KR20230026221A - Roof airbag apparatus for mobility - Google Patents

Abstract

Disclosed is a roof airbag device of a mobility, which protects a passenger sitting on a seat since an airbag is expanded from an indoor roof to a lower side and enables the passenger to be stably restrained by the airbag since an expansion shape of the airbag is maintained to safely protect the passenger from an impact.

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 indoor roof to protect the occupant seated in the seat, and as the shape of the deployed airbag is maintained, it is a mobility loop that safely protects the occupant from impact. An object thereof is to provide an airbag device.

A roof airbag device for mobility according to the present invention for achieving the above object includes a first cushion unit connected to an indoor roof and deployed downward in the indoor roof when inflated; a second cushion part that is spaced apart from the first cushion part and connected to the indoor loop, and deploys downward from the indoor loop when inflated; And between the first cushion part and the second cushion part, the first cushion part and the second cushion part extend in a direction facing each other and are connected in communication with the first cushion part and the second cushion part, so that when inflated, the first cushion part and the second cushion part are connected. A third cushion part for maintaining the unfolded shape of the second cushion part; includes.

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.

The connection portion of the first cushion portion and the third cushion portion and the connection portion of the second cushion portion and the third cushion portion are characterized in that the edges are recessed inward to form a bend guide portion.

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.

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 of 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.

In the roof airbag device of mobility having the structure as described above, the airbag deploys downward in the indoor roof to protect occupants seated in the seat, and as the deployment shape of the airbag is maintained, the occupant is stably restrained by the airbag to protect the occupant from impact. occupants are safely protected.

1 is a view showing a roof airbag device for mobility according to the present invention.
FIG. 2 is a view for explaining a first cushion unit, a second cushion unit, and a third cushion unit in the roof airbag device for the mobility shown in FIG. 1;
FIG. 3 is a view showing a deployment state of the 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, and FIG. 2 is a view for explaining a first cushion part, a second cushion part, and a third cushion part in the roof airbag device for mobility shown in FIG. , FIG. 3 is a view showing a deployed state of the roof airbag device for mobility shown in FIG. 1 .

As shown in FIGS. 1 to 3 , the roof airbag device for mobility according to the present invention includes a first cushion unit 100 connected to an indoor roof R and deployed downward in the indoor roof R when inflated; a second cushion part 200 spaced apart from the first cushion part 100, connected to the indoor roof R, and deployed downward in the indoor roof R when inflated; And between the first cushion part 100 and the second cushion part 200, the first cushion part 100 and the second cushion part 200 extend in a direction facing each other, so that the first cushion part 100 and the second cushion part 100 A third cushion unit 300 that is connected to the cushion unit 200 in communication and maintains the unfolded shapes of the first cushion unit 100 and the second cushion unit 200 when inflated.

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

As can be seen in FIG. 1, the roof airbag (A) of the present invention is composed of a first cushion part 100, a second cushion part 200, and a third cushion part 300, and the first cushion part 100 , the second cushion part 200 and the third cushion part 300 are inflated by sharing the gas supplied from the inflator I. The first cushion unit 100, the second cushion unit 200, and the third cushion unit 300 may be formed in different shapes or sizes according to the protection range of the occupant.

That is, the first cushion part 100 and the second cushion part 200 are connected to the indoor roof R and are deployed downward when inflated. The first cushion part 100 and the second cushion part 200 are spaced apart from each other and connected via the third cushion part 300 . Accordingly, in the roof airbag (A) according to the present invention, the third cushion part 300 expands after the first cushion part 100 and the second cushion part 200 are deployed downward when inflated, so that the third cushion part 300 is inflated. As the deployed shape and deployed position of the first cushion unit 100 and the second cushion unit 200 are maintained by the unit 300, the abnormal deployment of the first cushion unit 100 and the second cushion unit 200 is maintained. is prevented, and the occupants can be protected by the first cushion part 100 and the second cushion part 200.

Here, the third cushion part 300 is connected to the ends of the first cushion part 100 and the second cushion part 200 in communication. Due to this, when the roof airbag (A) is deployed, the first cushion part 100 and the second cushion part 200 are inflated by the gas of the inflator (I), and the third cushion part 300 is the first cushion part. 100 and the second cushion portion 200 is supplied with gas that has passed through, and is inflated.

Accordingly, the deployment speed of the first cushion unit 100 and the second cushion unit 200 is secured, and after the first cushion unit 100 and the second cushion unit 200 are deployed, the third cushion unit 300 ) expands and maintains the deployed shape and deployed position of the first cushion unit 100 and the second cushion unit 200, the first cushion unit 100 and the second cushion unit 200 return to their original positions. can be developed accurately.

