JP2000287518A - Automatic controller for controlling height against ridge in vine cutter for sweet potato - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic controller for controlling height against a ridge in vine cutter for sweet potato capable of finely cutting vines of sweet potato as bar as possible without fear of breaking a mulching film covering the ridge. SOLUTION: This cutter comprises a sensor roller 60 which is hung from the rear end of a flail mower body 18 for cutting vines, rolling on the surface of a ridge A to detect the height of the ridge, a detected ridge height signal is fed back from the sensor roller 60 to an oil pressure control valve of an oil cylinder device 10 on a tractor body T through a mechanical link system or electric wiring, the height of the flail mower body 18 against the ridge is kept constant by the oil cylinder device 10, and flail blades 28 are liftably controlled in the range same as the vertical movement range of the sensor roller 60.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic control device for the height of a furrow in a sweet potato cutting machine.

[0002]

2. Description of the Related Art Japanese Utility Model Publication No. 6-18417 is known as a sweet potato cutting machine which is considered to be the closest to the present invention, in which a multi-film (F) covering the surface of a ridge (A) is used. Both sides (f) and the vine (D) of the sweet potato (C) which is growing on the hem (B) of the ridge are pushed up to the upper surface of the ridge (A) by a pair of left and right dividers (16), and the pushing is performed. Cut the vine (D) with the cutting blade (1) of the vine (9).
Cutting is performed according to 1).

[0003]

However, a number of cutting blades (11) forming the vine (9) of the above-mentioned invention are known.
Is divided into a V-shape or a V-shape as a hammer knife or a flare blade, and the rotary shaft (1
0), the right and left tail wheels (39) running along the ridges are raised and lowered to estimate the height of the vine body (9) against the ridges. Even if the ridges (A) are adjusted properly, there is actually a height difference on the upper surface of the ridge (A). As a result, the cutting blade (11) of the vine (9) is inevitably required and the multi-film (F) , And the multi-film (F) is broken into small pieces at random by the cutting edge in the branched state, and the ridge (A) follows.
And the entire multi-film (F) cannot be quickly and completely peeled off.

However, if the height of the ridge of the vine body (9) is adjusted and set to a higher value so as to anticipate the above-mentioned height difference, the upper surface of the ridge (A) will The vine (D) of the sticky sweet potato (C) cannot be cut by the cutting blade (11), and if the vine (D) is not finely cut later by a scythe or the like, it will remain long. ) Is wound around the rotary tilling shaft during the subsequent tilling work in the field.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an automatic control device for the height of a furrow in a sweet potato cutter, which is operated by a hydraulic cylinder device of a tractor body. A flare mower body for crossing over the ridge is connected to the device, and a number of flare blades for planting are planted from the rotating blade shaft of the flare mower body and driven to rotate by the power taken out from the tractor body. Sweet potato picking machine

A ridge height detecting sensor roller rolling along the upper surface of the ridge is pivotally supported from the rear end of the flare mower main body to the lower end of the roller suspension arm, and the ridge height by the sensor roller is supported. The feedback signal is fed back to the hydraulic control valve of the hydraulic cylinder device by a mechanical link movement mechanism or electric wiring, and the hydraulic cylinder device is used to keep the height of the ridge of the flare mower main body constant at all times. It is characterized in that the flare blade of the flare mower body is automatically controlled to move up and down by the same amount as the vertical movement of the sensor roller.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 shows a use state in which a multi-cultivated sweet potato cutting machine (I) is connected to a tractor body (T). Reference numeral (10) denotes a hydraulic cylinder device mounted on the rear upper surface of the tractor body (T), and a pair of left and right lift arms (11) is vertically moved by a hydraulic control valve (not shown) attached to the hydraulic cylinder device. It has become.

FIG. 1 (L) shows a traction device for suspending a vine cutter. In the illustrated example, a three-point link mechanism comprising one top link (12) and a pair of left and right lower links (13) is shown. The lower link (13) is pivotally connected to the lift arm (11) via a lift rod (14). (15) is the mounting base for the top link, (1)
Reference numeral 6) denotes a power take-out shaft that is sent rearward from the tractor body (T), and its take-out rotational power passes through the universal joint shaft (17) (indicated by its cover boot in the example in the figure), and the wrench breaks out. It is transmitted to the input shaft of the machine (I) described later.

Next, regarding the cutting machine (I) for harvesting sweet potatoes, in FIGS. 1 to 4, (18) shows a flare mower body for cutting which crosses over the ridge (A);
(19) is a horizontal main frame which extends long in the left-right direction of the flare mower main body (18), is made of a round pipe material, and a transmission bevel gear case (20) is fixedly installed at an intermediate portion thereof. ing. Reference numeral (21) denotes an input shaft extending forward from the bevel gear case (20), and is removably and operatively connected to the power take-off shaft (16) of the tractor body (T).

Reference numerals (22) and (23) denote a pair of left and right side plates supporting both ends of the main frame (19), one of which forms a mounting base for the transmission belt case (24). (25) is both side plates (2
2) A reinforcing beam of a square pipe material horizontally fixed between the rear end portions in (23), (26) is a lower end portion of the other side plate (23), and the belt case (24). The input shaft (21) is a horizontal rotary blade shaft which is supported in a state of bridging with the lower end of the input shaft (21).
1 and 2 through a transmission belt (not shown) in a direction indicated by an arrow (F) in FIGS.

(27) A number of blade mounts fixedly integrated with the circumferential surface of the blade shaft (26) in an array distribution state at a constant pitch along the longitudinal direction of the rotary blade shaft (26). , (28) denote flare blades (hammer knives) for pivoting in a state of being implanted in the respective blade mounts (27). The ridges (A) are used to form the flare mower body (18). And an overall effective cutting width (W) corresponding to the ridge grooves (G) on both sides thereof. (29)
Is a pivot bolt for the flare blade (28) with respect to each blade mount (27), and is parallel to the rotary blade shaft (26).

More specifically, a large number of flare blades (28) planted from the blade mount (27) of the rotary blade shaft (26) correctly face a 180-degree diameter line as shown in FIGS. As a set, each set is a rotary blade shaft (2
Adjacent competitors along the longitudinal direction 6) are arranged in a crosswise crosswise radially symmetric form that is alternately orthogonal.

Further, most of the flare blades (28) are formed in a V-shape or a V-shape in which the cutting edge is completely branched in order to cut the vine (M) as finely as possible. ) Are closest to the upper surface of the ridge (A) (preferably, two sets of intermediate flares blades (28a) sandwiching the vertical center line (OO) of the ridge (A)). For cutting the root portion (M1) of the vine (M) sticking to the upper surface of the ridge (A), a straight-shaped cutting edge (almost parallel to the vertical center line (OO) of the ridge (A)) is cut. a)
And a straight film edge portion (a) is formed to be slightly longer by a certain length (Y) than a branch edge portion (b) to be formed, and a multi-film ( Until 30), it is not cut at random into small pieces.

That is, when the root (M1) of the vine (M) is cut by the intermediate flare blade (28a) facing the upper surface of the ridge (A), the straight blade tip (a) should be in the film (30). ), Each time the set is rotated by 180 degrees, only a cut is made in the multi-film (30) in a dotted line state, and then the entire multi-film (30) is ridged (A). ) Can be stripped off quickly and smoothly.

In comparison with the intermediate flare blade (28a), the peripheral flare blade (28b) at the remaining position gradually moving away from the upper surface of the ridge (A) scoops from both skirt portions of the ridge (A). The middle part (M2) of the raised vine (M) will be cut finely.

(31) are both side plates (22) (2)
3) A pair of right and left vine scooping arm holding sheaths attached and fixed to the reinforcing beam (25) from below, all of which penetrate in a forwardly inclined position at a fixed angle (α).
(32) is a vine scooping arm inserted into each of the holding sheaths (31). The sharp lower end portion of the arm advances through the ridge groove (G), so that the arms on both sides from the upper surface of the ridge (A). The midway portion (M2) of the vine (M) that prospers to the furrow groove (G) is hooked and guided to the flare blade (28) of the flare mower body (18).

In this case, the vine scooping arm (32) is moved forward and backward along the holding sheath (31) so that the lower end thereof is always lowered into the ridge groove (G). The working length can also be adjusted. (33) is an adjustment bolt for positioning and fixing the working length of the vine picking arm (32).

When the vine picking arm (32) is viewed from the side of the vine cutter (I), the vine picking arm (32) is in an overlapping state in which it is tangential to the flare blade (28).
It goes without saying that the flare blade (28) is arranged between the adjacent left and right sides so as not to interfere with the flare blade (28).

(34) The flare blade (2)
8) A cover plate that covers the entire upper surface of (8), and has an arch shape that curves along a flare blade (28), and its rear end is connected to the reinforcing beam (25) of both side plates (22) and (23). It is attached and integrated. (35) is a rubber dripping covering the entire rear surface of the flare blade (28).

Reference numeral (36) denotes a top link holder which is integrally extended obliquely forward and upward from the transmission bevel gear case (20), and a horizontal top pin (37) at the distal end of the extension is provided with a tractor body ( T) is engaged with the top link (12) in a detachable manner.

(38) is the flare mower main body (1).
8) A pair of left and right lower link holders integrally protruded forward from the main frame (19), and horizontal lower pins (39) protruding laterally from the protruding front ends of both lower link holders (38). The tractor body (T) is removably engaged with the lower link (13), and the hydraulic cylinder device (10) of the tractor body (T) causes the entire tractor (I) to move up and down. Becomes

If the whole of the tractor (I) is moved up and down by the hydraulic cylinder device (10) of the tractor body (T), the tractor (T) can be suspended from the tractor body (T). The portable traction device (L) is not limited to the three-point link mechanism shown in the drawings, and other types may be employed.

(40) is the flare mower body (1)
8) A pair of left and right tail wheels that define the lower limit of the furrow height (H) in (8), and can be freely raised and lowered to the rear end of the flare mower main body (18) through the following parallel link movement mechanism. Hanged on.

That is, both side plates (22) and (23)
The fixing mast (41) of the square pipe material is integrally erected from the intermediate portion of the reinforcing beam (25). Reference numeral (42) denotes a support stay for stably holding the fixed mast (41) at an intermediate height position, and is integrally extended rearward from the bevel gear case (20).

Reference numeral (43) denotes a horizontal toolbar which is laid horizontally behind the reinforcing beam (25), which is also made of a square pipe material and has a pair of left and right first link arms (44).
Are pivotally connected to horizontal reinforcing beams (25) of both side plates (22) and (23). (45) (4
6) is a pair of pivot bolts at the front and rear.

Reference numeral (47) denotes a pair of left and right tail wheel support rods which are slidably fitted in the toolbar (43) in the left-right direction.
0) rolls on the ridge grooves (G) located on both sides of the ridge (A). Reference numeral (48) denotes an adjustment bolt for fixing the slide position of the tail wheel support rod (47) along the toolbar (43). Needless to say, the pair of left and right tail wheels (40) are made of rubber tire wheels.

From the middle part of the toolbar (43), a hanging rod (4) of a square pipe material parallel to the fixed mast (41) is provided.
9) is vertically erect. In addition, the space between the upper end of the suspension rod (49) and the rearward end of the support stay (42) is provided via a second link arm (50) parallel to the first link arm (44). It is pivotally connected.
(51) and (52) are a pair of front and rear pivot bolts.

(53) is the second link arm (50)
And a nut (54) inserted at the upper end thereof. (55)
Is a handle for adjusting the raising and lowering of the tail wheel (40), and the screw shaft (56) at the tip of the handle is screwed and fastened to the nut (54). ,
The two link arms (44) and (50) and the tail wheel (40) suspended thereby move up and down. As a result, the ridge height (H) of the flare mower body (18) is adjusted and set in advance.

Reference numeral (57) denotes a support piece for supporting the base end of the elevation adjustment handle (55), which is integrally extended from the bevel gear case (20). Reference numeral (58) designates a piece which also serves as a middle part of the lifting / lowering adjustment handle (55), and is inserted and installed on a holding piece (59) which stands upright from the upper end of the fixed mast (41).

The above-described vine cutter (I) is further provided with a ridge height detecting sensor roller (60) that rolls on the upper surface of the ridge (A), and the signal detected by the ridge height detecting sensor roller is transmitted to the ridge (A). By feeding back to the hydraulic control valve of the hydraulic cylinder device (10) in the tractor body (T), the flare blades (28) of the flare mower main body (18) are kept constant at the opposite ridge height (H) at all times. )
The automatically controlled intermediate flare blade (28a) is automatically moved up and down by the same amount as the vertical movement of the sensor roller (60).

That is, in FIG. 1 to FIG.
1) is a fixed roller suspension arm, the upper end of which is mounted on a roller suspension arm mounting base to a middle part of a reinforcing beam (25) which crosses the left and right sides of the side plates (22) and (23). It is pivotally connected via (62). (6
3) is the horizontal pivot bolt.

The sensor roller (60) is rotatably attached to the lower end of the roller suspension arm (61) which is in a downwardly inclined state via a support shaft (64). In order to stably roll along the upper surface of the ridge (A), the sensor roller (60) is preferably shaped like a drum as shown in the figure.

(65) is the roller suspension arm (6)
As a front-back positional relationship corresponding to the upper end of 1), a cover plate (3) that covers the entire upper surface of the flare blade (28)
4) To the middle part, the mounting base for sensor arm (6
6) is a sensor arm pivotally mounted via the same, and has a substantially L-shape or V-shape viewed from the side, and turns in the front-rear direction around a horizontal pivot bolt (67) in the middle of the sensor arm. To work.

(68) is one end (rear end) of the sensor arm (65) and the roller suspension arm (61).
Is a sensor link of a fixed length for pivotally connecting the front and rear with the upper end of the sensor roller, and moves forward and backward with the vertical movement of the sensor roller (60).

(69) is a long sensor wire having flexibility, the rear end of which is the sensor arm (6).
5) is connected to the other end (front end). Similarly, the front end of the sensor wire (69) passes through the outer wall surface of the case of the hydraulic cylinder device (10) in the tractor body (T), to the active lever (70) protruded from the hydraulic control valve, and the response arm (71). It is linked via a response link (72).

Here, the response arm (71) has a substantially inverted L-shape in a side view, and a middle part of the response arm (71) is connected to the outer wall of the case of the hydraulic cylinder device (10) by a horizontal pivot bolt (7).
3) It is rotatably mounted via the same, and also has a response arm (71) and the active lever (70).
Are pivotally connected to each other by a response link (72) of a fixed length that moves forward and backward. The movement of the active lever (70) is converted into an electric signal and transmitted to the hydraulic control valve of the hydraulic cylinder device (10).

In this case, the wiring system connecting the roller suspension arm (61) on the side of the opener (I) and the active lever (70) on the side of the tractor body (T) is connected to the tractor body (T). The power take-off shaft (16) on the side and the transmission shaft connecting the input shaft (21) on the opener (I) side are located at positions eccentric to either the left or the right.

The sensor wire (69) is of a form commonly called a Bowden cable or a release wire, and it goes without saying that the working length can be adjusted and set to an appropriate tension state.

In the first embodiment illustrated in FIGS. 1 to 7, the signal detected by the ridge height detecting sensor roller (60) is fed back to the hydraulic control valve on the tractor body (T) side as a means for feeding back the signal. Although a mechanical link movement mechanism is employed, the detection signal of the ridge height by the sensor roller (60) is suggested in the second embodiment of FIGS. May be fed back as an electric signal.

That is, a rotary potentiometer or other rotary angle sensor (7) for converting the vertical movement of the sensor roller (60) along the upper surface of the ridge (A) into a voltage magnitude.
4) is used in place of the sensor arm (65), and the rotation angle sensor (7) on the side of the cutter (I).
4) and the hydraulic control valve on the tractor body (T) side are connected and wired by an energizing cable (75) instead of the sensor wire (69), and the height of the ridge of the flare mower body (18) is also increased. In order to keep the height (H) constant at all times, the flare blade (28) is automatically moved up and down by the same amount as the vertical movement of the sensor roller (60).

In this case, in any of the first and second embodiments, the flare mower main body (18) for veiling is provided.
The flare blade (28) moves up and down according to the height difference of the ridge (A), so there is no risk of breaking the multi-film (30) coated on the ridge (A), and the sweet potato vine (M) Can be reliably and stably cut.

Particularly, among the plurality of flare blades (28) forming the flare mower body (18), the ridges (A) are provided.
Middle flare blade (28a) at the position closest to the upper surface of the
The overall length of the straight cutting edge (a) substantially parallel to the vertical center line (OO) of the ridge (A) is longer than the branching cutting edge (b) by a certain length (Y). If the multi-film (30) is formed in a navy-shaped shape, the vines (M) of sweet potatoes (M) are stuck to the upper surface of the ridge (A) without giving even cuts in dotted lines to the multi-film (30). M1) can be cut as finely as possible, which is more and more advantageous.

In the first embodiment shown in FIGS. 1 to 7, the reinforcing beam (2) located at the rear end of the flare mower body (18) is used.
From 5), a pair of left and right vine scooping arms (32) are extended and installed in a downwardly inclined state at a fixed angle (α), and the middle part (M2) of the vine (M) caught by the vine groove is removed. Although it is designed to guide the scooping up from (G) to the flare blade (28), a configuration as described in the second embodiment of FIGS.

That is, reference numeral (76) in FIGS. 8 and 9 denotes a pair of left and right mounting stays (7) which are integrally extended obliquely forward and downward from the cover plate (34) of the flare blade (28).
Reference numeral 7) denotes a pair of left and right swing frames which are bent substantially in an L-shape when viewed from the side, and each of the swing frames is provided with a horizontal pivot bolt (78) at a halfway height position at the leading end of the mounting stay (76). Being pivoted.

Numeral (79) denotes a vine-scooping disk rotatably attached to the lower end of each swing frame (77) via a support shaft (80), which rolls in a ridge groove (G). As a circular saw.
(81) is also downwardly integrated in the form of an arc that curves from the vicinity of the lower end of each swing frame (77) in parallel with the plate surface of the vine scooping disc (79) and along the rear surface of the disc (79). Is a vine scooping guide that protrudes from the vine, whereby the vine (M) scooped from the furrow (G)
However, by rotation of the vine scooping disc (79),
The flare blade (28) is reliably guided without fear of falling off.

Reference numeral (82) denotes a tension coil spring that is connected and suspended between the upper and lower ends of the swing frames (77) and the base end of the mounting stay (76). The scooping guide (81) and the vine scooping disc (79) are always provided with an elastic pressing force that comes into contact with the ridge groove (G).

Therefore, the flare mower body (1)
The ridge height (H) of 8) is controlled to rise and fall according to the height difference of the ridge (A). However, the vine picking disc (79) and the vine picking guide (81) are completely affected by this. Without
The ridges (M) are always grounded by the ridges (G), so that the vines (M) can be scooped up stably by themselves, and there is an advantage that no special adjustment work of the installation height is required.

The other configuration of the second embodiment of the present invention is substantially the same as that of the first embodiment.
In FIGS. 8 and 9, only the reference numerals corresponding to those in FIGS. 1 to 7 are entered, and the detailed description thereof is omitted.

Next, the method of picking multi-cultivated sweet potatoes will be described with reference to the first embodiment shown in FIGS. 1 to 7. The height of the furrow (H) in the flare mower body (18) for picking will be described. The pair of left and right tail wheels (40) that define the lower limit of ()) are adjusted and set in advance so as to float from the ridge groove (G) by turning the lifting / lowering adjustment handle (55) as shown in FIG. Alternatively, by removing the tail wheel (40), the lower limit of the ridge height (H) is released.

The flare mower body (18) traverses the upper surface of the ridge (A) and the pair of left and right vine scooping arms (32) sinks into the ridge groove (G). If the tractor body (T) is used for towing as a state, the sensor roller (60) that rolls on the upper surface of the ridge (A) with the advance of the loosing machine (I) automatically increases the ridge height. And the detection signal is transmitted from the sensor roller (60) to the roller suspension arm (61), the sensor arm (65), the sensor wire (69), the response arm (71), the response link (72), and the like. After that, the hydraulic cylinder device (10) in the tractor body (T)
The hydraulic cylinder device (10) automatically feeds the flare mower body (18) on the loosing machine (I) side approximately the same amount as the vertical movement of the sensor roller (60). The lifting and lowering is controlled, and the height of the ridge is adjusted (the above-mentioned flare blade (2)
8) Vertical spacing between the cutting edge and the upper surface of the ridge (A))
(H) is always kept constant.

The flare mower body (18) for cutting
Since the edge of the flare blade (28) that forms the ridge (A) moves up and down along the upper surface thereof in accordance with the height difference of the ridge (A),
The intermediate flare blade (28a) at the position closest to the upper surface of the ridge (A) is formed in a straight form substantially parallel to the vertical center line (OO) of the ridge (A), and the cutting edge portion is compared. Even if the ridge (A) is dimensioned to be long, the multi-film (30) covering the ridge (A) does not break, and the vine (M) sticks to the upper surface of the ridge (A). The film (30) can be cut as finely and reliably as possible from the root (M1), and the work can be smoothly and quickly peeled off from the ridge (A) following the entire film (30).

On the other hand, a pair of left and right vine scooping arms (3
2) In anticipation of the amount of lifting and lowering of the flare mower body (18), the lower end portion is adjusted and set so that it sinks deeply into the ridge groove (G).
The vine (M) can be scooped up from the furrow (G) without any trouble as the ridge progresses, and the middle part (M2) of the vine (M) is also finely cut by the peripheral flare blade (28b). You get.

In this regard, if the vine scooping means shown in the second embodiment of FIGS. 8 and 9 is adopted, the vine scooping disc (79) and the vine scooping guide (81) are always provided with ridges ( Since the contact pressure is applied to G), it is not necessary to even adjust the length of the vine scooping arm (32) in anticipation of the vertical movement of the flare mower body (18). The vine (M) can be reliably and stably scooped up from the furrow (G).

In any of the first and second embodiments,
A changeover switch (not shown) for electrically turning on / off the automatic control action of the height of the furrow (H) is installed on the upper surface of the rear wheel fender and other areas around the driver's seat in the tractor body (T). In this case, the automatic control action is released by turning off the changeover switch, and the pair of right and left tail wheels (40) is brought into contact with the ridge groove (G) so that the sweet potatoes can be spread out. It is also possible to provide for work.

[0055]

As described above, in the present invention, the hydraulic cylinder device (1) of the tractor body (T) is used as an automatic control device for the height of the furrow (H) in the sweet potato cutting machine (I).
0) to the traction device (L) which is moved up and down by the flaring mower body (1) crossing over the ridge (A).
8), and a large number of flare blades (28) for planting from the rotary blade shaft (26) of the flare mower main body (18) are rotationally driven by power taken out from the tractor body (T). Sweet potato picking machine (I)

A ridge height detecting sensor roller (60) that rolls along the upper surface of the ridge (A) from the rear end of the flare mower body (18) to the lower end of the roller suspension arm (61). And the detection signal of the ridge height by the sensor roller (60) is sent to the hydraulic cylinder device (1) by a mechanical link movement mechanism or electric wiring.
The hydraulic cylinder valve (10) is fed back to the hydraulic control valve of (0) to keep the ridge height (H) of the flare mower body (18) constant at all times. Since the blade (28) is automatically controlled to move up and down by the same amount as the vertical movement of the sensor roller (60), there is an effect that all the problems of the prior art described at the beginning can be improved.

That is, according to the above configuration of the present invention, the sensor roller (60) that rolls on the upper surface of the ridge (A) with the progress of the tractor (I) connected to the tractor body (T) is used. ) Automatically detects the ridge height, and the detection signal is fed back to the hydraulic control valve of the hydraulic cylinder device (10) in the tractor body (T), and the ridge height is detected by the hydraulic cylinder device (10). The flare blade (28) forming the flare mower body (18) of the cutter (I) is automatically controlled to move up and down by the same amount as the vertical movement of the sensor roller (60). Since the height (H) is always kept constant, the multi-film (30) coated on the ridge (A)
The sweet potato vine (M) can be reliably cut without breaking the potatoes, and the film (30) is smoothly and quickly peeled off from the ridge (A) following the entire film (30), so that the sweet potato can be harvested lightly and efficiently. There is an effect to get.

In particular, if the configuration of claim 2 is adopted,
A straight edge (a) substantially parallel to the vertical center line (OO) of the ridge (A) is provided, and the straight edge (a) has a certain length than the branched edge (b) to be provided. The vine (M) can be cut as finely as possible from the root (M1) attached to the upper surface of the ridge (A) by the intermediate flare blade (28a) formed longer by the length (Y), Rotary tilling work in the field after harvesting the sweet potatoes has the effect of being able to perform the work efficiently without hindrance. In that case, the multi-film (30) is not likely to be broken.
It can be said that the profit is remarkably large.

Further, if the configuration of claim 3 is adopted,
The vine scooping disc (79) and the vine scooping guide (81) are always provided with a ground contact pressure against the ridge groove (G), so that the ridge height of the flare mower body (18) against the ridge is raised. Although the height (H) is controlled according to the height difference of the ridge (A), it is not affected by this, so that the vine (M) is surely and stably scooped up from the ridge groove (G), The flare mower body (18) can be guided to the flare blade (28), and the middle part (M2) of the vine (M) can be cut finely by the peripheral flare blade (28b).

[Brief description of the drawings]

FIG. 1 is an overall schematic side view showing a sweet potato cutting machine connected to a tractor body.

FIG. 2 is an enlarged side view of the vine cutter extracted from FIG. 1;

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is a rear view of FIG. 2;

FIG. 5 is a front view showing a corresponding positional relationship between a Freer mower main body and a ridge.

FIG. 6 is an enlarged sectional view taken along line 6-6 of FIG.

FIG. 7 is a front view showing a vine-opening action state.

FIG. 8 is a side view showing a second embodiment of the present invention corresponding to FIG.

FIG. 9 is a rear view of FIG. 8;

[Explanation of symbols]

 (10) ・ Hydraulic cylinder device (18) ・ Frail mower main body (26) ・ Rotating blade shaft (28) ・ Frail blade (28a) ・ Intermediate frail blade (28b) ・ Peripheral frail blade (30) ・ Multi film (32)・ Vine scooping arm (34) ・ Cover plate (40) ・ Tail wheel (60) ・ Sensor roller (61) ・ Roller suspension arm (65) ・ Sensor arm (68) ・ Sensor link (69) ・ Sensor wire ( 70) ・ Active lever (71) ・ Response arm (72) ・ Response link (74) ・ Rotation angle sensor (75) ・ Electrification cable (76) ・ Mounting stay (77) ・ Swing frame (79) ・ Spinning Raising disc (81), vine scooping guide (82), tension coil spring (A), ridge (G), ridge groove (H), height against ridge (I), vine Rescue machine (L), traction device (M), vine (T), tractor body (Y), constant length (a), straight edge (b), branch edge

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[Procedure amendment]

[Submission date] January 13, 2000 (2000.1.1)
3)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Detailed description of the invention

[Correction method] Change

[Correction contents]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic control device for the height of a furrow in a sweet potato cutting machine.

[0002]

2. Description of the Related Art Japanese Utility Model Publication No. 6-18417 is known as a sweet potato cutting machine which is considered to be the closest to the present invention, in which a multi-film (F) covering the surface of a ridge (A) is used. Both sides (f) and the vine (D) of the sweet potato (C) which is growing on the hem (B) of the ridge are pushed up to the upper surface of the ridge (A) by a pair of left and right dividers (16), and the pushing is performed. Cut the vine (D) with the cutting blade (1) of the vine (9).
Cutting is performed according to 1).

[0003]

However, a number of cutting blades (11) forming the vine (9) of the above-mentioned invention are known.
Is divided into a V-shape or a V-shape as a hammer knife or a flare blade, and the rotary shaft (1
0), the right and left tail wheels (39) running along the ridges are raised and lowered to estimate the height of the vine body (9) against the ridges. Even if the ridges (A) are adjusted properly, there is actually a height difference on the upper surface of the ridge (A). As a result, the cutting blade (11) of the vine (9) is inevitably required and the multi-film (F) , And the multi-film (F) is broken into small pieces at random by the cutting edge in the branched state, and the ridge (A) follows.
And the entire multi-film (F) cannot be quickly and completely peeled off.

However, if the height of the ridge of the vine body (9) is adjusted and set to a higher value so as to anticipate the above-mentioned height difference, the upper surface of the ridge (A) will The vine (D) of the sticky sweet potato (C) cannot be cut by the cutting blade (11), and if the vine (D) is not finely cut later by a scythe or the like, it will remain long. ) Is wound around the rotary tilling shaft during the subsequent tilling work in the field.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an automatic control device for the height of a furrow in a sweet potato cutter, which is operated by a hydraulic cylinder device of a tractor body. Multi-fill to equipment
The flare mower body for cutting is to be connected and used to cross over the ridge covered with the mooring system, and a large number of flare blades for cutting are set up radially symmetrically from the rotating blade axis of the flare mower body. In a sweet potato cutting machine that is rotated and driven by the power taken out of the tractor body,

[0006] A number of flanges forming the above-mentioned Frehr mower body.
Position the rail blade closest to the upper surface of the ridge.
Only a few sets of intermediate flare blades are burred on the top of the ridge
Ridges to cut the roots of the vines
This is the straight edge that is almost parallel to the vertical center line of
Overall length that is longer by a certain length than their bifurcated cutting edges
Molded into a mold,

[0007] The root of the vine is cut off by the intermediate frail blade.
When cutting, the long straight edge is
Even if you touch the film,
Not only to give a cut,

[0008] From the rear end of the flare mower body to the lower rear
Lower end of roller suspension arm that is suspended in a tilted state
Hourglass sensor for detecting ridge height that rolls along the top of the ridge
-Roller supported by the roller and the ridge by the sensor roller
The height detection signal is transmitted by mechanical link movement mechanism or electrical wiring.
Hydraulic control valve of the above hydraulic cylinder device
Feedback to

The hydraulic cylinder device of the tractor body
The ridge height of the flare mower body is always constant
In order to keep, the root of the vine in the flare mower body
Move the intermediate flare blade for cutting up and down the sensor roller.
Automatically lifts and lowers by almost the same amount as the moving amount
It is characterized by having done.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
To explain, Fig. 1 shows a mulling cultivation machine for sweet potatoes.
Shows the state of use where (I) is connected to the tractor body (T)
(10) is the rear upper surface of the tractor body (T)
Hydraulic cylinder device mounted on
The hydraulic control valve (not shown)
The lift arm (11) is moved up and down.
You.

[0011] (L) is a traction device for hanging a vine cutter.
In the illustrated example, one top link (12) and a pair of left and right
Shows a three-point link mechanism consisting of a lower link (13)
And both lower links (13) are lift rods
Pivotally connected to the lift arm (11) via (14)
Have been. (15) is the mounting base for the top link, (1)
6) Power sent backward from the tractor body (T)
It is a take-out shaft, and its take-out rotational power is
Point shaft (17) (in the example shown,
Suggests. ), And later described of the vine cutter (I)
It will be transmitted to the input shaft.

Next, a picking machine for harvesting sweet potatoes
Regarding (I), in FIGS.
The flare mower body for crossing over the ridge (A),
(19) is the horizontal direction of the flare mower body (18)
A horizontal mainframe that extends long along
Bevel gearbox for transmission
The base (20) is fixedly installed. (21)
An input shaft extending forward from the bell gear case (20).
And the power take-off shaft (16) of the tractor body (T)
It will be removably power-coupled.

(22) and (23) are the main frames.
(19) A pair of left and right side plates supporting both end portions
One of which is the attachment of the transmission belt case (24).
Has a base. (25) is both side plates (2
2) Horizontally fixed between the rear end comrades in (23)
Reinforced beam of a crossed square pipe material, (26) is the other
A lower end of the side plate (23) and the belt
The shaft is set so as to lie between the lower end of the case (24) and each other.
The input rotary shaft (21).
From a power transmission belt (not shown)
So that it is driven to rotate in the directions shown by the arrows (F) 1, 2
Has become.

(27) is a longitudinal direction of the rotary blade shaft (26).
The arrangement distribution state at a constant pitch along the direction
Multiple blade attachments fixedly integrated with the circumferential surface of the blade shaft (26)
Table, (28) is implanted in each blade mount (27)
With a flare blade (hammer knife) pivoted to
There is one that forms the above-mentioned Frehr mower body (18)
Corresponding to the ridge (A) and the ridge grooves (G) on both sides thereof.
It has an overall effective cutting working width (W). (29)
Is the pivot of the flare blade (28) with respect to each blade mount (27).
Support bolt, which is parallel to the rotary blade shaft (26).
You.

More specifically, the cutting edge of the rotary blade shaft (26).
A large number of flare blades (28) planted from the base (27)
Is correctly oriented on a 180 degree diameter line as shown in FIGS.
As one set that fits, each set is a rotary blade shaft (2
6) Adjacent comrades along the longitudinal direction
Are arranged in a radially symmetrical configuration that forms a cross
Because

In addition, many of the above-mentioned flare blades (28)
To cut the vine (M) as finely as possible,
It is formed in a branching V-shape or R-shape, but especially ridges
Several sets of intermediate frames located closest to the upper surface of (A)
Blade (28a) (preferably the vertical center line of the ridge (A)
(O-O) two sets of intermediate flare blades (28a))
Ke is the root of the vine (M) sticking to the upper surface of the ridge (A)
For cutting the base part (M1), the ridge (A)
Straight edge that is almost parallel to the vertical center line (OO)
(A), and the straight edge portion (a) is
A fixed length (Y) longer than the branched tip (b)
It has a long, generally rectangular shape and a ridge (A)
Up to the multi-film (30) covering the
It is designed not to cut randomly and finely.

That is, while the ridge (A) is closest to the upper surface,
The root of the vine (M) by means of the inter-frer blade (28a)
When cutting (M1), its long straight blade tip
If (a) touches the above multi-film (30)
However, each time the set is rotated by 180 degrees,
The film 30 is provided with a cut line in a dotted line state.
And then the entire multi-film (30) is ridged
(A) to be able to strip quickly and smoothly
It is used.

The ratio to the intermediate flare blade (28a)
In comparison, the residue that gradually moves away from the upper surface of the ridge (A)
The peripheral flare blade (28b) at the position is the both skirts of the ridge (A)
The middle part (M2) of the vine (M) that is scooped from the part
Will be severely cut.

(31) are both side plates (22) (2)
3) It is attached and fixed to the reinforcing beam (25) from below from below.
Pair of left and right vine scooping arms
Also penetrates in a forwardly inclined position at a constant angle (α).
(32) is a scoop of vines inserted in each holding sheath (31)
Raised arm, the sharp lower end of which goes through the groove (G)
Ridges on both sides from the top of the ridge (A)
The middle part (M2) of the vine (M) that prospers to the groove (G)
Hook the frame around the flare mower body (18).
And guided to scoop up toward the blade (28b).

In this case, the picking arm (32) is
Operate forward and backward along the holding sheath (31)
In this way, the lower end is always settled in the ridge groove (G).
In order to adjust the working length,
You. (33) is the working length of the vine scooping arm (32)
It is an adjustment bolt for positioning and fixing the height.

The vine picking arm (32) is a vine cutter
When viewed from the side of (I), the flare blade (28)
On the other hand, they are in a tangent overlapping state,
It is arranged between the adjacent left and right sides of the flare blade (28).
So that it does not interfere with the flair blade (28).
Needless to say,

(34) The flare blade (2)
8) A cover plate that covers the entire top surface of
It has an arch shape that curves along the blade (28).
The rear ends of the two side plates (22) and (23)
It is integrated with the strong beam (25). (35) is
Similarly, with a rubber dripping that covers the entire rear surface of the Frehr blade (28)
is there.

(36) is a transmission bevel gear case.
From the top (20)
A link holder that has a horizontal top at its tip
Pin (37) is the top link of the tractor body (T)
(12) and is locked so as to be freely detachable.

(38) is the flare mower body (1)
8) Dispatch forward from the main frame (19)
Pair of left and right lower link holders
Sideways from the leading end of the lower link holder (38)
The horizontal lower pin (39) protruding from the tractor machine
Removably locked to the lower link (13) of the body (T)
The hydraulic cylinder device of the tractor body (T)
By means of (10), the whole of the opener (I) is raised and lowered.
It will be.

The tractor (I) is entirely composed of the tractor.
-Raised by the hydraulic cylinder device (10) of the machine (T)
If lowered, the tractor (T)
Figure 1 shows the traction device (L) for suspension of
Not only the three-point link mechanism shown, but also other models
You may.

(40) is the flare mower body (1)
8) A pair of right and left that defines the lower limit of the height of the furrow (H) in
Tail wheel, and through the following parallel link motion mechanism
To raise and lower the flare mower body (18) to the rear end.
It is hung freely.

That is, both side plates (22) and (23)
From the middle of the reinforcing beam (25)
The fixed mast (41) of the ip material is vertically
You. (42) is the mid-height position of the fixed mast (41)
Is a support stay that stably holds the
It is integrally dispatched rearward from the case (20).

(43) is behind the reinforcing beam (25).
A horizontal toolbar that spans the
A pair of left and right first link arms (44) made of ip material
Horizontal complement of both side plates (22) and (23)
It is pivotally connected to the strong beam (25). (45) (4
6) is a pair of pivot bolts at the front and rear.

(47) Left and right on the toolbar (43)
A pair of left and right tail wheels that can be slid freely in any direction
A tail wheel (4) which is a supporting rod,
0) rolls the ridge grooves (G) located on both sides of the ridge (A).
It works. (48) is the toolbar
Fix the slide position of the tail wheel support rod (47) along (43).
It is an adjustment bolt for fixing. In addition, a pair of right and left tail wheels
Needless to say, (40) consists of rubber tire wheels.

Also, from the middle part of the toolbar (43)
Is a hanging rod (4) of a square pipe material parallel to the fixed mast (41).
9) is vertically erect. Moreover, the hanging rod
The upper end of (49) and the rear end of the support stay (42).
Between the first link arm (44) and the first link arm (44).
It is pivotally connected via a two-link arm (50).
(51) and (52) are a pair of front and rear pivot bolts.

(53) is the second link arm (50)
Is a holding piece that stands vertically from the middle of the
A nut (54) is inserted and installed in the portion. (55)
Is a lifting and lowering adjustment handle for the tail wheel (40),
The screw shaft (56) at the tip is screwed to the nut (54).
Because it is connected, if this is rotated, the first,
Two link arms (44) and (50), which are suspended by
The tail wheel (40) moves up and down. As a result,
The height of the furrow mower body (18) is predicted
It is adjusted and set.

(57) is a base of the elevation adjustment handle (55)
A support piece that covers the end of the bevel gear case
They have been sent out from (20). (58) is the same
This is a piece that handles the middle part of the lifting adjustment handle (55).
And a pinch that stands vertically from the upper end of the fixed mast (41).
It is interposed and installed on the piece (59).

In the above-mentioned vine cutter (I), ridges are further provided.
A ridge height detection sensor roller that rolls on the upper surface of (A)
(60) is also provided so that the detected signal
Hydraulic cylinder device in the tractor body (T)
Feedback to the hydraulic control valve of (10)
Let the height of the furrow mower body (18) against the ridges
To keep (H) constant at all times, cut the root of the vine (M)
Connect the cutting intermediate flare blade (28a) to the sensor roller (6
Automatically raises and lowers by almost the same amount as the vertical movement of 0)
It has become so.

That is, in FIG. 1 to FIG.
1) is a fixed roller suspension arm, the upper end of which is
Sideways between the left and right sides of the side plates (22) and (23)
Roller suspension to the middle of the reinforcing beam (25)
It is pivotally mounted via a mounting base for the arm (62). (6
3) is the horizontal pivot bolt.

Then, the row which is thereafter in a downwardly inclined state
At the lower end of the suspension arm (61)
(60) is freely rotatable through the support shaft (64).
It is being done. The sensor roller (60)
In order to be able to roll stably along the upper surface of the ridge (A),
It is shaped like a drum as shown.

(65) is the roller suspension arm (6)
As the front-back positional relationship corresponding to the upper end of 1),
Cover plate (3) covering the entire upper surface of the blade (28).
4) To the middle part, the mounting base for sensor arm (6
6) a sensor arm pivotally connected via
It has an almost L-shaped or V-shaped vision,
Rotate back and forth around horizontal pivot bolt (67)
Works.

(68) is the sensor arm (65)
One end (rear end) and the roller suspension arm (61)
A fixed length sensor that pivotally connects the front and rear
Surlink, up and down movement of sensor roller (60)
It moves back and forth with movement.

(69) is a long sensor wire having flexibility
Ear, the rear end of which is the sensor arm (6
5) is connected to the other end (front end). Also Sen
The front end of the surwire (69) is the tractor body
Outside the case of the hydraulic cylinder device (10) in (T)
Dispatched from the hydraulic control valve through the wall
Response arm (71) to the active lever (70)
It is linked via a response link (72).

Here , the response arm (71) is substantially in a side view.
It has an inverted L-shape, with the hydraulic cylinder
Place a horizontal pivot bolt (7
3) is rotatably mounted via
The response arm (71) and the active lever (70)
A constant length response link that moves back and forth between
It is pivotally connected by (72). Soshi
The movement of the active lever (70)
Converted and hydraulic control of hydraulic cylinder device (10)
To be transmitted to the rule valve.

In such a case, the roller on the side of the above-mentioned opener (I)
-The lifting arm (61) and the tractor body (T) side
The wiring system connecting the active lever (70)
Power take-off shaft (16) on the tractor body (T) side
Transmission axis connecting the input shaft (21) on the machine (I) side.
In a position eccentric to either the left or right.

The sensor wire (69) is
Form commonly called den cable or release wire
Product, the working length of which is adjusted to an appropriate tension.
It goes without saying that you can do it.

In the first embodiment shown in FIGS.
Is detected by the ridge height detection sensor roller (60)
The signal that was sent to the hydraulic control on the tractor body (T) side
Mechanical feedback as a means to feed back to the
Link movement mechanism was adopted, but its sensor roller
The detection signal of the ridge height according to (60) is used in the second embodiment of FIGS.
As suggested in the form, the oil on the tractor body (T) side
Feedback as electric signal to pressure control valve
You may let it.

That is, the sensor line along the upper surface of the ridge (A)
To convert the vertical movement of the roller (60) into a voltage magnitude
Type potentiometer and other rotation angle sensors (7
4) is adopted instead of the sensor arm (65).
At the same time, the rotation angle sensor (7
4) Hydraulic control valve on tractor body (T) side
And a power cable instead of the sensor wire (69).
Bull (75) to connect and wire
The height of the furrow (H) of the Lehr mower body (18) is always constant
Intermediate flare for cutting the root of the vine to maintain it
The blade (28a) is moved up and down of the sensor roller (60).
The lift is automatically controlled by the same amount as the moving amount.

Then , any one of the first and second embodiments can be used.
, The flare mower body (18)
Moves up and down according to the height difference of the ridge (A).
Break the multi-film (30) coated on (A)
There is no danger, and sweet potato vines (M) are reliably and stably
Can be cut.

In particular, the flare mower body (18)
The ridge (A) of the numerous flare blades (28) to be formed
Middle flare blade (28a) at the position closest to the upper surface of the
Is the root of the vine (M) sticking to the upper surface of the ridge (A)
The ridge (A) for cutting the part (M1)
Straight edge parallel to the vertical center line (OO)
The part (a) is more constant than the branch-shaped cutting edge part (b) to be obtained.
It is shaped like an overall letter that is long by the length (Y)
In the above-mentioned multi-film (30), a cut line in a dotted line
Without giving the vine, the sweet potato vine (M)
From the root (M1) attached to the top surface as finely as possible
You can cut it.

In the first embodiment shown in FIGS.
The reinforcing beam (2) located at the rear end of the mower body (18)
From 5), the pair of left and right vine scooping arms (32) are fixed
Install it overhanging at the angle (α),
The middle part (M2) of the vine (M) caught by the
Scoop up from the furrow (G) to the surrounding flare blade (28b)
It is designed to be guided,
However, the configuration as shown in the second embodiment of FIGS.
Can be used.

That is, reference numeral (76) in FIGS.
Diagonally lower front from the cover plate (34) of the blade (28)
A pair of left and right mounting stays that are integrally sent to
7) is a pair of left and right swinging fins bent in an approximately L-shape viewed from the side.
Pivot bolt with a horizontal position
According to (78), the leading end of the mounting stay (76) is dispatched.
Each part is pivoted to the section.

(79) is the lower end of each swing frame (77)
Vine scoop mounted to the section through a spindle (80)
It is a lifting disk that rolls in the ridge groove (G).
It is stamped from a metal plate into a circular saw shape.
(81) is also near the lower end of each swing frame (77).
Parallel to the surface of the vine scooping disc (79), and
Arc shape that curves along the rear surface of the disc (79)
With a vine scooping guide that protrudes downwards
Vines (M) scooped up from the furrow (G)
However, by rotation of the vine scooping disc (79),
It is securely guided to the flare blade (28) without fear of falling off.
Is to be

(82) of each of the swing frames (77)
Front and back phases of the upper end and the base end of each mounting stay (76)
It is a tension coil spring that is connected and suspended between
Therefore, the vine picking guide (81) and the vine picking
Squeeze pressure is applied to the disc (79), which always contacts the ridge groove (G).
Power is given.

Therefore, the flare mower body (1)
8) The height of the ridge (H) rises and falls according to the height difference of the ridge (A)
The vine scooping disc (79) and vine scooping
The lifting guide (81) is not affected by this at all,
Always grounded with ridges (G), vines (M) are self-stable and stable
It will scoop up and special adjustment of the installation height
There is an advantage that no adjustment work is required.

Note that the other components in the second embodiment of the present invention
Is substantially the same as the first embodiment,
In FIG. 8 and FIG.
The detailed description is omitted.

Next, the picking work of the cultivated sweet potatoes
The method will be described based on the first embodiment of FIGS.
Ridge height on the flare mower body (18)
A pair of left and right tail wheels (40) that define the lower limit of the height (H)
Rotating operation of the lifting / lowering adjustment handle (55) as shown in FIG.
Adjustable set to float from ridge groove (G) in advance
Or by removing its tail wheel (40).
Thus, the lower limit of the ridge height (H) is released.

Then, the opener (I) is connected to the
The arm body (18) crosses the upper surface of the ridge (A),
Vine scooping arm (32) sinks into ridge (G)
Use the tractor body (T) for towing as the engagement state
Then, with the progress of the vine cutter (I), the ridge (A)
The sensor roller (60) that rolls on the upper surface,
The height is detected, and the detection signal is
Roller (60) to roller suspension arm (61)
Surarm (65), sensor wire (69), response
The arm (71), the response link (72), etc.
Hydraulic cylinder device (10) in the fuselage body (T)
Feedback to the hydraulic control valve
Hydraulic cylinder device (10) is used to open the cutter (I)
The flare mower body (18) is a sensor roller
Automatically raises and lowers by the same amount as the vertical movement of (60)
The height of the furrow (the above-mentioned intermediate frail blade)
On the straight edge (a) and ridge (A) of (28a)
(H) is always kept constant.

The flare mower body (18) for cutting
The edge of the flare blade (28) that forms the edge is the height of the ridge (A)
Depending on the difference, it moves up and down like tracing the top surface,
Intermediate frail at the position closest to the upper surface of the ridge (A)
The blade (28a) is aligned with the vertical center line (OO) of the ridge (A).
Formed into a roughly parallel straight form, the straight shape
The cutting edge (a) is longer than the branching cutting edge (b) from now on.
Even if it is dimensioned, its long straight blade tip
Multi-film covering ridge (A) with (a)
(30) There is no risk of being randomly broken at random.
And the vine (M) sticks to the upper surface of the ridge (A)
From the root (M1) where it is cut
And the entire film (30) can be ridged
It is also possible to smoothly and quickly strip from (A)
Becomes

On the other hand, a pair of left and right vine scooping arms (3
2) Predict the amount of lifting and lowering of the flare mower body (18)
In anticipation, sink the lower end deep into the furrow groove (G)
By setting it so that it can be adjusted, the cutter
Vines (M) from the furrows (G) as they progress
The vine (M) in the middle (M2)
By the peripheral flare blade (28b), it is still fine
You can cut it.

This point is shown in the second embodiment in FIGS.
If vine scooping means is adopted,
The ridge is always provided on the scoop (79) and the vine scooping guide (81).
(G) because of the contact pressure
Precipitating the amount of lifting and lowering of the mower body (18)
No need to adjust the length of the lifting arm (32).
Nevertheless, the vines (M) from the furrows (G) are surely cheap.
You can scoop up well.

In any of the first and second embodiments,
The automatic control of the height of the furrow (H) is electrically turned on and off.
Switch (not shown) for operating the
Of the rear wheel fender and other parts of the aircraft
Around the driver's seat,
The automatic control action is released by turning off the selector switch
And a pair of left and right tail wheels (40) contact the ridge groove (G).
It can also be used for chopping sweet potatoes
Becomes

[0058]

As described above, in the present invention, the sweet potato shredder
Automatic control device for the height of the furrow (H) in the machine (I)
And the hydraulic cylinder device (1) of the tractor body (T)
0) to the traction device (L) that is raised and lowered by the
The film (30) must be traversed over the covered ridges (A).
Flare mower body (18)
And the rotary blade shaft (2) of the flare mower body (18).
6) Many flares for setting up in radially symmetric form
The blade (28) from the tractor body (T)
The sweet potato picking machine (I), which is driven to rotate by the output power
And

Forming the above-mentioned flare mower body (18)
The upper surface of the ridge (A) among a number of flair blades (28)
Sets of intermediate flare blades (28
Only a) is a vine sticking to the upper surface of the ridge (A)
For cutting the root (M1) of (M),
A strike almost parallel to the vertical center line (OO) of the ridge (A)
The rate-shaped cutting edge (a) is a branch-shaped cutting edge (b) from now on.
Longer overall length by a certain length (Y)
And

The vine is formed by the intermediate flare blade (28a).
When cutting the root (M1) of (M),
The rate-shaped cutting edge (a) becomes a multi-film (30)
Even if touched, the film (30) will be in a dotted line state.
Not only to provide a cut,

Rear end of the flare mower body (18)
Roller suspension arm that hangs down from the rear
A ridge rolling along the upper surface of the ridge (A) to the lower end of (61)
Hourglass sensor roller (60) for height detection
Of the ridge height by the sensor roller (60)
Signal is transmitted by mechanical link movement mechanism or electric wiring.
Hydraulic control valve of hydraulic cylinder device (10)
Feedback to

The hydraulic cylinder of the tractor body (T)
-Flare mower body (18) by means of device (10)
To keep the height (H) of the furrow constant at all times
During cutting of root of vine (M) in mower body (18)
The middle Freil blade (28a) is connected to the sensor roller (6).
Automatically raises and lowers by almost the same amount as the vertical movement of 0)
The prior art section mentioned at the beginning
This has the effect of improving the entire subject.

That is, according to the above configuration of the present invention, the track
Of the opener (I) connected to the aircraft (T)
, The drum-shaped cell that rolls on the upper surface of the ridge (A) stably.
Sensor roller (60) automatically detects the ridge height.
And the detection signal is sent to the tractor body (T).
Hydraulic control valve of hydraulic cylinder device (10)
Feedback to the hydraulic cylinder device
(10) The flare mower body of the debunker (I)
The flare blade (28) that forms (18) is the sensor
Automatically approximately the same amount as the vertical movement of the roller (60)
The ridge height (H) is always
A mulch covered with ridges (A) to keep it constant
There is no danger of breaking the film (30) and sweet potato vines
(M) can be cut reliably, and the film
Peel smoothly and quickly from ridge (A) following the whole of (30).
It has the effect of harvesting sweet potatoes quickly and efficiently.
is there.

In particular, the position closest to the upper surface of the ridge (A)
Of the intermediate flare blades (28a) in the ridge (A)
Straight edge that is almost parallel to the vertical center line (OO)
(A), and the straight edge portion (a) is
A fixed length (Y) longer than the branched tip (b)
In order to form a long, generally rectangular shape,
The vine (M) is converted into the vine (M) by
From the root (M1) attached to the upper surface of the ridge (A)
It can be cut as finely as possible.
Rotary tillage work in a field with high efficiency
Cuts the root (M1) of the vine (M)
When the intermediate frail blade (28a)
G-shaped edge (a) should touch multi-film (30)
Even if the film (30) is cut in dotted lines
And randomly break it at random
Since there is no, the workability of stripping from the ridge (A) is remarkable.
Excellent.

Further, if the configuration of claim 2 is adopted,
The vine scooping disc (79) and vine scooping guide
In (81), a contact pressure is always applied to the ridge groove (G).
Of the flare mower body (18)
The ridge height (H) is controlled according to the height difference of the ridge (A).
Is not affected by this,
(G) Scoop the vine (M) reliably and reliably from
Guides to the Fleur blade (28) of the Lehr mower body (18)
Around the middle part (M2) of the vine (M).
The effect of being able to cut finely by the side flare blade (28b)
is there.

Claims (3)

[Claims] 1. A traction device (L) which is moved up and down by a hydraulic cylinder device (10) of a tractor body (T).
The flare mower body (1) for crossing over the ridge (A)
8), and a large number of flare blades (28) for planting from the rotary blade shaft (26) of the flare mower main body (18) are rotationally driven by power taken out from the tractor body (T). The ridge height rolling along the upper surface of the ridge (A) to the lower end of the roller suspension arm (61) suspended from the rear end of the flare mower body (18). Sensor roller (6
0), and the detection signal of the ridge height by the sensor roller (60) is fed back to the hydraulic control valve of the hydraulic cylinder device (10) by a mechanical link motion mechanism or electric wiring, and the hydraulic pressure is In order to keep the ridge height (H) of the flare mower body (18) constant at all times by the cylinder device (10), the flare blade (2) of the flare mower body (18) is kept constant.
8) The automatic control device for the height of the furrow in the sweet potato cutting machine, wherein the height of the sensor roller (60) is automatically controlled by the same amount as the vertical movement of the sensor roller (60). 2. A plurality of flare blades (28) planted from a rotating blade shaft (26) of a flare mower body (18) for cutting.
Of the ridge (A), the intermediate flare blade (28a) at the position closest to the upper surface of the ridge (A) is moved to the vertical center line (O-
The straight potion (a), which is substantially parallel to O), is shaped into an overall C-shape that is longer than the branch tip (b) by a certain length (Y), so that the sweet potato vine (M) is formed. ) Is attached to the upper surface of the ridge (A) (M1)
2. The automatic control device for the height of a furrow in a sweet potato cutting machine according to claim 1, wherein the automatic cutting device is set so as to be able to be cut finely from the cut. 3. A pair of left and right mounting stays (7) extending obliquely forward and downward from a cover rate (34) covering the entire upper surface of the flare blade (28) in the flare mower body (18) for cutting.
6), and an approximately L-shaped swinging frame (77) in a side view is pivotally attached to the leading end of each of the extending portions to roll along the ridge groove (G). A circular saw-shaped vine scooping disc (79) is pivotally supported on the lower end of each swing frame (77), and the vine scooping disc (79) is inserted from near the lower end of each swing frame (77). ) An arc-shaped vine picking guide (81) that curves almost parallel to the rear surface
The tension coil spring (82) which constantly applies the ground elastic pressure to the ridge groove (G) is applied to the vine scooping disc (79) and the vine scooping guide (81) while swinging each of the rockers. Frame (7
The automatic control of the height of the furrow in the sweet potato cutting machine according to claim 1, characterized in that the upper end of (7) and the base end of each of the mounting stays (76) are connected and linked between the front and rear. apparatus.