JP2546391B2 - Agricultural machine wire drawing marker device - Google Patents

Description

Description: [Industrial application] The present invention relates to a wire-drawing marker device of an agricultural work machine for drawing a line indicating a course direction of a next stroke in a field scene.

[Prior Art] As an example of the prior art, Japanese Utility Model Laid-Open No. 62-97512 discloses a laying posture in which the gyro rotates about a fulcrum provided on the machine body and falls to the outside in the left-right direction to be in a drawing action state. In an agricultural work machine in which the drawing markers that rotate upright so as to be in a drawing inactive state and that can be changed in a standing posture are provided on the left and right sides of the machine body, the drawing markers are the drawing markers, and the drawing markers are in the lying position. Energize in the fall rotation direction,
There was a wire-drawing marker device for a walking rice transplanter equipped with a biasing member that biases the wire-drawing marker in the upright posture in the upright posture. In this case, the urging direction of the urging tool to the wire drawing marker is provided so as to switch when the wire drawing marker is rotated between the lying posture and the standing posture, and the laying posture side is set in the rotation range of the wire drawing marker. It is provided so that it switches at a position close to.

[Problems to be Solved by the Invention] As in the above-described conventional technique, the urging direction of the urging member to the drawing marker is provided so as to switch at a position close to the laid-down posture side in the rotation range of the drawing marker. Then, when the drawing marker touches the paddy soil and rotates from the lying posture in the drawing action state to the standing posture, the rotation of the drawing marker to the standing posture is urged, and the mud attached to the drawing marker jumps up. There were times when I was caught by a pilot or fell on a seedling that had already been planted and killed that seedling.

In addition, in particular, it is equipped with a seedling mounting table with a high front side and a low rear side, and a transplanting device for dividing the seedlings mounted on the seedling mounting table on the lower end side of the seedling mounting table into individual fields and transplanting them into the field. In the passenger rice transplanter equipped with the work equipment with seedling planting located behind the driver's seat of the riding type vehicle body, if line drawing markers are provided on the left and right sides of the work equipment with seedling planting, the line drawing markers will be used. Although there is an advantage in that it can be stored compactly when it is stored in the front side along the inclination of, the conversely, when the wire drawing marker stands upright, it is rotated at a position behind the operator and toward the operator side. There was a problem that the mud that jumped due to the line drawing marker would go unnoticed on the operator's back without noticing it.

[Means for Solving the Problems] In order to solve the problems of the above-mentioned conventional technology, the invention of claim 1 rotates about a rotation fulcrum provided on the machine body, and
An agricultural work machine provided with wire drawing markers 18 on both left and right sides of the machine body, which can be rotated to fall to the outer side in the left-right direction to be in the line drawing action state and to stand up to the up position in which the line drawing is not in action In, the line drawing marker 18
In the falling posture, the drawing marker 18 is biased in the falling rotation direction, and in the standing posture, a biasing tool 21 for biasing the drawing marker 18 in the standing rotation direction is provided. The urging direction to the drawing marker 18 is provided so as to switch when the drawing marker 18 is rotated between the lying posture and the standing posture, and is also provided so as to be switched at a position close to the standing posture side in the rotation range of the drawing marker 18. This is a line drawing marker device for agricultural work machines.

According to the invention of claim 2, the working machine 3 of the agricultural working machine is placed on the seedling placing table 15 at the lower end side of the seedling placing table 15 in which the front side is inclined higher and the rear side is inclined lower. The seedling planting work machine 3 is equipped with a transplanting device 14 for dividing the seedlings into individual plants and transplanting them to the field, and the work machine 3 is placed behind the driver's seat 11 of the riding type vehicle body 1 and mounted. The drawing markers 18 are provided on both left and right sides of the working machine 3, and when the drawing markers 18 are in a standing posture, the drawing markers 18 are located in front of the seedling mounting table 15 in a side view and are drawn in a side view. The marker 18 is provided so as to be inclined toward the driver's seat 11 side.
The wire drawing marker device of the agricultural working machine described above was used.

[Operation and Effect of the Invention] The wire drawing marker device of the present invention is in a wire drawing operation state when it is laid down outward in the left-right direction, and is in a wire drawing non-operation state when standing upright. When in the lying position, the drawing marker 18 is biased in the falling rotation direction by the urging tool 21, and in the standing posture, the drawing marker 18 is urged by the urging tool 21.
Is urged in the standing rotation direction. Further, the urging direction of the urging tool 21 to the drawing marker 18 is switched when the drawing marker 18 is rotated between the lying posture and the standing posture, and moreover, the standing posture side in the rotation range of the drawing marker 18. Switch at a position close to.

Therefore, the invention of claim 1 is provided so that the urging direction of the urging member to the wire drawing marker is switched at a position close to the standing posture side in the rotation range of the wire drawing marker. When turning from the lying posture in the drawing action state to the standing posture while touching the ground, the momentum at the time of turning the drawing marker to the standing posture is suppressed, and the mud attached to the drawing marker jumps on the operator, It is prevented that the seedlings that have already been planted fall down and fall down.

In addition, the invention of claim 2 divides the seedling placing table 15 inclined frontward and lower rearward, and the seedlings placed on the seedling placing table 15 at the lower end side of the seedling placing table 15 one by one. Transplanting device for transplantation in the field
In the riding rice transplanter equipped with the seedling planting work machine 3 provided with 14 located behind the driver's seat 11 of the riding type vehicle body 1, the line drawing markers provided on both the left and right sides of the seedling planting work machine 3.
The 18 is compactly stored in the standing posture, and the splash of mud to the operator can be reduced when the drawing marker 18 is rotated to the standing posture.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

Reference numeral 1 denotes a riding-type traveling vehicle body, to which a seedling planting work machine 3 is connected to a rear side via a link 2.

The traveling vehicle body 1 is provided with a pair of left and right front wheels 4, 4 and a pair of left and right rear wheels 5, 5 and an engine 6 is mounted between the front wheels 4, 4 and rear wheels 5, 5 in a plan view. Engine 6
Is decelerated by the mission 7, one of which is transmitted to the wheels 4, 4, 5 and 5 for driving the traveling system, and is also transmitted to the seedling planting working machine 2 for driving the working machine system. Further, the hydraulic cylinder 8 which is transmitted to the hydraulic pump as a hydraulic system drive and causes the link 2 to move up and down is operated.

Further, the traveling vehicle body 1 is provided with a step floor 9 substantially horizontally above the front wheels 4 and 4, and the floor 9 is formed integrally with an engine cover 10 covering the engine 6. A driver's seat 11 is arranged above the engine cover 10, and a steering handlebar 12 is provided upright from the floor 9 in front of the seat 11. The handle 12 is connected to the front wheels 4 and 4 on the lower side via a rod or the like, and the front wheels 4 and 4 rotate left and right in response to the steering rotation of the handle 12.

The link 2 includes a vehicle body side link base 2a fixed to the rear side of the traveling vehicle body 1, a working machine side link base 2b rotatably supported by a connecting shaft 13 on the working machine 3 side, and an upper composed of a leaf spring. Low link consisting of link 2c and columnar member
It is a parallel link composed of 2d and. The link 2 is configured such that the working machine side link base 2b swings up and down around the vehicle body side link base 2a as a fixed rotation center by the operation of the hydraulic cylinder 8. That is, the lower end of the hydraulic cylinder 8 on the cylinder portion 8a side is pivotally supported on the rear side of the vehicle body 1,
The piston rod 8b portion is connected to the upper link 2c, and the upper link 2c pivots up and down with the fuselage side link base 2a as the pivot center by the projecting and retracting movement of the piston rod 8b from the cylinder 8a. Further, as shown in FIG. 4 and FIG. 5, V is attached to the front end of the connecting shaft 13 of the working machine 3.
When the rolling control tool 13a of the character-shaped member is fastened and fixed by bolts and the working machine 3 is lifted by the hydraulic cylinder 8, the rolling control tool 13a is in a state of sandwiching the lower link 2d. The rolling motion of is regulated. When the working machine 3 descends and the rolling restricting tool 13a comes off the lower link 2d, the working machine 3 can freely perform the rolling operation with respect to the working machine side link base 2d.

The seedling planting work machine 3 is a four-row planting machine, and transplanting devices 14, 14, 14, 14 for planting the seedlings one by one and planting them in the field and seedlings are supplied to the transplanting device 14 ... Seedling stand 15 that moves back and forth on the left and right, and transplanting devices 14… and seedling stand 15
And a planted transmission case 16 provided with a transmission mechanism for driving the. Further, 17 is a leveling float, which is hung and supported below the planting transmission case 16, and slides while leveling on the mud surface of the field.

Reference numeral 18 is a wire drawing marker, which is a rod-shaped member that is bent in an L shape, and is provided on both left and right sides of the transmission case 16 of the work unit 3 for planting seedlings. The tips of the markers 18, 18 lying down and bent come into contact with the mud surface of the field, and are dragged forward by the forward movement of the traveling vehicle body 1 to draw a wire.

As shown in FIG. 3, the markers 18, 18 are fixed to the support plate 19 at their bases by bolting. The support plate 19 is rotatably engaged with a support pin 20a protruding toward the front side of a marker support rod 20 fixed to both sides of the planted transmission case 16 and attached thereto. 21 is a biasing member such as a coil spring, which is a support plate
The urging tool 2 is attached to the urging tool mounting pin 19a protrudingly fixed to 19 and to the urging tool mounting pin 20b protrudingly fixed to the marker supporting rod 20.
1 is hooked and installed. This urging tool 21
Directly act on the support plate 19 and apply an urging force to the rotational movement of the marker 18. That is, when the marker 18 is in the laid-down posture L in which the drawing action can be performed, the line of action of the force with which the biasing device 21 pulls the support plate 19 (the line connecting the biasing device mounting pin 19a and the biasing device mounting piece 20b). Is located below the support pin 20a of the mounting rotation fulcrum branch of the support plate 19, and the urging tool 2
Energize 1 so that it rotates in the falling direction. Conversely, marker 1
When 8 is in the standing posture S stored so as not to draw the wire, the pulling action line of the urging tool 21 is located above the support pin 20a, and the urging tool 21 is urged to rotate in the upright direction. To do. Then, the line of tension of the biasing device 21 is changed to the support pin 20.
When a is overlapped with a (the direction in which the biasing tool 21 is rotationally biased with respect to the marker 18 is changed, that is, the boundary point at which the biasing in the standing direction and the biasing in the fall direction are switched), the marker 18 turns in the SL. The urging tool mounting pin 19a and the urging tool mounting side 20b for the support pin 20a are arranged so that the moving position is a position in which the marker 18 is erected and rotated to a position closer to the standing posture.

22 is a fall-down operation tool, one end of which is connected to the support plate 19 and the other end of which is a grip portion that the operator holds when pulling by hand.
22a is provided, and the gripping portion 22a is a rod extending to a position where an operator driving and operating in the driver's seat 11 can easily reach and grab the grip 22a. It is slidably pierced and supported by the hole of the operation tool support piece 15b fixed to 15a. By pulling the operation tool 22, the support plate 19 rotates in the laying direction, and the marker 18 can be moved to the laying posture L.

Reference numeral 23 denotes a marker retracting device, which is a device for retracting the marker 18 from the fallen posture L to the standing posture S in association with the raising / lowering operation of the working machine 3. That is, the pullback device 23 includes the wire 24.
One end of the inner 24a of the is connected to the support plate 19 of the marker 18, and the other end is connected to the piston rod of the hydraulic cylinder 8.
When the marker 18 is in the laid-down posture when the piston rod 8b is connected to the cylinder 8a and is projected from the cylinder 8a, the inner wire 24a pulls the support plate 19 to rotate the marker 18 in the standing direction. Also, the outer 24b of the wire 24
On the marker 18 side is fixed to the outer fixing piece 20c fixed to the marker supporting rod 20 with a screw, and on the hydraulic cylinder 8 side is fixed to the cylinder portion 8a. The operation of the embodiment configured as described above will be described. First, in the case of reciprocating and planting in the field with the riding rice transplanter, the marker 18 at the planting position in the next step is brought into the drawing action state. That is, the operator grabs the grip portion 22a of the unplanted marker laying-down operation tool 22 by hand from the cockpit 11 and pulls it to lay down the marker 18. When the operating tool 22 is pulled until the urging direction of the urging tool 21 to the marker 18 is switched to the laying direction, the urging tool 21 causes the marker 18 to lay down and rotate so that the marker 18 can be drawn. In that state, the marker 18 is drawn and the planting work proceeds.

When the planting work in the process is completed, the seedling planting work machine 2 is raised. At that time, as the piston rod 8b of the hydraulic cylinder 8 projects, the pullback device 23 operates, that is, the inner 24a of the wire 24 is pulled by the piston rod 8b, and is connected to the other end of the inner 24a. The support plate 19 is pulled and rotated in the standing direction, and the marker 18 stands up. As a result, the marker 18 which has been drawing is brought into a state where it is not drawing. After turning to the planting position for the next stroke, the marker 18 on the opposite side to the previous stroke is drawn in the same manner as the previous stroke. Then, using the line drawn by the marker 18 in the previous process as a guide, the planting work for the return process is started.

As described above, the urging tool 21 provided on the marker 18 not only urges in the falling direction so as to maintain the drawing action state in the lying posture, but also in the standing direction so as to maintain the drawing non-action state in the standing posture. Since the marker 18 is mounted so as to also act as a bias, it is not necessary to separately provide a lock device for keeping the marker 18 in an upright state so as not to fall down. As a result, the number of parts is reduced by that amount, the structure of the marker device is simplified, and failure is less likely to occur. In addition, since the number of parts is reduced, the cost is also reduced and it is economical.

Further, when the marker 18 is pulled back in the standing direction, the biasing direction of the biasing tool 21 with respect to the rotation of the marker 18 is switched from the fall direction to the standing direction, and the position where the marker 18 is further raised from the middle of the rotation range. To switch. As a result, when the tip end of the marker 18 in the drawing action portion floats away from the paddy field scene, its momentum is not urged by the urging device 21, so that the jumping up of mud at the tip end of the marker 18 is suppressed. When the urging direction of the urging device 21 is switched to the standing direction of the marker 18, the marker 18 is pulled back to a position close to the standing posture, so the mud that the tip of the marker 18 has lifted by that time falls due to its own weight. To do.

Although the embodiment of the wire-drawing marker device equipped in the riding type rice transplanter has been described above, the target of the implementation may be an agricultural work machine equipped with a work machine such as a seeder or a fertilizer instead of the transplant work machine.

[Brief description of drawings]

 The figure shows an embodiment of the present invention. Fig. 1: Side view showing the whole Fig. 2: Plan view showing the whole Fig. 3: Front view showing the operating state of the main part Fig. 4: Side view showing the main part Fig. 5: Cross section showing the main part A main thing of the code | symbol in a front view figure is demonstrated. 1: Riding type vehicle body 3: Working machine with seedling planting 11: Driver's seat 14: Transplanting device 15: Seedling platform 18: Line marker 21: Energizer

Claims (2)

(57) [Claims] 1. A laid posture in which the pallet is rotated about a fulcrum provided on a machine body and falls to the outside in the left-right direction so as to be in a drawing action state, and an upright posture in which it stands upright to be in a non-drawing action state. In an agricultural work machine in which the drawing markers 18 that rotate so that the posture can be changed are provided on both left and right sides of the machine body, the drawing markers 18 are urged in the falling rotation direction when in the laid posture, and when in the standing posture. Is provided with a urging tool 21 for urging the drawing marker 18 in the standing rotation direction, and the urging direction of the urging tool 21 to the drawing marker 18 is the rotation between the lying posture and the standing posture of the drawing marker 18. A wire-drawing marker device for an agricultural work machine, which is provided so as to switch when moving, and is provided so as to switch at a position close to a standing posture side in a rotation range of the wire-drawing marker 18. 2. A working machine 3 of an agricultural working machine, a seedling mounting table 15 in which the front side is high and the rear side is low, and a seedling mounting table at the lower end side of the seedling mounting table 15.
A seedling planting work machine 3 provided with a transplanting device 14 for dividing the seedlings placed on 15 into individual plants and transplanting them into the field,
Is placed on the rear side of the driver's seat 11 of the riding type vehicle body 1, and the line drawing markers 18 are provided on both left and right sides of the working machine 3. When the line drawing markers 18 are in an upright posture, the line drawing markers are seen in a side view. 18 is located in front of the seedling mounting table 15,
The wire drawing marker device for an agricultural working machine according to claim 1, wherein the wire drawing marker 18 is provided so as to be inclined toward the driver seat 11 side in a side view.