Also, when the third cushion part 300 is inflated, it is formed longer than the distance at which the first cushion part 100 and the second cushion part 200 are separated from the indoor roof R.

That is, in a state where the first cushion part 100 and the second cushion part 200 are installed on the indoor roof R, the first cushion part 100 and the second cushion part 200 are spaced apart according to their installation positions. Since the distance is shorter than the length of the third cushion part 300 when it is inflated, the first cushion part 300 provides the first cushion when the first cushion part 100 and the second cushion part 200 are completely deployed. The portion 100 and the second cushion portion 200 are arranged so as to open obliquely.

Due to this, when the occupant loads the first cushion unit 100 or the second cushion unit 200 due to a collision of the mobile, the first cushion unit 100 and the second cushion unit 200 are unfolded in an oblique line. As it is arranged, the upper body of the occupant can be stably supported. In addition, as the third cushion unit 300 generates a supporting force for the first cushion unit 100 or the second cushion unit 200, the loaded load on the first cushion unit 100 or the second cushion unit 200 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 100, the first cushion unit 100 contacts the occupant's upper body and the third cushion unit 300 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 100 and the third cushion unit 300 and are stably restrained.

On the other hand, the connection part between the first cushion part 100 and the third cushion part 300 and the connection part between the second cushion part 200 and the third cushion part 300 have edges depressed inward, so that the bending guide part (B ) is formed.

As shown in FIG. 2, at the edges of the first cushion part 100, the second cushion part 200, and the third cushion part 300, the first cushion part 100 and the third cushion part 300 By forming the bend guide part (B) at the connection part and the connection part between the second cushion part 200 and the third cushion part 300, the loop airbag (A) starts from the bend guide part (B) as the first cushion part In (100) and the second cushion part 200, a deformation in which the third cushion part 300 is bent may be performed.

Here, the bending induction part (B) is formed by sinking the rim of the roof airbag (A) inward. As the third cushion part 300 is deformed to be bent in (200), the first cushion part 100 and the second cushion part 200 support the upper body of the occupant, and the third cushion part 300 supports the occupant's upper body. It becomes a form that supports the lower body.

On the other hand, as shown in FIG. 2, the first cushion part 100 extends along the rim and forms the first outer cushion part 110 that expands when deployed and the inner surface of the first outer cushion part 110. It consists of a first dead part 120 that expands, and the second cushion part 200 extends along the rim and expands when deployed, the second outer cushion part 210 and the inner surface of the second outer cushion part 210. It consists of a second dead portion 220 that is unexpanded.

That is, the first cushion part 100 and the second cushion part 200 are divided into an expanded area and an unexpanded area.

In detail, as the expansion area of the first cushion part 100 and the second cushion part 200, the first outer cushion part 110 extends along the rim of the first cushion part 100, and the second cushion part 200, the second outer cushion portion 210 extends along the rim.

In addition, as an unexpanded area of the first cushion part 100 and the second cushion part 200, the first cushion part 100 has a first dead part 120 inside the first outer cushion part 110. A second dead part 220 is formed inside the second outer cushion part 210 in the second cushion part 200 .

Accordingly, in the roof airbag (A), only the first outer cushion part 110 and the second outer cushion part 210 forming the rim are inflated in the first cushion part 100 and the second cushion part 200. The inflation rate is secured, and the deployed shape of the roof airbag (A) can be maintained. In addition, when the roof airbag (A) is inflated, the first dead part 120 of the first cushion part 100 or the second dead part 220 of the second cushion part 200 is in contact with the upper body of the occupant, As the third cushion part 300, along with the lower parts of the first outer cushion part 110 and the second outer cushion part 210, come 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 300 extends along the edge and communicates with the first outer cushion part 110 of the first cushion part 100 and the second outer cushion part 210 of the second cushion part 200. It consists of a third outer cushion portion 310 and a third dead portion 320 that forms an inner surface of the third outer cushion portion 310 and is not inflated.

In this way, the third cushion part 300 is composed of the third outer cushion part 310 and the third dead part 320, and the third outer cushion part 310 is the first outer side of the first cushion part 100. By communicating with the cushion part 110 and the second outer cushion part 210 of the second cushion part 200, the gas is delivered through the first outer cushion part 110 and the second outer cushion part 210 and is inflated. . That is, as the third cushion part 300 is finally expanded after the first cushion part 100 and the second cushion part 200 are inflated, the first cushion part 100 by the third cushion part 300 ) and the deployed shape and deployed position of the second cushion unit 200 are normalized.

In addition, the expansion speed of the third cushion part 300 is secured as only the third outer cushion part 310 is inflated by the non-expanded region by the third dead part 320 .

On the other hand, in the third cushion part 300, as the central cushion part 330 horizontally crossing the third dead part 320 extends from the third outer cushion part 310, the third dead part 320 is divided into one dead zone 321 and the other dead zone 322 by the central cushion part 330 .

That is, the central cushion part 330 is an expansion area in the third cushion part 300 and is connected to the third outer cushion part 310 and is inflated by receiving gas from the third outer cushion part 310 . The central cushion part 330 maintains the unfolded shape of the third cushion part 300 together with the third outer cushion part 310 by the force of expansion. The central cushion part 330 may have a smaller diameter than the third outer cushion part 310 .

In addition, in the third dead part 320 of the third cushion part 300, as the central cushion part 330 extends to cross the third dead part 320, one dead zone 321 becomes the other dead zone. (322). Through this, the third cushion part 300 includes a first tether 410 having one end connected to the indoor loop R and the other end connected to one dead zone 321, and one end connected to the indoor loop R and the other end As the second tether 420 connected to the other dead zone 322 is provided, the roof airbag A can be normally deployed.

That is, the roof airbag (A) is provided with a first tether 410 and a second tether 420 connected to the interior roof (R) and the third cushion part 300 to guide the deployment shape of the roof airbag (A). do. As a result, the expansion of the third cushion unit 300 is restricted by the lengths of the first tether 410 and the second tether 420 to prevent downward sagging, and the unfolded shape of the third cushion unit 300 is guided. Accordingly, the deployed shape and deployed position of the first cushion unit 100 and the second cushion unit 200 are supported by the third cushion unit 300 so that they are normally deployed.

In addition, the first tether 410 and the second tether 420 have their other ends connected to the first cushion part 100 in one dead zone 321 and the other dead zone 322 of the third cushion part 300, respectively. As it is connected adjacently to the second cushion part 200, the bending shape of the third cushion part 300 in the first cushion part 100 and the second cushion part 200 is guided. Accordingly, when the roof airbag A is inflated, the third cushion part 300 in the first cushion part 100 and the second cushion part 200 may be deployed in a bent shape.

On the other hand, as the central cushion parts 330 are configured as a pair and extend symmetrically in a spaced apart state, a central dead zone 323 is formed between the central cushion parts 330, and one end of the third cushion part 300 is formed. A third tether 430 connected to the indoor loop R and the other end connected to the central dead zone 323 is provided.

In this way, the central cushion part 330 is configured as a pair and is spaced apart from each other to form a central dead zone 323, so that the third tether 430 extends through the central dead zone 323 to the third cushion part 300. can be connected to That is, the third tether 430 has one end connected to the indoor loop R and the other end connected through the central dead zone 323 of the third cushion part 300 to form an inflated shape of the third cushion part 300. this is induced

In addition, since the third tether 430 is sawed and fixed to the central dead zone 323, which is an uninflated area, in the third cushion unit 300, the third cushion unit 300 is damaged when the roof airbag A is deployed. this is avoided In addition, the third tether 430 is connected to the center where the central dead zone 323 is located in the third cushion part 300, thereby guiding the position so that the third cushion part 300 does not move to one side. Accordingly, the deployment positions of the first cushion unit 100 and the second cushion unit 200 connected to the third cushion unit 300 may be deployed to a designed normal position.

In the roof airbag (A) device of mobility having the structure as described above, the airbag is deployed downward in the interior roof (R) to protect the occupant seated in the seat, and as the deployed shape of the airbag is maintained, the occupant is hit by the airbag. It is stably restrained and the occupant is safely protected from impact.

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: first cushion part 110: first outer cushion part
120: first dead part 200: second cushion part
210: second outer cushion part 220: second dead part
300: third cushion part 310: third outer cushion part
320: third dead part 321: one side dead zone
322: other side dead zone 323: center dead zone
330: central cushion part 410: first tether
420: second tether 430: third tether

Claims (9)

a first cushion unit connected to the indoor loop and deployed downward from the indoor loop when inflated;
a second cushion part that is spaced apart from the first cushion part and connected to the indoor loop, and deploys downward from the indoor loop when inflated; and
The first cushion part and the second cushion part extend between the first cushion part and the second cushion part in a direction facing each other and are connected in communication with the first cushion part and the second cushion part, so that when the first cushion part and the second cushion part are inflated, the first cushion part and the second cushion part are connected. A roof airbag device for mobility, comprising: a third cushion unit maintaining the deployed shape of the cushion unit. 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 loop airbag device for mobility, characterized in that 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 are formed with a bending induction part formed by rims recessed inward. 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 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.

Images