KR20110002884U - Air bag device - Google Patents

Abstract

A first portion formed in one piece and contacting a part of a user's body; A second portion extending along an outer circumference of the first portion, the second portion being formed in a double layer; And a protective layer formed on outer surfaces of the first portion and the second portion to prevent injury to a user's body. An airbag apparatus having an airbag comprising a is disclosed. By configuring as described above, it is possible to properly seal the air flowing into the airbag, and to minimize the injury of the user.

Air bag, single layer, double layer, protective layer

Description

Air bag device {AIR BAG DEVICE}

The present invention relates to an airbag apparatus, and more particularly, to form a protective layer in the area in which the user's body is in contact, the area in which the user's body is in contact with the unit to prevent the discharge of air flowing into the airbag, thereby preventing the user's injury An airbag apparatus capable of minimizing and minimizing the fabric required to form an airbag.

In general, the vehicle is equipped with an airbag to protect the occupant in the event of a crash, so that the airbag operates when the vehicle is impacted. These airbags are largely mounted on the airbags that inflate at the front of the user and on the door side of the vehicle and are mounted to inflate at the side of the user.

If air is not properly introduced into the airbag installed for the user's safety as described above, or if the introduced air is not properly discharged, the user may be secondarily injured by the airbag after the vehicle crash, and seriously may cause death. do.

For example, the airbag may not be properly sealed, and the airbag may be discharged before the user hits the airbag, causing secondary damage. Alternatively, the airbag may not be properly discharged, and thus the user may be overexpanded. May cause secondary damage.

Therefore, in order to reduce the secondary damage as described above, there is a need for an air bag that is properly inlet and discharged while air is introduced into the air bag.

An embodiment of the present invention, by forming a protective layer in the area where the user's body is in contact with the airbag device that can properly seal the air flowing into the airbag during a collision, and adjust the rate at which the air is discharged to the outside To provide.

In addition, in one embodiment of the present invention, by forming the area hitting the user in a single layer and the peripheral portion of the single layer by forming a double layer, it is possible to reduce the volume of the air bag and to reduce the fabric for manufacturing the air bag.

In addition, in one embodiment of the present invention, by forming a predetermined space between the airbag formed in a double, by forming an air hole in each air bag, the air can be easily diffused by the air hole.

An airbag apparatus of a vehicle in which an airbag is discharged by an impact according to an embodiment of the present invention, the airbag includes: a first portion formed in a single layer and contacting a body part of a user; A second portion extending along an outer circumference of the first portion, the second portion being formed in a double layer; And a protective layer formed on outer surfaces of the first portion and the second portion to prevent injury to a user's body. It may include.

By configuring as described above, it is possible to properly seal the air flowing into the airbag, and to minimize the injury of the user.

The airbag may include a first airbag including a first portion and a second airbag that receives the first airbag and exposes the first portion.

The airbag may also include a first airbag having a first portion formed thereon; And a second airbag having a second portion formed around the first portion and accommodating the first airbag; It may be provided.

As such, by removing a portion of the first airbag or the second airbag and forming the first airbag, the volume of the airbag may be reduced. In addition, since the second airbag accommodates the first airbag, the second portion may be formed in double layers to seal the air introduced into the airbag to maintain the shape of the airbag. As a result, the injury of the user can be minimized by preventing the air of the air bag from being discharged before the user hits the air bag.

In addition, a space is formed between the first airbag and the second airbag accommodated in the second airbag, and the space may be an air moving space from the first airbag to the second airbag. In this case, a plurality of first air holes may be formed on a surface of the first air bag accommodated in the second air bag so that air introduced into the first air bag moves to the second air bag, and in the second part, The second air hole may be formed to allow the introduced air to flow in and out. As the first and second air holes are formed as described above, the first air bag and the second air bag may be properly inflated and contracted to minimize pressure on the user.

On the other hand, when an impact is applied to the vehicle, air is introduced into the airbag, and the first and second airbags may be sequentially inflated by the introduced air. As the airbags are formed of the first and second airbags as described above, the time for which the air introduced into the airbags stays longer may be longer, thereby maintaining the appearance of the airbags.

In this case, the protective layer may be formed of at least one layer of coating film to minimize injury to the user and to prevent air discharge to the first portion. That is, since the protective layer is coated in several layers to seal the air introduced into the airbag, the shape of the airbag may be maintained until the user hits the airbag. On the other hand, the protective layer may be formed of silicon or a chemical material, it may be formed of various materials that can be expanded by the air flowing into the air bag.

In addition, a tether may be provided inside the airbag, and the tether may serve to maintain the shape of the airbag when the airbag is inflated. That is, when the airbag is inflated, it should be inflated in such a way as to minimize the impact on the user in the proper position. As such, the tether maintains the shape of the airbag when the airbag is inflated, thereby minimizing secondary damage that may be caused by the airbag by the user.

The tether may be provided around the first portion. That is, since no tether is provided in the protective layer, the protective layer can maintain a single layer, and the airbag can maintain its shape. In addition, since the air bag is not separately mounted inside the air bag, the total volume of the air bag may be reduced.

Airbag device according to the configuration as described above can form a protective layer on the first portion that the user's body can be contacted to properly seal the air flowing into the airbag, and adjusts the rate at which the introduced air is discharged to the outside Can be. As a result, even when a vehicle crashes, safety may be improved by minimizing user injury.

In addition, the airbag apparatus according to an embodiment of the present invention can form a first portion in a single layer, and by forming a second portion formed in the periphery of the first portion in a double layer, it is possible to reduce the volume of the airbag.

In addition, the airbag apparatus according to an embodiment of the present invention forms a space between each fold of the second portion formed in a double fold, and by forming a fine air hole in each fold, the speed that the air introduced into the airbag is diffused By adjusting the airbag can be properly inflated or contracted to minimize the user's injury.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited or limited by the embodiments. Like reference numerals in the drawings denote like elements.

Before describing the drawings, the airbag apparatus according to an embodiment of the present invention will be described with reference to an airbag apparatus which is mounted to the center of the handle of the vehicle and discharged in the direction of the user's face, neck, etc. It may be mounted on the inside, the passenger seat, and the like, and the present invention is not limited or limited by the position where the airbag device is mounted.

1 is a diagram illustrating a vehicle equipped with an airbag device and a steering wheel of the vehicle according to an embodiment of the present invention.

Referring to FIG. 1, the airbag accommodation unit 50 in which the airbag 100 is stacked and accommodated may be provided at the center portion of the handle 5 of the vehicle 1. The airbag accommodating part 50 may accommodate the airbag 100 at normal times, and when an impact is applied to the vehicle 1, air is injected into the airbag 100 to inflate the airbag 100 ( Not shown) may be provided.

In addition, the airbag receiving unit 50 maintains the airbag 100 nested within the airbag receiving unit 50 at normal times, and when the vehicle 1 is subjected to an impact, the airbag 100 receives the airbag receiving unit 50. The airbag cover may be discharged to the outside.

The airbag cover may be detachable from the airbag accommodating part 50. When the airbag cover is separated from the airbag accommodating part 50, the airbag 100 may be discharged toward the user. The discharged airbag device 10 allows the user to minimize injuries due to the shock applied to the vehicle 1.

2 is a perspective view illustrating a state in which the airbag device of FIG. 1 is discharged from a handle, and FIGS. 3A and 3B are views illustrating a process of expanding and contracting air by introducing air into the airbag device of FIG. 2.

Referring to the drawings, the airbag device 10 is formed along a periphery of the first portion 122 and the first portion 122 formed in a single layer and in contact with a user's body part, the second portion 142 formed in a double layer And an airbag 100 having a protective layer 160 formed on outer surfaces of the first portion 122 and the second portion 142.

In this case, the first portion 122 and the second portion 142 may be divided based on the boundary line 110, and the protective layer 160 may be formed on the first portion 122 or the second portion 142. Can be.

The protective layer 160 may minimize injury to a user by the airbag 100. For example, when an impact is applied to the vehicle 1, air may be injected into the airbag 100. Herein, the injected air is a hot expansion gas, and when a user hits the airbag 100 in a process of injecting a hot gas into the airbag 100 suddenly, the airbag 100 may be damaged or the face part of the user may be affected by the hot gas. May cause injury. In order to minimize such injuries, the protective layer 160 may be formed on the surface of the airbag 100 in contact with the face of the user, thereby preventing an accident that may be caused by the airbag 100.

The protective layer 160 may use silicon, a chemical material, or the like, and may generate an effect similar to coating the surface of the airbag 100. In particular, since the protective layer 160 is a part directly contacting the face of the user, it is preferable to coat it with a soft material such as silicon, but the material for forming the protective layer 160 may be changed according to the conditions required by the invention. .

In addition, the protective layer 160 may be formed on the entire upper surface of the airbag 100, or alternatively, may be formed only on the first portion 122. Hereinafter, in one embodiment of the present invention, for example, the protective layer 160 is formed on the first portion 122, but the present invention is not limited or limited by the region in which the protective layer 160 is formed.

In addition, the protective layer 160 may be coated after the airbag 100 is formed. Alternatively, the protective layer 160 may be formed of a material in which a coating film is formed. For example, when the airbag is formed of a material on which the protective layer 160 is formed, the air holes 124 and 144 may be formed by post-operation to secure an air passage. Alternatively, when the airbag 100 is formed and then the top surface of the airbag 100 is coated, the protective layer 160 is formed only on the first portion 122 so that the air holes 124 and 144 are formed by the protective layer 160. It can prevent the filling.

In this case, the protective layer 160 may be formed in one layer on the upper surface of the airbag 100, or may be formed in several layers. In order to improve the degree of sealing of the airbag 100 and to improve the stability of the user in the same time, it is preferable to form several layers of the protective layer 160, but the degree of formation of the protective layer 160 is required to the extent required by the invention. Subject to change.

Meanwhile, the airbag 100 accommodates the first airbag 120 and the first airbag 120 including the first portion 122 and the second airbag 140 exposing the first portion 122. It can be provided.

For example, an end portion of the airbag 100 in contact with the face of the user may be referred to as an upper portion, and an end portion mounted to the airbag accommodation portion 50 may be referred to as a lower portion. In this case, a portion of the upper portion of the second airbag 140 may be cut so that the first airbag 120 may be exposed by the cut region of the second airbag 140. The exposed area may be referred to as a first portion 122, and the upper portion of the second airbag 140 that is not cut may be the second portion 142.

An upper portion of the second airbag 140 may be formed in a donut shape with a center removed, and a first airbag 120 may be mounted in the center. As such, the first airbag 120 may be provided in the center of the face of the user, and the second airbag 140 may be provided in the peripheral portion other than the center. In this case, the first portion 122 provided with the first airbag 120 may be formed in a single layer, and the second portion 142 provided with the second airbag 140 may be provided in the first airbag 120 provided therein. It can be formed by double ply.

Although the upper portion of the second airbag 140 is described as an example formed in a donut shape, it may be formed in various shapes such as polygons, ellipses, etc. according to the conditions required by the invention.

Here, the contact end surface where the first portion 122 and the second portion 142 are in contact with each other may be fixed to substantially maintain the first airbag 120 and the second airbag 140. As such, when the contact end surface between the first portion 122 and the second portion 142 is fixed, air flowing into the airbag 100 may be prevented from leaking to the outside.

Meanwhile, a space S may be formed between the first airbag 120 and the second airbag 140 accommodated in the second airbag 140, and the space S may be the first airbag 120. May be a moving space of the air moving to the second airbag 140.

In addition, on the surface of the first airbag 120 accommodated in the second airbag 140, a plurality of first air holes 124 may be provided such that air introduced into the first airbag 120 may move to the second airbag 140. This can be formed. In addition, a second air hole 144 may be formed in the second part 142 to allow the air introduced from the first air hole 124 to flow in and out.

The first and second airbags 120 and 140 may be sequentially inflated by the first and second air holes 124 and 144. That is, when an impact is applied to the vehicle 1, air may flow into the first air bag 120. The introduced air may move to the space S by the first air hole 124. In this process, the first air bag 120 may expand, and the second air may move to the space S. The airbag 140 may inflate.

The user may collide with the inflated airbag 100 to contract. That is, in general, the user may collide with the first airbag 120 first, and the user applies pressure to the first part 122 so that air may flow through the first air hole 124 to the second airbag 140. Can be moved. After a predetermined time after the user collides with the airbag 100, the air in the airbag 100 may be discharged to the outside through the second air hole 144, and the airbag 100 is expanded by contracting the airbag 100. ), The user's face can be prevented from bruising or bending.

The first and second air holes 124 and 144 may be fine holes through which air is moved, and the sizes of the air holes 124 and 144 may be variously changed according to the conditions required by the present invention. For example, the air hole may be a micro hole of a fiber generated in the process of weaving the air bag 100, or may be formed separately on the surface of the air bag 100, as in an embodiment of the present invention.

The airbag 100 formed as described above may form a space S between the first and second airbags 120 and 140, and thus, a copper wire through which air moves may be lengthened. If the copper wire is lengthened, the speed at which the air is discharged may be adjusted, and the appearance of the airbag 100 may be easily maintained. As a result, the user may hit the airbag 100 in a soft state.

In addition, the protective layer 160 formed on the outer surface of the airbag 100 can minimize the injury of the user colliding with the airbag 100, it is possible to maintain the airbag 100 in a closed state. That is, as described above, since the protective layer 160 is formed of a material such as silicon, it is possible to minimize injury to the user's face part, and the appearance of the airbag 100 may be easily maintained by preventing air discharge to the outside.

In addition, the volume for storing the airbag 100 by folding the airbag 100 may be reduced, and the fabric for manufacturing the airbag 100 may be reduced. As a result, cost and time for forming the airbag 100 can be reduced.

Meanwhile, in one embodiment of the present invention, the airbag 100 is described as an upper surface of an area where the face of the user contacts, for example, but the positions of the upper and lower surfaces may be changed according to the conditions required by the present invention.

4 is a perspective view showing an airbag apparatus according to a modification of the present invention, and FIG. 5 is a view showing the airbag of FIG.

Prior to describing the modifications according to the present invention, the same or equivalent components as those described above are denoted by the same or equivalent components, and detailed description thereof will be omitted.

Referring to FIG. 4, an airbag 200 according to a variation of the present invention includes a second airbag 240 including a first portion 242 and a second portion 246 integrally formed with the first portion 242. Is provided, the second airbag 240 may accommodate the first airbag 220. An upper surface of the first airbag 220 may be cut and accommodated in the second airbag 240. That is, since the upper surface of the first airbag 220 is cut, the first portion 242 may be formed in a single layer, and the second portion 246 may be provided with a first airbag 220 therein, thereby substantially double the double layer. Can be formed. In addition, the first portion 242 may correspond to the cut region of the first airbag 220, and the second portion 246 may be referred to as a periphery of the first portion 242.

Meanwhile, a first air hole 224 through which air may pass may be formed in the first air bag 220, and air introduced from the first air hole 224 may be discharged into the second air bag 240. The second air hole 244 may be formed to be. here. The second air hole 244 is formed only in the second part 246 to distinguish the first part 242 from the second part 246.

In addition, a space S may be formed between the second portion 246 and the first airbag 220. The space S may be a space in which air moves, and may be a space in which the air may stay to maintain the inflated state of the airbag 200.

That is, the air introduced into the airbag 200 may expand the first airbag 220 and move to the space S to inflate the second airbag 240. In this case, since the first and second air holes 224 and 244 are minute holes through which air passes, the air introduced into the space S may be prevented from falling out for a short time. As a result, the time for maintaining the appearance of the airbag 200 can be increased, and the user can minimize injuries by the inflated airbag 200.

Meanwhile, the first and second portions 242 and 246 may be referred to as protective layers 160_ 3A and 3B of the second airbag 240. That is, when the air is suddenly introduced into the airbag 200, the first and second parts 242 and 246 may prevent the airbag 200 from being injured by the inflated air, thereby preventing the user from being injured. In addition, the first and second portions 242 and 246 may properly seal the air introduced into the air bag 200 to maintain the appearance of the air bag 200.

In this case, the first part 242 and the second part 246 may be coated with a material such as silicon or a chemical material to minimize the pressure applied to the user's face when the user's face part collides with the airbag 200. In addition, the first portion 242 and the second portion 246 is coated in one or more layers to improve the sealing degree of the air introduced into the airbag 200, even if the collision time between the user and the airbag 200 is long, the airbag 200 ) To maintain the appearance.

On the other hand, Figure 6 is a diagram showing an airbag apparatus according to another modified example of the present invention.

Referring to FIG. 6, a tether 320 may be provided inside the airbag 300. The tether 320 may maintain the shape of the airbag 300 when the airbag 300 is inflated, and may be provided around the first portions 122, 242_ FIGS. 3A, 3B, and 5. .

For example, when the airbag 300 is inflated, the position in which the tether 320 is mounted may correspond to the position of the second portion 142, 242 _ 3a, 3b and 5 as in the embodiment and the modified example. The central portion of the upper surface of the airbag 300 may be provided only as the airbag 300 in a single state.

In this case, the airbag 300 according to another modified example of the present invention is described with an example in which a tether 320 is provided in a single-ply airbag 300, but the double-ply airbag 100, 200_ FIGS. 2 to 5 are referred to. It may be provided within).

As described above, in the case of the airbag 300 in which the tether 320 is mounted, the location in which the tether 320 is mounted may lead to the same effect as the double ply, so that the air introduced into the airbag 300 may be easily sealed. have.

On the other hand, a space S (see FIGS. 3A, 3B, and 5) may be formed between the airbag 300 and the tether 320, but in another modification of the present invention, the airbag 300 and the tether 320 may be formed between the airbag 300 and the tether 320. An example in which no space S is formed is described.

Since the tether 320 is provided, the airbag 300 may be inflated to an appropriate position in the process of inflating, and the user may be shocked when the vehicle (see FIG. 1) is applied because the airbag 300 is fixed. The airbag 300 can be located in the face portion of the.

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope described in the claims.

1 is a diagram illustrating a vehicle equipped with an airbag device and a steering wheel of the vehicle according to an embodiment of the present invention.

2 is a perspective view illustrating a state in which the airbag apparatus of FIG. 1 is discharged from a handle.

3A and 3B are views illustrating a process of expanding and contracting air by introducing air into the airbag apparatus of FIG. 2.

4 is a perspective view showing an airbag apparatus according to a modification of the present invention.

5 is a view showing the airbag of FIG.

6 is a view showing an airbag apparatus according to another modified embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100, 200, 300: airbag 120, 220: first airbag

122, 242: first portion 140, 240: second airbag

424, 244, second portion 160: protective layer

320: tether

Claims (9)

In an airbag apparatus of a vehicle in which an airbag is discharged by an impact, The airbag may be formed as a single body and a first portion of the body portion of the user in contact with; A second portion extending along an outer circumference of the first portion, the second portion being formed in a double layer; And Protective layers formed on outer surfaces of the first portion and the second portion to prevent injury to a user's body; Airbag device comprising a. The method according to claim 1, The air bag, A first airbag comprising the first portion; And A second airbag containing the first airbag and exposing the first portion; Airbag device characterized in that it comprises a. The method according to claim 1, The air bag, A first airbag; And A second airbag accommodating the first airbag, the first portion and the second portion being integrally formed; And the first airbag is cut in an area corresponding to the first portion. The method according to any one of claims 1 to 3, And a space is formed between the first airbag and the second airbag accommodated in the second airbag, and the space is an air moving space from the first airbag to the second airbag. The method according to claim 4, A plurality of first air holes are formed on a surface of the first air bag accommodated in the second air bag so that air introduced into the first air bag moves to the second air bag. And the second air hole is formed in the second part to allow the air introduced from the first air hole to flow in and out. The method according to claim 5, When the impact is applied to the vehicle, air is introduced into the airbag, and the first and second airbags are inflated sequentially by the introduced air. The method according to claim 4, The protective layer is airbag device, characterized in that formed with at least one layer of coating to minimize the injury of the user, and to prevent the air discharge to the first portion. The method according to claim 4, A tether is provided inside the airbag so that the tether maintains the shape of the airbag when the airbag is inflated. The method according to claim 4, And the tether is connected to a periphery of the first portion.

Images