JPS647Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a line-drawing marker for a riding rice transplanter, and in particular, the line-drawing marker is operated in conjunction with an operating lever for raising and lowering a rice transplanter. This relates to a line marker.

[Prior art] In a riding rice transplanter, seedlings are planted while the rice transplanting machine is towed by a traveling vehicle carried by an operator. While doing this, it is normal to draw a line on the field with a line marker to serve as a steering indicator for the next return trip of the rice transplanter. The line-drawing markers are provided on the left and right sides of the vehicle so that they can move forward and backward, and only one of the required sides enters the field, while the other line-drawing marker is in the retracted position. It is troublesome to move the line marker forward and backward every time the rice transplanter turns, so conventionally the line marker has been moved forward and backward in conjunction with the lifting lever that lifts and lowers the rice transplanter. An automated system that ensures that one line marker is always activated when the work equipment is lowered is
For example, it is known from Japanese Utility Model Application Publication No. 52-29821.

[Problems to be solved by the invention] By the way, in the prior art described above, in the first planting process in which the rice transplanter performs the planting work along the edge of the ridge, and in the last planting process, the rice transplanting work is carried out using the lift lever. After the machine has been lowered, the line-drawing marker that is in contact with the ridge must be retracted to a non-operating state by some operation, which is troublesome, and if this is forgotten, the marker may be damaged. There were some drawbacks.

[Means for Solving the Problems] The present invention was developed in view of the above-mentioned circumstances, and is designed to move freely toward the left and right sides of the rice transplanter and draw lines on the field that serve as steering indicators for the rice transplanter. In a rice transplanter equipped with a pair of left and right markers for drawing, due to the raising and lowering operation of the operating lever that raises and lowers the rice transplanting work machine of the rice transplanter, the markers can be in an active state where they draw a line and a non-active state where they are not drawn. The left and right markers remain inactive when the operating lever is simply rotated back and forth without being moved to the left or right to cause the rice transplanter to descend. A left marker non-action state in which only the left marker is switched to the active state when the marker is displaced to the left when operating back and forth, and an operation where the marker is displaced to the right when operating back and forth. When , only the right marker is switched to the operating state, and the right marker operating state is interlocked so that three modes of selection switching are possible, and when the operating lever is operated to raise the rice transplanting machine, The present invention is characterized in that the markers are interlocked so that the left or right marker in the active state returns to the non-active state.

[Function] With the above configuration, the line drawing marker of the present invention has the following effects:
It is possible to selectively put the left and right markers into an active state and a non-active state, and the left and right markers can also be set into a non-active state at the same time, so even when planting at the edge of a ridge, the markers can be turned into a non-active state and damaged by normal operation. can be prevented.

[Example] The present invention will be explained below with reference to an illustrated example.

FIG. 1 shows a front view of a riding rice transplanter vehicle 1, and on both sides of the vehicle are a left-hand line drawing marker 2.
In the illustrated state, the line drawing markers 2 and 3 are not in use and are retracted to their respective retracted positions.
are fixed to the free ends of arm members 6, 7 via wires 4, 5, respectively, and the bases of both arm members 6, 7 are pivotally attached to a support member 8 of the traveling vehicle. One end of wires 9, 10 is secured to arm members 6, 7, respectively, thereby preventing line drawing markers 2, 3 from rotating in the direction of the arrows, and the other end of wires 9, 10 is connected to a drive lever portion, which will be described later.

In FIG. 2, the hydraulic lever guide member 11 includes three elongated guide grooves 12 parallel to each other,
13 and 14 are provided, and at one end thereof, an elongated guide groove 15 is provided that enables movement to the three guide grooves 12, 13, and 14, and a hydraulic lever 16 is provided in the guide groove 12. Penetrating. This hydraulic lever 16 performs a switching action on a hydraulic switching valve (not shown) to raise and lower the rice transplanting machine (not shown), and when it is in the position shown in FIG. 2, it is in the raised state. If you move it upward in the figure, it will be in a lowered state. A boss 18 is pivotally attached to a shaft 17 attached to the hydraulic guide member 11, and the base of a hydraulic lever 16 is pivotally attached to this boss 18.
6 is pivotally attached to the boss 18 so that it can be tilted laterally, that is, can be rotated left and right in FIG.

In FIG. 3, the aforementioned wire 9 is supported by fixing a tube 19 covering it to a support member 21, and the end portion thereof is
The base of the drive lever 23 is pivotally attached to the lower end of the wire trigger 22, and the base of the drive lever 23, to which the upper end of the wire trigger 22 is pivoted, is fixed to a boss 24 (see FIG. 4) pivotally attached to the shaft 17. has been done.

