KR102182901B1 - Passenger Airbag Apparatus - Google Patents

Abstract

The present invention includes an inflator in which gas is generated and discharged, an airbag cushion in which an active vent is formed so that the gas is partially discharged, and a subpanel covering the active vent so that a subchamber is formed by expanding with gas discharged from the active vent, The sub-panel includes an upper panel that covers and expands the active vent from the outside of the airbag cushion, and is connected to one side of the upper panel to expand and expand larger than the upper panel, and is folded to expand smaller than the airbag cushion. It relates to a passenger seat airbag device capable of reducing injury to a passenger by colliding with a subchamber when a vehicle is inclined at a predetermined angle and when a passenger moves toward a center fascia, including a folding panel.

Description

Passenger Airbag Apparatus {Passenger Airbag Apparatus}

The present invention relates to a passenger-seat airbag device, and more particularly, to a passenger-seat airbag device that expands the airbag protection area to protect the head of a passenger in the event of a vehicle collision.

In general, automobiles are equipped with an airbag device, which is a safety device that protects occupants by inflating an airbag cushion by receiving gas from an inflator during an automobile accident.

Airbag devices are installed in each part of the vehicle as needed.The driver's seat airbag device is mounted on the steering wheel to protect the driver sitting in the driver's seat, and the passenger seat airbag mounted on the upper side of the glove box to protect passengers sitting in the passenger seat. A device and a curtain airbag device mounted along a roof rail to protect the side of a passenger have been proposed.

Among them, the passenger seat airbag device includes an Active Vent (hereinafter referred to as'active vent') and an LRD Vent (Low Release Develop; hereinafter referred to as'LRD vent') to adjust the inner pressure of the cushion when the cushion is deployed. To protect passengers.

More specifically, the active vent increases the head injury criterion by increasing the amount of gas filled inside the airbag more than necessary when the passenger airbag is deployed to protect the passenger in the event of a collision with the vehicle body. In order to prevent the phenomenon, an active vent is connected to a separate TRU (Tether Release Unit), and the TRU is operated when the internal pressure is filled in the cushion more than necessary. At this time, the fixed active vent is separated from the cushion side panel to create a separate vent hole, so that the gas inside the cushion is discharged to reduce the passenger's head acceleration when the passenger's head impacts the cushion. Try to reduce head injuries.

However, in recent years, various laws have been enacted for the safety of passengers, and in particular, it should be possible to ensure the safety of the passengers in a 15˚ inclined state when a vehicle crashes. At this time, the passenger in the passenger seat faces the head toward the center fascia in a collision or non-collision with the passenger seat airbag and collides with the center fascia, causing brain injury (BRIC), etc., resulting in injury to the passenger in the passenger seat. There was a problem that it was difficult to reduce.

An object to be solved by the present invention is to prevent head injury of the occupant when the occupant's head collides with the airbag cushion when the vehicle is collided at a predetermined angle or when excessively rotates toward the center fascia of the vehicle when the vehicle is not collided. .

The problems of the present invention are not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the passenger seat airbag device according to an embodiment of the present invention is inflated with an inflator that generates and discharges gas, an airbag cushion having an active vent formed so that the gas is partially discharged, and gas discharged from the active vent. And a sub-panel covering the active vent to form a sub-chamber.

The sub-panel includes an upper panel that covers and expands the active vent from the outside of the airbag cushion, and is connected to one side of the panel and expands and expands larger than the upper panel, and is folded to expand and expands smaller than the airbag cushion. A foldable panel including a panel is provided.

In addition, the sub-panel may be expanded by introducing gas when the upper panel is expanded, and the foldable panel may be folded a plurality of times so that the folded panel expands larger than the upper panel to form a folding part.

In addition, the folding part may be folded so as to be stacked in proximity to the center from both sides around the center.

In addition, in the folding panel, the folding part may be installed toward the airbag cushion.

In addition, the sub-panel may be installed to inflate toward the center fascia of the vehicle when the airbag cushion is in full bloom.

In addition, when gas flows toward the sub-panel, the size of the active vent may be adjusted to control the expansion timing of the sub-panel.

In addition, the sub-panel may be sealed so that the folded panel is inclined to the upper panel.

Details of other embodiments are included in the detailed description and drawings.

According to the passenger airbag device of the present invention, one or more of the following effects are provided.

According to the passenger-seat air exhaust apparatus of the present invention, when the vehicle is inclined at a predetermined angle, when the occupant moves toward the center fascia, when the occupant moves toward the center fascia, the vehicle collides with the subchamber, thereby reducing injury to the occupant.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a plan view showing a vehicle according to an inclined collision test of the prior invention;
2 is a front view showing the passenger seat airbag device according to the present invention,
3 is a side view showing the side of the airbag cushion shown in FIG. 2;
4A is a plan view showing the folded panel shown in FIG. 2;
4B is a plan view showing the configuration of the airbag cushion shown in FIG. 2;
5 is a front view showing a collision of a passenger with the airbag cushion of FIG. 2;
6 is a side view illustrating a collision of a passenger with the airbag cushion of FIG. 5.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in a variety of different forms, and only these embodiments make the disclosure of the present invention complete, and are common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same components throughout the specification.

Hereinafter, the present invention will be described with reference to the drawings for explaining a passenger seat airbag device according to embodiments of the present invention.

2 is a front view showing the passenger seat airbag device according to the present invention, FIG. 3 is a side view showing the side of the airbag cushion shown in FIG. 2, and FIG. 4A is a plan view showing the foldable panel shown in FIG. 2, and FIG. 4B Is a plan view showing the configuration of the airbag cushion shown in FIG. 2, FIG. 5 is a front view showing a collision of a passenger with the airbag cushion of FIG. 2, and FIG. 6 is a side view showing a collision of a passenger with the airbag cushion of FIG. 5.

A preferred passenger seat airbag device can be changed by a person skilled in the art, and in the embodiment of the present invention, it is a passenger seat airbag device.

2 is a front view showing a passenger seat airbag device according to the present invention, and FIG. 3 is a side view showing a side surface of the airbag cushion shown in FIG. 2.

The passenger seat airbag device according to the present invention will be described with reference to FIGS. 2 and 3,

The inflator discharged by generating gas, the airbag cushion 10 in which the active vent 15 is formed so that the gas is partially discharged, and the active vent expands with the gas discharged from the active vent 15 to form the subchamber SC. It includes a sub-panel covering 15).

The airbag cushion 10 is inflated with gas generated from the inflator, and an active vent 15 is formed to partially discharge the gas. The airbag cushion 10 is provided with a plurality of panels. The airbag cushion 10 is provided with a main panel in which the occupant collides, and a plurality of side panels sewn on both sides of the main panel. A plurality of side panels are sewn along the edge of the main panel to form an inner main chamber. The gas generated from the inflator is introduced into the main chamber, filled and deployed. A general vent is formed on at least one of the plurality of side panels so that internal gas is partially discharged to the outside, and an active vent 15 is formed to control the deployment force of the airbag cushion 10. In the present invention, it would be preferable that the active vent 15 is formed toward the center fascia.

The active vent 15 partially discharges gas in the airbag cushion 10, that is, in the main chamber to the outside. The active vent 15 discharges gas inside the airbag cushion 10 toward the sub-panel formed by sewing the sub-panel. When a predetermined time elapses, the tether release device connected to the active vent 15 releases the tether connected to the active vent 15 so that the active vent 15 is completely opened and gas is discharged to the outside.

At this time, the timing at which the gas inside the airbag cushion 10 is discharged may be controlled by the tether release device connected to the vent cover 18 covering the active vent 15. A sub-panel covering the active vent 15 is installed so as to inflate by the gas discharged from the airbag cushion 10.

FIG. 4A is a plan view showing the folded panel shown in FIG. 2, and FIG. 4B is a plan view showing the configuration of the airbag cushion shown in FIG. 2.

Referring to FIG. 4A, the sub-panel is installed to inflate toward the center fascia 3 of the vehicle when the airbag cushion 10 is in full bloom. When gas flows toward the sub-panel, the size of the active vent 12 may be adjusted to control the expansion timing of the sub-panel.

The sub-panel is connected to an upper panel 20 that covers the active vent 12 from the outside of the airbag cushion 10 and expands, and is connected to one side of the upper panel 20 to expand and expand larger than the upper panel 20. A folding panel 30 that expands smaller than the cushion 30 is provided. The sub-panel is sealed so that the foldable panel 30 is inclined to the upper panel 20.

When the upper panel 22 is expanded, the sub-panel is expanded by introducing gas, and the folded panel is folded a plurality of times so that it expands larger than the upper panel 20 to form a folding part (F).

The subpanel is installed to cover the active vent 15 so that the gas inside the airbag cushion 10 is discharged through the active vent 15 to form the subchamber SC. The sub panel is sealed on the side panel 12 of the airbag cushion 10. The sub-panel is provided larger than the size of the active vent 15 and is installed to be inclined in a direction toward the passenger.

When the vent cover 18 is opened, the sub-panel is expanded by gas passing through the active vent 15. The subpanel is inflated with gas introduced from the airbag cushion 10. At this time, the subpanel is inflated to be smaller than the airbag cushion 10. A folded panel 30 is sewn on one side of the sub-panel and sewn to and fixed to the side panel 12.

The folding panel 30 is provided by being folded a plurality of times. The foldable panel 30 is folded by the width of the sub-panel. The folded panel 30 is sealed so that the gas is introduced and deployed to one side of the sub-panel, and is inflated with the gas introduced from the inside of the airbag cushion 10. One side of the folded panel 30 is sealed with one side of the subpanel and the other side is sealed with the airbag cushion 10 so that the gas inside the airbag cushion 10 is introduced and filled. The folding part F is folded so as to be stacked in proximity to the central portion CL on both sides of the central portion CL as the center. In the folding panel 30, the folding part F is installed toward the airbag cushion 10.

More specifically, referring to FIG. 4A, first, (a) is a foldable panel 30 in a rectangular shape in a horizontal direction and folded from the left and right to the center (CL) in the longitudinal direction, respectively, as shown in (b). The panel 30 becomes a folding part (F). The shape at this time is the same as (c) obtained by cross-sectioning A-A in (b). The folding panel 30 is installed so that the folding part F faces the side panel 12. The folding part (F) is temporarily folded and fixed, and then, when the folded panel 30 is expanded, the temporary folding is torn off to form a subchamber (SC).

The operation of the passenger seat airbag device according to the present invention configured as described above will be described as follows.

5 is a front view showing a collision of a passenger with the airbag cushion of FIG. 2, and FIG. 6 is a side view showing a collision of a passenger with the airbag cushion of FIG. 5.

Referring to FIGS. 5 and 6, first, when a car accident occurs, gas is generated from an inflator, not shown, and flows into the airbag cushion 10, and accordingly, the airbag cushion 10 is expanded and deployed. Start. The gas introduced into the airbag cushion 10 at the initial stage of deployment is not discharged to the outside of the airbag cushion 10, so that the head of the passenger can be restrained early.

The airbag cushion 10 is inflated to a predetermined size, and the vent cover 18 closing the active vent 15 is released by a tether release device (not shown) when the passenger's head is loaded. ) Open.

The gas inside the airbag cushion 10 flows into the subpanel through the open active vent 15. In the sub-panel, the head of the occupant is impacted by the sub-chamber SC, which is expanded by filling with gas, so that the amount of collision is absorbed by the sub-chamber SC, thereby preventing injury.

In the above, preferred embodiments of the present invention have been shown and described, but the present invention is not limited to the specific embodiments described above, and without departing from the gist of the present invention claimed in the claims, Various modifications may be possible by those of ordinary skill in the art, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

10: cushion 15: active vent
18: vent cover 20: subpanel
30: folding panel

Claims (8)

An inflator in which gas is generated and discharged;
An airbag cushion having an active vent formed so that the gas is partially discharged;
Including; a sub-panel covering the active vent so that the sub-chamber is formed by expanding with gas discharged from the active vent,
The sub-panel,
An upper panel inflating by covering the active vent from the outside of the airbag cushion,
It is connected to one side of the upper panel and expands and expands larger than the upper panel, and includes a folding panel that is folded to expand and expands smaller than the airbag cushion,
The sub-panel is a passenger airbag device in which the folding panel is inclined to the upper panel.
delete An inflator in which gas is generated and discharged;
An airbag cushion having an active vent formed so that the gas is partially discharged;
Including; a sub-panel covering the active vent so that the sub-chamber is formed by expanding with gas discharged from the active vent,
The sub-panel,
An upper panel inflating by covering the active vent from the outside of the airbag cushion,
It is connected to one side of the sub-panel and expands and expands larger than the upper panel, and includes a foldable panel that is folded to expand and expands smaller than the airbag cushion,
The sub-panel is expanded by introducing gas when the upper panel is expanded, and the foldable panel is folded a plurality of times so that the foldable panel expands larger than the upper panel to form a folding part,
The folding part is a passenger seat airbag device that is folded so as to be stacked in proximity to the center at both sides around the center.
An inflator in which gas is generated and discharged;
An airbag cushion having an active vent formed so that the gas is partially discharged;
Including; a sub-panel covering the active vent so that the sub-chamber is formed by expanding with gas discharged from the active vent,
The sub-panel,
An upper panel inflating by covering the active vent from the outside of the airbag cushion,
It is connected to one side of the sub-panel and expands and expands larger than the upper panel, and includes a foldable panel that is folded to expand and expands smaller than the airbag cushion,
The sub-panel is expanded by introducing gas when the upper panel is expanded, and the foldable panel is folded a plurality of times so that the foldable panel expands larger than the upper panel to form a folding part,
The folding panel is a passenger seat airbag device in which the folding part is installed toward the airbag cushion.
The method of claim 1,
The sub-panel is installed to inflate toward the center fascia of the vehicle when the airbag cushion is in full bloom.
According to claim 1
A passenger seat airbag device that adjusts the inflation timing of the sub-panel by controlling the size of the active vent when gas flows toward the sub-panel.
delete An inflator in which gas is generated and discharged;
An airbag cushion having an active vent formed so that the gas is partially discharged;
Including; a sub-panel covering the active vent so that the sub-chamber is formed by expanding with gas discharged from the active vent,
The sub-panel,
An upper panel inflating by covering the active vent from the outside of the airbag cushion,
It is connected to one side of the sub-panel and expands and expands larger than the upper panel, and includes a foldable panel that is folded to expand and expands smaller than the airbag cushion,
When the tether release device connected to the active vent elapses for a predetermined time, the tether connected to the active vent is released to completely open the active vent to inflate the subpanel.

Images