CN109526371A - A kind of automatic rooter in farmland - Google Patents
A kind of automatic rooter in farmland Download PDFInfo
- Publication number
- CN109526371A CN109526371A CN201710865937.9A CN201710865937A CN109526371A CN 109526371 A CN109526371 A CN 109526371A CN 201710865937 A CN201710865937 A CN 201710865937A CN 109526371 A CN109526371 A CN 109526371A
- Authority
- CN
- China
- Prior art keywords
- digging
- farmland
- mounting plate
- cutter head
- rooter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D43/00—Mowers combined with apparatus performing additional operations while mowing
- A01D43/12—Mowers combined with apparatus performing additional operations while mowing with soil-working implements, e.g. ploughs
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D75/00—Accessories for harvesters or mowers
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Soil Working Implements (AREA)
Abstract
The present invention discloses a kind of automatic rooter in farmland, including agriculture rooter ontology, the agricultural rooter ontology includes agricultural traction engine, fixed frame is fixedly connected on rear side of agricultural traction engine, the bottom of fixed frame is connected with mounting rack, the bottom of mounting rack connects device of digging, device of digging includes shell and the part of digging below shell, the part of digging is respectively that weeding part, bulk dig and part and finely dig three groups of part from front to back, interior of shell setting there are three is separately connected weeding part, bulk is digged the jack of part and fine part of digging；The present invention can be achieved automatic weeding, bulk and dig and finely dig in advance, so that farmland is digged and settles at one go, and quality height of digging, farmland can directly carry out subsequent sowing work, reduce labour, greatly improve working efficiency of digging.
Description
Technical field
The present invention relates to agricultural production equipment technical field, in particular to a kind of automatic rooter in farmland.
Background technique
In agricultural production process, the farming of digging in farmland is that purpose is to improve agricultural land soil construction, creates the agriculture of needs
Field soil porosity.Due to the machine compacting in production process, rainwater slap earth's surface crust, it is necessary to often dig, ability
Loosing soil state is kept to be conducive to the breathing and growth of crop root to improve the gas permeability of soil.
Traditional farmland tool of digging is the pull-type ploughing apparatus of ox, and the device working efficiency is low, large labor intensity, with agriculture
The development of industry mechanization starts the automatic ploughing machine for various Mechanical Drivens occur, greatly reduces labor intensity, improve and plough
Efficiency.However above-mentioned farmland is digged, tool plows using colter, and what is often dug is large clod, and causes farmland uneven
It is whole, it usually needs to carry out soil block using other agricultural field equipment in agricultural production process to smash, the agriculture that will be especially sowed
Field, it is also necessary to flatten；Meanwhile often there are weeds in the farmland that need to be digged, difficulty of digging is caused, if weeds quantity mostly also needs
Farmland weeding before wanting additional Weeding tool first to be digged.Drawbacks described above make farmland dig the course of work complexity, reduce work
Make efficiency.
Summary of the invention
The technical problem to be solved by the present invention is for overcome the deficiencies in the prior art, a kind of farmland is provided and is digged automatically
Machine.
The technical solution adopted by the present invention to solve the technical problems is: a kind of automatic rooter in farmland, including rooter
Ontology, the rooter ontology includes agricultural traction engine, and fixed frame is fixedly connected on rear side of the agricultural traction engine, described solid
The bottom for determining frame is fixedly connected with mounting rack, and the bottom of the mounting rack is fixedly connected with device of digging, the device packet of digging
Include shell and the mechanism of digging below shell, the mechanism of digging is set as three groups from front to back, respectively weeding mechanism,
Bulk, which is digged, mechanism and finely digs mechanism, and there are three is separately connected weeding mechanism, bulk rooter for the interior of shell setting
The jack of structure and mechanism of finely digging, the jack are fixedly installed in the top in shell；
The jack include driving device, drive connection part, screw rod, screw rod fixing piece, movable block, connecting rod, pressing plate and
The drive shaft of pneumatic cylinder, the driving device is connect by drive connection part with the screw rod, between the movable block and screw rod
It by being threadedly engaged socket, and can be moved up and down by screw rod rotate driving, the side of the movable block is fixedly connected with
Sliding block, the lower end of the screw rod passes through bearing connecting screw fixing piece, is provided with pressing plate below the screw rod fixing piece, described
The top of pressing plate is provided with pressing plate connector, is connected between the movable block and pressing plate connector by connecting rod, the air pressure
The side of cylinder is provided with mounting plate, and the sliding rail of vertical direction is provided on the mounting plate, is tight between the sliding block and sliding rail
Leakproof fit to be slidably connected, one end of the screw rod fixing piece is connect with screw rod, and the other end is fixedly installed in the lower end of mounting plate,
The drive connection part is fixedly installed in the upper end of mounting plate, and the pneumatic cylinder is vertically arranged, and piston rod directed downwardly is fixed to be connected
Pressing plate is connect, the bottom of the pressing plate is fixedly connected with one group of mechanism connecting rod of digging；
Controller is provided on the agricultural traction engine, control is electrically connected in the driving device of three jacks
Controller is electrically connected in the pneumatic cylinder of device, three jacks.
Further, the weeding mechanism includes first motor and the cutter head shaft by first motor driving, is turned in cutter head
The lower parallel of axis is socketed with the first cutter head mounting plate and the second cutter head mounting plate, and the first cutter head mounting plate is set to second
The top of cutter head mounting plate, the first cutter head mounting plate and the second cutter head mounting plate are cyclic structure, first cutter head
The outer diameter of mounting plate be greater than the second cutter head mounting plate outer diameter, the periphery of the first cutter head mounting plate be uniformly distributed be provided with it is multiple
First cutter head is uniformly distributed in the periphery of the second cutter head mounting plate and is provided with the second cutter head, and the first motor is electrically connected institute
Controller is stated, the first motor is set in first sleeve, and the upper end of the first sleeve connects the corresponding rooter
Structure connecting rod.
Further, bulk mechanism of digging includes big colter and big colter installation part, and the big colter is by ploughing greatly
Head installation part is installed on described dig in mechanism connecting rod.
Further, three openings arranged side by side, the radio and tape player is arranged in corresponding three groups of the bottom of shell mechanism of digging
Structure is used to adjust the height of mechanism of digging, while the mechanism that can make to dig is received to interior of shell.
Further, the mechanism of finely digging includes turntable, insertion pipe, shank and head of digging, the head packet of digging
It includes axle sleeve and is uniformly distributed the hack piece for being set to axle sleeve surrounding, the bottom of the turntable is fixedly connected with insertion pipe, the grafting
The head of pipe is connected with reinforcing pipe, and one end of the shank is fixedly attached the head of digging, while being inserted into grafting from the other end
Pipe is provided with the first spliced eye on the shank, and there are two for the both ends setting of corresponding first spliced eye on the insertion pipe
Two spliced eyes are provided with plugboard through first spliced eye and the second spliced eye, make insertion pipe and shank secure fit
Assembly, the turntable top connect the second motor, the rotation of turntable described in second motor driven, and second motor electrically connects
The controller is connect, second motor is set in second sleeve, and the connection of the upper end of the second sleeve is corresponding described to be turned over
Native mechanism connecting rod.
Further, the outer casing bottom is provided with infrared inductor, the infrared inductor communication connection control
Device, the infrared inductor send the signal to controller after sensing plant infrared ray, and controller automatically controls weeding dress
The decentralization set carries out the pre- weeding in farmland.
Further, the fixed frame and mounting rack are detachably connected.
Further, the hack piece is curved arcuate structure, and the bending side of the hack piece on same axle sleeve
To consistent.
The invention has the advantages that the automatic rooter in farmland of the invention drives the row in farmland by farm tractor
It walks, by the way that one group of preparatory weeding of weeding mechanism of forefront is arranged, for preparatory removing obstacles of digging, centre one group of bulk of setting is turned over
Native mechanism tentatively digs to farmland, especially the larger farmland of soil hardness, and one group of mechanism of finely digging is arranged in rear, to first
The bulk soil for walking generation of digging smash paving, and finely digs so that farmland is realized；By contracting mechanism realize weeding mechanism,
Bulk is digged mechanism and adjusting of the mechanism apart from ground level of finely digging, while can be at the end of digging by weeding mechanism, big
Block digs mechanism and mechanism rising receipts of finely digging to interior of shell, is convenient for plant maintenance, extension service life of equipment；Pass through control
The operation of device control jack and mechanism of digging processed, high degree of automation.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of structural schematic diagram of the automatic rooter in farmland according to the present invention；
Fig. 2 is jack main view according to the present invention；
Fig. 3 is the side view of jack according to the present invention；
Fig. 4 is the structural schematic diagram of weeding mechanism according to the present invention；
Fig. 5 is the structural schematic diagram of mechanism according to the present invention of finely digging.
In figure: 1 rooter ontology, 2 agricultural traction engines, 3 controllers, 4 fixed frames, 5 mounting racks, 6 dig device, 7 shells,
8 weeding mechanisms, 9 bulks are digged mechanism, and 10 finely dig mechanisms, 11 plant infrared inductors, 12 jacks, 13 driving dresses
It sets, 14 drive connection parts, 15 screw rods, 16 movable blocks, 17 screw rod fixing pieces, 18 connecting rods, 19 pressing plates, 20 pressing plate connectors, 21
Pneumatic cylinder, 22 mounting plates, 23 sliding rails, 24 sliding blocks, 25 dig mechanism connecting rod, 26 cylinder piston rods, 27 turntables, 28 insertion pipes,
29 shanks, 30 reinforcing pipes, 31 axle sleeves, 32 hack pieces, 33 second sleeves, 34 plugboards, 35 cutter head shafts, 36 first cutter heads peace
Loading board, 37 first cutter heads, 38 second cutter head mounting plates, 39 second cutter heads, 40 first sleeves.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
As shown in Figure 1, a kind of automatic rooter in farmland, including rooter ontology 1, the rooter ontology 1 include agricultural
Tractor 2, the rear side of the agricultural traction engine 2 are fixedly connected with fixed frame 4, and the bottom of the fixed frame 4 is fixedly connected with peace
5 are shelved, the bottom of the mounting rack 5 is fixedly connected with device 6 of digging, and the device 6 of digging includes shell 1 and is located under shell
The mechanism of digging of side, the mechanism of digging are set as three groups from front to back, and respectively weeding mechanism 8, bulk is digged mechanism 9 and essence
Carefully dig mechanism 10, the shell 7 be internally provided with three be separately connected weeding mechanism 8, bulk digs and mechanism 9 and finely digs
The jack 12 of mechanism 10, the jack 12 are fixedly installed in the top in shell 7, correspond to three below the shell 7
Three openings arranged side by side are arranged in group mechanism of digging, and the jack 12 is used to adjust the height of mechanism of digging, while can make to turn over
Native mechanism is received to shell 7；
The jack 12 includes driving device 13, drive connection part 14, screw rod 15, screw rod fixing piece 17, movable block 16, connects
The drive shaft of extension bar 18, pressing plate 19 and pneumatic cylinder 21, the driving device 13 is connected by drive connection part 14 and the screw rod 15
It connects, by being threadedly engaged socket between the movable block 16 and screw rod 15, and can be moved up and down by 15 rotate driving of screw rod
Dynamic, the side of the movable block 16 is fixedly connected with sliding block 24, and the lower end of the screw rod 15 passes through bearing connecting screw fixing piece
17, the lower section of the screw rod fixing piece 17 is provided with pressing plate 19, and the top of the pressing plate 19 is provided with pressing plate connector 20, described
It being connected between movable block 16 and pressing plate connector 20 by connecting rod 18, the side of the pneumatic cylinder 21 is provided with mounting plate 22,
It is provided with the sliding rail 23 of vertical direction on the mounting plate 22, is that close-fitting sliding connects between the sliding block 24 and sliding rail 23
It connects, one end of the screw rod fixing piece 17 is connect with screw rod 15, and the other end is fixedly installed in the lower end of mounting plate 22, the driving
Connector 14 is fixedly installed in the upper end of mounting plate 22, and the pneumatic cylinder 21 is vertically arranged, and cylinder piston rod 26 directed downwardly is solid
Surely pressing plate 19 is connected, the bottom of the pressing plate 19 is fixedly connected with one group of mechanism connecting rod 25 of digging, and one group of mechanism of digging is
Multiple mechanisms of digging arranged side by side；The jack 12 is improved and is received by 21 double drive of electric motor driven screw mechanism and pneumatic cylinder
The stability that laying mechanism 12 is run.
Controller 3 is provided on the agricultural traction engine 2, the driving device 13 of three jacks 12 is electrical respectively
Controller 3 is connected, controller 3 is electrically connected in the pneumatic cylinder 21 of three jacks 12.
Preferably, the weeding mechanism 8 includes first motor and the cutter head shaft 35 by first motor driving, in knife
The lower parallel of head shaft 35 is socketed with the first cutter head mounting plate 36 and the second cutter head mounting plate 38, the first cutter head mounting plate
36 are set to the top of the second cutter head mounting plate 38, and the first cutter head mounting plate 36 and the second cutter head mounting plate 38 are ring-type
Structure, the outer diameter of the first cutter head mounting plate 36 is greater than the outer diameter of the second cutter head mounting plate 38, in the first cutter head mounting plate 36
Periphery be uniformly distributed and be provided with multiple first cutter heads 37, be uniformly distributed in the periphery of the second cutter head mounting plate 38 and be provided with second
Cutter head 39, the first motor are electrically connected the controller 3, and the first motor is set in first sleeve 40, and described the
The corresponding mechanism connecting rod 25 of digging of the upper end connection of one sleeve 40, first cutter head 37 is for cutting off higher plant
Strain, lower second cutter head 39 of position height are crawled for cutting off in the bottom grass on ground.Infrared induction is arranged in 7 bottom of shell
Device, the infrared inductor send the signal to controller after sensing plant infrared ray, and controller automatically controls weeding dress
The decentralization set carries out farmland and digs pre- weeding.
Preferably, bulk mechanism 9 of digging includes big colter and big colter installation part, and the big colter passes through big
Colter installation part is installed on described dig in mechanism connecting rod.
Preferably, the mechanism 10 of finely digging includes turntable 27, insertion pipe 28, shank 29 and head of digging, institute
It states head of digging to include axle sleeve 31 and be uniformly distributed the hack piece 32 for being set to axle sleeve surrounding, the bottom of the turntable 27 is fixedly connected
Insertion pipe 28, the head of the insertion pipe 28 are connected with reinforcing pipe 30, and one end of the shank 29 is fixedly attached described dig
Head, while it being fitted close insertion insertion pipe 28 from the other end, the first spliced eye, the insertion pipe are provided on the shank 29
There are two the second spliced eyes for the both ends setting of corresponding first spliced eye on 28, set through first spliced eye and the second spliced eye
It is equipped with plugboard 34, assembles insertion pipe 28 and 29 secure fit of shank, 27 top of turntable connects the second motor, described
Turntable 27 described in second motor driven rotates, and controller 3 described in second electrical connection of motor, second motor is set to
In second sleeve 33, the corresponding mechanism connecting rod 25 of digging of the upper end connection of the second sleeve 33.
Further, the outer casing bottom is provided with infrared inductor 11,11 communication connection of infrared inductor
Controller 3, the infrared inductor 11 send the signal to controller 3 after sensing plant infrared ray, and controller 3 is controlled automatically
The decentralization of weeding mechanism 8 processed carries out the pre- weeding in farmland.
Preferably, the fixed frame 4 and mounting rack 5 are detachably connected.
Preferably, the hack piece 32 is curved arcuate structure, and hack piece 32 on same axle sleeve 31
Bending direction is consistent.
The automatic rooter in farmland of the invention is driven by farm tractor and is walked in farmland, and setting forefront is passed through
One group of preparatory weeding of weeding mechanism, for preparatory removing obstacles of digging, centre one group of bulk of setting is digged mechanism, is carried out just to farmland
Step is digged, especially the larger farmland of soil hardness, and one group of mechanism of finely digging is arranged in rear, to the bulk soil of generation of tentatively digging into
Row, which is smashed, to be paved, and is finely digged so that farmland is realized；It realizes that weeding mechanism, bulk are digged by contracting mechanism mechanism and finely to turn over
Adjusting of the native mechanism apart from ground level, while weeding mechanism, bulk can be digged at the end of digging and mechanism and finely be digged
Mechanism is received to interior of shell, and plant maintenance is convenient for, and extends service life of equipment；The weeding mechanism, bulk are digged mechanism and essence
The jack for mechanism of carefully digging passes through controller control respectively, can individually select wherein one group, two groups or three groups of work, leads to
It crosses and plant infrared inductor is set in outer casing bottom, send a signal to controller when sensing that farmland needs pre- weeding, control
The jack that device automatically controls weeding mechanism transfers weeding mechanism, while opening first motor and carrying out weeding work；Pass through control
Device processed automatically controls the operation of jack and mechanism of digging, high degree of automation.
It digs and finely digs in advance in short, automatic weeding, bulk can be achieved in the present invention, so that farmland is digged and settle at one go, and
Quality of digging is high, and farmland can directly carry out subsequent sowing work, reduces labour, greatly improves working efficiency of digging.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (8)
1. a kind of automatic rooter in farmland, which is characterized in that including rooter ontology, the rooter ontology includes that agricultural is dilatory
Machine is fixedly connected with fixed frame on rear side of the agricultural traction engine, and the bottom of the fixed frame is connected with mounting rack, the installation
The bottom of frame is fixedly connected with device of digging, and the device of digging includes shell and the mechanism of digging below shell, described
Mechanism of digging is set as three groups from front to back, and respectively weeding mechanism, bulk is digged mechanism and mechanism of finely digging, the shell
Be internally provided with three be separately connected weeding mechanism, bulk is digged mechanism and the jack of mechanism of finely digging, the folding and unfolding
Mechanism is fixedly installed in the top in shell；
The jack include driving device, drive connection part, screw rod, screw rod fixing piece, movable block, connecting rod, pressing plate and
The drive shaft of pneumatic cylinder, the driving device is connect by drive connection part with the screw rod, between the movable block and screw rod
It by being threadedly engaged socket, and can be moved up and down by screw rod rotate driving, the side of the movable block is fixedly connected with
Sliding block, the lower end of the screw rod passes through bearing connecting screw fixing piece, is provided with pressing plate below the screw rod fixing piece, described
The top of pressing plate is provided with pressing plate connector, is connected between the movable block and pressing plate connector by connecting rod, the air pressure
The side of cylinder is provided with mounting plate, and the sliding rail of vertical direction is provided on the mounting plate, is tight between the sliding block and sliding rail
Leakproof fit to be slidably connected, one end of the screw rod fixing piece is connect with screw rod, and the other end is fixedly installed in the lower end of mounting plate,
The drive connection part is fixedly installed in the upper end of mounting plate, and the pneumatic cylinder is vertically arranged, and piston rod directed downwardly is fixed to be connected
Pressing plate is connect, the bottom of the pressing plate is fixedly connected with one group of mechanism connecting rod of digging；
Controller is provided on the agricultural traction engine, control is electrically connected in the driving device of three jacks
Controller is electrically connected in the pneumatic cylinder of device, three jacks.
2. the automatic rooter in farmland as described in claim 1, which is characterized in that the weeding mechanism include first motor and by
The cutter head shaft of first motor driving is socketed with the first cutter head mounting plate and the installation of the second cutter head in the lower parallel of cutter head shaft
Plate, the first cutter head mounting plate are set to the top of the second cutter head mounting plate, the first cutter head mounting plate and the second cutter head
Mounting plate is cyclic structure, and the outer diameter of the first cutter head mounting plate is greater than the outer diameter of the second cutter head mounting plate, in the first knife
The periphery of head mounting plate, which is uniformly distributed, is provided with multiple first cutter heads, is uniformly distributed and is provided in the periphery of the second cutter head mounting plate
Second cutter head, the first motor are electrically connected the controller, and the first motor is set in first sleeve, and described first
The corresponding mechanism connecting rod of digging of the upper end connection of sleeve.
3. the automatic rooter in farmland as described in claim 1, which is characterized in that the bulk dig mechanism include big colter and
Big colter installation part, the big colter are installed on described dig in mechanism connecting rod by big colter installation part.
4. the automatic rooter in farmland as described in claim 1, which is characterized in that the corresponding three groups of rooters in the bottom of the shell
Three openings arranged side by side are arranged in structure, and the jack is used to adjust the height of mechanism of digging, at the same the mechanism that can make to dig receive to
Interior of shell.
5. the automatic rooter in farmland as described in claim 1, which is characterized in that the mechanism of finely digging includes turntable, inserts
Adapter tube, shank and head of digging, the head of digging include axle sleeve and are uniformly distributed the hack piece for being set to axle sleeve surrounding, and described turn
The bottom of disk is fixedly connected with insertion pipe, and the head of the insertion pipe is connected with reinforcing pipe, and one end of the shank is fixedly attached
The head of digging, while it being fitted close insertion insertion pipe from the other end, the first spliced eye is provided on the shank, it is described to insert
There are two the second spliced eyes for the both ends setting of corresponding first spliced eye on adapter tube, run through first spliced eye and the second spliced eye
It is provided with plugboard, assembles insertion pipe and shank secure fit, the turntable top connects the second motor, second electricity
Machine drives the turntable rotation, controller described in second electrical connection of motor, and second motor is set to second sleeve
It is interior, the corresponding mechanism connecting rod of digging of the upper end connection of the second sleeve.
6. the automatic rooter in farmland as described in claim 1, which is characterized in that the outer casing bottom is provided with infrared induction
Device, the infrared inductor communication connection controller, the infrared inductor send out signal after sensing plant infrared ray
It send to controller, controller automatically controls the decentralization of weeder, carries out farmland and digs pre- weeding.
7. the automatic rooter in farmland as described in claim 1, which is characterized in that the fixed frame and mounting rack detachably connect
It connects.
8. the automatic rooter in farmland as claimed in claim 5, which is characterized in that the hack piece is curved arcuate structure,
And the bending direction of the hack piece on same axle sleeve is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710865937.9A CN109526371A (en) | 2017-09-22 | 2017-09-22 | A kind of automatic rooter in farmland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710865937.9A CN109526371A (en) | 2017-09-22 | 2017-09-22 | A kind of automatic rooter in farmland |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109526371A true CN109526371A (en) | 2019-03-29 |
Family
ID=65828020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710865937.9A Pending CN109526371A (en) | 2017-09-22 | 2017-09-22 | A kind of automatic rooter in farmland |
Country Status (1)
| Country | Link |
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| CN (1) | CN109526371A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110178462A (en) * | 2019-05-29 | 2019-08-30 | 广西农业职业技术学院 | A kind of novel agricultural plantation device of digging |
-
2017
- 2017-09-22 CN CN201710865937.9A patent/CN109526371A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110178462A (en) * | 2019-05-29 | 2019-08-30 | 广西农业职业技术学院 | A kind of novel agricultural plantation device of digging |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190329 |
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| WD01 | Invention patent application deemed withdrawn after publication |