CN206598873U - The big stroke pneumatic steering column of vehicle steering - Google Patents
The big stroke pneumatic steering column of vehicle steering Download PDFInfo
- Publication number
- CN206598873U CN206598873U CN201621432081.3U CN201621432081U CN206598873U CN 206598873 U CN206598873 U CN 206598873U CN 201621432081 U CN201621432081 U CN 201621432081U CN 206598873 U CN206598873 U CN 206598873U
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- CN
- China
- Prior art keywords
- assembly
- steering
- friction plate
- column
- column jecket
- Prior art date
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Abstract
The utility model provides a kind of big stroke pneumatic steering column of vehicle steering, including：Mounting bracket assembly, column jecket, friction plate under two sides is provided with some groups on the inside of the mounting bracket assembly；It is provided with column jecket between upper friction plate, the upper friction plate and is provided with gap；Cylinder assembly is provided with column jecket, the push rod of the cylinder assembly can promote the upper friction plate to deform it, so that upper friction plate is tightly fitted with lower friction plate；It is connected to the rotating shaft screw bolt on column jecket to be arranged on sliding sleeve in the chute of mounting bracket assembly, the control bearing pin being connected on column jecket is arranged in the steering wheel Stroke Control region of mounting bracket assembly；The utility model is big by the regulation angle of steering wheel, and adjustable range up and down is long.Adjustment demand of the driver to steering wheel comfortable position of other, height, build not of the same surname is met, it is easy to operate, lightly.
Description
Technical field
The utility model is related to field of mechanical technique, more particularly to a kind of big stroke pneumatic steering column of vehicle steering.
Background technology
Driver realizes the change of direction of traffic by manipulating steering wheel, and the manipulation of steering wheel is that driving vehicle can not
Depart from the part of the main control of hand.Driver hold steering wheel position, be driver driving comfort level it is main because
Element.
After driver gets on the bus, the relative position that seat and steering wheel are adjusted according to the physical qualification of itself is generally required；
General passenger car is regulation seat；Commercial car typically adjusts steering wheel.It is usually many for the automobile of modern long-distance continuative transport
The driving of name driver's rotation.For switching between the other, driver of height, build not of the same surname, steering wheel position can be realized
Large range of regulation seems particularly significant.For passenger-cargo carriage of the domestic existing current commercial car in addition to normal control vehicle to steering wheel
Operating pattern is substantially hand end drot gfasplng, and driver leaves seat getting on or off the bus, and the distance with steering wheel is small, causes not side
Just.For build, more fat driver can cause difficulty.Wish that steering wheel can be adjusted forward when getting off, the space got off
Allow out.The batch of domestic automobile pipe column assembly adjusts angle at 10 degree or so using general steering wheel at present, up and down
Adjustable range is in 50mm.Pair it is limited from the satisfaction of the steering wheel position of different drivers requirement, to being got off to meet
When concede steering wheel and the space of seat be even more to be difficult to.
The steering wheel of existing domestic commercial vehicle adjusts angle at 10 degree or so, and adjustable range up and down is in 50mm.It can not expire
Adjustment demand of the driver of foot other, height, build not of the same surname to steering wheel comfortable position.Driver leaves seat getting on or off the bus
Position, the distance with steering wheel is small, causes inconvenience.For build, more fat driver can cause difficulty.
Existing steering wheel adjustment region is trapezium structure, causes steering wheel to adjust transition affluence in space in low level, no
It can adjust and use, it is clearly disadvantageous in a high position for steering wheel, it is impossible to meet the regulatory demand of driver.In design with driving
The actual use preferable adjusting position of member is mismatched very much.
The source of the gas solution lock control of small quantities of air power steering tubing string assembly domestic at present is Manual gas valve switch.When driver needs
During the position of adjustment direction disk, the button switch or rotary switch of manual unlocking air valve are first wanted, then holds steering wheel being adjusted
To the position of needs, then air valve switch is pressed or rotates, by steering wheel locking.The switch unblock of the adjustment of steering wheel, is adjusted manually
Whole, the locking of steering wheel is again manually operated, and driver's adjustment is inconvenient.
Utility model content
The purpose of this utility model is that the defect for solving above-mentioned prior art presence can adjust bigger floating there is provided one kind
The big stroke pneumatic steering column of vehicle steering of dynamic scope.
A kind of big stroke pneumatic steering column of vehicle steering, including：Mounting bracket assembly, column jecket, the mounting bracket
Assembly is connected by bolt with driver's cabin, and column jecket is connected by bearing with steering spindle, and steering spindle is fixedly connected with steering wheel；In peace
Straight pin is respectively fixedly connected with two sides on the inside of dress bracket assembly, being separately installed with straight pin can be along its axial direction
Friction plate under mobile some groups；
The symmetrical upper friction plate with the lower corresponding and identical group of number in friction plate position is provided with column jecket,
The gap inserted one by one for friction plate under each group is provided between the upper friction plate；
Cylinder assembly is provided with column jecket, the push rod of the cylinder assembly can promote the upper friction plate to become it
Shape, so that upper friction plate is tightly fitted with lower friction plate；
It is connected to the rotating shaft screw bolt on column jecket to be arranged on sliding sleeve in the chute of mounting bracket assembly, is connected on column jecket
Bearing pin is controlled to be arranged in the steering wheel Stroke Control region of the left inside side of mounting bracket assembly；When adjusting the position of steering wheel,
The control bearing pin is moved back and forth in the chute of steering wheel Stroke Control region respectively with rotating shaft screw bolt.
Further, the big stroke pneumatic steering column of vehicle steering as described above, is provided with torsion on the inside of column jecket
Power spring, the tip of torque spring is provided with support block, and spring slide-way, the support block energy are provided with mounting bracket assembly
It is enough to be slidably reciprocated along the spring slide-way.
Further, the big stroke pneumatic steering column of vehicle steering as described above, including air valve switch, air valve switch
It is bolted with the bottom plate of driver's cabin, air inlet pipe and escape pipe, the escape pipe cylinder is provided with the air valve switch
Assembly is connected.
Further, the big stroke pneumatic steering column of vehicle steering as described above, the steering spindle passes through constant speed ten thousand
It is connected to section assembly with ball telescopic shaft set assembly, ball telescopic shaft set assembly is connected by universal joint assembly with jackshaft, in
Countershaft is connected by bolt with lower cardan assembly, and lower cardan assembly is connected with steering gear.
Further, it is provided with the big stroke pneumatic steering column of vehicle steering as described above, the jackshaft auxiliary
The oscillation bearing assembly of support is helped, oscillation bearing assembly is connected with vehicle body.
Further, be provided with the big stroke pneumatic steering column of vehicle steering as described above, column jecket igniting lockhole,
Flange, the igniting lockhole is connected with automobile ignition lock, and the flange is connected with stacked switch and sensor, clock spring.
Beneficial effect：
The utility model is big by the regulation angle of steering wheel, and adjustable range up and down is long.Meet other, height, body not of the same surname
Adjustment demand of the driver of type to steering wheel comfortable position.Driver leaves seat getting on or off the bus, and steering wheel regulation is only driven
The extreme position of going forward of platform is sailed, the distance between steering wheel and pilot set are increased, it is convenient when driver gets on or off the bus.For
The more fat driver of build will provide for great space facility.
Steering wheel sector region regulation of the present utility model and friction plate locking structure.Layout is abundant, rationally.In design
Matched very much with the actual use preferable adjusting position of driver.The space structure of steering column and steering wheel is very in driver's cabin
It is compact.
The air valve switch of the utility model design steering column is pedal jettron.Adjustment direction is needed in driver
During disk position, the cooperation of trick is free and relaxed during regulation steering wheel.It is easy to operate, lightly.
Brief description of the drawings
Fig. 1 is the big stroke pneumatic steering column front view of the application vehicle steering；
Fig. 2 is the left view of figure；
Fig. 3 is the optical cable of the big stroke pneumatic steering column of the application vehicle steering；
Fig. 4 is Fig. 3 left view；
Fig. 5 is the stereogram of the big stroke pneumatic steering column of the application vehicle steering；
Fig. 6 is the left inside side structure figure of mounting bracket assembly；
In figure, 1- mounting bracket assemblies, 1-1 chutes, 1-2 steering wheel Stroke Controls region, 2- air valve switch, 2-1 buttons,
3- air inlet pipe, 4- escape pipes, 5- cylinder assemblies, 6- column jeckets, 61- igniting lockholes, 6-2 flanges, 6-3- bearings, 7- sliding sleeves, 8- turns
In the middle of axle bolt, 9- steering spindles, 10- ball telescopic shafts set assembly, 11- constant velocity cardan joint assemblies, 12- universal joint assemblies, 13-
Axle, 14- lower cardans are total, 15- oscillation bearing assemblies, 16- upper friction plates, 17- bolts, 18- pads, friction plate, 20- under 19-
Straight pin, 21- control bearing pins, 22- nuts, 23- torque springs, 24- spring slide-ways, 25- support blocks.
Embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, below technical side in the utility model
Case is clearly and completely described, it is clear that described embodiment is a part of embodiment of the utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of the utility model protection.
As shown in figs 1 to 6, the utility model provides a kind of big stroke pneumatic steering column of vehicle steering, including：Peace
Bracket assembly 1, column jecket 6 are filled, the mounting bracket assembly 1 is connected by bolt with driver's cabin, column jecket 6 is by bearing 6-3 with turning
Connected to axle 9, steering spindle 9 is fixedly connected with steering wheel；Cylinder has been respectively fixedly connected with the inner side two sides of mounting bracket assembly 1
Pin 20, is separately installed with friction plate 19 under can be moved along its axial direction some groups on straight pin 20；
The symmetrical upper friction with the lower corresponding and identical group of number in the position of friction plate 19 is provided with column jecket 6
The gap inserted one by one for friction plate 19 under each group is provided between piece 16, the upper friction plate 16；
Cylinder assembly 5 is provided with column jecket 6, the push rod of the cylinder assembly 5 can promote the upper friction plate 16 to make
It is deformed, so that upper friction plate 16 is tightly fitted with lower friction plate 19；
It is connected to the rotating shaft screw bolt 8 on column jecket 6 to be arranged on sliding sleeve 7 in the chute 1-1 of mounting bracket assembly 1, is connected to
Control bearing pin 21 on column jecket 6 is arranged in the steering wheel Stroke Control region 1-2 of the left inside side of mounting bracket assembly 1；Work as regulation
During the position of steering wheel, the control bearing pin 21 is with rotating shaft screw bolt 8 respectively in steering wheel Stroke Control region 1-2 and chute 1-1
Inside move back and forth.
The steering spindle 9 covers assembly 10 by constant velocity cardan joint assembly 11 and ball telescopic shaft and is connected, ball telescopic shaft set
Assembly 10 is connected by universal joint assembly 12 with jackshaft 13, and jackshaft 13 is connected by bolt with lower cardan assembly 14, under
Universal joint assembly 14 is connected with steering gear.The oscillation bearing assembly 15 of Auxiliary support, swinging axle are provided with the jackshaft 13
Assembly 15 is held with vehicle body to be connected.The bottom plate of air valve switch 2 and driver's cabin is bolted, and is provided with the air valve switch 2
Air inlet pipe 3 and escape pipe 4, the escape pipe 4 are connected with cylinder assembly 5.Igniting lockhole 6-1, flange 6-2 are provided with column jecket 6,
The igniting lockhole 6-1 is connected with automobile ignition lock, and the flange 6-2 connects with stacked switch and sensor, clock spring
Connect.The steering spindle 9 covers assembly 10 by constant velocity cardan joint assembly 11 and ball telescopic shaft and is connected, ball telescopic shaft set assembly 10
It is connected by universal joint assembly 12 with jackshaft 13, jackshaft 13 is connected by bolt with lower cardan assembly 14, lower cardan
Assembly 14 is connected with steering gear.The oscillation bearing assembly 15 of Auxiliary support, oscillation bearing assembly are provided with the jackshaft 13
15 are connected with vehicle body.Igniting lockhole 6-1, flange 6-2, the igniting lockhole 6-1 and automobile ignition lock is provided with column jecket 6 to connect
Connect, the flange 6-2 is connected with stacked switch and sensor, clock spring.
Specifically, three groups of upper friction plates 16 are fixed on column jecket 6 by bolt 17 respectively on the inner side two sides of column jecket 6, three
Room is left by pad 18 between group upper friction plate 16.What is be fixedly connected on the inner side two sides of mounting bracket assembly 1 has cylinder
Pin 20, equipped with friction plate 19 under can only be moved along its axial direction three groups on straight pin 20.In general assembly, by column jecket
6 load in mounting bracket assembly 1：Friction plate 19 is respectively charged into the room left between upper friction plate 16 under three groups；It is connected to post
Rotating shaft screw bolt 8 on pipe 6 loads with sliding sleeve 7 in the chute 1-1 of mounting bracket assembly 1；It is connected to the control bearing pin 21 on column jecket 6
In the steering wheel Stroke Control region 1-2 for loading the left inside side of mounting bracket assembly 1.
With reference to Fig. 1 and Fig. 3, sliding sleeve 7 is connected to mounting bracket by the rotating shaft screw bolt 8 being connected on column jecket 6 by nut 22
In the chute 1-1 of assembly 1.The precompressed torque of nut 22 is set, and column jecket 6 can promote sliding sleeve 7 installing by rotating shaft screw bolt 8
Moved along a straight line in the chute 1-1 of bracket assembly 1；Column jecket 6 can also be rotated by rotating shaft screw bolt 8 in sliding sleeve 7 simultaneously.
Operation principle：
A) assembly modular construction：Mounting bracket assembly 1 is bolted with driver's cabin, air valve switch 2 and driver's cabin
Bottom plate is bolted, and the air inlet pipe 3 on air valve switch 2 is connected with vehicle body air accumulator air pipe, the outlet on air valve switch 2
Pipe 4 is connected with cylinder assembly 5, and column jecket 6 is connected by rotating shaft screw bolt 8 and sliding sleeve 7 with mounting bracket assembly 1, and steering spindle 9 passes through axle
Hold 6-3 to be connected with column jecket 6, ball telescopic shaft set assembly 10 is connected by constant velocity cardan joint assembly 11 with steering spindle 9, jackshaft 13
Assembly 10 is covered by universal joint assembly 12 and ball telescopic shaft to be connected, lower cardan assembly 14 is connected with jackshaft 13 by bolt
Connect, lower cardan assembly 14 is connected with steering gear.
B) the part of assembly loading：As shown in figure 1, being connected at igniting lockhole 6-1 on column jecket 6 with automobile ignition lock, post
It is connected at flange 6-2 on pipe 6 on face with the part such as stacked switch and sensor, clock spring.There is auxiliary branch on jackshaft 13
The oscillation bearing assembly 15 of support, oscillation bearing assembly 15 is connected with vehicle body.
C) turning function implementation process：Driver turn steering wheel, steering wheel drives steering spindle 9 to rotate, and steering spindle 9 is by power
Square passes to ball telescopic shaft by constant velocity cardan joint assembly 11 and covers assembly 10, and ball telescopic shaft set assembly 10 is total by universal joint
Jackshaft 13 is passed torque into 12, jackshaft 13 passes torque to lower cardan assembly 14, and lower cardan assembly 14 will
Torque passes to steering gear, drives plumbing arm, pull bar, ladder frame and wheel by steering gear, realizes the steering of vehicle.
E) friction plate is slided and locking process：As shown in Figure 3, Figure 4, cylinder assembly 5 is in ventilation working condition, and cylinder is total
Into the spring assembly compression inside 5, ejecting rod of cylinder is pushed back, and is fixed on three groups of upper friction plates 16 on column jecket 6 by the firm of itself
Property three groups on the flat state, with mounting bracket assembly 1 under friction plate 19 there is gap.When promoting or rotating column jecket 6, on
Friction plate 16 and the lower relative motion of friction plate 19, realize the motion of column jecket 6；When cylinder assembly 5 dies working condition, cylinder
Spring assembly inside assembly 5 releases push rod, and push rod promotes three groups of upper friction plates 16, the modification of upper friction plate 16, with mounting bracket
Friction plate 19 is fitted under three groups on assembly 1.Upper friction plate 16 is unable to relative motion with lower friction plate 19, realizes the lock of column jecket 6
Only.
Steering wheel regulatory function process：
Steering wheel angle is adjusted：
Driver's hand holds steering wheel, and the button 2-1 that left foot is stepped on air valve switch 2, vehicle body air accumulator source of the gas passes through gas
Threshold switch air inlet pipe 3 and air valve switch escape pipe 4 are connected with the cylinder assembly 5 on tubing string, and cylinder assembly 5 is total by mounting bracket
Gap (i.e. friction plate group resets, and relative can slide) is isolated with column jecket 6 into 1, steering wheel drives steering spindle 9 to be transported with column jecket 6
Dynamic, the sliding sleeve 7 that the rotating shaft screw bolt 8 on column jecket 6 can be embedded on mounting bracket assembly 1 rotates, and realizes the angle of steering wheel
Degree regulation；
The regulation of steering wheel upper-lower position：
, can be real with steering wheel Stroke Control region 1-2 by chute 1-1 while the angular adjustment of steering wheel
The upper-lower position regulation of existing steering wheel.Specially：Rotating shaft screw bolt 8 on column jecket 6 can drive sliding sleeve 7 along mounting bracket assembly 1
On chute 1-1 move along a straight line, meanwhile, on column jecket 6 control bearing pin 21 the left inside side of mounting bracket assembly 1 steering wheel
Moved in the 1-2 of Stroke Control region, so as to realize the upper-lower position regulation of steering wheel.Fitted when steering wheel is adjusted a homogeneous example showing an inverse connection between the middle term and the major term by driver
Position after, pin leaves the button 2-1 on air valve switch 2, and vehicle body source of the gas disconnects with the cylinder assembly 5 on tubing string, while air valve
Switch 2 is discharged the gas in the cylinder assembly 5 on tubing string by air valve switch escape pipe 4, and cylinder assembly 5 is total by mounting bracket
Fixed into 1 with column jecket 6, steering column and steering wheel latched position, it is achieved thereby that the regulation of steering wheel position.
It is emphasized that the application is to slide and control bearing pin 21 in steering wheel in chute 1-1 by rotating shaft screw bolt 8
Slided in the 1-2 of Stroke Control region, the motion to control column jecket 6 of these two aspects, so that the position adjustments of control direction disk,
(in fact, used because controlling the motion of column jecket 6 that column jecket 6 can be made more to stablize during running by two points
Rotating shaft screw bolt 8 or control bearing pin 21 also can be achieved on the operation of column jecket 6, but be not sufficiently stable).
Further, with reference to Fig. 3-5, the application is provided with torque spring 23, the end of torque spring 23 in the inner side of column jecket 6
The tip is provided with support block 25, and spring slide-way 24 is provided with mounting bracket assembly 1, and the support block 25 can be along the bullet
Spring slideway 24 slidably reciprocates.
Specifically, layout has layout on torque spring 23, mounting bracket assembly 1 to have spring slide-way 24, torsion on column jecket 6
Spring 23 is moved by support block 25 on spring slide-way 24, can so aid in the reset of the post exercise of column jecket 6 position forwards, backwards,
So that column jecket 6 is more stablized during operation, while also allowing for steering wheel regulation more stablizes convenient and swift.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technology of the utility model
The spirit and scope of scheme.
Claims (6)
1. a kind of big stroke pneumatic steering column of vehicle steering, including：Mounting bracket assembly (1), column jecket (6), it is described to install
Bracket assembly (1) is connected by bolt with driver's cabin, and column jecket (6) is connected by bearing (6-3) with steering spindle (9), steering spindle (9)
It is fixedly connected with steering wheel；Characterized in that, being respectively fixedly connected with straight pin on two sides on the inside of mounting bracket assembly (1)
(20) friction plate (19) under can be moved along its axial direction some groups, is separately installed with straight pin (20)；
The symmetrical upper friction with the corresponding and identical group of number in lower friction plate (19) position is provided with column jecket (6)
The gap inserted one by one for friction plate (19) under each group is provided between piece (16), the upper friction plate (16)；
Cylinder assembly (5) is provided with column jecket (6), the push rod of the cylinder assembly (5) can promote the upper friction plate
(16) deform it, so that upper friction plate (16) is tightly fitted with lower friction plate (19)；
The rotating shaft screw bolt (8) on column jecket (6) is connected to be arranged on sliding sleeve (7) in the chute (1-1) of mounting bracket assembly (1),
The control bearing pin (21) being connected on column jecket (6) is arranged on the steering wheel Stroke Control region of mounting bracket assembly (1) left inside side
In (1-2)；When adjusting the position of steering wheel, the control bearing pin (21) is with rotating shaft screw bolt (8) respectively in steering wheel stroke control
Region (1-2) processed in chute (1-1) with moving back and forth.
2. the big stroke pneumatic steering column of vehicle steering according to claim 1, it is characterised in that in column jecket (6)
Inner side is provided with torque spring (23), and the tip of torque spring (23) is provided with support block (25), on mounting bracket assembly (1)
Spring slide-way (24) is provided with, the support block (25) can slidably reciprocate along the spring slide-way (24).
3. the big stroke pneumatic steering column of vehicle steering according to claim 1, it is characterised in that including air valve switch
(2), the bottom plate of air valve switch (2) and driver's cabin is bolted, be provided with the air valve switch (2) air inlet pipe (3) and
Escape pipe (4), the escape pipe (4) is connected with cylinder assembly (5).
4. the big stroke pneumatic steering column of vehicle steering according to claim 1, it is characterised in that the steering spindle
(9) cover assembly (10) by constant velocity cardan joint assembly (11) and ball telescopic shaft to be connected, ball telescopic shaft set assembly (10) passes through
Universal joint assembly (12) is connected with jackshaft (13), and jackshaft (13) is connected by bolt with lower cardan assembly (14), and lower ten thousand
It is connected to section assembly (14) with steering gear.
5. the big stroke pneumatic steering column of vehicle steering according to claim 4, it is characterised in that the jackshaft
(13) the oscillation bearing assembly (15) of Auxiliary support is provided with, oscillation bearing assembly (15) is connected with vehicle body.
6. the big stroke pneumatic steering column of vehicle steering according to claim 1, it is characterised in that column jecket is set on (6)
Be equipped with igniting lockhole (6-1), flange (6-2), it is described igniting lockhole (6-1) be connected with automobile ignition lock, the flange (6-2) and
Stacked switch and sensor, clock spring connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621432081.3U CN206598873U (en) | 2016-12-23 | 2016-12-23 | The big stroke pneumatic steering column of vehicle steering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621432081.3U CN206598873U (en) | 2016-12-23 | 2016-12-23 | The big stroke pneumatic steering column of vehicle steering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206598873U true CN206598873U (en) | 2017-10-31 |
Family
ID=60149236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621432081.3U Expired - Fee Related CN206598873U (en) | 2016-12-23 | 2016-12-23 | The big stroke pneumatic steering column of vehicle steering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206598873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494491A (en) * | 2016-12-23 | 2017-03-15 | 四川绵阳德鑫机械有限公司 | The big stroke pneumatic steering column of vehicle steering |
-
2016
- 2016-12-23 CN CN201621432081.3U patent/CN206598873U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494491A (en) * | 2016-12-23 | 2017-03-15 | 四川绵阳德鑫机械有限公司 | The big stroke pneumatic steering column of vehicle steering |
| CN106494491B (en) * | 2016-12-23 | 2019-09-03 | 四川绵阳德鑫机械有限公司 | The big stroke pneumatic steering column of vehicle steering wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171031 Termination date: 20201223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |