JPH0126172Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a walk-operated flooded seeding machine float that automatically sows seeds to a certain depth in a flooded field after puddling.

(Prior Art) This type of walk-operated flooded seeding machine has been known.

For example, drive wheels for forward movement of the aircraft are provided,
Two or more floats are arranged in parallel from the side to the rear, a seed feeder connected to a hopper is installed above the wheels, and an engine is installed above the front. .

The engine, wheels, and seed feeder are connected to enable power transmission, and the wheels are driven and the seed feeder operates in conjunction with or independently of the power. The operator uses the extended handle to maneuver the machine by walking between the floats, which are not in the seeding row, and near the center rear of the floats.

As shown in Fig. 1, the above-mentioned float is rectangular in plan view, and has a seeding opening that opens rearward in plan view at its rear end. The seeding tube was to be opened at the same time.

(Problem to be solved by the invention) With conventional floats, in order to avoid the risk of a pedestrian operator hitting his foot on the inside rear end of the float, it is necessary to reduce the float area or make the handle longer. Since the toe must be stretched backwards to ensure sufficient distance between the toes, the former case results in insufficient buoyancy and poor leveling, while the latter case results in reduced maneuverability when turning. .

Therefore, as shown in Japanese Utility Model Application Publication No. 57-203708, only the inner rear end of the float, which is easily touched by the foot of a walking operator, is made shorter than the outer rear end of the float to ensure a sufficient distance between the toes. However, in this case, due to the shortening of the inner rear end of the float, ripples and muddy soil caused by the operator's walk may be caused by the sowing opening, the sowing pipe opening in the same area, the seed dropping position, etc. There was a problem in that seeding performance was adversely affected as the jump-up of the seedlings would spread more quickly.

The present invention is a float structure for a submerged seeding machine designed to prevent the sowing performance from being degraded by the pedestrian operator, even though the inner rear end of the float is formed short to ensure the distance between the toes of the pedestrian operator. is intended to provide.

(Means for Solving the Problem) That is, the present invention provides a concave seeding opening that opens rearward in plan view at the rear of each of the two floats located at the rear from both left and right sides of the drive wheel. In a submerged seeding machine in which the rear end of the float on the inside of each seeding opening is formed shorter than the rear end on the outside of the float, the seeding tube extending from the seed feeder is connected to the seeding opening. It is characterized by having a float structure in which the front part of the part is inserted into the opening and the rear part around the insertion part is covered with a muddy water intrusion prevention plate.

(Functions and Effects of the Invention) Therefore, in the case of a submerged seeding machine to which the float of the present invention is applied, the ground contact area of the float can hardly be narrowed, and the handle can be largely extended rearward. The seeding tube is opened at the front of the seeding opening, that is, at the back of the opening, and the back part is covered with a board to prevent muddy water from entering. As a result, the degree of influence from mud splashing up and waves caused by the operator's walking is significantly reduced, and good seeding can be carried out.

(Embodiments) Specific embodiments of this invention will be described below with reference to the drawings.

FIG. 2 is a side view of the submerged seeding machine according to this invention, and FIG. 3 is a schematic plan view of the vicinity of the float, which is the main part thereof.

Looking at the outline of this seeding machine, two floats F and F are arranged rearward from both sides around a drive wheel 1 for moving the machine body, and a seed feeder 7 is arranged above the wheel 1. Hoppers 8, 8 for storing seeds are connected and connected to the upper part thereof.

An engine E is provided above the front of the wheel 1, and the engine E, the wheel 1, and the seed feeder 7 are drive-coupled to operate in conjunction with each other within the transmission cases 9 and 9'. A clutch is provided in part (not shown).

Now, regarding the float F, a mud prevention plate 10 is attached to the front upper part thereof to prevent mud from entering onto the float F.

At the rear thereof, a support rod 12 is attached to a mounting bracket 11 protruding from the upper part near the center, and two floats F, F are connected to each other.

The center part of this support rod 12 is rotatably connected to one end of the parallel link 13, the other end of the parallel link 13 is rotatably attached to the fuselage, and the floats F, F are movable up and down (rotatable). possible).

A sowing opening 2 is formed at the rear of the float F and opens rearward, and a sowing tube 14 through which seeds pass is fitted and fixed to the float F at the front of this sowing opening 2. and the seed feeding machine 7 are communicated with each other through a flexible pipe 15.

In order to prevent the soil clods blown away by a worker walking from the rear of the machine from entering the middle and lower part of the sowing pipe 14 and reducing the depth of sowing, the middle and lower part of the sowing pipe 14 should be accessed from the rear and above. A covering mud intrusion prevention plate 16 is provided, and a viewing window 17 is formed in the upper part of the plate so that the state in which seeds have fallen into the field near the lower end of the seeding tube 14 can be confirmed.

The inner rear end 3 which is the inside part of the seeding opening 2 at the rear of the float F is connected to the outer rear end 4 on the outside thereof.
It has a shortened shape compared to .

The inner side surface 5 of the float F is the wheel 1
It starts near the rear end and gradually opens outward toward the front.

Further, the body inner side surface 5' of the inner rear end portion 3 of the float F is also shaped to open slightly outward toward the rear.

Note that a marker support rod 18 is rotatably extended from both ends of the support rod 12 that connects the two floats F, F to each other, and a marker support rod 18 is provided with a chain or the like at the outer end of the marker support rod 18 for use in running in a flooded field. A marker (not shown) for marking is attached.

This marker support rod 18 is rotated by a regulating rod 19 in a range between horizontal and vertical, but can be stopped at any position within that range by a spring 20 at the end of the regulating rod 19.

Further, a control handle 21 is provided at the rear upper part of the machine body, and levers (not shown) such as a traveling clutch, a seed feeder operating clutch, and a throttle are attached to the control handle 21.

The operation will be explained based on the above configuration.

When the levers of the traveling clutch and the seed feeder operating clutch are operated simultaneously or at intervals, the seeds are fed to the hoppers 8, 8, 8 and 8 at a constant rate as the machine travels.
The seeds pass through the seed feeder 7, the flexible pipes 15, 15, and the seeding tubes 14, 14 and fall, so that two rows of seeds are automatically sown.

In a flooded field, the wheel 1 moves up and down on the lower end of the cultivated soil, which is not constant, but since the float F is able to swing up and down (rotatable), the float F resists the buoyancy and sinks a predetermined amount due to its own weight.

Due to this sinking of the float F, the lower surface of the float F is lowered by a predetermined amount than other areas of the flooded field, and the seeds are dropped from the seeding pipe 14 there.

After passing through the float F, the soil returns to the top of the seeds, which are lower than others due to its fluidity, and is covered with soil.

At this time, the outward opening of the front part of the inner side surface 5 of the fuselage F prevents the soil mass attached to the wheels from falling onto the float F, and at the same time, the soil at the front of the float F is smoothly moved to the center of the fuselage. It also serves as a contribution to the department.

Similarly, the outward opening of the inner rear end 3 of the float F on the inner side surface 5 of the fuselage causes the soil that has been moved towards the center of the fuselage by the float F to gradually and smoothly form the sowing row at the rear of the sowing opening 2. It supports the natural flow of water.

During the work, the worker grasps the handle 21 from behind and maneuvers while walking, but is careful not to step on the sowing rows.
You will be walking around the center of the two floats F, that is, on the center line of the aircraft.At this time, the inside rear end 3 of float F is shortened and the walking space is large, making it easier to walk. It's summery.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view of a float portion of a conventional submerged seeding machine, FIG. 2 is a side view of a submerged seeding machine according to this invention, and FIG. 3 is a schematic plan view thereof. Code, 1...wheel, 2...seeding opening, 3...
Inner rear end portion, 4... Outer rear end portion, 5... Inner side surface of float body, 7... Seed feeder, 8... Hopper, 11... Seeding pipe, 16... Mud intrusion prevention plate,
21...handle, E...engine, F...float.

Claims (1)

[Scope of utility model registration request] Concave seeding openings 2, 2 that open rearward in plan view are formed at the rear of each of the two floats F, F, which are located on the rear side from both left and right sides of the drive wheel 1. In a submerged seeding machine, the rear end of the float on the inside of the parts 2, 2 is shorter than the rear end of the float on the outside of the sowing opening, and the seeding tube 1 extends from the seed feeder 7.
4, 14 are inserted into the front parts of the seeding openings 2, 2 to open them, and the rear part around the insertion part is covered with a muddy water intrusion prevention plate 16. float.