JP5752470B2 - Airbag assembly structure - Google Patents

Description

  The present invention relates to an airbag assembly structure.

  In general, an air bag installed on the passenger side of a vehicle is assembled as an inflator assembly together with an inflator that sends inflated explosive gas into the air bag and instantly inflates, and opens to the passenger side of the instrument panel. The housing space is covered with a cover in a state where the inflator assembly is housed.

  Conventionally, an inflator assembly is fixed and installed in a reinforce of an instrument panel in a housing space, while a cover is attached to the inflator assembly via an arm part integrally formed on the back surface thereof. At the same time, it is locked to the opening edge of the instrument panel via a locking claw or the like.

  Further, on the back surface side of the cover, a notch groove is formed vertically and horizontally so as to be easily broken when the airbag is inflated and deployed toward the passenger seat, and at the portion where the notch groove is formed, The cover is made thin.

  As prior art document information related to this type of airbag assembly structure, there is Patent Document 1 below.

JP-A-8-142788

  However, in such a conventional structure, the arm portion for attaching the cover to the inflator assembly also plays a role as a guide member for guiding the deployment of the airbag. Although it is necessary to match with the unfolding direction, this type of cover is manufactured as a resin injection molded product, so that the mold drawing direction is determined by the longitudinal direction of the arm portion. Thus, there has been a design restriction in the setting direction of a locking claw or the like for locking the cover to the opening edge of the instrument panel.

  In addition, if the mounting part between the cover and the instrument panel is set at a deep position in the housing space, a mounting part that projects to the back of the housing space must be formed on the back surface of the cover. Since sink marks are likely to be generated on the surface and the surface quality and surface rigidity of the design surface may be deteriorated, the type of locking to the opening edge of the instrument panel via a locking claw etc. There was also a restriction that it had to be taken.

  And even if it is a case where the form locked to the opening edge part of an instrument panel via a locking claw etc. is adopted, it is for placing an article under the accommodation space of an instrument panel In the case where the tray portion is set, there is a problem that it is difficult to fix the cover because there is no edge portion on the lower side of the opening that can hold the locking claw or the like.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to alleviate design restrictions and improve the degree of freedom of arrangement of an airbag assembly.

The present invention relates to an airbag assembly structure applied to a passenger seat side of an instrument panel, and includes an inflator assembly including an airbag, and an accommodation space opened on the passenger seat side of the instrument panel. A cover that covers the housing in a stored state. The cover is composed of two parts, an outer cover and an inner cover. The outer cover and the inner cover are assembled to each other, and the outer cover is attached to the inflator assembly. is, the inner cover is attached to the instrument panel. Moreover, locking of the Upon attaching the inner cover to the instrument panel, the mounting portion of the instrument panel side is set to recessed position of said housing space It is characterized in that the mounting portion of the inner cover side were locked interpolation coefficients fit through the resin clip to.

  Thus, in this way, even if the cover is composed of two parts, the outer cover and the inner cover, the mounting portion for mounting the outer cover to the inflator assembly is formed in accordance with the deployment direction of the airbag. The attachment portion for attaching the inner cover to the instrument panel can be set in any direction without being restricted by the deployment direction of the airbag.

  In addition, the surface quality of the design surface of the cover is ensured by the outer cover, and the inner cover has a mounting portion that extends to the back of the accommodation space without worrying about sink marks during injection molding. Since it becomes possible to mold, it is possible to set the mounting portion between the inner cover and the instrument panel at a deep position in the accommodation space, and it is possible to lock a locking claw or the like in a part of the opening of the accommodation space Even in the case where such an edge does not exist, the cover can be securely fixed.

Further, the mounting portion of the instrument panel side for mounting a Lee N'nakaba, shared as a mounting portion of the console box installed in place of the air bag assembly, the relative engaging hole of the mounting portion of the instrument panel side If the mounting portion on the inner cover side is fitted and locked via the resin clip , the replacement to the console box can be easily performed using the same mounting portion on the instrument panel side.

In this case, since the mounting portion of the inner cover and the instrument panel is set to recessed positions of housing space, requires cupboard space when selecting the console box is not inhibited by the attachment portion of the instrument panel side It is possible to greatly improve the usability of the storage space.

  According to the above-described airbag assembly structure of the present invention, the following various excellent effects can be obtained.

  (I) According to the invention described in claim 1 of the present invention, the attachment portion for attaching the inner cover to the instrument panel can be set in any direction without being restricted by the deployment direction of the airbag. Also, the surface quality of the design surface of the cover can be ensured by the outer cover, and the mounting part that projects to the back of the accommodation space is formed on the inner cover without worrying about sink marks during injection molding. This allows the cover to be securely fixed by setting the mounting part between the inner cover and the instrument panel at a deeper position in the housing space, greatly reducing the design constraints compared to the conventional case. The degree of freedom of arrangement of the airbag assembly can be remarkably improved.

According to the invention described in claim 1, (II) the present invention, by utilizing the same mounting portion of the instrument panel-side replacement can be easily carried out to the console box, moreover, the inner cover and the instrument panel by set to recessed position the mounting portion of the housing space and, cupboard space when selecting a console box so as not inhibited by the mounting portion of the instrument panel side, greatly use of cupboard space Can be improved.

It is sectional drawing which shows an example of the form which implements this invention. It is a perspective view of the inner cover of FIG. It is sectional drawing in the assembly position of an outer cover and an inner cover. It is sectional drawing in the attachment position of an outer cover and an inflator assembly. It is sectional drawing which shows the state which replaced with the airbag assembly and installed the console box.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 to 5 show an example of an embodiment for carrying out the present invention. In FIG. 1, 1 is an instrument panel, 2 is a storage space opened on the passenger seat side of the instrument panel 1, An inflator assembly 4 accommodated in the accommodation space 2 indicates a cover that covers the inflator assembly 3, and the cover 4 and the inflator assembly 3 constitute an airbag assembly 5.

  The inflator assembly 3 is composed of a folded airbag 6 and an inflator 7 for inflating the gas immediately after explosive explosives are blown into the airbag 6 through a bracket not shown in the cross section of FIG. And fixed to the reinforcement 8 of the instrument panel 1.

  The cover 4 is composed of two parts, an outer cover 9 and an inner cover 10. The outer cover 9 and the inner cover 10 are assembled to each other, and the outer cover 9 is attached to the inflator assembly 3, An inner cover 10 is attached to the instrument panel 1.

  More specifically, the inner cover 10 is formed to have a shape as shown in FIG. 2, and the locking holes 11 and 12 formed at appropriate positions above and below the inner cover 10 are as shown in FIG. The outer cover 9 and the inner cover 10 are assembled to each other by fitting and locking the locking claws 13 and 14 formed on the back surface side of the outer cover 9.

  Further, on the back surface side of the outer cover 9, arm portions 15 and 16 that form attachment portions to the inflator assembly 3 side as shown in FIG. The outer cover 9 is attached to the inflator assembly 3 by engaging and locking the locking claws 17 and 18 provided on the upper and lower surfaces of the inflator assembly 3 with respect to 15a and 16a.

  Further, as shown in FIG. 2, there are three mounting portions 19 and 20 projecting from the upper and lower sides of the inner cover 10 toward the back side of the accommodation space 2, and the mounting portions 19 and 20. The resin clips 19a and 20a are attached to the respective 20 so as not to be removed, and the locking holes 21a and 22a of the mounting portions 21 and 22 on the instrument panel 1 side set in the recessed position of the accommodation space 2 are set. On the other hand, the inner cover 10 is attached to the instrument panel 1 by fitting and locking the mounting portions 19 and 20 on the inner cover 10 side via resin clips 19a and 20a.

  At this time, since the inner cover 10 is a separate part from the outer cover 9 attached to the inflator assembly 3, the inner cover 10 has a direction different from the direction in which the airbag 6 is deployed (the direction indicated by the arrow A in FIG. 1). The mounting portions 19 and 20 of the inner cover 10 can be set.

  Also, as shown in FIGS. 2 and 4 above, a support portion 23 that supports the outer cover 9 from the back surface is provided at a portion of the inner cover 10 that faces the back surface of the outer cover 9. 9 can compensate for the surface rigidity of the outer cover 9 and suppress the play of the outer cover 9.

  1, 3, and 4, reference numeral 24 denotes a notch groove formed on the back side of the outer cover 9, and the outer cover 9 is easily broken when the airbag 6 is inflated and deployed toward the passenger seat. I have to do it.

  Thus, in this way, the cover 4 is composed of the two parts of the outer cover 9 and the inner cover 10, so that the arm portions 15 and 16 of the outer cover 9 (for attaching the outer cover 9 to the inflator assembly 3). Even if the attachment portion) is formed in accordance with the deployment direction of the airbag 6, the attachment portions 19 and 20 for attaching the inner cover 10 to the instrument panel 1 are restricted by the deployment direction of the airbag 6. It is possible to set it in any direction.

  Further, the surface quality of the design surface of the cover 4 is secured by the outer cover 9, and the inner cover 10 is stretched to the back of the accommodation space 2 without worrying about sink marks during injection molding. Since the attaching portions 19 and 20 to be taken out can be formed, the attaching portions 19 and 20 and 21 and 22 between the inner cover 10 and the instrument panel 1 can be set at a deep position in the accommodation space 2. In addition, the cover 4 can be reliably fixed even in a case where there is no edge that can lock the locking claw or the like in a part of the opening of the accommodation space 2.

  For example, in the example illustrated in FIG. 1, a tray portion 25 for placing articles is provided below the accommodation space 2 of the instrument panel 1. There is no edge on the side that can lock the locking claw or the like, but the cover 4 can be securely fixed even in such a case.

  Therefore, according to the above embodiment, the attachment portions 19 and 20 for attaching the inner cover 10 to the instrument panel 1 can be set in an arbitrary direction without being restricted by the deployment direction of the airbag 6. The surface quality of the design surface of the cover 4 can be ensured by the outer cover 9, and the mounting portion 19 projects to the inner space 10 without worrying about sink marks during injection molding. , 20 can be molded, and thereby, the mounting portions 19, 20, 21 and 22 between the inner cover 10 and the instrument panel 1 are set in the recessed positions of the housing space 2 to securely fix the cover 4 As a result, the design constraints can be greatly relaxed compared to the prior art, and the degree of freedom in the arrangement of the airbag assembly 5 can be significantly improved.

  Furthermore, it is preferable that the attachment portions 21 and 22 on the instrument panel 1 side for attaching the inner cover 10 are configured so as to be shared as attachment portions of a console box installed in place of the airbag assembly 5. For example, as shown in FIG. 5, when the console box 26 is configured by the storage portion 27 and the lid portion 28, the mounting portions 29, 30 protrude above and below the back surface of the storage portion 27 in the same manner as the inner cover 10. The resin clips 31 and 32 are attached to the respective attachment portions 29 and 30 so as not to be removed, and the attachment holes 21a and 22a of the attachment portions 21 and 22 on the instrument panel 1 side are The console box 26 can be installed by inserting and locking the mounting portions 29, 30 on the inner cover 10 side through the resin clips 31, 32. Good idea to do so.

  If it does in this way, replacement to the console box 26 can be easily performed using the same attachment parts 21 and 22 on the instrument panel 1 side, and the attachment parts 21 and 22 on the instrument panel 1 side can be easily changed. By setting the storage space 2 at a deep position, the storage space when the console box 26 is selected is not obstructed by the mounting portions 21 and 22 on the instrument panel 1 side, and the usability of the storage space is improved. It can be greatly improved.

  The airbag assembly structure of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Instrument panel 3 Inflator assembly 4 Cover 5 Air bag assembly 6 Air bag 9 Outer cover 10 Inner cover 15, 16 Arm part (attachment part)
19, 20 Mounting part 21, 22 Mounting part 26 Console box

Claims (1)

An airbag assembly structure applied to a passenger seat side of an instrument panel, wherein the inflator assembly includes an airbag, and the inflator assembly is housed in a storage space opened on the passenger seat side of the instrument panel. A cover for covering, the cover comprising two parts, an outer cover and an inner cover. The outer cover and the inner cover are assembled to each other, and the outer cover is attached to the inflator assembly. cover is attached to the instrument panel. Moreover, the order to fix the inner cover on the instrument panel, before to engaging hole of the mounting portion of the instrument panel side is set to recessed position of said housing space Airbag assembly structure characterized in that the mounting portion of the inner cover side was sealed interpolation coefficients fit through the resin clip.

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