JPS595246B2 - Seeding method and seeding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a new method and method for sowing seeds such as vegetables in a field, in which the seeds are covered with soil after forming a seed hole and visually confirming that the seeds have been reliably sown. Regarding the seeding machine used to carry out this method.

In conventional seeding machines that have been proposed, even if seeds are placed in the seeding hole, the seed is covered with soil without the operator being able to visually confirm whether the seed was placed in the wrong hole or not.

On the other hand, in a mulch film cultivation method in which a field is covered with a film in which a large number of holes for seeding are provided at regular intervals, the diameter of the holes is 3 to 4 crrI.

It is small and efficient depending on the location of this hole (it is difficult to form a seeding hole in a field.

In addition, a herbicide is applied to the lower surface of the mulch film, and the weeding wounds are dissolved in water droplets that are deposited on the lower surface of the film and impregnated into the field to a certain depth.

Therefore, unless seeding holes with a depth equal to or greater than the herbicide impregnation depth are repeatedly and stably formed, there is a risk that the germination of vegetable seeds will be impaired by the herbicide.

Therefore, the first object of the present invention is to form a seeding hole,
To provide a sowing method that covers soil in a manner suitable for the seeds after confirming that the sowing work has been performed reliably.

A first invention for achieving this object is arranged such that the operating rod is movable up and down in the lower stroke of the operating rod,
After forming a seeding hole with the punch attached to the punch operating lever, which is moved downward by engagement with the operating lever via a clutch member disposed on the operating lever, the punch is moved down by engagement with the operating lever via the clutch member. The punch operating rod is returned to its original position by disengaging from the operating rod, and the sowing operation is completed by the downward movement of the operating rod in the i layer. The gist of this invention is to cover the seed hole by breaking down the soil from the periphery of the seeding hole toward the center of the hole by operating it with an operating rod.

Next, the object of the second invention is to provide a seeding machine for carrying out the above-mentioned seeding method.

A second invention to achieve this object includes a casing with a built-in hopper for storing seeds, a punch that is supported by the casing in a vertically movable manner and has a punch for forming a seeding hole at the lower end and an elastic member for return. an operating rod, an operating rod that is vertically movably supported by the casing, has a clutch member rotatably attached thereto for moving the punch operating rod downward, and has a seed feeding piece fixed thereon, and a soil cover provided at the lower end portion. The gist is that the member has a soil covering mechanism that is operated reciprocally between the periphery and the center of the seeding hole by the operating rod.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS. 1 to 5.

The seeding machine 1 shown in FIG. 1 has a vertically long box-like guide portion 4 formed inside a vertically long box-like casing 2 in order to guide the operating rod 3 in the vertical direction.

A sealing member 4a is disposed near the middle of the guide portion 4 between it and the operating rod 3.

A hopper 5 for continuously supplying seeds of vegetables and the like is provided behind the guide portion 4 (on the left side in FIG. 1).

The bottom wall portion 5a of this hopper 5 is formed in a slope shape.

At a position where the bottom wall portion 5a is coupled to the guide portion 4, a stopper 4b is provided protruding from the front surface of the guide portion 4.

As shown in detail in FIGS. 4 and 5, a substantially L-shaped handle portion 6 for vertically moving the operating rod 3 is attached to the upper end portion of the operating rod 3. As shown in FIGS.

As shown in FIG. 1, a lever-shaped clutch member 8 is rotatably disposed in the middle of the operating rod 3 by means of a pivot shaft 10 in order to operate the punch operating rod 7. It is integrally linked to vertical movement operations.

A trapezoidal claw portion 9 is formed at the tip of the clutch member 8 .

On the distal end side (right end side in FIG. 1) of the claw portion 9, there is a first groove having a large taper angle with respect to the lower end surface 8a of the clutch member 8.
A tapered portion 11 and a second tapered portion 12 having a relatively smaller taper angle than the first tapered portion 11 are formed.

A stopper portion 13 is formed at the upper end of the claw portion 9 so as to protrude toward the front surface 3a of the operating rod 3.

