JP2007230361A - Crew protection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an interior trim structure that does not hinder the development of a curtain airbag.
A roof trim 12 is disposed in an upper portion of the vehicle interior, and covers the vehicle interior side of a side rail extending in the front-rear direction of the vehicle body above the vehicle body side portion. The upper end of the door sash trim 10 is disposed so as to face the side end of the roof trim 12. A folded airbag 28 constituting a curtain airbag is accommodated in a space extending in the front-rear direction between the side rail and the roof trim 12. Between the upper end portion of the door sash trim 10 and the side end portion of the roof trim 12, a panel 14 having a hinge structure that is separate from the roof trim 12 and that covers the passenger compartment side of the side rail is disposed. .
[Selection] Figure 2

Description

  The present invention relates to an occupant protection device including a curtain airbag, and more particularly to an occupant protection device suitable for a center pillarless vehicle having a front door and a rear door continuous with a front door.

In recent years, curtain airbags that spread from the front pillars to the side of the vehicle interior have spread. Such a curtain airbag has a front pillar, a side rail extending in the front-rear direction continuously above the side of the vehicle body, a rear pillar continuous from the side rail, and a trim member that covers each vehicle interior side. It is stored along the longitudinal direction of the vehicle. When a strong impact is received due to a collision or the like from the side of the vehicle, it spreads so as to cover the entire side surface of the passenger compartment and relaxes the impact on the passenger (see Patent Document 1).
JP 2003-285708 A

  By the way, in a vehicle having a curtain airbag, when the curtain airbag is deployed, the pillar trim located in the deployment direction may interfere with the curtain airbag, thereby inhibiting the deployment. Therefore, in the above prior art, the bracket mounting portion for fixing the curtain airbag to the pillar panel is provided below the overlapping portion of the side roof panel and the pillar panel, and the holding portion for holding the airbag is provided from the upper end of the pillar trim. Arranging on the indoor side prevents the pillar trim and the curtain airbag from interfering with each other.

  However, since the above prior art has a structure in which the curtain airbag is fixed to the pillar panel, the structure in which the curtain airbag is not fixed to the pillar panel, particularly in a center pillarless vehicle having a front door and a rear door continuous with the front door. The above prior art cannot be applied. In particular, in a center pillarless vehicle, the side edge of the roof trim is located above the door sash trim due to the layout of the door sash trim that covers the vehicle interior side of the door sash and the roof trim that covers the vehicle interior side of the side rail and roof panel. There was concern that it would be located and hinder the deployment of curtain airbags.

  An object of the present invention is to provide an occupant protection device that does not hinder the deployment of a curtain airbag in view of the above-described circumstances.

  The occupant protection device according to claim 1 is a first trim member that covers a vehicle interior side of a side rail that extends in the vehicle longitudinal direction above the vehicle body side portion, and that extends in the vehicle vertical direction below the side rail. The vehicle body side member is disposed in the front-rear direction in a space between the second trim member that covers the vehicle interior side and whose upper end faces the first trim member, and the side rail and the first trim member. An occupant protection device including a curtain airbag that is inflated and deployed from a side end portion of a trim member into a vehicle interior, and the vehicle of the side rail is located at least on the side of the first trim member facing the second trim member. A third trim member that covers the interior side is provided, and the third trim member includes a base that is fixed to the side rail, and a pivot that is connected to the base and faces the vehicle interior. Curtain air bar Characterized by rotating relative to the base during grayed deployment.

  According to the occupant protection device of the first aspect, the third trim member is provided on the side of the first trim member facing above the second trim member, and the rotating portion of the third trim member is provided when the curtain airbag is deployed. The airbag is deployed from between the third trim member and the first trim member by rotating with respect to the base. Therefore, even in a structure in which the curtain airbag is not fixed to the pillar panel, the airbag can be reliably deployed without interfering with the second trim member. In addition, since the curtain airbag can be reliably deployed without being affected by the second trim member, the degree of freedom of layout of the second trim member in the vehicle body width direction is improved, and the interior padding (the occupant is attached to the second trim member) Corresponding to the impact absorption performance at the time of secondary collision is also facilitated.

  The occupant protection device according to claim 2 is characterized in that the rotating portion is hinged to the base portion by a connecting portion at an outer end portion, and the base portion is engaged by a claw portion provided inside the connecting portion. It is characterized by being fitted with a joint hole.

  According to the occupant protection device of the second aspect, since the claw portion of the rotating portion is fitted in the engagement hole of the base portion in the normal time when the curtain airbag is not deployed, the third trim member is used as the side rail. On the other hand, when the curtain airbag is deployed, the claw portion is disengaged from the engagement hole, and the rotating portion is rotated with respect to the base portion from the connecting portion to the second trim member of the airbag. Can prevent interference.

  The occupant protection device according to claim 3 is characterized in that the third trim member sandwiches the first trim member between the base portion and the rotating portion.

  According to the occupant protection device of the third aspect, since the first trim member is sandwiched between the base portion and the rotating portion of the third trim member, the alignment quality of the first trim member can be improved.

  According to the occupant protection device of claim 4, the second trim member includes a front door sash trim that covers the rear door sash of the front door, and a front side of the rear door that is provided continuously to the front door sash trim. A rear door sash trim that covers the door sash is provided.

  According to the occupant protection device of the fourth aspect, the present invention is particularly applicable to a so-called center pillarless vehicle in which the second trim member includes a front door door sash trim and a rear door sash trim provided continuously to the front door sash trim. It is advantageous. That is, in the center pillarless vehicle, the curtain airbag must be fixed to the side rail, and the deployment of the curtain airbag may be particularly hindered due to the layout of the door sash trim and the roof trim as the first trim member. However, according to the present invention, the curtain airbag can be reliably deployed by the third trim member. In addition, the door sash trim can be easily accommodated in the interior padding.

  According to the occupant protection device of the present invention, the airbag can be reliably deployed without interfering with the second trim member even in a structure in which the curtain airbag is not fixed to the pillar panel.

  Hereinafter, an occupant protection device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a view of an occupant protection device in a center pillarless vehicle according to an embodiment of the present invention as seen from the vehicle interior, and FIG. 2 is a perspective view of a hinged panel (deployed state) which is a third trim member. 3 is a cross-sectional view taken along line AA in FIG. 1, and FIG. 4 is a cross-sectional view when the curtain airbag is deployed in FIG.

  A roof trim (first trim member) 12 is disposed in the upper part of the vehicle interior, and is configured by a side rail inner 16 and a side rail outer 26 that extend in the front-rear direction of the vehicle body above the side of the vehicle body. It covers the interior side of the side rail.

  The door sash trim (second trim member) 10 includes a door sash trim front 10a located on the front side of the vehicle (in the direction of the arrow in FIG. 1) and a door sash trim rear 10b located on the rear side of the vehicle. The upper end of the trim 10 is disposed so as to face the side end of the roof trim 12. The door sash trim 10 covers a vehicle interior side of a vehicle body side member (not shown) extending in the vehicle body vertical direction below the side rail. A folded airbag 28 constituting a curtain airbag is accommodated in a space extending in the front-rear direction between the side rail and the roof trim 12.

  Between the upper end part of the door sash trim 10 and the side end part of the roof trim 12, a panel (third trim member) 14 having a hinge structure separate from the roof trim 12 that covers the side rail compartment side. Is arranged. As shown in FIG. 2, the panel 14 includes a base portion 20 fixed to the side rail inner 16 via bolts 18, and a rotating portion 24 that is connected to the base portion 20 by a hinge structure 22 and faces the vehicle interior. The base portion 20 has a fixing region 20b provided with a through hole 20a through which the bolt 18 passes, and the claw portion 24a provided in the rotating portion 24 is fitted at a position lowered by one step at both ends of the fixing region 20b. It has an engagement region 20d provided with an engagement hole 20c.

  As shown in FIG. 3, the side rail inner 16 and the side rail outer 26 are overlapped and joined at the vehicle side portion. The base portion 20 of the panel 14 is fixed to the side rail inner 16 with bolts 18. In the state where the curtain airbag is not inflated and deployed, the panel 14 is fitted with the claw portion 24a provided in the rotation portion 24 in the engagement hole 20c of the engagement region 20d, and the rotation portion 24 is the base portion 20. The rotating part 24 faces the vehicle interior. Further, in this state, the side end portion of the roof trim 12 is sandwiched between the base portion 20 of the panel 14 and the end portion on the vehicle interior side of the rotating portion 24. The airbag bag 28 constituting the curtain airbag is fixed to the side rail inner 16 via a bracket 30 with bolts (not shown). A weather strip 32 is disposed on the vehicle side portion side of the lower portion of the panel 14, and an end portion of the weather strip 32 on the vehicle inner side is pressed against the lower portion of the panel 14.

  According to the occupant protection device according to this embodiment, the side end portion of the roof trim 12 is sandwiched between the base portion 20 of the panel 14 and the end portion of the rotating portion 24 on the vehicle interior side. And the combined quality can be improved.

  FIG. 4 is a cross-sectional view showing a state where the airbag bag 28 of the curtain airbag is inflated and deployed. When receiving a strong impact such as a collision from the side of the vehicle, the airbag bag 28 constituting the curtain airbag is inflated and deployed. In this case, when the rotating portion 24 of the panel 14 provided between the upper end portion of the door sash trim 10 and the side end portion of the roof trim 12 is rotated with respect to the base portion 20, the panel 14 and the roof trim are arranged. A space is formed between the air bag 12 and the air bag 28 from the space.

  That is, in a normal time when the curtain airbag is not inflated and deployed, the pawl portion 24a of the rotating portion 24 is fitted into the engagement hole 20c of the base portion 20, so that the panel 14 can be securely fixed to the side rail. When the curtain airbag is deployed, the claw portion 24a is disengaged from the engagement hole 20c, and the rotating portion 24 is rotated with respect to the base portion 20 with the connecting portion as a starting point, so that a space is provided between the panel 14 and the roof trim 12. Since the airbag bag 28 is inflated and deployed from this space, interference of the airbag with the door sash trim 10 can be prevented.

  Therefore, the airbag bag 28 can be reliably deployed without interfering with the door sash trim 10 in a structure in which the curtain airbag is not fixed to the pillar panel, particularly in a center pillarless vehicle. In addition, since the curtain airbag can be reliably deployed without being affected by the door sash trim 10, the degree of freedom of layout of the door sash trim 10 in the vehicle body width direction is improved, and the interior padding (two passengers in the door sash trim) is improved. It becomes easy to cope with the impact absorption performance at the time of the next collision.

  Further, the present invention is particularly advantageous in a so-called center pillarless vehicle in which the door sash trim 10 includes a front door door sash trim and a rear door sash trim provided continuously to the front door sash trim. That is, in the center pillarless vehicle, the curtain airbag must be fixed to the side rail, and the deployment of the curtain airbag may be particularly hindered due to the layout of the door sash trim 10 and the roof trim 12. Since the panel 14 is provided between the door sash trim 10 and the roof trim 12, the curtain airbag can be reliably deployed, and the airbag bag spreads so as to cover the entire side surface of the passenger compartment, and is used for passengers. Impact can be mitigated. In addition, the door sash trim can be easily accommodated in the interior padding.

  Moreover, productivity can be improved by manufacturing the panel 14 which connected the base 20 and the rotation part 24 with the hinge structure by integral molding, and reduction of cost can be aimed at. In addition, since the panel 14 is disposed between the upper portion of the door sash trim 10 and the roof trim 12, it is possible to freely set the dimension in the width direction of the vehicle of the door sash trim 10, and in the center pillarless structure vehicle, The curtain airbag can be easily installed.

  In the above-described embodiment, the airbag bag 28 is fixed to the side rail inner 16 with the bolt 18 via the bracket 30, but the airbag bag is directly fixed to the side rail inner with the bolt. Also good.

It is the figure which looked at the interior trim in the center pillar-less structure vehicle which concerns on embodiment of this invention from the vehicle interior. It is a perspective view of the panel with hinges (deployment state) concerning an embodiment of this invention. It is AA sectional drawing in FIG. It is sectional drawing at the time of the curtain airbag deployment in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Door sash trim, 12 ... Roof trim, 14 ... Panel, 16 ... Side rail inner, 18 ... Bolt, 20 ... Base, 24 ... Turning part, 26 ... Side rail outer, 28 ... Air bag, 30 ... Bracket 32 ... Weather strip.

Claims (4)

A first trim member that covers the vehicle interior side of the side rail that extends in the vehicle longitudinal direction above the vehicle body side portion, and the vehicle interior side of the vehicle body side member that extends in the vehicle vertical direction below the side rail and A second trim member having an upper end facing the first trim member and a space between the side rail and the first trim member are disposed in the front-rear direction, and from the side end portion of the first trim member to the vehicle interior at the time of a collision. In an occupant protection device comprising a curtain airbag to be inflated and deployed,
A third trim member that covers the vehicle interior side of the side rail is provided at least on the side of the first trim member facing above the second trim member, and the third trim member has a base fixed to the side rail; The occupant protection device according to claim 1, further comprising: a pivot portion coupled to the base portion and facing the vehicle interior, wherein the pivot portion pivots relative to the base portion when the curtain airbag is deployed.   The rotating portion is hinged to the base portion by a connecting portion at an outer end portion, and is fitted to an engagement hole of the base portion by a claw portion provided inside the connecting portion. The occupant protection device according to claim 1.   The occupant protection device according to claim 1 or 2, wherein the third trim member sandwiches the first trim member between the base portion and the rotating portion. The second trim member includes a front door sash trim that covers the rear door sash of the front door, and a rear door sash trim that is provided continuously with the front door sash trim and covers the front door sash of the rear door. The occupant protection device according to any one of claims 1 to 3.

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