CN104742849B - A kind of knee airbag device - Google Patents
A kind of knee airbag device Download PDFInfo
- Publication number
- CN104742849B CN104742849B CN201510119090.0A CN201510119090A CN104742849B CN 104742849 B CN104742849 B CN 104742849B CN 201510119090 A CN201510119090 A CN 201510119090A CN 104742849 B CN104742849 B CN 104742849B
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- CN
- China
- Prior art keywords
- airbag
- main leaf
- chamber
- suturing part
- knee
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- 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.)
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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
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/205—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards
- B60R21/206—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards in the lower part of dashboards, e.g. for protecting the knees
-
- 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
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
-
- 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
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R2021/23169—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for knee protection
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
The present invention relates to vehicle passive safety engineering device technique field, specifically a kind of knee airbag device, including preceding main leaf, rear main leaf and drawstring.The present invention is compared with the existing technology, airbag bottom has and prior art airbag identical structure close to the position of gas generator, airbag top is divided into left chamber that is separation or semi-detached or being temporarily separated and right chamber room by chamber isolating construction, the airbag thickness of opposite column cover lid boss is reduced or is reduced in airbag expansion early stage thickness, reduce impulsive force and extruding of pushing and interference, reduction airbag of the airbag by column cover lid boss to driver's lower limb.Secondly, the airbag volume that designs of the present invention is smaller or smaller in airbag expansion early stage volume, the airbag gassiness time faster, precalculated position can be deployed into earlier, provide protection against earlier.Again, air bag inflator volume of the present invention can be smaller, can reduce generator output, reduce the weight and cost of knee airbag.
Description
Technical field
The present invention relates to vehicle passive safety engineering device technique field, specifically a kind of knee airbag device.
Background technology
With knee mapping experiment in Euro NCAP（Knee Mapping test）It is required that execution, knee airbag
Counter-measure is selected as by numerous auto vendors, to pass through correlation test, it is to avoid be penalized in star assessment.
Either from theoretical research still from engineering practice, knee airbag can buffer driver and occupant's shank/
Impact between knee and instrument board, and can improve the distribution of seatbelt restraint power suffered by driver and occupant's thorax abdomen,
Reduce peak value of the safety belt to the pressure of human body, reduce injury risk.
Knee airbag is general to be made up of parts such as gas generator, airbag, shell, cover lids.When crashing
When, central control unit ECU sends firing command to knee airbag, and knee airbag is received after firing command, gas
Body generator point is quick-fried and output gas, and gas is full of airbag.Knee airbag is typically mounted at position on the lower side in instrument board.
When knee airbag point is quick-fried, its airbag deploys to be full of from bottom to top, in driver and occupant's shank and knee and instrument board
Between formed inflatable air cushion there is provided buffer protection.
In order to ensure airbag smoothly expansion in place, and constrain airbag along vehicle fore-and-aft direction, i.e. X to thickness, gas
Bag, which is substantially all, to be used in the horizontal direction, i.e. the interior drawstring of Y-direction, and airbag is separated into several in the horizontal direction in strip
Air chamber.Referring to Fig. 1 and Fig. 2, in driver side, column cover lid 5 is raised in position outside instrument board 4 can be airbag to car
Rear is to that is, the direction of driver is pushed, and the expansion action of airbag 1 can be interfered, be influenceed airbag unfoldable shape, and potential
Increase the impulsive force to driver's lower limb.There is extruding between the airbag 1 and driver's lower limb 6 that are full of and interfere.
Accordingly, it would be desirable to design a kind of knee that can reduce column cover lid boss to pushing and the interference of airbag
Air bag device.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art to reduce column cover lid lug boss there is provided one kind
Knee airbag device of the position to pushing and the interference of airbag.
In order to achieve the above object, the present invention devises a kind of knee airbag device, including preceding main leaf, rear main leaf and
Drawstring, preceding main leaf and rear main leaf are stitched into airbag along edge, and being horizontally disposed between preceding main leaf and rear main leaf has some strips
Drawstring, two long sides of drawstring suture the inner surface for being fixed on preceding main leaf and rear main leaf respectively, it is characterised in that：Drawstring is by gas
The lower isolation of bag is into the air chamber of several two ends UNICOMs, and the top of airbag is provided with chamber isolating construction, chamber isolating construction
Both sides are respectively equipped with left chamber and right chamber room, bottom and the air chamber UNICOM of left chamber and right chamber room, and drawstring is by the left chamber of airbag
The left air chamber of several end UNICOMs is isolated into, the right chamber room of airbag is isolated into the right air chamber of several end UNICOMs by drawstring.
Described chamber isolating construction is in air bag inflator, positioned at the boss of column cover lid.
Described left chamber and right chamber room is distributed in the both sides of column cover lid.
Described chamber isolating construction is to be provided with gap structure, preceding master in the middle of notch part, the top of preceding main leaf and rear main leaf
Piece and rear main leaf are stitched into the airbag of Y-shaped along edge, and airbag vertically directed upper portion, the middle part of horizontal direction are provided with breach
Portion.
In air bag inflator, described notch part is embedded in the boss of column cover lid.
Described chamber isolating construction is suturing part, after preceding main leaf and rear main leaf are along edge slit into airbag, on airbag
One of blockade line of portion centre position sewing, forms closed suturing part between blockade line and edge suture.
In air bag inflator, described suturing part is fitted the boss of column cover lid.
Described chamber isolating construction is closure suturing part, after preceding main leaf and rear main leaf are along edge slit into airbag, in gas
If bag upper middle position sewing arterial highway closure blockade line, closure blockade line forms closure suturing part on airbag, two adjacent
Closure suturing part between and closure suturing part and top edge suture between be provided with conducting portion, left chamber of conducting portion UNICOM and
Right chamber room.
In air bag inflator, the boss of described closure suturing part and conducting portion laminating column cover lid.
Described chamber isolating construction is reduction suturing part, and preceding main leaf and rear main leaf suture to be formed after airbag along edge,
The sewing of airbag upper middle position weakens blockade line together, and closed weakened seams are formed between reduction blockade line and edge suture
Conjunction portion.
In air bag inflator, the described boss for weakening suturing part laminating column cover lid starts to fill in airbag
During gas, reduction suturing part is in air-tight state, after airbag integrally deploys, and reduction blockade line bursts apart, and gas is filled with weakened seams
Conjunction portion.
Compared with the existing technology, airbag bottom has and prior art airbag phase the present invention close to the position of gas generator
Airbag top is divided into left chamber that is separation or semi-detached or being temporarily separated and right chamber by same structure, chamber isolating construction
Room, the airbag thickness made against column cover lid boss reduces or reduced in airbag expansion early stage thickness, reduces airbag
By the pushing and interference of column cover lid boss, so as to reduce impulsive force and extruding of the airbag to driver's lower limb.Its
Secondary, the airbag volume that designs of the present invention is smaller or smaller in airbag expansion early stage volume, the airbag gassiness time faster, from
And precalculated position can be deployed into earlier, provide protection against earlier.Again, air bag inflator volume of the present invention can be smaller,
Generator output can be reduced, the weight and cost of knee airbag is reduced.
Brief description of the drawings
Fig. 1 is that prior art knee air bag deploys effect diagram in the car.
Fig. 2 is the diagrammatic cross-section that prior art knee air bag deploys effect in the car.
Fig. 3 is the knee air bag airbag of the embodiment of the present invention 1 tiling schematic diagram.
Fig. 4 is that the knee air bag of the embodiment of the present invention 1 deploys effect diagram in the car.
Fig. 5 is the diagrammatic cross-section that the knee air bag of the embodiment of the present invention 1 deploys effect in the car.
Fig. 6 is the knee air bag airbag of the embodiment of the present invention 2 tiling schematic diagram.
Fig. 7 is the knee air bag airbag of the embodiment of the present invention 3 tiling schematic diagram.
Fig. 8 is the knee air bag airbag of the embodiment of the present invention 4 tiling schematic diagram.
Embodiment
The present invention is described further in conjunction with accompanying drawing.
The present invention devises a kind of knee airbag device, including preceding main leaf, rear main leaf and drawstring, and preceding main leaf 11 is with after
Main leaf 12 is stitched into airbag 1 along edge, and the drawstring 13 for having some strips is horizontally disposed between preceding main leaf 11 and rear main leaf 12, is drawn
Suture the inner surface for being fixed on preceding main leaf 11 and rear main leaf 12 respectively with the two of 13 long sides, drawstring 13 is by the bottom of airbag 1
The air chamber 14 of several two ends UNICOMs is isolated into, the top of airbag 1 is provided with chamber isolating construction, the both sides point of chamber isolating construction
Not She You left chamber 7 and right chamber room 8, bottom and the UNICOM of air chamber 14 of left chamber 7 and right chamber room 8, drawstring 13 is by the left chamber of airbag 1
Room 7 is isolated into the left air chamber of several end UNICOMs, and the right chamber room 8 of airbag 1 is isolated into several end UNICOMs by drawstring 13
Right air chamber.
When airbag 1 is inflated, chamber isolating construction is located at the boss of column cover lid 5, left chamber 7 and right chamber room
8 are distributed in the both sides of column cover lid 5.
Embodiment 1
Referring to Fig. 3, Fig. 4 and Fig. 5, the safety air bag 1 in the present embodiment is by preceding main leaf 11, rear main leaf 12, drawstring 13
Deng part composition.Preceding main leaf 11 and rear main leaf 12 surround the main body chamber to form airbag 1.Drawstring 13 is in strip, 13 liang of drawstring
Bar long side is connected with the inner surface suture of preceding main leaf 11 and rear main leaf 12 respectively, this embodiment is characterized in that chamber separation knot
Structure is that portion of material formation gap structure, preceding main leaf have all been dispelled in the middle of notch part 15, the top of preceding main leaf 11 and rear main leaf 12
11 form the main body chamber of airbag 1 of similar Y-shaped with the periphery suture of rear main leaf 12, and are split main body chamber by drawstring 13
The air chamber 14 stretched in the horizontal direction into several, vertically stacked.Airbag 1 vertically directed upper portion, horizontal direction
Middle part is provided with notch part 15.
The root of airbag 1 is connected by gas generator 2 with shell 3, is assembled into airbag module, and pass through housing 3
It is assemblied in instrument board 4.When the airbag inflates, the inside of airbag 1 is stretched, vertically stacked in the horizontal direction
Air chamber 14 is filled, and left chamber 7 and right chamber room 8 are also filled, and at notch part 15 formed a unaerated breach.Breach
Boss of the portion 15 just to column cover lid 5.Because being provided with notch part 15, airbag 1 will not be with steering tube in inflation
Post cover lid 5 forms mutual pushing, the cambered surface of instrument board 4 so that airbag 1 can preferably fit, as shown in Figure 4 and Figure 5.Compared to
The airbag of traditional design as depicted in figs. 1 and 2, interferes this embodiment avoids airbag 1 and the formation of driver's lower limb 6, reduces
To the impulsive force of driver's lower limb 6 in airbag 1 gas replenishment process.
Embodiment 2
It is also to be made up of parts such as preceding main leaf 11, rear main leaf 12, drawstrings 13 in airbag main body in the present embodiment.This implementation
The difference of example and embodiment 1 is that chamber isolating construction is suturing part 17.Referring to Fig. 6, preceding main leaf 11 and the top of rear main leaf 12 with
Prior art airbag is the same, does not dispel material, but after the main body sewing of airbag 1 is completed, in the top middle part of airbag 1
One of blockade line 16 is sutured, suturing part 17 that is closed and can not inflating is formed between blockade line 16 and edge suture.
When gas generator 2 is inflated into airbag 1, the inside of airbag 1 is stretched, vertically stacked in the horizontal direction
Air chamber 14 be filled, left chamber 7 and right chamber room 8 are also filled, but suturing part 17 is non-aerating so that airbag 1 effectively fill
Gas position forms approximate Y-shaped, and boss of the suturing part 17 just to column cover lid 5.Because suturing part 17 is non-aerating,
Its thickness only has the original thickness of airbag cloth, when internal gassiness airbag 1 and driver's lower limb 6 form mutual extruding
When, can easily the fit boss of column cover lid 5 of suturing part 17 deforms, so that airbag 1 is pasted well
Close the cambered surface of instrument board 4, the interaction force between reduction airbag 1 and driver's lower limb 6.Simultaneously as the left side on the top of airbag 1
Chamber 7 and right chamber room 8 are connected by suturing part 17, so as to during the expansion of airbag 1, better ensure that left chamber 7 and right chamber
The action stability of room 8.
Embodiment 3
Airbag main body in the present embodiment is also to be made up of parts such as preceding main leaf 11, rear main leaf 12, drawstrings 13, and main before it
Material is not dispelled as the airbag of embodiment 2 in the top of piece 11 and rear main leaf 12.The present embodiment and the difference of embodiment 2
It is, chamber isolating construction is between several closure suturing parts 19, two adjacent closure suturing parts 19 and closure suturing part
Conducting portion 20 is respectively equipped between 19 and top edge suture.Referring to Fig. 7, the top middle part of airbag 1 sewing closure closing
Line 18, the path of closure blockade line 18 is the shape of several closures and does not extend to the top edge of airbag 1.Close blockade line 18
Formed on airbag 1 between closure suturing part 19, closure suturing part 19 and between closure suturing part 19 and top edge suture
Form conducting portion 20.The left chamber of UNICOM 7 of conducting portion 20 and right chamber room 8.
When gas generator 2 is inflated into airbag 1, the other positions of the inside of airbag 1 in addition to suturing part 19 is closed
All it is filled, approximate Y-shaped in effective inflation position main body of airbag 1, but has between closure suturing part 19 with its top
Some narrow conducting portions 20, it is during the expansion of airbag 1, to better ensure that left chamber 7 and right chamber room 8 that it, which is acted on,
The stability of action.Meanwhile, because conducting portion 20 is narrow, when internal gassiness airbag 1 and the formation phase of driver's lower limb 6
Mutually during extruding, can easily the fit boss of column cover lid 5 of closure suturing part 19 and conducting portion 20 deforms,
The cambered surface of instrument board 4 so that airbag 1 is fitted well, the interaction force between reduction airbag 1 and driver's lower limb 6.
Embodiment 4
It is also to be made up of parts such as preceding main leaf 11, rear main leaf 12, drawstrings 13 in airbag main body in the present embodiment.This implementation
The difference of example and embodiment 2 is that chamber isolating construction is reduction suturing part 22.Referring to Fig. 8, on preceding main leaf 11 and rear main leaf 12
Material is not dispelled as prior art airbag by portion, but completes after the main body sewing of airbag 1, in the top pars intermedia of airbag 1
Position suture weakens blockade line 21 together, and closed reduction suturing part 22 is formed between reduction blockade line 21 and edge suture.
When gas generator 2 is inflated into airbag 1, the inside of airbag 1 is stretched, vertically stacked in the horizontal direction
Air chamber 14 be first filled.Now gas continues to be filled with to left chamber 7 and right chamber room 8, and weakens suturing part 22 or sealed shape
State, it is impossible to be inflated.Because reduction suturing part 22 can not be inflated, its thickness only has the thickness of airbag cloth, weakens suturing part
22 boss that can easily fit column cover lid 5 deform, the instrument board 4 so that airbag 1 is fitted well
Cambered surface, reduction airbag 1 and driver's lower limb 6 between interaction force.Design attitude is deployed into the entirety of airbag 1, and it is left
After chamber 7 and right chamber room 8 are also filled, reduction blockade line 21 is burst apart, and gas is filled with reduction suturing part 22.Now, airbag has been
Expansion is completed, and the gas replenishment process of reduction suturing part 22 does not interfere with the form of airbag, and also driver's lower limb 6 will not be produced additionally
Impulsive force.
Claims (8)
1. a kind of knee airbag device, including preceding main leaf, rear main leaf and drawstring, preceding main leaf（11）With rear main leaf（12）Along side
Edge is stitched into airbag（1）, preceding main leaf（11）With rear main leaf（12）Between be horizontally disposed with and have the drawstrings of some strips（13）, drawstring
（13）Two long sides suture be fixed on preceding main leaf respectively（11）With rear main leaf（12）Inner surface, it is characterised in that：Drawstring
（13）By airbag（1）Lower isolation into several two ends UNICOMs air chamber（14）, airbag（1）Top provided with chamber separate knot
Structure, the both sides of chamber isolating construction are respectively equipped with left chamber（7）With right chamber room（8）, left chamber（7）With right chamber room（8）Bottom
With air chamber（14）UNICOM, drawstring（13）By airbag（1）Left chamber（7）It is isolated into the left air chamber of several end UNICOMs, drawstring
（13）By airbag（1）Right chamber room（8）The right air chamber of several end UNICOMs is isolated into, described chamber isolating construction is to close
Close suturing part（19）, preceding main leaf（11）With rear main leaf（12）Along edge slit into airbag（1）Afterwards, in airbag（1）Top interposition
If putting sewing arterial highway closure blockade line（18）, close blockade line（18）In airbag（1）It is upper to form closure suturing part（19）, two phases
Adjacent closure suturing part（19）Between and closure suturing part（19）Be respectively equipped between the suture of top edge some it is narrow
Narrow conducting portion（20）, some narrow conducting portions（20）Left chamber of UNICOM（7）With right chamber room（8）, in airbag（1）Inflation
When, close suturing part（19）With some narrow conducting portions（20）Laminating column cover lid（5）Boss.
2. a kind of knee airbag device according to claim 1, it is characterised in that：Described chamber isolating construction exists
Airbag（1）During inflation, positioned at column cover lid（5）Boss, described left chamber（7）With right chamber room（8）It is distributed in
Column cover lid（5）Both sides.
3. a kind of knee airbag device according to claim 1 or 2, it is characterised in that：Described chamber separation knot
Structure is notch part（15）, preceding main leaf（11）With rear main leaf（12）Top in the middle of be provided with gap structure, preceding main leaf（11）With rear master
Piece（12）The airbag of Y-shaped is stitched into along edge（1）, airbag（1）Vertically directed upper portion, the middle part of horizontal direction are provided with breach
Portion（15）.
4. a kind of knee airbag device according to claim 3, it is characterised in that：It is described in air bag inflator
Notch part（15）Embedded column cover lid（5）Boss.
5. a kind of knee airbag device according to claim 1 or 2, it is characterised in that：Described chamber separation knot
Structure is suturing part（17）, preceding main leaf（11）With rear main leaf（12）Along edge slit into airbag（1）Afterwards, in airbag（1）In the middle of top
One of blockade line of position sewing（16）, blockade line（16）Closed suturing part is formed between edge suture（17）.
6. a kind of knee airbag device according to claim 5, it is characterised in that：In airbag（1）It is described during inflation
Suturing part（17）Laminating column cover lid（5）Boss.
7. a kind of knee airbag device according to claim 1 or 2, it is characterised in that：Described chamber separation knot
Structure is reduction suturing part（22）, preceding main leaf（11）With rear main leaf（12）Along edge slit into airbag（1）Afterwards, in airbag（1）Top
Centre position sewing weakens blockade line together（21）, weaken blockade line（21）Closed weakened seams are formed between edge suture
Conjunction portion（22）.
8. a kind of knee airbag device according to claim 7, it is characterised in that：In airbag（1）It is described during inflation
Reduction suturing part（22）Laminating column cover lid（5）Boss, in airbag（1）When starting inflation, suturing part is weakened
（22）In air-tight state, until airbag（1）After overall expansion, blockade line is weakened（21）Burst apart, gas is filled with reduction suturing part
（22）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510119090.0A CN104742849B (en) | 2015-03-18 | 2015-03-18 | A kind of knee airbag device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510119090.0A CN104742849B (en) | 2015-03-18 | 2015-03-18 | A kind of knee airbag device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104742849A CN104742849A (en) | 2015-07-01 |
| CN104742849B true CN104742849B (en) | 2017-08-25 |
Family
ID=53583302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510119090.0A Active CN104742849B (en) | 2015-03-18 | 2015-03-18 | A kind of knee airbag device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104742849B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020249390A1 (en) * | 2019-06-11 | 2020-12-17 | Audi Ag | Leg protection device for an occupant protection system of a vehicle |
| WO2020259910A1 (en) * | 2019-06-26 | 2020-12-30 | Autoliv Development Ab | Knee airbag, knee airbag module and steering assembly |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9731674B2 (en) * | 2015-09-11 | 2017-08-15 | Ford Global Technologies, Llc | Airbag assembly including depressed region below steering column |
| US10974684B2 (en) | 2019-03-01 | 2021-04-13 | Autoliv Asp, Inc. | Multi-chambered driver-side airbag assemblies |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3991720B2 (en) * | 2001-11-29 | 2007-10-17 | タカタ株式会社 | Crew protection device |
| JP4345645B2 (en) * | 2004-11-09 | 2009-10-14 | 豊田合成株式会社 | Air bag device for knee protection |
| CN100532162C (en) * | 2005-02-22 | 2009-08-26 | 丰田合成株式会社 | Air bag device for knee protection |
| DE102006008756A1 (en) * | 2006-02-24 | 2007-09-06 | Ford Global Technologies, LLC, Dearborn | knee airbag |
| JP4530018B2 (en) * | 2007-09-27 | 2010-08-25 | 豊田合成株式会社 | Knee protection airbag |
| CN101279600B (en) * | 2008-05-24 | 2010-07-14 | 锦州锦恒汽车安全系统有限公司 | Air bag device for protecting knee and crus |
| CN204641651U (en) * | 2015-03-18 | 2015-09-16 | 延锋百利得（上海）汽车安全系统有限公司 | A kind of knee airbag device of improvement |
-
2015
- 2015-03-18 CN CN201510119090.0A patent/CN104742849B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020249390A1 (en) * | 2019-06-11 | 2020-12-17 | Audi Ag | Leg protection device for an occupant protection system of a vehicle |
| US11845394B2 (en) | 2019-06-11 | 2023-12-19 | Audi Ag | Leg protection device for an occupant protection system of a vehicle |
| WO2020259910A1 (en) * | 2019-06-26 | 2020-12-30 | Autoliv Development Ab | Knee airbag, knee airbag module and steering assembly |
| US11814001B2 (en) | 2019-06-26 | 2023-11-14 | Autoliv Development Ab | Knee airbag, knee airbag module and steering assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104742849A (en) | 2015-07-01 |
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Effective date of registration: 20191225 Address after: 201315 4th floor, building 11, No. 957, Kangqiao Road, Pudong New Area, Shanghai Co-patentee after: Shanghai Lingang Junsheng automobile safety system Co., Ltd Patentee after: Yanfeng Automobile Intelligent Safety System Co., Ltd. Address before: 201315 No. 426 Pu Pu Road, Cambridge Industrial Zone, Shanghai, Pudong New Area Patentee before: Yanfeng Bailide (Shanghai) Automobile Safety System Co., Ltd. |