CN103448663A - Airbag apparatus - Google Patents
Airbag apparatus Download PDFInfo
- Publication number
- CN103448663A CN103448663A CN2013101859747A CN201310185974A CN103448663A CN 103448663 A CN103448663 A CN 103448663A CN 2013101859747 A CN2013101859747 A CN 2013101859747A CN 201310185974 A CN201310185974 A CN 201310185974A CN 103448663 A CN103448663 A CN 103448663A
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- China
- Prior art keywords
- air bag
- airbag cushion
- gas generator
- incorporated
- joint portion
- Prior art date
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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
- B60R21/23—Inflatable members
- B60R21/239—Inflatable members characterised by their venting means
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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
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
- B60R21/2338—Tethers
- B60R2021/23382—Internal tether means
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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
- B60R21/23—Inflatable members
- B60R21/239—Inflatable members characterised by their venting means
- B60R2021/2395—Inflatable members characterised by their venting means comprising means to control the venting
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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
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
- B60R21/2338—Tethers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
The invention provides an airbag apparatus, which can seal or open a ventilation hole to discharge air and adjust the unfolding pressure of an airbag cushion. An air generator is provided with a breaking line which can be broken by means of the inner air pressure in, and a breaking part which forms the breaking line and enables an opening/closing apparatus for sealing or opening the ventilation hole to be combined with the breaking part. The breaking part opens with the breaking line being the reference and is separated from the opening/closing apparatus by means of the inner air pressure. When the air generator starts, the opening/closing apparatus is separated. The airbag apparatus is advantageous in that the response and reliability of the unfolding pressure adjustment by the airbag cushion can be improved; the unfolding pressure of the airbag cushion can be adjusted at an accurate timing, and the failing possibility of adjusting the unfolding pressure can be reduced.
Description
Technical field
The present invention relates to air bag device, more specifically, relate to a kind of gas discharge rate that can regulate airbag cushion, regulate the air bag device of the expansion pressure of described airbag cushion.
Background technology
Generally speaking, air bag device is a kind of when car accedent, and the gas produced by charging blower flows into airbag cushion, the expansion of expanding by means of described gas of described airbag cushion, the device that the passenger is protected.
Recently, occurred the passenger motionless by the constraint of described airbag cushion after, because the example that causes head of passenger and whiplass is pressed in the excessive expansion of described airbag cushion.Particularly, in North America, formulated the rules about the commodity of this air bag device, whether strict the evaluation is pressed and is caused head of passenger and whiplass because of the expansion of described airbag cushion.
Therefore require a kind of air bag device, can be at the expansion initial stage of described airbag cushion, stop gas too much to be discharged, keep launching to press, seek to launch early, can be appended Exhaust Gas by the appropriate time point before and after described airbag cushion parcel the passenger, reduce passenger's cervical injuries and chest injury.
In addition; also require a kind of air bag device; can be baby or children, be that adult or the larger adult of body that body is less applies different airbag cushion expansion pressures according to the occupant who sits on the seat; described occupant can not press and come to harm because of the excessive expansion of described airbag cushion, by means of suitable expansion, presses and is protected.
Summary of the invention
(technical matters that will solve)
The problem that the present invention will solve is to provide a kind of by making the air extractor vent that gas is discharged seal or open, and regulates the air bag device of the expansion pressure of airbag cushion.
Problem of the present invention not is defined in above-mentioned problem, and the person of ordinary skill in the field can understand NM other problems clearly from following record.
(means of dealing with problems)
For reaching described problem, the air bag device of the embodiment of the present invention comprises: airbag cushion, and it expands after gas flows into, and is formed with the air extractor vent of discharging for described gas; Opening and closing device, it is incorporated into described airbag cushion, in order to can seal or open described air extractor vent; Gas generator, it is combined with described opening and closing device, when gas occurs, with described opening and closing device, separates, in order to make described opening and closing device can seal or open described air extractor vent along with the expansion of described airbag cushion; Described gas generator is formed with the fracture section of being combined with described opening and closing device, be formed with in described fracture section the line of rupture ruptured by means of inner air pressure, described line of rupture be take as benchmark opens in described fracture section by means of inner air pressure, with described opening and closing device, separate.
The details of other embodiment are contained in detailed description and accompanying drawing.
(effect of invention)
Air bag device of the present invention is formed with the line of rupture damaged by means of inner air pressure in gas generator, the opening and closing device that seals or open described air extractor vent by handle is incorporated into the fracture section that is formed with this line of rupture, thereby described fracture section is by means of inner air pressure, the described line of rupture of take opens as benchmark, with described opening and closing device, separate, thereby when described gas generator starts, described opening and closing device separates, so, raising presses to the expansion of airbag cushion responsibility and the reliability of regulating, have and not only can regulate at correct time point the expansion pressure of airbag cushion, and can reduce the effect that the failed possibility of adjusting is pressed in expansion.
Effect of the present invention not is defined in above-mentioned effect, and the person of ordinary skill in the field can understand NM other effects clearly from the record of request scope.
The accompanying drawing explanation
Fig. 1 is the air bag device figure that shows the present invention the 1st embodiment,
Fig. 2 is the figure that shows vent cover shown in Fig. 1 and frenulum,
Fig. 3 shows guide panel figure shown in Fig. 1,
Fig. 4 is the isometric front view of the shell of safety air bag shown in Fig. 1,
Fig. 5 is the rear isometric view of Fig. 4,
Fig. 6 is the exploded block diagram of Fig. 5,
Fig. 7 is the combination figure that shows frenulum, gas generator and lid shown in Fig. 4,
Fig. 8 is the figure that shows gas generator shown in Fig. 7,
Fig. 9 is the startup figure of gas generator shown in Fig. 8,
Figure 10 is the main portion isometric front view of the air bag device of the present invention the 2nd embodiment,
Figure 11 is the rear isometric view of Figure 10,
Figure 12 is the exploded block diagram of Figure 10,
Figure 13 is the section-drawing shown before gas generator in the air bag device of the embodiment of the present invention starts,
Figure 14 is the startup figure of Figure 13,
Figure 15 be show in the air bag device of the embodiment of the present invention that airbag cushion expands, the section-drawing of gas generator while not starting,
Figure 16 be show in the air bag device of the embodiment of the present invention that airbag cushion expands, the section-drawing of gas generator while starting.
(description of reference numerals)
10: 18: the 1 through holes of safety air bag shell
20: charging blower 30: airbag cushion
36: air extractor vent 40: opening and closing device
42: vent cover 44: frenulum
46: combination member 46a: the 1st combination member
46b: the 2nd combination member 46c: combined hole
46d: frenulum joint portion 46e: curve
48: guide panel 48a: intercommunicating pore
50: gas generator 55: fracture section
57: line of rupture 60: seat ring
64: the 3 through holes of 62: the 2 through holes
70: cover 72: main part
72a: 74: the 1 joint portions of patchhole
76: the 2 joint portions 80: adapter plate
82: seat ring joint portion 84: the gas generator joint portion
85: through hole
The specific embodiment
With reference to accompanying drawing and the embodiment described later together described in detail, advantages and features of the invention and reach its method will be clear and definite.But, the present invention not is defined in the embodiment of following discloses, but can embody with mutually different variform, the present embodiment only is provided for making of the present invention open more complete, make those skilled in the art can understand the category of invention fully, the present invention is only defined by the category of claim.In specification sheets in the whole text, identical reference marks refers to identical inscape.
The air bag device of the embodiment of the present invention is described with reference to the accompanying drawings.
Fig. 1 is the figure that shows the air bag device of the present invention the 1st embodiment.
As shown in Figure 1, the air bag device of the present invention the 1st embodiment is the safety device that protection rides on the co-pilot seat passenger when car accedent.But, the most crucial technology of the present invention is as described later shown in Fig. 8 and Fig. 9, to form line of rupture 57 in gas generator 50, the opening and closing device 40 of regulating the gas discharge rate of airbag cushion 30 by handle directly is incorporated into the fracture section 55 that is formed with this line of rupture 57, thereby make when gas generator 50 starts, opening and closing device 40 separates from gas generator 50, raising launches to press to airbag cushion 30 responsibility and the reliability of regulating, therefore, the gas generator 50 that is formed with line of rupture 57 in fracture section 55 is applied to airbag device for drivers, the air bag devices such as knee airbag device, can easily change enforcement by the person of ordinary skill in the field.In the following description, only take the co-pilot seat air bag device describes as example.
The air bag device of the present invention the 1st embodiment comprises safety air bag shell 10, charging blower 20, airbag cushion 30, opening and closing device 40 and gas generator 50.
Safety air bag shell 10 is taken in airbag cushion 30, is installed on described automobile.
The head of charging blower 20 can insert from the outside of safety air bag shell 10 inner, with airbag cushion 30 combinations.
Airbag cushion 30 comprises: main panel 32, and its expansion of expanding, contact with the passenger; Side panel 34, it is disposed at respectively the both sides of main panel 32.
Airbag cushion 30 should expand into sufficient pressure, in order to can guarantee to protect passenger's cushion effect, charging blower 20 produces far more than the gas of airbag cushion 30 gas flow that (FUll) expands fully.Therefore, if the gas that produces and flow in airbag cushion 30 from charging blower 20 is not discharged, the expansion of airbag cushion 30 is pressed and will excessively be raise, and exists on the contrary the passenger who is surrounded by airbag cushion 30 to press injured possibility because of the excessive expansion of airbag cushion 30.
So, press excessively and raise for the expansion that prevents airbag cushion 30, on airbag cushion 30, be formed with to the main air extractor vent 35 of side panel 34 Exhaust Gas.When airbag cushion 30 has expanded expansion, the passenger is surrounded by main panel 32, and therefore, main air extractor vent 35 forms at side panel 34, makes the gas of high temp/high pressure state directly not discharge to the passenger by main air extractor vent 35.
On the other hand, on airbag cushion 30, not only be formed with main air extractor vent 35 on side panel 34, also be formed with air extractor vent 36, opening and closing device 40 is incorporated into airbag cushion 30, in order to can seal or open air extractor vent 36.That is, opening and closing device 40 1 ends, when covering air extractor vent 36, are sutured in the inboard of side panel 34, and the other end is incorporated into gas generator 50.
Wherein, gas generator 50 is identical with charging blower 20, is filled with the gas generation medium that gas occurs in inside, and according to the control signal of controller (not shown), described gas generation medium explodes and produces gas.So, if produce gas in the inside of gas generator 50, gas generator 50 separates with opening and closing device 40 by means of inner air pressure.
Opening and closing device 40 is incorporated into airbag cushion 30, in order to can seal or open air extractor vent 36.Airbag cushion 30 is in relaxed state before expansion, and the length that airbag cushion 30 can be tightened when expanding into both sizings forms.
Therefore, when airbag cushion 30 both is expanded to sizing, if gas generator 50 does not produce gas, opening and closing device 40 keeps the state with gas generator 50 combinations, tightens and keep the state in closed vent hole 36.On the contrary, when airbag cushion 30 both is expanded to sizing, if gas generator 50 produces gases, opening and closing device 40 separates from gas generator 50, in relaxed state, makes air extractor vent 36 to open.
So opening and closing device 40 is in the situation that, from gas generator 50 separation, closed vent hole 36, in the situation that separate from gas generator 50, open air extractor vent 36, but not be defined in this.; the structure of opening and closing device 40 can be out of shape enforcement by the those skilled in the art, in the situation that opening and closing device 40 does not separate from gas generator 50, opens air extractor vent 36; in the situation that opening and closing device 40 separates from gas generator 50, make air extractor vent 36 sealings.Below, be defined in opening and closing device 40 and be in the situation that not from gas generator 50 separate sealing air extractor vents 36, in the situation that separate from gas generator 50 structure of opening air extractor vent 36 and describe.
Opening and closing device 40 comprises: vent cover 42, and it is when covering air extractor vent 36, and suturing part 42a is incorporated into the inboard of airbag cushion 30; Guide panel 48, it is incorporated in airbag cushion 30, guiding vent cover 42; Frenulum 44, the one end is incorporated into vent cover 42; Combination member 46, the other end that it is incorporated into frenulum 44, be incorporated into gas generator 50.
If gas generator 50 does not start, combination member 46 does not separate from gas generator 50, and so, the frenulum 44 that vent cover 42 is tightened by the expansion along with airbag cushion 30 pulls, by air extractor vent 36, do not protrude from the outside of airbag cushion 30, still keep the state in closed vent hole 36.
In addition, if gas generator 50 starts, in the inside of gas generator 50, produce gas, so, combination member 46 separates from gas generator 50 by means of the air pressure of gas generator 50 inside.So, if combination member 46 separates from gas generator 50, even airbag cushion 30 expands, frenulum 44 is still in relaxed state, therefore, vent cover 42 protrudes to the outside of airbag cushion 30 by air extractor vent 36, and air extractor vent 36 is opened, and the gas in airbag cushion 30 is discharged to outside.
Fig. 2 is the figure that shows vent cover 42 shown in Fig. 1 and frenulum 44, and Fig. 3 is the figure that shows guide panel 48 shown in Fig. 1.
As shown in Figure 1 to Figure 3, vent cover 42 forms with the flexibility material with the sufficient area that can cover air extractor vent 36, and periphery part suturing part 42a is incorporated into airbag cushion 30, is sutured in an end of frenulum 44 in a side.Frenulum 44 also forms with the flexibility material, in order to can be incorporated into vent cover 42 by stitching.Vent cover 42 firmly is sutured in airbag cushion 30, and an end of frenulum 44 also firmly is sutured in vent cover 42, in order to, in the situation that vent cover 42 is pulled by frenulum 44, vent cover 42 is not separated from airbag cushion 30.
Be formed with the intercommunicating pore 48a be communicated with air extractor vent 36 on guide panel 48.Intercommunicating pore 48a and air extractor vent 36 betweens are provided with vent cover 42, are disposed at mutual position in opposite directions.Therefore, air extractor vent 36 and intercommunicating pore 48a cut off mutually by means of vent cover 42.If vent cover 42 protrudes to the outside of airbag cushion 30 by air extractor vent 36, mutually communicate, thereby the gas in airbag cushion 30 can be discharged to outside by intercommunicating pore 48a and air extractor vent 36.
Fig. 4 is the isometric front view of the shell of safety air bag shown in Fig. 1 10, and Fig. 5 is the rear isometric view of Fig. 4, and Fig. 6 is the exploded block diagram of Fig. 5, and Fig. 7 shows frenulum 44, gas generator 50 shown in Fig. 4 and covers 70 combination figure.
As shown in Fig. 1 and Fig. 4 to Fig. 7, safety air bag shell 10 forms with the square tube shape, in order to can take in airbag cushion 30.
Safety air bag shell 10, in order to be incorporated into vehicle body, disposes side fixed mount 12 in both sides, at downside, dispose downside fixed mount 14, is formed with hook portion 16 in front and back.Side fixed mount 12 and downside fixed mount 14 are linked to vehicle body by bolt, and hook portion 16 forms at the upside of safety air bag shell 10, and hook is incorporated into vehicle body.
Dispose the seat ring 60 that airbag cushion 30 is incorporated into to safety air bag shell 10 in the inboard of safety air bag shell 10.After seat ring 60 inserts the lower end of airbag cushion 30, thru-bolt 65 can connect successively seat ring 60, airbag cushion 30, safety air bag shell 10 and charging blower 20 and be linked.Certainly, can be also that seat ring 60 configures to such an extent that surround rear flank outside the lower end of airbag cushion 30, thru-bolt 65 connects successively airbag cushion 30, seat ring 60, safety air bag shell and charging blower 20 and is linked.
The head of charging blower 20 connects seat ring 60 from the downside insertion of safety air bag shell 10 is inner, thereby can be disposed at airbag cushion 30 inside.
Protrude from main part 72 to upside the 1st joint portion 74, and elasticity is mounted on the both sides of gas generator 50, thereby gas generator 50 is incorporated into and covers 70, does not make and moves along its length.
Protrude from the both sides of main part 72 the 2nd joint portion 76, inserts the rear elasticity of seat ring 60 and articulate, thereby make, covers 70 and can be incorporated into seat ring 60.
Be formed with the 1st through hole 18 inserted for main part 72 on safety air bag shell 10.That is, cover 70 main part 72 and be inserted in the 1st through hole 18 formed on safety air bag shell 10, do not move to radial direction thereby make.
