JPS5853933Y2 - Seed agitation device in seeding machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for stirring seeds stored in a hopper in a seeding machine for sowing seeds of vegetables, grains, etc. in fields.

Generally, if the grain size of the seeds stored in the hopper is large, the seeds compete with each other, or if the seeds are moist, they aggregate and build a wall near the seed picking hole. As a result, seeds were not picked up by the seed picking holes, making it impossible to sow.

The purpose of the present invention is to provide a seed agitation device for a seed sowing machine that allows seeds to build up (break down the wall) in a hopper to perform stable sowing.

To achieve this purpose, the present invention consists of a casing with a built-in hopper for storing seeds, a punch that is moved up and down with respect to the casing to form a seeding hole, and an operation that moves this punch up and down. and a seed handling member that picks up seeds in a hopper into a seed hole in response to the movement of the operating member and sows the seeds in a seed hole formed by a punch. The present invention is characterized in that a seed stirring member is provided near the hole to stir the seeds in the hopper in conjunction with the movement of the seed feeding member.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS. 1 to 3.

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 between the guide portion 4 and the operating portion 3 at an intermediate position.

A hopper 5 for continuously supplying seeds 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.

A substantially L-shaped handle portion 6 for vertically moving the operating rod 3 is provided at the upper end of the operating rod 3.

As shown in FIG. 1, a lever-shaped clutch member 8 is disposed in the middle of the operating rod 3 so as to be rotatable by a pivot shaft 10 in order to operate the punch operating rod 7. It moves up and down in unison with the up and down movement of.

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 part 13 is formed at the upper end of the claw part 9 so as to further protrude from the front surface 3a of the operating rod 3.

The rear end portion 13a of this stopper portion 13 is connected to the front surface 3 of the operating rod 3.
a, the clutch member 8 is held perpendicularly to the operating rod 3 by its own weight moment, and at the same time, rotation of the clutch member 8 in the counterclockwise direction (in FIG. 1) is prevented.

As shown in FIG. 3, the operating rod 3 is a long rod with a C-shaped cross section and an open side (the lower side of the operating rod 3 in FIG. 3). A bearing member 41 for screwing the portion 10, a is fixed inside the operating rod 3 by upper and lower caulking tabs 41a.

Collars 14 and 15 are 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 a guide slot 16 opened in the vertical direction of the guide portion 4.

The guide slot 1 in the collar 14 is used to prevent the operating rod 3 from being pulled out from above.
This is accomplished by engagement with the upper edge of 6.

Note that the operation rod 3 is prevented from coming off 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 a pin 47 provided on the lower side of the bottom wall portion 5a of the hopper 5. This is done by working together.

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.

It is preferable that this seed feeding piece 1T is 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 feeding piece 17 can be freely replaced if it is necessary to change the size of the seeds or the amount of sowing.

A seed picking hole 21 is formed in the seed feeding piece 1T in a diagonal direction toward the hopper 5, and an adjustment screw 22 for adjusting the amount of seeds picked up is threaded on the opposite side of the seed picking hole 21 from the hopper 5. are combined.

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.

On the inner surface of the operating rod 3 (the right side of the operating rod 3 in FIG. 2), a seed stirring projecting plate 3b is provided adjacent to the opening 21a and protruding into the hopper 5 in the longitudinal direction of the operating rod 3. .

A simple protrusion may be used instead of the seed stirring protrusion 3b.

The lower end 3c of this seed stirring projecting plate 3b protrudes below the brush 23 even when the operating rod 3 is at the upper limit position. This prevents seeds from falling into the chute 49a.

The upper end 3d of the seed stirring projecting plate 3b functions to break down the seeds that have formed a wall during the upward stroke of the operating rod 3.

Furthermore, various protrusions may be provided on both sides or one side of the seed stirring protrusion 3b to more effectively stir the seeds.

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.

This adjustment screw 22 is attached to the casing 20 as shown in FIG.
Since it protrudes toward the measuring direction (to the right hand side for the operator), it is easy to adjust during sowing 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.

A brush 23 is provided at the lower end of the hopper 5, as shown in FIGS. 2 and 3.

This brush 23 is held by a brush holding piece 23a, and the brush holding piece 23a is attached to a brush mounting position adjustment portion 23 formed to protrude sideways (to the right in FIG. 2) from the casing 2.
By attaching it to b via butterfly pole) 23c,
In FIG. 2, movement in the left and right directions is possible.

Thereby, even if the brush 23 is worn out, it is possible to correct for this non-wearing condition.

When the opening 21a of the seed picking hole 21 provided in the seed feeding piece 1T is exposed below the brush 23 as the operating rod 3 moves downward, the seeds filled in the seed picking hole 21 are The seeds are put into a sowing hole formed in the field along the slope of the hole wall of the seed picking hole 21.

There are two upper and lower support plugs 24 on the front of the casing 2.
, 25, the punch operating rod 7 is supported 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 2T is welded to the seeding hole depth adjusting screw portion 2T, and a punch 29 is screwed to this seeding hole depth adjusting screw portion 27 via a wing nut 28 so that the seeding hole depth can be adjusted freely.

The depth of the seeding hole to be formed is adjusted by the position of the punch 29 relative to the seeding hole depth adjustment screw 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 a seeding hole of a constant depth in the field.

A bushing 31 is protruded into the support bracket 25, and this bushing 31 abuts against the bumper 26 of the '14 rod 7 to determine the upper limit of movement of the punch 29.

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 7 is returned to the initial position in preparation for the next seeding hole formation 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.
381 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 .

The torsion coil spring 33 elastically biases the soil covering operation cam 36 counterclockwise with respect to the link 37, and the rear end upper side 36a of the soil covering operation cam 36 is pushed against the link 37.
The torsion coil spring 33 comes into contact with the upper end side tip 37a of 1.
The motor is placed at rest with a torque applied to it.

On the front side of the soil-covering operation cam 36 (on the right side of the soil-covering operation cam 36 in FIG. 1), the lower end of the soil-covering hook 32 provided at the lower end of the operation rod 3 is attached to the front side of the soil-covering operation cam 36 (in FIG. A play portion 39 is formed on which the portion 32a slides while being in contact with it.

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.

The link 37 is pivotally supported at an intermediate portion by a support shaft 45 fixed to the casing 2.

A rear end 38b of the link 38 is connected to the rear end 37b of the link 37 via a pivot pin 50 that is not fixed to the casing 2.

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

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 370, and is pushed out from the periphery of the seeding hole toward the center so as to pierce this periphery.

The manner of use of the seeding machine 1 described in detail above will be explained.

First, grasp the bundle part 6 and release 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 by the bundle 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 raised locking piece 30.

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 during the continued lowering process of the operating rod 3, the clutch member 8 does not slide relative to the pin 47, and the rotation support shaft 10 It rotates clockwise in FIG. 1 around .

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.
Due to the restoring force accumulated in the punching lever 4, the punching rod 7 and the punching rod 7 return to the initial position.

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, the seeds are thrown into the sowing hole from the opening 21a of the seed picking hole 21, immediately after passing the brush 23, through the chute 49a.

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 seeds are put into the seeding hole and the operator visually confirms this, the operating rod 3 is pulled up while the casing 2 remains in the field.

In this lifting stroke, the upper end 32a of the soil-covering hook 32 engages with the soil-covering operation cam 36 at the locking portion 46, and the soil-covering operation cam 36 is rotated counterclockwise against the torsion coil spring 33. The ring 37 is also rotated 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 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, the raising operation of the operating rod 3 causes the seed feeding piece 1 to
7 passes over the brush 23 and returns into the hopper 5 again.

During this time, the seed agitation plate 3b moves up together with the operating rod 3 and breaks down the wall of the seeds with its upper end 3d, so that the seeds are reliably placed in the seed picking hole 21 during the next downward stroke of the operating rod 3. Seeds can be picked up in quantity.

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.

In the above embodiment, a seed feeder type sowing machine that moves up and down with the operating rod was explained, but a rotating seed feeder roll type seeder also has a seed feeder near the seed pick-up hole that moves in conjunction with the movement of this roll. A seed stirring member that rotates or moves up and down may be provided.

As described above, according to the present invention, since the seeds in the hopper are agitated in conjunction with the movement of the seed dispensing member, even if the seeds form a wall due to moisture or large particle size, they can be reliably placed inside the seed picking hole. There will be no situation where the seeds are picked up by other people and cannot be sown.

[Brief explanation of the drawing]

Fig. 1 is a side vertical sectional view of the seeding machine according to the present invention, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a sectional view taken along the line B-B in Fig. 1. . 1...Seeding machine, 2...Casing, 3
......Operating rod, 3b... Seed stirring veneer, 5... Hopper, 1... Punch operating rod, 8... Clutch member , 17... Seed feeding piece 21... Seed picking hole.

Claims (1)

[Scope of utility model registration request] A casing having a built-in hopper for storing seeds, a punch that is vertically operated with respect to the casing to form a seeding hole, and an operating member that vertically operates the punch.
In a seeding machine equipped with a seed feeding member that picks up seeds in a hopper into a seed picking hole in conjunction with the movement of this operating member and sows the seeds in a seeding hole formed by a punch, 1. A seed stirring device for a seeding machine, characterized in that a seed stirring member is provided for stirring seeds in a hopper in conjunction with the movement of a seed feeding member.