JP3339754B2 - Tajo rice transplanter - Google Patents

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 having a plurality of seedling mounting portions arranged in a lateral direction, and more particularly to a structure of a deployable and foldable seedling mounting table.

[0002]

2. Description of the Related Art In a multi-row rice transplanter, a seedling mounting table is formed by arranging a plurality of seedling mounting sections on which seedlings are mounted in a horizontal direction, and a movable seedling mounting section located at the outermost side in the horizontal direction in a deployed state is fixed. Although it is possible to fold the seedling rest by superimposing it on the seedling rest part, the larger the number of strips, the larger the amount of protrusion from the body in the left and right lateral direction, so that when traveling on a general road, the vehicle Therefore, for example, the movable seedling placing portions located on the left and right outermost sides are overlapped with the fixed seedling placing portion so as to be folded.

An example of such a multi-row rice transplanter is disclosed in Japanese Utility Model Publication No. 60-2727. This multi-row rice transplanter is configured such that a plurality of seedling mounting portions on which seedlings are mounted are arranged in a lateral direction to form a seedling mounting base, and a movable seedling mounting portion located on the outermost side and a fixed adjacently located inside the movable seedling mounting portion. The seedling placing part is connected to a seedling holding rod projecting from the front side of both seedling placing parts by a hinge, and the movable seedling placing part is fixed to the fixed seedling placing part by using the hinge as a pivot point. There is a type in which a plurality of deployed positions in the lateral direction are switched to a folded position superimposed thereon.

[0004] In such a seedling placing apparatus, a movable seedling placing portion located on the outermost side in the lateral direction of the seedling placing base is superimposed on a fixed seedling placing portion adjacent to the inside thereof so that the seedling placing surfaces are aligned with each other. The movable seedling placing part and the fixed seedling placing part are deployed and arranged in the horizontal direction on the same plane.

[0005]

However, in such a conventional multi-row rice planting machine, the operation of folding the seedling mounting table is complicated, and in the folded state, the seedling holding rod of the movable seedling mounting section has a problem. A problem that the thickness of the seedling mounting base is increased because the seedling holding rod of the fixed seedling mounting part is superimposed on the seedling holding rod, and that the movable seedling mounting part cannot be folded to the fixed seedling mounting part with the seedling mounted. was there. Further, when a working machine such as a granular fertilizer is connected behind the driver's seat, there is a problem that the movable seedling placing portion cannot be folded.

The present invention has been made to solve such a problem, and an object of the present invention is to make it possible to easily and surely fold a movable seedling placing part with respect to a fixed seedling placing part. To provide a rice transplanter.

[0007]

In order to achieve this object, the present invention provides a seedling mounting portion (13a, 13a) on which seedlings are mounted.
A plurality of b) are arranged in the horizontal direction to form a seedling mounting table (12), and at least the movable outermost mounting section (13b) located at the outermost side in the horizontal direction in the unfolded state is superimposed on the fixed seedling mounting section (13a). In the multi-row rice transplanter in which the seedling mounting table (12) is foldable, one end is rotatable on the rear side of the movable seedling mounting section (13b) at the laterally outer side of the movable seedling mounting section (13b). The shaft (21) is attached and the other end is fixed seedling mounting part (1
A link arm (20) rotatably attached to a shaft (32) is provided on the 3a) side, and a rotation shaft (21, 32) at one end or the other end of the link arm (20).
Is configured to be slidable in the horizontal direction.

A stopper (37) is provided in the middle of the rotation of the movable seedling mounting portion (13b) about the rotation shaft (21) at one end, and the stopper (37) is provided.
Thus, the stop position of the movable seedling placing portion (13b) in the rotation direction is regulated.

[0009]

According to the above construction, in the present invention, in the unfolded state of the seedling mounting base (12), the movable seedling mounting part (13b) is arranged laterally adjacent to the outside of the fixed seedling mounting part (13a). I have. One end of the movable seedling placing portion (13b) is rotatably mounted on a laterally outer portion of the movable seedling placing portion (13b) on the rear surface of the movable seedling placing portion (13b), and the other end is a fixed seedling placing portion (13). A link arm (20) rotatably mounted on a shaft (32) is provided on the 13a) side. The link arm (20) has a pivot shaft (21, 32) at one end or the other end that is slidable in the horizontal direction. When the arm (20) is pulled outward in the lateral direction, the link arm (20) moves in the same direction together with the movable seedling placing portion (13b). Next, when the movable seedling mounting portion (13b) is rotated outward around the rotation shaft (21) at one end, the movable seedling mounting portion (13b) is rotated by the stopper pin (37) provided in the middle of the rotation. ), The movable seedling mounting part (13
Stop at the regulation position in the rotation direction of b). In this state, the movable seedling placing portion (13b) and the link arm (20) are rotated inward, and are placed upright at a position where the link arm (20) is substantially at a right angle. As described above, the fixed seedling placing portion (13a) and the movable seedling placing portion (13b) can be folded with the same surface facing in the same direction.

Note that the reference numerals in parentheses described above are for reference to the drawings, and do not limit the configuration of the present invention.

[0011]

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 machine 1 has a traveling vehicle 2 on the front side and a seedling placing device 3 on the rear side. Are mounted and supported via a lifting link mechanism 5.

The traveling vehicle 2 has a traveling body 8 supported by a front wheel 6 and a rear wheel 7, and an engine section 9 is mounted forward of the front wheel 6 of the traveling body 8. The seedling placing device 3 has a float 1 at its lower part.
0, and the planting device 1 is disposed above the float 10.
1, and a seedling mounting table 12 is provided above the planting device 11 so as to be inclined obliquely forward.

As shown in FIG. 2, the seedling mounting table 12
A fixed seedling placing part 13a for placing a plurality of seedlings, a movable seedling placing part 13b for placing a plurality of seedlings similarly, and placing and sliding these fixed seedling placing part 13a and movable seedling placing part 13b. And an apron 15. The fixed seedling placing part 13a
Are arranged in the horizontal direction, and the movable seedling mounting portion 13b is arranged further outside in the horizontal direction of the fixed seedling mounting portion 13a.

In the present invention, the movable seedling placing portion 13 is provided.
On the back side of b, a link arm is provided, one end of which is rotatably mounted on the laterally outer portion of the movable seedling mounting portion 13b and the other end is rotatably mounted on the fixed seedling mounting portion 13a.
Either one end or the other end of this link arm is configured to be slidable in the lateral direction.

As shown in FIGS. 3 to 6, the rear surfaces of the fixed seedling placing portion 13a and the movable seedling placing portion 13b are connected by a link arm 20. It is provided in. The link arm 20 is made of H-shaped steel, and has one end rotatably mounted on the laterally outer portion of the movable seedling placing portion 13b.
That is, the upper and lower link arms 20, 20 are connected by a fulcrum shaft 21. On the other hand, the movable seedling mounting portion 13b is provided with L-shaped fittings 22, 22 having a hole through which the fulcrum shaft 21 is inserted. Attached by 23,
The fulcrum shaft 21 and the movable seedling mounting portion 13b are rotatable via these brackets 22,22.

The other end of the link arm 20 is rotatably mounted on the fixed seedling mounting portion 13a. That is,
The fixed seedling mounting portion 13a has a section L
Metal fittings 25, 25 are attached to upper and lower two places of the seedling mounting table 12, and the metal fittings 25, 25 are connected by a stay 24. A guide plate 27 is attached to the stay 24, and the guide plate 2
7, a long hole 30 is formed in the lateral direction. This long hole 3
0 has a recess 31 offset at its outer end (see FIG. 5). On the other hand, a plate 28 is fixed to the link arm 20 with bolts 29.
A pin 32 is attached to the link arm 20 so as to sandwich the link arm 20 between the guide arm 8 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. The link arm 20 is rotatably mounted on the guide plate 27 via the pin 32.

The movable seedling placing part 13b and the fixed seedling placing part 13 in the unfolded state are provided on the back of the movable seedling placing part 13b.
and a connecting member 33 for connecting the member a. The connecting member 33 includes a connecting rod 33a and a nut part 33b. The connecting rod 33a is provided so as to penetrate both ends in the lateral direction on the back surface of the movable seedling placing part 13b. A handle is formed on the side. The nut portion 33b is provided at the outermost lateral end of the fixed seedling placing portion 13a. And the movable seedling placing part 1
When arranging 3b in the deployed state, the distal end of the connecting rod 33a is screwed to the nut 33b and tightened.

Further, an upright member 34 is provided inside the surface of the fixed seedling placing portion 13a adjacent to the movable seedling placing portion 13b.
Is erected. The upright member 34 has 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 a folded state. In the folded state of the seedling mounting table 12, the same surface of the fixed seedling mounting portion 13a and the movable seedling mounting portion 13b are arranged in an overlapping manner in the same direction. In this case, the connecting rod 33a is screwed into the screw hole 34b. Will be worn.

Next, according to the present invention, a stopper is provided in the middle of rotation of the movable seedling placing portion 13b around the pivot shaft 21 at one end, and the stopper is used to rotate the movable seedling placing portion 13b. The stop position in the direction is regulated.

That is, as shown in FIGS. 3 to 6 described above, a locking plate 35 fixed to the fulcrum shaft 21 and fixed to the link arm 20 by bolts 36 is provided at one end of the link arm 20. Have been. And this locking plate 35
A stopper pin 37 is provided at an appropriate position. The stopper pin 37 penetrates the link arm 20 and protrudes from the rear surface.

As shown in FIG. 7, the fixed seedling placing part 13a and the movable seedling placing part 13b are each provided with a planting device 1a.
1, a seedling transport section 16a comprising a conveyor belt for sending seedlings to
16b is mounted. The seedling transport section 16a of the fixed seedling loading section 13a and the seedling transport section 16b of the movable seedling loading section 13b
Is driven by a drive shaft. In addition, fixed seedling placing part 1
A seedling holding rod 17 is mounted on each of the seedling placing surfaces of 3a and the movable seedling placing portion 13b.

Next, the operation of this embodiment will be described with reference to FIGS.

FIG. 8 shows an unfolded state in which the fixed seedling placing part 13a and the movable seedling placing part 13b are arranged in the horizontal direction. To fold the movable seedling placing part 13b from this state, the connecting member 3 is required.
By operating the handle of No. 3, the connecting rod 33a and the nut 33b
Remove the screw. When the link arm 20 is pulled outward in the horizontal direction, the pin 32 of the link arm 20 slides along the long hole 30 as shown in FIG.
b is separated from the fixed seedling placing part 13a. Then, when the link arm 20 is further pulled outward in the lateral direction, FIG.
As shown, the pin 32 of the link arm 20 enters the recess 31 offset from the long hole 30 at the outer end of the long hole 30. As a result, the link arm 20 is inclined by the weight of the movable seedling placing portion 13b, and is held at a position where the end of the plate 28 is in contact with the side surface of the guide plate 27. Moreover,
Since the pin 32 enters the recess 31 of the long hole 30, it does not slide along the long hole 30. As described above, since the link arm 20 is inclined, the movable seedling placing portion 13b is easily rotated outward about the fulcrum shaft 21. Further, when the movable seedling placing portion 13b rotates outward, the metal fitting 22 fixed to the movable seedling placing portion 13b hits the stopper pin 37 of the locking plate 35 and stops at that position.

Subsequently, as shown in FIG. 11, the link arm 20 and the movable seedling placing portion 13b are rotated inward from the state shown in FIG. 10, and the link arm 20 is placed upright at a substantially right angle. Then, by operating the handle of the connecting member 33, the distal end of the connecting rod 33 a is screwed into the screw hole 34 b of the upright member 34. Thereby, the fixed seedling mounting part 13a and the movable seedling mounting part 13b can be overlapped and arranged in a folded state with the same surface facing in the same direction.

As the stopper mechanism, FIG.
As shown in FIGS. 2 to 14, the stopper plate 37 is attached to the locking plate 35 by using an elastic material, and the stopper pin 37 is slightly inserted into the hole 38 provided in the metal fitting 22 to stop the stopper plate 35. good.

In the above, since the link arm 20 supporting the movable seedling placing portion 13b is formed in a rectangular frame by the support shaft 21 and the stay 24, a strong frame can be obtained. Further, since the support shaft 21 is provided outside the movable seedling placing portion 13b, the support shaft 21 can be used as a handle.

[0028]

As described above, according to the present invention, a link arm having both left and right ends rotatably mounted on a shaft is provided on the back of a movable seedling placing portion, and the rotation shaft of the link arm is movable. By being configured to be slidable along the rear surface of the seedling mounting portion, the movable seedling mounting portion is pulled out in the lateral direction and separated from the fixed seedling mounting portion, and then the movable seedling mounting portion is rotated together with the link arm to be folded. Can be easily folded.

Further, since the stopper is provided in the middle of the rotation when the movable seedling placing part rotates, the rotation to the regulation position is permitted, so that the operation at the time of folding is easy.

[Brief description of the drawings]

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

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

FIG. 3 is a front view of a state where the seedling placing device is expanded.

FIG. 4 is a front view of a state where the seedling placing device is folded.

FIG. 5 is an enlarged view of a main part of a guide plate.

FIG. 6 is a side view of a main part of the multi-row rice transplanter in a state where the seedling placing device is folded.

FIG. 7 is a schematic plan view showing a seedling transport section of the multi-row rice transplanter.

FIG. 8 is a view showing a state where the movable seedling mounting table is folded.

FIG. 9 is a diagram showing a state where the movable seedling mounting table is folded.

FIG. 10 is a diagram showing a state where the movable seedling mounting table is folded.

FIG. 11 is a diagram showing a state where the movable seedling mounting table is folded.

FIG. 12 is a view showing another embodiment of the stopper mechanism.

FIG. 13 is a view showing another embodiment of the stopper mechanism.

FIG. 14 is a diagram showing a cross section taken along the line AA of FIG. 13;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Riding rice transplanter 2 Traveling vehicle 3 Seedling device 11 Planting device 12 Seedling stand 13a Fixed seedling placing portion 13b Movable seedling placing portion 20 Link arm 21 Support shaft 22, 25 Metal fittings 23, 26, 29, 36 Bolt 24 Stay 27 Guide Plate 28 Plate 30 Slot 31 Depression 32 Pin 33 Connecting member 34 Standing member 35 Locking plate 37 Stopper pin

Claims (2)

(57) [Claims] 1. A seedling mounting table is formed by arranging a plurality of seedling mounting portions on which seedlings are mounted in a lateral direction, and a movable seedling mounting portion located at least on the outermost side in a lateral direction in an unfolded state is overlapped with a fixed seedling mounting portion. In the multi-row rice transplanter, wherein the seedling mounting table is foldable, one end is rotatably mounted on the rear side of the movable seedling mounting section at a laterally outer side of the movable seedling mounting section, and the other end is fixed. A link arm rotatably mounted on the seedling mounting portion side is provided, and a rotation shaft at one end or the other end of the link arm is configured to be slidable in a lateral direction. Article rice transplanter. 2. A stopper is provided in the middle of rotation of the movable seedling placing part about the pivot shaft at the one end, and the stopper regulates a stop position of the movable seedling placing part in the rotating direction. 2. The multi-row rice transplanter according to claim 1, wherein: