CN115056742B - Roof airbag structure - Google Patents
Roof airbag structure Download PDFInfo
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- CN115056742B CN115056742B CN202210900378.1A CN202210900378A CN115056742B CN 115056742 B CN115056742 B CN 115056742B CN 202210900378 A CN202210900378 A CN 202210900378A CN 115056742 B CN115056742 B CN 115056742B
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- air bag
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- air
- roof
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- 238000004891 communication Methods 0.000 claims abstract description 47
- 239000000178 monomer Substances 0.000 claims description 19
- 230000006378 damage Effects 0.000 abstract description 4
- 230000033001 locomotion Effects 0.000 description 7
- 230000003139 buffering effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000028373 Neck injury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
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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
- B60R21/214—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in roof panels
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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
-
- 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
- B60R2021/23161—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for protecting at least two passengers, e.g. preventing them from hitting each other
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
The invention relates to the field of air bags, in particular to a roof air bag structure, which comprises an air bag, wherein an air generator is arranged in the air bag; the gas bag comprises a first gas bag, a second gas bag and a third gas bag; the first air bag is provided with a first communication hole; the third air bag is provided with a second communication hole; the first air bag is communicated with the second air bag through the first communication hole, and the second air bag is communicated with the third air bag through the second communication hole; a gas generator is arranged in the first air bag; the invention discloses a roof airbag structure which is arranged in a roof area, and can be opened when the side of an automobile collides, so that a cab and a copilot are isolated, lateral impact of passengers in the cab and the copilot is buffered and protected, and damage to the passengers in the automobile is reduced when the side of the automobile collides.
Description
Technical Field
The invention relates to the field of air bags, in particular to a roof air bag structure.
Background
When a vehicle collides sideways, the upper trunk of the passenger at the far end of the collision side can incline to the collision side, and the passengers of the front row collide with each other, so that serious injury is caused.
In view of this situation, most automobile manufacturers adopt a technical solution in which a remote airbag is installed on the seatback of the front driver seat.
After a single air bag is unfolded vertically, the rigidity is poor, the movement trend of an occupant is weakened, the movement of the occupant cannot be effectively blocked, and if the air bags are arranged on the front row and the seat back respectively, a plurality of uncertain factors exist in the unfolding process.
To achieve protection of the collision side distal end of front-row drivers, passengers, it is now desirable to develop a new distal end occupant protection airbag device.
Disclosure of Invention
The invention aims to provide an airbag structure for collision side distal protection of drivers and passengers.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the roof airbag structure comprises a gas bag, wherein a gas generator is arranged in the gas bag;
the gas bag comprises a first gas bag, a second gas bag and a third gas bag;
the first air bag is provided with a first communication hole; the third air bag is provided with a second communication hole;
the first air bag is communicated with the second air bag through the first communication hole, and the second air bag is communicated with the third air bag through the second communication hole;
and a gas generator is arranged in the first air bag.
The first air bag is longitudinally arranged; the third air bags are distributed outside the first air bags; the second air bags are distributed outside the lower end of the first air bag; the third air pocket is above the second air pocket.
The third air bag comprises two monomer air bags, and the two monomer air bags are respectively distributed on two opposite side surfaces of the first air bag.
The first air bag comprises a first bag body, and the first bag body comprises a first upper bag surface and a first lower bag surface; the first upper bag surface is connected with the first lower bag surface through the first side bag surface; the first side pocket face comprises a side pocket face body, the side pocket face body comprises an upper side pocket face and a lower side pocket face, and the lower side pocket face is obliquely arranged.
The monomer air bag comprises a second upper bag surface and a second lower bag surface, and the second upper bag surface is connected with the second lower bag surface through a second side bag surface; the second lower pocket face is obliquely arranged.
The second lower bag surface comprises a second lower inclined surface and an arc-shaped connecting surface, and the second lower inclined surface is connected with the second side bag surface through the arc-shaped connecting surface.
The joint of the second air bag and the third air bag is positioned at the joint of the second lower inclined surface and the arc-shaped connecting surface.
And the corners of the first air bag, the second air bag and the third air bag are transited by adopting arc surfaces.
The first air bag is connected with the monomer air bag through a drawstring.
The first air bag is provided with a plurality of first communication holes; the third air bag is provided with a plurality of second communication holes; the number of the first communication holes is larger than the number of the second communication holes.
The invention has the advantages that;
the invention discloses a roof airbag structure which is arranged in a roof area, and can be opened when the side of an automobile collides, so that a cab and a copilot are isolated, lateral impact of passengers in the cab and the copilot is buffered and protected, and damage to the passengers in the automobile is reduced when the side of the automobile collides.
Drawings
The contents of the drawings and the marks in the drawings of the present specification are briefly described as follows:
FIG. 1 is a schematic side elevational view of the distal airbag after deployment in a vehicle;
FIG. 2 is a schematic view of the rear structure of the distal airbag after deployment in a vehicle;
FIG. 3 is a schematic elevational view of the distal balloon after deployment;
FIG. 4 is a schematic side elevational view of the distal balloon after deployment;
FIG. 5 is a schematic view in section A-A of the distal balloon after deployment;
FIG. 6 is a schematic view in section B-B of the distal balloon after deployment;
the labels in the above figures are:
1. 1-1 parts of air bag structures, 11 parts of air bags, 12 parts of first air bags, 13 parts of second air bags, 14 parts of third air bags, 14 parts of air generators, 2 parts of sheet metal brackets, 3 parts of ceilings, 4 parts of ceilings and pull belts.
Detailed Description
The following detailed description of the invention refers to the accompanying drawings, which illustrate preferred embodiments of the invention in further detail.
The roof airbag structure comprises a gas bag 1-1, wherein a gas generator 14 is arranged in the gas bag 1-1; the roof airbag structure 1 disclosed by the invention is arranged in a roof area, can be opened when the side of an automobile collides in the actual use process, and is used for isolating a cab from a co-cab, so that the side impact of passengers in the cab and the co-cab is buffered and protected, and the damage of the passengers in the automobile is reduced when the side of the automobile collides.
The invention mainly discloses a roof airbag structure 1, wherein a gas bag 1-1 is the main body of an airbag, the material of the gas bag 1-1 can be made of traditional airbag materials, meanwhile, a gas generator 14 is arranged in the gas bag 1-1, the gas generator 14 belongs to the conventional component structure in the existing airbag, and the gas generator belongs to the prior art and is not repeated here; the present invention is first achieved by arranging the airbag structure 1 above the roof of the vehicle and requiring the airbag to be deployed in the region between the primary and secondary driver's seats; when the vehicle body is inflated, the air bag is opened to play a good role in isolation and buffering, one is used for avoiding collision among passengers, and the other is used for avoiding motion collision caused by excessive lateral movement of the passengers and other parts in the vehicle body.
Specifically, the gas bag 1-1 in the present invention includes a first gas bag 11, a second gas bag 12, and a third gas bag 13; the air bag 1-1 of the invention is composed of three parts, and the air bag of the three parts has additional functions besides realizing basic buffering function, the first air bag 11 plays a longitudinal isolation function and is mainly used for isolating a cab and a copilot; meanwhile, the arrangement and placement of the second air bag 12 and the third air bag 13 are facilitated; in addition, the second air bag 12 plays a role in fastening and expanding, when the second air bag 12 is unfolded, the second air bag is extruded with the side face of the seat 5, so that the whole side face of the air bag 1-1 is supported, the air bag 1-1 is prevented from shifting after a person hits the air bag 1-1, in addition, the third air bag 13 plays a good role in buffering and supporting, a person in collision can be contacted conveniently and quickly, the buffering distance is increased, and the buffering effect is better achieved; in addition, in the present invention, the first air bag 11 is provided with a first communication hole 12-1; the third air bag 13 is provided with a second communication hole 13-1; by the arrangement of the first communication hole 12-1 and the second communication hole 13-1, communication among the first air bag 11, the second air bag 12 and the third air bag 13 is realized; in addition, the invention has special use in addition to simple communication, the communication mode between the air bags of the invention; specifically, the optimization of the product use effect is performed by limiting the flow direction of the gas when the first air bag 11, the second air bag 12 and the third air bag 13 work, wherein the first air bag 11 is communicated with the second air bag 12 through a first communication hole 12-1, and the second air bag 12 is communicated with the third air bag 13 through a second communication hole 13-1; a gas generator 14 is arranged in the first gas bag 11; because of the above design, when the automobile collides, the gas generator 14 works to supply gas into the first gas bag 11, so that the first gas bag 11 is inflated and opened, the gas is transferred to the second gas bag 12 through the first communication hole 12-1 along with continuous gas supply in the first gas bag 11, so that the inflation and opening of the second gas bag 12 are realized, and similarly, the gas in the second gas bag 12 continuously moves into the third gas bag 13 along with the flow of the gas in the second gas bag 12, so that the opening of the third gas bag 13 is realized; the invention can realize the continuous opening of the first air bag 11, the second air bag 12 and the third air bag 13 by the gas flow mode; the device is convenient for normal use, and the problem that operation interference among parts is easily caused by one-time opening of each air bag is avoided.
Further, in the present invention, the first air bag 11 is arranged in the longitudinal direction; the first air bag 11 longitudinally arranged plays a good longitudinal separation role, and simultaneously, the second air bag 12 is convenient to be pressed with the side surface of the automobile seat 5 when being opened, and in addition, the third air bag 13 is distributed outside the first air bag 11 in the invention; the second air bags 12 are distributed outside the lower end of the first air bag 11; the third air bag 13 is positioned above the second air bag 12; through the arrangement, the air bag can be buffered and fixed without motion interference, and meanwhile, the air bag can be divided and fixed in the use process, and the effect of rear buffering is achieved, so that the air bag structure 1 can be prevented from swinging while protection is achieved.
In addition, in the invention, the third air bag can be used for pressing the side surface of the headrest at the upper part of the seat, and the second air bag can be used for pressing the side surface of the seat, so that the stability of the installation between the air bag and the seat can be ensured through the arrangement mode.
Further, in the present invention, the third air bag 13 includes two monomer air bags 13-11, and the two monomer air bags 13-11 are respectively distributed on two opposite side surfaces of the first air bag 11; the two monomer air bags 13-11 can support passengers on the cab and the co-cab, so that the buffer of the passengers is ensured; in addition, in the invention, the monomer air bags 13-11 are arranged in the upper area of the middle part of the first air bag 11, so that the head and the neck of an occupant can be limited, and the head of the occupant is prevented from deviating and swinging along the Y direction; the monomer air bags are required to be arranged in the area, close to the upper part, of the first air bags, so that the transverse offset of the air bags during collision can be reduced; because the third air bag is larger in transverse width in the subsequent use, people in a main driving position and a co-driving position can be isolated when the side collision actually occurs, and the third air bag is generally impacted firstly when an occupant impacts the air bag, so that the third air bag is closer to a connecting point between the first air bag and a roof when the third air bag is arranged above the first air bag, and the moment arm is smaller; thereby reducing the connection between the first pocket and the roof of the vehicle from having greater stress.
Further, in the present invention, the first air bag 11 includes a first bag body, and the first bag body includes a first upper bag surface 111 and a first lower bag surface 113; the first upper pocket surface 111 is connected with the first lower pocket surface 113 through the first side pocket surface 112; the first side pocket 112 includes a lateral pocket body, the lateral pocket body includes an upper lateral pocket 1121 and a lower lateral pocket 1122, and the lower lateral pocket 1122 is obliquely arranged; in the present invention, the first upper bag surface 111 is the upper end surface of the first air bag 11, and the first lower bag surface 113 is the lower end surface of the first air bag 11; the first upper bag surface 111 is connected with the first lower bag surface 113 through the first side bag surface 112, the first side bag surface 112 is equivalent to 4 sides, the first upper bag surface 111, the first lower bag surface 113 and the first side bag surface 112 form a box body structure similar to a rectangle, in addition, in the invention, the first side bag surface 112 comprises 4 side bag surfaces, the 4 side bag surfaces are sequentially spliced and annularly connected to form the first side bag surface 112, when in actual arrangement, the height of each side bag surface can be selected to be consistent, the specific width can be changed according to the needs, in addition, in the invention, the side bag surface comprises an upper side bag surface 1121 and a lower side bag surface 1122, and the lower side bag surface 1122 is obliquely arranged; the upper lateral bag surface 1121 is the main body of the lateral bag surface body, and the lower lateral bag surface 1122 is obliquely arranged, one is to play the purpose of increasing the space volume at the lower end of the first air bag 11, so that the buffer of the expanding air is facilitated, meanwhile, the subsequent first communication hole 12-1 is arranged on the lower lateral bag surface 1122, when the lower lateral bag surface 1122 is obliquely arranged, the air is obliquely injected into the second air bag 12, the expansion of the second air bag 12 can be realized quickly, and the quick expansion of the second air bag 12 is facilitated.
Further, in the present invention, the monomer air bags 13-11 include a second upper bag surface 131 and a second lower bag surface 133, and the second upper bag surface 131 is connected to the second lower bag surface 133 through a second side bag surface 132; the above design is the integral structure of the monomer air bags 13-11 of the invention, and in addition, the second lower bag surface 133 is obliquely arranged in the invention; the second communication hole 13-1 is arranged on the second lower bag surface 133, so that the gas in the second gas bag 12 can enter each monomer gas bag 13-11 quickly, and the quick inflation and the opening of the monomer gas bags 13-11 are realized; in addition, the second lower bag surface is arranged in a downward single tilting mode, so that when an occupant impacts the monomer air bag, the monomer air bag is tilted and zoomed after being impacted, the contraction distance is increased, and the collision effect is optimized.
Further, in the present invention, the second lower pocket surface 133 includes a second lower inclined surface 1331 and an arc-shaped connection surface 1332, and the second lower inclined surface 1331 is connected to the second side pocket surface 132 through the arc-shaped connection surface 1332; the second lower inclined surface 1331 facilitates the arrangement and placement of the second communication hole 13-1, and in addition, the arc-shaped connecting surface 1332 plays a good transition role, so that the connection between the second lower inclined surface 1331 and the second side bag surface 132 is facilitated; meanwhile, the arrangement of the arc-shaped connecting surface plays a good role in protection, and the phenomenon that the outside of the gas bag is provided with edges is avoided, so that passengers are damaged during impact.
Further, in the present invention, the connection between the second air bag 12 and the third air bag 13 is located at the butt joint of the second lower inclined surface 1331 and the arc-shaped connection surface 1332; the arrangement ensures the connection stability of the second air bag 12 and the third air bag 13, and realizes the stable transition of the connection part of the second air bag 12 and the third air bag 13; in addition, the arrangement ensures that the second lower inclined plane is overlapped with the second air bag, thereby being beneficial to ensuring the overall structural strength of the lower part of the air bag and ensuring the stability of mutual extrusion between the air bag and the seat after the air bag is inflated.
Further, in the present invention, the corners of the first air bag 11, the second air bag 12 and the third air bag 13 are in arc-shaped surface transition; by the arrangement, edges at the edge of the gas bag 1-1 are avoided, the outer side face of the gas bag 1-1 has a certain radian, and scratch between the gas bag and the adjacent gas bag when the gas bag is expanded and unfolded are avoided.
Further, in the present invention, the first air bag 11 is connected to the monomer air bags 13-11 through the pull strap 4; the arrangement of the drawstring 4 plays a good role in connection, well ensures the integrity between the monomer air bags 13-11 and the first air bag 11, and avoids the sagging of the monomer air bags 13-11 due to gravity.
Further, in the present invention, the first air bag 11 is provided with a plurality of first communication holes 12-1; the third air bag 13 is provided with a plurality of second communication holes 13-1; the number of the first communication holes is larger than that of the second communication holes; by the arrangement, the air inflow of the first air bag 11 into the second air bag 12 is larger than the air inflow of the second air bag 12 into the third air bag 13, so that the air in the second air bag 12 is prevented from entering the third air bag 13 too quickly, and the use and fixation of the whole air bag structure 1 are prevented.
Specifically, the method comprises the following steps;
the invention discloses a roof airbag structure 1, in particular to a far-end passenger protection airbag device, which comprises a gas bag 1-1, a gas generator 14, a mounting bracket and other parts; the gas bag 1-1 has a 6s pressure maintaining function, and meets the requirement of the internal pressure maintaining performance of the gas curtain in CNCAP procedure evaluation.
The inflatable bag comprises a first air bag 11, a second air bag 12 and a third air bag 13 according to the inflation sequence, wherein the first air bag 11 forms a first-stage chamber, the second air bag 12 forms a second-stage chamber, and the third air bag 13 forms a third-stage chamber; the gas generator 14 is inserted into the gas bag to inflate the gas bag 1-1; the gas bag 1-1 and the gas generator 14 are fixed on a mounting bracket which is fixed on a roof beam sheet metal; the mounting bracket can be a beam structure and mainly plays a bridging role.
When the vehicle collides with the side surface, the calibration signal of the air bag controller reaches a threshold value, an ignition instruction is sent, and the air bag is detonated; according to the unique bag type design of the air bag, the primary cavity is unfolded in place instantly, the secondary cavity begins to be inflated again, and the front row driver and the seat back of the seat 5 clamp the air bag to prevent the air bag from rotating around the Z direction and moving along the Y direction of a vehicle; the mounting bracket limits the X-direction movement of the air bag vehicle; the upper part of the first-stage chamber is sewed with the third-stage chamber through a drawstring 4, so that the stability of the air bag unfolding is improved. The opening at the bottom of the first-stage chamber is communicated with the second-stage chamber, gas reaches the bottom of the first-stage chamber, enters the second-stage chamber for inflation, and simultaneously, gas also enters the third-stage chamber for inflation; after the air bag is completely unfolded, the front row driver and passengers are separated, the seat 5 and the mounting bracket play a role in fixing the air bag, and the inclination of the trunk on the passengers is prevented, so that the protection of the head, the neck and the shoulders is realized, and the protection of the far-end passengers on the collision side is realized.
The safety airbag can effectively solve the defects of insufficient support and unsatisfied protection area of the safety airbag arranged on the seat back 5 of the seat, and effectively meet the requirements of side collision accidents and regulations.
The invention relates to an air bag device which is arranged on a sheet metal of a roof beam and used for protecting a far-end passenger, and is suitable for a front row of a vehicle.
Through the unique design and the fixed mode of air bag type, prevent the upper torso of passenger to incline to the collision side, prevent the mutual collision between the passenger, realize the protection to passenger's head, neck, shoulder.
The airbag realizes the far-end protection of front row drivers and passengers, is not limited by the side impact side of the vehicle, and can cover the front-back and up-down adjustment travel of the seat 5; when the vehicle collides with the side surface, the calibration signal of the air bag controller exceeds the ignition threshold value and sends an ignition instruction, and the air bag can be instantaneously ignited; the first-stage chamber is rapidly unfolded to the lowest end, the second-stage chamber starts to be inflated, and the second-stage chamber covers the lower position of the shoulder axle center of the passenger, so that the shoulder is effectively supported; the three-stage chamber is inflated to support the head, so that the head is prevented from tilting, and the neck injury value is reduced; the three chambers act sequentially to prevent the upper trunk of the far-end passenger from excessively tilting towards the collision side, so that the protection of the far-end passenger at the collision side is realized, and the legal requirement of European Euro NCAP new vehicle evaluation standards on the protection of the far-end passenger can be met.
The airbag structure 1 of the present invention has a contracted folded state and an inflated state, and the following description will explain the inflation state of the distal airbag.
The invention discloses an airbag structure 1, which mainly comprises a first airbag 11, a second airbag 12 and a third airbag 13; namely, it comprises a primary chamber, a secondary chamber, a tertiary chamber, an outer tie 4, a first communication hole 12-1, a second communication hole 13-1, and a gas generator 14.
The gas bag 1-1 is provided with three chambers according to the inflation sequence, each chamber is sewn by cloth pieces, and communication holes are formed at specified positions for communication.
A first communication hole 12-1 is formed between the first-stage chamber and the second-stage chamber, and a second communication hole 13-1 is formed between the second-stage chamber and the third-stage chamber; the external drawstring 4 is obliquely arranged on the upper part of the primary chamber and the upper part of the tertiary chamber for stitching.
The air bag structure 1 is arranged on a roof sheet metal beam through a sheet metal bracket 2, and a weakening structure such as a tearing line is arranged at the corresponding position of an air bag on a ceiling 3 in a bolt or clamping mode.
When the vehicle collides with the side surface, the air bag controller sends out an ignition command, the gas generator 14 is exploded, the air bag is rapidly inflated, and the tearing line of the ceiling 3 is broken; the first-stage cavity is filled up firstly and unfolded to the side of a driver and a passenger; then the air enters a secondary chamber through a first communication hole 12-1, the secondary chamber expands to be contacted and extruded with the seat 5, and the secondary chamber is fixed between the back of the seat 5; simultaneously, the third-stage chamber starts to be inflated under the action of the second communication hole 13-1, and the inclined pull belt 41d prevents the Y-direction movement of the second-stage chamber; after the air bag is fully unfolded, the second-stage chamber provides effective Y-direction support for the shoulders of the passengers, and the third-stage chamber effectively prevents Y-direction deflection of the head and the neck.
It is obvious that the specific implementation of the present invention is not limited by the above-mentioned modes, and that it is within the scope of protection of the present invention only to adopt various insubstantial modifications made by the method conception and technical scheme of the present invention.
Claims (9)
1. The roof airbag structure is characterized by comprising a gas bag, wherein a gas generator is arranged in the gas bag;
the gas bag comprises a first gas bag, a second gas bag and a third gas bag;
the first air bag is provided with a first communication hole; the third air bag is provided with a second communication hole;
the first air bag is communicated with the second air bag through the first communication hole, and the second air bag is communicated with the third air bag through the second communication hole;
a gas generator is arranged in the first air bag; the gas bag is positioned in the area between the main driver seat and the auxiliary driver seat when being unfolded;
when the automobile collides, the gas generator works and supplies gas into the first gas bag so that the first gas bag expands and opens, the gas is transferred to the second gas bag through the first communication hole along with continuous gas supply in the first gas bag, so that the expansion and the opening of the second gas bag are realized, and the gas in the second gas bag continuously moves into the third gas bag along with the flow of the gas in the second gas bag, so that the opening of the third gas bag is realized;
the first air bag, the second air bag and the third air bag are continuously opened;
the third air bag is propped against the side surface of the headrest at the upper part of the seat, and the second air bag is propped against the side surface of the seat;
the first air bag comprises a first bag body, and the first bag body comprises a first upper bag surface and a first lower bag surface; the first upper bag surface is connected with the first lower bag surface through the first side bag surface;
the first side bag surface comprises a lateral bag surface body, the lateral bag surface body comprises an upper lateral bag surface and a lower lateral bag surface, and the lower lateral bag surface is obliquely arranged; the first communication hole is arranged on the lower bag surface;
the lower side is obliquely arranged on the bag surface, so that gas is obliquely injected into the second air bag, the expansion of the second air bag is rapidly realized, and the rapid opening of the second air bag is realized.
2. A roof airbag arrangement according to claim 1, characterized in that the first airbag is arranged in a longitudinal direction; the third air bags are distributed outside the first air bags; the second air bags are distributed outside the lower end of the first air bag; the third air pocket is above the second air pocket.
3. A roof air bag structure according to claim 2, wherein said third air bag comprises two single air bags, said single air bags being respectively disposed on opposite side surfaces of said first air bag.
4. A roof air bag structure according to claim 3, wherein said single air bag comprises a second upper bag face and a second lower bag face, said second upper bag face being connected to said second lower bag face by a second side bag face; the second lower pocket face is obliquely arranged.
5. The roof airbag structure of claim 4, wherein the second lower pocket surface includes a second lower inclined surface and an arcuate connecting surface, the second lower inclined surface being connected to the second side pocket surface by the arcuate connecting surface.
6. The roof airbag structure of claim 5, wherein the second and third airbag connections are at the interface of the second lower incline and the arcuate connection.
7. A roof air bag structure according to any one of claims 1 to 6 wherein the corners of the first, second and third air bags are curved.
8. A roof air bag structure according to claim 3, wherein the first air bag is connected to the monomer air bag by a drawstring.
9. The roof airbag structure according to claim 1, wherein the first airbag is provided with a plurality of first communication holes; the third air bag is provided with a plurality of second communication holes; the number of the first communication holes is larger than the number of the second communication holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210900378.1A CN115056742B (en) | 2022-07-28 | 2022-07-28 | Roof airbag structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210900378.1A CN115056742B (en) | 2022-07-28 | 2022-07-28 | Roof airbag structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115056742A CN115056742A (en) | 2022-09-16 |
| CN115056742B true CN115056742B (en) | 2023-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210900378.1A Active CN115056742B (en) | 2022-07-28 | 2022-07-28 | Roof airbag structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115056742B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN115056742A (en) | 2022-09-16 |
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