CN203202187U - Gear shifting device and vehicle with same - Google Patents
Gear shifting device and vehicle with same Download PDFInfo
- Publication number
- CN203202187U CN203202187U CN 201320149868 CN201320149868U CN203202187U CN 203202187 U CN203202187 U CN 203202187U CN 201320149868 CN201320149868 CN 201320149868 CN 201320149868 U CN201320149868 U CN 201320149868U CN 203202187 U CN203202187 U CN 203202187U
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- gear
- drag
- gearshift
- bearing
- final controlling
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Abstract
The utility model provides a gear shifting device and a vehicle with the gear shifting device. The gear shifting device comprises a gear-position swinging arm fixed on a gearbox shell body, an inhaul cable core wire, an inhaul cable sleeve installed on the inhaul cable core wire in a sleeved mode, an electronic gear-position generator used for generating a gear-position signal and a gear-position executing machine use for generating pushing and pulling action according to the gear-position signal. The electronic gear-position generator and the gear-position executing machine are electrically connected. The gear-position executing machine is respectively connected with one end of the inhaul cable core wire and one end of the inhaul cable sleeve. The other end of the inhaul cable core wire is connected with the gear-position swinging arm and the other end of the inhaul cable sleeve is connected with the gearbox shell body. The gear shifting device can reduce the occupied space of the gear shifting device and facilitate the installation of the gear shifting device.
Description
Technical field
The utility model relates to the gearshift field of vehicle, relates in particular to a kind of gearshift and has the vehicle of this device.
Background technique
Development along with technology, increasing automobile begins to adopt automatic transmission, and the locking of general vehicle gear and release all need the driver by the shift handle of shift control mechanism, by the drag-line heart yearn, the operation of handle is passed to the gear rocking arm, realize gear locking and release.
Present extensively should use along with automotive electronic technology, the invention of remote driving technology, all gears of car load comprise that the P retaining all adopts electronic equipment to drive, for fear of the existing speed changer of large-scale change, the shift control mechanism that extensively adopts on the vehicle directly is assemblied on the speed changer by a stepper motor lift-launch harmonic gear speed reducer and drives, but owing to used motor, make motor be arranged in the scheme that drives gear on the speed changer, exist motor big, take up room big and the inconvenient problem of installation.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, thereby a kind of gearshift is provided and has had the vehicle of this device, can reduce taking up room of gearshift, is convenient to the installation of gearshift.
For solving the problems of the technologies described above, the utility model provides following technological scheme:
The utility model provides a kind of gearshift, described gearshift comprises the gear rocking arm that is fixed on the case of transmission, the drag-line heart yearn, be sheathed on the drag-line overcoat on the drag-line heart yearn, for generation of the electronics gear generator of shift signal and the gear final controlling element that is used for producing according to shift signal push pull maneuver, described electronics gear generator is electrically connected with the gear final controlling element, described gear final controlling element is connected with an end of described drag-line heart yearn and drag-line overcoat respectively, the other end of described drag-line heart yearn is connected with described gear rocking arm, and the other end of described drag-line overcoat is connected with case of transmission.
Preferably, described electronics gear generator and gear final controlling element electrically connects as wireless connections.
Preferably, described electronics gear generator is connected with electrically connecting as by the CAN bus of gear final controlling element.
Preferably, described gear final controlling element comprises the housing with first cavity and is positioned at the driver element of first cavity, the gear reduction unit that is connected with the output shaft of described driver element, bearing unit and is used for rotatablely moving being converted to straight-line converting unit, one end of described converting unit is fixedly connected with housing and be connected with the output terminal of gear reduction unit by described bearing unit, the other end of described converting unit is connected with an end of described drag-line heart yearn, and described housing is connected with an end of drag-line overcoat.
Preferably, described driver element is specially direct current generator.
Preferably, described gear reduction unit is the fixed axis gear group, and described converting unit comprises screw rod and the swivel nut that cooperates with described screw rod, and described screw rod is connected with the output terminal of fixed axis gear group, and an end of described swivel nut is connected with an end of described drag-line heart yearn.
Preferably, described gear reduction unit is planetary gear set, and described converting unit comprises the swivel nut that screw rod and described screw rod cooperate, and described screw rod is connected with the planet carrier of planetary gear set, and an end of described swivel nut is connected with an end of described drag-line heart yearn.
Preferably, described gear final controlling element also comprises the motor rotary angle transmitter, and described motor rotary angle transmitter is arranged on direct current generator with respect to the end of the described output shaft the other end.
Preferably, described gear final controlling element also comprises the stroke sensor for detection of converting unit straight line motion distance, and described stroke sensor is arranged on the inwall of housing.
Preferably, described converting unit comprises screw rod and the swivel nut that cooperates with described screw rod, and described screw rod is connected with the output terminal of fixed axis gear group, and an end of described swivel nut is connected with an end of described drag-line heart yearn.
Preferably, described converting unit comprises the swivel nut that screw rod and described screw rod cooperate, and described screw rod is connected with the planet carrier of planetary gear set, and an end of described swivel nut is connected with an end of described drag-line heart yearn.
Preferably, described bearing unit comprises for the clutch shaft bearing of studdle and doubledirection thrust bearing, described bearing unit comprises that also described clutch shaft bearing, second bearing and doubledirection thrust bearing are fixedlyed connected with inner walls respectively for second bearing of the gear that supports the fixed axis gear group.
Preferably, described bearing unit comprises for the clutch shaft bearing of studdle and doubledirection thrust bearing, described bearing unit also comprises second bearing for the planet carrier of support planetary gears group, and described clutch shaft bearing, second bearing and doubledirection thrust bearing are fixedlyed connected with inner walls respectively.
Preferably, described gear final controlling element comprises also for sealing first cavity and supports the sliding sleeve of described swivel nut that one end of described swivel nut passes described sliding sleeve and is connected with an end of described drag-line heart yearn.
Preferably, described gear final controlling element also comprises be used to the rotation preventing device that prevents the drag-line heart yearn, described housing also comprises second cavity by described sliding sleeve and described first cavity isolation, described rotation preventing device is positioned at second cavity, and an end of described swivel nut is connected with an end of described drag-line heart yearn by described rotation preventing device.
Described gear final controlling element also comprises the guide groove that is positioned at second cavity and fixedlys connected with the inwall of housing, and described rotation preventing device cooperates with described guide groove and can moving axially along described housing.
The utility model provides a kind of vehicle, above-mentioned gearshift.
Compared with prior art, the utlity model has following beneficial effect: export shift signal to the gear final controlling element by electronics gear generator, the gear final controlling element is according to the shift signal output action signal that receives, electronics gear generator needs only with the gear final controlling element and is electrically connected, and the gear final controlling element is to realize gear operation transmission by drag-line, therefore the gear final controlling element is free to arrange the position that excess room is arranged onboard, thereby reduce taking up room of gearshift, be convenient to the installation of gearshift.
Description of drawings
Fig. 1 is a kind of embodiment's of gearshift of the present invention structural representation.
Fig. 2 is a kind of embodiment's of gear final controlling element of the present invention structural representation.
Fig. 3 is the another kind of embodiment's of gear final controlling element of the present invention structural representation.
Embodiment
Clearer for technical problem, technological scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
In description of the present utility model, it will be appreciated that, term " " center "; " vertically "; " laterally "; " length "; " width "; " thickness ", " on ", D score, " preceding ", " back ", " left side ", " right side ", " vertically ", " liquid is flat ", " top ", " end " " interior ", " outward ", " clockwise ", close the orientation of indications such as " counterclockwise " or position is based on orientation shown in the drawings or position relation, only be that the present invention for convenience of description and simplification are described, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
The utility model provides a kind of embodiment's gearshift, as shown in Figure 1, described gearshift comprises the gear rocking arm 2 that is fixed on the case of transmission 1, drag-line heart yearn 3, be sheathed on the drag-line overcoat 4 on the drag-line heart yearn 3, for generation of the electronics gear generator 5 of shift signal and the gear final controlling element 6 that is used for producing according to shift signal push pull maneuver, described electronics gear generator 5 is electrically connected with gear final controlling element 6, described gear final controlling element 6 is connected with an end of described drag-line heart yearn 3 and drag-line overcoat 4 respectively, the other end of described drag-line heart yearn 3 is connected with described gear rocking arm 2, and the other end of described drag-line overcoat 4 is connected with case of transmission 1.
From such scheme as can be seen, export shift signals to gear final controlling element 6 by electronics gear generator 5, gear final controlling element 6 is according to the shift signal output action signal that receives, electronics gear generator 5 needs only with gear final controlling element 6 and is electrically connected, and gear final controlling element 6 is to realize gear operation transmission by drag-line, therefore gear final controlling element 6 is free to arrange the position that excess room is arranged onboard, thereby reduces taking up room of gearshift, is convenient to the installation of gearshift.
In an embodiment of the present utility model, the wireless connections that electrically connect as of described electronics gear generator 5 and gear final controlling element 6 perhaps connect by the CAN bus.When the electrically connect as wireless connections of described electronics gear generator 5 with gear final controlling element 6, a radio transmitters can be set in electronics gear generator 5, send by the radio transmitters shift signal, a wireless receiver is set in gear final controlling element 6, receive described shift signal by wireless receiver, can also send feedback signal to electronics gear generator 5 by wireless receiver certainly.
In an embodiment of the present utility model, described gear final controlling element 6 comprises the housing 61 with first cavity 611 and the driver element that is positioned at first cavity 611, the gear reduction unit that is connected with the output shaft of described driver element, bearing unit and be used for to rotatablely move and be converted to straight-line converting unit, one end of described converting unit is fixedly connected and be connected with the output terminal of gear reduction unit by described bearing unit and housing 61, the other end of described converting unit is connected with an end of described drag-line heart yearn 3, and described housing 61 is connected with an end of drag-line overcoat 4.In concrete enforcement, described driver element is specially direct current generator 62, can produce clockwise and be rotated counterclockwise.As shown in Figure 2, described gear reduction unit is fixed axis gear group 63, the external toothing of fixed axis gear group 63 is fixed on the inwall of housing 61, the output shaft of fixed axis gear group 63 is connected with converting unit, as shown in Figure 3, described gear reduction unit is planetary gear set 64, and the output shaft of direct current generator 62 is connected with the sun gear of planetary gear set 64, the planet carrier of planetary gear set 64 is connected with converting unit, and planetary gear set 64 is fixedlyed connected with the inwall of housing 61 by bearing unit.By fixed axis gear group 63 or planetary gear set 64 power that the power of the high rotating speed of motor 62, low moment of torsion changes into the slow-speed of revolution, high pulling torque is exported to converting unit.
In one embodiment of the invention, as shown in Figure 2, described gear final controlling element also comprises the stroke sensor 66 for detection of converting unit straight line motion distance, described stroke sensor 66 is arranged on the inwall of housing 61, described stroke sensor 66 is positioned at the below of described converting unit, and wherein said stroke sensor 66 is contactless Hall transducer.Certainly, when described gear reduction unit is planetary gear set 64, also can use stroke sensor 66 in the described gear final controlling element 6.Certainly, when described gear reduction unit is planetary gear set 64, also can use motor rotary angle transmitter 65 in the described gear final controlling element 6.Described converting unit comprises screw rod 671 and the swivel nut 672 that cooperates with described screw rod 671, and described screw rod 671 is connected with the output terminal of fixed axis gear group 63, and an end of described swivel nut 672 is connected with an end of described drag-line heart yearn 3.Described bearing unit comprises for the clutch shaft bearing 681 of studdle 671 and doubledirection thrust bearing 682, described bearing unit also comprises second bearing 683 for the gear that supports fixed axis gear group 63, screw rod 671 just can bear forward and reverse thrust so, described clutch shaft bearing 681, second bearing 683 is fixedlyed connected with housing 61 inwalls respectively with doubledirection thrust bearing 682, described doubledirection thrust bearing 682 is arranged between described clutch shaft bearing 681 and the fixed axis gear group 63, and described doubledirection thrust bearing 682 is arranged between described clutch shaft bearing 681 and second bearing 683.When being stroke sensor 66 in the gear final controlling element 6, be in P retaining lock position such as speed changer, direct current generator 62 is just changeing, and swivel nut 672 is moved to the limit position of close screw rod 671, the direct current generator 62 that reverses then, the required number of turns of release * (1-drag-line travel efficiency) is as safe stroke.During first the installation, speed changer is placed P retaining lock position, the gearshift drag-line is the same with general gearshift drag-line to possess length-adjustable function, and drag-line installs can adjust drag-line length automatically.In use, depart from normal position in order to prevent the gear final controlling element when repeatedly carrying out, causing can't locking or release, and correction function is set.Car load loads " ON " retaining, and when the signal that electronics gear generator 5 receives is P retaining lock position signal, electronics gear generator 5 sends signal is just changeing direct current generator 62, move limit position to until the gearshift drag-line, utilize the limit stoper in the speed changer to calibrate, safe stroke is reserved in counter-rotating then, and electronics gear generator 5 these positions of record keep off initial position as P.。
In one embodiment of the invention, as shown in Figure 3, described gear final controlling element 6 also comprises motor rotary angle transmitter 65, and described motor rotary angle transmitter 65 is arranged on direct current generator 62 with respect to the end of the described output shaft the other end.When if the angle of swing of direct current generator 62 has surpassed the required corner of gearshift stroke, gear final controlling element 6 signals and carries out position correction, wherein motor rotary angle transmitter 65 is the contact-type Hall transducer, has the magnet of demarcating angle on the rotor, and the magnetic field of induction rotation obtains angle of swing.Certainly, when described gear reduction unit is fixed axis gear group 63, also can use motor rotary angle transmitter 65 in the described gear final controlling element 6.Described converting unit comprises the swivel nut 672 that screw rod 671 and described screw rod 671 cooperate, and described screw rod 671 is connected with the planet carrier of planetary gear set 64, and an end of described swivel nut 672 is connected with an end of described drag-line heart yearn 3.Described bearing unit comprises for the clutch shaft bearing 681 of studdle 671 and doubledirection thrust bearing 682, described bearing unit also comprises second bearing 683 for the planet carrier of support planetary gears group 64, and described clutch shaft bearing 681, second bearing 683 and doubledirection thrust bearing 682 are fixedlyed connected with housing 61 inwalls respectively.Described doubledirection thrust bearing 682 is arranged between described clutch shaft bearing 681 and second bearing 683.Generally speaking, motor is just changeing when referring to motor output shaft towards the dead ahead and is rotating toward the clockwise direction, the motor counter-rotating refers to towards the anti-direction rotation of positive phase inversion, screw rod 671 and swivel nut 672 should adopt clockwise thread rotary orientation so, when screw rod 671 is just changeing, swivel nut 672 moves towards screw rod 671 directions vertically, thereby by the described gear rocking arm 2 of drag-line heart yearn 3 pullings, make described gear rocking arm 2 lockings, when screw rod 671 counter-rotatings, screw rod 672 is vertically towards moving away from the direction of screw rod 671, thereby promotes described gear rocking arm 2 by drag-line heart yearn 3, makes described gear rocking arm 2 releases.During such as needs control speed changer P retaining locking and release, the displacement of speed changer upper suspension arm is the locking stroke, and the effective stroke of gearshift drag-line output terminal in running is travel efficiency divided by the drive end total kilometres.Speed changer P retaining device is positioned at the lock position, and when needing to promote the release of P retaining rocking arm, direct current generator 62 needs counter-rotating, the reduction speed ratio of the pitch * planetary gear set 64 of release rotating cycle=locking stroke ÷ gearshift drag-line travel efficiency ÷ swivel nut 672.Speed changer P retaining device is positioned at unlocked position, and when needing pulling P retaining rocking arm locking, direct current generator 62 is just changeing, and the locking rotating cycle is identical with the required number of turns of release.The rotating cycle of direct current generator 62 feeds back to electronics gear generator 5 by motor rotary angle transmitter 65, if when the angle of swing of direct current generator 62 has surpassed the required corner of gearshift stroke, electronics gear generator 5 signals and carries out position correction.
In an embodiment of the present utility model, as Fig. 2 or shown in Figure 3, described gear final controlling element 6 comprises also for sealing first cavity 611 and supports the sliding sleeve 69 of described swivel nut 682 that an end of described swivel nut 682 passes described sliding sleeve 69 and is connected with an end of described drag-line heart yearn 3.By described sliding sleeve 69 sealings first cavity 611, play the dust-tight effect, for the protection of the device that is positioned at first cavity 611.
In an embodiment of the present utility model, as Fig. 2 or shown in Figure 3, described gear final controlling element 6 also comprises be used to the rotation preventing device 11 that prevents drag-line heart yearn 3, described housing also comprises second cavity of isolating by described sliding sleeve 69 and described first cavity 611, described rotation preventing device 11 is positioned at second cavity 612, and an end of described swivel nut 672 is connected with an end of described drag-line heart yearn 3 by described rotation preventing device 11.Described gear final controlling element also comprises the guide groove 12 that is positioned at second cavity 612 and fixedlys connected with the inwall of housing 61, described rotation preventing device 11 cooperates with described guide groove 12 and can moving axially along described housing 61, because an end of described swivel nut 672 is connected with an end of described drag-line heart yearn 3 by described rotation preventing device 11, described rotation preventing device 11 cooperates with described guide groove 12 and can be along the moving axially of described housing 61, thereby guarantees described drag-line heart yearn 3 moving axially along described housing 61 in described housing 61.
The utility model also provides a kind of embodiment's vehicle, comprises above-mentioned gearshift.Export shift signals to gear final controlling element 6 by electronics gear generator 5, gear final controlling element 6 is according to the shift signal output action signal that receives, electronics gear generator 5 needs only with gear final controlling element 6 and is electrically connected, and gear final controlling element 6 is to realize gear operation transmission by drag-line, therefore gear final controlling element 6 is free to arrange the position that excess room is arranged onboard, thereby reduce taking up room of gearshift, be convenient to the installation of gearshift.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (15)
1. gearshift, it is characterized in that: described gearshift comprises the gear rocking arm that is fixed on the case of transmission, the drag-line heart yearn, be sheathed on the drag-line overcoat on the drag-line heart yearn, for generation of the electronics gear generator of shift signal and the gear final controlling element that is used for producing according to shift signal push pull maneuver, described electronics gear generator is electrically connected with the gear final controlling element, described gear final controlling element is connected with an end of described drag-line heart yearn and drag-line overcoat respectively, the other end of described drag-line heart yearn is connected with described gear rocking arm, and the other end of described drag-line overcoat is connected with case of transmission.
2. gearshift as claimed in claim 1 is characterized in that: described electronics gear generator and gear final controlling element electrically connect as wireless connections.
3. gearshift as claimed in claim 1, it is characterized in that: described electronics gear generator is connected with electrically connecting as by the CAN bus of gear final controlling element.
4. gearshift as claimed in claim 1, it is characterized in that: described gear final controlling element comprises the housing with first cavity and the driver element that is positioned at first cavity, the gear reduction unit that is connected with the output shaft of described driver element, bearing unit and be used for to rotatablely move and be converted to straight-line converting unit, one end of described converting unit is fixedly connected with housing and be connected with the output terminal of gear reduction unit by described bearing unit, the other end of described converting unit is connected with an end of described drag-line heart yearn, and described housing is connected with an end of drag-line overcoat.
5. gearshift as claimed in claim 4, it is characterized in that: described driver element is specially direct current generator.
6. gearshift as claimed in claim 5, it is characterized in that: described gear reduction unit is the fixed axis gear group, described converting unit comprises screw rod and the swivel nut that cooperates with described screw rod, described screw rod is connected with the output terminal of fixed axis gear group, and an end of described swivel nut is connected with an end of described drag-line heart yearn.
7. gearshift as claimed in claim 5, it is characterized in that: described gear reduction unit is planetary gear set, described converting unit comprises the swivel nut that screw rod and described screw rod cooperate, described screw rod is connected with the planet carrier of planetary gear set, and an end of described swivel nut is connected with an end of described drag-line heart yearn.
8. as claim 6 or 7 described gearshifts, it is characterized in that: described gear final controlling element also comprises the motor rotary angle transmitter, and described motor rotary angle transmitter is arranged on direct current generator with respect to the end of the described output shaft the other end.
9. as claim 6 or 7 described gearshifts, it is characterized in that: described gear final controlling element also comprises the stroke sensor for detection of converting unit straight line motion distance, and described stroke sensor is arranged on the inwall of housing.
10. gearshift as claimed in claim 6, it is characterized in that: described bearing unit comprises for the clutch shaft bearing of studdle and doubledirection thrust bearing, described bearing unit comprises that also described clutch shaft bearing, second bearing and doubledirection thrust bearing are fixedlyed connected with inner walls respectively for second bearing of the gear that supports the fixed axis gear group.
11. gearshift as claimed in claim 7, it is characterized in that: described bearing unit comprises for the clutch shaft bearing of studdle and doubledirection thrust bearing, described bearing unit also comprises second bearing for the planet carrier of support planetary gears group, and described clutch shaft bearing, second bearing and doubledirection thrust bearing are fixedlyed connected with inner walls respectively.
12. as claim 6 or 7 described gearshifts, it is characterized in that: described gear final controlling element comprises also for sealing first cavity and supports the sliding sleeve of described swivel nut that one end of described swivel nut passes described sliding sleeve and is connected with an end of described drag-line heart yearn.
13. gearshift as claimed in claim 12, it is characterized in that: described gear final controlling element also comprises be used to the rotation preventing device that prevents the drag-line heart yearn, described housing also comprises second cavity by described sliding sleeve and described first cavity isolation, described rotation preventing device is positioned at second cavity, and an end of described swivel nut is connected with an end of described drag-line heart yearn by described rotation preventing device.
14. gearshift as claimed in claim 13 is characterized in that: described gear final controlling element also comprises the guide groove that is positioned at second cavity and fixedlys connected with the inwall of housing, and described rotation preventing device cooperates with described guide groove and can moving axially along described housing.
15. a vehicle is characterized in that: comprise any described gearshift as claim 1-14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320149868 CN203202187U (en) | 2013-03-29 | 2013-03-29 | Gear shifting device and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320149868 CN203202187U (en) | 2013-03-29 | 2013-03-29 | Gear shifting device and vehicle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203202187U true CN203202187U (en) | 2013-09-18 |
Family
ID=49146296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320149868 Expired - Lifetime CN203202187U (en) | 2013-03-29 | 2013-03-29 | Gear shifting device and vehicle with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203202187U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546108A (en) * | 2015-12-30 | 2016-05-04 | 广州汽车集团股份有限公司 | Shift-by-wire actuator and shift-by-wire device |
| CN105840812A (en) * | 2016-05-23 | 2016-08-10 | 理原车辆技术研发（苏州）有限公司 | Electronic gear shifting device for automobiles and control method thereof |
| CN108799491A (en) * | 2018-07-26 | 2018-11-13 | 中国第汽车股份有限公司 | It is a kind of that P operating mechanisms are promptly entered based on electric gear change system |
-
2013
- 2013-03-29 CN CN 201320149868 patent/CN203202187U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546108A (en) * | 2015-12-30 | 2016-05-04 | 广州汽车集团股份有限公司 | Shift-by-wire actuator and shift-by-wire device |
| CN105840812A (en) * | 2016-05-23 | 2016-08-10 | 理原车辆技术研发（苏州）有限公司 | Electronic gear shifting device for automobiles and control method thereof |
| CN108799491A (en) * | 2018-07-26 | 2018-11-13 | 中国第汽车股份有限公司 | It is a kind of that P operating mechanisms are promptly entered based on electric gear change system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130918 |