KR20230055159A - Roof airbag apparatus for mobility - Google Patents

Abstract

In the present invention, a roof airbag device for mobility in which an airbag is deployed downward in an indoor roof to protect occupants seated in a seat, the shape of the deployed airbag is maintained, and the occupant is safely protected from impact as the position change is minimized is introduced. .

Description

Mobility's roof airbag device {ROOF AIRBAG APPARATUS FOR MOBILITY}

The present invention relates to a roof airbag device for mobility in which an airbag is deployed downward in an indoor roof to protect an occupant seated in a seat.

In general, mobility devices are installed with safety devices to safely protect occupants from accidents such as collisions and rollovers. These safety devices include seat belts that restrain the occupants' bodies and airbags that mitigate impacts from impacts that occupants collide with. there is. These airbags are variously installed in various parts of mobility as needed, such as a driver's seat airbag installed on a steering wheel and a passenger seat airbag installed on an instrument panel of a passenger seat.

On the other hand, mobility is divided into a front space with front seat occupants and a rear space with rear seat occupants. In the event of a mobility collision, the rear seat occupants move forward by inertia, resulting in a collision between the occupants inside.

In particular, recently, self-driving mobility has been increasing, and in the case of self-driving mobility, the position of the seat is configured to be variously adjusted in a 360-degree direction. Accordingly, the front seat occupants and the rear seat occupants may face each other, but injuries may occur due to a collision between the occupants when a collision of mobility occurs in a state where the front seat occupants and the rear seat occupants face each other.

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

KR 10-2012-0033743 A (2012.04.09)

The present invention has been proposed to solve these problems, and the airbag is deployed downward in the interior roof to protect the occupant seated in the seat, the shape of the deployed airbag is maintained and the positional change is minimized to safely protect the occupant from impact. Its purpose is to provide a roof airbag device for protecting mobility.

In order to achieve the above object, a roof airbag device for mobility according to the present invention is installed in an indoor roof, installed to be spaced apart from each other, and includes a first cushion unit and a second cushion unit that deploy downward when deployed, the first cushion unit and the first cushion unit. an airbag cushion composed of a third cushion unit connected in communication with the first cushion unit and the second cushion unit between the two cushion units; a first hug tether that is spaced apart from the first cushion part of the airbag cushion and is installed in the indoor loop and extends to surround the inside of the first cushion part; and a second hug tether that is spaced apart from the second cushion of the airbag cushion and is installed on the indoor loop and extends to surround the inside of the second cushion.

When the third cushion unit is inflated, it is characterized in that the first cushion unit and the second cushion unit are formed longer than the distance apart from the indoor loop.

The third cushion unit is characterized in that it is connected in communication with the ends of the first cushion unit and the second cushion unit.

It is characterized in that the edges are recessed inward to form a bend induction part at the connection part of the first cushion part and the third cushion part and the connection part of the second cushion part and the third cushion part.

The first cushion portion includes a first outer cushion portion that extends along the rim and expands when deployed, and a first dead portion that forms an inner surface of the first outer cushion portion and does not expand, and the second cushion portion extends along the rim and expands when deployed. It is characterized in that it consists of a second outer cushion portion and a second dead portion that forms an inner surface of the second outer cushion portion and is not inflated.

The third cushion part extends along the rim to form the third outer cushion part communicating with the second outer cushion part of the first cushion part and the second outer cushion part of the second cushion part, and the inner surface of the third outer cushion part, and the unexpanded first cushion part is formed. It is characterized in that it consists of 3 dead parts.

The third cushion part is characterized in that the third dead part is partitioned into one dead zone and the other dead zone by the central cushion part as the central cushion part horizontally crossing the third dead part extends from the third outer cushion part.

The third cushion unit may include a first tether having one end connected to the indoor loop and the other end connected to one dead zone, and a second tether having one end connected to the indoor loop and the other end connected to the other dead zone.

The first hug tether is formed to surround the inner surface of the first tether and is connected to the inner surface of the first tether, and the second hug tether is formed to surround the inner surface of the second tether and is connected to the inner surface of the second tether. characterized by

As the central cushion part is composed of a pair and extends symmetrically in a spaced apart state, a central dead zone is formed between the central cushion parts, and a third tether in the third cushion part has one end connected to the indoor loop and the other end connected to the central dead zone. It is characterized in that provided.

The first hug tether is extended to gradually spread to one side while wrapping the inside of the first cushion, and both ends are installed in the indoor loop, and the second hug tether is extended to gradually spread to the other side while wrapping the inside of the second cushion. It is characterized in that both ends are installed in the indoor loop.

In the roof airbag device of mobility having the structure as described above, the airbag is deployed downward in the indoor roof to protect the occupants seated in the seat, and the shape of the deployed airbag is maintained and the position change is minimized, so that the occupant is safe from impact. are protected

1 is a view showing a roof airbag device for mobility according to the present invention.
2 is a view showing a conventional roof airbag.
FIG. 3 is a view showing an embodiment of a roof airbag device for the mobility shown in FIG. 1;
FIG. 4 is a view for explaining a roof airbag device of the mobility shown in FIG. 1;

Hereinafter, a roof airbag device for mobility according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a view showing a roof airbag device for mobility according to the present invention, FIG. 2 is a view showing a conventional roof airbag, and FIG. 3 is a view showing an embodiment of the roof airbag device for mobility shown in FIG. 1, FIG. 4 is a diagram for explaining a roof airbag device for mobility shown in FIG. 1 .

As shown in FIG. 1, the roof airbag device for mobility according to the present invention includes a first cushion unit 110 and a second cushion unit 120 installed in an indoor roof, spaced apart from each other, and deployed downward when deployed. , Airbag cushion 100 composed of a third cushion part 130 connected to the first cushion part 110 and the second cushion part 120 in communication between the first cushion part 110 and the second cushion part 120 ); a first hug tether 200 that is spaced apart from the first cushion part 110 of the airbag cushion 100 and is installed in the indoor loop and extends to surround the inside of the first cushion part 110; and a second hug tether 300 that is spaced apart from the second cushion part 120 of the airbag cushion 100 and is installed in the indoor loop and extends to surround the inside of the second cushion part 120 .

An airbag cushion (A) according to the present invention is installed on an indoor roof, receives gas from an inflator (I), and is deployed downward in the indoor roof to protect occupants. Accordingly, the airbag cushion 100 may be configured as a roof airbag, and may be disposed between a plurality of seats provided in the room when deployed.

That is, the first cushion part 110 and the second cushion part 120 are installed on the indoor roof and expand downward when inflated. The first cushion part 110 and the second cushion part 120 are spaced apart from each other and are connected via the third cushion part 130 . Accordingly, when the airbag cushion A is inflated, the third cushion part 130 expands after the first cushion part 110 and the second cushion part 120 are deployed downward, so that the third cushion part 130 As a result, the deployed shape and deployed position of the first cushion unit 110 and the second cushion unit 120 are maintained. In addition, in the airbag cushion 100, abnormal deployment of the first cushion unit 110 and the second cushion unit 120 is prevented by the third cushion unit 130, and the first cushion unit 110 and the second cushion unit 110 are An occupant may be protected by the cushion unit 120 .

Here, the third cushion part 130 is connected to the ends of the first cushion part 110 and the second cushion part 120 in communication. Due to this, when the airbag cushion 100 is deployed, the first cushion part 110 and the second cushion part 120 are inflated by the gas of the inflator I, and the third cushion part 130 is the first cushion part. 110 and the second cushion part 120 is supplied with gas that has passed through and is inflated.

Accordingly, the deployment speed of the first cushion unit 110 and the second cushion unit 120 is secured, and after the first cushion unit 110 and the second cushion unit 120 are deployed, the third cushion unit 130 ) expands and maintains the deployed shape and deployed position of the first cushion unit 110 and the second cushion unit 120, the first cushion unit 110 and the second cushion unit 120 return to their original positions. can be developed accurately.

Also, when the third cushion part 130 is inflated, it is formed to be longer than the distance between the first cushion part 110 and the second cushion part 120 in the indoor loop.

That is, in a state where the first cushion part 110 and the second cushion part 120 are installed in the indoor roof, the separation distance between the first cushion part 110 and the second cushion part 120 according to each installation position is determined. By being configured shorter than the length of the three-cushion part 130 at the time of expansion, when the first cushion part 110 and the second cushion part 120 are completely deployed, the first cushion part 110 is provided by the third cushion part 130. ) and the second cushion part 120 are arranged so as to open obliquely.

For this reason, when the occupant loads the first cushion unit 110 or the second cushion unit 120 due to a collision of mobility, the first cushion unit 110 and the second cushion unit 120 arranged diagonally It can stably support the upper body of the occupant. In addition, as the third cushion unit 130 generates a supporting force for the first cushion unit 110 or the second cushion unit 120, the loaded load on the first cushion unit 110 or the second cushion unit 120 It can restrain the occupants and keep them safe.

That is, when a collision occurs in mobility and the occupant is loaded onto the first cushion unit 110, the first cushion unit 110 contacts the occupant's upper body and the third cushion unit 130 contacts the occupant's lower body. As a result, the upper body and lower body of the occupant are supported by the first cushion unit 110 and the third cushion unit 130 and are stably restrained.

On the other hand, in the airbag cushion 100 of the present invention, variation of the deployed position by the first hug tether 200 and the second hug tether 300 is minimized.

That is, the first hug tether 200 is spaced apart from one side of the first cushion part 110 and is installed in the indoor loop, and extends to surround the inside of the first cushion part 110, so that the airbag cushion 100 can be moved to the other side. When the airbag cushion 100 is excessively moved to one side, a pulling force is formed to prevent the airbag cushion 100 from moving to the other side.

In addition, the second hug tether 300 is spaced apart from the other side of the second cushion part of the airbag cushion 100 and is installed in the indoor loop and extends to surround the inside of the second cushion part, so that when the airbag cushion 100 moves to one side By forming a pulling force, the airbag cushion 100 is prevented from moving to one side.

For example, as shown in FIG. 2, in the prior art, when a collision occurs in the mobility from the rear, which is the other direction, the airbag cushion 100 is moved in the other direction by the collision inertia to protect the occupant seated on one side. I have a problem that I can't.

On the other hand, in the present invention, as shown in FIG. 3, when a collision occurs in the mobility from the rear, which is the other direction, the airbag cushion 100 to be moved to the other side is moved by the first hug tether 200 due to the collision inertia. By suppressing this, the occupant seated on one side can be protected by the airbag cushion 100 .

In this way, the airbag cushion 100 minimizes the change in deployment position by the first hug tether 200 and the second hug tether 300, so that the occupant's protection performance through the airbag cushion 100 is secured.

On the other hand, when the airbag cushion 100 is described in detail, as shown in FIG. 4, the connection between the first cushion part 110 and the third cushion part 130 and the second cushion part 120 and the third At the connection portion of the cushion part 130, the rim is recessed inward to form a bending guide part A.

As such, at the edges of the first cushion part 110, the second cushion part 120, and the third cushion part 130, the connection portion of the first cushion part 110 and the third cushion part 130 and the second By forming the bending induction part (A) at the joint between the cushion part 120 and the third cushion part 130, the airbag cushion 100 has the first cushion part 110 and the second cushion part 110 starting from the bending induction part (A). A deformation in which the third cushion unit 130 is bent may be performed in the cushion unit 120 .

Here, the bending induction part (A) is formed by sinking the edge of the airbag cushion 100 inward, and the airbag cushion 100 has the first cushion part 110 and the second cushion part starting from the bending induction part (A). As the third cushion part 130 is deformed to be bent at (120), the first cushion part 110 and the second cushion part 120 support the upper body of the occupant, and the third cushion part 130 supports the occupant's upper body. It becomes a form that supports the lower body.

On the other hand, the first cushion part 110 extends along the rim and forms a first outer cushion part 111 that expands when deployed and a first dead part 112 that forms an inner surface of the first outer cushion part 111 and does not expand. ), the second cushion part 120 extends along the edge and expands when deployed, and the second outer cushion part 121 and the second outer cushion part form the inner surface of the non-expanded second dead part 122 made up of

That is, the first cushion part 110 and the second cushion part 120 are divided into an expanded area and an unexpanded area.

In detail, as an expansion area of the first cushion part 110 and the second cushion part 120, the first outer cushion part 111 extends along the rim of the first cushion part 110, and the second cushion part 120, the second outer cushion portion 121 extends along the rim.

In addition, as an unexpanded area of the first cushion part 110 and the second cushion part 120, the first cushion part 110 has a first dead part 112 inside the first outer cushion part 111. A second dead part 122 is formed inside the second outer cushion part 121 in the second cushion part 120 .

Accordingly, the airbag cushion 100 expands only the first outer cushion part 111 and the second outer cushion part 121 forming the rim in the first cushion part 110 and the second cushion part 120. The inflation rate is secured, and the deployed shape of the airbag cushion 100 can be maintained. In addition, when the airbag cushion 100 is inflated, the first dead part 112 of the first cushion part 110 or the second dead part 122 of the second cushion part 120 comes into contact with the upper body of the occupant, As the third cushion part 130, together with the lower part of the first outer cushion part 111 and the second outer cushion part 121, comes into contact with the lower body of the occupant, the upper and lower body parts of the occupant are supported by the respective cushion parts. and is stably constrained.

Here, the third cushion part 130 extends along the edge and communicates with the first outer cushion part 111 of the first cushion part 110 and the second outer cushion part 121 of the second cushion part 120. It consists of a third outer cushion portion 131 and a third dead portion 132 that forms an inner surface of the third outer cushion portion 131 and is not inflated.

In this way, the third cushion part 130 is composed of the third outer cushion part 131 and the third dead part 132, and the third outer cushion part 131 is the first outer side of the first cushion part 110. By communicating with the second outer cushion part 121 of the cushion part 111 and the second cushion part 120, the gas is delivered through the first outer cushion part 111 and the second outer cushion part 121 and is inflated. . That is, as the third cushion part 130 is finally expanded after the first cushion part 110 and the second cushion part 120 are inflated, the first cushion part 110 by the third cushion part 130 ) and the deployed shape and deployed position of the second cushion unit 120 are normalized.

In addition, the expansion speed of the third cushion part 130 is secured as only the third outer cushion part 131 is inflated by the non-expanded region by the third dead part 132 .

On the other hand, the third cushion part 130 extends from the third outer cushion part 131 to the central cushion part 133 crossing the third dead part 132 in the horizontal direction, so that the third dead part 132 is divided into one side dead zone 132a and the other side dead zone 132b by the central cushion part 133.

That is, the central cushion part 133 is an expansion area in the third cushion part 130, and is connected to the third outer cushion part 131 and is inflated by receiving gas from the third outer cushion part 131. The central cushion part 133 maintains the unfolded shape of the third cushion part 130 together with the third outer cushion part 131 by the force of expansion. The central cushion part 133 may have a smaller diameter than the third outer cushion part 131 .

In addition, in the third dead part 132 of the third cushion part 130, as the central cushion part 133 extends to cross the third dead part 132, one side dead zone 132a is the other side dead zone. (132b). Through this, the third cushion part 130 includes a first tether 400 having one end connected to the indoor loop and the other end connected to one dead zone 132a, and one end connected to the indoor loop and the other end connected to the other dead zone 132b. ), the airbag cushion 100 can be normally deployed.

That is, the airbag cushion 100 is provided with a first tether 400 and a second tether 500 connected to the interior roof and the third cushion unit 130 to guide the deployment shape of the airbag cushion 100 . As a result, the expansion of the third cushion unit 130 is restricted by the lengths of the first tether 400 and the second tether 500 to prevent downward sagging, and the unfolded shape of the third cushion unit 130 is guided. Accordingly, the deployment shape and deployment position of the first cushion unit 110 and the second cushion unit 120 are supported by the third cushion unit 130 so that they are normally deployed.

In addition, the first tether 400 and the second tether 500 have their other ends connected to the first cushion part 110 in one dead zone 132a and the other dead zone 132b of the third cushion part 130, respectively. As it is connected adjacent to the second cushion part 120, the shape in which the third cushion part 130 is bent in the first cushion part 110 and the second cushion part 120 is guided. Due to this, when the airbag cushion 100 is inflated, the third cushion part 130 in the first cushion part 110 and the second cushion part 120 can be deployed in a bent form.

Here, the first hug tether 200 is formed to surround the inner surface of the first tether 400 and is connected to the inner surface of the first tether 400, and the second hug tether 300 is formed to cover the inner surface of the second tether 400. It is formed to surround the side surface and is connected to the inner surface of the second tether 500 .

In other words, as the first hug tether 200 extends from the first cushion part 110 to surround the first tether 400, it forms a pulling force on the first tether 400 to hold the first tether 400. The shape of the connected first cushion part 110 is maintained. In addition, as the second hug tether 300 extends from the second cushion part 120 to surround the second tether 500, it forms a pulling force on the second tether 500 to hold the second tether 500. The shape of the connected second cushion part 120 is maintained.

For example, when a collision occurs in the mobility from the rear, which is the other direction, the airbag cushion 100 is moved to the other side by the collision inertia. At this time, as the first hug tether 200 forms a pulling force in the opposite direction to which the airbag cushion 100 moves while connected to the first tether 400, the first hug tether 200 connects to the first tether 400. The movement of the cushion part 110 to the other side is suppressed. In addition, in the case of the second cushion part 120, a force moving to the other side by inertia is applied—an operation in which the third cushion part 130 is lifted in the direction in which the second cushion part 120 is to be moved is performed. As a result, when the occupant seated on the other side is ejected to one side after a collision with the mobility occurs, the second cushion unit 120 contacts the occupant seated on the other side to safely protect even the occupant seated on the other side.

In this way, the first hug tether 200 and the second hug tether 300 are connected to surround the first tether 400 and the second tether 500, respectively, thereby regulating the movement of the airbag cushion 100 and In addition, it is possible to stably protect the occupant by inducing a shape change of the airbag cushion 100 .

The first hug tether 200 is extended to gradually spread to one side in a state of wrapping the inside of the first cushion part 110, and both ends are installed in the indoor loop, and the second hug tether 300 is the second cushion part. In a state of wrapping the inner side of 120, it extends gradually to the other side so that both ends can be installed in the indoor loop.

In this way, the first hug tether 200 and the second hug tether 300 are formed to gradually spread in a direction away from the airbag cushion 100, so that when the airbag cushion 100 is deployed, the first hug tether 200 and the second hug tether 2 The hug tether 300 does not interfere with the occupant. In addition, when the occupant loaded in the airbag cushion 100 moves to the side of the airbag cushion 100 after a collision with the mobility, the first hug tether 200 and the second hug tether 300 restrain the occupant, so that the occupant moves to the airbag. Do not deviate from the protection range of the cushion 100.

On the other hand, as the central cushion parts 133 are configured as a pair and extend symmetrically in a spaced state, a central dead zone 132c is formed between the central cushion parts 133, and one end of the third cushion part 130 is formed. A third tether 600 connected to the indoor loop and the other end connected to the central dead zone 132c is provided.

In this way, the central cushion part 133 is configured as a pair and is spaced apart from each other to form a central dead zone 132c, so that the third tether 600 extends through the central dead zone 132c to the third cushion part 130. can be connected to That is, the third tether 600 has one end connected to the indoor loop and the other end connected through the central dead zone 132c of the third cushion part 130, so that the expansion shape of the third cushion part 130 is induced. .

In addition, the third tether 600 is sown and fixed to the central dead zone 132c, which is an uninflated area, in the third cushion part 130, so that the third cushion part 130 is damaged when the airbag cushion 100 is deployed. this is avoided In addition, the third tether 600 is connected to the center where the central dead zone 132c is located in the third cushion part 130, thereby guiding the position so that the third cushion part 130 does not move to one side. Accordingly, the deployment positions of the first cushion unit 110 and the second cushion unit 120 connected to the third cushion unit 130 may be deployed to a designed normal position.

In the roof airbag device of mobility having the structure as described above, the airbag is deployed downward in the indoor roof to protect the occupants seated in the seat, and the shape of the deployed airbag is maintained and the position change is minimized, so that the occupant is safe from impact. are protected

Although the present invention has been shown and described in relation to specific embodiments, it is known in the art that the present invention can be variously improved and changed without departing from the technical spirit of the present invention provided by the claims below. It will be self-evident to those skilled in the art.

100: air bag cushion 110: first cushion part
111: first outer cushion part 112: first dead part
120: second cushion part 121: second outer cushion part
122: second dead part 130: third cushion part
131: third outer cushion part 132: third dead part
132a: one side dead zone 132b: other side dead zone
132c: central dead zone 133: central cushion part
200: first hug tether 300: second hug tether
400: first tether 500: second tether
600: third tether A: bending induction unit
I: Inflator

Claims (11)

Installed on the indoor roof, spaced apart from each other, and communicating with the first cushion part and the second cushion part, which are deployed downward when deployed, and between the first cushion part and the second cushion part, the first cushion part and the second cushion part. an airbag cushion composed of a connected third cushion unit;
a first hug tether that is spaced apart from the first cushion part of the airbag cushion and is installed in the indoor loop and extends to surround the inside of the first cushion part; and
A roof airbag device for mobility, comprising: a second hug tether that is spaced apart from the second cushion of the airbag cushion, is installed on the indoor roof, and extends to surround the inside of the second cushion. The method of claim 1,
The roof airbag device for mobility, characterized in that the third cushion unit is formed longer than the distance from which the first cushion unit and the second cushion unit are separated from the indoor roof when inflated. The method of claim 1,
A roof airbag device for mobility, characterized in that the third cushion unit is communicatively connected to ends of the first cushion unit and the second cushion unit. The method of claim 1,
A roof airbag device for mobility, characterized in that the edges are recessed inward to form a bending induction part at the connection part of the first cushion part and the third cushion part and the connection part of the second cushion part and the third cushion part. The method of claim 1,
The first cushion portion includes a first outer cushion portion that extends along the rim and expands when deployed, and a first dead portion that forms an inner surface of the first outer cushion portion and is not inflated,
The roof airbag device for mobility, characterized in that the second cushion part consists of a second outer cushion part that extends along the edge and expands when deployed, and a second dead part that forms an inner surface of the second outer cushion part and is not inflated. The method of claim 5,
The third cushion part extends along the rim to form the third outer cushion part communicating with the second outer cushion part of the first cushion part and the second outer cushion part of the second cushion part, and the inner surface of the third outer cushion part, and the unexpanded first cushion part is formed. A roof airbag device for mobility, characterized in that it consists of three dead parts. The method of claim 6,
Mobility characterized in that the third dead part is divided into one dead zone and the other dead zone by the central cushion part as the third cushion part extends from the third outer cushion part to the central cushion part horizontally crossing the third dead part. 's roof airbag device. The method of claim 7,
The third cushion unit includes a first tether having one end connected to the indoor loop and the other end connected to one dead zone, and a second tether having one end connected to the indoor loop and the other end connected to the other dead zone. Roof airbag device. The method of claim 8,
The first hug tether is formed to surround the inner surface of the first tether and is connected to the inner surface of the first tether;
The roof airbag device for mobility, characterized in that the second hug tether is formed to surround the inner surface of the second tether and is connected to the inner surface of the second tether. The method of claim 7,
As the central cushion part is composed of a pair and extends symmetrically in a spaced state, a central dead zone is formed between the central cushion parts,
The roof airbag device for mobility, characterized in that the third cushion part is provided with a third tether having one end connected to the indoor roof and the other end connected to the central dead zone. The method of claim 1,
The first hug tether is extended to gradually spread to one side in a state of wrapping the inside of the first cushion unit, and both ends are installed in the indoor loop,
The second hug tether is extended to gradually spread to the other side in a state of wrapping the inside of the second cushion unit, and both ends are installed in the indoor roof.

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