CN107559417A - Eight flap overgear gearbox gearshift assemblies of gearshift comfort level can be improved - Google Patents
Eight flap overgear gearbox gearshift assemblies of gearshift comfort level can be improved Download PDFInfo
- Publication number
- CN107559417A CN107559417A CN201710935876.9A CN201710935876A CN107559417A CN 107559417 A CN107559417 A CN 107559417A CN 201710935876 A CN201710935876 A CN 201710935876A CN 107559417 A CN107559417 A CN 107559417A
- Authority
- CN
- China
- Prior art keywords
- gear
- block
- shifting
- gearshift
- self
- 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.)
- Granted
Links
Landscapes
- Gear-Shifting Mechanisms (AREA)
Abstract
The present invention relates to gearbox technical field, and in particular to can improve eight flap overgear gearbox gearshift assemblies of gearshift comfort level, it is therefore intended that it is big to solve the problems, such as that the changement three or four of existing eight shift transmission keeps off heavy and occupancy installing space of shifting gears.It is improved to shift fork axle by the way that shift fork in former shifting fork mechanism is slided in shift fork axle on upper lid and slides, self-locking structure is moved into manipulation assembly, in upper lid position installation interlocking block corresponding with shifting fork mechanism, not only solve the problem of gear shifting force is heavy, and space is saved, it ensure that the reasonable Arrangement of whole gearshift.
Description
Technical field
The invention belongs to gearbox technical field, and in particular to can improve eight flap overgear gearboxes of gearshift comfort level
With gearshift assembly.
Background technology
It is both provided with commonly keeping off on eight shift transmissions, but if when being provided with overgear, can all increases a set of reversing machine
Structure, so as to which the shifting direction of overgear and direct gear be exchanged, to meet the operating habit put into gear of driver.But mesh
The preceding various changements used can be produced with common gear and influenced each other, and not only transmission efficiency is low, and to hang overgear
With the power increase of putting into gear of direct gear, operating handle is bad, easily causes driver to produce fatigue；And existing gearshift will be certainly
Latch mechanism and mutual interlocking gear are all concentrated on lid, and it is larger to take installing space.
The content of the invention
It is an object of the invention to solve, the gear gearshift of the changement three or four of existing eight shift transmission is heavy and occupancy is installed
The problem of space is big, there is provided a kind of eight flap overgear gearbox gearshift assemblies for improving gearshift comfort level, the gearshift
Assembly slides former commutating structure shift fork in shift fork axle to be changed to shift fork axle and is slided on upper lid, so as to reduce by three or four gear gearshifts
Power, reach the purpose for improving user's gearshift comfort level；Self-locking mechanism is moved to simultaneously and manipulated in housing, mutual interlocking gear moves to
Lid, space is saved, ensure that the reasonable Arrangement of whole gearshift.
The technical scheme is that：Eight flap overgear gearbox gearshift assemblies of gearshift comfort level, bag can be improved
Include and manipulate assembly and upper cap assembly, it is characterized in that：
The manipulation assembly includes manipulating housing, gear level, block selecting axle, block selecting arm, gear shifting pulling head and is arranged on gearshift
Self-locking mechanism on bar, the block selecting axle are connected with block selecting arm, and block selecting arm overlaps with gear shifting pulling head, and gear shifting pulling head is set in gearshift
On bar, the mounting surface of gear level and gear shifting pulling head is provided with chute, and gear shifting pulling head can slide in chute；
The upper cap assembly includes shifting fork mechanism and mutual interlocking gear, and the mutual interlocking gear is recessed on lid including being arranged on
Platform, interlocking block is installed in concave station, the interlocking block includes being arranged on the hole of centre and the cantilever of both sides, and gear shifting pulling head insertion is mutual
It can swing in the hole of closing piece and in its hole, interlocking block can move in the concave station of upper lid；
The shifting fork mechanism includes Shang Gai, three or four gear commutation guide blocks, swings shifting block, three or four gear shift forks, is fixedly installed on
The support pivot pin covered and three or four gear commutation shift fork axles being be arranged in parallel with three or four gear shift fork axles, described 34 gear commutations are led
Guide block shifting block groove and shift fork shifting block groove are respectively arranged with block and three or four gear shift forks, support shaft is hinged in the middle part of the swing shifting block
On pin, swing shifting block one end and be articulated with guide block shifting block groove, the other end is articulated with shift fork shifting block groove；Three or four gear commutation guide blocks are firm
Property be connected to three or four gear shift fork axles on, three or four gear shift forks is rigidly attached to three or four gear commutation shift fork axles on.
Further, the self-locking mechanism includes the fixed control block being set on gear level, is provided with certainly in control block
Locked groove；Manipulate and self-locking ejector pin is installed on housing, self-locking ejector pin rear end and manipulate elastic connection between housing, before self-locking ejector pin
End heads into self-locking grooves.
Further, the self-locking ejector pin is arranged in the mounting hole for manipulating housing, self-locking ejector pin rear end connection self-locking bullet
Spring；The front end of self-locking spring is connected with self-locking ejector pin inner tip, and rear end, which is arranged on, to be manipulated on housing, and is limited by nut
Position.
Further, three or four gear guide blocks are additionally provided with three or the four gear shift fork axle, three or four gear guide blocks are rigidly attached to three
In four gear shift fork axles.
Further, the side of three or four gear commutation shift fork axle axis directions is arranged at intervals with back fork axle.
Further, described swing shifting block is in tabular, and its both ends keeps off shift forks with three or four gear commutation guide blocks and three or four
Contact site is in arc-shaped.
Further, gear level, which is located on the position at gear shifting pulling head both ends, is respectively arranged with a balancing spring.
Further, the material of the upper lid is aluminium alloy.
The beneficial effects of the invention are as follows：
1st, by the way that three or four gear commutation guide blocks are rigidly attached in three or four gear shift fork axles, three or four gear shift forks, which are rigidly attached to, to be changed
To in shift fork axle, three or four gear commutation shift fork axles are slided on upper lid so that efficiency of being put into gear when hanging overgear or direct gear is carried
It is high；Shifting fork mechanism only has overgear or direct gear action when commutating, be not in contact with the shift fork axle of other common gears and phase
Mutually influence so that all gears of speed changer are put into gear clearly, and transmission efficiency is high, and operating handle is good.
2nd, after changing shifting fork mechanism, original locking mechanism can not be arranged on upper lid, therefore will be arranged on upper lid originally
On self-locking mechanism be integrated in and manipulate in housing, mutual interlocking gear moves to Shang Gai, saves installing space.
The 3rd, self-locking grooves are set on a control block, manipulate and self-locking ejector pin is installed on housing, self-locking ejector pin rear end is with manipulating housing
Between self-locking spring is set, the front end of self-locking ejector pin heads into self-locking grooves, during gearshift, rotates gear level under external force, controls
Clamp dog rotates with, and self-locking ejector pin crosses the groove center of control block, is pressed on control block inclined-plane and auto-lock function can be achieved,
Compared with prior art, simple in construction, reliability is high.
The 4th, three or four gear guide blocks are set in three or four gear shift fork axles, three or four gear guide blocks are rigidly attached in three or four gear shift fork axles,
Commutation function can also be realized by applying active force to three or four gear guide blocks vertically.
5th, commutation shift fork axle is arranged on same axis with common gear shift fork axle, the body of shifting fork mechanism can be reduced
Product, save space.
6th, it is equal by the way that the distance for swinging round end to the fulcrum shaft at shifting block both ends is set, so that the active force at both ends
Equal in magnitude, in the opposite direction, power of putting into gear is small, and operation is comfortable.
7th, upper cover material is changed to aluminium alloy by original cast iron, alleviates the weight of cap assembly and whole gearshift
Amount.
Brief description of the drawings
Fig. 1 embodiment of the present invention manipulates the structural representation of assembly；
Fig. 2 is Fig. 1 B-B sectional views；
Fig. 3 is Fig. 1 C-C sectional views；
Fig. 4 is the structural representation of cap assembly in the embodiment of the present invention；
Fig. 5 is Fig. 4 S-S sectional views；
Fig. 6 is Fig. 4 A-A sectional views；
Fig. 7 is Fig. 6 C-C sectional views.
In figure：Covered on 1.；2. three or four gear commutation shift fork axles；3. back fork axle；4. support pivot pin；5. three or four gear shift forks；
6. lock bolt；7. manipulate housing；8. self-locking ejector pin；9. self-locking spring；10. nut；11. gear shifting pulling head；12. interlocking block；13.
Three or four gear guide blocks；14. three or four gear shift fork axles；15. three or four gear commutation guide blocks；16. swing shifting block；17. nut；18. back fork；
19. one or two gear shift fork axles；20. one or two gear shift forks；21. control block；22. gear level；23. block selecting axle；24. block selecting arm；25. balance
Spring.
Embodiment
Eight flap overgear gearbox gearshift assemblies of gearshift comfort level can be improved, including manipulate assembly and upper lid always
Into referring to Fig. 1 to Fig. 3, the operating mechanism includes manipulating housing 7, gear level 22, block selecting axle 23, block selecting arm 24 and gearshift group
First 11, block selecting axle 23 is connected with block selecting arm 24, and block selecting arm 24 overlaps with gear shifting pulling head 11, and gear shifting pulling head 11 is set in gear level 22
On, the mounting surface of gear level 22 and gear shifting pulling head 11 is provided with chute, and gear shifting pulling head 11 can slide in chute；In block selecting axle 23
Place applies external force and rotated, and the on-demand gear shaft 23 of block selecting arm 24 rotates, and gear shifting pulling head 11 compresses balance in the effect of block selecting arm 24
Spring 25, slided in the chute of gear level 22.The operating mechanism also includes the fixed control block being set on gear level 22
21, self-locking grooves are provided with control block 21；Manipulate and self-locking ejector pin 8 is installed on housing 7, the self-locking ejector pin 8 is arranged on manipulation
In the mounting hole of housing 7, the rear end of self-locking ejector pin 8 connection self-locking spring 9；The front end of self-locking spring 9 and the inner tip of self-locking ejector pin 8
It is connected, rear end, which is arranged on, to be manipulated on housing 7, and is carried out by nut 10 spacing.During gearshift, make gear level 22 under external force
Rotation, control block 21 rotate with, and self-locking ejector pin 8 crosses the groove center of control block 21, is pressed on the inclined-plane of control block 21, realize
Auto-lock function.
Referring to Fig. 4 to Fig. 7, the upper cap assembly includes shifting fork mechanism, and the shifting fork mechanism includes upper lid 1,34 gear and changed
Shift fork 5, the support pivot pin 4 being fixedly installed on upper lid are kept off to guide block 15, swing shifting block 16,34 and keep off shift fork axles with three or four
14 three or four gear commutation shift fork axles 2 be arrangeding in parallel, described 34 gear commutation guide blocks 15 and 34, which are kept off on shift fork 5, to be respectively arranged with
Guide block shifting block groove and shift fork shifting block groove, the middle part of swing shifting block 16 are hinged on support pivot pin 4, swing the one end of shifting block 16 and be hinged
In guide block shifting block groove, the other end is articulated with shift fork shifting block groove；It is in tabular to swing shifting block 16, and its both ends is commutated with three or four gears
The contact site that guide block 15 and 34 keeps off shift fork 5 is in arc-shaped.Three or four gear commutation guide blocks 15 are rigidly attached to three or four gear shift fork axles
On 14, three or four gear shift forks 5 are rigidly attached in three or four gear commutation shift fork axles 2；
Three or four gear commutation shift fork axles 2 and 34 are kept off between shift fork axle 14 and keep off shift fork axle provided with one or two gear shift fork axles 19,1
19 are provided with one or two gear shift forks 20, and it is firm that three or the four gear gear guide blocks 13 of guide blocks 13,34 are additionally provided with three or the four gear shift fork axle 14
Property be connected to three or four gear shift fork axles 14 on；The side of three or the four gear commutation axis directions of shift fork axle 2 is arranged at intervals with back fork axle
3, being rigidly connected on back fork axle 3 has back fork 18；Three or the four gear guide block 13 is provided with guide block shifting block groove, back fork
Shift fork shifting block groove is equipped with 18 and 1 gear shift forks 20；Concave station is provided with upper lid is corresponding with shifting fork mechanism, is pacified in concave station
Equipped with interlocking block 12, gear shifting pulling head 11 is inserted in the hole of interlocking block 12 and can swung in its hole, and interlocking block 12 can be in upper lid 1
Moved in concave station.
Operation principle：Such as：When selecting three or four gear, application external force is rotated at block selecting axle 23, and block selecting arm 24 is with block selecting
Axle 23 rotates, and gear shifting pulling head 11 compresses balancing spring 25 in the effect of block selecting arm 24, is slided in the chute of gear level 22, and then
Moved left and right in the concave station that the interlocking block 12 of drive and the grafting of gear shifting pulling head 11 covers on being arranged on.Gear shifting pulling head 11 is slid into
Three or the four gear grooves of guide block 13, interlocking block 12 are aligned under the effect of gear shifting pulling head 11 with three or the four gear grooves of guide block 13, interlocking block 12
Cantilever is stuck in one or two gear shift forks 20 and the groove of back fork 18, makes the two immovable, realizes interlock function.Then in external force
Backspin conversion pin 22 is acted on, gear shifting pulling head 11 rotates with, and three or four gear guide blocks 13 drive three or four under the effect of gear shifting pulling head 11
The gear gear commutation guide block 15 of shift fork axle 14 and 34 slides to the left simultaneously.The guide block shifting block groove being arranged on three or four gear commutation guide blocks 15
Swing shifting block 16 is driven to rotate so that the shift fork shifting block grooves on three or four gear shift forks 5 are promoted rigidly connected by thrust to the right
Three or the four gear gear commutation of shift fork 5 and 34 shift fork axles 2 are moved right together, and the gear shift forks 5 of commutation shift fork axle 2 drive three or four, which are realized, to be changed
Direction gearshift function.
Claims (8)
1. eight flap overgear gearbox gearshift assemblies of gearshift comfort level can be improved, including assembly and upper cap assembly are manipulated,
It is characterized in that：
The manipulation assembly includes manipulating housing (7), gear level (22), block selecting axle (23), block selecting arm (24), gear shifting pulling head (11)
And be arranged on the self-locking mechanism on gear level (22), the block selecting axle (23) and block selecting arm (24) are connected, block selecting arm (24) with
Gear shifting pulling head (11) is overlapped, and gear shifting pulling head (11) is set on gear level (22), the peace of gear level (22) and gear shifting pulling head (11)
Dress face is provided with chute, and gear shifting pulling head (11) can slide in chute；
The upper cap assembly includes shifting fork mechanism and mutual interlocking gear, and the mutual interlocking gear includes the concave station being arranged on lid (1),
Interlocking block (12) is installed, the interlocking block (12) includes being arranged on the hole of centre and the cantilever of both sides, gear shifting pulling head in concave station
(11) insert in the hole of interlocking block (12) and can be swung in its hole, interlocking block (12) can move in the concave station of Shang Gai (1)；
The shifting fork mechanism includes upper lid (1), three or four gear commutation guide blocks (15), swings shifting block (16), be three or four gear shift forks (5), solid
Surely the support pivot pin (4) being arranged on lid and three or four gear commutation shift fork axles being be arranged in parallel with three or four gear shift fork axles (14)
(2) guide block shifting block groove and shift fork shifting block, are respectively arranged with described three or four gear commutation guide blocks (15) and three or four gear shift forks (5)
Groove, swing shifting block (16) middle part are hinged on support pivot pin (4), swing shifting block (16) one end and be articulated with guide block shifting block groove
In, the other end is articulated with shift fork shifting block groove；Three or four gear commutation guide blocks (15) are rigidly attached in three or four gear shift fork axles (14), and three
Four gear shift forks (5) are rigidly attached in three or four gear commutation shift fork axles (2).
2. the eight flap overgear gearbox gearshift assemblies according to claim 1 for improving gearshift comfort level, it is special
Sign is：The self-locking mechanism includes the fixed control block (21) being set on gear level (22), and control block is provided with (21)
Self-locking grooves；Manipulate and self-locking ejector pin (8) is installed on housing (7), elasticity connects between self-locking ejector pin (8) rear end and manipulation housing (7)
Connect, the front end of self-locking ejector pin (8) heads into self-locking grooves.
3. the eight flap overgear gearbox gearshift assemblies according to claim 2 for improving gearshift comfort level, it is special
Sign is：The self-locking ejector pin (8) is arranged in the mounting hole for manipulating housing (7), self-locking ejector pin (8) rear end connection self-locking spring
(9)；The front end of self-locking spring (9) is connected with self-locking ejector pin (8) inner tip, and rear end, which is arranged on, to be manipulated on housing (7), and is passed through
Nut (10) carries out spacing.
It is 4. total according to any described eight flap overgear gearbox gearshifts for improving gearshift comfort level of claim 1-3
Into, it is characterised in that：Three or four gear guide blocks (13), three or four gear guide block (13) rigidity are additionally provided with three or the four gear shift fork axle (14)
It is connected in three or four gear shift fork axles (14).
5. the eight flap overgear gearbox gearshift assemblies according to claim 4 for improving gearshift comfort level, it is special
Sign is：The side of three or four gear commutation shift fork axle (2) axis directions is arranged at intervals with back fork axle (3).
6. the eight flap overgear gearbox gearshift assemblies according to claim 5 for improving gearshift comfort level, it is special
Sign is：Described swing shifting block (16) is in tabular, and its both ends keeps off shift forks (5) with three or four gear commutation guide blocks (15) and three or four
Contact site is in arc-shaped.
7. the eight flap overgear gearbox gearshift assemblies according to claim 6 for improving gearshift comfort level, it is special
Sign is：Gear level (22), which is located on the position at gear shifting pulling head (11) both ends, is respectively arranged with a balancing spring (25).
8. the eight flap overgear gearbox gearshift assemblies according to claim 7 for improving gearshift comfort level, it is special
Sign is：The material of the upper lid (1) is aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710935876.9A CN107559417B (en) | 2017-10-10 | 2017-10-10 | Gear shifting assembly capable of improving gear shifting comfort level and used for eight-gear belt overdrive gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710935876.9A CN107559417B (en) | 2017-10-10 | 2017-10-10 | Gear shifting assembly capable of improving gear shifting comfort level and used for eight-gear belt overdrive gearbox |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107559417A true CN107559417A (en) | 2018-01-09 |
| CN107559417B CN107559417B (en) | 2023-09-08 |
Family
ID=60984288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710935876.9A Active CN107559417B (en) | 2017-10-10 | 2017-10-10 | Gear shifting assembly capable of improving gear shifting comfort level and used for eight-gear belt overdrive gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107559417B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980339A (en) * | 2018-08-17 | 2018-12-11 | 清华大学 | A kind of double shift motor executing agency safety locks of automatic gear-box |
| CN109780201A (en) * | 2018-12-29 | 2019-05-21 | 綦江齿轮传动有限公司 | Overgear gear conversion equipment |
| CN112081907A (en) * | 2020-09-18 | 2020-12-15 | 宝鸡法士特齿轮有限责任公司 | Gearbox gearshift |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08200496A (en) * | 1995-01-20 | 1996-08-06 | Hino Motors Ltd | Shift mechanism for transmission |
| CN101555942A (en) * | 2009-05-15 | 2009-10-14 | 杨国栋 | Gear shift mechanism of six-speed automobile speed changer |
| CN201368194Y (en) * | 2009-03-05 | 2009-12-23 | 陕西法士特齿轮有限责任公司 | Reversing mechanism used for transmission overdrive |
| CN203532717U (en) * | 2013-09-04 | 2014-04-09 | 陕西法士特齿轮有限责任公司 | Reversing mechanism of transmission |
| CN204164334U (en) * | 2014-09-23 | 2015-02-18 | 中国第一汽车股份有限公司 | A kind of shifter of transmission |
| CN207364256U (en) * | 2017-10-10 | 2018-05-15 | 西安法士特汽车传动有限公司 | Eight flap overgear gearbox gearshift assemblies of gearshift comfort level can be improved |
-
2017
- 2017-10-10 CN CN201710935876.9A patent/CN107559417B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08200496A (en) * | 1995-01-20 | 1996-08-06 | Hino Motors Ltd | Shift mechanism for transmission |
| CN201368194Y (en) * | 2009-03-05 | 2009-12-23 | 陕西法士特齿轮有限责任公司 | Reversing mechanism used for transmission overdrive |
| CN101555942A (en) * | 2009-05-15 | 2009-10-14 | 杨国栋 | Gear shift mechanism of six-speed automobile speed changer |
| CN203532717U (en) * | 2013-09-04 | 2014-04-09 | 陕西法士特齿轮有限责任公司 | Reversing mechanism of transmission |
| CN204164334U (en) * | 2014-09-23 | 2015-02-18 | 中国第一汽车股份有限公司 | A kind of shifter of transmission |
| CN207364256U (en) * | 2017-10-10 | 2018-05-15 | 西安法士特汽车传动有限公司 | Eight flap overgear gearbox gearshift assemblies of gearshift comfort level can be improved |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980339A (en) * | 2018-08-17 | 2018-12-11 | 清华大学 | A kind of double shift motor executing agency safety locks of automatic gear-box |
| CN109780201A (en) * | 2018-12-29 | 2019-05-21 | 綦江齿轮传动有限公司 | Overgear gear conversion equipment |
| CN112081907A (en) * | 2020-09-18 | 2020-12-15 | 宝鸡法士特齿轮有限责任公司 | Gearbox gearshift |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107559417B (en) | 2023-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107559417A (en) | Eight flap overgear gearbox gearshift assemblies of gearshift comfort level can be improved | |
| CN207364256U (en) | Eight flap overgear gearbox gearshift assemblies of gearshift comfort level can be improved | |
| CN206647517U (en) | A kind of dual output double speed gear | |
| CN201314374Y (en) | Gear shifting mechanism of manual transmission | |
| CN204647271U (en) | Shifter of transmission assembly | |
| CN203176335U (en) | Gear-selecting automatic return type automobile manipulator assembly | |
| CN102954209B (en) | Automobile transmission gear interlocking device | |
| CN205226342U (en) | Five keep off derailleur operating mechanism | |
| CN201342937Y (en) | Shaft-drive four gears transmission for motor tricycle | |
| CN201487184U (en) | Variable speed transmission device | |
| CN201457686U (en) | Remote gear shifting control mechanism for gearbox | |
| CN201597454U (en) | Automobile shifting control mechanism assembly | |
| CN105333136B (en) | Wheeled tractor gearbox remote control mechanism | |
| CN201412499Y (en) | Transmission link type gear shifting control mechanism | |
| CN204533486U (en) | With the selector gear of joint shaft bearing | |
| CN103912672B (en) | Curve slide block selector | |
| CN203670728U (en) | Gear shifting mechanism of vehicle transmission, corresponding vehicle transmission and corresponding vehicle | |
| CN201129447Y (en) | Combined variable speed control mechanism | |
| CN209638334U (en) | A kind of large-tonnage excavator gearbox | |
| CN107289121A (en) | A kind of gearbox shifting device kept off one axle more | |
| CN201866221U (en) | Manual-drive control mechanism of power divider | |
| CN203335826U (en) | Transmission gear shifting operation mechanism | |
| CN202493668U (en) | Back and forth driving steering wheel tractor gear operating device | |
| CN201731054U (en) | Variable speed operating controller of passenger car | |
| CN203115082U (en) | Reverser shifting fork |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |