KR100452290B1 - Horizontal mounting type assistant air bag structure improved development performance - Google Patents

Abstract

The present invention relates to a horizontally mounted passenger seat airbag structure for improving deployment performance, and more particularly, to a door partitioned by an instrument panel, a rupture line formed inside the instrument panel, and coupled to the instrument panel and the door inner surface. A door plate, a cushion housing having an opening formed at a lower end of the door plate, a cushion accommodated in the cushion housing, a front housing positioned in front of the cushion housing, an inflator disposed inside the front housing, and the inflator And a retainer disposed between the cushion housing and the cushion housing, wherein the front housing is located at the front of the vehicle of the cushion housing, and the front housing and the cushion housing are integrally formed, and the retainer is formed in the cushion housing. The hinge part is coupled to the top of the retainer to rotate The horizontally mounted passenger seat airbag structure with improved cushion deployment performance has an arc shape centering on the hinge portion, and while the retainer rotates when the air cushion is deployed, the cushion pushes the door plate as a whole. Easily deployed even when not filled, the entire folded air cushion pushes the door plate, which acts as a constant force on the rupture line to improve the deployment performance to prevent the front part of the instrument panel from rupturing. It's about structure.

Description

HORIZONTAL MOUNTING TYPE ASSISTANT AIR BAG STRUCTURE IMPROVED DEVELOPMENT PERFORMANCE}

The present invention relates to a horizontally mounted airbag structure having improved deployment performance disposed on the passenger seat side of an automobile instrument panel, and a feature of the present invention is that a front housing is disposed at a vehicle front part of a cushion housing for accommodating a cushion, and the cushion As the housing and the front housing are integrally formed, the passenger seat airbag can be mounted in a narrow space, and the front housing is arranged to be in close contact with the instrument panel, so that the opening and closing part is attached to the instrument panel when the air cushion is deployed. It is possible to prevent damage caused by the damage, and the retainer connected to the cushion is rotated so that the entire folded cushion pushes the panel even if gas is not constantly filled in the cushion, thereby improving the deployment performance to prevent the eccentric development of the air cushion. A mounting passenger seat airbag structure.

In general, an automobile is provided with an airbag system as a means for protecting occupants such as a driver during a collision while driving. Such an airbag system is provided in a driver's seat and a passenger seat.

In the case of the airbag system installed in the passenger seat among these airbag systems, the door is mounted while the airbag module is installed inside the instrument panel in order to install it. When the airbag module inside is inflated to explode while opening the door instantaneously to achieve the function of the airbag.

In addition, in recent years, the passenger compartment door portion in which the airbag of the instrument panel is installed, forms an invisible incision line from the outside, and when the airbag module operates, the airbag is inflated by the invisible incision line and the door portion is incised. Achieving the function of an airbag.

On the other hand, the air bag installed in the above-described conventional passenger seat is a domestic patent publication number (patent 2002-0055969), publication number (patent 2002-0065459), publication number (patent 2002-0057862), publication number (patent 1997-0061648) See.

First, Figure 1 is a perspective view showing the installation position of a general vehicle airbag, with reference to the accompanying drawings, the conventional configuration and operation will be described as follows.

In front of the driver's seat (5) and the passenger seat (6) in front of the driver's seat (5) and the passenger seat (6) located in front of the car in the front crash during high-speed driving Each one cushion 42 is installed, the driver's seat side (5) cushion is installed without a separate storage space under the steering wheel, the cushion 42 is installed on the passenger seat side (6) of the passenger seat (6) It is located above the glove box 7 located in the electrostatic room and provided with an additional airbag storage chamber 2 on the instrument panel 10 which is the curved surface 9.

On the other hand, although not shown in detail, the cushion 42 receives the inflator 70 and the inflator 70 to be exploded by receiving a signal from the collision detection sensor as described, the inflator accommodation portion (the present invention "Front housing 50" and the inflator accommodating portion 50, the inflator 70 is exploded by the suction of gas, the cushion housing 42 for receiving the cushion 42 to be expanded It is composed.

In addition, when the door-mounted seating portion 8 into which the door 20 is seated is lower than the surface of the instrument panel 10 and the door 20 is seated, the surface of the door 20 is instrumented. It is comprised so that it may become a somewhat curved surface similar to the curved surface 9 used as the surface of the panel 10. FIG.

As described above, the conventional passenger seat airbag structure has a cushion housing 40 disposed at the lower end of the instrument panel 10 on which the door 20 is formed, as shown in the side cross-sectional view of FIG. 2, and the cushion housing 40. At the bottom, an inflator accommodating part 50 accommodating the inflator 70 is disposed.

In addition, the lower end portion is coupled to the steering support member 90 to fix the inflator accommodation portion 50.

Meanwhile, the tear lines 21 and 21 ′ which divide the instrument panel 10 and the door 20 are formed on the outer surface of the instrument panel 10.

However, in the structure of the conventional passenger seat airbag configured as described above, since the rupture lines 10 and 21 'and the slot 22 are exposed to the outer surface, the beauty of the instrument panel 10 is reduced, and the cushion housing 40 ) And the inflator accommodating part 50 are separated, and since the support part is comprised in the vertical structure arrange | positioned at the lower end, it had to be mounted in a narrow space.

For this reason, the glove box had to be configured relatively small, and there was a problem that vibration and shock were generated, and when the air cushion was deployed, the door hit the rear part of the instrument panel, and the instrument panel was also damaged. It was.

In addition, since the gas filled in the air cushion is not uniformly distributed, the concentrated stress of the force acting on the panel door is generated, so that the eccentric development in which the panel parts other than the bursting line is ruptured is often performed.

In order to solve the problems as described above, the present invention, the cushion housing is disposed on the lower side of the door plate, the front housing which is accommodated in the inflator is disposed in the front of the vehicle of the cushion housing, the front housing and the cushion housing integrally Molding, but the front housing is coupled to be in close contact with the support of the door plate, to provide a horizontally mounted passenger seat airbag structure with improved deployment performance, the purpose is to.

1 is a perspective view showing a state in which a door of a general vehicle airbag is separated.

Figure 2 is a side cross-sectional view showing a coupled state of a typical passenger car airbag.

Figure 3 is a side cross-sectional view showing a coupled state of the passenger seat airbag of the present invention.

Explanation of symbols on the main parts of the drawings

10-instrument panel 20-door

21, 21 '-Break Line 22-Slot

30-Door Plate 31-Support

32-openings 33-couplings

34-recess 40-cushion housing

41-opening 42-cushion

50-front housing 60-retainer

61-Hinge 70-Inflator

90-Steering Support Member

In order to achieve the above object, the present invention relates to a horizontally mounted passenger seat airbag structure for improving deployment performance, and more particularly, a door partitioned by an instrument panel and a rupture line formed inside the instrument panel. A door plate coupled to the instrument panel and the inner surface of the door, a cushion housing having an opening formed at a lower end of the door plate, a cushion accommodated in the cushion housing, a front housing positioned in front of the cushion housing, and the front of the cushion housing. An inflator disposed inside the housing and a retainer disposed between the inflator and the cushion housing, wherein the front housing is located at the front of the vehicle of the cushion housing, and the front housing and the cushion housing are integrally formed. And the retainer is rotated in the cushion housing. Additional hinge is coupled to the upper lock retainer, written, so the cushion housing so as to have the arc shape with the center of the hinge portion, it is possible to achieve the object of the present invention.

Figure 3 is a side cross-sectional view showing a coupled state of the passenger seat airbag of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the horizontally mounted passenger seat airbag structure to improve the present inventors performance.

Prior to the description, since the configuration and operating state according to the present invention is a structure of a general passenger airbag, reference is made to the prior art and the accompanying Figures 1 and 2, and the reference numerals are the same.

First, the instrument panel, which is located in the front of the vehicle interior, can install the instrument panel, audio, airbag, etc., and also serves to block the noise transmitted from the engine room.

Breaking lines 21 and 21 ′ are formed inside the instrument panel 10.

Due to the burst lines 21, 21 ′, the inner surface has a door 20, and the outer surface is partitioned by the instrument panel 10.

In addition, the door plate 30 is formed such that the instrument panel 10 and the inner surface of the door 20 are coupled.

The door plate 30 forms a slot 22 having a "c" shape.

In addition, the door plate 30 is formed of a coupling part 33, an opening and closing part 32, and a support part 31 by the slot 22.

Here, the "c" shaped slot 22 is configured to be connected to the opening and closing portion 32 and the coupling portion 33 when viewed in the plane of the instrument panel.

However, the front side of the vehicle is a portion where the slot 22 is not formed. That is, the support part 31 side is called.

In addition, the shape of the slot 22 may be irregularly cut so that the overall shape has a "c" shape.

On the other hand, the tear lines 21 and 21 'are formed to have a larger section than the slot 22.

In addition, a groove 34 is formed in an upper portion between the support part 31 and the opening and closing part 32.

In addition, the opening and closing part 32 is configured to have a gradually smaller thickness from the groove 34 toward the coupling part 33.

On the other hand, the door plate 30 and the instrument panel 10 is coupled to be in close contact with the outer portion of the tear lines (21, 21 ').

In addition, a cushion housing 40 having an opening 41 formed at a lower end of the door plate 30 is disposed.

The cushion 42 is accommodated in the cushion housing 40, and the cushion 42 is connected to the retainer 60.

The retainer 60 may be rotated by forming a hinge portion 61 at an upper end portion of the retainer 60.

The hinge portion 61 is inserted and coupled to both sides of the cushion housing 40 by pins, and since the configuration and technology for the hinge coupling are generally known, a detailed description of the hinge portion 61 will be omitted. .

On the other hand, the cushion housing 40 has an outer surface of the cushion housing 40 has an arc shape around the hinge portion 61 so that the retainer 60 can be rotated naturally.

In addition, the front housing 50 is disposed in front of the vehicle of the cushion housing 40, the inflator 70 is accommodated in the front housing 50.

The front housing 50 is disposed to be in close contact with the support part 31 coupled to one side of the door plate 30.

In addition, the cushion housing 40 and the front housing 50 to be integrally formed.

The front portion and the lower portion of the front housing 50 is to be coupled to the fixing portion (not shown).

Referring to the operating state of the present invention the horizontal mounting passenger seat airbag structure configured as described above are as follows.

When the vehicle collides, a shock sensor (not shown) that detects the shock applies an output signal to the inflator 70.

The inflator 70 that receives the output signal explodes and is delivered to the retainer 60, and the retainer 60 rotates around the hinge portion 61.

At the same time, the cushion 42 expands and pushes the door plate 30.

At this time, the door plate 30 is torn by the rupture lines (21, 21 ').

However, since the opening and closing portion 32 formed on the door plate 30 has a thickness that gradually decreases from the groove 34 to the coupling portion 33, the tear line 21 'between the coupling portion 33 and the opening and closing portion 32 is provided. ) Is the first to burst.

The cushion 42 is pushed out of the door plate 30 and the door 20, the door

20 and the door plate 30 are rotated to open in the groove 34 formed between the opening and closing portion 32 and the support portion 31.

Therefore, the air cushion 42 is unfolded and the safety of the passenger can be achieved.

As described above, the passenger seat airbag structure can be mounted in a narrow space by providing a horizontally mounted passenger seat airbag structure with improved deployment performance, so that the size of the glove box receiving portion is not reduced, and the cushion is inflated more precisely. We can plan safety.

As described above, the present inventors have the following effects due to the horizontally mounted passenger seat airbag structure with improved deployment performance.

First, as the retainer rotates when the air cushion is deployed, the cushion pushes the door plate as a whole, so that the gas is easily developed even if the gas is not constantly filled in the cushion.

Second, as the entire folded air cushion pushes the door plate, it acts with a constant force on the bursting line to prevent the front part of the instrument panel from breaking.

Third, as the retainer rotates, a certain space is created inside the cushion housing, so that the gas generated in the inflator flows once in the cushion, so that the entire cushion is constantly filled with gas, thereby preventing eccentric development of the cushion.

Fourth, since the tear line is formed to have a larger partition than the "c" shaped slot formed in the door plate, the door and the door plate are not recessed due to the impact applied from the outer surface of the door.

Fifth, the door plate is formed to have a smaller thickness gradually from the groove toward the coupling portion side, so that the door plate opens and closes more naturally by receiving a lot of force on the coupling portion side during opening and closing.

Sixth, in the combination of the instrument panel and the door plate, the cushion housing can be coupled to the door plate to be coupled at the outer side of the rupture line, it is advantageous for vibration or shock.

Due to the effects as described above, the horizontal mounting type airbag structure for deployment performance improvement according to the present invention has an advantage of mounting the passenger seat airbag in a narrow space compared to the vertical structure.

Claims (3)

An instrument panel; A door partitioned by a tearing line formed inside the instrument panel; A door plate coupled to the instrument panel and the inner surface of the door; A cushion housing having an opening formed at a lower end of the door plate; A cushion accommodated inside the cushion housing; A front housing positioned in front of the cushion housing; An inflator disposed inside the front housing; A retainer disposed between the inflator and the cushion housing; The front housing is Located in the vehicle front portion of the cushion housing, the front housing and the cushion housing is integrally formed, The hinge part is coupled to the upper end of the retainer to rotate the retainer in the cushion housing, The cushion housing is a horizontal mounting passenger seat airbag structure with improved deployment performance, characterized in that to have a shape of an arc around the hinge portion. The method of claim 1, The door plate is a slot of the "c" shape is formed, The tearing line is a horizontal mounting passenger seat airbag structure with improved deployment performance, characterized in that formed to have a larger compartment than the slot. The method according to claim 1 or 2, The front housing is; Horizontal mounting passenger seat airbag structure to improve the deployment performance, characterized in that arranged to be in close contact with the support coupled to one side of the door plate.