Be formed with the 2nd through hole 62 inserted for the 1st joint portion 74 on seat ring 60.That is, the 1st joint portion 74 is mounted on the state of gas generator 50 both sides with elasticity, with gas generator 50, together inserts the 2nd through hole 62.
In addition, on seat ring 60, from described the 2nd through hole 62, be formed with the 3rd through hole 64 inserted for the 2nd joint portion 76 in both sides.
The lower end of frenulum 44 is incorporated into the upside of gas generator 50 by combination member 46.Combination member 46 can connect the lower end of soft frenulum 44, is incorporated into the upside of the gas generator 50 formed with iron and steel material quality.For example, combination member 46 can be used rivet.
Fig. 8 is the figure that shows gas generator shown in Fig. 7, and Fig. 9 is the startup figure of gas generator shown in Fig. 8.
As shown in Figure 7 to 9, at the upside of gas generator 50, be formed with the fracture section 55 with opening and closing device 40 combinations.That is, at fracture section 55 Intercalations, combination member 46 is arranged.Be formed with the line of rupture 57 ruptured by means of inner air pressure in fracture section 55.Line of rupture 57 is to be cut and formed by the part of gas generator 50 upsides, if make gas generator 50 start, in the inside of gas generator 50, produces gas, and line of rupture 57 can rupture because of the internal gas pressure of gas generator 50.Therefore, if produce gas in gas generator 50, line of rupture 57 ruptures by means of the gaseous tension of gas generator 50 inside, therefore, fracture section 55 take line of rupture 57 and opens as benchmark, with the combination member 46 as one of opening and closing device 40, separate, thereby responsibility and the reliability of the opening and closing device 40 of the expansion pressure of adjusting airbag cushion 30 are improved.
Line of rupture 57, in abutting connection with the periphery of the combination member 46 that inserts fracture section 55, with radial configuration, makes the combination member that is inserted in 55 combinations of fracture section to separate rapidly outside the periphery of combination member 46.But, the shape of line of rupture 57, in abutting connection with the periphery of the combination member 46 that inserts fracture section 55, can be implemented with diversely distortion such as circular, ellipse, star and rhombuses.
In addition, in the both sides of gas generator 50, be formed with the end-edge part 54 articulated for the 1st joint portion 74 elasticity of covering 70.
Figure 10 is the main portion isometric front view of the air bag device of the present invention the 2nd embodiment, and Figure 11 is the rear isometric view of Figure 10, and Figure 12 is the exploded block diagram of Figure 10.Wherein, for the part identical with aforesaid the 1st embodiment, use identical reference numeral, omit detailed description thereof, difference only is described.
With reference to the air bag device of the known the present invention of Figure 10 to Figure 12 the 2nd embodiment and the difference of aforementioned the 1st embodiment.
That is, in the 1st embodiment, combination member 46 forms one, after perforation frenulum 44, is incorporated into fracture section 55, and in this 2nd embodiment, combination member 46 forms two, comprising: the 1st combination member 46a, and it is incorporated into the other end of frenulum 44; The 2nd combination member 46b, it connects the 1st combination member 46a, is incorporated into fracture section 55, and the 1st combination member 46a is incorporated into to gas generator 50.So, if combination member 46 is formed by the 1st combination member 46a and the 2nd combination member 46b, so, with the 1st embodiment, compare, can prevent whether frenulum 44 from starting independently and separating from combination member 46 with gas generator 50.
The 1st combination member 46a comprises: frenulum joint portion 46d, and it is formed with the combined hole 46c for frenulum 44 other end Intercalations; Curve 46e, it, connects for the 2nd combination member 46b in order to can be incorporated into fracture section 55 from the 46d bending of frenulum joint portion.
In addition, in aforementioned the 1st embodiment, gas generator 50 is incorporated into seat ring 60, but, in this 2nd embodiment, comprises the adapter plate 80 that gas generator 50 is incorporated into to the side of seat ring 60.
In addition, cover 70 with gas generator 50 combinations, be incorporated into adapter plate 80.
The 1st joint portion 74 and the 2nd joint portion 76 alternately form along the periphery of main part 72, orthogonal ground configuration mutually.
On adapter plate 80, with ellipse, be formed with for covering 70 through holes 85 that insert, if lid 70 is being inserted to the rear rotation of through hole 85, the upside of adapter plate 80 is connected airtight in the 1st joint portion 74, and the downside of adapter plate 80 is connected airtight in the 2nd joint portion 76, thereby cover 70, can be incorporated into adapter plate 80.
Below with reference to Figure 13 to Figure 16, examine or check the action of the air bag device of the embodiment of the present invention as constructed as above.
Figure 13 is the section-drawing shown before gas generator 50 in the air bag device of the embodiment of the present invention starts, Figure 14 is the startup figure of Figure 13, Figure 15 be show in the air bag device of the embodiment of the present invention that airbag cushion 30 expands, the section-drawing of gas generator 50 while not starting, Figure 16 be show in the air bag device of the embodiment of the present invention that airbag cushion 30 expands, the section-drawing of gas generator 50 while starting.
At first, as shown in FIG. 13 and 14, at the signal of the with good grounds controller (not shown) of the internal configurations of gas generator 50, explode advance material 51 the 1st time, the 2nd secondary propellant 53 of the concurrent angry body that explodes by means of the blast of the 1st secondary propellant 51.Wherein, described controller does not start gas generator 50 at the expansion initial stage of airbag cushion 30, and the time point surrounded by airbag cushion 30 the passenger starts gas generator 50.
Certainly, the signal of the sensor of the sensor that the passenger that described controller utilizes perception to be seated at co-pilot seat bears a heavy burden or the electrostatic capacity of sensing passengers, (for example distinguish passenger's kind, baby, children, adult and the larger adult of body that body is less), determine whether to start gas generator 50, launch to press thereby can apply different airbag cushion 30 according to passenger's kind.In addition, described controller utilizes perception to be seated at the sensor of the passenger position of co-pilot seat, according to the distance of passenger and airbag cushion 30, determine whether to start gas generator 50, thereby can apply according to passenger's position the expansion pressure of different airbag cushion 30.
Described controller can be both to be disposed at the ACU(Airbag Control Unit of automobile for controlling air bag device, safety air sac controller), can be also the ECU(Electronic Control Unit that is equipped with described ACU function, electronic control package).
As shown in Figure 15 and Figure 16, if automobile has an accident,, according to the control signal of described controller, charging blower 20 produces gas, be filled with in airbag cushion 30, thereby airbag cushion 30 starts the expansion of expanding.
If expansion initial stage of airbag cushion 30 or be seated at co-pilot seat passenger's kind and position is different when needing to improve airbag cushion 30 and launching to press, in the process that described controller must expand at airbag cushion 30, control and make gas generator 50 not produce gas.Therefore, as shown in figure 15, opening and closing device 40 does not separate from gas generator 50, thereby the state in vent cover 42 maintenance closed vent holes 36, and the gas in airbag cushion 30 is not discharged by air extractor vent 30, so raising is pressed in the expansion of airbag cushion 30.
In addition, if the time point that the passenger is surrounded by airbag cushion 30 or be seated at co-pilot seat passenger's kind and position is different when needing to reduce airbag cushion 30 and launching to press, control in the process that described controller must expand at airbag cushion 30 and make gas generator 50 generation gases.Therefore, as shown in figure 16, opening and closing device 40 separates from gas generator 50, thereby vent cover 42 protrudes to airbag cushion 30 is outside by air extractor vent 36 by means of the air pressure in airbag cushion 30, gas in airbag cushion 30 is successively by after intercommunicating pore 48a and air extractor vent 36, discharge both sides to vent cover 42, so the expansion drops of airbag cushion 30.
As mentioned above, air bag device of the present invention is formed with the line of rupture 57 damaged by means of air pressure inside in gas generator 50, the opening and closing device 40 that seals or open air extractor vent 36 by handle is incorporated into the fracture section 55 that is formed with this line of rupture 57, thereby fracture section 55 take line of rupture 57 and opens as benchmark by means of air pressure inside, with opening and closing device 40, separate, therefore, opening and closing device 40 separates when gas generator 50 starts, so improve, the expansion of airbag cushion 30 is pressed to responsibility and the reliability of regulating, not only can regulate at correct time point the expansion pressure of airbag cushion 30, and can reduce the failed possibility of expansion pressure adjusting.
Those skilled in the art are appreciated that the present invention can implement with other concrete forms under the prerequisite that does not change its technological thought or essential feature.Therefore, the embodiment of above record only is interpreted as example in all respects, and non-limiting.Scope of the present invention should be interpreted as, and is not by above-mentioned detailed description performance, but, by claims performance described later, the meaning of claims and scope and all changes of being derived by its impartial concept or the form of distortion are contained in scope of the present invention.
Claims (16)
1. an air bag device, is characterized in that, comprising:
Airbag cushion, it expands after gas flows into, and is formed with the air extractor vent of discharging for described gas;
Opening and closing device, it is incorporated into described airbag cushion, in order to can seal or open described air extractor vent; And
Gas generator, it is combined with described opening and closing device, when gas occurs, with described opening and closing device, separates, in order to make described opening and closing device can seal or open described air extractor vent along with the expansion of described airbag cushion;
Described gas generator is formed with the fracture section of being combined with described opening and closing device, be formed with in described fracture section the line of rupture ruptured by means of inner air pressure, described line of rupture be take as benchmark opens in described fracture section by means of inner air pressure, with described opening and closing device, separate.
2. air bag device according to claim 1, is characterized in that,
Described opening and closing device comprises:
Vent cover, it is incorporated in described airbag cushion when covering described air extractor vent;
Guide panel, it is formed with the intercommunicating pore be communicated with described air extractor vent, is incorporated in described airbag cushion, guides described vent cover;
Frenulum, the one end is incorporated into described vent cover; And
Combination member, it is incorporated into the other end of described frenulum, and is incorporated into described fracture section.
3. air bag device according to claim 2, is characterized in that,
Described vent cover described combination member from described breaking portion from, by described air extractor vent, to the outside of described airbag cushion, protrude, the gas interior described airbag cushion is discharged to outside.
4. air bag device according to claim 2, is characterized in that,
Described vent cover is disposed between described airbag cushion and guide panel, makes described air extractor vent and intercommunicating pore mutually cut off or to be communicated with.
5. air bag device according to claim 2, is characterized in that,
Described combination member inserts described fracture section and carries out combination,
Described line of rupture is disposed at the outside from the periphery of the described combination member that inserts described fracture section.
6. air bag device according to claim 1, is characterized in that, also comprises:
The safety air bag shell, it is taken in for described airbag cushion; Seat ring, its described airbag cushion is incorporated into described safety air bag shell;
Lid, it is combined with described gas generator, is incorporated into described seat ring.
7. air bag device according to claim 6, is characterized in that,
Described lid comprises:
Main part, it is formed with the patchhole inserted for the lower end of described gas generator in inboard, and the outside is inserted in described safety air bag shell;
The 1st joint portion, it protrudes to upside from described main part, and elasticity is mounted on the both sides of described gas generator;
The 2nd joint portion, protrude its both sides from described main part, is inserted in described seat ring elasticity and articulates.
8. air bag device according to claim 7, is characterized in that,
Be formed with the 1st through hole inserted for described main part on described safety air bag shell;
Be formed with the 2nd through hole inserted for described the 1st joint portion on described seat ring, from described the 2nd through hole, be formed with the 3rd through hole inserted for described the 2nd joint portion in both sides.
9. air bag device according to claim 2, is characterized in that,
Described combination member comprises: the 1st combination member, and it is linked to the other end of described frenulum;
The 2nd combination member, it connects described the 1st combination member and is incorporated into described fracture section, and described the 1st combination member is incorporated into to described gas generator.
10. air bag device according to claim 9, is characterized in that,
Described the 1st combination member comprises:
The frenulum joint portion, it is formed with the combined hole for the other end Intercalation of described frenulum;
Curve, it is from the joint portion bending of described frenulum, in order to can be incorporated into described fracture section, for described the 2nd combination member, connects.
11. air bag device according to claim 1, is characterized in that, also comprises:
The safety air bag shell, it takes in described airbag cushion; Seat ring, its described airbag cushion is incorporated into described safety air bag shell;
Adapter plate, its described gas generator is incorporated into described seat ring.
12. air bag device according to claim 11, is characterized in that,
Described adapter plate comprises:
The seat ring joint portion, it is incorporated into the side of described seat ring;
The gas generator joint portion, it is from the joint portion bending of described seat ring, for described gas generator combination.
13. air bag device according to claim 11, is characterized in that, also comprises:
Lid, it is combined with described gas generator, is incorporated into described adapter plate.
14. air bag device according to claim 13, is characterized in that,
Described lid comprises:
Main part, it is formed with the patchhole inserted for the lower end of described gas generator in inboard, and the outside is inserted in described adapter plate;
The 1st joint portion, its periphery of upside at described main part is protruded, and connects airtight the upside of described adapter plate;
The 2nd joint portion, it leaves to downside from described the 1st joint portion, in the upside periphery of described main part, protrudes, and connects airtight the downside of described adapter plate.
15. air bag device according to claim 14, is characterized in that,
Described the 1st joint portion and the 2nd joint portion alternately form along the periphery of described main part.
16. air bag device according to claim 14, is characterized in that,
Be formed with the oval-shaped through hole inserted for described lid on described adapter plate, make it to rotate after described lid is inserted to described through hole, the upside of described adapter plate is connected airtight in described the 1st joint portion, and the downside of described adapter plate is connected airtight in described the 2nd joint portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2012-0059679 | 2012-06-04 | ||
| KR1020120059679A KR101875919B1 (en) | 2012-06-04 | 2012-06-04 | Airbag apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103448663A true CN103448663A (en) | 2013-12-18 |
| CN103448663B CN103448663B (en) | 2016-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310185974.7A Active CN103448663B (en) | 2012-06-04 | 2013-05-20 | Air bag device |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101875919B1 (en) |
| CN (1) | CN103448663B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016001142A1 (en) * | 2016-02-03 | 2017-08-03 | Trw Automotive Gmbh | Method for mounting an actuator assembly and gas bag module with a mounted actuator assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003006276A2 (en) * | 2001-07-12 | 2003-01-23 | Delphi Technologies, Inc. | Variable venting air bag assembly |
| US20040012179A1 (en) * | 2002-07-19 | 2004-01-22 | Pinsenschaum Ryan Todd | Air bag restraint including selectively operable venting elements |
| US20040017069A1 (en) * | 2002-07-24 | 2004-01-29 | Trw Vehicle Safety Systems Inc. | Air bag with vent |
| WO2008155954A1 (en) * | 2007-06-19 | 2008-12-24 | Takata Corporation | Airbag device and occupant restraint device |
| EP2159112A1 (en) * | 2007-06-18 | 2010-03-03 | Takata Corporation | Airbag, airbag device, and method of exhausting airbag |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007261411A (en) * | 2006-03-28 | 2007-10-11 | Toyoda Gosei Co Ltd | Airbag device |
| JP2010023592A (en) * | 2008-07-16 | 2010-02-04 | Toyoda Gosei Co Ltd | Airbag apparatus |
| JP4649508B2 (en) * | 2008-09-29 | 2011-03-09 | トヨタ自動車株式会社 | Airbag device for passenger seat |
-
2012
- 2012-06-04 KR KR1020120059679A patent/KR101875919B1/en active IP Right Grant
-
2013
- 2013-05-20 CN CN201310185974.7A patent/CN103448663B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003006276A2 (en) * | 2001-07-12 | 2003-01-23 | Delphi Technologies, Inc. | Variable venting air bag assembly |
| US20040012179A1 (en) * | 2002-07-19 | 2004-01-22 | Pinsenschaum Ryan Todd | Air bag restraint including selectively operable venting elements |
| US20040017069A1 (en) * | 2002-07-24 | 2004-01-29 | Trw Vehicle Safety Systems Inc. | Air bag with vent |
| EP2159112A1 (en) * | 2007-06-18 | 2010-03-03 | Takata Corporation | Airbag, airbag device, and method of exhausting airbag |
| WO2008155954A1 (en) * | 2007-06-19 | 2008-12-24 | Takata Corporation | Airbag device and occupant restraint device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20130136102A (en) | 2013-12-12 |
| CN103448663B (en) | 2016-08-17 |
| KR101875919B1 (en) | 2018-07-09 |
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