JPH0445450Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a groove cutting tool for agricultural machinery, and in detail, it improves the groove cutting performance of the groove cutting tool and prevents clogging of particulates in pipes. There is something about a groove tool for agricultural machinery that has been prevented.

[Prior art]

As this type of conventional technology, Japanese Patent Application Laid-Open No. 57-159407
There are groove tools for agricultural machines as shown in Japanese Patent Publication No. 35-5863.

[The problem that the idea attempts to solve]

However, in the above-mentioned conventional technology, since the connection part with the lower end of the pipe is located far away from the center of rotation of the front part of the groove-making tool, it is difficult to adjust the groove-making depth and make the groove-making tool inoperable. If the groove cutting tool is moved up and down to store the soil in a certain condition, the pipe will be bent or twisted, causing damage to the pipe or clogging the pipe with particulate matter, making it impossible to perform fertilization or seeding properly. I have an assignment.

(Technical means for solving the problem) In order to solve the above-mentioned problem, this invention has been developed by installing a pipe at the lower end of the pipe that guides granular materials such as fertilizer or seed rice that are delivered in fixed amounts by a delivery device from inside the tank. A trenching tool for forming grooves in connected fields, the trenching tool being configured such that the rear part of the trenching tool is vertically movable centering on a position above the field at the front so that the trenching depth can be changed. In addition, the groove cutting tool for an agricultural working machine has a connecting portion to the lower end of the pipe located near the center of rotation of the front part of the groove cutting tool.

(Effects of the invention) Since this invention has the above structure, the connection part with the lower end of the pipe is located near the center of rotation of the front part of the groove-making tool, so the groove-making depth can be adjusted or the groove-making tool can be adjusted. Even if the groove cutting tool is moved up and down due to storage in a non-working state, etc.
Since the pipe 3 has little bending or twisting, damage to the pipe 3 is prevented, and the pipe 3 is less likely to be clogged with particulate matter. In addition, in the case of furrows for fertilizer or seed rice, if the depth of the furrow is not constant, problems such as fertilizer failure and failure of seed germination will occur.
Since the rear part of the groove-making tool is configured to be able to move up and down with the front part centered above the field, good grooves can be made even if the groove-making tool is moved up and down. Coupled with the fact that the connection part with the lower end of the pipe is located near the center of rotation of the front part of the pipe, clogging with fertilizer and paddy seeds is reduced, allowing for good fertilization or sowing operations.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

5 is a walking type 2 with a fertilizer application device, which is a type of agricultural machine.
It is a row rice transplanter, and includes an engine 6 installed at the front of the machine, a traveling transmission case 7 that transmits the power of the engine 6 at variable speeds, and a traveling transmission case 7 that extends rearward from both left and right sides of the traveling transmission case 7. A drive wheel 9 provided at the rear end of the chain case 8, 8,
9, a transmission case 10 fixed to the rear end of the traveling transmission case 7, a planting part case 11 fixed to the rear end of the transmission case 10, and a seedling that is driven by the planting part case 11 to reciprocate from side to side. Mounting stand 12 and seedling mounting stand 1
Seedling planting devices 13 are provided on both left and right sides of the planting section case 11 for dividing seedlings into individual plants from 2 and planting them in the field. A steering handle rod 14, a fertilizing device 15 that applies granular fertilizer into the mud on the side of the seedlings planted in the field by the seedling planting device 13, and a soil leveling float 16 installed on the underside of the machine. It is composed of

The fertilizer application device 15 includes a fertilizer tank 1, a delivery device 2 that delivers a fixed amount of granular fertilizer in the tank 1, a fertilization pipe 3 that guides the granular fertilizer delivered from the delivery device 2, and a lower end of the fertilization pipe 3. A groove cutting tool 4 whose front part is supported by a pivot pin 18 to a support body 17 that is connected and extends from the planting part case 11 so as to be vertically movable, and an adjustment for adjusting the vertical movement of the groove cutting tool 4. It is composed of a device 19.

The trenching tool 4 is formed into a wedge shape by the trenching plates 4a and 4b, and forms a fertilizing trench in the field on the side of the seedlings to be planted by the seedling planting device 13, and is guided downward by the fertilizing pipe 3. It is designed to apply granular fertilizer into muddy soil. And the groove making plate 4a,
The front upper part of 4b is covered by the upper plate 4c,
A fertilizing pipe 3 is connected to a pipe material 4d provided on the upper plate 4c.

The groove plate 4a has its front end pivotally supported by a pin 18 to a support 17 extending from the planting part case 11, and its rear end supported by a pin 22 to the adjustment device 19. And the front end pivot pin 1
Reference numeral 8 is provided near the connecting portion between the lower end of the fertilization pipe 3 and the groove cutting tool 4.

The adjustment device 19 includes a pipe material 24 rotatably supported by the steering handle bars 14, 14 with fasteners 23, 23, and a groove plate formed by the pin 22 extending downward from the pipe material 24. It is composed of a stay 25 that supports the rear end of the pipe 4a, an operating lever 26 extending above the pipe material 24, and a locking guide 27 that locks the operating lever 26 in the operating position.

28 is a covering tool for backfilling the groove formed by the groove cutting tool 4, and is pivotally supported by a pin 30 on a stay 29 extending downward from the pipe material 24.
It is energized by a bullet 31 to press against the mud.

In order to perform fertilization work and rice transplanting work at the same time with the walk-behind two-row rice transplanter with fertilization device configured as described above, if the operating lever 26 is swung in the E-R direction along the guide of the locking guide 27. , the stay 25 also swings in the hone direction, and the groove-making tool 4 is moved up and down around the pivot pin 18, and the depth of the groove formed by the groove-making tool 4 is changed, so that fertilization is possible. Depth is changed. At this time, the groove-cutting tool 4 is moved up and down around the pivot pin 18 provided near the connecting part with the fertilization pipe 3, so the fertilization pipe 3 is not affected by the vertical movement of the groove-cutting tool 4. I don't really get it.

In addition, in the above embodiment, an example was shown in which the groove cutting tool 4 is moved up and down by the fertilization depth adjusting device 19, but
It may be configured such that the groove cutting tool 4 is moved upwardly above the bottom surface of the soil leveling float by operating the operating lever when the aircraft turns in conjunction with an operating lever such as a planting clutch that is operated when the aircraft turns.

Further, in the above embodiment, an example was shown in which the present invention was applied to a groove cutting tool of a fertilization device, but the present invention may be applied to a groove cutting tool of a seeding device other than the fertilization device, for example.

[Brief explanation of the drawing]

Figure 1 is a side view showing an embodiment of the present invention, Figure 2 is a side view showing an embodiment of the present invention;
The figure is an enlarged side view of the main part, and FIG. 3 is an enlarged plan view of the main part. The symbols in the figure are as follows. 1... Fertilizer tank, 2... Feeding device, 3... Fertilizer pipe, 4... Grooving tool.

Claims (1)

[Scope of utility model registration request] In a groove-cutting tool that forms a groove in a field connected to the lower end of a pipe that guides granular materials such as fertilizer or seed rice that are fed out in fixed amounts by a feeding device from inside a tank, the groove-cutting tool is inserted from the field in front of the groove-cutting tool. The rear part is movable up and down centering on the upper position of the grooving tool, so that the groove depth can be changed, and the connecting part with the lower end of the pipe is located near the center of rotation of the front part of the grooving tool. A groove tool for agricultural machinery, which is characterized by: