JPH0112448B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seedling stand device for a rice transplanter, for example, in which the left and right width of the seedling stand can be reduced in a rice transplanter for multi-row planting.

Conventionally, as shown in the publications of Utility Model Application No. 53-3221, Utility Model Application No. 52-145126, and Utility Model Application No. 52-157418,
A technique has been developed to reduce the external dimensions of the seedling stand by bending the outer side of the stand through a hinge to the upper side.

However, in the above-mentioned prior art, the rows on the outside of the seedling stand are not bent to a position where they overlap the top surface of the rows on the center side, and the rows on the center side and the rows on the outside are not bent. Both ends of the hinge are fixed at the sides, and the swinging displacement of the hinge does not cause the outer row stand to move toward or away from the seedling platform in the left-right direction, so the posture of the outer row stand is unstable when it is bent. easy to become,
In addition, the outer strips could not be easily separated or joined, and there were problems in handling operations such as the support structure such as the installation of hinges, and the direction and range of movement of the strips.

However, the present invention provides a seedling loading stand device for a rice transplanter in which a row on the outside of the seedling loading stand is provided in a way that can be bent into the inside of the machine via a hinge, in which a row on the outside is attached to a row on the center side of the seedling loading stand. A plurality of rotational fulcrums are provided in a multi-fold shape on the hinge that connects the seedlings, and both ends of the hinge are connected via a shaft to a row on the center side and a row on the outside of the seedling stand, and the shaft is The hinge on the fulcrum is rotated to move the row stand on the outside of the seedling stand toward and away from the left and right, and the hinge is bent around the pivot point to move the upper side of the row stand on the center side of the seedling stand. The structure is characterized in that the striations on the outer side are overlapped with each other.

Therefore, since the hinge is rotated around the axis,
By displacing the outer strip in the left-right direction with respect to the center strip, separation or joining can be performed effectively, and since the hinge is bent in multiple stages using multiple pivot points, the center strip can be easily separated or joined. By bending the outer struts so as to overlap them on the upper surface side, the outer strut posture during bending can be stabilized and supported, and the movement direction and range of the outer struts can be changed more easily than before. can be easily set, and the support function and handling operability of the strip stand can be easily improved.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

Fig. 1 is an overall schematic side view of a riding rice transplanter for multi-row planting, and Fig. 2 is a plan view of the same.
4 and 5 are connection frames that connect the vehicle bodies 2 and 3 so as to be bendable only in the horizontal direction via a rotation fulcrum shaft 6; Front and rear running wheels mounted on the shaft, 1
1 is a column whose base end is fixed to the front vehicle body 2; 12;
13 is a driver's seat mounted above the rear of the front vehicle body 2 via the support 11; 14 is a steering handle provided above the front of the front vehicle body 2; 15 is a steering handle provided above the front of the front vehicle body 2; This is an engine mounted on the rear vehicle body 3.

In addition, 16 in the figure is a planting part for six-row planting that is installed in the front part of the front running vehicle body 2 via a three-point link mechanism 17 so as to be able to be raised and lowered, and 18 is a planting part that can be moved back and forth from side to side. 19 is a planting claw for taking out one seedling from the seedling mounting platform 18 and planting it; 20 is a transmission case to which the seedling mounting platform 18 and the planting claw 19 are attached; 21 is a transmission case 20 22 is a front bumper attached to the transmission case 20, and is configured to appropriately drive the seedling platform 18 and planting claws 19 via the PTO shaft 23 to continuously plant seedlings. .

As shown in FIG. 3, the seedling platform 18 has a sliding rail 24 fixed to the rear surface of the inclined intermediate portion thereof, and
A seedling receiving plate shu 26 is fixed to the back surface of the inclined lower end of the stand 18 via a rail 25, and a support roller 27, which is a supporting sliding body, is fixed to the rail 24 and shu 26.
The guide rail portion 28a of the seedling take-out plate 28 is exposed, and the seedling stand 18 is configured to be reciprocated in the left-right and lateral directions via an arm 29 and a transverse feed shaft 30.

Further, a pair of upper and lower pressers 31 and 32 are fixed to the left and right outer sides of the lower end of the slope of the seedling table 18, and a seedling pine presser 33 is attached between the pressers 31 and 32, and a seedling presser is attached to the presser table 32. It is configured to attach a rod 34.

As shown in FIGS. 4 to 8, the seedling stand 18
The left and right outermost strips 18a are the same as the other center strips 1.
8b is divided and formed, and these strip stands 18a,
18b are interconnected by a link hinge 36, which is a so-called two-fold hinge element having two pivot points 35a and 35b, and the outer strip 18a is folded over the upper surface of the inner strip 18b. are doing.

The said strip stands 18a, 18b are the strip stands 18a, 1
The rails 24, 25 and the seedling presser rod 34 are separated at the center of the rib 37 formed at the center of the space 8b.
are also separated in the same way. Also, the rail segment 25a and the rail main body 2 on the lower surface side of this rib 37
A pair of left and right bearing plates 38a, 38b, 39a, 39b are arranged parallel to each other in two stages in the vicinity of the rail segment 25a in abutting manner.
8a, 38b, 39b and each shaft 40 between the rib 37 surfaces
The cylindrical shafts 41a, 41b, 41 can be rotated freely via
c, 41d are vertically installed, and these cylinder shafts 41a, 41
The two ends of the two link hinges 36 are pivotally connected to the two link hinges 36, 41b and 41d in an inclined manner.

Further, a rotation shaft 42 is vertically provided between the rail main body 25b and the rib 37 surface, and the rail segment 25a
The proximal end of a hook member 43 that engages the distal end hook 44 with the cylindrical shaft 41a provided with the cylindrical shaft 41a is fixed to the rotation shaft 42, and the hook member 43 is operated by operating the handle 45 of the rotation shaft 42 that extends above the surface of the rib 37. Appropriately adjust the cylinder shaft 4
By engaging and disengaging from 1a, the strip stand 18a,
18b is connected or disconnected.

Further, a torsion spring 46 is interposed between the hook member 43 and the rail main body 25b, and the hook member 43 is configured to normally act on the cylinder shaft 41a side.

Further, as shown in FIG. 6, a star wheel 47 for vertically feeding the seedlings is attached to a vertical feeding shaft 48, and is spline-fitted to the vertical feeding shaft 48b of the row stand 18b at the position of the rib 37 via a spring 49. The vertical feed shaft 48a of the strip stand 18a is removably connected to the joint sleeve 50 by a spline connection, and when the strip stand 18a is connected to the strip stand 18b, the shaft 48a is drivingly connected to the vertical feed shaft 48b. ing.

The present invention is constructed as described above, and from the connected state of the row stands 18a and the row stands 18b shown in FIGS. In the case of reducing the
The handle 45 is rotated against the spring 46 to separate the hook member 44 of the hook member 43 from the cylinder shaft 41a.

After that, when the strip 18a is pulled outward, that is, in the direction of the solid line arrow in the figure, as shown in FIGS. 7 and 8,
The link hinge 36 rotates around the side shaft 40 of the pedestal 18b to a position where it is parallel to the rail 25, and there is a space between the outer pedestal 18a and the inner pedestal 18b of width W in the left and right directions, as well as in the vertical direction. At the same time, the vertical feed shaft 48a of the strip stand 18a is separated from the vertical sleeve 50, and the connection with the vertical feed shaft 48b is released.

When the strip 18a is bent toward the strip 18b as shown in FIG.
a is held in position by a link hinge 36 so that it overlaps the upper surface of the strip base 18b as shown by the imaginary line in the same figure.
The width of the seedling stand 18 on the left and right sides can be reduced by the width of the row stand 18a.

In addition, in the above-mentioned folding structure of the row stand 18a, a positional deviation of width L occurs between the row stand 18b and the seedling presser rod 34 of the row stand 18b when folded. This eliminates inconveniences such as interference caused by contact of the seedling presser rod 34, and has the advantage that the overlap (height) width can be kept low even when the seedling presser rod 34 is attached.

Furthermore, the rotation fulcrum 35 of the link hinge 36
By increasing the distance between a and 35b,
Even if the width L is increased to increase the positional deviation, for example, when folding the seedling pine presser 33 with the seedling pine presser 33 still attached, the overlapping of the seedling pine presser 33 is eliminated, and the seedling pine presser 33 This allows folding with a small overlap width when the holder is attached.

Furthermore, there are two pivot points 35a and 35b.
Instead of the link hinge 36 having a
8 may be bent approximately 90 degrees, and this outer portion may be erected at right angles to the center portion to reduce its width.

In addition, when the above-mentioned link hinge 36 is used, compared to the above-mentioned one-stage folding structure using a hinge having one rotational fulcrum, the position of the folding fulcrum is not limited to the top position of the other pedestal. These fulcrum positions can be set, for example, within the pedestal rib 37 or in the pedestal 18.
It has the advantage that it can be freely selected at a position such as the back side of a and 18b that does not interfere with other objects.

As is clear from the embodiments described above, the present invention provides a seedling platform device for a rice transplanter in which the row stand 18a on the outside of the seedling platform 18 is provided in a manner that it can be bent into the inside of the machine via a hinge 36. A plurality of pivot points 35a, 35b are provided in a multi-stage folded manner on the hinge 36 that connects the side row stand 18b with the outer side row stand 18a, and the center side row stand 18b and the outer side row stand The shafts 41a, 41b, 41c, 4 are attached to the stand 18a.
Connecting both ends of the hinge 36 via 1d,
The hinge 36 is rotated about the shafts 41a to 41d as fulcrums to move the row stand 18a on the outside of the seedling stand 18 towards and away from it in the left-right direction.
By bending the hinge 36 about 5b, the outer row stand 18a is placed on the upper surface side of the center side row stand 18b of the seedling stand 18.
The shafts 41a to 4
Since the hinge 36 is rotated about 1d, it is possible to displace the outer side strip 18a in the left-right direction with respect to the center side strip 18b to perform separation or joining, etc., and also to perform multiple rotations. Dynamic fulcrum 35a,
Since the hinge 36 is bent in multiple stages by 35b,
There is a strip 18a on the outer side on the upper surface side of the strip 18b on the center side.
It is possible to stabilize and support the posture of the outer strip 18a at the time of bending by bending so as to overlap the outer strip 18a, and the direction and range of movement of the outer strip 18a can be easily set compared to the conventional method. This has the effect of easily improving the support function and handling operability of the strip stand 18a.

[Brief explanation of drawings]

Figure 1 is an overall side view of the rice transplanter, Figure 2 is a plan view of the same, Figure 3 is a side view of the planting section, Figure 4 is a plan view of the main parts, and Figure 5 is a cross-sectional view of the main parts. 6 is a partially enlarged explanatory diagram, FIG. 7 is an explanatory diagram of the operating state of FIG. 4, and FIG. 8 is an explanatory diagram of the operating state of FIG. 5. 18... Seedling stand, 36... Hinge element.

Claims (1)

[Claims] 1 In a seedling platform device of a rice transplanter in which the row stand 18a on the outside of the seedling stand 18 is provided so as to be bendable to the inside of the machine via a hinge 36, the row stand 18 on the center side of the seedling stand 18
A hinge 36 that connects the outer strip 18a to b.
A plurality of pivot points 35a and 35b are provided in a multi-stage folded manner, and a row stand 18b on the center side of the seedling stand 18 is provided.
and shafts 41a, 41b, 4 on the outer side strip 18a.
Both ends of the hinge 36 are connected via 1c and 41d, and the hinge 3 is connected with the shafts 41a to 41d as fulcrums.
6 to rotate the row stand 18a on the outside of the seedling stand 18.
is operated toward and away from the left and right directions, and the rotation fulcrum 3
A seedling stand for a rice transplanter characterized in that the hinge 36 is bent around 5a and 35b so that the outer row stand 18a is superimposed on the upper surface side of the center side row stand 18b of the seedling stand 18. Device.