JPH0455462Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention has a single propulsion wheel that can swing up and down in the center of the fuselage, and a transmission case in the front of the fuselage and a planting part in the rear of the fuselage. The present invention relates to a single-wheel walking type rice transplanter which is connected by a pair of left and right front and rear peeling body frames.

[Conventional technology]

Generally, when attaching a fertilization device, which is in increasing demand, to a rice transplanter that has matured as a machine and whose structure has solidified to some extent, it is necessary to install a fertilization device, which is in increasing demand, because the fertilization device is equipped with a relatively heavy fertilizer supply hopper, etc. However, depending on the location of the addition, there was a risk that the weight balance of the rice transplanter would be significantly disrupted, which was a problem.

[Problem that the invention attempts to solve]

Therefore, we set the mounting position so that the weight balance is not affected as much as possible, but since the propulsion wheels are configured to swing up and down relative to the aircraft body, it becomes even more difficult to arrange the fertilizer application device to accommodate balance adjustment. was.

The purpose of this invention is to take into consideration the movement of the propulsion wheels that swing up and down, and to create a rational mounting structure for the fertilization device that minimizes the loss of balance of the machine and makes effective use of other components. The point is to provide something.

[Means for solving problems]

The characteristic structure of the present invention is that the feeding case for fertilization is located above near the axis of the propulsion wheel, the feeding case is supported by the vehicle body frame, and the feeding shaft from the feeding case is placed at the rear of the machine body. an arch-shaped frame that connects the rear parts of the left-right and front-rear vehicle body frames; and a bearing part that supports the rear part of the feed-out shaft in the arch-shaped frame; The functions and effects are as follows.

[Effect]

○B From the characteristic configuration, by arranging the feeding case (fertilizer feeding hopper) near the axis of the propulsion wheel, which is the fulcrum of the aircraft balance, even if this feeding case is additionally configured, the weight balance in the front and rear direction can be maintained. There is little collapse.

○B Furthermore, by arranging the feeding case near the axis of the propulsion wheel, the feeding case is set at a position where it will not be too far away from the body balance fulcrum even when the propulsion wheel swings up and down. Therefore, it is possible to suppress the collapse of the longitudinal balance of the aircraft due to the vertical rocking of the propulsion wheels. Moreover, since the feeding case is supported by the left and right body frames due to the characteristic structure, it is possible to suppress the collapse of the left-right balance of the aircraft even though the feeding case is added.

○C Characteristic structure, From the drive unit for the feeding shaft [in this embodiment, the seedling planting mechanism 4 of the seedling planting unit of the planting unit is used as the drive unit, but a dedicated swing motor is used as the drive unit, The feed-out shaft 19 may be operated in forward and reverse directions in synchronization with the operation of the seedling planting mechanism 4.] is provided at the rear of the machine, so that the feed-out shaft 19 can be rotated rearward from the feed-out case supported by the left and right vehicle body frames. In order to pivotally support the tip of the feeding shaft extended toward the target, the frame provided to strengthen the left and right vehicle body frames is raised in an arch shape, and the arch-shaped frame is positioned immediately behind this feeding case. By supporting the feeding shaft, there is no need to newly provide a dedicated frame to support the feeding shaft.

[Effect of idea]

Effects ○A and ○B prevent the machine from becoming unbalanced even when additional facility equipment is installed, reducing the burden on the operator to maintain balance using the control handle, and reducing the burden on the operator while using a single-wheeled type. Even though it is a walking type that requires a heavy burden, we have now been able to provide one that requires less operating burden for the worker. In addition, the function ○C can be simplified by using the frame for both purposes, and the complexity of the structure due to the addition of a fertilization device can be further reduced.

〔Example〕

A one-wheel walkable rice transplanter as a paddy field work machine will be explained. As shown in Figure 3, the single-wheel walking rice transplanter is
An engine 1 and a transmission case 2 are provided at the front, and left and right transmission cases, which also serve as transmission cases, extend rearward from both sides of the transmission case 2, passing through the sides of the propulsion wheels 7, and opening left and right toward the rear. Side frames (vehicle body frames) 3, 3, left and right planting transmission cases 5, 5, which are equipped with a seedling planting mechanism 4 at the rear ends of the left and right side frames 3, 3, and a planter connected to the left planting transmission case 5. A planting section 25 is equipped with a seedling stand 6 that is supported by a case 24 and can be slid laterally, and a single propulsion wheel 7 is pivotally supported on one side of the tip of the planting part 25, which is supported by a case 24 that is movable up and down. The wheel transmission case 8 is pivotally supported by the wheel transmission case 8, the side floats 9, 9 are located on both sides of the wheel transmission case 8 and serve as ground floats that can swing up and down around the rear fulcrum The plant is equipped with an elevating cylinder 10 for vertically swinging the propulsion wheel 7 in order to maintain a constant ground posture of the planting mechanism 4, a bonnet 12 with a preliminary seedling stand 11 provided above, and a fertilizing device 13. .

The fertilizer application device 13 includes fertilizer storage hoppers 14 located on both sides of the bonnet 12, a feeding case 15 containing a feeding mechanism (not shown), and a downward pipe 1 for supplying fertilizers below the feeding case 15.
6, and a groove cutter 17 and a groove cutting plate 18. The feeding cases 15, 15 are respectively located above the side frames 3, 3 in the vicinity of the axis Y of the propulsion wheel 7, and are located above the side frames 3, 3.
It is supported by the horizontal portion of the bent upper end of a single support frame 26 erected from above. As shown in FIG. 1, the storage hopper 14 is provided with a swinging fulcrum on its lateral outer surface and an upper horizontally opening type lid 14A with an opening end located inside the body, and the storage hopper 14 is provided with an upper side opening type lid 14A with an opening end located on the inside of the body. In contrast, the lid 14A is placed close to the lid 14A.

As shown in FIGS. 1 to 3, a bag dispensing shaft 19 extends rearward from the dispensing case 15, and the rear ends of this bag dispensing shaft 19 touch the rear portions of the left and right side frames 3, 3. Pipe-shaped bearing portion 21 provided on the arch-shaped frame 20 to be connected
is supported by.

Further, a rotation transmission member 22 is integrally fixed to the bag dispensing shaft 19, and is connected to a swinging fulcrum of the seedling planting mechanism 4 and a connecting link 23 in a vertical position, so that the bag dispensing shaft 19 is oscillated in forward and reverse directions. It is configured as follows.

Incidentally, although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of drawings]

The drawings show an embodiment of the single-wheel walking type rice transplanter according to the present invention, in which FIG. 1 is a rear view showing a planting section and a fertilizing device, FIG. 2 is an overall plan view, and FIG. 3 is an overall side view. 2...Mission case, 3...Vehicle frame, 7...Propulsion wheel, 15...Feeding case, 1
9... Feeding shaft, 20... Arch-shaped frame, 2
5...Planting section.

Claims (1)

[Scope of utility model registration request] A single propulsion wheel 7 that can swing up and down is arranged in the center of the fuselage, and the transmission case 2 at the front of the fuselage and the planting section 25 at the rear of the fuselage are connected by a pair of left and right front and rear body frames 3, 3. This is a connected one-wheel walking type rice transplanter, in which a fertilizing feed-out case 15 located above near the axis of the propulsion wheel 7 is supported by the body frame 3, and a feed-out shaft 19 is connected from the feed-out case 15. An arch-shaped frame 2 that extends toward the rear of the aircraft body and connects the rear parts of the left, right, front and rear body frames 3, 3.
0, a bearing part 2 that supports the rear part of the feeding shaft 19
A single-wheel walking rice transplanter equipped with 1.