KR200269585Y1 - the forward-inflation-curbed SRS airbag - Google Patents

Abstract

The present invention relates to an SRS airbag, in which the air bubble bursts in front of the airbag when the airbag is blown up and prevents the air bubble from blown forward by the force of the gas to prevent the passenger from hitting the occupant. Provides airbags designed to increase shock absorption during secondary collisions.

Description

Inflation angle control airbag {the forward-inflation-curbed SRS airbag}

The present invention relates to an SRS airbag.

SRS airbags are passenger protection devices that protect car passengers from the impact of a collision. The airbag system consists of a sensing system and an airbag module. The sensing system consists of a sensor, a battery and a diagnostic device. The airbag module consists of an airbag and a working gas inflation device.

In the event of a crash, the passenger will bounce forward by the law of inertia, in the case of the driver, the head or chest will be injured by the handle, or in the case of the passenger seat, the windshield will be injured. In addition, it is designed to swell in advance between windshields and absorb the impact by hitting the passengers and then immediately turn off to obstruct their view.

However, an airbag with this mechanism is an excellent protective device that prevents occupants from hitting hard objects such as handles or windshields in the event of a crash, or the force of the inflating force is very strong and can cause injury to the body.

In developed countries, including the United States, to reduce the likelihood of such accidents a little, the government has instructed the elderly to not ride in the passenger seat, and if there are many cases in which the elderly must be carried in the passenger seat, there is a switch that prevents the airbag from popping up. It is recommended to install a provided airbag and a low inflation pressure airbag.

But all of these attempts are nothing but fundamental solutions.

The present invention is to improve the structure of the airbag of the airbag module of the SRS airbag, so that when the airbag inflates the airbag inflates sequentially to absorb the force from the body when the airbag and the body hit the maximum and minimize the impact on the body.

1 is a top and bottom cross-sectional view of a conventional general inflated SRS airbag,

2 is related to the present invention inflated angle control airbag,

(a) is a vertical section,

(b) is an up-down cross-sectional view which expanded the gas inflow and outflow pipe of the inflator which is the dotted-circle part of (a),

(c) is a front view of the gas inlet and outlet pipe of the inflator, which is the dotted circle portion of (a),

Figure 3 is an explanatory view of the appearance of the existing general airbag and the present invention inflating angle adjustment airbag inflated

(d) and (e) are descriptions of general airbags,

(f) and (g) are explanatory diagrams for the inflation angle control airbag.

※ Explanation of code for main part

1. Gas inlet and outlet of inflator 2. Gas passage of inlet and outlet

3. Gas entry pipe core 4. Gas entry pipe core

5. Gas pipe trumpet 6. Deep gas cylinder and ball

10. Main bubble 11. Main bubble Gas receiving space

20. Auxiliary bubble 21. Auxiliary bubble gas receiving space

22. Inter-Bubble Gas Cylinders and Balls

The present invention relates to an SRS airbag, and more particularly, to improve the original function of the airbag by improving the structure of the airbag, which receives gas from the airbag module and bumps the passenger's body to absorb shocks. To get rid of.

Hereinafter, described in detail by the accompanying drawings as follows.

Figure 1 shows a conventional airbag, the conventional airbag is made of nylon plain weave cloth coated with neoplan or silicon, the sensor detects when the vehicle crash accident, the inflator gas of the airbag if the inflator explodes gas Fill the gas into the gas receiving space 11 of the airbag bubble through a furnace (2), the airbag inflates as it inflates, bumps into the occupant's body to absorb the shock, and then The operation is completed by extracting the gas in the main bubble gas accommodating space 11 into the inflator gas furnace 2 so as not to cover the gas.

Figure 2 relates to an inflation angle control airbag of the present invention.

The characteristics of the inflation angle control airbag can be divided into bubble and gas inlet and outlet pipe.

First, the air bubbles are divided into two, and there is an air bag main air bubble 10 which absorbs a shock primarily by directly contacting the occupant's body. Acts as a passage for supplying gas to the main bubble 10 after it is inflated and prevents it from excessively jumping forward, and absorbs the shock secondary from the back when the main bubble collides with the passenger to absorb the shock. The auxiliary bubble 20 is formed in funnel shape. A plurality of inter-bubble gas passage holes 22 are formed at two-thirds of the auxiliary bubbles from the inner side gas inlet and outlet 1 of the auxiliary bubbles.

The gas inlet and outlet pipe 1 of the inflator opens outward to form a gas inlet and outlet trumpet 5, and has a seam in the gas inlet and outlet tube 1 to form a gas inlet and outlet tube 3 and a gas inlet and outlet head 4. In the head of the gas inlet and outlet, four holes are drilled to form the shim head gas passage hole 6.

The operation of the inflation angle control airbag is as follows.

In the event of a collision, the gas explodes and bumps into the gas passage (2) and the entry head (4) of the gas entry pipe (1) and turns outwards and is led to them and the gas entry pipe trumpet (5) to the outside [(a) <Flow> of the flow flows along the outer wall of the bubble to create a vortex at the end of the bubble and then completely expands the secondary bubble gas containing space 21 formed in the secondary bubble 20 of the airbag. At this time, some of the gas enters the main gas receiving space 11 through the deep gas cylinder and the ball (6). Then, the gas continues to fill the main gas receiving space 11 through the inter-bubble gas passage hole 22 (flows <b> and <d> in FIG. A).

3 shows the inflation results of the normal airbag and the inflation angle control airbag.

In general air bags, the inflation initial bubble (d) is completely inflated, and the front and back lengths are longer than the bubble (e) when the shape of the bubble is in place {A> A '}; The top and bottom width is short {B <B '}.

On the contrary, in the inflation angle control airbag, the front and rear lengths are shorter and the upper and lower widths are long {C <C '; D> D'} when comparing the bubbles f at the beginning of the inflation with the bubbles g set therein.

This prevents air bubbles from hitting the occupant during an airbag explosion.

In addition, the gas receiving space is divided at the moment when the airbag collides with the body of the occupant, thereby absorbing the shock step by step, thereby improving the shock absorption ability.

As described above, when the vehicle collides, the airbag bursts to prevent the bubble from popping out toward the occupant and hitting the occupant's body due to the strong force of the gas flowing into the bubble when the bubble is inflated. When the air bounces forward and the body hits the airbag, the gas is received in two stages, absorbing more of the body's force and reducing the impact on the occupant.

Claims (3)

In the bubble of the SRS airbag system, It has a secondary bubble, which is connected to the main bubble, has an inter-bubble gas cylinder and a ball 22 in the bubble, and expands the air bag widely by first receiving and passing the gas filled in the main bubble, which comes into contact with the body to absorb shock. Featuring an SRS airbag. SRS airbag system, characterized in that the gas entrance and exit pipe leading the gas from the inflator to the bubble in the SRS airbag system, the gas entrance and exit seam (3) and the head (4) to guide the outside without sending the gas forward. The SRS airbag system according to claim 2, characterized in that the head (4) has a head gas passage hole (6).