CN208134429U - A kind of line traffic control hydraulic automobile steering system mechanical backup device - Google Patents
A kind of line traffic control hydraulic automobile steering system mechanical backup device Download PDFInfo
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- CN208134429U CN208134429U CN201820569227.1U CN201820569227U CN208134429U CN 208134429 U CN208134429 U CN 208134429U CN 201820569227 U CN201820569227 U CN 201820569227U CN 208134429 U CN208134429 U CN 208134429U
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Abstract
The utility model discloses a kind of line traffic control hydraulic automobile steering system mechanical backup devices, belong to automobile steering system field.The steering rack of the utility model is obliquely installed in rotate gear side and engages with rotate gear connection, two sides are tiltedly installed with hydraulic steering cylinder respectively below the lifting support of steering rack lower end, Oil Guide oil pipe is provided with and respectively communicated between hydraulic steering cylinder upper and lower ends and control solenoid valve one end, it is separately connected between failed controller and two control solenoid valves and is provided with control harness, composite hydraulic cylinder is horizontally placed on the downside of control solenoid valve, is led between hydraulic fluid port and control solenoid valve one end in two of interior hydraulic cylinder and is provided with and respectively communicated with lower Oil Guide oil pipe.The structure design of the utility model is reasonable, can quickly establish the mechanical connection between steering wheel and wheel when vehicle active steering execution part fails, realize that steering wheel directly controls two wheels of vehicle foreside, guarantee the safety of vehicle driving.
Description
Technical field
The utility model belongs to automobile steering system field more particularly to a kind of line traffic control hydraulic automobile steering system machinery is standby
Part device.
Background technique
With being gradually increased for people's living standard, automobile is also more and more used in people's lives work, vapour
Car type class is more, classifies according to purposes, and automobile includes car, car and lorry, and automobile is all extensive in many industries
Carry out apply, automobile has become the essential vehicles in modern's daily life.During whole Automobile Design,
Inwardly turned foreign steamer corner is ideally required to meet Ackermam geometry, i.e., each wheel has to be around a common central point
It turns, so that lateral sliding does not occur and guarantees the turning flexibility of vehicle for tire.But under virtual condition, due to inwardly turned
Foreign steamer is connected by a bar（Circulating ball steering system is connected by drag link, and rack-and-pinion steering system is turned by rack-and-pinion
It is attached to device, herein treats rack and pinion steering gear as a bar）, when steering by the axial translation of this root bar come
Wheel steering is realized, to cannot comply fully with it cannot be guaranteed that inside and outside deflecting roller is turned around a common central point
Ackermam geometry, to influence the turning flexibility etc. of tyre life, vehicle.The leading DAS line traffic control of existing automobile industry
Active steering：Signal is passed to three groups of motors according to the rotation of steering wheel by three groups of ECU computers, then by wherein two groups of motors Lai
Control the rotational angle and speed of wheel, one group of motor carrys out the feedback force of simulated roadway, in addition also there are one group of mechanical structure with
It is standby when three groups of ECU break down as spare.Signal is sent to driving motor, and driving motor controls turning-bar and turns to realize
To.Steering wheel is caused to cannot achieve steering in order to avoid electronic system failure, the steering running part of DAS remains mechanical biography
Moving part, but centre has a clutch, clutch is usually separated, and power-off when can just close automatically, even if so DAS
System down, driver also can normal driving vehicle, although using DAS line traffic control active steering, have turn to it is sensitive non-delay, no
Make to turn to the component for generating delay there are universal joint etc.；In running over vehicle, according to speed and the difference of driving mode（It relaxes
It is suitable, movement etc.）The advantages that flexible can must changing turning rate, turning to hand-power size, improve the steering behaviour of vehicle, but DAS line
Control active steering still has following determinations：The mechanical backup of steering-by-wire relies primarily on the realization of the clutch on steering column,
When line traffic control active steering fails, clutch closure makes steering wheel and wheel generate mechanical connection, with traditional steering system structural
Completely the same, this allows for still having mechanical connection between left and right turn wheel, under different speeds, cannot make turning for deflecting roller
The angular dependence moment is in ideal angle relation, this allows for the handling of vehicle and has no essential promotion, and there is no realize simultaneously
The independent control of each deflecting roller and the mechanical backup of steering influence vehicle after the failure of active steering execution part, vehicle
Steering manipulation performance substantially reduce, influence the comfort level and security performance of vehicle drive.
Utility model content
Technical problem to be solved in the utility model is the above-mentioned deficiency in the presence of overcoming the prior art, and provides one
Kind is reasonable in design, can quickly establish the machinery between steering wheel and wheel when vehicle active steering execution part fails
Connection realizes that steering wheel directly controls two wheels of vehicle foreside, guarantees a kind of hydraulic vapour of line traffic control of vehicle driving safety
Vehicle steering system mechanical backup device.
In order to solve the above-mentioned technical problem, technical solution used by the utility model is：A kind of line traffic control hydraulic automobile turn
To system mechanics back-up device, it is characterised in that：The line traffic control hydraulic automobile steering system mechanical backup device include steering wheel,
Column casing, tubing string mandrel, steering rack, hydraulic steering cylinder, control solenoid valve, composite hydraulic cylinder and failed controller, it is described
Tubing string mandrel is rotationally connected with column casing, and steering wheel is arranged on the upside of tubing string mandrel, middle side part and tubing string mandrel under steering wheel
Upper end clamps connection, and tubing string mandrel lower end is fixedly connected with bevel gear, tilts upward on the tubing string mandrel extended line direction
It is provided with steering motor and sensor unit, steering motor and sensor unit output end are provided with lower bevel gear, the epicone
Horizontally rotate between gear and lower bevel gear and be connected with steering adjustment axis, turn to adjustment axis side be provided with upper bevel gear and under
Bevel gear, which engages to be connected with respectively, turns to bevel gear, turns to and is provided with rotate gear in the steering adjustment axis of bevel gear side, institute
It states steering rack to be obliquely installed in rotate gear side and engage connection with rotate gear, steering rack and tubing string mandrel are mutually flat
Row, the steering rack lower end inclination are fixedly installed lifting support, and two sides are tiltedly installed with respectively below the lifting support
Hydraulic steering cylinder, steering wheel lower section two sides have been symmetrically arranged control solenoid valve, hydraulic steering cylinder upper and lower ends and control
It is provided with and respectively communicated with Oil Guide oil pipe between solenoid valve one end processed, divides between the failed controller and two control solenoid valves
It is not connected with control harness, the composite hydraulic cylinder is horizontally placed on the downside of control solenoid valve, and composite hydraulic cylinder includes interior
Hydraulic cylinder, outer hydraulic cylinder and track rod, interior hydraulic cylinder and outer hydraulic cylinder are parallel to each other, and interior hydraulic cylinder slides in the horizontal direction
It is set in the middle part of outer hydraulic cylinder, outside is provided with sealing ring compatible with outer hydraulic cylinder, outer hydraulic cylinder in the middle part of interior hydraulic cylinder
Two outer grease chambers are separated by sealing ring, outer hydraulic cylinder both ends are respectively arranged with outer logical hydraulic fluid port, outside two logical hydraulic fluid port respectively with
Two outer grease chamber connections, outer hydraulic cylinder two sides have been symmetrically arranged mounting bracket, and horizontal sliding is provided in the middle part of interior hydraulic cylinder
Track rod, track rod middle part are provided with translating piston compatible with interior hydraulic cylinder, and interior hydraulic cylinder is translated piston
Be separated into two interior grease chambers, interior hydraulic cylinder both ends are respectively arranged with interior logical hydraulic fluid port, lead in two hydraulic fluid port respectively with two interior grease chambers
It is connected to, leads between hydraulic fluid port and control solenoid valve one end in two and be provided with and respectively communicated with lower Oil Guide oil pipe.
Further, installation bushing is provided between the mounting bracket and outer hydraulic cylinder.
The utility model compared with prior art, has the following advantages that and effect：The structure design of the utility model is reasonable, leads to
It crosses steering wheel to be arranged on the upside of tubing string mandrel, tubing string mandrel is rotationally connected with column casing, and steering rack is obliquely installed in rotation
Gear side and connection is engaged with rotate gear, two sides are tiltedly installed with hydraulic steering cylinder respectively below lifting support, so that vehicle
Driver can efficiently be converted into the input of hydraulic steering cylinder inner fluid to the rotary motion of steering wheel in the process of moving
Output movement has been symmetrically arranged control solenoid valve, failed controller and two control electromagnetism by two sides below steering wheel
It is separately connected between valve and is provided with control harness, be respectively communicated with and set between hydraulic steering cylinder upper and lower ends and control solenoid valve one end
It is equipped with Oil Guide oil pipe, is provided with and respectively communicated with lower Oil Guide oil pipe between composite hydraulic cylinder and control solenoid valve one end, so that
After the active steering execution part failure of vehicle, failed controller can intervention rapidly and efficiently be enabled sets up steering wheel and vehicle
Mechanical connection between wheel realizes that steering wheel directly controls two wheels of vehicle foreside, guarantees vehicle driving safety, and turn
It can be realized the independent control to two wheels of vehicle foreside to disk, the steering operation performance of wheel improved, by compound hydraulic
Cylinder includes interior hydraulic cylinder, outer hydraulic cylinder and track rod, and interior hydraulic cylinder is slideably positioned in the horizontal direction in the middle part of outer hydraulic cylinder,
Outer hydraulic cylinder is separated into two outer grease chambers by sealing ring, and interior hydraulic cylinder is translated piston and is separated into two interior grease chambers, in vehicle
Active steering execution part failure after, outer hydraulic cylinder is not due to generating oil supply loop, so that interior hydraulic cylinder is relative to outer hydraulic
Cylinder is remain stationary, but under the control and regulation of failed controller, utilizes lower Oil Guide oil pipe, upper Oil Guide oil pipe and control solenoid valve
Between oil supply loop, translating piston can be driven to carry out translational motion, enable track rod is horizontal accurately to carry out
Translational motion is realized and carries out steering manipulation to wheel during Vehicular turn, guarantees the safety of vehicle driving, meet vehicle and drive
The comfort level and security performance sailed.
Detailed description of the invention
Fig. 1 is a kind of line traffic control hydraulic automobile steering system mechanical backup apparatus structure schematic diagram of the utility model.
Fig. 2 is the steering wheel of the utility model and the attachment structure schematic diagram of hydraulic steering cylinder.
Fig. 3 is the structural schematic diagram of the utility model composite hydraulic cylinder.
Fig. 4 is Fig. 3 composite hydraulic cylinder A-A of the utility model to schematic cross-sectional view.
In figure：1. steering wheel, 2. column casings, 3. tubing string mandrels, 4. steering racks, 5. hydraulic steering cylinders, 6. control electricity
Magnet valve, 7. composite hydraulic cylinders, 8. failed controllers, bevel gear on 9., 10. sensor units, 11. lower bevel gears, 12. turn to and adjust
Nodal axisn, 13. turn to bevel gears, 14. rotate gears, 15. lifting supports, Oil Guide oil pipe on 16., 17. control harness, liquid in 18.
Cylinder pressure, 19. outer hydraulic cylinders, 20. track rods, 21. sealing rings, 22. outer grease chambers, logical hydraulic fluid port outside 23., 24. mounting brackets,
25. translating piston, grease chamber in 26. leads to hydraulic fluid port, 28. lower Oil Guide oil pipes, 29. installation bushings in 27..
Specific embodiment
In order to further describe the utility model, a kind of line traffic control hydraulic automobile steering system is further described with reference to the accompanying drawing
It unites the specific embodiment of mechanical backup device, following embodiment is the explanation to the utility model and the utility model not office
It is limited to following embodiment.
As shown in Figure 1 and Figure 2, a kind of line traffic control hydraulic automobile steering system mechanical backup device of the utility model, including turn to
Disk 1, column casing 2, tubing string mandrel 3, steering rack 4, hydraulic steering cylinder 5, control solenoid valve 6, composite hydraulic cylinder 7 and failure control
Device 8 processed, tubing string mandrel 3 are rotationally connected with column casing 2, and the setting of steering wheel 1 is in 3 upside of tubing string mandrel, the lower middle side part of steering wheel 1
It clamps and connects with 3 upper end of tubing string mandrel, 3 lower end of tubing string mandrel is fixedly connected with bevel gear 9,3 extended line direction of tubing string mandrel
On tilt upward and be provided with steering motor and sensor unit 10, steering motor and 10 output end of sensor unit are provided with lower cone
Gear 11 horizontally rotates between upper bevel gear 9 and lower bevel gear 11 and is connected with steering adjustment axis 12, turns to 12 side of adjustment axis and sets
It is equipped with to engage to be connected with respectively with upper bevel gear 9 and lower bevel gear 11 and turns to bevel gear 13, turn to the steering of 13 side of bevel gear
Rotate gear 14 is provided in adjustment axis 12, steering rack 4 is obliquely installed in 14 side of rotate gear and nibbles with rotate gear 14
Connection is closed, steering rack 4 is parallel to each other with tubing string mandrel 3, and the inclination of 4 lower end of steering rack is fixedly installed lifting support 15, rises
15 lower section two sides of descending branch frame are tiltedly installed with hydraulic steering cylinder 5 respectively, and the 1 lower section two sides of steering wheel of the utility model are respectively symmetrically
It is provided with control solenoid valve 6, is provided with and respectively communicated with and leads between 5 upper and lower ends of hydraulic steering cylinder and control 6 one end of solenoid valve
Oil pipe 16 is separately connected between failed controller 8 and two control solenoid valves 6 and is provided with control harness 17, composite hydraulic cylinder 7
It is horizontally placed on 6 downside of control solenoid valve.
As shown in Figure 3, Figure 4, the composite hydraulic cylinder 7 of the utility model includes interior hydraulic cylinder 18, outer hydraulic cylinder 19 and turns to
Drag link 20, interior hydraulic cylinder 18 and outer hydraulic cylinder 19 are parallel to each other, and interior hydraulic cylinder 18 is slideably positioned in outer hydraulic in the horizontal direction
19 middle part of cylinder, interior 18 middle part outside of hydraulic cylinder are provided with sealing ring 21 compatible with outer hydraulic cylinder 19, outer 19 quilt of hydraulic cylinder
Sealing ring 21 is separated into two outer grease chambers 22, and outer 19 both ends of hydraulic cylinder are respectively arranged with outer logical hydraulic fluid port 23, logical hydraulic fluid port outside two
23 are connected to two outer grease chambers 22 respectively, and outer 19 two sides of hydraulic cylinder have been symmetrically arranged mounting bracket 24, in interior hydraulic cylinder 18
Level sliding in portion's is provided with track rod 20, and translation compatible with interior hydraulic cylinder 18 is provided in the middle part of track rod 20 and is lived
Plug 25, interior hydraulic cylinder 18 is translated piston 25 and is separated into two interior grease chambers 26, and interior 18 both ends of hydraulic cylinder are respectively arranged with interior logical oil
Mouthfuls 27, lead to hydraulic fluid port 27 in two and be connected to respectively with two interior grease chambers 26, hydraulic fluid port 27 is led in two and is controlled between 6 one end of solenoid valve
It is provided with and respectively communicated with lower Oil Guide oil pipe 28.Installation lining is provided between the mounting bracket 24 and outer hydraulic cylinder 19 of the utility model
Set 29, enables being connected and fixed with vehicle body of 7 firm stable of composite hydraulic cylinder.
By adopting the above technical scheme, a kind of line traffic control hydraulic automobile steering system mechanical backup device of the utility model is using
When, by the setting of steering wheel 1 in 3 upside of tubing string mandrel, tubing string mandrel 3 is rotationally connected with column casing 2, steering rack 4
It is obliquely installed in 14 side of rotate gear and engages connection with rotate gear 14,15 lower section two sides of lifting support are obliquely installed respectively
There is hydraulic steering cylinder 5, enabling vehicle, driver is efficiently converted into the rotary motion of steering wheel 1 in the process of moving
It is moved to the input and output of 5 inner fluid of hydraulic cylinder, has been symmetrically arranged control solenoid valve 6 by 1 lower section two sides of steering wheel, has lost
Effect controller 8 and two control solenoid valves 6 between be separately connected be provided with control harness 17,5 upper and lower ends of hydraulic steering cylinder and
Control is provided with and respectively communicated with Oil Guide oil pipe 16 between 6 one end of solenoid valve, composite hydraulic cylinder 7 and control 6 one end of solenoid valve it
Between be provided with and respectively communicated with lower Oil Guide oil pipe 28 so that vehicle active steering execution part failure after, 8 energy of failed controller
The enabled mechanical connection set up between steering wheel 1 and wheel of enough interventions rapidly and efficiently, realizes steering wheel 1 to vehicle foreside two
Wheel directly controls, and guarantees vehicle driving safety, and steering wheel 1 can be realized the independence control to two wheels of vehicle foreside
System, improves the steering operation performance of wheel, includes interior hydraulic cylinder 18, outer hydraulic cylinder 19 and the horizontal drawing of steering by composite hydraulic cylinder 7
Bar 20, interior hydraulic cylinder 18 are slideably positioned in outer 19 middle part of hydraulic cylinder in the horizontal direction, and outer hydraulic cylinder 19 is separated by sealing ring 21
At two outer grease chambers 22, interior hydraulic cylinder 18 is translated piston 25 and is separated into two interior grease chambers 26, executes in the active steering of vehicle
After partial failure, outer hydraulic cylinder 19 is not due to generating oil supply loop, so that interior hydraulic cylinder 18 keeps quiet relative to outer hydraulic cylinder 19
Only, but under the control and regulation of failed controller 8, using lower Oil Guide oil pipe 28, upper Oil Guide oil pipe 16 and control solenoid valve 6 it
Between oil supply loop, translating piston 25 can be driven to carry out translational motion, enable track rod 20 it is horizontal accurately into
Row translational motion is realized and carries out steering manipulation to wheel during Vehicular turn.Through this structure, the utility model knot
Structure design rationally, can be when vehicle active steering execution part fails, and the machinery quickly established between steering wheel 1 and wheel connects
It connects, realizes that steering wheel 1 directly controls two wheels of vehicle foreside, guarantee the safety of vehicle driving, meet vehicle drive
Comfort level and security performance.
Above content is only illustrate to examples for clearly illustrating the present invention described in this specification.The utility model
Person of ordinary skill in the field can make various modifications or additions to the described embodiments or using class
As mode substitute, content without departing from the utility model specification or surmount model defined in the claims
It encloses, all should belong to the protection range of the utility model.
Claims (2)
1. a kind of line traffic control hydraulic automobile steering system mechanical backup device, it is characterised in that：The line traffic control hydraulic automobile steering system
System mechanical backup device includes steering wheel, column casing, tubing string mandrel, steering rack, hydraulic steering cylinder, controls solenoid valve, is multiple
Hydraulic cylinder and failed controller are closed, the tubing string mandrel is rotationally connected with column casing, and steering wheel is arranged on the upside of tubing string mandrel,
Middle side part and tubing string mandrel upper end, which clamp, under steering wheel connects, and tubing string mandrel lower end is fixedly connected with bevel gear, the tubing string
It is tilted upward on mandrel extended line direction and is provided with steering motor and sensor unit, steering motor and sensor unit output end
It is provided with lower bevel gear, horizontally rotates between the upper bevel gear and lower bevel gear and is connected with steering adjustment axis, turns to adjustment axis
Side, which is provided with to engage to be connected with respectively with upper bevel gear and lower bevel gear, turns to bevel gear, turns to the steering tune of bevel gear side
It is provided with rotate gear on nodal axisn, the steering rack is obliquely installed in rotate gear side and engages with rotate gear connection,
Steering rack is parallel to each other with tubing string mandrel, and the steering rack lower end inclination is fixedly installed lifting support, the lifting branch
Two sides are tiltedly installed with hydraulic steering cylinder respectively below frame, and two sides have been symmetrically arranged control electromagnetism below the steering wheel
Valve is provided with and respectively communicated with Oil Guide oil pipe, the failure control between hydraulic steering cylinder upper and lower ends and control solenoid valve one end
It is separately connected between device processed and two control solenoid valves and is provided with control harness, the composite hydraulic cylinder is horizontally placed on control electricity
On the downside of magnet valve, composite hydraulic cylinder includes interior hydraulic cylinder, outer hydraulic cylinder and track rod, and interior hydraulic cylinder and outer hydraulic cylinder are mutually flat
Row, interior hydraulic cylinder are slideably positioned in the horizontal direction in the middle part of outer hydraulic cylinder, and outside is provided with and outer hydraulic cylinder in the middle part of interior hydraulic cylinder
Compatible sealing ring, outer hydraulic cylinder are separated into two outer grease chambers by sealing ring, and outer hydraulic cylinder both ends are respectively arranged with outer
Logical hydraulic fluid port, two lead to hydraulic fluid port outside and are connected to respectively with two outer grease chambers, and outer hydraulic cylinder two sides have been symmetrically arranged mounting bracket, interior
Horizontal sliding is provided with track rod in the middle part of hydraulic cylinder, is provided with translation compatible with interior hydraulic cylinder in the middle part of track rod
Piston, interior hydraulic cylinder are translated piston and are separated into two interior grease chambers, and interior hydraulic cylinder both ends are respectively arranged with interior logical hydraulic fluid port, in two
Logical hydraulic fluid port is connected to two interior grease chambers respectively, is led between hydraulic fluid port and control solenoid valve one end to be provided with and respectively communicated with down in two and be led
Oil pipe.
2. a kind of line traffic control hydraulic automobile steering system mechanical backup device according to claim 1, it is characterised in that：It is described
Installation bushing is provided between mounting bracket and outer hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820569227.1U CN208134429U (en) | 2018-04-20 | 2018-04-20 | A kind of line traffic control hydraulic automobile steering system mechanical backup device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820569227.1U CN208134429U (en) | 2018-04-20 | 2018-04-20 | A kind of line traffic control hydraulic automobile steering system mechanical backup device |
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| Publication Number | Publication Date |
|---|---|
| CN208134429U true CN208134429U (en) | 2018-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820569227.1U Active CN208134429U (en) | 2018-04-20 | 2018-04-20 | A kind of line traffic control hydraulic automobile steering system mechanical backup device |
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| CN (1) | CN208134429U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109850010A (en) * | 2019-02-28 | 2019-06-07 | 江苏大学 | A kind of line traffic control independent steering system and its method |
| CN110455553A (en) * | 2019-08-19 | 2019-11-15 | 吉林大学 | A kind of drive robot that achievable driver intervenes at any time |
-
2018
- 2018-04-20 CN CN201820569227.1U patent/CN208134429U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109850010A (en) * | 2019-02-28 | 2019-06-07 | 江苏大学 | A kind of line traffic control independent steering system and its method |
| CN109850010B (en) * | 2019-02-28 | 2021-02-12 | 江苏大学 | Wire-controlled independent steering system and method thereof |
| CN110455553A (en) * | 2019-08-19 | 2019-11-15 | 吉林大学 | A kind of drive robot that achievable driver intervenes at any time |
| CN110455553B (en) * | 2019-08-19 | 2024-03-01 | 吉林大学 | Driving robot capable of realizing intervention of driver at any time |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210510 Address after: 201306 building C, No. 888, Huanhu West 2nd Road, Lingang New Area, Pudong New Area, Shanghai Patentee after: Shanghai Xiantu Technology Co.,Ltd. Address before: 314500 333 Tong Tong Road, Wutong street, Tongxiang, Jiaxing, Zhejiang Patentee before: ZHEJIANG DAIDE LONGTREE AUTOMOBILE Co.,Ltd. |
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| TR01 | Transfer of patent right |