CN207767908U - Bi-motor liftable old-man chair - Google Patents
Bi-motor liftable old-man chair Download PDFInfo
- Publication number
- CN207767908U CN207767908U CN201720714395.0U CN201720714395U CN207767908U CN 207767908 U CN207767908 U CN 207767908U CN 201720714395 U CN201720714395 U CN 201720714395U CN 207767908 U CN207767908 U CN 207767908U
- Authority
- CN
- China
- Prior art keywords
- telescoping mechanism
- lifting frame
- fixed
- hinged
- lifting
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model discloses a kind of bi-motor liftable old-man chairs, including chassis, seat board elevating mechanism, back telescoping mechanism, leg telescoping mechanism, the seat board elevating mechanism is arranged on the chassis, and the back telescoping mechanism and the leg telescoping mechanism are arranged on the seat board elevating mechanism.It is reasonable for structure in the utility model, in aiding upright state, the whole height of seat body can be raised, and have turning forward for certain angle, to may make the center of gravity of old man to raise and move forward, therefore effective aiding upright can be played the role of, to ensure that the experience effect of aiding upright, in addition it can realize that stretching, extension is adjusted by the way that leg telescoping mechanism and back telescoping mechanism is arranged, therefore improve the comfort that seat uses.
Description
Technical field
The utility model is related to a kind of bi-motor liftable old-man chairs, belong to old-man chair field of structural design.
Background technology
A kind of electronic old-man chair, including pedestal are disclosed in patent document CN105146944A, are equipped on the pedestal
Toe board Tai Shen mechanisms, backrest tilting mechanism, aiding upright mechanism, cushion lifting mechanism and jointed gear unit, described is auxiliary
Standing mechanism is helped to be mounted in the both sides of the pedestal, the corresponding a set of cushion of installation of each aiding upright mechanism
Lifting mechanism;It often covers on the cushion lifting mechanism equipped with a set of toe board lifting mechanism;The link transmission
Mechanism connects toe board lifting mechanism and backrest tilting mechanism.Old-man chair in the patent document has the function of aiding upright,
With certain using effect, however there are still deficiencies in above patent document, are mainly manifested in, the electricity in above patent document
Dynamic old-man chair in use, realizes the function of aiding upright by the way that chair rearward height to be lifted up, but old man
Center of gravity is still within lower position, therefore old man is still relatively difficult when standing, and this electronic old-man chair was used in practice
The experience effect of auxiliary standing function is poor in journey.
Utility model content
In this regard, the utility model is intended to provide a kind of bi-motor liftable old-man chair reasonable for structure, this bi-motor can
Old-man chair is lifted when realizing auxiliary standing function by increasing seat body, and seat body is made to generate inclination forward, from
And the using effect of aiding upright is improved, and the old-man chair has leg assist extension and the front and back function of adjusting of backrest.
Realizing the technical solution of the utility model aim is:
A kind of bi-motor liftable old-man chair, including chassis, seat board elevating mechanism, back telescoping mechanism, leg telescopic machine
Structure, the seat board elevating mechanism are arranged on the chassis, and the back telescoping mechanism and leg telescoping mechanism setting exist
On the seat board elevating mechanism;The left and right sides is symmetrically fixed with fixed seat in the middle part of the chassis, and each fixed seat top has support
Portion;
The seat board elevating mechanism includes the first lifting frame, the second lifting frame, lifting linking member, electric pushrod, preceding company
The rear end of fitting and side frame unit, the first lifting frame and the lifting linking member is hinged with the fixed seat, and described the
The front end of one lifting frame and the lifting linking member is hinged with the front connector, the front end of the second lifting frame and institute
It states front connector to be fixedly connected, the side frame unit described in two is fixed on both sides on the second lifting frame, the side frame unit
It is upper that there is the piece that is fixedly connected being fixedly connected with seat body, the front end of the side frames unit to be fixed by the first fixation connecting rod
Connection, the second lifting frame rear portion is rotatably provided with the drive rod along the second lifting frame width direction setting, described
Electric pushrod is in integrally strip, and one end is hinged on the rear end of the chassis, has on the electric pushrod and driven by motor
The sliding block of device drives edge electric pushrod length direction movement, the sliding block is connected by connecting piece with the drive rod, described
The both ends of drive rod are fixed with the first driving piece, the first driving piece rotate backward after certain angle with second lifting
The top of frame leans, and the leg telescoping mechanism is mounted on side frame unit front, and the first driving piece passes through drive
Dynamic connecting rod links with the leg telescoping mechanism, passes through the drive link in the first driving piece forward/backward rotation
Drive the leg telescoping mechanism expansion/retraction, when the seat board elevating mechanism collapses completely described in second lifting frame after
End is fallen on the support portion, the first spacer pin is fixed on the side frame unit, when the leg telescoping mechanism is fully retracted
It leans with first spacer pin;
The back telescoping mechanism is mounted on the rear portion of the side frame unit comprising the second driving being symmetrical set
Piece, rear support, back rest and telescope motor, one end of the second driving piece and the side frame unit are hinged, and described second
The other end for driving piece and the lower end of the rear support are hinged, the upper end of the rear support and the back rest lower-end rear portion
It is hinged, the lower-end front portion of the back rest and hinged at the top of the rear end of the side frame unit, two second drives of the left and right sides
Movable plate is fixedly linked by the second fixation connecting rod, and one end of the telescope motor fixes the first installation on connecting rod with described first
Seat is connected, and the other end is connected with the second mounting base on the second fixation connecting rod.
In above-mentioned technical proposal, the side frame unit include front supporting member, side stand, curved support part, reinforce connecting rod and
Fixinig plate afterwards, the side stand are arranged along the second lifting lengths of frame direction, one end of the curved support part with it is described collateral
Frame connects, and the other end is connect with the upper end of the front supporting member, and the lower end of the front supporting member is connected with the front connector, institute
The one end for stating reinforcement connecting rod is connect with the side stand, and the other end is connect with the middle part of the curved support part, fixed after described
Piece is fixed on the rear end of the second lifting frame, and the rear end lower of the side stand is connect with the fixinig plate afterwards, and described the
One spacer pin is fixed on the curved support part;It is cut with scissors at the top of the lower-end front portion of the back rest and the rear end of the side stand
It connects, the rear end top of the side stand is further fixed on the second spacer pin, and the back rest bottom is provided with limiting section, the back
Telescoping mechanism when collapsing completely the limiting section and second spacer pin against.
The utility model has the effect of positive:It is reasonable for structure in the utility model, it, can in aiding upright state
The whole height of seat body is raised, and has turning forward for certain angle, to it may make the center of gravity of old man to raise simultaneously before
It moves, therefore effective aiding upright can be played the role of, to ensure that the experience effect of aiding upright, additionally due to setting leg
Portion's telescoping mechanism and back telescoping mechanism, therefore can realize that leg extension is adjusted and back is front and back and adjust, seat can be improved
The comfort used.
Description of the drawings
Fig. 1 is in side view when complete rounding state for old-man chair in the utility model;
Fig. 2 is the stereogram of old-man chair shown in Fig. 1;
Fig. 3 is in side view when aiding upright state for the old-man chair in the utility model;
Fig. 4 is the stereogram of old-man chair shown in Fig. 3;
Fig. 5 is that old-man chair shown in Fig. 4 saves the structural schematic diagram after parts thereof;
When Fig. 6 is electric pushrod (its top shoe is in initial position) in the utility model, drive rod and driving piece cooperation
Structural schematic diagram;
Fig. 7 is in side view when tilt state for the back telescoping mechanism of old-man chair in the utility model;
Fig. 8 is the stereogram of old-man chair shown in Fig. 7;
Fig. 9 is that the back telescoping mechanism of old-man chair in the utility model is in tilt state, leg telescoping mechanism has been in
Side view when full extended configuration;
Figure 10 is the stereogram of old-man chair shown in Fig. 9;
Figure 11 be the utility model old-man chair in side frame unit structural schematic diagram.
Reference numeral is as shown in the figure:1- chassis;2- seat board elevating mechanisms;21- first is lifted frame;211- first drives
Piece;22- second is lifted frame;23- lifting linking members;24- electric pushrods;25- front connectors;26- drive rods;27- motors drive
Device;28- sliding blocks;29- connecting pieces;The backs 3- telescoping mechanism;31- second drives piece;32- rear supports;33- back rests;
331- limiting sections;34- telescope motors;35- second fixes connecting rod;The second mounting bases of 351-;The legs 4- telescoping mechanism;It is propped up before 41-
Support member;42- side frame units;421- side stands;4211- is fixedly connected with piece;The second spacer pins of 4212-;422- curved support parts;
423- reinforces connecting rod;Fixinig plate after 43-;44- first fixes connecting rod;The first mounting bases of 441-;The legs 4- telescoping mechanism;46-
One spacer pin;5- fixed seats;51- support portions;6- drive links.
Specific implementation mode
The concrete structure in the utility model is done with explanation with reference to the accompanying drawings of the specification:
A kind of bi-motor liftable old-man chair, as shown in Figures 1 to 10 comprising chassis 1, seat board elevating mechanism 2, back
Telescoping mechanism 3, leg telescoping mechanism 4, the seat board elevating mechanism 2 are arranged on the chassis 1, the back telescoping mechanism 3
It is arranged on the seat board elevating mechanism 2 with the leg telescoping mechanism 4;The 1 middle part left and right sides of the chassis is symmetrically fixed with
Fixed seat 5,5 top of each fixed seat have support portion 51;The seat board elevating mechanism 2 includes that the first lifting frame 21, second is lifted
Rise frame 22, lifting linking member 23, electric pushrod 24, front connector 25 and side frame unit 42, the first lifting frame 21 and institute
The rear end for stating lifting linking member 23 is hinged with the fixed seat 5, before the first lifting frame 21 and the lifting linking member 23
End is hinged with the front connector 25, and the front end of the second lifting frame 22 is fixedly connected with the front connector 25, and two
The side frame unit 42 is fixed on both sides on the second lifting frame 22, has on the side frame unit 42 and seat body
What is be fixedly connected is fixedly connected with piece 4211, and the front end of the side frames unit 42 is fixedly connected by the first fixation connecting rod 44, institute
It states 22 rear portion of the second lifting frame and is rotatably provided with the drive rod 26 along the second lifting 22 width direction of frame setting, the electricity
Whole dynamic push rod 24 is in strip, and one end is hinged on the rear end of the chassis 1, has on the electric pushrod 24 and driven by motor
The sliding block 28 of 27 drives edge electric pushrod of dynamic device, 24 length direction movement, the sliding block 28 pass through connecting piece 29 and the driving
Bar 26 is connected, and the both ends of the drive rod 26 are fixed with the first driving piece 211, and the first driving piece 211 rotates backward one
Determine the top after angle with the second lifting frame 22 to lean, the leg telescoping mechanism 4 is mounted on the side frame unit
Front, the first driving piece 211 are linked by drive link 6 and the leg telescoping mechanism 4, in the first driving piece
4 expansion of the leg telescoping mechanism/retraction, the seat board liter are driven by the drive link 6 when 211 forward/backward rotation
The rear end of second lifting frame 22 described in when descending mechanism 2 collapses completely is fallen on the support portion 51, and the front connector 25 is then
It falls on the front of chassis 1, the first spacer pin 46 is fixed on the side frame unit 42, the leg telescoping mechanism 4 contracts completely
First spacer pin 46 described in Hui Shiyu leans;The back telescoping mechanism 3 is mounted on the rear portion of the side frame unit 42, packet
Include the second driving piece 31, rear support 32, back rest 33 and the telescope motor 34 being symmetrical set, the second driving piece 31
One end and the side frame unit 42 it is hinged, the other end of the second driving piece 31 and the lower end of the rear support 32 are cut with scissors
It connects, the upper end of the rear support 32 is hinged with 33 lower-end rear portion of the back rest, the lower-end front portion of the back rest 33 and institute
It states and is hinged at the top of the rear end of side frame unit 42, the two second driving pieces 31 of the left and right sides pass through second and fix the fixation of connecting rod 35
It is connected, one end of the telescope motor 34 is connected with the first mounting base 441 on the first fixation connecting rod 44, the other end and institute
The second mounting base 351 stated on the second fixation connecting rod 35 is connected.It is reasonable for structure in the utility model, in aiding upright state
When, the whole height of seat body can be raised, and have turn forward (shown referring to Fig. 3) of certain angle, so as to make
The center of gravity for obtaining old man is raised and is moved forward, therefore can play the role of effective aiding upright, to ensure that aiding upright effect,
Additionally due to being provided with leg telescoping mechanism and back telescoping mechanism, therefore it can realize that leg extension is adjusted and back is front and back and adjust
Section, can improve the comfort that seat uses.Leg telescoping mechanism is flexible using leg is disclosed in the prior art in the present embodiment
Mechanism does not improve it in the present embodiment, therefore it will not go into details herein.
As shown in figure 11, the side frame unit 42 in the present embodiment includes front supporting member 41, side stand 421, arc branch
Support member 422 reinforces connecting rod 423 and rear fixinig plate 43, and the side stand 421 is along the second lifting 22 length direction of frame setting, institute
The one end for stating curved support part 422 is connect with the side stand 421, and the other end is connect with the upper end of the front supporting member 41, institute
The lower end for stating front supporting member 41 is connected with the front connector 25, and described one end for reinforcing connecting rod 423 connects with the side stand 421
It connects, the other end is connect with the middle part of the curved support part 422, and the rear fixinig plate 43 is fixed on the second lifting frame 22
Rear end, the rear end lower of the side stand 421 with it is described after fixinig plate 43 connect, described in first spacer pin 46 is fixed on
On curved support part 422;It is hinged at the top of the lower-end front portion of the back rest 33 and the rear end of the side stand 421, it is described collateral
The rear end top of frame 421 is further fixed on the second spacer pin 4212, and 33 bottom of the back rest is provided with limiting section 331, the back of the body
When portion's telescoping mechanism 3 collapses completely the limiting section 331 and second spacer pin 4212 against.Pass through leg in the present embodiment
Telescoping mechanism offsets when collapsing with the first spacer pin 46, and the limiting section 331 and the thereon when back telescoping mechanism 3 is packed up completely
Two spacer pins 4212 offset to improve the stability used.
The motion principle of old-man chair in the present embodiment is as follows:Old-man chair is in complete rounding state and (calls state in the following text first
One, shown in Fig. 1 and Fig. 2) when, the first lifting frame 21 and second is lifted frame 22 and overlaps, back telescoping mechanism and leg
Portion's telescoping mechanism collapses completely, at this time first driving piece 211 backward with it is described second lifting frame 22 top against;Work as needs
State one is slided to when state two (i.e. standing state, referring to Fig. 3 with shown in Fig. 4) conversion, controlling the electric pushrod 24 and drive
Block 28 is moved forward by initial position, and the first driving piece 211 offsets with the second lifting holding of frame 22 always in the process, into
And as sliding block 28 persistently moves forward, the second lifting frame 22 and first is lifted frame 21 and is gradually lifted, to reach shape
State two, when needing to convert from state two to state one, control electric pushrod 24 moves backward to initial position with movable slider 28
;When needing, by state one, to state three, (i.e. back telescoping mechanism topples over the state of expansion backward, referring to Fig. 7 and Fig. 8 institutes
Show) conversion when, control telescope motor 24 shorten, to by make the second fixation connecting rod 35 rotation drive second driving piece 31 backward
Rotation, and then drive back rest 33 to rotate backward by rear support 32, until state three is reached, by one turn of state three-dimensional state
Telescope motor 34 is controlled when changing to extend;When needing state one to the (shape that i.e. leg telescoping mechanism is fully deployed of state four
State, shown in Fig. 9 and Figure 10) conversion when, controlling the electric pushrod 24 makes sliding block 28 be moved backward by initial position, in turn
Being rotated by drive rod 26 drives the first banking stop 211 to rotate forward, and the first banking stop 211 passes through drive during rotating forward
Dynamic connecting rod 6 drives leg telescoping mechanism 4 to be unfolded, when being converted by state four-way state three, by controlling the electric pushrod 24
Sliding block 28 is set to be moved toward initial position forward, when sliding block 28 reaches initial position, leg telescoping mechanism 4 collapses completely;
If to be converted from state two to state four, needs first to be converted to state one by state two, then arrive state four again, instead
If to be converted from state four-way state two, first by state four to state one, then to state two.
Obviously, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.And the obvious changes or variations that these connotations for belonging to the utility model are extended out still fall within this practicality
Novel protection domain.
Claims (2)
1. a kind of bi-motor liftable old-man chair, including chassis (1), seat board elevating mechanism (2), back telescoping mechanism (3), leg
Telescoping mechanism (4), the seat board elevating mechanism (2) are arranged on the chassis (1), the back telescoping mechanism (3) and described
Leg telescoping mechanism (4) is arranged on the seat board elevating mechanism (2);It is characterized in that:The left and right sides in the middle part of the chassis (1)
It is symmetrically fixed with fixed seat (5), each fixed seat (5) top has support portion (51);
The seat board elevating mechanism (2) includes the first lifting frame (21), the second lifting frame (22), lifting linking member (23), electricity
Dynamic push rod (24), front connector (25) and side frame unit (42), the first lifting frame (21) and the lifting linking member (23)
Rear end it is hinged with the fixed seat (5), the front end of the first lifting frame (21) and the lifting linking member (23) with
The front connector (25) is hinged, and the front end of the second lifting frame (22) is fixedly connected with the front connector (25), and two
The side frame unit (42) is fixed on both sides on the second lifting frame (22), has and seat on the side frame unit (42)
What chair ontology was fixedly connected is fixedly connected with piece (4211), and connecting rod (44) is fixed in the front end of the side frames unit (42) by first
It is fixedly connected, second lifting frame (22) rear portion is rotatably provided with along second lifting frame (22) width direction setting
Drive rod (26), the electric pushrod (24) are in integrally strip, and one end is hinged on the rear end of the chassis (1), the electricity
There is the sliding block (28) moved by motor driver (27) drives edge electric pushrod (24) length direction, institute on dynamic push rod (24)
It states sliding block (28) by connecting piece (29) to be connected with the drive rod (26), the both ends of the drive rod (26) are fixed with first
Drive piece (211), the top that the first driving piece (211) rotates backward after certain angle with the second lifting frame (22)
It leans, the leg telescoping mechanism (4) is mounted on side frame unit front, and the first driving piece (211) passes through driving
Connecting rod (6) links with the leg telescoping mechanism (4), in described first driving piece (211) forward/backward rotation by described
Drive link (6) drives leg telescoping mechanism (4) expansion/retraction, when the seat board elevating mechanism (2) is collapsed completely described in
The rear end of second lifting frame (22) is fallen on the support portion (51), and the first spacer pin is fixed on the side frame unit (42)
(46), it leans with first spacer pin (46) when the leg telescoping mechanism (4) is fully retracted;
The back telescoping mechanism (3) is mounted on the rear portion of the side frame unit (42) comprising second be symmetrical set
Drive piece (31), rear support (32), back rest (33) and telescope motor (34), one end of the second driving piece (31) and institute
It states side frame unit (42) to be hinged, the other end of the second driving piece (31) and the lower end of the rear support (32) are hinged, institute
Upper end and the back rest (33) lower-end rear portion for stating rear support (32) are hinged, the lower-end front portion of the back rest (33) and institute
It states and is hinged at the top of the rear end of side frame unit (42), the two second driving pieces (31) of the left and right sides pass through second and fix connecting rod
(35) it is fixedly linked, one end of the telescope motor (34) fixes the first mounting base (441) on connecting rod (44) with described first
It is connected, the other end is connected with the second mounting base (351) on the second fixation connecting rod (35).
2. bi-motor liftable old-man chair according to claim 1, which is characterized in that before the side frame unit (42) includes
Support element (41), curved support part (422), reinforces connecting rod (423) and rear fixinig plate (43), the side stand at side stand (421)
(421) along second lifting frame (22) length direction setting, one end and the side stand of the curved support part (422)
(421) connect, the other end connect with the upper end of the front supporting member (41), the lower end of the front supporting member (41) with it is described before connect
Fitting (25) is connected, and described one end for reinforcing connecting rod (423) is connect with the side stand (421), the other end and the arc branch
The middle part of support member (422) connects, and the rear fixinig plate (43) is fixed on the rear end of the second lifting frame (22), described collateral
The rear end lower of frame (421) is connect with the rear fixinig plate (43), and first spacer pin (46) is fixed on the curved support
On part (422);The lower-end front portion of the back rest (33) and hinged, the side stand at the top of the rear end of the side stand (421)
(421) rear end top is further fixed on the second spacer pin (4212), and back rest (33) bottom is provided with limiting section (331),
When the back telescoping mechanism (3) is collapsed completely the limiting section (331) and second spacer pin (4212) against.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720714395.0U CN207767908U (en) | 2017-06-19 | 2017-06-19 | Bi-motor liftable old-man chair |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720714395.0U CN207767908U (en) | 2017-06-19 | 2017-06-19 | Bi-motor liftable old-man chair |
Publications (1)
Publication Number | Publication Date |
---|---|
CN207767908U true CN207767908U (en) | 2018-08-28 |
Family
ID=63218072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201720714395.0U Withdrawn - After Issue CN207767908U (en) | 2017-06-19 | 2017-06-19 | Bi-motor liftable old-man chair |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN207767908U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107157163A (en) * | 2017-06-19 | 2017-09-15 | 海宁美惠机械有限公司 | Bi-motor liftable old-man chair |
-
2017
- 2017-06-19 CN CN201720714395.0U patent/CN207767908U/en not_active Withdrawn - After Issue
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107157163A (en) * | 2017-06-19 | 2017-09-15 | 海宁美惠机械有限公司 | Bi-motor liftable old-man chair |
CN107157163B (en) * | 2017-06-19 | 2023-08-04 | 海宁美惠机械有限公司 | Double-motor liftable old man chair |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107157163A (en) | Bi-motor liftable old-man chair | |
JP3219621U (en) | Electric stand-up assist reclining chair | |
CN104083008B (en) | Multi-state telescopic support | |
CN109924750A (en) | A kind of sofa extendable bracket and extending apparatus | |
CN104398033A (en) | Linkage-type lifting chair | |
CN105962667A (en) | Mechanical stretching device and chair unit | |
CN206151780U (en) | Comfortable massage chair | |
TWI495461B (en) | Integrated sitting, standing, rearward electric wheelchair | |
CN103720225B (en) | Simple sofa expansion device | |
CN207767908U (en) | Bi-motor liftable old-man chair | |
CN202908240U (en) | Telescopic foot pad mechanism of seat | |
JP2012170554A (en) | Chair-type massage apparatus | |
CN109431140A (en) | Elevating folding office chair | |
CN205866469U (en) | Can push up waist, lift leg, holder's beddo | |
CN113384407B (en) | Wheelchair with auxiliary lifting and standing functions | |
CN203370073U (en) | Flat-lying forward-moving type massage chair | |
CN206660087U (en) | One kind reach zero-g Massage chair frame | |
CN210331067U (en) | Massage equipment and shank link gear | |
CN110664581B (en) | Massage chair support structure | |
CN209219611U (en) | Leg rest retractable driving device | |
CN209595194U (en) | Electronic auxiliary leisure lift chair | |
CN210301457U (en) | Liftable and deployable wheelchair | |
CN219742260U (en) | Sofa chair capable of assisting in getting up | |
CN111789444A (en) | Sofa mechanical stretching device | |
CN212036799U (en) | Leg and foot linkage massage chair frame |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
AV01 | Patent right actively abandoned | ||
AV01 | Patent right actively abandoned | ||
AV01 | Patent right actively abandoned |
Granted publication date: 20180828 Effective date of abandoning: 20230804 |
|
AV01 | Patent right actively abandoned |
Granted publication date: 20180828 Effective date of abandoning: 20230804 |