KR20140006477A - Apparatus for coupling passenger airbag module - Google Patents

Abstract

A disclosed coupling device for a passenger airbag module includes a chute which is combined with the rear surface of an instrument panel and has at least one fixture piece that has a fixing hole on one side thereof; at least one bracket which is formed on one side of the housing corresponding to the fixing hole and has a bracket hole corresponding to the fixing hole; an insertion bar inserted through the fixing hole and a bracket hole; and at least one coupling plate which has an open cutting hole to be inserted into at least one circumference of upper and lower protruding areas of the insertion bar protruding from the fixing hole and the bracket hole in a direction orthogonal to the longitudinal direction of the insertion bar to prevent the insertion bar from being separated from the fixing hole and the bracket hole, and comes in contact with at least one surface of either the upper surface of the fixture piece or the lower surface of the bracket.

Description

Coupling device of the passenger seat airbag module {APPARATUS FOR COUPLING PASSENGER AIRBAG MODULE}

The present invention relates to a coupling device of a passenger seat airbag module that can easily couple and detach the passenger seat airbag module inside the instrument panel.

Conventional passenger seat airbag modules include a housing in which the airbag is received in a folded state, an inflator installed at the bottom of the housing to produce gas to inflate the airbag, and a door covering the opening of the housing. The door is provided separately from the instrument panel or is integrally formed in a specific area of the instrument panel by a tier line.

Conventionally, in order to couple the passenger seat airbag module to the instrument panel, it has the following coupling structure. That is, a plurality of hooks are provided at one side of the airbag housing at predetermined intervals, and a plurality of brackets having fastening holes are provided at the other side at predetermined intervals. In addition, one side of the instrument panel is provided with a supporting wall having a plurality of hook holes to insert the hook, and the other side is provided with a plurality of fixing members having fixing holes to be coupled by the bracket and the bolt.

Conventionally, in order to couple the housing of the passenger seat airbag module to the instrument panel, one side has a hook structure and the other side has a bolt coupling structure. As described above, since the conventional coupling structure includes a bolt coupling structure, there is an inconvenience in coupling the housing to the instrument panel and inserting the bolt into the coupling hole and the fixing hole and then tightening and releasing the nut.

In addition, there is a problem in that the coupling and separation of the housing and the instrument panel can not be made quickly by the bolt coupling structure.

SUMMARY OF THE INVENTION An object of the present invention is to provide a coupling device for a passenger seat airbag module that enables easy and rapid coupling and detachment of a housing and an instrument panel constituting a passenger seat airbag module.

In addition, another object of the present invention is to provide a coupling device for a passenger seat airbag module that can increase the efficiency of production and repair by shortening the coupling and separation time of the housing and the instrument panel than in the prior art.

The object is coupled to the back of the instrument panel and the chute is provided with at least one fixing piece having a fixing hole on one side; At least one bracket provided on 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 a direction orthogonal to the longitudinal direction of the insertion rod on at least one outer periphery of the upper and lower protrusion regions of the insertion rod protruding from the fixing hole and the bracket hole to prevent the insertion rod from being separated from the fixing hole and the bracket hole. It is achieved by the coupling device of the passenger seat airbag module having a cutting hole, one side is opened so as to fit into the fitting, and including a clamping member including at least one coupling plate in contact with at least one of the upper surface of the fixing piece and the lower surface of the bracket. Can be.

In the coupling device of the passenger seat airbag module of the present invention, at least one outer periphery of the upper protrusion area and the lower protrusion area may be formed with a concave groove so that the periphery of the cutting hole of the coupling plate is fitted.

In the coupling device of the passenger seat airbag module of the present invention, the concave groove may be formed in the entire outer circumference of at least one of the upper, lower projection area.

In the coupling device of the passenger seat airbag module of the present invention, the clamping member has an upper cutting hole to be fitted to the outer periphery of the upper protrusion area and the upper coupling plate in contact with the upper surface of the fixing piece; A lower coupling plate having a lower cutting hole to be fitted to an outer circumference of the lower protruding region and contacting a lower surface of the bracket; And a connection plate having a length corresponding to the 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.

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

In the coupling device of the passenger seat airbag module of the present invention, any one of the upper and lower protrusion areas may have a diameter larger than the diameter of the fixing hole and the bracket hole.

In the coupling device of the passenger seat airbag module of the present invention, at least one of the upper and lower coupling plates may further include an auxiliary layer to increase the coupling force with any one of the upper surface of the fixing piece and the lower surface of the bracket.

In the coupling device of the passenger seat airbag module of the present invention, the inner circumference of the cutting hole may further include a departure prevention member to increase the coupling force with the outer circumference of the insertion rod.

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

In the coupling device of the passenger seat airbag module of the present invention, any one of the upper and lower protrusion areas is formed to have a diameter larger than the diameter of the fixing hole and the bracket hole, the clamping member is an upper protrusion area having a large diameter or It may include a single coupling plate fitted to the outer periphery of the lower projection area or the upper projection area disposed on the other side of the lower projection area.

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

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

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

First, by providing a coupling member consisting of an insertion rod and a coupling plate, the operator can easily and quickly engage and disengage the housing and the instrument panel.

Second, the coupling and separation time of the housing and the instrument panel can be shortened than before, thereby increasing the efficiency of product production and repair.

1 is a vertical sectional view showing a coupling device of a passenger seat airbag module according to an embodiment of the present invention.
Figure 2 is an exploded perspective view showing a coupling device of the passenger seat airbag module according to an embodiment of the present invention.
FIG. 3 is a partial perspective view illustrating the “III” display unit of FIG. 1.
4 is a cross-sectional view taken along the line “IV-IV” in FIG. 3.
5 is an exploded view illustrating the clamping member unfolded according to an embodiment of the present invention.
6 is a view showing another installation example of the clamping member according to the present invention.
7 is a view showing another installation example of the clamping member according to the present invention.
8 is a partial longitudinal cross-sectional view of the passenger seat airbag module coupling device to which the other rod is applied according to the present invention.
9 is a partial longitudinal sectional view of a passenger seat airbag module coupling device to which another clamping member according to the present invention is applied.
10 is an exploded view showing another clamping member according to the present invention unfolded.
11 is a partial perspective view showing a coupling device of the passenger seat airbag module according to another embodiment of the present invention.
12 is a longitudinal cross-sectional view taken along the line "XII-XII" in FIG.
FIG. 13 is a partial longitudinal cross-sectional view showing another example of installation of the coupling device of the passenger seat airbag module of FIGS. 11 and 12.

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" indicates 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", "below", "up" and "down" and similar expressions are based on the "U" direction.

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

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

The bottom of the housing 13 includes a lower retainer 17 for receiving the lower part of the inflator 15 and an upper retainer 19 for covering the top 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 an 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 part 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 fusion or thermal fusion.

At least one fixing piece 25 having a fixing hole 25a is provided at one side of the chute 23, and the other side of the chute 23 facing one side provided with the fixing piece 25 toward the housing 13. A supporting wall 27 is provided which protrudes downward and has at least one hook hole 27a. The other side of the chute 23 is close to the wind shield (W).

At least one bracket 29 is provided at one side of the fixing piece 25 and the housing 13, and the bracket 29 has a bracket hole 28a corresponding to the fixing hole 25a of the fixing piece 25. Has

The fixing piece 25 and the bracket 29 include an insertion rod 100 inserted through the fixing hole 25a and the bracket hole 29a; It is fixed by the clamping member 200 to prevent the insertion rod 100 is separated from the fixing hole 25a and the bracket hole 29a.

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

The clamping member 200 is formed in the lengthwise direction of the insertion rod 100 at an outer circumference of at least one of the upper and lower protrusion regions 110 and 130 of the insertion rod 100 protruding from the fixing hole 25a and the bracket hole 29a. It is fitted in the direction orthogonal.

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

By such a coupling structure, the following installation is possible. That is, in order to couple the housing 13 to the instrument panel 21, the hook 31 is inserted into the hook hole 27a, and the bracket 29 is then in contact with the fixing piece 25 to fix the fixing hole 25a. And the insertion rod 100 is inserted through the bracket hole 29a, and the upper and lower coupling plates 210 and 230 forming the clamping member 200 are disposed on the outer circumference of the upper and lower protrusion regions 130 and 150 of the insertion rod 100. Is fitted. In this manner, 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 in the reverse order of the above-described method.

According to the coupling device of the passenger seat airbag module of the present invention, the coupling structure of the housing 13 and the instrument panel 21 couples the hook 31 to the hook hole 27a and the insertion rod 100 as described above. By inserting the clamping member 200 into the insertion rod 100 after the insertion into the fixing hole 25a and the bracket hole 29a, inconveniences such as screwing in the conventional bolting structure can be eliminated. Can be. As a result, the housing 13 can be easily coupled to and detached from the instrument panel 21 for the purpose of maintenance.

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

3 and 4, the insertion rod 100 protrudes from the insertion area 110 inserted into the bracket hole 29a and the fixing hole 25a, and the bracket hole 29a and the fixing hole 25a. The upper protrusion area 130 and the lower protrusion area 150 are included.

The upper concave groove is inserted into the outer peripheral portion adjacent to the insertion region 100 of the upper protrusion region 130 and the lower protrusion region 150 so that the peripheries of the upper and lower incision holes 211 and 231 of the upper and lower coupling plates 210 and 230 are fitted. 131 and the lower concave groove 151 are formed. The upper concave groove 131 and the lower concave groove 151 may be formed at a position where the upper and lower coupling plates 210 and 230 may be contacted with the upper surface of the fixing piece 25 and the lower surface of the bracket 29. Do. Insertion rod 100 may be made of a metal material or a plastic material.

The clamping member 200 has an upper cutting hole 211 having one side opened so as to fit into the upper concave groove 131, and the upper coupling plate 210 and the lower recess 151 contacting the upper surface of the fixing piece 25. It has a lower cutting hole 231 to be fitted in, and includes a lower coupling plate 230 in contact with 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 coupling plate 210 and the lower coupling plate. It is provided between the 230 further comprises a connection plate 250 for connecting the upper, lower coupling plates (210, 230).

The clamping member 200 may have an upper coupling plate 210, a lower coupling plate 230, and a connecting plate 250 integrally formed to have a substantially “U” cross section.

The clamping member 200 configured as described above is moved a predetermined distance along the direction of arrow A from one end of the fixing piece 25 and the bracket 29, and then the upper and lower cutting holes 211 and 231 of the upper and lower coupling plates 210 and 230. ) Is inserted into the upper and lower concave grooves (131, 151) of the insertion rod (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, the connecting plate 250 of the fixing piece 25 And the fixing piece 25 and the bracket 29 are fixed by the upper and lower coupling plates 210 and 230 together with the insertion rod 100 to be in contact with one side of the thickness portion of the bracket 25 so that the housing 130 is disposed in the instrument panel ( 21).

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

As described above, the clamping member 200 having a “U” -shaped structure increases the engagement force of the fixing piece 25 and the bracket 29 and can be easily gripped to facilitate the engagement and release operation.

As described above, the clamping member 200 forming the “U” shape may be prepared in a state in which molding is completed in the “U” shape before fixing the fixing piece 25 and the bracket 29. Alternatively, it may be prepared in an unfolded state, and then bent into a “U” shape before the fixing piece 25 and the bracket 29 are fixed to the insertion rod 100.

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

Referring to FIG. 5, bending lines 251 and 253 are previously formed at a predetermined position to define the connection plate 250. The bending lines 251 and 253 are formed to have a relatively small thickness compared to other portions and are provided to be easily bent 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 this when designing an injection mold.

5 illustrates a configuration in which openings of the upper and lower cutting holes 211 and 231 are located at both ends of the upper and lower sides perpendicular to the longitudinal direction in the state where the clamping member 200 is unfolded. However, it may be configured such that the position of the opening is located at both ends parallel to the longitudinal direction of the clamping member 200.

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

6 and 7, the clamping member 200 may be inserted in a direction parallel to the side surface of the housing 13 along the arrow B direction or the C direction, or may be separated along the reverse direction. In this way, by varying the installation position of the clamping member 200, the side position of the thickness portion of the fixing piece 25 and the bracket 29 that the connection plate 250 is in contact is different.

When the clamping member 200 is coupled to the insertion rod 100 along various directions A, B, and C, the upper and lower concave grooves 131 and 151 formed in the insertion rod 100 can be easily adjusted without the need to adjust the position. It is desirable to be able to bond. For this purpose, the upper and lower concave grooves 131 and 151 may be continuously formed 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 in the outer circumferential portion of the upper and lower protruding regions 130 and 151, the trouble of having to rotate the insertion rod 100 so as to match the positions of the upper and lower concave grooves 131 and 151. Occurs.

Referring to FIG. 4 again, the insertion rod 100 can be inserted into the insertion region 110 and the inner and outer diameters D1 of the upper and lower protrusion regions 130 and 150 in both the fixing holes 25a and the bracket holes 29a. It may be provided to have the same diameter (D2). In this case, the insertion rod 100 has a left and right and up and down symmetrical structure has the advantage of easy forming of the part. However, after inserting the insertion rod 100 into the fixing hole (25a) and the bracket hole (29a) there is a somewhat inconvenient point in the work for coupling the clamping member 200. That is, after the operator inserts the insertion rod 100 into the fixing hole 25a and the bracket hole 29a, the clamping member 200 is held in the state of holding the upper protrusion region 130 or the lower protrusion region 150 by hand. There is an inconvenience that must be coupled to the insertion rod (100).

In order to solve this, the insertion rod 100 may be modified in various forms.

8 is a partial longitudinal cross-sectional view showing a modification of the insertion rod according to the present invention.

Referring to FIG. 8, the insertion rod 100A includes a lower protrusion region 150A having a diameter D3 larger than the internal diameter D1 of the fixing hole 25a and the bracket hole 29a.

 By this configuration, when the operator inserts the insertion rod 100A into the fixing hole 25a and the bracket hole 29a, the lower protrusion area 150A is caught by the bottom surface of the bracket 29 to move the insertion rod 100A. Since this is limited to some extent, the operator can easily couple the clamp member 200 to the insertion rod (100A).

Here, the insertion rod 100A is inserted into the upper portion from the bottom of the bracket 29 as an example, but the insertion rod 100A is inserted downward from the top of the fixing piece 25 to lower the protrusion region 150A. It can be coupled to be located above the fixing piece (25).

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

Referring to FIG. 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 and the fixing piece 25 of the upper coupling plate 210 are coupled to each other. Coupling force may be lowered due to a gap generated between the top surface and / or between the top surface of the lower coupling plate 230 and the bottom surface of the bracket 29. Gaps can be due to errors in part design or in joining operations.

To this end, an auxiliary layer 260 may be further provided on at least one of a bottom surface of the upper coupling plate 210 and an upper surface of the lower coupling plate 230 to improve bonding strength.

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

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

When the clamp member 200A is coupled to the insertion rod 100, the auxiliary layer 260 pressurizes the upper surface of the fixing piece 25 and / or the upper surface of the bracket 29 to firmly bond the clamping member 200A. I can keep it.

10 is an exploded view showing another clamping member according to the present invention unfolded.

Referring to FIG. 10, the separation preventing member 290 is further provided around the upper cutting hole 211 and the lower cutting hole 231, so that the lower coupling plate 210 is separated from the insertion rod 100. Reduce

The separation preventing member 290 is preferably made of a material such as rubber, silicon, epoxy resin similar to the auxiliary layer 260 to provide a friction force.

Hereinafter, the coupling device of the passenger seat airbag module according to another embodiment of the present invention.

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

11 and 12, the insertion rod 100A and the upper protrusion region of the insertion rod 100A inserted through the fixing hole 25a of the fixing piece 25 and the bracket hole 29a of the bracket 29 are shown. It includes a clamping member (200D) including a single coupling plate 270 having a cutting hole (271) is open on one side to fit into the upper concave groove 131 formed on the outer periphery of (130).

The insertion rod 100A includes an insertion region 110 and an upper protrusion region 130 having the same diameter D2 that can be inserted into the fixing hole 25a and the inner diameter D1 of the through hole 29a, and the fixing hole 25a. ) And a lower protrusion 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.

 In 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 bracket 29 so that the movement of the insertion rod 100A is prevented. Since the degree is limited, the operator can easily couple the clamp member 200D to the insertion rod (100A).

The bottom surface of the coupling plate 270 in contact with the upper surface of the fixing piece 25 may further include at least one protrusion 273 to pressurize the upper surface of the fixing piece 25 when engaged.

 The projection 273 allows the operator to easily hold and work with the coupling plate 270 in addition to increasing the coupling force of the fixing piece 25 and the bracket 29. The protrusion 273 may be formed of a material such as rubber or silicone epoxy to provide a predetermined frictional force.

In the above description, it has been described that the insertion rod 100A is inserted upward from the bottom of the bracket 29 into the fixing hole 25a and the bracket hole 29a, but the insertion direction of the insertion rod 100A is Of course, the installation structure can be different.

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

Referring to FIG. 13, the insertion rod 100A is inserted into the fixing hole 25a and the bracket hole 29a downward from the top of the fixing piece 25. As a result, the lower protrusion area 150A is caught by the upper surface of the fixing piece 25, and the coupling plate 270 is fitted to the outer circumference of the upper protrusion area 130 protruding downward of the bracket 29. In this case, the protrusion 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 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 projection area
150,150A: Lower protrusion area 131,151: Upper and lower concave grooves
200, 200A, 200C, 200D: clamping member 210: upper coupling plate
211: upper cutting hole 230: lower coupling plate
231: lower incision hole 250: connecting plate
260: auxiliary layer 270: bonding plate
290: release preventing member 273: projection

Claims (13)

In the coupling device of the passenger seat airbag module for coupling the passenger seat airbag module including a housing that receives the airbag to the rear of the instrument panel,
A chute having at least one fixing piece coupled to the rear surface of the instrument panel and having a fixing hole at one side thereof;
At least one bracket provided on 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
An upper surface of the fixing piece having an incision hole open at one side to be fitted in at least one outer periphery of the upper and lower protruding regions protruding from the fixing hole and the bracket hole in a direction orthogonal to the longitudinal direction of the inserting rod; A clamping member comprising at least one engaging plate in contact with at least one of the lower surfaces of the bracket,
Combination device of the passenger seat airbag module comprising a. According to claim 1, At least one outer periphery of the upper protrusion area and the lower protrusion area coupling device of the passenger seat airbag module is formed with a concave groove formed so that the periphery of the cutting hole of the coupling plate. The coupling device of the passenger seat airbag module according to claim 2, wherein the concave groove is formed on the entire outer circumference of at least one of the upper and lower protrusion regions. The method of claim 1, wherein the clamping member,
An upper coupling plate having an upper cutting hole to be fitted to an outer circumference of the upper protruding region and contacting an upper surface of the fixing piece;
A lower coupling plate having a lower cutting hole to be fitted to an outer circumference of the lower protruding region and contacting a lower surface of the bracket; And
Combination of the airbag module having a length corresponding to the sum of the thickness of the fixing piece and the thickness of the bracket, the connection plate is provided between the upper coupling plate and the lower coupling plate to connect the upper and lower coupling plates Device. The coupling device of the airbag module according to claim 4, wherein the upper and lower coupling plates and the connection plate are integrally formed. The phase of claim 1 wherein said phase. Any one of the lower protrusion area is coupled to the passenger seat airbag module formed to have a diameter larger than the diameter of the fixing hole and the bracket hole. The coupling apparatus of claim 4, wherein at least one of the upper and lower coupling plates further includes an auxiliary layer to increase the coupling force with at least one of the upper surface of the fixing piece and the lower surface of the bracket. The method of claim 7, wherein the auxiliary layer is a coupling device of the airbag module, characterized in that made of any one of rubber, silicone, epoxy. The passenger seat airbag module coupling device of claim 1, further comprising a release preventing member at an inner circumference of the cutting hole to increase a coupling force of the insertion rod outer circumference. 10. The method of claim 9, The separation member is a coupling device of the airbag module, characterized in that made of any one of rubber, silicone, epoxy material. The method of claim 1, wherein any one of the upper and lower protrusion areas is formed to have a diameter larger than the diameter of the fixing hole and the bracket hole,
The clamping member is a coupling device of the passenger seat airbag module including a single engaging plate fitted to the outer periphery of the lower protrusion or the upper protrusion area disposed on the other side of the upper protrusion area or the lower protrusion area having the large diameter . The method of claim 11, wherein the coupling plate is a passenger seat airbag module coupling device further comprises at least one projection on one surface in contact with the upper surface of the fixing piece or the lower surface of the bracket. The method according to any one of claims 1 to 12,
The chute is provided on the other side facing one side of the chute provided with the fixing piece, further includes a support wall protruding downward toward the housing and having at least one hook hole,
The housing further comprises at least one hook is inserted into the hook hole provided on the other side facing one side of the housing provided with the bracket.

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