KR101607450B1 - Chute of passenger air bag - Google Patents

Abstract

The present invention relates to a chute of an airbag for a passenger, comprising: a first chute vibratingly welded to a lower side of an instrument panel; a first chute corresponding to a part of the instrument panel; A second chute, and a hinge unit for hinging the first chute with the second chute, and the hinge unit includes a plurality of hinge units connecting the first chute and the second chute.

The present invention can reduce the thickness of each hinge member and improve the reaction speed by providing a plurality of hinge members for connecting separate chutes of passenger airbags unlike the prior art.

Passenger, airbag, suit, hinge, double

Description

{CHUTE OF PASSENGER AIR BAG}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passenger airbag suit, and more particularly, to a passenger airbag passenger airbag having a plurality of hinge members for connecting separate chutes of the passenger airbag, thereby reducing the thickness of each hinge member, To the passenger airbag suits.

Generally, a passenger air bag refers to an air bag for safety of passengers aboard a seat (passenger seat) next to the driver's seat. The passenger airbag is a safety assisting device for preventing an occupant who rides in the passenger seat from directly hitting a part of the body such as a knee, a head, a chest, etc. against an instrument panel or a front glass when the vehicle collides.

The passenger airbag is installed inside the passenger seat door portion of the instrument panel.

Particularly, in the deployment structure of the conventional passenger airbag, an airbag door plate is fixed to the door plate fixing part formed integrally with the instrument panel after the airbag wearing suit is fixed to the instrument panel by vibration welding, Fix by heat staking method.

At this time, the door plate forms a hinge portion, thereby preventing scattering of the door plate when the passenger airbag is deployed.

The conventional hinge portion of the door plate for passenger airbags has a problem in that the deployment time is slowed because the reaction speed is slow because the hinge portion of the door plate for the passenger airbag is formed relatively thick in order to prevent cracking and breakage during development of the passenger airbag. Therefore, there is a need for improvement.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a hinge for connecting a set of hinges to a set of hinges, It is possible to improve the durability of the passenger airbag as it can perform the function by the other hinge even when cutting one of the hinges, The purpose is to provide suits.

A chute of a passenger airbag according to an embodiment of the present invention includes: a first chute vibratingly welded to an underside of an instrument panel; a first chute corresponding to a part of the instrument panel; a lower portion of a door tilted when the passenger airbag is deployed; And a hinge unit for hinge-connecting the first and second suites, wherein the hinge unit comprises a plurality of units connecting the first and second suites.

The hinge unit is divided into a first hinge member and a second hinge member that connect the first chute and the second chute, respectively, the first hinge member is formed on the second hinge member, The curvature of the second hinge member is larger than that of the second hinge member.

The first hinge member and the second hinge member may be connected to each other by a connecting member.

As described above, the passenger airbag suit according to the present invention has a plurality of hinges connecting the fixed chute portion and the chute portion which is tilted when the passenger airbag is deployed, Since the thickness of each hinge can be reduced, the reaction speed of the chute portion can be improved.

In addition, the present invention can improve durability by performing the function of another hinge even when cutting one of the hinges.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a passenger airbag suit according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a view showing a chute of a passenger airbag according to an embodiment of the present invention, and FIG. 2 is an enlarged view showing a double hinge structure of a passenger airbag suit according to an embodiment of the present invention.

Referring to FIG. 1, a passenger airbag suit according to an embodiment of the present invention includes a first chute 10, a second chute 20, and a hinge 30.

Here, the first chute 10 refers to a region where the first chute 20 is fixed by vibration welding to the lower side of the instrument panel 2 of the vehicle, and the second chute 20 is bent when the passenger airbag 6 of the instrument panel 2 is deployed And is fixed to the underside of the door 4 by vibration welding.

The second chute 20 is bent together with the door 4.

Of course, the first chute 10 may be fixedly coupled to the housing 8 for the airbag.

Therefore, it is preferable that the second chute 20 is rotatably connected to the first chute 10.

Thus, the first chute 10 and the second chute 20 are connected to the hinge 30.

Here, the first chute 10 and the second chute 20 are preferably made of the same material, and the first chute 10 and the second chute 20 can be modified into various shapes.

The hinge portion 30 is formed of a plurality of strands and is illustrated as including a first hinge member 32 and a second hinge member 34 for convenience.

The first hinge member 32 and the second hinge member 34 serve to connect the first chute 10 and the second chute 20, respectively.

In addition, the first hinge member 32 and the second hinge member 34 are preferably made of a flexible material.

Therefore, the second chute 20 is rotatable with respect to the first chute 10 by the hinge 30. [

The first chute 10 and the second chute 20 are preferably made of the same material as the first hinge member 32 and the second hinge member 34. The first chute 10 and the second chute 20 may be made of the same material as the first hinge member 32 and the second hinge member 34, (20) is made of hard or soft.

On the other hand, each of the first hinge member 32 and the second hinge member 34 is not limited to the number.

The sum of the thicknesses of the first hinge member 32 and the second hinge member 34 is preferably the same as or similar to one hinge member previously provided.

That is, each of the first hinge member 32 and the second hinge member 34 is formed thinner than the conventional one.

This is for the purpose of improving the response speed of the second chute 20 when the passenger airbag 6 is deployed.

Also, since the hinge portion 30 is formed of a plurality of strands, the hinge portion 30 can perform its function even at the time of breaking, and the life of the hinge portion 30 can be extended or replaced.

Meanwhile, the first hinge member 32 and the second hinge member 34 may be formed in various shapes such as a convex or zigzag shape downward.

It is preferable that the first hinge member 32 and the second hinge member 34 are formed to be bent so as to stably support the second chute 20 being tilted.

In particular, the first hinge member 32 and the second hinge member 34 may be arranged in parallel in the left-right direction, but are preferably arranged in the vertical direction.

This is because when either one of the first hinge member 32 and the second hinge member 34 is cut when the first hinge member 32 and the second hinge member 34 arranged in the lateral direction are arranged side by side, , The second chute 20 may be twisted and tilted, resulting in defective development.

Therefore, it is preferable that the first hinge member 32 is formed on the second hinge member 34.

In addition, it is preferable that the curvature of the first hinge member 32 is formed to be larger than that of the second hinge member 34.

The curvature of the first hinge member 32 is larger than the curvature of the second hinge member 34 because the first hinge member 32 and the second hinge member 34 As shown in Fig.

In addition, the first hinge member 32 and the second hinge member 34 are arranged at a predetermined clearance.

Of course, the second hinge member 34 may be formed on the upper side of the first hinge member 32.

At this time, the curvature of the second hinge member 34 is formed to be larger than the curvature of the first hinge member 32.

Meanwhile, when the second chute 20 is rotated, the first hinge member 32 and the second hinge member 34 are preferably simultaneously hinged while being restrained.

For example, it is preferable that the first hinge member 32 and the second hinge member 34 are connected to each other by the connecting member 36 in the same direction.

That is, the connecting member 36 serves to restrain the first chute 20 and the second chute 20 by restraining the first hinge member 32 and the second hinge member 34 together.

At this time, the connecting member 36 is preferably formed on both sides of the first hinge member 32 and the second hinge member 34.

That is, the connecting member 36 is preferably integrally formed with the first hinge member 32 and the second hinge member 34.

The hinge portion 30 may be formed integrally with the first chute 10 and the second chute 20 or may be formed integrally with the first chute 10 and the second chute 20, Or may be formed by adhesion.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the true scope of the present invention should be determined by the following claims.

1 is a view showing a chute of an airbag for a passenger according to an embodiment of the present invention.

2 is an enlarged view showing a double hinge structure of a chute of a passenger airbag according to an embodiment of the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

10: first suit 20: second suit

30: hinge portions 32, 34: first and second hinge members

Claims (3)

A first chute that is vibration-welded to the lower side of the instrument panel; A second chute corresponding to a part of the instrument panel and vibration-fused to a lower side of a door that is tilted when the passenger airbag is deployed to prevent scattering; And And a hinge unit for hinge-connecting the first chute and the second chute, The hinge unit includes a first hinge member and a second hinge member that connect the first chute and the second chute, respectively, Wherein the first hinge member is disposed on the second hinge member and has a curvature greater than a curvature of the second hinge member to prevent the second hinge member from colliding with the second hinge member when the second chute is swung, Wherein the first hinge member and the second hinge member are connected to a connecting member formed integrally with the second chute side edge to improve a supporting force of the second chute with respect to the first chute Airbag suits. delete delete

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