CN112103118A - Keyboard key switch - Google Patents
Keyboard key switch Download PDFInfo
- Publication number
- CN112103118A CN112103118A CN202011012032.5A CN202011012032A CN112103118A CN 112103118 A CN112103118 A CN 112103118A CN 202011012032 A CN202011012032 A CN 202011012032A CN 112103118 A CN112103118 A CN 112103118A
- Authority
- CN
- China
- Prior art keywords
- key switch
- sliding block
- pressing block
- sliding
- keyboard key
- 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
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- 238000003825 pressing Methods 0.000 claims abstract description 58
- 239000002184 metal Substances 0.000 claims description 27
- 230000003068 static effect Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001122767 Theaceae Species 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/84—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback
- H01H13/85—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback characterised by tactile feedback features
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/10—Bases; Stationary contacts mounted thereon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
- H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
Landscapes
- Push-Button Switches (AREA)
Abstract
The utility model provides a keyboard key switch, including pressing a button and key seat, be provided with the slider that the guide was pressed a button and is slided from top to bottom on a pair of relative lateral wall of pressing a button respectively, be provided with the slide rail respectively on a pair of relative medial surface of key seat, the slider can slide from top to bottom in the slide rail, its characterized in that: the upper end of the sliding block is flush with the upper surface of the pressing block, and the lower end of the sliding block is flush with the lower surface of the pressing block; the shape of the upper end face of the sliding block is matched with the cross section of the sliding rail, and the cross section of the sliding block is gradually reduced from the upper end face to the lower end face. The keyboard key switch provided by the disclosure has the effects of smooth pressing and returning, high stability and key buffering.
Description
Technical Field
The present disclosure relates to an input device usable with a computer peripheral, an electronic device, etc., and more particularly, to a keyboard key switch.
Background
As is known, each key of a mechanical keyboard consists of a separate keyboard key switch, also called "axis", which is generally divided into a tea axis, a cyan axis, a white axis, a black axis and a red axis according to the classification of the switches. The keyboard key switch comprises a key seat and an upper cover, wherein the key seat and the upper cover are buckled to form a closed cavity, and a pressing block, a reset spring, a metal movable contact piece, a metal static contact piece and the like are arranged in the cavity. In the use process of the keyboard, the pressing block moves up and down to act on the metal movable contact piece, so that the metal movable contact piece is connected with or separated from the metal static contact piece, and the key function of the keyboard is realized. The mechanical keyboard is excellent in operability and life, and its use has been widespread.
When a pressing block and a key seat of a keyboard key switch in the current market are assembled, a sliding block and a sliding rail mode are generally adopted, namely sliding blocks for guiding the pressing block to slide up and down are respectively arranged on the side walls of two sides of the pressing block; slide rails are respectively arranged on two opposite side surfaces of the inner side surface of the key seat; when the pressing block is assembled into the key seat, the sliding block can slide up and down in the sliding rail.
However, the practical use effect of the slider and the slide rail is limited by the production process and the design of the mechanical structure. If the cooperation between slider and the slide rail is too tight, can lead to the button to reply time delay, slow down, not smooth and easy, give the user a astringent friction and feel, what is more, the dead condition of button card can appear.
If the fit between the two is too loose, the situation that the pressing block is unstable and easy to shake easily occurs.
In order to reduce the friction between the slider and the slide rail, the prior art has been developed with a technique of shortening the length of the slider, or modifying the slider into two elongated projections, which, although effective, still leaves room for improvement.
On the other hand, one side of the pressing block is provided with a bulge, and when the pressing block is pressed, the bulge moves downwards and collides with the metal moving spring plate; when the press block rebounds from the spring, the press block drives the protrusion to move upwards, so that the position of the sliding block can be inclined under the action force of the metal movable elastic sheet, and the sliding block and the sliding rail are in friction at the local position when the key is pressed, so that the sliding speed of the sliding block is slowed down, and even the sliding block is blocked.
Therefore, on the basis of ensuring the using effect of the mechanical keyboard, the smoothness of key pressing and returning is improved, and meanwhile, the improvement of the stability of the key is a technical problem which needs to be solved urgently by a person skilled in the art.
Disclosure of Invention
The utility model provides a keyboard key switch to solve prior art in the button press, reply smooth and easy degree not high, and the unable assurance problem of stability of button.
According to the present disclosure, there is provided a keyboard key switch, including a pressing block and a key seat, a pair of opposite side walls of the pressing block are respectively provided with a sliding block for guiding the pressing block to slide up and down, a pair of opposite inner side surfaces of the key seat are respectively provided with a sliding rail, the sliding block can slide up and down in the sliding rail, and the keyboard key switch is characterized in that: the upper end of the sliding block is flush with the upper surface of the pressing block, and the lower end of the sliding block is flush with the lower surface of the pressing block; the shape of the upper end face of the sliding block is matched with the cross section of the sliding rail, and the cross section of the sliding block is gradually reduced from the upper end face to the lower end face.
The section of the slide block along the up-and-down motion direction of the pressing block is triangular.
In a first possible implementation manner, the slider includes a plurality of hollow structures, the slide rail is a smooth plane, or the slide rail includes a plurality of hollow structures, and the slider is a smooth plane.
In a second possible implementation manner, the sliding block includes a plurality of protruding structures, and the sliding rail is a smooth plane, or the sliding rail includes a plurality of protruding structures, and the sliding block is a smooth plane.
The hollowed structures and the raised structures may be circular, polygonal, etc.
Through above-mentioned hollow out structure or protruding structure, reduced the area of contact between slider and the slide rail to reduce frictional force between the two, promoted gliding smooth and easy degree between slider and the slide rail.
In a third possible implementation manner, the key assembly further comprises a metal movable elastic sheet and a metal static elastic sheet, wherein the metal movable elastic sheet and the metal static elastic sheet are narrow strip-shaped metal elastic sheets and are adjacently arranged in the middle of one inner side face of the key seat.
One side of the pressing block is provided with a bulge, and when the pressing block is pressed, the bulge moves downwards and collides with the metal moving spring plate; when the pressing block rebounds from the spring, the protrusion is driven to move upwards, the position of the sliding block is inclined towards the direction of the other side opposite to the side where the protrusion is located under the action force of the metal movable elastic sheet, and therefore friction is generated between the lower portion of the side face of the sliding block and the lower portion of the side face of the sliding rail.
The gap between the side surface close to the convex sliding block and the side surface close to the convex sliding rail is gradually increased from top to bottom. Namely, the side surface of the sliding block is in a shape inclined towards the middle position of the sliding block, so that the friction between the lower part of the sliding block and the lower part of the sliding rail at the moment is reduced, and the situation that the sliding speed of the sliding block is slowed down or even the sliding block is stuck is avoided.
In a fourth possible implementation manner, a positioning pin is arranged at the bottom of the pressing block, and a positioning guide hole corresponding to the positioning pin is arranged at the bottom of the key seat. The positioning needle is inserted in the positioning guide hole. The pilot pin is in reciprocate in the location guide hole for when the spring kick-backs, press the briquetting along vertical direction rebound, avoid pressing the briquetting skew, guarantee to press the briquetting steady accuracy that resets. Through the arrangement, the stability of the key switch is improved while the smoothness of the key switch is ensured.
In a fifth possible implementation manner, the pressing block is provided with an extending arm, a positioning column is arranged below the extending arm, and a guiding hole corresponding to the positioning column is arranged at the bottom of the key seat; the positioning column penetrates into the guide hole.
The number of the positioning columns and the number of the guiding holes can be four, and the positioning columns and the guiding holes are respectively positioned at four corners of the key base.
Through the arrangement, the stability of the key switch is improved while the smoothness of the key switch is ensured.
In a sixth possible implementation manner, the upper end and the lower end of the sliding block are both provided with buffer elements; when the lower end of the sliding block reaches the bottom of the key seat, the sliding block can be buffered; when the sliding block moves upwards to reach the key upper cover under the action of the spring, the sliding block can be buffered.
The buffer element has elasticity, and the elasticity of the buffer element is greater than the elasticity of the sliding block and the sliding rail; the buffer element is any one of a rubber pad and a mute pad, and the buffer element is adhered to the upper end and the lower end of the sliding block.
In order to prevent the situation that the up-and-down sliding of the key is blocked due to the looseness or even the falling of the buffer element, the buffer element is adhered to the upper end and the lower end of the sliding block.
As can be seen from the above disclosure, the key switch of the keyboard provided by the present disclosure has the effects of smooth pressing and returning, high stability and key buffering.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is an exploded view of a prior art keyboard key switch;
fig. 2 is a schematic structural diagram of a pressing block in a key switch of a keyboard according to an embodiment of the present disclosure;
fig. 3 is a second schematic structural diagram of a pressing block in a key switch of a keyboard according to a second embodiment of the present disclosure;
fig. 4 is a third schematic structural view of a pressing block in a key switch of a keyboard according to a third embodiment of the present disclosure;
fig. 5 is a fourth schematic structural view of a pressing block in a key switch of a keyboard according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a key pad in a keyboard key switch according to an embodiment of the present disclosure;
fig. 7 is a fifth schematic view of a pressing block in a key switch of a keyboard according to an embodiment of the present disclosure;
in the figure: 1. the device comprises a pressing block, a sliding block, a hollow structure, a protruding structure, a positioning column, a positioning pin 51, a positioning pin 6, a positioning guide hole, a sliding rail 7, a key seat 8, a key seat 9, an extending arm 10 and a guide hole.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
In order to solve the problems in the prior art, the present disclosure provides a keyboard key switch, including a pressing block 1 and a key base 8; the side walls of two sides of the pressing block 1 are respectively provided with a slide block 2 for guiding the pressing block 1 to slide up and down; a pair of opposite inner side surfaces of the key seat 8 are respectively provided with a slide rail 7; when the pressing block 1 is assembled into the key seat 8, the sliding block 2 can slide up and down in the sliding rail 7. The upper end of the sliding block 2 is flush with the upper surface of the pressing block 1, and the lower end of the sliding block 2 is flush with the lower surface of the pressing block 1; the shape of the upper end face of the sliding block 2 is matched with the cross section of the sliding rail 7, and the cross section of the sliding block 2 is gradually reduced from the upper end face to the lower end face.
As shown in fig. 2, the section of the slide block 2 along the vertical movement direction of the pressing block 1 is triangular.
In a first possible implementation manner, as shown in fig. 3, the sliding block 2 is composed of a plurality of hollow structures 3, and the sliding rail 7 is a smooth plane, or the sliding rail 7 is composed of a plurality of hollow structures 3, and the sliding block 2 is a smooth plane.
In a second possible implementation manner, as shown in fig. 4, the sliding block 2 is composed of a plurality of protruding structures 4, and the sliding rail 7 is a smooth plane, or the sliding rail 7 is composed of a plurality of protruding structures 4, and the sliding block 2 is a smooth plane.
The hollowed formations 3 and the raised formations 4 may be circular, polygonal, etc.
Through above-mentioned hollow out structure 3 or protruding structure 4, reduced the area of contact between slider 2 and the slide rail 7 to reduce frictional force between the two, promoted the gliding smooth and easy degree between slider 2 and the slide rail 7.
In a third possible implementation manner, the key assembly further comprises a metal movable elastic sheet and a metal static elastic sheet, wherein the metal movable elastic sheet and the metal static elastic sheet are narrow strip-shaped metal elastic sheets and are adjacently arranged in the middle of one inner side face of the key seat.
A bulge is arranged on one side of the pressing block 1, and when the pressing block 1 is pressed, the bulge moves downwards and collides with the metal moving spring plate; when the pressing block 1 rebounds from the spring, the protrusion is driven to move upwards, and the position of the sliding block 2 is inclined towards the direction of the other side opposite to the side where the protrusion is located under the action force of the metal moving elastic sheet, so that friction is generated between the lower part of the side face of the sliding block 2 and the lower part of the side face of the sliding rail 7.
The gap between the side surface close to the convex sliding block and the side surface close to the convex sliding rail is gradually increased from top to bottom. Namely, the side surface of the sliding block 2 is made to present a shape inclined towards the middle position of the sliding block 2, so that the friction between the lower part of the sliding block 2 and the lower part of the sliding rail 7 at the moment is reduced, and the situation that the sliding speed of the sliding block 2 is slowed down or even the sliding block is stuck is avoided.
In a fourth possible implementation manner, as shown in fig. 5, a positioning pin 51 is provided at the bottom of the pressing block 1; as shown in fig. 6, the bottom of the key seat 8 is provided with a positioning guide hole 6 corresponding to the positioning pin 51. The positioning pin 51 is inserted into the positioning guide hole 6. The positioning pin 51 moves up and down in the positioning guide hole 6, so that when the spring rebounds, the pressing block 1 moves up along the vertical direction, the pressing block 1 is prevented from deviating, and the pressing block 1 is ensured to reset stably and accurately. Through the arrangement, the stability of the key switch is improved while the smoothness of the key switch is ensured.
In a fifth possible implementation manner, as shown in fig. 7, the pressing block 1 is provided with an extending arm 9, a positioning column 5 is arranged below the extending arm 9, and a guiding hole 10 corresponding to the positioning column 5 is arranged at the bottom of the key seat 8; the positioning column 5 penetrates into the guiding hole 10.
The number of the positioning columns 5 and the guiding holes 10 can be four, and the four positioning columns and the guiding holes are respectively positioned at four corners of the key base 8.
Through the arrangement, the stability of the key switch is improved while the smoothness of the key switch is ensured.
In a sixth possible implementation manner, the upper end and the lower end of the sliding block 2 are provided with buffer elements; when the lower end of the sliding block 2 reaches the bottom of the key seat 8, the sliding block 2 can be buffered; when the slide block 2 moves upwards to reach the key upper cover under the action of the spring, the slide block 2 can be buffered.
The buffer element has elasticity, and the elasticity of buffer element is higher than the elasticity of slider and slide rail. The cushioning element may be any one of a rubber pad and a sound deadening pad.
In order to prevent the situation that the up-and-down sliding of the key is blocked due to the looseness or even the falling of the buffer element, the buffer element is adhered to the upper end and the lower end of the sliding block 2.
The above-mentioned embodiments are merely specific embodiments of the present disclosure, which are used for illustrating the technical solutions of the present disclosure and not for limiting the same, and the scope of the present disclosure is not limited thereto, although the present disclosure is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive of the technical solutions described in the foregoing embodiments or equivalent technical features thereof within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the exemplary embodiments of the present disclosure, and should be construed as being included therein.
Claims (10)
1. A keyboard key switch comprises a pressing block and a key seat, wherein a pair of opposite side walls of the pressing block are respectively provided with a sliding block for guiding the pressing block to slide up and down, a pair of opposite inner side surfaces of the key seat are respectively provided with a sliding rail, and the sliding block can slide up and down in the sliding rail, and the keyboard key switch is characterized in that: the upper end of the sliding block is flush with the upper surface of the pressing block, and the lower end of the sliding block is flush with the lower surface of the pressing block; the shape of the upper end face of the sliding block is matched with the cross section of the sliding rail, and the cross section of the sliding block is gradually reduced from the upper end face to the lower end face.
2. The keyboard key switch of claim 1, wherein the slider comprises a plurality of hollowed-out structures, and the sliding track is a smooth plane, or the sliding track comprises a plurality of hollowed-out structures, and the slider is a smooth plane.
3. The keyboard key switch of claim 1, wherein the slider comprises a plurality of raised structures and the rail is a smooth surface, or wherein the rail comprises a plurality of raised structures and the slider is a smooth surface.
4. The keyboard key switch of claim 1, further comprising a metal moving spring and a metal static spring, wherein the metal moving spring and the metal static spring are both narrow strip-shaped metal springs and are adjacently arranged in the middle of one inner side surface of the key seat.
5. The keyboard key switch of claim 4, wherein the pressing block has a protrusion on one side, and when the pressing block is pressed, the protrusion moves downwards and contacts with the metal moving spring sheet; the gap between the side surface close to the convex sliding block and the side surface close to the convex sliding rail is gradually increased from top to bottom.
6. The keyboard key switch of claim 1, wherein the bottom of the pressing block is provided with a positioning pin, the bottom of the key base is provided with a positioning guide hole corresponding to the positioning pin, and the positioning pin is inserted into the positioning guide hole.
7. The keyboard key switch of claim 1, wherein the pressing block has an extending arm, a positioning post is disposed under the extending arm, a guiding hole corresponding to the positioning post is disposed at the bottom of the key seat, and the positioning post penetrates into the guiding hole.
8. The keyboard key switch of claim 7, wherein the number of the positioning posts and the guiding holes is four, and the positioning posts and the guiding holes are respectively positioned at four corners of the key base.
9. The keyboard key switch of claim 1, wherein the upper and lower ends of the slider are provided with a buffer member.
10. The keyboard key switch of claim 9, wherein the buffer element has an elasticity, and the elasticity of the buffer element is greater than the elasticity of the slider and the sliding track; the buffer element is any one of a rubber pad and a mute pad, and the buffer element is adhered to the upper end and the lower end of the sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011012032.5A CN112103118A (en) | 2020-09-23 | 2020-09-23 | Keyboard key switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011012032.5A CN112103118A (en) | 2020-09-23 | 2020-09-23 | Keyboard key switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112103118A true CN112103118A (en) | 2020-12-18 |
Family
ID=73756011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011012032.5A Pending CN112103118A (en) | 2020-09-23 | 2020-09-23 | Keyboard key switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112103118A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150001059A1 (en) * | 2013-06-28 | 2015-01-01 | Giga-Byte Technology Co., Ltd | Keycap, key structure and keyboard |
| CN204732325U (en) * | 2015-07-17 | 2015-10-28 | 刘永林 | A kind of button switch for keyboard |
| CN205920912U (en) * | 2016-07-08 | 2017-02-01 | 东莞市长资实业有限公司 | Mechanical axis keyboard key switch module that floated sliding construction set up |
| CN208061140U (en) * | 2018-02-09 | 2018-11-06 | 叶会荣 | Keyboard and its key switch |
| CN109192582A (en) * | 2018-10-12 | 2019-01-11 | 深圳马太亚科技有限公司 | Key switch and keyboard with the key switch |
| CN211319982U (en) * | 2020-02-25 | 2020-08-21 | 东莞市名键电子科技有限公司 | Key with paragraph touch sense |
-
2020
- 2020-09-23 CN CN202011012032.5A patent/CN112103118A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150001059A1 (en) * | 2013-06-28 | 2015-01-01 | Giga-Byte Technology Co., Ltd | Keycap, key structure and keyboard |
| CN204732325U (en) * | 2015-07-17 | 2015-10-28 | 刘永林 | A kind of button switch for keyboard |
| CN205920912U (en) * | 2016-07-08 | 2017-02-01 | 东莞市长资实业有限公司 | Mechanical axis keyboard key switch module that floated sliding construction set up |
| CN208061140U (en) * | 2018-02-09 | 2018-11-06 | 叶会荣 | Keyboard and its key switch |
| CN109192582A (en) * | 2018-10-12 | 2019-01-11 | 深圳马太亚科技有限公司 | Key switch and keyboard with the key switch |
| CN211319982U (en) * | 2020-02-25 | 2020-08-21 | 东莞市名键电子科技有限公司 | Key with paragraph touch sense |
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201218 |
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| RJ01 | Rejection of invention patent application after publication |