CN100389032C - Safety air bag for knee of assistant driver and its automobile - Google Patents
Safety air bag for knee of assistant driver and its automobile Download PDFInfo
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- CN100389032C CN100389032C CNB2005100214853A CN200510021485A CN100389032C CN 100389032 C CN100389032 C CN 100389032C CN B2005100214853 A CNB2005100214853 A CN B2005100214853A CN 200510021485 A CN200510021485 A CN 200510021485A CN 100389032 C CN100389032 C CN 100389032C
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Abstract
The present invention discloses one kind of knee safety airbag for co-driver and the automobile therewith. The knee safety airbag includes an airbag, an air generator, a mantle and a casing for holding the folded air generator and airbag. The knee safety airbag with improved structure, folding mode and expanded shape may be set below the glove box. After being expanded, the knee safety airbag can cover the instrument desk basically to protect the knees and legs of the co-driver effectively.
Description
[technical field]
The present invention relates to a kind of air bag device and automobile of automobile.
[background technology]
In the prior art; safety air bag is as a kind of device of passive safety system, and occupant's injury has been widely used on the automobile in the time of effectively reducing collision; and no longer be confined to protection, but attempt from all angles pointedly, each position is protected occupant's head.Knee air bag just belongs to this type, and the knee air bag segmentation can be divided into chaufeur knee air bag and knee of assistant driver air bag, and as a kind of novel air bag, knee air bag focuses on front-seat chaufeur of protection and front passenger's seat occupant's knee and shank position.
The knee of assistant driver air bag comprises the airbag that is used to do time spent carrying buffering, the knee of assistant driver air bag module is covered in cover cap in the instrument desk rear panel, does the time spent and give the gas generator of airbag and connect support.Under normal circumstances, air bag module is fixed in air cell covering cap seal lid in the instrument desk wainscot, and when the collision of certain intensity took place, airbag deployment filled up the gap of shank and instrument desk, and protection knee, shank are avoided the dress bump and injured.
Chinese patent publication number CN95211717.7, open day on October 16th, 1996, the name of utility model is called＜the knee cushion that drives by air bag application case, provided a kind of knee of assistant driver air bag, but this design has certain degree of difficulty in application, mainly being that balloon positions is difficult arranges, have influence on the position of glove box, because the dead ahead of knee just in time is the position of glove box generally, simultaneously in actual accidents, because personnel's height, stature is educated certain difference, sitting posture also has difference, and therefore this in these cases copilot air bag does not play due effect.
And for example at Chinese patent publication number 03106112.5, open day on September 3rd, 2003, innovation and creation the name be called＜occupant leg protecting device application case, disclosed a kind of air bag of protecting at driver leg, but this technical scheme only focuses on that air bag is unfolded mode to be improved, to guarantee that airbag can be smooth, launch apace, and ignored design to the expansion shape of airbag, expansion shape does not design targetedly according to human engineering, it is opened the main along continuous straight runs in back two sides to about occupant's knee and launches to become one simply rectangular-shaped, mainly act on knee, launch back and knee and be to contact, can not control up and down direction in the expansion process and launch along shank, therefore can not be to whole shank, foot is comprehensively protected; And this design will guarantee that air cushion does not launch that to occupant's direction certain degree of difficulty is arranged, and like this air cushion moment of opening, can cause excessive shock to knee equally; In addition, this technical scheme has also been ignored the influence of the design of tear seam to airbag deployment speed, expansion direction, may cause actual development rate and expansion direction, with design objective gap is arranged.
[summary of the invention]
Purpose of the present invention is exactly in order to overcome above the deficiencies in the prior art part, provide a kind of safer effectively, protect more fully front passenger's seat safety air bag and automobile.
For achieving the above object, the present invention proposes a kind of safety air bag for knee of assistant driver, comprises airbag 2, gas generator 3, cover cap 4, reaches shell 5, and described gas generator 3 is assemblied in the described shell 5 after folding with airbag 2 assemblings; Described cover cap 4 covers on the described shell aperture; Described airbag comprises expansion anter back and one side towards the seat and is provided with described airbag and the rear panel of described gas generator bonded assembly airbag mouth; Described airbag and described gas generator bonded assembly airbag mouth are arranged at described airbag rear panel middle part on the lower side, and airbag anter lower-upper length is greater than the rear panel lower-upper length; Under deployed condition, described airbag is crescent, and one side is an outer gibbosity towards the seat, is inner concavity towards glove box lid one side.
Above-mentioned safety air bag for knee of assistant driver, described airbag also comprises drawstring, is connected between described airbag anter and the rear panel; When airbag launches,, after being launched, described airbag becomes the air cushion shape by the inflation thickness between described drawstring restriction airbag anter and the rear panel.Described drawstring effective length is 5～20cm, is preferably 8～15cm.
Above-mentioned safety air bag for knee of assistant driver, in the horizontal, the folding of described airbag both sides is Z-shaped, and in the vertical, described airbag rolls and is rolled into scroll.Preferably, the airbag top 11 that described airbag 2 is positioned at airbag mouth top is rolled to be rolled into to described gas generator direction on the airbag anter and is scroll, roll up on the volume of airbag top 11 formation the airbag bottom 12 that is positioned at airbag mouth below, and encase the volume that airbag top 11 forms.
Above-mentioned safety air bag for knee of assistant driver offers tear seam 6 on the described housing, tear seam is a ∩ shape, and under the installing condition its opening towards down.
Above-mentioned safety air bag for knee of assistant driver, the transverse width under described airbag 2 deployed conditions is 20～80cm, is preferably 40～60cm, more preferably 45～55cm; Longitudinal length is 30～90cm, preferred 50～70cm, more preferably 55～65cm.
The invention discloses a kind of automobile simultaneously, comprise glove box, safety air bag for knee of assistant driver, described safety air bag for knee of assistant driver is installed on described glove box bottom, described safety air bag for knee of assistant driver, comprise airbag 2, gas generator 3, cover cap 4, reach shell 5, described gas generator 3 is assemblied in the described shell 5 after folding with airbag 2 assemblings; Described cover cap 4 covers on the described shell aperture; Described airbag comprises and launches the back to the anter of seat one side and be provided with described airbag and the rear panel of described gas generator bonded assembly airbag mouth; Described cover cap 4 upper edges are leaned on mutually with the glove box lid lower edge, and described shell 5 upper walls lean on mutually with the glove box lower wall; Described airbag and described gas generator bonded assembly airbag mouth are arranged at described airbag rear panel middle part on the lower side, and airbag anter lower-upper length is greater than the rear panel lower-upper length; Under deployed condition, described airbag is crescent, and one side is an outer gibbosity towards the seat, is inner concavity towards glove box lid one side.
Above-mentioned automobile, described airbag also comprises drawstring, is connected between described airbag anter and the rear panel; When airbag launches,, after being launched, described airbag becomes the air cushion shape by the inflation thickness between described drawstring restriction airbag anter and the rear panel.Described drawstring effective length is 5～20cm, is preferably 8～15cm.In the horizontal, the folding of described airbag both sides is Z-shaped, and in the vertical, described airbag rolls and is rolled into scroll.Preferably, the airbag top 11 that described airbag 2 is positioned at airbag mouth top is rolled to be rolled into to described gas generator direction on the airbag anter and is scroll, roll up on the volume of airbag top 11 formation the airbag bottom 12 that is positioned at airbag mouth below, and encase the volume that airbag top 11 forms.Offer tear seam 6 on the described housing, tear seam is a ∩ shape, and under the installing condition its opening towards down.Transverse width under described airbag 2 deployed conditions is 20～80cm, is preferably 40～60cm, more preferably 45～55cm; Longitudinal length is 30～90cm, preferred 50～70cm, more preferably 55～65cm.
Owing to adopted above scheme, brought following beneficial effect:
By the structure of improvement air bag and the expansion shape of airbag; air bag module can be loaded under the glove box; do not influence the position of glove box; can cover the instrument desk part that may cause copilot occupant knee injuries when bumping substantially behind the airbag deployment simultaneously; the protection zone is big; safer; because air bag module is loaded on the below of glove box; airbag both direction expansion up and down during expansion; cover glove box and may be in when collision and the copilot driver leg zone that bumps on every side; enlarged the protection zone; make when bumping no matter personnel's age and height; the stature difference; the front passenger's seat occupant that sitting posture differs can both be effectively protected generally speaking; and protection domain expands to shank more than the whole tiptoe from knee; its expansion shape designs according to human engineering; can with whole shank full face contact, the airbag of releiving launches the shock pressure of moment, more safely protects occupant's knee and shank.
Adopt when airbag of the present invention is folding earlier and in the horizontal the airbag both sides are folded between the sheet of front and back in Z-shaped mode, it is folded to roll convolution at above-below direction again, the in-to-in resistance has improved the airbag development rate in the time of can reducing the airbag expansion, and development rate is fast faster to make airbag.Cover cap is torn the back tear portion and is torn downwards, does not influence airbag and upwards launches, and makes airbag can paste the inside face direction expansion up and down rapidly of instrument desk.
The present invention is designed to flat air cushion profile with airbag and can no longer continues to heave backward after washing the cover cap tear seam open, begin behind the certain thickness upwards to launch but heave to reach, well avoid going out cover cap and continue to go out backward direct compressing shank because of airbag, avoid because shank when being rebounded because the lever principle personnel that cause impact forward, on the contrary the occupant is caused bigger injury;
By drawstring the airbag anter is connected to come limited thickness with rear panel, and can is not spherical, not only can play the function of protection but also can reduce the airbag volume, the airbag inflation is launched rapidly.
[description of drawings]
Also the present invention is described in further detail in conjunction with the accompanying drawings below by specific embodiment.
Fig. 1: the static scheme drawing of car medial surface;
Fig. 2: the inflating expanded back of car medial surface airbag scheme drawing;
Fig. 3: positive static scheme drawing in the car;
Fig. 4: the inflating expanded back of front airbag scheme drawing in the car;
Fig. 5: the back scheme drawing is launched in airbag inflation side;
Fig. 6: airbag front schematic view;
Fig. 7: the laterally positive folding figure one of airbag;
Fig. 8: the laterally positive folding figure two of airbag;
Fig. 9: the laterally folded lateral side view of airbag;
Figure 10-Figure 13: airbag vertically rolls the folded process scheme drawing of convolution;
Figure 14-Figure 17: airbag vertically rolls the convolution closed assembly and joins the process scheme drawing in car;
Figure 18: the another kind of longitudinally folding mode scheme drawing of airbag.
[specific embodiment]
Automobile of the present invention adopts and the essentially identical structure of prior art, it is described that its structure please refer to " modern automobile block construction, principle and the circuit atlas " published the contemporary China audio ﹠ video press, automobile of the present invention is set up safety air bag for knee of assistant driver, safety air bag for knee of assistant driver is installed on the glove box bottom, safety air bag for knee of assistant driver, comprise airbag 2, gas generator 3, cover cap 4, reach shell 5, gas generator 3 is assemblied in the described shell 5 after folding with airbag 2 assemblings; Airbag comprises the anter that launches back and human body contact position and is provided with airbag and the rear panel of gas generator bonded assembly airbag mouth; Cover cap 4 upper edges are leaned on mutually with the glove box lid lower edge, and shell 5 upper walls lean on mutually with the glove box lower wall.Below each example focus on the improvement part of the present invention to automobile, promptly the structural development of safety air bag for knee of assistant driver is discussed.
Embodiment one: as shown in Figure 1, for knee of assistant driver air bag static scheme drawing in vehicle body, also be the installation site scheme drawing.The knee of assistant driver air bag comprises airbag 2, producer 3, cover cap 4, shell 5; Air bag be installed on glove box below, glove box lid 9 lower edges are leaned on mutually with cover cap 4 upper edges of air bag, and surface both seamlessly transits by the trend of the wainscot of instrument desk 10, because wainscot is the bevelled face, therefore the back cover cap 4 of air bag installation also is a bevelled, and the opening direction of air bag is oblique following.Producer 3 is assemblied in the air bag shell 5 after folding with airbag 2 assemblings, and shell 5 upper walls lean on mutually with the glove box lower wall.From the front, as Fig. 3, air bag 1 is installed under the glove box, utilized under the original glove box, the remaining space in the wainscot, do not influence the designed size and the position of glove box, it is the part of the wainscot of instrument desk 10 that the cover cap 4 of air bag is installed the back, excessively smoothly, do not influence the outward appearance of wainscot.The center, installation site of air bag is relative with the seat center, and also promptly the center of two knees conforms to substantially with the center of air bag installation site.Tear seam 6 concavities on the cover cap 4 of air bag, recess is downward, and promptly tear seam 6 on top and the left and right sides launches the back like this and torn the cover cap 15 of part and move downward, can not stop that airbag upwards launches, the inside face that makes airbag can paste instrument desk 10 upwards launches.
The outside drawing that Fig. 5 launches for the airbag side, drawstring 7 and drawstring 8 are in airbag, two ends are individually fixed in cooresponding position on the anter of airbag 2 and the rear panel, and in the top that is positioned at producer 3, form airbag top 11, with airbag bottom 12, the length of drawstring 7 and drawstring 8 has determined the thickness after airbag launches, the drawstring effective length is 5～20cm, be preferably 8～15cm, drawstring has certain width, shown in Fig. 6 airbag 2 front elevations, there is certain distance on both sides 7a, the 7b that drawstring 7 is horizontal and the both sides of airbag 2, and same drawstring 8 is the border with 8a, 8b laterally.Such drawstring can guarantee that airbag launches the back and forms air cushion, rather than spherical, not only can reach the function of protection but also can reduce the airbag volume, and the airbag inflation is launched rapidly.Drawstring 7,8 can be for view picture, also can be the drawstring group of being made up of a plurality of little drawstrings, promptly forms drawstring 7 or drawstring 8 by a plurality of little drawstring groups separate and space.Airbag top 11 is 7,8 two drawstrings of drawstring incessantly, can select 1 drawstring or 3 drawstrings according to actual conditions, even more.Airbag bottom 12 also can be by according to circumstances adding drawstring, and these no longer exemplify in example again.Such drawstring design can guarantee that not only airbag can not surpass design-calculated thickness on thickness direction, more guaranteed can not continue to launch after airbag 2 is opened to occupant's direction, but after going out cover cap 4, after occupant's direction is deployed into design thickness, because drawstring restriction, 2 ones of airbags can continue to open to occupant's direction, but both direction launches to expand up and down, cover the part that may bump with shank.
Fig. 7, Fig. 8 are that airbag 2 is at the method for folding that laterally reduces width.Airbag 2 need reduce the folding of width earlier when folding, the airbag part that airbag 2 both sides is surpassed air bag box 5 width is folded between the sheet of front and back in Z-shaped mode, form the figure of fold domain, the left side 13 before and after airbag 2 left sides are folded in Fig. 7 position in the sheet, Fig. 8 is the figure that forms the fold domain 13,14 of the right and left before and after airbag 2 left and right sides are all folded in two.Fig. 9 for airbag 2 left and right sides fold between airbag 2 front and back sheets after back view, the fold domain of the right and left is 13,14, two inside before and after being positioned at, folding like this back airbag 2 and producer length basically identical, and in the shell 5 of can packing into.
Need to reduce the folding of length behind laterally folded the finishing.As Figure 10 to Figure 13 is to roll the folded folding process scheme drawing of convolution in the vertical; Convolution is rolled as the figure cw in airbag 2 tops 11 build up scroll on the airbag anter, to stop to roll convolution when volume is centered close to directly over producer 3 centers folded when rolling, and airbag bottom 12 conter clockwises rolled up on the volume that forms in airbag top 11, and encased.After being folded in the airbag inflation like this, the power that the airbag expansion produces is mainly to the dead ahead, can tear the tear seam 6 of cover cap 4 rapidly.Figure 14 to Figure 17 is assemblied in shell 5 internal procedure scheme drawings for airbag 2 airbag in vehicle body vertically rolls the convolution poststack.
Embodiment two: as shown in figure 18, in this example, airbag rolls the folded another kind of embodiment of convolution in the vertical, and volume is rolled with conter clockwise and clockwise direction producer direction respectively in airbag top 11 and airbag bottom 12 airbags on rear panel, is folded to then in the air bag box.
Claims (10)
1. a safety air bag for knee of assistant driver comprises airbag (2), gas generator (3), cover cap (4), reaches shell (5), and described gas generator (3) is assemblied in the described shell (5) after folding with airbag (2) assembling; Described cover cap (4) covers on the described shell aperture; Described airbag comprises expansion anter back and one side towards the seat and is provided with described airbag and the rear panel of described gas generator bonded assembly airbag mouth; It is characterized in that: described airbag and described gas generator bonded assembly airbag mouth are arranged at described airbag rear panel middle part on the lower side, and airbag anter lower-upper length is greater than the rear panel lower-upper length; Under deployed condition, described airbag is crescent, and one side is an outer gibbosity towards the seat, is inner concavity towards glove box lid one side.
2. safety air bag for knee of assistant driver as claimed in claim 1 is characterized in that: described airbag also comprises drawstring, is connected between described airbag anter and the rear panel; When airbag launches,, after being launched, described airbag becomes the air cushion shape by the inflation thickness between described drawstring restriction airbag anter and the rear panel.
3. safety air bag for knee of assistant driver as claimed in claim 1 is characterized in that: in the horizontal, the folding of described airbag both sides is Z-shaped, and in the vertical, described airbag rolls and is rolled into scroll.
4. safety air bag for knee of assistant driver as claimed in claim 1 is characterized in that: offer tear seam (6) on the described housing, tear seam is a ∩ shape, and under the installing condition its opening towards down.
5. safety air bag for knee of assistant driver as claimed in claim 3, it is characterized in that: the airbag top (11) that described airbag (2) is positioned at airbag mouth top is rolled to be rolled into to described gas generator direction on the airbag anter and is scroll, roll up on the volume of airbag top (11) formation the airbag bottom (12) that is positioned at airbag mouth below, and encase the volume that airbag top (11) forms.
6. safety air bag for knee of assistant driver as claimed in claim 2 is characterized in that: described drawstring effective length is 5～20cm.
7. safety air bag for knee of assistant driver as claimed in claim 1 is characterized in that: the transverse width under described airbag (2) deployed condition is 20～80cm, and longitudinal length is 30～90cm.
8. safety air bag for knee of assistant driver as claimed in claim 7 is characterized in that: the transverse width under described airbag (2) deployed condition is 40～60cm, and longitudinal length is 50～70cm.
9. safety air bag for knee of assistant driver as claimed in claim 8 is characterized in that: the transverse width under described airbag (2) deployed condition is 45～55cm, and longitudinal length is 55～65cm.
10. automobile, comprise glove box, safety air bag for knee of assistant driver, described safety air bag for knee of assistant driver is installed on described glove box bottom, described safety air bag for knee of assistant driver comprises airbag (2), gas generator (3), cover cap (4), reaches shell (5), and described gas generator (3) is assemblied in the described shell (5) after folding with airbag (2) assembling; Described cover cap (4) covers on described shell (5) opening; Described airbag comprises and launches the back to the anter of seat one side and be provided with described airbag and the rear panel of described gas generator bonded assembly airbag mouth; It is characterized in that: described cover cap (4) upper edge is leaned on mutually with the glove box lid lower edge, and described shell (5) upper wall leans on mutually with the glove box lower wall; Described airbag and described gas generator bonded assembly airbag mouth are arranged at described airbag rear panel middle part on the lower side, and airbag anter lower-upper length is greater than the rear panel lower-upper length; Under deployed condition, described airbag is crescent, and one side is an outer gibbosity towards the seat, is inner concavity towards glove box lid one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100214853A CN100389032C (en) | 2005-08-11 | 2005-08-11 | Safety air bag for knee of assistant driver and its automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100214853A CN100389032C (en) | 2005-08-11 | 2005-08-11 | Safety air bag for knee of assistant driver and its automobile |
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| Publication Number | Publication Date |
|---|---|
| CN1911711A CN1911711A (en) | 2007-02-14 |
| CN100389032C true CN100389032C (en) | 2008-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100214853A Active CN100389032C (en) | 2005-08-11 | 2005-08-11 | Safety air bag for knee of assistant driver and its automobile |
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| CN (1) | CN100389032C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2353947B1 (en) * | 2008-10-29 | 2013-07-31 | Toyota Jidosha Kabushiki Kaisha | Knee airbag device for vehicle |
| CN103619658B (en) * | 2011-06-08 | 2016-02-10 | Trw汽车股份有限公司 | Comprise the vehicle occupant restraint system of comformability knee air bag and the method for the protection of automotive occupant |
| CN104859522B (en) * | 2015-05-19 | 2018-05-29 | 浙江双友物流器械股份有限公司 | A kind of thermal insulation air bag on van |
| KR20200094361A (en) * | 2019-01-30 | 2020-08-07 | 현대모비스 주식회사 | Knee air bag apparatus |
| DE102019208417A1 (en) | 2019-06-11 | 2020-12-17 | Audi Ag | Leg protection device for an occupant protection system of a vehicle |
| CN112606789B (en) * | 2020-12-17 | 2022-07-12 | 北京汽车股份有限公司 | Control method of knee and foot protection system of vehicle, knee and foot protection system and vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1439553A (en) * | 2002-02-18 | 2003-09-03 | 高田株式会社 | Leg protector for passenger |
| US20040262896A1 (en) * | 2003-05-22 | 2004-12-30 | Yoshio Mizuno | Knee-protecting airbag device |
-
2005
- 2005-08-11 CN CNB2005100214853A patent/CN100389032C/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1439553A (en) * | 2002-02-18 | 2003-09-03 | 高田株式会社 | Leg protector for passenger |
| US20040262896A1 (en) * | 2003-05-22 | 2004-12-30 | Yoshio Mizuno | Knee-protecting airbag device |
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| Publication number | Publication date |
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| CN1911711A (en) | 2007-02-14 |
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