JPH08154440A - Multi-row rice transplanter - Google Patents

Abstract

PURPOSE: To provide a multi-row rice transplanter so designed that a stationary and mobile seedling loading sections are mutually firmly clamped in a spread state without producing any looseness or getting out of place. CONSTITUTION: This multi-row rice transplanter is so designed that seedling loading sections 13a, 13b are plurally and transversely arranged into a seedling table 12 and, in a spread state, the mobile seedling loading section 13b situated at least on the outermost side lies foldably on the stationary seedling loading section 13a. Each of the joints 40 between the mobile seedling loading section 13b and stationary one 13a being in a spread state is freely detachably connected via connecting members 33, 33 at an intermediate point between the seedling loading section 13b and a seedling traverse feed site 16b under the seedling loading section 13b in its longitudinal direction, and the upper part of the seedling loading section in its longitudinal direction is detachably connected through a clamping member 44.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-row rice transplanter in which a plurality of seedling placing portions are arranged in a lateral direction, and more particularly to a structure of a seedling placing base which can be expanded and folded.

[0002]

2. Description of the Related Art A multi-row rice transplanter forms a seedling mount by arranging a plurality of seedling mounts on which seedlings are mounted in the lateral direction, and fixes a movable seedling mount located on the outermost side in the lateral direction in a deployed state. The seedling mounting base can be folded by superimposing it on the seedling mounting part, but as the number of rows increases, the amount of lateral projection from the aircraft increases, so when traveling on a general road the vehicle Therefore, the movable seedling placing portions that do not meet the standard and are located on the outermost left and right sides are overlapped with the fixed seedling placing portion and folded.

As a conventional example of such a multi-row rice transplanter, for example, Japanese Utility Model Laid-Open No. 57-100825 and Japanese Patent Laid-Open No. 60-4.
There is a technique described in Japanese Patent No. 1408. In these multi-row rice transplanters, the movable seedling placing portion and the fixed seedling placing portion in the deployed state are fastened by a transverse feed metal fitting or a rail portion.

[0004]

However, in such a conventional multi-row rice planting machine, since the fastening portion between the movable seedling placing portion and the fixed seedling placing portion is limited due to its structure,
There was a problem that it was difficult to complete a complete seedling stand.

The present invention has been made to solve the above problems, and an object thereof is to cause backlash and displacement at the joint between the fixed seedling placing portion and the movable seedling placing portion in the expanded state. It is to provide a multi-row rice transplanter that can be securely fastened without any trouble.

[0006]

To achieve this object, the present invention provides a seedling placing portion (13a, 13) for placing seedlings.
It is possible to arrange a plurality of b) in the lateral direction to form a seedling placing table (12), and fold the movable seedling placing portion (13b) located at least at the outermost side in the lateral direction in the expanded state to the fixed seedling placing portion (13a). In the Tajo rice transplanter, the movable seedling placing section (13b) and the fixed seedling placing section (13) in the expanded state are used.
The first and second connecting members (33, 33) that detachably connect the joint (40) with a) at the seedling vertical feeding portion in the lower part of the seedling placing portion in the vertical direction and the intermediate portion of the seedling placing portion. ) And a third connecting member (44) that is detachably connected at the upper part of the seedling placing part in the vertical direction.

The third connecting member is connected to the clamp member (4
4), a plate (45) provided on either the movable seedling placing portion (13b) side or the fixed seedling placing portion (13a) side and having a positioning pin (46) planted, and the fixed seedling placing portion (13a). ) Side and the movable seedling placing portion (13b) side, the notch hole (47) into which the positioning pin (46) is fitted, and the notch hole (4).
7) has a clamp arm (49) for tightening and fixing the positioning pin (46) fitted in the positioning pin (46) when the movable seedling placing part (13b) is changed from the folded state to the expanded state. Is pushed laterally along the opening side guide surface (55) of the cutout hole (47) to fasten the movable seedling placing portion (13b) and the fixed seedling placing portion (13a).

[0008]

With the above construction, in the present invention, the movable seedling placing section (13b) and the fixed seedling placing section (13) in the expanded state.
The joint part (40) with (a) is connected by the first connecting member (33) at the seedling vertical feeding part in the lower part of the seedling mounting part in the vertical direction, and the second part is formed at the intermediate part in the vertical direction of the seedling mounting part. By connecting with the connecting member (33) of No. 3, and further by connecting with the third connecting member (44) at the upper part of the seedling placing part in the vertical direction, the seedling placing part can be attached and detached at three places in the vertical direction. Since it is fastened, looseness and instability after fastening in the deployed state can be eliminated and firm fastening can be achieved, and thereby the seedling placing table (13a, 13b) can be stably held. Become.

The reference numerals in parentheses described above are shown for reference to the drawings and do not limit the structure of the present invention.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a riding multi-row rice planting machine equipped with the seedling placing device of the present invention. The riding rice planting device 1 has a traveling vehicle 2 on its front side and a seedling placing device 3 on its rear side. Are mounted and supported via the lifting link mechanism 5.

The traveling vehicle 2 has a traveling machine body 8 supported by front wheels 6 and rear wheels 7, and an engine section 9 is mounted in front of the front wheels 6 of the traveling machine body 8. Further, the seedling placing device 3 has a float 1 at the bottom thereof.
0 is arranged, and the planting device 1 is provided above the float 10.
1 is arranged, and above this planting apparatus 11, a seedling placing table 12 is arranged obliquely toward the front.

As shown in FIG. 2, this seedling placing table 12 is
Fixed seedling placing section 13a for placing a plurality of rows of seedlings, movable seedling placing section 13b for similarly placing a plurality of rows of seedlings, and placing / moving these fixed seedling placing section 13a and movable seedling placing section 13b. It consists of apron 15 and apron. A plurality of the fixed seedling placing portions 13a are arranged in the lateral direction.
The movable seedling placing portion 13b is arranged further outside in the lateral direction of a, and the movable seedling placing portion 13b is overlapped with the fixed seedling placing portion 13a to be foldable (FIG. 1).
reference).

In the present invention, the joint between the movable seedling placing portion 13b and the fixed seedling placing portion 13a in the expanded state is
The seedling vertical feeding part in the lower part of the seedling placing part and the intermediate part of the seedling placing part are detachably connected by the first and second connecting members, and the upper part of the seedling placing part in the vertical direction is connected to the third part. It is configured to be detachably connected by a connecting member.

That is, as shown in FIG. 3, the joint 40 between the movable seedling placing portion 13b and the fixed seedling placing portion 13a in the unfolded state is the seedling vertical feeding conveyance under the seedling placing portions 13a and 13b. The parts 16a and 16b are detachably connected to each other at three places, that is, an intermediate part and an upper part in the vertical direction.

The fixed seedling placing portion 13a and the movable seedling placing portion 1
3b are provided with seedling vertical feeding / conveying units 16a, 16b each made up of a conveyor belt for feeding seedlings to the planting device 11, and these seedling vertical feeding / conveying units 16a, 16b are driven by a drive shaft. And, this seedling vertical feeding transport section 16
At the portions a and 16b, the joint portion 40 between the fixed seedling placing portion 13a and the movable seedling placing portion 13b is connected by the connecting member 33 as the first connecting member.

The connecting member 33, as shown in FIG.
It has a handle provided on the proximal side and a connecting rod 33a having a screw formed at the tip thereof, and the connecting rod 33a is provided so as to penetrate both lateral ends of the back surface of the movable seedling placing portion 13b. . The tip of the connecting rod 33a has a connecting plate 4 integrally fixed to the bearing material 41 of the fixed seedling placing portion 13a.
It is screwed to 2. As a result, in the expanded state,
It is possible to firmly hold the connection state of the vertical seedling transporting section 16b of the movable seedling placing section 13b to the fixed seedling placing section 13a.

Further, the longitudinal intermediate portions of the seedling placing portions 13a and 13b are U-shaped metal fittings 43 attached to the stay 24.
The connection rod 33a of the connection member 33 (same as the first connection member) as the second connection member is screwed to the fixed seedling placement portion 13a and the movable seedling placement portion 13b.

Further, the upper portions of the seedling placing portions 13a and 13b in the vertical direction are connected by a clamp member 44 as a third connecting member. This clamp member 44 is shown in FIG.
As shown in (a) and (b), a clamp base having a plate 45 attached to the movable seedling placing portion 13b side and having a positioning pin 46 implanted therein, and a cutout hole 47 attached to the fixed seedling placing portion 13a side. 48 and a stopper 50 that is mounted on the clamp base 48 and moves and operates the clamp arm 49.

Then, when the movable seedling placing portion 13b is changed from the folded state to the expanded state, the positioning pin 46 is pushed laterally along the opening side guide surface 55 of the cutout hole 47 to be fitted into the cutout hole 47. To do. Further, as shown by the broken line in FIG. 5B, the stopper 50 is rotated upward about the fulcrum 51 with respect to the fitted positioning pin 46, and the clamp arm 49 is hooked on the positioning pin 46. By returning it to the original position, the movable seedling placing part 13
b and the fixed seedling mounting part 13a are fastened.

As a result, when the movable seedling placing portion 13b is changed from the folded state to the expanded state, the positioning pin 46 provided on the movable seedling placing portion 13b side is defined by the action of the opening side guide surface 55 of the cutout hole 47. Since it is guided so as to come to the position, when it is fastened with the fastener 50, it is automatically guided to the specified position. Further, the clamp member 44 prevents the joint portion 40 from being loosened or displaced.

In this embodiment, the movable seedling placing portion 13
The case where the plate 45 is attached to the b side and the clamp base 48 is attached to the fixed seedling placing portion 13a side has been described. On the contrary, the clamp base 48 is attached to the movable seedling placing portion 13b side and the fixed seedling placing portion 13a. The plate 45 may be attached to the side.

Next, the folding structure of the movable seedling placing portion 13b and the fixed seedling placing portion 13a will be described with reference to FIGS.

As shown in FIG. 6, the fixed seedling placing portion 13
The link arm 20 is provided on the back side of the movable seedling placing portion 13b and the movable seedling placing portion 13b.
This link arm 20 is connected by
It is provided at two locations above and below 2 (see FIG. 9). The link arm 20 is made of H-shaped steel, and one end of the link arm 20 is rotatably attached to the lateral outer side portion of the movable seedling placing portion 13b. That is, as shown in FIGS. 6 and 9, the link arms 20 at the upper and lower portions are connected by the fulcrum shaft 21, while the fulcrum shaft 2 is provided on the back surface of the movable seedling placing portion 13b.
A metal fitting 22 having an L-shaped cross section having a hole through which 1 is inserted is attached by a bolt 23, and the fulcrum shaft 21 and the movable seedling mounting portion 13b are rotated in the direction of arrow A in FIG. It is said to be movable.

The other end of the link arm 20 is pivotally attached to the fixed seedling placing portion 13a side. That is,
As shown in FIGS. 6 and 9, a metal fitting 25 having an L-shaped cross section is provided on the rear surface of the fixed seedling placing portion 13a by a bolt 26 so that the seedling placing base 12
It is attached to the upper and lower two places of this metal fitting 25,2
The five are connected by a stay 24. Further, a guide plate 27 is attached to the stay 24, and a long hole 30 is formed in the guide plate 27 in the lateral direction. This slot 30 has a recess 31 at its outer end (see FIG. 8).

On the other hand, a plate 28 is fixed to the link arm 20 with a bolt 29, and a pin 32 is attached to the link arm 20 so that the link arm 20 is sandwiched between the plate 28 and the guide plate 27. . At this time, the pin 32 is inserted into the elongated hole 30, and the pin 32 of the link arm 20 is slidable along the elongated hole 30. And the link arm 2
0 is rotatably attached to the guide plate 27 via the pin 32, and the movable seedling placing portion 13b is rotated by the A-direction rotation of the movable seedling placing portion 13b and the link arm 20. Folds like.

Further, as shown in FIGS. 6 to 9, a standing member 34 is erected inside the surface of the fixed seedling placing portion 13a adjacent to the movable seedling placing portion 13b. As shown in FIG. 9, the standing member 34 extends a mounting bolt 52 of the bearing material 41 in the vertical seedling feeding section 16a, and a fixing plate 53 provided on the front side of the fixed seedling mounting section 13a by the mounting bolt 52. Have been concluded. Further, the standing member 34 is formed with a screw hole 34b into which the connecting rod 33a of the connecting member 33 is screwed when the movable seedling placing portion 13b is arranged in the folded state. Then, when the movable seedling placing portion 13b is folded, the fixed seedling placing portion 13a
And the movable seedling mounting portion 13b are superposed on each other with the same surface facing the same direction.

As described above, in this embodiment, the bearing member 4
Since the standing member 34 is arranged by using the mounting bolt 52 of No. 1, it has a strong structure, and when the movable seedling placing portion 13b is folded, the movable seedling placing portion 13b can be firmly held. Further, the standing member 34 has two connecting members 33 at two locations along the longitudinal direction of the seedling placing portions 13a and 13b.
Since the screw hole 34b for fastening is provided, the movable seedling placing portion 13b can be stably held.

Further, as shown in FIG. 7, on the seedling placing surfaces of the fixed seedling placing portion 13a and the movable seedling placing portion 13b, seedling pressing guides are provided in holes (not shown) formed in the ribs 54. 17 is inserted and mounted so as to be vertically adjustable. And
Joining part 40 of fixed seedling placing part 13a and movable seedling placing part 13b
Is formed with ribs 54a and 54b which are divided into two and are arranged to face each other, and the seedling pressing guide 17 is inserted and mounted in a hole whose facing surface is open. Therefore, in the embodiment, the inner dimension l ₂ of the seedling pressing guide 17 in FIG.
Is set to be equal to or smaller than the inter-hole dimension l ₁ of the rib 54 of the movable seedling placing portion 13b, and the seedling holding guide 1
It is prevented from coming off (detaching) from the 7th hole. Thereby, even if the movable seedling placing portion 13b is in the folded state, the seedling pressing guide 17 does not come off from the rib 54.

Next, the operation of this embodiment will be described.

FIG. 4 shows a member structure when the movable seedling placing portion 13b is changed from the folded state to the unfolded state. To bring the seedling placing table 12 into the unfolded state, first, the movable seedling placing portion 13b.
When joining the seedling mounting portion 13a to the fixed seedling mounting portion 13a,
The positioning pin 46 of the clamp member 44 at the upper end of the vertical direction of 13 b is provided with the guide surface 55 on the opening side of the cutout hole 47.
So that it is fitted into the notch hole 47 along the line. From this state, the handle of the connecting member 33 at the seedling vertical feeding portion is operated to screw the connecting rod 33a of the connecting member 33 to the connecting plate 42 on the fixed seedling placing portion 13a side. Subsequently, in the same manner, the handle of the connecting member 33 in the longitudinal intermediate portion of the seedling placing portions 13a and 13b is operated to move the connecting member 33.
The connecting rod 33a is screwed to the U-shaped metal fitting 43. Next, the clamp 50 of the clamp member 44 is operated to fasten the clamp arm 49.

As a result, the movable seedling placing portion 13b is fastened to the fixed seedling placing portion 13a at three points in the vertical direction of the seedling placing portions 13a and 13b, and is firmly held in the deployed state. Become.

The movable seedling placing portion 13b is the seedling placing table 12
Since it is on the left and right sides, the above work is performed separately or simultaneously on the left and right movable seedling placing portions 13b. Further, the above work is an example, and the work order does not have to be followed, and there is no problem even if the order is changed a little.

Next, in order to fold the movable seedling placing portion 13b from the unfolded state of the seedling placing table 12 as shown in FIG. 6, contrary to the above, in the lower and middle portions of the seedling placing portions 13a and 13b in the vertical direction, By operating the handles of the connecting members 33, 33, the connecting rod 33a is unscrewed from the connecting plate 42 and the U-shaped metal fitting 43. Then, when the link arm 20 is pulled laterally outward, the pin 32 of the link arm 20 slides along the long hole 30, and the movable seedling placing portion 13b becomes the fixed seedling placing portion 13a.
Pulled away from. Then, when the link arm 20 is further pulled outward in the lateral direction, the pin 32 of the link arm 20 enters the recess 31 that is offset with respect to the elongated hole 30 at the outer end of the elongated hole 30. As a result, the link arm 20 is tilted by the weight of the movable seedling placing portion 13b and is held at the position where the end portion of the plate 28 abuts the side surface of the guide plate 27. Moreover, the pin 32 does not slide along the long hole 30 because it enters the recess 31 of the long hole 30. As described above, since the link arm 20 is inclined, the movable seedling placing portion 13b is easily rotated about the fulcrum shaft 21 in the direction of arrow A in FIG.

Subsequently, the link arm 20 and the movable seedling placing portion 13b are rotated inward (in the direction opposite to the arrow B),
The link arm 20 is placed upright in a substantially right angle state. Then, the handle of the connecting member 33 is operated to screw the tip of the connecting rod 33a into the screw hole 34b of the standing member 34. As a result, the fixed seedling placing portion 13a and the movable seedling placing portion 13b can be overlapped and arranged in a folded state in which the same surface faces the same direction.

[0036]

As described above, according to the present invention, the joints between the movable seedling placing portion and the fixed seedling placing portion in the expanded state are fastened at three locations in the longitudinal direction of the seedling placing portion. As a result, it is possible to eliminate rattling and instability of the seedling placing portion in the deployed state and firmly fasten it. In particular, in the present invention, the connection state of the seedling vertical feed drive unit can be firmly held by connecting at the seedling vertical feed site among the fastening points.

In the present invention, the upper part of the seedling placing part in the vertical direction is connected by the clamp member, and the positioning pin is pushed in the lateral direction along the guide surface on the opening side of the notch hole. It is possible to firmly fasten the joint portion without causing play or displacement.

[Brief description of drawings]

FIG. 1 is a side view of a multi-row rice transplanter with a seedling placing device folded.

FIG. 2 is a plan view of the multi-row rice transplanter with the seedling placing device deployed.

FIG. 3 is a schematic plan view showing a seedling transport section of the multi-row rice transplanter.

FIG. 4 is a plan view showing a state in which the seedling placing device is deployed.

FIG. 5A is an exploded plan view of a clamp member. (B) It is the front view.

FIG. 6 is a front view of a state in which the seedling placing device is deployed.

FIG. 7 is a front view of the seedling placing device in a folded state.

FIG. 8 is an enlarged view of a main part of a guide plate.

FIG. 9 is a side view of essential parts of the multi-row rice transplanter with the seedling placing device folded.

[Explanation of symbols]

 1 Passenger rice planting machine 2 Traveling vehicle 3 Seedling placement device 11 Planting device 12 Seedling placement base 13a Fixed seedling placement part 13b Movable seedling placement part 20 Link arm 21 Support shaft 22,25 Metal fittings 23,26,29 Bolt 24 Stay 27 Guide plate 28 Plate 30 Long hole 31 Recess 32 Pin 33 Connecting member 33a Connecting rod 34 Standing member 35 Locking plate 37 Stopper pin 40 Joining part 44 Clamping member 46 Positioning pin 47 Notch hole 49 Clamp arm 55 Opening side guide surface

Claims (2)

[Claims] 1. A plurality of seedling placing portions for placing seedlings are arranged in a lateral direction to form a seedling placing base, and a movable seedling placing portion located at the outermost side in the lateral direction in a deployed state is folded to a fixed seedling placing portion. In the enabled multi-row rice transplanter, the joint between the movable seedling placing part and the fixed seedling placing part in the expanded state is provided in the longitudinally lower part of the seedling placing part in the longitudinal direction and the middle part of the seedling placing part. And a second connecting member that is detachably connected with each other, and a third connecting member that is detachably connected at an upper portion of the seedling placing portion in the vertical direction. A row planter. 2. A plate provided on either one of the movable seedling placing portion side and the fixed seedling placing portion side and having positioning pins planted, the third connecting member serving as a clamp member, and the fixed seedling placing portion side and The movable seedling has a notch hole that is provided on the other side of the movable seedling placement portion side and into which the positioning pin is fitted, and a clamp arm that clamps and fixes the positioning pin that is fitted into the notch hole. When the placing part is changed from the folded state to the expanded state, the positioning pin is laterally pushed along the guide surface on the opening side of the cutout hole to fasten the movable seedling placing part and the fixed seedling placing part. The multi-row rice transplanter according to claim 1.