JPH01215211A - Mulching seeder - Google Patents

Abstract

PURPOSE:To provide the title seeder free from requiring any position-detection sensor member for seeding holes, so designed that seeds discharged on a film are swept using a sweeper, via seeding holes on the film, onto furrows produced on a seeding bed by a furrow opener. CONSTITUTION:Seeds S discharged on a film 19 are swept using a sweeper 70, via seeding holes 18 on the film 19, onto furrows produced on a seeding bed M by a furrow opener 108. The sweeper 70 is brought to a position just after the seed-falling chute 54 of a seed-delivery apparatus C, and said seeds S are ensured to be quickly catched by the sweeper 70 and swept into the holes 18.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an improved mulch seeding machine for continuously and correctly sowing seeds from above the mulch film into the seeding holes of the mulch film laid over the seed bed.

<Prior art> In order to correctly match the seeding holes dotted in a mulch film at a constant pitch and the seeding position, this device is used to sow seeds before the film is laid. For example, the Special Publication Act 1986-1660
No. 5 is publicly known, and on the other hand, as a device for continuously sowing seeds after laying a film, for example, Japanese Patent Application Laid-Open No. 62-28571
No. 2 has already been proposed.

In the latter, which corresponds to the target model of the present invention, due to its structure, the position of the seeding hole in the mulch film is detected by a seeding sensor made of a spring material while it is being fed out from the reel, and the seeding tube is always in a closed state. A certain seeding shutter is intermittently operated in an open state to allow seeds to fall each time its position is detected.

<Problem to be solved by the invention> However, in the case of the above-mentioned known invention, it is necessary to correctly position and set the detection sensor on the front and back center line of the seeding holes arranged in a scattered manner on the mulch film, and when using it, The preparation work becomes extremely complicated, and this becomes especially noticeable when multiple seeding tubes are installed in parallel.

Furthermore, even if the mulch film is properly positioned and set, since it is made of extremely thin plastic film, typically 0.2 to 0.3 mm thick, it will be affected by various conditions such as climate and soil quality. During feeding from the reel, improper feeding posture such as loosening, wrinkling, or eccentricity is likely to occur, which will inevitably cause the sensor to malfunction or not work, resulting in uneven seeding.

Despite the detailed description of the known invention, in practice it is extremely difficult to achieve its stable and reliable effects with simple preparatory work.

Means for Solving the Problems> The present invention aims to solve the above problems, and for this purpose, it provides a perforated mulch film in which a large number of seeding holes are formed at a constant front-to-back pitch. A film laying device that sequentially and continuously feeds out the seeds to cover the seed bed, and a seed feeding device that feeds out the seeds from within the seed storage hopper and releases the seeds onto the film through the seed drop chute. In a multi-seeder, the seed dispensing device is attached to a tool bar pulled by a tractor so that its movement can be adjusted in the left and right direction, and a connecting arm is integrally extended forward from the seed dispensing box that forms the seed dispensing device. The front end of the tool bar is connected to the mounting bracket for the tool bar by a horizontal pivot shaft, and the front end of the undulating swivel is connected to the mounting bracket for the tool bar. The furrowing device that creates grooves and the soil covering device that covers the soil after sowing are assembled into a unit, and the trenching device and the soil covering device are assembled into a unit so that they can move up and down as one. A sweeper for sweeping seeds that elastically contacts the film after being laid is placed immediately after the seed falling chute to be formed, and the sweeper sweeps the seeds released onto the film as the tractor moves forward. The main feature is that the seeding groove is automatically swept from the seeding hole of the film into the seeding groove provided in the seeding bed by the groove creator.

<Operation> According to the above configuration, the front end of the connecting arm in the seed feeding device and the mounting bracket on the tool bar,
Due to the common rotation axis of the trencher and the earthen coverer,
Since it is assembled so that it can move up and down around its fulcrum, it effectively follows the ups and downs of the seeding bed, and the seed dropping chute that forms the seed feeding device also automatically attaches to the crop and soil covering device. The seeding holes scattered in the perforated mulch film are kept in a state of being aligned correctly on the front and rear center lines so as to correspond to each other.

When the mulch film is moved forward by a tractor, the mulch film is sequentially and continuously paid out from the film feeding roll of the film laying device and laid in a covering state on the seed bed, while the seed feeding device continues to feed the mulch film onto the film after it has been laid. Where the seeds are fed out by the seed feeding roll,
An elastic sweeper is placed immediately after the seed-falling chute, so that the seeds that have fallen from the chute are automatically drawn correctly from the sowing holes in the film into the sowing grooves in the seeding bed. , always maintains a stable seeding action.

<Example> Hereinafter, the specific configuration of the present invention will be described in detail based on the illustrated example.
In Figure 2, (A) is a rotary tiller pulled by a tractor or other power machine not shown,
The frame material of the leveling plate (12) attached to the rotary rear cover (11) has a pair of left and right culture plates. (13)
are installed so that the width of the ridge can be adjusted wide or narrow.

(14) is a frame installed in a state extending rearward from the rotary tilling device (A), and has an approximately torii-shaped overall shape when viewed from above, and the left and right sections are connected and fixed to both ends of the rear part of the frame. The support columns (17) of the stable shafts (16) are respectively attached to the pair of stable shaft support frames (15) so as to be movable and adjustable in the longitudinal direction and the vertical direction. By moving the stabilizing shaft (16) in the vertical direction, the tillage depth of the field by the rotary tiller (A) can be adjusted.

And, at the rear position of the stable shaft support frame (15),
Film laying device (B) forming the multi-seeder of the present invention
and a seed feeding device (C) are equipped as follows.

First, regarding the film laying device (B), this is a seeding bed (M) which is raised and formed into a substantially trapezoidal shape when viewed from the rear by the above-mentioned soil cultivator (13), and is dotted with sowing holes (18). A film feed roll (20) that automatically and continuously feeds out the perforated mulch film (19), and a pair of left and right film pressing wheels ( 21), and a pair of soil covering disks (23) that apply an appropriate amount of soil covering (22) to both left and right sides of the pressed film (19).
It mainly consists of.

(24) is a pair of left and right extension side frames that are fitted and connected to the rear end of the stable shaft support frame (15) so as to be able to freely adjust their movement in the front and back direction, and brackets (25) are attached to the intermediate position of each side frame. ) is fitted with a film hanger bar (26) so as to be movable and adjustable in the left and right direction. (27) is a film hanger arm that is suspended from each hanger bar (26) so as to be able to move vertically, and both hanger arms (27) are vertically adjustable.
) is located at the mid-height position of the film feed roll (20
) is mounted on an axis, while both hanger arms (2
7), the support shaft (29) of the film guide roll (28) is also fixedly suspended horizontally.

The film feeding roll (20) is equipped with a core tube (30) and a mulch film (19) that is tied in advance to the core tube, and the film (19) fed out from this is attached to the guide roll (28) as it moves freely. As a result of this action, the film is guided backward and downward into a round shape, and at that time, the film feed roll (2
When the film (19) is idly rolling, the gravel is released.A moderate braking force is applied to this film, and as the tractor moves forward, the film (19) is allowed to come out without loosening or tearing it. ing.

That is, as extracted from FIGS. 6 to 8, the core tube (30) of the film feed roll (20) is supported at both ends thereof via a pair of left and right circles IWA (31) so as to freely rotate. , the braking force is applied by the compression coil spring (32) from either one of them. (33) is connected to the film hanger arm (27) from one conical piece (31).
) is a screw handle for roll pressing that is integrally extended as a horizontal suspension state that passes through the film hanger arm (27) with an adjusting nut (34) screwed in the middle part. Compression coil spring (32) interposed between
is attached to the screw handle (33). still,
The remaining conical piece (31) is fixed to its corresponding film hanger arm (27) by a support shaft (35) such as a bolt.

Therefore, as suggested by the comparison between Figures 7 and 8, in order to position the adjustment lever (34), move it forward and backward in the left and right directions along its screw handle (33) in advance. By changing one of the coil springs (32) + 7), the strength of the braking elastic force on the film feed roll (20) can be adjusted.

Regardless of the degree of adjustment, by pulling the screw handle (33) laterally outward while resisting the tension of the coil spring (32), the double conical piece (31) can be expanded.
It is also possible to remove and replace the film delivery roll (20) from between the left and right sides of the film. Therefore, by removing the feeding roll (20),
It can be said that it can also be used for normal seeding work without laying the mulch film (19).

From the rear end of the extended side frame (24), a second
Refracting arm (36) shaped like a dogleg when viewed from the side as shown in the figure.
are projected downward, and the above-mentioned film pressing ring (21) is rotatably supported at the front lower end position of each. The pressing ring (21) is made of cushion material and acts to press down the film (19) without damaging it.

(37) is a bending fulcrum pin that connects the middle part of the bending arm (36), and (38) is a pair of left and right lifting rods that are erected to intersect with the middle part of the bending arm (36), and a compression coil spring is attached to these. (39), an appropriate ground impact force is applied to the film pressing ring (21).

(40) includes the refracting arm (36) and the extended side frame (
24), around which a bending arm (36) with a film pressing ring (21) can be folded up. (41) is a tension coil spring that locks and holds the folded state, and is connected and suspended between the bending arm (36) and the extension side frame (24) as shown in Fig. 1.2. . Disc support arms (42) are also integrally extended rearward from the mid-height position of the bending arm (36), and the above-mentioned earth-filling disc (
The column (43) of 23) is also attached so as to be freely adjustable in its movement in the vertical direction.

On the other hand, an extended center frame (44) is parallel to the stable shaft support frame (15) and extended side frames (24) toward the rear from the center of the frame (14) located on the center line of travel of the tractor. It has been dispatched to a supporting position. (45) is its extended center frame (
44) A hanger post for a tool bar that hangs integrally from a midway position, and is made of hollow square pipe material,
To install the seed feeding device (C) above, use the toolbar (
46) are horizontally suspended parallel to the rotation axes of the film feed roll (20) and the film guide roll (28).

In other words, the tool bar (46) has an inverted single-shape shape when viewed from the rear, and the support (47) made of hollow square pipe material vertically extends from the middle of the tool bar (46).
It is fitted and connected to the tool bar hanger post (45) (4) so that its movement can be adjusted in the vertical direction. (48) is the column (47) of the toolbar (46).
), and (49) is a screw handle for adjusting the installation height inserted into the support column (47) from above to maintain the screwed state with the nut (48). By rotating this, the installation height of the tool bar (46) can be changed.

As is clear from FIG. 3, the tool bar (46) faces a position almost immediately in front of the film feed roll (20),
In addition, the above-mentioned seed feeding device (C) is a plurality of multiple types,
They are installed in parallel at regular intervals.

Next, each part of the seed dispensing device (C) will be explained. As shown in Figs. a seed feed roll (51) mounted on a shaft;
Furthermore, a rotating support shaft (
The ground drive wheel (53) is attached to one end of the feed roll (52) and rotates the feed roll (51).
1) Falling chute (5) of seeds (S) fed out by
4) is also suspended from the hopper (50) in a state where it is always tilted backwards.

The hopper (50) has a funnel shape when viewed from the side,
To that extent, it may be created as a whole as a whole, but
In the case of turning, this is the small seed dispensing box (55
) and are made separately and assembled in a state where they are connected and connected to each other indoors. And the delivery box (55)
The seed feed roll (51) is placed so as to cover it from below.

(56) is a seed dispensing groove provided on the circumferential surface of the dispensing roll (51), and (57) is an elastic scraper for measuring the seeds (S) received in the concave groove (56). and
Butterfly pole to the front wall of the above feeding box (55)) (5B
), etc., so that it can be freely adjusted forward and backward toward the circumferential surface of the delivery roll (51). (59) is a cover plate which is also fixed to the rear wall of the feeding box (55) with screws (60), etc.
It forms a front and rear pair with the I quantity scraper (57), and their attachments can be changed relative to each other.

The front wall surface and rear wall surface of the feeding box (55) covered by these exhibit a substantially symmetrical form, and
The screw holes for receiving the butterfly bolt (58) and the screw (60) are opened in corresponding sizes to match each other. Note that (61) is an opening/closing cap of the hopper (50).

The seed dispensing roll (51) and its rotation support shaft (52) are in an assembled state in which they rotate integrally with each other and can be inserted and removed relative to each other, and the dispensing box (5
The ground drive wheel (53) of the seed feed roll (51) is fitted onto one exposed end of the rotating support shaft (52) which is supported in a horizontal penetrating manner to 5). Ground drive wheel (53
) is made of an elastic material on its circumferential surface, which allows it to be transferred without damaging the film (19), to flatten the film (19) in close contact with the seeding bed (M), and to use the seed feed roll. (51) will be rotated.

As described above, the seed dispensing roll (51) can be pulled out and replaced relative to its rotational support shaft (52), but the configuration for this purpose is such that it can be rotated, either on the left or right side of the seed dispensing box (55). A cylindrical bearing wall plate (62) is formed overhanging only on one side wall surface, and a so-called seed feeding roll (51) is operated by a rotating support shaft (52) extending horizontally through the bearing wall plate (62). If it is supported in a cantilevered state, there is no need to pull out and disassemble the rotating shaft (52) from the feeding box (55).
55) from the remaining open side of the rotating support shaft (52).
In contrast, it is possible to insert and remove the seed feed roll (51), which can be said to be advantageous.

In addition, as long as the seed feeding roll (51) and its rotational support shaft (52) are in a fitted state where they rotate integrally with each other, their fitting surfaces may be formed with a square cross section, a spline, or a key along the axis of rotation. However, in particular, the key pin (63) can be fitted via the rotating support shaft (52).
), and if the pin (63) is inserted and a key hole (64) is formed in the seed dispensing roll (51), the mutual locking action will cause the dispensing roll ( Not only can the box (51) be rotated integrally, but also its rotation support shaft (52) can rotate the box (51).
It is also possible to pull out laterally outward from the bearing wall plate (62) in 5).
It is very reasonable in that it can be prevented by the key bin (63).

The seed falling chute (54) has 1, a seed feeding roll (
It has a substantially gutter-shaped cross section with a constant opening width viewed from below on the circumferential surface of the roll (51), and is adapted to rotate in an undulating manner about the rotation axis of the feed roll (51) as a pivot point. .

That is, the illustrated symbol (65) is a seed falling shoe) (54)
As is clear from Figure 9.11, it has an abbreviated overall shape when viewed from the rear, and one horizontal end is the so-called bottom wall surface of (54). The hanger stay (66) is fixedly integrated with the mounting piece (66) that protrudes from the
The other vertical end of 5) serves as a mounting boss (68) and is attached to a cylindrical bearing wall plate (62) projecting downward from the seed dispensing box (55) so as to be rotatable and detachable. It is fitted.

As mentioned above, the rotational support shaft (52>) of the seed feed roll (51) is passed through the center of the bearing wall plate (62), so that the chute (54) can be attached to the spindle (52).
52), it is possible to perform an undulating oscillating motion around it. It goes without saying that the rotational support shaft (52) is located on the symmetrical virtual vertical center line (V - V) that bisects the seed dispensing box (55) into two equal parts, as shown in Fig. 10. stomach.

Seed falling shoe) (54) is always backward-sloping flJ [
I mentioned above that it is suspended in the I'4 installed state, but
A sweeper mounting base (69) is fixedly integrated with the rear end by welding or the like in a transverse state.

However, when the mounting base (69) is attached, the rear end of the shoe (54) is of course in an open state from which the seeds (S) can fall.

In this regard, as shown in Figures 12 to 15, the bottom wall surface of the chute (54) is bent into a substantially V-shape when viewed from the rear that gradually becomes deeper toward the rear end. While keeping the falling action length (L) of the seeds (S) constant,
If the inclined installation angle (alpha) of the rear edge (which can also be referred to as the intersection angle with the seeding bed or mulch film) (α) is set as steep as possible (large acute angle in side view), the seed This is extremely beneficial because the falling action of (S) can be further promoted.

(70) is an elastic sweeper that sweeps the seeds (S) into the seeding holes (18) of the mulch film (19), and is preferably made of synthetic resin brush bristles. ) is removably attached to the mounting base (69) of the chute (54) with a butterfly bolt (72) or the like. (73) is the screw hole provided in the mounting base (69), ()4) is the screw hole (
A lifting guide elongated hole is opened in the holding bracket (71) of the sweeper (70) so as to correspond to the sweeper (73).
The installation height of the sweeper (70) can be adjusted, and the position of the sweeper (70) can also be changed by turning the brush bristles upward.

If you change the attachment by turning the brush bristles of the sweeper (70) upward, or if you remove it from the mounting base (69) of the sweeper (54), use the multi-film (19) as shown in Figure 19.20. Ordinary seeding work without laying the ground can be carried out without any problems. At that time, the film feeding roll (20) may also be removed as described above.

In addition, when used for such normal sowing work, spikes (instead of the elastic material on the circumferential surface as shown in FIG. It is possible to prevent the seed feed roll (51) from idling by replacing it with a separate piece with an overhanging portion (75) and attaching it to the rotating support shaft (52) in the same manner as above. It is advantageous.

Moreover, the brush bristles of the sweeper (10) are arranged in the first position due to the curvature of the mouthpiece of the bracket (71).
As shown in Figure 6.17, it is shaped like a 0-shape or a 7-shape when viewed from the bottom with the front open.It quickly and reliably captures the seeds (S) that fall from the shoe (54), and the film ( 19) so that it can be automatically swept into the seeding hole (18).

In order to more completely prevent the seeds (S) from escaping and rolling on the film (19), an elastic cover (76) made of sponge or felt as shown in Figure 9.10 is installed on the sweeper (10). ) The brush bristles of the sweeper (70) can be shaped into an endless circle when viewed from the bottom, without using the separate cover (76), which is preferably installed as an accessory at the position immediately before the sweeper (70). can also be considered.

In the case of the state side, the cover (76) is attached to the integrated bracket (77) (shoe) (54)
The mounting base (69) of the sweeper (70) is interposed between the front and rear of the bracket (71) of the sweeper (70), and while the butterfly bolt (72) is also used, the wing bolt (72) is simultaneously tightened and fixed to the mounting base (69). are doing. With its elastic cover (76) and sweeper (70), the seeding hole (
18) is set as a completely surrounding relationship state as shown in FIG. In addition, (78) is a cover (
The bolt receiver opened in the bracket (77) of 76> indicates an insertion hole.

(79) is a rocking rotundo which is erected from a position near the rear end of the seed dropping chute (54), and a compression coil spring (80) suspended from the rotunda is used to sweep the sweeper (
70) and the elastic cover (76) are adapted to ground the film (19) of the seeding bed (M) with an appropriate elastic force. The lower end of the swing rod (79) is bent into an L-shape when viewed from the rear, and is suspended horizontally through the chute (54) in a stable pivoting state. The upper end connects to the bearing boss (81b) projecting from the rear wall of the seed dispensing box (55), and connects to the pivot bin (82).
) is maintained connected via. The pivot bottle (82)
can be freely inserted into and removed from the bearing boss (81b).

In that case, the bearing bosses (81b) of the seed dispensing box (55) that receives the pivot bin (82) are arranged as a pair of upper and lower bearings, as shown by different reference numerals (81a) in Fig. 9.10. It extends integrally from the front wall surface of the feeding box (55), and a pair of bearing bosses (81a) and (81b) at the front and rear thereof are arranged symmetrically with each other. The bearing boss (81
b) is penetrated by the pivot pin (82) that holds the upper end i of the swing rod (79).

In addition, the seed fall chute (54) is covered with a transparent protective cover (83) as indicated by the chain lines in Figures 12 to 15 to prevent obstructions such as rainwater, clods of soil, and foreign matter from entering. (Long knee)
It is also conceivable to create (54) itself in the shape of a hollow vibrator.

(84) is a seed dispensing device (
C) connecting arm, which connects the film feeding roll (
20) A bracket (85) that is curved into an inverted U-shape when viewed from the side and is attached and integrated at the rear end.
is connected and fixed to the front bearing boss (81a) of the seed dispensing box (55) by a pair of upper and lower fixing pins (86). Like the pivot pin (82) of the swing rod (79), the fixing pin (86) can also be inserted into and removed from the bearing boss (81a). Furthermore, the fixing pin (86) and the pivot pin (82) can be inserted interchangeably through the front and rear pairs of bearing bosses (81a) and (81b), respectively.

In this way, a plurality of bearing bosses (81a) (81b) are arranged symmetrically in the front and back from the seed dispensing box (55).
At the same time, attach a pair of fixing pins (8
6) and the pivot pin (82) can be used interchangeably, the above-mentioned rotary support shaft (53) with the ground-contact drive wheel (53)
52), the seed dispensing roll (51) supported in a so-called cantilevered state can be inserted and removed from its rotating shaft (52), and the hanger stay (65) of the seed drop chute (54) can be moved from the dispensing box (55). ) can be inserted into and removed from the cylindrical bearing wall plate (62) of the seed dispensing device (62).
In particular, the medium feeding box (55) in C) can be set to face forward or backward, and the direction can be changed as it is to prevent troublesome installations.When changing the direction, the seed feeding roll (51) and its The ground drive wheel (53), seed drop shoe (54), swing rod (79), etc. are also attached to the feeding box (55).

By doing so, as suggested from FIG. 4, the plurality of seed dispensing devices (C) can be maintained in a suitable weight balance state symmetrical with respect to the center line of travel of the tractor, and the above-mentioned ground drive wheels ( 53) is also inward (inward facing the center line of progress) so that the seed feed roll (51) can be reliably rotated at all times without the risk of it projecting laterally outward from both the left and right shoulders of the seed bed (M) and floating. The installation state has the effect of being able to be placed in parallel.

On the other hand, the shaft cylinder (87) is fixedly integrated with the front end of the connecting arm (84) by welding or the like in a horizontally suspended state.
1 has been done. (8B) is a gun bracket which is fitted onto the tool bar (46) so that its movement can be adjusted in the left and right direction, and is made of a short hollow rectangular pipe. A pair of left and right ears (89) sandwiching the shaft tube (87) of the connecting arm (84) are integrally extended forward. (90) is the piece of both ears (
The bearing opened at the upper position of the shaft (89) is an insertion hole, from which a horizontal rotation shaft (
91), the connecting arm (84) is rotatably connected to the mounting bracket (88).

In other words, the seed dispensing device (C) continues to carry out the sowing action from above the mulch film (19) laid on the sowing bed (M).
), and moreover, the mounting bracket (88) is attached to the tool /'i'-(46).
By adjusting the movement along the film (19), the medium seed dropping chute (5
4) can be positioned and set to match correctly.

(92) is a screw handle for adjusting the position of the mounting bracket (88) with respect to the tool bar (46), and a screw hole (93) opened in the upper wall surface of the bracket (88).
It is built with screws so that it can be moved forward and backward from above.

(94) is an engagement cam plate inserted between the upper and lower parts of the neck of the screw handle (92) and the mounting bracket (88), and has a generally fan-shaped overall shape in plan view. , a screw handle (92) passes through the hole (95) in the main part.
) can also be rotated horizontally using the pivot leg as a pivot point.

(96a) (96b) (96c) are the cam plates (9
4), and as is clear from FIGS. 21 to 24, the first engagement notch (9
6a) has a hook shape in plan view with the front cut off, whereas the second engagement notch (96b) continuous with this is in a fully open state at the front. Moreover, the 1st and 2nd engagement notches (
96a) and (96b) are cut out and arranged on rotation loci of the same radius dimension (R1) centered on the pivot point.

In addition, the remaining third engagement notch (96c) is the first and second engagement notch (
96a) is located on a different rotation locus with a radius dimension (R2) longer by a certain dimension (W) than (96b), and is in a discontinuous state with both the engagement notches (96a) and (96b). Separated. And the first to third engagement notches (
96a), (96b), and (96c) are all arranged so as to be able to engage and disengage with the middle part of the connection arm (84).

That is, by connecting the connecting arm (84) to the mounting bracket (88) to the tool bar (46) via the rotation axis (91), the entire seed feeding device (C) can be attached to the seed bed (M). As mentioned above, the connecting arm (84) is connected to the cam plate (94).
), since the third engaging notch (96c) is located on the rotation locus of the long radius dimension (R2), the third engaging notch (96c) of the 24th, 26th. As shown in Fig. 27, the seed feeding device (C) is supposed to rise slightly above the seeding bed (M).

On the other hand, when the connecting arm (84) is secured to the first engagement notch (96a) of the cam plate (94), the first engagement notch (96a) has a rotation locus with a short radius dimension (R1). Since the seed dispensing device (C) is placed above the sowing bed (M), the seed dispensing device (C) is grounded to the sowing bed (M) in a state where it can carry out its sowing operation without any trouble, but the first engaging notch (96a) is Due to its restrained hook shape, the forward pivoting movement of the connecting arm (84) is fixedly locked, as is clear from Figure 23.25, and its seed delivery device (C) is free from the overall oscillation. Inability to operate.

It will be kept as follows.

The second engagement notch (96b) is in the open state at the front.
Only when the connecting arm (84) is engaged as shown in FIG. Therefore, the seeding work is carried out in this condition.

The above three types of actions are performed by moving the cam plate (94) to the screw handle (
92) horizontally around the fulcrum, and at that time, if necessary, also lift the seed feeding device (C) and connect its first to third engagement notches (96a) (96b) (96c) with the connecting arm (84). ) can be selectively engaged and disengaged, allowing for one-touch switching. (97) is a compression coil spring for locking the rotation of the cam plate (94), and is inserted between the upper and lower parts of the neck of the screw handle (92) and the cam plate (94). .

A coil spring (9) pushes down and fixes the cam plate (94).
If the elastic force 7) is released by screwing back the screw handle (92), the cam plate (94) can be horizontally rotated as described above.

When the connecting arm (84) is engaged with the first engagement notch (96a) of the cam plate (94), the entire seed dispensing device (C) is fixed and locked in a state where it cannot be oscillated in an undulating manner. Therefore, if the mulch seeding machine is lifted by a tractor and is driven on a ship, etc., the seed dispensing device (C) may shake against the tool bar (46), or each seed dispensing device (C) may accidentally Falling can be effectively prevented.

Similarly, if the connecting arm (84) is engaged with the third engagement notch (96c) of the cam plate (94), the seed feeding device (C
) can be intentionally held in a state where it floats a certain height (H) above the seeding bed (M), as suggested by the chain line in Fig. 27. When installed in parallel on the tool bar (46), by floating any seed dispensing device (C), it is possible to quickly respond to changes in the number of rows to be sown or the spacing between adjacent rows on the left and right. Become. When changing the number of rows, etc., there is no need to pull out only the seed dispensing device (C), which is unnecessary in use, laterally outward from the tool bar (46).

Further, (98) also serves as the rotation axis (91) of the connecting arm (84) for the mounting bracket (88) to the tool bar (46), and also serves as the pivot axis (91) for connecting the connecting arm (84) to the projecting ear piece (89) of the mounting bracket (88). It is also a hanger stay for a groove cutter that is rotatably connected, and has an abbreviated shape when viewed from the side as shown in Figures 21, 25, and 26. (99) is a pair of left and right projecting tongues attached and integrated with the vertical upper end of the hanger stay (98), and corresponds to the projecting ears (89) of the mounting bracket (88); The bearing is connected to the communication hole (10o) with the insertion hole (9o).
0) is formed with an opening.

(101) is a hole opened at the lower end of both protruding ears (89) of the mounting bracket (88), into which a rod holder is inserted and a bottle (102) is horizontally passed through and suspended. . (103) is a hole formed through the center of the pin (1021), and (104) is a hole opened at the center of the upper end of the hanger stay (9th), corresponding to this, Both stupid holes (103)
An advancing/retracting rod (105) for adjusting ground pressure is penetrated between the front and rear sides of <104) so as to be freely movable forward and backward. The mid-height position of the groove cutter hanger stay (98) suspended from the rotation axis (91) is stably supported by the reciprocating rod (105).

(106) is a compression coil spring that is installed on the retractable rod (105) while being interposed between the rear end head of the retractable rod (105) and the hanger stay (98);
Rotate the adjustment nut (107) screwed onto the front end threaded portion of the forward/backward rod (105) to adjust the forward/backward rod (105).
) in the front-rear direction to adjust the tension of the compression coil spring (106), the ground pressure of the furrower (108) against the seed bed (M) changes in strength.

As extracted in Fig. 28.29, the groove making machine M (108) has a smoothly curved sled shape or boat bottom shape as a whole, and its front end is connected to the groove making tool hanger stay (98).
) is attached to the lower end of the seed drop shoe ) (54) by a butterfly bolt (109), etc., and extends along the lower surface of the mulch film (19) to a position just behind the seed drop shoe (54). (110) indicates a screw hole for receiving a butterfly bolt (109) opened in the hanger stay (98). As the tractor advances, a seeding opening m (G) of a constant width is provided to the seeding bed (M) by the groove ``W'' (108).

Furthermore, the groove 1it (108) has a U-shaped cross section with a pair of horizontal protruding flanges (111) on the left and right sides, and as suggested from Figures 31 and 32, its smooth Both flange pieces (111) make surface contact with the film (19) without damaging it, and also stably support the brush bristles of the sweeper (To) and the cover (76) from below.

(112) is a belt-shaped seed discharge opening cut out in the bottom of the rear part of the furrower (108), and the seed drop chute (
54) is maintained in a state of proper communication opening with the rear end portion of the opening. Due to the notch of the seed discharge port (112), a pair of left and right hanging pieces (113) remaining in the groove cutter (108) having a U-shaped cross-section can be used after embankment is made by providing a seeding groove (G). It is useful for soil removal to prevent soil fall and intrusion.

Further, (114) is a soil covering device that is attached to the trencher (108) as a unit in advance, and is made of a pair of left and right nine zelkova pieces, and only its front ends are attached to the trencher (108). It is fixedly integrated with the front end by welding.

In that case, the hanger stay (98) for the groove cutter should be inserted between the left and right sides of both round bars.
98) and groove 1 (108) are connected and fixed in a positioning regulation state that prevents sideways vibration as shown in FIG.

Then, the earthen cover (114) gradually becomes wider from the middle part, and the both protruding flanges (11) of the groove cutter (108)
1) and extends further rearward than the groove maker (108). Therefore, earthenware (114
) The rear end of the so-called free end is given appropriate elasticity, and the pair of left and right free ends are inward-facing, approximately horizontal bent pieces (115), which are used as so-called free ends to provide a suitable elasticity. Seeds (S) can be reliably covered with soil by themselves.

As is clear from the above description, the connecting arm (84) of the seed dispensing device (C) to the tool bar (46) and the attached unitized furrower (108) of the soil coverr (114)
are pivotally connected to a common mounting bracket (88), so after adjusting the movement of the mounting bracket (88) in the left and right direction along the tool bar (46), position and fix it with the screw handle (92). By doing so, as a whole unit of the seed feeding device (C) and the furrowing device (108), the longitudinal center line (Y-Y ) can be installed at the same time in a so-called one-touch operation, and in a correct matching manner.

In addition, under the above-mentioned relationship conditions, the groove maker (108)
The soil covering W (114) is assembled into a unit in advance, and its front end is attached to the mounting bracket (88) as a whole via the groove cutter hanger stay (98) and the rotation axis (91). The compression coil spring (10
6) is configured so that the ground pressure acts on the entire area, so even if the ground pressure is adjusted to be strong or weak, the groove creator (1
08) and the earthen covering vessel (114) will be maintained constant at all times, and in this sense as well, the mulch sowing work can be made appropriate and stable as a whole.

Furthermore, (116) is the extension center frame (4) described above.
(117) This is a hanger frame for a compression roller that is extended in a suspended state from 4) toward the rear, and as is clear from Figure 3.33, there is an extension mass at its lower end.
When viewed from the side, it has an almost inverted character shape. (118) is a pivot pin that is located slightly behind the hanger post (45) of the tool bar (46) and extends horizontally through the middle of the extended center frame (44). (116) by attaching the front end of the hanger frame (116).
16) is designed to perform undulating rocking motion around the pivot pin (118).

(119) is the hanger frame (1
In order to stop the middle part of the hanger frame (116), it is a support pin that is fixed and hung horizontally on the rear end of the extended center frame (44), and has an inverted T-shape when viewed from the rear. ), a compression coil spring (120) is attached to the threaded shaft that extends vertically as a penetrating state. (121) is an adjustment nut for adjusting the tension of the coil spring (120), and is screwed onto the threaded shaft of the support pin (119) from above.

The extension mast (117) is attached to the hanger frame (116).
), and is assembled by its positioning fixing pin (122). (123)
is the extension mass in the hanger frame (116))
(117) is a rotation angle adjusting plate that integrally extends rearward from the lower end, and has a substantially fan shape when viewed from the side.

(124) is a rotation center hole opened in the main part of the adjustment plate (123), (125a) (125b) (125c
) are a plurality of adjustment holes opened around the circular arc of the adjustment plate (123), which are scattered on the virtual rotation locus that maintains a constant diameter from the center hole (124), and the adjustment The rotation angle range (β) of the entire holes (125a, 125b, and 125c) is set in advance to about 90 degrees.

(126) is a fork-shaped pressure roller operation column that sandwiches the adjustment plate (123), and from its lower end is a pair of left and right pressure roller support shafts (127).
are extended horizontally and integrally, and intersect with each other by a certain angle (y).

In other words, the operation column (126), which is attached to and integrated with both support shafts (127), is shaped as a whole into an inverted Y shape when viewed from the rear, and the pressure roller is attached to the support shaft (127). (128) are fitted in each sleeve so that they can freely rotate and be inserted and removed.

The adjustment holes (125a) of the adjustment plate (123) (1
25b) The rotation angle selection hole (129) that alternatively matches (125C) and the center hole (123) of the adjustment plate (123)
Since the upper and lower pairs of the pivot holes (130) corresponding to the pivot holes (124) are formed as openings, the above-mentioned compression The roller (12B) can be stably and rigidly attached to the extension mass (127) of the hanger frame (116).

In addition, (133) is a handle extending from the upper end of the operation column (126), and (134) is also a handle that extends from the upper end of the operation column (126).
From 6) onwards, the left and right portions are the scrapers for the pressure rollers that are stretched out.

In use, the selection hole (129) of the operation column (126)
and the adjustment hole (125a) of the adjustment plate (123) (125
b) Adjustment pin (131) passing through (125c)
) is inserted and removed, and the operating column (126) is rotated within the rotation angle range (β) of approximately 90 degrees. When maintained in a standing posture, the pair of left and right pressure roller support shafts (127) are the same 1! in the plan view of FIG. 35 (1).
(Z-Z) and are in a relationship that intersects in a mountain shape in rear view as shown in Fig. 36 (I), and then the seed bed (M) is spread over the seed bed (M) in number by the two pressing rollers (128). At the same time as shaping into a mold, wrinkle the mulch film (19) onto the seeding bed (M) (vMM as the overall tension state).
It is possible to do so.

On the other hand, when the operating column (126) is positioned and fixed in the approximately horizontal prone position as seen from the side as shown in FIG. 34 (II), the pair of left and right pressure roller support shafts (127)
In the rear view as shown in Figure 6 (n), the same horizontal line (X -
), and the relationship is such that they intersect in a backward mountain shape in a plan view as shown in FIG. At the same time, a film (
19) can be brought into close contact with the overall state of tension, so that a suitable suppressing effect can be achieved.

<Effects of the Invention> As described above, in the present invention, the perforated mulch film (19) in which a large number of seeding holes (18) are opened at a constant front-to-back pitch is sequentially and continuously rolled out, and the seeding is performed. Floor (M
), and a film laying device (B) that feeds the seeds (S) from inside the seed storage hopper (50) and releases them onto the film (19) through the seed drop shoe (54). In a multi-seeder, the seed dispensing device (C) is attached to a tool bar (46) towed by a tractor as a movable adjustable sintering device along the left and right direction. (C) The front end of the connecting arm (84) that integrally extends forward from the seed dispensing box (55),
The mounting bracket (88) to the tool bar (46) is connected to the mounting bracket (88) by a horizontal rotation axis (91) so as to be swingable in an up and down manner, and the rotation axis (91) is also used as the spray bracket).
(88), crop 41 (108) that provides a seeding groove (G) in the seed bed (M), and a soil covering device (108) that covers soil after sowing.
114) is also assembled into a unit, and its groove cutter (108)
) and the soil coverr (114) to be able to move up and down in an integrated manner, and the seed falling shinito (
54), a sweeper (70) for sweeping in seeds that elastically contacts the film (19) after being laid.
The seeds (S) released onto the film (19) as the tractor moves forward are removed by the sweeper (70) from the seeding hole (18) of the film (19) into the furrower. (1
Seed groove (G) provided on the seed bed (M) by 08)
Since the seeding hole (18) is set to automatically sweep into the seed hole, the problem of the prior art described at the beginning can be solved, and there is no need for a mechanical or electrical position detection sensor member for the seeding hole (18). With this extremely easy preparation work, the film (19) is automatically and correctly placed into the seeding hole (18).
Seeds (S) can be sown.

That is, in the case of the present invention, seeds (S) are dropped and released onto the film (19) after being laid as a covering state on the seeding bed (M), and the seeds (S) are subsequently passed through the seeding hole (18) of the film (19). ) into the film by an elastic sweeper (70), and in particular, since the sweeper (70) is located immediately after the seed falling chute (54) that forms the seed feeding device (C), the film (19) The seeds (S) that are released by falling onto the top are quickly and reliably captured by the sweeper (70) without having time to escape and roll in the left and right directions. ), and the seeding effect is extremely excellent.

In addition, the above-mentioned seed falling shoe) (54) and sweeper (7)
Connection arm (84) of the seed dispensing device (C) with 0)
is connected at its front end to a mounting bracket (88) for mounting on the tool bar (46) by a horizontal pivot shaft (91), and also serves as a mounting bracket (88) for mounting the tool bar (46). ) is equipped with a groover (10
8) and the soil covering device (114) are also assembled as a unit, and the seed dispensing device (C), the furrowing device (108), and the soil covering device (114) all use the rotation axis (91) as a fulcrum. Since it is designed to perform rocking motion in an undulating manner, it effectively follows the undulations of the seeding bed (M), contributing to the stability of the seeding action.

Furthermore, the entire seed feeding device (C), furrowing device (108), and soil covering device (114) can be moved all at the same time by a common rotation axis (91), and both before and after the sowing hole (18) in the film (19). It can be installed on the tool bar (46) in a so-called one-touch operation as a relational state that automatically corresponds and matches on the center line (Y-Y), and is also important for multi-seed seed dispensing device (C). Beneficial.

Further, the groove cutter (108) is formed into a sled shape or boat bottom shape extending along the lower surface of the mulch film (19), so that the groove cutter (108) is brought into contact with the mulch film (19). and a pair of left and right covering tools (114) that are formed into a bar shape and extending further rearward than the trencher (108), which are assembled in advance as a unit and are attached to a mounting bracket (88) at the front end thereof. ), and are connected to raise and lower by a common rotation axis (91), and the assembled unit body of the groove! If provided, the trencher (108) and the earthen coverr (114) are pre-assembled as a unit, and the raising and lowering movement using the rotation axis (91) as a fulcrum can be performed by, for example, grounding the rear end. Even if the force is adjusted to be stronger or weaker, or changes in soil conditions occur, the undulating motion can be stabilized as a constant action that is always performed in conjunction, and the necessary structure is simple and sufficient. Nevertheless, it can be said to be more and more profitable in that it can be used for both trench-cutting and soil-covering purposes.

[Brief explanation of the drawing]

FIG. 1 is an overall schematic slope view of the mulch seeding machine according to the present invention;
FIG. 2 is a general schematic side view, and FIG. 3 is a side view showing the arrangement of the film laying device and the seed feeding device.
FIG. 4 is a rear view showing the parallel installation state of the seed feeding device, FIG. 5 is a slope view extracting and showing the seed feeding device, and FIG. 6 is a slope view extracting and showing the installed state of the film laying device.
Figure 7.8 is a front view showing a comparison of the adjustment states of the braking force on the film feed roll, Figure 9 is an exploded perspective view of the seed feeder, and Figure 10.11 is a partial view of the seed feeder. Cutaway side sectional view and sectional rear view, No. 12.1
Figure 3 is a plan view and rear view showing the seed falling chute, and Figures 14 and 15 are lines 14-14 and 15 in Figure 12.
-15 line, Fig. 16 is a slope view showing the elastic seed sweeper, Fig. 17 is a plan view showing the working relationship between the sweeper and the seeding hole of the film, and Fig. 18 is the space between the seeds. (Fig. 19 is a side view showing the non-mulch seeding operation state corresponding to Fig. 3, and Fig. 20 is a plan view showing the arrangement relationship state of the sweeper and the elastic cover. Fig. 20 is a plan view showing the arrangement relationship state of the sweeper and the elastic cover. 21 is an exploded perspective view showing the installation relationship between the connecting arm and groove cutter with respect to the mounting bracket on the tool bar; FIG. 22 is an enlarged sectional view taken along line 22-22 in FIG. 3; 23 and 24 are cross-sectional plan views showing the seed dispensing device in a non-swingable fixed set state and in a floating set state from the seeding bed, respectively, and FIG. 25 is a cross-sectional plan view corresponding to FIG. 26 is a sectional view taken along line 26-26 in FIG. 24, FIG. 27 is an overall side view showing the floating set state of the same seed dispensing device, and FIG. 28.29
The figure is a slope view of the assembled unit of the furrower and earthen coverer seen from both front and back sides, Figure 30 is an enlarged cross-sectional view taken along line 30-30 in Figure 3, and Figure 31 is the seeding hole formed by the furrower. 32 is a cross-sectional rear view showing how the soil is covered by the soil covering device; FIG. 33 is an exploded slope view showing the installation state of the pressure roller; FIG. 34 (1) (
Ir) is a side view showing the angle change state of the pressure roller in comparison, Fig. 35M(1)(n) and Fig. 36(1)
(II) is a plan view and a rear view corresponding to FIGS. 34(1) and (11), respectively. (18)...Seeding hole (19)...Multi film (46)...Tool bar (50)...Seed storage hopper (55)...Seed feeding box (70)...Elastic sweeper (84)...Connection arm (88)...Mounting bracket (91)...Rotation axis (108)...Furrow cutter (114)...Soil coverer (A)...Rotary tiller Device (B)...Film laying device (C)...Seed feeding device (M)...Seeding bed (S)...Seed Figure 11 Figure 16 Figure 0 Figure 25 Figure N30 Figure 31 Figure 32'fJ IIQ-

Claims (1)

[Claims] 1. A perforated mulch film (19) in which a large number of seeding holes (18) are opened at a constant front-to-back pitch is sequentially and continuously fed out onto a seeding bed (M). A film laying device (B) that lays the film in a covered state, and a seed storage hopper (5
0) a seed dispensing device (C) that dispenses seeds (S) from inside and releases them onto the film (19) through the seed drop chute (54), and the seed dispensing device (C) is towed by a tractor. In the multi-seeder installed so that the movement can be adjusted in the horizontal direction, the seed dispensing box (5) forming the seed dispensing device (C) is attached to the tool bar (46) that is
5), the connecting arm (84
) is connected to the mounting bracket (88) for the tool bar (46) so as to be swingable in an undulating manner by a horizontal rotation axis (91), and the rotation axis (91) is also used. At the same time, attach the seed bed (M) to the above mounting bracket (88).
A trencher (108) that provides a groove (G) for sowing and a soil covering device (114) that covers soil after sowing are also assembled into a unit, and the trencher (108) and soil covering device (114) are assembled into a unit. The seed dropping chute (C), which also forms the seed dispensing device (C), is
54), a sweeper (70) for sweeping the seeds into elastic contact with the laid film (19).
The seeds (S) released onto the film (19) as the tractor moves forward are removed by the sweeper (70) from the seeding hole (18) of the film (19) into the furrower ( 1
Seed groove (G) provided on the seed bed (M) by 08)
This multi-seeder is characterized by being set so that it automatically sweeps the seeds inward. 2. The groove cutter (108) is formed into a sled shape or boat bottom shape extending along the lower surface of the film (19) so as to be in contact with the mulch film (19), and the groove cutter (108) and , and a pair of left and right coverrs (114) which are formed in the shape of a rod and which extend further rearward than the trencher (108), are assembled in advance, and a mounting bracket (88) is installed at the front end thereof as a pre-assembled unit. The grooves are connected to each other by a common rotation axis (91) for up-and-down movement, and the assembled unit of the trencher (108) and the earthcoverer (114) is always given downward downward ground contact force. The multi-seeder according to claim 1, characterized in that: