JP3071726B2 - Weeding guide for mobile stem processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method of cutting stems of potatoes and potatoes cultivated in high ridge or flat ridges from the root,
The present invention relates to a traveling stalk processor that can be picked up by a transfer device and collected on a side of a ridge remote from the ridge.

[0002]

2. Description of the Related Art Conventionally, a traveling stalk processing machine that scrapes a stalk of a potato, a potato, or the like with a scraping device and pulls the stalk up with a nipping and conveying device to cut a gap between a potato in a ridge and the stalk is known. Has been filed earlier than the same applicant. In this traveling stalk processing machine, a cutting device for cutting a stalk on a ridge is provided on the left and right sides of the front end of the machine body, and a weeding board projecting forward is provided at a lower end of the cutting device. . With this weeding board, a stem having a rooted state was dug up in a groove between the ridges, and the stalk could be scraped by a scraping device.

[0003]

However, in the cutting device in the traveling stalk processor as described above, a weeding plate is provided only at the front lower end of the cutting device, and an upper portion of the cutting device is provided. Since the stalks that grew on the ridges were entangled with each other, there was a case where the stalks could not be squeezed properly by the rake device.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. According to claim 1, in a traveling stalk processor for pulling out and discharging stalks while traveling, a stalk cutting device C for cutting a stalk on a ridge is disposed at a front end of the fuselage, and the stalk cutting device C is arranged in a vertical direction. The reciprocating blade 86 and the fixed blade 87 are configured by a reciprocating blade and a fixed blade arranged.
In conjunction with the driving of該茎cutting device C and is covered by the openable cutting device cover 80, the cutting device cover 80
Can be rotated in the front-rear direction by opening and closing parallel links 82 and 83
And the open / close parallel links 82 and 83 are
Cut around the rotation centers 82a and 83a on the device C side.
A turning portion 82b rotatably connected to the cutting device cover 80;
83b is configured to be rotatable, and above the stem cutting device C,
A weeding guide 43 for guiding the stem is attached.
Is configured to be rotatable back and forth above the stem cutting device C.

According to a second aspect of the present invention, in the weeding guide for the traveling stalk processor according to the first aspect, the weeding guide 43 rotates in conjunction with the driving of the stalk cutting device C. It is composed.

According to a third aspect of the present invention, in the weeding guide for the traveling stalk processor, the lower end of the stalk cutting device C is supported by a support frame 90 that supports the stalk cutting device C. The digging plate 16 is projected forward.

[0007]

Next, an embodiment of the present invention will be described. FIG. 1 is an overall side view showing a traveling stalk processor equipped with a weeding guide of the present invention, FIG. 2 is an overall plan view thereof, and FIG. 3 is a sectional view showing a pivot point for pivotally supporting a stalk processing mechanism. 4 is a side view showing a stem cutting device and a weeding guide, FIG. 5 is a plan view of the same, and FIG. 6 is a side view showing another embodiment of the weeding guide.

First, an overall configuration of a traveling stalk processor as an embodiment of the present invention will be described. 1 and 2, a traveling mechanism B mainly includes left and right traveling wheels 11, an engine E, and a steering wheel H. A transmission case M is fixedly provided on the left side in the traveling direction of the engine E, and a crankshaft of the engine E transmits power to the inside of the transmission case M. After shifting within the transmission case M, power is transmitted to the traveling wheels 11 via the traveling drive case 13.

A traveling frame 19 for supporting the traveling mechanism B is provided from the engine E and the transmission case M to the front end of the fuselage.
16 and the guide wheels GG are supported by the traveling frame 19. A pivot point P is provided at an intermediate portion of the traveling frame 19 in the front-rear direction, and a stalk processing mechanism A including a scraping device 14, a ridge holding roller mechanism T, a nipping and conveying device F, and the like, It is configured to be able to rotate up and down around P.

A front end of the traveling drive case 13 is mounted on a wheel height frame 17 projecting downward from the traveling frame 19 so as to be vertically adjustable by a bolt. Case M
Is pivotally supported by a pivot portion 18 so as to be rotatable up and down.
Therefore, by adjusting the mounting position of the traveling drive case 13 and the wheel height frame 17, the height of the traveling mechanism B with respect to the ground can be adjusted, whereby the height of the stalk processing mechanism A with respect to the height of the ridges can be adjusted. Is adjustable.

The engine E and the transmission case M constituting the traveling mechanism B are integrally fixed, and the traveling frame 19 protrudes forward from the engine E and the transmission case M. A steering handle H projects upward and rearward from the traveling frame 19, and the steering handle H extends to above the engine E.
A PTO shaft projects from the front of the transmission case M, and a PTO joint shaft 15 is connected to the PTO shaft. A front end of the PTO joint shaft 15 is connected to a rotation center gear case K rotatably disposed on the traveling frame 19.
The pivot point P is provided on the rotation center gear case K.

Next, the stem processing mechanism A will be described. The stalk processing mechanism A is integrally formed with a scraping device 14, a ridge holding roller mechanism T, a nipping and conveying device F, and the like. It is pivotally supported by a horizontal drive shaft 25 in the gear case K, and the axis of the horizontal drive shaft 25 is a pivot point P. The support frame 46 of the ridge holding roller mechanism T is hung on a bracket 49 fixed to the front lower surface of the nipping and conveying device F, and the left and right roller units 2L and 2R of the ridge holding roller mechanism T are vertically rotatable. The vertical position is adjustable.

A rotating frame 40 is fixedly mounted on the horizontal drive shaft 25 so as to protrude downward, and an expandable and contractible pipe 41 is disposed below the engine E. And the lower end of the rotation frame 40 are rotatably connected. The telescopic pipe 41 is
By rotating an adjustment lever 42 rotatably attached to the rear end of the device 1, it is configured to expand and contract. When the adjusting lever 42 is rotated, the telescopic pipe 41 expands and contracts, and the rotating frame 40 rotates about the pivot point P, and the stem processing mechanism A is vertically rotated integrally with the rotating frame 40. I do. Thereby, the tip position of the stalk processing mechanism A can be adjusted in the vertical direction according to the ridge height. An elastic body S including a gas spring mechanism is interposed between the stalk processing mechanism A and the traveling mechanism B.

Excavating plates 16, 16 disposed at the tip of the fuselage
The guide wheels GG are supported by a traveling frame 19 that constitutes the traveling mechanism B. The excavation plate 16
Is disposed at the tip of the frame 19, and is constituted by a plate-like member formed in a substantially triangular shape in a side view. Then, the excavating plates 16 pass through the inside of the groove between the ridges, dig and raise the stems with roots in the grooves, and rake the stalks constituting the stalk processing mechanism A. It is transported to the devices 14. The buried stem is pulled up by the digging plate 16 and the stalk is raked by the rake 27 of the rake device 14.
・ While squeezed by 27 and conveyed upward and backward while nipping by the nipping and conveying belt 24 of the nipping and conveying device F,
By pressing the potatoes in the ridges so as not to rise by the ridge pressing roller mechanism T, the original portion of the potato stalk is cut apart. The original part of the potato stalk can be cut with a cutter or the like, but it may damage the potato,
The stem is torn off by the action of pressing by the ridge pressing roller mechanism T and pulling by the nipping and conveying belt 24.

When weeding is performed by the excavating plates 16 and raked by the raking devices 14, the stems prosper to the adjacent ridges, or the ridges of the adjacent ridges perform work. There are cases where stems are entangled due to entry into the ridges. If you pull the stem in such a state as it is, you may dig up the potatoes on the next unpressed ridge,
A stem cutting device C for preventing this is disposed at the tip of the frame 19. The stalk cutting device C is composed of reciprocating blades arranged in the vertical direction, and is provided with a stalk cutting device clutch mechanism in conjunction with the ON operation of the work clutch lever 81 for switching the drive of the stalk processing mechanism A or separately. Then, driving is started. A weeding guide 43 is disposed above the stalk cutting device C, the stalk above the ridge is guided to the stalk cutting device C by the weeding guide 43, and the stalks are scraped by the scraping devices 14. I am trying to put it. Further, a crank portion including a crankcase 23 and the like is disposed on the side of the rotation center gear case K, and the stalk cutting device C is driven via the crank interlocking link 12 by the crank portion. The drive clutch mechanism of the stem cutting device C is disposed in the rotation center gear case K.

The stems scraped and torn by the scraping devices 14, 14 are conveyed rearward by the nipping and conveying belt 24, and are pulled from the scraping devices 14, 14 by the scraping devices 14.
-It is inherited by the transport tines 26, 26 of the nipping transport mechanism F disposed above and behind the 14. And the transport tine 2
The sheet is further conveyed rearward by the holding conveyance belt 6 and is discharged to the rear of the machine.

As shown in FIG. 2, the nipping / conveying device F is configured so that the stem discharging direction can be switched to the left and right by rotating the upper portion thereof left and right. If the holding and conveying device F is straightened without bending to the left and right, the stem can be dropped to the rear of the ridge for cutting the stem. In addition, the stem can be discharged into the groove of the next two or three adjacent strips. in this way,
In the present embodiment, it is configured to be rotatable in three stages on each side of the left and right, and to be able to adjust the discharge position switching to seven stages by adding the center position. The number of adjustment stages is not limited to the number of stages in the present embodiment, and may be appropriately set to an appropriate number of stages.

Next, FIG. 3 shows a power transmission configuration of the rotation center gear case K. A rack gear 20 is disposed on a drive shaft portion inside the rotation center gear case K, and the rack gear 20 and the PTO joint shaft 1
The pinion gear fixed to the front end of the gear 5 meshes with the pinion gear, and the pinion gear rotates the rack gear 20. The rotation of the rack gear 20 is transmitted to the horizontal drive shaft 25 by the bevel gears 22, and the drive shaft 25 drives the crankcase 23 that drives the crank link 12. Further, the conveyance belt drive shaft 31 is rotated by the rotation of the rack gear 20, and the nipping conveyance belt 24 is driven.

Next, stem cutting device C and weeding guide 43
Will be described with reference to FIGS. The cutting device C includes a reciprocating blade 86 and a fixed blade 87, and a connecting member 89 is fixed to the reciprocating blade 86. The distal end portion 12a of the crank interlocking link 12 is connected to a distal end portion of a rotary arm 94 that is configured to be rotatable about a rotary center 88a, and the rotary center 88a is integrated with the rotary arm 94. Is mounted on the drive arm 88 which rotates. A pin 88b protrudes from the tip of the drive arm 88, and the pin 88b is slidably fitted in a long hole 89a formed in the connecting tool 89.

When the crank interlocking link 12 is driven back and forth by the crank case 23, the rotating arm 94
Rotates about the rotation center 88a, and the drive arm 88 integrally rotates vertically. The vertical movement of the drive arm 88 causes the reciprocating blade 86 to perform a vertical reciprocating motion. A reciprocating blade 86 for performing the vertical reciprocating motion.
With the fixed blade 87, the stem on the ridge is cut.

The reciprocating blade 86 and the fixed blade 87 are covered by a cutting device cover 80, and a digging plate 16 projecting forward is supported by a support frame 90 at the lower end of the stem cutting device C. I have. The cutting device cover 80
As shown in FIG. 5, it is supported by openable parallel links 82 and 83 so as to be able to rotate back and forth. Open / close parallel link 82.8
Reference numeral 3 denotes rotating portions 82b and 83b rotatably connected to the cutting device cover 80 around the rotation centers 82a and 83a.
Are rotatable. A spring 85 is connected to the lever 82c of the opening / closing parallel link 82, and the opening / closing parallel link 82 is urged in a direction in which the cutting device cover 80 opens rearward.
The cover opening / closing wire 84 is connected, and the cover opening / closing wire 84 is configured to be pushed and pulled in conjunction with the connection / disconnection of the above-described stem cutting device clutch mechanism.

When the stem cutting device clutch mechanism is turned off, the cover opening / closing wire 84 is pulled,
When the cutting device cover 80 is pushed forward against the urging force of the spring 85 and the cutting device cover 80 closes, and the stem cutting device clutch mechanism is turned on, the cutting device cover 80 is biased by the spring 85. The cover 80 is configured to be pulled rearward to open the cutting device cover 80.

At the upper end of the stalk cutting device C, a guide support plate 91 is fixed to the upper end of the support frame 90, and a bolt 92 is screwed onto the support plate 91. The weeding guide 43 is attached to the guide support plate 91 by the guide base 43 a being rotatably fitted to the bolt 92. A spring 93 is fitted on the bolt 92 to bias the guide base 43a of the weeding guide 43 toward the guide support plate 91.
1 has a pin 91a protruding therefrom so that the pin 91a can be fitted into one of the fixing holes 43c and 43d formed in the guide base 43a. When the fixing hole 43c is fitted to the pin 91a, the weeding guide 43 projects forward, and when the fixing hole 43d is fitted to the pin 91a,
The weeding guide 43 falls backward.

Since the guide base 43a of the weeding guide 43 is biased toward the guide support plate 91 by the spring 93, the pin 91a is stably fitted in the fixing hole 43c or the fixing hole 43d. Fixed. For example, the fixing hole to be fitted into the pin 91a is
When switching from c to the other fixing hole 43d, the guide base 43a is pushed up to the side opposite to the guide support plate 91 against the urging force of the spring 93, and the fixing hole 43c is withdrawn from the pin 91a. By rotating the guide 43, the pin 91
When the position of a and the other fixing hole 43d are matched, the fixing hole 43d is fitted to the pin 91a by the urging force of the spring 93, and can be switched.

As described above, since the weeding guide 43 is configured so as to be able to switch its rotation back and forth, when performing work,
The fixing hole 43c is fitted to the pin 91a to make the weeding guide 43 protrude forward so that weeding is possible. When no work is performed, the fixing hole 43d is fitted to the pin 91a to attach the weeding guide 43. It can be stored by leaning backward.

In the above embodiment, the weeding guide 43
Although the mechanism for manually performing the forward / backward switching rotation has been described, the weeding guide can also be configured as follows, as shown in FIG. At the upper end of the stalk cutting device C, a guide support plate 91 'is fixed to the upper end of the support frame 90, and a bolt 92 is screwed into the support plate 91'. The weeding guide 43 'is attached to the guide support plate 91' by rotatably fitting the guide base 43a 'to the bolt 92.

A pin 91a 'is projected from the guide support plate 91', and a pin 42b 'is projected from the guide base 43a'. A spring 95 fitted on the bolt 92 is interposed between the pin 91a 'and the pin 42b', and the spring 95 urges the weeding guide 43 'in a direction to rotate forward. A guide rotation wire 96 is connected to a hole 43c 'formed in the guide base 43a'.

The guide rotating wire 96 is configured to be pushed and pulled in conjunction with the stem cutting device clutch mechanism. When the stem cutting device clutch mechanism is disengaged, the guide rotating wire 96 is pulled. , Weeding Guide 4
3 'is rotated backward against the urging force of the spring 95, and when the clutch mechanism of the stem cutting device is turned on, on the contrary, the weeding guide 4 is actuated by the urging force of the spring 95.
3 'is configured to rotate forward.

As described above, since the weeding guide 43 'is configured to rotate back and forth in conjunction with the driving of the stem processing mechanism A and the stem cutting device C, the stem processing mechanism A and the stem cutting device C are driven. During the work being done, the weeding guide 43 'is automatically
Is rotated forward to enable weeding, and when the stalk processing mechanism A and the stalk cutting device C are not driven, the stalk can be automatically rotated rearward and housed.

[0030]

As described above, the present invention has the following advantages. That is, as in claim 1, in a traveling stalk processor that pulls out and discharges stems while traveling, a stalk cutting device C that cuts ridges on ridges is provided at a front end portion of the fuselage. The reciprocating blade 86 and the fixed blade 87 are constituted by a reciprocating blade and a fixed blade arranged in a vertical direction, and the reciprocating blade 86 and the fixed blade 87 are covered by a cutting device cover 80 which can be opened and closed in conjunction with driving of the stem cutting device C. , The cutting
The device cover 80 is forwardly opened and closed by parallel links 82
The open / close parallel link 82 is supported rotatably in the rearward direction.
83 is the center of rotation 82a on the stem cutting device C side
Centered and pivotally connected to the cutting device cover 80
The rotating parts 82b and 83b are configured to be rotatable , and a weeding guide 43 for guiding a stem is attached to the upper part of the stem cutting device C. The weeding guide 43 is rotated back and forth at the upper part of the stem cutting device C. Since the stalks were grown above the ridges by the weeding guide 43, the stalks could be sown by the rake device in an appropriate state without fail. Also,
Since the weeding guide 43 is configured to be rotatable back and forth, when performing work, the weeding guide 43 is projected forward so that weeding is possible, and when not working, the weeding guide 43 is tilted backward. The space can be saved when the machine is stored.

Further, since the weeding guide 43 is configured to rotate in conjunction with the driving of the stem cutting device C, the stem for switching the driving of the stem cutting device C is provided. By simply operating the cutting device clutch mechanism, the weeding guide 43 can be automatically switched between the weeding state and the stored state of the weeding guide 43, and the switching work of the weeding guide 43 can be simplified. Was.

Further, a digging plate 16 projecting forward is provided at the lower end of the stem cutting device C as a third aspect.
0, the excavating plates 16
Can pass through the inside of the groove between the ridges, dig up the rooted stem in the groove, and convey it to the scraping devices 14 constituting the stalk processing mechanism A. You can.

[Brief description of the drawings]

FIG. 1 is an overall side view showing a traveling stem processing machine provided with a weeding guide of the present invention.

FIG. 2 is an overall plan view of the same.

FIG. 3 is a cross-sectional view showing a pivot point for pivotally supporting a stem processing mechanism.

FIG. 4 is a side view showing a stem cutting device and a weeding guide.

FIG. 5 is a plan view of the same.

FIG. 6 is a side view showing another embodiment of the weeding guide.

[Explanation of symbols]

 Reference Signs List A stalk processing mechanism B running mechanism C stalk cutting device E engine F clamping and conveying device H handle K rotation center gear case M transmission case T ridge pressing roller mechanism 16 weeding board 43 weeding guide 43a guide base 43c / 43d fixing hole 80 Cutting device cover 86 Reciprocating blade 87 Fixed blade 91 Guide support plate 91a Pin 92 Bolt 93 Spring

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-9-121637 (JP, A) JP-A-6-209640 (JP, A) JP-A 63-68717 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) A01D 13/00-33/14 A01D 63/00

Claims (3)

(57) [Claims] 1. A traveling stalk processor for pulling out and discharging stalks while traveling, wherein a stalk cutting device C for cutting stalks on ridges is provided at the front end of the fuselage, and the stalk cutting device C is arranged vertically. is constituted by the reciprocating motion blade and the fixed blade is, the reciprocating blade 86 and the fixed blade 87 is covered by the openable cutting device cover 80 in conjunction with driving of該茎cutting device C, the cutting device The cover 80 has open / close parallel links 82.8.
3 for pivoting in the front-rear direction.
The links 82 and 83 are provided at the rotation center 82a on the side of the stem cutting device C.
・ It is rotatable with the cutting device cover 80 around 83a
The pivoting parts 82b and 83b connected to the
A traveling stem processing machine characterized in that a weeding guide 43 for guiding a stem is attached to an upper part of the stem cutting device C, and the weeding guide 43 is configured to be able to rotate back and forth above the stem cutting device C. Weeding guide. 2. The weeding guide of the traveling stalk processor according to claim 1, wherein the weeding guide 43 is configured to perform a rotating operation in conjunction with driving of the stalk cutting device C. Weeding guide for the traveling stem processing machine. 3. The weeding guide for a traveling stalk processor according to claim 1, wherein a lower end portion of the stalk cutting device C has a digging plate 1 supported by a support frame 90 that supports the stalk cutting device C.
6. A weeding guide for a traveling stalk processor, wherein 6 is projected forward.