CN1796188A - Airbag for protecting knee - Google Patents
Airbag for protecting knee Download PDFInfo
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- CN1796188A CN1796188A CNA2004101035038A CN200410103503A CN1796188A CN 1796188 A CN1796188 A CN 1796188A CN A2004101035038 A CNA2004101035038 A CN A2004101035038A CN 200410103503 A CN200410103503 A CN 200410103503A CN 1796188 A CN1796188 A CN 1796188A
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- air bag
- passenger
- frenulum
- base fabric
- knee
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Abstract
The present invention relates to an air bag for protecting knee portion of passenger. Said air bag can be folded, and can be received in the front side of knee portion of the passenger taken seat. Said air bag includes said air bag main body and tie band, and said air bag main body contains air channel and air flowing hole. Said invention also provides the concrete structure of said air bag main body and its application method.
Description
Technical field
The present invention relates to be accommodated in foldedly the front side of the passenger's knee that is seated on the vehicle seat, expansion is flowed into gas and the expansion expansion, thereby can protect the airbag for protecting knee of passenger's knee.
Background technology
In the past, as airbag for protecting knee, there was the spy to open the disclosed structure of 2002-337649 communique.Existing airbag for protecting knee possesses the expansion of making and flows into and bag shape air bag main body that expands and the frenulum that is arranged in the air bag main body with gas.
The air bag main body of this air bag possesses passenger's side wall portion and the car body side wall portion when expand finishing, and the lower end side when finishing to expand is as the upstream portion of the expansion that flows into gas, with upper end side as the downstream portion that expands with gas.Frenulum is connected passenger's side wall portion with the car body side wall portion, make the air bag main body that expands when finishing keep roughly tabular.
In addition, frenulum is along the band shape of left and right directions and is configured in the air bag main body, setting can make expansion with the gas flow path that gas flows upward respectively between the left and right edges of its two ends, left and right sides and air bag main body inner peripheral surface, makes the air bag main body at expansion initial stage become the earth expansion at the left and right directions width.
In addition, the position directly over the frenulum of air bag main body forms near the middle part of the left and right directions of frenulum and can make expansion with the gas communication hole that gas flows upward, makes can guarantee to a certain degree resiliency at the expansion initial stage.
But; reason owing to the car body side structure; existence can not be configured in airbag device for protecting knee the situation of the passenger's who takes a seat center front side, and at this moment, the center of the airbag for protecting knee left and right directions when launching to expand end can not be configured in the central authorities in the passenger the place ahead of taking a seat.
In addition; though also exist and use airbag for protecting knee; make it finish the passenger's that expansion moves forward with protection knee; but passenger's knee has been positioned at the situation of front side when protection starts with airbag apparatus; at this moment; air bag is successfully entered between vehicle body-side member and the knee, to guarantee buffering effect.
In addition, as existing airbag for protecting knee, the international disclosed structure of reprint that discloses No. 02/04261 is arranged.This airbag for protecting knee makes upper limb when expand finishing be roughly linearity along left and right directions, and the neighboring of the car body side base fabric of passenger side base fabric by the passenger side that will be made of the fabric of roughly the same shape and car body side is sewed up mutually and formed.
In addition, neighboring as the base fabric that will be made of two fabrics is sewed up the air bag that forms mutually, exist as the spy open clear 52-5126 communique disclosed, make the woven design of two base fabrics depart from 45 ° mutually, so that can keep discoideus expansion end shape distortionless and obliquely.
But, existing airbag for protecting knee, being shaped as when finishing owing to launching to expand is roughly rectangular tabular, also has, and lower end side is fixed on the car body side.Is that free end launches to expand with the upper end side,, makes to be unlikely that upper end side is twisted and inclination and finish expansion so must consider to set with interference of components on every side etc.
In addition, the neighboring of two base fabrics is sewed up the air bag of formation mutually, though can prevent from distortion and launch obliquely to expand, it is the air bag that bearing circle is used, and is the air bag that circular base fabric is sewed up mutually.Therefore, the woven design that is difficult to make such two circular base fabrics departs from 45 ° design former state mutually and directly applies to unchangeably and have free end, launch to expand into the roughly tabular airbag for protecting knee of oblong.
Summary of the invention
Even the 1st purpose of the present invention provide a kind of air bag of expanding of being through with the left and right directions misalignment center of the passenger left and right directions approaching with it, also can protect the airbag for protecting knee of passenger's knee effectively.
The 2nd purpose of the present invention provides and a kind ofly can suppress useless distortion and inclination and finish the airbag for protecting knee of expansion.
Can utilize the airbag for protecting knee of following structure to realize the 1st purpose of the present invention.
Airbag for protecting knee is accommodated in the passenger's who takes a seat knee front side with being folded, and can expand to launch and protection passenger's knee, and possess following structure,
Air bag possesses: the passenger's side wall portion when having the expansion end and the air bag main body of car body side wall portion; With the frenulum that is arranged in this air bag main body,
Air bag main body constitutes as follows, and the lower end side when promptly finishing with expansion is used the downstream portion of gas as the upstream portion of the expansion that flows into gas with upper end side as expanding,
Frenulum constitutes as follows, is about to passenger's side wall portion and is connected with the car body side wall portion, and it is roughly tabular that the air bag main body that expands when finishing is kept, and becomes the band shape along left and right directions when air bag main body expands end,
Frenulum is provided with the gas flow path that expansion is flowed upward with gas respectively between the inner peripheral surface of two ends, the left and right sides and air bag main body, and near the middle part of left and right directions, possesses the gas communication hole that expansion is flowed upward with gas,
Frenulum is provided with as follows, that is, the center of the air bag left and right directions when the gas communication hole being departed from expand to finish is configured in the center of passenger's left and right directions of taking a seat.
Utilize the airbag for protecting knee of said structure; though when expand finishing the misalignment of left and right directions the center of passenger's left and right directions of taking a seat; but because the gas communication hole of frenulum is configured in the center of passenger's left and right directions; even so the passenger about two knees be positioned at front side; air bag when expanding also can prevent obstruction that the gas communication hole causes because of a side knee of the close air bag left and right directions central side among two knees, narrow down.Consequently, can make expand with gas through the gas communication hole successfully flow to frenulum directly over the position, make this directly over the position be configured between the narrow vehicle body-side member and knee, and then, can guarantee this position buffering effect.Certainly; the left and right sides at frenulum is provided with the gas flow path that expansion is flowed upward with gas; the ratio frenulum of air bag more leans on the position of top; by means of the expansion gas that flows through these gas flow paths; amplitude is widely launched to expand; and then, also promote to expand with gas by means of the expansion of flowing through the gas communication hole, can protect two knees approaching effectively with it.
In addition, if the gas communication hole is configured in the center of air bag left and right directions, left knee or the right knee near air bag center one side that depart from the passenger who the center of air bag left and right directions takes a seat make the gas communication hole plug, expansion is difficult to enter position directly over the frenulum of air bag with gas, be difficult to guarantee the buffering effect at position directly over the frenulum.
Therefore, with the airbag for protecting knee of said structure, even the misalignment of the air bag left and right directions that expands of being through with the center of the passenger left and right directions approaching with it, also can protect passenger's knee effectively.
Also have, the frenulum that possesses the gas communication hole is provided with the gas communication hole at the center of left and right directions, can obtain following effect, effect.
That is, air bag is a benchmark from the center with passenger's left and right directions in expansion phase, is configured near three places of the gas flow path in the symmetrical locational gas communication hole and the frenulum left and right sides, and expansion is flowed upward with gas.Therefore, even in the expansion phase of air bag the passenger with about the two knees contacted position of passenger's side wall portion that is placed on and removes the air bag in the folding process, about also can making two knees apart from the gas communication hole, about the distance of gas flow path impartial, the pressure of can accepting more evenly to expand with gas.Consequently, air bag can apply the pressure that expands with gas more evenly to two knees in expansion phase, finish expansion.
In addition, preferably in the airbag for protecting knee of said structure, a plurality of frenulums are set along the vertical direction,
At least on the frenulum of the lower end side when being arranged at the expansion end, the gas communication hole is set.
Utilize the airbag for protecting knee of said structure,, can make the air bag main body that expands when finishing keep tabular effectively because a plurality of frenulums are set in air bag main body along the vertical direction.In addition; when airbag for protecting knee is made such structure; if on the frenulum of the lower end side (upstream portion side) when being arranged at the expansion end gas communication hole is set; can make expand with gas through the gas communication hole successfully flow to frenulum directly over the position; position is configured between the narrow vehicle body-side member and knee directly over making this; and then, can guarantee the buffering effect at this position.Certainly, can also make the structure that the frenulum that is arranged on upper end side also is provided with the gas communication hole.
In addition,, preferably use, and, constitute frenulum another distolateral 2 blocks of clothes that sew up mutually with the distolateral passenger's of a being stitched to side wall portion or a car body side wall portion to the airbag for protecting knee of said structure,
The part that each cloth of formation frenulum possesses the side end that will sew up mutually cuts, and constitutes the notch recesses in gas communication hole.
Airbag for protecting knee with said structure; because frenulum is by with a distolateral passenger's side wall portion or the car body side wall portion of being stitched to; another distolateral 2 blocks of clothes that sew up are mutually constituted; so the operation of when air bag is made frenulum being sewed up to each wall portion is easy, in the time of can reducing the worker of air bag and cost.
In addition,,,, be arranged to roughly wire respectively along left and right directions with the suture site that the other end that constitutes the above-mentioned cloth of frenulum sews up mutually preferably in the left and right sides of notch recesses to the airbag for protecting knee of said structure,
At the inside circumference of notch recesses, form front-end configuration at switch-in part than the more close frenulum private side in the end of each suture site.
In the airbag for protecting knee of said structure, when the expansion along with air bag main body, when pulling force worked to frenulum, stress concentration is the position near the switch-in part front end of the frenulum of notch recesses inside circumference.In addition, at the position that the cloth of frenulum is sewed up mutually, though the crossing position of the line that maximum masterpiece is used for extending with action direction from the front end edge pulling force of switch-in part (the roughly line that extends orthogonally with the suture site), but because the switch-in part front end is configured in end than the suture site from the farther frenulum private side of notch recesses, so maximum power is applied in the suture site than position more in the inner part, end.Promptly, at pulling force frenulum is done the time spent, can reduce to be applied near the power in end, suture site, can reduce near the stress concentration of sewing thread the end that acts on the suture site, though thereby have the notch recesses that forms the gas communication hole, also can improve the mutual suture strength of the cloth of frenulum.
In addition, can utilize the airbag for protecting knee of following structure to realize the 2nd purpose of the present invention.
Airbag for protecting knee can be protected passenger's knee, is accommodated in the passenger's who takes a seat knee front side with being folded,
Air bag constitutes as follows, that is, make to be shaped as that roughly oblong is tabular when launch to expand finishing, and lower end side is fixed on the car body side, is that free end launches to expand with the upper end side,
The upper limb of air bag when expand finishing is the roughly linearity along left and right directions, and the neighboring of the car body side base fabric of the passenger side base fabric of the passenger side that will be made of the fabric of roughly the same shape and car body side mutually combines and form,
Passenger side base fabric and car body side base fabric one of them the warp of fabric or parallel along roughly left and right directions setting, make the upper limb of the air bag when it roughly finishes along launching to expand,
Passenger side base fabric and car body side the base fabric wherein warp of another fabric or parallel are provided with 45 ° the upper limb of the angle of cut and the air bag when finishing that launches to expand roughly crossingly.
In the airbag for protecting knee of said structure, be roughly the upper limb almost parallel of straight line on the air bag left and right directions a when side's of passenger side base fabric and car body side base fabric warp or parallel are set to such an extent that finish with expansion.Therefore, the passenger side base fabric or the car body side base fabric (for the parallel sides base fabric) that are difficult to take place the upper limb almost parallel of its woven design and air bag twist and such distortion of tilting, on the contrary, the warp of the opposing party's roughly rectangular car body side base fabric or passenger side base fabric (for intersecting the side base fabric) or parallel are so that roughly 45 ° the angle of cut and the upper limb of air bag intersect, woven design with respect to a side parallel sides base fabric, as twill road direction, the neighboring of parallel sides base fabric is not stretched with exerting an influence easily.Consequently; at airbag for protecting knee is fixed end with the lower end side; when being free end expansion expansion with the upper end side; the upper limb side of passenger side base fabric and car body side base fabric can not be distorted and roughly launch expand along left and right directions obliquely, can not be distorted from top to the bottom of the air bag that links to each other with the upper limb side and obliquely along with the upper limb side is launched expansion.
Therefore, with the airbag for protecting knee of said structure, can suppress useless distortion and inclination and finish expansion.
In addition, if the base fabric that intersects with roughly 45 ° the angle of cut and upper limb with warp or parallel is as the passenger side base fabric, then the mode that intersects with wrong path line direction and its roughly rectangular each limit of passenger side base fabric is provided with warp and parallel, thereby stretch easily, on the contrary, car body side base fabric is provided with warp and parallel in the mode of roughly rectangular each limit almost parallel with it, thereby is difficult to stretch.Promptly, when airbag deployment expands, because car body side base fabric does not stretch, and the passenger side base fabric stretches, so the passenger side base fabric of air bag expands, makes car body side base fabric easily near the car body side, inhibition is useless outstanding to passenger's knee side, be easy to make it to launch upward to expand,, also can make the air bag that launches expansion enter this easily and be configured with gap even passenger's knee is narrow and small with the gap between the vehicle body-side member in the place ahead of this knee along vehicle body-side member.
In addition, the base fabric that also can be on the contrary intersects with roughly 45 ° the angle of cut and upper limb with warp or parallel is as car body side base fabric.
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 the air bag that uses an embodiment of the invention is shown.
Fig. 2 is the concise and to the point amplification longitudinal section of vehicle fore-and-aft direction of the airbag device for protecting knee of present embodiment.
Fig. 3 is the concise and to the point amplification longitudinal section of vehicle fore-and-aft direction of the airbag device for protecting knee of present embodiment, and is corresponding with the III-III position of Fig. 2.
Fig. 4 is the concise and to the point front elevation of the airbag device for protecting knee of present embodiment.
Fig. 5 is the front elevation of air bag of state of the built-in charging blower of present embodiment, shows the state of frenulum.
Fig. 6 is the longitudinal section of the air bag of present embodiment, and is corresponding with the VI-VI position of Fig. 5.
Fig. 7 is the longitudinal section of the air bag of present embodiment, and is corresponding with the VII-VII position of Fig. 5.
Fig. 8 is the front elevation and the back view of the air bag of present embodiment, shows the state that strengthens cloth respectively.
Fig. 9 is the front elevation that the cloth of the air bag lower side frenulum that constitutes present embodiment is shown.
Figure 10 is the figure of folding process of the air bag of explanation present embodiment.
The figure of air-flow when Figure 11 is the airbag inflation of explanation present embodiment.
Figure 12 is the front elevation of the air bag of another embodiment.
Figure 13 is the sectional elevation at the XIII-XIII position of Figure 12.
Figure 14 is the front elevation that the cloth that constitutes air bag lower side frenulum shown in Figure 12 is shown.
The specific embodiment
Following according to drawing detailed description an embodiment of the invention.
The airbag for protecting knee 46 that can realize the of the present invention the 1st and the 2nd purpose is used among the airbag device for protecting knee S.Shown in Fig. 1,4, the airbag device for protecting knee S of present embodiment is arranged on the below as the Steering gear 9 of the vehicle front side of chaufeur MD, so that enough protections are as the knee K (KL, KR) of passenger's chaufeur MD.
In addition, about in this specification sheets, the relation of all around is that to be installed in state on the vehicle with airbag apparatus S be benchmark, about the vehicle when installing, the relationship consistency of all around.
In addition, under the situation of present embodiment, airbag apparatus S from the square left lateral deviation of the following general plan of the Steering gear 9 of car body 1 side from, as shown in Figure 4, the air bag 46 that expands of being through with is provided with the center C 0 of its left and right directions from the center C 1 of the chaufeur MD left and right directions of taking a seat, to left deviation distance X.
As shown in Figure 1, Steering gear 9 possesses and bearing circle 8 bonded assembly Steering gear main bodys 10 and the steering column cover 13 that is provided with in the mode of the Steering gear main body 10 of coverage direction dish 8 belows.Steering gear main body 10 possesses main shaft 11 and covers and turns to steering-column jacket 12 around the main shaft 11.
Steering column cover 13 is made by being roughly the barrel-contoured synthetic resin of four ribs, along the axial setting of Steering gear main body 10, to cover Steering gear main body 10.Steering column cover 13 be oblong roughly, the curve form that upwarps at the fore-and-aft direction formation rear of vehicle from the back 13a at the outstanding position of instrument carrier panel 14.
Airbag device for protecting knee S possess folding air bag 46, to air bag 46 supply with expand with the charging blower 38 of gas, take in folding air bag 46 and charging blower 38 and at the shell 17 of rear view of vehicle side opening, and the airbag cover 27 of rear view of vehicle side that covers the opening 18a of shell 17.
Shown in Fig. 2～4, shell 17 is made by plate-shape metal, is configured in the lower side of Steering gear 9, is made of the body 18 of case shape, the panel part 24 of extending to foreign side from body 18 rear ends.Body 18 possesses and is roughly the barrel-contoured surrounding wall portion 19 of four ribs, and the bottom wall portion 22 of stopping up the vehicle front side of surrounding wall portion 19, also possesses roughly rectangular opening 18a in the rear view of vehicle side simultaneously.The outside face side at the opposed wall 19a of portion of above-below direction, 19b of surrounding wall portion 19 is provided with the portion of connecting wall up and down 30,31 that is used for airbag cover 27 respectively and is assembled into a plurality of engagement sections 20 (20U, 20D) on the shell 17.
Each engagement section 20U of being provided with of the outside face side of the 19a of wall portion of side up, its section is roughly zigzag, make among the 30a of connecting hole portion of the upper side wall portion 30 that can insert airbag cover 27, with the peripheral clamping hooked that engages of the 30a of connecting hole portion.These engagement sections 20U is provided with a plurality of in wall portion 19a upper edge left and right vehicle wheel direction.
Engagement section 20D in the outside face side setting of the 19b of wall portion of lower side forms the section that is roughly the U font, makes the engaging protrusion of the 31a of connecting hole portion of the A lower side wall portion 31 that can insert airbag cover 27.This engaging protrusion 20D makes at the 19b of wall portion and is provided with a plurality of along the left and right vehicle wheel direction.Then, will be used for being implemented in door bolt member 21 each the engaging protrusion 20D of insertion that after each 31a of connecting hole portion inserts, stop extraction from the 31a of connecting hole portion.This door bolt member 21 possesses a plurality of insertion section 21a between the inner peripheral surface that can insert A lower side wall portion 31 outside faces and each engaging protrusion 20D respectively, is fixed on the shell 17 in vehicle front side integratedly.In addition, door bolt member 21 fixedly carrying out as follows on shell 17 promptly to being used for charging blower 38 being fixed to bolt 40c on the shell 17 when screwing nut 41, by together fastening, thereby is fixed on the bottom wall portion 22 of shell 17.
In addition, on the 19c of wall portion of surrounding wall portion 19 side sides, the through hole 19d (with reference to Fig. 3) that formation can make the body 39 of charging blower 38 pass.In addition, on bottom wall portion 22, be formed for passing 2 through hole 22a of the bolt 40c of charging blower 38.
Around opening configuration portion 29 with opening configuration portion 29 in abutting connection be provided with lower faceplate 14b.Under the situation of present embodiment, opening configuration portion 29 and lower faceplate 14a are at the face of rear view of vehicle side roughly on same plane (with reference to Fig. 3).In addition, opening configuration portion 29 possesses air bag channel part 36 and the side wall portion up and down 30,31,32,33 that is set near the positions of air bag channel part 36 peripheries.
Air bag channel part 36 forms more biggerly and cover the roughly rectangular tabular of opening 18a than the opening 18a of shell 17.In the present embodiment, 2 air bag channel parts being opened by direction up and down of air bag channel part 36 constitute.In addition, each air bag channel part 36 in the upper end or the lower end be provided with the articulated section 35 of the centre of gration when opening, and be viewed as the disconnection reservations 34 that the position of H font roughly is provided with thinner thickness in the rear view of vehicle side around air bag channel part 36.
Upper side wall portion 30, A lower side wall portion 31, left side wall portion 32 and right side wall portions 33 are adjacent with the outer circumferential side of the surrounding wall portion 19 of outer cover body portion 18 respectively, to be provided with to the side-prominent mode of vehicle front.In addition, under the situation of present embodiment, being arranged near the upper side wall portion 30 the upper wall portions 19a of surrounding wall portion 19 and being arranged near the lower wall portion 19b A lower side wall portion 31 becomes airbag cover 27 is connected to connecting wall portion on the shell 17, upper side wall portion 30 possesses a plurality of connecting hole 30a of portion that are used for engagement section 20U engaging, and A lower side wall portion 31 possesses a plurality of connecting hole 31a of portion that are used for engagement section 20D engaging.
Shown in Fig. 2,3, general portion 28 forms as follows: from the amount of opening configuration portion 29 to the wall thickness of vehicle front side depression lower faceplate 14b, thereby with the lower faceplate 14b interference that is arranged on around the opening configuration portion 29.In addition, lower faceplate 14b and general portion 28 are fixed on not shown predetermined position by means of anchor clamps etc.
Shown in Fig. 2,3, charging blower 38 is the cylinder modes that axially are provided with along the left and right vehicle wheel direction, possesses to be roughly columned body 39 and diffuser 40.End at body 39 is provided with a plurality of gas vent 39a.In addition, import with lead-in wire 43 bonded assembly adaptor unions 42 another distolateral connection with actuation signal with body 39.Diffuser 40 possess can cover body 39, roughly the maintenance tube 40a of portion that makes with plate-shape metal cylindraceous and a plurality of (being 2 in the present embodiment) bolt 40c from keeping the tube 40a of portion to give prominence to.On the face of the rear view of vehicle side of the maintenance tube 40a of portion under the state that is installed on the vehicle, offered and to have made a plurality of gas flow export 40b that flow out with gas G by the expansion of the gas ejection 39a ejection of body 39.
In addition, the airbag actuation electric circuit inspection on being installed in vehicle is during to the frontal collisions of vehicle, and actuation signal 43 inputs to charging blower 38 simultaneously and is installed in not shown airbag apparatus on the bearing circle 8 through going between.
Air bag 46 its structures comprise make expand with gas G flow into, the air bag main body 49 of expansive bag shape and when air bag main body 49 expands, produce tension, shape when air bag main body 49 is expanded end is constrained to roughly tabular 2 frenulums 53,54 up and down.Shown in Fig. 1,4,5, air bag 46 being shaped as when launch to expand finishing is roughly rectangular tabular, possesses to be positioned at lower end 46b side, to take in charging blower 38, to become the upstream portion 48 that expands with the upstream side position of gas G; And the width that is positioned at upper end 46a side, left and right directions 48 bigger than upstream portion, become the downstream portion 47 that expands with the downstream side part of gas G.Near car body side base fabric 51 sides of this upstream portion 48 position, becoming launches to expand at air bag 46 is accommodated in the outer cover body portion 18 when finishing, and utilizes charging blower 38 and be maintained at installation portion 51a in the outer cover body portion 18.In addition, at this position of upstream portion 48 51a, form 2 through hole 48a, 48a and a through hole 48b (with reference to Fig. 3,8).Through hole 48a, 48a are used to make each bolt 40c of charging blower 38 to pass, and through hole 48b is used to make the body 39 of charging blower 38 to pass.In addition, the installation portion 51a of upstream portion 48 is outstanding from through hole 48b by the body 39 that makes charging blower 38, makes to keep the bottom wall portion 22 of tube 40a of portion and outer cover body portion 18 that the periphery of each through hole 48a is clamped, and is installed in the outer cover body portion 18.Therefore, the lower end 46b side of this air bag 46 is a fixed end, is that free end launches to expand with upper end 46a side.
Shown in Fig. 5～8, the neighboring of bag shape air bag main body 49 by 2 base fabrics (wall portion) 50,51 that will be made of fabrics such as having flexible polyester, polyamide filament mutually combines and forms, and is provided with enhancing cloth 52 (52F, 52B) at assigned position.2 base fabrics (wall portion) 50,51 of structure pouch air bag main body 49 are the car body side base fabrics (car body side wall portion) 51 that are positioned at the passenger side base fabric (passenger's side wall portion) 50 of chaufeur MD side and are positioned at steering column cover 13 sides when launching to expand.Passenger side base fabric 50 and car body side base fabric 51 are the roughly the same roughly oblong of profile.
But passenger side base fabric 50 possesses the 50a of enhancing portion that the position is installation portion 51a that is provided with that is used to strengthen charging blower 38, and strictly speaking, it and car body side base fabric 51 are not of similar shape.But in the upper limb 49a of air bag main body 49 side, base fabric is configured to linearity with mutual binding site 49c along left and right directions in the central authorities of the fore-and-aft direction of air bag upper end 46a, is the center with binding site 49c, and fore-and-aft direction forms symmetrically.
Strengthen the medial surface of cloth 52F at car body side base fabric 51, with from the installation position of frenulum 53,54 to the zone of the lower end 46b of the air bag 46 that comprises upstream portion 48, and, be configured in combination to the zone of base fabric 51 the right and lefts.Strengthen cloth 52B near the installation position of the frenulum 53,54 of the medial surface of passenger side base fabric 50, be configured in combination with the roughly rectangular zone of the neighboring partition distance of base fabric 50.
In addition, through hole 48a, the 48b of upstream portion 48 and car body side base fabric 51, the 50a of enhancing portion that extends from passenger side base fabric 50 and strengthen cloth 52F and be provided with integratedly.
In addition, the cloth 57A, the 57B that strengthen cloth 52F, 52B and frenulum 53,54 are identical with base fabric 50,51, weave the woven cloth that forms and form by having warp VS such as flexible polyester, polyamide filament and parallel HS.
In addition, the upper limb 49a of the air bag main body 49 when expanding end is configured to the rectilinear form along left and right directions, the warp VS of base fabric 50,51 or the lines of parallel HS (direction of line), as follows in the configuration that body 49 expands when finishing: car body side base fabric 51 becomes lines (direction of line) the parallel sides base fabric parallel with the upper limb 49a of air bag main body 49 of warp VS or parallel HS (being parallel HS in the present embodiment), the lines (direction of line) that passenger side base fabric 50 becomes warp VS or parallel HS with 45 ° angle of cut θ and this upper limb 49a crossing intersect the side base fabric.
In addition, when body 49 expands end, strengthening cloth 52F, 52B disposes in lines (direction of the line) mode parallel with the upper limb 49a of air bag main body 49 of warp VS or parallel HS (being parallel HS in the present embodiment), in addition, cloth 57A, 57B dispose in the mode with crossing 45 ° of this upper limb 49a with the lines (direction of line) of warp VS or parallel HS.
In addition, base fabric 50,51 strengthens cloth 52F, 52B and the cloth 57A of frenulum 53,54, the combination of 57B, under the situation of present embodiment, is to carry out by means of the stitching of using sewing thread 58, in addition, also can utilize methods such as bonding, cementing.
Each frenulum 53,54 all is to be made of 2 cloth 57A, 57B.That is, the end of 2 cloth 57A, 57A is combined with base fabric 50,51 respectively, and the other end is mutually combined, form frenulum 53, the end of 2 cloth 57B, 57B is combined with base fabric 50,51 respectively, and the other end is mutually combined, form frenulum 54.
Under the situation of present embodiment, two-layer, two uses overlappingly that each cloth 57A, 57B are converted into, and the wider width of formation base fabric 50,51 sides is trapezoidal.
In addition, each frenulum 53,54 is provided with to such an extent that make two ends, left and right sides 53a, 53b, 54c, 54d leave the edge part 49d of air bag main body 49 left and right directions, forms between the two ends, the left and right sides of frenulum 53,54 53a, 53b, 54c, 54d and air bag main body inner peripheral surface 49d and can make gas flow path LG, the RG that expands and flow upward with gas G.
In addition, shown in Fig. 5～7,9, be the frenulum 54 of lower side to upstream portion 48 sides, the position in the mutual approaching end side of 2 cloth 57B, 57B cuts out respectively and is roughly rectangular otch, offers to make the gas communication hole 55 of expanding with gas G circulation.Under the situation of present embodiment, gas communication hole 55 cuts out the notch recesses 54a that forms for rectangular otch roughly respectively by the edge with each cloth 57B, 57B and constitutes.
In addition, this gas communication hole 55 is provided with as follows: make it inconsistent with the center C 0 of air bag 46 left and right directions when finishing that expand, move to right-hand lateral deviation, consistent with the center C 1 of the chaufeur MD left and right directions of taking a seat (also can be described as steering column cover 13, Steering gear 9 or the center of the seat left and right directions sat as passenger's chaufeur MD).
In addition, shown in Fig. 7,9,, the switch-in part 56 that forms to allow cut channel go deep into the configuration mode of frenulum 54 private sides is set at the edge part of the inside circumference 54b of notch recesses 54a left and right directions side.Under the situation of present embodiment, near the position of switch-in part 56 edge part of the inside circumference 54b of notch recesses 54a fore-and-aft direction forms.
In addition, the gas communication hole 55 of the frenulum 54 of present embodiment is arranged on the center of left and right directions.That is, left end 54c is set greatlyyer apart from the distance of the right hand edge 46d of air bag 46 than right-hand member 54d apart from the distance of the left hand edge 46c of air bag 46.
Manufacturing about this air bag 46, the installation portion 51a that is the 50a of enhancing portion that will extend from passenger side base fabric 50 and car body side base fabric 51 is overlapping, sew up with sewing thread 58, to strengthen the position that cloth 52F overlaps onto installation portion 51a again, and will strengthen the position that cloth 52B overlaps onto passenger side base fabric 50, sew up with sewing thread 58 respectively.Then, cloth 57B, 57B are sewn onto on the base fabric 50,51, and sew up mutually, form frenulum 54, in addition, cloth 57A, 57A are sewn onto on the base fabric 50,51, and stitching forms frenulum 53 mutually.Then, if the neighboring of base fabric 50,51 is sewed up mutually, just can make air bag 46.
In addition, before the neighboring of base fabric 50,51 is sewed up mutually, make the end of bolt 40c and charging blower body 39 outstanding, charging blower 38 is placed in the air bag 46, sew up then from each through hole 48a, 48b.
The following describes the installation of airbag apparatus S on vehicle.At first, the air bag of making 46 is folding.Particularly, shown in Figure 10 A,, that the right and left 46c, 46d is folding to passenger side base fabric 50 sides from passenger side base fabric 50 and the car body side base fabric 51 overlapping states that are launched into the plane.Then shown in Figure 10 B, C, upper end 46a side direction car body side base fabric 51 rollover volumes with air bag 46, formation is along the crease-like folding that rolls of left and right directions, for another example shown in Figure 10 D, the left and right edges 60a, the 60b that finish the position 60 of rolling folding is folding to passenger side base fabric 50 sides, making it becomes the size that can be placed in the outer cover body portion 18, thereby finishes the folding of air bag 46.Afterwards, with preventing that the folding not shown winding material that ruptures that scatters from twining air bag 46.At this moment, highlight from winding material from the bolt 46c of the outstanding charging blower 38 of through hole 48a, 48b, the end of body 39.
Then make each bolt 40c of charging blower 38 outstanding, and make the end of charging blower body 39 outstanding, charging blower 38 is received in the outer cover body portion 18 with folding air bag 46 from through hole 19d from through hole 22a.
Afterwards, airbag cover 27 is assembled to shell 17.At this moment, at first, make upper side wall portion 30 pass the through hole 24a of panel part 24, each clamping hooked 24U is inserted each 30a of connecting hole portion, be fastened on the 30a of the connecting hole portion periphery of the upper face side of upper side wall portion 30.Then each engaging protrusion 24D is inserted each 31a of connecting hole portion of A lower side wall portion 31, the insertion section 21a of door bolt member 21 is inserted between the inner peripheral surface of the outside face of A lower side wall portion 31 and each engaging protrusion 20D, each bolt 40c is passed door bolt member 21, nut 41 is screwed on each bolt 40c again, just airbag cover 27 can be assembled on the shell 17.
Utilize carriage 4,5,6 then, each connecting portion 25 of shell 17 is installed and fixed car body 1 side, will be connected on the charging blower body 39 with lead-in wire 43 bonded assembly adaptor unions 42 simultaneously.Afterwards, instrument carrier panel 14, end cover 15 (with reference to Fig. 1,2) are installed, just airbag apparatus S can be installed on the vehicle.
After airbag apparatus S was installed on the vehicle, if through going between 43 to charging blower body 39 input actuation signals, expanding just sprayed from the gas vent 39a of charging blower 38 with gas G, and expanding flows in the air bag 46 through the gas flow export 40b of diffuser 40 with gas G.So air bag 46 expands, not shown winding material is disconnected, the air bag channel part 36 of extruding gasbag lid 27 makes to disconnect reservations 34 disconnections, and air bag channel part 36 is that centre of gration is opened up and down with articulated section 35, air bag 46 launches to expand shown in Fig. 1,4 long and two-short dash line.
When this launches to expand, though as shown in figure 11, air bag 46 makes the center C 0 of left and right directions when expanding end depart from the center C 1 of the chaufeur MD left and right directions of taking a seat, but because the gas communication hole 55 of frenulum 54 is configured in the center C 1 of chaufeur MD left and right directions, even so about two knee KL, KR be positioned at front side, air bag 46 during near expansion can prevent that also gas communication hole 55 from causing stopping up, narrowing down because of the left knee KL of center C 0 side of close air bag 46 left and right directions among two knee KL, the KR.
Consequently, can make expands successfully flows to position 59 between the frenulum 54,53 at position directly over the frenulum 54 with gas G through gas communication hole 55, make the downstream portion 47 one side releasings of air bag 46 roll the folding of folding, one side is launched (with reference to the long and two-short dash line of Fig. 1) upward, thereby positive upper part 59 can be configured between narrow, the steering column cover 13 and knee KL, KR as vehicle body-side member.In addition, this positive upper part 59, owing in the expansion phase of air bag 46, also flowed into gas G, thereby the thickness increase, so also can guarantee buffering effect.Certainly; the left and right sides at frenulum 54; setting can make gas flow path LG, the LR that expands and flow upward with gas G; the ratio frenulum 54,53 of air bag 46 leans on the position of top by means of the expansion gas G that flows through these gas flow paths LG, LR; amplitude is widely launched to expand; in addition, the expansion of flowing through gas communication hole 55 also promotes the expansion of positive upper part 59 with gas G, thereby can protect two knee KLs, the KR approaching with it effectively.
In addition, if it is different with present embodiment, gas communication hole 55 disposes consistently with the center C 0 of air bag 46 left and right directions, departing from passenger that the center C 0 of this air bag left and right directions takes a seat can make opening 55 stop up because of the left knee KL near the side of center C 0, expand with gas G be difficult to enter this air bag frenulum directly over position 59, thereby be difficult to guarantee the buffering effect of the positive upper part 59 of frenulum 54.
Therefore, with the airbag for protecting knee 46 of present embodiment,, also can protect knee KL, the KR of chaufeur MD effectively even the center C 0 of air bag 46 left and right directions of the expansion that is through with departs from the center C 1 of the chaufeur MD left and right directions approaching with it.
In addition, in the present embodiment, the frenulum 54 that possesses gas communication hole 55 is configured in gas communication hole 55 at the center of left and right directions.Promptly, air bag 46 is in expansion phase, from the center C 1 with chaufeur MD left and right directions is benchmark, and near gas flow path LG, LR three places of two ends, left and right sides 54c, 54d that are configured in symmetrical locational gas communication hole 55 and frenulum 54 make to expand flows upward with gas G.Therefore, even in the expansion phase of air bag 46 chaufeur MD with about two knee KL, thereby KR is configured in and open the passenger side base fabric 50 contacted positions that the volume that rolls folding is removed folding air bag 46, about also can making two knee KL, KR apart from gas communication hole 55, about the distance of gas flow path LG, RG impartial, the pressure of can accepting more evenly to expand with gas G.Consequently air bag 46 can apply the pressure that expands with gas G more evenly to two knee KL, KR in expansion phase, finishes expansion.
In addition, as not considering above-mentioned this point, also can use the air bag 46A shown in Figure 12,13 such, the left end 54c side direction left of frenulum 54 is extended, be the symmetrical frenulum 54A of benchmark (with reference to Figure 14) with the center C 0 of air bag 46A left and right directions.In addition, make the gas communication hole 55 of this frenulum 54A inconsistent with the center C 0 of air bag 46A, consistent with center C 1 as the passenger's who takes a seat chaufeur MD left and right directions.
In addition, though show in the present embodiment the gas communication hole 55 that makes frenulum 54 from the center C 0 of air bag 46 left and right directions to right-hand skew, make the passenger's that takes a seat with conduct the consistent situation of center C 1 of chaufeur MD left and right directions, if but the center C 1 of passenger's left and right directions of taking a seat is offset to left from the center C 0 of air bag left and right directions, certainly, the gas communication hole will be offset to left from the center C 0 of air bag left and right directions.
In addition, in the present embodiment, be provided with 2 frenulums 53,54 along the vertical direction, the frenulum 54 of the lower end side when expanding end to being arranged on is provided with gas communication hole 55.Therefore, the size of the thickness when air bag main body 49 has been limited the expansion end by 2 frenulums 53,54 is kept tabular when expanding end effectively.In addition, when air bag 46 is made such structure, the frenulum 54 of the lower end 46b side (upstream portion 48 sides) when expanding end to being arranged on is provided with gas communication hole 55, can make expand with gas through gas communication hole 55 successfully directly over frenulum 54 position flow, position is configured between narrow steering column cover 13 and the knee K directly over making this, more can guarantee the buffering effect at this position.Certainly, also can make the structure that the frenulum 53 that is arranged on upper end 46a side also is provided with the gas communication hole.
In addition, in the present embodiment, by an end being stitched to passenger side base fabric 50 sides or car body side base fabric 51 sides, 2 cloth 57A, 57B that the other end is sewed up mutually constitute each frenulum 53,54.And the part to the cloth 57B that constitutes frenulum 54 excises the end of the side that sews up mutually is provided with the notch recesses 54a that constitutes gas communication hole 55.Therefore, the operation of when air bag 46 is made frenulum 53,54 being sewed up on each base fabric 50,51 is easy, in the time of can reducing the worker of air bag 46 and cost.
In addition, in the present embodiment, be provided with switch-in part 56 at the inside circumference 54b of the notch recesses 54a of frenulum 54, when expansion along with air bag 46, when pulling force works to frenulum 54, in this inside circumference 54b side, near the position of the stress concentration front end 56a of the switch-in part 56 of frenulum 54.In addition, as shown in Figure 9, at the position 61 that the cloth 57B of frenulum 54 sews up mutually, though the crossing position P of the line that maximum masterpiece is used for extending with action direction from the front end 56a of switch-in part 56 along pulling force (the roughly line that extends orthogonally with suture site 61), but because the front end 56a of switch-in part 56 is configured in the private side from recess 54a frenulum 54 far away than the end 61a of suture site 61, so maximum power 61 is applied to the position in the inner part than end 61a in the suture site.Promptly, at pulling force frenulum 54 is done the time spent, can reduce to be applied near the power of suture site 61 end 61a, can reduce stress concentration near 58 effects of the sewing thread the end 61a of suture site 61, though thereby have the recess 54a that forms gas communication hole 55, also can improve the mutual suture strength of cloth 57B, the 57B of frenulum 54.
In addition, in the air bag 46 of present embodiment, because the parallel HS of car body side base fabric 51 is set parallelly with the upper limb 49a that at air bag 46 left and right directions when finishing of expanding is linearity, so being roughly rectangular car body side base fabric 51 is difficult to be distorted and tilt such distortion, on the contrary, being roughly rectangular passenger side base fabric 50 makes warp VS or parallel HS intersect with 45 ° angle of cut θ and upper limb 49a, woven design with respect to base fabric 51, as wrong path line direction, the neighboring of base fabric 51 is not stretched with exerting an influence.Be fixed end with lower end 46b side consequently at airbag for protecting knee 46; when being free end expansion expansion with upper end 46a side; the upper limb 49a side of passenger side base fabric 50 and car body side base fabric 51 can be non-warping and be roughly launched to expand along left and right directions obliquely, can be non-warping from top to the bottom of the air bag 46 that links to each other with upper limb 49a side and obliquely along with upper limb 49a side expansion expansion.
Therefore, with the airbag for protecting knee 46 of present embodiment, can suppress useless distortion and inclination and finish expansion.
In the present embodiment, make the warp VS of car body side base fabric 51 or parallel VH and the air bag 46 when finishing of expanding to become the upper limb 49a of linearity at left and right directions parallel, otherwise but also can, passenger side base fabric 50 is set at the parallel sides base fabric, make the warp VS of passenger side base fabric 50 or parallel HS and the air bag when finishing of expanding to become the upper limb 49a of linearity at left and right directions parallel, and can make the warp VS of car body side base fabric 51 or parallel HS intersect 45 ° with upper limb 49a, make car body side base fabric 51 become intersection side base fabric, even like this, this air bag also can suppress useless distortion and inclination and finish expansion.
But, in the present embodiment, with make warp VS or parallel HS with 45 ° angle of cut θ and upper limb 49a roughly crossing intersect the side base fabric as passenger side base fabric 50.Therefore, in the crossing mode in wrong path line direction and its roughly rectangular each limit warp VS and parallel HS are set for intersecting the passenger side base fabric 50 of side base fabric, thereby stretch easily, on the contrary, car body side base fabric 51 is provided with warp VS and parallel HS in the mode of roughly rectangular each limit almost parallel with it, thereby is difficult to stretch.Promptly, when air bag 46 launches to expand, because car body side base fabric 51 does not stretch, and passenger side base fabric 50 stretches, so the passenger side base fabric 50 of air bag 46 is the state that more expands than car body side base fabric 51, make car body side base fabric 51 easily near steering column cover 13 as vehicle body-side member, inhibition is useless outstanding to the knee K of passenger MD side, be easy to make its back 13a to launch upward to expand along vehicle body-side member 13, even the knee K of passenger MD and the gap between the vehicle body-side member 13 in the place ahead of this knee K are narrow and small, also can dispose to such an extent that make the air bag 46 that launches to expand enter this gap easily.
By the way, passenger side base fabric 50 is being set at the parallel sides base fabric, is making the warp VS of passenger side base fabric 50 or parallel HS and be the upper limb 49a almost parallel of linearity at air bag 46 left and right directions that expand when finishing; Car body side base fabric 51 is set at intersection side base fabric, make the warp VS of car body side base fabric 51 or parallel HS with under the situation that roughly 45 ° angle of cut θ and upper limb 49a intersect, passenger side base fabric 50 sides that are made of a fabric except that strengthening cloth 52B are difficult to stretch, and can easily prevent the splitting of suture site of the sewing thread 58 of left and right edges 46c, 46d side.
In addition, though the airbag for protecting knee 46 that chaufeur is used is illustrated in the present embodiment, natural, the present invention also can use the airbag for protecting knee that copilot's seat is used.
Claims (8)
1. airbag for protecting knee,
Be accommodated in the passenger's who takes a seat knee front side with being folded, can expand and launch and protection passenger's knee, and possess following structure,
Air bag possesses: the passenger's side wall portion when having the expansion end and the air bag main body of car body side wall portion; With the frenulum that is arranged in this air bag main body,
Described air bag main body constitutes as follows, and the lower end side when promptly finishing with expansion is used the downstream portion of gas as the upstream portion of the expansion that flows into gas with upper end side as expanding,
Described frenulum constitutes as follows, is about to described passenger's side wall portion and is connected with described car body side wall portion, and it is roughly tabular that the described air bag main body that expands when finishing is kept, and becomes the band shape along left and right directions when described air bag main body expands end,
Described frenulum is provided with the gas flow path that expansion is flowed upward with gas respectively between the inner peripheral surface of two ends, the left and right sides and described air bag main body, and near the middle part of left and right directions, possesses the gas communication hole that expansion is flowed upward with gas,
Described frenulum is provided with as follows, that is, the center of the described air bag left and right directions when described gas communication hole being departed from expand to finish is configured in the center of passenger's left and right directions of taking a seat.
2. airbag for protecting knee as claimed in claim 1,
The frenulum that possesses described gas communication hole is provided with described gas communication hole at the center of left and right directions.
3. airbag for protecting knee as claimed in claim 1,
Described frenulum is by a distolateral described passenger's side wall portion or the described car body side wall portion of being stitched to, and another distolateral 2 clothes formations that sew up mutually,
Each cloth that constitutes described frenulum possesses a part that will sew up the end of side mutually and cuts, and constitutes the notch recesses in described gas communication hole.
4. airbag for protecting knee as claimed in claim 3,
In the left and right sides of described notch recesses, with the suture site that the other end that constitutes the described cloth of described frenulum sews up mutually, form roughly wire respectively along left and right directions,
At the inside circumference of described notch recesses, form front-end configuration at switch-in part than the more close described frenulum private side in end of described each suture site.
5. airbag for protecting knee,
Be accommodated in the passenger's who takes a seat knee front side with being folded, can expand and launch and protection passenger's knee, and possess following structure,
Air bag possesses: the passenger's side wall portion when having the expansion end and the air bag main body of car body side wall portion; With the frenulum that is arranged in this air bag main body,
Described air bag main body constitutes as follows, and the lower end side when promptly finishing with expansion is used the downstream portion of gas as the upstream portion of the expansion that flows into gas with upper end side as expanding,
Described frenulum constitutes as follows, is about to described passenger's side wall portion and is connected with described car body side wall portion, and it is roughly tabular that the described air bag main body that expands when finishing is kept, and becomes the band shape along left and right directions when described air bag main body expands end,
Described frenulum is provided with a plurality of along the vertical direction,
Described frenulum is provided with the gas flow path that expansion is flowed upward with gas respectively between the side face of two ends, the left and right sides and described air bag main body,
At least be arranged on the frenulum of the lower end side when finishing that expands, near the middle part of left and right directions, possess the gas communication hole that expansion is flowed upward with gas,
The center of the described air bag left and right directions when finishing that expands is departed from described gas communication hole, is configured in the center of passenger's left and right directions of taking a seat.
6. airbag for protecting knee,
Can protect passenger's knee, be accommodated in the passenger's who takes a seat knee front side with being folded, and possess following structure,
Described air bag constitutes as follows, that is, make to be shaped as that roughly oblong is tabular when launch to expand finishing, and lower end side is fixed on the car body side, is that free end launches to expand with the upper end side,
The upper limb of described air bag when expand finishing is the roughly linearity along left and right directions, and the neighboring of the car body side base fabric of the passenger side base fabric of the passenger side that will be made of the fabric of roughly the same shape and car body side mutually combines and form,
Described passenger side base fabric and described car body side base fabric one of them the warp of fabric or parallel along roughly left and right directions setting, make the upper limb of the air bag when it roughly finishes along launching to expand,
Described passenger side base fabric and described car body side the base fabric wherein warp of another fabric or parallel are provided with 45 ° the upper limb of the angle of cut and the air bag when finishing that launches to expand roughly crossingly.
7. airbag for protecting knee as claimed in claim 6 is characterized in that:
The base fabric that intersects with roughly 45 ° the angle of cut and upper limb with warp or parallel is as described passenger side base fabric.
8. airbag for protecting knee as claimed in claim 6 is characterized in that:
The base fabric that intersects with roughly 45 ° the angle of cut and upper limb with warp or parallel is as described car body side base fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101035038A CN100406310C (en) | 2004-12-29 | 2004-12-29 | Airbag for protecting knee |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101035038A CN100406310C (en) | 2004-12-29 | 2004-12-29 | Airbag for protecting knee |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1796188A true CN1796188A (en) | 2006-07-05 |
| CN100406310C CN100406310C (en) | 2008-07-30 |
Family
ID=36817565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004101035038A Expired - Fee Related CN100406310C (en) | 2004-12-29 | 2004-12-29 | Airbag for protecting knee |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100406310C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101743149A (en) * | 2007-07-11 | 2010-06-16 | 旭化成工程株式会社 | Curtain bag |
| CN106004766A (en) * | 2015-03-31 | 2016-10-12 | 丰田合成株式会社 | Knee-protecting airbag device |
| CN107444330A (en) * | 2016-05-12 | 2017-12-08 | 本田技研工业株式会社 | Occupant protection system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6715790B2 (en) * | 1994-05-23 | 2004-04-06 | Automotive Technologies International, Inc. | Side curtain air bag |
| US5378019A (en) * | 1993-03-11 | 1995-01-03 | Morton International, Inc. | Controlled deployment driver's side air bag |
| US5692777A (en) * | 1995-04-27 | 1997-12-02 | Minnesota Mining And Manufacturing Company | Low permeability inflatable restraint fabric |
| US7055858B2 (en) * | 2002-04-01 | 2006-06-06 | Toyoda Gosei Co., Ltd. | Airbag device |
| JP3948332B2 (en) * | 2002-04-15 | 2007-07-25 | タカタ株式会社 | Crew protection device |
-
2004
- 2004-12-29 CN CNB2004101035038A patent/CN100406310C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101743149A (en) * | 2007-07-11 | 2010-06-16 | 旭化成工程株式会社 | Curtain bag |
| US8276938B2 (en) | 2007-07-11 | 2012-10-02 | Asahi Kasei Engineering Corporation | Curtain bag |
| CN101743149B (en) * | 2007-07-11 | 2015-05-06 | 旭化成工程株式会社 | Curtain bag |
| CN106004766A (en) * | 2015-03-31 | 2016-10-12 | 丰田合成株式会社 | Knee-protecting airbag device |
| CN106004766B (en) * | 2015-03-31 | 2019-03-22 | 丰田合成株式会社 | Air bag device is used in knee protection |
| CN107444330A (en) * | 2016-05-12 | 2017-12-08 | 本田技研工业株式会社 | Occupant protection system |
| CN107444330B (en) * | 2016-05-12 | 2019-08-30 | 本田技研工业株式会社 | Occupant protection system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100406310C (en) | 2008-07-30 |
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Granted publication date: 20080730 Termination date: 20201229 |