JPH11127614A - Side marker for rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sulky rice transplanter folding side markers together with side bumpers, capable of solving such a problem that an excessive force is applied to a side maker folding hook adapted to fix the side marker at the receiving position thereby to deform the hook. SOLUTION: This rice transplanter wherein side makers serving as to draw lines on the right-and-left sides of the planter section are liftably and rotatably supported and enabled to be pulled out and stored and wherein divided seedling- mounting boards on the right-and-left sides are enabled to be folded toward the center side and housed, comprising: a side marker receiving hook 124 fixing the side marker at the receiving position; a hook base section 134 of the hook 124 allowed to rotate clockwise and counterclockwise and also rotate in the frontward and backward direction; and a spring 132 outwardly engaged with an axially supporting shaft 133 of the hook base section 134, whereby the base section 134 is driven to any vertical position by the spring 132, and wherein the side maker receiving hook 124 and a bending link 122 are each made of an elastic material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side marker which is attached to a side of a planting section of a rice transplanter and which draws a field.

[0002]

2. Description of the Related Art Conventionally, in a 4-row or 5-row riding type rice transplanter, a side marker is provided with a spatula-shaped plate for drawing at the tip of a single rod. In the case of a multi-row rice transplanter, the body width becomes wider, so the drawing marker also needs to be lengthened according to the width, but if it is too long, it is necessary to increase the lifting force, and when it is stored, it will protrude upward and hinder it Therefore, it is designed to be bent in the middle. A bending link is provided alongside the drawing marker so that the bending marker can be easily extended and folded. In order to keep the side marker in the housed state, a hook is provided on the seedling mounting table, and the base of the hook is pivotally supported by the mounting plate and provided rotatably.

[0003]

However, the hook for retaining the refraction link and the side marker in the housed state is permanently deformed by rough handling, and the side hook retained by the hook is permanently deformed. The refraction link of the marker marker is deformed, the movable range of the side marker changes, the position of the side marker with respect to the traveling vehicle and the amount of insertion into the soil also change, and it turns around at the field end and In some cases, the target line was displaced or did not appear clearly.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. In a rice transplanter, side markers for drawing are provided on the left and right sides of the planting part so as to be able to be raised and lowered and supported so that they can be extended and stored, and the divided seedling mounting tables on both the left and right sides can be folded and stored at the center side. The hook base of the side marker storage hook for locking the side marker at the storage position is configured to be rotatable left and right and back and forth. Further, an elastic member is externally fitted on the pivot shaft of the hook base, the hook base is urged in the pivot axis direction by the elastic member, and the side marker storage hook is formed of an elastic body. is there. Further, in a rice transplanter in which a side marker can be bent at an intermediate portion and bent when the side marker is stored, a bending link which is bent and driven to extend when the side marker is extended or stored is formed of an elastic body. It is.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is a side view of the rice transplanter, FIG. 2 is a plan view of the rice transplanter, and FIG. 3 is a front view of a support pillar, a side bumper, and a side marker in an extended state. FIG.
FIG. 4 is a front view showing a movable range of a side marker. FIG. 5 is a front view showing a stopper for storing a side marker, and FIG. 6 is a sectional view taken along line XX of the stopper for storing a side marker. FIG. 7 is a front view showing a stopper for deploying the side marker, and FIG. 8 is a cross-sectional view taken along the line Y-Y showing a state where the support rod contacts the stopper when the side marker is deployed. FIG. 9 is a side view showing a state where the side bumper is folded. FIG. 10 is a side view showing the side marker storage hook.

Referring to FIGS. 1 and 2, the entire structure of a ten-row rice transplanter will be described. Reference numeral 1 denotes a traveling vehicle on which an operator rides. The engine 2 is mounted on a front upper portion of a body frame 3, and a traveling front wheel 6 is supported in front of a transmission case 4 via a front axle case 5. A rear axle case 7 is connected to a rear portion of the vehicle, and the rear axle case 7 supports a rear wheel 8 for traveling. A spare seedling mounting table 10 is mounted on both sides of the hood 9 covering the engine 2 and the like, and the transmission case 4 and the like are covered by a body cover 12 on which an operator rides via a step 11, and the upper part of the body cover 12 is operated. A seat 13 is mounted, and a steering handle 14 is provided in front of the driver's seat 13 and behind the hood 9.

