KR101560542B1 - Apparatus for coupling passenger airbag module - Google Patents

Abstract

The coupling device of the disclosed passenger-seat airbag module comprises: a chute having at least one fixing part coupled to the rear surface of the instrument panel and having a fixing hole at one side; At least one bracket provided at one side of the housing corresponding to the fixing piece and having a fixing hole and a corresponding bracket hole; An insertion rod inserted through the fixing hole and the bracket hole; And at least one of the upper and lower protruding regions of the insertion bar projecting from the fixing hole and the bracket hole so as to prevent the insertion rod from being separated from the fixing hole and the bracket hole is provided so as to be fitted in a direction orthogonal to the longitudinal direction of the insertion rod And at least one engaging plate contacting the at least one of the upper surface of the fastening piece and the lower surface of the bracket.

Description

[0001] APPARATUS FOR COUPLING PASSENGER AIRBAG MODULE [0002]

The present invention relates to a coupling device for a passenger-side airbag module capable of easily coupling and disengaging the passenger-side airbag module to the inside of the instrument panel.

A conventional passenger seat airbag module includes a housing in which an airbag is received in a folded state, an inflator installed at the bottom of the housing to generate a gas for inflating the airbag, and a door covering the opening of the housing. The door may be provided separately from the instrument panel or integrally formed in a specific area of the instrument panel by a tear line.

Conventionally, the passenger-side airbag module has the following coupling structure for coupling to the instrument panel. That is, a plurality of hooks are provided at predetermined intervals on one side of the airbag housing, and a plurality of brackets having fastening holes are provided on the other side with a predetermined gap. In addition, a plurality of fixing members are provided on one side of the instrument panel, with a supporting wall having a plurality of hook holes for inserting the hooks, and on the other side with fixing holes to be engaged by brackets and bolts.

Conventionally, a hook structure is provided on one side and a bolt fastening structure is provided on the other side in order to connect the housing of the passenger-side airbag module to the instrument panel. As such, since the conventional coupling structure includes the bolt fastening structure, it is troublesome in the operation of coupling the housing to the instrument panel and screwing and releasing the nut after inserting the bolt into the fastening hole and the fastening hole.

In addition, the bolt coupling structure can not quickly perform the coupling and separation of the housing and the instrument panel.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a coupling device for a passenger-seat airbag module that facilitates and quickens coupling and separation operations between a housing and an instrument panel constituting the passenger-seat airbag module.

It is another object of the present invention to provide a coupling device for a passenger-seat airbag module that can shorten the coupling and separation time between the housing and the instrument panel, thereby increasing product production and repair efficiency.

The object of the present invention is achieved by a chute having at least one fixing piece coupled to a rear surface of an instrument panel and having a fixing hole at one side thereof; At least one bracket provided at one side of the housing corresponding to the fixing piece and having a bracket hole corresponding to the fixing hole; An insertion rod inserted through the fixing hole and the bracket hole; And at least one of an upper and a lower protruding region of the insertion bar protruding from the fixing hole and the bracket hole so as to prevent the insertion rod from being separated from the fixing hole and the bracket hole in a direction perpendicular to the longitudinal direction of the insertion rod And at least one engaging plate having an incision hole with one side opened to be fitted to the upper surface of the fixing member and at least one engaging plate which is in contact with at least one of the upper surface of the fixing piece and the lower surface of the bracket .

In the coupling device of the passenger's seat airbag module according to the present invention, at least one outer periphery of the upper projecting region and the lower projecting region may be formed with a recessed groove so that the periphery of the cutting hole of the coupling plate is fitted.

In the coupling device of the passenger-side airbag module of the present invention, the concave groove may be formed in the entire outer periphery of at least one of the upper and lower protruding regions.

In the coupling device of the passenger's seat airbag module of the present invention, the clamping member has an upper engagement plate having an upper cutting hole to be fitted to an outer periphery of the upper projecting region, and contacting the upper surface of the securing piece; A lower engaging plate having a lower incision hole to be fitted to an outer periphery of the lower projecting region, the lower engaging plate contacting the lower surface of the bracket; And a connection plate having a length corresponding to a sum of the thickness of the fixing member and the thickness of the bracket and disposed between the upper and lower coupling plates to connect the upper and lower coupling plates.

In the coupling device of the passenger-side airbag module of the present invention, the upper and lower coupling plates and the coupling plate may be integrally formed.

In the coupling device of the passenger-side airbag module of the present invention, any one of the upper and lower protruding regions may have a diameter larger than the diameter of the fixing hole and the bracket hole.

In the present invention, at least one of the upper and lower engaging plates may further include an auxiliary layer for increasing a coupling force between the upper surface of the fixing piece and the lower surface of the bracket.

In the coupling device of the passenger-side airbag module of the present invention, the inner circumference of the incision hole may further include a release preventing member to increase the coupling force with the outer circumference of the insertion rod.

In the coupling device of the passenger-side airbag module of the present invention, the auxiliary layer and the separation preventing member may be made of any one material of rubber, silicone, and epoxy.

In the engaging device of the passenger-side airbag module according to the present invention, any one of the upper and lower protruding regions is formed to have a larger diameter than the diameter of the fixing hole and the bracket hole, and the clamping member has the upper protruding region And may include a lower protruding region disposed on the other side of the lower protruding region or a single engaging plate which is fitted on the outer circumference of the upper protruding region.

In the coupling device of the passenger's seat airbag module of the present invention, the coupling plate may further include at least one protrusion on one surface of the fixing piece which contacts the upper surface of the fixing piece or the lower surface of the bracket.

In the coupling device for the passenger-seat airbag module according to the present invention, the chute is provided on the other side of the chute provided with the fixing piece, and the supporting wall protruding downward toward the housing and having at least one hook hole The housing may further include at least one hook that is inserted into the hook hole provided on the other side of the housing having the bracket.

The coupling device of the passenger-side seat airbag module according to the embodiment of the present invention has the following effects.

First, by providing the coupling member composed of the insertion rod and the coupling plate, the operator can easily and quickly perform the coupling and separation of the housing and the instrument panel.

Second, it is possible to shorten the coupling and disconnection time between the housing and the instrument panel, thereby increasing the product production and repair efficiency.

1 is a vertical sectional view showing a coupling device of a passenger-seat airbag module according to an embodiment of the present invention.
2 is an exploded perspective view showing a coupling device of a passenger-side airbag module according to an embodiment of the present invention.
Fig. 3 is a partial perspective view showing the "III" display portion in Fig.
4 is a cross-sectional view taken along the line "IV-IV"
5 is an exploded view of a clamping member according to an embodiment of the present invention.
6 is a view showing another example of the installation of the clamping member according to the present invention.
7 is a view showing another example of the installation of the clamping member according to the present invention.
8 is a partial longitudinal cross-sectional view of a front passenger's seat airbag module coupling device to which another insertion rod according to the present invention is applied.
9 is a partial longitudinal cross-sectional view of a front passenger's seat airbag module coupling device to which another clamping member according to the present invention is applied.
Figure 10 is an exploded view of another clamping member according to the present invention;
11 is a partial perspective view showing a coupling device of the passenger-side airbag module according to another embodiment of the present invention.
12 is a longitudinal sectional view taken along line "XII-XII" in Fig.
Fig. 13 is a partial longitudinal cross-sectional view showing another example of the installation of the coupling device of the passenger-side airbag module of Figs. 11 and 12. Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know. Wherein like reference numerals refer to like elements throughout.

In the drawings, "U" represents a direction toward the instrument panel 21 to be described later. In the following description, the "U" direction is defined upward, and terms such as "top", "bottom", "up", "down" and similar expressions are based on the "U" direction.

FIG. 1 is a longitudinal sectional view showing a coupling device of a passenger seat airbag module according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view illustrating a coupling device of a passenger seat airbag module according to an embodiment of the present invention.

1 and 2, the passenger-side airbag module 1 includes a housing 13 in which a folded airbag 11 is housed, and an inflator 15 that generates gas for inflating the airbag 11 .

The bottom of the housing 13 includes a lower retainer 17 for accommodating the lower portion of the inflator 15 and an upper retainer 19 for covering the upper portion of the inflator 15. [

A chute 23 is coupled to the inside of the instrument panel 21 and a tier line 21a is provided on the inner surface of the instrument panel 21. The tier line 21a is formed along a specific area to form the door portion 21b covering the opening of the housing 13. [ Here, the door portion 21b may be provided separately from the instrument panel 21.

The chute 23 is integrally fused to the inner surface of the instrument panel 21 by vibration welding or heat welding.

At least one fixing piece 25 having a fixing hole 25a is provided on one side of the chute 23 and a chute 23 facing the side on which the fixing piece 25 is provided faces the housing 13 A support wall 27 projecting downward and having at least one hook hole 27a is provided. The other side of the chute 23 is close to the windshield W.

At least one bracket 29 is provided on one side of the housing 13 corresponding to the fixing piece 25 and the bracket 29 is fixed to the bracket hole 29a corresponding to the fixing hole 25a of the fixing piece 25. [ Respectively.

The fixing piece 25 and the bracket 29 have an insertion rod 100 inserted through the fixing hole 25a and the bracket hole 29a; Is fixed by a clamping member (200) for preventing the insertion rod (100) from being detached from the fixing hole (25a) and the bracket hole (29a).

The clamping member 200 includes upper and lower engaging plates 210 and 230 that are fitted to the outer periphery of the upper and lower protruding regions protruding from the fixing hole 25 and the bracket hole 29a.

The clamping member 200 is provided on the outer periphery of at least one of the upper and lower protruding regions 110 and 130 of the insertion rod 100 protruded from the fixing hole 25a and the bracket hole 29a, And is inserted in an orthogonal direction.

At least one hook 31 inserted into the hook hole 27a is provided on the other side of the housing 13 facing the at least one hook hole 27a of the support wall 27. [

Such a coupling structure enables the following installation. That is, the hook 31 is inserted into the hook hole 27a to engage the housing 13 with the instrument panel 21, and then the bracket 29 is brought into contact with the fixing piece 25 to fix the fixing hole 25a. The upper and lower engaging plates 210 and 230 constituting the clamping member 200 are inserted into the upper and lower protruding regions 130 and 150 of the insertion rod 100 Respectively. In this way, the insertion rod 100 and the clamping member 200 cooperate with the hook 31 to allow the housing 13 to be coupled to the instrument panel 21.

On the other hand, the housing 13 can be separated from the instrument panel 21 by the reverse order of the above-described method.

The coupling structure of the housing 13 and the instrument panel 21 is such that the hook 31 is coupled to the hook hole 27a and the insertion rod 100 is coupled to the hook hole 27a, The insertion of the clamping member 200 into the insertion rod 100 after the insertion into the fixing hole 25a and the bracket hole 29a can eliminate the inconvenience of the screw fastening operation in the conventional bolt fastening structure . As a result, the housing 13 can be easily coupled to and separated from the instrument panel 21 for maintenance purposes.

3 is a partial perspective view showing the "III" display portion of FIG. 1, and FIG. 4 is a longitudinal sectional view taken along the line "IV-IV" of FIG.

3 and 4, the insertion rod 100 includes an insertion region 110 to be inserted into the bracket hole 29a and the fixing hole 25a, and an insertion region 110 projecting from the bracket hole 29a and the fixing hole 25a An upper protruding region 130 and a lower protruding region 150.

The upper and lower protrusions 130 and 150 are formed in the outer circumferential portion adjacent to the insertion region 100 such that the peripheral portions of the upper and lower cutout holes 211 and 231 of the upper and lower coupling plates 210 and 230 are fitted, (131) and a lower concave groove (151) are formed. It is preferable that the upper concave groove 131 and the lower concave groove 151 are formed at a position where they can be brought into contact with the upper surface of the fixing piece 25 and the lower surface of the bracket 29 after the upper and lower coupling plates 210 and 230 are inserted Do. The insertion rod 100 may be made of a metal material or a plastic material.

The clamping member 200 includes an upper engaging plate 210 and a lower engaging groove 151 which have an upper cutting hole 211 whose one side is opened so as to be fitted into the upper concave groove 131 and make contact with the upper surface of the fixing piece 25, And a lower coupling plate 230 having a lower cutting hole 231 to be fitted in the bracket 29 and contacting the lower surface of the bracket 29.

In addition, the clamping member 200 has a length approximately corresponding to the sum of the thickness T1 of the fixing piece 25 and the thickness T2 of the bracket 29, and the upper and lower engaging plates 210, And a connection plate 250 provided between the upper and lower coupling plates 210 and 230 to connect the upper and lower coupling plates 210 and 230.

The clamping member 200 may have a generally U-shaped cross-section with the upper coupling plate 210, the lower coupling plate 230 and the coupling plate 250 integrally formed.

The clamping member 200 configured as described above is moved from the one ends of the fixing piece 25 and the bracket 29 by a predetermined distance along the direction of the arrow A and then moved upward and downward through the upper and lower cutting holes 211 and 231 Are inserted into the upper and lower concave grooves 131 and 151 of the insertion bar 100. [ As a result, the upper coupling plate 210 is in contact with the upper surface of the fixing piece 25, the lower coupling plate 230 is in contact with the lower surface of the bracket 29, And the fixing piece 25 and the bracket 29 are fixed by the upper and lower engaging plates 210 and 230 together with the insertion rod 100 to contact the housing 130 with the instrument panel 21).

On the other hand, at the time of separation, a predetermined force is applied to move the clamping member 200 in the direction opposite to the arrow A so that the engagement state of the fixing piece 25 and the bracket 29 is released.

As described above, the clamping member 200 having the U-shaped structure increases the coupling force of the fixing piece 25 and the bracket 29, and at the same time, the clamping member 200 can be easily gripped to facilitate the coupling and unlocking operations.

As described above, the clamping member 200 having a U-shape can be prepared in a state in which the clamping member 200 and the bracket 29 are completely formed in a U-shape before the clamping member 25 and the bracket 29 are fixed. Alternatively, it may be prepared in an unfolded state so that the worker can bend into the "U" shape before fixing the fixing piece 25 and the bracket 29, and then be coupled to the insertion rod 100.

5 is an exploded view of a clamping member according to an embodiment of the present invention.

Referring to FIG. 5, bending lines 251 and 253 are previously formed at predetermined positions to define the connection plate 250. The bending lines 251 and 253 are formed to have a relatively small thickness as compared with other portions, and are easily bendable at a desired portion. Here, the clamping member 200 may be made of a plastic material or a metal material. For example, when the clamping member 200 is made of a plastic material, the clamping member 200 may be designed in consideration of designing an injection mold.

5 shows a configuration in which the openings of the upper and lower incision holes 211 and 231 are located at upper and lower ends orthogonal to the longitudinal direction of the clamping member 200 in the unfolded state. However, the position of the opening may be positioned at both ends of the clamping member 200 in parallel with the longitudinal direction of the clamping member 200.

6 and 7 are views showing still another example of the installation of the clamping member according to the present invention.

6 and 7, the clamping member 200 may be inserted in the direction parallel to the side of the housing 13 along the direction of arrow B or C, or may be separated along the opposite direction. By varying the mounting position of the clamping member 200, the lateral position of the thick portion of the fixing piece 25 and the bracket 29 to which the connecting plate 250 contacts is different.

When the clamping member 200 is coupled to the insertion bar 100 along various directions A, B and C, the position of the upper and lower concave grooves 131 and 151 formed in the insertion bar 100 can be easily adjusted It is preferable to allow them to be combined. For this, the upper and lower concave grooves 131 and 151 are preferably formed continuously along the entire outer circumference of the upper and lower protruding regions 130 and 150. When the upper and lower concave grooves 131 and 151 are formed only on a part of the outer periphery of the upper and lower protruding regions 130 and 151, the inconvenience that the insertion rod 100 must be rotated in order to align the upper and lower concave grooves 131 and 151 Occurs.

4, the insertion rod 100 is inserted into the fixing hole 25a and the inner diameter D1 of the bracket hole 29a such that the cross-sectional surfaces of the insertion area 110 and the upper and lower protruding areas 130 and 150 are both insertable And may have the same diameter D2. In this case, the insertion bar 100 has left-right and up-and-down symmetrical structures, which is advantageous in that molding work of parts is facilitated. However, it is somewhat inconvenient in the operation of inserting the clamping member 200 after inserting the insertion rod 100 into the fixing hole 25a and the bracket hole 29a. That is, when the operator inserts the insertion bar 100 into the fixing hole 25a and the bracket hole 29a and then continues to hold the upper protruding region 130 or the lower protruding region 150 by hand, There is an inconvenience in that it must be coupled to the insertion rod 100.

In order to solve this problem, the insertion rod 100 may be modified into various shapes.

8 is a partial longitudinal sectional view showing a modified example of the insertion rod according to the present invention.

8, the insertion rod 100A includes a lower protruding area 150A having a diameter D3 larger than the inner diameter of the fixing hole 25a and the bracket hole 29a.

 With this configuration, when the operator inserts the insertion rod 100A into the fixing hole 25a and the bracket hole 29a, the lower protruding region 150A is caught by the bottom surface of the bracket 29 and the movement of the insertion rod 100A The operator can easily attach the clamp member 200 to the insertion rod 100A.

Although the insertion rod 100A is inserted through the bracket 29 from the lower part to the upper part thereof, the insertion rod 100A is inserted downward from the upper part of the fixing part 25, So as to be positioned on the upper side of the fixing piece 25.

9 is a partial longitudinal cross-sectional view of a coupling device of a passenger seat airbag module to which another clamping member 200A of the present invention is applied.

9, when the clamping member 200A is coupled to the insertion rod 100 inserted into the bracket 29 and the fixing piece 25, the bottom surface of the upper coupling plate 210 and the bottom surface of the fixing piece 25 The coupling force may be lowered due to the gap generated between the upper surface and / or the upper surface of the lower engaging plate 230 and the lower surface of the bracket 29. The gap can be caused by an error that occurs in the parts design or the coupling operation process.

The auxiliary layer 260 may be further provided on at least one of the bottom surface of the upper coupling plate 210 and the upper surface of the lower coupling plate 230 to improve the coupling force.

9 shows that the auxiliary layer 260 is provided on the bottom surface of the upper engaging plate 210, on the upper surface of the lower engaging plate 230, and on the inner surface of the connecting plate 250.

 The auxiliary layer 260 may be made of a material such as rubber, silicone, or epoxy to provide frictional force.

The auxiliary layer 260 presses the upper surface of the fixing piece 25 and / or the upper surface of the bracket 29 to firmly engage the clamping member 200A when the clamping member 200A is coupled to the insertion rod 100 .

Figure 10 is an exploded view of another clamping member according to the present invention;

10, a release preventing member 290 is additionally provided in the periphery of the upper incision hole 211 and the lower incision hole 231 so that the upper and lower engaging plates 210 are detached from the insertion rod 100 Reduce.

The release preventing member 290 is made of a material such as rubber, silicone, or epoxy resin, which is similar to the auxiliary layer 260, so that frictional force is provided.

Hereinafter, a coupling device of the passenger-seat airbag module according to another embodiment of the present invention will be described.

Fig. 11 is a partial perspective view of a coupling device of a passenger seat airbag module according to another embodiment of the present invention, and Fig. 12 is a longitudinal sectional view taken along line "XII-XII"

11 and 12, the insertion rod 100A inserted through the fixing hole 25a of the fixing piece 25 and the bracket hole 29a of the bracket 29 and the upper protruding region And a single engaging plate 270 having a cutting hole 271 having one side opened so as to be fitted in an upper concave groove 131 formed in the outer periphery of the clamping member 130. [

The insertion rod 100A has an insertion region 110 and an upper protruding region 130 having the same diameter D2 that can be inserted into the inner diameter D1 of the fixing hole 25a and the through hole 29a, And a lower protruding region 150A having a diameter D3 larger than the inner diameter D1 of the through hole 29a. This configuration has the same shape as the insertion rod 100A of Fig.

 With such a configuration, when the operator inserts the insertion rod 100A into the fixing hole 25a and the bracket hole 29a, the lower protruding region 150A is caught by the bracket 29, so that the movement of the insertion rod 100A So that the operator can easily attach the clamp member 200D to the insertion rod 100A.

At least one projection 273 may be additionally provided on the bottom surface of the coupling plate 270 which contacts the upper surface of the fixing piece 25 so as to press the upper surface of the fixing piece 25 at the time of coupling.

 The projections 273 serve not only to increase the engaging force of the fixing pieces 25 and the brackets 29 but also to enable the operator to easily grip and operate the engaging plate 270. [ The projections 273 may be formed of a material such as rubber, silicon epoxy or the like to provide a predetermined frictional force.

In the above description, the insertion rod 100A is inserted into the fixing hole 25a and the bracket hole 29a from the lower side of the bracket 29 to the upper side U. However, the insertion direction of the insertion rod 100A is It is needless to say that the installation structure may be different from the others.

Fig. 13 is a partial longitudinal cross-sectional view showing another example of the installation of the coupling device of the passenger-side airbag module of Figs. 11 and 12. Fig.

Referring to Fig. 13, the insertion rod 100A is inserted into the fixing hole 25a and the bracket hole 29a from the upper portion of the fixing piece 25 downward. As a result, the lower protruding region 150A is caught on the upper surface of the fixing piece 25, and the engaging plate 270 is fitted to the outer periphery of the upper protruding region 130 protruding to the lower portion of the bracket 29. In this case, the projection 273 provided on the coupling plate 270 is in contact with the bottom surface of the bracket 29.

Although the present invention has been described with reference to the accompanying drawings and the preferred embodiments described above, the present invention is not limited thereto but is limited by the following claims. Accordingly, those skilled in the art will appreciate that various modifications and changes may be made thereto without departing from the spirit of the following claims.

1: Passenger's seat airbag module 13: Housing
21: Instrument panel 23: Suit
25: Fixing piece 25a: Fixing hole
27: support wall 27a: hook hole
29: Bracket 29a: Bracket hole
31: Hook 100, 100A, 100D: Insertion rod
110: insertion area 130: upper protruding area
150, 150A: lower protruding regions 131, 151: upper and lower concave grooves
200, 200A, 200C, 200D: clamping member 210: upper coupling plate
211: upper cutting hole 230: lower engaging plate
231: lower incision hole 250: connection plate
260: auxiliary layer 270: engaging plate
290: Release preventing member 273:

Claims (13)

1. A coupling device for a passenger-side airbag module for coupling a passenger-side airbag module including a housing in which an airbag is accommodated to a rear face of an instrument panel,
A chute having at least one fixing part coupled to the rear surface of the instrument panel and having a fixing hole at one side thereof;
At least one bracket provided at one side of the housing corresponding to the fixing piece and having a bracket hole corresponding to the fixing hole;
An insertion rod inserted through the fixing hole and the bracket hole; And
And an incision hole having one side opened so as to be fitted in at least one outer circumference of the upper and lower protruding regions of the insertion rod protruding from the fixing hole and the bracket hole in a direction perpendicular to the longitudinal direction of the insertion rod, A clamping member including at least one engaging plate in contact with at least one surface of the lower surface of the bracket,
Wherein the airbag module is mounted on the vehicle body. The coupling device for an airbag module according to claim 1, wherein a concave groove is formed in an outer periphery of at least one of the upper projecting region and the lower projecting region so that a periphery of the cutting hole of the coupling plate is fitted. 3. The airbag module according to claim 2, wherein the concave groove is formed on the entire outer periphery of at least one of the upper and lower protruding regions. The clamping device according to claim 1,
An upper engaging plate having an upper incision hole so as to be fitted to an outer periphery of the upper projecting region and contacting an upper surface of the fixing member;
A lower engaging plate having a lower incision hole to be fitted to an outer periphery of the lower projecting region, the lower engaging plate contacting the lower surface of the bracket; And
And a connection plate having a length corresponding to a sum of the thickness of the fixing piece and the thickness of the bracket and provided between the upper coupling plate and the lower coupling plate to connect the upper and lower coupling plates, Device. [5] The apparatus of claim 4, wherein the upper and lower coupling plates and the coupling plate are integrally formed. The method of claim 1, And one of the lower projecting regions has a diameter larger than a diameter of the fixing hole and the bracket hole. The coupling device of claim 4, wherein at least one of the upper and lower coupling plates further comprises an auxiliary layer for increasing a coupling force between the upper surface of the fixing piece and the lower surface of the bracket. [8] The apparatus of claim 7, wherein the auxiliary layer is made of one of rubber, silicone, and epoxy. 2. The airbag module according to claim 1, further comprising an escape preventing member at an inner periphery of the incision hole to increase a force of engagement with the outer periphery of the insertion rod. The apparatus of claim 9, wherein the release preventing member is made of one of rubber, silicone, and epoxy. 2. The apparatus of claim 1, wherein one of the upper and lower protruding regions is formed to have a larger diameter than the diameter of the fixing hole and the bracket hole,
Wherein the clamping member includes a single engaging plate which is fitted to an outer periphery of the lower projecting region or the upper projecting region disposed on the other side of the upper projecting region or the lower projecting region having the larger diameter, . 12. The airbag module according to claim 11, wherein the engaging plate further comprises at least one protrusion on one surface of the fixing piece, the surface contacting the upper surface of the fixing piece or the lower surface of the bracket. 13. The method according to any one of claims 1 to 12,
The chute further includes a support wall provided on the other side opposite to one side of the chute provided with the fixing piece and projecting downwardly toward the housing and having at least one hook hole,
Wherein the housing further includes at least one hook that is inserted into the hook hole provided on the other side of the housing having the bracket.

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