The rear end portion 13a of this stopper portion 13 (the left end side in FIGS. 1 and 3) comes into contact with the front surface of the operating rod 3, and the clutch member 8 is held perpendicular to the operating rod 3 by its own weight. At the same time, the clutch member 80 is prevented from rotating counterclockwise.

As shown in FIG. 3, the operating rod 3 is a long rod with a C-shaped cross section and an open side (lower side in FIG. 3), into which the threaded portion of the pivot shaft 10 is screwed. A bearing member 41 for this purpose is fixed inside the operating rod 3 by a caulking bolt 41a.

A collar 14.15 is superimposed on this bearing member 41,
These 14 and 15 are fitted into the rotation support shaft 10.

The collar 14 reciprocates in the vertical direction within the guide slot 16 opened in the vertical direction of the guide portion 4, and the upper edge of the guide slot 16 of the collar 14 prevents the operating rod 3 from being pulled out upward. It is achieved by combining.

Note that the operation rod 3 is prevented from being pulled out downward by the contact between the claw portion 9 of the clutch member 8 and the stopper 4b and the contact between the clutch member 8 and the pin 47 provided under the bottom wall portion 5a of the hopper 5. This is done through the cooperation of the two.

At a lower position of the bearing member 41, a seed feeding piece 17 is provided.
are arranged so that they can be exchanged freely.

This feeding piece 17 is desirably made of a lightweight material that can prevent charging, such as Duracon (registered trademark).

The lower end of the seed feeding piece 17 is supported by a piece 18, which is fixed by a bush 19 fixed to the operating rod 3 and a set screw 20 screwed into this bush 19. .

Therefore, the seed dispensing piece 17 can be freely replaced when it is necessary to change the size of vegetable seeds or the amount of sowing.

A seed picking hole 21 is formed in the seed feeding piece 1.7 in a diagonal direction toward the hopper 5.
An adjustment screw 22 for adjusting the amount of seeds picked up is screwed onto the side facing the hopper 5.

Since the seed picking hole 21 has a tapered shape with the opening 21a at the lowest position, a certain amount of seeds in the hopper 5 can be picked up by the downward movement of the operating rod 3, and the seeds are thrown into the sowing hole. In this case, the seeds slide down along the slope of the seed picking hole 21.

The depth of the seed picking hole 21 changes depending on the amount by which the tip of the adjusting screw 22 advances into the seed picking hole 21, thereby adjusting the amount of seeds picked up.

As seen in FIG. 1, this adjustment screw 22 protrudes to the side of the casing 2 (toward the right hand side for the operator) and can be easily adjusted during seeding work.

A soil-covering hook 32 is bent and formed at the lower end of the piece 18 of the piece holder, facing the rear inner wall of the operating rod 3.

At the bottom of the hopper, there is a brush 23 as shown in FIG.
is installed.

This brush 23 is held by a brush holding piece 23a, and the brush holding piece 23a is attached to a brush mounting position adjusting portion 23 formed to protrude laterally (upward in FIG. 3) from the casing 2.
By being attached to b via butterfly bolt 23C,
Movement in the left and right direction (up and down in FIG. 3) is possible.

This makes it possible to correct even when the brush 23 is worn out.

When the opening 21a of the seed picking hole 21 provided in the seed feeding piece 17 is exposed below the brush 23 as the operating rod 3 moves downward, the seeds filled in the seed picking hole 21 are removed from the hole. The seeds are placed in seed holes formed in the field along the slope of the wall.

On the front of the casing 2 are two upper and lower support brackets) 24.
．． The punch operating rod 7 is supported by 25 so as to be vertically movable.

A rubber-like bumper 26 is provided at the lower end of the punch operating rod 7.
A seeding hole depth adjusting screw portion 27 is welded through the seeding hole depth adjusting screw portion 27, and a punch 29 is hinged to this seeding hole depth adjusting screw portion 27 through a wing nut 28.

The depth of the seeding hole to be formed is adjusted by the position of the punch 29 relative to the seeding hole depth adjusting screw portion 27.

In the state shown in FIG. 1, a locking piece 30 with an inverted longitudinal section is attached to the punch operating rod 7 at approximately the same position as the seed feeding piece 17.
is fixed.

This locking piece 30 is attached to the claw portion 9 during the downward movement process of the operating rod 3.
It engages with the lower end surface 8a of and is pushed down by the claw portion 9 up to a certain stroke.

During this time, the punch 29 moves downward to form seeding holes of a constant depth in the field.

A bushing 31 is projectingly provided inside the support bracket 25, and this bushing 31 abuts against the bumper 26, and the punch 29
Determine the upper limit of movement.

A compression coil spring 34 is disposed between the bush 31 and the locking piece 30 as a resilient member.

The restoring force of this compression coil spring 34 is
After forming the seeding hole, the punch operating rod T is returned to the initial position in preparation for the next seeding hole forming operation.

A soil covering mechanism 35 is provided at the bottom of the casing 2.

This soil covering mechanism 35 includes a soil covering operation cam 36, a link 37,
38 and a rectangular soil covering ring 49 fixed to the tip of the link 38 are the main components.

The soil covering operation cam 36 and the link 37 are rotatably connected to each other by a pivot pin 40, and the soil covering operation cam 3
A torsion coil spring 33 is disposed between the link 37 and the torsion coil spring 6 .

By this torsion coil spring 33, the soil covering operation cam 36 is elastically biased counterclockwise with respect to the link 37, and the rear end upper side 36a of the soil covering operation cam 36 is pressed against the link 37.
The torsion coil spring 33 comes into contact with the upper end side tip 37a of 7.
The motor is placed at rest with a torque applied to it.

A play portion 39 is formed on the front side of the soil covering operation cam 36, on which the lower end 32a of the soil covering hook 32 provided at the lower end of the operating rod 3 slides while coming into contact with it during the downward stroke of the operating rod 3. .

In the upward stroke of the operating rod 3, the soil-covering operation cam 36 is twisted while engaging the upper end portion 32b of the soil-covering hook 32, and the coil spring 33 is positioned further below the play portion 39.
A locking portion 46 is provided that rotates counterclockwise against the force.

An intermediate portion of the link 37 is swingably supported by a support shaft 45 fixed to the casing 2 .

The link 38 is connected to the rear end 37b of the link 37 via a pivot pin 50 (not fixed to the casing 2).
The rear end portions 38b of the two are connected to each other.

The rear end portion 38b of this link 38 is resiliently biased upward by a tension spring 42 whose one end is fixed to the casing 2.

A long hole 43 is formed in the middle of the link 38 along the longitudinal direction of the link 38.

A guide pin 44 fixed to the casing 2 is engaged with the elongated hole 43.

The link 38 is regulated by the counterclockwise rotation of the guide pin 44 and the link 37, and extends from the periphery of the seeding hole toward the center in a posture that scoops soil from diagonally above the seeding hole. It is extruded like this.

A mode of sowing using the seeding machine 1 described in detail above will be explained.

First, grasp the handle part 6 and press the bottom part 2a of the casing 2.
is placed on a field, the seeding machine 1 is stabilized, and the operating rod 3 is lowered using the handle portion 6. During this lowering process, the lower end surface 8a of the clutch member 8 on the tip side is first attached to the punch operating rod 7. It comes into contact with the upper surface side of the locking piece 30 that has been closed.

Furthermore, when the operating rod 3 is lowered, the punch operating rod 7 is moved by the compression coil spring 3 due to the engagement between the lower end surface 8a and the locking piece 30.
It is lowered against 4.

During this lowering process, the lower end surface 8a on the rear end side of the clutch member 8 comes into contact with the pin 47, and in the next lowering process of the operating rod 3, the clutch member 8 does not slide relative to the pin 47 but rotates around the pivot shaft 10. Rotate clockwise around the center.

During this time, the punch 29 is inserted into the field to form a seeding hole.

At the end of this rotation, the lower end surface 8a of the claw portion 9 is released from the locking piece 30.

As a result, the depth of the seeding hole is always constant regardless of the amount of downward movement of the operating rod 3, and the punch 29 is driven by the compression coil spring 3.
The restoring force accumulated in the punch lever 4 returns it to the initial position together with the punch operating rod 7.

Since this punch operating rod 7 bounces back to the front position of the operating rod 3 (on the right side in Figure 1), the operator can easily see that its upper end 7a is flying up (thereby forming a seeding hole). It is visually confirmed that the work has been completed.

From the time when the operating rod 3 begins to be lowered, the hopper 5 continues to flow until the seed picking hole 21 is completely filled.
The seeds inside are picked up in quantity.

After the punch 29 returns to the initial position, when the operating rod 3 is further lowered, seeds are thrown into the sowing hole from the opening 21a of the seed picking hole 21 immediately after passing the brush 23.

During this time, the soil covering operation cam 36 protrudes into the opening 48 formed at the lower end of the operating rod 3 and the opening 48a formed at the lower end of the guide section 4.

When the operator visually confirms that the vegetable seeds have been placed in the seeding hole, the operating rod 3 is pulled up while the casing 2 remains in the field.

During this lifting process, the upper end 32b of the soil-covering hook 32 engages with the soil-covering operation cam 36 at the locking portion 46, and rotates the soil-covering operation cam 36 counterclockwise against the torsion coil spring 33. This causes the link 37 to also rotate counterclockwise.

The link 38 is pushed diagonally downward against the spring force of the tension spring 42, and the soil covering ring 49 hits the periphery of the seeding hole and covers the sown vegetable seeds with soil.

When the operating rod 3 is further pulled up, the soil covering operation cam 36 is disengaged from the upper end portion 32b of the soil covering hook 32 and returned to the initial position by the tension spring 42.

During this time, by raising the operating rod 3, the seed feeding piece 1
7 passes over the brush 23 and returns into the hopper 5 again.

On the other hand, the clutch member 8 comes into contact with the lower surface of the locking piece 30, and is separated from the locking piece 30 by a constant rise of the operating rod 3 while being rotated clockwise.

As described above, according to the present invention, the sowing hole forming process and its completion can be visually confirmed, and it can also be visually confirmed whether the vegetable seeds have been sown, giving a sense of security to the operator.

Moreover, after the sowing is completed, the soil covering process is performed, and the sown seeds are completely covered with soil without digging up the sown seeds.

[Brief explanation of the drawing]

FIG. 1 is a side vertical sectional view of a new seeding machine for carrying out the seeding method according to the present invention, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG. 3 is a B-- B-line sectional view, 4th
The figure is a side view of the operating rod, and FIG. 5 is a sectional view taken along the line CC in FIG. 4. 1... Seeding machine, 2... Casing, Meter... Operating rod, 5... Hopper, 7...
...Punch operating rod, 8...Clutch member, 10
... Rotating shaft, 17 ... Seed feeding piece, 29 ... Punch, 34 ... Compression coil spring, 35 ... Soil covering Mechanism, 49...
...Ring for covering soil.

Claims (1)

[Scope of Claims] 1. In the downward movement stroke of the operating rod, the lowering force is lowered by engagement with the operating rod via a clutch member disposed along the operating rod so as to be vertically movable. After forming a seeding hole with the punch attached to the punch operating rod that is being moved, the punch operating rod is returned to its original position by disengaging the operating rod from the punch operating rod via the clutch member, and then the operating rod is While the sowing work is completed by the downward movement of the operating lever, the soil covering member is operated by the operating lever during the upward movement of the operating lever to return to its original position, and the soil is pushed down from the periphery of the seeding hole toward the center of the seeding hole. A sowing method that involves covering the soil with soil. 2. A casing with a built-in hopper for storing seeds, a punch operating rod that is supported by the casing so as to be movable up and down and is equipped with a punch for forming a seeding hole at the lower end and has an elastic member for return, and a punch operating rod that is movable up and down in the casing. A clutch member for moving the punch operating rod downward is rotatably attached to the operating rod, and a seed feeding piece is fixed to the operating rod, and a soil covering member provided at the lower end portion is attached to the operating rod to move the punch operating rod downward. A seeding machine having a soil covering mechanism that operates reciprocally between the center and the center.