JP2008179273A - Arrangement structure of airbag device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve workability when installing a prescribed accessory on a cover member holding an airbag, and to more exactly simultaneously install the prescribed accessory and the airbag. <P>SOLUTION: In this arrangement structure, the airbag 16 to be inflated and deployed between an occupant and a vehicle body 11, the cover member 17 holding the airbag 16 in a folded state and installed on the vehicle body 11, and a wire harness 26 installed on the cover member 17 are provided. The wire harness 26 is arranged on a surface inside a cabin of a cabin-inside wall 22 in the cover member 17. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an arrangement structure of an airbag device that protects an occupant in a vehicle collision.

2. Description of the Related Art Conventionally, in the above-described airbag device, there is one in which cable-like accessory parts such as a wire harness and a drain hose are arranged in the vicinity of the airbag folded into a long rod shape (for example, Patent Documents) 1). In this case, it is conceivable that the accessory parts are attached to a cover member that holds the airbag, and these are attached to the vehicle body at the same time as an integrated module (see, for example, Patent Document 2).
JP-A-10-181497 JP 2004-359044 A

By the way, in the latter configuration, even if the airbag, the cover member, and the accessory are assembled to the vehicle body in a module state, the entire assembly work is performed after the end of the accessory member is connected to the corresponding part on the vehicle body side. It is necessary to expose the end portion after the assembly to the vehicle body so that it can be connected from the outside, and there are problems such as making it difficult to handle the airbag module and reducing the degree of freedom of the assembly.
In addition, when holding multiple types of accessory parts on the same cover member, the attachment work to the vehicle body is performed in a state in which each accessory part cannot be seen, which may cause erroneous assembly of the accessory parts. There is a problem.
Therefore, the present invention improves the workability when attaching a predetermined accessory part to the cover member that holds the airbag, and enables the assembly of the predetermined accessory part and the airbag more accurately. An arrangement structure for a bag device is provided.

  As a means for solving the above-mentioned problems, the invention described in claim 1 includes an airbag (for example, the airbag 16 of the embodiment) inflated and deployed between an occupant and a vehicle body (for example, the vehicle body 11 of the embodiment), and the air bag. An airbag including a cover member (for example, the cover member 17 of the embodiment) that holds the bag in a folded state and is attached to the vehicle body, and an accessory (for example, the wire harness 26 of the embodiment) that is attached to the cover member. In the device arrangement structure, the accessory component is arranged on a surface of the cover member on the vehicle interior side of the vehicle interior side wall (for example, the vehicle interior side wall 22 of the embodiment).

  The invention described in claim 2 is provided with a mounting portion (for example, the mounting piece 18 of the embodiment) of the airbag on the side opposite to the deployment direction of the airbag, and on the mounting portion side of the cover member, A sub-attachment part (for example, the sub-attachment part 28 of the embodiment) for attaching the accessory part is provided.

  The invention described in claim 3 is characterized in that the sub-attachment portion is provided to be offset toward the vehicle interior side by a predetermined distance from the attachment portion.

  According to the first aspect of the present invention, since the accessory part is located on the outer surface of the cover member on the vehicle interior side, the workability when attaching the accessory part to the cover member is improved, and the airbag and the cover member are improved. In addition, when attaching the accessory part to the vehicle body in a modular state, the accessory part can be connected to the vehicle body side before and after the assembly, and the accessory part can be visually observed at the time of the assembly. Therefore, the airbag, the cover member, and the accessory part Simultaneous assembly to the vehicle body can be performed more accurately.

  According to the second aspect of the present invention, the auxiliary attachment portion for the accessory part is located on the side opposite to the deployment direction of the airbag, and the push-opening of the cover member is not hindered when the airbag is deployed. Can be deployed smoothly and accurately.

  According to the third aspect of the present invention, it is possible to more easily assemble the accessory to the cover member, and to more accurately simultaneously assemble the airbag, the cover member, and the accessory to the vehicle body. Can do.

Embodiments of the present invention will be described below with reference to the drawings. Note that the directions such as front, rear, left and right in the following description are the same as those in the vehicle unless otherwise specified. In the figure, the arrow FR indicates the front of the vehicle, the arrow LH indicates the left side of the vehicle, and the arrow UP indicates the upper side of the vehicle.
As shown in FIG. 1, a pair of left and right roof side rails 15 constituting the upper edge of the window 14 on the upper side of the side door 13 extend in the vehicle front-rear direction on both sides of the roof 12 of the vehicle body 11 of the vehicle 10. To be provided. On the vehicle interior side of the left and right roof side rails 15, airbags 16 that are inflated and deployed in the form of curtains are disposed along the inside of the window 14.

  2 and 3 (a), the airbag 16 is folded in a long bar shape along the roof side rail 15 and is also in the cover member 17 having a long bar shape along the roof side rail 15. Is housed in. A plurality of attachment pieces 18 are provided on the upper end portion of the airbag 16 at predetermined intervals in the length direction. Each mounting piece 18 is formed with an insertion hole 18a, and a bolt 18b inserted into the insertion hole 18a from the vehicle interior side is connected to an inner wall 15a along the generally vertical direction of the inner member (vehicle interior side member) of the roof side rail 15. The airbag 16 is fixed to the roof side rail 15 via the mounting pieces 18 by being screwed and tightened into the screw holes formed in.

  The cover member 17 is made of, for example, a synthetic resin and has a U-shaped cross section that opens downward (specifically, downward and slightly toward the outside of the passenger compartment), and a folded airbag 16 is formed inside the cover member 17. Retained. Hereinafter, the vehicle interior side wall of the cover member 17 is denoted by reference numeral 21, the vehicle interior side wall is denoted by reference numeral 22, and the upper wall is denoted by reference numeral 23. An insertion hole 23a is formed in the upper wall 23 of the cover member 17 so that the attachment piece 18 of the airbag 16 can be taken out upward. The attachment piece 18 that has passed through the insertion hole 23a is bolted to the roof side rail 15. The The cover member 17 is separately fixed to the inner member of the roof side rail 15 by fixing means using a clip or the like (not shown).

  Further, in FIG. 3, reference numeral 24 denotes a synthetic resin roof lining that is attached to the inside of the roof 12, and reference numeral 25 denotes a composite that is attached to the inside of the roof side rail 15 so as to overlap the side edge of the roof lining 24. Each shows a plastic roof side trim. In the space between the roof side trim 25 and the roof side rail 15, the airbag 16 is disposed in a state of being held in the cover member 17.

  As shown in FIG. 3B, when the airbag 16 is inflated and deployed, the airbag 16 pushes and spreads the cover member 17 in a cross-sectional shape, and the roof side trim 25 and the roof side rail 15 While expanding the space, it expands and expands in a curtain shape along the window 14 below. That is, the vehicle interior side wall 22 and the vehicle interior outer wall 21 of the cover member 17 function as guide walls that guide the airbag 16 so that the deployment direction (arrow F in the figure) is a predetermined direction (downward and along the window).

  Here, reference numeral 19 in FIG. 1 indicates left and right inflators corresponding to the left and right airbags 16, respectively, and the left and right curtain airbag devices 20 are mainly composed of the inflators 19, the airbag 16, and the cover member 17. . Each of the curtain airbag devices 20 inflates and deploys the airbag 16 between the occupant and the vehicle body 11 (window 14) with a gas supplied from the inflator 19 in an emergency such as a vehicle collision. 2 and 3 show the curtain airbag device 20 on the left side of the vehicle, and the one on the right side of the vehicle is not shown as the left and right handed object.

  As shown in FIGS. 2 and 3, a wire harness 26 is disposed on the interior side of the airbag 16 along the interior of the airbag 16. The wire harness 26 is formed by bundling a plurality of harnesses 26a for various electrical components disposed in each part of the vehicle body 11, and inserting these into single or a plurality of guide tubes 26b. The wire harness 26 is inserted and held by the plurality of holders 27A with a predetermined interval in the length direction. The holder 27 </ b> A forms a sub-attachment piece 27 that extends above the wire harness 26. Each sub-attachment piece 27 is formed with an insertion hole 27a, and a clip 27b inserted into the insertion hole 27a from the vehicle interior side is inserted into a clip hole 28a formed in a later-described sub-attachment portion 28 of the cover member 17 and engaged. By doing so, the wire harness 26 is attached to the cover member 17 and thus to the curtain airbag device 20 via each sub-attachment piece 27.

  The vehicle interior side wall 22 of the cover member 17 extends above the upper wall 23 (attachment piece 18 side, opposite to the airbag deployment direction), and the extension portion serves as the auxiliary attachment portion 28. That is, the sub-mounting portion 28 is provided by being offset from the mounting piece 18 (and the roof side rail 15) by a predetermined distance on the vehicle interior side. On the surface on the vehicle interior side of the sub-attachment portion 28, the sub-attachment piece 27 of the wire harness 26 is clip-fixed in a state of being in contact with the vehicle interior side. At this time, the wire harness 26 is disposed below the upper wall 23 along the surface on the vehicle interior side of the vehicle interior side wall 22.

  The vehicle interior side wall 21 of the cover member 17 is in contact with the roof side rail 15, and the vehicle interior side wall 22 is mainly pushed toward the vehicle interior side when the airbag is deployed. The wire harness 26 positioned on the side surface (outside surface) of the vehicle interior side wall 22 does not hinder the inflation and deployment of the airbag 16.

  As described above, the airbag apparatus according to the above-described embodiment has the structure in which the airbag 16 is inflated and deployed between the occupant and the vehicle body 11, the airbag 16 is held in a folded state, and the vehicle body is 11, and a wire harness 26 attached to the cover member 17. The cover member 17 has a U-shaped cross section that opens downward, and the airbag 16 is disposed inside the cover member 17. The wire harness 26 is disposed on the surface on the vehicle interior side of the vehicle interior side wall 22 that regulates the deployment direction of the airbag 16 in the cover member 17.

According to this configuration, since the wire harness 26 is positioned on the outer surface of the cover member 17 on the vehicle interior side, the workability when the wire harness 26 is attached to the cover member 17 is improved, and the airbag 16 and the cover member are improved. 17 and when the wire harness 26 is assembled to the vehicle body 11 in a module state, the wire harness 26 can be connected to the vehicle body side before and after the assembly and the wire harness 26 can be visually observed at the time of the assembly. The simultaneous assembly of the cover member 17 and the wire harness 26 to the vehicle body 11 can be performed more accurately.
Further, the wire harness 26 is disposed on the vehicle interior side wall 22 (guide wall) that regulates the deployment direction of the airbag 16 in the U-shaped cover member 17, so that the wire together with the vehicle interior side wall 22 is used when the airbag is deployed. Since the harness 26 moves away from the airbag 16 and the action of the deploying force is suppressed, the attachment stability of the wire harness 26 can be ensured satisfactorily.

  In the arrangement structure of the airbag device, the airbag 16 includes a mounting piece 18 to the vehicle body 11 on the opposite side of the deployment direction of the airbag 16, and the cover member 17 has a mounting piece 18 on the mounting piece 18 side. By providing the sub-attachment portion 28 for attaching the wire harness 26, the sub-attachment portion 28 for the wire harness 26 is positioned on the side opposite to the deployment direction of the airbag 16, and the cover member 17 is pushed when the airbag is deployed. Opening is not obstructed and the airbag 16 can be deployed smoothly and accurately.

  Furthermore, in the arrangement structure of the airbag device, the sub-attachment portion 28 is offset from the attachment piece 18 by a predetermined distance toward the vehicle interior side, whereby the wire harness 26 is assembled to the cover member 17. Work can be performed more easily, and simultaneous assembly of the airbag 16, the cover member 17, and the wire harness 26 to the vehicle body 11 can be performed more accurately.

The present invention is not limited to the above-described embodiment. For example, as shown in FIG. 4, a wire harness 26 (accessory part) is disposed above the upper wall 23 (on the attachment piece 18 side) of the cover member 17. It is good also as the structure which carried out. At this time, the wire harness 26 is disposed on the surface on the vehicle interior side of the auxiliary mounting portion 28 above the vehicle interior side wall 22.
For example, as shown in FIG. 5, a hollow width attaching portion 28 ′ is provided on the surface of the cover member 17 on the vehicle interior side of the vehicle interior side wall 22, and the vehicle interior side surface of the width attachment portion 28 ′ is provided. It is good also as a structure which has arrange | positioned the wire harness 26 (accessory component). At this time, since the width attaching portion 28 ′ has a buffering action, it can absorb an impact on a load acting on the wire harness 26 or a load caused by a secondary collision of the occupant.
Here, the accessory attached to the cover member 17 may be a drain hose other than the wire harness 26, and may be an assist grip, a room lamp, or the like.

It is a perspective view from the upper right rear of the vehicle in the Example of this invention. It is a disassembled perspective view of the principal part of the curtain airbag apparatus and wire harness of the vehicle left side. It is AA sectional drawing of FIG. 1, (a) is before airbag deployment, (b) shows after airbag deployment, respectively. It is sectional drawing equivalent to Fig.3 (a) which shows the modification of the said Example. It is sectional drawing equivalent to Fig.3 (a) which shows the other modification of the said Example.

Explanation of symbols

11 Car body 16 Airbag 17 Cover member 18 Attachment piece (attachment part)
22 Car interior side wall 26 Wire harness (accessory)
28 Sub-mounting part

Claims (3)

An airbag device comprising an airbag that is inflated and deployed between an occupant and a vehicle body, a cover member that holds the airbag in a folded state and is attached to the vehicle body, and an accessory that is attached to the cover member The arrangement structure of
An arrangement structure of an airbag device, wherein the accessory part is arranged on a surface of a vehicle interior side wall of the cover member on the vehicle interior side. 2. The air bag according to claim 1, further comprising: a mounting portion for mounting the airbag on a side opposite to a deployment direction of the airbag; and a sub-mounting portion for mounting the accessory part on the mounting portion side of the cover member. 2. An arrangement structure of the airbag device according to 1. The arrangement structure of the airbag device according to claim 1, wherein the sub-attachment portion is provided to be offset toward a vehicle interior side by a predetermined distance from the attachment portion.

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