CN107054275B - Main driving safety airbag assembly - Google Patents
Main driving safety airbag assembly Download PDFInfo
- Publication number
- CN107054275B CN107054275B CN201710079585.4A CN201710079585A CN107054275B CN 107054275 B CN107054275 B CN 107054275B CN 201710079585 A CN201710079585 A CN 201710079585A CN 107054275 B CN107054275 B CN 107054275B
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- annular
- generator
- locking
- base
- airbag assembly
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/203—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns
Abstract
The invention provides a main driving safety airbag assembly which is assembled and fixed on a steering wheel framework and comprises a generator base and a gas generator, wherein the gas generator is directly clamped and matched with the generator base to be fixed on the generator base, or a locking disc covering the gas generator is clamped and matched with the generator base to be fixed on the generator base. The main driving safety airbag assembly has the advantages of convenience in assembly, short working hours, light weight, low cost and the like.
Description
Technical Field
The invention relates to the field of automobile safety airbags, in particular to a main driving safety airbag assembly.
Background
The main driving safety airbag assembly mainly comprises a gas generator and a generator base, and the main driving safety airbag assembly has the functions of avoiding violent collision between a driver and an inner structure of an automobile when the automobile has a collision accident, and reducing the damage degree to the driver. The main driving airbag assembly plays an important role in protecting the safety of a driver as a standard configuration in an automobile safety system. Inside current main driving air bag assembly, gas generator adopts screw and nut complex mode to fix on the generator base usually, and the equipment is more complicated, must set up nut process and station of screwing moreover to influence the takt, man-hour is longer, is unfavorable for losing weight, and the cost is also than higher.
Disclosure of Invention
In view of the above-described deficiencies of the prior art, the present invention provides an improved primary driving airbag assembly having the advantages of convenient assembly, short man-hours, light weight, low cost, and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a main driving safety air bag assembly, its assembly is fixed in on the steering wheel skeleton, including generator base and gas generator, gas generator through direct with generator base joint cooperation is fixed on the generator base, perhaps cover through one gas generator's locking dish with generator base joint cooperation is fixed on the generator base.
Preferably, the generator base and the steering wheel framework are fixed through the U-shaped clamp springs and the clamping hooks which are in clamping fit in a one-to-one correspondence mode.
Further, the generator base comprises an annular base plate, and an annular vertical wall which extends circumferentially around the inner ring of the annular base plate and is matched with the flange of the gas generator in shape is arranged on the annular base plate.
Furthermore, when the generator base is directly clamped and matched with the gas generator, a plurality of convex clamping jaws extending inwards and radially are arranged on the inner surface of the annular vertical wall, and a plurality of axial inserting holes corresponding to the convex clamping jaws one to one are formed in a flange of the gas generator; and a cantilever type clamping hook is arranged on the annular bottom plate on the inner side of the annular vertical wall, and a clamping hook hole matched with the cantilever type clamping hook in a clamping way is arranged on the flange of the gas generator.
Preferably, the annular bottom plate is provided with an annular outer cover which extends circumferentially around the annular vertical wall.
Furthermore, when the generator base and the locking disc are in clamping fit, a plurality of locking clamping claws extending downwards are arranged on the outer edge of the locking disc, and a plurality of clamping claw holes in one-to-one corresponding clamping fit with the locking clamping claws are formed in the annular bottom plate of the generator base.
Furthermore, the inner side hole wall of the clamping claw hole is provided with a locking protrusion extending outwards in the radial direction, and the bottom end of the locking clamping claw is provided with a jack matched with the locking protrusion in a clamping mode.
Preferably, an anti-mistake protrusion extending upwards in the axial direction is arranged on the annular bottom plate on the inner side of the annular vertical wall, and anti-mistake holes matched with the anti-mistake protrusion are respectively arranged on the locking disc and the flange of the body generator.
Furthermore, a pawl which extends upwards from the outer side hole wall of the pawl hole and bends inwards is arranged on the annular bottom plate, and ratchets matched with the pawl are arranged on the outer edge of the locking pawl.
Furthermore, the bottom end of the locking claw is provided with a buckle which is turned outwards.
By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
according to the invention, the gas generator is directly clamped and fixed on the generator base, or is fixed on the generator base through the locking disc clamped with the generator base, so that a screw and a nut are not needed, the conventional nut screwing process can be omitted, the gas generator and the generator base can be simply and quickly connected and fixed, and the gas generator fixing effect is maintained, and meanwhile, the gas generator fixing device has the advantages of simplicity in assembly, simplicity in manufacturing, low cost and the like.
Drawings
FIG. 1 is a schematic view of the main drive airbag assembly of the present invention mounted to a steering wheel frame;
FIG. 2 is a schematic perspective view of a primary driver airbag assembly of the present invention;
FIG. 2A is a schematic structural view of the upper housing of FIG. 2;
FIG. 2B is a schematic structural diagram of the lower housing of FIG. 2;
FIG. 3 is an exploded view of a first embodiment of a primary drive airbag assembly of the present invention;
FIG. 4 is an exploded view of a second embodiment of a primary drive airbag assembly of the present invention;
FIG. 5 is an exploded view of a third embodiment of the primary drive airbag assembly of the present invention;
FIG. 6 is an enlarged, fragmentary top view of the main driving airbag assembly of FIG. 5.
Detailed Description
The following description of the preferred embodiments of the present invention, in conjunction with the drawings, will provide a better understanding of the function and features of the invention, wherein like structure in various embodiments is given like numerals and is differentiated by "'" and "". .
As shown in fig. 1 to 6, the main driving airbag assembly of the present invention is assembled and fixed to a steering wheel frame 3, and includes a gas generator 1, 1 'or 1 "and a generator base 2, 2' or 2" in an upper case 5 and a lower case 6 (see fig. 3 to 5). Wherein, the bottom surface of generator base 2, 2 'or 2 "is equipped with the trip 21 that two symmetries set up (trip 21 downwardly extending from the hole in the casing down), correspondingly, is equipped with two U type jump rings 31 on the steering wheel skeleton 3, and generator base 2, 2', 2" assembles on steering wheel skeleton 3 through the one-to-one correspondence joint cooperation of trip 21 and U type jump ring 31, simple structure, and is quick detachable.
Fig. 3 shows an embodiment of the airbag assembly according to the invention, in which, as shown in fig. 3, the generator base 2 comprises an annular base plate 22, which annular base plate 22 is provided with an annular standing wall 24 which is form-fitted to the flange of the gas generator 1, which annular standing wall 24 peripherally surrounds an annular housing 23. Wherein the annular standing wall 24 extends circumferentially around the inner ring of the annular base plate 22, i.e. the inner ring diameter of the annular base plate 22 is smaller than the diameter of the annular standing wall 24; meanwhile, a plurality of (three shown in fig. 3) protruding jaws 26 extending radially inward are uniformly arranged on the inner surface of the annular vertical wall 24, a plurality of (three shown in fig. 3) axial sockets 11 clamped with the protruding jaws 26 in a one-to-one correspondence are arranged on the flange of the gas generator 1 to realize an error-proofing function, and the protruding jaws 26 and the axial sockets 11 are matched in shape, for example, a triangle corresponds to a triangle, and a trapezoid corresponds to a trapezoid; in addition, a cantilever type clamping hook 27 is arranged on the annular bottom plate 22 on the inner side of the annular vertical wall 24, and an oblong clamping hook hole 12 matched with the cantilever type clamping hook 27 in a clamping way is arranged on the flange of the gas generator 1.
In the assembly of the present embodiment, the axial insertion opening 11 of the gas generator 1 is first aligned with the corresponding protruding claw 26 of the generator base 2, i.e. the gas generator 1 is correctly placed in the generator base 2; then the gas generator 1 is pressed in, at this moment, the hook-shaped extending part of the cantilever type clamping hook 27 on the generator base 2 is pressed out downwards, after the protruding clamping jaw 26 completely passes through the axial socket 11, the gas generator 1 is rotated in the axial direction (the axial direction is perpendicular to the direction of the annular bottom plate 22 of the generator base 2), when the hook-shaped extending part of the cantilever type clamping hook 27 reaches the clamping hook hole 12 on the gas generator 1, the cantilever type clamping hook 27 is elastically restored to the original shape due to the self flexural deformation characteristic, and the hook-shaped extending part automatically slides into the clamping hook hole 12, so that the gas generator 1 and the generator base 2 are locked. This embodiment provides a reliable and quick way of securing the gas generator to visually indicate whether the gas generator 1 is properly connected and locked.
Fig. 4 shows a second embodiment of the airbag assembly according to the invention, in which the generator base 2 likewise comprises an annular base plate 22', on which annular base plate 22' an annular standing wall 24' is likewise provided, which differs from the first embodiment in that the annular outer cover 23' of the first embodiment is omitted and in that the generator base 2' is not snap-fitted directly to the gas generator 1, but rather to a locking disk 4' which covers the gas generator 1 '. Specifically, in the present embodiment, an annular locking disc 4' is additionally provided, a plurality of (three shown in fig. 4) locking claws 41' extending downward are uniformly arranged on the outer edge of the locking disc 4', and a plurality of (three shown in fig. 4) claw holes 26' snap-fitted to the locking claws 41' in a one-to-one correspondence are provided on the annular bottom plate 22' of the generator base 2'. In this embodiment, the jaw hole 26' is opened on the outer surface of the annular standing wall 24', a square locking protrusion 27' extending radially outward is provided on the inner wall of the jaw hole 26', and a square insertion hole 42' engaged with the locking protrusion 27' is provided at the bottom end of the locking jaw 41 '. In addition, the annular base plate 22 'on the inside of the annular standing wall 24' is provided with an upwardly extending error-proofing projection 28', and the gas generator 1' and the locking disk 4 'are provided with error-proofing holes 13', 43 'which are overlapped and matched with the error-proofing projection 28'.
In the assembly of the present embodiment, the gas generator 1' is first correctly placed in the annular vertical wall 24' of the generator base 2' (the anti-mistake hole 13' on the gas generator 1' is aligned with the anti-mistake projection 28' on the annular bottom plate 22 '); then, the locking disc 4 'is used for covering the gas generator 1' (the anti-error hole 43 'on the locking disc 4' is aligned with the anti-error bulge 28 'on the annular bottom plate 22'), and the locking claws 41 'on the locking disc 4' are inserted into corresponding claw holes 26 'on the generator base 2', and the locking claws 41 'can be directly pushed into the claw holes 26' due to elastic deformation; when the stroke of the locking disc 4' is finished, the locking protrusions 27' will be inserted into the insertion holes 42' at the bottom ends of the locking claws 41', completing the installation and fixation of the gas generator 1 '.
Figures 5 and 6 show a third embodiment of an airbag assembly according to the invention, in which the generator base 2 "likewise comprises an annular base plate 22", on which annular base plate 22 "likewise an annular standing wall 24" is provided, which differs from the second embodiment in the way in which the locking claws 41 "are connected to the claw openings 26". Specifically, the locking claws 41 "are not provided with insertion holes, but are provided with outward-turned buckles 42" at the bottom ends; meanwhile, the outer edge of the locking claw 41 'is provided with a ratchet 43' extending outwards (which can be similar to a triangle or a trapezoid, etc.), the annular bottom plate 22 "of the generator base 2" is provided with pawls 27 "extending upward from the outer wall of the claw holes 26" and bent inward. It should be understood that, on the basis of the present example, it is also possible to provide the same mistake-proofing structure as the second embodiment, that is, to provide a mistake-proofing projection extending upward on the annular bottom plate 22 "inside the annular standing wall 24", and to provide a mistake-proofing hole on the gas generator 1 "to be fitted with the mistake-proofing projection, whereby the gas generator 1" is not rotatable, and the mistake-proofing projection directly positions the generator 1 ".
In the assembly of the present embodiment, the gas generator 1 "is first correctly placed in the annular standing wall 24" of the generator base 2 "(the hole for the safeguard on the gas generator 1" is aligned with the safeguard projection on the annular base plate 22 "); then, the locking disk 4 "covers the gas generator 1" and the locking claws 41 "on the locking disk 4" are inserted into the claw holes 26 "on the generator base 2", and the catches 42 "pass through the claw holes 26" on the generator base 2 "to reach the bottom of the annular base plate 22"; then the locking disk 4 'is axially rotated, the locking disk 4' can be buckled on the bottom surface of the annular bottom plate to limit the axial movement, at the moment, the pawl 27 'on the generator base 2' can be outwards pressed and deformed by the locking claw 41', the pawl 27' slides on the ratchet 43 'and is elastically restored to the original shape by utilizing the self-flexing deformation characteristic of the pawl 27'; when the locking pawl 41 "is rotated to one end of the pawl hole 26", the pawl 27 "in the pawl hole 26" reaches the ratchet teeth on the locking plate 4 "and slides over one side of the ratchet teeth before rebounding against the other side, thereby locking the locking plate 4" with the generator base 2 ".
Compared with the prior art, the gas generator is directly clamped and fixed on the generator base, or is fixed on the generator base through the locking disc clamped with the generator base, so that screws and nuts are not needed, the conventional nut screwing process can be omitted, the gas generator and the generator base can be simply and quickly connected and fixed, and the gas generator has the advantages of simplicity in assembly, simplicity in manufacturing, low cost and the like while the fixing effect of the gas generator is kept.
The above embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and various changes may be made in the above embodiments of the present invention. All simple and equivalent changes and modifications made according to the claims and the content of the specification of the present application fall within the scope of the claims of the present patent application. The invention has not been described in detail in order to avoid obscuring the invention.
Claims (9)
1. A main driving safety air bag assembly is assembled and fixed on a steering wheel framework and comprises a generator base and a gas generator, and is characterized in that the gas generator is directly fixed on the generator base in a clamping fit way with the generator base or fixed on the generator base in a clamping fit way with the generator base through a locking disc covering the gas generator, wherein,
the generator base comprises an annular base plate, the annular base plate is provided with an annular vertical wall which extends circumferentially around an inner ring of the annular base plate and is matched with the flange of the gas generator in shape, when the generator base is directly matched with the gas generator in a clamping mode, the inner surface of the annular vertical wall is provided with a plurality of protruding clamping jaws which extend radially inwards, and the flange of the gas generator is provided with a plurality of axial sockets which are in one-to-one correspondence with the protruding clamping jaws.
2. The main driving airbag assembly of claim 1, wherein the generator base and the steering wheel frame are secured by a one-to-one snap fit U-shaped snap spring and snap hook.
3. The primary driver airbag assembly of claim 1, wherein the annular floor inside the annular standing wall is provided with a cantilevered hook, and the flange of the inflator is provided with a hook hole that engages with the cantilevered hook.
4. A primary driver airbag assembly as set forth in claim 1 wherein an annular cover is provided on said annular floor extending circumferentially around said annular upstanding wall.
5. The main driving airbag assembly according to claim 1, wherein when the generator base is engaged with the locking plate, a plurality of locking claws extending downward are provided on an outer edge of the locking plate, and a plurality of claw holes corresponding to the locking claws in a one-to-one engagement are provided on an annular bottom plate of the generator base.
6. The main driving airbag assembly of claim 5, wherein the inner wall of the locking claw hole is provided with a locking protrusion extending radially outward, and the bottom end of the locking claw is provided with a jack engaged with the locking protrusion.
7. A primary driver airbag assembly as in claim 6 wherein said annular floor inboard of said annular upstanding wall is provided with axially upwardly extending anti-mistake projections, said locking disc and said catch
The flanges of the body generator are respectively provided with mistake-proofing holes matched with the mistake-proofing bulges.
8. The primary driver airbag assembly of claim 5 wherein the annular base plate has a pawl extending upwardly and inwardly from an outer wall of the pawl opening, and the locking pawl has a ratchet tooth on an outer edge thereof for engaging the pawl.
9. The primary driver airbag assembly of claim 8 wherein the bottom end of the locking pawl is provided with an outwardly turned catch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079585.4A CN107054275B (en) | 2017-02-14 | 2017-02-14 | Main driving safety airbag assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079585.4A CN107054275B (en) | 2017-02-14 | 2017-02-14 | Main driving safety airbag assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107054275A CN107054275A (en) | 2017-08-18 |
| CN107054275B true CN107054275B (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710079585.4A Active CN107054275B (en) | 2017-02-14 | 2017-02-14 | Main driving safety airbag assembly |
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| Country | Link |
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| CN (1) | CN107054275B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000071913A (en) * | 1998-08-27 | 2000-03-07 | Nippon Plast Co Ltd | Steering wheel and manufacture thereof |
| CN202294662U (en) * | 2011-09-02 | 2012-07-04 | 浙江吉利汽车研究院有限公司 | Mounting structure of driver airbag |
| CN103492236A (en) * | 2011-04-18 | 2014-01-01 | 奥托立夫开发公司 | Device for damping vibrations |
| CN205292531U (en) * | 2015-12-18 | 2016-06-08 | 太航常青汽车安全设备(苏州)有限公司 | Air bag fixed knot constructs |
| CN206968599U (en) * | 2017-02-14 | 2018-02-06 | 天合汽车科技（上海）有限公司 | A kind of main driving airbag module |
-
2017
- 2017-02-14 CN CN201710079585.4A patent/CN107054275B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000071913A (en) * | 1998-08-27 | 2000-03-07 | Nippon Plast Co Ltd | Steering wheel and manufacture thereof |
| CN103492236A (en) * | 2011-04-18 | 2014-01-01 | 奥托立夫开发公司 | Device for damping vibrations |
| CN202294662U (en) * | 2011-09-02 | 2012-07-04 | 浙江吉利汽车研究院有限公司 | Mounting structure of driver airbag |
| CN205292531U (en) * | 2015-12-18 | 2016-06-08 | 太航常青汽车安全设备(苏州)有限公司 | Air bag fixed knot constructs |
| CN206968599U (en) * | 2017-02-14 | 2018-02-06 | 天合汽车科技（上海）有限公司 | A kind of main driving airbag module |
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| Publication number | Publication date |
|---|---|
| CN107054275A (en) | 2017-08-18 |
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Address after: 201814 No. 289, Zhongbai Road, Jiading District, Shanghai Applicant after: Zeifu Automotive Technology (Shanghai) Co.,Ltd. Address before: 201814 No. 366, Taibo Road, Jiading District, Shanghai Applicant before: TRW AUTOMOTIVE TECHNOLOGIES (SHANGHAI) Co.,Ltd. |
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