KR20240048286A - Side air bag - Google Patents

Abstract

The present invention relates to a side airbag that protects passengers by supporting an airbag cushion with a seatback and a seat cushion. In the present invention, one end is connected to the seatback, and the other end is connected to the seat cushion to form a horizontal space between the seatback and the seat cushion. A side airbag consisting of an airbag cushion that is deployed in a blocking shape is introduced.

Description

Side air bag {Side air bag}

The present invention relates to a side airbag that protects passengers by supporting the airbag cushion with a seatback and a seat cushion.

The center side airbag is deployed in the vertical direction between the driver and the passenger, and prevents collisions between passengers as well as secondary collisions by having the cushion supported by the center console or between the driver and passenger.

However, in electric vehicles where the center console is removed or moving, the cushion cannot be supported by the center console.

Accordingly, when a passenger is loaded onto the cushion, the cushion rotates left and right and/or up and down based on the point where it is mounted on the seat, causing a problem that the passenger's binding force is greatly reduced.

However, although the deployment shape of the cushion can be formed using a tether, it is difficult to stably restrain the passenger with the tether alone.

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

KR 10-2012-0051279 A

The present invention was devised to solve the above-described problems, and its object is to provide a side airbag that protects passengers by supporting the airbag cushion with a seatback and a seat cushion.

The configuration of the present invention for achieving the above object includes an airbag cushion with one end connected to the seatback and the other end connected to the seat cushion and deployed in a blocking shape across the space between the seatback and the seat cushion. You can do this.

The airbag cushion may be deployed in a downwardly inclined shape from the side of the seatback toward the seat cushion.

The airbag cushion includes a first chamber deployed on the side of the seatback; It may include a second chamber that is formed in a tube shape and is developed in a downwardly inclined shape from the first chamber toward the seat cushion.

The first chamber may be developed in a shape bent at a certain angle forward with respect to the seatback.

The lower end of the first chamber may be mounted on the side of the seatback.

The constant angle may be 20 to 40 degrees.

The second chamber may be connected to the bottom of the first chamber.

The first chamber may be deployed before the second chamber.

An inflator may be connected to the first chamber to supply gas into the first chamber, and the first chamber may be in communication with the second chamber to supply gas into the second chamber.

The airbag cushion may be deployed outside the seat belt mechanism installed on the side of the seat.

A cushion cover is provided outside the seat belt mechanism, so that the airbag cushion can be folded within the cushion cover.

The airbag cushion can be deployed between seats arranged left and right.

Through the above-described problem solving means, the present invention has a shape in which both ends of the airbag cushion are fixed to the seatback and the seat cushion, respectively, so that tension is formed in the airbag cushion when the airbag is activated even in a vehicle without a center console, blocking the passenger's side. It unfolds.

Therefore, when a passenger is loaded on the airbag cushion, rotation of the airbag cushion is prevented, thereby improving the passenger's binding force.

Moreover, by only modifying the shape of the airbag cushion to support the passenger, there is no need to increase the volume of the airbag cushion or the capacity of the inflator, which reduces the cost and weight of the airbag cushion and is advantageous in terms of packaging the airbag.

Figure 1 is a diagram showing a configuration in which a side airbag according to the present invention is built into a seat cushion and a seat bag.
Figure 2 is a diagram showing a deployed state of a side airbag configured in a first embodiment according to the present invention.
Figure 3 is a diagram showing a deployed state of a side airbag configured in a second embodiment according to the present invention.
Figure 4 is a diagram for explaining a configuration for deploying a side airbag avoiding the seat belt mechanism according to the present invention.

Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the attached drawings. However, identical or similar components will be assigned the same reference numbers regardless of reference numerals, and duplicate descriptions thereof will be omitted.

The suffixes “module” and “part” for components used in the following description are given or used interchangeably only for the ease of preparing the specification, and do not have distinct meanings or roles in themselves.

In describing the embodiments disclosed in this specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed descriptions will be omitted. In addition, the attached drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed in this specification is not limited by the attached drawings, and all changes included in the spirit and technical scope of the present invention are not limited. , should be understood to include equivalents or substitutes.

Terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this specification, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Figure 1 is a diagram showing a side airbag according to the present invention in a folded state within the seat, and Figure 2 is a diagram showing a deployed state of the side airbag configured in the first embodiment according to the present invention.

Referring to the drawing, the side airbag of the present invention has one end connected to the seat bag 10 and the other end connected to the seat cushion 20 to block the space between the seat back 10 and the seat cushion 20. It is configured to include a deployed airbag cushion (100).

For example, the airbag cushion 100 is embedded in a seat cover surrounding the seatback 10 and the seat cushion 20, or is embedded inside a foam.

Accordingly, the airbag cushion 100 is not exposed to the outside in normal times, but when the airbag is activated, the airbag cushion 100 tears the tear line of the seat cover and is deployed outside the seat.

In particular, a seatback mounting point (10a) is formed in the middle portion of the side of the seatback frame, and the rear end of the airbag cushion (100) is fixed to the seatback mounting point (10a).

Additionally, a seat cushion mounting point (20a) is formed on the front side of the seat cushion frame, and the front end of the airbag cushion (100) is fixed to the seat cushion mounting point (20a).

In this way, both ends of the airbag cushion 100 are fixed to the seatback 10 and the seat cushion 20, respectively, so that when the airbag is activated, tension is formed in the airbag cushion 100 and it develops into a shape that blocks the passenger's side.

Accordingly, when a passenger is loaded on the airbag cushion 100, rotation of the airbag cushion 100 is prevented, thereby improving the passenger's binding force.

In addition, as shown in FIG. 2, the airbag cushion 100 of the present invention may be deployed in a downwardly inclined shape from the side of the seatback 10 toward the seat cushion 20.

For example, the airbag cushion 100 is formed in a rectangular shape and extends in a diagonal shape from the middle part of the side of the seat back 10 to the front part of the side of the seat cushion 20.

Accordingly, the passenger's upper body is supported on the upper part of the airbag cushion 100, and the passenger's lower body is supported on the lower part of the airbag cushion 100, thereby stably restraining the passenger's lateral movement.

Meanwhile, Figure 3 is a diagram showing a deployed state of the side airbag configured in the second embodiment according to the present invention.

Referring to the drawings, the airbag cushion 100 includes a first chamber 110 deployed forward from the side of the seatback 10; It is configured to include a second chamber 120 that is formed in a tube shape and is developed in a downwardly inclined shape from the first chamber 110 toward the seat cushion 20.

For example, the first chamber 110 is formed in a rectangular shape and extends forward from the side of the seatback 10.

In addition, the second chamber 120 has a smaller volume than the first chamber 110, and extends in a diagonal shape from the first chamber 110 to the front part of the side of the seat cushion 20.

Accordingly, the passenger's upper body is supported in the first chamber 110, and the passenger's lower body is supported in the second chamber 120, thereby stably restraining the passenger's lateral movement.

In particular, since the second chamber 120 is deployed in a tube shape with a small volume, the time required for the first chamber 110 to be deployed is greatly reduced. Therefore, it is possible to quickly secure the passenger protection area by the first chamber 110 and restrain the passenger quickly and safely.

In addition, the first chamber 110 is developed in a shape that is bent forward at a certain angle with respect to the seatback 10.

Also, the lower end of the first chamber 110 may be mounted on the side of the seatback 10.

The constant angle may be 20 to 40 degrees.

Specifically, the lower rear end portion of the first chamber 110 is mounted and fixed to the seatback mounting point 10a, and the first chamber 110 is positioned in the vertical longitudinal direction of the seatback frame with the seatback mounting point 10a as the center. It develops in a shape tilted forward.

That is, the inflator 200 is connected to the lower part of the first chamber 110, and the inflator 200 is fixed to the seatback mounting point 10a.

Accordingly, the gas provided from the inflator 200 is supplied into the first chamber 110, and the first chamber 110 begins to unfold, and then the second chamber 120 is filled with gas, and the airbag cushion 100 is opened. unfolds upward.

In particular, as the first chamber 110 is deployed in a shape bent toward the front, the passenger's head is loaded on the rear side of the first chamber 110, creating tension in the airbag cushion.

Therefore, by preventing the airbag cushion from rotating, the passenger's head is stably supported and the restraining force of the passenger is increased.

On the other hand, in the past, as the passenger's head was loaded on the front end of the airbag cushion, the airbag cushion was easily rotated by the passenger load, making it difficult to stably restrain the passenger.

And, the second chamber 120 is connected to the lower end of the first chamber 110.

For example, the rear end of the second chamber 120 is connected to the lower front end of the first chamber 110, and the front end of the second chamber 120 is fixed to the seat cushion mounting point 20a, thereby forming the second chamber ( 120) is deployed in a downward direction from the first chamber 110 toward the seat cushion mounting point 20a.

Accordingly, the passenger's lower body, including the pelvis and thigh portion, is supported in the second chamber 120, thereby stably restraining the passenger's lateral movement.

In addition, the present invention may be deployed with the first chamber 110 taking precedence over the second chamber 120.

To this end, the inflator 200 is connected to the first chamber 110 to supply gas into the first chamber 110, and the first chamber 110 is in communication with the second chamber 120 to create a second chamber ( 120) Gas may be supplied within.

That is, by deploying the first chamber 110, which has a relatively larger volume compared to the second chamber 120, first, it is possible to quickly secure a protection area for passengers and safely protect them.

Meanwhile, Figure 4 is a diagram for explaining a configuration for deploying the side airbag according to the present invention while avoiding the seat belt mechanism.

Referring to the drawings, the airbag cushion 100 may be configured to be deployed outside the seat belt mechanism 300 installed on the side of the seat.

That is, when a seat belt mechanism 300 such as a buckle 300 is installed at the bottom of the seat where the airbag cushion 100 is installed, when the airbag is activated while the seat belt is worn, the airbag cushion 100 is attached to the seat belt. It may get caught in the wrap webbing and not unfold properly.

Accordingly, by configuring the airbag cushion 100 to be deployed outside the seat belt mechanism 300, the airbag cushion 100 can be deployed normally without interference from the seat belt even when the seat belt is fastened.

Preferably, a cushion cover 400 is provided outside the seat belt mechanism 300, so that the airbag cushion 100 can be folded within the cushion cover 400.

For example, the upper surface of the cushion cover 400 is configured to be openable, or a tear line is formed on the upper surface of the cushion cover 400, and the cushion cover 400 is assembled to the outside of the buckle 300.

Then, the middle portion of the airbag cushion 100 is built into the cushion cover 400.

Accordingly, when the airbag is deployed, the airbag cushion 100 is deployed while opening the upper surface of the cushion cover 400, or is deployed outside the seat by tearing the tear line.

However, in the case of the airbag cushion 100 shown in FIG. 3, the second chamber 120 is deployed at a relatively low position, so the second chamber 120 can be deployed without interfering with the wrap webbing.

Accordingly, the cushion cover 400 may be assembled inside the buckle 300 to embed the airbag cushion 100 within the cushion cover 400, or, as described above, the airbag cushion may be attached to the seat cover covering the seat cushion 20. It can also be configured by embedding (100).

Meanwhile, the airbag cushion 100 of the present invention can be deployed between seats arranged left and right.

In other words, the airbag cushion 100 of the present invention can be deployed between the driver's seat and the inner side of the vehicle cabin or between the passenger seat and the inner side of the vehicle cabin, and can also operate as a center side airbag deployed between the driver's seat and the passenger seat.

For example, when an airbag is mounted on the driver's seat, when the airbag is activated, the airbag cushion 100 is deployed across between the seat cushion 20 and the seatback 10 on the side of the driver's seat.

Accordingly, the airbag cushion 100 is firmly supported between the seat cushion 20 and the seatback 10 even in vehicles without a center console.

Therefore, when a passenger is loaded into the airbag cushion 100, the airbag cushion 100 is prevented from rotating, thereby preventing the driver's seat passenger from moving over to the passenger seat, thereby improving the passenger's binding force.

For reference, although the driver's seat was explained above as an example, it can also be applied to the passenger seat, and thus the passenger in the passenger seat can be prevented from moving over to the driver's seat.

In this way, in the present invention, both ends of the airbag cushion 100 are fixed to the seatback 10 and the seat cushion 20, respectively, so that tension is formed in the airbag cushion 100 when the airbag is activated, forming a shape that blocks the passenger's side. It unfolds.

Accordingly, when a passenger is loaded on the airbag cushion 100, rotation of the airbag cushion 100 is prevented, thereby improving the passenger's binding force.

Moreover, by supporting the passenger by modifying only the shape of the airbag cushion 100, there is no need to increase the volume of the airbag cushion 100 or the capacity of the inflator 200, thereby reducing the cost and weight of the airbag cushion 100. This is advantageous in terms of packaging of airbags.

Meanwhile, although the present invention has been described in detail only with respect to the above-mentioned specific examples, it is clear to those skilled in the art that various variations and modifications are possible within the technical scope of the present invention, and it is natural that such variations and modifications fall within the scope of the appended patent claims. .

10: Seatback
10a: Seatback mounting point
20: Seat cushion
20a: Seat cushion mounting point
100: Airbag cushion
110: first chamber
120: Second chamber
200: inflator
300: Seat belt mechanism (buckle)
400: Cushion cover
θ: angle

Claims (12)

A side airbag comprising an airbag cushion, one end of which is connected to the seatback, the other end of which is connected to the seat cushion, and which is deployed in a blocking shape across the space between the seatback and the seat cushion. In claim 1,
The airbag cushion is a side airbag, characterized in that it is deployed in a downwardly inclined shape from the side of the seatback toward the seat cushion. In claim 1,
The airbag cushion is,
A first chamber deployed forward from the side of the seatback;
A side airbag comprising a second chamber formed in a tube shape and developed in a downwardly slanted shape from the first chamber toward the seat cushion. In claim 3,
The first chamber is a side airbag characterized in that it is deployed in a shape bent at a certain angle forward with respect to the seat bag. In claim 4,
A side airbag, characterized in that the lower end of the first chamber is mounted on the side of the seat bag. In claim 4,
A side airbag characterized in that the constant angle is 20 to 40°. In claim 3,
The second chamber is a side airbag, characterized in that it is connected to the bottom of the first chamber. In claim 3,
A side airbag, characterized in that the first chamber is deployed before the second chamber. In claim 3,
A side airbag, characterized in that an inflator is connected to the first chamber to supply gas into the first chamber, and the first chamber is in communication with the second chamber to supply gas into the second chamber. In claim 1,
The airbag cushion is a side airbag characterized in that it is deployed outside the seat belt mechanism installed on the side of the seat. In claim 10,
A side airbag, characterized in that a cushion cover is provided outside the seat belt mechanism, and the airbag cushion is folded within the cushion cover. In claim 1,
The airbag cushion is a side airbag characterized in that it is deployed between seats arranged on the left and right.

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