In FIG. 4, the upper end of the wire trigger 25 to which the end of the other wire 10 is pivoted is pivoted to a similar drive lever 26.
A boss 27 having a fixed base is pivotally mounted on the opposite side of the boss 24. In addition, the wire trigger 2
A wire trigger 28 similar to 2 and 25 is provided in the center, and its upper end is pivotally connected to the hydraulic lever 16, and its lower end is pivotally connected to a wire 29 connected to the hydraulic pressure switching valve. Each of the above drive levers 23, 2
An interlocking guide member 3 having a recess at the free end of 6
1 and 32 are fixed respectively, and the guide groove 1
3 and 14, and each recess of the interlocking guide members 31 and 32 allows the hydraulic lever 16 to freely move forward and backward when located in the guide groove 15, as shown in FIG. It's summery.

In the device configured as described above, in order to move only the rice transplanting machine (not shown) up and down with the left and right line markers 2 and 3 in the retracted position, that is, in the inactive state, hydraulic pressure is required as described above. lever 16,
It may be moved back and forth (up and down in FIG. 2) within the guide groove 12. When the rice transplanter plants seedlings near the ridge, if the line marker 2 or 3 is activated, it will come in contact with the ridge and the marker will be damaged. I do.

When planting seedlings and wishing to draw a line in the field to the left of the operator, move the hydraulic lever 16 from the position shown in FIG. 2 to the guide groove 15.
2 to the left to fit into the recess of the interlocking guide member 31, and then move it upward in FIG. As a result, the rice transplanting machine descends and touches the upper surface of the field, and the wire trigger 22 descends to loosen the wire 9 by rotating the drive lever 23 in the counterclockwise direction in FIG. As a result, the left-hand line drawing marker 2 shown in FIG. 1 rotates clockwise in the figure, enters the field, and draws a line on the field as the traveling vehicle 1 advances. When the direction of rice planting is reversed after finishing the planting of seedlings on the outward trip, the line marker 2 can be retracted to the original retracted position as the rice transplanting machine is raised by simply returning the hydraulic lever 16 to the lift position.

Furthermore, when operating the line drawing marker 3 on the opposite side, the hydraulic lever 16 is moved along the guide groove 15 and fitted into the interlocking guide member 32, and the drive lever 26 is rotated in conjunction with the hydraulic lever 16. By doing so, the same effect as in the case of the line marker 2 can be obtained.

[Effects of the invention] As described above, according to the invention, the operation lever for raising and lowering the rice transplanting machine can be rotated in three directions: a simple forward and backward rotation operation including shifting to the left, and a forward and backward rotating operation including shifting to the right. By operating the mode, when lowering the rice transplanting machine, it is possible to switch between three modes, one in which the left and right markers are held inactive, and the other in which the left and right markers are individually activated, so that no erroneous operation occurs. Also, when raising the rice-transplanting machine, the active left or left marker is linked to the inactive state, so when performing rice-planting work near the ridge, the first planting process and the final planting process can be adjusted. By holding both the left and right markers in a non-active state during the marking process, it is possible to reliably prevent the markers from coming into contact with the ridge and being damaged. Furthermore, since the operation of switching both markers to the inactive state can be performed with a single normal operation of the operating lever, the operation is simple and the usability is improved.

[Brief explanation of drawings]

Figure 1 is a front view of the traveling vehicle of the riding rice transplanter;
3 is a plan view of the hydraulic lever operating section, FIG. 3 is a view taken along arrow A in FIG. 2, and FIG. 4 is a view taken along arrow B in FIG. 2. 1... Running vehicle body, 2, 3... Line marker, 1
1...Hydraulic lever guide member, 12, 13, 1
4, 15...Guide groove, 16...Hydraulic lever, 1
7... Axis, 9, 10, 29... Wire, 22,
25, 28... wire trigger, 23, 26... drive lever, 31, 32... interlocking guide member.

Claims (1)

[Scope of utility model registration request] In a rice transplanter that is equipped with a pair of left and right markers that move freely toward the left and right sides of the rice transplanter and draw lines on the field that serve as steering indicators for the rice transplanter, the rice transplanter's rice transplanting machine is raised and lowered. When the marker is switched between an active state in which a line is drawn and a non-active state in which a line is not drawn due to the vertical movement of the control lever, the control lever is simply rotated back and forth without being displaced from side to side. When the rice transplanter is operated to move downward, the left and right markers are held in the inactive state, and when the rice transplanter is moved back and forth, the rice transplanter is moved to the left. There are three modes: a left marker action state in which only the left marker is switched to the action state, and a right marker action state in which only the right marker is switched to the action state when the right marker is displaced to the right during forward and backward operations. A riding rice transplanter that is interlocked to enable selection switching, and further configured to be interlocked so that when the operation lever is operated to raise the rice transplanting machine, a marker in an activated state on the left or right side is returned to an inactive state. line marker.