CN107697019A - A kind of pedestrian crus protection device for automobiles - Google Patents
A kind of pedestrian crus protection device for automobiles Download PDFInfo
- Publication number
- CN107697019A CN107697019A CN201710811788.8A CN201710811788A CN107697019A CN 107697019 A CN107697019 A CN 107697019A CN 201710811788 A CN201710811788 A CN 201710811788A CN 107697019 A CN107697019 A CN 107697019A
- Authority
- CN
- China
- Prior art keywords
- air bag
- pedestrian
- tear line
- airbag housing
- protection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000001699 lower leg Anatomy 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000006260 foam Substances 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 claims description 4
- 230000035939 shock Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 25
- 230000002633 protecting effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 206010039203 Road traffic accident Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 210000002414 leg Anatomy 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000018982 Leg injury Diseases 0.000 description 1
- 206010061225 Limb injury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 210000003423 ankle Anatomy 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000004439 collateral ligament Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 210000003052 knee medial collateral ligament Anatomy 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
- B60R21/36—Protecting non-occupants of a vehicle, e.g. pedestrians using airbags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
- B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
- B60R2021/0053—Legs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
The present invention is not under the premise of front end arrangement and approach angle is influenceed, there is provided a kind of brand-new pedestrian crus protection device for automobiles, realizes and carries out omnibearing protection to pedestrian shank in front shock.The present invention is made up of automotive front end crash sensor, gas generator, airbag housing, air bag, nozzle, and the automotive front end crash sensor is connected with gas generator, for triggering gas generator when being touched before pedestrian and automobile occur；The air bag is located in airbag housing, and airbag housing is fixed on the front of water tank sill by support, and the gas generator is arranged on the upper surface of water tank sill, and passes through nozzle and airbags；The front lower horizontal of airbag housing is provided with the tear line of strip, so as to deploy forward and downward along tear line direction after air bag expansion.The present invention requires small to front end arrangement space, is easy to arrange and installs, and does not influence the original structure of vehicle and space arrangement, the requirement on vehicle approach angle are wider without influence, applicable vehicle.
Description
Technical field
The invention belongs to field of automobile safety, and in particular to a kind of pedestrian crus protection device for automobiles.
Background technology
With the increasingly raising of the constantly improve of road traffic road conditions, and living standards of the people, automobile progressively comes into thousand
Ten thousand families of family, national car ownership are constantly soaring.Thing followed traffic accident surges also has asked into more serious society
Topic.Crystallization of the mechanical transport as human development progress, makes the historical progress of human development thoroughly change.It is comfortable and convenient
It is the positive effect brought to the mankind；At the same time, some negative effects are also following.Automobile as one of negative effect
Traffic accident is exactly that wherein most serious, harm are maximum.The road traffic accident situation in China is more serious at present, caused by damage
Hinder consequence can not be ignored, and occupy in the trend constantly risen, annual toll on traffic first of the world.Pedestrian's conduct
Disadvantaged group, its injures and deaths accounting are larger.Therefore, the development of traffic protection technique has important practical significance.Also, Europe
Alliance area was enforced early in 2005 using pedestrian protecting as regulation, and Euro NCAP also have the score-system of correlation.Most
Closely, C-NCAP has also brought pedestrian protecting into schedule, it is seen that the development of pedestrian protecting technology is particularly important.
At present, the protection on leg under pedestrian, mostly using in the similar preceding row for protecting beam structure of headstock lower end increase
People's shank protects crossbeam, to limit the inside bending of pedestrian's shank during colliding, so as to protect shank to reduce injury
Degree.But the arrangement of shank protection crossbeam is limited by arrangement space and restraining factors are more.It is liftoff for some
The higher vehicle in gap（Such as the vehicle such as SUV, MPV）, more strict is required to approach angle in its arrangement, it is desirable to have enough
Big approach angle, and preferably passing through property of vehicle.When this requires that vehicle is arranged, parts minimum point will have enough from the ground
Distance, front end protective device is also of a relatively high, and this virtually just weakens traditional shank and protects crossbeam under pedestrian in collision
The protecting effect of leg, more seriously because of the isostructural arrangement requirement of wind deflector, it is difficult to there is space arrangement pedestrian shank to protect
Guard beam.
The content of the invention
The purpose of the present invention be do not influence front end arrangement and approach angle under the premise of, there is provided a kind of brand-new pedestrian is small
Leg protection device, realize and omnibearing protection is carried out to pedestrian shank in front shock.
The present invention pedestrian crus protection device for automobiles by automotive front end crash sensor, gas generator, airbag housing,
Air bag, nozzle are formed, and the automotive front end crash sensor is connected with gas generator, for before pedestrian and automobile occur
Gas generator is triggered when touching；The air bag is located in airbag housing, and airbag housing is fixed on water tank sill by support
Front, the gas generator are arranged on the upper surface of water tank sill, and pass through nozzle and airbags；Before airbag housing
Square lower horizontal is provided with the tear line of strip, so as to deploy forward and downward along tear line direction after air bag expansion.
When automotive front end crash sensor detects that pedestrian touches before occurring with automobile, control letter is sent to gas generator
Number, gas generator moment produces a large amount of gases, and gas is entered in air bag by nozzle, expands airbag aeration, and then make gas
Softgel shell body ftractures along tear line, and air bag deploys forward and downward along tear line direction, finally in flat strip, covers whole row
People's shank collision area, effectively barrier obstacle is formed in lower leg height region, is prevented at shank bottom and ankle in an impact
The movement tendency bored under to underbody, protection is formd to pedestrian.
Further, after the air bag expansion, the front end of air bag is concordant with preceding guarantor's foam front end of automobile, so passes through
Upper and lower two fulcrums form support protection effective to shank, both can guarantee that and have effectively prevented shank from damaging to boring under underbody,
Have can avoid pedestrian because lower end support is excessively prominent cause upper body be poured over backward automobile enging cabin cover and caused by hinder
Evil.
Further, the maximum height of air bag drops down is more than air bag to the distance on ground, so that after air bag expansion, gas
The front end bottom surface of capsule contacts with ground, and so as to cover the space from water tank upper beam to ground, protection is more comprehensive.
Further, the rear end of the support is fixedly connected by bolt and nut with water tank sill, the front of support
It is fixedly connected with airbag housing, so that airbag housing protrudes from forward water tank sill.Above-mentioned support can use strip or
Laminated structure, here is omitted.
Further, the automotive front end crash sensor is fixed between preceding guarantor's crossbeam of automobile and preceding guarantor's foam, with
It is more accurately detected before pedestrian occurs with automobile and touches.
Further, the middle position on the downside of the front of the airbag housing is provided with vertical auxiliary tear line, described auxiliary
Help tear line orthogonal with tear line；The intersection point direction of the nozzle face auxiliary tear line and tear line.Housing is torn in auxiliary
Intensity at the position of intersecting point of line and tear line is the weakest, and after gas generator is triggered, gas is from touching mouth into air bag
Pour in, the position near in air bag can first expanded, can now make the auxiliary tear line and tear line of airbag housing
Position of intersecting point tear, while deploying with air bag to both sides, airbag housing both sides also gradually start to tear so that
Air bag can drill out airbag housing along tear line and gradually outwards, to both sides deploy while expansion, so avoid because
Airbag housing intensity is consistent and causes air bag to drill out the uncertainty of position from airbag housing and drill out possibility not in time.
Further, the tear line extends to the both sides of airbag housing, and such airbag housing can be complete along tear line
Cracking, is easy to airbag deployment, especially for air bag both sides, reduces resistance.
The pedestrian crus protection device for automobiles protecting effect of the present invention is good, and requires small to front end arrangement space, is easy to cloth
Put and install, do not influence the original structure of vehicle and space arrangement, requirement on vehicle approach angle without influence, applicable vehicle compared with
Extensively.
Brief description of the drawings
Fig. 1 is the isometric view of the pedestrian crus protection device for automobiles of the present invention（Air bag undeployed configuration）.
Fig. 2 is the isometric view of the pedestrian crus protection device for automobiles of the present invention（Airbag deployment state）.
Fig. 3 is the side view of the pedestrian crus protection device for automobiles of the present invention（Air bag undeployed configuration）.
Fig. 4 is the side view of the pedestrian crus protection device for automobiles of the present invention（Airbag deployment state）.
Fig. 5 is the partial schematic diagram of the pedestrian crus protection device for automobiles of the present invention（Air bag undeployed configuration）.
Fig. 6 is the partial schematic diagram of the pedestrian crus protection device for automobiles of the present invention（Airbag deployment state）.
Fig. 7 is the front view of the airbag housing of embodiment 1.
Fig. 8 is the front view of the airbag housing of embodiment 2.
Accompanying drawing indicates：1st, automotive front end crash sensor；2nd, gas generator；3rd, airbag housing；4th, air bag；5th, nozzle；
6th, preceding guarantor's crossbeam；7th, preceding guarantor's foam；8th, support；9th, water tank sill；10th, tear line；11st, tear line is aided in；12nd, shank is tested
Impinger.
Embodiment
Below against accompanying drawing, by the description to embodiment, for example involved to the embodiment of the present invention is each
Mutual alignment and annexation, the effect of each several part and operation principle between the shape of component, construction, each several part etc. are made into one
The detailed description of step.
Embodiment 1：
As illustrated, the pedestrian crus protection device for automobiles of the present embodiment by automotive front end crash sensor 1, gas generator 2,
Airbag housing 3, air bag 4, nozzle 5 are formed, and automotive front end crash sensor 1 is fixed on preceding guarantor's crossbeam 6 of automobile and preceding guarantor's foam 7
Between, and be connected with gas generator 2, for triggering gas generator 2 when being touched before pedestrian and automobile occur；The air bag
4 in airbag housing 3, and airbag housing 3 is fixed on the front of water tank sill 9 by support 8, and the gas generator 2 is pacified
It is connected mounted in the upper surface of water tank sill 9, and by nozzle 5 with air bag 4；The rear end of support 8 passes through bolt and nut and water
Case sill 9 is fixedly connected, and the front of support 8 is fixedly connected with airbag housing 3, so that airbag housing 3 protrudes from forward water tank
Sill 9.The front lower horizontal of airbag housing 3 is provided with the tear line 10 of strip, and tear line 10 extends to the two of airbag housing 3
Side, such airbag housing 3 can along the instant of complete cracking of tear line 10 so that air bag 4 expand after along the direction of tear line 10 forward and to
Lower expansion.
The maximum height of the drops down of air bag 4 is more than air bag 4 to the distance on ground, and is set by angle adjustment and size
Meter so that after air bag 4 expands, the front end of air bag 4 is concordant with the preceding front end of guarantor's foam 7 of automobile, so passes through upper and lower two branch
Point forms support protection effective to shank, both can guarantee that and has effectively prevented shank from damaging to boring under underbody, having can avoid going
The enging cabin that people causes upper body to be poured over automobile backward because lower end support is excessively prominent is covered and damaged；And air bag
4 front end bottom surface contacts with ground, and so as to cover the space from water tank upper beam to ground, protection is more comprehensive.
Automotive front end crash sensor 1 detects pedestrian（Shank experiment impinger 12 in such as figure）Touched before occurring with automobile
When, control signal is sent to gas generator 2, the moment of gas generator 2 produces a large amount of gases, and gas enters gas by nozzle 5
In capsule 4, make the inflation of air bag 4, and then airbag housing 3 is ftractureed along tear line 10, air bag 4 along the direction of tear line 10 forward and
Drops down, and Fast Filling headstock lower surface forms barrier, so as to reach effective resistance to this segment space of ground in car bottom
The only motion of the inside whipping in pedestrian shank bottom, is controlled lower leg portion bending amplitude, so that in collision process significantly
Reduce leg injury；Air bag 4 and preceding guarantor's crossbeam 6 and foam are in longitudinal collective effect, two points one lines of formation simultaneously（Base i.e. in figure
Directrix L1）Support modes, the stable relative motion for controlling pedestrian's leg knee up-down structure, so that knee medial ligament
Elongation and lateral ligament elongation are effectively reduced.
In the experiment of pedestrian protecting shank, this four indexs of T1, T2, T3, T4 can be effectively controlled, to reducing ligament
Elongation also has larger help.So as to reach the purpose for protecting pedestrian shank to greatest extent, vehicle is improved to pedestrian protecting
Security performance and good experiment performance.
Embodiment 2：
As different from Example 1, in the present embodiment, the middle position on the downside of the front of airbag housing 3 is provided with vertically auxiliary
Tear line 11 is helped, it is described to aid in tear line 11 orthogonal with tear line 10；The face of the nozzle 5 auxiliary tear line 11 and tear line 10
Intersection point direction.Intensity of the housing at position of intersecting point of the auxiliary tear line 11 with tear line 10 is the weakest, occurs in gas
After device 2 is triggered, gas is poured in from touching mouth into air bag 4, and the position near in air bag 4 can first expanded, is now
Can tear the position of intersecting point of auxiliary tear line 11 and the tear line 10 of airbag housing 3, with air bag 4 deploy to both sides it is same
When, the both sides of airbag housing 3 also gradually start to tear, so that air bag 4 while expansion, can drill out gas along tear line 10
Softgel shell body 3 and gradually outwards, to both sides deploy, so avoid to cause air bag 4 from air bag because the intensity of airbag housing 3 is consistent
Housing 3 drills out the uncertainty of position and drills out possibility not in time.
Claims (7)
1. a kind of pedestrian crus protection device for automobiles, it is characterised in that by automotive front end crash sensor, gas generator, air bag
Housing, air bag, nozzle are formed, and the automotive front end crash sensor is connected with gas generator, in pedestrian and automobile
Gas generator is triggered when being touched before generation；The air bag is located in airbag housing, and airbag housing is fixed under water tank by support
The front of crossbeam, the gas generator are arranged on the upper surface of water tank sill, and pass through nozzle and airbags；Air bag shell
The front lower horizontal of body is provided with the tear line of strip, so as to deploy forward and downward along tear line direction after air bag expansion.
2. pedestrian crus protection device for automobiles according to claim 1, it is characterised in that after the air bag expansion, air bag
Front end is concordant with preceding guarantor's foam front end of automobile.
3. pedestrian crus protection device for automobiles according to claim 2, it is characterised in that the maximum of air bag drops down is high
Degree is more than air bag to the distance on ground, so that after air bag expansion, the front end bottom surface of air bag contacts with ground.
4. according to the pedestrian crus protection device for automobiles described in claim 1 or 2 or 3, it is characterised in that the rear end of the support
It is fixedly connected by bolt and nut with water tank sill, the front of support is fixedly connected with airbag housing, so that airbag housing
Water tank sill is protruded from forward.
5. according to the pedestrian crus protection device for automobiles described in claim 1 or 2 or 3, it is characterised in that the automotive front end touches
Sensor is hit to be fixed between preceding guarantor's crossbeam of automobile and preceding guarantor's foam.
6. according to the pedestrian crus protection device for automobiles described in claim 1 or 2 or 3, it is characterised in that the airbag housing
Middle position on the downside of front is provided with vertical auxiliary tear line, and the auxiliary tear line is orthogonal with tear line；The nozzle is just
To the intersection point direction of auxiliary tear line and tear line.
7. pedestrian crus protection device for automobiles according to claim 6, it is characterised in that the tear line extends to air bag
The both sides of housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710811788.8A CN107697019A (en) | 2017-09-11 | 2017-09-11 | A kind of pedestrian crus protection device for automobiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710811788.8A CN107697019A (en) | 2017-09-11 | 2017-09-11 | A kind of pedestrian crus protection device for automobiles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107697019A true CN107697019A (en) | 2018-02-16 |
Family
ID=61172479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710811788.8A Pending CN107697019A (en) | 2017-09-11 | 2017-09-11 | A kind of pedestrian crus protection device for automobiles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107697019A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001334895A (en) * | 2000-05-26 | 2001-12-04 | Mazda Motor Corp | Pedestrian protection device for vehicle |
| CN1590166A (en) * | 2003-08-26 | 2005-03-09 | 高田株式会社 | Leg protection device |
| CN1712279A (en) * | 2004-06-15 | 2005-12-28 | 高田株式会社 | Airbag cover and airbag system |
| CN1730271A (en) * | 2004-08-06 | 2006-02-08 | 高田株式会社 | Method for manufacturing airbag cover |
| CN102826067A (en) * | 2012-09-06 | 2012-12-19 | 北京汽车股份有限公司 | Supplemental restraint system cover board, supplemental restraint system and automobile |
| CN102826061A (en) * | 2011-06-17 | 2012-12-19 | 现代自动车株式会社 | External air bag for vehicle |
| CN202764910U (en) * | 2012-07-31 | 2013-03-06 | 延锋彼欧汽车外饰***有限公司 | Pedestrian protection device of car |
| CN103129510A (en) * | 2013-02-27 | 2013-06-05 | 浙江吉利汽车研究院有限公司杭州分公司 | Protecting device for preventing pedestrian shank diving and method thereof |
| CN203946059U (en) * | 2013-05-14 | 2014-11-19 | 现代摩比斯株式会社 | Pedestrian's protection air bag module |
-
2017
- 2017-09-11 CN CN201710811788.8A patent/CN107697019A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001334895A (en) * | 2000-05-26 | 2001-12-04 | Mazda Motor Corp | Pedestrian protection device for vehicle |
| CN1590166A (en) * | 2003-08-26 | 2005-03-09 | 高田株式会社 | Leg protection device |
| CN1712279A (en) * | 2004-06-15 | 2005-12-28 | 高田株式会社 | Airbag cover and airbag system |
| CN1730271A (en) * | 2004-08-06 | 2006-02-08 | 高田株式会社 | Method for manufacturing airbag cover |
| CN102826061A (en) * | 2011-06-17 | 2012-12-19 | 现代自动车株式会社 | External air bag for vehicle |
| CN202764910U (en) * | 2012-07-31 | 2013-03-06 | 延锋彼欧汽车外饰***有限公司 | Pedestrian protection device of car |
| CN102826067A (en) * | 2012-09-06 | 2012-12-19 | 北京汽车股份有限公司 | Supplemental restraint system cover board, supplemental restraint system and automobile |
| CN103129510A (en) * | 2013-02-27 | 2013-06-05 | 浙江吉利汽车研究院有限公司杭州分公司 | Protecting device for preventing pedestrian shank diving and method thereof |
| CN203946059U (en) * | 2013-05-14 | 2014-11-19 | 现代摩比斯株式会社 | Pedestrian's protection air bag module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180216 |
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| RJ01 | Rejection of invention patent application after publication |