JPS6317289Y2 - - Google Patents

Description

[Detailed description of the invention] This invention has a line-drawing marker for carving the next traveling reference line on the mud surface on the side of the planting device, which can be driven up and down with respect to the traveling machine, in a working position and a non-working position floating above the ground. This invention relates to a line-drawing marker operating device for a riding rice transplanter, in which an operating rod for changing the posture of the line-drawing marker is provided in a state where the operating knob is located near the control section.

In this type of line-drawing marker operating device for a riding rice transplanter, the distance from the control section of the traveling body to the operating knob of the operating rod relative to the line-drawing marker increases as the planting device moves up and down based on changes in the depth of the tiller. Because of this, the operator must operate the control rod in an unreasonable position with his or her upper body leaning out from the control section when changing the posture of the line marking marker, especially during rice planting in fields with shallow plowing depths. In addition, in the case of fields where the plowing depth is large, there is a problem in that the knob of the operating rod is too close to the control section, making it difficult to operate.

In addition, in order to solve such operational problems, as shown in FIG.
3' is composed of a rod part 13B' on the operation knob 13A' side and a rod part 13C' on the marker 7 side, which can be expanded and contracted as the planting device 2 moves up and down. Rod part 13
While supporting B′ on the planting device 2 side,
A mechanism 18' for fixedly connecting the rod parts 13B' and 13C' is provided so that the rod parts 13B' and 13C' can be fixed and released, and by adjusting the expansion and contraction of the rod parts 13B' and 13C', the distance from the control part to the operation knob can be approximately reduced. It is conceivable to adopt a configuration in which the plowing depth is held constant, but in this case, each time there is a change in the plowing depth, it would be necessary to descend from the traveling machine to the field and adjust the expansion and contraction of both rod parts one by one. There are some troubles that cannot be avoided.

In view of the above-mentioned circumstances, an object of the present invention is to enable the operator to quickly and easily change the posture of the line marking marker from the control section in a comfortable posture, regardless of the raising and lowering of the planting device. In the above-mentioned device, the operating rod is composed of a rod part on the operating knob side and a rod part on the marker side, which are expandable and retractable as the planting device moves up and down. The rod portion on the knob side is supported on the traveling body side, and
The present invention is characterized in that a mechanism is constructed between the two rod parts, which allows the two rod parts to be moved integrally in the longitudinal direction by rotation of the operating knob over the entire range of expansion and contraction.

That is, in the case of the present invention, both the rod sections are automatically expanded and contracted by utilizing the distance change between the planting device and the traveling aircraft as the planting device moves up and down, and the operation is performed from the control section. Not only can the distance to the knob be kept constant at all times, but also by simply rotating the operating knob, the two rods can be switched to a state where they can be moved integrally in the longitudinal direction. As mentioned above, there is no need to step down from the traveling machine to the field every time there is a change in the depth of the plow, and the posture change operation of the line marking marker can be performed quickly, easily, and safely from the control section in a comfortable posture. I've reached it.

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in FIG. 1, a parallel four-link mechanism 3 for driving the planting device 2 up and down with respect to the traveling body 1 while maintaining a constant or almost constant ground posture;
The planting device 2 is connected to the parallel quadruple link mechanism 3 so that the rolling center to allow left and right planting swing of both 2 and 3 is the center of the width of the machine body, and the grounding float 4 of the planting device 2 is The planting device 2 is provided with a hanging link mechanism 5 that is suspended near the ground surface and has an inverted trapezoid shape when viewed from the front, and the planting device 2 is provided with a pair of left and right line markings for marking the next running reference line on the field surface. The marker 7 can be freely switched between an active position in which it projects laterally outward, a non-active position in which it floats above the ground on the side of the aircraft, and a retracted position in which it is further retracted from this non-active position to a state along a vertical or nearly vertical direction. In the riding rice transplanter installed in the rice transplanter, the posture switching device for the line drawing marker 7 is constructed as follows.

That is, as shown in FIG.
With respect to a frame 8 fixed to a planting transmission case 6, the marker 7 is configured to be able to swing vertically around the front-rear axis P, and a first spring 9 is provided to move and bias the marker 7 to the above-mentioned working position. In addition, the frame 8 is provided with a lock that is fitted from above to a pin 10 fixed near the swinging base end of the marker 7 to lock and hold the marker 7 in the non-operating position and the retracted position. The members 11 are pivotally attached in a state where they are swingingly biased in the engagement direction via the second spring 12, and the lock member 11 is separated from the pin 10 against the biasing force of the second spring 12. Accordingly, the operating rod 13 for switching the marker 7 to the operating position using the biasing force of the first spring 9 is provided with its operating knob 13A located near the rear of the driver's seat 14 of the traveling aircraft body 1, and further , in the top link 3A of the parallel quadruple link mechanism 3, the rear end portion 3a and the marker 7 whose vertical relative position with the hanging link mechanism 5 changes as the parallel quadruple link mechanism 3 moves up and down;
When the planting device 2 is raised above the ground above the planting work range, the marker 7
A wire 19 is stretched for switching the position to the non-acting position against the biasing force of the first spring 9.

The operating rod 13 is connected to an operating knob 13 that is expandable and retractable as the planting device 2 moves up and down.
It consists of a rod part 13B on the A side and a rod part 13C on the marker 7 side, of which the operation knob 13
The rod portion 13B on the A side is supported through a bracket 17 fixed to the fender 16 for the pair of left and right driving rear wheels 15 of the traveling machine body 1 so as to be rotatable and movable in the longitudinal direction thereof, and both the rod portions 13B, A mechanism 18 is provided between the rod parts 13C and the rod parts 13B and 13C, which can integrally move the rod parts 13B and 13C in the longitudinal direction by rotating the operation knob 13A over their entire range of expansion and contraction.

The mechanism 18 includes a rod portion 13C on the marker 7 side and a rod portion 1 on the operation knob 13A side.
A long hole 18B is formed which fits and engages a pin 18A fixed to the rod portion 18A to allow the expansion and contraction movement of both the rod portions 13B and 13C within a certain range.
On one side of the peripheral portion of 8B is the operation knob 1.
A plurality of locking portions 18C are formed to engage with the pin 18A by rotation of 3A.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the line-drawing marker operating device for a riding rice transplanter according to the present invention, and FIG. 1 is an overall side view of the riding rice transplanter, FIG. 2 is an enlarged view of the main parts, and FIG. It is a partially cutaway side view of the operating device devised during development. 1... Traveling body, 2... Planting device, 7... Line drawing marker, 13... Operation rod, 13A...
Operation knob, 13B, 13C...Rod part, 18
……mechanism.

Claims (1)

[Scope of utility model registration request] On the side of the planting device 2 which can be driven up and down with respect to the traveling body 1, a line drawing marker 7 for marking the next traveling reference line on the mud surface is attached so as to be switchable between a working position and a non-working position floating above the ground. This line drawing marker operating device for a riding rice transplanter is provided with an operating rod 13 for changing the attitude of the line drawing marker 7 in such a state that its operating knob 13A is located near the control section, and the operating rod 13 is connected to the planting device. The rod part 13B on the operation knob 13A side and the rod part 13C on the marker 7 side are expandable and retractable as the marker 2 moves up and down.
Of these, the rod portion 13B on the operation knob 13A side is supported on the traveling machine body 1 side, and between both rod portions 13B and 13C, the operation knob 13A is provided over the entire range of expansion and contraction thereof.
A mechanism 18 capable of integrally moving both rod parts 13B and 13C in their longitudinal direction by rotation of
A line drawing marker operating device for a riding rice transplanter, comprising: