JP2568425Y2 - Potato digging machine - Google Patents

Description

[Detailed description of the invention]

[0001]

INVENTION The present invention relates to, it dug a two-ridge, potatoes Horito machine will place the potatoes in rows on the ground surface met
Te, rows to be driven to rotate in particular mutually inside the left and right Hori Toja
Relates to those vertically ring Coulter to the left and right opposite.

[0002]

2. Description of the Related Art Recently, in order to harvest potatoes with less dirt and good appearance quality, two ridges are dug out with a potato digging machine.
This was placed on 圃 field surface in rows, dried soil attached to the surface by performing a dry land, pick up this pickup harvester, sorted by human power during carried in sorting conveyor of the pickup harvester, the container Harvesting methods to house are widespread.

A potato digging machine used in the above-mentioned harvesting method is disclosed in , for example, Japanese Utility Model Laid-Open No. 4-43925.
So that a frame is provided at a front portion of the frame.
Digging device for two ridges consisting of a rotating disk and a digging blade
Potatoes mounted on the frame and lifted by the digging device
Common transport and discharge to the rear of the frame
In a potato excavator equipped with a beer,
On the lower side, crush the ground surface behind the excavation device
Potato with a crushing roller installed and being conveyed on the conveyor
A guide that moves the ridge to the center of each ridge.
There are things that are .

[0004] In addition, Japanese Utility Model Publication No. 49-6439 discloses
Were provided on both sides of the shovel attached to the tip of the sieving device.
A horse bell that enables the rotating disk to be forcibly rotated by power
A potato drilling machine is disclosed . Generally rotating discs, Horito
A cut is made in the soil by the working width of the blade, and the next digging blade
If only the bottom is cut, the soil is cut into a rectangular cross section.
It is to make it.

[0005]

The present invention is to provide a way, be provided with a rolling call data on both sides of the drilling Toja is, there is no any problem in potato photo machine for the first ridge. However, when excavating two ridges, the rolling coulters that are vertically installed on the inside of the left and right digging blades are inevitably narrow in the space between them. And the traction resistance is increased.

[0006] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a potato excavator for digging two ridges, which is located inside the left and right excavation blades.
It is an object of the present invention to provide a potato excavator that can prevent soil from being clogged between rolling coulters that are vertically installed facing right .

[0007]

To achieve the above object of the Invention The present invention your information, and framework to those connecting the frame to the rear of the tractor, the photo blade downwards inside the frame tip downward It features a left and right tilting, respectively vertically provided so as to be height adjusted rolling Coulter outside the left and right drilling Toja. Also, the second conveyor is continuously provided behind the first conveyor and the first conveyor to Koso capable attrition soil behind the left and right drilling Toja, transportable on the conveyor
The potato Okunaka disposed a pair of left and right potato shifting plate lapping the center of each ridge, below the second conveyor, mounting the two leveling rollers positionable on the left and right.

[0008] Then, the rolling Coulter that vertically to the left and right opposed to each other inside the left and right drilling Toja, through <br/> central portion of their respective both ends of the spool forming a sprocket in a central portion outer periphery The spool is horizontally supported between the lower ends of height-adjustable supporting rods that are fixed and suspended right and left from the frame to face each other, and the sprocket of the spool and the front downward rotation provided on the rear upper portion of the sprocket are rotated. A chain is wound around a sprocket on the prime mover side, and a chain tight toner having an upper end pivotally attached to the front end of the frame and a front end pulled up by an elastic machine is provided above the chain. The lower half portion of the sprocket and the chain was covered with a soil cover, and the rolling coulter was rotated downward by the rotation of the driving-side sprocket.

[0009]

When the frame is connected to the rear of the tractor, the left and right digging blades are respectively aligned with the potato ridges, the frame is lowered to the ground, and when the potato digging machine is pulled in the forward direction F shown in FIG. going on photo blade penetrate the soil, that raised digging potatoes with soil. Potatoes and soil which is dug up is found placed in the front end portion of the first conveyor is by advancing the potatoes photo machine, soil while being transported towards the rear is dropped sieve on the ground, the front end of the second conveyor from the rear end portion Drop potatoes and sifted soil into the area. The second conveyor further conveys the potatoes backward while sifting the soil to the ground.

[0010] The potato pulling plates arranged in a pair on the left and right on the conveyors behind the left and right digging blades, by gradually narrowing the mutual distance toward the rear ,
The potatoes are gathered at the central portions behind the left and right excavating blades respectively while being conveyed by the conveyor. The second conveyor drops the potatoes collected from the terminal in two rows.

[0011] leveling rolls of the right and left provided on the second conveyor downwardly, respectively align the lateral center part to the central portion in the forward direction of the right and left drilling Toja, Ri by the adjusting the height of the vehicle axis horizontal And crushed the soil falling on the ground after being sieved on each conveyor. On the ground surface hardened by this suppression,
The second conveyor to drop the potato from the end edge.

[0012] The rolling coulters, which are vertically installed on the left and right sides of the left and right excavating blades, are driven to rotate forward and downward, thereby removing the soil clogged between them. The chain titner, which has its upper end pivotally attached to the front of the frame and the front end is pulled up with an ammunition, adjusts the supporting rod that supports the rolling coulter in order to adjust the cutting depth of the rolling coulter. When moving up and down, the ammunition automatically expands and contracts to raise and lower the support rod without hindrance, and tensions the chain. The soil cover covering the sprocket of the spool and the lower half of the chain prevents the soil from penetrating into these places and smoothly rotates the rolling coulter.

[0013]

Embodiments will be described with reference to the drawings.
1 and 2 are a plan view and a front perspective view of the potato digger of the present invention. In these figures, reference numeral 1 denotes a frame in which side plates 12 and 13 facing left and right are horizontally provided with cross beams 4 and 5 and a frame 6 above and below a front portion, and a plurality of spacers 7 ( 5 and 6 ) are sequentially arranged rearward and framed in parallel, and a connecting frame 11 having a connecting portion 10 for connecting to a hydraulic three-point support device of the tractor is protrudingly provided at the front. > Ru have. As shown in FIG. 5 to FIG. 7, the frame 6 is formed by bending a central portion into a square projection, and excavating blade mounting plates 2 </ b> A on right and left sides thereof.
And 3A are projected forward and obliquely downward, and digging blades 2 and 3 are fixed to the upper surface, respectively. Drilling Toja 2 and 3, that has established a well-known soil sieve body 2B and 3B formed by arranging bars vertically桟状the rear end portion.

[0014] The pre-SL square tubular sockets 1A and 1B to the front end outside of the side plates 12 and 13 of the fixed vertically, the支杆29 and 30 respectively inserted vertically slidably, a square tubular sockets 1A and 1B The height is fixed so as to be adjustable by a set screw 1a screwed to the outer surface. Rolling coulter 8, 8
Fix the bearing 8A at the center of the outer surface,
The bearing 8A is supported at the lower end of the shaft 0B by a bearing 8B, and the digging blade 2
And 3 are vertically provided outside. Furthermore, excavation blade 2
Rolling coulters 9 and 9 are provided vertically inside each other, and are driven to rotate forward and downward.

[0015] Chi I sand, as shown in FIG. 6, parallel to secure the stringer 27, 28 in the central portion of the cross beams 4 and 5, are opposed to square tube socket 1C and 1D to the right and left outer riser Stick to The support rods 31 and 32 are slidably inserted up and down in the square tube sockets 1C and 1D, respectively, and the heights thereof are adjusted so as to be adjustable with set screws provided outside the square tube sockets 1C and 1D (FIG. 10).

Referring to FIGS. 8 to 10, reference numeral 33 denotes a spool having a sprocket 34 formed at the center of the outer periphery. The center portions of the rolling coulters 9 are fixed to both outer sides of the spool 33, respectively.
The rolling coulters 9 and 9 are fitted together with the spool 33 between the lower end portions of the shafts 1 and 32, and the shaft 35 is horizontally communicated with the spool 33 and the rolling coulters 9 and 9. The nut 36 is screwed on and the shaft 35
(See FIG. 14).

As shown in FIG. 1 and FIG. 5, in order to drive and rotate the rolling coulters 9 and 9 forward and downward, a bracket 3 is provided rearward from the right end and the center of the cross beam 5.
7 and 38 are protruded in parallel with each other, and a shaft 39 is rotatably and horizontally supported at the distal end thereof. A sprocket B6 as a driving side is attached to the center side end of the frame 1 of the shaft 39 behind the sprocket 34. It is fixed upward, and a chain 40 is wound around the sprocket B6 and the sprocket 34 as shown in FIG. The sprocket B6 rotates in the direction of arrow b in FIG. 9 as described later, and rotates the rolling coulters 9, 9 forward and downward.

Reference numeral 41 denotes a chain tighter, which is a cylindrical bearing 42 which is disposed between the longitudinal beams 27 and 28 in the horizontal direction.
In the lower front and rear of the upper part, upward and downward concave grooves are formed so that the chain 40 can slide freely (FIG.
9 , FIG. 12 and FIG. 14), a cylindrical bearing 42 is rotatably mounted between the longitudinal beams 27 and 28 by a pin 43, and a protruding bar 44 is fixed to one side surface of the front end. The screw rod 46
Is vertically and freely movably penetrated through a projecting piece 45 fixed to the front of the center of the cross beam 4, and is screwed with the projecting piece 45 sandwiched vertically.
At 7, 47, it is fixed to the protruding piece 45.

[0019] Chain Thailand toner 41, as shown in FIG. 9, the upper end portion is connected to the lower end of the screw rod 46, more the lower end to the bullet machine 4 8 sealed hook the projecting rod 44, the front end the pin 4
3, the chain 40 is lifted up by the front upward groove and pressed downward by the rear downward groove to be tensioned. Tension bullet machine 48, the screw rod 46 moves up and down to a desired position by loosening the nuts 47 and 47, to adjust the nut 47 to frettage fastening
It has become .

[0020] Also, attach the soil shade cover 49 between the supporting rod 31 and 32. The supporting rods 31 and 32 are shown in FIG.
As shown in FIG. 11, the lower portion is bent obliquely downward and forward, and a scraper 52 having an L-shaped cross section is provided along the outer surface thereof.
Inverted L-shaped brackets 50, 5 at the same position on the inner side
1 is fixed vertically . The scraper 52 is
The end faces of the first and second protruding inwards are portions that scrape off the soil (see FIG. 11). Reference numeral 53 denotes a screw hole for attaching the soil cover 49.

As shown in FIG. 13, the above-mentioned soil cover 49 includes a central cover portion 54 and side plates 55 and 56. The center cover portion 54 has a U-shaped notch groove 57 in which a long groove portion is connected to a semicircular notch portion having a diameter slightly larger than the outer periphery of the spool 33 on both sides, and the front surface is formed with the sprocket 3 inside.
4 can be accommodated closed and the lower surface which connects to the front a flat closing surface, and the upper surface opening 58. Side plate 5
5 and 56, a semicircular notch 59 slightly larger in diameter than the outer periphery of the spool 33 is formed in the center of the front end face.

Then, screws (not shown) are inserted through the screw holes 60,... Formed in both side surfaces of the central cover portion 54 and the side plates 55, 56.
When 56 is attached to both side surfaces of the center cover portion 54, the semicircular cutout portion of the U-shaped cutout groove 57 and the semicircular cutout portion 59 form a circular opening slightly larger in diameter than the outer periphery of the spool 33, The long groove of the U-shaped cutout groove 57 is closed. In addition, the rear upper edge of the central cover portion 54
A screw hole 61 corresponding to the screw hole 53 shown in FIG.

A dirt cover 49 between the supporting rods 31 and 32
To install a is inserted from the front towards the center cover portion 54 to the rear and fitted with U-shaped notch groove 57 on the spool 33, as shown in FIGS. 8 and 9, bis bis 62 of the hole 53,
Communicates with the 61 and fixed between the lower end portion of the inverted L-shaped bracket 50, 51, respectively the side plates 55 and 56 on both outer surfaces you screwing. At this time , the spool 33 can rotate within the circular opening described above.

[0024] Next, FIG. 1, 2 and 5 to 7, 14 is a first conveyor, the conveyor drive shaft 63 laterally placed axially supported through a mountain top edge of the middle of the side plates 12, 13
Between the flat pulley 65 integrated with the left and right sprockets 64 fixed to the left and right and left driven wheels 67 fixed to a conveyor driven shaft 66 which is horizontally supported near the rear ends of the soil sieves 2B and 3B. In addition, an endless revolving body in which a number of horizontal rods 69 are supported between opposing endless belts 68 through a gap capable of sieving the soil is suspended, and both ends of the horizontal rods 69 are sprockets 64,
64, and is provided on the inside of the frame 1 so as to rise rearward. Further, the first conveyor 14 receives and extends the lower portions of the left and right endless belts 68 with a plurality of rollers 70 pivotally supported inside the side plates 12 and 13. Horizontal rod 69
Is Tei and the rubber-coated steel rod so as not to damage the potatoes
You.

Reference numeral 15 denotes a second conveyor,
13 and the flat pulley 65 of the sprocket 64 fixed to the right and left of the conveyor drive shaft 71 laterally placed axially supported through the intermediate portion of the rear end portion of the conveyor which is laterally placed axially supported forward and downward of the predicate of the conveyor drive shaft 64 between the driven wheel 73 fixedly provided on the left and right of the driven shaft 72, large number of transverse rod between opposing endless belts 74, 74 6
9 is suspended (see FIG. 17).
Provided downward from behind the rear end beneath the conveyor 14 inclined Ru have <br/>. The second conveyor 15 is also stretched by receiving the lower portions of the left and right endless belts 74 with rolling wheels 70.

[0026] Next, FIG. 1, 2, 75 is a mission to receive the power transmission of the tractor PTO shaft, projecting the input shaft 76 forward, the input shaft 7 to the output shaft 77 to the left
6 and is fixed to the upper surfaces of the vertical beams 27 and 28 described above. The output shaft 77 has a bearing 78 erected on the cross beam 5.
In the intermediate portion is supported, and fixed the V-pulley 79 on the left end portion. Further, it pivoted at an intermediate portion of the side plate 12 of the intermediate shaft 80
The V-pulley 81 fixed to the above end, wrapping the V belt 82 to the V pulleys 79 and 81, and tensions the upper intermediate with tension pulley 83.

Reference numerals 84, 85 and 86 denote chain transmission mechanisms for rotating the first conveyor 14, the second conveyor 15 and the rolling coulters 9, 9, respectively, and are disposed on the outer surfaces of the side plates 12 and 13, respectively. Chain covers 87, 88 and 89 respectively (see FIGS. 3 and 4).
See) .

FIG. 14, with reference to FIGS. 15 and 16, will be described first Ji En transmission mechanism 84. The aforementioned intermediate shaft 80
The sprocket A <b> 1 fixed to the tip end protruding outside the side plate 12 is configured to rotate in the direction of the arrow a by the rotation of the V pulley 81 described above. Further, the sprocket A2 fixed to the terminal portion protruding outward from the side plate 12 of the above-mentioned conveyor drive shaft 63 receives the rotation of the sprocket A1 via the chain C1, and the conveyor drive shaft 6
The sprockets 64, 64 fixed to 3 are rotated in the direction of the arrow a, and the first conveyor 14 is rotated for backward conveyance . C2 is a chain tighter and a chain C1
Is provided in the middle part on the upper side.

As shown in FIG. 15, the chain tightener C2 has a shaft 91 projecting from the outer surface of the side plate 12 at the middle between the sprockets A1 and A2, and supports the center of the lever plate 90 to the shaft 91. , At the front end and the rear end of the lever plate 90,
They respectively support the sprockets A3 and A4. Then, the front end of the lever plate 90 is pulled downward by the bullet S1 having the lower end fixed to the side plate 12, and the sprocket A3
And it is tensioned chain C1 respectively lower half and upper half of the A4.

Next, the chain transmission mechanism 85 is shown in FIG.
As shown also in FIG. 16, sprockets A5, A6 are attached to the conveyor drive shaft 63 protruding outward from the side plate 13.
A sprocket A7 is also fixed to the tip of the conveyor drive shaft 71, and a chain C3 is wound around the sprockets A5 and A7.
4, the rotation of the conveyor drive shaft 63 is transmitted to the conveyor drive shaft 71, and the second conveyor 15 is rotated backward. Chain Thailand toner C4 has the same structure as Choi <br/> Ntaitona C2.

The chain transmission mechanism 86 has a shaft 93 that is supported in front of the sprocket A6 through the side plate 13.
At the tip protruding outward and inward from the side plate 13 of
Each of the sprockets B1 and B2 is fixed (FIG. 14
See) . The sprockets B3 and B4 are supported as idle vehicles in the middle of the sprockets A6 and B1 and in front of the sprocket B1, respectively. The chain C5 is wound around the sprockets A6 and B4 endlessly, and the upper part of the sprocket B3 and the sprocket B1 are spun. The sprockets B1 and B2 are rotated in the reverse direction (in the direction of the arrow b) with respect to the sprocket A6 via the lower part of the sprocket.

In FIG. 14, the shaft 39 described above is used.
On the inside of the side plate 13 and at the front end of the center of the frame 1,
The sprockets B5 and B6 are fixedly mounted, respectively, and the rotation of the sprocket B2 is
To rotate the sprocket B6 in the direction of the arrow b. And, the sprocket B6 and the spool 3
Turn Suspend the chain 40 between the third central portion of the sprocket 34, so as to rotate the rolling Coulter 9,9 forward downward.

Next, reference numerals 16 to 23 denote potato gathering plates. As shown in FIGS. 1, 2 and 17, the potato gathering plates 1 are placed on the first conveyor 14 on the rear extension of the excavating blades 2 and 3.
6, 17 and 18, 19 are paired on the left and right, respectively,
Potato slabs 20, 21 and 22, 2 on conveyor 15
3 are provided as a pair of left and right, and are arranged so that the mutual interval can be adjusted for each pair of left and right. Referring also to FIG. 5, the potato slabs 16 to 19 and 20 to 23 do not damage the potatoes.
In addition, rubber plates 94 and 95 are fixed to inner surfaces facing each other. In addition, a rubber hanging plate 96 is attached to the end of the potato gathering plates 20 to 23, and the second conveyor 15
The potatoes falling from the terminal are not scattered.

[0034] The horse Suzuimo shifting plate 16 described above 17 and 1
As shown in FIGS. 1, 2 and 5, a rod 1F is laid horizontally on brackets 1E, 1E erected on the intermediate chevron portions of the side plates 12, 13 in order to make the distance between 8 and 19 adjustable. Fix the rod 1G above the front end of the first conveyor 14
Horizontally fixed inside 2, 13. Reference numeral 97 denotes a slider, in which a horizontal cylindrical portion slidably fitted to the rods 1F and 1G and a vertical cylindrical portion through which the straight rod 98 is slidably inserted are fixed in a cross shape, and stoppers provided on each of them. Bar 1F with screw 1H,
It can be fixed to the 1G and the straight rod 98. Slider 9
Reference numeral 7 designates a lateral cylindrical portion which is externally fitted to the rods 1F and 1G.
I have attached the pieces.

Further, as shown in FIG. 5, cylindrical sockets 99 are vertically fixed to the outer surfaces of the potato pulling plates 16 to 19, respectively, in accordance with the front-rear distance between the rods 1F and 1G. Then, the potato pulling plates 16 to 19 insert the upper end of the straight bar 98 from below into the vertical cylindrical portion of the slider 97 and fix it with the set screw 1H, and insert the lower end of the straight bar 98 into the cylindrical socket 99 from above. And fix it with the set screw 1J.
To, brought into sliding contact with the lower end surface to the upper surface of the first conveyor 14, drilling Toja 2 and 3 of the potato shifting plate 16 on the rear extension 17 and 1
8 and 19 are arranged as a left and right pair respectively.

Also, brackets 1K, 1K are erected on the rear of the intermediate chevron portions of the side plates 12, 13 so as to face left and right (FIG. 17).
See), these lateral bridging fixed side by side in parallel back and forth rod 1L and 1M, respectively to put preparative four sliders 97. On the outer surfaces of the potato plates 20 to 23, a rod 1L is provided.
The cylindrical socket 99 is vertically fixed to the front and rear intervals of 1M and the lower ends of the straight rods 2C and 2D are inserted into the cylindrical socket 99 from above and fixed with set screws 1J.
By inserting the upper end portion of D from below in the vertical cylindrical portion of the slider 97 is fixed with set screw 1H (see FIG. 5), the lower end surface of the potato shifting plate was bordered slides on the upper surface of the second conveyor 15,
The potato plates 20, 21 and 22 are placed on the second conveyor 15.
And 23 are arranged as a left and right pair respectively.

A pair of left and right potato slats 16 as described above
23, the set screw 1H is loosened and the slider 97 is
F, 1G, 1L, and 1M are moved to desired positions, and the set screw 1H is tightened and fixed to adjust the mutual distance. When digging potatoes, the rear ends of potato plates 20 and 21 and 22 and 23 are narrowed to each other so that the potatoes fall from the end of the second conveyor 15 in two rows to the surface of the ground. (See FIG. 17).

Further, as shown in FIGS. 1 and 2, the second
Below the conveyor 15, the lower half is projected from the lower surface of the frame 1, and the leveling rollers 25, 25 are fitted with bosses on the middle part of the axle 24, and fixed with set screws 26 so that the position can be adjusted right and left. (See FIG. 18). As shown in FIGS. 3, 4 and 18, the axle 24 is rotatably supported by bearings 2F whose both ends are attached to the lower outer surfaces of the side plates 12 and 13 so as to be adjustable in height. It is lying on the side. The bearing 2F is formed by fixing the fixing bolts 2G at both ends to the side plate 1.
Vertically elongated holes 2H, 2H (FIG. 3,
Refer to FIG. 4).
The bearing 2F and the axle 24 can move up and down integrally with each other through a vertically long through hole 2J formed in the lower part of the thirteen.

Further, the bearing 2F is such that a threaded rod 2K erected on the upper surface of the central portion is vertically penetrated through the protruding pieces 2M fixed to the outer side faces of the side plates 12 and 13, respectively. nuts 2L was screwed in rod 2K, vertical position 2L is Ru fixed Empire. Integer locations rolls 25 and 25, loosening the fixing bolts 2G, 2G and nuts 2L, a 2L, bearing 2
F, the axle 24 is moved up and down to a desired position, and then the fixing bolts 2G, 2G are tightened to the side plates 12, 13, and the nut 2
L and 2L are also tightened to the protruding piece 2M to adjust the vertical position. The adjustment of the vertical position is such that the ground leveling rollers 25, 25 crush the ground surface when potatoes are dug.

[0040]

[Effect of the invention The present invention is, in what is constituted as described above, connecting the frame to the tractor, the left and right drilling Toja Align to each of two ridges of the potato, the advanced towing tractors , penetrates Toja is underground drilling provided in the downwardly inclined, that raised digging potatoes with soil. Excavated soil
And potatoes are transported backward by the first and second conveyors.
Soil is sifted during the operation, and from the terminal of the second conveyor
Potato P is placed on the ground surface flattened by leveling rollers .
Fall like 19 That is, when there is no leveling roller
In this case, potatoes fall on the ground surface that has become mountain-shaped as shown in FIG.
Some burial in the soil or fall into the valley
Can be eliminated.

The left and right excavating blades are rotatably driven forward and downward from the left and right excavating blades, so that the soil between the right and left rolling coulters is forced backward. Can be eliminated. Therefore, also in the sticky soil conditions, eliminating the dirt clogging between both's, it is possible to eliminate the increase in the traction resistance due soil clogging. In addition, the sprocket at the center of the spool, where the center of the rolling coulter is mounted, and the lower half of the chain that drives the rolling coulter are covered with a dirt cover, preventing soil from entering these locations. Then, the rolling coulter can be smoothly rotated.

Further, a soil cover is attached between the supporting rods on which the left and right rolling coulters are attached, and a chain tightener that tensions the upper part of the chain that drives the rolling coulter is attached to the front end of the frame at the upper end. Pivot
The front end is pulled up with an ammunition, so if you move only the support bar up and down, the ammunition will automatically expand and contract, and you can easily adjust the cutting depth of the rolling coulter with the soil cover attached be able to.

[Brief description of the drawings]

FIG. 1 is an overall plan view partially broken.

FIG. 2 is an overall front perspective view.

FIG. 3 is a left side view of the whole.

FIG. 4 is a right side view of the whole.

FIG. 5 is a longitudinal sectional view taken along the line AA of FIG. 1;

FIG. 6 is a plan view of a main part of the frame.

FIG. 7 is a front view of a main part of the frame.

FIG. 8 is a front view of a central rolling coulter part.

FIG. 9 is a longitudinal sectional view of a partially broken view taken along line BB.

FIG. 10 is a right side view of FIG.

FIG. 11 is a perspective view of a supporting rod of the rolling coulter.

FIG. 12 is a plan view of a main part of FIG. 8;

FIG. 13 is an exploded perspective view of the soil cover.

FIG. 14 is an exploded perspective view schematically showing a main part of a transmission mechanism.

FIG. 15 is a left side view of a main part of the transmission mechanism.

FIG. 16 is a right side view of a main part of the transmission mechanism.

FIG. 17 is a rear perspective view of a main part.

FIG. 18 is a rear view of a main part in which one of the leveling rollers is broken.

FIG. 19 is an explanatory view showing a mode of the operation by the present invention machine.

FIG. 20 is an explanatory view showing an aspect of a conventional operation.

[Explanation of symbols]

 Reference Signs List 1 frame 2, 3 excavating blade 8 rolling coulter 9 rolling coulter 14 first conveyor 15 second conveyor 16, 17, 18, 19 potato board 20, 21, 22, 23 potato board 24 axle 25, 25 leveling Roller 2F Bearing 29, 30, 31, 32 Supporting rod 33 Spool 34 Sprocket B6 Driving side sprocket 40 Chain 41 Chain tighter 48 Ammunition 49 Soil cover 49

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-236709 (JP, A) JP-A-2-295406 (JP, A) JP-A-4-43925 (JP, U) JP-A 58- 125928 (JP, U) JP 52-46853 (JP, B2) Jiko 49-6439 (JP, Y1)

Claims (1)

(57) [Scope of request for utility model registration] 1. A features a Toja dug to the left and right above <br/> end lower inside of the frame for coupling to the rear of the tractor, rolling Coulter each height adjustable capacity outside the photo blades of the right and left
And vertically to the front Symbol first conveyor and before you Koso possible attrition of the soil inside the rear of the left and right drilling Toja frame
A second conveyor provided continuously to the rear of the serial first conveyor, this co
A pair of left and right potato gathering plates for bringing the potatoes being conveyed to the center of each ridge on the conveyor is arranged , and the ground is leveled below the conveyor.
In potato photo machine with a roller, rolling Coulter for rotating and vertically on the left and right opposed to each other inside the left and right drilling Toja, No, respectively it at both ends of the spool forming a sprocket in a central portion outer periphery A center portion is fixed, and the spool is horizontally supported between lower ends of height-adjustable supporting rods which are suspended right and left from the frame, and a sprocket of the spool and a front downward direction provided on a rear upper portion of the sprocket. A chain is wound around a sprocket on the driving side which rotates at the upper end, and an upper end portion is pivotally attached to a front portion of the frame, and a chain tightener having a front end portion pulled up by an elastic machine is provided on an upper side of the chain, horse Suzuimo photo machine mounted between支杆of the lateral soil shade cover for covering the lower half of the sprocket and the chain of the spool.