JPH0650961B2 - Multi seeder - Google Patents

Description

TECHNICAL FIELD The present invention relates to an improved multi-seeding machine for continuously and correctly sowing seeding holes of a multi-film laid in a state of covering a seed bed from above the film.

<Prior Art> As a device for seeding prior to the laying action of the film, in order to correctly match and match the seeding holes that are opened on the multi-film with a certain pitch between the front and back and the seeding positions for the seeding holes. Is, for example, Japanese Patent Publication No. 62-1660
No. 5 is known, and conversely, as an apparatus for continuously sowing after laying a film, for example, JP-A-62-28571 is known.
Issue 2 has already been proposed.

In the latter, which corresponds to the target model of the present invention, the seeding hole of the multi-film is structurally detected during the feeding operation from the reel, and the position is detected by the seeding sensor made of the spring material, and the seeding cylinder is normally closed. A certain seeding shutter is operated in an open state in which seeds can be dropped intermittently every time the position is detected.

<Problems to be Solved by the Invention> However, in the case of the above-mentioned known invention, it is necessary to correctly position the detection sensor on the front and rear centerlines of the seeding holes lined up in the multi-film in a scattered state. However, it is very complicated in the preparatory work, and this becomes remarkable especially when a plurality of seeding cylinders are installed in parallel as a multiple type.

Even if the positioning can be done correctly, since the multi-film consists of an extremely thin plastic film, which is usually about 0.2 to 0.3 mm, it is unrolled from the reel under the influence of various conditions such as climate and soil quality. During operation, slackness, wrinkles, and eccentricity are likely to cause an incorrect feeding posture. If this happens, the above-mentioned sensor malfunctions or becomes inoperative, resulting in inoculation unevenness.

Despite the ideal explanation of the publicly known invention, it is practically difficult to achieve the stable and reliable effect in a simple preparatory work.

<Means for Solving the Problems> The present invention is intended to solve such problems, and a perforated multi-film in which a large number of seeding holes are formed under a constant pitch between front and rear in view of the structure therefor. A film laying device that is continuously and sequentially laid out and laid in a state of covering the seed bed, and a seed feeding device that feeds out the seeds from the seed storage hopper and discharges the seeds onto the film through the seed dropping shoot, In a multi-seeding machine in which a seed feeding device is attached to a toolbar towed by a tractor so as to be movable in the left-right direction, a front end of a connecting arm integrally forwardly extended from a seed feeding box forming the seed feeding device. Part is connected to the bracket for attachment to the above-mentioned tool bar so that it can be undulatingly rocked by a horizontal pivot axis. Assemble a grooving device that gives a sowing groove to the seeding bed and a soil cover that covers the soil after seeding to the above-mentioned mounting bracket while also using the Axis as a unit, and integrate the grooving device and the soil cover together. While keeping it up and down, the sweeper for seed sweeping, which comes into elastic contact with the laid film, faces the position immediately after the seed drop chute that also forms the seed feeding device. The seeds released onto the film by the sweeper, from the seeding hole of the film, into the seeding groove provided on the seeding bed by the above-mentioned grooving device, the main feature is that it was set to sweep by itself. To do.

<Operation> According to the above configuration, the front end portion of the connecting arm in the seed feeding device with respect to the bracket mounted on the toolbar,
Speaking of a grooving device and a soil covering device, it is a common pivot axis,
Since it is assembled around the fulcrum so that it can move up and down, it can effectively follow the ups and downs of the sowing bed, and the seed drop chute that forms the seed feeding device can be installed in the grooving device or the soil cover. As a result, the perforated multi-films are kept in a state of being correctly juxtaposed to each other on the front-rear center line of the sowing holes that are scattered and opened.

Then, when it is advanced by the tractor, the multi-film is sequentially and continuously paid out from the film pay-out roll of the film laying device and laid in a covering state on the seed bed, while the seed paying device is continuously laid on the film after the laying. Where seeds are fed by the seed feeding roll of
Since the elastic sweeper is exposed immediately after the seed dropping chute, the seeds falling from the chute can be swept properly from the seed hole of the film to the seed groove of the seed bed by itself. It always has a stable seeding action.

<Examples> Hereinafter, the specific configuration of the present invention will be described in detail based on the illustrated examples.
In FIG. 2, (A) is a rotary cultivator towed by a tractor or other power machine not shown in the figure,
Terrain plate (12) attached to the rotary rear cover (11)
A pair of left and right cultivators (13) are attached to the frame member so that the width of the ridge can be adjusted to be wide or narrow.

(14) is a frame frame erected from the rotary tiller (A) in a rearwardly extending state, and has a generally torii shape in plan view, and left and right connected and fixed to both end positions of the rear portion. Each of the pair of stabilizer support frames (15) has a stabilizer
A column (17) of (16) is attached so as to be adjustable in movement along the front-rear direction and the up-down direction. By moving the stabilizing wheel (16) in the vertical direction, the tillage depth of the field by the rotary tiller (A) will be adjusted.

The film laying device (B) and the seed feeding device (C) that form the multi-seeding machine of the present invention are provided at the rear position of the stabilizing wheel support frame (15) as follows.

First of all, regarding the film laying device (B), this is sown by opening the seeding holes (18) to the seeding bed (M) which is formed into a trapezoidal shape in rear view by the cultivator (13). A film feeding roll (20) for automatically and continuously feeding a perforated multi-film (19), and a pair of left and right film pressing wheels (19) for pushing the fed film (19) into a state of covering the seedbed (M). 21) and a pair of earth-applying disks (23) for applying an appropriate amount of soil (22) to the left and right sides of the film (19) which has been pressed.

(24) is a pair of left and right extension side frames that are fitted and connected to the rear end of the stabilizing wheel support frame (15) so as to be movable in the front-rear direction, and the brackets (25 ), A film hanger bar (26) is fitted so that the film can be moved and adjusted in the left-right direction. (27) is a film hanger arm suspended from each of the hanger bars (26) so as to be adjustable in vertical movement, and at the midway position of the hanger arms (27), the film feeding roll ( 20) is mounted on the shaft, while the film guide rolls are also attached to the lower end positions of both hanger arms (27).
The support shaft (29) of (28) is also fixed horizontally.

The film feeding roll (20) is provided with the core tube (30) and the multi-film (19) pre-wound around the core tube (30), and the film (19) fed from this is free from the guide roll (28). By the rolling action, the film is smoothly guided rearward and downward, but at that time, when the film feeding roll (20) idles, the leopard,
It is given an appropriate braking force so that the film (19) is not loosened or pulled out as the tractor moves forward.

That is, as shown in FIGS. 6 to 8, the core tube (30) of the film feeding roll (20) is rotatably supported at both ends thereof via a pair of left and right conical pieces (31). The braking force by the compression coil spring (32) is applied from either one of them. (33) is a screw handle for roll pressing that is integrally extended in a horizontal state in which the film hanger arm (27) is loosely penetrated from one conical piece (31), and screwed in the middle part thereof. A compression coil spring (32) interposed between the adjusted nut (34) and the film hanger arm (27) is wound around the screw handle (33). The remaining conical piece (31) is fixed to the corresponding film hanger arm (27) by a support shaft (35) such as a bolt.

Therefore, as suggested by the comparison between FIG. 7 and FIG. 8, the adjustment nut (34) is preliminarily moved forward and backward along the screw handle (33) so as to be positioned, By changing the tension of the coil spring (32), the strength of the braking elastic force applied to the film feeding roll (20) can be adjusted.

In addition, regardless of the degree of adjustment, by pulling out the screw handle (33) laterally while resisting the tension of the coil spring (32), the two conical pieces (31) that are widened between the conical pieces (31) between the left and right sides are expanded. Therefore, the self-confidence of the film feeding roll (20) can be removed and replaced. Therefore, it can be said that, by removing the feeding roll (20), it can be used for so-called ordinary sowing work without laying the multi-film (19).

From the rear end of the extension side frame (24), refracting arms (36) each having a substantially V shape in a side view as shown in FIG. Each of the film pressing wheels (21) is rotatably supported.
The pressing wheel (21) is made of cushion material, and the film (19)
Works without damaging. (37) is the refraction arm (36)
A fulcrum fulcrum pin that connects the middle part of the film, and (38) are a pair of left and right raising and lowering rods that are erected so as to intersect with the middle part of the refraction. (21) has a moderate ground pressure.

Reference numeral (40) is a pivotal support pin between the bending arm (36) and the extension side frame (24), and the bending arm (36) with the film pressing wheel (21) can be folded up around it. ing. Reference numeral (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 FIGS. . From the mid-height position of the bending arm (36), the disk supporting arm (42) is also integrally projected toward the rear, and the pillar (43) of the above-mentioned earth gathering disk (23) is provided at the rear end thereof. ) Is also attached so that the movement in the vertical direction can be adjusted.

On the other hand, the extension center frame (44) is parallel to the stabilizer wheel support frame (15) and the extension side frame (24) from the center of the frame frame (14) located on the traveling center line of the tractor toward the rear. It has been dispatched to the suspension state. (45)
Is a hanger post for a toolbar integrally hung from a midway position of its extension center frame (44), which is made of a hollow square pipe material, and has a toolbar (46) for mounting the seed feeding device (C). Are horizontally suspended in a suspended installation state parallel to the rotation axes of the film feeding roll (20) and the film guide roll (28).

In other words, the tool bar (46) has an inverted T-shape when viewed from the rear, and the pillar (47) of the hollow square pipe material that stands upright from the middle part of the tool bar (46) is for the tool bar of the extension center frame (44). It is fitted and connected to the hanger post (45) so as to be adjustable in movement in the vertical direction. (48) is a fixed nut that is enclosed and integrated in the support rod (47) of the toolbar (46), and (49) is a screw nut that keeps the nut (48) in the support rod (47) from above. This is a screw handle for adjusting the installation height inserted in the. The rotation height of the screw handle can change the installation height of the toolbar (46).

As is clear from FIG. 3, the toolbar (46) faces the position just before the film feeding roll (20), and the seed feeding device (C) has a plurality of multiple types and is arranged at regular intervals. Are installed in parallel.

Next, each of the seed feeding devices (C) will be explained. As shown in FIGS. 5 and 9 to 11, this is preferably a transparent seed storage hopper (50) and a lid for covering the bottom of its opening. The seed feeding roll (51) which is mounted on the shaft, and the grounding drive which drives the feeding roll (51) to rotate by being attached to one end of the rotary support shaft (52) which further horizontally extends through the feeding roll (51). The drop assembly (54) of the seeds (S) fed out by the feeding roll (51) together with the wheel (53) has been pre-assembled into a unit, and is always lowered from the hopper (50). It is suspended in an inclined installation state.

The above-mentioned hopper (50) has a funnel shape in side view, and as far as it is possible, it may be made as an integral body as a whole, but in the case of the illustrated example, this is separated from the lower seed feeding box (55). After being created independently, they are assembled in such a way that they communicate with each other. The seed feeding roll (51) is exposed so that the feeding box (55) is covered from below.

(56) is a seed feeding concave groove provided on the circumferential surface of the feeding roll (51), (57) is a seed (S) received in the concave groove (56)
It is an elastic scraper for metering of the above-mentioned feeding box (5
To the front end surface of (5) via a butterfly bolt (58), etc.
It is mounted so that it can be moved back and forth toward the circumferential surface of 1).
Similarly, (59) is a cover plate fixed to the rear wall surface of the feeding box (55) by screws (60) or the like, forming a front-rear pair with the above-mentioned metering scraper (57) and replacing them with each other. You can also do it. The front wall surface and the rear wall surface of the feeding box (55) covered by these have a substantially symmetrical shape, and the butterfly bolt
The screw holes for receiving the screws (58) and the screws (60) are correspondingly opened so as to have a size matching each other. Incidentally, (61)
Is an opening / closing cap for the hopper (50).

The seed feeding roll (51) and its rotation support shaft (52) are in an assembled state in which they rotate integrally with each other, and can be relatively inserted and removed, and a horizontal penetrating state in which the seed feeding roll (51) is horizontal to the feeding box (55). The ground drive wheel (53) of the seed feeding roll (51) is fitted to the exposed one end portion of the rotation support shaft (52) which is received as a bearing. The grounding drive wheel (53) is made of an elastic material on its circumferential surface and rolls on the film (19) without damaging it, thereby flattening the film (19) into a close contact with the seed bed (M). At the same time, the seed feeding roll (51) is rotated.

The seed feeding roll (51) has its rotation spindle (52) as described above.
Although it can be extracted and replaced relatively with
As a configuration for that, as shown in the figure, the seed feeding box
Only the side wall of either side of (55) should have a cylindrical bearing wall plate (6
If the seed feeding roll (51) is supported in a so-called cantilever state by the rotation support shaft (52) penetrating and laterally extending through the bearing wall plate (62), the rotation support shaft is formed. It is not necessary to pull out (52) from the feeding box (55) one by one and disassemble it, and to insert and remove the seed feeding roll (51) from one side in the open state where the feeding box (55) remains open to the rotating spindle (52). It can be said that it is more beneficial because it can be done.

Also, the seed feeding roll (51) and its rotation support shaft (52), as long as they are in a fitted state in which they rotate integrally with each other, the fitting surface is formed as a square cross section or a spline, or a key along the rotation axis direction. In particular, the key pin (63) as shown in the figure is skewed and penetrated along the diametrical direction of the rotary support shaft (52), and the key hole (64) of the pin (63) is inserted. ) Is formed on the seed feeding roll (51) as an opening, not only the feeding roll (51) can be integrally rotated by their mutual locking action, but also the rotation spindle (52) has the feeding box (55). It is even more rational in that the key pin (63) can also prevent the bearing wall plate (62) from coming out laterally outward.

The seed dropping chute (54) has a substantially gutter-shaped cross section with a constant opening width facing the circumferential surface of the seed feeding roll (51) from below, and the rotation axis of the feeding roll (51) is used as a pivot point. ,
It is designed to rotate up and down.

That is, although the reference numeral (65) is a hanger stay for the seed drop chute (54), as is clear from FIGS. 9 and 11, it has a generally L-shaped rear view and its horizontal shape. Mounting piece (66) with one end protruding from the bottom wall of the shout (54)
While fixed and integrated with screws (67),
Similarly, the other vertical end of the hanger stay (65) is attached to the mounting boss (6
As 8), it is fitted into the cylindrical bearing wall plate (62) protruding downward from the seed feeding box (55) so as to be rotatable and detachable.

And, as described above, in the center of the bearing wall plate (62), the rotation support shaft (52) of the seed feeding roll (51) is pierced horizontally, so that the shout (54) is attached to the support shaft ( It is possible to perform an undulating rocking action around 52). It is needless to say that the rotation spindle (52) is located on a symmetrical virtual vertical center line (V-V) that bisects the seed feeding box (55) in the front and back, as suggested by FIG. Yes.

Although it was mentioned above that the seed drop chute (54) was always suspended in the inclined installation state of falling backward, the sweeper mounting base (69) was transversely attached to the rear end of the seed drop chute (54) and fixedly integrated by welding or the like. There is. However, its mounting base (69)
Needless to say, the rear end of the shout (54) is in an open state where the seeds (S) can fall, when attached.

At this point, as shown in FIGS. 12 to 15, the bottom wall surface of the shout (54) is bent into a substantially V-shape in rear view, which gradually becomes deeper toward the rear end, and the seed ( While maintaining the drop action length (L) of S) constant, the above-mentioned rearwardly downward inclined installation angle (which may be rephrased as the crossing angle with the seed bed or the multi-film) (α) as much as possible. If it is set as a steep angle (a large acute angle in side view), the dropping action of the seed (S) can be further promoted, which is remarkably beneficial.

(70) is seed (S) into seeding hole (18) of multi-film (19)
An elastic sweeper that sweeps in, preferably made of synthetic resin brush bristles, and the flocking bracket (71) is attached to the mounting base (69) of the shout (54) by a butterfly bolt (72) or the like. It is detachably attached. (73)
Is a screw hole provided in the mounting base (69), and (74) is an elevating guide elongated hole opened in the holding bracket (71) of the sweeper (70) so as to correspond to the screw hole (73). By doing so, the installation height of the sweeper (70) with respect to the seed bed (M) can be adjusted, and further, the sweeper (70) can be replaced as it is by turning the brush bristles upward. .

If the brush bristles of the sweeper (70) are reattached in an inverted state or removed from the mounting base (69) of the shout (54), the multi-film (19) as shown in FIGS. 19 and 20 is not laid. Normal sowing work can be performed without any problems. At this time, the film feeding roll (20) may be removed as described above.

When such a normal sowing operation is performed, the grounding drive wheel (53) of the seed feeding roll (51) may be replaced by a spike (instead of the elastic material on the circumferential surface as shown in FIG. 19). It is advantageous to replace the seed 75, which is formed by overhanging, and attach it to the rotary support shaft 52 in the same manner as above to achieve prevention of idling of the seed feeding roll 51. .

Moreover, the brush bristles of the sweeper (70), which are among the brush bristles (71), are curved due to the bending of the mouthpiece portion, so that
It is shaped like a U-shaped or V-shaped bottom view with the front open as shown in the figure, and sows the film (19) while catching the seeds (S) falling from the shout (54) quickly and reliably. It can be swept into the hole (18) by itself.

In order to more completely prevent the seeds (S) from rolling off on the film (19), an elastic cover (76) such as sponge or felt as shown in FIGS. 9 and 10 is attached to the sweeper (70). It is preferable to additionally install at the position immediately before. It is also conceivable to omit the combined use of the separate cover (76) and form the brush bristles themselves of the sweeper (70) into an endless annular shape in bottom view.

In the case of the example shown in the figure, the bracket (77) with the cover (76) attached is integrated with the mounting base (6) of the shout (54).
9) and the bracket (71) of the sweeper (70) are intervened between the front and rear, and the mounting base is also used as the butterfly bolt (72).
To (69), they are fastened and fixed together at once. By the elastic cover (76) and the sweeper (70), the seeding hole (18) of the film (19) is set so as to completely surround it as shown in FIG. Reference numeral (78) indicates a bolt receiving hole opened in the bracket (77) of the cover (76).

(79) is an oscillating rod erected from a position near the rear end of the seed drop chute (54), and the compression coil spring (80) is wound around the seed rod so that the sweeper (70) and the elastic cover are covered.
The film (76) acts on the film (19) of the seed bed (M) under the proper elastic pressure. The rocking rod
The lower end of (79) is bent into an L-shape when viewed from the rear, and is laid horizontally through the shout (54) in a stable pivotal state, while the upper end of the swing rod (79) is also Seed feeding box
(55) To the bearing boss (81b) protruding from the rear wall,
It is connected and held via (82). The pivot pin (82) can be inserted into and removed from the bearing boss (81b).

In that case, the bearing boss (81b) of the seed feeding box (55) that receives the pivot pin (82) is a pair of upper and lower,
As indicated by another reference numeral (81a) in FIGS. 9 and 10, it is also integrally projected from the front wall surface of the feeding box (55), and the pair of front and rear bearing bosses (81a) (81b) are provided. They are arranged symmetrically with each other. The pivot pin (82) holding the upper end of the rocking rod (79) is passed through the bearing boss (81b) located on the lower side of the rear side.

The seed drop chute (54) is capped with a transparent protective cover (83) as suggested by the chain line in Figs. 12 to 15 to prevent rainwater, earthen clods, and other obstacles from entering. You may. It is also conceivable to make the shout (54) itself in the shape of a hollow pipe based on the same purpose.

Reference numeral (84) is a connecting arm of the seed feeding device (C) to the tool bar (46), which is bent in a side view such as an inverted U shape straddling the film feeding roll (20), and has a rear end portion thereof. The bracket (85) integrally attached to is fixed to the front bearing boss (81a) of the seed feeding box (55) by a pair of upper and lower fixing pins (86). The fixing pin (86) can also be inserted into and removed from the bearing boss (81a), like the pivotal support pin (82) of the swing rod (79). Moreover, the fixed pin (86) and the pivot pin (82) can also be inserted through the bearing bosses (81a) (81b) in front and rear pairs interchangeably.

In this way, a plurality of bearing bosses (81a) (81b) are projected from the seed feeding box (55) as a front-rear symmetrical arrangement type, and the fixing pin (86) and the pivot pin (82) are provided in front and rear pairs respectively. If it is determined that the seed feeding rolls (51) are supported in a so-called cantilever state by the rotation support shaft (52) with the above-mentioned ground drive wheel (53), the rotation support shaft (52) )
Being able to remove and insert from the seed, seed drop chute (54)
Combined with the fact that the hanger stay (65) can be inserted into and removed from the cylindrical bearing wall plate (62) of the feeding box (55),
The seed feeding device (C) is a multi-tool bar (46)
When the seed feeding device (C) is installed in parallel, the interim feeding box (55) of the seed feeding device (C) can be used as it is, without any trouble, by changing the direction as it is. When changing the direction, the seed feeding roll
The (51), its ground drive wheels (53), the seed drop chute (54), the rocking rod (79), etc. are also changed to the feeding box (55).

By doing so, as suggested from FIG. 4, the plurality of seed feeding devices (C) can be kept in a suitable weight balance state symmetrical with respect to the traveling center line of the tractor,
The ground drive wheels (53) also extend laterally outward from the left and right shoulders of the seed bed (M) without floating, and the seed feeding roll (51) can always be reliably driven to rotate inside (facing the centerline of progress). It has the effect that it can be placed in parallel as a state of installation inward).

On the other hand, by welding etc. to the front end of the connecting arm (84),
The shaft cylinder (87) is fixed and integrated in a horizontal horizontal state. (8
8) is a mounting bracket which is fitted in the tool bar (46) so as to be movable in the left-right direction, and is made of a short hollow square pipe material, and its front wall surface is connected as shown in FIG. 21. A pair of left and right ear pieces (8) that sandwich the barrel (87) of the arm (84).
9) is projected forward and integrally. (90) is a shaft receiving hole opened at the upper position of both ear pieces (89),
A horizontal pivoting shaft (91) that is now passed through the barrel (87)
The connecting arm (84) is rotatably and rotatably connected to the mounting bracket (88).

In other words, the seed feeding device (C) faces the multi-film (19) laid on the seed bed (M) and is positioned immediately after the film feeding roll (20) so as to continue the seeding action. In addition, by moving and adjusting the mounting bracket (88) along the tool bar (46), the seedling holes (18) scattered in the film (19) are moved to the front-rear center line (Y-Y). The positioning set can be performed in order to properly match and match the interim seed drop shorts (54) of the various child feeding devices (C).