In the figure, reference numeral 15 denotes a seedling mounting table 1 for planting 10 rows.
6 and a plurality of planting claws 17 and the like. The planting case 20 is provided with a front-tilt type seedling mounting table 16 made of a synthetic resin having a front height and a low height through a lower rail 18 and a guide rail 19.
And a rotary case 21 that is slidably reciprocally slidable in the left and right directions, and a rotary case 21 that rotates at a constant speed in one direction is supported by the planting case 20, and a pair of claw cases 22 are positioned symmetrically about the rotation axis of the case 21. 22 and its claw case 22
· Attach the planting claws 17 to the tip of 22. Further, a support frame 24 is connected to the rear side of the traveling vehicle 1 via a link mechanism 27 including a top link 25 and a lower link 26 on the front side of the planting case 20, and the planting section 15 is moved up and down via the link mechanism 27. The raising / lowering cylinder 28 to be moved is connected to the lower link 26, and the front and rear wheels 6.8 are driven and moved, and at the same time, the seedlings for one plant are taken out from the seedling table 16 which is reciprocally slid left and right by the planting claws 17. , So that the seedling planting operation is performed continuously. Reference numeral 36 denotes a side-strip fertilizer for 10 strips.

The right and left outer portions of the planting section 15 such as the seedling table 16 and the planting case 20 are provided so as to be foldable inside the machine body. The seedling mounting table 16 is divided and formed into a foldable divided seedling mounting table 16b, and the divided seedling mounting table 16b is connected to the 6-row seedling mounting table main body 16a at the center of the machine via a parallel folding mechanism 37. The divided seedling mounting table 16b is provided so as to be substantially parallel to the upper side of the working surface of the mounting table main body 16a and to be folded in two steps, so that the entire width of the seedling mounting table 16 at the time of folding is equal to the width of approximately 6 steps. It is composed.

As shown in FIGS. 2 to 4, left and right side markers 98 are provided on a side bumper 108 for guarding the outermost portion of the seedling mounting table 16 so as to be foldable and extendable.
By connecting the planting case 20, a base frame 112 is fixedly mounted on the transmission pipe 109 for accommodating the planting drive shaft, and a column 111 is erected on the base frame 112.
An upper seedling support shoe 110 is disposed at the upper end of the upper seedling 11. The pivot shaft 11 is attached to the outer end of the base frame 112.
3 and the side bumper 10 via the position regulating pin 114.
8 are foldably connected. Seedling stand 16
When the side bumper 108 is folded and the side bumper 108 is stored, the position regulating pin 114 is removed, the rear side is rotated backward, and the position regulating pin 114 is inserted and fixed.
5 is hooked on both sides of the seedling mounting table 16.

A side marker 98 is foldably connected to a tip end of the side bumper 108 via a support rod 115 as a marker body.
The 15 up / down plate 116 at the base end is rotatably connected to the side bumper 108 via a pivot shaft 117. A wire 135 is connected to the support rod 115 side of the undulating plate 116 and connected to the elevating link mechanism of the planting portion, and is pulled to accommodate the side marker 98 when the planting portion is raised. Opposite end and side bumper 10
8, a spring 136 is interposed between the side markers 98 and
In the direction of overhang.

A marker mounting plate 118 at the base end of the side marker 98 is rotatably connected to a distal end of the support rod 115 via a rotation shaft 119. A pivot arm 120 fixed to the mounting plate 118 in a direction opposite to the side marker 98
A marker refraction link 122 as marker refraction means is interposed between the tip of the head and a fixed piece 121 fixed to the inside of the rotation fulcrum shaft 117 provided on the side bumper 108.

The distance between the upper attachment point of the refracting link 122 and the rotation shaft 119 is larger than the distance between the lower attachment point of the link 122 and the fulcrum shaft 117, and the side marker 98 is provided when the support rod 115 is standing up. The rotation angle of the side marker 98 is set to be larger than the rotation angle of the support rod 115 in the direction opposite to the rising direction of the support rod 115. Therefore, when stored, the side marker 98 can be stored within the body width without greatly protruding outward, and the side marker 98 does not protrude outward during storage. 98 does not catch on obstacles, reduces the likelihood of contact and breakage of obstacles, reduces running costs by replacing damaged parts, is economical, and allows workers to focus on their work Therefore, the burden on the worker can be reduced, and safe work can be performed. The mounting plate 123 at the upper end of the column 111 is provided with a marker storage hook 124 for engaging and holding a support rod 115 in a stored state described later.

The bending link 122 for accommodating and projecting the side marker 98 is made of an elastic material so that a force for bending and expanding the bending link 122 always acts. Therefore, the side marker 98 is urged to rotate downward during storage so that the side marker 98 does not protrude outward due to vibration, inertia force, or the like. A force that tends to extend due to the elasticity of the link 122 is given,
The tip of the side marker 98 is always urged into the soil to prevent the side marker 98 from rising or hitting the unevenness or lump of the field, etc., thereby preventing the line from disappearing and ensuring that the line disappears. I'm trying to close.

As shown in FIGS. 5 to 8, the mounting plate 118 has stoppers 130 for regulating the angles of the side markers 98 and the support rods 115 when they are stored and extended.
131 is provided on the mounting plate 118 and the support rod 115.

As shown in FIGS. 5 and 6, the stopper 130 is fixed to the mounting plate 118 by welding. When the side marker 98 is stored, the stopper 130 is
5 and is restricted so as not to rotate more than necessary inside. In other words, the stopper 13 is provided so that the pivot point between the rotating arm 120 and the refracting link 122 does not exceed the extension of the support rod 115 about the rotation shaft 119 (exceeds the dead center).
It is regulated at 0 so that the side marker 98 does not rotate in the opposite direction when it protrudes. Further, the bending link 122 is not unnecessarily pulled by the side marker 98 at the time of storage, so that the joint between the rotating arm 120 and the bending link 122 and the connection between the fixed piece 121 and the bending link 122 are unnecessary. Since no load is applied, it is possible to reduce abrasion of the connecting portion, which is economical.
Further, the side marker 98 is configured to rotate inwardly more than necessary at the time of storage and does not come into contact with the seedling mounting table 16. When the side marker 98 is stored and moved and turned, the side marker 98 is moved. Can be performed without concern, and the burden on the operator can be reduced.

As shown in FIGS. 7 and 8, the stopper 131 is fixed to the upper surface of the outer end of the support rod 115 by welding. When the side marker 98 is extended, the stopper 131 is attached to the mounting plate 118. This restricts the side marker 98 from rotating more than necessary. For this reason, the side marker 98 does not hit the convex portion of the field scene at the time of overhang or does not rotate upward more than necessary when hitting the earth mass. Accordingly, stable marking on the field can be performed by the side marker 98. With such a configuration, the movable range of the side marker 98 at the time of extension and storage is restricted. In addition, since it has comprised as mentioned above, the rotation range of the side marker 98 can be regulated even when the said refraction link is comprised by an elastic body.

As shown in FIGS. 9 and 10, the mounting plate 123 is fixed to the upper end of the support column 111.
The hook base 134 is rotatably supported on the mounting plate 123 by a pivot shaft 133 composed of a bolt, and a spring 132 is fitted on the pivot shaft 133 so that one end of the spring 132 is attached to the mounting plate 123. The other end is locked to a hook base 134, and the hook base 134 is urged by a spring 132 to move upward. And the hook base 13
Numeral 4 is loosely fitted to the pivot 133 so that the hook base 134 can be tilted in the front-rear direction. Further, a marker storage hook 124 made of an elastic body is fixedly provided at the tip of the hook base 134, and the marker storage hook 124 can be bent by elastic deformation.

With such a construction, in the working position where the side bumper 108 is extended to the side,
When the side marker 98 is in the storage position, the marker storage hook 124 can be engaged and held by simply turning the marker storage hook 124 sideways about the pivot shaft 133 as shown in FIG. it can. Then, when the side bumper 108 is rotated backward and the seedling mounting table 16 is folded,
As shown in FIG. 10, since the bending link 122 is located rearward, the hook base 134 can be tilted rearward so that the marker storage hook 124 can be engaged with the bending link 122. Furthermore, the side bumper 10
In the working position where the side 8 is extended to the side, the side bumper 108 can be rotated backward while the marker storage hook 124 is engaged with and held by the bending link 122. As described above, since the marker storage hook 124 can be rotated back and forth and right and left, it is possible to prevent the bending link 122, the hook base 134, and the mounting plate 123 from being unduly burdened.

[0019]

As described above, the present invention has the following advantages. That is, since the hook base of the side marker storage hook that locks the side marker performing the drawing at the storage position is configured to be able to rotate left and right and back and forth, when holding the side marker in the storage position in the working state, By simply turning in the left-right direction, the side marker can be engaged and held by the marker storage hook, and when the divided seedling mounting table is folded and the side marker base is also folded, the marker storage hook is moved backward. If rotated, the side marker can be easily engaged and held,
In both the retracted position and the extended position, there is no unreasonable load on each part such as the hook base and the link, so that the load on each part is reduced, the degree of metal fatigue is reduced, and the life of the part is reduced. Can be lengthened and is economical.

Further, since an elastic member is externally fitted on the pivot shaft of the hook base and the hook base is urged in the direction of the pivot shaft center by the elastic member, the hook base can be allowed to move back and forth. The side marker is always pulled when the marker is stored because it is urged by the member, and it does not come off even if vibration or impact occurs in the locked state, and noise is generated by vibration etc. There is nothing to do.

Further, since the side marker storage hook is made of an elastic body, the original link can be restored even if the side marker storage hook is deformed. When engaging and holding, the marker storage hook 124 can be bent backward to engage and hold the bending link 122.
Further, since permanent deformation is difficult, the necessity of replacement is reduced, and running cost is reduced, which is economical.

Further, in a rice transplanter wherein the side marker can be bent at an intermediate portion and is bent when the side marker is stored, the side marker is bent when the side marker is overhanged and stored.
Since the extension link is driven by an elastic body,
When the side marker is stored, the side marker can be biased to rotate inward and can be stored inside the side bumper. Further, when the side marker is extended / extended, the refraction link urges the side marker in a direction of turning downward, so that the side marker can be reliably pushed into the soil of the field. In addition, even when the side marker is pushed up in a hard field, the refraction link is elastically deformed,
The side marker is less likely to be damaged, and is constantly urged downward, so that it does not jump up and break the line. Further, even if the bending link is deformed and held by the side marker storage hook, it is not permanently deformed, so that the insertion amount of the side marker into the soil does not change. Further, since permanent deformation is difficult, the necessity of replacement is reduced, and running cost is reduced, which is economical.

[Brief description of the drawings]

FIG. 1 is a side view of a rice transplanter.

FIG. 2 is a plan view of the rice transplanter.

FIG. 3 is a front view of a state in which a support pillar, a side bumper, and a side marker are extended and extended.

FIG. 4 is a front view showing a movable range of a side marker.

FIG. 5 is a front view showing a stopper for storing a side marker.

FIG. 6 is a sectional view taken along line XX showing a stopper for accommodating a side marker.

FIG. 7 is a front view showing a stopper for deploying a side marker.

FIG. 8 is a YY sectional view showing a state in which a support rod abuts on a stopper when the side marker is deployed.

FIG. 9 is a side view showing a state where the side bumper is folded.

FIG. 10 is a side view showing a side marker storage hook.

[Explanation of symbols]

 15 Planting part 98 Side marker 108 Side bumper 111 Support column 115 Support rod 118 Mounting plate 119 Rotating shaft 120 Rotating arm 121 Fixed piece 122 Refracting link 123 Mounting plate 124 Marker storage hook 130/131 Stopper 132 Spring 133 Spring support shaft 134 Hook base

Continued on the front page (72) Inventor Toshiaki Kasahara 1-32 Chaya-cho, Kita-ku, Osaka City, Osaka Inside Yanmar Agricultural Machinery Co., Ltd.

Claims (4)

[Claims] 1. A side marker that draws a line on both left and right sides of a planting portion is supported so as to be able to move up and down and can be extended and stored, and the divided seedling mounting tables on both right and left sides can be folded and stored at the center side. A side marker of a rice transplanter, wherein a hook base of a side marker storage hook for locking the side marker at a storage position is configured to be rotatable left and right and back and forth. 2. The rice transplanter according to claim 1, wherein an elastic member is externally fitted on the pivot shaft of the hook base, and the hook base is urged in the direction of the pivot axis by the elastic member. Side marker. 3. The side marker of a rice transplanter according to claim 1, wherein said side marker storage hook is formed of an elastic body. 4. A rice transplanter wherein a side marker for drawing a line on the left and right sides of a planting portion is refractible at an intermediate portion and is refracted when the side marker is stored. A side marker of a rice transplanter, characterized in that a resilient link driven for extension is formed of an elastic body.