CN102145704A - Protective mechanism for collision collapse of steering column - Google Patents
Protective mechanism for collision collapse of steering column Download PDFInfo
- Publication number
- CN102145704A CN102145704A CN 201110062113 CN201110062113A CN102145704A CN 102145704 A CN102145704 A CN 102145704A CN 201110062113 CN201110062113 CN 201110062113 CN 201110062113 A CN201110062113 A CN 201110062113A CN 102145704 A CN102145704 A CN 102145704A
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- tube column
- steering gear
- outer tube
- protection mechanism
- column body
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- 230000009979 protective mechanism Effects 0.000 title abstract 4
- 230000007246 mechanism Effects 0.000 claims description 33
- 210000002435 tendon Anatomy 0.000 claims description 15
- 230000013011 mating Effects 0.000 claims description 14
- 238000009826 distribution Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Abstract
The invention discloses a protective mechanism for the collision collapse of a steering column, which comprises an inner tubular column body and an outer tubular column body, wherein one end of the outer tubular column body is sleeved on the inner tubular column body; the protective mechanism also comprises a fixed seat, an adjusting bracket and a fixing piece, wherein the fixed seat is arranged on the outer tubular column body, a sliding groove is arranged on the fixed seat, the adjusting bracket is fixed on a mounting bracket of the steering column through a connecting piece, an open groove provided with an opening at the side away from the inner tubular column body is arranged at the joint of the adjusting bracket and the connecting piece, a matching groove is arranged at a position of the adjusting bracket opposite to the sliding groove, and the fixing piece penetrates through the sliding groove and the matching groove so as to lock the adjusting bracket and the fixed seat. When an end of a steering wheel is subjected to an axial force, the fixing piece escapes from the open groove of the adjusting bracket, and the outer tubular column body collapses towards the inner tubular column body; and when the position of the steering wheel needs to adjust, the fixing piece can be released, and the outer tubular column body can axially move along the inner tubular column body so as to adjust the axial position of the steering wheel; moreover, the functions of the axial adjustment and the collision collapse can be fulfilled simultaneously, and the protective mechanism has the advantages of stability, reliability and easiness for industrialized production.
Description
Technical field
The present invention relates to the steering column for vehicles technical field, particularly a kind of Steering gear collision crumple protection mechanism.
Background technology
As everyone knows, after the collision happens, kinematic velocity moment changes a lot, and the passenger is because inertia can continue preshoot, bump i.e. secondary collision, and the secondary collision injured major cause of occupant often with hard thing such as bearing circle, the instrument carrier panel etc. in the place ahead in the car.
Since safety air bag appearred in nineteen fifties, people had obtained considerable progress in master, the passive security field of automobile.With regard to the passive security field, safety air bag develops into present twin-stage even multistage by the single-stage in past, and gas generator is also developed into hybrid etc. by initial pyrotechnic, and ECU also develops to intelligent direction gradually through multi-dimensional development; The safety strap belt with pre-load device that also become basically universal.We can say that the safety measure of vehicle is very perfect now.
But, vehicle for some type, emphasis is a minivan, because the restriction of interior space, the distance of chaufeur range direction dish is very limited, and vehicle does not have the long vehicle head as the crusherbull zone district, in case bump, the time of chaufeur and bearing circle generation secondary collision will be very short, and since Steering gear and bearing circle in invade (Steering gear Chao Chenei motion vertically), cause from colliding deficiency of time that secondary collision takes place, and safety air bag momentum upon deployment is very large so that safety air bag is thoroughly opened, as in this process, coming in contact, will cause very big injury to chaufeur.
Crumple formula Steering gear is place in operation very early, and it increases one or more connecting pins in the middle of Steering gear, and Steering gear is made up of first Steering gear and second Steering gear two parts, and the two is by the connecting pin captive joint.This connecting pin is generally made by plastic or other material, has certain shearing strength value, can be cut off after collision happens, makes that Steering gear can be in axial shortening, thus the impact that alleviates the suffered bearing circle of chaufeur.But existing Steering gear mostly is absolute construction, and the Steering gear that promptly has collision crumple function does not have the axial adjustment effect.
Need a kind of Steering gear collision crumple protection mechanism that has axial adjustment effect and collision crumple function concurrently at present badly.
Summary of the invention
In view of this, the invention provides a kind of Steering gear collision crumple protection mechanism, to have axial adjustment effect and collision crumple defencive function simultaneously.
For achieving the above object, the invention provides following technical scheme:
A kind of Steering gear collision crumple protection mechanism, a tube column and an end are set in the outer tube column on the described interior tube column in comprising, also comprise:
Be arranged on the permanent seat on the described outer tube column, which is provided with chute;
Be fixed on the adjusting support on the mounting bracket of Steering gear by attaching parts, the junction of itself and described attaching parts is provided with to the open slot away from a side opening of tube column in described, and the position that this adjusting support is relative with described chute is provided with mating groove;
Pass described chute and mating groove, to lock the connecting element of described adjusting support and permanent seat.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, described chute is a bar-shaped trough, and the axially parallel of its length direction and described outer tube column.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, an end and the described outer tube column free-running fit of described interior tube column, the other end radially is provided with some convex tendons along it, the endoporus interference fit of the circumscribing circle of some convex tendons and described outer tube column.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, described convex tendon is 3-5, and in described the circumferencial direction rectangular distribution of tube column.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, also comprise the slippage maintainance set that is arranged between described interior tube column and the described outer tube column, this slippage maintainance set and described interior tube column interference fit are with described outer tube column free-running fit.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, described convex tendon and the described interior tube column structure that is formed in one.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, described connecting element is a bolt.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, described permanent seat is welded on the described outer tube column.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, described attaching parts specifically comprises screw and the nut that is threaded.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, also comprise being set on the described screw, and be arranged on described mounting bracket and regulate pad between the support.
From above-mentioned technical scheme as can be seen, the present invention fixes a permanent seat on the tube column outside, and on this permanent seat chute is set; The adjusting support is set on the mounting bracket of Steering gear, and is provided with in the junction of itself and attaching parts, regulate that at this mating groove relative with chute also being set on support to open slot away from a side opening of interior tube column.Regulate support and decide to lock adjusting support and permanent seat by connecting element after moment connects, so that itself and outer tube column form integral body by attaching parts and mounting bracket.
In practice operation, when the bearing circle end was subjected to axial force, the inside tube column direction of outer tube column pressurized moved.Because outer tube column connects into an integral body by attaching parts and connecting element and adjusting support and fixed mounting bracket respectively, so outer tube column has the trend that the inside tube column direction of support moves of regulating that drives, when tube column moves to the accommodation limit position outside, because mounting bracket maintains static, so driving, outer tube column regulates the coupling mechanism force that support overcomes attaching parts, make attaching parts from the open slot of regulating support, deviate from the crumple of the inside tube column direction of outer tube column.
When needs are regulated the position of bearing circle, only need the outer tube column of adjustment to get final product with respect to the position of interior tube column, the present invention can be by unclamping connecting element, make outer tube column break away from the restriction of mounting bracket, can when being adjusted to correct position, pass chute and mating groove along the moving axially of interior tube column by connecting element, support and permanent seat are regulated in locking, to limit moving axially of outer tube column by regulating support and mounting bracket.
Steering gear collision crumple protection mechanism provided by the invention is simple in structure, and tooling cost is low, satisfies axial adjustment and collision crumple function simultaneously, and reliable and stable, is easy to suitability for industrialized production.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The Steering gear that Fig. 1 provides for the embodiment of the invention collides the sectional structure scheme drawing of crumple protection mechanism;
Fig. 2 is the cutaway view of Fig. 1 along the A-A line.
The specific embodiment
The invention discloses a kind of Steering gear collision crumple protection mechanism, to have axial adjustment effect and collision crumple defencive function simultaneously.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
See also Fig. 1 and Fig. 2, the Steering gear that Fig. 1 provides for the embodiment of the invention collides the sectional structure scheme drawing of crumple protection mechanism, and Fig. 2 is the cutaway view of Fig. 1 along the A-A line.
Steering gear collision crumple protection mechanism provided by the invention, tube column 1, outer tube column 3, permanent seat 10, adjusting support 8 and connecting element 9 in comprising.Wherein, an end of outer tube column 3 is set on the interior tube column 1, an end mutual sheathing of promptly outer tube column 3 and interior tube column 1.Permanent seat 10 is arranged on the outer tube column 3, which is provided with chute 101, and the purpose that permanent seat 10 is set is to be convenient to and regulates being connected of support 8.
Regulate support 8 and be fixed on by attaching parts on the mounting bracket 6 of Steering gear, mounting bracket 6 is the rack section of Steering gear, and it is fixed.The junction of regulating support 8 and attaching parts is provided with to the open slot away from a side opening of tube column in described 1, and this adjusting support 8 and described chute 101 relative positions are provided with mating groove.By open slot is set, when adjusting support 8 is subjected to the power of inside tube column 1 direction,, will overcome the coupling mechanism force of attaching parts if this power acquires a certain degree, make attaching parts break away from open slot, regulate support and continue mobile.Therefore, the locking torque of above-mentioned attaching parts also is the amount of a need control, according to the suffered axial normal force of bearing circle, set the required axial force of locating on the adjusting of the attaching parts disengaging herein support 8 of open slot, the condition that needs to satisfy is that attaching parts breaks away from the required axial force of regulating on the support 8 of open slot should be greater than the suffered axial normal force of bearing circle.Thereby when bearing circle is subjected to improper external force, regulates support 8 and can break away from mounting bracket 6, the crumple function takes place.
Connecting element 9 passes described chute 101 and mating groove, locks described adjusting support 8 and permanent seat 10.Connecting element 9 can be bolt, and after connecting element 9 will be regulated support 8 and permanent seat 10 lockings, adjusting support 8, outer tube column 3 just became as a whole with mounting bracket 6.Have only outside that tube column 3 is subjected to larger axis when power, regulate support 8 and just can break away from mounting bracket 6, follow outer tube column 3 inside tube column 1 directions and move.
Attaching parts can specifically comprise screw 7 and the nut 5 that is threaded, and nut by screw 7 and nut 5 compress mounting bracket 6 and regulate support 8.Between described mounting bracket 6 and adjusting support 8, also be provided with the pad 4 that is set on the described screw 7.Pad 4 is a pourable resin chock, and nut 5 is a square nut.
The present invention fixes a permanent seat 10 (for example permanent seat 10 can be welded on the outer tube column 3) on the tube column outside, and on this permanent seat 10 chute 101 is set; On the mounting bracket 6 of Steering gear, be provided with and regulate support 8, and be provided with in its junction, regulate on support 8 the relative mating groove of also setting and chute 101 at this to open slot away from a side opening of interior tube column 1 with attaching parts.Regulate support 8 and decide to regulate support 8 and permanent seats 10 by connecting element 9 lockings after moment connects, so that itself and outer tube column 3 formation integral body by attaching parts and mounting bracket 6.
In practice operation, when the bearing circle end was subjected to axial force, inside tube column 1 direction of outer tube column 3 pressurizeds moved.Because outer tube column 3 connects into an integral body by attaching parts and connecting element and adjusting support 8 and fixed mounting bracket 6 respectively, so outer tube column 3 has the trend that support 8 inside tube column 1 directions move of regulating that drives, when tube column 3 moves to the accommodation limit position outside, because mounting bracket 6 maintains static, so driving, outer tube column 3 regulates the coupling mechanism force that support 8 overcomes attaching parts, make connecting element from the open slot of regulating support 8, deviate from outer tube column 3 inside tube column 1 direction crumples.
When needs are regulated the position of bearing circle, only need the outer tube column 3 of adjustment to get final product with respect to the position of interior tube column 1, the present invention can be by unclamping connecting element 9, make outer tube column 3 break away from the restriction of mounting bracket 6, can when being adjusted to correct position, pass chute 101 and mating groove along the moving axially of interior tube column 1 by connecting element, support 8 and permanent seat 10 are regulated in locking, with moving axially by adjusting support 8 and the mounting bracket 6 outer tube columns 3 of restriction.
Steering gear collision crumple protection mechanism provided by the invention is simple in structure, and tooling cost is low, satisfies axial adjustment and collision crumple function simultaneously, and reliable and stable, is easy to suitability for industrialized production.
One end of interior tube column 1 and described outer tube column 3 free-running fits, the other end radially is provided with some convex tendons 11 along it, the endoporus interference fit of the circumscribing circle of some convex tendons 11 and described outer tube column 3.Promptly when inside tube column 1 direction crumple, outer tube column 3 moves to convex tendon 11 positions since with convex tendon 11 interference fit, protect structure so outer tube column 3 forms the crumple of interference damp impacts with interior tube column, the axial force that acts on the outer tube column 3 is laid down.Convex tendon 11 can be 3-5, and circumferencial direction rectangular distribution along described interior tube column 1, be preferably 4, in being distributed in along 90 ° on the circumference of tube column 1, tube columns 1 structure that is formed in one in convex tendon 11 is preferred and described, be easy to processing, in moulding, during tube column 1, can mold convex tendon 11.
The present invention also can comprise the slippage maintainance set 2 that is arranged between described interior tube column 1 and the described outer tube column 3, and this slippage maintainance set 2 and described interior tube column 1 interference fit are with described outer tube column 3 free-running fits.Slippage maintainance set 2 can not be excessive with the gap of outer tube column 3, as long as guarantee the smooth slippage of inner and outer pipe cylinder, excessive clearance easily causes abnormal sound.
Simple, the stable performance of structure process and assemble of the present invention, but the outer tube cylinder axis to regulatory function and collision crumple defencive function independent operating, mutually noninterfere can be carried out large batch of suitability for industrialized production.
Each embodiment adopts the mode of going forward one by one to describe in this specification sheets, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. a Steering gear collision crumple protection mechanism comprises that an interior tube column (1) and an end are set in the outer tube column (3) on the described interior tube column (1), it is characterized in that, also comprises:
Be arranged on the permanent seat (10) on the described outer tube column (3), which is provided with chute (101);
Be fixed on the adjusting support (8) on the mounting bracket (6) of Steering gear by attaching parts, the junction of itself and described attaching parts is provided with to the open slot away from a side opening of tube column in described (1), and the position that this adjusting support (8) is relative with described chute (101) is provided with mating groove;
Pass described chute (101) and mating groove, to lock the connecting element (9) of described adjusting support (8) and permanent seat (10).
2. Steering gear collision crumple protection mechanism as claimed in claim 1 is characterized in that described chute (101) is a bar-shaped trough, and the axially parallel of its length direction and described outer tube column (3).
3. Steering gear collision crumple protection mechanism as claimed in claim 1; it is characterized in that; an end and described outer tube column (3) free-running fit of tube column (1) in described; the other end radially is provided with as if thousand convex tendons (11) along it, if the circumscribing circle of thousand convex tendons (11) and the endoporus interference fit of described outer tube column (3).
4. Steering gear as claimed in claim 3 collision crumple protection mechanism is characterized in that described convex tendon (11) be 3-5, and along the circumferencial direction rectangular distribution of described interior tube column (1).
5. as claim 3 or 4 described Steering gear collision crumple protection mechanisms; it is characterized in that; also comprise the slippage maintainance set (2) that is arranged between described interior tube column (1) and the described outer tube column (3); this slippage maintainance set (2) and described interior tube column (1) interference fit are with described outer tube column (3) free-running fit.
6. Steering gear as claimed in claim 5 collision crumple protection mechanism is characterized in that, described convex tendon (11) with described in tube column (1) structure that is formed in one.
7. as any described Steering gear collision crumple protection mechanism of claim 1-4, it is characterized in that described connecting element (9) is a bolt.
8. as any described Steering gear collision crumple protection mechanism of claim 1-4, it is characterized in that described permanent seat (10) is welded on the described outer tube column (3).
9. as any described Steering gear collision crumple protection mechanism of claim 1-4, it is characterized in that described attaching parts specifically comprises screw (7) and the nut (5) that is threaded.
10. Steering gear as claimed in claim 9 collision crumple protection mechanism is characterized in that, also comprises being set on the described screw (7), and is arranged on pad (4) between described mounting bracket (6) and the adjusting support (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100621130A CN102145704B (en) | 2011-03-15 | 2011-03-15 | Protective mechanism for collision collapse of steering column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100621130A CN102145704B (en) | 2011-03-15 | 2011-03-15 | Protective mechanism for collision collapse of steering column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102145704A true CN102145704A (en) | 2011-08-10 |
| CN102145704B CN102145704B (en) | 2012-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100621130A Active CN102145704B (en) | 2011-03-15 | 2011-03-15 | Protective mechanism for collision collapse of steering column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102145704B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104583054A (en) * | 2012-08-31 | 2015-04-29 | 株式会社捷太格特 | Steering device |
| CN105121254B (en) * | 2013-02-27 | 2017-07-14 | Trw有限公司 | Steering column assembly |
| CN107512304A (en) * | 2017-08-31 | 2017-12-26 | 蒂森克虏伯富奥汽车转向柱(长春)有限公司 | A kind of pilot sleeve component |
| CN107914758A (en) * | 2016-10-07 | 2018-04-17 | 株式会社山田制作所 | Manipulation device |
| CN109843700A (en) * | 2016-10-19 | 2019-06-04 | 蒂森克虏伯普利斯坦股份公司 | The steering column including energy absorbing device for motor vehicles |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1268929A (en) * | 1997-08-29 | 2000-10-04 | 大众汽车有限公司 | Automobile steering assembly |
| CN1301223A (en) * | 1998-05-22 | 2001-06-27 | 克鲁普·普里斯塔公司 | Steering column crash system |
| CN1504371A (en) * | 2002-11-28 | 2004-06-16 | ������������ʽ���� | Steering apparatus |
| CN2709274Y (en) * | 2003-05-14 | 2005-07-13 | 丰田自动车株式会社 | Shock absorbing steering device |
-
2011
- 2011-03-15 CN CN2011100621130A patent/CN102145704B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1268929A (en) * | 1997-08-29 | 2000-10-04 | 大众汽车有限公司 | Automobile steering assembly |
| CN1301223A (en) * | 1998-05-22 | 2001-06-27 | 克鲁普·普里斯塔公司 | Steering column crash system |
| CN1504371A (en) * | 2002-11-28 | 2004-06-16 | ������������ʽ���� | Steering apparatus |
| CN2709274Y (en) * | 2003-05-14 | 2005-07-13 | 丰田自动车株式会社 | Shock absorbing steering device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104583054A (en) * | 2012-08-31 | 2015-04-29 | 株式会社捷太格特 | Steering device |
| CN105121254B (en) * | 2013-02-27 | 2017-07-14 | Trw有限公司 | Steering column assembly |
| CN107914758A (en) * | 2016-10-07 | 2018-04-17 | 株式会社山田制作所 | Manipulation device |
| CN109843700A (en) * | 2016-10-19 | 2019-06-04 | 蒂森克虏伯普利斯坦股份公司 | The steering column including energy absorbing device for motor vehicles |
| CN107512304A (en) * | 2017-08-31 | 2017-12-26 | 蒂森克虏伯富奥汽车转向柱(长春)有限公司 | A kind of pilot sleeve component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102145704B (en) | 2012-07-18 |
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Denomination of invention: Protective mechanism for collision collapse of steering column Effective date of registration: 20171219 Granted publication date: 20120718 Pledgee: Rural credit cooperative association in Fucheng District, Mianyang Pledgor: SICHUAN MIANYANG SANLI Co.,Ltd. Registration number: 2017510000089 |
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Date of cancellation: 20201217 Granted publication date: 20120718 Pledgee: Rural credit cooperative association in Fucheng District, Mianyang Pledgor: SICHUAN MIANYANG SANLI Co.,Ltd. Registration number: 2017510000089 |
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Denomination of invention: Steering column collapse protection mechanism Effective date of registration: 20201221 Granted publication date: 20120718 Pledgee: Rural credit cooperative association in Fucheng District, Mianyang Pledgor: SICHUAN MIANYANG SANLI Co.,Ltd. Registration number: Y2020510000114 |
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Date of cancellation: 20231208 Granted publication date: 20120718 Pledgee: Rural credit cooperative association in Fucheng District, Mianyang Pledgor: SICHUAN MIANYANG SANLI Co.,Ltd. Registration number: Y2020510000114 |
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Denomination of invention: Steering column collision collapse protection mechanism Effective date of registration: 20231214 Granted publication date: 20120718 Pledgee: Mianyang Rural Commercial Bank Co.,Ltd. Fucheng Branch Pledgor: SICHUAN MIANYANG SANLI Co.,Ltd. Registration number: Y2023980070813 |
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