JPH02174602A - Floating device for traction type seeding device - Google Patents

Abstract

PURPOSE:To follow ups and downs of sowing bed and carry out effective sowing operation by connecting a connecting arm for seed feeding device to a bracket to a tool bar so as to carry out rising and falling action through a horizontal turning pivot. CONSTITUTION:In a seed feeding device C for sowing equipment, a connecting arm 84 of the connecting device C is connected through a horizontal turning pivot 91 to a bracket 88 to a tool bar 46 so as to be able to rise and fall and follows through a ground driving ring 53 to ups and downs of a sowing bed M. The bracket 88 corresponds to change between stripes in movable and adjustable state in lateral direction along the tool bar 46 and fixed by a screw handle 92. Further, an engaging cam 94 is subjected to turning operation around a vertical supporting point of the screw handle 92 to lock and retain the seed feeding device C in floating state from the sowing bed M. Thereby effective sowing operation can be carried out.

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a floating device for a traction seeding machine.

<Prior art> A multiple seeding machine towed by a main power machine such as a tractor is disclosed in, for example, Japanese Utility Model Application No. 63-140810 and Japanese Utility Model Application No. 63-140810.
158101, in which a plurality of seed feed rolls are installed in parallel on a common long rotational shaft, and are simultaneously driven to rotate by power taken from a dedicated ground drive wheel. It looks like this.

<Problems to be Solved by the Invention> However, according to such a configuration, when it is desired to change the number of sowing rows, there is no way to respond to the change other than by omitting putting seeds into any seed storage hopper. I can't do it. Therefore, in reality, a special model is used, for example, for 4 or 5 rows, and the number of sowing rows is predetermined, and it is inferior in adaptability to the above-mentioned changes.

<Means for Solving the Problems> The present invention is intended to solve such problems, and for this purpose, as a floating device of a towed seeding machine, a tool bar towed by a power main machine is provided with a tool bar that is pulled in the left and right direction. A movable and adjustable mounting bracket is fitted onto the mantle, and its adjusted state is determined and fixed by a screw handle that is screwed into the mounting bracket from above so that it can move forward and backward. A pre-prepared system consisting of a seed feed roll, a rotating support shaft that suspends the sono roll horizontally, a ground drive wheel for rotating the roll attached to the support shaft, and a falling chute for the seeds fed by the roll. The front end of the arch-shaped connecting arm, which integrally extends forward from the hover, is connected to the mounting bracket by a horizontal rotation axis, so that the entire seed dispensing device is undulating with respect to the seeding bed. The engagement cam plate, which is connected so as to be able to swing freely and is provided with several types of engagement notches that detachably engage with the mid-upright part of the connection arm, is pivoted to the mounting bracket using the screw handle. By rotating the engaging cam plate about the vertical fulcrum of the screw handle and selectively engaging the engaging notch with the connecting arm, the entire seed dispensing device can be removed from the seed bed. Its main feature is that it can be locked and held while floating a certain height.

<Operation> According to the above configuration, the seed dispensing device of the sowing machine forms a pre-assembled unit, and the connecting arm is connected to the mounting bracket to the tool bar for raising and lowering movement via a horizontal rotation axis. Since they are connected in such a way that they can move, they follow the undulations of the seeding bed in that state, and therefore, effective seeding work can be carried out automatically.

In addition, the mounting bracket for the tool bar can be freely adjusted to move in the left and right directions along the tool bar, and the adjusted state is fixed in position by the screw handle, so that multiple seed feeding devices can be connected in multiple ways. As such, when installed in parallel on the toolbar, it can be made to respond to changes in the row spacing of the sowing.

Furthermore, since the above-mentioned mounting bracket also serves as a screw handle, and an engagement cam plate that removably engages with the connecting arm is pivotally attached, the engagement cam plate can be mounted around the vertical fulcrum of the screw handle. By selectively engaging the several types of engagement notches with the connecting arm, the seed dispensing device can be locked and held in a floating state above the seeding bed, and as a result, it can be used for multiple purposes. As a continuous type, when installed in parallel on the tool bar, the number of sowing rows can be changed at will, increasing the versatility of the sowing wi11M.

<Example> Hereinafter, the specific configuration of the present invention will be described in detail based on the illustrated example. Fig. 1.2 shows the entire multi-seeder according to a general example of the present invention. A) is a rotary tiller pulled by a tractor or other power machine not shown, and its rotary rear cover (11)
On the framework material of the leveling plate (12) attached to the , a pair of left and right cultivators (13) are used to make the ridges wide and narrow. A section has been set aside so that it can be adjusted.

(14) is a frame installed rearward from the rotary tillage device (A), which has a generally birdhouse shape in plan view, and is connected and fixed to both ends of the rear end. The stable shaft support frame (5) for the left and right sides is
Each of the supporting columns (17) of the stabilizing shaft (16) is attached with a movement adjustment angle fi along the front-rear direction and the up-down direction. By moving the stabilizing shaft (16) in the vertical direction, the tillage depth of the field by the rotary tiller (A) can be adjusted.

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

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

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

The film feeding roll (20) is equipped with its core tube (30) and 18 multi-films (19) that have been placed on it in advance, and the film (19) fed out from this is provided with the guide roll (28). Due to the rolling action, the film is guided smoothly backward and downward, and at this time the film is moved by the film feeding roll (
When the film (19) is free-rotating, a suitable braking force is applied to it, and as the tractor moves forward, the film (19) is allowed to unwind without loosening or tearing. ing.

That is, as extracted in FIGS. 6 to 8, the film 4ffi
The core tube (30) of the output roll (20) is freely rotatably supported at both ends thereof via a pair of left and right conical pieces (31), and a compression coil spring (32)
This provides a braking force. (33) connects one of the conical pieces (31) to the film hanger arm (
27) in a horizontally suspended state, the roll pressing screw handle is protruded from the inside, and the adjustment nut (34) and the film hanger arm (27) are screwed into the middle part of the handle. A compression coil spring (3
2) has I! on its screw handle (33). equipped. The remaining conical piece (31) is connected to its corresponding film hanger arm (27) by a support shaft (35) such as a bolt.
) is fixed by

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

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

From the 1&end of the extended side frame (24), a refracting arm (36
) are each projected downward, and the above-mentioned film pressing ring (21) is rotatably supported at the front lower end position of each. The pressing ring (21) is made of cushion material and acts to press down the film (19) without damaging it. (37) is a bending fulcrum pin that connects the middle part of the bending arm (36), and (38) is a pair of left and right lifting rods that are erected to intersect with the middle part of the bending arm (36), and a compression coil spring is attached to this. (39), film pressing 1
(21) has been added with an appropriate ground impact force.

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

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

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

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

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

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

(56) is a seed feeding groove provided on the circumferential surface of the feeding roll (51), and (57) is an elastic scraper for measuring the seeds (S) received in the groove (56). Yes, there is a butterfly port on the front wall of the above feeding box (55)) (58)
It is attached to the feed roll (51) so that it can move forward and backward toward the circumferential surface of the feed roll (51). (59) is a cover plate that is also fixed to the rear wall of the feeding box (55) with screws (60), etc., and forms a front and rear pair with the metering scraper (57), and is attached to each other. can also be changed.

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

The above ffi child 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 inserted and removed relative to each other, and the exposed end portion of the rotation support shaft (52) is supported by the feed box (55) in a horizontal penetrating state. , seed feed roll (51)
A ground contact drive wheel (53) is fitted. Ground drive wheel (
53) is made of an elastic material on its circumferential surface, which allows it to be transferred without damaging the film (19), to flatten the film (19) in close contact with the seeding bed (M), and to feed the seeds. The roll (51) will be rotated.

As described above, the seed dispensing roll (51) can be extracted and replaced relative to its rotational support shaft (52), but as shown in the figure, the configuration for this purpose is as follows: A cylindrical bearing 1i (62) is formed protruding only on one side wall surface, and a so-called seed feed roll (51) is operated by a rotating shaft (52) extending horizontally through the bearing wall plate (62). If it is supported in a cantilevered state, the rotation support shaft (52) is attached to the feeding box (55).
) from the remaining open side of the feeding box (55) without having to disassemble it.
In contrast to 2), it can be said that the second layer is advantageous because the seed feeding roll (51) can be inserted and removed.

In addition, as long as the seed feeding roll (51) and its rotational support shaft (52) are in a fitted state where they rotate integrally with each other, their fitting surfaces may be formed with a square cross section, a spline, or a key along the axis of rotation. However, in particular, the key pin (63) as shown in the illustration can be fitted through the rotation support shaft (52).
), and if the pin (63) is inserted to form a key hole (64) in the seed feed roll (51), the feed roll ( 51) is not only rotated integrally, but also its rotational support shaft (52) can be pulled out laterally outward from the bearing wall plate (62) of the feeding box (55), and its key pin ( 63), it is even more reasonable in that it can be prevented at the same time.

The seed falling chute (51) has a seed feeding roll (5
1) has a substantially gutter-shaped cross section with a constant opening width viewed from below on the circumferential surface of 1), and is designed to rotate in an undulating manner about the rotation axis of the feed roll (51) as a pivot point. .

That is, the symbol (65) in the drawing indicates the seed falling shoe 1- (54
), as is clear from Figure 9.11, it has an abbreviated overall shape when viewed from the rear, and one horizontal end extends from the bottom wall of the chute (54). It is fixedly integrated with the mounting piece (66) that comes out using screws (67), etc., while the hanger stay (65)
) serves as a mounting boss (68) and is rotatably and removably fitted onto a cylindrical bearing wall plate (62) projecting downward from the seed dispensing box (55). It is being done.

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

As mentioned above, the seed dropping chute (54) is always suspended in an inclined position downwardly, but the sweeper mounting base (69) is placed in a transverse position at the l&end of the chute (54).
It is fixed and integrated by welding etc.

Of course, even if the mounting base (69) is attached, the 1&end of the chute (54) is in an open state from which the seeds (S) can fall.

At this point, look at the bottom wall of the chute (54) as shown in Figures 12-15. & While keeping the falling action length (L) of the seeds (S) in the chute (54) constant by bending it into a substantially V-shape as viewed from the rear that gradually deepens as it goes to the end, If the tilted installation angle of the ball (which can also be referred to as the crossing angle with the seeding bed or mulch film) (α) is set as steeply as possible (large acute angle in side view), the seed (S ) can be accelerated by -N, which is extremely beneficial.

(70) is an elastic sweeper that sweeps the seeds (S) into the seeding holes (18) of the mulch film (19), and is preferably made of synthetic resin brush bristles. ) is removably attached to the mounting base (69) of the chute (54) with a butterfly bolt (72) or the like. (73) further improves its installation (
The screw hole provided in (69), (74) is the screw hole provided in (74).
Corresponding to 3), an elongated elevating guide hole opened in the holding bracket (71) of the sweeper (70),
As a result, the sweeper (70) for the 11th floor (M)
The installation height of the sweeper (70) can be changed or the brush bristles of the sweeper (70) can be turned upwards to change the position of the sweeper (70).

If the brush bristles of the sweeper (70) are to be reversed upward and the attachment is changed, or if the chute (54) is to be removed from the mounting base (69), use a mulch film (19) as shown in Figures 19 and 20. Regular sowing work without laying can also be carried out without any problems. At that time, the film feeding roll (20) may also be removed as described above.

In addition, when used for such normal sowing work, spikes (instead of the elastic material on the circumferential surface as shown in FIG. It is advantageous to prevent the seed feed roll (51) from idling by replacing the seed roll (75) with a separate one having an overhang and using this in the same manner as above. It is.

Moreover, the brush bristles in particular of the sweeper (70) are arranged in the first position due to the curvature of the base of the bracket (71).
6. As shown in Figure 17, it is shaped like a U-shape or V-shape when viewed from the bottom with the front open. It is designed so that it can be automatically swept into the 114-fold hole (18) in (19).

In order to more completely prevent the seeds (S) from escaping and rolling on the film (19), an elastic cover (76) such as sponge or felt as shown in Figure 9.10 is used.
It is preferable that the sweeper (70) is attached and installed at a position just in front of the sweeper (70). It is also conceivable to omit the use of the separate cover (76) and to form the bristles of the sweeper (70) itself into an endless ring shape when viewed from the bottom.

In the case of rotation, the cover (76) is attached to the integrated bracket (77) between the mounting base (69) of the chute (54) and the bracket (71) of the sweeper (70). Interpose between the front and back, and insert the butterfly port 1-
(72) is also used and is fastened together to the mounting base (69) at the -half time. The elastic cover (76) and sweeper (70〉) allow the seeding hole (
18) is set as a completely surrounding relationship state as shown in FIG. In addition, (78) is a cover (
The bolt receiver opened in the bracket (77) of 76) shows an insertion hole.

(79) is a swinging rod erected from a position near the rear end of the seed dropping chute (54), and a compression coil spring (80) suspended from the swinging rod allows the sweeper (7
0) and the elastic cover (76) are the film (
19), it is designed to have a grounding action with an appropriate elastic force. The lower end of the swing rod (79) is bent into an L-shape when viewed from the rear, and is suspended horizontally through the chute (54) in a stable pivoting state. ) is attached to a pivot pin (82) to a bearing boss (81b) protruding from the rear wall of the seed dispensing box (55).
It is kept connected via. The pivot pin (82) can be freely inserted into and removed from the bearing boss (81b).

In that case, the bearing bosses (81b) of the seed dispensing box (55) into which the pivot pin (82) is received are shown as a pair of upper and lower bearings by different reference numerals (8]a) in Fig. 9.10. As shown, it is integrally extended from the front wall surface of the feeding box (55), and a pair of bearing bosses (81a) and (81b) at the front and rear thereof are arranged symmetrically with each other. A pivot pin (82) that holds the upper end of the swing rod (79) passes through the bearing boss (81b) located at the lower stage of t&111.

In addition, the seed fall shoe 1- (54) is covered with a transparent protective cover (83) as indicated by the chain lines in Figures 12 to 15 to prevent obstacles such as rainwater, clods of soil, and foreign matter from entering. may be prevented. Based on the same idea, it is also conceivable to make the chute (54) itself in the shape of a hollow pipe.

(84) is a seed dispensing device (
C) connecting arm, which connects the film feeding roll (
20) It is curved into an inverted 0-shape when viewed from the side and straddles the top, and the integrated bracket is attached to the l&end of the bracket (8
5) is connected and fixed to the front bearing boss (81a) extending into the seed dispensing box (55) by a pair of upper and lower fixing pins (86). Like the pivot pin (82) of the swing rod (79), the fixing pin (86) can also be inserted into and removed from the bearing boss (81a).

In addition, the fixing pin (86) and the pivot pin (82) can be passed through the front and rear pairs of bearing bosses (81a) and (81b) interchangeably.

In this way, a plurality of bearing bosses (81a) (81b) are arranged symmetrically in the front and back from the seed dispensing box (55).
At the same time, attach a pair of fixing pins (86
) and the pivot pin (82) can be used interchangeably, the rotary support shaft (5) with the above-mentioned ground drive wheel (53)
2), the seed dispensing roll (51) supported in a so-called cantilevered state can be inserted and removed from its rotational support shaft (52), and the hanger stay (65) of the 13 seed drop chute 54) can be inserted into and removed from the dispensing box (55). ) can be inserted into and removed from the cylindrical bearing deck (62) of the seed dispensing device i.
! In particular, the feeding box (55) in (C) can be turned forward or backward and can be installed and used without any trouble by changing its direction. When changing its direction, the seed feed roll (51) and its ground driving wheel (5
3), Seed dropping shoe 1- (54), Swing rod (7
9) etc. are also attached to the feeding box (55).

By doing so, as suggested from Fig. 4, the plurality of seed dispensing devices (C) can be maintained in a suitable weight balance state symmetrical with respect to the center line of movement of the tractor, and the above-mentioned ground drive wheels 53) is also inward (inward facing the center line of progress) so that the seed feed roll (51) can be reliably rotated at all times without the risk of it projecting laterally outward from both the left and right shoulders of the seed bed (M) and floating. As a t91 position, it has the effect of being able to parallelize all.

On the other hand, a shaft cylinder (87) is fixedly integrated with the front end of the connecting arm (84) by welding or the like in a horizontally suspended state. (88) is a mounting bracket which is fitted over the tool bar (46) so as to be able to adjust its movement in the left and right direction, and is made of a short hollow square pipe material. As shown in the figure, the shaft cylinder of the connecting arm (84) (
A pair of left and right ear pieces (89) sandwiching the ear pieces (87) are integrally projected forward. (90) is one of both ears (89)
The bearing opened at the upper position is a hole, from which a horizontal rotation shaft (91) that extends horizontally through the shaft tube (87) is inserted.
The connecting arm (84) is attached to the mounting bracket (8
8) so that it can freely rotate in an undulating manner.

In other words, the above seed feeding device (C) is! # From above the mulch film (19) laid on the seed bed (M), the film feed roll (2
0), and by adjusting the movement of the mounting bracket (88) along the tool bar (46), the 11 types of holes (18) scattered in the film (19) can be seen. On the front-rear center line (Y-Y),
The seed falling chute (54) of each seed feeding device (C)
) can be set for proper matching.

(92) is a screw handle for adjusting the position of the mounting platen (88) for the tool bar (46);
A screw hole (93) opened in the upper wall surface of the bracket (88).
) is screwed in so that it can be moved forward and backward from above.

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

(96a) (96b) (96c) are the cam plates (9
4), and as is clear from FIGS. 21 to 24, the first engagement notch (9
6a) has a hook shape in plan view with the front cut off, whereas the second engagement notch (96b) continuous with this is in a fully open state at the front. Furthermore, the 1.2 engagement notches (96a) and (96b) are arranged on rotation loci having the same radius dimension (old) about the pivot point.

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

That is, by connecting the connecting arm (84) to the mounting bracket (88) to the tool bar (46) via the rotation axis (91), the entire seed feeding device (C) can be attached to the seed bed (M). As mentioned above, the connecting arm (84) is connected to the cam plate (9).
When engaged with the third engagement notch (96c) of 4), since the third engagement notch (96c) is arranged on the rotation locus of the long radius dimension (R2), the 24th. As shown in Figure 27, the seed feeding device (C) will rise slightly above the seeding bed (M).

On the other hand, when the connecting arm (84) is engaged with the first engagement notch (96a) of the cam plate (94), the first engagement notch (96a) rotates by a short radius dimension (R1)! Since the seed dispensing device (C) is placed on the sowing bed (M) in a state where it can carry out its sowing operation without any trouble, the first engagement notch (96a) As is clear from Figure 23.25, the forward rotational movement of the connecting arm (84) is fixedly locked, and its seed dispensing device (C) is entirely It will be kept incapable of rocking motion.

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

The above three types of actions are performed by horizontally rotating the cam plate (94) as a fulcrum for the screw pan 1' (92), and at that time also lifting the seed feeding device (C) if necessary. By selectively engaging and disengaging the first to third engagement notches (96a, 96b, and 96c) and the connecting arm (84), it is possible to switch in a one-touch manner. (97) is a compression coil spring for locking the rotation of the cam plate (94), and is inserted between the upper and lower parts of the neck of the screw handle (92) and the cam plate (94). .

Coil bar 2 (94) that pushes down and fixes the cam plate (94)
If the elastic force 7) is released by screwing back the screw handle (92), the cam plate (94) can be horizontally rotated as described above.

When the connecting arm (84) is engaged with the first engagement notch (9(ia)) of the cam plate (94), the entire seed dispensing device (C) is fixed and locked in a state where it does not swing in an undulating manner. Therefore, if the mulch seeding machine is lifted by a tractor and is driven on a public road, the seed dispensing device (C) may shake against the tool bar (46) or each seed dispensing device (C) may accidentally fall. etc. can be effectively prevented.

Also, the third engagement notch (913c) of the cam plate (94)
When the connecting arm (84) is engaged with the seed dispensing device (
As suggested by the chain line in Fig. 27, the whole of C) can be intentionally maintained in a state where it floats by a certain height (H) from the 11th grade floor (M), so a plurality of them can be When installed in parallel on the tool bar (46) as a linked system, by floating any seed dispensing device (C), it can quickly respond to changes in the number of rows for 11 types of work and the spacing between adjacent rows on the left and right. You will get it. When changing the number of rows, etc., there is no need to operate the seed dispensing device (C), which is unnecessary in use, by pulling it out laterally from the tool bar (46).

Furthermore, (9B) also serves as the rotation axis (91) of the connecting arm (84) for the mounting bracket l-(88) to the tool bar (46), and also serves as the mounting bracket (88).
) is a hanger stay for a groove cutter which is also rotatably connected to the overhanging ear piece (89) of the 21.25.2.
As shown in Figure 6, it has an abbreviated shape when viewed from the side. (99)
are a pair of left and right overhanging tongues attached and integrated with the vertical upper end of the hanger stay (98), which correspond to the overhanging ears (89) of the mounting bracket (88); The bearing has a communication hole (
100) is formed with an opening.

(101) is a hole opened at the lower end of both projecting ear pieces (89) in the above-mentioned mounting bracket (8th), into which the rod receiver is inserted and the pin (102) is horizontally passed through and hung horizontally. There is. (103) is a hole formed through the center of the pin (102), and (104) corresponds to the hole opened in the center of the hanger stay (9B). Yes, both stupid holes (163
) (104), an advancing/retracting rod (105) for adjusting the ground pressure is penetrated so as to be freely movable in the longitudinal direction. The mid-height position of the groove cutter hanger stay (98) suspended from the rotation axis (91) is stably supported by the reciprocating rod (105).

(106) is a compression coil spring which is interposed between the rear end portion of the retractable rod (105) and the hanger stay (98) and is equipped with 1 on the retractable rod (105);
Rotate the adjustment nut (+07) screwed into the front end threaded portion of the forward/backward rod (105) to adjust the forward/backward rod (105).
) in the front-rear direction to adjust the tension of the compression coil spring (106), the ground pressure of the furrower (108) against the seed bed (M) changes in strength.

The groove maker (10B) is extracted as shown in Figure 28.29.
It has a smoothly curved tachibana shape or boat bottom shape as a whole, and its front end is the above-mentioned hanger stay for the groove cutter (9th).
It is attached to the lower end of the mulch film (109) by a butterfly port (109), and extends long along the lower surface of the mulch film (19) to a position immediately after the seed drop chute (54). (+10) is the hanger stay (
The wing bolt (109) opening in 9B) indicates a screw hole for insertion. Then, as the tractor advances, the trencher (108) applies a seed groove 'l1IJ (G) of a constant width to the seed bed (M).

Moreover, the groove cutter (10B) has a U-shaped cross section with a pair of left and right horizontal protruding flange pieces (Ill), and as suggested from Figures 31 and 32, its smooth fjA to the film (19) by both flange pieces (111)
It makes surface contact without sticking, and also stably supports the brush bristles of the sweeper (70) and the cover (76) from below.

(112) is a belt-shaped seed discharge opening cut out in the rear bottom of the cropping device (108), and is kept in a state of 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 groove cutter (108) having a U-shaped cross section are separated by l1IIl! Concave groove (G)
In order to prevent the embankment from falling and entering due to the provision of
It helps in removing soil.

In addition, (114) is a soil covering device which is attached to the trencher (108) in advance and is made into a unit, and consists of a pair of left and right tip bars, and only the front ends of the trencher (108) are attached to the trencher (108). It is fixedly integrated into the front wheel of the vehicle by welding or other means.

In that case, the hanger stay (
98) and the groove cutter (10B) are connected and fixed in a positioning restricted state that prevents horizontal photography as shown in Fig. 30.

And, the pottery (114) gradually became wider from the middle of it, and was made by the artist. Both protruding flange pieces (I
ll) and extends further rearward than the groove maker (108). Therefore, covering soil 5 (1
14) The rear end is given appropriate elasticity as a so-called free end, and the pair of left and right free ends are inwardly directed approximately horizontal bent pieces (115).
As a result, the seeds (S) can be surely covered with soil after sowing.

As is clear from the above description, the connecting arm (84) of the seed dispensing device (C) to the tool bar (46) and the attached unitized furrower (108) of the soil coverr (114)
are pivotally connected to a common mounting bracket (88), so after adjusting the movement of the mounting bracket (88) in the left and right direction along the tool bar (46), position and fix it with the screw handle (92). By doing so, as an overall unit of the seed feeding device (C) and the furrowing device (108), the longitudinal center line (Y-Y) of the seeding holes (18) dotted in the mulch film (19) is They can be installed upwards simultaneously in a so-called one-touch operation, and in a correct matching manner.

In addition, under the above-mentioned relationship conditions, the groove maker (108)
The pre-covering vessel (114) is assembled into a unit, and its front end is attached to the hanger stay (98) for 1+'6 vessels.
and the above-mentioned mounting bracket via the rotation axis (91)]・(
The ground pressure of the compression coil spring (106) is applied to the whole body by the reciprocating rod (105) that passes through the middle part of the hanger stay (98). Even if the ground pressure is adjusted to be stronger or weaker, the precise relationship between the maker (108) and the earthen coverer (114) is always maintained constant. This means that the overall multi-seeding work can be made more appropriate and stable.

Furthermore, (116) is the extension center frame (4) described above.
(117) This is a hanger frame for a compression roller that is extended in a suspended state from 4) toward the rear, and as is clear from Figure 3.33, there is an extension mass at its lower end.
When viewed from the side, it has an almost inverted character shape. (11B) is a pivot pin that is located slightly behind the hanger post (45) of the tool bar (46) and extends horizontally through the middle of the extended center frame (44). ) by attaching the front end of the hanger frame (11
6) is designed to be able to perform undulating rocking motion around the pivot pin (11B).

(119) is the hanger frame (1
In order to stop the middle part of the hanger frame (16), it is a support pin that is fixed and hung horizontally on the 1 & 2 ends of the extended center frame (44), and has an inverted 1-shape when viewed from the rear. ), a compression coil spring (120) is installed in the vertically extending screw shaft portion to apply an appropriate ground pressure to the entire pressure roller, which will be described later. (121) is the coil spring (+20)
This is an adjustment nut for adjusting the tension of the
It is fitted onto the threaded shaft portion of the support pin (119) from above.

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

(124) is a rotation center hole opened in the main part of the adjustment plate (123), (125a) (125b) (125c)
is a virtual rotation r! that maintains a constant radial dimension from its center hole (124). There are a plurality of adjustment holes opened in the circular arc periphery of the adjustment plate (123) so as to be scattered on the h locus, and the old movement angle range ( β) is set in advance to approximately 90 degrees.

(126) is a pressure roller operation support formed in a forked fork shape sandwiching the adjustment Fj and (123),
A pair of left and right pressure roller support shafts (12
7) are extended horizontally and integrally, and intersect with each other by a certain angle (γ).

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

The operation columns (126) of both of the pressure rollers (128) are provided with adjustment holes (125a) (
125b) An upper and lower pair of the surrounding angle selection hole (129) that alternatively matches with (125C) and the pivot hole (130) that also corresponds to the center hole (124> of the adjustment plate (123)) form an opening. Since these have adjustment pins (131)
By horizontally penetrating the pair of upper and lower fixing pins (132), the pressing roller (12B> is attached to the middle extension mass (127) of the hanger frame (116),
Can be installed stably and rigidly.

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

In use, the selection hole (129) of the operation column (126)
and the adjustment hole (125a) of the adjustment plate (123) (125
b) Adjustment pin (131) passing through (125c)
) is inserted and removed, and the operating column (126) is rotated within the rotation angle range (β) of approximately 90 degrees. When maintained in a standing posture, the pair of left and right pressure roller support shafts (127) are on the same line (
Z - Z), and are in a state of intersecting mountain shape in rear view as shown in FIG. At the same time, the mulch film (19) can be brought into close contact with the seed bed (M) without wrinkling and in a state of overall tension.

On the other hand, as shown in FIG. 34(n), the operating column (126) is
When the position is fixed in the approximately horizontal prone position as seen from the side, the pair of left and right pressure roller support shafts (127) are in the 36th position.
When viewed from the rear as shown in Figure (B), they are correctly aligned on the same horizontal line <X-X>, and they intersect in a backward mountain shape when viewed from above as shown in Figure 35 (It). At the same time, the sowing bed (M) is shaped into a flat ridge shape by the pressing roller (128), and at the same time, a film (19) is applied to the sowing bed (M).
) can be brought into close contact with the overall tension, so that a suitable suppressing effect can be exerted.

In the illustrated embodiment, the present invention is applied to a multi-seeding machine, but it goes without saying that the present invention can also be applied to a normal traction-type seeding machine in which the film (19) is not laid.

<Effects of the Invention> As described above, in the present invention, the tool bar (46) towed by the power main machine is fitted with a mounting bracket (88) that can adjust its movement in the left and right direction, and its adjusted state is adjusted upward. The seed dispensing device (C) of the seeder is positioned and fixed by the screw handle (92) screwed into the mounting bracket (88) so that it can move forward and backward from the mounting bracket (88).
) and a seed feed roll (5) from its hopper (50).
1) and a rotating support shaft (
52), one ground drive wheel (53) for roll rotation drive attached to the spindle (52), and the same roll (51).
) Falling chute of seeds (S) (54)
The front end of the arch-shaped connecting arm (84) that integrally projects forward from the hopper (50) is attached to the mounting bracket (88).
) by means of a horizontal pivot axis (91) to the seed dispensing device (
C) is connected so as to be able to swing in an undulating manner with respect to the seeding bed <M), and several types of engagement notches ( 96a)
(96b) (96c) Engagement cam I (9
4) is pivotally attached to the mounting bracket (8th) by the screw handle (92), and the engaging cam plate (94) is rotated around the vertical fulcrum of the screw handle (92),
By selectively engaging the engagement notches (96a) (96b) (96c) with the connecting arm (84), the entire seed feeding device (C) can be moved at a certain height (
(2) Since it is set so that it can be locked and held in a state where it floats by (), it has the effect of easily and completely solving the problems of the prior art mentioned at the beginning.

In other words, the seed dispensing device (C) of the present invention is an assembled unit body including a rotary shaft (52) for each independent seed dispensing roll (51), a ground drive wheel (53) for driving the rotation of the roll, etc. It is shaped like a full bar (
The front end of the connecting arm (84) to the mounting bracket l-(88) is connected to the mounting bracket l-(88) by a horizontal pivot axis (91) so as to be able to raise and lower the entire seed dispensing device (C). The seed dispensing device W (C) moves the seed bed (M) by horizontal rotation of the engaging cam plate (94).
It can also be locked and held in a floating state, so if this is installed in parallel as a multiple on the tool bar (46), the desired seed dispensing device (C)
By floating only the seeds, the number of sowing rows can be changed freely.

For example, the seed feeding device (C) is used for six young rows.
Even if it is a type VI in which six seeders are installed in parallel, it can be used for seeding work as is for two or four rows, and the sowing machine itself is extremely versatile.

In addition, the screw handle (92), which serves as the rotational fulcrum of the engagement cam plate (94), also has the function of positioning and adjusting the mounting bracket (88) with respect to the tool bar (46), so it is extremely rational as a necessary configuration. In addition, it can also be used as a switching operation to maintain the seed dispensing device (C) floating or restoratively lowering it to perform an up-and-down operation.
This can be done easily and efficiently in a so-called one-touch manner.

Furthermore, since the seed feeding device (C) as a whole including its seed dropping chute (54) can be moved up and down with respect to the seeding bed (M), the seeding machine of the present invention can be used in the illustrated embodiment. As a mulch seeding machine, even if it is used for seeding work from above the mulch film (19), it can maintain stable 11-type action while following the ups and downs of the film (19) without damaging the film (19). It can be done.

In particular, the horizontal pivot axis (91) of the connecting arm (84)
) is passed through and horizontally suspended from the mounting bracket (88) to a pair of left and right ears (89) that integrally project forward, and the rotation axis (91) also serves as the seed dispensing device (C).
If the front ends of the cropping device (10B) and the soil covering device (14), which extend directly below the seed falling chute (54) that forms the On the other hand, when adjusting the movement of the connecting arm (84) of the seed dispensing device (C), all you have to do is move the mounting bracket (88) in the left and right direction, and the groove cutter (108) or soil covering device can be attached to it. (114) moves automatically and maintains an accurate working relationship corresponding to the seed dispensing device (C), so from that point of view it can be said to be a rational design, and the spacing between sowing rows is maintained. It also has excellent operability when responding to changes.

In addition, the seed storage hopper (50) of the seed dispensing device (C) is formed into an assembled unit with a seed dispensing box (55) communicating with the lower side thereof, and a pair of front and rear units can be used interchangeably from the dispensing box (55). Bearing boss (81a) (
81b) and press the front bearing boss (
Attach the rear end of the connecting arm (84) to the fixing pin (81a).
86), and the ground drive wheel (53) is removably attached to one exposed end of the rotating support shaft (52), which is also supported in a penetrating horizontal manner by the feeding box (55). On the other hand, if the seed feeding roll (51) is installed so that it can be freely inserted into the rotating support shaft (52) from the remaining other end and the opening bottom of the feeding box (55) can be covered, the seed feeding roll (51
) can be replaced with a different one with a different seed feeding groove (56) depending on changes in seed size, type, etc.
It is extremely easy to do.

Furthermore, since the seed dispensing device (C) itself can face forward or backward and be attached to the tool bar (46) via its connecting arm (84), when multiple of them are installed in parallel. In addition, this can be placed in parallel with the tool bar (46) in an overall symmetrical arrangement with a suitable weight balance, and its ground drive wheels (
53) from projecting and floating from both the left and right shoulders of the seed bed (M), which would cause drive loss of the feed roll (51), can be effectively prevented.

[Brief explanation of the drawing]

Fig. 1 is an overall schematic slope view of a mulch seeding machine to which the present invention is applied, Fig. 2 is an overall schematic slope view of the same, and Fig. 3 is a side view showing the arrangement of its film laying device and seed feeding device. , Fig. 4 is a rear view showing the parallel installation state of the seed dispensing device, and Fig. 5 is an extracted view of the seed dispensing device.
6 is a perspective view extracting and showing the installation state of the film laying device, FIG. 7.8 is a front view showing a comparison of the braking force strength adjustment state on the film feeding roll, and FIG. 9 10.11 is a partially cutaway side sectional view and rear sectional view of the seed dispensing device, and FIG. 12.13 is an extracted view of the seed dropping chute. The top view and rear view, Figures 14 and 15 are 1 in Figure 12,
114 and 15-15, FIG. 16 is a slope view showing the elastic seed sweeper, FIG. 17 is a plan view showing the working relationship between the sweeper and the seeding hole of the film, and FIG. FIG. 18 is a plan view showing the arrangement relationship between the sweeper and the elastic cover, FIG. 19 is a side view corresponding to FIG. 3 and showing a non-mulch seeding operation state, and FIG. 21 is an exploded perspective view showing the installation relationship between the connecting arm and the groove cutter with respect to the mounting bracket on the tool bar, and FIG. 22 is the 22 in FIG. 3.
23 and 24 are cross-sectional plan views respectively showing a fixed set state in which the seed dispensing device cannot swing and a floating set state from the seeding bed, respectively, corresponding to FIG. 22, Figure 25 is a cross-sectional view taken along the line 25-25 in Figure 23.
Figure 6 is a cross-sectional view taken along the line 26-26 in Figure 24, Figure 27 is an overall side view showing the seed dispensing device in a floating set state, and Figures 28 and 29 are an assembled unit of the furrower and coverr. 30 is a slope view seen from both front and back sides.
31 is an enlarged cross-sectional view taken along line 30, FIG. 31 is a cross-sectional rear view showing the state in which a sowing groove is provided by a furrowing device, FIG. 32 is a cross-sectional rear view showing the state in which a soil covering device works to cover seeds, and FIG.
The figure is an exploded slope view showing the installation state of the pressure roller, No. 34.
Figure (1) (It) is a side view showing the angle change state of the suppression roller in comparison, Figure 35 (1) (■) and Figure 36
Figure (1) (I[) is a plan view and rear view respectively corresponding to Figure 34 (I) (■). (18)...Seeding hole (19)...Multi film (46)...Tool bar (50)...Seed storage hopper (51)...Seed delivery roll (52)...Rotation shaft (53)...Ground drive wheel (54)...Seed dropping chute (55)...Seed feeding box (8]a) (81b) ・Bearing boss (84)...
Connection arm (88)...Mounting bracket (89)...Ear piece (91), (92), (94), (96a), (96b), (96c), (10B) (114), ( A) ・ (B) ・ (C) ・ (G) ・ (H) (M) ・ (S) ・ Rotation axis, screw handle, retaining cam plate, first engagement notch, second engagement notch, third 3 Engagement notch/furrower/coverer Rotary tilling device/film laying device/seed feeding device Seeding ditch/constant height/seeding bed/seed Figure 30 Figure 31 Shearing Figure 32

Claims (1)

[Claims] 1. A mounting bracket (8
8) and adjust its adjustment state using a screw handle (88) screwed into the mounting bracket (88) so that it can move forward and backward from above.
92), while the seed dispensing device (C) of the seeder is positioned and fixed by the seed storage hopper (50).
) and a seed feed roll (5) from its hopper (50).
1) and a rotating support shaft (
52), a ground drive wheel (53) for roll rotation drive attached to the spindle (52), and a roll (51)
The front end of the arch-shaped connecting arm (84) integrally extends forward from the hopper (50), The entire seed dispensing device (C) is connected to the mounting bracket (88) by a horizontal rotation axis (91) so as to be able to swing up and down with respect to the seeding bed (M), and its connecting arm ( The engagement cam plate (94) provided with several types of engagement notches (96a, 96b, and 96c) that removably engage with the rising midway portion of the screw handle (
92) to the mounting bracket (88), and the engagement cam plate (94) is rotated around the vertical fulcrum of the screw handle (92) to open the engagement notch (96a) (9
6b) (96c) is selectively engaged with the connecting arm (84), so that the entire seed dispensing device (C) is suspended from the seeding bed (M) by a certain height (H),
A floating device for a towed seeding machine characterized by being configured to be locked and held. 2. The seed storage hopper (50) of the seed dispensing device (C) is formed into an assembled unit with a seed dispensing box (55) communicating with the lower side thereof, and a pair of front and rear units can be used interchangeably from the dispensing box (55). The bearing bosses (81a) (81b) are integrally extended, and the connecting arm (81a) is attached to the front bearing boss (81a).
4) The rear end is removably connected and integrated with the fixing pin (86), and is also attached to the exposed end of the rotating support shaft (52) which is also supported in a penetrating horizontal state to the feeding box (55). While the ground drive wheel (53) is attached so that it can be inserted and removed, the delivery roll (51) can be inserted and removed from the other end of the rotating support shaft (52), and the opening bottom of the delivery box (55) can be covered. 2. The floating device for a traction seeding machine according to claim 1, wherein the floating device is attached to a traction seeding machine. 3. The horizontal rotation axis (91) of the connecting arm (84) is
A seed dropping chute (C) forms a seed dispensing device (C) by extending horizontally through a pair of left and right ears (89) that integrally protrudes from the mounting bracket (88) facing forward, and also serving as its rotation axis (91). Claim 1 characterized in that the front end portions of the trencher (108) and the earthen coverr (114) extending directly below the trencher (108) and the earthen coverr (114) are also attached in a suspended state as a whole.
Floating device of the described traction seeding machine.