CN213247868U - Waist rest adjusting device and seat - Google Patents
Waist rest adjusting device and seat Download PDFInfo
- Publication number
- CN213247868U CN213247868U CN202022221238.0U CN202022221238U CN213247868U CN 213247868 U CN213247868 U CN 213247868U CN 202022221238 U CN202022221238 U CN 202022221238U CN 213247868 U CN213247868 U CN 213247868U
- Authority
- CN
- China
- Prior art keywords
- seat
- waist rest
- cam component
- cam
- lumbar support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000008093 supporting effect Effects 0.000 claims abstract description 20
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 206010050296 Intervertebral disc protrusion Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 208000029761 vertebral disease Diseases 0.000 description 1
Images
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The utility model discloses a waist rest adjusting device and a seat, which comprises a waist rest and a supporting frame for supporting the waist rest, wherein the waist rest is rotationally connected to the supporting frame; an elastic element is arranged between the waist rest and the supporting frame, and the elastic element enables the waist rest to have a tendency of always keeping at an initial position; the support frame is provided with a rotation limiting mechanism, and the rotation limiting mechanism comprises a cam assembly and a control handle for controlling the cam assembly to rotate; the waist rest rotates backwards from the initial position to be in butt fit with the cam component; the cam component is driven to rotate by rotating the control handle so as to adjust the maximum rotation angle of the lumbar support; then, the chair of the utility model can adjust the looseness of the waist rest by the rotation of the cam component through the cam component arranged on the supporting frame, so as to be suitable for different people; simple structure, cost saving and convenient operation.
Description
Technical Field
The utility model relates to a thing to sit on field, in particular to waist leans on adjusting device and seat.
Background
Sub-health is always a living problem concerned by people, wherein lumbar vertebra problems brought by people due to long-time sitting are particularly frequent, while a chair is used as daily furniture for people to work and study, under the condition of long-time sitting and working, the spine of a human body is naturally bent, particularly the bending at the lumbar vertebra is more important, the lumbar vertebra is easily bent outwards when the chair is in a sitting posture for a long time, and isosceles vertebra diseases of lumbar disc herniation are easily caused after long-time sitting. As is well known, the spine of a human body is S-shaped, and therefore, a waist rest is additionally arranged at the backrest of part of office chairs to play a role of supporting the waist, so that the natural bending part of the lumbar vertebra is supported, the outward bending of the lumbar vertebra due to fatigue is prevented, and the lumbar vertebra health of office staff is guaranteed.
In practical application, however, different people have different requirements on the waist support; for a long-sitting office worker, the waist support is required to be capable of leaning forward to fit the waist, so that the waist supporting effect is achieved; for a user who sits on the chair to relax and take a rest, the waist rest needs to be slightly loosened, and the obvious waist supporting function is not needed; the existing chair with the waist support capable of being adjusted in front-back depth can provide support for the waist of a user through front-back adjustment of the waist support so as to meet different use requirements. However, the waist rest is adjusted by adopting a worm gear and worm mode in the existing waist rest adjusting device on the market, so that the structure is complex, the operation is time-consuming and labor-consuming, the waist rest can be adjusted back and forth by rotating for multiple circles, and the operation is inconvenient; and the additional arrangement of such an adjusting mechanism on the lumbar support is too costly for production and processing, resulting in an increase in the cost of the entire chair.
Disclosure of Invention
The utility model overcomes the defects in the prior art, and aims to provide a waist rest adjusting device which has simple structure, convenient operation and lower cost; the cam assembly is rotated to different positions, so that the maximum rotation angle of the lumbar support is adjusted; the looseness of the waist support can be automatically adjusted by a user according to the requirement of the user; and the control handle is rotated, so that the operation is very quick, and the use is more humanized.
The technical scheme of the utility model is realized like this:
a waist rest adjusting device comprises a waist rest and a supporting frame for supporting the waist rest, wherein the waist rest is rotationally connected to the supporting frame; an elastic element is arranged between the waist rest and the supporting frame, and the elastic element enables the waist rest to have a tendency of always keeping at an initial position; the support frame is provided with a rotation limiting mechanism, and the rotation limiting mechanism comprises a cam assembly and a control handle for controlling the cam assembly to rotate; the waist rest rotates backwards from the initial position to be in butt fit with the cam component; the cam component is driven to rotate by rotating the control handle so as to adjust the maximum rotation angle of the lumbar support.
Preferably, the supporting frame is provided with a mounting seat, and the cam assembly is mounted in the mounting seat; the waist rest is correspondingly provided with a rotary connecting seat which is rotatably connected to the mounting seat; the waist rest rotates backwards until the rotary connecting seat is in butt fit with the cam component.
Preferably, the mounting seat is longitudinally arranged and protrudes downwards from the support frame; the cam component is in a column shape and is transversely arranged in the mounting seat, and cams are symmetrically arranged at the left end and the right end of the cam component.
Preferably, the rotary connecting seat is arranged at the rear end of the waist rest, a rotating shaft is arranged on the rotary connecting seat, the rotating shaft is rotatably connected in the mounting seat, and the rotating shaft and the cam component are staggered up and down.
Preferably, the mounting seat comprises a front seat and a rear seat which are connected in a front-back involutory mode, and the front seat and the support frame are integrally formed; the rotary connecting seat is in rotary fit with the front seat, and the rear seat is fixedly connected with the front seat so as to limit the rotary connecting seat from being separated from the supporting frame.
Preferably, the elastic element is a spring, and two ends of the spring are respectively connected with the rotary connecting seat and the rear seat; when the waist rest rotates backwards, the spring deforms to provide reset elastic force.
Preferably, a gear adjusting mechanism is further arranged between the cam assembly and the rear seat, and the gear adjusting mechanism comprises clamping teeth and a clamping groove which are in clamping fit; the clamping teeth are arranged on one of the cam component or the rear seat, and the clamping grooves are correspondingly arranged on the other of the cam component or the rear seat.
Preferably, the middle part of the cam component is cylindrical, and the clamping teeth are arranged on the cylinder at intervals along the circumferential direction of the cylinder; a raised elastic sheet is correspondingly arranged in the rear seat, and the clamping groove is transversely arranged on the elastic sheet.
Preferably, the control handle is in a strip shape and is arranged on the left side and the right side of the mounting seat in a bilateral symmetry manner; and the control handle is provided with a synchronizing shaft which penetrates through the side surface of the mounting seat and then is inserted into the cam component.
A seat, comprising a back frame and the waist rest adjusting device; the support frame is connected to the back frame.
Adopted above-mentioned technical scheme the utility model discloses a design departure point, theory and beneficial effect are:
1, the rotation of the waist rest is effectively limited through a cam rotating structure, a cam assembly is arranged in a support frame, and a control handle is arranged to drive the cam assembly to rotate; then, the cam can be driven to rotate only by rotating the control handle, so that the maximum rotation angle of the lumbar support is adjusted to adjust the looseness of the lumbar support; simple structure is ingenious, can adjust according to user's self demand, uses more humanized.
2, compared with the traditional worm gear structure, the cam structure is adopted, so that the cost is lower in structure; the operation mode is simpler, and the control handle can be linearly rotated; can be more widely applied to actual processing production.
3, although a cam structure is adopted, a gear adjusting mechanism is arranged between the cam component and the rear seat; the waist rest has multi-gear adjustment, the gear feeling is obvious, and the operation hand feeling is better.
Drawings
Fig. 1 is a schematic perspective view of a waist rest and a support frame in an embodiment of the present invention;
fig. 2 is a side view of the lumbar support and the support frame in an embodiment of the present invention;
fig. 3 is a schematic perspective view of the waist rest and the support frame of the embodiment of the present invention without connection;
fig. 4 is a schematic perspective view of the connection between the waist rest and the rotary connecting seat in the embodiment of the present invention;
fig. 5 is a schematic perspective view of a rotation limiting mechanism on a support frame according to an embodiment of the present invention;
fig. 6 is a schematic front perspective view illustrating the connection between the front seat and the rear seat according to the embodiment of the present invention;
fig. 7 is a schematic back perspective view of the connection between the front seat and the rear seat of the embodiment of the present invention;
fig. 8 is a side sectional view of the support frame in an embodiment of the present invention;
FIG. 9 is a schematic perspective view of a cam assembly according to an embodiment of the present invention
Fig. 10 is a schematic perspective view of a seat according to an embodiment of the present invention.
The figures are numbered: a waist support 1; a support frame 2; a cam member 3; a control handle 4; a lower cross bar 5; a mounting seat 6; an upper link 7; the connecting base 8 is rotated; a front seat 9; a rear seat 10; a fixing lever 11; an avoidance window 12; a cam 13; a synchronizing shaft 14; a through hole 15; a knob 16; a rotating shaft 17; a recess 18; a fitting portion 19; a spring 20; a spring mounting hole 21; a spring limiting hole 22; a latch 23; an elastic sheet 24; a card slot 25; a back frame 26.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
In the description of the present invention, the term "at least one" means one or more unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The present embodiment is described with reference to the reference orientation of each part, such as front and rear, in a state where the user normally uses the seat after sitting on the seat.
The specific implementation manner of the utility model is as follows:
as shown in fig. 1-9, the present invention provides a lumbar support adjusting device, which comprises a lumbar support 1 and a supporting frame 2 for supporting the lumbar support 1; the waist rest 1 is rotationally connected to the support frame 2, so that the waist rest 1 can rotate back and forth relative to the support frame 2; an elastic element is arranged between the waist rest 1 and the support frame 2, the elastic element enables the waist rest 1 to always have the tendency of keeping at the initial position, and when the waist rest 1 rotates backwards, the elastic element can provide the reset elastic force; a rotation limiting mechanism is further arranged on the support frame 2 and comprises a cam component 3 and a control handle 4 for controlling the cam component 3 to rotate; when the waist rest 1 is stressed to rotate backwards to the maximum angle, the waist rest is abutted with the cam component 3; then the cam component 3 is rotated by operating the control handle 4 to adjust the maximum rotation angle of the lumbar support 1; to meet the requirements of different users; the looseness of the waist rest 1 is controlled by utilizing the cam rotation principle, and the structure is simple and ingenious.
As shown in fig. 1-4, the support frame 2 is a frame structure shaped like a Chinese character 'kou', a lower cross bar 5 is arranged on the support frame 2, and a mounting seat 6 for connecting the lumbar support 1 is arranged in the middle of the lower cross bar 5; the mounting seat 6 is longitudinally arranged and protrudes downwards from the lower cross rod 5, the cam component 3 is mounted in the mounting seat 6, and the cam component 3 rotates in the circumferential direction under the action of the control handle 4. The waist rest 1 is of an annular frame structure, an upper connecting rod 7 is arranged on the waist rest 1, a rotary connecting seat 8 is connected to the middle position of the upper connecting rod 7 through a screw, and the rotary connecting seat 8 is positioned at the rear end of the waist rest 1; then when the lumbar support 1 is connected with the support frame 2, the rotary connecting seat 8 is rotatably connected in the mounting seat 6, so that when the lumbar support 1 is backward, the cam component 3 is in butt fit with the rotary connecting seat 8.
As shown in fig. 5-9, specifically: the mounting seat 6 comprises a front seat 9 and a rear seat 10 which are connected in a front-rear butt joint manner; the front seat 9 is fixedly connected to the support frame 2, and the front seat 9 and the support frame 2 are integrally formed; the front seat 9 comprises fixing rods 11 positioned on the left side and the right side, and an avoidance window 12 for placing the cam component 3 is formed between the two fixing rods 11; the cam component 3 is in a column shape, cams 13 are symmetrically arranged at the left end and the right end of the cam component 3, and the cam component 3 is transversely arranged in an avoidance window 12; the control handle 4 is in a strip shape, and a synchronizing shaft 14 is arranged on the control handle 4; the fixing rod 11 is provided with a through hole 15 which penetrates through the left and the right, and the synchronizing shaft 14 penetrates through the through hole 15 and then penetrates through the cam component 3; and a knob 16 is also arranged at the other end of the control handle 4; the cam assembly 3 can then be rotated by turning the knob 16.
As shown in fig. 3, 4, 7 and 9, the rotary connecting seat 8 is provided with a rotating shaft 17 protruding towards two ends, and the back of the front seat 9 is correspondingly provided with a groove 18 rotationally matched with the rotating shaft 17; before the rotary connecting seat 8 is not connected with the lumbar support 1, the rotary connecting seat 8 is arranged on the front seat 9, so that the rotating shaft 17 is in rotary fit in the groove 18, and then the rear seat 10 is fixedly connected with the front seat 9 through a screw, so that the rotary connecting seat 8 is clamped between the front seat 9 and the rear seat 10; and finally, the waist rest 1 and the rotary connecting seat 8 are connected and fixed together through screws, namely the waist rest 1 is connected with the support frame 2. A matching part 19 which is abutted with the cam component 3 is arranged on the rotary connecting seat 8, the matching part 19 is an inclined plane which is formed by sinking in the rotary connecting seat 8, and the matching part 19 is positioned below the groove 18; the lumbar support 1 rotates backwards until the cam 13 on the cam component 3 abuts against the matching part 19, namely the lumbar support 1 rotates to the maximum angle; so that the engagement between the engagement portion 19 and the cam member 3 is restricted to the lumbar support 1.
As shown in fig. 2, 3 and 6, the elastic element is a spring 20, and a spring mounting hole 21 is correspondingly formed on the rotary connecting seat 8; after the rotary connecting seat 8 is connected and matched with the mounting seat 6, the spring mounting hole 21 is positioned between the groove 18 and the cam component 3, so that the interference between the rotation of the waist rest 1 and the limiting of the cam component 3 is avoided; a spring limiting hole 22 is correspondingly arranged on the rear seat 10; when the spring is installed, the spring 20 is embedded in the spring installation hole 21; the rear seat 10 is fixedly connected with the front seat 9, and the rear end of the spring 20 is positioned in the spring limiting hole 22; when a user uses the chair, the waist rest 1 is forced to rotate backwards, and the spring 20 is always kept between the spring mounting hole 21 and the spring limiting hole 22 and cannot be deviated; the spring 20 is elastically compressed to generate reset elastic force, so that the waist rest 1 can reset automatically after the user leaves; and when the user uses, have good damping sense, it is more comfortable to use.
As shown in fig. 6 to 9, a gear adjusting mechanism is further disposed between the cam module 3 and the rear seat 10, specifically: the middle part of the cam component 3 is cylindrical, clamping teeth 23 which are arranged at intervals are arranged on the cam component 3 along the circumferential direction of the cam component, and the clamping teeth 23 protrude out of the outer surface of the cam component 3; an arched elastic sheet 24 is arranged at a corresponding position on the rear seat 10, and a clamping groove 25 is transversely arranged on the elastic sheet 24; then, after the rear seat 10 is connected with the front seat 9; the latch 23 on the cam component 3 is clamped with the latch 25 on the elastic sheet 24; and the cam component 3 can be rotated to different positions to be clamped and matched with the elastic sheet 24 by rotating the knob 19; so that the cam component 3 can stay at different rotating positions, and then the lumbar support 1 can be adjusted in multiple gears; if the function of the lumbar support 1 is required to be obvious, the control handle 4 is rotated to enable the protruding end on the cam 13 on the cam component 3 to rotate forwards, the maximum rotation angle of the lumbar support 1 is the minimum, the lumbar support 1 can only rotate backwards by a small angle, and when the lumbar support is used by a user, the lumbar support 1 can play a role in supporting the waist; if the lumbar support 1 needs to be looser, the protruding end on the cam 13 is rotated backwards, so that the lumbar support 1 can be rotated backwards by a larger angle, and the user can relatively loosen the lumbar support when using the lumbar support.
As shown in fig. 10, the present invention further provides a seat, which is provided with a back frame 26; the support frame 2 is connected to the back frame 26; the connection is convenient, so that the structure of the support frame 2 is stable.
In conclusion, the utility model realizes the looseness adjustment of the waist rest 1 of the chair by adopting the rotation and the separation of the cam, has simple structure and obvious effect, and is very fast and convenient to operate; the maximum rotation angle of the waist rest 1 can be adjusted according to the self requirements of the user to adapt to different people, so that the chair is more humanized to use; and the structure is simple, the processing and production cost can be saved, and the method can be widely applied to actual processing and production.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (10)
1. A waist leans on adjusting device which characterized in that: the waist support is rotatably connected to the support frame; an elastic element is arranged between the waist rest and the supporting frame, and the elastic element enables the waist rest to have a tendency of always keeping at an initial position; the support frame is provided with a rotation limiting mechanism, and the rotation limiting mechanism comprises a cam assembly and a control handle for controlling the cam assembly to rotate; the waist rest rotates backwards from the initial position to be in butt fit with the cam component; the cam component is driven to rotate by rotating the control handle so as to adjust the maximum rotation angle of the lumbar support.
2. The lumbar support adjustment device of claim 1, wherein: the supporting frame is provided with a mounting seat, and the cam assembly is mounted in the mounting seat; the waist rest is correspondingly provided with a rotary connecting seat which is rotatably connected to the mounting seat; the waist rest rotates backwards until the rotary connecting seat is in butt fit with the cam component.
3. The lumbar support adjustment device of claim 2, wherein: the mounting seat is longitudinally arranged and protrudes downwards out of the support frame; the cam component is in a column shape and is transversely arranged in the mounting seat, and cams are symmetrically arranged at the left end and the right end of the cam component.
4. The lumbar support adjustment device of claim 3, wherein: the rotary connecting seat is arranged at the rear end of the waist rest, a rotating shaft is arranged on the rotary connecting seat, the rotating shaft is rotatably connected in the mounting seat, and the rotating shaft and the cam component are staggered up and down.
5. The lumbar support adjustment device of claim 3, wherein: the mounting seat comprises a front seat and a rear seat which are connected in a front-back involutory mode, and the front seat and the support frame are integrally formed; the rotary connecting seat is in rotary fit with the front seat, and the rear seat is fixedly connected with the front seat so as to limit the rotary connecting seat from being separated from the supporting frame.
6. The lumbar support adjustment device of claim 5, wherein: the elastic element is a spring, and two ends of the spring are respectively connected with the rotary connecting seat and the rear seat; when the waist rest rotates backwards, the spring deforms to provide reset elastic force.
7. The lumbar support adjustment device of claim 5, wherein: a gear adjusting mechanism is also arranged between the cam assembly and the rear seat and comprises clamping teeth and a clamping groove which are in clamping fit; the clamping teeth are arranged on one of the cam component or the rear seat, and the clamping grooves are correspondingly arranged on the other of the cam component or the rear seat.
8. The lumbar support adjustment device of claim 7, wherein: the middle part of the cam component is cylindrical, and the clamping teeth are arranged on the cylinder at intervals along the circumferential direction of the clamping teeth; a raised elastic sheet is correspondingly arranged in the rear seat, and the clamping groove is transversely arranged on the elastic sheet.
9. The lumbar support adjustment device of claim 2, wherein: the control handle is in a strip shape and is arranged on the left side and the right side of the mounting seat in a bilateral symmetry manner; and the control handle is provided with a synchronizing shaft which penetrates through the side surface of the mounting seat and then is inserted into the cam component.
10. A seat, characterized by: comprising a back frame and a lumbar support adjustment device as claimed in any of claims 1-9; the support frame is connected to the back frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022221238.0U CN213247868U (en) | 2020-09-30 | 2020-09-30 | Waist rest adjusting device and seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022221238.0U CN213247868U (en) | 2020-09-30 | 2020-09-30 | Waist rest adjusting device and seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213247868U true CN213247868U (en) | 2021-05-25 |
Family
ID=75949048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022221238.0U Active CN213247868U (en) | 2020-09-30 | 2020-09-30 | Waist rest adjusting device and seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213247868U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113616019A (en) * | 2021-09-16 | 2021-11-09 | 嘉兴市永泰五金塑料有限责任公司 | Double-back-frame chair back structure |
| WO2023207089A1 (en) * | 2022-04-25 | 2023-11-02 | 安吉瑞宝家具有限公司 | Adjustable waist rest mechanism |
-
2020
- 2020-09-30 CN CN202022221238.0U patent/CN213247868U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113616019A (en) * | 2021-09-16 | 2021-11-09 | 嘉兴市永泰五金塑料有限责任公司 | Double-back-frame chair back structure |
| CN113616019B (en) * | 2021-09-16 | 2024-07-23 | 嘉兴市永泰五金塑料有限责任公司 | Chair back structure with double back frames |
| WO2023207089A1 (en) * | 2022-04-25 | 2023-11-02 | 安吉瑞宝家具有限公司 | Adjustable waist rest mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2003521956A (en) | Chair mechanism | |
| CN213247868U (en) | Waist rest adjusting device and seat | |
| KR101107900B1 (en) | Back Support Device for Chair | |
| CN107397369B (en) | Seat tool | |
| CN2719105Y (en) | Recreational chair | |
| CN110742430A (en) | Dynamic seat | |
| KR20110050388A (en) | Posture Chair with Adjustable Back | |
| KR200438932Y1 (en) | Custom chair | |
| CN114009992B (en) | Waist leans on degree of depth adjusting device | |
| KR100708303B1 (en) | Chair with adjustable back | |
| CN110693222A (en) | Full-dynamic seat-back synchronous linkage device | |
| CN216494391U (en) | Linkage mechanism mounted on office chair | |
| CN216797071U (en) | Waist of seat leans on adjusting device | |
| CN216089695U (en) | Back of chair of adjusting seat depth on a large scale | |
| CN219460691U (en) | Waist holds in palm elasticity adjusting device | |
| CN215650104U (en) | Waist rest device and seat | |
| CN215686099U (en) | Waist rest adjusting device of chair | |
| CN108294516A (en) | A kind of office chair | |
| CN213962561U (en) | Chair with detachable top | |
| CN217243378U (en) | Waist leans on rotation mounting structure | |
| CN211431831U (en) | Elastic waist support backrest structure | |
| CN211092835U (en) | Elastic support piece and linkage mechanism for seat | |
| KR20130000521U (en) | Chair with a Resilient Back | |
| CN210930412U (en) | Leisure chair | |
| KR200379971Y1 (en) | Lumbar supporting chair |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |