CN107434005A - Bicycle crank attachment means - Google Patents
Bicycle crank attachment means Download PDFInfo
- Publication number
- CN107434005A CN107434005A CN201610357741.4A CN201610357741A CN107434005A CN 107434005 A CN107434005 A CN 107434005A CN 201610357741 A CN201610357741 A CN 201610357741A CN 107434005 A CN107434005 A CN 107434005A
- Authority
- CN
- China
- Prior art keywords
- axostylus axostyle
- attachment means
- engagement disk
- bicycle crank
- crank attachment
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/02—Transmissions characterised by use of an endless chain, belt, or the like of unchangeable ratio
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
- Gears, Cams (AREA)
Abstract
The invention provides a kind of bicycle crank attachment means.For the bicycle crank attachment means to be installed on a bicycle, it includes an engagement disk, an axostylus axostyle and a crank.The engagement disk provides a fluted disc and combined, and the engagement disk has an axis hole, a swells and a ring portion, and the wherein swells is heaved from the centre of the engagement disk, and the ring portion is in flat condition and is set around the outer peripheral edge of the swells；The axostylus axostyle is through the axis hole and affixed with the engagement disk, and the axostylus axostyle has a binding end；The crank has an abutting end and a force side, and the binding end of the wherein abutting end and the axostylus axostyle consolidates, and the force side makes the crank be rotated centered on the axostylus axostyle to bear external force effect.Aforementioned structure is designed to mitigate the overall material usage of the bicycle crank attachment means, and then is reached simultaneously and saved cost of manufacture, reduction volume and light-weighted target.
Description
Technical field
The present invention is relevant with bicycle；Particularly relate to a kind of bicycle crank attachment means.
Background technology
Fig. 1 show the structure decomposition figure of existing bicycle crank attachment means.It is bent that the fluted disc attachment means 1 include one
Shank member 2, a fluted disc 3 and an axostylus axostyle 5.The crank element 2 includes an a shaft 2a and claw type head 2b, shaft 2a one end
To be pivotally connected a pedal (not shown), its other end connects claw type head 2b；Claw type head 2b has multiple extension pawl 2c,
Those extensions pawl 2c respectively has a through hole 2d；The fluted disc 3 to provide a chain (not shown) circle around, and with multiple directions should
The joint portion 3a of the axle center of fluted disc 3 extension, those joint portions 3a respectively have a perforation 3b, and the crank element 2 is with the fluted disc 3 by multiple
Bolt 4a is each passed through a through hole 2d with being combined again with a nut 4b after a perforation 3b, so that the crank element 2 and the fluted disc 3
For consolidation.One end is incorporated into claw type head 2b centre bit by the axostylus axostyle 5 in a manner of it can not be rotated relative to the crank element 2
Put.
By the structure design of the foregoing fluted disc attachment means 1, rider can drive the song in the process of pushes pedals
Shank member 2 is rotated centered on the axostylus axostyle 5 simultaneously with the fluted disc 3, and drives the wheel of bicycle to rotate indirectly by the chain,
So as to having the function that to drive bicycle to move.
However, the existing crank element 2 is because comprising connecting as one shaping and for shaft 2a and the claw type head of solid construction
Portion 2b, not only cause bulky and be unfavorable for packaging and transport, the overall weight of bicycle is more caused after bicycle is assembled in
It is all to increase, increase the burden of rider on foot.Furthermore the processing and fabricating of crank element 2 is not easy, and numerous waste materials will be produced after completion and form wave
Take and cause production cost high.
Therefore, how the existing fluted disc attachment means reach reduction volume and light weight in the case where reducing its production cost
The target of change, it is the design focal point of bicycle crank attachment means now.
The content of the invention
In view of this, it is an object of the invention to provide a kind of bicycle crank attachment means, be a reduction its be produced into
This has the characteristic person of reduction volume and light weight simultaneously.
In order to reach above-mentioned purpose, a kind of bicycle crank attachment means provided by the invention include：One engagement disk, tool
There is an axis hole；And an axostylus axostyle, through the axis hole and affixed with the engagement disk, the axostylus axostyle has a binding end.
Further, in order to reach above-mentioned purpose, a kind of bicycle crank attachment means provided by the invention include one
Engage disk, an axostylus axostyle and a crank.The engagement disk has an axis hole；The axostylus axostyle is through the axis hole and affixed with the engagement disk.
Effect of the invention is that the structure of the axostylus axostyle is fixed in by the engagement disk reduces its production cost, contracting to reach
Subtract the effect of volume and light weight.
Brief description of the drawings
Fig. 1 is a schematic diagram, the structure of existing bicycle crank attachment means.
Fig. 2 is the schematic diagram of the bicycle crank attachment means of first preferred embodiment of the invention.
Fig. 3 is the structure decomposition figure of Fig. 2 bicycle crank attachment means.
Fig. 4 is a stereogram, discloses the architectural feature of engagement disk and axostylus axostyle.
Fig. 5 is sectional views of the Fig. 4 along 5-5 lines, discloses the second ring of the cell wall connection axostylus axostyle of the first annular groove of engagement disk
The cell wall of groove.
Fig. 6 is sectional views of the Fig. 4 along 6-6 lines, discloses fluted disc with engaging after disk docks, combined by bolt with nut and
It is fixed.
Fig. 7 is Fig. 5 partial enlarged drawing, and the collar of announcement engagement disk, which is axially extended and surrounded, forms axis hole.
Fig. 8 is the schematic diagram of the bicycle crank attachment means of second preferred embodiment of the invention.
Fig. 9 is the schematic diagram of the bicycle crank attachment means of third preferred embodiment of the invention.
Figure 10 is sectional views of the Fig. 9 along 10-10 lines, discloses engagement disk and is fixed with axle by bolt.
Figure 11 is the schematic diagram of the bicycle crank attachment means of four preferred embodiment of the invention.
【Symbol description of the present invention】
100 bicycle crank attachment means
10 axostylus axostyles
The binding end of 101 first annular groove 102
20 engagement disks
The collar 221a axis holes of 22 swells 221
The wall of 221b end faces the second annular grooves of 221c 222
The locating dowel of 24 ring portion, 241 top surface 242
242a holes
The hollow-out parts of 26 rib 28
30 fluted discs
32 positioning holes
40 cranks
The fixture of 401 abutting end, 402 force side 42
The nut W solders of 51 bolt 52
5 Five-way tube 5a accommodating holes
The bearing of 6 pedal 7
200 bicycle crank attachment means
54 limited parts
62 axostylus axostyles 64 keep off the through hole of wall 641
The screw of 66 68 wall of engagement disk 681
300 bicycle crank attachment means
The axostylus axostyle 74 of 56 limited part 72 engages disk
The external tooth section of 721 screw 722
The internal tooth section of 741 through hole 742
400 bicycle crank attachment means
80 engagement 82 outer ratchets of disk
90 axostylus axostyles
Embodiment
For the present invention can be illustrated more clearly that, now enumerates several preferred embodiments and coordinate accompanying drawing to describe in detail as after.Please
Join shown in Fig. 2 and Fig. 3, to use the office of the bicycle of the bicycle crank attachment means 100 of first preferred embodiment of the invention
Portion's figure.The bicycle includes a Five-way tube 5, two pedals 6, two bearings 7, a fluted disc 30 and a crank 40, wherein, two axle
7 are held in the accommodating hole 5a of the Five-way tube 5.
The bicycle crank attachment means 100, which are incorporated at the Five-way tube 5 and include an axostylus axostyle 10 and one, engages disk
20.The axostylus axostyle 10 is located in the accommodating hole 5a of the Five-way tube 5, and is recessed the first ring to be formed from the outer ring surface of axostylus axostyle 10 with one
Groove 101, a binding end 102 and the screw 103 from the sunken end face of axostylus axostyle 10.The binding end 102 is formed at the axostylus axostyle 10
The external tooth section of outer ring surface；The bearing 7 is arranged with the both ends of the axostylus axostyle 10 respectively, and with enabling the smooth of axostylus axostyle 10
Rotated in accommodating hole 5a.
Coordinate shown in Fig. 4 to Fig. 5, the engagement disk 20 is stamping forming slim disk body, its small volume and light and handy, the engagement
Disk 20 has a swells 22 and one is set around the ring portion 24 of the outer peripheral edge of swells 22.The swells 22 is from the engagement disk 20
Centre heave and make the Pan Kou of the engagement disk 20 that there is a collar 221 and one towards the crank 40, the swells 22
Wall 222, the collar 221 be located at the center of the swells 22 and axially extend towards the crank 40 and around formed with
One axis hole 221a, and allow the axostylus axostyle 10 to be able to be arranged in axis hole 221a.One it is mentioned that the collar 221 is close to the song in this
The end face 221b of the one end of handle 40 and not less than the top surface 241 of the ring portion 24.In addition, the collar 221 has one second annular groove 221c,
The second annular groove 221c from the axis hole 221a hole wall, which are recessed, to be formed, and at the port of the collar 221 away from the crank 40
And it is connected with each other with the cell wall of the first annular groove 101 of the axostylus axostyle 10.The wall 222 is from the outer ring surface of the collar 221 along radially
It is prominent outwardly to be formed, and the wall 222 is located at the one end of the collar 221 away from the crank 40.
Coordinate shown in Fig. 7, in the present embodiment, the axostylus axostyle 10 and the engagement disk 20 by the welding manner of anaerobic brazing and for
Affixed, first annular groove 101 is inserted with second annular groove 221c for providing solder W, and it sets purpose to be to improve the axostylus axostyle
10 contact solder W area with the engagement disk 20, to strengthen bond strength between the two.In addition, aforementioned structure relation so that
The axostylus axostyle 10 through axis hole 221a and with the engagement disk 20 it is affixed after, the axostylus axostyle 10 is by by the axis hole of the collar 221
221a hole walls are sandwiched and are fixedly combined on the engagement disk 20, to form good configuration relation.
The ring portion 24 of the engagement disk 20 combines in flat condition and to provide the fluted disc 30, and the ring portion 24 has multiple protrusions
The locating dowel 242 of formation, respectively the locating dowel 242 respectively there is a hole 242a.The fluted disc 30 has multiple respectively positioning corresponding respectively
The positioning hole 32 of post 242, the process that the purpose of previous designs is to allow the fluted disc 30 to be incorporated into the engagement disk 20 reach convenient pair
The effect of position, and the fluted disc 30 is fixed on the engagement disk 20 by multiple bolts 51 and multiple nuts 52.In order to just
In explanation, below by the bolt 51 and one nut 52 exemplified by, the content shown in Fig. 6 please be join, when respectively should for the engagement disk 20
For locating dowel 242 respectively in connection with respectively positioning hole 32 of the fluted disc 30, the bolt 51 is arranged in the hole of the locating dowel 242
242a and lock with the nut 52, and then the effect that the fluted disc 30 is fixed on the engagement disk 20.Other one is mentioned that,
It is foregoing about the collar 221 close to the one end of crank 40 end face 221b not less than the top surface 241 of the ring portion 24 structure design,
The fluted disc 30 can be avoided to be interfered in assembling process and the collar 221.
In addition, the engagement disk 20 has more multiple ribs 26 and multiple hollow-out parts 28 (cooperation Fig. 4), those ribs 26 divide
It is not arranged in the swells 22 and the ring portion 24, to improve the intensity of engagement disk 20.Those hollow-out parts 28 are located at the drum
Rise in portion 22, the material usage of the engagement disk 20 is reduced so as to mitigating and reaches light-weighted effect simultaneously.
