KR20220146020A - Exterior air-bag for vehicle - Google Patents

Abstract

According to the present invention, disclosed is an exterior airbag system which comprises: a detection sensor detecting an obstacle moved from a rear side or a lateral side of a vehicle; an airbag cushion provided to a rear frame where a door of the vehicle is mounted, expanded while the door of the vehicle is opened, and expanded to be extended to left and right directions of the vehicle during expansion; and a control unit controlling the airbag cushion to be expanded when the obstacle is detected by the detection sensor.

Description

Exterior airbag for vehicle {EXTERIOR AIR-BAG FOR VEHICLE}

The present invention relates to an external airbag for a vehicle, and more particularly, to a technology for protecting an obstacle that is provided on the roof of a vehicle and moves toward the roof in case of a front collision.

In general, automobiles are equipped with various safety devices to protect a driver and passengers in preparation for an instantaneous situation, and a representative safety device is an airbag device that directly protects the driver and passengers seated in the front seat of the vehicle. .

In such an airbag device, when a vehicle crashes, compressed gas is instantaneously injected into the airbag by the impact force, and the airbag is rapidly inflated by this compressed gas to cover the front of the driver and front passenger. Protects from objects in front.

However, the conventional airbag device as described above is a built-in airbag device that is exploded inside the vehicle, and although it can protect the occupants inside the vehicle, it has a drawback in that it cannot protect the own vehicle, the other vehicle, or the external person from colliding with the outside. In particular, it was difficult to safely protect occupants only with the built-in airbag device inside the vehicle.

The matters described as the background art above are only for improving the understanding of the background of the present invention, and should not be taken as an acknowledgment that they correspond to the prior art already known to those of ordinary skill in the art.

KR 10-1020549 B1

The present invention has been proposed to solve this problem, by mounting an airbag deployed upwardly on the front end of the roof of the vehicle, and loading the airbag provided on the front end of the roof when an obstacle moves to the roof side of the vehicle due to the impact during a front collision of the vehicle. The purpose is to protect the secondary injury of obstacles and the exterior of the vehicle.

An external airbag for a vehicle according to the present invention comprises: a first cushion embedded in the front end of a roof of a vehicle, inflated to the outside when deployed, and disposed at the top of the windshield glass in front of the vehicle or outside the front end of the roof; and a second that is connected to the first cushion and has a shape extending upward from the first cushion, and when deployed from the first cushion to the upper side of the vehicle, an external obstacle that is moved to the roof side of the vehicle due to a collision is loaded to reduce the impact cushion; including.

a cushion housing mounted on the front end of the roof of the vehicle, the upper portion being opened, and the first cushion and the second cushion being accommodated therein; and a cushion cover covering the upper portion of the cushion housing.

The cover includes a tear shim extending in the left and right direction of the vehicle, and the first cushion and the second cushion may be deployed by cutting the tear shim.

An indentation recessed toward the interior of the vehicle may be formed at the front end of the roof of the vehicle, the cushion housing may be mounted on the indentation, and the cover may cover the upper portion of the indentation.

The second cushion is folded in the cushion housing and firstly accommodated, and then the first cushion is folded and stored in the cushion housing, so that the first cushion is first deployed and then the second cushion can be deployed.

The first cushion may include a front portion disposed on the upper end of the windshield glass and a rear portion disposed on the front end portion of the roof.

The second cushion may extend upwardly between the front portion and the rear portion.

It may further include a; support cushion for supporting the second cushion by connecting the second cushion and the rear portion.

The support cushion may be deployed by being in communication with the first cushion or the second cushion, and gas is injected from the first cushion or the second cushion.

A plurality of support cushions may be disposed to be spaced apart from each other in the left and right direction of the vehicle.

One end is connected to the first cushion, the other end is connected to the second cushion or the frame of the vehicle to support the second cushion is rotated when loading with an external obstacle; may further include.

The first cushion and the second cushion are in communication with each other, and the inflator for deploying by injecting gas into the first cushion or the second cushion; may further include.

The external airbag for a vehicle according to the present invention is provided at the front end of the roof of the vehicle and extends above the first cushion and the first cushion deployed to the upper end of the windshield glass and the front end of the roof.

1 is a perspective view of an exterior airbag for a vehicle according to an embodiment of the present invention;
2 is a plan view of an exterior airbag for a vehicle according to an embodiment of the present invention;
3 is a side cross-sectional view before deployment of an exterior airbag for a vehicle according to an embodiment of the present invention;
4 is a view showing an embodiment in which a tether is mounted on an external airbag for a vehicle according to an embodiment of the present invention;
5 is a view showing an embodiment in which a support cushion is provided in an exterior airbag for a vehicle according to an embodiment of the present invention;
6 is a cross-sectional view illustrating a deployment sequence of a tether in an external airbag for a vehicle according to an embodiment of the present invention.

Specific structural or functional descriptions of the embodiments of the present invention disclosed in the present specification or application are only exemplified for the purpose of describing the embodiments according to the present invention, and the embodiments according to the present invention are implemented in various forms. and should not be construed as being limited to the embodiments described in the present specification or application.

Since the embodiment according to the present invention may have various changes and may have various forms, specific embodiments will be illustrated in the drawings and described in detail in the present specification or application. However, this is not intended to limit the embodiment according to the concept of the present invention with respect to a specific disclosed form, and should be understood to include all changes, equivalents or substitutes included in the spirit and scope of the present invention.

Terms such as first and/or second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one element from another element, for example, without departing from the scope of the present invention, a first element may be called a second element, and similarly The second component may also be referred to as the first component.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle. Other expressions describing the relationship between elements, such as "between" and "immediately between" or "neighboring to" and "directly adjacent to", etc., should be interpreted similarly.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. As used herein, terms such as “comprise” or “have” are intended to designate that an embodied feature, number, step, action, component, part, or combination thereof exists, and is intended to indicate that one or more other features or numbers are present. , it should be understood that it does not preclude the existence or addition of steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as meanings consistent with the context of the related art, and unless explicitly defined in the present specification, they are not to be interpreted in an ideal or excessively formal meaning. .

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements.

1 is a perspective view of an exterior airbag for a vehicle according to an embodiment of the present invention, FIG. 2 is a plan view of an exterior airbag for a vehicle according to an embodiment of the present invention, and FIG. 3 is the deployment of an exterior airbag for a vehicle according to an embodiment of the present invention This is a front sectional view.

A preferred embodiment of an exterior airbag for a vehicle according to the present invention will be described with reference to FIGS. 1 to 3 .

The external airbag for a vehicle according to the present invention is a first cushion that is embedded in the front end of the roof (R) of the vehicle, inflated to the outside when deployed, and disposed outside the upper end of the windshield glass (W) in front of the vehicle or the front end of the roof (R) ( 100); And it is connected to the first cushion 100 and has a shape extending upward from the first cushion 100, and is deployed from the first cushion 100 upwards of the vehicle when deployed, thereby moving toward the roof (R) side of the vehicle due to a collision. It includes a; a second cushion 200 to reduce the impact of the external obstacle is loaded.

1 to 2, the first cushion 100 is deployed at the front end of the roof (R) of the vehicle and extends in the left and right directions of the vehicle to the front end of the windshield glass (W) or the roof (R). It is deployed to cover the front end, and the second cushion 200 may be deployed above the vehicle from above the first cushion 100 .

That is, the first cushion 100 deployed at the front end of the roof R covers the front end of the roof R and the upper end of the windshield glass W, so that in the event of a frontal collision of the vehicle, the There is an effect of protecting the front end of the roof (R) and the upper end of the windshield glass (W) in preparation for obstacles flying toward the front end.

In addition, the second cushion 200 is deployed upwardly from the upper portion of the first cushion 100, and when an obstacle collided with the vehicle when a front collision accident of the vehicle occurs, the second cushion 200 moves to the roof (R) side of the vehicle. It is loaded on the vehicle to prevent secondary collisions with vehicles, preventing secondary injuries to pedestrians when the obstacle is a pedestrian, and can prevent damage to the roof (R) or windshield glass of the vehicle if the obstacle is another object. It works.

In addition, as the first cushion 100 is spread while being widely spread out to the front end of the roof R and the upper end of the windshield glass W, when the second cushion 200 comes into contact with an obstacle, the second cushion 200 is There is an effect that can support the second cushion 200 to absorb the kinetic energy of the obstacle.

In addition, there is an effect that the vehicle in the rear can recognize the occurrence of a front collision accident as it is deployed in a front collision accident and the second cushion 200 is unfolded upward, thereby preventing an additional collision accident.

A cushion housing 300 mounted on the front end of the vehicle's roof (R), the upper part of which is opened, and the first cushion 100 and the second cushion 200 are accommodated therein; and a cushion cover 400 covering the upper portion of the cushion housing 300 .

As shown in FIG. 3 , the first cushion 100 and the second cushion 200 are folded and accommodated in the cushion housing 300 mounted on the front end of the roof (R) of the vehicle to the front end of the roof (R). can be located.

The cover 400 is disposed so as to connect the upper end of the windglass and the front end of the roof R, and as it covers the upper part of the cushion housing 300, external foreign substances penetrate into the cushion housing 300 or are affected by weather. Accordingly, there is an effect that can prevent the first cushion 100 and the second cushion 200 from being damaged or contaminated.

In addition, as the cover 400 is disposed to connect the upper end of the windglass and the front end of the roof R, it is possible not to affect the appearance of the vehicle.

4 is a view showing an embodiment in which a tether 600 is mounted on an external airbag for a vehicle according to an embodiment of the present invention, and FIG. 5 is a support cushion 700 on the external airbag for a vehicle according to an embodiment of the present invention. 6 is a cross-sectional view illustrating the deployment order of the tether 600 in an external airbag for a vehicle according to an embodiment of the present invention.

The cover 400 includes a tear shim extending in the left and right direction of the vehicle, and the first cushion 100 and the second cushion 200 may be deployed by cutting the tear shim.

As shown in FIG. 6 , the cover 400 has a shape in which one side and the other side are separated into two parts connected to the windshield glass (W) and the roof (R), respectively, and the two parts are sewn to each other to form the tear shim of the vehicle. can do.

Thereafter, when the first cushion 100 and the second cushion 200 are deployed, the tear shim is cut and can be deployed upward of the vehicle.

Through this, the first cushion 100 and the second cushion 200 have an effect that can be rapidly deployed without the need for a separate cover 400 opening device.

In the front end of the roof (R) of the vehicle, an indentation portion 800 that is depressed toward the interior of the vehicle is formed, the cushion housing 300 is mounted on the indentation portion 800, and the cover 400 is the indentation portion 800 of the vehicle. It can cover the top.

As shown in FIGS. 3 and 6 , an indentation portion 800 connecting the windshield glass (W) side and the roof (R) of the vehicle is formed, and the first cushion 100 and the first cushioning portion 800 are formed in the indentation portion 800 . 2 The cushion housing 300 in which the cushion 200 is accommodated may be mounted.

Through this, the first cushion 100 and the second cushion 200 may be disposed at the front end of the roof R, and there is an effect that can be rapidly deployed when a vehicle accident occurs.

In addition, as the headlining is disposed to surround the roof R of the vehicle while covering the indentation 800 from the inside, a heterogeneous part of the interior of the vehicle can be removed.

The second cushion 200 is folded in the cushion housing 300 and received first, and then, as the first cushion 100 is folded and accommodated in the cushion housing 300, the first cushion 100 is first deployed and then the first cushion 100 is deployed. 2 cushion 200 can be deployed.

6, the cushion is folded in the cushion housing 300 to be accommodated first, and then the front part 110 and the rear part 120 of the first cushion 100 are folded in the opposite direction to the cushion. It may be folded and accommodated in the housing 300 .

Through this, when the first cushion 100 and the second cushion 200 are deployed, the first cushion 100 is deployed first, and there is an effect that the tear seam of the cover 400 can be strongly cut.

In addition, the first cushion 100 is first deployed to secure a supportable part, and then the second cushion 200 is deployed and loaded onto the obstacle moving toward the roof (R) to protect the obstacle or damage the vehicle. It has a preventable effect.

The first cushion 100 may include a front portion 110 disposed on the upper end of the windshield glass (W) and a rear portion 120 disposed on the front end of the roof (R).

The first cushion 100 is divided into a front part 110 deployed in the front of the vehicle and a rear part 120 deployed to the rear of the vehicle, and the front part 110 can cover the upper end of the windshield glass (W). And, the rear portion 120 may cover the front end of the roof (R) of the vehicle.

As the first cushion 100 is divided into the front part 110 and the rear part 120 as described above, the first cushion 100 can be rapidly deployed, and effectively the upper end and the roof of the windshield glass (W). (R) has the effect of protecting the front end.

The second cushion 200 may extend upwardly between the front part 110 and the rear part 120 .

As shown in FIG. 1 , the second cushion 200 may be supported between the front portion 110 and the rear portion 120 of the first cushion 100 . When a vehicle accident occurs, the front part 110 and the rear part 120 are first deployed in the front-rear direction of the vehicle, and then the second cushion 200 may be deployed upward of the vehicle.

Through this, the second cushion 200 is supported by the lower portion of the second cushion 200 through the front part 110 and the rear part 120, and is loaded onto an obstacle moving from the front to the roof (R) side of the vehicle. R) is prevented from bending to the side, and thus there is an effect of protecting an obstacle.

A support cushion 700 for supporting the second cushion 200 by connecting the second cushion 200 and the rear portion 120; may further include.

Although the front portion 110 and the rear portion 120 of the first cushion 100 support the second cushion 200 , the supporting force of the second cushion 200 may be insufficient. In order to prepare for this, as shown in FIG. 5 as an embodiment of the present invention, a support cushion 700 connecting the rear part 120 and the second cushion 200 is provided, and the support cushion 700 is the first cushion (100) and the second cushion 200 may be deployed together when deployed.

Through this, there is an effect that can improve the bearing capacity of the second cushion 200 by the support cushion 700 when an obstacle is loaded on the second cushion 200 in the case of a forward collision accident.

The support cushion 700 is communicated with the first cushion 100 or the second cushion 200 and gas is injected from the first cushion 100 or the second cushion 200 to be deployed.

As shown in FIG. 5 , the support cushion 700 communicates with the first cushion 100 or the second cushion 200 so that the gas of the inflator 500 can be injected, preferably the first cushion 100 . In communication with the rear portion 120 , the rear portion 120 is first deployed and then is deployed upward at the same time as the second cushion 200 , thereby directly supporting the second cushion 200 .

A plurality of support cushions 700 may be disposed to be spaced apart from each other in the left and right direction of the vehicle.

As shown in FIG. 5 , a plurality of support cushions 700 may be positioned to be spaced apart from each other in the left and right direction of the vehicle in the rear portion 120 of the second cushion 200, respectively, the first cushion 100 or the first cushion. As the second cushion 200 is communicated with and deployed, it is possible to increase the bearing capacity of the second cushion 200 when an obstacle is loaded on the second cushion 200 .

One end is connected to the first cushion 100, the other end is connected to the second cushion 200 or the frame of the vehicle to support the second cushion 200 to rotate when loading with an external obstacle tether 600; may further include.

As shown in FIG. 4 as an embodiment of the present invention, the tether 600 provided to reinforce the bearing capacity of the first cushion 100 supporting the second cushion 200 has one end of the second cushion 200 . It may be connected to the side end and the other end may be connected to the end of the front portion 110 of the first cushion 100 or connected to the frame side of the vehicle.

Through this, there is an effect that the second cushion 200 can be supported so that the obstacle is in contact with the second cushion 200 so that the second cushion 200 does not move rearward during loading.

] The first cushion 100 and the second cushion 200 communicate with each other, the first cushion 100 or the second cushion 200 inflator 500 for deploying by injecting gas; may further include .

The inflator 500 may be accommodated in the cushion housing 300 together with the first cushion 100 and the second cushion 200, and the inflator 500 receives an electrical signal from the vehicle's collision detection sensor to produce the product. The first cushion 100 and the first cushion 100 may be deployed by injecting gas into the first cushion 100 or the second cushion 200 .

At this time, the cover 400 covering the cushion housing 300 is cut due to the gas pressure of the inflator 500 , and the first cushion 100 and the second cushion 200 may be deployed to the outside.

Through this, there is an effect that a separate opening device is not required for the cover 400 when the first cushion 100 and the second cushion 200 are deployed.

Although shown and described in relation to specific embodiments of the invention, it is common in the art that the present invention can be variously improved and changed without departing from the spirit of the present invention provided by the following claims. It will be self-evident to those who have the knowledge of

100: first cushion
110: front part
120: rear
200: second cushion
300: cushion housing
400 : cover
500 : Inflator
600: Tether
700: support cushion
800: indentation

Claims (12)

a first cushion embedded in the front end of the roof of the vehicle, inflating to the outside when deployed, and disposed at the top of the windshield glass in front of the vehicle or outside the front end of the roof; and
The second cushion is connected to the first cushion and has a shape extending upward from the first cushion, and when deployed, an external obstacle that is moved to the roof side of the vehicle due to a collision is loaded by being deployed upward of the vehicle from the first cushion when deployed. Exterior airbags for vehicles, including; The method according to claim 1,
a cushion housing mounted on the front end of the roof of the vehicle, the upper portion being opened, and the first cushion and the second cushion being accommodated therein; and
The exterior airbag for a vehicle further comprising a cushion cover covering the upper side of the cushion housing. 3. The method according to claim 2,
The cover includes a tear shim extending in the left and right direction of the vehicle, and the first and second cushions are deployed by cutting the tear shim. 3. The method according to claim 2,
An exterior airbag for a vehicle, characterized in that an indentation recessed toward the interior of the vehicle is formed at the front end of the roof of the vehicle, the cushion housing is mounted on the indentation, and the cover covers an upper portion of the indentation. 3. The method according to claim 2,
An exterior airbag for a vehicle, characterized in that the second cushion is first folded and stored in the cushion housing, and then the first cushion is first deployed and then the second cushion is deployed as the first cushion is folded and stored in the cushion housing. The method according to claim 1,
An exterior airbag for a vehicle, characterized in that the first cushion includes a front portion disposed on the upper end of the windshield glass and a rear portion disposed on the front end portion of the roof. 7. The method of claim 6,
The second cushion is an exterior airbag for a vehicle, characterized in that it extends upwardly between the front portion and the rear portion. 7. The method of claim 6,
Exterior airbag for vehicle, characterized in that it further comprises; support cushion for supporting the second cushion by connecting the second cushion and the rear part. 9. The method of claim 8,
The support cushion is in communication with the first cushion or the second cushion, and gas is injected from the first cushion or the second cushion to be deployed. 9. The method of claim 8,
An external airbag for a vehicle, characterized in that a plurality of support cushions are disposed to be spaced apart from each other in the left and right directions of the vehicle. The method according to claim 1,
The tether having one end connected to the first cushion and the other end connected to the second cushion or frame of the vehicle to support rotation of the second cushion when loading with an external obstacle. The method according to claim 1,
The first cushion and the second cushion communicate with each other,
The external airbag for a vehicle, characterized in that it further comprises; an inflator for deploying by injecting gas into the first cushion or the second cushion.

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