CN112490824A - Connector cover plate clamping and moving mechanism - Google Patents
Connector cover plate clamping and moving mechanism Download PDFInfo
- Publication number
- CN112490824A CN112490824A CN202011285253.XA CN202011285253A CN112490824A CN 112490824 A CN112490824 A CN 112490824A CN 202011285253 A CN202011285253 A CN 202011285253A CN 112490824 A CN112490824 A CN 112490824A
- Authority
- CN
- China
- Prior art keywords
- plate
- fixedly connected
- air cylinder
- moving mechanism
- connector cover
- 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- Withdrawn
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention belongs to the technical field of connector cover plate clamping equipment, and particularly relates to a connector cover plate clamping and moving mechanism which comprises a supporting mechanism, wherein the supporting mechanism comprises a supporting column and a top plate fixed on the top surface of the supporting column; after processing is accomplished, first cylinder promotes the slip table and slides along the guide rail, and slip table cylinder on the mounting panel promotes the backup pad and moves down, and the second cylinder drives the clamping jaw and loosens the apron, and the slide drives the ejector pin and slides down under the effect of spring, pushes away from the apron, and simultaneously, paster vibrating motor drives slide and ejector pin and vibrates for the apron is better breaks away from with the locating pin, effectively prevents the phenomenon that the screens appears in the apron, makes the apron take off the material comparatively smooth and easy.
Description
Technical Field
The invention belongs to the technical field of connector cover plate clamping equipment, and particularly relates to a connector cover plate clamping and moving mechanism.
Background
At present connector flexible flat cable, need insert the every heart yearn of flexible flat cable during the corresponding U type opening that the plastic made the slice groove, the equipment of connector is accomplished in whole slice groove cover to the rethread apron, present apron volume is less, adopt artifical mode centre gripping transport, speed is slower, and drop easily during the transport, influence subsequent processing, therefore, when production, need use more centre gripping equipment to carry out the centre gripping to the apron, then remove to the processing equipment, the processing is accomplished the back, remove the apron again to conveying equipment on, effectively guarantee production efficiency.
Chinese patent publication No. CN103746256A discloses a connector cover plate clamping and moving mechanism, which has a simple structure, stable clamping and moving, fast moving speed and high efficiency, but when the positioning pin is inserted and positioned, the gap between the positioning pin and the positioning hole is small, so that the cover plate is easy to fall off and unsmooth when the cover plate is loosened, and the stacking is easy to be caused when the device is clamped again.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a connector cover plate clamping and moving mechanism which has the characteristic of smooth material removal.
In order to achieve the purpose, the invention provides the following technical scheme: a connector cover plate clamping and moving mechanism comprises a supporting mechanism, wherein the supporting mechanism comprises a supporting column and a top plate fixed on the top surface of the supporting column, a first air cylinder is fixedly connected to one side of the top surface of the top plate, the first air cylinder is in transmission connection with an external air source, a guide rail is fixedly connected to one side, away from the first air cylinder, of the top surface of the top plate, a sliding table is connected to the guide rail in a sliding manner, the output end of the first air cylinder is fixedly connected with the sliding table, a mounting plate is fixedly connected to one side, away from the first air cylinder, of the top surface of the sliding table, a sliding table air cylinder is fixedly connected to one side, away from the first air cylinder, of the mounting plate, the sliding table air cylinder is in transmission connection with the external air source, a clamping mechanism is installed at the output end of the sliding table air cylinder, the second cylinder is in transmission connection with an external air source, the output end of the second cylinder is fixedly connected with a clamping jaw, the bottom surfaces of the two bosses are fixedly connected with positioning pins, the two bosses are respectively provided with four guide holes, the guide holes are respectively and fixedly connected with a buffer ring sleeve, the two sides of the support plate are respectively provided with a longitudinal ejection mechanism, the longitudinal ejection mechanism comprises a fixed plate and a sliding plate positioned below the fixed plate, the fixed plate is fixedly connected with the support plate, a spring is fixedly connected between the sliding plate and the fixed plate, the bottom surface of the sliding plate is fixedly connected with a patch vibration motor, the patch vibration motor is electrically connected with an external power source, the bottom surface of the sliding plate is fixedly connected with four ejector rods, the four ejector rods are respectively inserted on the inner wall of the buffer ring sleeve in a sliding manner, the limiting plate is located above the boss, and a lateral ejection mechanism is installed at one end, close to the clamping mechanism, of the bottom surface of the top plate.
Preferably, the lateral ejection mechanism comprises a third cylinder and a push plate fixed at the output end of the third cylinder, and the third cylinder is in transmission connection with an external air source.
Preferably, the bottom surface of the supporting column is fixedly connected with a bottom plate.
Preferably, a reinforcing plate is fixedly connected between the sliding table and the mounting plate.
Preferably, the bottom end of the ejector rod is fixedly connected with a buffer block.
Preferably, the buffer block and the buffer ring sleeve are made of rubber.
Preferably, the top surface of the third cylinder is fixedly connected with a connecting frame, and the connecting frame is fixedly connected with the top plate.
Preferably, the push plate is made of plastic.
Preferably, the diameter of the limiting plate is larger than that of the guide hole.
Preferably, the limiting plate is made of stainless steel.
Compared with the prior art, the invention has the beneficial effects that:
1. when the cover plate is used, the first air cylinder pushes the sliding table to slide forwards along the guide rail, the sliding table air cylinder on the mounting plate pushes the supporting plate to move downwards, the positioning pins on the two bosses are inserted into the positioning holes of the cover plate, meanwhile, the ejector rod moves upwards, the second air cylinder drives the clamping jaw to clamp the cover plate, then, the sliding table air cylinder on the mounting plate pushes the supporting plate to move upwards, the first air cylinder pushes the sliding table to slide backwards along the guide rail, after the processing is completed, the first air cylinder pushes the sliding table to slide forwards along the guide rail, the sliding table air cylinder on the mounting plate pushes the supporting plate to move downwards, the second air cylinder drives the clamping jaw to loosen the cover plate, the sliding plate drives the ejector rod to slide downwards under the action of the spring, the cover plate is pushed away from the cover plate, meanwhile, the cover plate.
2. When the ejector pin takes place to vibrate, the buffering ring cover cushions it, prevents to vibrate the conduction to the boss on, when the apron breaks away from, the third cylinder promotes the push pedal and moves forward, promotes the apron, takes off the material more smoothly, and the ejector pin is when promoting downwards, and the buffer block can not lead to the fact the damage to the apron surface with the apron contact, and the diameter of limiting plate is greater than the diameter of guiding hole, carries on spacingly to the limiting plate by the boss, prevents that the limiting plate from leading to the fact pressure to buffering ring cover.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a longitudinal ejection mechanism according to the present invention;
FIG. 3 is a schematic view of the location distribution of pilot holes in the present invention;
fig. 4 is a schematic view of the structure of the lift pin in the present invention.
In the figure: 1. a support mechanism; 11. a support pillar; 111. a base plate; 12. a top plate; 13. a guide rail; 14. a first cylinder; 15. a sliding table; 16. mounting a plate; 161. a reinforcing plate; 17. a sliding table cylinder; 2. a clamping mechanism; 201. a guide hole; 221. a buffer ring sleeve; 21. a support plate; 22. a boss; 23. a second cylinder; 24. a clamping jaw; 25. positioning pins; 3. a longitudinal ejection mechanism; 31. a fixing plate; 32. a slide plate; 33. a spring; 34. a top rod; 341. a limiting plate; 342. a buffer block; 35. a patch vibration motor; 4. a lateral ejection mechanism; 41. a third cylinder; 42. pushing the plate; 43. and a connecting frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides the following technical solutions: a connector cover plate clamping and moving mechanism comprises a supporting mechanism 1, wherein the supporting mechanism 1 comprises a supporting column 11 and a top plate 12 fixed on the top surface of the supporting column, one side of the top surface of the top plate 12 is fixedly connected with a first air cylinder 14, the first air cylinder 14 is in transmission connection with an external air source, one side, far away from the first air cylinder 14, of the top surface of the top plate 12 is fixedly connected with a guide rail 13, the guide rail 13 is in sliding connection with a sliding table 15, the output end of the first air cylinder 14 is fixedly connected with the sliding table 15, one side, far away from the first air cylinder 14, of the top surface of the sliding table 15 is fixedly connected with a mounting plate 16, one side, far away from the first air cylinder 14, of the mounting plate 16 is fixedly connected with a sliding table air cylinder 17, the sliding table air cylinder 17 is in transmission connection with the external air source, the output end of the sliding, the second cylinder 23 is in transmission connection with an external air source, the output end of the second cylinder 23 is fixedly connected with a clamping jaw 24, the bottom surfaces of the two bosses 22 are fixedly connected with a positioning pin 25, the two bosses 22 are respectively provided with four guide holes 201, the interior of each guide hole 201 is fixedly connected with a buffer ring sleeve 221, the two sides of the support plate 21 are respectively provided with a longitudinal ejection mechanism 3, each longitudinal ejection mechanism 3 comprises a fixed plate 31 and a sliding plate 32 positioned below the fixed plate 31, the fixed plate 31 is fixedly connected with the support plate 21, a spring 33 is fixedly connected between the sliding plate 32 and the fixed plate 31, the bottom surface of the sliding plate 32 is fixedly connected with a patch vibration motor 35, the patch vibration motor 35 is electrically connected with an external power supply, the bottom surface of the sliding plate 32 is fixedly connected with four ejector rods 34, the four ejector rods 34 are respectively inserted into the inner wall of the, the bottom surface of the top plate 12 is provided with a side ejection mechanism 4 at one end close to the clamping mechanism 2.
In this embodiment: when the device is used, the first air cylinder 14 pushes the sliding table 15 to slide forwards along the guide rail 13, the sliding table air cylinder 17 on the mounting plate 16 pushes the support plate 21 to move downwards, the positioning pins 25 on the two bosses 22 are inserted into the cover plate positioning holes, meanwhile, the ejector rod 34 moves upwards along the inner wall of the buffer ring sleeve 221, the ejector rod 34 pushes the sliding table 32 to move upwards and compresses the spring 33, the spring 33 compresses the stored force, the second air cylinder 23 drives the clamping jaw 24 to clamp the cover plate, then, the sliding table air cylinder 17 on the mounting plate 16 pushes the support plate 21 to move upwards, the first air cylinder 14 pushes the sliding table 15 to slide backwards along the guide rail 13, after the machining is completed, the first air cylinder 14 pushes the sliding table 15 to slide forwards along the guide rail 13, the sliding table air cylinder 17 on the mounting plate 16 pushes the support plate 21 to move downwards, the second air cylinder 23 drives the clamping jaw 24 to loosen the cover plate, the, push away from the apron, simultaneously, paster vibrating motor 35 drives slide 32 and ejector pin 34 and vibrates for the apron is better breaks away from with locating pin 25, effectively prevents the phenomenon of screens from appearing in the apron, and when ejector pin 34 took place to vibrate, cushion ring cover 221 cushioned it, prevents to vibrate the conduction to boss 22 on, and when the apron breaks away from, third cylinder 41 promoted push pedal 42 and moves forward, promotes the apron, takes off the material more smoothly.
Specifically, the lateral ejection mechanism 4 comprises a third cylinder 41 and a push plate 42 fixed at the output end of the third cylinder, and the third cylinder 41 is in transmission connection with an external air source; when the cover plate is separated, the third cylinder 41 pushes the push plate 42 to move forwards to push the cover plate, so that the material separation is smoother.
Specifically, the bottom surface of the supporting column 11 is fixedly connected with a bottom plate 111; the support post 11 is fixed to the work surface by the base plate 111.
Specifically, a reinforcing plate 161 is fixedly connected between the sliding table 15 and the mounting plate 16; the reinforcing plate 161 assists in supporting the slide table 15 and the mounting plate 16, and prevents the mounting plate 16 from being deformed.
Specifically, the bottom end of the ejector rod 34 is fixedly connected with a buffer block 342; when the push rod 34 is pushed downwards, the buffer block 342 contacts with the cover plate, and the surface of the cover plate is not damaged.
Specifically, the buffer block 342 and the buffer ring sleeve 221 are made of rubber; the buffer block 342 and the buffer ring sleeve 221 made of rubber have good buffer effect.
Specifically, the top surface of the third cylinder 41 is fixedly connected with a connecting frame 43, and the connecting frame 43 is fixedly connected with the top plate 12; the third cylinder 41 and the top plate 12 are connected by a connecting frame 43.
Specifically, the push plate 42 is made of plastic; the push plate 42 made of plastic material is not corroded and does not pollute the cover plate.
Specifically, the diameter of the limiting plate 341 is larger than that of the guide hole 201; the boss 22 limits the position of the position-limiting plate 341 to prevent the position-limiting plate 341 from pressing the cushion collar 221.
Specifically, the limiting plate 341 is made of stainless steel; the rust is not easy to occur, and the iron rust slag is prevented from falling into the buffer ring sleeve 221 to cause the unsmooth sliding of the push rod 34.
The working principle and the using process of the invention are as follows: when the device is used, the first air cylinder 14 pushes the sliding table 15 to slide forwards along the guide rail 13, the sliding table air cylinder 17 (model STMS10) on the mounting plate 16 pushes the support plate 21 to move downwards, the positioning pins 25 on the two bosses 22 are inserted into the cover plate positioning holes, meanwhile, the ejector rod 34 moves upwards along the inner wall of the buffer ring sleeve 221, the ejector rod 34 pushes the sliding plate 32 to move upwards and compress the spring 33, the spring 33 compresses the stored force, the second air cylinder 23 (model TN20X40) drives the clamping jaw 24 to clamp the cover plate, then, the sliding table air cylinder 17 on the mounting plate 16 pushes the support plate 21 to move upwards, the first air cylinder 14 (model TN20X40) pushes the sliding table 15 to slide backwards along the guide rail 13, after machining is completed, the first air cylinder 14 pushes the sliding table 15 to slide forwards along the guide rail 13, the sliding table air cylinder 17 on the mounting plate 16 pushes the support plate 21 to move downwards, the second air cylinder, the sliding plate 32 drives the ejector rod 34 to slide downwards under the action of the spring 33 to push away the cover plate, meanwhile, the patch vibration motor 35 (model DLDJ-1027BPDJ-001) drives the sliding plate 32 and the ejector rod 34 to vibrate, so that the cover plate is better separated from the positioning pin 25, the phenomenon of clamping of the cover plate is effectively prevented, when the ejector rod 34 vibrates, the buffer ring sleeve 221 buffers the ejector rod to prevent the vibration from being transmitted to the boss 22, when the cover plate is separated, the third cylinder 41 (model TN20X40) pushes the push plate 42 to move forwards to push the cover plate and more smoothly remove materials, when the ejector rod 34 pushes downwards, the buffer block 342 is in contact with the cover plate and cannot damage the surface of the cover plate, the diameter of the limit plate 341 is larger than that of the guide hole 201, the limit plate 341 is limited by the boss 22 to prevent the limit plate 341 from causing pressure on the buffer ring sleeve 221, the reinforcing plate 161 assists in supporting the sliding table 15 and the mounting plate 16, the mounting plate 16 is prevented from being deformed, the push plate 42 made of plastic cannot be corroded, and the cover plate cannot be polluted.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a connector apron centre gripping moving mechanism which characterized in that: comprises a supporting mechanism (1), the supporting mechanism (1) comprises a supporting column (11) and a top plate (12) fixed on the top surface of the supporting column, a first air cylinder (14) is fixedly connected to one side of the top surface of the top plate (12), the first air cylinder (14) is in transmission connection with an external air source, a guide rail (13) is fixedly connected to one side of the first air cylinder (14) and is far away from the top surface of the top plate (12), a sliding table (15) is connected to the guide rail (13) in a sliding manner, the output end of the first air cylinder (14) is fixedly connected with the sliding table (15), a mounting plate (16) is fixedly connected to one side of the first air cylinder (14) and is far away from the mounting plate (16), the sliding table air cylinder (17) is in transmission connection with the external air source, a clamping mechanism (2) is installed at the output end of the sliding table air cylinder (17), the clamping mechanism (2) comprises a supporting plate (21) and bosses (22) which are integrally formed on two sides of the bottom end of the supporting plate, a second air cylinder (23) is fixedly connected to the middle position of the supporting plate (21), the second air cylinder (23) is in transmission connection with an external air source, clamping jaws (24) are fixedly connected to the output end of the second air cylinder (23), positioning pins (25) are fixedly connected to the bottom surface of the bosses (22), four guide holes (201) are formed in the bosses (22), buffer ring sleeves (221) are fixedly connected to the inner sides of the guide holes (201), longitudinal ejection mechanisms (3) are mounted on two sides of the supporting plate (21), each longitudinal ejection mechanism (3) comprises a fixing plate (31) and a sliding plate (32) located below the fixing plate, the fixing plate (31) is fixedly connected with the supporting plate (21), and springs (33) are fixedly connected between the sliding plates (32) and the fixing plate (31), the utility model discloses a buffer ring cover, including slide (32), the bottom surface fixedly connected with paster vibrating motor (35) of slide (32), paster vibrating motor (35) and external power source electric connection, four ejector pins (34), four of the bottom surface fixedly connected with of slide (32) ejector pin (34) slide respectively and peg graft and be in buffer ring cover (221) inner wall, coaxial fixedly connected with limiting plate (341) on ejector pin (34), limiting plate (341) are located the top of boss (22), the bottom surface of roof (12) is close to side direction ejection mechanism (4) are installed to the one end of fixture (2).
2. The connector cover clamping and moving mechanism of claim 1, wherein: the lateral ejection mechanism (4) comprises a third air cylinder (41) and a push plate (42) fixed at the output end of the third air cylinder, and the third air cylinder (41) is in transmission connection with an external air source.
3. The connector cover clamping and moving mechanism of claim 1, wherein: the bottom surface of the support column (11) is fixedly connected with a bottom plate (111).
4. The connector cover clamping and moving mechanism of claim 1, wherein: fixedly connected with reinforcing plate (161) between slip table (15) and mounting panel (16).
5. The connector cover clamping and moving mechanism of claim 1, wherein: the bottom end of the ejector rod (34) is fixedly connected with a buffer block (342).
6. The connector cover clamping and moving mechanism of claim 5, wherein: the buffer block (342) and the buffer ring sleeve (221) are made of rubber.
7. The connector cover clamping and moving mechanism of claim 2, wherein: the top surface of the third cylinder (41) is fixedly connected with a connecting frame (43), and the connecting frame (43) is fixedly connected with the top plate (12).
8. The connector cover clamping and moving mechanism of claim 2, wherein: the push plate (42) is made of plastic.
9. The connector cover clamping and moving mechanism of claim 1, wherein: the diameter of the limiting plate (341) is larger than that of the guide hole (201).
10. The connector cover clamping and moving mechanism of claim 1, wherein: the limiting plate (341) is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011285253.XA CN112490824A (en) | 2020-11-17 | 2020-11-17 | Connector cover plate clamping and moving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011285253.XA CN112490824A (en) | 2020-11-17 | 2020-11-17 | Connector cover plate clamping and moving mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112490824A true CN112490824A (en) | 2021-03-12 |
Family
ID=74930891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011285253.XA Withdrawn CN112490824A (en) | 2020-11-17 | 2020-11-17 | Connector cover plate clamping and moving mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112490824A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113370204A (en) * | 2021-04-29 | 2021-09-10 | 国网浙江省电力有限公司嘉兴供电公司 | Operating system and method based on vision and force control |
-
2020
- 2020-11-17 CN CN202011285253.XA patent/CN112490824A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113370204A (en) * | 2021-04-29 | 2021-09-10 | 国网浙江省电力有限公司嘉兴供电公司 | Operating system and method based on vision and force control |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212762012U (en) | Automatic assembling equipment for handle and nut of pressure cooker | |
| CN210882949U (en) | Full-automatic membrane peeling machine | |
| CN110434270B (en) | Rivet feeding pushing structure of full-automatic hollow rivet riveting machine | |
| CN112490824A (en) | Connector cover plate clamping and moving mechanism | |
| CN219098007U (en) | Battery shell loading attachment | |
| CN108556286B (en) | Automatic boxing equipment for penholders | |
| CN214444003U (en) | Automatic spot welding machine | |
| CN211495922U (en) | Automatic feeding device | |
| CN108134296B (en) | Automatic wire pressing and pulling device | |
| CN210360201U (en) | Clamp spring assembly machine | |
| CN215923416U (en) | Automatic production feeding equipment for knife box support | |
| CN108376896B (en) | Seamless shell molding machine | |
| CN112993375A (en) | Battery polar plate separator | |
| CN219053277U (en) | Laser welding copper cup pushing mechanism | |
| CN217571646U (en) | Copper pipe edge knurling machine with retrieve mechanism | |
| CN110757222A (en) | Pneumatic clamping device of blanking machine | |
| CN213053597U (en) | Bathroom hose steel bushing equipment mechanism | |
| CN219444376U (en) | Feeding device for processing air conditioner exhaust pipe | |
| CN219005805U (en) | Battery cell transplanting gripper clamping jaw mechanism | |
| CN221621229U (en) | Earpiece silk centre gripping feeding mechanism | |
| CN214933929U (en) | Electricity core snatchs mechanism | |
| CN217134441U (en) | Automatic groove mechanism of going into of utmost point crowd of battery piece | |
| CN217831667U (en) | High-efficient wire cutting machine | |
| CN213381266U (en) | Elastic sheet seat assembly machine assembly clamping jig | |
| CN218396415U (en) | Ultrasonic welding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210312 |
|
| WW01 | Invention patent application withdrawn after publication |