JPS6314591Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a mounting device for a soil leveling float in a rice transplanter.

[Prior art] A conventionally known rice transplanter is equipped with a plurality of floats on the lower side of the rice transplanter attached to the rear of the traveling vehicle body.
There is a system in which a planting tool for planting seedlings is disposed on both left and right sides of the rear of the float, so that an even number of rows, such as 6 or 8 rows, can be planted.

[Problems to be solved by the invention] However, in recent years, as rice transplanters with an odd number of rows, for example, five rows, have been requested, the relationship between the arrangement of the multiple floats and the seedling planting tool, especially the structure of the floats, has increased. There were also problems with the means of support.

[Means for solving the problem] Therefore, the present invention provides at least one of the plurality of soil leveling floats provided under the rice transplanting device,
The left and right center portions of the rear side are cut out by a predetermined width in the front and left and right to form a single-row planting groove in which seedlings are planted, and the soil leveling float that forms this single-row planting groove is attached. The upper and lower parts of the float can be adjusted by pivoting the seedling planting tool through a metal fitting at a position near the planting position via an arm provided across the groove from a shaft whose rotation is adjusted by an adjustment lever. A rice transplanter that allows adjustments to be made smoothly without placing an unbalanced load on the float arm, and also allows the seedling planting depth to remain constant as the float moves up and down close to the seedling planting position. This is what we are trying to provide.

[Example] Hereinafter, an example of the present invention will be specifically described with reference to the drawings.

In Figures 1 and 2, numeral 1 indicates passenger 4.
It is a wheel-type traveling body, and at the rear of this traveling body,
A rice transplanting device 3 is attached via a lift mechanism 2 so as to be movable up and down. The rice transplanting device 3 includes a frame body 4 that is elongated in the left-right direction and also serves as a transmission case, and three side frames 5, 6, and 7 extending rearward from the frame body.

A seedling tank 8 is supported by the frame body 4 so as to be tilted forward and to be movable back and forth in the left and right direction. Further, a support shaft 9 having approximately the same length as the frame body 4 is pivotally supported along the length direction of the frame body 4 at the lower side of the base end of each of the side frames 5, 5, and 7. One ends of four arms 10 are fixed to the shaft 9 at approximately equal intervals. Three floats 11, 12, 13 are pivotally attached to the other ends of the four arms 10 via pins 14. The arms 10 have floats 11 and 13 attached to the left and right ends thereof, and a float 12 attached to the two middle arms, respectively.
It is arranged on the support shaft 9 so as to be located laterally to the side frames 5, 6, 7 without overlapping vertically, and therefore, the arm 10 and each float 11, 1
The pivot positions (fulcrums) of 2 and 13 are also arranged so that they do not overlap vertically with the side frames 5, 6, and 7.
The tips of the side frames 5, 6, and 7 are bent into a planar L shape, and two seedling planting tools 15 are attached to each of the two on both sides 5 and 6, and a float 1 is attached to the center one.
One seedling planting tool 15 is attached to the rear left and right center part of the seedling tank 8, which corresponds to a part where a predetermined width is removed from the left and right sides to the front, that is, a row of planting grooves.
Seedling tank 8
1. Remove the pine-shaped seedlings placed on top from the seedling outlet.
The plants are taken out one by one and planted in the fields.

The floats 11, 12, 13 are provided with a support height adjustment device 16. This adjustment device 1
6 is an operating arm 17 having one end fixed to the support shaft 9 and a shift lever 18 fixed to the other end;
It consists of a shift plate 19 that is attached to the side of the side frame 6 where the seedling planting tool 15 is not attached, and that moves and locks the shift lever 18 up and down. By moving and locking the float 1
The support heights of 1, 12, and 13 are adjusted simultaneously.

In another embodiment of the present invention shown in FIG. 3, the tip of the side frame 6 is shaped like a plane T, and seedling planting tools 15 are provided on both sides of the side frame 6, and one seedling planting tool 15 is provided on the side frame 7. This embodiment is the same as the embodiment shown in FIG. 1, except that a shift plate 19 and a shift lever 18 are provided on the side of the side frame 7 opposite to the seedling planting fixture 15.

In the rice transplanter having such a configuration, the rice transplanting device 3 slides on the rice field while being towed and driven by the traveling vehicle body 1 to perform rice planting work on five rows at a time. During this rice planting work, it is necessary to adjust the planting depth of the seedlings to be planted using the seedling planting tool 15 depending on the size of the seedlings, the hardness and softness of the rice field, etc.
This adjustment is carried out by means of a support height adjustment device 16. First, when the shift lever 18 is moved along the shift plate 19, the support shaft 9 rotates via the operating arm 17. For example, in FIG. 2, when the shift lever 18 is lowered, the support shaft 9 rotates clockwise, and in conjunction with this, the connecting arm 10 also rotates in the same direction, simultaneously pushing down the floats 11, 12, and 13 around the pin 14, and separating them from the side frames 5, 6, and 7. Therefore, the planting depth of the seedlings becomes shallower. Conversely, when the shift lever 18 is raised upward, the support shaft 9 rotates counterclockwise, the float is raised upward and approaches the side frame, and the planting depth of the seedlings becomes deeper. When the floats 11, 12, 13 move up and down, in the embodiment, the connection arm 10 and the connection position between the connection arm 10 and the pin 14, that is, the fulcrum of the float, are located on the sides of the side frames 5, 6, 7. Because the side frame does not interfere with the vertical movement of the float, the range of vertical movement can be widened.
The planting depth of seedlings can be adjusted over a wider range. Moreover, since the float 12 is supported by a pair of connecting arms 10, 10 with a row of planting grooves in between,
The vertical movement is performed stably. Furthermore, the shift lever 18 and shift plate 19 of the support height adjustment device 16, that is, the operating mechanism, are moved to the side frame 6.
Alternatively, since it is provided in the unused side space of the rice transplanting device 7 and protrudes to the rear of the rice transplanting device 3, there is no need to provide a separate installation location for the operating mechanism, and operation is easy.

[Effects of the invention] As explained above, according to the mounting device for the soil leveling float in the rice transplanter of the present invention, when adjusting the vertical movement of the float, no unbalanced load is applied to the arm rotated by the adjustment lever, so that the axis can be adjusted. Rotation is smoother, and since the soil leveling float is supported on both the left and right sides near the seedling planting position, the seedling planting depth does not change and becomes uniform. Eliminating left-right tilting eliminates variations in planting depth.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the entire rice transplanter showing an embodiment of the present invention, FIG. 2 is a side view of the main parts, and FIG. 3 is a plan view of the main parts showing another embodiment of the invention. 1... Traveling vehicle body, 2... Lift mechanism, 3... Rice transplanting device, 4... Frame body, 5, 6, 7... Side frame, 8... Seedling tank, 9... Support shaft,
10... Connection arm, 11, 12, 13... Float, 15... Seedling planting tool, 16... Support height adjustment device, 17... Operating arm, 18... Shift lever, 19... Shift plate.

Claims (1)

[Scope of utility model registration request] At least one of the plurality of soil leveling floats provided on the lower side of the rice transplanting device is cut out at the left and right center portions of the rear side by a predetermined width in the forward and left and right directions, and a row of planting grooves are formed in which seedlings are planted. When installing the soil leveling float that forms this single-row planting groove, the seedling planting tool is attached via an arm provided across the groove from a shaft whose rotation is adjusted by an adjustment lever. A mounting device for a soil leveling float in a rice transplanter that is pivotally attached via a metal fitting near the planting position.