Curtain airbag device holding structure

Abstract

To provide a curtain airbag device holding structure capable of suppressing interference between a strap of a curtain airbag device and a pillar garnish.SOLUTION: The curtain airbag device holding structure includes a holding portion and a limiting portion. The holding portion holds a curtain airbag of the curtain airbag device and is coupled to the roof. The limiting portion is coupled to the vehicle body, is located between the strap and the pillar garnish, and contacts the strap to limit movement of the strap in a direction away from the pillar and toward the pillar garnish.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a retention structure for a curtain airbag device. [Background technology]

[0002] Conventionally, a curtain airbag device holding structure that is provided in a vehicle and holds a curtain airbag device is known (see, for example, Patent Document 1). The curtain airbag device has a curtain airbag that is attached to the side of the roof of the vehicle body by the curtain airbag device holding structure, and a strap that is connected to the curtain airbag and is positioned between the vehicle body pillar and the pillar garnish. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-173551 Summary of the Invention [Problem to be solved by the invention]

[0004] In this type of curtain airbag device holding structure, there is a risk that the strap of the curtain airbag may interfere with the pillar garnish when the pillar garnish is attached or when the curtain airbag is deployed.

[0005] The present invention has been made in view of the above, and one of its objects is to provide a curtain airbag device holding structure that can suppress interference between the strap of the curtain airbag device and the pillar garnish. [Means for solving the problem]

[0006] The curtain airbag device holding structure of the present invention is a curtain airbag device holding structure provided in a vehicle having a vehicle body including a roof and a pillar connected to the roof, and a pillar garnish that covers the pillar on the passenger compartment side of the pillar, and is equipped with a holding portion connected to the roof that holds the curtain airbag of a curtain airbag device having a curtain airbag located on the passenger compartment side of the roof and a strap that is connected to the curtain airbag and located between the pillar and the pillar garnish, and a limiting portion that is connected to the vehicle body, is located between the strap and the pillar garnish, and comes into contact with the strap to limit movement of the strap in a direction away from the pillar and toward the pillar garnish. [Effects of the Invention]

[0007] According to the present invention, it is possible to obtain a retention structure for a curtain airbag device that can suppress interference between the strap of the curtain airbag device and the pillar garnish. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram schematically illustrating a part of a vehicle according to an embodiment. [Figure 2] FIG. 2 is a cross-sectional view of a portion including a pillar in the vehicle according to the embodiment. [Figure 3] FIG. 3 is a perspective view of a portion including a curtain airbag device holding structure in a vehicle according to an embodiment. [Figure 4] FIG. 4 is a perspective view of a portion including a curtain airbag device holding structure in a vehicle according to an embodiment. [Figure 5] FIG. 5 is a perspective view of a portion including a curtain airbag device holding structure in a vehicle according to an embodiment. [Figure 6] FIG. 6 is a perspective view of a portion including a curtain airbag device holding structure in a vehicle according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] One embodiment will be described below. Note that the drawings are schematic, and the dimensional relationships and ratios of elements may differ from reality. Furthermore, the drawings may include portions where the dimensional relationships and ratios differ from one another.

[0010] FIG. 1 is a diagram schematically illustrating a portion of a vehicle 1 according to an embodiment. As shown in FIG. 1, the vehicle 1 includes a vehicle body 10, a garnish portion 11, a curtain airbag device 12, and a curtain airbag device holding structure 13. The vehicle body 10 includes a vehicle interior 100. The vehicle interior 100 includes seats for occupants to sit in, etc. The vehicle 1 is, for example, an automobile such as a passenger car. However, the vehicle 1 is not limited to the above. The curtain airbag device holding structure 13 is also referred to as a curtain airbag device holding structure.

[0011] Directions are indicated in each drawing. Arrow Fr indicates the front in the fore-and-aft direction of vehicle 1. Arrow Rr indicates the rear in the fore-and-aft direction of vehicle 1. Arrow U indicates the upward direction in the vertical direction of vehicle 1. Arrow D indicates the downward direction in the vertical direction of vehicle 1. Arrow IN indicates the direction toward the interior of vehicle compartment 100 (hereinafter also referred to as the interior direction). Arrow OUT indicates the direction toward the exterior of vehicle compartment 100 (hereinafter also referred to as the exterior direction). Unless otherwise specified below, the fore-and-aft direction, vertical direction, and width direction refer to the fore-and-aft direction, vertical direction, and width direction of vehicle 1.

[0012] The vehicle body 10 has a roof 21 and a front pillar 22. The vehicle body 10 includes a plurality of metal panel members assembled together. The front pillar 22 is an example of a pillar.

[0013] The roof 21 is located above the vehicle interior 100 and covers the vehicle interior 100. The roof 21 has roof side rails 21a. The roof side rails 21a are provided at the ends of the roof 21 in the width direction and extend in the front-rear direction.

[0014] The front pillars 22 are connected to the roof 21. The front pillars 22 extend forward and downward from the front ends of the roof side rails 21a. The front pillars 22 are also called A-pillars.

[0015] FIG. 2 is a cross-sectional view of a portion including a front pillar 22 in a vehicle 1 according to an embodiment. As shown in FIG. 2, the front pillar 22 has an outer panel 22a, an inner panel 22b, and a reinforcing panel 22c. The outer panel 22a is located on the vehicle exterior side relative to the inner panel 22b. In other words, the inner panel 22b is located on the vehicle interior side relative to the outer panel 22a. The outer panel 22a and the inner panel 22b are fixed in a stacked state. The reinforcing panel 22c is provided between the outer panel 22a and the inner panel 22b.

[0016] An opening trim 23 is fixed to a lower edge 22d (end) of the front pillar 22. The opening trim 23 has a fixed portion 23a and an extending portion 23b extending from the fixed portion 23a. The opening trim 23 is made of, for example, a rubber material.

[0017] 1, the garnish portion 11 has a pillar garnish 31 and a roof garnish (not shown). The roof garnish is located below the roof 21 and covers the roof 21. The roof garnish is fixed to the roof 21. The roof garnish is made of, for example, a synthetic resin material.

[0018] 1 and 2, the pillar garnish 31 covers the front pillar 22 on the vehicle interior 100 side of the front pillar 22. The pillar garnish 31 is fixed to the front pillar 22.

[0019] 2, the pillar garnish 31 has a main body 31a and a fixing portion 31b. The pillar garnish 31 is made of, for example, a synthetic resin material.

[0020] The main body 31a is located on the passenger compartment 100 side of the front pillar 22 and covers the front pillar 22. The main body 31a has an opposing wall 31c and an extending portion 31d. The opposing wall 31c is located on the passenger compartment 100 side of the front pillar 22 and faces the inner panel 22b of the front pillar 22. A plurality of fixing portions 31b are provided. Note that only one fixing portion 31b is shown in FIG. 2. The fixing portion 31b protrudes from the opposing wall 31c toward the front pillar 22. The fixing portion 31b is fixed to the inner panel 22b of the front pillar 22 by a clip 32. In other words, the pillar garnish 31 is fixed to the front pillar 22 by the clip 32.

[0021] A gap G1 is provided between a lower edge 31e (end) of the pillar garnish 31 and an edge 22d of the front pillar 22. The gap G1 is covered by the extension 23b of the opening trim 23.

[0022] 3 to 6 are perspective views of a portion including the curtain airbag device holding structure 13 in the vehicle 1 according to the embodiment, and are perspective views seen from different viewpoints.

[0023] As shown in FIGS. 3 to 6, the curtain airbag device 12 includes a curtain airbag 41, a strap 42, and an inflator (not shown).

[0024] The curtain airbag 41 is located on the passenger compartment 100 side of the roof 21. The curtain airbag 41 is attached to the roof side rail 21a by a curtain airbag device holding structure 13. The curtain airbag 41 is inflated and deployed from a stored state (non-deployed state, folded state: FIGS. 1 and 3 to 6) by the supply of gas by an inflator, and becomes a deployed state. In the deployed state, the curtain airbag 41 is located on the interior side of the vehicle relative to window glass or the like provided on the side of the vehicle body 10, and covers the window glass or the like.

[0025] The strap 42 is connected to the curtain airbag 41. The strap 42 extends forward from the front end of the curtain airbag 41. The strap 42 is located between the front pillar 22 and the pillar garnish 31. A tip end 42b (front end) of the strap 42 is connected (fixed) to the front pillar 22 by a fastener 44. The tip end 42a side of the strap 42 is folded back and bundled by a fastener 56. The fastener 56 is, for example, a tape.

[0026] 3 to 6, the curtain airbag device holding structure 13 has a holding member 50. The holding member 50 is made of a synthetic resin material or a metal material.

[0027] The holding member 50 has a case portion 51, an extending portion 52, and wall portions 53 and 54. That is, the case portion 51, the extending portion 52, and the wall portions 53 and 54 are included in the single member, the holding member 50. The case portion 51 is an example of a holding portion.

[0028] The case portion 51 holds the curtain airbag 41 and is connected (fixed) to the roof side rail 21a of the roof 21. The case portion 51 has a cross section that follows a semicircular arc shape, and has a recess 51a formed therein. The recess 51a opens downward toward the interior of the vehicle compartment 100 and penetrates the case portion 51 in the front-to-rear direction. The curtain airbag 41 is housed in the recess 51a. The curtain airbag 41 has an upper end connected to the case portion 51 and is fastened to the case portion 51 by a fastener 43 such as a band in a housed state (non-deployed state).

[0029] The extension portion 52 extends forward and downward from the case portion 51 and is located between the front pillar 22 and the pillar garnish 31. The extension portion 52 is also referred to as a tongue portion. The extension portion 52 has wall portions 52a and 52b. The extension portion 52 (wall portions 52a and 52b) is fixed to the vehicle body 10 (roof side rail 21a) via the case portion 51. The strap 42 is fixed to the wall portions 52a and 52b by fasteners 57. The fasteners 57 are, for example, tape. The wall portion 52a is an example of a limiting portion.

[0030] As shown in FIG. 2, the wall portion 52a is located to the side of the strap 42, between the strap 42 and the pillar garnish 31. The wall portion 52a has a surface 52aa that faces the surface 42c of the strap 42. The surface 52aa of the wall portion 52a comes into contact with the strap 42, thereby restricting movement of the strap 42 in a direction away from the front pillar 22 and toward the pillar garnish 31 (the direction of arrow D2). Furthermore, the surface 52aa of the wall portion 52a guides the strap 42, which moves in response to the deployment of the curtain airbag 41, toward the gap G1 provided between the front pillar 22 and the pillar garnish 31. In FIG. 2, the direction in which the wall portion 52a guides the strap 42 is indicated by the arrow D1. The wall portion 52a is also referred to as a guide portion.

[0031] The wall portion 52b is located above the strap 42, between the strap 42 and the pillar garnish 31. The wall portion 52b has a surface 52ba that faces the upper edge of the strap 42. The surface 52ba of the wall portion 52b comes into contact with the strap 42, thereby restricting movement of the strap 42 upward (toward the fixing portion 31b of the pillar garnish 31).

[0032] 3, a notch 52c is provided in the extension portion 52. The strap 42 passes from the curtain airbag 41 through the notch 52c and overlaps with the surface 52aa of the wall portion 52a.

[0033] As shown in FIGS. 2 to 6, the wall portions 53, 54 protrude from the extension portion 52 toward the pillar garnish 31. The wall portions 53, 54 face the pillar garnish 31 with a gap therebetween. The wall portions 53, 54 may be in contact with the pillar garnish 31. The wall portions 53, 54 are arranged with a gap therebetween in the extension direction of the extension portion 52, i.e., in the extension direction of the front pillar 22. The wall portions 53, 54 are arranged so as to close a space 101 ( FIGS. 2 and 3 ) between the pillar garnish 31 and the extension portion 52. The wall portion 53 is also provided with a guide portion 53a. The guide portion 53a comes into contact with the clip 32 and the fixing portion 31b when the pillar garnish 31 is attached, thereby guiding the pillar garnish 31 so that the clip 32 is directed toward the attachment hole in the front pillar 22.

[0034] In the above configuration, when a predetermined deployment condition for the curtain airbag 41 is satisfied, gas is supplied from the inflator to the curtain airbag 41, causing the curtain airbag 41 to inflate and deploy downward within the vehicle cabin 100. For example, the curtain airbag 41 deploys downward within the vehicle cabin 100 from between the roof side rail 21a and the roof garnish. This deployment of the curtain airbag 41 causes the strap 42 to move. At this time, the wall portion 52a, via the surface 52aa, guides the strap 42, which moves in response to the deployment of the curtain airbag 41, toward the gap G1 provided between the front pillar 22 and the pillar garnish 31. This allows the strap 42 to move from the gap G1 into the vehicle cabin 100 without interfering with the opposing wall 31c of the pillar garnish 31. At this time, the strap 42 elastically deforms the extension portion 23b of the opening trim 23 and moves into the vehicle cabin 100.

[0035] Furthermore, in the above configuration, the pillar garnish 31 is attached to the front pillar 22 after the curtain airbag device 12 and the curtain airbag device holding structure 13 are attached to the vehicle body 10. At this time, the wall portion 52a restricts movement of the strap 42 in a direction away from the front pillar 22 and toward the pillar garnish 31 (the direction of arrow D2), thereby suppressing interference between the strap 42 and the pillar garnish 31.

[0036] As described above, the curtain airbag device retention structure 13 of this embodiment is provided in the vehicle 1 and includes the case portion 51 (retention portion) and the wall portion 52a (restriction portion). The vehicle 1 includes the vehicle body 10 and the pillar garnish 31 (garnish). The vehicle body 10 includes the roof 21 and the front pillar 22 (pillar) connected to the roof 21. The pillar garnish 31 covers the front pillar 22 on the passenger compartment 100 side of the front pillar 22. The case portion 51 retains the curtain airbag 41 of the curtain airbag device 12 and is connected to the roof 21. The curtain airbag device 12 includes the curtain airbag 41 located on the passenger compartment 100 side of the roof 21, and the strap 42 connected to the curtain airbag 41 and located between the front pillar 22 and the pillar garnish 31. The wall portion 52a is connected to the vehicle body 10 and is located between the strap 42 and the pillar garnish 31, and by contacting the strap 42, restricts the movement of the strap 42 in a direction away from the front pillar 22 and toward the pillar garnish 31 (in the direction of arrow D2).

[0037] According to this configuration, the wall portion 52a restricts movement of the strap 42 in a direction (the direction of arrow D2) away from the front pillar 22 and toward the pillar garnish 31, thereby suppressing interference between the strap 42 and the pillar garnish 31 (the opposing wall 31c and the fixing portion 31b) when the pillar garnish 31 is attached or when the curtain airbag 41 is deployed. This makes it possible to suppress damage to the pillar garnish 31. Also, it is possible to suppress incorrect assembly of the strap 42.

[0038] The curtain airbag device holding structure 13 also includes an extension portion 52. The extension portion 52 extends from the case portion 51 and is located between the front pillar 22 and the pillar garnish 31. The extension portion 52 is provided with a wall portion 52a.

[0039] According to this configuration, the number of parts of the curtain airbag device holding structure 13 can be reduced.

[0040] The curtain airbag device 12 also includes wall portions 53 and 54. The wall portions 53 and 54 protrude from the extension portion 52 toward the pillar garnish 31 and face the pillar garnish 31.

[0041] According to this configuration, when the pillar garnish 31 deforms and hits the wall portions 53, 54, further deformation of the pillar garnish 31 is suppressed by the wall portions 53, 54. That is, the wall portions 53, 54 can suppress deformation of the pillar garnish 31.

[0042] In addition, the wall portion 52a guides the strap 42, which moves in response to the deployment of the curtain airbag 41, toward the gap G1 provided between the front pillar 22 and the pillar garnish 31.

[0043] According to this configuration, when the curtain airbag 41 is deployed, the wall portion 52a can guide the strap 42 toward the gap G1 provided between the front pillar 22 and the pillar garnish 31, allowing the strap 42 to move smoothly and allowing the curtain airbag 41 to be deployed stably.

[0044] In the above embodiment, the pillar is the front pillar 22 (A pillar), but is not limited to this. For example, the pillar may be a center pillar (B pillar) or a rear pillar (C pillar).

[0045] In the above embodiment, the wall portion 52a is provided integrally with the case portion 51, but the present invention is not limited to this. For example, the wall portion 52a may be provided separately from the case portion 51 and connected to the vehicle body 10 (the front pillar 22, etc.).

[0046] Although the embodiments of the present invention have been described, the above embodiments are presented as examples and are not intended to limit the scope of the invention. The above embodiments can be implemented in various other forms, and various omissions, substitutions, modifications, and combinations can be made without departing from the spirit of the invention. The above embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the inventions described in the claims and their equivalents. [Explanation of symbols]

[0047] 1...Vehicle 10...Body 13...Curtain airbag device retention structure 21...Roof 22...Front pillar (pillar) 31...Pillar garnish (garnish) 41...Curtain airbag 42...Strap 51...Case part (holding part) 52...Extending part 52a...wall portion (restriction portion) 53,54…Wall part 100…Vehicle compartment

Claims

1. A curtain airbag device retention structure provided in a vehicle including a vehicle body including a roof and a pillar connected to the roof, and a pillar garnish that covers the pillar on the passenger compartment side of the pillar, a retaining portion that holds the curtain airbag of a curtain airbag device, the curtain airbag being located on the passenger compartment side of the roof and a strap that is connected to the curtain airbag and is located between the pillar and the pillar garnish; and the retaining portion that is connected to the roof. a limiting portion coupled to the vehicle body, positioned between the strap and the pillar garnish, and contacting the strap to limit movement of the strap in a direction away from the pillar and toward the pillar garnish; A curtain airbag device holding structure comprising:

2. an extension portion extending from the holding portion and positioned between the pillar and the pillar garnish; The limiting portion is provided on the extending portion, The curtain airbag device retaining structure according to claim 1.

3. a wall portion that protrudes from the extension portion toward the pillar garnish and faces the pillar garnish; The curtain airbag device retaining structure according to claim 2.

4. The limiting portion guides the strap, which moves in response to the deployment of the curtain airbag, toward a gap provided between the pillar and the pillar garnish. The curtain airbag device holding structure according to any one of claims 1 to 3.

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