CN113697602B - Brake device for transformer wire coil - Google Patents
Brake device for transformer wire coil Download PDFInfo
- Publication number
- CN113697602B CN113697602B CN202110994008.4A CN202110994008A CN113697602B CN 113697602 B CN113697602 B CN 113697602B CN 202110994008 A CN202110994008 A CN 202110994008A CN 113697602 B CN113697602 B CN 113697602B
- Authority
- CN
- China
- Prior art keywords
- brake
- wire coil
- wheel set
- lever
- spring
- 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.)
- Active
Links
Images
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
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/02—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating delivery of material from supply package
- B65H59/04—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating delivery of material from supply package by devices acting on package or support
-
- 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
- B65H2701/36—Wires
Landscapes
- Braking Arrangements (AREA)
Abstract
The invention relates to a brake device for a transformer wire coil, which comprises a base, wherein a wire coil base is arranged at one end of the base, a central shaft of the wire coil is vertically and fixedly arranged on the surface of the wire coil base, and a brake is arranged on the central shaft between the wire coil and the wire coil base; the other end of the base is provided with a lever wheel set bracket, the lever wheel set is assembled on the lever wheel set bracket, and the lever wheel set can rotate on the lever wheel set bracket; a second brake cable is connected between the lever wheel set and the brake; the brake friction force and the brake line stroke are in a linear relation, the brake line stroke and the brake force can be preset and adjusted by changing the elastic coefficient of a spring in a lever wheel set or a brake, the brake force can be controlled and uniformly changed, so that the transformer coil can obtain continuous and uniform tensioning force during winding, and the winding quality of the coil is improved.
Description
Technical Field
The invention relates to a brake device for a transformer wire coil, and belongs to the field of dry-type transformers.
Background
The winding quality of the coil of the dry type transformer has great influence on performance parameters of the transformer, and whether the wire has enough tension in the winding process is an important link for ensuring the winding quality, so the structure of the brake part is very important.
In the current structure about the brake, the aim of stopping the rotation to the aim of stopping the motion of an object is taken, namely, the maximum force of the brake is achieved by braking once the brake is released, the whole structure is released completely, a gradual process is not provided, the rotation resistance of a wire coil cannot be controlled, the tension force cannot be controlled, and the non-uniform winding is directly caused. Some improvements related to this aspect are that a lever is adopted, but when the long arm and the short arm of the lever rotate around the fulcrum, the motion trail of the stress point of the lever is an arc around the fulcrum, so firstly, the force application directions of the long arm and the short arm are not on the same straight line, secondly, the lever rotates, the direction of the force is unchanged, the length of the resistance arm changes, the uneven stretching of the brake cable causes the uneven change of the brake force, and the rotation of the control disc cannot be finely controlled.
Disclosure of Invention
The invention provides a brake device for a transformer wire coil, which can control the magnitude of brake force, so that a transformer coil obtains continuous and uniform tension force during winding, and the winding quality of the coil is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a brake device for a transformer wire coil comprises a base, wherein a wire coil base is installed at one end of the base, a central shaft of the wire coil is vertically and fixedly arranged on the surface of the wire coil base, and a brake is installed on the central shaft between the wire coil and the wire coil base;
the other end of the base is provided with a lever wheel set bracket, the lever wheel set is assembled on the lever wheel set bracket, and the lever wheel set can rotate on the lever wheel set bracket;
a second brake cable is connected between the lever wheel set and the brake;
as a further preferable mode of the invention, the lever wheel set comprises a driving wheel and a driven wheel, the driven wheel and the driving wheel are coaxially fixed, the diameter of the driven wheel is smaller than that of the driving wheel, and the driven wheel and the driving wheel do not rotate relatively;
a rotating shaft is fixed on the lever wheel set bracket, and the center of the actuating wheel is sleeved on the rotating shaft;
as a further preferable aspect of the present invention, a first brake cable is wound on the application wheel, a second brake cable is wound on the driven wheel, and an extension end of the second brake cable is connected with the brake;
as a further preferred aspect of the present invention, the brake includes a main brake component, a spring and a brake pad, the main brake component is a rectangular hollow structure, the brake pad is installed in the main brake component, the rectangular hollow structure of the main brake component is divided into two parts by the brake pad, one part is internally connected with the spring, that is, one end of the spring is connected with the brake pad, and the other end of the spring is connected with the main brake component;
as a further preferred option of the invention, the brake main part is sleeved on a central shaft between the wire coil and the wire coil base, the brake pad and the spring are positioned at the same side of the central shaft, and the other part of the rectangular hollow structure is close to the lever wheel set;
the extending end of the second brake cable is connected with the other part of the brake main part;
as a further optimization of the invention, the brake device also comprises a brake bracket which is clamped on the frame of the brake main part, and the bottom of the brake bracket is fixed on the surface of the wire coil base;
as a further preferable mode of the present invention, the brake main part and the brake bracket can move relatively, and the moving direction of the brake main part is consistent with the stretching direction of the second brake cable;
in a further preferred embodiment of the present invention, a tangent point between the driven wheel and the second brake cable is on a straight line in a brake moving direction, that is, a straight line in the brake main member moving direction coincides with a rotation plane of the driven wheel winding.
Through the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the brake device provided by the invention adopts the lever wheel set to realize the expansion of the force application direction of the brake cable, and the change of the stroke and the force of the brake cable can be met by setting the lever wheel set and the elastic coefficient of the spring in the brake;
2. the brake device provided by the invention can apply any resistance to the rotation of the wire disc by controlling the brake wire within a certain range;
3. the brake device provided by the invention adopts the lever wheel set to control the rotation resistance of the wire coil, so that the length of the force arm cannot be changed along with the rotation of the lever wheel set, the brake cable moves uniformly, the brake force changes uniformly, the purpose of stably tensioning the wound wire of the transformer is realized, and the winding quality of the coil is improved;
4. the brake device provided by the invention also comprises a spring which is matched with the lever wheel set, so that the controllable continuous adjustment of the braking force is easier and more convenient.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of a preferred embodiment of the present invention from the perspective of a lever wheel set;
FIG. 2 is a schematic view of the preferred embodiment of the present invention from a spool perspective;
fig. 3 is a schematic view of a brake structure in a preferred embodiment of the invention.
In the figure: the brake device comprises a base 1, a lever wheel set support 11, a wire coil base 12, a brake support 13, a lever wheel set 2, an actuating wheel 21, a driven wheel 22, a brake 3, a brake master 31, a spring 32, a brake pad 33, a first brake cable 4, a second brake cable 41 and a wire coil 5.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present application, it is to be understood that the terms "left side", "right side", "upper part", "lower part", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and that "first", "second", etc., do not represent an important degree of the component parts, and thus are not to be construed as limiting the present invention. The specific dimensions used in the present example are only for illustrating the technical solution and do not limit the protection scope of the present invention.
In the prior art, the brake tensioning wire is not a gradual process, so that whether enough tensioning force exists in the winding process can not be ensured, and the winding quality of the coil is influenced.
Based on this, this application provides a brake equipment, its with control transformer wire winding in drum rotational resistance in order to reach the purpose of taut transformer coiling wire, the brake dynamics is controllable and continuous, and the tensioning force continuously satisfies the steady coiling of wire.
Specifically, as shown in fig. 1-2, the whole device comprises a base 1, wherein a wire coil base 12 is installed at one end of the base, a central shaft of a wire coil 5 is vertically and fixedly arranged on the surface of the wire coil base, and a brake 3 is installed on the central shaft between the wire coil and the wire coil base; the other end of the base is provided with a lever wheel set bracket 11, the lever wheel set 2 is assembled on the bracket, and the lever wheel set can rotate on the lever wheel set bracket; a second brake cable 41 is connected between the lever wheel set and the brake.
In the application, a lever wheel set is adopted for controlling the rotation resistance of a coil in a transformer winding, the lever wheel set comprises a driving wheel 21 and a driven wheel 22, the driven wheel and the driving wheel are coaxially fixed, the diameter of the driven wheel is smaller than that of the driving wheel, and the driven wheel and the driving wheel do not rotate relatively; a rotating shaft is fixed on the lever wheel set bracket, the center of the actuating wheel is sleeved on the rotating shaft, and the flange of the actuating wheel is parallel to the base in order to ensure the uniformity of braking force in the operation process; the first brake cable 4 is wound on the actuating wheel, the second brake cable is wound on the driven wheel, the extending end of the second brake cable is connected with the brake, the change of the stroke and the tensioning force from the first brake cable to the second brake cable is realized, and the friction force borne by the central shaft of the wire disc is conveniently and easily controlled.
In the prior art, a lever is commonly used, but when the lever is used, the force application direction is difficult to be always on the same straight line due to the rotation of the lever; because the brake force application direction is relatively fixed, the rotation of the lever can cause the change of the length of the force arm, and the brake force cannot be uniformly changed due to the uniform stretching of the brake cable. When the lever wheel set is used, the spatial position of the inlet and outlet points of the brake cable in the lever wheel is fixed, so that the problem of the force application direction to the brake can be well solved; the power arm and the resistance arm are respectively the radiuses of the actuating wheel and the driven wheel, the length of the force arm cannot be changed along with the rotation of the lever wheel, so that the brake cable uniformly moves, and the brake force correspondingly and uniformly changes.
In this application, as shown in fig. 3, the brake includes brake main part 31, spring 32 and brake pad 33, brake main part 31 is rectangle hollow structure, installs the brake pad in the brake main part, and the brake pad divides the rectangle hollow structure of brake main part into two parts, and one of them part is the internal spring that connects, and the one end of spring is connected with the brake pad, and its other end is connected with the brake main part, as for the compression state of spring, need be decided according to specific situations, it wants to express here that, the original length of spring will be greater than or equal to the spring and normally places the maximum length that allows in the brake main part. The spring with longer original length is preferably used in the brake, so that the possible movement distance of the second brake cable is limited within the telescopic range of the spring, when the first brake cable is stressed, the spring is always in a compressed state, the contracted length of the spring is related to the tightening length of the second brake cable, namely, the rotation of the wire coil is always influenced by the brake, and the influence degree of the rotation of the wire coil is related to the tightening length of the second brake cable. The brake main part is sleeved on a central shaft between the wire coil and the wire coil base, the brake pad and the spring are positioned on the same side of the central shaft, and the other part of the rectangular hollow structure is close to the lever wheel set; the extending end of the second brake cable is directly connected with the other part of the brake main part; and the driven wheel and the braking part are linked through a second brake cable.
In order to fix the brake, the brake bracket 13 is further included and is clamped on the frame of the brake main part, and the bottom of the brake bracket is fixed on the surface of the wire coil base. The brake main part and the brake support can move relatively, and the moving direction of the brake main part is consistent with the stretching direction of the second brake cable.
During the experiment, match the adjustment to each part, it needs to be noted that, follow the straight line that driving wheel and second brake line phase point formed at the brake moving direction, the straight line that the moving direction of brake main part formed coincides with the plane of rotation of following the driving wheel wire winding promptly, guarantees the unanimity of second brake line straight part for the braking direction, can exert the outside application of force of first brake line in arbitrary direction in the plane of rotation of wheel wire winding in theory, has improved this brake equipment's use flexibility ratio.
In the brake device explained above, the brake friction force and the brake line stroke have a linear relationship, and the preset adjustment of the brake line stroke and the brake braking force can be realized by changing the elastic coefficient of a spring in a lever wheel set or a brake; an explanation is also made as to how the changes are, first: the radius of the actuating wheel and the driven wheel is changed, if the radius of the initial actuating wheel is selected to be 10cm, and the radius of the driven wheel is selected to be 5cm, the moment arm is doubled, if the radius of the initial actuating wheel is selected to be 20cm, and if the radius of the driven wheel is selected to be 5cm, the moment arm is quadrupled, but if the radius of the actuating wheel and the radius of the driven wheel are both selected to be 10cm, the lever effect is not achieved.
Secondly, the method comprises the following steps: since the spring force f = kx, where k denotes the spring constant of the spring, the spring constant of different springs varies, resulting in a change in the tensile force.
This application is at last specifically operated the brake equipment who provides, and the transformer is at the coiling in-process, and when first brake line did not receive external force, the second brake line is in the state of relaxing equally, and the brake does not receive external force this moment, and the spring is in the biggest extension state that allows, and the axis of drum is in the brake main part the most edge, and this most edge is close to the lever wheelset, and the spring is close to 0 to the brake pad effort, and the drum axis rotates the resistance that receives also infinitely nearly is 0.
When the transformer is in the winding process and a wound wire needs to be tightened, the first brake wire is released by the rotation of the actuating wheel, the second brake wire is tightened by the driven wheel, the brake moves towards the direction of the lever wheel set, the spring in the brake main part is continuously compressed at the moment, the spring increases acting force on the middle shaft of the wire coil through the brake pad, the friction force between the middle shaft and the brake pad is gradually increased, and when the tightening force and the friction force reach balance, the wire coil can be rotated only by the aid of the wound wire of the transformer through larger pulling force, so that the purpose of tensioning the wire is achieved.
When the winding wire is over-tight and needs to be loosened in the winding process of the transformer, the first brake wire is properly loosened, the stress balance is changed, the actuating wheel rotates in the direction of tightening the first brake wire, the driven wheel releases the second brake wire, the tension of the second brake wire applied to the brake is reduced, the compression force applied to the spring is reduced and gradually rebounds, the length is increased, the brake moves in the opposite direction to the lever wheel set, and finally a new balance is achieved.
In summary, the brake device that this application provided, simple structure, reliable and stable can rotate at the certain extent through the first brake line of control and apply arbitrary resistance to the drum, no matter at the manual wire winding of dry-type transformer or automatic wire winding in-process, all can provide fine solution for effective control drum rotation resistance.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of "and/or" as used herein is intended to include both the individual components or both.
The term "connected" as used herein may mean either a direct connection between components or an indirect connection between components via other components.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. The utility model provides a brake equipment for transformer drum which characterized in that: the brake device comprises a base (1), wherein a wire coil base (12) is arranged at one end of the base (1), a middle shaft of a wire coil (5) is vertically and fixedly arranged on the surface of the wire coil base (12), and a brake (3) is arranged on the middle shaft between the wire coil (5) and the wire coil base (12);
the other end of the base (1) is provided with a lever wheel set bracket (11), the lever wheel set (2) is assembled on the lever wheel set bracket (11), and the lever wheel set (2) can rotate on the lever wheel set bracket (11);
a second brake cable (41) is connected between the lever wheel set (2) and the brake (3);
the lever wheel set (2) comprises a driving wheel (21) and a driven wheel (22), the driven wheel (22) and the driving wheel (21) are coaxially fixed, the diameter of the driven wheel (22) is smaller than that of the driving wheel (21), and the driven wheel (22) and the driving wheel (21) do not rotate relatively;
a rotating shaft is fixed on the lever wheel set bracket (11), and the center of the actuating wheel (21) is sleeved on the rotating shaft;
a first brake cable (4) is wound on the actuating wheel (21), a second brake cable (41) is wound on the driven wheel (22), and the extending end of the second brake cable (41) is connected with the brake (3);
the brake (3) comprises a brake main part (31), a spring (32) and a brake pad (33), wherein the brake main part (31) is of a rectangular hollow structure, the brake pad (33) is arranged in the brake main part (31), the rectangular hollow structure of the brake main part (31) is divided into two parts by the brake pad (33), the spring (32) is connected in one part, namely one end of the spring (32) is connected with the brake pad (33), and the other end of the spring is connected with the brake main part (31);
the expansion of the force application direction of the brake cable is realized by adopting the lever wheel set, and the change of the stroke and the force of the brake cable can be met by setting the lever wheel set and the elastic coefficient of a spring in the brake;
in the winding process of the transformer, when the first brake cable is not subjected to external force, the second brake cable is also in a relaxed state, the brake is not subjected to the external force at the moment, the spring is in an allowed maximum extension state, the center shaft of the wire coil is positioned at the outermost edge in the brake main part, the outermost edge is close to the lever wheel set, the acting force of the spring on the brake pad is close to 0, and the resistance force on the rotation of the center shaft of the wire coil is also infinitely close to 0;
when the winding lead needs to be tightened in the winding process of the transformer, the first brake cable is tightened, the actuating wheel rotates to release the first brake cable, the second brake cable is tightened by the driven wheel, the brake moves towards the direction of the lever wheel set, at the moment, the spring in the brake main part is continuously compressed, the spring increases acting force on the middle shaft of the wire coil through the brake pad, the friction force between the middle shaft and the brake pad is gradually increased, and when the tightening force and the friction force are balanced, the winding lead of the transformer can rotate the wire coil by larger tension force, so that the purpose of tightening the lead is achieved;
when the winding wire is too tight and needs to be loosened in the winding process of the transformer, the first brake cable is properly loosened, the stress balance is changed, the actuating wheel rotates in the direction of tightening the first brake cable, the driven wheel releases the second brake cable, the tension of the second brake cable on the brake is reduced, the compression force on the spring is reduced and gradually rebounds, the length is increased, the brake moves in the opposite direction to the lever wheel set, and finally a new balance is achieved.
2. The brake device for the transformer wire coil as claimed in claim 1, wherein: the brake main part (31) is sleeved on a middle shaft between the wire coil (5) and the wire coil base (12), the brake pad (33) and the spring (32) are positioned on the same side of the middle shaft, and the other part of the rectangular hollow structure is close to the lever wheel set (2);
the extended end of the second brake cable (41) is connected to the other part of the brake main member (31).
3. The brake device for the transformer wire coil as claimed in claim 2, wherein: the brake device is characterized by further comprising a brake support (13) which is clamped on a frame of the brake main part (31), and the bottom of the brake support (13) is fixed on the surface of the wire coil base (12).
4. The brake device for the transformer wire coil as claimed in claim 3, wherein: the brake main part (31) and the brake bracket (13) can move relatively, and the moving direction of the brake main part (31) is consistent with the stretching direction of the second brake cable (41).
5. The brake device for the transformer wire coil as claimed in claim 4, wherein: the tangent point of the driven wheel (22) and the second brake cable (41) is on a straight line formed in the moving direction of the brake (3), namely the straight line formed in the moving direction of the brake main part (31) is superposed with the rotating plane of the winding of the driven wheel (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110994008.4A CN113697602B (en) | 2021-08-27 | 2021-08-27 | Brake device for transformer wire coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110994008.4A CN113697602B (en) | 2021-08-27 | 2021-08-27 | Brake device for transformer wire coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113697602A CN113697602A (en) | 2021-11-26 |
| CN113697602B true CN113697602B (en) | 2023-01-03 |
Family
ID=78655834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110994008.4A Active CN113697602B (en) | 2021-08-27 | 2021-08-27 | Brake device for transformer wire coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113697602B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005019622B3 (en) * | 2005-04-26 | 2006-12-07 | Alexander Binzel Schweisstechnik Gmbh & Co. Kg | Wire coil brakes for arc welding torches and small coil and inert gas welding torches with brake device |
| CN203199801U (en) * | 2013-04-02 | 2013-09-18 | 江阴祥瑞不锈钢精线有限公司 | Damping device for paying off |
| CN108189900A (en) * | 2016-12-08 | 2018-06-22 | 解文武 | From parking brake system and learn to walk from parking |
| CN208069936U (en) * | 2018-02-09 | 2018-11-09 | 东莞市球德五金制品有限公司 | A kind of folding scooter of strap brake |
| CN208265509U (en) * | 2018-04-24 | 2018-12-21 | 太和县富华绳网有限公司 | A kind of twisting machine tension-adjusting gear |
| CN208883163U (en) * | 2018-08-10 | 2019-05-21 | 广东亚太新材料科技有限公司 | A kind of actinobacillus device |
| CN212982064U (en) * | 2020-08-17 | 2021-04-16 | 江阴市春瑞金属制品有限公司 | Reducing-proof constant-tension pay-off device for annealing stainless steel fine wires |
-
2021
- 2021-08-27 CN CN202110994008.4A patent/CN113697602B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113697602A (en) | 2021-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6805314B2 (en) | Tool support | |
| CN113697602B (en) | Brake device for transformer wire coil | |
| EP2619120B1 (en) | Self-compensating filament tension control device with friction band braking | |
| US1946313A (en) | Tensioning device | |
| CN113697601B (en) | Braking method for transformer wire coil | |
| JP2006347121A (en) | Belt core wire supply apparatus | |
| JP2995188B2 (en) | Taping device for coil | |
| US8628037B2 (en) | Self-compensating filament tension control device with friction braking | |
| US2562990A (en) | Dereeling tension control | |
| JPH07106178A (en) | Method and apparatus for control of wire tension in winding apparatus | |
| US4003290A (en) | Strand carrier for a strand fabricating machine | |
| WO2023103473A1 (en) | Method for mounting double-layer linkage closed-loop rope system | |
| CN111671617B (en) | Rope-driven exoskeleton mechanical arm length adjusting connecting rod capable of maintaining constant rope tension | |
| SU635526A2 (en) | Tenshioning device to machines for winding electric coils | |
| CN220886454U (en) | Paying-off device | |
| US8500056B1 (en) | Self-compensating filament tension control device with eddy current braking | |
| US3486713A (en) | Means for automatically controlling the tension of a continuously advancing element | |
| CN220658785U (en) | Beyond-end pay-off device | |
| CN220667150U (en) | Mast guiding mechanism | |
| US2761630A (en) | Coil winding apparatus with integral tension means | |
| CN217676030U (en) | Rope pulling and shifting device | |
| US6648263B2 (en) | Dynamic tensioning for wire-winding device | |
| CN206359046U (en) | A kind of magnetic tension actinobacillus device for cable strand winder | |
| RU2162434C1 (en) | Tension regulator for flexible member wound off drum | |
| TWM345071U (en) | Feeding device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |