CN102837660A - Knee air bag device - Google Patents

Knee air bag device Download PDF

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Publication number
CN102837660A
CN102837660A CN2012100484119A CN201210048411A CN102837660A CN 102837660 A CN102837660 A CN 102837660A CN 2012100484119 A CN2012100484119 A CN 2012100484119A CN 201210048411 A CN201210048411 A CN 201210048411A CN 102837660 A CN102837660 A CN 102837660A
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CN
China
Prior art keywords
air bag
bag cushion
bolt band
guides
airbag device
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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.)
Granted
Application number
CN2012100484119A
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Chinese (zh)
Other versions
CN102837660B (en
Inventor
李廷洙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hyundai Mobis Co Ltd
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Hyundai Mobis Co Ltd
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Publication date
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Publication of CN102837660A publication Critical patent/CN102837660A/en
Application granted granted Critical
Publication of CN102837660B publication Critical patent/CN102837660B/en
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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
    • 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
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/201—Packaging straps or envelopes for inflatable members
    • 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
    • B60R21/2338—Tethers
    • 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
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
    • B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
    • B60R2021/0051—Knees

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air Bags (AREA)

Abstract

The invention provides a knee air bag device capable of expanding from a lower side of an inner part of an instrument panel to an upper side of an outer part of the instrument panel. The knee air bag device comprises an air bag housing, which is disposed in the instrument panel lower than the height of the knees of the passenger; an air bag cushion, which is accommodated in the air bag housing, and can be expanded towards the upper side of the outer part of the instrument panel, and is disposed between the knees of the passenger and the instrument panel; a guider, which is disposed in the air bag housing, and can be rotated according to the expansion force of the air bag cushion to guide the air bag cushion to expand towards the upper side of the outer part of the instrument panel.

Description

The knee airbag device
Technical field
The present invention relates to the knee airbag device, relate in particular to the knee airbag device of being located at the gauge panel inner underside.
Background technology
In general, vehicle has the airbag apparatus as safety device, and air bag cushion receiver gases when being used to have an accident and expanding is protected the passenger with this.
This airbag apparatus is arranged on each position of vehicle as required, comprising: the operator's saddle airbag apparatus to be sitting in the driver on the operator's saddle and to be installed on the bearing circle in order to protect; The front passenger's seat airbag apparatus is in order to protect the upside that is sitting in the passenger on the front passenger's seat and is installed in glove box; Curtain airbag is installed along purline for the side of protecting the occupant; The knee airbag device is installed in the inside of gauge panel for the knee of protecting the passenger.
Wherein, Said knee airbag device is at the set inside airbag housing of said gauge panel; In said airbag housing, accommodate the charging blower and the said air bag cushion of the means that produce as gas; When vehicle had an accident, said air bag cushion received from the gas of charging blower and the expansion of expanding is protected passenger's knee with this.
Recently; The design limit of bringing for the surface that does not receive said gauge panel and can publicization between the car type; Said knee airbag device is arranged on said gauge panel in-to-in lower end, and said when the time comes air bag cushion launches and protection passenger's knee to the exterior upside of said gauge panel.
But, so when the knee airbag device is installed in said gauge panel in-to-in lower end, in the process that upside launches, may be stuck in the said gauge panel, and have the hidden danger of not launching to the exterior upside of said gauge panel at said air bag cushion.
Summary of the invention
Problem to be solved by this invention is, the knee airbag device that provides a kind of air bag cushion to launch from the exterior upside of the said gauge panel of side direction under the gauge panel in-to-in.
Problem of the present invention is not to be confined on the problem as mentioned above, and not mentioned to other problem can make those skilled in the art clearly understand by following record.
In order to solve above-mentioned problem, comprise according to the knee airbag device of the embodiment of the invention: airbag housing is located at the position lower than passenger's knee height in gauge panel; Air bag cushion is contained in the inside of said airbag housing, launches and between the knee and said gauge panel said passenger if gas flows into then to the exterior upside of said gauge panel; Guides is located at said airbag housing, rotates according to the expansion power of said air bag cushion, guides said air bag cushion to launch to the exterior upside of said gauge panel.
The details of other embodiment are included in the detailed explanation and accompanying drawing.
Knee airbag device of the present invention, according to the expansion power of air bag cushion, therefore the expansion of guides rotation time guiding air bag cushion has the inside that said air bag cushion can not be stuck in gauge panel, and the effect that can launch to the external upper of said gauge panel.
And; Be provided with the pad container that is used to hold said air bag cushion; And the said air bag cushion of said pad support of vessel must not hang down and launch to upside; Thereby when launching, said air bag cushion can between gauge panel and passenger knees, therefore have the effect that said air bag cushion can be expanded to the position that can protect passenger knees.
In addition; Be formed with upside the fold portion shorter of said air bag cushion than the length of downside; Thereby the warp tension ratio downside of upside is big when said air bag cushion launches; Therefore said air bag cushion is that the benchmark lateral bending that makes progress launches bent the time with the said portion of folding, and between said gauge panel and passenger knees, therefore also has the effect that said air bag cushion can be expanded to the position that can protect passenger knees.
Effect of the present invention is not to be confined on the effect as mentioned above, and not mentioned to other effect can make those skilled in the art clearly understand by the record of claim.
Description of drawings
Fig. 1 is the exploded perspective view according to the knee airbag device of the embodiment of the invention;
Fig. 2 is the cutaway view according to the bonding state of the knee airbag device of the embodiment of the invention;
Fig. 3 is the cutaway view that illustrates according to the operating state of the knee airbag device of the embodiment of the invention;
Fig. 4 is the scheme drawing that the forming process of the portion that folds shown in Figure 3 is shown;
Fig. 5 is the combination block diagram that airbag housing shown in Figure 1 and guides are shown;
Fig. 6 is the lateral plan of Fig. 5;
Fig. 7 is the exploded perspective view of Fig. 5.
(explanation of Reference numeral)
Figure BDA0000138539560000031
The specific embodiment
Usefulness of the present invention and characteristic and in order to reach the method for purpose, can through based on accompanying drawing will after the embodiment that states be able to clearly.But; The present invention is not the embodiment that is confined to following discloses; But can realize by different various forms; Present embodiment is just for full disclosure the present invention, informs scope of the present invention fully and provide that to those of ordinary skill in the art the present invention should be defined by the scope of claim.In whole specification sheets, identical reference marks refers to same inscape.
Below, with reference to the knee airbag device of description of drawings according to the embodiment of the invention.
Fig. 1 is the exploded perspective view according to the knee airbag device 100 of the embodiment of the invention; Fig. 2 is the cutaway view according to the bonding state of the knee airbag device 100 of the embodiment of the invention, and Fig. 3 is the cutaway view that illustrates according to the operating state of the knee airbag device 100 of the embodiment of the invention.
Referring to figs. 1 through Fig. 3, be arranged in the place ahead of operator's saddle and front passenger's seat according to the knee airbag device 100 of the embodiment of the invention, and be located at the inside of the gauge panel (instrument panel) 1 that is used to be provided with fascia panel, PA-system and interior environment system etc.
Knee airbag device 100 for the restriction on the surface (skin face) that do not receive gauge panel 1 and be common between the different car types, is arranged on gauge panel 1 in-to-in downside and is arranged in the position lower than passenger's knee height.
Knee airbag device 100, when car accident took place, air bag cushion 10 launched to the external upper of gauge panel 1, and is arranged between said passenger's the knee and gauge panel 1, protects said passenger's knee with this.
Knee airbag device 100 comprises: airbag housing 20 is located at gauge panel 1 in-to-in downside; Charging blower 30 is located at the inside of airbag housing 20, when car accident takes place, produces gas; Air bag cushion 10 is located at the inside of airbag housing 20, expands according to the gas that flows into from charging blower 30, and launches to the external upper of gauge panel 1; Pad container 40 is located at the inside of airbag housing 20, and is holding air bag cushion 10.
Charging blower 30 is located at the inside of air bag cushion 10, is attached to airbag housing 20 through attachment 35.When car accident took place, charging blower 30 produced gas and is supplied to air bag cushion 10.
Pad container 40, its front opening and be formed for that air bag cushion 10 comes in and goes out get hand-hole 45 discard.Air bag cushion more than 10 time is folding and be inserted into and get hand-hole 45 discard; And after being received into pad container 40; The front end of pad container 40 is sewed up and shielded and get hand-hole 45 discard, so that air bag cushion 10 must not break away from from geing hand-hole 45 discard, air bag cushion 10 together is received in the airbag housing 20 with pad container 40 thus.
In addition; Be contained in the air bag cushion 10 of 40 li in pad container; When car accident takes place when; Expand from charging blower 30 inflow gas, the filament that thereupon is sewn to pad container 40 front ends is opened open according to the swelling force of air bag cushion 10 gets hand-hole 45 discard, is deployed into the outside of gauge panel 1 thereby hand-hole 45 is got in air bag cushion 10 disengagings discard.
Pad container 40 supporting air bag cushions 10, thus can be not sagging when air bag cushion 10 is unfolded and launch to upside, and can be arranged between outside and passenger's the knee of gauge panel 1.
Promptly; Air bag cushion 10 be arranged in the knee height position that is lower than the passenger, gauge panel 1 in-to-in downside; Therefore in order to make air bag cushion 10 protection passengers' knee; Should launch and be arranged between gauge panel 1 and passenger's the knee to upside from the downside of gauge panel 1, and because pad container 40 supports air bag cushions 10 and makes that air bag cushion 10 can be not sagging and to the upside expansion, so air bag cushion 10 can be arranged between gauge panel 1 and passenger's the knee after being unfolded.
Front end at airbag housing 20 is formed with the protruding 22a of hook, is formed with at the front end with the corresponding pad container 40 of the front end of airbag housing 20 to be used to link up with the pocket for the punch head 40a that protruding 22a articulates.When air bag cushion 10 launched, pad container 40 was the benchmark sideway swivel that makes progress to link up with protruding 22a, and air bag cushion 10 launches to the external upper of gauge panel 1 thereupon, thereby can be arranged between gauge panel 1 and passenger's the knee.
Airbag housing 20 comprises: the upper body 22 that is arranged on pad container 40 upsides; And be arranged on the downside that fills up container 40 and the lower case 24 that combines with upper body 22.
Link up with the front end that protruding 22a is formed on upper body 22; Pocket for the punch head 40a is formed on the upper front end of pad container 40; When air bag cushion 10 launches; Pad container 40 is the benchmark sideway swivel that makes progress to link up with protruding 22a in supporting air bag cushion 10, can not launch to upside so that air bag cushion 10 is sagging.
At air bag cushion 10, be formed with that its upside is folded than the length of downside shortly and the portion that folds 15 that combines.Therefore for air bag cushion 10; If from charging blower 30 inflow gas; Then the short upside of length is bigger than the tension force (tension) of downside, thereby air bag cushion 10 can be that the benchmark lateral bending that makes progress launches bent the time with the portion of folding 15, and can be arranged between gauge panel 1 and passenger's the knee.
Fold portion 15 be arranged on the pad container 40 inside.Thereby if air bag cushion 10 is the benchmark lateral bending song that makes progress with the portion of folding 15, then according to the air bag cushion 10 bent power of lateral bending upwards, pad container 40 is the benchmark sideway swivel that makes progress to link up with protruding 22a, therefore can make air bag cushion 10 launch to the external upper of gauge panel 1.
Pad container 40 is preferably by being processed by expansion power institute bending flexibility (flexible) material of air bag cushion 10.In the present embodiment, pad container 40 forms to knitting (fabric) silicon-coated (silicon), so that the temperature that can bear the gas that results from charging blower 30.So, if pad container 40 is made up of flexible material, then when air bag cushion 10 be benchmark when making progress that lateral bending is bent to launch with the portion of folding 15, according to the air bag cushion 10 bent power of lateral bending upwards, fill up also bending of container 40, so that air bag cushion 10 launches to upside.
Upper interior at air bag cushion 10 is combined with top bolt band (tether) 50 through stitching, is combined with bottom bolt band 60 in the lower inner part of air bag cushion 10 through stitching.
Top bolt band 50 is arranged with bolt band 60 spaces, bottom, between top bolt band 50 and bottom bolt band 60, forms the gas passage of gas coming through.
Flow into the gas of 10 li of air bag cushions from charging blower 30; The said gas passage of when colliding, flowing through with top bolt band 50 and bottom bolt band 60; At this moment, according to the strength of the said gas that collides with top bolt band 50 and bottom bolt band 60, the power that is used for deployment balloon pad 10 increase that becomes.
In the present embodiment, top bolt band 50 and bottom bolt band 60 are set to a plurality of.
That is, top bolt band 50 comprises: in the air bag cushion 10, and at the position of launching to the outside of gauge panel 1, space and the first top bolt band 52, the second top bolt band 54 and the 3rd top bolt band 56 arranged; And in the air bag cushion 10, be arranged in the 4th top bolt band 58 of not staying airbag housing 20 in-to-in positions to the expansion of the outside of gauge panel 1.
In addition, bottom bolt band 60 comprises: and the first top bolt band 52 arrange separately and and the first top bolt band 52 between form the first bottom bolt band 62 of said gas passage; And the second top bolt band 54 arrange separately and and the second top bolt band 54 between form the second bottom bolt band 64 of said gas passage; And the 3rd top bolt band 56 arrange separately and and the 3rd top bolt band 56 between form the 3rd bottom bolt band 66 of said gas passage; And the 4th top bolt band 58 arrange separately and and the 4th top bolt band 58 between form the 4th bottom bolt band 68 of said gas passage.
The first top bolt band 52, the second top bolt band 54 and the 3rd top bolt band 56 form one deck, and the 4th top bolt band 58 forms two-layer.And the first bottom bolt band 62, the second bottom bolt band 64 and the 3rd bottom bolt band 66 form one deck, and the 4th bottom bolt band 68 forms two-layer.
In the present embodiment, the portion 15 that folds is through air bag cushion 10 is folding and sew up mutually with the 4th top bolt band 58 and to form.
In the explanation of present embodiment; The top bolt band 50 that illustrates is four; Air bag cushion 10 is sewed up mutually with the 4th top bolt band 58 and has been formed the portion of folding 15; But with the quantity of top bolt band 50 irrespectively, as long as in being arranged in air bag cushion 10, not launching and stay on the top bolt band (is the 4th top bolt band 58 at this) on the airbag housing 20 in-to-in positions, sew up air bag cushion 10 and form the portion 15 that folds and get final product to the outside of gauge panel 1.Promptly; In the position of staying airbag housing 20 in-to-in top bolt bands (is the 4th top bolt band 58 at this); Be formed with the portion of folding 15; Thereby as long as air bag cushion 10 is the hinge-point sideway swivel that makes progress with the portion of folding 15, then filling up container 40 is the hinge-point sideway swivel that make progress with the protruding 22a of hook of the upper front end that is formed on airbag housing 20, and air bag cushion 10 can be to gauge panel 1 exterior upside expansion thus.
In addition, the gas that results from charging blower 30 flow into the inside of air bag cushion 10 with high-temperature high-pressure state, so air bag cushion 10 has because of the damaged hidden danger of the temperature of said gas.And then, in order to prevent that air bag cushion 10 by the temperature of said gas and breakage in the inboard of air bag cushion 10, reaches to the position of the 4th bottom bolt band 68 via charging blower 30 from the 4th top bolt band 58, is provided with the protecting component 70 of the temperature that can bear said gas.
Fig. 4 is the scheme drawing that the forming process of the portion 15 that folds shown in Figure 3 is shown.Below, the process that forms the portion 15 that folds is described with reference to Fig. 4.
At first, with reference to Fig. 4 (a) figure,, behind the opposite side contact air bag cushion 10 of the 4th top bolt band 58, air bag cushion 10 is sewn onto the 4th top bolt band 58 and forms first 15a of portion that folds at a side contacts protecting component 70 of the 4th top bolt band 58.
Afterwards, like Fig. 4 (b) figure, in air bag cushion 10, it is folding and be sewn onto first 15a of portion that folds that the position of protecting component 70 will be set, and accomplishes the portion of folding 15 with this.
In addition, air bag cushion 10 side direction gauge panel 1 exterior upside under gauge panel 1 in-to-in launches, and therefore in the process of launching, has that possibility is blocked by the works in the gauge panel 1 and the possibility that can not launch to gauge panel 1 exterior upside.In order to prevent the generation of this situation, comprise guides 80 according to the knee airbag device 100 of the embodiment of the invention, be not stuck in the inside of gauge panel 1 and can launch to be used for air bag cushion 10 to gauge panel 1 exterior upside.
Guides 80 is arranged on the leading section of airbag housing 20, rotates according to the expansion power of air bag cushion 10, guides air bag cushion 10 not launch and launch to gauge panel 1 exterior upside to the inside of gauge panel 1 with this.
Guides 80 is formed on the front end of the lower case 24 that is arranged in side under the air bag cushion 10.
Guides 80 is arranged in the supporting of the upper body 22 of side on the air bag cushion 10.Guides 80 is formed with the pocket for the punch head 85 that is used to articulate the protruding 22a of hook that is formed at upper body 22.Link up with protruding 22a breakthrough form be formed in the pad container 40 pocket for the punch head 40a after, be clamped to the pocket for the punch head 85 that is formed at guides 80, thereby guides 80 rotatably is supported in upper body 22.
And then, when guides 80 is pushed in the expansion power according to air bag cushion 10, when being the benchmark rotation, can guide the air bag cushion 10 that launches the outside of gauge panel 1 into to link up with protruding 22a.
Below, specify airbag housing 20 and guides 80.
Fig. 5 is the combination block diagram that airbag housing 20 shown in Figure 1 and guides 80 are shown, and Fig. 6 is the lateral plan of Fig. 5, and Fig. 7 is the exploded perspective view of Fig. 5.
With reference to Fig. 5 to Fig. 7, lower case 24 is according to the expansion power of air bag cushion 10, and its leading section opens to downside.Lower case 24 comprises: side panel 24a forms as one with guides 80; Lower faceplate 24b combines with side panel 24a and guides 80, and separates with side panel 24a and guides 80 according to the expansion power of air bag cushion 10 and opened.
Side panel 24a is arranged in the both sides of lower faceplate 24b, and guides 80 is arranged in the front end of lower faceplate 24b.
In order to make lower faceplate 24b to be separated, between side panel 24a and lower faceplate 24b, and between guides 80 and the lower faceplate 24b, form at least one hole 24d respectively with side panel 24a and guides 80.In the present embodiment, hole 24d forms a plurality of, and constitutes lower faceplate 24b plate 24a and guides 80 (in the art, being referred to as tear line (tear line)) along the line of separating from the side.And then along with the expansion of air bag cushion 10, lower faceplate 24b is according to the expansion power of air bag cushion 10, and plate 24a and guides 80 separate and front end is opened from the side, and air bag cushion 10 can be from by the place ahead of open lower faceplate 24b protrusion and launch whereby.
Guides 80 comprises: basal part 82, and 24a forms as one with side panel, and is formed with pocket for the punch head 85, is supported by upper body 22; Pad guide portion 84 is forwards protruded and is bent from basal part 82, is used for air bag cushion 10 is guided to the outside of gauge panel 1.
Guides 80 is integrally formed in the front end of side panel 24a, and therefore in order to make guides 80 to rotate according to the expansion power of air bag cushion 10, the upside between side panel 24a and guides 80 is formed with insertion groove 24e.And then; If air bag cushion 10 promotes guides 80 from by open lower faceplate 24b protrusion the time; Then guides 80 is to the direction rotation of insertion groove 24e depression, thereby can guide air bag cushion 10 not to be stuck in the inside of gauge panel 1 and launch to gauge panel 1 exterior upside.In order to make guides 80 to be rotated by the expansion power of air bag cushion 10, lower case 24 and guides 80 are preferably processed by plastic material.
In addition, upper body 22 is formed with kink 22b.Upper body 22 is a benchmark with kink 22b, and its front end is inserted in insertion groove 24e, and the rear of insertion groove 24e in side panel 24a is formed with the joint portion 24c that combines with the kink 22b that is formed at upper body 22.Be formed at the protruding 22a of the hook of holding before the upper body 22 and step up to be arranged on the pocket for the punch head 85 that is formed at guides 80; The front end of upper body 22 is inserted in insertion groove 24e; The kink 22b that is formed at upper body 22 is combined in the joint portion 24c that is formed at lower case 24; When guides 80 is rotated by the expansion power of air bag cushion 10, make the lower case 24 of plastic material be unlikely to excessive deformation thus.For lower case 24 excessive deformations that can prevent plastic material, upper body 22 is preferably processed by steel (steel).
The effect according to the knee airbag device of the embodiment of the invention to constituting as stated describes as follows.
At first,, then flow into the inside of air bag cushion 10, begin to expand and launch thereupon air bag cushion 10 from charging blower 30 generation gases if car accident takes place.
Afterwards, according to the expansion power of air bag cushion 10, the lower faceplate 24b of lower case 24 plate 24a and guides 80 from the side separates and open to downside in the place ahead, and air bag cushion 10 promotes guides 80 when forwards being protruded by open lower faceplate 24b thus.
Then, guides 80 is according to the expansion power of air bag cushion 10 and to the direction rotation of insertion groove 24e depression, and guides air bag cushion 10 outside of gauge panel 1 into.And then air bag cushion 10 can not launch to the inside of gauge panel 1, and can launch to the outside.
At this moment, pad container 40 supporting air bag cushions 10 are not so that air bag cushion 10 is by sagging and can launch to upside.
And for air bag cushion 10, its upside folds shortly and sews up than the length of downside and forms the portion of folding 15, so upside is bigger than the tension force of downside effect, thereby air bag cushion 10 is that benchmark makes progress that lateral bending is bent to launch with the portion of folding 15.
Upwards lateral bending is bent along with air bag cushion 10, and the pad container 40 that is holding the elasticity material of air bag cushion 10 also together bears the upwards bent power of lateral bending with air bag cushion 10, and filling up container 40 thus is the benchmark sideway swivel that makes progress with the protruding 22a of the hook of airbag housing 20.
Afterwards, air bag cushion 10 launches to gauge panel 1 exterior upside, and is arranged between gauge panel 1 and the passenger knees.
And then when car accident took place, air bag cushion 10 can be arranged between gauge panel 1 and passenger's the knee, can prevent that therefore passenger's knee works direct and gauge panel 1 and gauge panel 1 from colliding.
As stated, according to knee airbag device 100 of the present invention, according to the expansion power of air bag cushion 10, the expansion of guiding air bag cushion 10 in the time of guides 80 rotation, so air bag cushion 10 can not be stuck in the inside of gauge panel 1 and launches to gauge panel 1 exterior upside.
And; Be provided with the pad container 40 that is used to hold air bag cushion 10, and the said air bag cushion 10 of pad container 40 supporting, and make it not sagging and launch to upside; Therefore air bag cushion 10 can be arranged between gauge panel 1 and passenger's the knee, thereby air bag cushion 10 can be expanded to the position that can protect passenger knees.
And; The upside of air bag cushion 10 is formed with the portion of folding 15 than the length of downside shortly; Thereby when air bag cushion 10 launched, upside was bigger than the tension force of downside, so air bag cushion 10 is that benchmark makes progress that lateral bending is bent to launch with the portion of folding 15; And be arranged between gauge panel 1 and passenger's the knee, so air bag cushion 10 can be expanded to the position of the knee that can protect the passenger.
The those of ordinary skill of technical field should be appreciated that under the situation that does not change technological thought or essential feature under the present invention, can the present invention be embodied as other concrete forms.Therefore, more than the embodiment that put down in writing be as general as exemplaryly, be not to be understood that to only being determinate.Scope of the present invention; Compare aforesaid detailed description; Should confirm by the scope of claim, and the meaning of claim scope and scope and all changes of deriving from equivalents or the form of variation should be interpreted as within the scope of the present invention.

Claims (19)

1. knee airbag device comprises:
Airbag housing is located at the position lower than passenger's knee height in gauge panel;
Air bag cushion is contained in the inside of said airbag housing, between the knee and said gauge panel if gas flows into then that exterior upside to said gauge panel launches said passenger;
Guides is located at said airbag housing, rotates according to the expansion power of said air bag cushion, guides said air bag cushion to launch to the exterior upside of said gauge panel.
2. knee airbag device according to claim 1 is characterized in that,
Said airbag housing comprises:
Upper body is arranged on the upside of said air bag cushion, supports said guides and makes said guides to rotate;
Lower case is arranged on the downside of said air bag cushion, and is formed with said guides.
3. knee airbag device according to claim 2 is characterized in that,
Said lower case comprises:
Side panel forms as one with said guides;
Lower faceplate combines with said side panel and guides, according to the expansion power of said air bag cushion, separates and is opened from said side panel and guides.
4. knee airbag device according to claim 3 is characterized in that,
Said side panel is arranged on the both sides of said lower faceplate,
Said guides is arranged on the front end of said lower faceplate.
5. knee airbag device according to claim 3 is characterized in that,
Between said side panel and the lower faceplate and between said guides and the lower faceplate, be formed with at least one hole respectively, can be separated with said side panel and guides to be used for said lower faceplate.
6. knee airbag device according to claim 3 is characterized in that,
Said guides between said side panel and said guides, is formed with insertion groove, so that can rotate.
7. knee airbag device according to claim 3 is characterized in that,
Said guides comprises:
Basal part forms as one with said side panel, and is supported by said upper body;
The pad guide portion is guided the outside of said gauge panel into from said basal part bending and with said air bag cushion.
8. knee airbag device according to claim 7 is characterized in that,
Said guides is formed with pocket for the punch head at said basal part, and is formed with the hook convexity that is used to be articulated in said pocket for the punch head, so that can rotate in said upper body.
9. knee airbag device according to claim 6 is characterized in that,
The front end of said upper body is inserted in said insertion groove,
At the rear of said insertion groove, be formed with the joint portion that combines with said upper body in the said side panel.
10. knee airbag device according to claim 9 is characterized in that,
Said upper body is a steel matter, and said lower case is a plastic material.
11. knee airbag device according to claim 1 is characterized in that,
Also comprise the pad container, this pad container is arranged on the inside of said airbag housing, is holding said air bag cushion, through supporting said air bag cushion, makes said air bag cushion not by sagging and can launch to the exterior upside of said gauge panel.
12. knee airbag device according to claim 8 is characterized in that,
Also comprise the pad container, this pad container is arranged on the inside of said airbag housing, is holding said air bag cushion, through supporting said air bag cushion, makes said air bag cushion not by sagging and can launch to the exterior upside of said gauge panel,
Be formed with to be used to insert at said pad container the protruding pocket for the punch head of said hook is set, being used for when the said air bag cushion expansion, said pad container can rotate.
13. knee airbag device according to claim 1 is characterized in that,
Said air bag is paid somebody's debt and expected repayment later and is formed with that upside folds than the length of downside and the portion that folds that combines shortly, thereby said air bag cushion is if there is gas to flow into, then with the said portion of folding be benchmark make progress lateral bending bent the time the exterior upside to gauge panel launch.
14. knee airbag device according to claim 13 is characterized in that, also comprises:
Top bolt band is arranged on the upper interior of said air bag cushion;
Bottom bolt band is provided with at the lower inner part and the said upper brushes band of said air bag cushion separately, and and said top bolt band between be formed for the gas passage that gas is flowed through.
15. knee airbag device according to claim 14 is characterized in that,
Said top bolt band comprises:
The position of in said air bag cushion, launching to the outside of said gauge panel, separately and the first top bolt band, the second top bolt band and the 3rd top bolt band that are provided with;
In said air bag cushion, do not stay the 4th set top bolt band of in-to-in position of said gauge panel to the expansion of the outside of said gauge panel.
16. knee airbag device according to claim 15 is characterized in that,
The said portion that folds is for forming folding the stitching mutually with said the 4th top bolt band of said air bag cushion.
17. knee airbag device according to claim 15 is characterized in that,
Said bottom bolt band comprises:
The first bottom bolt band is provided with the said first top bolt band separately, and the said first top bolt band between form said gas passage;
The second bottom bolt band is provided with the said second top bolt band separately, and the said second top bolt band between form said gas passage;
The 3rd bottom bolt band is provided with said the 3rd top bolt band separately, and said the 3rd top bolt band between form said gas passage;
The 4th bottom bolt band is provided with said the 4th top bolt band separately, and said the 4th top bolt band between form said gas passage.
18. knee airbag device according to claim 17 is characterized in that,
Also comprise charging blower, this charging blower is located at the inside of said air bag cushion, and combines with said airbag housing, be used for supplying with said air to said air bag cushion,
In said air bag cushion, reach to the position of said the 4th bottom bolt band via said charging blower from said the 4th top bolt band, also be provided with the protecting component of the temperature that can bear said gas.
19. knee airbag device according to claim 18 is characterized in that,
The said protecting component of a side contacts at said the 4th top bolt band; Opposite side at said the 4th top bolt band contacts said air bag cushion; Said air bag cushion is sewn onto said the 4th top bolt band and forms first fold after the portion; The position that said protecting component is not set in the said air bag cushion is folding and be sewn onto said first portion that folds, form the said portion that folds thus.
CN201210048411.9A 2011-06-21 2012-02-27 Knee air bag device Active CN102837660B (en)

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013108187A1 (en) 2012-12-05 2014-06-05 Hyundai Motor Company Fuel rail for an engine with dual injectors and method of controlling the fuel rail
KR102305957B1 (en) * 2015-07-17 2021-09-28 현대모비스 주식회사 Cushion of knee airbag apparatus
KR102454734B1 (en) * 2017-09-27 2022-10-14 현대모비스 주식회사 Knee airbag device
KR20220043551A (en) 2020-09-29 2022-04-05 현대모비스 주식회사 Knee air bag
KR20230058972A (en) 2021-10-25 2023-05-03 현대모비스 주식회사 Knee air bag
KR20230169656A (en) 2022-06-09 2023-12-18 현대모비스 주식회사 Knee air bag and air bag assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070246920A1 (en) * 2006-04-24 2007-10-25 Trw Automotive Gmbh Vehicle occupant restraint device comprising a gas bag
CN102310835A (en) * 2010-07-09 2012-01-11 现代摩比斯株式会社 Knee airbag apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4180415B2 (en) * 2003-03-26 2008-11-12 豊田合成株式会社 Rear seat airbag device
JP2004314763A (en) * 2003-04-15 2004-11-11 Toyoda Gosei Co Ltd Air bag device for protecting knee
KR100775447B1 (en) * 2006-08-08 2007-11-12 델파이코리아 주식회사 Knee air bag

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070246920A1 (en) * 2006-04-24 2007-10-25 Trw Automotive Gmbh Vehicle occupant restraint device comprising a gas bag
CN102310835A (en) * 2010-07-09 2012-01-11 现代摩比斯株式会社 Knee airbag apparatus

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