CN1814477A - Air-bag device for protecting kneel - Google Patents
Air-bag device for protecting kneel Download PDFInfo
- Publication number
- CN1814477A CN1814477A CNA2005100072335A CN200510007233A CN1814477A CN 1814477 A CN1814477 A CN 1814477A CN A2005100072335 A CNA2005100072335 A CN A2005100072335A CN 200510007233 A CN200510007233 A CN 200510007233A CN 1814477 A CN1814477 A CN 1814477A
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- aforementioned
- air bag
- charging blower
- shell
- inserting hole
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Abstract
The invention provides an air cell equipment protecting knees which making the exercise of plugging inflator in air cell easy and reducing man-hour and cost. The air cell equipment protecting knees possess two-double air cell44accepted in air cell, inflator providing gas for expanding air cell and approximately box body, the crust accepting air cell44and inflator. Air cell is provided with jack having ability of standing out the end of main body of inflator47and the fixing hole having ability of standing out the fixing bolts 49. The circumference of jack of the air cell is provided with sew connected to the jack. When the air cell expands, it could be accepted in the crust in manner of cling to the inner circle surface of the crust.
Description
Technical field
The present invention relates to a kind of air bag that expansion is flowed into gas and launch to expand and to protect the airbag device for protecting knee of the passenger's knee of taking one's seat.
Background technology
It is existing that to be used to protect the structure of the airbag device for protecting knee of passenger's knee be with the airbag fold of built-in charging blower, to make it accommodate (for example with reference to patent documentation 1) in the shell.Charging blower possesses main body and hold-down bolt, and main body can spray to expand uses gas, and hold-down bolt outstanding with the axial approximate vertical of main body is used for charging blower is fixed on shell.And in existing airbag device for protecting knee, form such structure: the end that is built in the charging blower main body in the air bag is by being formed at the inserting hole of air bag, and is outstanding from shell, is connected with the adaptor union of connecting wire.
[patent documentation 1] spy opens the 2003-205816 patent gazette
Summary of the invention
Yet, in existing airbag device for protecting knee,, set for the oad of charging blower main body the internal diameter size that is formed at the inserting hole in the air bag roughly the same from guaranteeing the viewpoint of leak tightness.Like this, just be difficult to charging blower is inserted in the air bag from inserting hole, therefore, on air bag, be provided with dividually and can be easy to charging blower is inserted peristome in the air bag with inserting hole.Its result after the operation in charging blower inserts air bag is finished, also needs this peristome is sewed up the operation of closing, when having increased the worker of air bag.
The present invention proposes for addressing the above problem, and purpose provides the operation that charging blower inserts air bag carries out easily, and can reduce worker the time and the airbag device for protecting knee of cost-cutting.
Airbag device for protecting knee of the present invention is arranged on the place ahead of passenger's knee of taking one's seat; possess air bag, charging blower and shell; air bag is folded; charging blower is contained in the air bag; provide expansion gas to air bag; shell forms the roughly box-shaped to the vehicle rear-side opening, and air bag and charging blower are accommodated.
Charging blower possesses:
Main body, it can spray to expand uses gas; And
Hold-down bolt, it simultaneously, is fixed on charging blower on the shell with outstanding with the mode of the axial approximate vertical of main body,
Air bag possesses the outstanding inserting hole of body end that can make charging blower, and can make the outstanding mounting hole of hold-down bolt, simultaneously,
Make from the outstanding charging blower main body of inserting hole and give prominence to from shell, and, will be fixed on the shell from the hold-down bolt of the outstanding charging blower of mounting hole, thereby air bag and charging blower together are fixed on the shell,
It is characterized in that: the inserting hole periphery of air bag is provided with the slit that is communicated with inserting hole, when airbag deployment expands, with can be with the mode of the inner peripheral surface butt of shell and be housed in the shell.
In airbag device for protecting knee of the present invention, slit is communicated with at the inserting hole that forms on the air bag.Therefore, when operation in the air bag is gone in the machine transplanting of rice that puts on the air, open, utilize inserting hole and slit, just can at an easy rate charging blower be accommodated in the air bag if slit is expanded.As a result, need not on air bag, to set the peristome of accommodating charging blower, also need not to sew up the operation of peristome as existing airbag device for protecting knee.Like this, just can reduce the manufacturing cost of airbag device for protecting knee, simultaneously, the operability of charging blower being inserted air bag also improves, in the time of can reducing the worker of airbag device for protecting knee.
Therefore, airbag device for protecting knee of the present invention carries out charging blower is inserted the operation of air bag easily, in the time of can reducing worker and cost-cutting.
And; airbag device for protecting knee of the present invention, under the state that makes airbag storage in the shell, the slit that is equipped on the inserting hole periphery is closed; simultaneously, the position of this inserting hole periphery can be accommodated with the inner peripheral surface butt of shell when airbag deployment expands.Therefore, when airbag deployment expanded, the inner peripheral surface butt of slit and shell and not opening can limit from the expansion of charging blower ejection and leak from slit with gas, thereby gas leaks from air bag when can confined expansion being over.
In addition, the preferred such structure of the airbag device for protecting knee of said structure promptly sets the direction from inserting hole lateral end side of slit, makes when airbag deployment expands, and slit is roughly along the draw direction of the air bag base fabric of inserting hole periphery.
If airbag device for protecting knee is made above-mentioned structure; when even airbag deployment expands; the base fabric of inserting hole periphery is stretched; because slit is to be provided with from the direction of inserting hole lateral end side; make it roughly along the draw direction of base fabric; so when airbag deployment expanded, it was open to do one's utmost to limit slit.Leak from slit with gas thereby can further limit from the expansion of charging blower ejection.
Description of drawings
Fig. 1 is the vehicle fore-and-aft direction summary longitudinal sectional view of running condition of the airbag device for protecting knee of expression an embodiment of the invention.
Fig. 2 is that the vehicle fore-and-aft direction summary of airbag device for protecting knee amplifies longitdinal cross-section diagram.
Fig. 3 is the general profile chart at the III-III position of Fig. 2.
Fig. 4 is from the outline elevation of the running condition of vehicle rear-side, expression airbag device for protecting knee.
Fig. 5 is the back view of the air bag that uses in the embodiment.
Fig. 6 is the summary amplification view at the VI-VI position of Fig. 5.
Fig. 7 is the skeleton diagram of the airbag fold of expression embodiment.
The specific embodiment
Below, with reference to the accompanying drawings, an embodiment of the invention are described.Shown in Fig. 1,4, the vehicle front side that the airbag device for protecting knee S of present embodiment is arranged on chaufeur MD is the below of Steering gear 9, with the knee K (KL, KR) of protection as passenger's chaufeur MD.
About this specification sheets, about and before and after corresponding vehicle when being loaded into airbag device for protecting knee S on the vehicle about, about and front and back.
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 sets for the Steering gear main body 10 that covers bearing circle 8 belows.Steering gear main body 10 possesses main shaft 11 and covers main shaft 11 steering-column jacket 12 on every side.
Airbag device for protecting knee S possesses the air bag 44 that is folded, provide to air bag 44 and expand with the charging blower 37 of gas, accommodate the air bag 44 that is folded and 37 whiles of the charging blower airbag cover 26 in the vehicle rear-side of the shell 17 of vehicle rear-side opening and covering shell 17 split sheds.
As Fig. 2～shown in Figure 4, shell 17 is made by sheet metal, is arranged on the lower side of Steering gear 9, is made of the box-type main part 18 and the panel part 23 of extending laterally from the rear end of main part 18.Main part 18 possesses the barrel-contoured surrounding wall portion 19 of four ribs roughly and stops up the bottom wall portion 21 of the vehicle front side of surrounding wall portion 19, is provided with roughly rectangular opening 18a in vehicle rear-side simultaneously.On the outside face side of the mutual opposed wall 19a of portion, 19b on surrounding wall portion 19 above-below directions, set a plurality of engaging pawls 20 respectively, these engaging pawls 20 are used for the connecting wall portion 29,30 up and down that the back of airbag cover 26 will be addressed is assembled into shell 17.This engaging pawl 20 is integral with panel part 23 in embodiment, forms with main part 18 splits.Each engages pawl 20, and the cross section becomes roughly zigzag shape, inserts the 29a of connecting hole portion, the 30a of the connecting wall portion 29,30 of airbag cover 26, can with the peripheral snap of the 29a of connecting hole portion, 30a.
On the 19c of wall portion of the side of surrounding wall portion 19, the inserting hole 19d (with reference to Fig. 3) that the main body 38 that formation can make the back of charging blower 37 address is passed.In addition, on bottom wall portion 21, form two inserting hole 21a, be used to make the hold-down bolt 39c of charging blower 37 to pass.
Upper side wall portion 29, A lower side wall portion 30, left side wall portion 31 and right side wall portions 32 respectively with the outer circumferential side adjacency of the surrounding wall portion 19 of housing main body portion 18, be configured to vehicle front side it outstanding.In embodiment, will be equipped near the upper side wall portion 29 the upper wall portions 19a of surrounding wall portion 19 and be equipped near the lower wall portion 19b A lower side wall portion 30 as with airbag cover 26 and shell 17 bonded assembly connecting wall portions.On upside A lower side wall portion 29,30, form a plurality of connecting hole 29a of portion, 30a respectively, be used to make 20 engagings of engaging pawl.
The structure of charging blower 37 shown in Fig. 2,3, forms the axial cylindrical shape that sets along the left and right directions of vehicle, possesses roughly columned main body 38 and diffuser 39.One distolateral in main body 38 is equipped with a plurality of gas vent 38a.And, in the other end 38b of main body 38 side, be connected with the adaptor union 41 of actuating signal input with lead 42 wiring.Diffuser 39 possess can main body covered 38 sheet metal system roughly cylindraceous keep the tube 39a of portion and a plurality of (the embodiment being 2) hold-down bolt 39c from keeping the tube 39a of portion to give prominence to.Keep tube portion 39 to form such structure, promptly offer a plurality of gas flow export 39b on the face of the vehicle rear-side of the maintenance tube 39a of portion under loading state of vehicle, described gas flow export 39b can make from the expansion of the gas vent 38a ejection of main body 38 and flow out with gas.
And, in this charging blower 37, the air bag actuating circuit that is loaded into vehicle when detecting positive the collision, the not shown airbag apparatus in being loaded into bearing circle 8, through lead 42, the input action signal.
At the right border position (being the left border position among Fig. 5) of the installation portion 46 of vehicle body side wall portion 52 lower side, formation can be passed the inserting hole that is split into circular 47 of the main body 38 of charging blower 37.The internal diameter size of this inserting hole 47 is set at the outside dimension of charging blower 38 roughly the same.And, slit 48 is set on the periphery of inserting hole 47, it is communicated with inserting hole 47.Set the direction from inserting hole 47 lateral end 48a sides of slit 48, make when air bag 44 launches to expand, slit 48 is roughly along the draw direction of the base fabric of the air bag 44 of inserting hole 47 peripheries, in embodiment, along the left and right directions configuration, make the outer edge side of end 48a side airbag 44 give prominence to (with reference to Fig. 5).Slit 48 is set to such length dimension, promptly under the enlarged state shown in the long and two-short dash line of Fig. 5, can make charging blower 37 and each hold-down bolt 39c thereof can both pass inserting hole 47 and slit 48.And as shown in Figure 3, the position of inserting hole 47 peripheries at air bag 44 when the 18 invagination overlappings of shell main part are held, when perhaps air bag 44 expands, to be accommodated in the housing main body portion 18 with the mode of the inner peripheral surface butt of housing main body portion 18.
At the position of the installation portion 46 of vehicle body side wall portion 52 lower side, formation can be passed two mounting holes 49,49 of the hold-down bolt 39c of charging blower 37.
The airbag device for protecting knee S that introduces embodiment below carries out cargo-carring situation to vehicle.Charging blower 37 is housed in the air bag 44.Specifically, by opening slit 48, passing inserting hole 47, charging blower 37 is inserted in the air bag installation portion 4 from gas vent 38a side.And, make hold-down bolt 39c outstanding from each mounting hole 49, make the end 38b of charging blower main body 38 outstanding, thereby charging blower 37 is housed in the air bag 44 from inserting hole 47.Carried out charging blower 37 accommodate operation after, the slit 48 around the inserting hole 47 becomes pent state.
Then, air bag 44 is folding, specifically, shown in Fig. 7 A, at state passenger's side wall portion 51 and vehicle body side wall portion 52 is overlapping and that flatten, with about two edge 44a, 44b fold to from passenger's side wall portion 51 sides.Then, shown in B, the C of Fig. 7, the upper limb 44c side of air bag 44 is reeled in vehicle body side wall portion 52 sides, roll folding along the left and right directions folding line, shown in Fig. 7 D, with roll position, folding part 57 about two edge 57a, 57b folding in passenger's side wall portion 51 sides, thereby finish the folding of air bag 44, to accommodate housing main body portion 18.Then, utilize prevent the folding usefulness of scattering can open circuited not shown encapsulating material, air bag is wrapped.In such cases, outstanding from the end 38b of the hold-down bolt 39c of the outstanding charging blower 37 of mounting hole 49 and inserting hole 47 and main body 38 from encapsulating material.
Then, make each hold-down bolt 39c of charging blower 37 outstanding, tighten, simultaneously, make the end 38b of charging blower main body 38 outstanding, charging blower 37 and the air bag 44 that is folded are together accommodated in the housing main body portion 18 from inserting hole 19d with nut 40 from inserting hole 21a.
Then, airbag cover 26 is installed on the shell 17, specifically, make upper side wall portion 29 pass the inserting hole 23a of panel part 23, with airbag cover 26 to shell 17 side shiftings, each 29a of connecting hole portion, 30a with each engaging pawl 20 insertion upside, A lower side wall portion 29,30 block each 29a of connecting hole portion, 30a periphery, just airbag cover 26 can be installed on the shell 17.
Then, utilize carriage 4,5,6,7 that each connecting portion 24 of shell 17 is installed and fixed vehicle body 1 side, simultaneously, the adaptor union 41 of connecting wire 42 is connected with charging blower main body 38.Then, if wainscot 14 or lower cover 15 (with reference to Fig. 1,2) are installed, just airbag apparatus S can be loaded into vehicle.
After airbag apparatus S is loaded into vehicle,, expand with gas, expand with the gas flow export 39b of gas, in the inflow air bag 44 through diffuser 39 just from the gas vent 38a ejection of charging blower 37 if actuating signal is input to charging blower main body 38 by lead 42.Then, air bag 44 expands, and not shown encapsulating material is disconnected, and the door portion 35 of extruding gasbag lid 26 makes to disconnect reservations 33 disconnections.Door portion 35 is a centre of gration with articulated section 34, opens up and down, and air bag 44 launches to expand shown in Fig. 1,4 long and two-short dash line.
Among the airbag apparatus S of embodiment, the inserting hole 47 that forms on the installation portion 46 of air bag 44 is communicated with slit 48 on periphery.Therefore, when carrying out the operation that charging blower 37 is inserted in the air bag 44, open, utilize inserting hole 47 and slit 48, just can at an easy rate charging blower 37 be accommodated in the air bag 44 if slit 48 is expanded.As a result, need not as existing airbag device for protecting knee, configuration is used so that charging blower is accommodated the peristome in the air bag, and does not also need to sew up the operation of peristome.Can reduce the manufacturing cost of airbag device for protecting knee S like this, simultaneously that charging blower 37 is good to the operability that air bag 44 inserts, thereby also can reduce the worker of airbag device for protecting knee S the time.
Therefore, the airbag device for protecting knee S of embodiment, charging blower 37 carries out easily to the operation that air bag 44 inserts, in the time of can reducing worker and cost-cutting.
Airbag device for protecting knee S of the present invention; accommodate under the state of shell 17 making air bag 44; the slit 48 that is equipped on inserting hole 47 peripheries is closed; simultaneously, the position 46a of these inserting hole 47 peripheries can be accommodated (with reference to Fig. 3) with the inner peripheral surface butt of the surrounding wall portion 19 of housing main body portion 18 when air bag 44 launches to expand.Therefore, when air bag 44 launches to expand, slit 48 is not opened with the inner peripheral surface butt of the surrounding wall portion 19 of housing main body portion 18, can limit from the expansion of charging blower 37 ejections to leak from slit 48 with gas, thereby gas leaks from air bag 44 when can confined expansion being over.
In the airbag apparatus S of embodiment, set the direction from inserting hole 47 lateral end 48a sides of slit 48, when making airbag deployment expand, slit 48 is roughly along the draw direction of air bag 44 base fabrics of the position 46a that constitutes inserting hole 47 peripheries.That is to say, in the airbag apparatus S of embodiment, even the position 46a of inserting hole 47 peripheries was stretched when air bag 44 launched to expand, because the direction from inserting hole 47 lateral end 48a sides of slit 48 is set, make it roughly along the draw direction that constitutes this position 46a base fabric, so when air bag 44 launched to expand, it was open to do one's utmost to limit slit 48.Leak from slit 48 with gas thereby can further limit from the expansion of charging blower 37 ejections.Certainly, if consider this respect, also slit can be configured to intersect with the draw direction of air bag 44 base fabrics of the position 46a that constitutes inserting hole 47 peripheries.
Present embodiment is being provided in Steering gear 9 belows, being that example describes in order to the airbag device for protecting knee S of protection chaufeur MD knee, yet the present invention also can be applied to be disposed in order to protect the passenger's knee that is sitting in front passenger's seat the airbag device for protecting knee of front passenger's seat.
Claims (2)
1. airbag device for protecting knee,
Be arranged on the place ahead of passenger's knee of taking one's seat,
This airbag device for protecting knee possesses air bag, charging blower and shell, and air bag is folded, and charging blower is contained in this air bag; provide expansion gas to aforementioned air bag; shell forms the roughly box-shaped to the vehicle rear-side opening, accommodates aforementioned air bag and aforementioned charging blower
Aforementioned charging blower possesses:
Main body, it can spray to expand uses gas; And
Hold-down bolt, it simultaneously, is fixed on aforementioned charging blower on the aforementioned shell with outstanding with the mode of the axial approximate vertical of this main body,
Aforementioned air bag possesses the outstanding inserting hole of body end that can make aforementioned charging blower, and can make the outstanding mounting hole of aforementioned hold-down bolt, simultaneously,
Make from the outstanding aforementioned charging blower main body of inserting hole outstanding from aforementioned shell, and, to be fixed on the aforementioned shell from the hold-down bolt of the outstanding aforementioned charging blower of aforementioned mounting hole, thereby aforementioned air bag and aforementioned charging blower together are fixed on the aforementioned shell
It is characterized in that: the inserting hole periphery of aforementioned air bag is provided with the slit that is communicated with aforementioned inserting hole, when aforementioned airbag deployment expands, being housed in the aforementioned shell with the mode of the inner peripheral surface butt of aforementioned shell.
2. as the airbag device for protecting knee of claim 1 record; it is characterized in that: the direction that sets slit from aforementioned inserting hole lateral end side; make when aforementioned airbag deployment expands that aforementioned slots is roughly along the draw direction of the aforementioned air bag base fabric of aforementioned inserting hole periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100072335A CN100484807C (en) | 2005-02-05 | 2005-02-05 | Air-bag device for protecting kneel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100072335A CN100484807C (en) | 2005-02-05 | 2005-02-05 | Air-bag device for protecting kneel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1814477A true CN1814477A (en) | 2006-08-09 |
| CN100484807C CN100484807C (en) | 2009-05-06 |
Family
ID=36906880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100072335A Expired - Fee Related CN100484807C (en) | 2005-02-05 | 2005-02-05 | Air-bag device for protecting kneel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100484807C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103930314A (en) * | 2011-10-11 | 2014-07-16 | 奥托里夫Asp股份有限公司 | Knee airbag assemblies and related methods |
| CN102186702B (en) * | 2008-10-14 | 2015-09-09 | 奥托里夫Asp股份有限公司 | For the mounting bracket of tethers releasing mechanism |
| CN103930314B (en) * | 2011-10-11 | 2016-11-30 | 奥托里夫Asp股份有限公司 | Knee airbag device and related methods |
-
2005
- 2005-02-05 CN CNB2005100072335A patent/CN100484807C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102186702B (en) * | 2008-10-14 | 2015-09-09 | 奥托里夫Asp股份有限公司 | For the mounting bracket of tethers releasing mechanism |
| CN103930314A (en) * | 2011-10-11 | 2014-07-16 | 奥托里夫Asp股份有限公司 | Knee airbag assemblies and related methods |
| CN103930314B (en) * | 2011-10-11 | 2016-11-30 | 奥托里夫Asp股份有限公司 | Knee airbag device and related methods |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100484807C (en) | 2009-05-06 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20210205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |