CN104006157B - A kind of automotive transmission halting mechanism - Google Patents
A kind of automotive transmission halting mechanism Download PDFInfo
- Publication number
- CN104006157B CN104006157B CN201410234835.3A CN201410234835A CN104006157B CN 104006157 B CN104006157 B CN 104006157B CN 201410234835 A CN201410234835 A CN 201410234835A CN 104006157 B CN104006157 B CN 104006157B
- Authority
- CN
- China
- Prior art keywords
- tooth
- shift fork
- parking
- park
- grip assembly
- 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.)
- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 43
- 230000001360 synchronised effect Effects 0.000 claims abstract description 15
- 210000000078 claw Anatomy 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- PWPJGUXAGUPAHP-UHFFFAOYSA-N lufenuron Chemical compound C1=C(Cl)C(OC(F)(F)C(C(F)(F)F)F)=CC(Cl)=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F PWPJGUXAGUPAHP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3425—Parking lock mechanisms or brakes in the transmission characterised by pawls or wheels
- F16H63/3433—Details of latch mechanisms, e.g. for keeping pawls out of engagement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
A kind of automotive transmission halting mechanism, including shift fork axle, shift fork, park tooth gear teeth grip assembly, tooth hub, parking tooth plate and synchronous ring, described shift fork axle is connected with parking control mechanism, described shift fork is installed sleeve pipe by shift fork and claw forms, described shift fork is installed sleeve pipe and is sleeved on shift fork axle with gap fiting mode, described claw is equipped with park tooth gear teeth grip assembly, described park tooth gear teeth grip assembly is sleeved on tooth hub, park tooth gear teeth grip assembly mates with the parking tooth plate being fixed on case of transmission bottom surface, described parking tooth plate is positioned at the left side of park tooth gear teeth grip assembly, described tooth hub is fixed on the power transmission shaft of variator, described synchronous ring is arranged on the right side of park tooth gear teeth grip assembly, synchronous ring is mated with the travelling gear of other gear of variator.The present invention has the feature of simple in construction, dependable performance, not only reduces parts manufacturing cost, and avoids case of transmission and damage, it is ensured that vehicle properly functioning.
Description
Technical field
The present invention relates to a kind of Automotive parking mechanism, a kind of halting mechanism being arranged on automatic gearbox, belong to automobile technical field.
Background technology
The effect of Automotive parking mechanism is exactly when stopping, to one resistance of vehicle so that it is keep resting state.Parking braking, principal mode is the P shelves in parking brake or automatic transmission, and it reaches to stop on slope road by the way of locking power transmission shaft or trailing wheel and does not slip the purpose of car.
The Chinese invention patent document of Publication No. CN1683811A provides a kind of halting mechanism for variator, and it includes case of transmission, the parking gear being fixed on case of transmission and engaging mechanism such as synchromesh mechanism.This engaging mechanism includes branch sleeve, for engaging with parking gear when branch sleeve moves axially towards parking gear, and makes transmission output member be held non-rotatably within park lock state.Owing to the parking gear of this halting mechanism is fixed on described case of transmission, its present position is at the strong point of power transmission shaft, active force that in power transmission process, power transmission shaft produces and the restraint that parking gear produces during parking are all undertaken by case of transmission same position, easily cause housing failure, cause TRANS PROGRAM；Additionally, the synchromesh mechanism of this halting mechanism uses flywheel sychronising device, parking gear is arranged in synchronizer side, opposite side in synchronizer arranges power transmitting gear, during parking, synchronizer is to parking gear side shifting, parking gear is made to engage with synchronizer, during normal vehicle operation, synchronizer is moved to opposite side, power transmitting gear is made to engage with synchronizer, parking braking is realized owing to its synchronizer is dependent on frictional force, parking effect can become worse and worse along with the abrasion of corresponding parts rubbing surface, and for realizing above-mentioned functions, halting mechanism structure is complicated, element precision is required higher, cost increases accordingly.
Summary of the invention
Present invention aims to the drawback of prior art, it is provided that a kind of simple in construction, dependable performance, parts manufacturing cost can be reduced, the automotive transmission halting mechanism that case of transmission damages can be avoided again.
Problem of the present invention realizes with following technical proposals:
A kind of automotive transmission halting mechanism, described automotive transmission halting mechanism includes shift fork axle, shift fork, park tooth gear teeth grip assembly, tooth hub, parking tooth plate and synchronous ring, described shift fork axle is connected with parking control mechanism, described shift fork is installed sleeve pipe by shift fork and claw forms, described shift fork is installed sleeve pipe and is sleeved on shift fork axle with gap fiting mode, described claw is equipped with park tooth gear teeth grip assembly, described park tooth gear teeth grip assembly is sleeved on tooth hub, park tooth gear teeth grip assembly mates with the parking tooth plate being fixed on case of transmission bottom surface, described parking tooth plate is positioned at the left side of park tooth gear teeth grip assembly, described tooth hub is fixed on the power transmission shaft of variator, described synchronous ring is arranged on the right side of park tooth gear teeth grip assembly, synchronous ring is mated with the travelling gear of other gear of variator.
Above-mentioned automotive transmission halting mechanism, described shift fork axle is set with compression spring, shift fork axle also sets up spring shoulder block, and described compression spring is arranged in spring shoulder block and shift fork is installed between sleeve pipe.
Above-mentioned automotive transmission halting mechanism, described shift fork axle assembles shift fork backing pin, and described shift fork backing pin is installed sleeve pipe with shift fork and mated.
Above-mentioned automotive transmission halting mechanism, it is characterized in that, described park tooth gear teeth grip assembly is integral type structure, overlapped two parts by parking gear and tooth to form, at parking gear periphery, the parking gear engaging tooth that coordinates with parking tooth plate is set, described parking gear engaging tooth front end be wedge bond face structure, rear end be locking planar structure.
Above-mentioned automotive transmission halting mechanism, the tooth set outer wall of described park tooth gear teeth grip assembly is provided with the buckling groove coordinated with shift fork claw, is provided with the tooth set internal spline coordinated with tooth hub on tooth set inwall.
Above-mentioned automotive transmission halting mechanism, described tooth hub outer wall is provided with the tooth hub external splines that the tooth set internal spline with gear teeth grip assembly coordinates, is provided with the tooth hub internal spline coordinated with variator axle on tooth hub inwall.
Above-mentioned automotive transmission halting mechanism, on described parking tooth plate, the quantity of park tooth is no less than three, each of which park tooth front end be conical engagement face structure, rear end be locking planar structure.
The present invention is the halting mechanism mated with automatic mechanical transmission, and parking tooth plate is fixed on automatic speed variator casing bottom surface by it so that it is the strong point of installation site and power transmission shaft separates, it is to avoid case of transmission damages the TRANS PROGRAM caused；It is parking position on the left of the park tooth gear teeth grip assembly of the present invention, right side is the synchronous ring mated with power transmitting gear, when driver moves to the left according to vehicle travel conditions manipulation park tooth gear teeth grip assembly, parking gear engages with parking tooth plate, vehicle is in park lock state, when park tooth gear teeth grip assembly moves to the right, being engaged by other gear travelling gear of synchronous ring and variator, vehicle switches to the normal operation range of variator；The parking gear engaging tooth of the present invention is wedge bond face structure with the front end of park tooth on parking tooth plate, ensure that parking gear engaging tooth engages with the smooth of park tooth, simultaneously under higher speed during parking, owing to parking gear cannot engage with park tooth, pyramidal structure can ensure that parking gear exits smoothly, wall impact failure parking gear.The present invention controls parking gear engaging tooth and the engagement of park tooth by coordinating of shift fork axle, shift fork, compression spring and shift fork backing pin, owing to shift fork axle, shift fork, compression spring and shift fork backing pin assembly precision are less demanding, therefore reduce the difficulty of processing of above-mentioned parts.In a word, the present invention has the feature of simple in construction, dependable performance, and it not only reduces parts manufacturing cost, and avoids case of transmission and damage, it is ensured that vehicle properly functioning.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is present configuration schematic diagram；
Fig. 2 is the structural blast figure of Fig. 1；
Fig. 3 is shift fork axle, shift fork, compression spring, shift fork backing pin structure and assembly relation schematic diagram；
Fig. 4 is park tooth gear teeth grip assembly structural representation；
Fig. 5 is park tooth plate structure schematic diagram；
Fig. 6 is tooth hub structure schematic diagram.
In figure, each list of reference numerals is: 1, shift fork axle, 1-1, spring shoulder block, 2, compression spring
, 3, shift fork backing pin, 4, park tooth gear teeth grip assembly, 4-1, parking gear, 4-1-1, parking gear engaging tooth, 4-2, tooth set, 4-2-1, buckling groove, 4-2-2, tooth set internal spline, 5, parking tooth plate, 5-1, park tooth, 6, case of transmission, 7, tooth hub, 7-1, tooth hub internal spline, 7-2, tooth hub external splines, 8, shift fork, sleeve pipe installed by 8-1, shift fork, 8-2, claw, and 9, synchronous ring.
Detailed description of the invention
Referring to Fig. 1, Fig. 2, Fig. 3, the present invention includes shift fork axle 1, shift fork 8, park tooth gear teeth grip assembly 4, tooth hub 7, parking tooth plate 5 and synchronous ring 9, described shift fork axle 1 is connected with parking control mechanism, described shift fork 8 is installed sleeve pipe 8-1 and claw 8-2 by shift fork and is formed, described shift fork is installed sleeve pipe 8-2 and is sleeved on shift fork axle 1 with gap fiting mode, rolling or sliding bearing can also be set up, to improve the smoothness that shift fork moves.Described claw 8-2 is equipped with park tooth gear teeth grip assembly 4, described park tooth gear teeth grip assembly 4 is sleeved on tooth hub 7, they mate with the parking tooth plate 5 being fixed on case of transmission 6 bottom surface, described parking tooth plate 5 is positioned at the left side of park tooth gear teeth grip assembly 4, described tooth hub 7 is fixed on the power transmission shaft of variator, described synchronous ring 9 is arranged on the right side of park tooth gear teeth grip assembly 4, and it mates with the travelling gear of other gear of variator.
Referring to Fig. 1, Fig. 2, Fig. 3, the shift fork axle 1 of the present invention arranges spring shoulder block 1-1, is set with compression spring 2 on shift fork axle 1, and described compression spring 2 is arranged in spring shoulder block 1-1 and shift fork is installed between sleeve pipe 8-1；Assembling shift fork backing pin 3 on shift fork axle 1, described shift fork backing pin 3 is installed sleeve pipe 8-1 with shift fork and is mated.
Referring to Fig. 1, Fig. 2, Fig. 4, the park tooth gear teeth grip assembly 4 of the present invention is overlapped 4-2 two parts by parking gear 4-1 and tooth and forms, they are integral type structure, the parking gear engaging tooth 4-1 coordinated with parking tooth plate 5 is set at parking gear 4-1 periphery, described parking gear engaging tooth 4-1 front end is wedge bond face structure, and its rear end is locking planar structure；Described tooth set 4-2 outer wall is provided with the buckling groove 4-2-1 coordinated with shift fork claw, is provided with the tooth set internal spline 4-2-2 coordinated with tooth hub 7 on tooth set 4-2 inwall.
Referring to Fig. 1, Fig. 2, Fig. 6, tooth hub 7 outer wall of the present invention is provided with the tooth hub external splines 7-2 that the tooth set internal spline 4-2-2 with gear teeth grip assembly 4 coordinates, and is provided with the tooth hub internal spline 7-1 coordinated with variator axle on tooth hub 7 inwall.
Referring to Fig. 1, Fig. 2, Fig. 5, on the parking tooth plate 5 of the present invention, the quantity of park tooth 5-1 is no less than three, can the most suitably adjust the number of teeth, and each of which park tooth 5-1 front end is conical engagement face structure, and park tooth rear end is locking planar structure.
Referring to Fig. 1～Fig. 6, shift fork axle 1 is connected by the present invention with parking control mechanism, the shift fork of shift fork 8 is installed sleeve pipe 8-1 and compression spring 2 is sleeved on shift fork axle 1, carry out spacing by shift fork backing pin 3, when move to the left by parking tooth plate 5 direction for parking control mechanism shift fork axle 1, shift fork axle 1 promotes compression spring 2 and shift fork 8 to move to the left by spring shoulder block 1-1, shift fork 8 is stirred park tooth gear teeth grip assembly 4 and is moved, when the tooth top of parking gear engaging tooth 4-1-1 and the teeth groove of parking tooth plate 5 to time corresponding parking gear engaging tooth 4-1-1 enters in the teeth groove of parking tooth plate 5 smoothly, coordinated with parking tooth plate 5 rear end locking plane from parking gear engaging tooth 4-1-1 rear end locking plane and realize parking braking；When parking gear engaging tooth 4-1-1 tooth top and parking tooth plate 5 teeth groove not to the time in of corresponding parking gear-tooth grip assembly 4 can not engage with parking tooth plate 5, now, compression spring 2 on shift fork axle 1 is compressed, storage energy, when vehicle is moved forward or rearward, park tooth gear teeth grip assembly 4 is with one angle of drive axis, the tooth top of parking gear engaging tooth 4-1-1 and the teeth groove of parking tooth plate 5 to time corresponding compression spring 2 energy discharges, shift fork 8 moves to parking tooth plate 5 direction on the left of continuing, parking gear engaging tooth 4-1-1 is made to enter in the teeth groove of parking tooth plate 5, reach the purpose of parking braking.In like manner, according to the step contrary with aforesaid operations, shift fork 8 promote park tooth gear teeth grip assembly 4 to move to the right, can realize releasing parking lock state, park tooth gear teeth grip assembly 4 drives synchronous ring 9 to engage with the travelling gear of other gear of variator simultaneously, and vehicle enters normal transport condition.
Claims (6)
- null1. an automotive transmission halting mechanism，It is characterized in that，Described automotive transmission halting mechanism includes shift fork axle (1)、Shift fork (8)、Park tooth gear teeth grip assembly (4)、Tooth hub (7)、Parking tooth plate (5) and synchronous ring (9)，Described shift fork axle (1) is connected with parking control mechanism，Described shift fork (8) is installed sleeve pipe (8-1) by shift fork and claw (8-2) forms，Described shift fork is installed sleeve pipe (8-1) and is sleeved on shift fork axle (1) with gap fiting mode，Described claw (8-2) is equipped with park tooth gear teeth grip assembly (4)，Described park tooth gear teeth grip assembly (4) is sleeved on tooth hub (7)，Park tooth gear teeth grip assembly mates with the parking tooth plate (5) being fixed on case of transmission (6) bottom surface，Described parking tooth plate (5) is positioned at the left side of park tooth gear teeth grip assembly (4)，Described tooth hub (7) is fixed on the power transmission shaft of variator，Described synchronous ring (9) is arranged on the right side of park tooth gear teeth grip assembly (4)，Synchronous ring is mated with the travelling gear of other gear of variator；Being set with compression spring (2) on described shift fork axle (1), shift fork axle also sets up spring shoulder block (1-1), described compression spring (2) is arranged in spring shoulder block (1-1) and shift fork is installed between sleeve pipe (8-1).
- A kind of automotive transmission halting mechanism the most according to claim 1, is characterized in that, described shift fork axle (1) upper assembling shift fork backing pin (3), described shift fork backing pin (3) is mated with shift fork installation sleeve pipe (8-1).
- A kind of automotive transmission halting mechanism the most according to claim 2, it is characterized in that, described park tooth gear teeth grip assembly (4) is integral type structure, it is made up of parking gear (4-1) and tooth set (4-2) two parts, at parking gear (4-1) periphery, the parking gear engaging tooth (4-1-1) that coordinates with parking tooth plate (5) is set, described parking gear engaging tooth (4-1-1) front end be wedge bond face structure, rear end be locking planar structure.
- A kind of automotive transmission halting mechanism the most according to claim 3, it is characterized in that, tooth set (4-2) outer wall of described park tooth gear teeth grip assembly (4) is provided with the buckling groove (4-2-1) coordinated with shift fork claw (8-2), is provided with tooth set internal spline (4-2-2) coordinated with tooth hub (7) on tooth set (4-2) inwall.
- A kind of automotive transmission halting mechanism the most according to claim 4, it is characterized in that, described tooth hub (7) outer wall is provided with tooth hub external splines (7-2) that tooth set internal spline (4-2-2) with park tooth gear teeth grip assembly (4) coordinates, and is provided with tooth hub internal spline (7-1) coordinated with variator axle on tooth hub (7) inwall.
- A kind of automotive transmission halting mechanism the most according to claim 5, it is characterized in that, the quantity of the upper park tooth (5-1) of described parking tooth plate (5) no less than three, each of which park tooth (5-1) front end be conical engagement face structure, rear end be locking planar structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410234835.3A CN104006157B (en) | 2014-05-30 | 2014-05-30 | A kind of automotive transmission halting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410234835.3A CN104006157B (en) | 2014-05-30 | 2014-05-30 | A kind of automotive transmission halting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104006157A CN104006157A (en) | 2014-08-27 |
| CN104006157B true CN104006157B (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410234835.3A Expired - Fee Related CN104006157B (en) | 2014-05-30 | 2014-05-30 | A kind of automotive transmission halting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104006157B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989805A (en) * | 2015-07-02 | 2015-10-21 | 李广连 | Locking bar mechanism for gear stopping |
| TWI598523B (en) * | 2016-10-14 | 2017-09-11 | 財團法人工業技術研究院 | Axial parking mechanism |
| CN106763535A (en) * | 2016-12-28 | 2017-05-31 | 綦江齿轮传动有限公司 | A kind of automotive transmission |
| CN107300016A (en) * | 2017-07-03 | 2017-10-27 | 格特拉克（江西）传动系统有限公司 | A kind of automatic transmission gear shift fork with decoupling device |
| CN107542924B (en) * | 2017-08-30 | 2019-06-04 | 北京新能源汽车股份有限公司 | Parking mechanism and vehicle |
| CN107559419B (en) * | 2017-08-30 | 2019-07-09 | 北京新能源汽车股份有限公司 | Parking mechanism |
| CN107387750B (en) * | 2017-08-30 | 2019-06-04 | 北京新能源汽车股份有限公司 | Parking mechanism and vehicle |
| CN107524803B (en) * | 2017-08-30 | 2019-06-04 | 北京新能源汽车股份有限公司 | Parking mechanism and vehicle |
| CN107327518B (en) * | 2017-08-30 | 2019-11-22 | 北京新能源汽车股份有限公司 | Halting mechanism and vehicle |
| CN110001607B (en) * | 2019-04-02 | 2024-07-19 | 中国煤炭科工集团太原研究院有限公司 | Emergency braking device for trackless rubber-tyred vehicle under coal mine |
| WO2020211039A1 (en) * | 2019-04-18 | 2020-10-22 | 舍弗勒技术股份两合公司 | Parking mechanism for realizing parking function by shift fork shaft driving, and dual-clutch transmission |
| TWI701397B (en) | 2019-07-30 | 2020-08-11 | 財團法人工業技術研究院 | Adjusting device, automatic adjusting system and adjusting mehtod for bevel gear |
| CN110778713A (en) * | 2019-12-10 | 2020-02-11 | 重庆青山工业有限责任公司 | Transmission gear-shifting parking actuating mechanism |
| DE102020123613A1 (en) | 2020-09-10 | 2022-03-10 | Schaeffler Technologies AG & Co. KG | Axially acting parking lock mechanism |
| US11381157B1 (en) | 2020-12-10 | 2022-07-05 | Industrial Technology Research Institute | Motor drive and method for reducing dead band of motor drive |
| CN112780768A (en) * | 2021-01-28 | 2021-05-11 | 麦格纳动力总成(江西)有限公司 | Automatic gearbox's parking mechanism and automatic gearbox |
| CN115405690B (en) * | 2021-05-27 | 2023-07-21 | 长城汽车股份有限公司 | Parking mechanism and vehicle with same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4089394A (en) * | 1976-12-13 | 1978-05-16 | Allis-Chalmers Corporation | Park lock and gear shift for a vehicle transmission |
| US4310081A (en) * | 1979-12-26 | 1982-01-12 | Allis-Chalmers Corporation | Park lock and range shift control |
| CN1683811A (en) * | 2004-04-15 | 2005-10-19 | 日产自动车株式会社 | Parking mechanism for transmission |
| EP2551558A1 (en) * | 2012-04-11 | 2013-01-30 | Kongsberg Automotive AB | Park-lock device |
| CN103423409A (en) * | 2012-05-24 | 2013-12-04 | 姜华 | Two-speed transmission in all-electric automobiles |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07144616A (en) * | 1993-11-22 | 1995-06-06 | Aichi Mach Ind Co Ltd | Park locking device for transmission |
-
2014
- 2014-05-30 CN CN201410234835.3A patent/CN104006157B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4089394A (en) * | 1976-12-13 | 1978-05-16 | Allis-Chalmers Corporation | Park lock and gear shift for a vehicle transmission |
| US4310081A (en) * | 1979-12-26 | 1982-01-12 | Allis-Chalmers Corporation | Park lock and range shift control |
| CN1683811A (en) * | 2004-04-15 | 2005-10-19 | 日产自动车株式会社 | Parking mechanism for transmission |
| EP2551558A1 (en) * | 2012-04-11 | 2013-01-30 | Kongsberg Automotive AB | Park-lock device |
| CN103423409A (en) * | 2012-05-24 | 2013-12-04 | 姜华 | Two-speed transmission in all-electric automobiles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104006157A (en) | 2014-08-27 |
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Granted publication date: 20160831 |