JP2011105079A - Installation structure to vehicle of curtain airbag deployment assisting member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To further improve guide performance of a curtain airbag deployment assisting member. <P>SOLUTION: This installation structure is constituted for installing a deployment assisting member 14 on an inner panel 3 for constituting a roof side rail, for guiding a deploying airbag 13 so as to guide to a cabin, when deploying the airbag 13 stored on the anti-cabin side of a roof head lining 5 for covering the roof side rail of a vehicle. The deployment assisting member 14 includes a guide wall part 14a and a reinforcing rib 14b for guiding the airbag 13 to the cabin. When deploying at least the airbag 13, the deployment assisting member 14 is installed so that the reinforcing rib 14b abuts on the inner panel 3. Since the guide wall part can be restrained from moving when deploying the airbag by this result, the deterioration in the guide performance for guiding the deploying airbag to the cabin side, can be restrained. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a mounting structure of a deployment auxiliary member that guides deployment of a curtain airbag that protects the head of an occupant, for example, in the event of a collision from the side of the vehicle (hereinafter, abbreviated as a side collision).

  The curtain airbag device deploys an airbag having a plurality of chambers in a curtain shape along the side door glass when a high load is applied from the side of the vehicle body.

  The airbag of the curtain airbag device is housed in a folded state on the side opposite to the passenger compartment of a roof head lining attached so as to cover the roof side rail.

  At the time of deployment, the roof head lining is pushed from the non-cabinet side to the cabin side by the airbag that is deployed, the engagement between the tip of the roof trim and the pillar trim is disengaged, and the tip side is pushed toward the cabin interior. An airbag is deployed in the passenger compartment.

  When the airbag is caught by the pillar trim during deployment into the vehicle interior, there are cases where the predetermined deployment in the vehicle interior cannot be performed.

  Therefore, a deployment assisting member that guides the airbag being deployed to the vehicle compartment side is attached to an inner panel that is a member constituting the roof side rail (for example, Patent Document 1).

  However, since the deployment auxiliary member disclosed in Patent Document 1 has a structure in which a bent plate member is simply attached on the upper side thereof, as shown in FIG. The two guide walls 2a move in the direction indicated by the arrow. When the guide wall portion 2a moves, the guide performance for guiding the airbag 1 being deployed to the vehicle compartment side deteriorates. In FIG. 7, 3 is an inner panel, 4 is a pillar trim, and 5 is a roof head lining.

  In addition, the said upper side of the expansion | deployment auxiliary member means the part located in the ceiling side direction of the vehicle of an expansion | deployment auxiliary member in the state which attached the expansion | deployment auxiliary member to the inner panel.

JP 2002-53005 A

  The problem to be solved by the present invention is that the deployment auxiliary member disclosed in Patent Document 1 has a structure in which a folded plate-like member is attached on the upper side thereof, so that the guide wall moves when the airbag is deployed. However, the guide performance is poor.

  An object of the present invention is to further improve the guide performance of a deployment assisting member that guides an airbag being deployed to the passenger compartment side based on such a viewpoint.

That is, the structure for attaching the curtain airbag deployment assisting member of the present invention to a vehicle is as follows:
Constructs a roof side rail for a deployment auxiliary member that guides the airbag being deployed to the cabin when the airbag stored on the side opposite to the cabin of the roof head lining that covers the roof side rail of the vehicle is deployed Mounting structure to the inner panel
The deployment assisting member includes a guide wall portion that guides the airbag to the passenger compartment and a reinforcing rib, and at least when the airbag is deployed, the deployment assisting member is attached so that the reinforcing rib contacts the inner panel. Is the most important feature.

  In the mounting structure of the present invention, the reinforcement rib is provided on the guide wall portion of the deployment assisting member, and the deployment assisting member is mounted so that the reinforcement rib comes into contact with the inner panel at least when the airbag is deployed. It can suppress effectively that a wall part moves.

  In addition, when the deployment assisting member is attached so that the portion of the guide wall that faces the pillar trim is in contact with the pillar trim when the airbag is deployed, the pillar trim is attached to the guide wall of the deployment assisting member when the airbag is deployed. It is restrained by the said location and does not move.

  Further, the guide wall portion of the deployment assisting member is extended so as to have an S-shaped cross section, and a reinforcing rib is provided on the extended wall surface side opposite to the installation surface of the reinforcing rib provided on the guide wall portion. When it is attached to the vehicle, the attached state becomes more stable. Therefore, the movement of the guide wall portion when the airbag is deployed can be more effectively suppressed.

  In the present invention, the reinforcing rib is provided on the guide wall portion of the deployment assisting member, and the deployment assisting member is attached so that the reinforcing rib comes into contact with the inner panel at least when the airbag is deployed. The amount of movement can be suppressed. Therefore, it is possible to minimize the deterioration of the guide performance for guiding the airbag being deployed to the passenger compartment side.

BRIEF DESCRIPTION OF THE DRAWINGS It is the principal part schematic of the curtain airbag apparatus which employ | adopted the attachment structure of this invention, (a) is the figure after airbag deployment, (b) is the figure of the accommodation state which folded the airbag, (c) is (b) FIG. It is sectional drawing of the BB part of FIG.1 (c) explaining the 1st example of the attachment structure to the vehicle of the expansion | deployment auxiliary member of the curtain airbag of this invention. It is the same figure as FIG. 2 explaining the 2nd example of the attachment structure to the vehicle of the expansion | deployment auxiliary member of the curtain airbag of this invention. It is a figure similar to FIG. 2 explaining the 3rd example of the attachment structure to the vehicle of the expansion | deployment auxiliary member of the curtain airbag of this invention. It is a figure similar to FIG. 2 explaining the 4th example of the attachment structure to the vehicle of the expansion | deployment auxiliary member of the curtain airbag of this invention. It is a figure similar to FIG. 2 explaining the 5th example of the attachment structure to the vehicle of the expansion | deployment auxiliary member of the curtain airbag of this invention. It is a schematic section explaining the problem of the attachment structure to the vehicle of the expansion | deployment auxiliary member of the conventional curtain airbag.

  In the present invention, for the purpose of further improving the guide performance of the deployment assisting member, a reinforcement rib is provided on the guide wall portion of the deployment assisting member so that the reinforcement rib contacts the inner panel at least when the airbag is deployed. Realized by attaching a deployment aid.

Hereinafter, various exemplary embodiments for carrying out the present invention will be described with reference to FIGS.
In the present specification, a portion or direction positioned in the direction toward the ceiling of the vehicle relative to a certain part is expressed as a term including “up” or “up”. In addition, a portion or direction that is positioned in the floor direction of the vehicle relative to a certain part is expressed as a term including “lower” or “lower”.

  Reference numeral 11 denotes a curtain airbag device attached according to the present invention. The curtain airbag device is deployed by an inflator 12 and a high-pressure gas ejected from the inflator 12, and for example, an airbag 13 that protects the head of an occupant seated on the front and rear seats. This is a configuration provided.

  Among these, the airbag 13 has a configuration in which, for example, an airbag main body formed of OPW (one-piece woven) is provided with a chamber 13a that is deployed by the high-pressure gas and a duct 13b that guides the high-pressure gas to each chamber 13a. Yes (see FIG. 1 (a)).

  For example, as shown in FIG. 1 (b), the airbag 13 is folded in a roll shape in a substantially vertical direction and is elongated, along with the inflator 12, along the roof side rail portion of the passenger compartment. Stored between the roof side rail and the roof head lining.

  Then, when the sensor detects a high load of a predetermined value or more acting on the side of the vehicle body such as a side collision, the high pressure gas ejected from the inflator 12 in response to a signal from the sensor passes through each duct 13b. To be supplied.

  The present invention provides an inner panel that constitutes a roof side rail of a deployment auxiliary member 14 that guides the airbag 13 that is being deployed to guide the airbag 13 during deployment of the airbag 13 that is stored in the folded state. It is a mounting structure.

  For example, as shown in FIG. 2, the reinforcing rib 14b is installed on the inner panel 3 side of the guide wall portion 14a for guiding the airbag 13 to the passenger compartment of the deployment assisting member 14 attached to the inner panel 3 with, for example, bolts 15. is there. Then, when the airbag 13 is deployed, the deployment assisting member 14 is attached so that the reinforcing rib 14b contacts the inner panel 3.

  In the case of the above configuration, when the airbag 13 is deployed, the reinforcing rib 14a installed on the guide wall portion 14a of the deployment assisting member 14 contacts the inner panel 3, so that the guide wall portion 14a may move when the airbag is deployed. Absent. Note that the reinforcing rib 14 b may be in contact with the inner panel 3 in a state where the deployment assisting member 14 is attached to the inner panel 3.

  Further, in the case of the configuration in which the reinforcing ribs 14b are provided, a predetermined strength can be obtained even if the development assisting member 14 is made of a synthetic resin other than metal, so that the weight can be reduced.

  In the example shown in FIG. 2, the deployment assisting member 14 is attached to the inner panel 3 so that, for example, the surface 14aa of the guide wall portion 14a facing the pillar trim 4 comes into contact with the pillar trim 4 when the airbag 13 is deployed. ing.

  With such a configuration, the pillar trim 4 is not restrained and moved by the surface 14aa of the guide wall portion 14a of the deployment assisting member 14 when the airbag 13 is deployed. Therefore, it can be prevented that the roof head lining 5 falls into the vehicle interior together with the pillar trim 4 and the engagement between the tip of the roof head lining 5 and the pillar trim 4 is not released.

  Further, in the example shown in FIG. 2, the airbag 13, which is prevented from being deployed toward the non-vehicle compartment side by the protector portion 14 c formed at a position facing the guide wall portion 14 a of the deployment assisting member 14, is roof roof lining. It is located above the tip of 5.

  In this way, in the vicinity of the intersection A between the extending direction of the deployment direction restricting portion 14ab formed on the lower surface of the airbag 13 of the deployment assisting member 14 and the roof head lining 5, and toward the upper surface of the tip of the roof head lining 5. The airbag 13 is deployed (arrow FA). At the time of deployment, the airbag 13 pushes the upper side of the roof head lining 5, so that the airbag 13 deployed in the passenger compartment is disengaged from the front end of the roof head lining 5 and the pillar trim 4. It becomes difficult to get caught in.

  As shown in FIG. 2, when the airbag 13 is not in contact with the roof head lining 5 and has a slight gap as shown in FIG. The expansion force can be transmitted efficiently.

  FIG. 3 is a diagram showing a second example of the present invention. In the second example shown in FIG. 3, the guide wall portion 14a of the deployment assisting member 14 is extended so as to have an S-shaped cross section, and the reinforcing rib 14b provided on the guide wall portion 14a of the extension portion 14d. Reinforcing ribs 14b are also provided on the wall surface opposite to the installation surface. The extension 14 d is attached to the inner panel 3 with a bolt 15.

  In the case of this configuration, as shown in FIG. 2, the surface 14aa facing the pillar trim 4 of the guide wall portion 14a is attached rather than the configuration in which the deployment assisting member 14 is mounted so as to abut against the pillar trim 4 when the airbag 13 is deployed. The state becomes more stable. Therefore, the movement of the guide wall portion 14a when the airbag 13 is deployed can be more effectively suppressed.

  In the example of FIG. 2 or FIG. 3, the protector portion 14c is formed integrally with the guide wall portion 14a. However, both of these 14a and 14c are configured separately as shown in FIG. 4 or FIG. Or may be integrated by ultrasonic welding.

  In such a configuration, the protector portion 14c does not depend on the design of the vehicle body, and therefore the same protector portion 14c can be used for different vehicle types.

  The present invention is not limited to the above examples, and it goes without saying that the embodiments may be appropriately changed as long as they are included in the scope of the technical idea described in each claim.

  That is, the mounting structure described above is a preferable example of the present invention, and other embodiments can be implemented or performed by various methods. In particular, the present invention is not limited to the detailed shape, size, configuration, and the like of the components shown in the accompanying drawings unless otherwise specified in the present specification. In addition, expressions and terms used in the present specification are for the purpose of explanation, and are not limited thereto unless specifically limited.

  For example, the deployment direction restricting portion 14ab of the deployment assisting member 14 is not limited to the one that guides the airbag 13 downward at a large tilt angle as shown in FIGS. 2 to 5, but a small tilt angle as shown in FIG. It is also possible to guide it downward.

  Further, the airbag 13 to be attached according to the present invention is not limited to one formed by OPW (one piece woven), but may be formed by sewing. Further, the folded shape is not limited to a roll shape, and may be folded in an accordion shape or a combination of both.

  Further, the mounting structure of the present invention may guide deployment of an airbag that protects only the head of an occupant seated on the front seat when applied to a two-seater automobile.

  Although the attachment structure of the present invention is a structure attached to an automobile, it can also be an attachment structure to a vehicle such as an aircraft or a ship other than the automobile, and the same effect is exhibited.

3 Inner panel 4 Pillar trim 5 Roof head lining 13 Airbag 14 Deployment assisting member 14a Guide wall portion 14aa Surface facing the pillar trim 14ab Deployment direction regulating portion 14b Reinforcing rib 14c Protector portion 14d Extension portion

Claims (6)

Constructs a roof side rail for a deployment auxiliary member that guides the airbag being deployed to the cabin when the airbag stored on the side opposite to the cabin of the roof head lining that covers the roof side rail of the vehicle is deployed Mounting structure to the inner panel
The deployment assisting member includes a guide wall portion that guides the airbag to the passenger compartment and a reinforcing rib, and at least when the airbag is deployed, the deployment assisting member is attached so that the reinforcing rib contacts the inner panel. A structure for attaching a curtain airbag deployment assisting member to a vehicle.   2. The curtain airbag deployment assisting member according to claim 1, wherein the deployment assisting member is attached so that a portion of the guide wall portion facing the pillar trim contacts the pillar trim when the airbag is deployed. Mounting structure for vehicles.   Extending the guide wall portion of the deployment assisting member so as to have an S-shaped cross section, and providing a reinforcing rib on the wall surface side of the extended portion opposite to the installation surface of the reinforcing rib provided on the guide wall portion. The structure for attaching a curtain airbag deployment assisting member according to claim 1, wherein the curtain airbag deployment assisting member is attached to a vehicle.   The deployment assisting member has a deployment direction restricting portion at least on a lower surface of the airbag, and the deployment direction restricting portion allows the airbag to be located near the intersection of the extending direction of the deployment direction restricting portion and the roof head lining. The curtain airbag deployment auxiliary member mounting structure according to any one of claims 1 to 3, wherein the curtain airbag deployment auxiliary member is deployed toward an upper surface of a tip of the roof head lining.   The curtain airbag deployment auxiliary member mounting structure according to claim 4, wherein the airbag is not in contact with the roof head lining in the mounted state.   The protector part which blocks | prevents the expansion | deployment to the anti-vehicle compartment side of the said airbag is attached to the position facing the said guide wall part of the said expansion | deployment auxiliary member, The Claim 1 characterized by the above-mentioned. Mounting structure for curtain airbag deployment assisting member.

Images