(92) is a mounting bracket (88) for its toolbar (46)
It is a screw handle for positioning adjustment of the bracket (8
8) A screw hole (93) opened in the upper wall surface is screwed in from above so that it can move back and forth. (94) is its screw handle (92)
It is an engaging cam plate inserted between the upper and lower parts of the neck part of the bracket and the mounting bracket (88), and has a generally fan-like shape in plan view. Penetration screw handle
It can also be rotated horizontally with the shaft leg of (92) as a pivot point.

(96a) (96b) (96c) are three types of engagement notches provided in the front edge of the cam plate (94), and as is clear from FIGS. (96a) has a hook shape in plan view in which the front is blocked, whereas the second engagement notch (96b) continuous with this is in the front open state. Moreover, the first and second engagement notches (96a) and (96b) are arranged on the turning loci of the same radius dimension (R1) centering on the pivot point.

Further, the remaining third engaging notch (96c) is the first and second engaging notch (96a) (9
Both engaging notches (96a) (96b) while being located on another rotation locus with a radius dimension (R2) longer by a certain dimension (W) than 6b).
It is classified as a non-continuous state. And, since all of the first to third engaging notches (96a) (96b) (96c) are engaged so as to be engageable and disengageable with the particularly rising middle part of the connecting arm (84). is there.

That is, the connecting arm (84) is connected to the attachment bracket (88) to the tool bar (46) via the pivot shaft (91), so that the entire seed feeding device (C) is sown on the seed bed (M). As described above, the oscillating action is performed by following up and down, but when the connecting arm (84) is engaged with the third engaging notch (96c) of the cam plate (94), Since the 3 engagement notch (96c) is arranged on the rotation trajectory of the long radius dimension (R2), the 24th,
As shown in FIGS. 26 and 27, the seed feeding device (C) slightly floats above the seed bed (M).

On the other hand, the connecting arm (84) is connected to the first engaging notch (96) of the cam plate (94).
When engaged with (a), the first engaging notch (96a) exists on the rotation trajectory of the short radius dimension (R1), so that the seed feeding device (C) can perform its sowing action without any trouble. In this state, the seeding bed (M) is grounded, but the first engaging notch (96a) has a hook shape that is constrained in front of it. , Connecting arm
The pivoting action of (84) toward the front is fixedly locked, and the seed feeding device (C) is kept incapable of the overall swinging action.

Then, to the second engagement notch (96b) in the front open state,
Only when the connecting arm (84) is engaged as shown in FIG. 22, the seed feeding device (C) performs an overall rocking action so as to follow the ups and downs of the seed bed (M). Therefore, it is used for seeding work in such a state.

The above-mentioned three kinds of actions are to rotate the cam plate (94) horizontally around the fulcrum of the screw handle (92), and at that time, lift the seed feeding device (C) as necessary, and the first to third functions thereof. Joint cutout (96
By selectively engaging and disengaging a) (96b) (96c) and the connecting arm (84), it is possible to switch to a so-called one-touch type. Reference numeral (97) is a compression coil spring for locking the rotation of the cam plate (94), and is inserted between the neck portion of the screw handle (92) and the cam plate (94) vertically. . If the elastic force of the coil spring (97) that pushes down and fixes the cam plate (94) is released by screwing back and forth of the screw handle (92), the cam plate (94) is horizontally rotated as described above. It can be done.

Connecting arm (84) to the first engaging notch (96a) of the cam plate (94)
By engaging with, the whole seed feeding device (C) can be fixedly locked in a state in which it does not oscillate undulatingly. Therefore, when the multi-seeding machine is lifted by a tractor and traveling on a general road, etc. , Rattling of seed feeding device (C) with respect to the toolbar (46), and various child feeding devices (C)
It is possible to effectively prevent an accidental drop of the.

Similarly, if the connecting arm (84) is engaged with the third engaging notch (96c) of the cam plate (94), the entire seed feeding device (C) is indicated by the chain line in FIG. 27. Seeding bed (M)
Since it can be intentionally held in such a state that it floats by a certain height (H) from above, when a plurality of them are installed in parallel on the toolbar (46) as a multiple type, any seed feeding device (C ), It is possible to quickly respond to changes in the number of rows of seeding work and the spacing between adjacent rows. When the number of rows is changed, it is not necessary to extract only the seed feeding device (C), which is unnecessary in use, from the toolbar (46) laterally outward.

Further, (98) is a mounting bracket (8
It is a hanger stay for a groover that is also used for the pivot axis (91) of the connecting arm (84) for 8) and is also rotatably connected to the protruding ear piece (89) of the mounting bracket (88). As shown in FIGS. 21, 25, and 26, it has a substantially L shape in a side view. (99) is a pair of left and right projecting tongues integrally attached to the vertical upper end of the hanger stay (98), and corresponds to the projecting ear pieces (89) of the mounting bracket (88), This includes a communication hole (1
00) has an opening.

Reference numeral (101) is a fool hole which is opened at the lower end portions of the projecting ear pieces (89) of the mounting bracket (88), and a rod receiving pin (102) is horizontally extended through the rod receiving pin (102).
(103) is a stupid hole formed through the center of the pin (102), and (104) is a stupid hole opened at the center of the upper end of the hanger stay (98) so as to correspond to this. An advancing / retreating rod (105) for adjusting the ground pressure is pierced through the both fool holes (103) and (104) in the front-rear direction so that the rod can be moved forward and backward. In other words, the midpoint height position of the hanger stay (98) for groovers, which is suspended from the pivot axis (91), is stably supported by the advancing / retreating rod (105).

(106) is the retractable rod (105) rear end head and hanger stay (9
8) A compression coil spring wound around the advancing / retreating rod (105) while intervening between the advancing / retreating rod (105) and rotating the adjusting nut (107) screwed to the front end screw part of the advancing / retreating rod (105). Then
By adjusting the tension of the compression coil spring (106) by screwing the advancing / retreating rod (105) forward and backward, the ground contact pressure of the grooving device (108) with respect to the seed bed (M) changes strongly. .

As shown in FIGS. 28 and 29, the grooving device (108) has a sled shape or a boat bottom shape that smoothly bends as a whole,
Its front end is attached to the lower end of the hanger stay (98) for the grooving tool by a butterfly bolt (109) or the like, and along the lower surface of the above-mentioned multi-film (19), and the seed drop chute (54). It has been extended to the position just after. (110) is a butterfly bolt opened in the hanger stay (98)
The receiving screw hole of (109) is shown. Then, as the tractor advances, the grooving device (108) gives a sowing groove (G) having a constant band width to the sowing bed (M).

Moreover, the grooving device (108) is formed in a substantially U-shaped cross section having a pair of left and right horizontal protruding brim pieces (111), and as shown in FIGS. Both collar pieces
The (111) makes surface contact with the film (19) without damage and also stably supports the brush bristles of the sweeper (70) and the cover (76) from below.

(112) is a strip-shaped seed discharge port cut out on the rear bottom surface of the grooving device (108), and is kept in a state of being in proper communication with the rear end of the seed drop chute (54). . Due to the notch of the seed discharge port (112), the pair of left and right hanging pieces (113) remaining in the grooving device (108) having a substantially U-shaped cross section is used as a seed embankment groove (G). It helps to remove soil to prevent subsequent intrusion.

Further, (114) is an earth covering device which is previously attached to the grooving device (108) and is made into a unit attached to the grooving device (108). It is fixedly integrated with the front end by welding. In that case, so that the hanger stay (98) for the grooving machine is received between the left and right of both round bar materials,
The hanger stay (98) and the grooving device (108) are connected and fixed in a positioning-restricted state in which the horizontal swing does not occur as shown in FIG.

Then, the earthen cover (114) is gradually widened from the middle part thereof, and along the diagonally lower sides of both the protruding brim pieces (111) of the grooving device (108), the muller (108) is deeper than the grooving device (108). It extends long backwards. As a result, the rear end of the soil cover (114) is provided with appropriate elasticity as a so-called free end, and the pair of left and right free ends has an inwardly-oriented substantially horizontal bending piece (115). ), The seed (S) after sowing can surely cover the soil by itself.

As is apparent from the above description, the connecting arm (84) of the seed feeding device (C) to the toolbar (46) and the soil cover (114).
The unitized grooving device (108) is attached to the common mounting bracket (88) so that the mounting bracket (88) can be moved left and right along the toolbar (46). Then, by positioning and fixing with the screw handle (92), the seed feeding device (C) and the grooving device (108).
As a whole unit with the above, on the center line (Y-Y) of the front and rear of the sowing holes (18) scattered in the multi-film (19), a so-called one-touch operation at the same time, and by itself, correct correspondence. It can be installed.

In addition, under the above-mentioned relational condition, the pregrooving device (114) is assembled into a unit to the grooving device (108), and the front end portion thereof is combined with the hangar stay (98) for the grooving device. The hanger stay is suspended from the mounting bracket (88) via a pivot shaft (91) so that it can oscillate freely.
Since the grounding pressure of the compression coil spring (106) acts on the whole by the advancing / retreating rod (105) penetrating the middle part of (98), even if the grounding pressure is adjusted strongly, Since the precise relationship between the groove device (108) and the soil cover device (114) is always kept constant, the multi-seeding work can be properly and stabilized as a whole in that sense.

Further, (116) is a hanger frame for the compression roller that is extended in a suspended state from the extension center frame (44) toward the rear, and as shown in FIGS. It has an overall inverted L-shape in side view with an extension mast (117) attached. Reference numeral (118) is a pivot pin which is located slightly rearward of the hanger post (45) of the toolbar (46) and which is pierced horizontally in the middle of the extension center frame (44).
By attaching the front end of 6), the hanger frame (116) can perform an oscillating action around the pivot pin (118).

Reference numeral (119) is a support pin fixed and laterally mounted on the rear end portion of the extension center frame (44) so as to receive the middle portion of the crusher roller hanger frame (116), and has an inverted T-shape in rear view. The compression coil spring (120) wound around the screw shaft portion that stands up as the penetrating state of the hanger frame (116) allows a proper ground pressure to be applied to the entire compression roller to be described later. ing. Reference numeral (121) is an adjusting nut for adjusting the tension of the coil spring (120) strongly, and is screwed from above onto the screw shaft portion of the support pin (119).

The extension mast (117) is fitted to the hanger frame (116) so as to be adjustable up and down, and its positioning fixing pin (122).
Is assembled by. Reference numeral (123) is a rotation angle adjusting plate integrally projecting rearward from a lower end portion of the extension mast (117) of the hanger frame (116) and has a side view substantially fan shape.

(124) is a rotation center hole opened in the main part of the adjusting plate (123).
The adjustment plates (1a, 125b, 125c) are arranged so that they are scattered from the center hole (124) on a virtual rotation locus keeping a constant radius.
23) is a plurality of adjustment holes opened around the arc, and the rotation angle range (β) of the entire adjustment holes (125a) (125b) (125c) is set to about 90 degrees in advance. ing.

Reference numeral (126) is a pressure roller operating strut formed in a fork-shaped fork sandwiching the adjusting plate (123), and a pair of left and right pressure roller support shafts (127) are integrally formed laterally from the lower end thereof. , And they are projected in a relational state in which they cross each other at a constant angle (γ). That is, the operation column (126) integrally attached to both the support shafts (127) is formed into a substantially inverted Y shape in rear view as a whole, and the support shafts (127)
The compression rollers (128) are respectively fitted in freely and freely so that they can be inserted and removed.

The operation column (126) of both the pressure suppression rollers (128) has a rotation angle selection hole (129) that selectively matches the adjustment holes (125a) (125b) (125c) of the adjustment plate (123). Similarly, since the upper and lower pairs of the pivot hole (130) corresponding to the central hole (124) of the adjusting plate (123) are formed, the adjusting pin (131) and the fixing pin (13) are formed in these openings.
The compression roller (128) can be stably and rigidly attached to the extension mast (127) of the hanger frame (116) by horizontally passing through a pair of the upper and lower sides of (2).

Incidentally, (133) is a handle extended from the upper end of the operation column (126), and (134) is a scraper for a compression roller which is also extended from the operation column (126) in a left-right distribution state.

Then, the selection hole (129) of the operation support (126) and the adjustment plate
The adjustment pin (131) penetrating over the adjustment holes (125a) (125b) (125c) of (123) is inserted and removed, and the operation column (126) is moved within the rotation angle range (β) of about 90 degrees. In Fig. 35 (I), the pair of left and right repression roller support shafts (127) is rotated in Fig. 35 (I). In a plan view, they are correctly aligned on the same line (ZZ) and in a relational state in which they cross the mountain shape in the rear view as shown in Fig. 36 (I), and the seedbed is sown by both pressure rollers (128). (M) is shaped into a mountain ridge, and at the same time, the seedbed (M) is multi-filmed (19).
Can be brought into close contact as an overall tension without wrinkling.

On the other hand, as shown in FIG. 34 (II), when the operation support column (126) is positioned and fixed in a substantially horizontal lying position in a side view,
The pair of left and right compression roller support shafts (127) are shown in Fig. 36 (II).
When viewed from the rear as shown in FIG. 35, the two rollers are properly aligned on the same horizontal line (XX) and crossed in the backward mountain shape in plan as shown in FIG. 35 (II). ), The seedbed (M) is shaped like a flat ridge, and at the same time, the film (19) is brought into close contact with the seedbed (M) as a general tension state, so that a suitable squeezing action can be performed. Of.

<Effects of the Invention> As described above, in the present invention, a multi-film perforated film (19) having a large number of seeding holes (18) having openings formed at regular front and rear intervals is continuously fed out and seeded successively. A film laying device (B) laid in a state of covering the floor (M) and seeds (S) are fed out from the seed storage hopper (50),
A seed feeding device (C) for discharging the seed dropping shout (54) onto the film (19), and extending the seed feeding device (C) in a horizontal direction to a toolbar (46) towed by a tractor. Seed payout box (55) forming the seed payout device (C) in a multi-seeder mounted for adjustable movement.
The front end of the connecting arm (84) that is integrally extended forward from the front to the mounting bracket (88) on the toolbar (46) by the horizontal pivoting shaft (91) to oscillate. The mounting bracket (88), which is connected as much as possible and doubles as the pivot shaft (91)
Groover (1) that gives seeding groove (G) to seeding bed (M)
08) and the soil-covering device (114) that covers the soil after sowing are also assembled into a unit to keep the grooving device (108) and the soil-covering device (114) in an ups and downs motion as well as seed feeding. Seed Drop Shout (5) Forming Device (C)
Immediately after step 4), face the seed sweep sweeper (70) that comes into elastic contact with the laid film (19), and it is discharged onto the film (19) as the tractor advances. The seeds (S) are taken from the film (1) by the sweeper (70).
Since it is set so that it can be swept from the seeding hole (18) of 9) into the seeding groove (G) provided to the seeding bed (M) by the grooving device (108), the beginning of It is possible to solve the problems of the prior art described in 1 above, without requiring a mechanical or electrical position detecting sensor member for the seeding hole (18), under the extremely easy preparatory work, and surely correct by itself. Film (1
Seeds (S) can be sown into the sowing holes (18) of 9).

That is, in the case of the present invention, the seeds (S) are dropped and released onto the film (19) after being laid so as to cover the seed bed (M), and the seeds (S) are continuously seeded in the seed holes (18) of the film (19). ) Is swept by an elastic sweeper (70), and in particular, the sweeper (70) faces the position immediately after the seed drop chute (54) forming the seed feeding device (C), and therefore the film (19). ) The seeds (S) that have been released and dropped onto the film (19) are quickly and reliably captured by the sweeper (70) without any time allowance to escape to the left and right, and roll away.
Since it can be swept into the seeding hole (18) of the plant without omission, the seeding effect is remarkably excellent.

Further, the connecting arm (84) of the seed feeding device (C) equipped with the seed drop chute (54) and the sweeper (70) is moved to the toolbar (46) by the horizontal pivot shaft (91) at its front end. The mounting bracket (88) is also connected to the mounting bracket (88) of (1) and also serves as the rotation pivot (91), and the grooving device (108) and the soil cover (114) are also assembled into a unit. Since the seed feeding device (C), the grooving device (108), and the soil cover (114) are struck by the rocking motion of the rotating pivot shaft (91) as a fulcrum. Seeding bed (M)
Effectively follows the ups and downs of the plant and helps the stability of its seeding action.

Moreover, the seed feeding device (C), the grooving device (108), and the soil cover (114) are wholly simultaneously moved by the common pivot axis (91) and before and after the seeding hole (18) in the film (19). It can be installed in the toolbar (46) in a so-called one-touch operation as a relational state in which it corresponds to the center line (Y-Y) correctly, which is great for multiple seed feeding devices (C). Be beneficial.

Further, the grooving device (108) is formed into a sled type or a boat bottom type extending along the lower surface of the film (19) so as to make contact with the multi-film (19). , A pair of left and right sandwiching this
(108) Rod-shaped earthenware that extends longer than the rear
(114) is connected to the mounting bracket (88) at its front end as a prefabricated assembly unit so as to oscillate by a common pivoting shaft (91), and its grooving device (108). In the assembly unit body of the and earthenware (114),
If you want to apply a downward ground contact pressure at all times,
08) and soil cover (114) as a pre-assembled unit body,
Regarding the undulating motion with the pivot axis (91) as a fulcrum, for example, even if the ground contact pressure of the descending ground is adjusted, or even when there is a change in the soil condition, the undulating motion is always united. It can be said that it is more and more profitable in that it can be stabilized as a constant action to be executed, and that although it is simple and sufficient as the necessary configuration, it is possible to obtain both the suitable action of the trench and the soil cover.

[Brief description of drawings]

FIG. 1 is an overall schematic perspective view of a multi-seeding machine according to the present invention,
FIG. 2 is a schematic side view of the same, and FIG. 3 is a side view showing an arrangement relation state of the film laying device and the seed feeding device,
FIG. 4 is a rear view showing a state in which seed feeding devices are installed in parallel, FIG. 5 is a perspective view showing the seed feeding device in an extracted state, and FIG. 6 is a perspective view showing an installation state in which a film laying device is extracted.
FIGS. 7 and 8 are front views showing the adjustment states of the braking force of the film feeding roll in comparison, FIG. 9 is an exploded perspective view of the seed feeding device, and FIGS. 10 and 11 are part of the seed feeding device. Cutaway side sectional view and sectional rear view, twelfth, first
FIG. 3 is a plan view and a rear view showing the seed drop chute extracted, and FIGS. 14 and 15 are lines 14-14 and 15 in FIG.
Each sectional view along the line -15, FIG. 16 is a perspective view showing the elastic sweeper of the seed, FIG. 17 is a plan view showing the state of the working relationship between the sweeper and the seed hole of the film, and FIG. 18 is the same as the sweeper. FIG. 19 is a plan view showing a state of arrangement relationship with an elastic cover, FIG. 19 is a side view showing a non-multi-seeding action state corresponding to FIG. 3, and FIG. 20 is an enlarged sectional view taken along the line 20-20 of FIG. FIG. 21 is an exploded perspective view showing the installation relation state of the connecting arm and the grooving device with respect to the bracket for attachment to the toolbar, FIG. 22 is an enlarged sectional view taken along the line 22-22 of FIG. 3, and FIGS. FIG. 25 is a sectional plan view showing a fixed set state in which the seed feeding device corresponding to FIG. 22 is not swingable and a floating set state from the seed bed, and FIG. 25 is a sectional view taken along line 25-25 in FIG. 23. FIG. 26 shows the line 26-26 in FIG. 24. FIG, 27 figures also overall side view suggests floating excisional state seed feeding device, first 28, 29
The figure is a perspective view of the assembly unit of the grooving device and the soil cover seen from both front and back sides, Fig. 30 is an enlarged sectional view taken along the line 30-30 of Fig. 3, and Fig. 31 is a sowing concave by the grooving device. FIG. 32 is a cross-sectional rear view showing a groove applying action state, FIG. 32 is a cross-sectional rear view showing a soil covering action state of a seed by a soil cover, and FIG. 33 is an exploded perspective view showing an installation state of a compression roller, FIG. 34 (I). (II)
Is a side view showing the angle changing state of the compression roller in contrast,
FIGS. 35 (I) (II) and 36 (I) (II) are a plan view and a rear view corresponding to FIGS. 34 (I) (II), respectively. (18) …… Seeding hole (19) …… Multi-film (46) …… Toolbar (50) …… Seed receiving hopper (55) …… Seed feeding box (70) …… Elastic sweeper (84) …… Connecting arm (88) …… Mounting bracket (91) …… Rotating pivot (108) …… Grooving device (114) …… Soil cover (A) …… Rotary tiller (B) …… Film laying device (C)… … Seed feeding device (M) …… Seeding bed (S) …… Seeds

Claims (2)

[Claims] 1. A state of covering a seed bed (M) by continuously and continuously feeding out a perforated multi-film (19) in which a large number of seed holes (18) are formed at regular front and rear pitches. The film laying device (B) to be laid on the seeds and the seeds (S) are fed from the seed storage hopper (50),
A seed feeding device (C) for discharging the seed dropping shout (54) onto the film (19), and extending the seed feeding device (C) in a horizontal direction to a toolbar (46) towed by a tractor. Seed payout box (55) forming the seed payout device (C) in a multi-seeder mounted for adjustable movement.
The front end of the connecting arm (84) that is integrally extended forward from the front to the mounting bracket (88) on the toolbar (46) by the horizontal pivoting shaft (91) to oscillate. The mounting bracket (88), which is connected as much as possible and doubles as the pivot shaft (91)
Groover (1) that gives seeding groove (G) to seeding bed (M)
08) and the soil-covering device (114) that covers the soil after sowing are also assembled into a unit to keep the grooving device (108) and the soil-covering device (114) in an ups and downs motion as well as seed feeding. Seed Drop Shout (5) Forming Device (C)
Immediately after step 4), face the seed sweep sweeper (70) that comes into elastic contact with the laid film (19), and it is discharged onto the film (19) as the tractor advances. The seeds (S) are taken from the film (1) by the sweeper (70).
It is characterized in that it is set so that it can be swept from the seeding hole (18) of 9) into the seeding groove (G) provided to the seeding bed (M) by the grooving device (108). Multi seeder. 2. The grooving device (108) is formed into a sled shape or a boat bottom type extending along the lower surface of the film (19) so as to make contact with the multi-film (19), and the grooving device ( 108) and a groover as a left and right pair sandwiching this
(108) Rod-shaped earthenware that extends longer than the rear
(114) is connected to the mounting bracket (88) at its front end as a prefabricated assembly unit so as to oscillate by a common pivot shaft (91), and its grooving device (108). In the assembly unit body of the and earthenware (114),
The multi-seeding machine according to claim 1, characterized in that a downward ground contact pressure is always applied.