CN201872707U - Improved air bag cover - Google Patents
Improved air bag cover Download PDFInfo
- Publication number
- CN201872707U CN201872707U CN2010205651504U CN201020565150U CN201872707U CN 201872707 U CN201872707 U CN 201872707U CN 2010205651504 U CN2010205651504 U CN 2010205651504U CN 201020565150 U CN201020565150 U CN 201020565150U CN 201872707 U CN201872707 U CN 201872707U
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- CN
- China
- Prior art keywords
- air bag
- bag cover
- detonating fuse
- cover body
- fuse groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to the automobile safety accessory technical field, especially to an improved air bag cover which comprises an air bag cover body. The air bag cover body comprises explosion line grooves and a cover plate equipped on the central part of the air bag cover body. One end of each explosion line groove is connected with the cover plate. The bottom of each explosion line groove is provided with a first arc-shaped guide angle the existence of which ensures a smooth flow of melt glue inside a die and prevents the melt glue from forming weld marks on the air bag cover body. The subsequent surface treatment and coating of products are then facilitated. Meanwhile, the air bag can be prevented from being pierced by sharp points generated when the explosion line grooves are exploding. The persons inside the automobile are protected from being hurt or the hurt of the persons is alleviated. Furthermore, the improved air bag cover in the utility model has the advantages of high safety and low producing cost.
Description
Technical field
The utility model relates to automotive safety accessory technical field, particularly a kind of air bag cover of improvement.
Background technology
Along with socioeconomic continuous development, people's living standard improves constantly, and automobile has entered average family, becomes one of main vehicle of people's trip.People enjoy that automobile brought simultaneously easily, the misery that personal casualty of also bearing various traffic accident and being caused and property damage are brought, automobile air-bag system also just arises at the historic moment in this case.
Automobile air-bag system (be called for short SRS) is a supplementary security system, and it normally occurs as the auxiliary safety device of safety strap, comprises safety air bag, is used to take in the accommodation device of safety air bag and air bag cover etc.Existing safety air bag covers and offers safety air bag detonating fuse groove, so as vehicle body when being subjected to clashing safety air bag can come out from the explosion of cover plate present position smoothly, to guarantee occupant's personal safety.The cross sectional shape of existing detonating fuse groove is V-shaped, because air bag cover mostly is plastic cement products, when injection mo(u)lding, there is the defective that flows and have some setbacks in melten gel in mould, cause the product surface of air bag cover to have weld mark (being commonly called as gorgeous trace), follow-up surface treatment of product and application are impacted.
In the prior art, slowing down by the gradient with the detonating fuse groove, that melten gel is flowed in mould is smooth and easy, thereby eliminate the product surface weld mark, wedge angle breaks safety air bag thereby but the air bag cover of the prior art can't be avoided the generation of detonating fuse groove when explosion, the serious threat personal safety, safety performance is low.In addition, enlarge the breach scope of detonating fuse groove and waviness is slowed down, when increasing pattern maker, the productive costs height.
Summary of the invention
The purpose of this utility model is to provide a kind of air bag cover that does not have the low improvement of surperficial weld mark, safety performance height and productive costs at the deficiencies in the prior art.
For achieving the above object, the utility model adopts following technical proposals:
A kind of air bag cover of improvement, comprise the air bag cover body, described air bag cover body comprises detonating fuse groove and the cover plate that is arranged at air bag cover body middle part, and an end of described detonating fuse groove links to each other with cover plate, and the bottom of described detonating fuse groove is provided with the first arc lead angle.
The intersection of described detonating fuse groove and air bag cover body is provided with the second arc lead angle.
The radian of the described first arc lead angle is less than the radian of the second arc lead angle.
The A/F of described detonating fuse groove is not less than the base width of detonating fuse groove.
The base width of described detonating fuse groove is 0.1～1.5mm.
The intersection of the two sides of the base of described detonating fuse groove and detonating fuse groove is respectively arranged with the first arc lead angle.
Described air bag cover body is provided with at least two detonating fuse grooves.
Described air bag cover body is provided with four detonating fuse grooves, and four detonating fuse grooves are evenly distributed on the cover plate periphery, and wherein an end of two detonating fuse grooves links to each other with the bottom of cover plate, the curved setting of the other end of these two detonating fuse grooves.
The utility model beneficial effect is: the utility model comprises the air bag cover body, described air bag cover body comprises the detonating fuse groove and is arranged at the cover plate at air bag cover body middle part, one end of described detonating fuse groove links to each other with cover plate, and the bottom of described detonating fuse groove is provided with the first arc lead angle; The setting of the first arc lead angle; guarantee melten gel mobile smooth and easy in mould; effectively avoid melten gel on the air bag cover body, to form weld mark; for the follow-up surface treatment of product and application are provided convenience; while can be avoided the detonating fuse groove to produce wedge angle when explosion and puncture safety air bag; conscientiously the protection occupant escapes injury or alleviates injury, and safety performance height and productive costs are low.
Description of drawings
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in the accompanying drawing does not constitute any restriction of the present utility model.
Fig. 1 is the structural representation of the air bag cover of a kind of improvement of the utility model;
Fig. 2 is the cross sectional shape structural representation of detonating fuse groove of the air bag cover of a kind of improvement of the utility model;
Fig. 3 is the another kind of cross sectional shape structural representation of detonating fuse groove of the air bag cover of a kind of improvement of the utility model.
In Fig. 1, Fig. 2 and Fig. 3, include:
1---air bag cover body 2---detonating fuse groove
3---cover plates 4---, the first arc lead angle
5---the second arc lead angle.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model comprises air bag cover body 1, described air bag cover body 1 comprises detonating fuse groove 2 and is arranged at the cover plate 3 at air bag cover body 1 middle part, one end of described detonating fuse groove 2 links to each other with cover plate 3, and the bottom of described detonating fuse groove 2 is provided with the first arc lead angle 4.
When injection mo(u)lding, melten gel is after cast gate flows into mould, melten gel begins to flowing all around, detonating fuse groove 2 cooresponding positions are a protruding tankage body on mould, to certain the stopping of mobile formation of melten gel, after melten gel is pooled to certain volume, melten gel just can overflow this projection tankage body, in the bottom of detonating fuse groove 2 the first arc lead angle 4 is set, guarantees melten gel mobile level and smooth and smooth and easy in mould, effectively avoid melten gel on air bag cover body 1, to form weld mark.
When vehicle body is subjected to clashing, gas-bag system will cause the chemical reaction of similar low dose of explosive charge, detonating fuse groove 2 and cover plate 3 all break, the safety air bag that is hidden in cover plate 3 belows is just in moment inflation ejection, before occupant's health and in-vehicle device collision, play the place mat effect, alleviate the suffered impulsive force of health, alleviate the effect that the occupant comes to harm thereby reach.The setting of the first arc lead angle 4 can be avoided detonating fuse groove 2 to produce wedge angle when explosion and puncture safety air bag, guarantees occupant's personal safety, and productive costs is low and safety performance is high.
The detonating fuse groove 2 of present embodiment is provided with the second arc lead angle 5 with the intersection of air bag cover body 1.When injection mo(u)lding, melten gel is after cast gate flows into mould, melten gel begins to flowing all around, detonating fuse groove 2 cooresponding die locations are to certain the stopping of mobile formation of melten gel, intersection at detonating fuse groove 2 and air bag cover body 1 is provided with the second arc lead angle 5, and effective minimizing stops the melten gel flowing power, makes flowing of melten gel more smooth and easy, avoid producing weld mark, for follow-up surface treatment and application are provided convenience in the intersection of detonating fuse groove 2 and air bag cover body 1.
The radian of the first arc lead angle 4 of present embodiment is less than the radian of the second arc lead angle 5.When injection mo(u)lding, the inertial flow that is set to melten gel of the first arc lead angle 4 is provided convenience, the radian of the second arc lead angle 5 is greater than the radian of the first arc lead angle 4, avoid melten gel to produce weld mark in the intersection of air bag cover body 1 and detonating fuse groove 2, the radian of the second arc lead angle 5 is big more, and flowing of melten gel is milder and smooth and easy.
The A/F of the detonating fuse groove 2 of present embodiment is not less than the base width of detonating fuse groove 2.The A/F of detonating fuse groove 2 is not less than the base width of detonating fuse groove 2, guarantees in injection mo(u)lding, and the demoulding of air bag cover body 1 is more convenient, enhances productivity.
The base width of the detonating fuse groove 2 of present embodiment is 0.1～1.5mm.According to producing and the needs of processing, can be in 0.1～1.5mm scope with the base width adjusting of detonating fuse groove 2, guarantee safety air bag smoothly explosion come out.
As a preferred embodiment, when the base of detonating fuse groove 2 width was big, the intersection of the two sides of the base of detonating fuse groove 2 and detonating fuse groove 2 was respectively arranged with the first arc lead angle 4.The two ends on the base of detonating fuse groove 2 are respectively arranged with the first arc lead angle 4, guaranteed mobile level and smooth and smooth and easy in mould of when injection mo(u)lding melten gel, effectively avoid melten gel to form weld mark in detonating fuse groove 2 bottoms, for the product surface subsequent treatment is provided convenience.
The air bag cover body 1 of present embodiment is provided with at least two detonating fuse grooves 2.In the present embodiment, air bag cover body 1 is provided with two detonating fuse grooves 2, because the position thinner thickness of detonating fuse groove 2 residing air bag cover bodies 1, structural strength is low with respect to other positions of air bag cover body 1, provide convenience for the safety air bag explosion, improve safety performance of the present utility model.
As a preferred embodiment, air bag cover body 1 is provided with four detonating fuse grooves 2, and four detonating fuse grooves 2 are evenly distributed on cover plate 3 peripheries, and wherein an end of two detonating fuse grooves 2 links to each other with the bottom of cover plate 3, the curved setting of the other end of these two detonating fuse grooves 2.At air bag cover body 1 four detonating fuse grooves 2 are set, for the safety air bag explosion is provided convenience, the safety performance height, meanwhile, wherein an end of two detonating fuse grooves 2 links to each other with the bottom of cover plate 3, and the curved setting of the other end of these two detonating fuse grooves 2 guarantees that air bag cover body 1 is in explosion, the plastic cement fragment of cover plate 3 bottoms remains on the air bag cover body 1, effectively alleviates the injury that plastic cement fragment that explosion produces brings the occupant.
Certainly, the above only is a better embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (8)
1. the air bag cover of an improvement, comprise the air bag cover body, described air bag cover body comprises the detonating fuse groove and is arranged at the cover plate at air bag cover body middle part, one end of described detonating fuse groove links to each other with cover plate, it is characterized in that: the bottom of described detonating fuse groove is provided with the first arc lead angle.
2. the air bag cover of a kind of improvement according to claim 1, it is characterized in that: the intersection of described detonating fuse groove and air bag cover body is provided with the second arc lead angle.
3. the air bag cover of a kind of improvement according to claim 2, it is characterized in that: the radian of the described first arc lead angle is less than the radian of the second arc lead angle.
4. the air bag cover of a kind of improvement according to claim 3, it is characterized in that: the A/F of described detonating fuse groove is not less than the base width of detonating fuse groove.
5. the air bag cover of a kind of improvement according to claim 4, it is characterized in that: the base width of described detonating fuse groove is 0.1～1.5mm.
6. the air bag cover of a kind of improvement according to claim 5, it is characterized in that: the intersection of the two sides of the base of described detonating fuse groove and detonating fuse groove is respectively arranged with the first arc lead angle.
7. the air bag cover of a kind of improvement according to claim 6, it is characterized in that: described air bag cover body is provided with at least two detonating fuse grooves.
8. the air bag cover of a kind of improvement according to claim 7, it is characterized in that: described air bag cover body is provided with four detonating fuse grooves, and four detonating fuse grooves are evenly distributed on the cover plate periphery, wherein an end of two detonating fuse grooves links to each other with the bottom of cover plate, the curved setting of the other end of these two detonating fuse grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205651504U CN201872707U (en) | 2010-10-18 | 2010-10-18 | Improved air bag cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205651504U CN201872707U (en) | 2010-10-18 | 2010-10-18 | Improved air bag cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201872707U true CN201872707U (en) | 2011-06-22 |
Family
ID=44160639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205651504U Expired - Lifetime CN201872707U (en) | 2010-10-18 | 2010-10-18 | Improved air bag cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201872707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109367509A (en) * | 2018-11-16 | 2019-02-22 | 北京长城华冠汽车科技股份有限公司 | A kind of airbag cover of automobile |
-
2010
- 2010-10-18 CN CN2010205651504U patent/CN201872707U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109367509A (en) * | 2018-11-16 | 2019-02-22 | 北京长城华冠汽车科技股份有限公司 | A kind of airbag cover of automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |