JPH0528977Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is a walking rice transplanter, specifically, an engine and a transmission case are mounted on the machine body, a transmission mechanism is installed inside the rear part of the transmission case, and A support frame whose rear part slopes upward is connected, a central planting device and a seedling stand are provided on the support frame, and at least one pair of left and right planting devices are provided on both sides of the central planting device in the width direction. This article relates to a walking rice transplanter consisting of:

(Prior art) Conventionally, in this seed rice transplanter, a center marker is provided at the front center of the machine body for aligning rows, and mark lines are placed on both sides of the machine body to guide the machine while running in the field. A pair of striation markers to be drawn are provided so as to be swingable from a substantially vertical retracted position to a horizontal striation position.

When planting seedlings, the line marker is swung to a horizontal line drawing position where its tip enters the field, and the marker is used to draw a marked line on the unplanted side of the field while planting. When the machine reaches the edge of the field and performs the turning operation, the center marker provided at the center of the machine is aligned with the mark line and the machine travels, so that the seedling row located at the outermost side of the already planted seedlings and The distance between adjacent rows, which is the same as the distance between planting rows set by the planting device, is ensured between the row of seedlings located inside the seedlings to be planted.

(Problems to be solved by the invention) However, in the case of the conventional rice transplanter mentioned above,
As described above, a pair of striation markers and a center marker are specially used as a means for aligning the strips, which increases the number of parts, and the structure of the swinging operation mechanism for the striation markers is complicated, requiring time and effort to assemble. It was hot.

The purpose of the present invention is to provide a projecting gate-shaped frame on both sides of the machine body in the width direction to support the left and right planting devices, so that row alignment can be performed using the connecting corners of the gate-shaped frame. With this, it is possible to perform the row alignment without using a striation marker or center marker, and moreover, the connection corner can be easily visually checked and the row alignment can be performed accurately. To provide a walk-behind rice transplanter that can reliably support left and right planting devices without increasing the rigidity of the rice transplanter.

(Means for solving the problem) The present invention mounts an engine 2 and a transmission case 3 on a fuselage 1, a transmission mechanism is installed inside the rear part of the transmission case 3, and the rear part is tilted upward. A support frame is connected, and a central planting device 5 and a seedling stand 4 are provided on the support frame, and left and right planting devices 6, 7 are provided on both sides of the central planting device 5 in the width direction.
In the walk-behind rice transplanter, each of the left and right planting devices 6, 7 is connected to a horizontal frame 13, which extends laterally from the transmission case 3.
13 and vertical frames 14, 14 extending rearward from the distal ends of the horizontal frames 13, 13, and a connecting portion between the horizontal frames 13, 13 and the vertical frames 14, 14. , of the left and right planting devices 6, 7, the planting position is substantially aligned with the outermost planting device 6, 7, and each of the left and right planting devices 6, 7 is attached to the support frame. , and were connected and supported via a support member extending laterally from the support frame.

(Function) With the above configuration, when planting seedlings while aligning the rows, the connecting portion between the horizontal frame 13 and the vertical frame 14 on the side of the already planted seedlings of the portal frame 15, and the connecting portion of the already planted seedlings adjacent to the connecting portion. By moving the aircraft while adjusting the distance between the seedlings located in the outermost row and the planting rows, the rows of seedlings located on the outermost side of the already planted seedlings and the rows of seedlings located inside the seedlings to be planted are separated. Seedlings can be planted while maintaining the spacing between adjacent rows that is almost the same as the spacing between planting rows.

(Example) The drawing shows a walk-behind rice transplanter according to the present invention, which is equipped with an engine 2 of a body 1 and a transmission case 3.
Transmission case 11 with a transmission mechanism installed at the rear of the
and a support frame 16 connected to the rear side of the transmission case 11 and having an upwardly inclined rear part, and a central planting device 5 and a seedling stand 4 are provided on the support frame, and , the central planting device 5
Left and right planting devices 6, 7 are provided on both sides in the width direction, and running wheels 9 are swingably supported on both sides in the width direction of the lower part of the transmission case 3 via swing cases 8, respectively. The rotational power transmitted from the engine 2 to the transmission case 3 is transmitted to the running wheels 9 via the swing case 8.
The vehicle body 1 is configured to travel by transmitting the information to the vehicle.

At the rear of the transmission case 3, a pair of planting claws 1 are provided on both left and right sides via the transmission case 11.
2 and 12 is provided, and the upper part of the transmission case 3 is provided with horizontal frames 13, 13 extending laterally from both sides in the width direction, and It supports a portal frame 15 consisting of vertical frames 14, 14 extending rearward from the tip, and supports the portal frame 1.
left and right planting device 6 having planting claws 12 at both ends of 5;
These left and right planting devices 6,
7 and each planting claw 12 of the central planting device 5, rotational power is transmitted from the transmission case 3 through a transmission mechanism built in the transmission case 11 and the gate-shaped frame 15.

Further, a support rod 16 is attached that extends rearward and upward from the rear of the central planting device 5, and a control handle 17 that extends rearward is attached to the rear upper end of the support rod 16.
while providing a reciprocating shaft 51 of a reciprocating mechanism installed in the central planting device 5 between the support rod 16 and the support rod 16.
supports a seedling platform 4 that is reciprocated in the left-right direction of the machine body 1 through the support plate 1, and extracts a predetermined number of seedlings mounted on the seedling platform 4 using each of the planting claws 12, for example, to plant a 30 cm thick seedling. The row spacing (m) is as if they were planted in the field.

A horizontal rod 18 extending in the left-right direction is provided at the lower part of the support rod 16, and mounting rods 1 are provided at both ends of the horizontal rod 18.
The rear portions of the left and right planting devices 6, 7 are supported through the support 9.

Further, in the lower part of the body 1, the central planting device 5
A center float 20 extending over almost the entire length of the aircraft body 1 is supported in a vertically swingable manner at a lower central position facing the center float 2 .
Side floats 21 extending rearward from near the mission case 3 are supported vertically swingably at lower positions facing each vertical frame 14 of the portal frame on both sides of the transmission case 3 in the lateral direction.

Therefore, the connecting portions of the horizontal frames 13, 13 and the vertical frames 14, 14 in the portal frame 15 are connected to the planting claws 1 of the left and right planting devices 6, 7.
2 and 12, and these connecting portions are designed to serve also as row alignment markers.

In addition, in the embodiment shown in the figure, between the transmission case 3 and the central planting device 5, a plurality of spare seedling stands 22 are installed between the traveling wheels 9, 9 in a backward inclined manner as shown in FIG. By accommodating various frames 1 in the gate-shaped frame 15, the structure is configured to keep the center of gravity of the fuselage 1 low, stabilize the left-right balance, and make the fuselage 1 more compact.
3 and 13 and the vertical frames 14 and 14 are arranged so as to be easily visible.

The present invention is constructed as described above, and when planting seedlings, as shown in FIG.
Horizontal frame 13 and vertical frame 14 on the planted seedling side of No. 5
The distance between the connection site and the seedling located in the outermost row of the already planted seedlings adjacent to the connection site is determined by the planting row spacing (m).
In other words, when the distance between planted rows (m) is 30 cm, the aircraft travels while adjusting the distance by eye to 30 cm. As a result, the connecting portion between the horizontal frame 13 and the vertical frame 14 can also be used as a row alignment marker, and the seedling row located at the outermost side of the already planted seedlings can be aligned with the row of seedlings that are currently planted, without the need to specially install a striation marker or a center marker. Seedlings can be planted while ensuring an adjacent row spacing a that is approximately the same as the planting row spacing (m) between the seedlings and the seedling row located inside the seedling.

In this case, in particular, the connection portion of the portal frame 15 is provided so as to almost match the planting position of the outermost planting device 6, 7 among the left and right planting devices 6, 7. Since the connecting portion is located at a position that is easily seen by the operator, which is far away from the body 1 and has no obstructions, visual inspection is easy and the line alignment can be performed accurately.

In the embodiment described above, as shown by the imaginary lines in FIG. 1, side markers 23, 23 are provided on the gate-shaped frame 15 or the left and right floats 21 to align the rows with adjacent seedlings located in the outermost row of the already planted seedlings. It may be installed as an auxiliary use. Further, the horizontal frame 13
Auxiliary lights 24, 24 may be attached to the gate-shaped frame 15 or the like to illuminate the connecting portion between the frame 14 and the vertical frame 14 or the side marker 23.If this auxiliary light 15 is attached, it will be difficult to align the rows when it gets dark. This makes it possible to improve the accuracy of the work.

(Effect of the invention) As described above, the present invention mounts the engine 2 and the transmission case 3 on the fuselage 1, houses the transmission mechanism inside the rear part of the transmission case 3, and has a support frame whose rear part slopes upward. a central planting device 5 and a seedling stand 4 are connected to the support frame, and at least one pair of left and right planting devices 6 and 7 are provided on both sides of the central planting device 5 in the width direction. In the rice transplanter, each of the left and right planting devices 6, 7 includes horizontal frames 13, 13 extending laterally from the transmission case 3, and a vertical frame 14 extending rearward from the tips of the horizontal frames 13, 13. 14, and the connecting portion between the horizontal frames 13, 13 and the vertical frames 14, 14 is connected to the outermost planting device of the left and right planting devices 6, 7. The left and right planting devices 6, 7 are connected and supported to the support frame via support members extending laterally from the support frame so as to substantially match the planting positions by the devices 6, 7. Therefore, the horizontal frame 13 and the vertical frame 1 on the planted seedling side of the portal frame 15 are removed without using a striation marker or a center marker as in the conventional method.
4 and the seedlings located in the outermost row of the already planted seedlings adjacent to the connection region by running the machine in accordance with the planting row spacing. It is possible to plant seedlings by securing an adjacent row spacing that is almost the same as the planting row spacing between the seedling row and the seedling row located inside the seedling to be planted. By reducing the number of parts, the structure can be simplified and the assembly work can be omitted.

Moreover, since the connecting portion of the gate-shaped frame 15 is provided to almost match the planting position of the outermost planting devices 6, 7 among the left and right planting devices 6, 7, the connecting portion is located at a position that is easily visible to the operator, far away from the machine body 1 and away from any obstructions, making it easy to visually inspect and accurately align the rows. Each left and right planting device 6, 7
are connected and supported not only by the portal frame 15 but also via a support member extending laterally from the support frame that constitutes the rigid member of the fuselage 1. and a support member that closes the open side of the portal frame 15, the front and rear intermediate portions can be supported by a rectangular frame supported by a rigid member of the fuselage 1,
This makes it possible to reliably support the left and right planting devices 6 and 7 without increasing the rigidity of the gate-shaped frame 15, and without impairing the support of the left and right planting devices 6 and 7. The connecting portion between the horizontal frame 13 and the vertical frame 14 in the shaped frame 15 can be largely displaced outward from the body 1, and the two effects of reliable support and easy-to-visibly align the rows can be achieved at the same time. .

[Brief explanation of the drawing]

FIG. 1 is a partially omitted plan view of a walking rice transplanter according to the present invention, and FIG. 2 is a partially cutaway side view of the same rice transplanter. 1... Airframe, 2... Engine, 3... Mission case, 4... Seedling stand, 6, 7... Planting device,
13, 13... horizontal frame, 14, 14... vertical frame, 15... portal frame.

Claims (1)

[Scope of utility model registration request] An engine 2 and a transmission case 3 are mounted on the fuselage 1, and a transmission mechanism is installed in the rear part of the transmission case 3, and a support frame whose rear part slopes upward is connected to the support frame. In a walk-behind rice transplanter comprising a device 5 and a seedling stand 4, and at least one pair of left and right planting devices 6, 7 on both sides of the central planting device 5 in the width direction, each of the left and right planting devices 6 , 7, the transmission case 3
A portal frame 1 consisting of horizontal frames 13, 13 extending laterally from the top and vertical frames 14, 14 extending rearward from the tips of the horizontal frames 13, 13.
5 and the horizontal frames 13, 13
and the vertical frames 14, 14 are made to substantially match the planting position of the outermost planting devices 6, 7 among the left and right planting devices 6, 7, and A walk-behind rice transplanter characterized in that the planting devices 6 and 7 are connected and supported to the support frame via a support member extending laterally from the support frame.