CN116572879A - Front bumper system and vehicle - Google Patents
Front bumper system and vehicle Download PDFInfo
- Publication number
- CN116572879A CN116572879A CN202310640298.1A CN202310640298A CN116572879A CN 116572879 A CN116572879 A CN 116572879A CN 202310640298 A CN202310640298 A CN 202310640298A CN 116572879 A CN116572879 A CN 116572879A
- Authority
- CN
- China
- Prior art keywords
- front bumper
- limiting
- air bag
- airbag
- claw
- 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.)
- Pending
Links
- 210000000078 claw Anatomy 0.000 claims abstract description 26
- 238000012806 monitoring device Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000000452 restraining effect Effects 0.000 claims 4
- 230000006378 damage Effects 0.000 description 6
- 210000002414 leg Anatomy 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 208000014674 injury Diseases 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010019196 Head injury Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
-
- 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
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
- B60R21/36—Protecting non-occupants of a vehicle, e.g. pedestrians using airbags
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
The invention discloses a front bumper system and a vehicle, and belongs to the technical field of pedestrian protection of vehicles. The front bumper system includes: the front bumper cover is positioned at the lower side of the engine cover, and the air bags and the air bag limiting devices are positioned at the front bumper cover and the inner side of the engine cover; the airbag limit device includes: the limiting base is fixed on the front bumper bracket, and an air bag limiting part for limiting the rear side position of the air bag is arranged on one side of the limiting base away from the front bumper skin; the at least one limiting claw is pivotally connected to the limiting base through a shaft rod; in the initial state, the limiting claw is abutted against the front side area of the air bag and limits the front side position of the air bag; when the air bag is in an inflated state, the limiting claw rotates in a direction approaching the front bumper skin under the pushing of the inflated air bag, so that the air bag extends out along a gap between the engine cover and the front bumper skin and is exposed on the front side of the front bumper skin. The invention realizes good protection of the legs of pedestrians.
Description
Technical Field
The invention relates to the technical field of pedestrian protection of automobiles, in particular to a front bumper system with a pedestrian protection airbag and an automobile.
Background
In road traffic accidents, which are due in large part to collisions between vehicles and pedestrians, the risk of injury to the pedestrians is high, especially if the pedestrians are impacted into the front of the vehicle. Currently, front bumpers for automobiles are often designed to prevent mechanical damage to the vehicle and to reduce injury to passengers within the vehicle. However, the stiffness and rigidity of the front bumper increases the degree of injury to the pedestrian upon impact.
In order to protect pedestrians in collisions, a more efficient method is needed to reduce the risk of injury to pedestrians in an automobile accident. In this case, the use of pedestrian protection airbags for automobiles has become an effective way to solve the problem of pedestrian injury. At present, the pedestrian protection airbag is mostly applied to parts such as engine covers, A columns and C columns of automobiles. The main research direction of pedestrian protection airbags is more to protect the waist of pedestrians, but pedestrian protection airbags for protecting the legs and knees of pedestrians are lacking. Such as an active hood, also to reduce pedestrian head injuries. While the front bumper of the automobile is positioned at the leg position of the pedestrian, the airbag deployed in the space will have good protection for the leg of the pedestrian. Based on this, the present invention has been proposed.
Disclosure of Invention
To this end, the present invention provides a front bumper system capable of well protecting the legs of a pedestrian.
Aiming at the technical problems, the invention provides the following technical scheme:
a front bumper system comprising: the front bumper skin is positioned at the lower side of the engine cover and is connected to the front side of the front bumper bracket; an air bag positioned at the inner sides of the front bumper skin and the engine cover and an air bag limiting device; the airbag spacing device includes: the limiting base is fixed on the front bumper bracket, and an air bag limiting part for limiting the rear side position of the air bag is arranged on one side of the limiting base away from the front bumper skin; the limiting claw is pivotally connected to the limiting base through a shaft rod; in the initial state, the limiting claw is abutted against the front side area of the air bag and limits the front side position of the air bag; when the air bag is in an inflated state, the limiting claw rotates in a direction approaching to the front bumper skin under the pushing of the inflated air bag, so that the air bag extends out along a gap between the engine cover and the front bumper skin and is exposed on the front side of the front bumper skin.
In some embodiments of the present invention, the limiting base is provided with a plurality of pairs of pivot connection seats arranged oppositely at intervals, the pivot connection seats are provided with connection holes, a shaft rod penetrating through the connection holes is arranged between each pair of pivot connection seats, and two limiting claws rotatably connected to the shaft rod are arranged between each pair of pivot connection seats.
In some embodiments of the present invention, an elastic member is further disposed between each pair of pivot connection seats, and the elastic member acts on the two limiting jaws, so that the limiting jaws are adapted to abut against the front side portion region of the airbag in an initial state.
In some embodiments of the present invention, the limiting jaw includes: a pivot main body rotatably connected to the shaft lever, and a claw limiting part connected to the pivot main body; the claw limiting part extends along the horizontal direction and is abutted against the front side part area of the air bag.
In some embodiments of the present invention, the jaw limiting portion includes a first limiting rod connected to the first side of the pivoting main body, and a second limiting rod connected to the second side of the pivoting main body, where the first limiting rod and the second limiting rod adjacent to the limiting jaw are sequentially connected.
In some embodiments of the present invention, a coverage area of the jaw limiting parts of the limiting jaws along the horizontal direction is greater than or equal to a length of the airbag along the horizontal direction.
In some embodiments of the present invention, the limiting base is bent upward at a side away from the front bumper skin to form the airbag limiting portion.
In some embodiments of the present invention, the bending angle of the limiting base at a side area away from the front bumper skin is between 30 ° and 60 °.
The invention also provides a vehicle comprising the front bumper system and an airbag inflation control system.
In some embodiments of the present invention, the airbag inflation control system includes a collision monitoring device, an inflator connected to the airbag, and a controller that controls whether the inflator is activated or not according to a detection signal of the collision monitoring device to control inflation of the airbag.
Compared with the prior art, the technical scheme of the invention has the following technical effects:
according to the front bumper system and the vehicle, the air bags and the air bag limiting devices are arranged on the inner sides of the front bumper skin and the engine cover, when the vehicle collides, the air bags can extend out of gaps between the front bumper skin and the engine cover and spread out of the vehicle by controlling air inflation of the air bags, the purpose of covering the lower portion of the front bumper skin of the vehicle is finally achieved, and the front bumper system has a good protection effect on legs of pedestrians. Simultaneously, the airbag limiting device carries out initial limiting on the airbag through the limiting claw which is pivotally connected to the limiting base, the limiting claw can be pulled to conveniently replace the disposable airbag, and the airbag limiting device has the advantages of simple structure, convenient operation, repeated utilization and good maintenance economy
Drawings
The objects and advantages of the present invention will be better understood by describing in detail preferred embodiments thereof with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural view of one embodiment of a front bumper system according to the present invention;
FIG. 2 is a schematic view of an embodiment of an air bag restraint in a front bumper system in accordance with the present invention;
FIG. 3 is a side cross-sectional view of one embodiment of a front bumper system according to the present invention;
FIG. 4 is a side cross-sectional view of the front bumper system of the present invention in an airbag deployment condition;
fig. 5 is a system configuration diagram of the airbag inflation control system of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Referring now to fig. 1, there is shown an embodiment of the front bumper system of the present invention, comprising a front bumper bracket 9 and a front bumper skin 12 attached to the front side thereof, the front bumper skin 12 being located on the underside of the hood 11; an airbag 7 positioned inside the front bumper cover 12 and the hood 11, and an airbag stopper a; the airbag limit device A comprises: a limiting base 3 detachably connected to a front bumper bracket 9 through a fastener 6 and at least one limiting claw 4, wherein the limiting base 3 is provided with an air bag limiting part 32 for limiting the rear side position of an air bag 7 at one side far away from a front bumper skin 12, and the limiting claw 4 is pivotally connected to the limiting base 3 through a shaft lever 1; in the initial state, the limiting claw 4 is abutted against the front side area of the air bag 7 and limits the front side position of the air bag 7; when the airbag 7 is in an inflated state, the limiting jaw 4 is pushed by the inflated airbag 7 to rotate in a direction approaching the front bumper skin 12, so that the airbag 7 extends out along a gap between the engine cover 11 and the front bumper skin 12 and is exposed to the front side of the front bumper skin 12.
In the front bumper system, since the airbag 7 and the airbag limiting device a are arranged on the inner sides of the front bumper skin 12 and the engine cover 11, when a vehicle collides, the airbag 7 can be extended out of the gap between the front bumper skin 12 and the engine cover 11 by controlling the inflation of the airbag 7, and the vehicle is unfolded outwards, so that the purpose of covering the lower part of the front bumper skin 12 of the vehicle is finally achieved, and the front bumper system has a good protection effect on the legs of pedestrians. Simultaneously, gasbag stop device A through pivot connect in spacing jack catch 4 on spacing base 3 carries out spacingly to gasbag 7, and its accessible pulls spacing jack catch 4, conveniently changes disposable gasbag 7, easy and simple to handle and gasbag stop device A can realize reuse.
Specifically, the manner in which the limiting jaw 4 is pivotally connected to the limiting base 3 is not unique; in an alternative embodiment, the limiting base 3 is provided with a plurality of pairs of pivot connection seats 31, that is, each pair of pivot connection seats 31 are oppositely arranged at intervals; the pivot connecting seats 31 are provided with connecting holes, and a shaft lever 1 penetrating through the connecting holes is arranged between each pair of pivot connecting seats 31; more specifically, a limit sleeve is disposed at one end of the shaft rod 1, a thread is disposed at the end of the other end, and the shaft rod 1 and the pivot connection seats 31 are connected and fixed by a nut 2 connected to the shaft rod 1, and two limit claws 4 rotatably connected to the shaft rod 1 are disposed between each pair of pivot connection seats 31. In another alternative embodiment, the limiting base 3 is provided with a plurality of pivot connection seats 31 arranged in pairs, the shaft lever 1 is rotatably connected to the pivot connection seats 31, and the limiting claw 4 is fixedly connected to the shaft lever 1.
Specifically, in an alternative embodiment, an elastic element 5 is further disposed between each pair of pivot connection seats 31, and the elastic element 5 acts on the two limiting jaws 4, so that the limiting jaws 4 have a pre-tightening force acting on the air bag 7, and the limiting jaws 4 are adapted to be abutted against the front side portion area of the air bag 7 in an initial state. The elastic piece 5 is a torsion spring sleeved on the shaft lever 1, one side support arm of the torsion spring is abutted on the limiting base 3, the other side support arm acts on the limiting claw 4, and the limiting claw 4 is abutted on the front side part area of the air bag 7.
In an alternative embodiment, the limiting jaw 4 comprises a pivoting body 41 rotatably connected to the shaft 1, and a jaw limiting portion 42 connected to the pivoting body 41; the claw limiting portion 42 extends in the horizontal direction and abuts against the front side portion region of the airbag 7. By adopting the claw limiting part 42 extending along the horizontal direction, the contact area with the air bag 7 can be enlarged, the acting force born by each part of the air bag 7 is more uniform, the air bag 7 is inflated uniformly, and the extension reliability is higher.
More specifically, the pivoting body 41 has a first side and a second side that are disposed opposite to each other, the jaw limiting part 42 includes a first limiting rod 42a connected to the first side of the pivoting body 41, and a second limiting rod 42b connected to the second side of the pivoting body 41, and the first limiting rods 42a and the second limiting rods 42b of adjacent limiting jaws 4 are sequentially connected to each other, so that the jaw limiting parts 42 of a plurality of limiting jaws 4 form a long rod body extending horizontally, and it is ensured that the jaw limiting parts can cooperatively move when the airbag 7 deploys so as to match the airbag 7 extending a certain length in the horizontal direction, and finally the area of the inflated airbag 7 that can cover the front side area of the vehicle is larger.
In order to ensure that the airbag 7 receives the same limiting force of the limiting jaw 4 in each area along the horizontal direction, the coverage area of the jaw limiting parts 42 of a plurality of limiting jaws 4 along the horizontal direction is larger than or equal to the length of the airbag 7 along the horizontal direction.
Specifically, in an alternative embodiment, the limiting base 3 is a plate body structure, and is integrally bent upwards at a side far away from the front bumper skin 12 to form the air bag limiting portion 32, and the air bag 7 is located in an arc bending area between the air bag limiting portion 32 and the limiting base 3. The airbag restraint portion 32 is used to restrain the initial position of the airbag 7, and to guide the inflated airbag 7 so that the airbag 7 is deployed outside the vehicle along the surface defined by the airbag restraint portion through the gap between the front bumper cover 12 and the hood 11.
Specifically, the bending angle of the limit base 3 in a side area away from the front bumper skin 12 is between 30 ° and 60 °. The angle between the extending surface of the air bag limiting part 32 and the extending surface of the engine cover 11 is 80-95 degrees, so that better guiding effect on the air bag 7 can be realized.
The present invention also provides a specific embodiment of a vehicle having the front bumper system and an airbag inflation control system including the collision monitoring apparatus 100, the inflator 200 connected to the airbag 7, and the controller 300. When the collision monitoring device 100 detects that a collision occurs, a signal is transmitted to the controller 300, the controller 300 sends an instruction to enable the inflator 200 to rapidly inflate the air bag 7, and when the pressure of the air bag 7 borne by the limiting jaw 4 is larger than the pretightening force exerted on the elastic piece 5 by the air bag 7, the limiting jaw 4 is pushed away by the air bag 7 and rotates around the shaft lever 1, so that the air bag 7 is inflated and deployed.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While obvious variations or modifications are contemplated as falling within the scope of the present invention.
Claims (10)
1. A front bumper system, comprising:
the front bumper skin is positioned at the lower side of the engine cover and is connected to the front side of the front bumper bracket;
an air bag positioned at the inner sides of the front bumper skin and the engine cover and an air bag limiting device; the airbag spacing device includes:
the limiting base is fixed on the front bumper bracket, and an air bag limiting part for limiting the rear side position of the air bag is arranged on one side of the limiting base away from the front bumper skin;
the limiting claw is pivotally connected to the limiting base through a shaft rod; in the initial state, the limiting claw is abutted against the front side area of the air bag and limits the front side position of the air bag; when the air bag is in an inflated state, the limiting claw rotates in a direction approaching to the front bumper skin under the pushing of the inflated air bag, so that the air bag extends out along a gap between the engine cover and the front bumper skin and is exposed on the front side of the front bumper skin.
2. The front bumper system of claim 1, wherein the limiting base is provided with a plurality of pairs of pivot connecting seats arranged oppositely at intervals, the pivot connecting seats are provided with connecting holes, a shaft rod penetrating through the connecting holes is arranged between each pair of pivot connecting seats, and two limiting claws rotatably connected to the shaft rod are arranged between each pair of pivot connecting seats.
3. A front bumper system according to claim 2, wherein between each pair of pivot connection seats there is also provided an elastic member acting on said two limit jaws adapted to bring them in initial condition against the front side portion area of the air-bag.
4. A front bumper system in accordance with claim 1, wherein said limit jaw comprises: a pivot main body rotatably connected to the shaft lever, and a claw limiting part connected to the pivot main body; the claw limiting part extends along the horizontal direction and is abutted against the front side part area of the air bag.
5. The front bumper system of claim 4, wherein the pawl stop includes a first stop lever coupled to the first side of the pivoting body and a second stop lever coupled to the second side of the pivoting body, the first stop lever and the second stop lever adjacent the pawl being sequentially connected.
6. The front bumper system of claim 5, wherein the horizontally covered area of the jaw restraining portions of the restraining jaw is greater than or equal to the horizontally length of the air bag.
7. The front bumper system of claim 1, wherein the restraining base is folded upward on a side away from the front bumper skin to form the air bag restraining portion.
8. The front bumper system of claim 7, wherein the limit mount has a fold angle of between 30 ° and 60 ° in a region of the side remote from the front bumper skin.
9. A vehicle comprising the front bumper system of any one of claims 1-8 and an airbag inflation control system.
10. A vehicle according to claim 9, wherein the airbag inflation control system includes a collision monitoring device, an inflator connected to the airbag, and a controller that controls whether the inflator is activated or not in accordance with a detection signal of the collision monitoring device to control inflation of the airbag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310640298.1A CN116572879A (en) | 2023-05-31 | 2023-05-31 | Front bumper system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310640298.1A CN116572879A (en) | 2023-05-31 | 2023-05-31 | Front bumper system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116572879A true CN116572879A (en) | 2023-08-11 |
Family
ID=87535718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310640298.1A Pending CN116572879A (en) | 2023-05-31 | 2023-05-31 | Front bumper system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116572879A (en) |
-
2023
- 2023-05-31 CN CN202310640298.1A patent/CN116572879A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10266145B2 (en) | Frontal airbag assemblies | |
| CN105818777B (en) | Vehicle oblique collision absorbing system | |
| US10870408B2 (en) | Airbag device for a motor vehicle, and airbag cushion for an airbag device | |
| CN106965766B (en) | Vehicle oblique collision absorbing system | |
| AU2002309608B2 (en) | Apparatus and method for folded curtain air-bag | |
| CN109421647A (en) | Airbag for a vehicle | |
| JP7300558B2 (en) | Inflatable airbag assembly for vehicle seating positions equipped with utility components | |
| JP2015509880A (en) | Active hood or bonnet system for vehicles | |
| US9457762B2 (en) | Active hood front cover for pedestrian protection | |
| EP3758984B1 (en) | Vehicle seat with an adjustable headrest and integrated rear seat airbag | |
| EP1750970A2 (en) | Crash appropriate vehicle partition | |
| KR101931125B1 (en) | Airbag apparatus of vehicle | |
| CN115210113A (en) | Motor vehicle part expansion system for absorbing impacts in the event of an imminent collision | |
| JP3767497B2 (en) | Vehicle occupant knee protection device | |
| US6305711B1 (en) | Vehicle safety apparatus including movable inflatable occupant protection device | |
| CN116572879A (en) | Front bumper system and vehicle | |
| US6464252B1 (en) | Vehicular impact protection device | |
| CN112236337B (en) | Distal airbag | |
| CN107380113A (en) | A kind of vertical depression formula automotive airbag | |
| US6886853B2 (en) | Air bag system for protecting the knees of a driver | |
| CN108860047B (en) | Automobile knee airbag device | |
| CN218577693U (en) | Vehicle air bag assembly and vehicle | |
| JP7186746B2 (en) | Occupant lower limb restraint system | |
| CN105150994B (en) | Bag module, Vehicular seat device and automobile | |
| CN109955821A (en) | Automotive Safety Air Bags and vehicle with it |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |