CN100406309C - Airbag device for protecting knee - Google Patents
Airbag device for protecting knee Download PDFInfo
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- CN100406309C CN100406309C CNB2004101035019A CN200410103501A CN100406309C CN 100406309 C CN100406309 C CN 100406309C CN B2004101035019 A CNB2004101035019 A CN B2004101035019A CN 200410103501 A CN200410103501 A CN 200410103501A CN 100406309 C CN100406309 C CN 100406309C
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- knee
- protective plate
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- air bag
- knee protective
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- 210000003127 knee Anatomy 0.000 title claims abstract description 129
- 230000001681 protective effect Effects 0.000 claims abstract description 65
- 239000004033 plastic Substances 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 abstract 5
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 19
- 210000000078 claw Anatomy 0.000 description 8
- 239000000463 material Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 210000001364 upper extremity Anatomy 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
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Abstract
The present invention provides an air bag device for knee protection, which can use a knee protective plate for absorbing the kinetic energy of a knee of a moving passenger reliably. The present invention is slantwise provided with the knee protective plate (29) around an opening of an outer shell (14), so that an upper part is positioned at the back of an automobile. A common part (46) at the back of the automobile for covering the knee protective plate is arranged around an air bag channel part (56) of an air bag cover (45). The common part and the knee protective plate together enable the upper part to slope in a mode positioned at the back of the automobile. A reinforcing rib (47) generally along a plumb direction is arranged on the common part, which protrudes toward the knee protective plate and a front end plane (47a). A supporting surface (33) is arranged on the knee protective plate, and enables the knee protective plate (29) to generate plastic deformation corresponding to the extrusion force of the reinforcing rib extruding toward the front part. Moreover, the supporting surface is in parallel with the front end plane of the reinforcing rib. When extruding, the front part of the reinforcing rib supports the reinforcing rib (47).
Description
Technical field
The present invention relates to be arranged on passenger's knee the place ahead of taking a seat, can protect the airbag device for protecting knee of passenger's knee.
Background technology
The structure of present airbag device for protecting knee is to possess: the roughly box-type shell at the end arranged, is used to take in folding air bag, and at the rear view of vehicle side opening; And airbag cover, have the rear view of vehicle side that is used for the covering shell opening, and when airbag deployment expands openable air bag channel part (for example with reference to patent documentation 1).
In addition, in this airbag device for protecting knee, around shell aperture, be provided with the knee protective plate of plate-shape metal system, plastic deformation take place when passenger's knee touches, when air bag unexpansive, also can protect passenger's knee.This knee protective plate is so that top is positioned at the rear view of vehicle side, the mode that makes lower end side be positioned at vehicle front side is provided with obliquely, so that can guarantee near the space passenger's the tiptoe.In addition, airbag cover possesses the general portion that is arranged on around the air bag channel part, covers the rear view of vehicle side of knee protective plate.This general portion with the knee protective plate so that top is positioned at the rear view of vehicle side, the mode that makes lower end side be positioned at vehicle front side is provided with obliquely.
Patent documentation 1: the spy opens the 2003-40072 communique
Summary of the invention
But; in existing airbag device for protecting knee; constitute though the mode of plastic deformation can take place when contacting with passenger's knee the knee protective plate, it is that knee protective plate and the general portion of airbag cover that is provided with in the mode of the rear view of vehicle side that covers the knee protective plate are together so that top is positioned at the structure that the mode of rear view of vehicle side is provided with obliquely.Therefore; touch the general portion of airbag cover when passenger's knee; when general portion contacts with the knee protective plate to the extruding of knee protective plate side; general portion is by towards the extruding of knee protective plate side and during the knee protective plate butt of territory; general portion with respect to the knee protective plate up and down the direction skew slide, existence can not absorb the possibility of the kinetic energy of mobile passenger's knee fully by means of the knee protective plate.
The present invention proposes in order to address the above problem, and its purpose is that providing a kind of can absorb the airbag device for protecting knee of the kinetic energy of the passenger's knee that moves reliably by means of the knee protective plate.
Airbag device for protecting knee of the present invention is arranged on passenger's knee the place ahead of taking a seat, and has following structure:
Shell is taken in folding air bag, forms the roughly box-shaped that the end is arranged at the rear view of vehicle side opening; And
Airbag cover covers the rear view of vehicle side of this shell aperture, has openable air bag channel part when airbag deployment expands,
Around shell aperture, be provided with the knee protective plate that plastic deformation takes place, can protect the plate-shape metal system of passenger's knee obliquely when passenger's knee touches, make its top be positioned at the rear view of vehicle side,
Airbag cover has the general portion of the rear view of vehicle side that covers the knee protective plate around the air bag channel part,
General portion is provided with the knee protective plate with being tilted, makes top be positioned at the rear view of vehicle side,
It is characterized in that:
In the general portion of airbag cover, be provided with, front end face side-prominent to the knee protective plate roughly along the reinforced rib of vertical direction along fore-and-aft direction roughly,
On the knee protective plate; be provided with aerofoil; this aerofoil can make knee protective plate generation plastic deformation corresponding to the squeese pressure of the reinforced rib of the extruding of side forwards, and this aerofoil is parallel with the front end face of reinforced rib, support reinforced rib when reinforced rib side extruding forwards.
Airbag device for protecting knee of the present invention; when air bag is unexpansive; if the passenger moves forward; passenger's knee touches the general portion of airbag cover; general portion is the vehicle front side extruding to knee protective plate side, and then the reinforced rib that is provided with to the knee protective plate along fore-and-aft direction roughly and the aerofoil of knee protective plate connect side-prominently.The aerofoil that contacts with this reinforced rib roughly disposes along vertical direction.That is, aerofoil is with parallel with the front end face of reinforced rib, simultaneously with the moving direction of the projected direction of reinforced rib and reinforced rib roughly the mode of quadrature be provided with.Therefore, when reinforced rib contacted with aerofoil, the front end of reinforced rib did not take place with respect to the aerofoil out-of-position slip of direction, left and right directions up and down, thereby can utilize aerofoil, supports reinforced rib reliably.Consequently when passenger's knee touched, the knee protective plate can bear the squeese pressure of passenger's knee by the reinforced rib of airbag cover, thereby plastic deformation successfully takes place, and absorbed the kinetic energy of the passenger's knee that moves reliably.
Therefore, use airbag device for protecting knee of the present invention, can absorb the kinetic energy of mobile passenger's knee reliably by means of the knee protective plate.
Description of drawings
Fig. 1 is the concise and to the point longitudinal section of vehicle fore-and-aft direction of running condition that the airbag device for protecting knee of an embodiment of the invention is shown.
Fig. 2 is that the vehicle fore-and-aft direction of airbag device for protecting knee briefly amplifies longitudinal section.
Fig. 3 is the concise and to the point cutaway view at the III-III position of Fig. 2.
Fig. 4 is a concise and to the point decomposition diagram of observing the airbag cover, knee protective plate, shell and the stop component that use in this embodiment from vehicle front side.
Fig. 5 is the concise and to the point longitudinal section that the position of the reinforced rib that forms on airbag cover in the airbag device for protecting knee of this embodiment is shown, and is the figure that the V-V position of Fig. 3 is shown.
Fig. 6 is concise and to the point front elevation running condition, that observe from the rear view of vehicle side that the airbag device for protecting knee of this embodiment is shown.
Fig. 7 is the reinforced rib front end face in the airbag device for protecting knee of this embodiment of explanation and the concise and to the point cutaway view of the process that connects of aerofoil.
The specific embodiment
An embodiment of the invention below are described with reference to the accompanying drawings.Shown in Fig. 1,6, the vehicle front side that the airbag device for protecting knee S of present embodiment is arranged on chaufeur MD is the below of Steering gear 6, can protect the knee K (KL, KR) as passenger's chaufeur MD.
In addition, in this specification sheets about, about and front and back, the vehicle top to bottom, left and right, front and rear when being installed in airbag device for protecting knee S on the vehicle are corresponding.
As shown in Figure 1, Steering gear 6 possesses and bearing circle 5 bonded assembly Steering gear main bodys 7 and the steering column cover 10 that is provided with in the mode of the Steering gear main body 7 of coverage direction dish 5 belows.Steering gear main body 7 possesses main shaft 8 and covers main shaft 8 steering-column jacket 9 on every side.
Airbag device for protecting knee S possesses folding air bag 65; supply with the charging blower 58 that expands with gas to air bag 65; take in folding air bag 65 and charging blower 58 and the shell 14 of opening is arranged in the rear view of vehicle side; the airbag cover 45 of the rear view of vehicle side of the opening 14a of covering shell 14, and at the periphery of shell aperture 14a, be configured in the knee protective plate 29 of the vehicle front side position of airbag cover 45.
Shown in Fig. 1～5, shell 14 is made by plate-shape metal, is configured in the below of Steering gear 6.Shell 14 possesses the bottom wall portion 16 in the vehicle front side that is roughly the barrel-contoured surrounding wall portion 15 of four ribs, obstruction surrounding wall portion 15 of rear view of vehicle side opening.On surrounding wall portion 15, be provided with engaging claw 18 and engaging protrusion 19, be used for the aftermentioned upper side wall portion 51 and the A lower side wall portion 52 of airbag cover 45 are assembled into respectively at opposed upper wall portions 15a of above-below direction and lower wall portion 15b.In addition, on surrounding wall portion 15, also form the through hole 15c that the end of the aftermentioned main body 59 can make charging blower 58 is passed.
The engaging claw 18 that is provided with on upper wall portions 15a is outstanding upward from upper wall portions 15a, forms front end 18a side and leaves the opening 14a of shell 14, is the shape of J font roughly to the section of bottom wall portion 16 lateral bending songs.In addition, engaging claw 18 is provided with a plurality of (being 6 in the present embodiment) (with reference to Fig. 4) along left and right directions.Under the situation of present embodiment, each engages claw 18, as shown in Figure 4, by means of the connecting portion 18b along the left and right directions setting is connected at the position of root side (vehicle front side), constitutes an integral body.Each engages the periphery that claw 18 is fastened on front end 18a the 51a of connecting hole portion in the upper side wall portion 51 that is formed at airbag cover 45.
Be arranged on lower wall portion 15b and go up engaging protrusion 19 downwards to constitute from the outstanding mode of lower wall portion 15b.In addition, engaging protrusion 19 is provided with a plurality of (though not shown, claw is identical with engaging, and is provided with 6) along left and right directions.In addition, each engaging protrusion 19 possesses protrusion 19a, is passed in the 52a of connecting hole portion that forms on the A lower side wall portion 52 of airbag cover 45, and is outstanding downwards from A lower side wall portion 52.On protrusion 19, form the patchhole 19b of the rear end 26a that can insert the stop component 26 that forms with shell 14 splits.
Shown in Fig. 2,4, stop component 26 is for bending to the tabular of L font roughly, be provided with from the bottom wall portion 16 of shell 14 to lower wall portion 15b, rear end 26a is inserted patchhole 19b, form with door bolt disposes between the inside and A lower side wall portion 52 of the protrusion 19a that is fixed on each engaging protrusion 19, with each engaging protrusion 19 engaging, it can not be extracted out from the 52a of connecting hole portion thus.In addition, under the situation of present embodiment, stop component 26 is used for charging blower 58 is fixed to bolt 60c and nut 61 on the shell 14 shown in Fig. 2,3, is fixed on the shell 14 with charging blower 68.
In addition, be provided on the shell 14 that shell 14 is fixed to installation bracket 21,23 on the knee protective plate 29, these installation brackets 21,23 and shell 14 splits form.Installation bracket 21 is provided with 2 along left and right directions, and shown in Fig. 2～5, section is コ font roughly, is arranged to from bottom wall portion 16 to the side-prominent state of vehicle front.In addition, be provided with at each installation bracket 21 and can pass the through hole 21a that is used for bolt 22 fixing on the aftermentioned front side wall portion 40 of knee protective plate 29 and be fixed on through hole 21a periphery, be used to screw in the nut 21b of bolt 22.
Knee protective plate 29 possess main part 30 and with main part 30 splits bracket part 43 that form, that be used for main part 30 is installed to car body 1 side.Bracket part 43 is fixed on car body 1 side.
In addition, near the installation portion 34 that is provided with the edge part of general portion 31 on a plurality of bracket part 43 that are used for main part 30 is installed and fixed car body 1 side.Under the situation of present embodiment, installation portion 34 is arranged on these 5 positions, position as two edge sides about the position of the right border side on the position of the upper limb side of shell filling portion 36 left and right sides, general portion 31 tops, general portion 31 bottoms.Each installation portion 34 is formed for utilizing the mounting hole 34a on the bracket part 43 that is bolted to car body 1 side.
Shown in Fig. 2～4, shell filling portion 36 to be being provided with to the side-prominent mode of vehicle front from general portion 31, and is provided with in the mode around the surrounding wall portion 50 of covering shell 14, airbag cover 45.That is, shell filling portion 36 possesses: the upper side wall portion 37 on covering shell 14 and surrounding wall portion 50 tops; The left and right sidewall portion 38,39 of covering shell 14 and surrounding wall portion 50 left and right sides; The front side wall portion 40 of covering shell 14 front sides; And the A lower side wall portion 41 of covering shell 14 and surrounding wall portion 50 lower side.In addition, under the situation of present embodiment, left and right sidewall portion the 38, the 39th can cover the structure (with reference to Fig. 3,4) of side, surrounding wall portion 50 left and right sides.
In addition, on front side wall portion 40 and A lower side wall portion 41, be provided with mounting hole 40a, 40a, the 41a that can pass the bolt 22,24 that is used for fixing the installation bracket 21,23 that on shell 14, is provided with respectively.
That is, in the present embodiment, as follows shell 14 is fixed on the knee protective plate 29: bolt 22 is passed each mounting hole 40a, 21a, be tightened onto among the nut 21b of the periphery that is fixed on each mounting hole 21a; Bolt 24 is passed each mounting hole 41a, 23a, be tightened onto among the nut 23b of the periphery that is fixed on mounting hole 23a.
Bracket part 43 is corresponding with installation portion 34 on being arranged on general portion 31, is arranged on 5 positions.Be used for being connected with the reinforcement of instrument panel 2 of car body 1 side to being arranged on as the installation portion 34A of the upper limb side of shell filling portion 36 left and right sides, bracket part 43A, the 43A that 34A installs.In addition, be respectively applied for bracket part 43B, 43C that the installation portion 34B that is arranged on general portion 31 upper right corner, installation portion 34C and the installation portion 34D that is arranged on general portion 31 lower left corners in the lower right corner that be arranged on general portion 31 are installed, 43D and be connected (with reference to Fig. 6) with the not shown central pillar of car body 1 side, front vehicle body pillar etc. respectively.
Knee protective plate 29 is formed in air bag 64 when unexpansive, when the knee K of passenger MD when airbag cover 45 is touched general portion 31, can make the regulation position that plastic deformation takes place, absorb the structure of kinetic energy of the knee K of the passenger MD that moves.Under the situation of present embodiment, made as shown in Figure 7, when the reinforced rib 47 that forms on airbag cover 45 pushed the aerofoil 33 of recesses 32, recess 32 was to the vehicle front side shifting, make the position around the recess 32 that plastic deformation take place, thereby can absorb the structure of kinetic energy of the knee K of passenger MD.In addition; the deformation place of knee protective plate 29 is not limited to general portion 31; for example also can make when the knee K of passenger MD touches; general portion 31 integral body are to the vehicle front side shifting; be used in the regulation position that main part 30 is fixed on the bracket part 43 of car body 1 side the structure of plastic deformation takes place; in addition, also can make the structure that makes general portion 31 and bracket part 43 boths that plastic deformation take place.Certainly; knee protective plate 29 is not only when air bag 65 is unexpansive; and when air bag 65 launches to expand; if because of air bag 65 arrives bottom etc.; fail to sustain under the situation of kinetic energy of knee K of passenger MD with air bag 65; also can make the regulation position that plastic deformation takes place, absorb the kinetic energy of the knee K of the passenger MD that moves.
Air bag channel arrangement portion 49 possesses air bag channel part 56 and is arranged near the surrounding wall portion 50 of periphery of air bag channel part 56.Air bag channel part 56 is provided with in the mode of the opening 14a of covering shell 14, forms to such an extent that ratio open 14a is bigger, and forms the roughly rectangular tabular of covering opening 14a.Under the situation of present embodiment, 2 air bag channel parts that air bag channel part 56 is opened by direction up and down constitute.In addition, air bag channel part 56 in the upper end or the lower end be provided with the articulated section 55 of the centre of gration when opening, and be the position of H font roughly when the rear view of vehicle side around air bag channel part 56 is observed, be provided with the disconnection reservations 54 of thinner thickness.
The adjacent ground connection configuration of surrounding wall portion 15 outer circumferential sides of surrounding wall portion 50 and shell 14 is for to the side-prominent roughly four rib tubulars of vehicle front.Utilization is arranged on the upper side wall portion 51 on case peripheral wall portion 15 tops and is arranged on the A lower side wall portion 52 of case peripheral wall portion 15 bottoms in surrounding wall portion 50, airbag cover 45 is assembled on the shell 14.At the 51a of connecting hole portion that forms engaging claw 18 engagings that form on can be with surrounding wall portion 15 in the upper side wall portion 51 at shell 14.The 52a of connecting hole portion that passes at the protrusion 19a that forms the engaging protrusion 19 that forms on the surrounding wall portion 15 to make shell 14 outside on the A lower side wall portion 52.In addition, near the central authorities of the left and right directions of A lower side wall portion 52, be formed for making the outstanding notch recesses 52b (with reference to Fig. 4) of installation bracket 23 of shell 14 downwards.
In addition, in the present embodiment, can set the size of upside, A lower side wall portion 51,52 and each 51a of connecting hole portion, 52a for such size, promptly when airbag cover 45 is assembled on shell 14, airbag cover 45 is under the state that is installed on the vehicle, can absorb assembly error, and can move with respect to shell 14 with respect to lower faceplate 11b on every side.
Shown in Fig. 1～3, charging blower 58 is to make the cylinder mode that axially is provided with along the left and right vehicle wheel direction, possesses to be roughly columned main body 59 and diffuser 60.End in main body 59 is provided with a plurality of gas vent 59a.In addition, import with lead-in wire 63 bonded assembly adaptor unions 62 another distolateral connection with actuation signal with main body 59.Diffuser 60 possess can main body covered 59, the maintenance tube 60a of portion and a plurality of (being 2 in the present embodiment) bolt 60c that makes by plate-shape metal cylindraceous roughly from keeping the tube 60a of portion to give prominence to.Keep the structure of the tube 60a of portion to be: on the face of the rear view of vehicle side of the maintenance tube 60a of portion under the state that is installed on the vehicle, to offer and to make from the expansion of the gas vent 59a ejection of main body 59 a plurality of gas flow export 60b with the gas outflow.
In addition, the airbag actuation electric circuit inspection on being installed in vehicle is during to the frontal collisions of vehicle, and actuation signal is through going between 63 these charging blowers 58 of input and be installed in not shown airbag apparatus on the bearing circle 5.
The following describes the assembling of this airbag apparatus S.At first, bolt 60c is highlighted from through hole 65a, the end of main body 59 is highlighted from through hole 65b, charging blower 58 is received in the air bag 65.Folded airbag 65 then, with preventing that folding winding material that scatter, not shown from twining air bag 65.At this moment, highlight from winding material from the bolt 60c of the outstanding charging blower 58 of through hole 65a, 65b, the end of main body 59.
Each bolt 60c of charging blower 58 is highlighted from through hole 16a, and the end of charging blower main body 59 is highlighted from through hole 15c, charging blower 58 is received in the shell 14 with folding air bag 65.
Then, airbag cover 45 is assembled on the shell 14.At this moment, the claw 18 that respectively engages that at first will form on shell surrounding wall portion 15 inserts respectively among each 51a of connecting hole portion in the upper side wall portion 51 of airbag cover 45, end 18a is fastened on the periphery of the 51a of connecting hole portion.To insert each 52a of connecting hole portion on the A lower side wall portion 52 respectively in each engaging protrusion 19 that forms on the shell surrounding wall portion 15 afterwards.Again stop component 26 is configured to make rear end 26a to insert the state of the patchhole 19b of each the protrusion 19a that highlights from A lower side wall portion 52, and the bolt 60c of charging blower 58 is highlighted from stop component 26 in shell bottom wall portion 16 sides.Afterwards nut 61 is tightened onto on the bolt 60c of charging blower 58, just airbag cover 45 can be assembled on the shell 14, form air bag assembly SA.
Then, utilize the installation bracket 21,23 that is arranged on the shell 14, air bag assembly SA is installed and fixed on the main part 30 of knee protective plate 29.Utilize the bracket part 43 that is fixed on car body 1 side then, the main part 30 that is fixed with the knee protective plate 29 of air bag assembly SA is installed and fixed car body 1 side, and instrument carrier panel 11 (top panel 11a, lower faceplate 11b) is installed and fixed car body 1 side.Simultaneously, will with lead-in wire 63 bonded assembly adaptor unions 62 through the opening of the front side of the right side wall portions 39 of the shell filling portion 36 of knee protective plate main part 30, be connected on the main body 59 of charging blower 58.This operation utilization is used to be provided with the gap of end cover 12 and carries out.Afterwards, end cover 12 is installed, just airbag apparatus S can be installed on the vehicle.
After airbag apparatus S was installed on the vehicle, if through the 63 main body 59 input actuation signals to charging blower 58 that go between, expanding just sprayed from the gas vent 59a of charging blower 58 with gas, expands to flow in the air bag 65 with the gas flow export 60b of gas through diffuser 60.So air bag 65 expands, not shown winding material is disconnected, and the air bag channel part 56 of extruding gasbag lid 45, make to disconnect reservations 54 disconnections.Then, air bag channel part 56 is that centre of gration is opened up and down with articulated section 55, and air bag 65 launches to expand shown in Fig. 1,6 long and two-short dash line.
So; airbag device for protecting knee S with present embodiment; when air bag 65 is unexpansive; if passenger MD moves forward; the knee K of passenger MD touches the general portion 46 of airbag cover 45; general portion 46 is the vehicle front side extruding to knee protective plate 29 sides, and then the aerofoil 33 of the recess 32 that is provided with in reinforced rib 47 that knee protective plate 29 is provided with side-prominently and general portion 31 at knee protective plate 29 along fore-and-aft direction roughly connects.The aerofoil 33 that contacts with this reinforced rib 47 roughly disposes along vertical direction.That is, aerofoil 33 is with parallel with the front end face 47a of reinforced rib 47, simultaneously with the moving direction of the projected direction of reinforced rib 47 and reinforced rib 47 roughly the mode of quadrature be provided with.Therefore, when reinforced rib 47 contacted with aerofoil 33, relative aerofoil 33 direction, the slip of left and right directions out-of-position did not up and down take place in the front end of reinforced rib 47, thereby can utilize aerofoil 33, support reinforced rib 47 (with reference to Fig. 7) reliably.Consequently; when the knee K of passenger MD touched, knee protective plate 29 can be by the reinforced rib 47 of airbag cover 45, the squeese pressure of bearing the knee K of passenger MD; thereby plastic deformation can successfully take place, absorb the kinetic energy of the knee K of the passenger MD that moves reliably.
Therefore, with airbag device for protecting knee S of the present invention, can absorb the kinetic energy of the knee K of the passenger MD that moves reliably by means of knee protective plate 29.
In addition, in the airbag device for protecting knee S of present embodiment, airbag cover 45 can absorb the assembly error with respect to lower faceplate 11b on every side under the state that is installed on the vehicle, can assembling on shell 14 movably with respect to shell 14.In addition; because knee protective plate 29 is to the installation site of car body 1 side, the relations such as allocation position of 45 pairs of instrument carrier panels 11 of airbag cover; often under the state that is installed on the vehicle, the distance between the general portion 31 of knee protective plate 29 and the general portion 46 of airbag cover 45 is bigger.But; in the airbag apparatus S of present embodiment; owing in the general portion 46 of airbag cover 45, be provided with side-prominent reinforced rib 47 to the general portion 31 of knee protective plate 29; so even the distance between the general portion 31 of the general portion 46 of airbag cover 45 and knee protective plate 29 is bigger; by means of reinforced rib 47, can reduce the distance of airbag cover 45 and knee protective plate 29 in fact.Therefore, when the knee K of passenger MD touches, can promptly absorb the kinetic energy of the knee K of passenger MD by means of the knee protective plate 29 that plastic deformation can take place.
In addition; though in the present embodiment to be arranged on the below of Steering gear 6; being used to protect the airbag device for protecting knee S as the knee K of passenger's chaufeur MD is that example is illustrated, but airbag device for protecting knee S of the present invention also can be applied to be arranged in order to protect the passenger's knee that is landed on copilot's seat the airbag device for protecting knee of copilot Xi Qianfang.
Claims (1)
1. airbag device for protecting knee, this airbag device for protecting knee is arranged on passenger's knee the place ahead of taking a seat, and has following structure:
Shell is taken in folding air bag, forms the roughly box-shaped that the end is arranged at the rear view of vehicle side opening; And
Airbag cover covers the rear view of vehicle side of this shell aperture, has openable air bag channel part when above-mentioned airbag deployment expands,
Around above-mentioned shell aperture, be provided with the knee protective plate that plastic deformation takes place, can protect the plate-shape metal system of above-mentioned passenger's knee obliquely when above-mentioned passenger's knee touches, make the top of above-mentioned knee protective plate be positioned at the rear view of vehicle side,
Above-mentioned airbag cover has the general portion of the rear view of vehicle side that covers above-mentioned knee protective plate around above-mentioned air bag channel part,
Above-mentioned general portion is provided with above-mentioned knee protective plate with being tilted, makes the top of above-mentioned general portion be positioned at the rear view of vehicle side,
It is characterized in that:
In the general portion of above-mentioned airbag cover, be provided with, front end face side-prominent to above-mentioned knee protective plate roughly along the reinforced rib of vertical direction along fore-and-aft direction roughly,
On above-mentioned knee protective plate; be provided with aerofoil; this aerofoil can make above-mentioned knee protective plate generation plastic deformation corresponding to the squeese pressure of the above-mentioned reinforced rib of the extruding of side forwards; and this aerofoil is parallel with the front end face of above-mentioned reinforced rib, supports above-mentioned reinforced rib when the side extruding forwards of above-mentioned reinforced rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101035019A CN100406309C (en) | 2004-12-29 | 2004-12-29 | Airbag device for protecting knee |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101035019A CN100406309C (en) | 2004-12-29 | 2004-12-29 | Airbag device for protecting knee |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1796187A CN1796187A (en) | 2006-07-05 |
| CN100406309C true CN100406309C (en) | 2008-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004101035019A Expired - Fee Related CN100406309C (en) | 2004-12-29 | 2004-12-29 | Airbag device for protecting knee |
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| Country | Link |
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| CN (1) | CN100406309C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101776465B1 (en) * | 2016-03-14 | 2017-09-08 | 현대자동차주식회사 | Integrated crashpad and manufacturing method of the same |
| JP7243602B2 (en) * | 2019-11-29 | 2023-03-22 | トヨタ自動車株式会社 | knee airbag device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003205814A (en) * | 2002-01-11 | 2003-07-22 | Toyoda Gosei Co Ltd | Air bag device for knee protection |
| JP2004098891A (en) * | 2002-09-10 | 2004-04-02 | Toyoda Gosei Co Ltd | Knee protective airbag device |
| JP2004175194A (en) * | 2002-11-26 | 2004-06-24 | Toyoda Gosei Co Ltd | Knee protection airbag device |
| JP2004203229A (en) * | 2002-12-25 | 2004-07-22 | Toyoda Gosei Co Ltd | Occupant protective device |
-
2004
- 2004-12-29 CN CNB2004101035019A patent/CN100406309C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003205814A (en) * | 2002-01-11 | 2003-07-22 | Toyoda Gosei Co Ltd | Air bag device for knee protection |
| JP2004098891A (en) * | 2002-09-10 | 2004-04-02 | Toyoda Gosei Co Ltd | Knee protective airbag device |
| JP2004175194A (en) * | 2002-11-26 | 2004-06-24 | Toyoda Gosei Co Ltd | Knee protection airbag device |
| JP2004203229A (en) * | 2002-12-25 | 2004-07-22 | Toyoda Gosei Co Ltd | Occupant protective device |
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| CN1796187A (en) | 2006-07-05 |
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