CN103879369A - Airbag device - Google Patents
Airbag device Download PDFInfo
- Publication number
- CN103879369A CN103879369A CN201310714592.9A CN201310714592A CN103879369A CN 103879369 A CN103879369 A CN 103879369A CN 201310714592 A CN201310714592 A CN 201310714592A CN 103879369 A CN103879369 A CN 103879369A
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- Prior art keywords
- mentioned
- air bag
- bulge
- base cloth
- airbag apparatus
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- 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
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- 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
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- 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
- B60R2021/161—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by additional means for controlling deployment trajectory
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
The device (1) has an attachment portion formed in a base end portion (22) of a protective inflating portion (20) on a side of a vehicle element i.e. dashboard, which is attached with a gas generator (2). Multiple supporting inflators (30, 31) are formed in the base end portion and projected from the protective inflating portion to a side of the vehicle element to support the protective inflating portion. The base end portion is connected to the vehicle element. The supporting inflators are located on opposite sides of the attachment portion, and surround a mounting portion (11).
Description
Technical field
The present invention relates to a kind of airbag apparatus that utilizes air bag protection occupant in vehicle.
Background technology
In order to protect occupant in situation at vehicle during in emergency etc., in vehicle component, be provided with various airbag apparatus.In airbag apparatus, normally utilize the gas of supplying with from charging blower that air bag is expanded and launch, utilize air bag to catch occupant.Now, for example, in the airbag apparatus of using at co-pilot seat, air bag launches from instrument carrier panel, expands in the mode in the space between landfill instrument carrier panel, Windshield and occupant.In addition, the air bag of expansion is pressed on Windshield, is supported by Windshield.Thus, make action, the stable performance of air bag.
At this, because the angle of Windshield is all different in every kind of vehicle, therefore need to match with the angle of Windshield and design air bag for every kind of vehicle.Therefore, cannot make identical air bag share in various, every kind of vehicle is all used different air bags.With respect to this, be known to a kind ofly between Windshield and the air bag of expansion, produce the airbag apparatus (with reference to patent documentation 1) in gap by controlling the gas flow in air bag in the past.
In the airbag apparatus described in patent documentation 1, air bag launches broad scope along Windshield and instrument carrier panel, thus protection occupant.In addition, the gas that air bag is supplied with by self-rectifying parts is pressed on instrument carrier panel, thereby does not expand contiguously with Windshield.
But, in the process of utilizing gas to press, likely cannot guarantee to be enough to support the power of air bag, be difficult to make the air bag expanding to be stabilized in protection occupant's state.Its result, expands and launches midway at air bag, and air bag is likely beated largely on instrument carrier panel.In addition, under the state launching in air bag expansion, along with vehicle emergency stops and to air bag effect inertia, likely causes air bag motion rotatably centered by the position that is installed on instrument carrier panel.In the time that occupant enters into air bag, air bag also likely from installation site the front to vehicle move largely.
In addition, along with rectification part is installed, the parts number of packages of airbag apparatus increases, and therefore the cost of airbag apparatus (manufacturing cost, member cost) raises, and the weight of airbag apparatus also can increase.In addition, because rectification part is accepted the gas of high pressure at the periphery of charging blower, the intensity of therefore rectification part being had relatively high expectations, the tendency that exists its cost to raise.Thereby from the viewpoint of cutting down cost, weight, the parts number of packages of seeking not increase airbag apparatus just can make the air bag stable.Meanwhile, in order to realize the sharing of air bag in various, need to prevent and the contacting of Windshield etc., and maintain the state of the air bag of expansion.
Patent documentation 1: TOHKEMY 2011-131666 communique
Summary of the invention
the problem that invention will solve
The present invention completes in view of above-mentioned problem in the past, and its object is, does not increase the parts number of packages of airbag apparatus, just can make the air bag expanding be stabilized in state outstanding from vehicle component and protection occupant.In addition, only utilize the part by vehicle component side of air bag that air bag is maintained to the state outstanding from vehicle component.
for the scheme of dealing with problems
Airbag apparatus of the present invention comprises and utilizes air bag that gas expands and the charging blower for supply gas in air bag, and this airbag apparatus is arranged on vehicle component, and wherein, air bag comprises: protection bulge, and it is from the outstanding and protection occupant of vehicle component; Installation portion, it is formed on the base end part by vehicle component side of protection bulge, and charging blower can be installed; And multiple supporting bulges; its self-shield bulge is side-prominent to vehicle component; by the protection bulge of expansion, to be only the state support that base end part is contacted with vehicle component, multiple supporting bulges are formed on the both sides of installation portion or form in the mode of surrounding installation portion.
the effect of invention
Adopt the present invention, do not increase the parts number of packages of airbag apparatus, just can make the air bag expanding be stabilized in state outstanding from vehicle component and protection occupant.In addition, only utilize the part by vehicle component side of air bag just air bag can be maintained to the state outstanding from vehicle component.
Brief description of the drawings
Fig. 1 is the lateral plan of the airbag apparatus of present embodiment.
Fig. 2 is the expansion drawing that forms previous air bag.
Fig. 3 is the block diagram that forms air bag midway.
Fig. 4 A, Fig. 4 B are the block diagrams that forms air bag afterwards.
Fig. 5 A, Fig. 5 B are the figure that represents the folding process of air bag.
Fig. 6 A, Fig. 6 B are the figure that represents the folding process of air bag.
Fig. 7 A～Fig. 7 C is the figure of the action of air bag while representing expansion expansion.
Fig. 8 A～Fig. 8 C is the figure of the action of air bag while representing that occupant enters.
Fig. 9 A～Fig. 9 C is the figure that has represented to change the air bag of folded back position.
Figure 10 A～Figure 10 C is the figure that represents the air bag with two supporting bulges.
Figure 11 A～Figure 11 C is the figure that represents the air bag with two supporting bulges.
Figure 12 A～Figure 12 C is the figure that represents the air bag with 3 supporting bulges.
Figure 13 A～Figure 13 C is the figure that represents the air bag with 4 supporting bulges.
description of reference numerals
1, airbag apparatus; 2, charging blower; 3, gap; 10, air bag; 11, installation portion; 12, deflation hole; 13, the 1st base cloth; 14, the 2nd base cloth; 15, the 3rd base cloth; 16, reflex part; 17, convolution portion; 18, bellows-folded portion; 20, protection is expanded all; 21, top ends; 22, base end part; 30～38, supporting bulge; 80, vehicle; 81, Windshield; 82, instrument carrier panel; 82A, upside receiving portion; 82B, downside receiving portion; 83, resettlement section; 90, occupant; 91, head.
Detailed description of the invention
With reference to the accompanying drawings of an embodiment of airbag apparatus of the present invention.
The airbag apparatus of present embodiment is the occupant protection system that utilizes air bag protection automotive occupant, and it is arranged on the vehicle component of various vehicles.Vehicle component is the member that forms vehicle, and airbag apparatus is arranged on the vehicle component of regulation in vehicle.Below, the explanation airbag apparatus as an example of co-pilot seat airbag apparatus example.
Fig. 1 is the lateral plan of the airbag apparatus 1 of present embodiment, is schematically illustrated in the air bag 10 of vehicle 80 interior expansions.In addition, in Fig. 1, represent to observe from the Width of vehicle 80 part and the occupant 90 of vehicle 80, represent vehicle 80 with cutaway view.In addition, in the present embodiment, forward and backward, upper and lowerly refer to the forward and backward, upper and lower of vehicle 80.
As diagram, vehicle 80 comprises Windshield 81, is positioned at the instrument carrier panel 82 of below and the resettlement section 83 of airbag apparatus 1 of Windshield 81.
Airbag apparatus 1 is included in and between Windshield 81 and occupant 90, utilizes air bag (cushion rubber) 10 that gas expands and the charging blower 2 for generation of gas.Air bag 10 has the installation portion 11 of charging blower 2, and air bag 10 is together housed in resettlement section 83 with the state and the charging blower 2 that fold.Charging blower 2 is arranged on the installation portion 11 of air bag 10, and charging blower 2 and installation portion 11 are fixed on instrument carrier panel 82.At vehicle, during in emergency etc. in situation, the work indicator signal receiving according to the indicating device from vehicle 80 (not shown) is worked charging blower 2.Charging blower 2 is at the interior generation gas of air bag 10, thereby supplies gas in air bag 10.
The air bag 10 of present embodiment, under the state expanding, is formed as from instrument carrier panel 82 towards the outstanding shape of occupant 90 in the mode not contacting with vehicle 80 except contacting with instrument carrier panel 82.In addition, air bag 10 is deployed into the position of leaving from the member (Windshield 81 etc.) except instrument carrier panel 82, is only supported by instrument carrier panel 82.The state of air bag 10 only to contact with instrument carrier panel 82, from instrument carrier panel 82 towards occupant 90 expansion of automatically expanding.
This air bag 10 has for catching 1 of occupant 90 protection bulge 20 and the multiple supporting bulges for supporting and protecting bulge 20, supports bulge 30,31.Protection bulge 20 is main bulges of air bag 10, and its projected direction P from instrument carrier panel 82 along regulation in the time that the interior expansion of vehicle 80 launches is outstanding.In addition, protection bulge 20 is outstanding towards occupant 90 with the state only contacting with instrument carrier panel 82, expands in occupant 90 front.The top ends 21 by occupant's 90 sides of protection bulge 20 is configured in occupant 90 front, relative with occupant 90.Occupant 90 enters into the protection bulge 20 of expansion, and protected bulge 20 is protected.
The installation portion 11 of charging blower 2 is formed on the base end part 22(of protection bulge 20 by the end of instrument carrier panel 82 sides), be positioned at the central portion of base end part 22.Thereby charging blower 2 is arranged on the base end part 22 of protection bulge 20, the central portion of itself and base end part 22 is together fixed on instrument carrier panel 82.In the time that air bag 10 expands, the base end part 22 of protection bulge 20 is held in instrument carrier panel 82 in the position of charging blower 2.Under this state, the protection bulge 20 of expansion, by least two (being two at this) supporting bulge, supports bulge 30,31 with from the outstanding state support of instrument carrier panel 82.
Supporting bulge 30,31 is formed in the supporting leg of the base end part 22 of protection bulge 20, and it is formed on the edge of base end part 22.In the time that air bag 10 expands, multiple supporting bulges, support bulge 30,31 self-shield bulges 20 side-prominent to instrument carrier panel 82, launch along instrument carrier panel 82.The supporting bulge 30,31 expanding is positioned at the position by instrument carrier panel 82 sides than protection bulge 20, is contacted with the instrument carrier panel relative with base end part 22 82.
In addition, in the present embodiment, after air bag 10 expands, supporting bulge 30,31 is contacted with instrument carrier panel 82.With respect to this, can be also before occupant 90 enters into the air bag 10 of expansion, supporting bulge 30,31 leaves from instrument carrier panel 82.In this case, after occupant 90 enters into air bag 10, supporting bulge 30,31 is contacted with instrument carrier panel 82.
Utilize multiple supporting bulges, support bulge 30,31 supportings towards the outstanding protection bulge 20 of occupant 90.Now, be contacted with under the state (state that the part except base end part 22 of protection bulge 20 does not contact with vehicle 80) of instrument carrier panel 82 the protection bulge 20 that supporting is expanded at the base end part 22 that is only protection bulge 20.
The 2nd supporting bulge 31 expanding is along ratio installation portion 11 partial configuration of side on the lower of instrument carrier panel 82, outstanding downward from protection bulge 20.In addition, the 2nd supporting bulge 31(is at least top ends 31A) be contacted with the surface by occupant's 90 sides of instrument carrier panel 82, at the lower support protection bulge 20 of instrument carrier panel 82.
Like this, multiple supporting bulges, support the position that bulge 30,31 separates in the direction orthogonal with the Width of vehicle 80 and expand, and are contacted with instrument carrier panel 82 at the periphery of the setting position of airbag apparatus 1.And the supporting bulge 30,31 of expansion is contacted with the upside that is positioned at installation portion 11 of instrument carrier panel 82 and the part of downside, thus supporting and protecting bulge 20.Now, supporting bulge 30,31 expands in the mode of clamping instrument carrier panel 82 in two edges of base end part 22.Protection bulge 20 is stably supported by the supporting bulge 31 of the supporting bulge 30 of upside and downside.
The distance of the top ends 30A of the 1st supporting bulge 30 from installation portion 11 to upside is different from the distance of the top ends 31A of the 2nd supporting bulge 31 from installation portion 11 to downside.These two distances are the shortest distances along the surface measurements of air bag 10, so that the mode that the stability of protection bulge 20 uprises is set.Supporting bulge 30,31 is projected into the position corresponding with each distance, is contacted with the specified part of instrument carrier panel 82.In addition, also can be corresponding to the expansion condition of air bag 10 (shape of air bag 10, the shape of instrument carrier panel 82 etc.), and these two distances are set as to identical distance.
The forming process of air bag 10 then, is described.
Fig. 2 is the expansion drawing that forms previous air bag 10, represents 3 base cloths (cloth cover, panel) 13～15 of air bag 10.Fig. 3 is the block diagram that forms air bag 10 midway.
As diagram, air bag 10 is by the 1st base cloth 13～3rd base cloth 15(base cloth member that is formed as respectively regulation shape) form, it utilizes the 1st base cloth 13～3rd base cloth 15 after engaging to be formed as bag.The 1st base cloth 13 is side base cloths of air bag 10, becomes the side (side face) of the air bag 10 that expand into tubular.In addition, the 1st base cloth 13 is made up of 1 base cloth (scrim material), and it has edge 13A, the 13B of the left and right that is formed as linearity and is formed as wavy upper and lower edge 13C, 13D.In addition, the shape of upper and lower edge 13C, 13D changes with the shape of air bag 10 with matching, is formed as various shapes.
In the time forming air bag 10, first, by overlapping to edge 13A, the 13B of the left and right of the 1st base cloth 13, by making, a pair of edge 13A, 13B are engaged airtightly.Thus, in the 1st base cloth 13, form the junction surface 113E of edge 13A, 13B, the 1st base cloth 13 is formed as to tubular.In the time that air bag 10 expands, the 1st base cloth 13 is outstanding towards occupant 90 from instrument carrier panel 82, expands into tubular.Like this, the 1st base cloth 13 is the tubular base cloths that are formed as tubular, and it has opening at the end 13F by instrument carrier panel 82 sides and by the other end 13G of occupant's 90 sides.
The 2nd base cloth 14 engages with the end 13F of the ring-type of the 1st base cloth 13, and the 3rd base cloth 15 engages with the end 13G of the ring-type of the 1st base cloth 13, becomes the both ends of the surface (cardinal extremity face, top end face) of air bag 10.Now, the edge of the 2nd base cloth 14 and the 3rd base cloth 15 is by making the edge that is engaged in airtightly end 13F, 13G.The 2nd base cloth 14 be air bag 10 by instrument carrier panel side group cloth (by vehicle component side group cloth), it is positioned at instrument carrier panel 82 sides in the time that air bag 10 expands.In addition, the 2nd base cloth 14 has the installation portion 11 of charging blower 2.Installation portion 11 is made up of the mounting hole with round-shaped hole, and it is formed on the central portion of the 2nd base cloth 14.Charging blower 2 is inserted in the mounting hole of installation portion 11, is arranged on installation portion 11 and the 2nd base cloth 14.
The 2nd base cloth 14 is formed as having the band shape of gently bending edge, and the 3rd base cloth 15 is formed as having the shape (round-shaped, elliptical shape etc.) of bending edge.After the 1st base cloth 13 is formed as to tubular, the 2nd base cloth 14 is engaged in to an end 13F of the 1st base cloth 13, thereby stops up the opening of an end 13F.Be engaged in the other end 13G of the 1st base cloth 13 with respect to the 2nd base cloth 14, the 3 base cloths 15, thereby stop up the opening of the other end 13G.The 3rd base cloth 15 be air bag 10 by occupant side base cloth, it is positioned at by the position of occupant's 90 sides and relative with occupant 90 in the time that air bag 10 expands.
Both ends 13F, the 13G of the 1st base cloth 13 is with the 2nd base cloth 14 as the 1st end face (bottom surface) base cloth and engage as the 3rd base cloth 15 of the 2nd end face (top end face) base cloth, is formed as the shape corresponding with the shape of each base cloth 14,15.Thus, air bag 10 is formed as regulation shape.
Fig. 4 A, Fig. 4 B are the block diagrams that forms air bag 10 afterwards, and Fig. 4 A and Fig. 3 represent air bag 10 accordingly.Fig. 4 B is the figure that represents the arrow directions X observation air bag 10 from Fig. 4 A, represents the air bag 10 that occupant 90 sees.
At least a portion of protection bulge 20 is formed as along with going and the cross sectional shape expanded towards top ends 21 from base end part 22 under the state expanding.Specifically, in the direction of the length direction along the 2nd base cloth 14, the width of air bag 10 is from base end part 22(width S 1) towards top ends 21(width S 2) (width S 1 > width S 2) gradually narrows., the cross section of the length direction along the 2nd base cloth 14 of air bag 10 is tapered towards top ends 21 from base end part 22.
With respect to this, with the orthogonal direction of the length direction of the 2nd base cloth 14 on, the width of air bag 10 is from base end part 22(width T1) towards top ends 21(width T2) (width T1 < width T2) gradually broadens., the orthogonal cross section of the length direction with the 2nd base cloth 14 of air bag 10 broadens towards top ends 21 gradually from base end part 22.Like this, air bag 10 comprise regulation cross section in interior part along with going towards top ends 21 and broadening, protection bulge 20 at least a portion with along with base end part 22 towards top ends 21 go and gradually expansion mode expand.
Under the state that air bag 10 is three-dimensionally expanded (state shown in Fig. 4 A), to be made as L1 to the shortest distance of the 3rd base cloth 15 from installation portion 11, by the both ends of top ends 31A(the 2nd base cloth 14 from supporting bulge 30 top ends 30A, supporting bulge 31) be made as L2, L3 to the shortest distance of the 3rd base cloth 15.In this case, set accordingly L1, L2, L3 with the expanded shape of air bag 10.In addition, by setting L1, L2, L3, the shape of the part of colliding with occupant 90 that can adjust air bag 10 in the time that air bag 10 expands.
For example, by making L1 be shorter than L2 and L3(L1 < L2, L3), supporting under the outstanding state of bulge 30,31, the 3rd base cloth 15 expands into the shape that approaches plane.Its result, the area of accepting occupant 90 of air bag 10 becomes large.In addition, by making L1 equate (L1=L2, L3) with L2 and L3, supporting under the outstanding state of bulge 30,31, the 3rd base cloth 15 expands into bending shape.Its result, the part by occupant's 90 sides of air bag 10 becomes circle.With respect to this, according to the expanded shape of the shape of instrument carrier panel 82, air bag 10, L1 can be longer than L2 and L3(L1 > L2, L3).
Forming after air bag 10, with resettlement section 83(with reference to Fig. 1) the size ground folded airbag 10 that matches, air bag 10 and charging blower 2 are together housed in resettlement section 83.In the present embodiment, air bag 10 is folded into, and at the 10 expansion initial stages of air bag, makes the gas of supplying with from charging blower 2 directly not meet the junction surface 13E of the 1st base cloth 13.In addition, air bag 10 is folded into, and junction surface 13E does not encounter the gas supply part of charging blower 2.Thus, in the folding air bag 10 of junction surface 13E before expanding, be configured in not the position of directly colliding with the gas of supplying with from charging blower 2.
Fig. 5 A, Fig. 5 B, Fig. 6 A, Fig. 6 B are the figure that represents the folding process of air bag 10.In each figure of Fig. 5 A, Fig. 5 B, Fig. 6 A, Fig. 6 B, figure (M) is the birds-eye view of air bag 10, and figure (Y) is the lateral plan that the Y-direction from figure (M) is observed air bag 10, and figure (Z) is the lateral plan that the Z direction from figure (M) is observed air bag 10.In addition, the V1 direction in figure (M) is the upper direction in vehicle 80, represents Windshield 81 sides.V2 direction in figure (M) is the lower direction in vehicle 80, represents occupant's 90 sides.W direction in figure (M) is the Width of the vehicle 80 in vehicle 80.
First, as diagram, the 3rd base cloth 15 is pressed into the 1st base cloth 13 interior (with reference to Fig. 5 A) of tubular, is folded in air bag 10.In addition, the 1st base cloth 13 is folding to V1 direction, and overlapped on the 2nd base cloth 14.Thus, form reflex part 16 in air bag 10, reflex part 16 turns back at the folded back position 16A of regulation.At this, folded back position 16A is set in the middle position in V1, V2 direction.Then, reflex part 16, towards V2 direction spooling, is folded to repeatedly (being 5 times at this) (with reference to Fig. 5 B).Utilize this convolution (Japanese: ロ ー Le folding り), reflex part 16 is folded into web-like, form the convolution portion 17 of Rack at the central portion of air bag 10.
Then, by the both sides in the W direction of air bag 10 to the both direction of W direction turn back repeatedly (being 3 times at this) (with reference to Fig. 6 A).Utilize this bellows-folded, air bag 10 is folded into corrugated, in air bag 10, form a pair of bellows-folded portion 18.Finally, air bag 10 is turned back to V1, V2 direction, by air bag 10 entirety with the mode bellows-folded overlapping with installation portion 11 (with reference to Fig. 6 B).Now, the part between the top in installation portion 11 and V1 direction turned back repeatedly (being 3 times at this) and carry out bellows-folded.In addition, the part between the top in installation portion 11 and V2 direction turned back repeatedly (being 3 times at this) and carry out bellows-folded.
Afterwards, package (Japanese: ラ ッ ピ Application グ material) (not shown) is arranged on air bag 10, utilizes package that air bag 10 is maintained to folding state.Folding air bag 10(is with reference to Fig. 1) be together arranged in resettlement section 83 with charging blower 2, airbag apparatus 1 is arranged on instrument carrier panel 82.In the time that air bag 10 expands expansion, under the effect of the gas producing at charging blower 2, air bag 10 starts to expand, and air bag 10 makes package fracture.Then, air bag 10 is untied collapsed shape expansion on one side on one side in order.
Fig. 7 A～Fig. 7 C represents to expand the figure of action of air bag 10 while expansion, and Fig. 8 A～Fig. 8 C is the figure of the action of air bag 10 while representing that occupant 90 enters.Each figure and Fig. 1 of Fig. 7 A～Fig. 7 C, Fig. 8 A～Fig. 8 C similarly represent air bag 10, vehicle 80, occupant 90.
Expand while launching at air bag 10, first, air bag 10(is with reference to Fig. 7 A) launch along instrument carrier panel 82 in the mode of the part that covers instrument carrier panel 82.In addition, multiple supporting bulges of air bag 10, support bulge 30,31 and expand, and a part for protection bulge 20 expand.Protection bulge 20 jumps out in vehicle 80 from instrument carrier panel 82, is expanded to tubular (with reference to Fig. 7 B) from instrument carrier panel 82 towards occupant 90.
After protection bulge 20 expands in the mode of giving prominence to, multiple supporting bulges, support bulge 30,31 outstanding to the opposition side of protection bulge 20, and are contacted with instrument carrier panel 82(with reference to Fig. 7 C).Protection bulge 20 with towards the outstanding state of occupant 90 by multiple supporting bulges, support bulge 30,31 supportings.Now, protection bulge 20 be only base end part 22 be contacted with instrument carrier panel 82 state by multiple supporting bulges, be supported bulge 30,31 supporting.In addition, air bag 10 is being only that to be contacted with vehicle 80(be instrument carrier panel 82 at this to the base end part 22 of supporting bulge 30,31 and protection bulge 20) state be supported, and in the expansion of occupant 90 front.
In the time that this air bag 10 expands, the 1st base cloth 13 of protection bulge 20 expands into tubular along Windshield 81, and is deployed into the position of leaving from Windshield 81.In addition, expand and launch in the space of air bag 10 between Windshield 81, instrument carrier panel 82 and occupant 90.The 1st supporting bulge 30 is deployed into than installation portion 11(resettlement section 83) by the position of Windshield 81 sides, the 2nd supporting bulge 31 is deployed into than installation portion 11(resettlement section 83) position of side on the lower.
Utilize the supporting of the supporting bulge 30,31 forming in the both sides of installation portion 11, make the having stable behavior of air bag 10, the air bag of expansion 10 is configured in to the assigned position in vehicle 80 reliably.In addition, expand and launch midway at air bag 10, can suppress air bag 10 and beat on instrument carrier panel 82.Even if make effect of inertia after air bag 10 at the emergent stopping along with vehicle 80, also can suppress the motion of air bag 10.Its result, air bag 10 is stably expanded to from instrument carrier panel 82 and gives prominence to and protection occupant's 90 state, is configured in the assigned position in occupant 90 fronts.Occupant 90 moves towards the air bag 10 expanding, and is contacted with the assigned position (with reference to Fig. 8 A) of air bag 10.
The air bag 10 expanding is made up of protection bulge 20 and supporting bulge 30,31, and occupant 90 is contacted with the top ends 21 of protection bulge 20.Head 91 from occupant 90(at this) under the effect of the power of bearing, air bag 10 is compressed and be crushed (with reference to Fig. 8 B) on occupant 90 approach axis.Thus, air bag 10 is out of shape on approach axis, and (being to comprise side and above-below direction in the orthogonal direction of interior and approach axis at this) distortion to side.In addition, the top ends 21 of air bag 10 matches with occupant 90 shape and is out of shape in the mode of depression, and the base end part 22 of air bag 10 is pressed on instrument carrier panel 82.Now, multiple supporting bulges, the periphery that supports bulge 30,31 setting positions at airbag apparatus 1 is pressed on instrument carrier panel 82, thus supporting and protecting bulge 20.
Along with occupant 90 enters into the air bag 10 of expansion, air bag 10 is out of shape (with reference to Fig. 8 C) in the mode being crushed towards instrument carrier panel 82.Air bag 10 absorbs occupant 90 energy in distortion, occupant 90 is stopped mobile.Occupant 90 is in the situation that not exclusively flattening air bag 10, and the protection bulge 20 that is utilized 30,31 supportings of supporting bulge is caught.In addition, occupant 90 is retrained by air bag 10, and can not be contacted with instrument carrier panel 82.
As described above, in the present embodiment, only utilize the part by instrument carrier panel 82 sides of air bag 10 just air bag 10 can be maintained to the state outstanding from instrument carrier panel 82.Therefore, do not increase the parts number of packages of airbag apparatus 1, just can make the air bag 10 expanding be stabilized in protection occupant's 90 state.Because parts number of packages does not increase, therefore, the cost that can suppress airbag apparatus 1 rises, and can prevent that the weight of airbag apparatus 1 from increasing.In addition,, owing to can utilizing multiple supporting bulges, support bulge 30,31 supporting and protecting bulge 20 securely; therefore; even after occupant 90 enters into protection bulge 20, also can make the having stable behavior of air bag 10, thereby can suppress the N/R action of air bag 10.
Because air bag 10 expands with the state that is only contacted with instrument carrier panel 82, therefore can make air bag 10 share in various.In addition, because not being contacted with Windshield 81 ground, air bag 10 expands, therefore, even if the angle difference of Windshield 81 also needn't change the shape of air bag 10.Therefore, can in various, use identical air bag 10.
Due to by the cross sectional shape of at least a portion of protection bulge 20 with along with going the mode of expanding to form from base end part 22 towards top ends 21, therefore can increase the part of accepting occupant 90 of protection bulge 20.Its result, can catch occupant 90 reliably.In addition,, owing to can reducing the part of base end part 22 sides of protecting bulge 20, therefore can reduce the capacity of air bag 10.With respect to this, also protection bulge 20 entirety can be formed to become large mode from top ends 21 towards base end part 22.In this case, because the area contacting with instrument carrier panel 82 of air bag 10 becomes large, therefore the stability of air bag 10 raises.
Due to multiple supporting bulges, support bulge 30,31 and be contacted with the upside that is positioned at installation portion 11 of instrument carrier panel 82 and the part of downside, therefore, can be easy to produce at air bag 10 the above-below direction upper support protection bulge 20 of motion.Its result, makes the action of air bag 10 more stable.In addition, for example, with multiple supporting bulges, support the situation that bulge 30,31 is contacted with the right side that is positioned at installation portion 11 of instrument carrier panel 82 and the part in left side and compare, the stability of air bag 10 raises.
Multiple supporting bulges with air bag 10, support bulge 30,31 corresponding (with reference to Fig. 1), instrument carrier panel 82 has upside receiving portion 82A and downside receiving portion 82B, upside receiving portion 82A is for accepting the 1st supporting bulge 30 than installation portion 11 top sides, and downside receiving portion 82B is for accepting than installation portion 11 the 2nd supporting bulge 31 of side on the lower.Upside receiving portion 82A is positioned at the upside of installation portion 11, is formed on the upper surface of instrument carrier panel 82.The 1st supporting bulge 30 is contacted with upside receiving portion 82A, thus supporting and protecting bulge 20.Downside receiving portion 82B is positioned at the downside of installation portion 11, is formed on the surface by occupant's 90 sides of instrument carrier panel 82.The 2nd supporting bulge 31 is contacted with downside receiving portion 82B, thus supporting and protecting bulge 20.
The rigidity of upside receiving portion 82A is higher than the rigidity of downside receiving portion 82B, and their values of stiffness (modulus of rigidity) becomes mutually different value.Form rib by the back side at instrument carrier panel 82, or change the thickness of instrument carrier panel 82, set respectively the rigidity (values of stiffness) of receiving portion 82A, 82B.By making the rigidity of upside receiving portion 82A higher than the rigidity of downside receiving portion 82B, the power that acts on supporting bulge 30,31 from receiving portion 82A, 82B is created a difference, the 1st supporting bulge 30 is accepted relatively strong power.Thus, in the time that air bag 10 expands expansion, air bag 10 is partial to below and is launched taking installation portion 11 as fulcrum.Its result, air bag 10 launches on one side to the direction displacement of leaving from Windshield 81 on one side, thereby expands in occupant 90 front.
Under the supporting role of the 1st supporting bulge 30 that is contacted with upside receiving portion 82A, the stability of protection bulge 20 raises, and air bag 10 maintains the state expanding after launching.In addition,, in the time that occupant 90 enters into the air bag 10 after expanding, air bag 10 is difficult for forwards moving, and can suppress occupant 90 movement forwards.Like this, there are differences by the rigidity that makes receiving portion 82A, 82B, can be in instrument carrier panel 82 sides the bearing state of the expansion mode to air bag 10, protection bulge 20 adjust.Therefore, needn't match and set airbag apparatus 1 with vehicle 80, can seek the sharing of airbag apparatus 1.
In the time that air bag 10 expands, the 1st base cloth 13 of tubular protrudes tubular from instrument carrier panel 82 towards occupant 90.Because the side (side face) of air bag 10 is made up of the 1st base cloth 13 of tubular, therefore air bag 10 is difficult for expanding to side, can suppress air bag 10 and be out of shape to side.In addition, can cause air bag 10 distortion to suppress to being entered by occupant 90, thereby make air bag 10 be difficult for flattening.Therefore, can improve the energy absorption efficiency of air bag 10, effectively occupant restraint 90.Can also reduce occupant 90 from being contacted with the amount of movement of air bag 10 to the occupant 90 who stops.Thus, even if reduce air bag 10, also can prevent contacting of occupant 90 and instrument carrier panel 82, therefore can reduce the capacity of air bag 10.
Owing to a pair of edge 13A, the 13B of 1 base cloth being engaged and the 1st base cloth 13 being formed as to tubular (with reference to Fig. 2, Fig. 3), therefore can easily form the 1st base cloth 13 of tubular.The junction surface 13E of the 1st base cloth 13 is configured in the optional position of air bag 10.But, by junction surface 13E is configured in to the position that is easy to damaged position deviation from air bag 10 in the folding air bag 10 before expanding, can suppresses junction surface 13E and in the time that air bag 10 expands the initial stage, occur damaged.
The damaged position that is easy to of air bag 10 is for example the position that is subject to the impact of high-temperature gas.Thereby preferably, junction surface 13E is configured in not the position of directly colliding with the gas of supplying with from charging blower 2 in folding air bag 10.By doing like this, before air bag 10 expands and at first in folding air bag 10 when supply gas (while utilizing the initial stage of charging blower 2 supply gas), junction surface 13E is configured in not the position of directly colliding with gas.Its result, can reduce the heat of gas to junction surface 13E impact, thereby suppresses the breakage of junction surface 13E.
In addition, in the present embodiment, be the 1st base cloth 13 that forms tubular by 1 base cloth is engaged, but also can be by multiple base cloths joints being formed to the 1st base cloth 13 of tubular.Also can utilize the base cloth of the tubular that there is no junction surface to form the 1st base cloth 13.Equally, the 2nd base cloth 14 both can utilize 1 base cloth to form, also can be by multiple base cloths are engaged and formed, and the 3rd base cloth 15 both can utilize 1 base cloth to form, also can be by multiple base cloths are engaged and formed.Forming the base cloth that the 1st base cloth 13～3rd base cloth 15 uses is the scrim material (being to cut base cloth at this) as the raw material of the 1st base cloth 13～3rd base cloth 15, is formed as respectively regulation shape.Also can in the 2nd base cloth the 14, the 3rd base cloth 15, form breakthrough part (hole, slit etc.) as required.In this case, utilizing the 2nd base cloth the 14, the 3rd base cloth 15 to stop up under the state of opening of the 1st base cloth 13 of tubular, the inside (air chamber) of air bag 10 is connected with outside by the breakthrough part of the 2nd base cloth 14, the 3rd base cloth 15.
Fig. 9 A～Fig. 9 C is the figure that has represented to change the air bag 10 after folded back position 16A, the action of air bag 10 while similarly representing to expand expansion with Fig. 7 A～Fig. 7 C.
As diagram, increase by the upper volume of air bag 10, the upper portion of air bag 10 expands largely.Its result, the air bag 10 expanding is pressed against downside, thereby makes to protect the projected direction P of bulge 20 to change to downside.
With respect to this, if by folded back position 16A(with reference to Fig. 5 A) move to V1 direction, at the downside (V2 side) of folded back position 16A, the volume (lower volume) of air bag 10 increases.In the time that air bag 10 expands, because the lower portion of air bag 10 expands largely, therefore, air bag 10 is pressed against upside, and the projected direction P of protection bulge 20 changes to upside.
The air bag 10 of other embodiment then, is described.
Figure 10 A～Figure 10 C, Figure 11 A～Figure 11 C represent to have two supporting bulges, support the figure of the air bag 10 of bulge 30,31.Figure 10 A, Figure 11 A are the block diagrams that forms air bag 10 midway, and Figure 10 B, Figure 11 B are the block diagrams that forms air bag 10 afterwards.Figure 10 C, Figure 11 C are the figure that represents the arrow directions X observation air bag 10 from Figure 10 B, Figure 11 B, represent the air bag 10 that occupant 90 sees.
In the air bag 10 shown in Figure 10 A～Figure 10 C, the 2nd base cloth 14 is formed as band shape, and the edge at the two ends of the 2nd base cloth 14 is formed as curved shape (Japanese: gulf curved shape).In the air bag 10 shown in Figure 11 A～Figure 11 C, the 2nd base cloth 14 is formed as band shape, and the both ends of the 2nd base cloth 14 are formed as circular-arc (Japanese: Yen arcuation).By the 2nd above base cloth 14 being engaged in to the 1st base cloth 13 of tubular, an end 13F of the 1st base cloth 13 is formed as the shape corresponding with the shape of the 2nd base cloth 14.
Figure 12 A～Figure 12 C represents to have 3 supporting bulges, supports the figure of the air bag 10 of bulge 32～34, similarly represents air bag 10 with Figure 10 A～Figure 10 C.
In the air bag 10 shown in Figure 12 A～Figure 12 C, the 2nd base cloth 14 is formed as alphabetical Y shape.By the 2nd base cloth 14 being engaged in to the 1st base cloth 13 of tubular, an end 13F of the 1st base cloth 13 is formed as alphabetical Y shape, is formed with 3 supporting bulges in air bag 10, supports bulge 32～34.3 supporting bulges, the edge of supporting bulge 32～34 and be formed on base end part 22, the installation portion 11 of charging blower 2 is positioned at 3 supporting bulges, supports the central portion of bulge 32～34.
Figure 13 A～Figure 13 C represents to have 4 supporting bulges, supports the figure of the air bag 10 of bulge 35～38, similarly represents air bag 10 with Figure 10 A～Figure 10 C.
In the air bag 10 shown in Figure 13 A～Figure 13 C, the 2nd base cloth 14 is formed as crosswise.By the 2nd base cloth 14 being engaged in to the 1st base cloth 13 of tubular, an end 13F of the 1st base cloth 13 is formed as crosswise, is formed with 4 supporting bulges in air bag 10, supports bulge 35～38.4 supporting bulges, the edge of supporting bulge 35～38 and be formed on base end part 22, the installation portion 11 of charging blower 2 is positioned at 4 supporting bulges, supports the central portion of bulge 35～38.Also can surround like this installation portion 11 ground and form multiple supporting bulges (with reference to Figure 12 A～Figure 12 C, Figure 13 A～Figure 13 C).In this case, multiple supporting bulges surround installation portion 11, thus the protection bulge 20 that stably supporting is expanded.In addition, utilize multiple supporting bulges, can obtain the effect same with above-mentioned supporting bulge 30,31.
In addition, in the present embodiment, airbag apparatus 1 is arranged on to the pars intermedia of instrument carrier panel 82, but airbag apparatus 1 also can be arranged on the part except pars intermedia (top, bottom etc.) of instrument carrier panel 82.In addition, the present invention, regardless of the kind of airbag apparatus, can be applied to the airbag apparatus that comprises the air bag outstanding from vehicle component.For example, the present invention also can be applied to airbag device for driver's seat or be arranged on airbag device for driver's seat and the airbag apparatus of co-pilot seat between airbag apparatus.In each airbag apparatus, air bag is outstanding to each projected direction from the vehicle component that is provided with airbag apparatus.
Claims (9)
1. an airbag apparatus, it comprises and utilizes air bag that gas expands and the charging blower for supply gas in this air bag, this airbag apparatus is arranged on vehicle component, wherein,
Above-mentioned air bag comprises:
Protection bulge, it is given prominence to and protection occupant from above-mentioned vehicle component;
Installation portion, it is formed on the base end part by above-mentioned vehicle component side of above-mentioned protection bulge, and above-mentioned charging blower can be installed; And
Multiple supporting bulges, it is side-prominent to above-mentioned vehicle component from above-mentioned protection bulge, by expand above-mentioned protection bulge to be only the state support that above-mentioned base end part is contacted with above-mentioned vehicle component,
Above-mentioned multiple supporting bulge is formed on the both sides of above-mentioned installation portion or forms in the mode of surrounding above-mentioned installation portion.
2. airbag apparatus according to claim 1, wherein,
In the time that above-mentioned air bag expands, thereby being contacted with above-mentioned vehicle component, above-mentioned multiple supporting bulge supports above-mentioned protection bulge, this vehicle component is relative with the above-mentioned base end part of above-mentioned protection bulge.
3. airbag apparatus according to claim 1 and 2, wherein,
In the time that above-mentioned air bag expands, between a part for the above-mentioned base end part of above-mentioned vehicle component and above-mentioned protection bulge, be formed with gap.
4. according to the airbag apparatus described in any one in claim 1～3, wherein,
In the time forming above-mentioned air bag, above-mentioned multiple supporting bulges are formed on the position by above-mentioned vehicle component side than above-mentioned installation portion.
5. according to the airbag apparatus described in any one in claim 1～4, wherein,
At least a portion of above-mentioned protection bulge is formed as along with the cross sectional shape of expanding towards going by the top ends of occupant side from above-mentioned base end part under the state expanding.
6. according to the airbag apparatus described in any one in claim 1～5, wherein,
Above-mentioned vehicle component is the instrument carrier panel that can fix above-mentioned charging blower and above-mentioned installation portion,
Thereby above-mentioned multiple supporting bulge is contacted with the part of the above-mentioned installation portion upside of being positioned at of above-mentioned instrument carrier panel and supports above-mentioned protection bulge with the part that is positioned at above-mentioned installation portion downside.
7. airbag apparatus according to claim 6, wherein,
The distance of the top ends of the above-mentioned supporting bulge from above-mentioned installation portion to upside is different from the distance of the top ends of the above-mentioned supporting bulge from above-mentioned installation portion to downside.
8. according to the airbag apparatus described in claim 6 or 7, wherein,
Above-mentioned instrument carrier panel has upside receiving portion and downside receiving portion, and this upside receiving portion is for accepting the above-mentioned supporting bulge of upside, and this downside receiving portion is used for accepting the above-mentioned supporting bulge of downside,
The rigidity of above-mentioned upside receiving portion is higher than the rigidity of above-mentioned downside receiving portion.
9. according to the airbag apparatus described in any one in claim 1～8, wherein,
Above-mentioned air bag is made up of the 1st base cloth, the 2nd base cloth and the 3rd base cloth, the 1st base cloth is tubular, it is outstanding towards occupant from above-mentioned vehicle component in the time that above-mentioned air bag expands, thereby the 2nd base cloth engages with the end by above-mentioned vehicle component side of the 1st base cloth the opening that stops up this end, thereby the 3rd base cloth engages with the other end by occupant side of the 1st base cloth the opening that stops up this other end.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| JP2012-279359 | 2012-12-21 | ||
| JP2012279359A JP6085470B2 (en) | 2012-12-21 | 2012-12-21 | Airbag device |
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| CN103879369A true CN103879369A (en) | 2014-06-25 |
| CN103879369B CN103879369B (en) | 2017-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310714592.9A Active CN103879369B (en) | 2012-12-21 | 2013-12-20 | Airbag apparatus |
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| Country | Link |
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| JP (1) | JP6085470B2 (en) |
| CN (1) | CN103879369B (en) |
| DE (1) | DE102013114029A1 (en) |
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| US10647284B2 (en) | 2017-01-19 | 2020-05-12 | Joyson Safety Systems Japan K.K. | Driver airbag and driver airbag device |
| CN113335209A (en) * | 2021-06-25 | 2021-09-03 | 中国人民解放军63653部队 | A protection armor and police vehicle for police vehicle |
| CN114633712A (en) * | 2020-12-01 | 2022-06-17 | 现代摩比斯株式会社 | Airbag cushion for vehicle |
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| EP3486124B1 (en) * | 2014-03-31 | 2020-07-01 | Autoliv Development AB | Vehicular airbag device |
| CN106163884B (en) | 2014-04-11 | 2019-04-16 | 奥托立夫开发公司 | Airbag apparatus |
| JP6300902B2 (en) | 2014-04-25 | 2018-03-28 | オートリブ ディベロップメント エービー | Airbag device |
| WO2015198717A1 (en) | 2014-06-25 | 2015-12-30 | オートリブ ディベロップメント エービー | Air bag device |
| WO2016002384A1 (en) | 2014-06-30 | 2016-01-07 | オートリブ ディベロップメント エービー | Airbag device |
| US10358106B2 (en) | 2014-08-04 | 2019-07-23 | Autoliv Development Ab | Airbag apparatus |
| US10099647B2 (en) | 2016-09-21 | 2018-10-16 | Ford Global Technologies, Llc | Airbag assembly |
| JP6367511B1 (en) * | 2018-05-31 | 2018-08-01 | Ｊｏｙｓｏｎ Ｓａｆｅｔｙ Ｓｙｓｔｅｍｓ Ｊａｐａｎ株式会社 | Airbag |
| US10576924B2 (en) * | 2018-07-31 | 2020-03-03 | Toyoda Gosei Co., Ltd. | Vehicle airbag apparatus |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103879369B (en) | 2017-04-05 |
| JP6085470B2 (en) | 2017-02-22 |
| DE102013114029A1 (en) | 2014-06-26 |
| JP2014121965A (en) | 2014-07-03 |
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