JPH07110165B2 - Seed feeding device of multi-seeding machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a seed feeding device for a multi-seeding machine.

<Prior art> As a multi-seeding machine that sows seeds correctly after laying the film in the sowing holes that are dotted and opened in the perforated multi-film, for example, Syokai 63-10823 and 63-10824 are available. It has been proposed and it is also known to install the seed dispensers of such a multi-seeder in multiple, side-by-side arrangements on a toolbar towed by a mobile machine such as a tractor.

<Problems to be Solved by the Invention> However, in the above-mentioned known invention, especially, No. Shokai 63-10824,
The feeding rolls of the seed feeding device (16), which are installed in parallel in a multiple manner, use the power taken from the compression wheel (17),
The plurality of them are driven to rotate at the same time. That is, since the plurality of seed feeding rolls are rotated by the common long rotation spindle, the seed feeding groove on the circumferential surface of the seed feeding roll is changed depending on the kind or size of the seed. When it is desired to replace various different delivery rolls, the rolls have to be pulled out laterally one by one along a long rotation spindle, which is extremely complicated in terms of work.

In this respect, as in Japanese Utility Model Publication No. 44-26097, a short rotation shaft (9) of the seed feeding roll (4) is laterally outward from the side walls (6) (6) of the lower funnel portion of the seed storage tank (3). ) (9 ') can be said to be known, but in this case, the feeding roll (4) and its rotation support shafts (9), (9') are integrated, and the side walls (6), (6) are connected to each other. Since it penetrates through, the sprocket (wheel for power transmission) (10) also has the rotation support shafts (9), (9 ') in the above extraction work.
Has to be removed from the
It is impossible to quickly and lightly replace the minimum necessary seed feeding roll (4) so as to pull it out from the rotary support shafts (9) and (9 ').

In the case of the embodiment shown in FIGS. 7 and 8 of Japanese Utility Model Laid-Open No. 63-10824, the seed leakage cover (8) standing upright from the grounding shoe (5) and the multi-sheet (4) are pressed. The sheet (4) by a pair of left and right rollers (6L) (6R)
The guide inclined surface (B) must be curved, and both the rollers (6L) (6R) must be used to block the left and right sides of the seeding tube (2), which is a necessary configuration for achieving the purpose. However, it is extremely complicated and expensive.

The width of the scraping body (1) is equal to the ground contact (5).
Even if it extends almost the same as that of the above, even if both left and right sides of the seeding tube (2) are blocked by both rollers (6L) (6R), both rollers (6L) (6R) and scraping body Between the front and back of (1), a pair of left and right gaps, which are substantially triangular in a side view, inevitably occur, and the seeding pipe (2)
Since the front-rear distance between the lower end (seed drop point) and the front surface (seed trapping point) of the scraper (1) is long, the seeds rolling in the process escape laterally from the pair of left and right gaps. I couldn't get it all to the center quickly,
As a result, it is impossible to accurately scrape the multi-sheet (4) into the seeding port (4a).

In particular, the seeding pipe (2) is in a state where it is installed in a downward slope, and the seeds are made to fall in the direction opposite to the progress of the tractor. Therefore, the dropping point is the multi-sheet (4). Combined with the curved guide slope (B), the seeds do not fall onto the multi-sheet (4) in a soft touch, so to speak, and the dance phenomenon is inevitably caused by the sudden drop of the large forces. become. In that sense as well, there is not enough time to reliably scrape the seeds into the sowing mouth (4a) without fail, and thus the traveling speed of the tractor (seeding work speed) must be slowed. It is clear that this happens in exactly the same way even when the seeding tube (2) is kept vertically installed.

Furthermore, the scraping body (1) is a provisional multi-sheet (4).
Even if it is in elastic contact with the sowing machine, it is impossible to follow the swaying motion of the seeding machine itself and the ups and downs of the seeding bed. Therefore, the pair of left and right rollers (6L) (6R The multi-sheet (4) pressed by) tends to wrinkle in the middle of the non-pressed part, and the seeds are removed from the upper and lower mutual gaps between the scraping body (1) and the multi-sheet (4). Leaks backwards,
The situation that cannot be captured may occur.

Then, the above-mentioned problems are formed by shaping the scraping body (1) into a completely surrounding shape of the seeding pipe (2) as in the embodiment described in FIGS. 11 to 15 of Japanese Utility Model Laid-Open No. 63-10824. However, it cannot be solved by itself.

<Means for Solving the Problems> The present invention is intended to improve such problems, and as a seed feeding device of a multi-seeding machine useful for that purpose, a funnel in side view communicating with the lower side of the seed storage hopper. Seed feeding box forming a mold, a bearing cylinder continuously hung from one of the left and right side wall surfaces of the feeding box, a rotary spindle for a seed feeding roll penetrating the bearing cylinder, and a rotary spindle thereof. Of the above-mentioned bearing barrel, which is fitted to one end exposed to the outside from the above-mentioned bearing cylinder, and the grounding drive wheel for rotationally driving the seed feeding roll, and the other end of the rotary support shaft, which covers the opening bottom surface of the feeding box. As a seed feeding roll inserted so that it can be freely inserted and removed, and can rotate integrally with the rotation support shaft,
By fitting the upper end portion to the bearing tube of the feeding box, the hanger stay for seed drop shout hung swingably around the rotation support shaft as a fulcrum, and the circumferential surface of the feeding roll. As a gutter type that faces from below, it is attached to the lower end of the hanger stay with the seed dropping chute attached and supported in a backward descending state, and is attached to the rear end of the dropping chute via the mounting base so that it can be adjusted up and down. The elastic sweeper, the rocking rod whose upper end is also supported by the rear wall of the feeding box, and the rocking rod that has been erected in a pivoted state from the rear end of the fall chute, and has already been laid on the seed bed of the elastic sweeper. A compression coil spring wound around the swing rod in order to press and press against the perforated multi-film. The elastic sweeper is shaped into a substantially V-shape that becomes deeper in a rear view, and the elastic sweeper is shaped into a concave shape in a bottom view with the front opening or an annular shape in a bottom view that surrounds the seeding hole, and is multi-molded from the drop chute. It is characterized in that the seeds released onto the film are set so that they can be swept quickly into the sowing holes by the elastic sweeper.

<Operation> According to the above-described configuration of the present invention, since the rotary shaft for the seed feeding roll of the bearing cylinder of the seed feeding box is so-called laterally suspended under the so-called one-point support state, the opening of the feeding box. Only the seed feeding roll facing the positional relationship of covering the bottom surface can be inserted and removed freely from one end of the rotary support shaft, and the feeding roll in which the seed feeding concave groove on the circumferential surface changes variously is replaced. At this time, there is no need to extract the rotary support shaft from the delivery box or extract the grounding drive wheel for rotating the delivery roll from the rotation support shaft.

Further, a hanger stay for a seed drop chute is oscillatably suspended around the rotation support shaft as a pivot point on the bearing tube of the feeding box, and a gutter type seed drop chute is attached to the rear descent. Since it is installed and supported as an inclined installation state, the seeds can be smoothly dropped like a soft touch from the dropping shoot onto the multi-film already laid on the seeding bed in accordance with the progress of the towing machine. The phenomenon of seed bouncing can be prevented.

Moreover, an elastic sweeper is attached to the rear end portion of the falling chute in the inclined installation state of the rear descending, and the sweeper has a bottom surface that opens forward so that the seeds can be gathered on the front and rear centerlines of the sowing holes. Since it is shaped as a concave shape of view or an annular shape of bottom view surrounding the seeding hole,
There is almost no distance between the front and rear of the drop shout and the elastic sweeper, so there is no time margin for the seeds to escape and roll, and this is captured quickly and surely, without leaking into the seed holes of the multi-film. Since it can be swept accurately, it is not necessary to reduce the sowing work speed.

Further, since the swing rod standing up from the vicinity of the rear end portion of the drop chute is wound with a compression coil spring for elastically pressing the elastic sweeper against the multi-film,
Even if there are vibrations during the operation of the sowing machine and ups and downs of the seed bed, the elastic sweeper effectively follows this action and always adheres to the multi-film, so that the seeds move backward from the elastic sweeper. There is no danger of leaking out.

<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,
A pair of left and right cultivators (13) are attached to the skeleton member of the ground leveling plate (12) attached to the rotary rear cover (11) so that the width of the ridge can be adjusted widely.

(14) is a frame frame that is erected from the rotary tiller (A) to the rear side, and has a generally torii shape in plan view, and left and right connected and fixed to both ends of the rear part. The pair of stabilizing wheel support frames (15) are provided with columns (17) of the stabilizing wheels (16) so as to be adjustable in movement in the front-rear direction and the up-down direction. The stabilizer wheel (16)
Rotary tiller (A) by moving up and down
The plowing depth of the field due to is adjusted.

The film laying device (B) and the seed feeding device (C) forming 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 above-mentioned soil cultivator (13). A film feeding roll (20) for automatically and continuously feeding the perforated multi-film (19), and a pair of left and right film pressing wheels (21) 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) that has been pressed.

Reference numeral (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 adjustable for movement in the front-rear direction. ) On the film hanger bar (26)
Are fitted so that they 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 vertically adjustable, and the film feeding roll ( 20) is mounted on the shaft, while the lower end positions of both hanger arms (27) are
The support shaft (29) of the film guide roll (28) is also fixed and laid horizontally.

The film feeding roll (20) is provided with its core tube (30) and a multi-film (19) pre-wound around it.
The film (19) fed out from now is smoothly guided to the lower rear by the idling action of the guide rolls (28). At that time, when the film feeding roll (20) is idled, the hail is also covered by this. Is given an appropriate braking force,
As the tractor moves forward, the film (19) is released without being loosened or torn.

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 roll pressing screw handle that is integrally extended in a laterally extending state in which the film hanger arm (27) is loosely penetrated from one conical piece (31), and is 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 other conical piece that remains (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 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, the screw handle (33) is pulled out laterally while resisting the tension of the coil spring (32), and the two conical pieces (31) are spread between the left and right sides. It is also possible to remove and replace the film feeding roll (20) itself. Therefore, by removing the feeding roll (20), it can be said that the multi-film (19) can be used for so-called ordinary sowing work without laying it.

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 presses the film (19) without damage. (37) is a refraction fulcrum pin that connects the middle part of the refraction arm (36), (3
8) is a pair of left and right elevating rods erected so as to intersect with the middle of the bending, and a compression coil spring (39) wound around this elevates a proper grounding elastic force to the film pressing wheel (21). Has been done.

(40) is a bending arm (36) and extension side frame (24)
It is a pivotal connection pin for and, around which a bending arm (36) with a film pressing wheel (21) can be folded up. (41) is a tension coil spring that locks and holds the folded state, and the bending arm (3
6) and the extended side frame (24) to each other,
As shown in Fig. 2, it is suspended in a chain. Its bending arm (3
6) A disk support arm (42) is also integrally projected from the mid-height position toward the rear, and the pillars (43) of the above-mentioned earth gathering disk (23) are provided at the rear end thereof.
However, the vertical movement is also adjustable.

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 middle position of the extension center frame (44), which is made of a hollow square pipe material, and has a toolbar for mounting the seed feeding device (C). (46) is laid horizontally 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 pillars (47) of hollow square pipe material that stand upright from the middle part of the tool bar (46) are 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. (Four
8) is a fixed nut that is enclosed and integrated in the support pillar (47) of the toolbar (46), and (49) is a screw nut that keeps the nut (48) in a screwed state. This is a screw handle for adjusting the installation height that has been inserted. By rotating this screw handle, the installation height of the toolbar (46) can be changed.

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 at regular intervals. Are installed in parallel.

Next, each of the seed feeding devices (C) will be described. As shown in FIGS. 5 and 9 to 11, this is preferably a transparent seed storage hopper (50) and the bottom of its opening is covered. A seed drive roll (51) mounted on a shaft and a grounding drive that is attached to one end of a rotary support shaft (52) that extends horizontally through the feed roll (51) and drives the feed roll (51) to rotate. A unit for pre-assembling from the wheel (53) is used as a unit, and the seed (S) drop-out shout (54) delivered by the delivery roll (51) is also always rearward falling 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 can be made as a unit as a whole, but in the case of the figure, 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 an elastic scraper for measuring the seed (S) received in the concave groove (56), To the front wall surface of the feeding box (55) through a butterfly bolt (58),
It is attached so that it can be moved back and forth toward the circumferential surface of the feeding roll (51). Similarly, (59) is a cover plate that is fixedly attached to the rear wall surface of the feeding box (55) with screws (60), etc., and it ties the front and rear pairs with the above-mentioned metering scraper (57) and attaches them to each other. It can be changed. 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 (58) and the screw hole for receiving the screw (60) are aligned with each other. The size corresponds to the opening. In addition, (61) is the above hopper (50)
It is an opening and closing cap.

The seed feeding roll (51) is inserted into and removed from the rotary support shaft (52) in an assembled state in which the seed feeding roll (51) can be integrally rotated, and a related state in which the opening bottom surface of the feeding box (55) is covered. It is in. That is, the feeding box (5
From either the left or right side of 5), as shown in Fig. 9 and 11,
The bearing cylinder (62) in an outwardly projecting state is continuously suspended, and the rotary support shaft (52) is horizontally passed through the bearing cylinder (62) in a so-called single-point support state.

Then, the ground drive wheel (53) of the seed feeding roll (51) is fitted onto one end of the rotary support shaft (52) exposed outward from the bearing cylinder (61) so as to be integrally rotatable. There is. In that case, the grounding drive wheel (53) is made of an elastic material on its circumferential surface and rolls on the film (19) without damaging it so that the film (19) is in close contact with the seed bed (M). The seed feeding roll (51) is rotated while being flattened.

The payout roll (51) is inserted into and removed from the other end of the rotary support shaft (52), and the rotary support shaft (5)
It is supported as a so-called cantilever state according to 2). Therefore, it is not necessary to extract the rotary support shaft (52) from the intermediate bearing tube (62) of the supply box (55) one by one and disassemble it, and simply extract only the supply roll (51) from the rotary support shaft (52). It can be replaced, and conversely the delivery box (5
It can be used by inserting it so that it will properly face the bottom of the opening in 5).

Also, the seed feeding roll (51) and its rotation support shaft (52) may have their mating surfaces formed into a square cross section or a spline, or a key along the rotation axis direction, as long as they are in a mating state in which they rotate integrally with each other. The key pin (63), as shown in the figure, is skewed along the diametrical direction of the rotary support shaft (52) and penetrates through the pin (63).
If the receiving key hole (64) is formed as the opening of the seed feeding roll (51), not only the feeding roll (51) can be integrally rotated by their mutual locking action, but also the rotation spindle (52) It is even more rational in that the key pin (63) can also prevent the feeding box (55) from laterally slipping out of the bearing tube (62).

The seed drop chute (54) is a seed feeding roll (51).
It has a substantially gutter-shaped cross section with a constant opening width that faces the circumferential surface from below, and is configured to undulatingly rotate about the rotation axis of the payout roll (51) as a fulcrum.

That is, the reference numeral (65) is a hanger stay for the seed drop chute (54), but as is clear from FIGS. 9 and 11, it has a generally L-shaped rear view and one horizontal end thereof. While the part is fixedly integrated with a mounting piece (66) protruding from the bottom wall surface of the shout (54) by a screw (67) or the like, the other vertical end of the hanger stay (65) also has a mounting boss ( As 68), the bearing tube (62) hanging from the seed feeding box (55) is fitted so as to be swingable in the front-rear direction and capable of being inserted and removed.

And, as described above, the rotation support shaft (52) of the seed feeding roll (51) is laid across the center of the bearing tube (62) so that the shout (54) is attached to the support shaft (52). ) It can be said that it is in a suspended state where it can perform an undulating swinging action. It is needless to say that the rotation spindle (52) is located on the symmetric 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 has been stated above that the seed drop chute (54) is always suspended in a rearwardly inclined installation state, the sweeper mounting base (69) is transversely attached to the rear end of the seed dropping chute (54) and fixed integrally by welding or the like. There is. However, if the attachment base (69) is attached, the rear end of the shout (54) is in an open state where the seed (S) can fall, as a matter of course.

As is clear from FIGS. 12 to 15, the bottom wall surface of the shout (54) becomes gradually deeper toward the rear end thereof, and is approximately V in rear view.
It is shaped like a letter, and while keeping the drop action length (L) of the seed (S) constant by this, it may be put in another way as an inclined installation angle (the crossing angle with the sowing bed or the multi-film) after that. ) (Α) is made as steep as possible (a sharp angle in a side view) to promote the dropping action of the seed (S) and to keep the seed (S) on the longitudinal centerline of the shout (54). It is possible to gather together.

(70) is an elastic sweeper for sweeping seeds (S) into the sowing holes (18) of the multi-film (19), which is preferably made of synthetic resin brush bristles and has a flocking bracket (71). Is the mounting base (6
It is detachably attached to 9) with a butterfly bolt (72). (73) is a screw hole provided in the mounting base (69), and (74) is a lifting guide length opened in the holding bracket (71) of the sweeper (70) so as to correspond to the screw hole (73). A hole by which the seed bed (M)
It is also possible to adjust the installation height of the sweeper (70) to the, and further, to replace the sweeper (70) as it is with the brush bristles facing upward.

Along the above elevating guide slot (74), sweeper (70)
If the installation height is set high, the inclination installation angle (α) of the shout (54) becomes a large steep angle, and if the installation height is set low, the inclination installation angle (α) of the shout (54) is also set. ) Can be used properly according to the type and size of the seed (S) because it has a small gentle angle.

If the brush bristles of the sweeper (70) are replaced by turning them upside down, or if they are removed from the mounting base (69) of the shout (54), the multi-film (19) as shown in Fig. 19 and 20 is not laid. Normal sowing work can be performed without any problems. At that time, as described above, the film feeding roll (20) may be removed.

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

Moreover, the brush bristles of the sweeper (70) are, by the bending of the mouthpiece portion of the bracket (71), the 16th and 17th.
As shown in the figure, it is shaped like a U-shape or V-shape in bottom view with the front open, and sows the film (19) while capturing 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 should be attached to the sweeper (70). It is preferable to additionally install at the position immediately before. It is 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 so as to surround the seeding hole (18).

In the case of the illustrated example, the bracket (77) to which the cover (76) is attached and integrated is used to attach the bracket (71) of the sweater (70) and the bracket (71) of the sweeper (70) to each other. The butterfly bolt (72) is also used as an intervening member, and is simultaneously fastened and fixed to the mounting base (69) at the same time. With the elastic cover (76) and the sweeper (70), the seeding hole (18) of the film (19) is set in a relational state in which it is completely surrounded as shown in FIG. Reference numeral (78) denotes a bolt receiving hole opened in the bracket (77) of the cover (76).

Reference numeral (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) wound around the seed rod is used for the sweeper (70) and the elastic cover (76). Is applied to the film (19) of the seed bed (M) with a proper elastic force.

The lower end of the rocking rod (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. The upper end portion of is connected and held to a bearing boss (81b) protruding from the rear wall surface of the seed feeding box (55) via a pivot pin (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 paired up and down, as shown by another reference numeral (81a) in FIGS. It is also integrally projected from the front wall surface of the box (55), and a pair of front and rear bearing bosses (81a).
(81b) are arranged symmetrically to each other. The pivot pin (82) holding the upper end of the swing 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 Fig. 12 to 15 to prevent rainwater, soil clods, and other obstacles from entering. You may.

(84) is a seed feeding device (C) for the toolbar (46)
The connecting arm of the film, the film feeding roll (20)
The bracket (85), which is bent in an inverted U-shape in a side view over the top and is integrally attached to the rear end of the bracket, is used as a front bearing boss (81) in the seed feeding box (55).
It is connected and fixed to a) by a pair of upper and lower fixing pins (86). The fixing pin (86) is also the swing rod (79).
Like the pivot pin (82) of the above, it can be inserted into and removed from the bearing boss (81a). Moreover, the fixing pin (8
6) and the pivot pin (82) are a pair of front and rear bearing bosses (81a)
(81b) can also be penetrated interchangeably.

In this way, a plurality of bearing bosses (81a) (81b) are projected from the seed feeding box (55) in a front-rear symmetrical arrangement type, and the front and rear pairs of the fixing pins (86) and the pivot pins (82) are provided. If it is determined that the seed feeding rolls (51) are supported in a so-called cantilever state by the above-described rotation support shaft (52) with the ground drive wheel (53), the rotation support shaft (52) can be used. ), And the hanger stay (65) of the seed drop chute (54) can be inserted into and removed from the bearing tube (62) of the feeding box (55). When the seed feeding device (C) is installed in parallel on the toolbar (46) as a multi-row type, the interim feeding box (55) of the seed feeding device (C) can be set forward or backward and can be used as it is without any trouble by changing its direction. When changing its direction, the seed feeding roll (51) and its ground drive wheels (53),
Seed drop chute (54), 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 both left and right shoulders of the seed bed (M) without fear of floating, and the seed feeding roll (51) can always be reliably driven to rotate inside (facing the traveling center line). It has the effect that it can be placed side by side as an installation state (inward).

On the other hand, the barrel (87) is fixedly integrated with the front end of the connecting arm (84) in a horizontal horizontal state by welding or the like. Reference numeral (88) 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 a 21st wall from its front wall surface.
As shown in the figure, a pair of left and right ear pieces (89) sandwiching the barrel (87) of the connecting arm (84) are integrally projected forward. Reference numeral (90) is a shaft receiving hole opened at an upper position of the both ear pieces (89), and a connecting arm (84) is formed by a horizontal pivoting shaft (91) which is horizontally extended through the shaft cylinder (87). )
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), it is moved to the center line (Y-Y) in the front and rear of the seeding holes (18) which are scattered in the film (19). In order to correctly and properly match the inter-seed seed drop shorts (54) of the various child feeding devices (C), their positioning can be set.

Reference numeral (92) is a screw handle for adjusting the position of the mounting bracket (88) with respect to the toolbar (46), and is screwed into the screw hole (93) opened on the upper wall surface of the bracket (88) so as to be able to move back and forth from above. It is standing. (94) is an engagement cam plate inserted between the upper and lower parts of the neck portion of the screw handle (92) and the mounting bracket (88), and has an overall fan shape in plan view, The shaft leg of the screw handle (92) penetrating the stupid hole (95) of the main part can be horizontally rotated 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 a plan view in which the front is blocked, whereas the second engagement notch (96b) continuous with the front is in a fully open state. Moreover, the first and second engagement notches (96a) and (96b) are arranged on the rotation loci of the same radius dimension (R1) centering on the pivot point.

The remaining third engaging notch (96c) is the first and second engaging notch (96c).
a) While located on another rotation locus with a radius dimension (R2) longer than the constant dimension (W) by a certain dimension (W), it is in a discontinuous state with both engagement notches (96a) (96b). It is divided. Then, the first to third engaging notches (96a) (96b) (96
Both of c) are arranged so as to engage with and disengageably engage with the particularly rising middle part of the connecting arm (84).

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. However, when the connecting arm (84) is engaged with the third engaging notch (96c) of the cam plate (94), 3 engagement notch (9
Since 6c) is arranged on the rotation locus with a long radius dimension (R2), the seed feeding device (C) slightly floats above the seed bed (M) as shown in FIGS. 24, 26, and 27. ing.

On the other hand, when the connecting arm (84) is engaged with the first engaging notch (96a) of the cam plate (94), the first engaging notch (96a).
Exists on the turning locus with a short radius (R1),
The seed feeding device (C) is grounded to the seed bed (M) so that its seeding action can be performed without any hindrance, but the first engaging notch (96a) has a restrained hook shape in front of it. Therefore, as is apparent from FIGS. 23 and 25, the pivotal action of the connecting arm (84) toward the front is fixedly locked,
The seed feeding device (C) is kept incapable of the overall swinging action.

And the second engaging notch (96b) in the front open state
22. Therefore, only when the connecting arm (84) is engaged as shown in FIG. 22, the seed feeding device (C) performs the overall swinging 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 performed by connecting the cam plate (94) to the screw handle (9
2) It is rotated horizontally around the fulcrum, and at that time, the seed feeding device (C) is lifted if necessary, and the first to third engaging cutouts (96a) (96b) (96c) and the connecting arm (84). ) And by selectively engaging and disengaging, you can switch to the so-called one-touch type.

Reference numeral (97) is a compression coil spring for locking the rotation of the cam plate (94), and is interposed 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 the screw retraction operation of the screw handle (92), the cam plate (94) can be horizontally rotated as described above. It can be done.

By engaging the connecting arm (84) with the first engaging notch (96a) of the cam plate (94), the entire seed feeding device (C) can be fixedly locked so that the seed feeding device (C) does not oscillate. Therefore, while raising the multi-seeding machine with a tractor,
Toolbar (46) for driving on general roads
It is possible to effectively prevent rattling of the seed feeding device (C) against the above, and accidental drop of various child feeding devices (C).

Similarly, if the connecting arm (84) is engaged with the third engaging notch (96c) of the cam plate (94), the whole seed feeding device (C) is indicated by the chain line in FIG. 27. As a state of floating from the seed bed (M) by a certain height (H),
Since it can be intentionally held, when a plurality of them are installed in parallel on the toolbar (46),
By floating the arbitrary seed feeding device (C), it is possible to quickly cope with changes in the number of rows of the sowing work and the spacing between adjacent rows on the left and right. When the number of rows is changed, it is not necessary to pull out only the seed feeding device (C), which is unnecessary in terms of use, from the rule bar (46) laterally outward.

Further, (98) is also connected to the mounting bracket (88) on the toolbar (46) while the connecting arm (84) also serves as the rotation pivot (91), and is also attached to the protruding ear piece (89) of the mounting bracket (88). It is a hanger stay for groovers that is rotatably connected, and is substantially L in side view as shown in FIGS.
It has a glyph shape. (99) is the hanger stay (98)
A pair of left and right projecting tongues integrally attached to the vertical upper end of the above, and correspond to the projecting ear pieces (89) of the above-mentioned mounting bracket (88), and this has a shaft receiving hole (90). A communication hole (100) for communicating with is formed.

Reference numeral (101) is a stupid hole opened at the lower end portion of both the protruding ear pieces (89) in the mounting bracket (88), and the rod receiving pin (102) is horizontally extended through the rod receiving pin (102). (103) is a stupid hole penetratingly formed in the center of the pin (102), and (104) is a stupid hole opened in the center of the upper end of the hanger stay (98) so as to correspond thereto. An advancing / retreating rod (105) for adjusting the ground pressure is pierced through the both fool holes (103) (104) in the front-rear direction so as to be able to advance and retreat in the front-rear direction. The midpoint height position of the hanger stay (98) for the groove making device, which is suspended from the pivot axis (91), is stably supported by the advancing / retreating rod (105).

(106) is interposed between the rear end head of the advance / retreat rod (105) and the hanger stay (98), and the advance / retreat rod (10)
5) A compression coil spring wound around the
If the tension of the compression coil spring (106) is adjusted by rotating the adjustment nut (107) screwed to the front end screw part of 05) and screwing the advancing / retreating rod (105) forward and backward, As a result, the ground 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 type which is smoothly curved as a whole, and the front end thereof is the lower end of the grooving tool hanger stay (98). It is attached to the portion by a butterfly bolt (109) or the like, and extends long along the lower surface of the above-mentioned multi-film (19) and to a position immediately after the seed drop chute (54). Reference numeral (110) shows a screw hole for receiving the butterfly bolt (109) opened in the hanger stay (98). And as the tractor progresses, the grooving device (108)
Thus, the seeding groove (G) having a constant band width is provided to the seeding bed (M).

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

Reference numeral (112) is a band-shaped seed discharge port cut out in the rear bottom surface of the grooving device (108), and is maintained in such a state that it properly communicates with the rear end portion 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 provided after the embankment by applying the sowing groove (G). It is useful for the earth removing action to prevent the invasion of the concrete.

Further, (114) is an earthenware container which is a unit attached to the grooving device (108) in advance, and is composed of a pair of left and right round bar members,
Only both front ends thereof are fixedly integrated with the front end of the grooving device (108) by welding or the like. In that case, the hanger stay (98) and the groove-making device (108) are positioned so that the hanger stay (98) and the groove-making device (108) do not move sideways as shown in FIG. As a state, they are connected and fixed.

Then, the soil 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 tool (108), the soil muller (114) is deeper than the grooving tool (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 inward substantially horizontal bent 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 tool bar (46) and the grooving device (108) which is an attached unit of the soil cover (114) are common to each other. Since it is pivotally connected to the mounting bracket (88), the mounting bracket (88) is moved and adjusted in the left-right direction along the toolbar (46), and then the screw handle (92).
By positioning and fixing the seed feeding device (C) and the grooving device (108), the front and rear centerlines (Y) of the sowing holes (18) scattered in the multi-film (19) are arranged as a whole unit body. -Y) can be installed on top of each other at the same time at the time of so-called one-touch operation, and with proper correct correspondence.

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 of the digging device (108) is rotated with the hanger stay (98) for the grooving device. An advancing / retreating rod (10) is hung from the mounting bracket (88) through a pivot shaft (91) so as to be entirely swingable and swings through the midway part of the hanger stay (98).
Since the grounding pressure of the compression coil spring (106) acts on the whole by 5), even if the grounding pressure is adjusted to be strong or weak, the grooving device (108) and the soil cover (11).
4) The precise relation state with 4) will always be maintained at a constant level, and in that sense, the multi-seeding work will be carried out properly and overall.
It can be stabilized.

Further, (116) is the extension center frame (44) described above.
It is a hanger frame for a compression roller that is extended from the rear to the rear in a hanging state, and as shown in FIGS. 3 and 33, the entire lower end has an extension mast (117) attached to it as a whole in side view. It has a typical inverted L-shape. (11
Reference numeral 8) is a pivot pin that is located slightly behind the hanger post (45) of the toolbar (46) and is pierced horizontally in the middle of the extension center frame (44). The front end of the hanger frame (116) is attached so that the hanger frame (116) can perform a rocking action around the pivot pin (118).

(119) is a hanger frame (116) for its compression roller
The extension center frame (4
4) A support pin fixed horizontally across the rear end of the support pin, which has an inverted T-shape when viewed from the rear, and is wound around the screw shaft that stands up as the penetrating state of the hanger frame (116). By the compression coil spring (120), an appropriate ground pressure is applied to the entire compression roller described later. Reference numeral (121) is an adjusting nut for adjusting the tension of the coil spring (120) strongly, and it is a support pin (119).
Is screwed onto the screw shaft portion from above.

The extension mast (117) is fitted in the hanger frame (116) so as to be adjustable up and down, and is assembled by the positioning fixing pin (122). 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 substantially fan shape in a side view.

(124) is a rotation center hole opened in the main part of the adjusting plate (123), and (125a) (125b) (125c) is the center hole (124).
The adjustment holes (125a) (125b) (125c) are a plurality of adjustment holes opened around the arc of the adjustment plate (123) so as to be located on a virtual rotation locus keeping a constant radius dimension from The rotation angle range (β) is set to about 90 degrees in advance.

Reference numeral (126) is an operation column for the compression roller formed in a fork-shaped fork sandwiching the adjustment plate (123), and a pair of left and right compression roller support shafts (127) are integrally formed sideways from the lower end thereof. , And they are projected in a relational state in which they cross each other at a constant angle (γ). In other words, 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 shaft (127) has a compression roller. (128) are fitted so as to be freely rotatable and removable.

The operation column (126) of both the compression rollers (128) has a rotation angle selection hole (129) that selectively matches the adjustment holes (25a) (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 opened, the adjusting pin (131) and the fixing pin (132) are vertically moved. By laying the pair of through-holes laterally, the compression roller (128) can be stably and rigidly attached to the extension mast (127) of the hanger frame (116).

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

Then, the adjustment pin (131) that penetrates through the selection hole (129) of the operation support column (126) and the adjustment holes (125a) (125b) (125c) of the adjustment plate (123) is removed and inserted, and The operation column (126) is rotated within the above-mentioned rotation angle range (β) of about 90 degrees. When the operation column (126) is maintained in a substantially vertical standing posture in side view as shown in FIG. 34 (I). , A pair of left and right compression roller support shafts (127) are correctly aligned on the same line (ZZ) in the plan view of FIG. 35 (I), and the mountain in the rear view as shown in FIG. 6 (I). It becomes a state of crossing over the mold, and the sowing bed (M) is applied to the mushrooms by both pressure suppression rollers (128).
At the same time as shaping the ridges into ridges, the multi-film (19) can be brought into close contact with the seed bed (M) as an overall tension without wrinkling.

On the other hand, as shown in FIG. 34 (II), when the operation support (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).
In the rear view, as shown in FIG. 35 (II), they are correctly juxtaposed on the same horizontal line (XX) and intersect in the backward mountain shape in the plan view, and therefore, both the compression rollers (128). ), The seedbed (M) is shaped into 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, the seed feeding device (C) of the multi-seeding machine according to the present invention is a funnel-shaped seed feeding box (55) in side view, which communicates with the lower side of the seed storage hopper (50). ), A bearing tube (62) which is continuously hung from one of the left and right side wall surfaces of the feeding box (55), and a rotary spindle (52) for seed feeding rolls penetrating the bearing tube (62). ), A ground drive wheel (53) for rotationally driving the seed feeding roll that is fitted onto one end of the rotary support shaft (52) exposed outward from the bearing tube (62), and the rotary support shaft (53). The seed feeding roll (51) is inserted from the other end of the feeding box (55) so that the bottom surface of the opening of the feeding box (55) is covered with the rotation support shaft (52) so that it can be removed and inserted. ) And the upper end of the bearing box (62) of the feeding box (55) are fitted. , A hanger stay (65) for a seed drop chute suspended swingably around the rotation support shaft (52) and a trough type that faces the circumferential surface of the feeding roll (51) from below. , A seed drop chute (54) mounted and supported on the lower end of the hanger stay (65) in a downwardly inclined state
And the elastic sweeper (70) mounted to the rear end of the drop chute (54) via the mounting base (69) so as to be adjustable up and down, and from the vicinity of the rear end of the drop chute (54) as well. Standing in the state, the upper end of the swinging rod (79) held on the rear wall surface of the feeding box (55) and the elastic sweeper (70) are installed on the seed bed (M). To press it against the film (19) and press it down,
A compression coil spring (80) wound around the swing rod (79) is provided, and the bottom wall surface of the drop shout (54) gradually becomes deeper toward the rear end thereof. In addition to shaping the elastic sweeper (70) into a concave shape with a front view opened in a bottom view or an annular shape with a bottom view surrounding the seeding hole (18), the multi-film ( 19) Since the seed (S) released above is swept into the seeding hole (18) by the elastic sweeper (70), the problems of the prior art mentioned at the beginning can be improved. effective.

That is, according to the above configuration of the present invention, the hanger stay (65) for seed drop chute is oscillatably suspended from the bearing tube (62) of the seed feeding box (55), and the gutter type Since the seed drop chute (54) is installed and supported in a positional relationship in which it faces the circumferential surface of the feeding roll (51) from below, and is installed and supported in an inclined installation position that is rearward and downward, feeding is performed so as to adapt to the progress of the multi-seeding machine. The seed (S) can be smoothly dropped like a soft touch onto the perforated multi-film (19) that has been laid on the seed bed (M) from the roll (51) through the shout (54). The dance phenomenon of can be prevented.

In the process, since the bottom wall surface of the seed falling chute (54) is shaped into a substantially V shape in rear view, which gradually becomes deeper toward the rear end, the seed (S) is cut into the shout (54).
By gathering them together on the longitudinal centerline of the seedlings, the front and rear centerlines (Y-
Y) It will also be possible to correctly point upwards.

In addition, at the rear end of the falling chute (54) in the downwardly inclined installation state, there is a front where the seeds (S) can also be gathered on the front-rear center line (Y-Y) of the sowing hole (18). Since the elastic sweeper (70) shaped in the open bottom concave shape or the bottom view annular shape surrounding the seeding hole (18) is attached, the seeds dropped from the shout (54) as described above. (S) is quickly captured by the elastic sweeper (70) without any time allowance to escape laterally to roll and diffuse, and the seeding hole (1
8) It can be swept into the inside by itself, does not cause uneven sowing, and is not subject to the constraint of lowering the progressing speed (working speed) of the sowing machine.

The elastic sweeper (70) is a multi-film (19).
It is of course elastically grounded against the ground and does not give any damage to it, but in the middle of the swing rod (79) standing up near the rear end of the shout (54), the compression coil spring (80) is wound, and the elastic pressure applied to the multi-film (19) is applied to the elastic sweeper (70), so that the swaying motion of the seeding machine and the sowing bed (M) are prevented. The elastic sweeper (70) always keeps a close contact with the film (19) even when it is brought into contact with the film, so that there is no possibility that the elastic sweeper (70) catches and leaks the seed (S).

Further, since the elastic sweeper (70) is attached to the rear end portion of the seed drop chute (54) so that it can be adjusted up and down, when it is set in its raised state, the rear downward tilt installation angle of the shout (54) is set. (Α) becomes a steep angle, and conversely, when it is set to the descending state, the inclined installation angle (α) also becomes a gentle angle, and the above-mentioned mounting state is changed according to the type and size of the seed (S). There is also an effect that can be used properly.

In addition, a bearing tube (62) that projects outward from either one of the left and right side wall surfaces of the seed feeding box (55) hangs down, and the rotary spindle (52) for seed feeding rolls supports the so-called one-point support. The seed feeding roll (51) that faces the positional relationship of covering the bottom surface of the opening of the feeding box (55) is passed from one end of the rotary support shaft (52) because it is horizontally passed through under the condition. The rotation support shaft (52) can be inserted and removed freely and the seed feeding groove (56) on the circumferential surface thereof changes variously when the feeding roll (51) is replaced. Pull it out or its rotation spindle (5
There is no need to extract the ground drive wheel (53) from 2).

Particularly, if the structure of claim 2 is adopted, the seed (S) is swept into the seeding hole (18) of the film (19) more quickly and surely by the elastic cover (76) and the elastic sweeper (70). The compression coil spring (8
The elastic force pressing the film (19) against the film (19) is also applied to the elastic cover (76) of the film. As a result, not only the seed leakage from the elastic sweeper (70) to the rear but also to the opposite direction to the front. Seed leakage can be completely prevented by itself.

Further, if the structure of claim 3 is adopted, not only the seed feeding roll (51) can be inserted into and removed from the rotary support shaft (52) freely, but also the key pin (63) and its key hole (6).
Due to the locking action with 4), both can be surely rotated integrally, and at the same time, the rotation spindle (52) exists from the bearing tube (62) of the feeding box (55) to the ground drive wheel (53). It can be said that it is even more effective in that the key pin (63) can prevent the risk of slipping out laterally.

[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 on 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. A side sectional view and a sectional rear view, which are cut away, and FIGS. 12 and 13 are a plan view and a rear view, respectively, showing an extracted seed dropping shout.
14 and 15 are sectional views taken along lines 14-14 and 15-15 of FIG. 12,
FIG. 16 is a perspective view showing an elastic sweeper for sweeping seeds, FIG. 17 is a plan view showing a working relationship state between the sweeper and a seed hole of the film, and FIG. 18 is an arrangement relationship between the sweeper and the elastic cover. FIG. 19 is a plan view showing a state, FIG. 19 is a side view showing a non-multi-seeding action state corresponding to FIG.
Fig. 20 is an enlarged sectional view taken along the line 20-20 in Fig. 19, Fig. 21 is an exploded perspective view showing the installation relation state of the connecting arm to the tool bracket mounting bracket and the grooving device, and Fig. 22 is Fig. 3 of
22-22 is an enlarged cross-sectional view taken along the line 22-23, and FIGS. 23 and 24 are cross-sectional plan views each showing a non-swingable fixed set state of the seed feeding device corresponding to FIG. 22 and a floating set state from the seed bed. ,
FIG. 25 is a sectional view taken along line 25-25 in FIG. 23, and FIG. 26 is 26- in FIG.
26 is a sectional view taken along the line 26, FIG. 27 is an overall side view which also suggests a floating set state of the seed feeding device, and FIGS. 28 and 29 are perspective views of the assembly unit body of the grooving device and the earthen cover as viewed from both sides, 30th
Fig. 30 is an enlarged cross-sectional view taken along the line 30-30 of Fig. 3, Fig. 31 is a cross-sectional rear view showing the action of seeding concave grooves by a groover,
Fig. 32 is a cross-sectional rear view showing the soil cover operation state of the seed cover, Fig. 33 is an exploded perspective view showing the installation state of the pressure roller, and Figs. 34 (I) and (II) are comparison of the angle change state of the pressure roller. Fig. 35 (I) (II) and 36
FIGS. (I) and (II) are a plan view and a rear view corresponding to FIGS. 34 (I) and (II), respectively. (18) …… Seeding hole (19) …… Multi-film (46) …… Toolbar (50) …… Seed receiving hopper (51) …… Seed feeding roll (52) …… Rotating spindle (53) …… Grounding Drive wheel (54) …… Seed drop short (55) …… Seed feeding box (70) …… Elastic sweeper (A) …… Rotary tiller (B) …… Film laying device (C) …… Seed feeding device ( M) …… Sowing bed (S) …… Seeds

Claims (3)

[Claims] 1. A funnel-shaped seed feeding box (55) in side view, which communicates with the lower side of the seed storage hopper (50), and is continuously hung from one of the left and right side walls of the feeding box (55). Bearing barrel (62), the rotary shaft (52) for the seed feeding roll that is passed through the bearing barrel (62), and the bearing barrel (62) of the rotary spindle (52) outward. The ground drive wheel (53) for rotating the seed feeding roll that is fitted over the exposed one end, and the position where the bottom surface of the opening of the feeding box (55) is covered from the other end of the rotary support shaft (52). As a relation, the seed feeding roll (51) inserted so that it can be freely inserted / removed and integrally rotated with the rotation support shaft (52), and the upper end portion is fitted onto the bearing tube (62) of the feeding box (55). As a result, the seed drop suspended from the rotary support shaft (52) is pivotally supported. A lower shed hanger stay (65) and a seed that is attached and supported to the lower end of the hanger stay (65) in a rearwardly inclined state as a gutter type that faces the circumferential surface of the feeding roll (51) from below. Falling Shout (54)
And the elastic sweeper (70) mounted to the rear end of the drop chute (54) via the mounting base (69) so as to be adjustable up and down, and from the vicinity of the rear end of the drop chute (54) as well. Standing in the state, the upper end of the swinging rod (79) held on the rear wall surface of the feeding box (55) and the elastic sweeper (70) are installed on the seed bed (M). To press it against the film (19) and press it down,
A compression coil spring (80) wound around the swing rod (79) is provided, and the bottom wall surface of the drop shout (54) gradually becomes deeper toward the rear end thereof. In addition to the above, the elastic sweeper (70) is shaped into a concave shape in a bottom view in which the front is open, or an annular shape in a bottom view surrounding the seeding hole (18). (19) A seed feeding device for a multi-seeding machine, characterized in that the seed (S) released above is set to be swept quickly into the sowing hole (18) by the elastic sweeper (70). 2. The elastic cover (76) facing the position immediately before the elastic sweeper (70) is attached to the rear end of the seed drop chute (54) together with the elastic sweeper (70). Item 2. The seed feeding device of the multi-seeding machine according to Item 1. 3. The key pin (63) is pierced and penetrated along the diameter direction of the rotary support shaft (52) while the key pin (63) is penetrated.
Is formed in the seed feeding roll (51) so that the key hole (64) and the key pin (63) lock the feeding roll (51). The seed feeding device for a multi-seeding machine according to claim 1, wherein the support shaft (52) is inserted into and removed from the other end of the support shaft (52).