CN207997835U - It can remove the air bag cover plate of tearing mark - Google Patents
It can remove the air bag cover plate of tearing mark Download PDFInfo
- Publication number
- CN207997835U CN207997835U CN201820434238.9U CN201820434238U CN207997835U CN 207997835 U CN207997835 U CN 207997835U CN 201820434238 U CN201820434238 U CN 201820434238U CN 207997835 U CN207997835 U CN 207997835U
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- China
- Prior art keywords
- air bag
- cover plate
- bag cover
- tear line
- tearing mark
- 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 is related to automobile technical fields, more particularly to a kind of air bag cover plate of removable tearing mark, including air bag cover plate, the tear line being arranged on air bag cover plate, the section of the tear line is in the trapezium structure of the wide narrow base of opening, and the opening of the tear line is flushed with the surface of the air bag cover plate.The utility model can effectively remove air bag cover plate tearing mark in the case where not changing tear line and air bag cover plate thickness;The pressure concentrated in injection moulding process is reduced by the way that concave bar and convex ribs are arranged, in injection moulding process, a part is intercepted at concave bar toward the pressure that tear line generates when concave bar is plastics liquid when will be molded, convex ribs are discharged toward high spot in injection pressure.
Description
Technical field
The utility model is related to automobile technical field more particularly to a kind of air bag cover plates of removable tearing mark.
Background technology
Automobile pair air bag currently on the market is divided into integral type and separate type(Also referred to as non-concealed formula with it is concealed), one
Body formula(Non-concealed formula)Air bag, that is, air bag cover plate and ontology be together, and after being assembled by modes such as riveting, spiral shells, then
It is assembled to instrument desk.Separate type(It is concealed)Cover board processed together with instrument desk IP, and through laser processing(Or first mould
Tool molding laser machines again)Go out tear line, will not leave behind tearing mark after painting and adding dermatoglyph.The tear line of the cover board of integral type
Processing technology is molded for mold, while because the cover board of cost factor integral type will not do laser cutting tear line, cover board is just
Face can all leave tearing mark, and can only by adjusting forming processing technology to mitigate tearing mark.If the size of the cover plate is smaller, lid
In plate injection moulding process the techniques such as adjusting parameter can allow tear line be reduced to lesser degree even it is invisible, but if the size of the cover plate
It is larger(For example cover board overall dimensions length and width are both greater than 200mm), the parameter adjustment in injection moulding process will be extremely difficult, final lid
Plate tearing mark is extremely apparent and unacceptable.
Based on the above considerations, the utility model devises a kind of air bag cover plate of removable tearing mark.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, adapt to reality and need, and provide a kind of can remove and tear
The air bag cover plate of slight crack.
In order to realize that the purpose of this utility model, the technical solution adopted in the utility model be:
The utility model discloses a kind of air bag cover plates of removable tearing mark, including air bag cover plate, setting are in airbag cover
Tear line on plate, the section of the tear line are in the trapezium structure of the wide narrow base of opening, the opening of the tear line and institute
The surface for stating air bag cover plate flushes.
The tear line is equipped with several reinforcing ribs.
The section of the reinforcing rib is not more than the cross-sectional sizes of the tear line.
The side of the tear line is equipped with the convex ribs parallel with the tear line.
The side of the convex ribs is connected with tear line, and the other side is equipped with concave bar in parallel.
The convex ribs and concave bar section be arc-shaped, triangle or zigzag structure.
The beneficial effects of the utility model are:
1. the utility model can effectively remove air bag in the case where not changing tear line and air bag cover plate thickness
Cover board tearing mark;
2. the utility model is reduced the pressure concentrated in injection moulding process by the way that concave bar and convex ribs are arranged, in injection moulding process
In, a part is intercepted at concave bar toward the pressure that tear line generates when concave bar is plastics liquid when will be molded, and convex ribs are then to be molded
Pressure is discharged toward high spot.
Description of the drawings
Fig. 1 is the part-structure sectional view of embodiment one;
Fig. 2 is the part-structure sectional view of embodiment two;
Fig. 3 is the part-structure sectional view of embodiment three.
In figure, 1 air bag cover plate, 2 tear lines, 3 reinforcing ribs, 4 convex ribs, 5 concave bars.
Specific implementation mode
The utility model is further illustrated with reference to the accompanying drawings and examples:
Referring to Fig. 1-3.
Embodiment 1:The present embodiment type discloses a kind of air bag cover plate of removable tearing mark, including air bag cover plate 1, setting
Tear line 2 on air bag cover plate 1, the section of the tear line 2 is in the trapezium structure of the wide narrow base of opening, the tear line 2
Opening flushed with the surface of the air bag cover plate 1, the section is in the trapezoidal tear line of the wide narrow base of opening, Ke Yiyou
Tearing mark on effect removal air bag cover plate 1;For 3.3mm, depth is the opening width of the tear line 2 used in the present embodiment
The thickness of 2.6mm, lowest point are 0.9mm, and tearing line length is 400mm;The thickness of the air bag cover plate 1 is that 3.3mm is effective
Eliminate tearing mark.
Embodiment 2:Place same as Example 1 repeats no more, the difference is that, the tear line 2 is equipped with several
Reinforcing rib 3, the section of the reinforcing rib 3 are not more than the cross-sectional sizes of the tear line 2, and the interval of reinforcing rib, height, width are set
Meter can be adjusted according to the positive tearing mark obvious degree of cover board, while be accounted for the influence to the time of explosion,
The increase of width and height has larger impact to the intensity of tear line, therefore if necessary to change the function and effect of reinforcing rib, reinforce
The interval of muscle can do more designs and consider, can also make the reinforcing rib of the different interval of different height.
Embodiment 3:Place same as Example 2 repeats no more, the difference is that, the side of the tear line 2 is equipped with
The convex ribs 4 parallel with the tear line 2;The side of the convex ribs 4 is connected with tear line 2, and the other side is equipped in parallel recessed
Muscle 5 reduces the pressure concentrated in injection moulding process, in injection moulding process, toward tear line 2 when concave bar 5 is plastics liquid when will be molded
The pressure of generation intercepts a part at concave bar 5, and convex ribs 4 are discharged toward high spot in injection pressure;It simultaneously also can be according to tearing
The demand selection of slight crack only designs the structure of a muscle.
The convex ribs 4 and 5 section of concave bar are arc-shaped, triangle or zigzag structure, concave bar 5 are plastics when will be molded
A part is intercepted at concave bar 5 toward the pressure that tear line 2 generates when liquid, and convex ribs 4 are discharged toward high spot in injection pressure, can
To play the role of needing meeting;The present embodiment is preferred, and the section of convex ribs 4 and concave bar 5 is the arc-shaped of radius 1.5mm
The radius of structure, two muscle of convex-concave in this structure all should not be too large or too small, though the pressure of excessive tear line can be released
It puts it is likely that another two muscle is allowed to generate shrink mark, the pressure release of too small then tear line will reduce.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalents made based on the specification and figures of the utility model are applied directly or indirectly in relevant technical field,
It is equally included in the patent within the scope of the utility model.
Claims (6)
1. a kind of air bag cover plate of removable tearing mark, it is characterised in that:Including air bag cover plate(1), be arranged in air bag cover plate(1)
On tear line(2), the tear line(2)Section in the trapezium structure of the wide narrow base of opening, the tear line(2)Opening
Place and the air bag cover plate(1)Surface flush.
2. the air bag cover plate of removable tearing mark according to claim 1, it is characterised in that:The tear line(2)On set
There are several reinforcing ribs(3).
3. the air bag cover plate of removable tearing mark according to claim 2, it is characterised in that:The reinforcing rib(3)Cut
Face is not more than the tear line(2)Cross-sectional sizes.
4. the air bag cover plate of removable tearing mark according to claim 3, it is characterised in that:The tear line(2)Side
Side is equipped with and the tear line(2)Parallel convex ribs(4).
5. the air bag cover plate of removable tearing mark according to claim 4, it is characterised in that:The convex ribs(4)Side
With tear line(2)It is connected, the other side is equipped with concave bar in parallel(5).
6. the air bag cover plate of removable tearing mark according to claim 5, it is characterised in that:The convex ribs(4)And concave bar
(5)Section is arc-shaped, triangle or zigzag structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820434238.9U CN207997835U (en) | 2018-03-29 | 2018-03-29 | It can remove the air bag cover plate of tearing mark |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820434238.9U CN207997835U (en) | 2018-03-29 | 2018-03-29 | It can remove the air bag cover plate of tearing mark |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207997835U true CN207997835U (en) | 2018-10-23 |
Family
ID=63839233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820434238.9U Active CN207997835U (en) | 2018-03-29 | 2018-03-29 | It can remove the air bag cover plate of tearing mark |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207997835U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108263330A (en) * | 2018-03-29 | 2018-07-10 | 江铃汽车股份有限公司 | It can remove the air bag cover plate of tearing mark |
| WO2022022389A1 (en) * | 2020-07-28 | 2022-02-03 | 奥托立夫开发公司 | Processing apparatus and injection molding method |
-
2018
- 2018-03-29 CN CN201820434238.9U patent/CN207997835U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108263330A (en) * | 2018-03-29 | 2018-07-10 | 江铃汽车股份有限公司 | It can remove the air bag cover plate of tearing mark |
| WO2022022389A1 (en) * | 2020-07-28 | 2022-02-03 | 奥托立夫开发公司 | Processing apparatus and injection molding method |
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