riding rice transplanter.
The figure is a vertical sectional front view of the connecting part of the seedling planting device to the traveling vehicle body, FIG. 4 is a sectional view taken from the side shown in FIG. - An enlarged view, Fig. 7 is a front view of the marker interlocking switching mechanism, Fig. 8 is a plan view of Fig. 7, Fig. 9 is a sectional view of Fig. 7, and Fig. 10 is a - of Fig. 7. A sectional view of FIG. 11 is a view showing the operating state of FIG. 9. 1... Traveling vehicle body, 9... Seedling planting device, 19... Hydraulic cylinder, 43a, 43b... Striped marker piece,
44a, 44b... Marker support rod, 47a, 47
b...Wire, 50...Marker activation lever, 5
3a, 53b...Operating body, 54...Bracket, 58
...Switching piece, 59...Link, 61...Switching pin, 65...Spring, 66...Extraction hole, 70...Knob.

Claims (1)

[Scope of utility model registration request] In a rice transplanter, a seedling transplanting device that moves up and down with respect to a supporting part such as a traveling vehicle body or wheels relative to a field scene is provided with marker support rods that are rotatable outward and have a striped marker piece at the tip on both left and right sides of the device, Of the two actuating bodies arranged adjacent to each other and substantially parallel, one of the actuating bodies and the marker support rod on the right side, and the other actuating body and the marker support rod on the left side are moved by the backward movement of each of the actuating bodies. The respective marker support rods are interlocked and connected so as to rotate outward, and both operating bodies are connected to the lifting mechanism of the seedling planting device, so that when the seedling planting device is raised, both operating bodies move forward and the seedlings are raised. When the implantation device is lowered, both actuating bodies move backward, and only one of the actuating bodies moves behind the two actuating bodies by moving in a direction that intersects the movement of the two actuating bodies. A receiving metal fitting is disposed to allow the backward movement of the actuating body, and when one of the actuating bodies moves backward and then moves forward, the receiving metal fitting is connected to the other actuating body. Further, the receiving fitting is provided with an automatic switching means configured to move the receiving fitting in a direction that allows the backward movement of one of the actuating bodies, and the receiving fitting is further provided with a means for allowing the backward movement of one of the actuating bodies in priority to the automatic switching means. 1. An actuating device for a striping marker in a rice transplanter, characterized in that it is provided with a manual switching means for moving it in a direction.