CN107814277A - A kind of power cable pay off rack balance adjustment mechanism - Google Patents
A kind of power cable pay off rack balance adjustment mechanism Download PDFInfo
- Publication number
- CN107814277A CN107814277A CN201711032550.1A CN201711032550A CN107814277A CN 107814277 A CN107814277 A CN 107814277A CN 201711032550 A CN201711032550 A CN 201711032550A CN 107814277 A CN107814277 A CN 107814277A
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- CN
- China
- Prior art keywords
- whippletree
- support column
- lower house
- shaped chassis
- plate
- 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.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4457—Arrangements of the frame or housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/34—Handled filamentary material electric cords or electric power cables
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of power cable pay off rack balance adjustment mechanism, whippletree is placed with the top of support meanss, the inner chamber of whippletree is provided with two-way hydraulic cylinder, the both ends of bidirectional hydraulic bar are provided with piston rod, the outer surface of piston rod is bonded with cushion pad, the bottom of support meanss is provided with T-shaped chassis, and the bottom on T-shaped chassis is provided with balance regulator, and balance regulator is made up of upper shell, attachment bolt, damping rubber block, location-plate, spring, lower house and rubber damping plate；This power cable pay off rack balance adjustment mechanism, piston rod at the uniform velocity, slowly jacks up in the opposite direction respectively, and produce clamping force from the inner ring of cable hank, ensure that the process of retractable cable is more steady, multigroup balance regulator remains stable jointly, it is ensured that single unit system distribution of force is more uniform, and work is more stable, also avoid the uneven phenomenon of local pressure from occurring, strengthen internal structure mounting stability.
Description
Technical field
The present invention relates to electric power technical field of transportation, specially a kind of power cable pay off rack balance adjustment mechanism.
Background technology
Power cable is typically in high vacancy, or in underground, or even pipeline, the laying of the power cable of different regions
There is also certain work difficulty, existing power cable take-up and pay-off device is usually pay off rack, or wire barrow, existing to put
Coil holder, or wire barrow can not all fix cable hank automatically, and meeting in the engineering of retractable cable, damages cable hank again, and cable hank passes through
The loss accumulated over a long period can have crack, it is also possible to potential safety hazard be produced, moreover, cable hank unwrapping wire or the process of take-up
In, it is necessary to undertake a part operating pressure, this pressure can cause a part of impact to pay off rack, if can not effectively offset
The pressure of the type, then pay off rack can be caused to damage, and influence the normal operation of cable drum.
The content of the invention
It is an object of the invention to provide a kind of power cable pay off rack balance adjustment mechanism, possess and operate steadily, safety
The characteristics of coefficient is high, solve in the prior art, be easy to rock in the cable disc course of work, the problem of destabilizing factor is more.
To achieve the above object, the present invention provides following technical scheme：
A kind of power cable pay off rack balance adjustment mechanism, including whippletree and support meanss, the top of the support meanss
Be placed with whippletree, whippletree is flexibly connected with support meanss, the support meanss by T-shaped chassis, main support column, secondary support column, hold
Seat and roller composition are carried, main support column is provided with the top of T-shaped chassis, the bottom of the main support column is fixed with T-shaped chassis welds
Connect, the side of main support column is provided with time support column, and secondary support column is uniformly arranged around the outer ring of main support column, described support
The bottom of post is connected with T-shaped chassis, and load bearing seat is provided with the top of secondary support column, and the inside of load bearing seat is arranged at intervals with roller,
Whippletree is provided between adjacent roller, the outer ring of the whippletree offers circular hole, and circular hole opposes in the outer surface of whippletree and set,
The inside of whippletree is arranged to cavity structure, and the inner chamber of the whippletree is installed with two-way hydraulic cylinder, the both ends of bidirectional hydraulic bar
Piston rod is provided with, the input of piston rod is fixedly connected with two-way hydraulic cylinder, and the outer surface of the piston rod is covered with slow
Punching pad, cushion pad are fixed with piston rod and bonded；
The bottom on the T-shaped chassis is provided with balance regulator, and balance regulator is by upper shell, attachment bolt, rubber
Glue buffer stopper, location-plate, spring, lower house and rubber damping plate are formed, and attachment bolt is provided with the center of the upper shell,
Attachment bolt is fixedly connected through the end face of upper shell and with upper shell, and rubber buffer is provided with the top of the attachment bolt
Block, damping rubber block are fixed with attachment bolt and bonded, and the bottom of attachment bolt is provided with location-plate, and the location-plate is with coupling spiral shell
Bolt is fixedly connected, and the bottom surface of location-plate is provided with spring, and the bottom of spring is provided with lower house, and the spring is in the upper of lower house
Surface is vertically arranged, and lower house is set in parallel in the bottom of upper shell, and rubber resistance is provided between the lower house and upper shell
Buddhist nun's plate, the both sides of rubber damping plate are brought into close contact with lower house, upper shell respectively, and the bottom of the lower house is provided with solid bottom
Seat, solid base are horizontally set on the bottom on T-shaped chassis.
The bottom surface on the top surface of the damping rubber block and T-shaped chassis, which is fixed, to be bonded, and the bottom surface of damping rubber block is with coupling spiral shell
Bolt is seamless applying.
The whippletree active card is mounted between adjacent roller, and the outer surface of roller is handled by smooth technique for grinding.
The diameter dimension of the cushion pad is corresponding with the diameter dimension of circular hole to coincide, and the piston rod at two-way hydraulic cylinder both ends passes through
Wear circular hole and extend to the outer ring of whippletree.
The balance regulator is vertically arranged between T-shaped chassis and solid base, and balance regulator is on T-shaped chassis
Bottom equi-spaced apart set.
The top surface of the spring contacts connection with the bottom surface of location-plate, and bottom surface and the lower house of spring abut, spring
Both ends be welded and fixed respectively with location-plate, lower house.
Compared with prior art, beneficial effects of the present invention are as follows：
This power cable pay off rack balance adjustment mechanism, piston rod at the uniform velocity, slowly jack up in the opposite direction respectively, and with
The inner ring of cable hank abuts, and produces clamping force from the inner ring of cable hank so that cable hank remains stable, and cable hank is general
Using wood materials, cushion pad soft texture, cushion pad is bonded with cable hank flexibility, can effectively avoid cable hank stress from damaging
Ruin, also ensure that the process of retractable cable is more steady, balance regulator structural strength is high, and carrying is stable, and multigroup balance is adjusted
Regulating device remains stable jointly, it is ensured that single unit system distribution of force is more uniform, and work is more stable, avoids T-shaped chassis stress
Skew is produced, damping rubber block, spring and rubber buffer play buffering effect jointly, while offset foreign impacts, avoid growing
Wear phenomenon caused by the mutual friction of structure phase after time service, the stabilization of pay off rack is maintained, also avoid local pressure is uneven from showing
As occurring, strengthen internal structure mounting stability.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is partial structurtes top view of the present invention；
Fig. 3 is balance regulator structural representation of the present invention；
Fig. 4 is two-way hydraulic cylinder installation effect figure of the present invention；
Fig. 5 is two-way hydraulic cylinder structure chart of the present invention；
Fig. 6 is support meanss local structural graph of the present invention.
In figure：1- whippletrees, 11- circular holes, 2- support meanss, 21-T types chassis, the main support columns of 22-, 23- support column, 24-
Load bearing seat, 25- rollers, 3- two-way hydraulic cylinders, 31- piston rods, 32- cushion pads, 4- balance regulators, 41- upper shells, 42-
Attachment bolt, 43- damping rubber blocks, 44- location-plates, 45- springs, 46- lower houses, 47- rubber dampings plate, 5- solid bases.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1-6, a kind of power cable pay off rack balance adjustment mechanism, including whippletree 1 and support meanss 2 are referred to, are supported
The top of device 2 is placed with whippletree 1, and whippletree 1 is flexibly connected with support meanss 2, and support meanss 2 are by T-shaped chassis 21, main support column
22nd, secondary support column 23, load bearing seat 24 and roller 25 form, and the top on T-shaped chassis 21 is provided with main support column 22, main support column 22
Bottom and T-shaped chassis 21 fix and weld, the side of main support column 22 is provided with time support column 23, main support column 22 and time support
Post 23 is supported jointly, and secondary support column 23 is uniformly arranged around the outer ring of main support column 22, bottom and the T-shaped chassis of secondary support column 23
21 are connected, and the T-shaped structure of chassis 21 is more reasonable, and more stable, the top of secondary support column 23 is provided with load bearing seat 24, load bearing seat 24
The weight of whippletree 1 is undertaken, the inside of load bearing seat 24 is arranged at intervals with roller 25, whippletree 1 is provided between adjacent roller 25, horizontal
The outer surface of thick stick 1 and roller 25, which is uniformly soaked, fluid, so that it is guaranteed that cable hank rotates and drives whippletree 1 smoothly to rotate, order
Frictional force is reduced to minimum between whippletree 1 and roller 25, can extend the working life of whole equipment, and the active card of whippletree 1 is mounted in
Between adjacent roller 25, the outer surface of roller 25 is handled by smooth technique for grinding, and cable hank is sleeved on into the outer of whippletree 1
Circle, whippletree 1 rotates between roller 25, so as to drive the cable hank fixed-axis rotation of its outer surface and reach the effect of retractable cable,
The main body of support meanss 2 is made of solid welded steel, and the structural strength of support meanss 2 is high, operates steadily, the outer ring of whippletree 1 is opened
Provided with circular hole 11, circular hole 11 opposes in the outer surface of whippletree 1 and set, and the inside of whippletree 1 is arranged to cavity structure, whippletree 1 it is interior
Chamber is installed with two-way hydraulic cylinder 3, and the both ends of bidirectional hydraulic bar 3 are provided with piston rod 31, the input of piston rod 31 with
Two-way hydraulic cylinder 3 is fixedly connected, and two-way hydraulic cylinder 3 operates and jacks up piston rod 31, and the outer surface of piston rod 31 is covered with buffering
Pad 32, cushion pad 32 are fixed with piston rod 31 and bonded, and the diameter dimension of cushion pad 32 is corresponding with the diameter dimension of circular hole 11 to coincide,
The piston rod 31 at the both ends of two-way hydraulic cylinder 3 is through circular hole 11 and extends to the outer ring of whippletree 1, starts two-way hydraulic cylinder 3, piston rod
31 at the uniform velocity, slowly jack up in the opposite direction respectively, and are abutted with the inner ring of cable hank, and are produced from the inner ring of cable hank
Clamping force so that cable hank remains stable in the course of the work, and cable hank typically uses wood materials, and the quality of cushion pad 32 is soft
Soft, cushion pad 32 is bonded with cable hank flexibility, can effectively avoid cable hank stress from damaging, and also ensures that the mistake of retractable cable
Cheng Gengjia is steady.
The bottom on T-shaped chassis 21 is provided with balance regulator 4, and balance regulator 4 is in T-shaped chassis 21 and solid base
It is vertically arranged between 5, bottom equi-spaced apart of the balance regulator 4 on T-shaped chassis 21 is set, and multigroup balance regulator 4 is common
It is stable with maintenance, it is ensured that single unit system distribution of force is more uniform, and work is more stable, avoids the T-shaped stress of chassis 21 from producing partially
Move, balance regulator 4 is by upper shell 41, attachment bolt 42, damping rubber block 43, location-plate 44, spring 45, the and of lower house 46
Rubber damping plate 47 is formed, and attachment bolt 42 is provided with the center of upper shell 41, and attachment bolt 42 runs through the end of upper shell 41
Face is simultaneously fixedly connected with upper shell 41, and the top of attachment bolt 42 is provided with damping rubber block 43, the top surface of damping rubber block 43
Fix and bond with the bottom surface on T-shaped chassis 21, the bottom surface of damping rubber block 43 and attachment bolt 42 are seamless applying, when single unit system meets with
During by external impacts, T-shaped chassis 21 is bonded with the flexibility of damping rubber block 43, the soft texture of damping rubber block 43, is avoided for a long time
Wear phenomenon caused by the mutual friction of structure phase after work, damping rubber block 43 are fixed with attachment bolt 42 and bonded, attachment bolt 42
Bottom be provided with location-plate 44, location-plate 44 is fixedly connected with attachment bolt 42, and the bottom surface of location-plate 44 is provided with spring 45,
The bottom of spring 45 is provided with lower house 46, and spring 45 is vertically arranged in the upper surface of lower house 46, and lower house 46 be arranged in parallel
In the bottom of upper shell 41, rubber damping plate 47, the top surface of spring 45 and positioning are provided between lower house 46 and upper shell 41
The bottom surface contact connection of plate 44, bottom surface and the lower house 46 of spring 45 abut, the both ends of spring 45 respectively with location-plate 44,
Lower house 46 is welded and fixed, and the structural strength of balance regulator 4 is high, and carrying is stable, and the both sides of rubber damping plate 47 are respectively with
Housing 46, upper shell 41 are brought into close contact, and rubber damping plate 47 protects lower house 46 and upper shell 41 simultaneously, avoid lower house 46 with
The phase mutual friction of upper shell 41 produces breakage, and the bottom of lower house 46 is provided with solid base 5, and lower house 46 passes through solid base 5
Common fixed, solid base 5 is horizontally set on the bottom on T-shaped chassis 21, during cable hank take-up, the overall weight of cable hank
Change is produced, and the center of cable hank can also produce skew therewith, and as the stress of support meanss 2 is not gradually reciprocity, both sides
The actual bearer intensity of support meanss 2 is not also reciprocity, the now stress of spring 45 extruding in balance regulator 4, and change reality
Heart base 5 and the T-shaped actual range of chassis 21, so as to avoid solid base 5 from producing skew, damping rubber block 43, spring 45 and rubber
Glue cushion pad 6 plays buffering effect jointly, while offsets foreign impacts, avoids after working long hours caused by the mutual friction of structure phase
Wear phenomenon, maintains the stabilization of pay off rack, also avoids the uneven phenomenon of local pressure from occurring, and it is stable to strengthen internal structure installation
Property.
In summary：The power cable pay off rack balance adjustment mechanism, piston rod 31 are distinguished at the uniform velocity, slowly towards phase negative side
Abutted to jack-up, and with the inner ring of cable hank, and clamping force is produced from the inner ring of cable hank so that cable hank remains steady
Fixed, cable hank typically uses wood materials, the soft texture of cushion pad 32, and cushion pad 32 is bonded with cable hank flexibility, can be effective
Avoid cable hank stress from damaging, also ensure that the process of retractable cable is more steady, the structural strength of balance regulator 4 is high,
Carrying is stable, and multigroup balance regulator 4 remains stable jointly, it is ensured that single unit system distribution of force is more uniform, and work is more
It is stable, avoid the T-shaped stress of chassis 21 from producing skew, damping rubber block 43, spring 45 play buffering effect with rubber buffer 6 jointly
Fruit, while foreign impacts are offset, wear phenomenon caused by the mutual friction of structure phase after working long hours is avoided, maintains the steady of pay off rack
It is fixed, also avoid the uneven phenomenon of local pressure from occurring, strengthen internal structure mounting stability.
It should be noted that the installation direction of two-way hydraulic cylinder 3 is not limited such as the mounting means in Fig. 4, can also use
Star mounting structure, so, the quantity of circular hole 11 are consequently increased, and can be improved and the conflict power of the inner ring of cable hank.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (2)
1. a kind of power cable pay off rack balance adjustment mechanism, including whippletree (1) and support meanss (2), it is characterised in that：It is described
Whippletree (1) is placed with the top of support meanss (2), whippletree (1) is flexibly connected with support meanss (2), the support meanss (2) by
T-shaped chassis (21), main support column (22), secondary support column (23), load bearing seat (24) and roller (25) composition, T-shaped chassis (21)
Top is provided with main support column (22), bottom and the fixed welding in T-shaped chassis (21), the main support column of the main support column (22)
(22) side is provided with time support column (23), and secondary support column (23) is uniformly arranged around the outer ring of main support column (22), described
The bottom of secondary support column (23) is connected with T-shaped chassis (21), and load bearing seat (24), load bearing seat are provided with the top of secondary support column (23)
(24) inside is arranged at intervals with roller (25), is provided with whippletree (1) between adjacent roller (25), the whippletree (1) it is outer
Circle offers circular hole (11), and circular hole (11) opposes in the outer surface of whippletree (1) and set, and the inside of whippletree (1) is arranged to cavity knot
Structure, the inner chamber of the whippletree (1) are installed with two-way hydraulic cylinder (3), and the both ends of bidirectional hydraulic bar (3) are provided with piston rod
(31), the input of piston rod (31) is fixedly connected with two-way hydraulic cylinder (3), and the outer surface of the piston rod (31) is covered with slow
Punching pad (32), cushion pad (32) and the fixed bonding of piston rod (31)；
The bottom of the T-shaped chassis (21) is provided with balance regulator (4), and balance regulator (4) is by upper shell (41), connection
Connecting bolt (42), damping rubber block (43), location-plate (44), spring (45), lower house (46) and rubber damping plate (47) composition,
Be provided with attachment bolt (42) at the center of the upper shell (41), attachment bolt (42) through the end face of upper shell (41) and with
Upper shell (41) is fixedly connected, and damping rubber block (43), damping rubber block (43) are provided with the top of the attachment bolt (42)
With the fixed bonding of attachment bolt (42), the bottom of attachment bolt (42) is provided with location-plate (44), the location-plate (44) and connection
Connecting bolt (42) is fixedly connected, and the bottom surface of location-plate (44) is provided with spring (45), and the bottom of spring (45) is provided with lower house
(46), the spring (45) is vertically arranged in the upper surface of lower house (46), and lower house (46) is set in parallel in upper shell (41)
Bottom, be provided with rubber damping plate (47) between the lower house (46) and upper shell (41), the two of rubber damping plate (47)
Side is brought into close contact with lower house (46), upper shell (41) respectively, and the bottom of the lower house (46) is provided with solid base (5),
Solid base (5) is horizontally set on the bottom of T-shaped chassis (21), top surface and the T-shaped chassis (21) of the damping rubber block (43)
Bottom surface fix and bond, the bottom surface of damping rubber block (43) and attachment bolt (42) are seamless applying, the whippletree (1) activity clamping
Between adjacent roller (25), the outer surface of roller (25) is handled by smooth technique for grinding, the cushion pad (32) it is straight
Footpath size is corresponding with the diameter dimension of circular hole (11) to coincide, and the piston rod (31) at two-way hydraulic cylinder (3) both ends runs through circular hole (11)
And the outer ring of whippletree (1) is extended to, the balance regulator (4) sets vertically between T-shaped chassis (21) and solid base (5)
Put, bottom equi-spaced apart of the balance regulator (4) in T-shaped chassis (21) is set.
A kind of 2. power cable pay off rack balance adjustment mechanism according to claim 1, it is characterised in that：The spring
(45) top surface contacts connection with the bottom surface of location-plate (44), and bottom surface and the lower house (46) of spring (45) abut, spring
(45) both ends are welded and fixed with location-plate (44), lower house (46) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711032550.1A CN107814277A (en) | 2017-10-30 | 2017-10-30 | A kind of power cable pay off rack balance adjustment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711032550.1A CN107814277A (en) | 2017-10-30 | 2017-10-30 | A kind of power cable pay off rack balance adjustment mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107814277A true CN107814277A (en) | 2018-03-20 |
Family
ID=61603473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711032550.1A Withdrawn CN107814277A (en) | 2017-10-30 | 2017-10-30 | A kind of power cable pay off rack balance adjustment mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107814277A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112010206A (en) * | 2020-08-26 | 2020-12-01 | 万全重工（常州）机械有限公司 | Bidirectional self-balancing chassis of overhead working truck |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203278156U (en) * | 2013-04-21 | 2013-11-06 | 卢鹏 | Cable paying-off device with damping function |
| CN104269778A (en) * | 2014-10-22 | 2015-01-07 | 天津港欧亚国际集装箱码头有限公司 | Cable torsion adjusting device applicable to quay crane |
| CN205298371U (en) * | 2015-12-31 | 2016-06-08 | 天津嘉诚信科技有限公司 | Damping spring shock absorber |
| CN206457114U (en) * | 2016-12-23 | 2017-09-01 | 徐向军 | A kind of power cable take-up and pay-off device |
-
2017
- 2017-10-30 CN CN201711032550.1A patent/CN107814277A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203278156U (en) * | 2013-04-21 | 2013-11-06 | 卢鹏 | Cable paying-off device with damping function |
| CN104269778A (en) * | 2014-10-22 | 2015-01-07 | 天津港欧亚国际集装箱码头有限公司 | Cable torsion adjusting device applicable to quay crane |
| CN205298371U (en) * | 2015-12-31 | 2016-06-08 | 天津嘉诚信科技有限公司 | Damping spring shock absorber |
| CN206457114U (en) * | 2016-12-23 | 2017-09-01 | 徐向军 | A kind of power cable take-up and pay-off device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112010206A (en) * | 2020-08-26 | 2020-12-01 | 万全重工（常州）机械有限公司 | Bidirectional self-balancing chassis of overhead working truck |
| CN112010206B (en) * | 2020-08-26 | 2023-09-29 | 万全重工（常州）机械有限公司 | Bidirectional self-balancing chassis of overhead working truck |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180320 |