CN111664243A - Manual gear shifting manipulator for hard rod control system of heavy-duty car - Google Patents
Manual gear shifting manipulator for hard rod control system of heavy-duty car Download PDFInfo
- Publication number
- CN111664243A CN111664243A CN202010667834.3A CN202010667834A CN111664243A CN 111664243 A CN111664243 A CN 111664243A CN 202010667834 A CN202010667834 A CN 202010667834A CN 111664243 A CN111664243 A CN 111664243A
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- Prior art keywords
- shifting
- gear
- main shaft
- gear selecting
- manipulator
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Classifications
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- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/0278—Constructional features of the selector lever, e.g. grip parts, mounting or manufacturing
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- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/0208—Selector apparatus with means for suppression of vibrations or reduction of noise
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- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H2059/026—Details or special features of the selector casing or lever support
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- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/0278—Constructional features of the selector lever, e.g. grip parts, mounting or manufacturing
- F16H2059/0282—Lever handles with lock mechanisms, e.g. for allowing selection of reverse gear or releasing lever from park position
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- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H2059/0295—Selector apparatus with mechanisms to return lever to neutral or datum position, e.g. by return springs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
Abstract
The invention relates to a manual transmission manipulator for a hard rod control system of a heavy-duty car, which is characterized in that: the speed change manipulator comprises a disc-shaped base and a gear selecting and shifting combined mechanism fixedly connected with the disc-shaped base, the gear selecting and shifting combined mechanism is connected with an operating lever of an automobile, the gear selecting and shifting combined mechanism is operated by the operating lever to realize gear selecting or shifting, the gear selecting and shifting combined mechanism comprises a gear selecting and shifting rocker arm, a main shaft, an auxiliary shaft and a fixed seat, a cross shaft support is formed by the main shaft and the auxiliary shaft, the gear selecting and shifting rocker arm moves forwards and backwards to realize gear shifting, the gear selecting and shifting rocker arm moves leftwards and rightwards to realize gear selecting and is provided with a return torsion spring to realize a neutral return function, and a positioning spring is arranged. The invention initiates single-arm double positioning, replaces the traditional steel ball support by a cross shaft structure, has the function of automatically positioning the original position of the operating rod and the function of resetting after gear shifting, and provides autonomous assistance for gear shifting movement.
Description
Technical Field
The invention relates to a manual gear shift control system for an automobile, in particular to a manual gear shift controller for a hard rod control system of a heavy automobile, which is suitable for the manual gear shift control system of the heavy automobile.
Background
The hard rod type automobile speed changing manipulator is one of the most important parts in automobile, especially heavy automobile speed changing system, and in order to make the driver easy to select and shift and reduce fatigue strength of the driver, the clearer the gear shifting feeling of the speed changing manipulator is, the better the gear shifting feeling of the speed changing manipulator is, the gear shifting can be obviously felt to be in place each time, the handle end can be fixed in the neutral position when the neutral position is available, and the handle can not shift forwards and backwards. At present, hard rod speed change operators adopted by heavy-duty automobiles at home and abroad have no neutral return function, and the operating rod shakes to generate noise when an engine is in an idling state, so that driving comfort is directly influenced. Meanwhile, the manipulator of the ball head type structure commonly adopted by heavy-duty automobiles is easy to shake the control lever due to the assembly clearance, and is easy to enter dust to cause abrasion, poor in working effect and low in control comfort level.
Disclosure of Invention
The invention aims to solve the defects of the prior art, designs a manual speed change manipulator for a hard lever control system of a heavy-duty car, adopts a single-arm output tangent design, a bidirectional movement and a bidirectional positioning design, and has neutral position return and gear shift positioning functions, so that the manual speed change manipulator can effectively improve the operation hand feeling of a driver, reduce the driving fatigue and effectively prevent the problem of shaking of the control lever in the running process of the car.
The invention is realized by the following steps: the utility model provides a heavy-duty car hard lever operating system arranges variable speed manipulator with hand which characterized in that: the speed change manipulator comprises a disc-shaped base and a gear selecting and shifting combination mechanism fixedly connected with the disc-shaped base, the gear selecting and shifting combination mechanism is connected with an operating lever of an automobile, the gear selecting and shifting combination mechanism is operated by the operating lever to realize gear selecting or shifting action, the gear selecting and shifting combination mechanism comprises a gear selecting and shifting rocker arm, a main shaft, an auxiliary shaft and a fixed seat, the gear selecting and shifting rocker arm is of an up-and-down structure, the upper part of the gear selecting and shifting rocker arm is fastened with the operating lever of the automobile, the lower part of the gear selecting and shifting rocker arm is of a four-way frame structure, one way of the two ways is a channel of the main shaft, the other way is a channel of the auxiliary shaft, meanwhile, the auxiliary shaft and the main shaft form a cross shaft structure, two ports of the channel for the auxiliary shaft on the gear selecting and shifting rocker arm are respectively provided with auxiliary shaft bearings, the gear shifting action is realized through the relative rotation displacement of the bearing of the fixed seat and the fixed seat, and the fixed seat is horizontally fixed on the disk-shaped engine base.
The main shaft is provided with a middle neutral position groove at a position between the gear selecting and shifting rocker arm and the fixed seat, a positioning spring is fixedly arranged at a corresponding position of the disk-shaped base, the middle section of the positioning spring is of a bending structure capable of generating elastic deformation, and the top end of the positioning spring is provided with an arc-shaped bulge and matched with the middle neutral position groove on the main shaft in a modeling manner. When the variable speed manipulator is positioned in a neutral position, the arc-shaped bulge at the top end of the positioning spring is tightly meshed with the middle neutral position groove on the main shaft when the variable speed manipulator is positioned in the neutral position, so that the variable speed manipulator and the main shaft are positioned relative to the circumferential position, and the neutral position positioning function is realized.
The main shaft passes the tip of selecting gear shift rocking arm one side and is equipped with the main shaft and stretches out the arm, the main shaft stretch out the arm and be L font and buckle, wherein the L font adopts the bolt fastening to be in the tip of main shaft on one side, the another side stretches out the back tip of selecting the gear shift rocking arm and is equipped with cylindrical fixed pin, the one end order cover that stretches out the gear shift rocking arm in the corresponding one side of countershaft is equipped with rocking arm and return torsional spring, rocking arm stretch out the arm with the main shaft and stretch out the arm syntropy to with countershaft fixed connection, drive its rotation displacement along with it by the rotation of countershaft, its tip and cylindrical fixed pin syntropy are equipped with cylindrical group round pin, the both ends head extension of return torsional spring, will group round pin and fixed pin order press from both ends between the head, wherein group.
When the speed change manipulator performs forward gear shifting motion, the gear selecting and shifting rocker arm drives the spindle to rotate, the positioning spring is pressed downwards through the side wall of the middle neutral position groove, the middle section of the positioning spring is bent into an arc shape to deform, the arc-shaped bulge at the top end of the positioning spring is separated from the middle neutral position groove on the spindle, when the gear shifting is in place, the arc-shaped bulge at the top end of the positioning spring stops at the corresponding slope bottom on the outer side of the middle neutral position groove on the spindle, and meanwhile, under the elastic force generated by the positioning spring, assistance is generated for the gear shifting motion; when the speed change manipulator does backward gear shifting movement, the process is opposite to the forward movement process.
When the variable speed controller does left or right gear selecting movement, the gear selecting and shifting rocker arm drives the auxiliary shaft to rotate, the shifting pin arranged on the rocker arm extending arm rotates along with the rotation of the auxiliary shaft, the fixed pin and the torsion spring arranged on the main shaft extending arm are matched with each other, the return torsion spring is opened by the mutual position change of the shifting pin and the fixed pin, the return torsion spring generates elastic deformation, and the return force for recovering the elastic deformation is generated to position the relative circumferential position, so that the return function is realized.
The invention has the beneficial effects that: the invention is originated at home and abroad with tangent single-arm output, realizes bidirectional movement and bidirectional positioning, has the functions of automatically positioning the original position of the operating lever and resetting after gear shifting, provides autonomous assistance for gear shifting movement, and has flexible, firm and durable operation. The invention uses the cross axle structure support to replace the design of the steel ball support in the prior art, realizes the complete cutting of the movement in two crossed directions of gear selection and gear shifting on the structure, can adapt to various vehicle types, can be applied to a high-performance air bag shock-proof cab, realizes the vibration of a damping control lever, can effectively improve the operation hand feeling of a driver, and reduces the driving fatigue.
Drawings
Fig. 1 is a schematic view of the overall construction of the shift operator of the present invention.
Fig. 2 is a schematic structural view of a gear selecting and shifting combination mechanism of the gear shifting manipulator of the invention.
Fig. 3 is a schematic cross-sectional view of the shift selection assembly of the transmission operator of the present invention.
FIG. 4 is a schematic diagram showing the positional relationship of the components of the shift selection and combination mechanism of the transmission operator during forward shifting.
Fig. 5 is a partially enlarged view of a portion a in fig. 4.
FIG. 6 is a schematic diagram showing the positional relationship of the components of the shift selection and combination mechanism of the transmission operator performing a backward shift movement.
Fig. 7 is a partially enlarged view of a portion B in fig. 6.
Fig. 8 is a schematic diagram showing the positional relationship of the components of the gear selecting and shifting combination mechanism of the gear shifting controller of the present invention during the leftward gear selecting movement.
Fig. 9 is a schematic diagram showing the positional relationship of the components of the gear selecting and shifting combination mechanism of the gear shifting controller of the present invention during a rightward gear selecting movement.
In the figure: 1. a gear selecting and shifting rocker arm; 2. A main shaft; 3. A counter shaft; 4. A fixed seat; 5. A disc-shaped base; 6. A fixed seat bearing; 7. A counter shaft bearing; 8. A positioning spring; 9. Pulling a pin; 10. A fixing pin; 11. A return torsion spring; 12. A middle neutral position groove; 13. A spindle extension arm; 14. The rocker arm extends out of the arm.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
According to the attached drawings 1-9, the invention relates to a manual gear shifting manipulator for a hard lever control system of a heavy-duty car, which comprises a disc-shaped base 5 and a gear selecting and shifting combined mechanism fixedly connected with the disc-shaped base 5, wherein the disc-shaped base 5 is fixed on a cab bottom plate of the car, the gear selecting and shifting combined mechanism is connected with a control lever of the car, and the gear selecting and shifting combined mechanism is operated by the control lever to realize gear selecting or gear shifting operation.
The gear selecting and shifting combined mechanism comprises a gear selecting and shifting rocker arm 1, a main shaft 2, an auxiliary shaft 3 and a fixed seat 4. The gear selecting and shifting rocker arm 1 is of an upper-lower structure, the upper portion of the gear selecting and shifting rocker arm is of a sleeve structure connected with an operating lever of an automobile, fastening nuts are arranged on the side edges of the gear selecting and shifting rocker arm 1 to enable the operating lever to be fixedly connected with the gear selecting and shifting rocker arm, the lower portion of the gear selecting and shifting rocker arm is of a four-way frame structure, one way of the four-way frame structure is a channel of the main shaft 2, the other way of the four-way frame structure is a channel of the auxiliary. Two ports of a channel for the auxiliary shaft 3 on the gear selecting and shifting rocker arm 1 are respectively provided with an auxiliary shaft bearing 7, and the auxiliary shaft 3 realizes relative rotation displacement with the gear selecting and shifting rocker arm 1 through the auxiliary shaft bearing 7. The other end of the main shaft 2 is located on the inner side of the fixing seat 4 and is fixedly connected with an inner ring of a fixing seat bearing 6 arranged on the inner side of the fixing seat 4, and relative rotation displacement between the main shaft and the fixing seat 4 is achieved through the fixing seat bearing 6. The fixed seat 4 is horizontally fixed on the disc-shaped engine base 5.
The main shaft 2 is provided with a middle neutral position groove 12 at a position between the gear selecting and shifting rocker arm 1 and the fixed seat 4, a positioning spring 8 is arranged at a corresponding position of the disc-shaped base 5, one end of the positioning spring 8 is of a horizontal structure and is provided with a bolt hole for fixedly connecting with the disc-shaped base 5, the rest of the positioning spring is of a bending structure, the bending arc of the middle section can generate elastic deformation, the top end of the positioning spring is provided with an arc-shaped bulge which is matched with the middle neutral position groove 12 on the main shaft 2 in a modeling manner, and the middle neutral position groove and the.
The end part of the main shaft 2 penetrating one side of the gear selecting and shifting rocker arm 1 is provided with a main shaft extending arm 13, the main shaft extending arm 13 is bent in an L shape, one side of the L shape is fixed at the end part of the main shaft 2 by adopting a bolt, and the other side of the L shape extends out of the back end part of the gear selecting and shifting rocker arm 1 and is provided with a cylindrical fixing pin 10. One end of the gear selecting and shifting rocker arm 1, which extends out of the corresponding side of the auxiliary shaft 3, is sleeved with a rocker arm extending arm 14 and a return torsion spring 11 in sequence. The rocker arm extension arm 14 extends in the same direction as the main shaft extension arm 13 and is fixedly connected with the auxiliary shaft 3, the auxiliary shaft 3 is driven by rotation to rotate and displace along with the rocker arm extension arm, and a cylindrical shifting pin 9 is arranged at the end part of the rocker arm extension arm and the cylindrical fixing pin 10 in the same direction. The two ends of the return torsion spring 11 extend to clamp the shifting pin 9 and the fixing pin 10 between the two ends in sequence, wherein the shifting pin 9 is positioned on the inner side, and the fixing pin 10 is positioned on the outer side.
The working principle of the invention is as follows:
when the speed change manipulator is positioned in a neutral position, the arc-shaped bulge at the top end of the positioning spring 8 fixed on the disk-shaped base 5 is clamped into the middle neutral position groove 12 arranged on the main shaft 2, the top peaks at the two sides of the middle neutral position groove 12 just lock the arc-shaped bulge at the top end of the positioning spring 8, and the two are tightly meshed, so that the neutral position is realized, namely the positioning spring 8 and the main shaft 2 are positioned at the circumferential position.
During gear shifting, according to the attached drawings 4 and 5, the speed change manipulator moves forward in the arrow direction, namely, the gear selecting and shifting rocker arm 1 moves forward, the gear selecting and shifting rocker arm 1 drives the spindle 2 to rotate, the positioning spring 8 is pressed downwards through the side wall of the middle neutral position groove 12, the middle section of the positioning spring 8 bends in an arc shape to deform, so that the arc-shaped bulge at the top end of the positioning spring 8 is separated from the middle neutral position groove 12 on the spindle 2, and when the gear shifting is in place, the arc-shaped bulge at the top end of the positioning spring 8 stops at the corresponding slope bottom outside the middle neutral position groove 12 on the ratchet wheel of the spindle 2. Meanwhile, under the action of the elastic force generated by the positioning spring 8, the assistance is generated to the gear shifting action.
Referring to fig. 6 and 7, the shift operator moves backward in the direction of the arrow, i.e. the select/shift rocker arm 1 moves backward, and the operation of the detent spring 8 and the neutral position groove 12 on the main shaft 2 is opposite to the forward movement.
During gear selection, according to fig. 8 and fig. 9, the speed change manipulator do respectively with the arrow direction left, right movement, select the gear shift rocking arm 1 to do respectively left, right movement promptly, the setting pin 9 that sets up on the rocking arm cantilever arm 14, the fixed pin 10 that sets up on the main shaft cantilever arm 13 mutually support with torsional spring 11, realize the return function by the effort of setting pin 9 and the mutual position change of fixed pin 10 production to return torsional spring 11, promptly return torsional spring 11 mutually supports with setting pin 9, fixed pin 10 and realizes the circumference position location. The specific action process is as follows: the gear selecting and shifting rocker arm 1 drives the auxiliary shaft 3 to rotate, a shifting pin 9 arranged on a rocker arm extending arm 14 rotates along with the rotation of the auxiliary shaft 3, a return torsion spring 11 is opened, the return torsion spring 11 generates elastic deformation, a return force for recovering the elastic deformation is generated on the gear selecting and shifting rocker arm 1, under the action of the return force, the gear selecting and shifting rocker arm 1 automatically returns after force is removed, and the reset function after gear selecting is realized.
The invention is originated at home and abroad, has tangent single-arm output, bidirectional movement and bidirectional positioning, can effectively improve the operation hand feeling of a driver, reduces the driving fatigue and effectively prevents the operating lever from shaking.
Claims (6)
1. The utility model provides a heavy-duty car hard lever operating system arranges variable speed manipulator with hand which characterized in that: the speed change manipulator comprises a disc-shaped base and a gear selecting and shifting combination mechanism fixedly connected with the disc-shaped base, the gear selecting and shifting combination mechanism is connected with an operating lever of an automobile, the gear selecting and shifting combination mechanism is operated by the operating lever to realize gear selecting or shifting action, the gear selecting and shifting combination mechanism comprises a gear selecting and shifting rocker arm, a main shaft, an auxiliary shaft and a fixed seat, the gear selecting and shifting rocker arm is of an up-and-down structure, the upper part of the gear selecting and shifting rocker arm is fastened with the operating lever of the automobile, the lower part of the gear selecting and shifting rocker arm is of a four-way frame structure, one way of the two ways is a channel of the main shaft, the other way is a channel of the auxiliary shaft, meanwhile, the auxiliary shaft and the main shaft form a cross shaft structure, two ports of the channel for the auxiliary shaft on the gear selecting and shifting rocker arm are respectively provided with auxiliary shaft bearings, the gear shifting action is realized through the relative rotation displacement of the bearing of the fixed seat and the fixed seat, and the fixed seat is horizontally fixed on the disk-shaped engine base.
2. The manual gearshift manipulator for hard lever operation system of heavy truck as claimed in claim 1, wherein: the main shaft is provided with a middle neutral position groove at a position between the gear selecting and shifting rocker arm and the fixed seat, a positioning spring is fixedly arranged at a corresponding position of the disk-shaped base, the middle section of the positioning spring is of a bending structure capable of generating elastic deformation, and the top end of the positioning spring is provided with an arc-shaped bulge and matched with the middle neutral position groove on the main shaft in a modeling manner.
3. The manual gearshift manipulator for hard lever operation system of heavy truck as claimed in claim 1, wherein: the main shaft passes the tip of selecting gear shift rocking arm one side and is equipped with the main shaft and stretches out the arm, the main shaft stretch out the arm and be L font and buckle, wherein the L font adopts the bolt fastening to be in the tip of main shaft on one side, the another side stretches out the back tip of selecting the gear shift rocking arm and is equipped with cylindrical fixed pin, the one end order cover that stretches out the gear shift rocking arm in the corresponding one side of countershaft is equipped with rocking arm and return torsional spring, rocking arm stretch out the arm with the main shaft and stretch out the arm syntropy to with countershaft fixed connection, drive its rotation displacement along with it by the rotation of countershaft, its tip and cylindrical fixed pin syntropy are equipped with cylindrical group round pin, the both ends head extension of return torsional spring, will group round pin and fixed pin order press from both ends between the head, wherein group.
4. The manual gearshift manipulator for hard lever operation system of heavy truck as claimed in claim 2, wherein: when the variable speed manipulator is positioned in a neutral position, the arc-shaped bulge at the top end of the positioning spring is tightly meshed with the middle neutral position groove on the main shaft when the variable speed manipulator is positioned in the neutral position, so that the variable speed manipulator and the positioning spring are positioned relative to the circumferential position to realize the neutral position function.
5. The manual gearshift manipulator for hard lever operation system of heavy truck as claimed in claim 3, wherein: when the speed-changing manipulator does forward gear-shifting movement, the gear-selecting and shifting rocker arm drives the main shaft to rotate, the positioning spring is pressed downwards through the side wall of the middle neutral position groove, the middle section of the positioning spring is bent into an arc shape to deform, the arc-shaped bulge at the top end of the positioning spring is separated from the middle neutral position groove on the main shaft, when the gear is shifted in place, the arc-shaped bulge at the top end of the positioning spring stops at the corresponding slope bottom on the outer side of the middle neutral position groove on the main shaft, and meanwhile, under the elastic force generated by the positioning spring, assistance is generated for the gear; when the speed change manipulator does backward gear shifting movement, the process is opposite to the forward movement process.
6. The manual gearshift manipulator for hard lever operation system of heavy truck as claimed in claim 3, wherein: when the variable speed manipulator does left or right gear selecting motion, the selection rocking arm of shifting drive the countershaft and rotate, the setting pin that sets up on the rocking arm stretches out the arm follows the rotation of countershaft and rotates, mutually supports with fixed pin and the torsional spring that sets up on the main shaft stretches out the arm, opens the return torsional spring by setting pin and the mutual position change of fixed pin, and elastic deformation takes place for the return torsional spring, produces the return force that resumes elastic deformation from this and carries out the location of relative circumferencial position, realizes the return function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010667834.3A CN111664243A (en) | 2020-07-13 | 2020-07-13 | Manual gear shifting manipulator for hard rod control system of heavy-duty car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010667834.3A CN111664243A (en) | 2020-07-13 | 2020-07-13 | Manual gear shifting manipulator for hard rod control system of heavy-duty car |
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| Publication Number | Publication Date |
|---|---|
| CN111664243A true CN111664243A (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010667834.3A Pending CN111664243A (en) | 2020-07-13 | 2020-07-13 | Manual gear shifting manipulator for hard rod control system of heavy-duty car |
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| CN (1) | CN111664243A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048232A (en) * | 2021-04-30 | 2021-06-29 | 上海惟译汽配制造有限公司 | Double-torsion spring manual transmission speed change manipulator for automobile flexible shaft control system |
-
2020
- 2020-07-13 CN CN202010667834.3A patent/CN111664243A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048232A (en) * | 2021-04-30 | 2021-06-29 | 上海惟译汽配制造有限公司 | Double-torsion spring manual transmission speed change manipulator for automobile flexible shaft control system |
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