JP2000300011A - Line-drawing marker for rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obviate such a problem involved in a rice transplanter designed to suspend planting unit in a vertically movable way via a lift link mechanism on the rear portion of a travel vehicle body and dispose a line-drawing marker on the side of the planting unit in an outwardly turnable manner, that the marker may interfere with other member(s) when the planting unit is being in vertical motion, resulting in longer time for the downward turning of the marker itself. SOLUTION: This problem is resolved by such a scheme that, a marker stopper 110 for seizing a line-drawing marker 130 at such a position as to have turned the marker upward is provided with a plurality of locking recesses to enable the marker to be seized in several steps of angle and also ensured to operate so as to be out of actuation from a steering section, and furthermore, the position of housing the marker 130 by turning it upward is ensured not to overlap the upper part thereof with a fertilizer applicator when viewed from the rear.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawing marker mounted on a side of a planting section of a riding rice transplanter for drawing a field.

[0002]

2. Description of the Related Art Conventionally, as a drawing marker in a riding type rice transplanter, a spatula-shaped plate for drawing is fixed to one rod-shaped tip and rotatably provided on both right and left sides of a planting portion. I was A lock mechanism is provided near the rotation base of the drawing marker. The locking mechanism is locked at a position where the drawing marker is lifted upward, an unlock operation is performed by a lever at hand of an operator, and the drawing marker is tilted outward to draw a wire. Work was done. There is also known a technique in which an upper middle part of a drawing marker is hooked and housed in the body width so as to prevent the drawing marker from spreading outward when moving or storing outside a field.

[0003]

However, when the line drawing marker is stored and locked by the lock mechanism and the planting work is performed at the end of the field or at the edge of the ridge, the line drawing marker tip is directed outward from the planting width. And was in the way. That is,
The position where the drawing marker is locked by the lock mechanism is not the position vertically turned but the position slightly spread outward, and the spatula portion above the drawing marker projects obliquely outward and downward, and furthermore, the spatula by its own weight. The rod-shaped body that supports the part is bent, and the line drawing marker is caught by obstacles such as trees and walls on the ridge during planting work such as ridges and circulating at the edge of the field, bending and deforming, and moving the drawing marker downward. In some cases, it is impossible to perform an accurate drawing operation even by rotating, or even if the bent drawing marker is rotated upward again, it cannot be locked by the lock mechanism or hooked on the hook. In addition, in the planting work such as at the ridge, it was possible to perform the planting work by manually hooking the drawing marker on the hook so as not to spread outside the seedling mounting table, but moved to the next article and planted In some cases, even when the operator releases the lock by operating the lever at hand at the time of starting the operation, the drawing marker does not fall out and drawing cannot be performed in some cases.
At the position where the drawing marker is hooked on the hook and stored within the machine width so that it does not protrude from the seedling mounting table or side bumper, take care that the drawing marker does not interfere with other members such as fertilizer. It was complicated because it had to be stored.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. Specifically, in a rice transplanter in which a planting portion is suspended from a rear portion of a traveling vehicle body via a lifting link mechanism so as to be able to move up and down, and a drawing marker is disposed on a side portion of the planting portion so as to be rotatable outwardly, A plurality of locking recesses are provided in a marker stopper which locks the marker at a position rotated upward, so that the marker stopper can be locked at several angles, and the marker stopper can be released from the operation unit. Further, in the storage position where the drawing marker is turned upward, the upper part of the drawing marker and the fertilizer applicator are set at a position where they do not overlap in rear view.

[0005]

Next, an embodiment of the present invention will be described. FIG. 1 is an overall side view of a rice transplanter provided with a planting frame of the present invention, FIG. 2 is a rear view of a divided seedling mounting table stored on a main seedling mounting table, FIG. 3 is a side view of a planting section, and FIG. Fig. 5 is a partially cutaway front view showing a drawing marker supported by a side bumper.
FIG. 6 is a front view of the drawing marker at the storage position, FIG. 6 is a partial front view showing a support structure of the drawing marker, FIG. 7 is a partial plan view, FIG. 8 is a front view of the marker stopper, FIG. FIG. 5 is a rear view showing the positional relationship between the drawing marker at the storage position and the fertilizer applicator.

First, an embodiment in which the planting frame of the present invention is applied to an eight-row riding rice transplanter will be described with reference to FIG. In the riding rice transplanter A, a planting section 4 is disposed at a rear portion of a traveling section 1 via an elevating link mechanism 27. The traveling section 1 has an engine 2 mounted above a front portion of a body frame 3 and a front axle is disposed at a lower front portion. The front wheel 6 is supported via a case, and the rear wheel 8 is supported via a rear axle case 7 at the rear. And the engine 2 is a bonnet 9
On both sides of the bonnet 9
The steering handle 14 is disposed on the dashboard 5 at the rear of the hood 9, and the vehicle body cover 12 covers both sides of the hood 9 and the body frame 3 at the rear thereof. The seat 13 is arranged, and both sides of the hood 9, the front part of the seat 13, the left and right sides of the seat 13 and the rear of the seat 13 are set as steps.

On the side of the driver's seat 13, a traveling speed change lever 30, a sub-transmission lever 31 for planting up / down and work traveling speed change, and a planting sensitivity adjusting lever are arranged. A clutch pedal 32 and left and right brake pedals are arranged, and an eight-row fertilizer 33 is arranged behind the seat 13.

As shown in FIGS. 1 and 3, the planting section 4 includes a seedling table 16, a planting claw 17, and a center float 34.
The seedling table 16 is disposed at a front height and a low level. The lower part of the seedling table 16 is reciprocated left and right by a lower guide rail 18 and an upper part of the front is an upper guide rail 19. The lower guide rail 18 is slidably supported.
The upper guide rail 19 is supported by a planting center case 20 via a planting frame 23 and the like. And
A connecting pipe (not shown) protrudes from the planting center case 20 to the left and right sides to fix the chain case 21, and the chain cases 21, 21...
A rotary case 22 for rotating in one direction is arranged at the rear of the chain case 21, and a pair of planting claws 17 are arranged on both sides of the rotary case 22. In this manner, the seedling table 16 is reciprocally slid left and right with forward traveling, and the planting claws 17 are driven in synchronization with the reciprocating motion to cut out one seedling of seedlings so that the planting operation is continuously performed. Make up.

The planting center case 20 is connected to the lifting link mechanism 27 via a rolling fulcrum shaft at the front of the planting center case 20. The lifting link mechanism 27 comprises a top link 25, a lower link 26 and the like. The planting section 4 can be moved up and down by an elevating cylinder 28 arranged below.

As shown in FIG. 2, the seedling mounting table 16 is divided into two rows on the right outer side in the traveling direction to form a divided seedling mounting table 16D. Is set as a main seedling mounting table 16M.
D is configured to be detachable, the divided seedling mounting table 16D is detached, mounted on the rear portion of the main seedling mounting table 16M, engaged, and housed.

As shown in FIGS. 4 to 6, a side bumper 85 is provided above the front of the left and right outer chain cases 21.
Are slidably supported left and right. A second U-shaped guide 97 is disposed on the front upper portion of the chain case 21 via a stay 121 and the like. Further, a first U-shaped guide 96 is arranged via a stay 88 from below the vertical rod 23b of the planting frame 23 supporting the seedling mounting table 16. The first U-shaped guide 96 and the second U-shaped guide 97 have the same left and right axes, and have different inclinations in the front-rear direction. The long pipe 85c of the side bumper 85 is slidably inserted. From the outer end of the long pipe 85c of the side bumper 85, as shown in FIG.
The lower guide rail 18 is extended outwardly to protect the lower part of the seedling mounting table 16 from collision from the side at the time of planting work on the ridge or over the ridge.

A fin portion 85a is provided vertically from the upper surface of the long pipe portion 85c, and a knob screw 86 screwed to the U-shaped guide 97 is fitted in a guide groove 85b opening in the left-right direction of the fin portion 85a. The fin portion 85a can be fixed by tightening the knob screw 86, and can be fixed at a predetermined position after loosening and sliding the side bumper 85 left and right. When the side bumper 85 is stored as shown by the two-dot chain line in FIG. 6, the extended lower guide rail is rotated forward and stored, and the width of the left and right sides is reduced in accordance with the storage of the seedling mounting table 16. ing.

The drawing marker 130 is supported by the side bumper 85 projecting outward in the left-right direction so as to be stowable and extendable. That is, as shown in FIGS. 4 to 7, at a position near the outer end of the long pipe portion 85 c of the side bumper 85,
The undulating plate 100 of the drawing marker 130 is pivotally supported via the pivot 101. The drawing marker 130 is the undulating plate 1.
The support rod 99 is fixed to 00 and an end portion of the support rod 99 is bent into an L-shape to form a spatula-shaped drawing plate 131 fixed to the end thereof. In addition, the length of the drawing plate 131 from the left and right centers of the seedling mounting table 16 is set to be substantially equal to the planting width.

The pivot shaft 101 is oriented substantially in the front-rear direction perpendicular to the upward inclination of the seedling table 16 so that the drawing marker 130 can be rotated right and left at a position immediately before the lower part of the seedling table 16. Supported. A marker coil spring 103 is externally fitted on the outer periphery of the rear part of the pivot shaft 101, and urges the drawing marker 130 in a direction of extending outward, so that the end of the drawing plate 131 can pierce the soil and draw a line. Like that. This position is set as the overhang position of the drawing marker 130.

A locking member 104 is projected from the undulating plate 100, and a marker pulling wire 93 having a distal end portion as a spring is locked to the locking member 104. A roller 106 is pivotally supported forward of the front surface of the undulating plate 100, and the roller 106 is positioned above the long pipe portion 85c to be an engaged portion of a marker stopper 110 described later.

The marker stopper 110 is shown in FIGS.
As shown in the figure, two plate members formed in a substantially C-shape in a front view and in a crank shape in a plan view are joined and fixed by spot welding or the like with one side thereof being joined, and this joining side is engaged with an engaging portion. 110
The other side is formed in a concave shape in a plan view to form a pivot 110b. A first lock recess 110c and a second lock recess 110d are formed below the engagement portion 110a, and an outer end of the engagement portion 110a is formed with an abutting portion 110e at an angle.

The pivot portion 110b straddles the side bumper 85 in the front-rear direction and is pivotally supported by a fulcrum shaft 111. A stopper coil spring 112 is externally fitted to a protruding portion of the fulcrum shaft 111, and the engagement portion 110a is Lower side (the roller 106 side)
It is urged to rotate to.

Further, one end of an unlocking wire 113 is fastened to the middle part of the upper part of the marker stopper 110 via a clamp and a pin. The wire for unlocking 11
Reference numeral 3 denotes a sub-shift lever 3 for the above-described planting elevating and working travel shifting.
1, the engaging portion 110a of the marker stopper 110 is rotated upward by the left and right operation of the sub-shift lever 31 for planting up / down and work travel shifting.

In such a configuration, when the hydraulic cylinder 28 is driven to raise the planting portion 4, the marker pulling wire 93 is pulled, and the drawing marker 130 is rotated upward and pulled up. At this time, the roller 106 of the undulating plate 100 is engaged with the first lock concave portion 110c, and is spread outward from both outer ends of the planting portion 4 as shown by a two-dot chain line drawing marker 130 'in FIG. It is raised to the position of the state. This position is set as the work standby position and the drawing plate 1
Numeral 31 completely exits above the soil so that it can be quickly pushed into the soil after the lock is released.

This means that as the number of lines increases, the drawing marker 1
Since the length of 30 is also longer, the time required for raising and lowering the drawing plate 131 becomes longer, so that the rising angle of the drawing marker 130 is reduced so that the operation can be immediately started.

Further, when the operator pulls the drawing marker 130 by hand at the position where the planting section 4 is raised and pulls the drawing marker 130 toward the left and right center of the machine, the roller 16
Numeral 0 is engaged from the operation standby position into the second lock recess 110d, the drawing marker 130 is substantially in the vertical direction, and this position is the storage position. In this storage position, the drawing marker 130 is located inside the both ends of the side pumper 85, that is, within the lateral width of the machine, and at the time of circling or planting work on a ridge, the drawing marker 130 is placed on a tree or a wall on the ridge. The drawing marker 130 is prevented from being bent and deformed so as not to hit an obstacle. However, in the present invention, two locking positions are provided, but three or more locking recesses may be provided.

In any of the work standby position and the storage position of the drawing marker 130, when the planting elevating / working traveling speed change sub-shift lever 31 is operated to the left or right, the lock on the operated side is released. Roller 113 is pulled, the marker stopper 110 is rotated upward, the lock is released, and the roller 10 locked in either the first lock recess 110c or the second lock recess 110d.
6 is released, and is protruded outward and downward by the own weight of the drawing marker 130 and the urging force of the marker coil spring 103. further,
The contact portion 110e at the tip of the marker stopper 110 hits the roller 106, and the urging force of the stopper coil spring 112 acts to rotate the drawing marker 130 downward,
The line drawing marker 130 does not rise, but always rushes into the field to reliably draw the line.

In the storage position where the drawing marker 130 is pulled up, the middle part of the support rod 99 of the drawing marker 130 is locked by the marker storage hook 116, so that the body can be further rotated left and right inward. The position is the storage position. The line drawing marker 130 at this storage position can be positioned inside the left and right width in the folded state, so that it does not become a hindrance at the time of traveling and can reduce the space at the time of storage. The marker storage hook 116 is shown in FIG.
As shown in the figure, the mounting member 115 is mounted on the mounting plate 115 on the upper part of the vertical rod 23a which forms a frame supporting the seedling mounting table 16. The mounting plate 115 is provided with a shoe 24 for supporting the upper guide rail 19 slidably to the left and right.

More specifically, a pivot 117 is provided in front of the mounting plate 115, and the marker storage hook 116 is supported so as to be rotatable about the pivot 117. The marker storage hook 116 is formed by bending a linear steel material having elasticity. One end of the marker storage hook 116 is formed in a coil shape to be a coil spring portion 116b wound around the outer periphery of the pivot shaft 117, and the other end is formed by the coil spring portion 116b. The hook portion 116a extends in the tangential direction and has an end bent in a U-shape. The end formed with the coil spring portion 116b is attached to the mounting plate 115.
, The hook portion 116a is protruded substantially inward.

By moving the hook portion 116a outward against the urging force of the coil spring portion 116b, the intermediate portion of the support rod 99 of the drawing marker 130 rotated to the storage position can be locked. .

At the hook 116a, the drawing marker 13
0 and is urged upward and inward by the coil spring portion 116b so that the drawing marker
When the side bumper 85 is slid inward as described above without deviating, the drawing marker 130 is also moved inward. However, the direction of this movement and the direction of the upward rotation of the hook 116a are equal. 5, the drawing marker 130 does not come off the hook portion 116a as shown by the two-dot chain line in FIG.

When the drawing marker 130 is rotated upward, as shown in FIG. 1, the upper portion of the drawing marker 130 overlaps the hopper of the fertilizer applicator 33 in a side view. In the storage position and the storage position, FIG.
0, a gap R is provided between the drawing plate 131 and the outer end of the fertilizer applicator 33, so that the drawing marker 130 does not hit the fertilizer applicator 33 even when the planting section 4 is moved up and down. The position is such that there is no interference in rear view. Therefore, even if the drawing marker 130 is stored within the width of the seedling mounting table 16 (body width), it does not interfere with the other vehicle body frame 3 or the fertilizer applicator 33, and does not need to have a complicated structure such as a foldable type. Can be suppressed.

[0028]

As described above, the present invention has the following advantages. That is, as in claim 1,
In a rice transplanter having a planting portion suspended from the rear of the traveling vehicle body via a lifting link mechanism so as to be able to move up and down, and a drawing marker arranged to be rotatable outwardly on a side portion of the planting portion, the drawing marker is placed upward. A plurality of lock recesses are provided in the marker stopper that locks at the position rotated to allow the marker to be locked at several angles, and the marker stopper can be released from the operation unit. It is possible to lock at a standby position slightly raised from the overhanging position or a storage position further raised above, and it is possible to change the rising position angle of the drawing marker according to the situation. Become. At this standby position, the height of the drawing marker is low, so that when drawing around by turning around at the field end, the drawing marker descends quickly, improving workability without delaying the planting timing. You can. And by setting it as the storage position, it is possible to put the drawing marker within the width of the planting, and even when performing planting work such as a ridge, the drawing marker does not hit obstacles such as trees and walls on the ridge, This prevents the draw marker from being broken by contact with the draw marker and causing a drawback such as a shift in the draw position when the draw marker is rotated downward again. Furthermore, it is possible to lower the drawing marker from the standby position or the storage position where the drawing marker is lifted and locked by simply performing the releasing operation.

In the storage position where the drawing marker is rotated upward, the upper part of the drawing marker and the fertilizer applicator do not overlap when viewed from the rear. Even when the drawing marker is moved up and down so as not to be damaged by hitting an obstacle when moving or outside the field, the drawing marker does not interfere with the fertilizer applicator, and the drawing marker is There is no risk of damage. Further, there is no need to pay attention to the drawing marker so as not to hit the fertilizer and the like, so that the storing operation can be performed easily and the workability is improved.

[Brief description of the drawings]

FIG. 1 is an overall side view of a rice transplanter provided with a planting frame of the present invention.

FIG. 2 is a rear view of the divided seedling mounting table stored on a main seedling mounting table.

FIG. 3 is a side view of the planting section.

FIG. 4 is a partially cutaway front view showing a drawing marker supported by a side bumper.

FIG. 5 is a front view of a drawing marker at a storage position.

FIG. 6 is a partial front view showing a support structure of a drawing marker.

FIG. 7 is also a partial plan view.

FIG. 8 is a front view of the marker stopper.

FIG. 9 is a perspective view of the same.

FIG. 10 is a rear view showing the positional relationship between the drawing marker at the storage position and the fertilizer applicator.

[Explanation of symbols]

 R Gap 4 Planting part 13 Driver's seat 16 Seedling table 27 Elevating link mechanism 33 Fertilizer 85 Side bumper 110 Marker stopper 110c First lock recess 110d Second lock recess 130 Draw marker

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Satoshi Maekawa 1-32 Chayacho, Kita-ku, Osaka, Osaka Inside Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Yoichiro Nishi 1-32, Chayacho, Kita-ku, Osaka, Osaka No. Within Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Kunio Doi 1-32 Chayacho, Kita-ku, Osaka City, Osaka Prefecture F-term within the Yanmar Agricultural Machinery Co., Ltd. (Reference) AA02 AE10 BA04 BA07 BA09 BB06 CA19 CB02 2B062 AB01 AB07 BA14 BA24 BA33 BA34 BA35

Claims (2)

[Claims] 1. A rice transplanter in which a planting portion is suspended at a rear portion of a traveling vehicle body via a lifting link mechanism so as to be able to move up and down, and a drawing marker is disposed at a side portion of the planting portion so as to be rotatable outward. A plurality of lock recesses are provided in a marker stopper that locks the drawing marker at a position rotated upward, so that the marker stopper can be locked at several angles, and the marker stopper can be released from the operation unit. A line drawing marker for a rice transplanter characterized by the following. 2. A fertilizer applicator is disposed behind a driver's seat of a traveling vehicle body, and a planting portion is suspended at a rear portion of the traveling vehicle body via an elevating link mechanism so as to be movable up and down. A rice transplanter having a rotatable line drawing marker, wherein the upper portion of the line drawing marker and the fertilizer applicator do not overlap in a rear view at the storage position where the line drawing marker is rotated upward. Line drawing marker.