The crank 40 has an abutting end 401, a force side 402 and an interior perforation at the abutting end 401
403.The crank 40 is engaged by the interior perforation 403 and the binding end 102 with the axostylus axostyle 10, then, then passes through a fixture 42
(bolt) penetrates the interior perforation 403 and locks the interior perforation 403 of the crank 40, and the crank 40 is fixed on the axostylus axostyle 10 and prevented
Anti-avulsion falls.
By the structure design of the foregoing bicycle crank attachment means 100, rider is in the process of pushes pedals 6, general
The crank 40 can be driven to be rotated centered on the axostylus axostyle 10, and drive the fluted disc 30, the axostylus axostyle 10 and the engagement disk 20 simultaneously
Rotate.
The bicycle crank attachment means 100 of the present embodiment do not have must be mutually between the engagement disk 20 and the crank 40
With reference to structure design, therefore, both can distinctly manufacture in technical process, with avoid because it is integrally formed cause it is with high costs with production
The situation of raw more numerous waste materials.In addition, the small volume of engagement disk 20 and light and handy, and can be stably fixed on the axostylus axostyle 10 and with
The fluted disc 30 combines, consequently, it is possible to which the bicycle crank attachment means 100 can be in the case where reducing its production cost simultaneously
Reach the effect of light weight.
Illustrate again, the aspect of the fixed connection mode between the engagement disk 20 and the axostylus axostyle 10 is not limited with above-mentioned, such as
The bicycle crank attachment means 200 of the second preferred embodiment shown in Fig. 8, it, which forms structure and is same as this, first is preferable to carry out
The bicycle crank attachment means 100 of example, unlike, the bicycle crank attachment means 200 of second preferred embodiment are also
Include an at least limited part 54, an at least limited part 54 is two bolts, in addition, the axostylus axostyle 62 in the present embodiment has a gear
The outer wall of wall 64 from the axostylus axostyle 62, which protrudes, to be formed, and formed with two through holes 641 on the gear wall 64；Wall 68 on engagement disk 66 has
There are two screws 681 to correspond to the respectively through hole 641 respectively；When respectively the bolt 54 penetrates corresponding through hole 641 and lock is set on screw 681,
The axostylus axostyle 62 can be fixed on the engagement disk 66, and reach the reduction volume of previous embodiment, light weight and reduce cost
Effect.
The bicycle crank attachment means 300 of third preferred embodiment as shown in Figures 9 and 10, it is identical that it forms structure
In the bicycle crank attachment means 100 of the first preferred embodiment, the difference is that, the voluntarily skiving of the third preferred embodiment
Disk attachment means 300 also include an at least limited part 56, and an at least limited part 56 is a bolt, in addition, in the present embodiment
Axostylus axostyle 72 there is a screw 721, and the outer ring surface of the axostylus axostyle 72 is arranged with an external tooth section 722, and the engagement disk 74 has one logical
Hole 741 connects the screw 721, and the axis hole hole wall of the engagement disk 74 is provided with an internal tooth section 742, and the internal tooth section 742 is providing
The external tooth section 722 engages；When the external tooth section 722 of the axostylus axostyle 72 engages with the internal tooth section 742 of the engagement disk 74, the axle can be avoided
Bar 72 rotates relative to the engagement disk 74, then, then is locked on by the through hole 741 on the screw 721 by the bolt, and then
The axostylus axostyle 72 is fixed on the engagement disk 74, and reaches the effect for being same as both of the aforesaid embodiment.
In addition, the effect of the engagement disk in foregoing three embodiments is to provide fluted disc combination, in other embodiments, connect
Closing disk can also be directly as the disk body for providing chain setting.It please coordinate the voluntarily skiving of the 4th preferred embodiment shown in Figure 11
Disk attachment means 400, it forms the bicycle crank attachment means 100 that structure is same as the first preferred embodiment, included
The axostylus axostyle 90 that one engagement disk 80 and one is fixed on the engagement disk 80, unlike, engage the outer of disk 80 in the present embodiment
Around an outer ratchet 82 is convexly equipped with, chain (not shown) can be set around on the outer ratchet 82 and drive cycle wheel indirectly anchor ring
Rotate, in other words, the engagement disk 80 of the present embodiment may replace general fluted disc and reach identical gearing.In addition, riding
Person can also assess use demand, and combination of the fluted disc according to first preferred embodiment with engaging disk, and by fluted disc, (figure is not
Show) the engagement disk 80 of the present embodiment is installed in, the quantity so as to increasing fluted disc group, to allow rider to possess the choosing of more multistage
Select.
Preferably possible embodiments of the invention are the foregoing is only, such as using description of the invention and claim institute
For equivalence changes, ought to include within the scope of the present invention.
Claims (10)
1. a kind of bicycle crank attachment means, it is characterised in that include：
One engagement disk, has an axis hole；And
One axostylus axostyle, through the axis hole and affixed with the engagement disk, the axostylus axostyle has a binding end.
2. bicycle crank attachment means according to claim 1, wherein the engagement disk have a swells and a ring
Portion, the swells are heaved from the centre of the engagement disk, and the swells has a collar, and the collar axially extends simultaneously
Around formed with the axis hole；The ring portion is in flat condition and is set around the outer peripheral edge of the swells.
3. bicycle crank attachment means according to claim 2, the wherein ring portion have multiple prominent positioning formed
Post, the fluted disc are sticked in the ring portion, and the fluted disc has multiple positioning holes the locating dowel is combined with one respectively.
4. bicycle crank attachment means according to claim 3, it is characterised in that include multiple bolts and multiple
Nut；Wherein respectively the locating dowel also has a hole；One bolt is arranged in the nut lockings of Kong Eryu mono-.
5. bicycle crank attachment means according to claim 3, wherein the engagement disk surround projection one from outer ring surface
Outer ratchet, the outer ratchet is providing a chain winding.
6. bicycle crank attachment means according to claim 2, wherein the engagement disk also have multiple ribs, those ribs
Bar is respectively arranged in the swells and the ring portion.
7. bicycle crank attachment means according to claim 2, the wherein axostylus axostyle have one first annular groove, first ring
Outer ring surface of the groove along the axostylus axostyle is recessed to be formed；The engagement disk have one second annular groove be formed at the collar periphery and with this first
Annular groove is collectively forming depression；The axostylus axostyle and the engagement disk by welding manner and to be affixed, and solder insert first annular groove with
In second annular groove.
8. bicycle crank attachment means according to claim 2, it is characterised in that include an at least limited part, should
An at least limited part is through the engagement disk and the axostylus axostyle, so that the engagement disk secure bond is in the axostylus axostyle.
9. bicycle crank attachment means according to claim 8, wherein an at least limited part include an at least bolt,
The swells has the connection collar close at the collar, and has an at least screw；There is the axostylus axostyle gear wall certainly should
The outer wall of axostylus axostyle protrudes to be formed, and the gear wall has an at least through hole, and the bolt is locked and set on the screw through the through hole.
10. bicycle crank attachment means according to claim 8, wherein an at least limited part include an at least spiral shell
There is a screw and outer ring surface to be provided with an external tooth section for bolt, the axostylus axostyle, the engagement disk with a through hole connect the axostylus axostyle screw and
The axis hole hole wall of the engagement disk is provided with an internal tooth section to be incorporated into the external tooth section；The bolt is locked on the spiral shell by the through hole
Kong Shang.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610357741.4A CN107434005B (en) | 2016-05-26 | 2016-05-26 | Bicycle fluted disc connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610357741.4A CN107434005B (en) | 2016-05-26 | 2016-05-26 | Bicycle fluted disc connecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107434005A true CN107434005A (en) | 2017-12-05 |
| CN107434005B CN107434005B (en) | 2020-06-12 |
Family
ID=60453531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610357741.4A Expired - Fee Related CN107434005B (en) | 2016-05-26 | 2016-05-26 | Bicycle fluted disc connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107434005B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4300411A (en) * | 1978-06-12 | 1981-11-17 | Shimano Industrial Company Limited | Gear crank for a bicycle |
| EP0047092A2 (en) * | 1980-08-18 | 1982-03-10 | Shimano Industrial Company Limited | Gear crank for pedal vehicle |
| CN1135435A (en) * | 1994-11-29 | 1996-11-13 | 坎农戴尔公司 | Crank component of bicycle |
| JP3192840U (en) * | 2014-06-23 | 2014-09-04 | ▲いく▼昇 高 | Bicycle gear equipment |
| JP2014231281A (en) * | 2013-05-29 | 2014-12-11 | ブリヂストンサイクル株式会社 | Toothed pulley assembly for bicycle |
| CN104512514A (en) * | 2013-09-26 | 2015-04-15 | 什拉姆有限责任公司 | Bicycle crank arm and chainring carrier assembly |
-
2016
- 2016-05-26 CN CN201610357741.4A patent/CN107434005B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4300411A (en) * | 1978-06-12 | 1981-11-17 | Shimano Industrial Company Limited | Gear crank for a bicycle |
| EP0047092A2 (en) * | 1980-08-18 | 1982-03-10 | Shimano Industrial Company Limited | Gear crank for pedal vehicle |
| CN1135435A (en) * | 1994-11-29 | 1996-11-13 | 坎农戴尔公司 | Crank component of bicycle |
| JP2014231281A (en) * | 2013-05-29 | 2014-12-11 | ブリヂストンサイクル株式会社 | Toothed pulley assembly for bicycle |
| CN104512514A (en) * | 2013-09-26 | 2015-04-15 | 什拉姆有限责任公司 | Bicycle crank arm and chainring carrier assembly |
| JP3192840U (en) * | 2014-06-23 | 2014-09-04 | ▲いく▼昇 高 | Bicycle gear equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107434005B (en) | 2020-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI393641B (en) | Bicycle of the ratchet sleeve structure | |
| TWI596040B (en) | Bicycle chainring connection device | |
| TWI593599B (en) | Multi-sprocket configurations for bicycle transmissions and rear wheel axle configurations with this multi-sprocket configuration | |
| JP2009079666A (en) | Insert nut | |
| US6374975B1 (en) | Movable torque coupling element for the transmission of torque between two colinear shafts | |
| US20200122805A1 (en) | Cassette for a bicycle transmission system and sprocket for a cassette for a bicycle transmission system | |
| US6827497B2 (en) | Free-wheel hub assembly | |
| TWI233893B (en) | Bearing device for a bicycle hub | |
| US20080250896A1 (en) | Bicycle pedal | |
| CN107434005A (en) | Bicycle crank attachment means | |
| US8336694B2 (en) | Bicycle hub assembly with quickly switching function | |
| TWI635971B (en) | Ratchet ring structure connected to a hub assembly | |
| TWI681883B (en) | Bicycle hub assembly | |
| JP2011201010A (en) | Wrench | |
| US20050120834A1 (en) | Ratchet wrench | |
| CN208034537U (en) | Commutate spanner structure | |
| TWM596708U (en) | Bike hub clutch structure | |
| CN105836033A (en) | Intermediate shaft and claw disc integrated structure for crank set of bicycle and crank set of bicycle | |
| CN217348117U (en) | Detachable chain wheel and motorcycle | |
| CN210083458U (en) | Screw tooth replacing structure capable of quickly disassembling bicycle | |
| CN210162217U (en) | Wheel assembly and bicycle | |
| CN217994002U (en) | Embedded ratchet structure of wheel hub motor | |
| CN215399160U (en) | Crank assembling and disassembling structure for bicycle | |
| TWM558212U (en) | Bottom bracket parts | |
| CN210912749U (en) | Thread replacing structure for bicycle axle member |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200612 Termination date: 20210526 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |