CN215552188U - Drawing and tabulating device - Google Patents
Drawing and tabulating device Download PDFInfo
- Publication number
- CN215552188U CN215552188U CN202120976760.1U CN202120976760U CN215552188U CN 215552188 U CN215552188 U CN 215552188U CN 202120976760 U CN202120976760 U CN 202120976760U CN 215552188 U CN215552188 U CN 215552188U
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- film
- template
- conveying mechanism
- platen
- linear positioning
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Abstract
The utility model provides a drawing and tabulation device which comprises a supporting frame, a laser irradiator, a film conveying mechanism and a drawing bedplate, wherein a template film is arranged on the film conveying mechanism, and the film conveying mechanism is used for moving the template film in a stepping manner along the horizontal direction; the drawing bedplate is arranged at the lower end of the supporting frame and is vertically opposite to the laser irradiator; the laser irradiator irradiates laser beams from top to bottom along the vertical direction of the support frame so that the laser beams penetrate through the template film to form projections corresponding to the pattern templates on the template film on the drawing platen. Thereby place the drawing on the drawing platen at the teaching in-process, form the projection that the figure template corresponds on the drawing through the effect of laser beam, make things convenient for the teacher to draw out the equal comparatively accurate geometric figure of size and shape according to the projection fast, make things convenient for the student to understand. The problem of do not have corresponding template and cause drawing irregularity during manual drawing among the prior art is solved.
Description
Technical Field
The utility model relates to the field of mathematical teaching equipment, in particular to a drawing and tabulation device.
Background
Geometry in mathematics is a subject for researching geometric figures, teachers often need to manually draw geometric figures on drawings in geometric teaching to facilitate auxiliary explanation of diagrams, most of the geometric figures do not have corresponding blackboard writing templates, manual drawing of teachers is often not standard enough, the manually drawn geometric figures are different from expected sizes and shapes, and understanding of students is affected.
In addition, when drawing a chart, a traditional method is to use a ruler to print a table manually, and in this way, due to errors in manual operation, printed table lines cannot be parallel to each other and the distance between the printed table lines is not uniform, so that the finished chart is not attractive.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a drawing and tabulation device to solve the problem that drawing is irregular due to the fact that no corresponding template exists during manual drawing in the prior art.
In order to achieve the above object, the present invention provides a drawing tabulation device including: a support frame; a laser irradiator disposed at an upper end of the support frame; the film conveying mechanism is arranged on the supporting frame, a template film is arranged on the film conveying mechanism, and the film conveying mechanism is used for moving the template film in a stepping manner along the horizontal direction; the drawing bedplate is arranged at the lower end of the supporting frame and is vertically opposite to the laser irradiator; the laser irradiator is used for irradiating laser beams from top to bottom along the vertical direction of the supporting frame so that the laser beams penetrate through the template film to form a projection corresponding to the pattern template on the template film on the drawing platen.
Further, the film conveying mechanism includes: the first film conveying mechanism is arranged on one side of the supporting frame; the second film conveying mechanism is arranged on the other side of the supporting frame and is opposite to the first film conveying mechanism; the template film conveying mechanism is used for enabling the template film to move along a first conveying direction, and the second film conveying mechanism is used for enabling the template film to move along a second conveying direction; the first conveying direction and the second conveying direction are opposite directions.
Further, the first film conveying mechanism includes: the first end of the template film is wound on the first material rolling roller; the second end of the template film rounds the first tensioning roller, extends along the horizontal direction and is wound on the second film conveying mechanism; the first stepping motor is connected with the first winding roller to drive the first winding roller to rotate around the first rotating direction so as to drag the template film to move along the first conveying direction.
Further, the second film conveying mechanism includes: the second end of the template film is wound on the second material rolling roller; the first end of the template film extends around the second tensioning roller along the horizontal direction and is wound on the first film conveying mechanism; and the second stepping motor is connected with the second material rolling roller to drive the second material rolling roller to rotate around the second rotating direction so as to drag the template film to move along the second conveying direction.
Further, the drawing platen includes: a platen; the linear positioning rods are arranged on the bedplate in parallel; each linear positioning rod can move along a first preset direction to adjust the distance between each linear positioning rod; the first preset direction is parallel to the plate surface of the bedplate and perpendicular to the extending direction of the linear positioning rod.
Furthermore, the bedplate is provided with two first sliding grooves, and the two first sliding grooves are correspondingly arranged on two sides of the bedplate and extend along a first preset direction; wherein, the both ends of every sharp locating lever all be provided with first spout assorted first slider, the first slider at every sharp locating lever both ends is corresponding to be installed in two first spouts so that sharp locating lever can be followed first direction removal of predetermineeing.
Further, the drawing platen further comprises: the two brake plates are correspondingly arranged on two sides of the bedplate and extend along a first preset direction; the two brake plates can move along a second preset direction so as to clamp two ends of each linear positioning rod after the position of each linear positioning rod is determined so as to prevent each linear positioning rod from moving; the second preset direction is the extension direction of the linear positioning rod.
Furthermore, a plurality of second sliding grooves are formed in the bedplate and extend along a second preset direction; the brake plates are correspondingly provided with a plurality of second sliding blocks matched with the second sliding grooves, and each brake plate is correspondingly installed in the second sliding grooves through the second sliding blocks so as to move along a second preset direction; the two braking plates are provided with a first preset position and a second preset position which move along a second preset direction, the two ends of each linear positioning rod are clamped when the two braking plates move to the first preset position, and the two braking plates are separated from the two ends of each linear positioning rod when the two braking plates move to the second preset position.
Further, the drawing platen further comprises: a frame arranged around the periphery of the bedplate; the locking handles are arranged on the frame body of the frame corresponding to the two braking plates; the frame body of the frame is provided with a screw hole opposite to the brake plate, the locking handle is provided with a stud matched with the screw hole, and the locking handle penetrates through the stud in the screw hole to move in a direction close to or far away from the brake plate during rotation; when the locking handle moves along the direction towards the braking plate, the end part of the stud is abutted against the braking plate and pushes the braking plate to move to a first preset position.
Further, the drawing platen further comprises: the number of the return springs is multiple, one ends of the return springs are connected with the brake plate, and the other ends of the return springs are connected with the frame body of the frame opposite to the brake plate; the plurality of return springs are used for pulling the corresponding brake plate back to the second preset position when the locking handle moves in the direction away from the brake plate.
The drawing and tabulation device applying the technical scheme of the utility model comprises a supporting frame, a laser irradiator, a film conveying mechanism and a drawing bedplate, wherein the laser irradiator is arranged at the upper end of the supporting frame; the film conveying mechanism is arranged on the supporting frame, a template film is arranged on the film conveying mechanism, and the film conveying mechanism is used for moving the template film in a stepping manner along the horizontal direction; the drawing bedplate is arranged at the lower end of the supporting frame and is vertically opposite to the laser irradiator; the laser irradiator is used for irradiating laser beams from top to bottom along the vertical direction of the supporting frame so that the laser beams penetrate through the template film to form a projection corresponding to the pattern template on the template film on the drawing platen. Thereby place the drawing on the drawing platen at the teaching in-process, form the projection that the figure template corresponds on the drawing through the effect of laser beam, make things convenient for the teacher to draw out the equal comparatively accurate geometric figure of size and shape according to the projection fast, make things convenient for the student to understand. The problem of do not have corresponding template and cause drawing irregularity during manual drawing among the prior art is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic diagram of an alternative embodiment of a drawing sheet device according to the present invention; and
fig. 2 is a schematic diagram of an alternative drawing table of the drawing tabulation device according to the embodiment of the utility model.
Wherein the figures include the following reference numerals:
10. a support frame; 20. a laser irradiator; 30. a film conveying mechanism; 31. a first film conveying mechanism; 311. a first coil roll; 312. a first tension roller; 313. a first stepper motor; 32. a second film transport mechanism; 321. a second material rolling roller; 322. a second tension roller; 323. a second stepping motor; 40. a template film; 50. a drawing platen; 51. a platen; 52. a linear positioning rod; 53. a first chute; 54. a first slider; 55. a brake plate; 56. a second chute; 57. a second slider; 58. a frame; 59. locking the handle; 510. a return spring; 60. and a controller.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
A drawing tabulation device according to an embodiment of the present invention, as shown in fig. 1, includes a support frame 10, a laser irradiator 20, a film conveying mechanism 30, and a drawing platen 50, the laser irradiator 20 being provided at an upper end of the support frame 10; the film conveying mechanism 30 is arranged on the supporting frame 10, the template film 40 is arranged on the film conveying mechanism 30, and the film conveying mechanism 30 is used for moving the template film 40 in a stepping mode along the horizontal direction; the drawing platen 50 is provided at the lower end of the support frame 10 and vertically opposed to the laser irradiator 20; wherein the laser irradiator 20 is configured to irradiate a laser beam from top to bottom in a vertical direction of the support frame 10 so that the laser beam penetrates the template film 40 to form a projection corresponding to the pattern template on the template film 40 on the drawing platen 50.
The drawing and tabulation device applying the technical scheme of the utility model comprises a supporting frame 10, a laser irradiator 20, a film conveying mechanism 30 and a drawing bedplate 50, wherein the laser irradiator 20 is arranged at the upper end of the supporting frame 10; the film conveying mechanism 30 is arranged on the supporting frame 10, the template film 40 is arranged on the film conveying mechanism 30, and the film conveying mechanism 30 is used for moving the template film 40 in a stepping mode along the horizontal direction; the drawing platen 50 is provided at the lower end of the support frame 10 and vertically opposed to the laser irradiator 20; wherein the laser irradiator 20 is configured to irradiate a laser beam from top to bottom in a vertical direction of the support frame 10 so that the laser beam penetrates the template film 40 to form a projection corresponding to the pattern template on the template film 40 on the drawing platen 50. Thereby place the drawing on drawing platen 50 at the teaching in-process, form the projection that the figure template corresponds on the drawing through the effect of laser beam, make things convenient for the teacher to draw out the geometric figure that all comparatively accurate of size and shape according to the projection fast, make things convenient for the student to understand. The problem of do not have corresponding template and cause drawing irregularity during manual drawing among the prior art is solved.
In specific implementation, the film conveying mechanism 30 includes a first film conveying mechanism 31 and a second film conveying mechanism 32, the first film conveying mechanism 31 is disposed on one side of the supporting frame 10, and the second film conveying mechanism 32 is disposed on the other side of the supporting frame 10 and is opposite to the first film conveying mechanism 31; wherein, two ends of the template film 40 are respectively wound on the first film conveying mechanism 31 and the second film conveying mechanism 32, the first film conveying mechanism 31 is used for enabling the template film 40 to move along the first conveying direction, and the second film conveying mechanism 32 is used for enabling the template film 40 to move along the second conveying direction; the first conveying direction and the second conveying direction are opposite directions. So that different graphic templates on the template film 40 can be selected as desired to project different shaped projections during the drawing process.
Specifically, the first film conveying mechanism 31 includes a first material roller 311, a first tension roller 312 and a first stepping motor 313, the second film conveying mechanism 32 includes a second material roller 321, a second tension roller 322 and a second stepping motor 323, a first end of the template film 40 is wound on the first material roller 311, a second end of the template film 40 is wound on the second material roller 321 after passing through the first tension roller 312 and extending in the horizontal direction, and then passing through the second tension roller 322; the first stepping motor 313 is connected to the first take-up roller 311 to drive the first take-up roller 311 to rotate in a first rotational direction to drag the stencil film 40 to move in the first transport direction, and the second stepping motor 323 is connected to the second take-up roller 321 to drive the second take-up roller 321 to rotate in a second rotational direction to drag the stencil film 40 to move in the second transport direction.
In order to facilitate operation and control, a controller 60 is further arranged on the supporting frame 10, the controller 60 is connected with the first stepping motor 313 and the second stepping motor 323, a power button, a forward button and a backward button are arranged on the controller 60, and the first stepping motor 313 and the second stepping motor 323 rotate clockwise by pressing the forward button once, so that the first winding roller 311 and the second winding roller 321 are driven to rotate clockwise, and the template film 40 is driven to move from left to right along the horizontal direction. The graphic templates on the template film 40 are printed on the template film 40 one by one in the extending direction of the template film 40, and the first stepping motor 313 and the second stepping motor 323 are operated in synchronization and rotated a predetermined number of times at a time, so that the template film 40 is moved by a distance of one graphic template at a time, and thus a desired graphic template can be selected according to teaching needs and projected on a drawing placed on the drawing platen 50. Similarly, pressing the back button once, the first stepping motor 313 and the second stepping motor 323 rotate counterclockwise to drive the first material rolling roller 311 and the second material rolling roller 321 to rotate counterclockwise, and further drive the template film 40 to move a distance of one graphic template from right to left along the horizontal direction, thereby switching to the previous graphic template and performing projection.
To facilitate the table drawing, further, as shown in fig. 2, the drawing platen 50 includes a platen 51 and a straight positioning rod 52; a plurality of linear positioning rods 52, the plurality of linear positioning rods 52 being arranged in parallel on the platen 51; each linear positioning rod 52 can move along a first preset direction to adjust the distance between each linear positioning rod 52; the first predetermined direction is parallel to the plate surface of the platen 51 and perpendicular to the extending direction of the linear positioning rod 52. The frames 58 are arranged along the circumferential direction of the bedplate 51, and the frames 58 on both sides of the bedplate 51 are provided with scale marks, so that when tables are drawn, the distance between each linear positioning rod 52 is adjusted according to the line spacing required by the tables and by comparing with the scale marks on both sides, and then each linear positioning rod 52 is clamped by a pen to draw the transverse lines of the tables, the linear speed of the tables is drawn quickly, and the distance between the transverse lines of the tables is uniform.
Specifically, the bedplate 51 is provided with two first sliding grooves 53, and the two first sliding grooves 53 are correspondingly arranged on two sides of the bedplate 51 and extend along a first preset direction; the two ends of each linear positioning rod 52 are provided with first sliding blocks 54 matched with the first sliding grooves 53, and the first sliding blocks 54 at the two ends of each linear positioning rod 52 are correspondingly installed in the two first sliding grooves 53 so that the linear positioning rods 52 can move along a first preset direction, so that the distance between every two adjacent linear positioning rods 52 can be freely adjusted in a manual mode.
In order to prevent the linear positioning rods 52 from moving to change the distance between the linear positioning rods 52 during the process of drawing the table line, the drawing table plate 50 further includes two braking plates 55, and the two braking plates 55 are correspondingly arranged on the two sides of the table plate 51 and extend in the first preset direction; meanwhile, a second sliding groove 56 is formed in the bedplate 51, the second sliding grooves 56 are multiple, the multiple second sliding grooves 56 are divided into two groups and correspondingly arranged on two sides of the bedplate 51, each second sliding groove 56 extends along a second preset direction, the second preset direction is the extending direction of the linear positioning rod 52, a plurality of second sliding blocks 57 matched with the corresponding group of second sliding grooves 56 are correspondingly arranged on each braking plate 55, and each braking plate 55 is correspondingly arranged in the multiple second sliding grooves 56 through the second sliding blocks 57 to move along the second preset direction; specifically, there are two second sliding grooves 56 on each side of the platen 51, two second sliding blocks 57 on each braking plate 55, and the two second sliding blocks 57 are correspondingly installed in the two second sliding grooves 56 so that the braking plates 55 can move in a second preset direction to be close to or away from each linear positioning rod 52. A plurality of locking handles 59 are arranged on the frame body of the frame 58 corresponding to the two braking plates 55, specifically, screw holes corresponding to the braking plates 55 are arranged on the frame body of the frame 58, the front ends of the locking handles 59 are studs matched with the screw holes, the rear ends of the locking handles 59 are rotating handles, and the locking handles 59 are arranged in the screw holes in a penetrating mode through the studs so as to move in a direction close to or far away from the braking plates 55 when rotating; meanwhile, the drawing board 50 further includes a plurality of return springs 510, the plurality of return springs 510 are divided into two groups, the two groups of return springs 510 are respectively and correspondingly disposed on the two braking plates 55, specifically, one end of each return spring 510 is connected to the braking plate 55, and the other end of each return spring 510 is connected to the frame body of the frame 58 opposite to the braking plate 55.
The brake plate 55 is provided with a first preset position and a second preset position which move close to or far away from each linear positioning rod 52, under a normal state, due to the drawing action of each return spring 510, the brake plate 55 is kept at the second preset position, after each linear positioning rod 52 is adjusted to be in the position, the locking handle 59 moves in the direction towards the brake plate 55 by rotating each locking handle 59, the end part of the stud at the front end of the locking handle 59 is abutted against the brake plate 55 and pushes the brake plate 55 to move to the first preset position, and at the moment, the two brake plates 55 clamp the two ends of each linear positioning rod 52 so as to avoid the position movement of each linear positioning rod 52 in the table drawing process; after the table is drawn, each locking handle 59 is rotated in the opposite direction, the end of the stud at the front end of the locking handle 59 is gradually separated from the braking plate 55, and under the pulling action of each return spring 510, the two braking plates 55 are separated from the end of each linear positioning rod 52 and return to the second preset position, so that the distance between each linear positioning rod 52 can be adjusted again.
In addition, the form can be drawn by projecting the form film 40, and the form can be quickly drawn by selecting a graphic form printed with a form frame, moving the graphic form to the lower part of the laser irradiator 20, forming the projection of the form on the drawing paper on the drawing platen 50 under the irradiation of the laser beam, and matching with a ruler.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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. A drawing and tabulation device, comprising:
a support frame (10);
a laser irradiator (20) provided at an upper end of the support frame (10);
the film conveying mechanism (30) is arranged on the supporting frame (10), a template film (40) is arranged on the film conveying mechanism (30), and the film conveying mechanism (30) is used for moving the template film (40) in a stepping mode along the horizontal direction;
a drawing platen (50) provided at a lower end of the support frame (10) and vertically opposed to the laser irradiator (20);
wherein the laser irradiator (20) is used for irradiating laser beams from top to bottom along the vertical direction of the support frame (10) so that the laser beams penetrate through the template film (40) to form a projection corresponding to a pattern template on the template film (40) on the drawing platen (50).
2. The drawing tabulation device of claim 1, wherein the film transport mechanism (30) includes:
a first film conveying mechanism (31) provided on one side of the support frame (10);
a second film conveying mechanism (32) provided on the other side of the support frame (10) and opposed to the first film conveying mechanism (31);
wherein both ends of the template film (40) are respectively wound on the first film conveying mechanism (31) and the second film conveying mechanism (32), the first film conveying mechanism (31) is used for enabling the template film (40) to move along a first conveying direction, and the second film conveying mechanism (32) is used for enabling the template film (40) to move along a second conveying direction;
the first conveying direction and the second conveying direction are opposite directions.
3. The drawing tabulation device of claim 2, wherein the first film transport mechanism (31) includes:
a first take-up roller (311) around which a first end of the template film (40) is wound;
a first tension roller (312), wherein the second end of the template film (40) passes around the first tension roller (312) to extend along the horizontal direction and is wound on the second film conveying mechanism (32);
and the first stepping motor (313) is connected with the first material rolling roller (311) to drive the first material rolling roller (311) to rotate around a first rotating direction so as to drag the template film (40) to move along the first conveying direction.
4. The drawing tabulation device of claim 2, wherein said second film transport mechanism (32) includes:
a second take-up roller (321) around which a second end of the template film (40) is wound;
a second tension roller (322), wherein the first end of the template film (40) bypasses the second tension roller (322) to extend along the horizontal direction and is wound on the first film conveying mechanism (31);
and the second stepping motor (323) is connected with the second material rolling roller (321) to drive the second material rolling roller (321) to rotate around a second rotating direction so as to drag the template film (40) to move along a second conveying direction.
5. The drawing tabulation device of claim 1, wherein said drawing platen (50) includes:
a platen (51);
a plurality of linear positioning rods (52), wherein the linear positioning rods (52) are arranged on the bedplate (51) in parallel;
each linear positioning rod (52) can move along a first preset direction so as to adjust the distance between each linear positioning rod (52);
the first preset direction is parallel to the plate surface of the bedplate (51) and perpendicular to the extending direction of the linear positioning rod (52).
6. The drawing and tabulating device of claim 5, wherein the platen (51) is provided with first sliding grooves (53), two first sliding grooves (53) are provided, and the two first sliding grooves (53) are correspondingly provided on two sides of the platen (51) and extend along the first preset direction;
the two ends of each linear positioning rod (52) are respectively provided with a first sliding block (54) matched with the first sliding grooves (53), and the first sliding blocks (54) at the two ends of each linear positioning rod (52) are correspondingly arranged in the two first sliding grooves (53) so that the linear positioning rods (52) can move along a first preset direction.
7. The drawing tabulation device of claim 5, wherein said drawing platen (50) further includes:
the number of the brake plates (55) is two, and the two brake plates (55) are correspondingly arranged on two sides of the bedplate (51) and extend along the first preset direction;
the two brake plates (55) can move along a second preset direction so as to clamp two ends of each linear positioning rod (52) after the position of each linear positioning rod (52) is determined so as to prevent each linear positioning rod (52) from moving;
the second preset direction is the extending direction of the linear positioning rod (52).
8. The drawing and tabulating device of claim 7, wherein a second sliding groove (56) is formed on the platen (51), the second sliding groove (56) is provided in a plurality, and the plurality of second sliding grooves (56) extend along the second preset direction;
a plurality of second sliding blocks (57) matched with the second sliding grooves (56) are correspondingly arranged on the brake plate (55), and each brake plate (55) is correspondingly installed in the second sliding grooves (56) through the second sliding blocks (57) to move along the second preset direction;
brake plate (55) have along the second predetermines the first default position and the second that the direction removed predetermines the position, two brake plate (55) remove to with each when first default position the both ends of sharp locating lever (52) are pressed from both sides tightly, two brake plate (55) remove to when the second predetermines the position with each the both ends separation of sharp locating lever (52).
9. The drawing tabulation device of claim 8, wherein said drawing platen (50) further includes:
a frame (58) disposed around a circumference of the platen (51);
a plurality of locking handles (59), wherein the plurality of locking handles (59) are arranged on the frame body of the frame (58) corresponding to the two braking plates (55);
the frame body of the frame (58) is provided with a screw hole opposite to the brake plate (55), the locking handle (59) is provided with a stud matched with the screw hole, and the locking handle (59) penetrates through the stud into the screw hole to move in a direction close to or far away from the brake plate (55) during rotation;
when the locking handle (59) moves in the direction towards the brake plate (55), the end of the stud abuts against the brake plate (55) and pushes the brake plate (55) to move to the first preset position.
10. The drawing tabulation device of claim 9, wherein said drawing platen (50) further includes:
the number of the return springs (510) is multiple, one ends of the return springs (510) are connected with the brake plate (55), and the other ends of the return springs (510) are connected with the frame body of the frame (58) opposite to the brake plate (55);
wherein a plurality of said return springs (510) are used to pull the corresponding brake plate (55) back to the second preset position when the locking handle (59) is moved in a direction away from the brake plate (55).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120976760.1U CN215552188U (en) | 2021-05-08 | 2021-05-08 | Drawing and tabulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120976760.1U CN215552188U (en) | 2021-05-08 | 2021-05-08 | Drawing and tabulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215552188U true CN215552188U (en) | 2022-01-18 |
Family
ID=79859426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120976760.1U Expired - Fee Related CN215552188U (en) | 2021-05-08 | 2021-05-08 | Drawing and tabulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215552188U (en) |
-
2021
- 2021-05-08 CN CN202120976760.1U patent/CN215552188U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220118 |