CN111422009A - Novel snowfield tire nail telescoping device - Google Patents
Novel snowfield tire nail telescoping device Download PDFInfo
- Publication number
- CN111422009A CN111422009A CN202010285603.6A CN202010285603A CN111422009A CN 111422009 A CN111422009 A CN 111422009A CN 202010285603 A CN202010285603 A CN 202010285603A CN 111422009 A CN111422009 A CN 111422009A
- Authority
- CN
- China
- Prior art keywords
- tire
- nail
- tyre
- antiskid
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/14—Anti-skid inserts, e.g. vulcanised into the tread band
- B60C11/16—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile
- B60C11/1606—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile retractable plug
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The invention relates to a novel snowfield tire nail telescopic device which comprises an anti-skid tire nail, a rubber sealing ring, a metal locking pin, a sheet spring, a spiral spring, a traction electromagnet A, a traction electromagnet B, a control circuit board, an annular power supply and a rubber outer tire. When the lower traction electromagnet B is not electrified, and the left traction electromagnet A and the right traction electromagnet A are electrified, the metal lock pin is opened, the antiskid tire nail stretches out under the tension of the spiral spring, when the antiskid tire nail reaches the position of the rubber sealing ring, the traction electromagnet A is powered off, the metal lock pin is pressed into a fixing groove of the antiskid tire nail, and at the moment, the tire becomes a snowfield tire with the antiskid tire nail; when the traction electromagnet A is electrified, the metal lock pin is opened, then the traction electromagnet B is electrified, the anti-skid tire nail is sucked back to the spring hole, then the traction electromagnet A is powered off, the metal lock pin is inserted into the fixing groove, the traction electromagnet B is powered off, and at the moment, the tire becomes a common tire. The problem that the vehicle can normally and safely run under the road condition that the ice and snow road surface and the common road surface are frequently switched in winter can be solved.
Description
Technical Field
The invention relates to the field of vehicle skid resistance, in particular to a novel snow tire nail telescopic device.
Background
In severe winter, in order to adapt to the ice and snow road surface, a plurality of vehicles can replace the anti-skid snow tire with the tire nail, thereby keeping the driving stability of the vehicles, improving the trafficability and safety of the ice and snow road surface and reducing the traffic accidents of the ice and snow road surface in winter to a great extent.
However, the use of such a snow tire with a tire pin is limited to only icy and snowy road surfaces: firstly, when the vehicle runs on a common road surface, the snow tire with the tire nails can greatly reduce the running speed of the vehicle, increase the oil consumption and reduce the braking force; secondly, the concentrated stress of the tire nail can damage the common road surface, and the service life of the road is reduced; finally, the snow tire with the tire nails runs on a road surface on a journey, so that the tire nails are easy to damage and fall off, and potential safety hazards are increased.
Therefore, when the road condition changes, the tires are usually required to be replaced, and for some vehicles running under the condition of frequently switching the road condition (for example, the vehicles go to and fro to the engineering vehicles in the urban area and the field suburban area in winter), the frequent replacement of the tires is not practical, and the vehicles are often selected to be stopped in winter, so that economic loss is caused.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a novel snow tire nail telescopic device, a driver can select the telescopic of a tire nail according to road conditions, so that the tire is switched between a snow tire with nails and a common winter tire to adapt to the road conditions of frequent switching between an ice-snow road surface and a common road surface, and the loss is reduced while the safety is ensured.
In order to realize the functions, the invention adopts the following scheme to realize the following functions:
a novel snowfield tire nail telescoping device comprises an anti-skid tire nail arranged in a rubber outer tire, a rubber sealing ring, a metal lock pin, a sheet spring, a spiral spring, a traction electromagnet A, a traction electromagnet B, a control circuit board and a power supply,
tyre nail holes are uniformly formed on the rubber outer tyre along the circumference; the antiskid tyre nail is arranged in the tyre nail hole and can slide along the radial direction of the rubber outer tyre; a counter bore is arranged at the tire nail hole on the surface of the tire, and the rubber sealing ring is arranged in the counter bore;
one end of the antiskid tyre nail is a prism, the other end of the antiskid tyre nail is a cone, a cylinder for connecting the prism and the cone is arranged between the prism and the cone, two identical fixing grooves are arranged on the prism, and a ring with a shape similar to that of the prism is arranged on the top view of each fixing groove; the rubber sealing ring enables the cone on the antiskid tyre nail to extend out, but the prism end cannot extend out;
the metal lock pin is composed of two identical flat plates, the shape of one end of each flat plate is matched with one half of the fixing groove, and the two flat plates are fixed in one fixing groove after being combined; the other end of the flat plate is provided with a cylindrical groove, and the sheet spring is arranged in the cylindrical groove and is in a compressed state; the metal lock pin can slide in the tire nail hole; the metal lock pin is used for controlling the extension and retraction of the antiskid tyre nail, when the metal lock pin is positioned in a fixing groove at the upper end of the antiskid tyre nail, the antiskid tyre nail is in a retraction state, and when the metal lock pin is positioned in a fixing groove at the lower end of the antiskid tyre nail, the antiskid tyre nail is in an extension state;
a spring hole is arranged below the tire nail hole, and the section size of the spring hole is smaller than that of the tire nail hole and can be used for limiting the antiskid tire nail; the spiral spring is positioned in the spring hole and is always in a compressed state, and is used for enabling the anti-skid tyre nail to extend out of the tyre nail hole;
the traction electromagnets A are positioned on two sides of the sheet spring and are used for attracting the sheet spring so as to control the opening of the metal lock sheath; correspondingly, a groove for the horizontal movement of the sheet spring is arranged on the rubber outer tire, and when the sheet spring moves to the farthest distance between the two flat plates, the anti-skid tire nail can move in the tire nail hole; when the two flat plates of the metal lock sheath are opened, the antiskid tyre nail is in an extending or retracting process, and when the antiskid tyre nail is completely extended or retracted, the metal lock sheath is combined;
the traction electromagnet B is positioned below the spiral spring and is used for attracting the antiskid tyre nail so as to control the contraction of the antiskid tyre nail;
the control circuit board is connected with all the traction electromagnets and controls the on-off of the traction electromagnets;
the power supply is annular, is positioned at the innermost side in the radial direction of the tire and is connected with the control circuit board;
tyre nail holes are uniformly formed on the rubber outer tyre along the circumference; the antiskid tyre nail is arranged in the tyre nail hole and can stretch out and draw back along the radial direction of the rubber outer tyre; the tyre surface tyre nail hole is provided with a counter bore, the rubber sealing ring is arranged in the counter bore, and after the rubber sealing ring is sealed, the cone on the anti-skid tyre nail can extend out, but the prismatic end can not extend out.
In the above technical solution, further, one end of the flat plate fitted with a half of the fixing groove is provided with a chamfer.
Further, the longitudinal width of the leaf spring is the same as the thickness of the flat plate.
Furthermore, the section of the rubber outer tire is a middle drum, and the two sides of the rubber outer tire are low; the antiskid tyre nails are uniformly distributed on two sides of the rubber outer tyre.
In the invention, when the traction electromagnet A is electrified, the metal lock pin is attracted to overcome the tension of the sheet spring and is separated from the fixing groove of the anti-skid tyre nail; when the traction electromagnet A is powered off, the metal lock pin can be pressed into the fixing groove of the anti-skid tyre nail by the tension of the sheet spring. When the traction electromagnet B is electrified, the anti-skid tyre nail is attracted, overcomes the tension of the spiral spring, retracts into the rubber outer tyre and is limited by the spring hole, and the metal lock pin is inserted into a fixing groove of the anti-skid tyre nail and is fixed in position; when the traction electromagnet B is powered off, the anti-skid tyre nail stretches out of the rubber outer tire under the tension of the spiral spring and is limited by the rubber sealing ring, and at the moment, the metal locking pin is inserted into the fixing groove of the anti-skid tyre nail and is fixed in position.
The working process of the device of the invention is as follows:
when a vehicle runs to a snowy road surface from a common ground, the traction electromagnet B below the vehicle is not electrified, the traction electromagnet A is electrified, the left metal lock pin and the right metal lock pin are sucked back, the antiskid tire nail extends out due to the tension of the spiral spring below the antiskid tire nail, when the antiskid tire nail reaches the limiting position of the rubber sealing ring, the traction electromagnet A is powered off, the metal lock pins are pressed into the fixing grooves of the antiskid tire nail under the tension of the left sheet spring and the right sheet spring, and the tire becomes a snowy tire with the antiskid tire nail;
when the vehicle runs to a common road surface from an ice and snow road surface, the left traction electromagnet A and the right traction electromagnet A are electrified, the metal lock pin is sucked back, then the traction electromagnet B below is electrified, the anti-skid tire nail is sucked back to the spring hole, then the traction electromagnet A is powered off, the metal lock pin is inserted into the fixing groove to be fixed, the traction electromagnet B is powered off, and at the moment, the tire becomes a common tire.
The invention has the beneficial effects that:
the device can realize the random switching of the common tire and the snow tire with the tire and the nail through manual simple operation, and can effectively solve the problem of normal and safe running of the vehicle under the road condition of frequent switching between the ice and snow road surface and the common road surface in winter. Moreover, the device is powered on only in the switching process of the two states, so that the use of electric quantity can be greatly saved.
Drawings
FIG. 1 is a perspective view of the anti-skid tire stud, metal locking pin and leaf spring of the present invention in the extended and retracted states of the tire stud;
FIG. 2 is a side cross-sectional view of the entire tire with the cleat retracted in accordance with the present invention and a partial enlarged view thereof;
FIG. 3 is a side cross-sectional view of the entire tire with the anti-skid studs extended and a partial enlarged view thereof in accordance with the present invention.
Description of reference numerals: 1-antiskid tyre nail; 2-rubber sealing ring; 3-rubber cover tyre; 4-a metal locking pin; 5-a leaf spring; 6-traction electromagnet A; 7-a coil spring; 8-a traction electromagnet B; 9-a control circuit board; 10-ring shaped cell.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
Fig. 1 is a three-dimensional structure view of the anti-skid tire nail 1, the metal lock pin 4 and the sheet spring 5 of the invention in the state that the tire nail extends and retracts; wherein the lower extreme of antiskid child nail 1 is for taking the hexagonal prism of two equidimension fixed slots, and the plan view of two fixed slots is a hexagonal ring, and the upper end of antiskid child nail 1 is a cylinder, and the cylinder upper end is equipped with the circular cone in order to increase the concentrated stress to ground to increase the grip, antiskid child nail 1 material can be attracted by magnet. The metal lock pin 4 is arranged on two sides of the anti-skid tyre nail 1 in a row, the metal lock pin 4 is composed of two identical flat plates, the shape of one end of each flat plate is matched with one half of the fixing groove, and the two flat plates are fixed in the fixing groove after being combined; the other end of the flat plate is provided with a cylindrical groove, and the sheet spring is arranged in the cylindrical groove and is in a compressed state and has thrust on the metal lock pin 4; the flat plate end of the metal lock pin 4 is provided with a 45-degree chamfer, the combined flat plate end is in a hexagonal shape matched with the groove of the anti-skid tyre nail 1, the 45-degree chamfer has the effect that when the metal lock pin 4 and the anti-skid tyre nail 1 are not completely aligned, the metal lock pin can slide into the fixed groove more easily, and the material of the metal lock pin can be attracted by a magnet. The longitudinal width of the leaf spring 5 is the same as the plate thickness of the metal locking pin 4.
FIG. 2 is a side sectional view and a partial enlarged view of the entire tire in the state of the retracted stud of the present invention; the antiskid tyre nail 1 can slide in the hexagonal tyre nail hole of the rubber tyre 3 along the radial direction, and the sliding range is limited by the rubber sealing ring 2 and the lower spring hole. When the antiskid tyre nail 1 is in a retraction state, the bottom end of the antiskid tyre nail is abutted against the spring hole below the tyre nail hole, and the tip end of the antiskid tyre nail 1 is exposed out of the sealing ring, but due to the design of the counter bore of the rubber outer tyre 3 at the tyre nail hole, the tip end of the antiskid tyre nail 1 does not exceed the outer contour circle of the rubber outer tyre 3, so that the sealing performance of the whole device can be maintained, and the antiskid tyre nail 1 cannot be in contact with the ground to damage a road. The annular battery 10 is located at the innermost side of the tire, and can also be obtained by connecting general batteries in series, the annular battery is connected with a control circuit board 9, the control circuit board 9 is connected with all traction electromagnets in the tire, and the dotted lines in the figure represent circuit connection to control the electrifying state of each traction electromagnet in the whole tire. In the state of fig. 2, the traction electromagnet a6 and the traction electromagnet B8 are both in the power-off state, and the metal lock pin 4 is under the tension of the sheet spring 5, and is inserted into the fixing groove of the anti-skid tyre nail 1, so that the anti-skid tyre nail 1 is limited to extend out under the tension of the coil spring 7. The tire in this case is a normal tire and can run on a normal road surface.
FIG. 3 is a side sectional view and a partial enlarged view of the entire tire in the state where the anti-skid studs are extended according to the present invention; in the state shown in fig. 2, if the traction electromagnet A6 is energized, the magnetic force attracts the metal lock pin 4 to overcome the tension and friction of the sheet spring 5, and the metal lock pin is pulled out of the fixing groove of the anti-skid tire nail 1, at this time, the anti-skid tire nail 1 extends out of the tire due to the action of the coil spring 7 until the anti-skid tire nail is stopped by the limiting action of the rubber seal ring 2, at this time, the traction electromagnet A6 is de-energized, and the metal lock pin 4 enters the fixing groove below the anti-skid tire nail 1 due to the tension of the sheet spring 5, so that the state shown in fig. 3 is switched. The tire in this case is a snow and ice tire with anti-skid tire pins, and can run on a snow and ice road surface. The radial force of the ground to the antiskid tyre nail 1 is counteracted by the metal lock pin 4, and the circumferential force is counteracted by the tyre nail hole of the rubber outer tyre 3. In the state of fig. 3, when the traction electromagnet A6 is energized, when the anti-skid tire nail 1 is not in contact with the ground, the magnetic force attracts the metal locking pin 4 to overcome the tension and friction of the sheet spring 5 and pull out from the fixing groove of the anti-skid tire nail 1, at this time, the electromagnet 8 is energized, and under the action of the ground and the electromagnet 8, the anti-skid tire nail 1 overcomes the tension of the coil spring 7 and retracts into the tire. When the bottom end of the antiskid tire nail 1 contacts the limiting groove, the traction electromagnet A6 is powered off, the metal lock pin 4 enters the fixing groove above the antiskid tire nail 1 due to the tension of the sheet spring 5, the state shown in the figure 2 is switched, and finally the electromagnet 8 is powered off. It can be seen that in the states of fig. 2 and 3, the electromagnet is in the power-off state, and is only powered on in the switching process of the two states of fig. 2 and 3, so that the use of electric quantity is greatly saved.
The antiskid tyre nails 1 are uniformly distributed on two sides of the rubber outer tyre 3, so that the stress of the whole tyre is uniform. The section of the rubber outer tire 3 is a middle drum, the two sides of the rubber outer tire are low, the whole tire is in contact with the middle tread part of the ground, so that the acting force of the two sides is weak, the stress of tire nails on the two sides is weak, the tips of the tire nails can break the ice and snow ground, the grip force is increased, and particularly when the tire turns.
Claims (4)
1. The utility model provides a novel snowfield child nail telescoping device which characterized in that: comprises an anti-skid tyre nail arranged in a rubber outer tyre, a rubber sealing ring, a metal lock pin, a sheet spring, a spiral spring, a traction electromagnet A, a traction electromagnet B, a control circuit board and a power supply,
tyre nail holes are uniformly formed on the rubber outer tyre along the circumference; the antiskid tyre nail is arranged in the tyre nail hole and can slide along the radial direction of the rubber outer tyre; a counter bore is arranged at the tire nail hole on the surface of the tire, and the rubber sealing ring is arranged in the counter bore;
one end of the antiskid tyre nail is a prism, the other end of the antiskid tyre nail is a cone, a cylinder for connecting the prism and the cone is arranged between the prism and the cone, two identical fixing grooves are arranged on the prism, and a ring with a shape similar to that of the prism is arranged on the top view of each fixing groove; the rubber sealing ring enables the cone on the antiskid tyre nail to extend out, but the prism end cannot extend out;
the metal lock pin is composed of two identical flat plates, the shape of one end of each flat plate is matched with one half of the fixing groove, and the two flat plates are fixed in the fixing groove after being combined; the other end of the flat plate is provided with a cylindrical groove, and the sheet spring is arranged in the cylindrical groove and is in a compressed state; the metal lock pin can slide in the tire nail hole; the metal lock pin is used for controlling the extension and retraction of the antiskid tyre nail;
a spring hole is arranged below the tire nail hole, and the section size of the spring hole is smaller than that of the tire nail hole; the spiral spring is positioned in the spring hole and is always in a compressed state;
the traction electromagnets A are positioned on two sides of the sheet spring and are used for attracting the sheet spring so as to control the opening of the metal lock sheath; correspondingly, a groove for the horizontal movement of the sheet spring is arranged on the rubber outer tire, and when the sheet spring moves to the farthest distance between the two flat plates, the anti-skid tire nail can move in the tire nail hole;
the traction electromagnet B is positioned below the spiral spring and is used for attracting the antiskid tyre nail so as to control the contraction of the antiskid tyre nail;
the control circuit board is connected with all the traction electromagnets and controls the on-off of the traction electromagnets;
the power supply is annular and is positioned on the innermost side in the radial direction of the tire and connected with the control circuit board.
2. The novel snowfield tire nail telescoping device of claim 1, characterized in that: one end of the flat plate matched with one half of the fixing groove is provided with a chamfer.
3. The novel snowfield tire nail telescoping device of claim 1, characterized in that: the longitudinal width of the leaf spring is the same as the thickness of the flat plate.
4. The novel snowfield tire nail telescoping device of claim 1, characterized in that: the section of the rubber outer tire is a middle drum, and the two sides of the rubber outer tire are low; the antiskid tyre nails are uniformly distributed on two sides of the rubber outer tyre.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010285603.6A CN111422009A (en) | 2020-04-13 | 2020-04-13 | Novel snowfield tire nail telescoping device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010285603.6A CN111422009A (en) | 2020-04-13 | 2020-04-13 | Novel snowfield tire nail telescoping device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN111422009A true CN111422009A (en) | 2020-07-17 |
Family
ID=71554122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010285603.6A Pending CN111422009A (en) | 2020-04-13 | 2020-04-13 | Novel snowfield tire nail telescoping device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111422009A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4338976A1 (en) * | 2022-09-13 | 2024-03-20 | Gartentechnik Münsterland GmbH | Wheel with variable spikes |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990010549A1 (en) * | 1989-03-01 | 1990-09-20 | Mindor Hesthaug | An arrangement in studded tires |
JPH09290608A (en) * | 1996-04-30 | 1997-11-11 | Toshio Yamaguchi | Tire with spike |
WO1998049022A1 (en) * | 1997-04-28 | 1998-11-05 | Tadeusz Lukasik | Tyres with mobile spikes |
DE29907898U1 (en) * | 1999-05-04 | 1999-12-09 | David Evince, O'Lucky, 14473 Potsdam | Micro power winter tires for cars |
US20140338807A1 (en) * | 2012-08-20 | 2014-11-20 | Ice Adaptive Tires, LLC. | Bolt Assembly Providing Reciprocating Bolt and Associated Method |
WO2015047204A1 (en) * | 2013-09-26 | 2015-04-02 | Gunal Ahmet | Automatic studded puncture proof tire |
CN208164676U (en) * | 2018-03-20 | 2018-11-30 | 刘冰冰 | A kind of tire and automobile with electronic anti-skid stud |
-
2020
- 2020-04-13 CN CN202010285603.6A patent/CN111422009A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990010549A1 (en) * | 1989-03-01 | 1990-09-20 | Mindor Hesthaug | An arrangement in studded tires |
JPH09290608A (en) * | 1996-04-30 | 1997-11-11 | Toshio Yamaguchi | Tire with spike |
WO1998049022A1 (en) * | 1997-04-28 | 1998-11-05 | Tadeusz Lukasik | Tyres with mobile spikes |
DE29907898U1 (en) * | 1999-05-04 | 1999-12-09 | David Evince, O'Lucky, 14473 Potsdam | Micro power winter tires for cars |
US20140338807A1 (en) * | 2012-08-20 | 2014-11-20 | Ice Adaptive Tires, LLC. | Bolt Assembly Providing Reciprocating Bolt and Associated Method |
WO2015047204A1 (en) * | 2013-09-26 | 2015-04-02 | Gunal Ahmet | Automatic studded puncture proof tire |
CN208164676U (en) * | 2018-03-20 | 2018-11-30 | 刘冰冰 | A kind of tire and automobile with electronic anti-skid stud |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4338976A1 (en) * | 2022-09-13 | 2024-03-20 | Gartentechnik Münsterland GmbH | Wheel with variable spikes |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2017128452A1 (en) | Escape device provided with remote controller for self-rescue in case of auto tyre being trapped in pit | |
CN111422009A (en) | Novel snowfield tire nail telescoping device | |
CN101249775A (en) | Automobile wheel anti-theft anti-drift device | |
KR20150071293A (en) | Stud for snow tire | |
KR101976700B1 (en) | Mold for pneumatic tire | |
CN202208236U (en) | Anti-slip device for wheel of motor vehicle | |
CN104175821A (en) | Antiskid device of tire | |
CN203698234U (en) | Picking rod for picking stones embedded in automobile tire | |
CN212949994U (en) | Expansion joint for automobile tire | |
KR20090013236U (en) | Stud pin for snow tire | |
CN204196610U (en) | Antiskid device for tyre | |
CN203600913U (en) | Antiskid tire and antiskid device thereof | |
CA2820120A1 (en) | Anti-skidding chain for automobile tire with tightening side-chains | |
CN202130265U (en) | Nonskid tire | |
KR100449418B1 (en) | Pneumatic tire | |
KR100833783B1 (en) | Stud pin for snow tire | |
CN216659437U (en) | All road conditions of integral type multipurpose antiskid and energy-conserving wheel hub | |
CN203387251U (en) | Novel antiskid type vehicular charger with power supply light bar | |
CN203580521U (en) | Antiskid tire structure for ice and snow covered pavement in winter | |
CN203387243U (en) | Novel antiskid type vehicular charger with charging monitoring lamp | |
RU208634U1 (en) | ANTI-SKID STUD FOR VEHICLE TIRES AND SHOES | |
KR101531131B1 (en) | Stud for Snow Tire | |
KR200428735Y1 (en) | Stud for snow tire | |
CN207955212U (en) | Anti-skid stud suitable for automobile tire | |
CN210082836U (en) | Antiskid dual-purpose tire |
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 | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200717 |