JPH09163832A - Seedling guide structure of rice planting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a seedling normally planted in farm field by a planting claw regardless of the status of the root part of the seedling in the seedling guide structure of a rice planting machine constituted so that a seedling is picked up by a planting claw passing through an output port formed at the bottom of a load table for seedlings. SOLUTION: This machine has a pair of right and left seedling guides 16 mounted along the passing locus of the planting claw extending from an output port to downward and a connecting device 17 mounted over the right and left seedling guides 16 capable of setting and changing the spacing between the right and left seedling guides 16 while the connecting device 17 is mounted on the opposite side of the planting claw along the seedling guides 16 and set so that it can be attached and detached at this side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire drawing mechanism for forming a running reference line for a next step in a field scene when planting and running a rice transplanter.

[0002]

2. Description of the Related Art The above-mentioned wire drawing mechanism is equipped with a wire drawing marker in a undulating manner in a seedling planting device, and the wire drawing marker is erected and swung up in a non-acting position in conjunction with the raising operation of the seedling planting device. The one configured to sway and sway to the drawing action position in conjunction with the descending operation has been put into practical use, and when traveling on the road or while being carried on a vehicle,
In order not to inadvertently swing the wire drawing marker to the working position when it is stored in the garage or when not working, the wire drawing marker is fixed at a storage position that is more upright than the non-working position. Equipped with means. And as this storing and fixing means, as shown in FIG.
The hook member 36 is attached to the fixed frame member 35 of the seedling planting device.
The wire drawing marker 37 that is fixed to the non-acting position (b) and oscillates upright to the retracted position (c) and is engaged with the hook member 36 by human power. .

[0003]

A stroke absorbing spring is interposed in the operation system for raising the drawing marker 37 in association with the raising operation of the seedling planting device. Therefore, the tip of the marker is rushed into the field. When the drawing marker 37 catches on foreign matters such as straw chips and weeds existing in the field when the standing marker is swung from the acting position to the non-acting position, the drawing marker 37 is immediately bent only by bending the operation system spring. When the elastic force of the spring is increased to overcome the resistance, the wire drawing marker 37 may rise and swing all at once. The work position (b) may be crossed up to the storage position (c). Then, the wire-drawing marker 37 that has stood upright to the storage position (c).
There is a risk that the dog will ride up on the hook member 36 and be disengaged and engaged therewith, and will not fall down to the working position next time, and will enter the next planting process without noticing this. Of course, such an inconvenience can be avoided in advance if the undulating locus of the wire drawing marker 37 and the hook member 36 are largely separated laterally, but according to this, the wire drawing marker 37 is engaged with the hook member 36. In order to store and fix the wire-drawing marker 37 in a lateral direction, a large manual operation force is required to bend the wire-drawing marker 37 largely laterally, and the undulating locus of the wire-drawing marker 37 and the hook member 36 are unnecessarily in view of operability. It couldn't be separated from and.

The present invention has been made by paying attention to such a point, and in the wire drawing mechanism of the rice transplanter having the above-mentioned structure, even if the wire drawing marker is overpowered to stand up to the storage position. SUMMARY OF THE INVENTION It is an object of the present invention to prevent the wire drawing marker from being engaged and fixed at the storage position without requiring a large operation force without being fixed to the storage position without permission.

[0005]

According to the present invention, a line drawing marker for forming a running reference line for the next step in a field scene is undulated and provided in a seedling planting device, and the line drawing marker is interlocked with the raising operation of the seedling planting device. To stand and swing to the non-acting position,
A rice transplanter having a storage and fixing means which is configured to fall and swing to a drawing operation position in conjunction with the descending operation of the seedling planting device and which has a storage fixing means for fixing the drawing marker at a rising storage position which is further erected than a non-operation position. In the wire drawing mechanism, the storing and fixing means is composed of a hook member and an engaging member having an opening that engages with the hook member, and one of these members is a wire drawing marker and the other is a seedling planting device fixing device. When the wire-drawing marker is divided and fixed to the frame, and when the wire drawing marker goes up to the retracted position beyond the non-acting position, the tip end of the hook member faces the opening of the engaging member. The relative position is set to.

[0006]

According to the above construction, even if the wire-drawing marker, which has received standing resistance due to being caught by foreign substances in the field, overcomes the resistance and swivels up to the storage position at once.
For example, when the wire drawing marker is provided with an engaging member, the opening of the engaging member is fitted to the tip of the fixed hook member, thereby preventing relative displacement between the engaging member and the hook member. In this state, the two members come into contact with each other, and the unreasonable climbing of both members due to the rising and rocking of the momentum is avoided in advance, and it is prevented that the engaging and fixing state is arbitrarily reached. Also, when artificially storing and fixing the drawing marker,
The drawing marker may be bent and displaced slightly to the side to engage the opening of the engaging member with the hook member.

[0007]

As described above, according to the present invention, even if the wire drawing marker rises to the storage position due to excessive force, it is not engaged and fixed to the storage position without permission.
Moreover, since the relative position is set so that the hook member and the engaging member of the storing and fixing means interfere with each other when the wire drawing marker is erected and swung up to the retracted position, the wire drawing marker needs to be largely bent by a large operating force. Instead, both members can be engaged and fixed at the retracted position, and the handleability can be improved.

[0008]

1 shows a riding type rice transplanter to which the present invention is applied. In this rice transplanter, a seedling planting device 4 is vertically movably connected to a rear portion of a four-wheel drive type passenger traveling body 1 via a four-link mechanism 3 driven by a hydraulic cylinder 2, and the seedling planting device 4 is also installed. The structure is such that the fertilizer application device 5 is attached to the rear part.

A plurality of rows of seedlings are placed on the seedling planting device 4, and a seedling stand 6 is reciprocally moved laterally with a constant stroke, and seedlings are cut out from the lower end of the seedling stand 6 one by one. A rotary seedling planting mechanism 7 for a plurality of lines to be planted, a float 8 for arranging a field scene, a pair of left and right line drawing markers 9 for forming a running reference line in the field scene for the next process, and the like are provided.

The lower end of the seedling stand 6 is guided and supported by a slide rail 11 fixed to the planting transmission case 10 as shown in FIG. The pair of right and left support frames 13 standing upright from the left and right ends of the main frame 12 having a long rectangular pipe shape that supports the front part of the left and right sides is slidably supported in the left and right directions. The sliding rail 11 is formed with a cutout 14 through which the planting claw 7a of the seedling planting mechanism 7 in each planting strip passes, and the strip 1 is formed.
An outlet guide 15 is attached to 4, and
A pair of left and right seedling guides 16 for guiding the bed soil portion of the seedling taken out by the planting claws 7a from the left and right are attached below the left and right sides. The seedling guide 16 is made of a resin material and, as shown in FIG. 8, is inserted and mounted in a mounting groove 15a formed in the outlet guide 15 via a guide ridge 16a. An outer surface of each seedling guide 16 is provided with a pair of upper and lower tapered projections 16b and 16c formed in a tapered shape. These protrusions 16b and 16c are used to erect a U-shaped connecting member 17 that regulates the distance between the left and right seedling guides 16, and as shown in FIG. It is possible to set the left and right seedling guides 16 so as to be narrowed downward and elastically expandable by press-fitting and fitting from the tips of the and connecting members 17 spanning the left and right seedling guides 16. , Fully exert the function of compacting the bed soil of the seedlings, which tend to collapse, from the left and right. In addition, FIG.
As shown in (b), the connecting member 17 is fitted over the lower left and right projections 16c, so that the left and right seedling guides 16 are provided.
It is possible to set the distance between the two to be slightly narrower downward, and to fix it so that it does not expand elastically. As shown in FIGS. 10 and 11, the connecting member 17 may be press-fitted into the constricted portions of the left and right protrusions 16b and 16c from the side.

As shown in FIGS. 2 and 3, the wire-drawing marker 9 has a marker arm 9b pivotally connected to a support pipe 20 projecting outward from the left and right ends of the main frame 12 at a fulcrum p. , A marker body 9a connected to the tip at a right angle so as to be elastically rotatable, and the marker arm 9b becomes horizontal, and the marker body 9a has an operating position (a) in which the tip portion of the marker body 9a penetrates into a field scene. Of the spring 21 mounted on the base of the marker arm 9b, which can swing up and down within a range of a non-acting position (b) in which it stands up to a position where it floats more than the field scene, and a retracted position (c) in which it stands up more greatly. The urging force is urged toward the operating position (a). Note that the marker body 9a operates the aircraft so that the aircraft center is aligned with the running reference line formed in the field of the next journey, thereby planting the next journey at a predetermined interval with respect to the planting strip of the previous journey. At this time, the center mascot 1a erected in the center of the front part of the fuselage
Is operated as a sighting tool for the driving reference line.

Generally, the main process of planting work is U at the edge of the ridge.
This is due to reciprocal planting in which the turns are repeated. Therefore, the next stroke is switched to the left and right of the aircraft alternately every U-turn, and the line drawing markers 9 are used alternately according to the right and left shifts of the next stroke. It will be. The entry / exit structure will be described below.

As shown in FIG. 5, a wire 23 led out from the base of each wire drawing marker 9 via a spring 22 for absorbing a stroke is provided with a guide pulley provided below the vertical link 3a in the four-link mechanism 3. A rotating arm 25 which is wound around and guided by 24 and extends upward, and which is mounted on the upper portion of the vertical link 3a so as to be vertically swingable around a fulcrum x.
An end connecting pin 23a of the wire 23 is connected to one end of the. The operation arm 26 is provided so as to project downward from the upper link 3b of the four-link mechanism 3.
As shown in FIG. 5A, when the quadruple link mechanism 3 is lowered, the operation arm 26 is separated from the rotation arm 25, so that the rotation arm 25 becomes free and is biased by the spring 21 to project. The wire drawing marker 9 falls and swings to the operating position (a). Further, as shown in FIG. 5B, when the quadruple link mechanism 3 moves up, the operation arm 26 pushes the roller 25 a provided at the other end of the rotating arm 25 rearward to rotate the rotating arm 2.
5 is forcibly rotated counterclockwise in the figure, whereby the wire 23 is pulled upward and the wire-drawing marker 9 is moved to the spring 21.
It stands and swings to the non-acting position (b) against the force.

Further, a hook-like lock fitting 27 is attached to the upper part of the vertical link 3a so as to be rotatable about a fulcrum y and urged to rotate counterclockwise in the drawing by a spring 28, As described above, when the wire-drawing marker 9 is erected and swung up to the non-acting position (b) as the four-link mechanism 3 is lifted, the end connecting pin 23a rides over the lock fitting 27 and engages with it. It is supposed to meet. In this way, in the state where the end connecting pin 23a is engaged with the lock fitting 27, even if the quadruple link mechanism 3 is lowered next time, as shown in FIG.
As shown in (c), the downward movement of the wire 23 is blocked, and the drawing marker 9 is held at the non-acting position (b). Each locking metal fitting 27 for the left and right wire drawing markers 9
Is linked to a marker selection lever (not shown) of the control section through a lock release wire 29, and pulls either the left or right lock release wire 29 to move the left or right lock fitting 27 clockwise. By forcibly rotating and detaching from the end connecting pin 23a, only the wire drawing marker 9 on the side detached from the lock fitting 27 is made to project to the operating position (a) as the four-link mechanism 3 descends. It is configured so that it can.

The line drawing marker 9 can be fixed at the storage position (c) when the road is not running, when the car is stored in the garage, or when the work is not performed, or when the planting run does not require the travel reference line. The structure will be described below.

As shown in FIG. 4, the hook members 30 formed by bending a round bar are fixed to the left and right support frames 13 in a cantilevered manner, and the marker arms 9b of the respective wire drawing markers 9 are provided. An engaging member 31 formed by bending a round bar into a U-shape is fixedly attached to the spring, and the wire-drawing marker 9 erected up to the non-acting position (b) is attached to the spring 21.
In addition to artificially standing up against the,
As shown in (a), the wire drawing marker 9 is slightly bent to the side, and the opening of the engaging member 31 is engaged with the hook member 30 to fix the wire drawing marker 9 to the storage position (c). Is configured to be able to. Then, the drawing marker 9 is moved from the non-acting position (b) to the storage position (c).
In the state of standing up and swinging toward, the positional relationship is set so that the opening of the engaging member 31 and the tip of the hook member 30 face each other, and as the seedling planting device 4 moves upward. Even if the vertical drawing marker 9 stands up toward the non-acting position (b) and swings upright to the storage position (c) when standing up toward the non-acting position (b), as shown in FIG. The opening is fitted into the tip of the hook member 30 so that the two do not cross over and engage without permission.

[Other Embodiment] In the above embodiment, the hook member 30 is provided on the support frame 13 as the fixed frame of the seedling planting device 4, and the engaging member 31 is provided on the marker arm 9b of the wire drawing marker 9. The engaging member 31 may be provided on the support frame 13 and the hook member 30 may be provided on the wire drawing marker 9. Further, as the engaging member 31, a plate material having an opening cut out can be used, and its shape and configuration can be arbitrarily set.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

[Fig. 1] Overall side view of the riding rice transplanter

FIG. 2 is a partial front view showing a working state of a drawing mechanism.

FIG. 3 is a partial front view showing a retracted state of the drawing mechanism.

FIG. 4 is a perspective view showing a main part of a marker storing and fixing unit.

FIG. 5 is a side view showing the operation structure of the wire drawing mechanism. (A) Marker protruding operation state (b) Marker automatic withdrawal state (c) Marker withdrawal locked state

FIG. 6 is a plan view of an essential part of the marker storing and fixing means. (A) A state in which the drawing marker is fixed at the storage position. (B) A state in which the drawing marker stands upright.

[Figure 7] Side view of the seedling removal site

FIG. 8 is a perspective view of a seedling take-out site.

FIG. 9 is a front view showing a form of adjusting the intervals of the seedling guides.

FIG. 10 is a side view showing another embodiment of the seedling guide and the connection member for adjusting the gap.

FIG. 11 is a front view of another embodiment of the seedling guide and the connection member for adjusting the distance.

FIG. 12 is a perspective view showing a main part of a conventional marker storing and fixing means.

[Explanation of symbols]

 4 Seedling planting device 9 Drawing marker 13 Fixed frame 30 Hook member 31 Engaging member (a) Working position (b) Non-working position (c) Storing position

[Procedure amendment]

[Submission date] December 10, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of Invention] Seedling guide structure for rice transplanter

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for planting seedlings in a rice transplanter.

[0002]

2. Description of the Related Art Generally, a rice transplanter is provided with a seedling stand on which seedlings are placed, a seedling take-out port and a planting claw formed at the bottom of the seedling stand, while the planting claw passes through the take-out port. The roots of the seedlings are held, the seedlings are taken out, and the planting claws penetrate into the field to plant the seedlings (roots) in the field. In this case, a pair of left and right seedling guides that extend downward along the passage of the planting nail from the outlet are provided, and after the seedling is taken out from the outlet by the planting nail, the planting nail reaches the field below. A rice transplanter configured to prevent the seedlings (roots) from falling from the planting nails by guiding the roots of the seedlings from the left and right by the seedling guides and giving a light resistance to the roots of the seedlings until the seedlings are planted. There are many.

[0003]

[Problems to be Solved by the Invention] There are many mat-like seedlings used for planting, and the mat-like seedlings are sprouting by sowing seed rice on the bed soil in a state where the bed soil is spread in a nursery box. Produced by. Therefore, the roots of the seedlings taken out by the planting nails from the take-out port are in a state where the roots of the seedlings and the bed soil are intertwined. In this case, the type of floor soil used (for example, soil with a lot of clay, or soil with a lot of sand)
Also, depending on the thickness of the bed soil laid in the nursery box, the nature of the roots of the seedlings, the roots of the seedlings may be hard or soft, tenacious and difficult to break, or brittle and easy to break.

As a result, when the root of the seedling is fragile due to, for example, sandy soil, the seedling taken out by the planting nail is
Between reaching the lower field and planting,
The root of the seedling collapses due to the resistance received from the seedling guide, and the seedling (root) falls from the planting claw before reaching the field below,
There is a case where seedlings are not normally planted in the field due to the planting nails. Also, for example, if the roots of the seedlings are hard, unless the resistance from the seedling guide is applied to the roots of the seedlings, the seedlings (roots) cannot be held only by the planting claws, and until the lower field is reached as described above. In addition, seedlings (roots) may fall from the planting nails.

On the contrary, when the root of the seedling is tenacious due to clay-like soil, the seedling taken out by the planting nail is
Between reaching the lower field and planting,
Due to the resistance received from the seedling guide, the root of the seedling bites into the planting nail, the root of the seedling becomes difficult to separate from the planting nail, and when the planting nail reaches the lower field, planting the seedling,
The root of the seedling may be delayed from being separated from the planting nail, and the seedling may not be normally planted in the field. Also, for example, when the roots of seedlings tend to come loose because the roots of the seedlings are soft, etc., even if the seedlings (roots) reach the field without dropping from the planting claws and are planted, the roots of the seedlings may come apart in the field after planting. Therefore, if the seedlings whose roots are easily dislodged as described above are planted in a soft and humid field, the roots of the seedlings may disperse in the field and the seedlings may easily fall. An object of the present invention is to enable a seedling to be normally planted in a field by a planting claw in a seedling guide structure of a rice transplanter regardless of the state of the root of the seedling.

[0006]

The feature of the present invention resides in that the seedling guide structure of the rice transplanter is constructed as follows. It is equipped with a seedling stand on which the seedlings are placed, a seedling take-out opening formed in the lower part of the seedling stand, and a planting claw that passes through the take-out slot and takes out the seedlings to plant in the field. A pair of left and right seedling guides that extend downward along the path of passage, engaging portions provided on each of the left and right seedling guides, and on the opposite side of the left and right seedling guides from the planting claws, across the left and right seedling guides. It is equipped with a connecting member that can set and change the interval between the left and right seedling guides by being installed, and connects the left and right seedling guides from the side opposite to the planting claws toward the left and right seedling guides. The connecting member and the engaging portion are configured so that the member engages with the engaging portion and the connecting member is installed over the left and right seedling guides, and the connecting member separates from the engaging portion in the opposite direction. There is.

[0007]

[I] According to the feature of claim 1, the interval between the left and right seedling guides can be changed by the connecting member. This allows
For example, if the roots of the seedlings are fragile due to sandy floor soil, for example, if the spacing between the left and right seedling guides is widened, the seedlings taken out by the planting claws will reach from the seedling guide to the lower field until they are planted. Since the resistance applied to the roots of the seedlings is reduced, the roots of the seedlings do not collapse due to the resistance received from the seedling guide, and the seedlings (roots) do not fall from the planting claws. Also, for example, when the roots of the seedlings are tenacious due to clay soil, etc., for example, if the spacing between the left and right seedling guides is widened, the resistance from the seedling guides to the roots of the seedlings will decrease in the same manner as described above, so from the seedling guides There is no need to say that the resistance of the seedling causes the root of the seedling to bite into the planting nail, making it difficult for the root of the seedling to separate from the planting nail.

On the contrary, for example, when the root of the seedling is hard and easily falls from the planting nail, for example, if the interval between the left and right seedling guides is narrowed, the resistance from the seedling guide is sufficiently applied to the root of the seedling. By the nails and the left and right seedling guides, the seedlings taken out by the planting nails are held by the planting nails and planted in the field until they reach the field below. Also, for example, when the roots of the seedlings tend to be loose because the roots of the seedlings are soft, for example, if the spacing between the left and right seedling guides is narrowed, the roots of the seedlings will be pressed relatively strongly by the seedling guides. The roots of the seedlings taken out by the nails are pressed by the seedling guide, and the roots of the seedlings are prevented from being scattered in the field after planting.

[II] In a pair of left and right seedling guides as in the feature of claim 1, when changing the interval between the left and right seedling guides, a connecting member as in the feature of claim 1 is spread across the left and right seedling guides. It is conceivable as a simple structure to erect and set and change the interval between the left and right seedling guides by this connecting member.

In this case, when the planting claw takes out the seedling from the take-out port, the planting claw and the seedling (root) pass through between the left and right seedling guides and reach the field, so that the connecting member is left and right. In the state of being installed on the seedling guide, the connecting member is located on the opposite side of the left and right seedling guides from the planting claws. Therefore, the planting claw and the seedling (root portion) pass between the left and right seedling guides and reach the field without contacting the connecting member.

[III] In the feature of claim 1, when the connecting member is installed on the left and right seedling guides, as shown in, for example, FIG. ) To the left and right seedling guides 16, the connecting member 17 engages with the engaging portion 16b, so that the connecting member 17 is laid across the left and right seedling guides 16.

Thus, when the connecting member 17 is installed on the left and right seedling guides 16, an operator pushes the connecting member 17 into the engaging portion 16b with the index finger or thumb while holding the seedling guide 16 by hand. In this case, the connecting member 17 engages with the engaging portion 16b, so that the connecting member 17 is installed on the left and right seedling guides 16. When the connecting member 17 is pulled away from the seedling guide 16 in the opposite direction, the connecting member 17 disengages from the engaging portion 16b. In this case, when engaging and removing the connecting member with the engaging portion of the seedling guide, the connecting member is pressed against the engaging portion without performing a complicated operation such as tightening or loosening the bolt and the nut. The connecting member can be easily engaged with or disengaged from the engaging portion by pulling or separating.

[0013]

According to the features of claim 1, in the seedling guide structure of the rice transplanter, by changing the distance between the left and right seedling guides, the root portion of the seedling (hard or soft and brittle). Irrespective of the fact that the seedlings can be normally planted in the field without dropping due to the planting claws, and it is possible to prevent the situation where the roots of the seedlings fall apart in the field after planting and the seedlings collapse. Was able to improve the planting performance of. When the connecting member for setting and changing the interval between the left and right seedling guides is provided as in the feature of claim 1, the planting claw and the seedling (root portion) do not contact the connecting member and the space between the left and right seedling guides is not hindered. Since the seedlings are planted by passing through to reach the field, the planting claws and seedlings (roots) do not come into contact with the connecting members, and the seedlings fail to drop from the planting claws (roots).

According to the feature of claim 1, when the connecting member is pushed into the engaging portion by the index finger or thumb while the seedling guide is grasped by the hand, the connecting member engages with the engaging portion and connects. The point where the member is installed on the left and right seedling guides, and
The workability of attaching and detaching the connecting member is good because the connecting member can be easily installed and removed over the left and right seedling guides without performing a complicated operation by engaging the engaging portion. Will be things.

[0015]

1 shows a riding type rice transplanter to which the present invention is applied. In this rice transplanter, a seedling planting device 4 is movably connected to a rear portion of a four-wheel drive type passenger traveling body 1 through a four-link mechanism 3 driven by a hydraulic cylinder 2, and the rear portion of the seedling planting device 4 is connected. The fertilizer application device 5 is attached to the structure.

A plurality of seedling seedlings are placed on the seedling planting device 4, and a seedling stand 6 is reciprocally moved laterally with a constant stroke, and one seedling is taken out from the lower end of the seedling stand 6 and planted. A rotary seedling planting mechanism 7 for a plurality of rows, a float 8 for arranging a field scene, a pair of left and right line drawing markers 9 for forming a running reference line in a field scene for the next process, and the like are provided.

As shown in FIG. 1, the lower end of the seedling stand 6 is guided and supported by a slide rail 11 fixed to the planting transmission case 10, and the upper back surface of the seedling stand 6 is in front of the planting transmission case 10. Left and right slidably engaged with and supported by the upper ends of a pair of left and right support frames 13 which are erected from the left and right ends of the main frame 12 having a rectangular pipe shape that is long in the left and right and supports the parts.

As shown in FIG. 2, the slide rail 11 is formed with a cutout 14 through which the planting claw 7a (see FIG. 1) of the seedling planting mechanism 7 in each planting strip passes, and the takeout port 14 is taken out. A guide 15 is attached, and a pair of left and right seedling guides 16 that guide the roots of the seedlings taken out by the planting claws 7a from the left and right are attached below the left and right sides of the pick-up guide 15. The seedling guide 16 is made of a resin material, and is inserted and mounted in a mounting groove 15a formed in the outlet guide 15 via a guide protrusion 16a.

On the outer surface of the seedling guide 16, a pair of upper and lower tapered stepped projections 16b and 16c (corresponding to engaging portions) are provided, and the projections 16b and 16c of the left and right seedling guides 16 are provided. U-shaped connecting member 17 for regulating the space
It is used for erection. For example, as shown in FIG. 3, the planting claws 7a are attached to the left and right seedling guides 16.
In the direction from the opposite side to the left and right seedling guides 16, the connecting member 17 engages with the constricted portion of the protrusion 16b (16c), and the connecting member 17 is laid across the left and right seedling guides 16. Yes, the connecting member 17 separates from the protrusion 16b (16c) in the opposite direction. Left and right seedling guide 16
When the connecting member 17 is installed over the entire length, the connecting member 17 is located on the opposite side of the left and right seedling guides 16 from the planting claws 7a.

As shown in FIGS. 3 and 4, when the connecting member 17 is engaged with the upper left and right projections 16b and the connecting member 17 is installed over the left and right seedling guides 16, the left and right seedling guides 16 are formed. The spacing is set to be narrow, and the left and right seedling guides 16 are set to be narrowed downward and elastically expandable,
The function of pressing the roots of the seedlings from the left and right is fully exerted. On the contrary, the connecting member 17 is provided across the lower left and right protrusions 16c.
By erection, the spacing between the left and right seedling guides 16 is set to be a little wider, and the left and right seedling guides 16 are fixed in a state where they are slightly narrowed downward and do not expand elastically.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

[Figure 1] Overall side view of a riding-type rice transplanter

[Fig. 2] Perspective view of the sliding rail outlet and the vicinity of the seedling guide

[Fig. 3] Side view of seedling guide and connecting member

FIG. 4 is a rear view of the seedling guide and the connecting member.

[Explanation of Codes] 6 Seedling support 7a Planting claw 14 Extraction port 16 Seedling guides 16b, 16c Engaging part of seedling guide 17 Connecting member

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

[Figure 3]

FIG. 4

FIG.

[Fig. 2]

Claims (1)

[Claims] 1. A seedling stand (6) on which a seedling is placed and a seedling take-out port (14) formed under the seedling stand (6).
And a planting claw (7a) through which the seedlings are taken out and planted in the field through the take-out port (14), and extend downward from the take-out port (14) along the path of passage of the planting claw (7a). A pair of left and right seedling guides (1
6), engaging portions (16b), (16c) provided in each of the left and right seedling guides (16), and the planting claws (7) in the left and right seedling guides (16).
On the side opposite to a), the left and right seedling guides (16)
The connection member (17) that can set and change the interval between the left and right seedling guides (16) by being installed over
And the planting claws (7) for the left and right seedling guides (16).
The connecting member (17) engages with the engaging portions (16b) and (16c) in the direction from the side opposite to the side a) toward the left and right seedling guides (16), and the connecting member (1)
7) is laid across the left and right seedling guides 16, so that the connecting member 17 is separated from the engaging portions 16b and 16c in the opposite direction. 17) and the engaging portions (16b), (16c), the seedling guide structure of the rice transplanter.