JP4075921B2 - Airbag device for vehicle - Google Patents

Description

  The present invention relates to a vehicle airbag device that deploys an airbag through an opening formed in a vehicle body plate such as an engine hood.

Patent Document 1 below discloses a structure in which an airbag is deployed on the upper surface side of an engine hood to protect a collision object at the time of collision. In this structure, an opening for airbag deployment is formed in an engine hood that covers the upper part of the engine room at the front of the vehicle body, and the opening is covered with a lid so as to be opened and closed.
Japanese Patent Application Laid-Open No. 8-11662

  However, in the structure of Patent Document 1, the support arm that supports the hinge portion of the lid is formed to protrude horizontally from the reinforcing member on the rear side of the vehicle body toward the front of the vehicle body, and the support arm is easily deformed in the vertical direction of the vehicle body. It has become. As a result, when the airbag is inflated and deployed, if the vertical wall portion of the airbag case moves rearward of the vehicle body due to the inflation pressure of the airbag and interferes with the support arm, the support arm is deformed and the airbag is deformed. Deformation of the vertical wall of the case cannot be suppressed. As a result, the airbag is difficult to expand upward along the vertical wall portion of the airbag case.

  In view of the above fact, an object of the present invention is to provide a vehicle airbag device that can suppress deformation of the airbag case when the airbag is deployed.

According to a first aspect of the present invention, there is provided a vehicular airbag apparatus that accommodates an airbag that is deployed through an opening formed in a vehicle body plate member, a lid that closes the opening, and the folded airbag. And an airbag case formed with an airbag deployment opening from which the airbag pops out, and an attachment portion provided on one peripheral edge along the longitudinal direction of the lid, and attaching the lid to the vehicle body side An attachment means, a hinge portion formed in the attachment means and deformed to open the lid body from the closed position in the opening direction, thereby forming the airbag through the opening, and formed in the attachment means. An airbag case support portion that contacts the airbag deployment opening side end portion of the airbag case during deployment of the airbag case and suppresses deformation of the airbag case, and The airbag case support portion is integrally formed between the hinge portion and the attachment portion, and comes into contact with the airbag deployment opening side end portion of the airbag case, the contact portion, and the hinge portion. A first support part connected to the contact part and supporting the contact part, and a second support part connected to the contact part and the attachment part to support the contact part. And the peripheral portion of the opening in the vehicle body plate material is disposed in the vicinity of the contact portion in the airbag case support portion, and the peripheral portion hits the contact portion when the airbag is deployed. The deformation of the airbag case is suppressed .

When the airbag is inflated in the airbag case, the airbag deployment opening side end of the airbag case spreads to the outer peripheral side. For this reason, the airbag case opening side end portion of the airbag case hits the airbag case support portion formed in the attaching means provided on one peripheral portion along the longitudinal direction of the lid body. Suppress deformation. At this time, the airbag case support portion corresponding to the airbag deployment opening side end portion of the airbag case is integrally formed between the hinge portion and the attachment portion of the attachment means, and is connected to the contact portion and the hinge portion. The first support part and the second support part connected to the contact part and the attachment part are provided, and the side cross-sectional shape is substantially U-shaped, and the first support part and the second support part , Support the contact portion. In addition, if the airbag deployment support pressure is large and the airbag case support portion is deformed, the peripheral edge portion of the opening in the vehicle body plate material arranged in the vicinity of the contact portion of the airbag case support portion is It hits the contact part in the airbag case support part.

  According to a second aspect of the present invention, in the vehicle airbag device according to the first aspect, the airbag case includes an inflator that blows gas from the gas outlet to the airbag. The airbag case support portion is disposed on the extended line in the gas blowing direction via the airbag case.

  When the airbag is deployed, the airbag case support portion is disposed through the airbag case on the extension line in the gas blowing direction where the deployment force of the airbag is strongest due to the gas pressure of the gas blown out from the gas outlet of the inflator. Has been placed. For this reason, the airbag case support portion hits a portion where the airbag case is most easily deformed by the deployment force of the airbag.

According to a third aspect of the present invention, in the vehicle airbag device according to the first or second aspect , the vehicle body plate material is an outer panel, and the inner panel and the outer panel disposed on the inner side of the outer panel. A bracket is attached to an inner reinforcement attached to the bracket, and the attachment means is connected to the bracket.

The load acting on the airbag case support portion may be distributed to the outer panel of the vehicle body plate member whose attachment means is connected via the bracket and the inner reinforcement, and the inner panel arranged inside the outer panel of the outer panel. it can.
According to a fourth aspect of the present invention, in the vehicle airbag device according to any one of the first to third aspects, the vehicle body plate member is provided at a front end portion of a shelf portion formed at a peripheral edge portion of the opening portion in the vehicle body plate material. A deformation of the airbag case is suppressed by supporting the contact portion with a flange hitting the contact portion.
In the event that the inflation and deployment pressure of the airbag is large and the airbag case support portion is deformed, the airbag case support portion is formed at the peripheral portion of the opening portion of the vehicle body plate material disposed in the vicinity of the contact portion of the airbag case support portion. The flange provided at the tip of the shelf abuts against the contact portion of the airbag case support portion and supports the contact portion, thereby suppressing deformation of the airbag case.

  The present invention according to claim 1 can suppress deformation of the airbag case when the airbag is deployed.

  The present invention according to claim 2 can suppress deformation of the most easily deformable portion of the airbag case.

According to the third aspect of the present invention, deformation of the airbag case is effectively suppressed by the airbag case support portion.
According to the fourth aspect of the present invention, deformation of the airbag case can be suppressed even when the inflation and deployment pressure of the airbag is large.

  An embodiment of a vehicle airbag device according to the present invention will be described with reference to FIGS.

  In the figure, the arrow UP indicates the vehicle body upward direction, and the arrow FR in the figure indicates the vehicle body front direction.

  As shown in FIG. 4, an engine hood outer panel 12 (hereinafter referred to as a hood) made of a metal plate, which is a vehicle body plate (vehicle body outer plate) that forms the outer periphery of the vehicle body 10, is formed on the front upper surface of the vehicle body 10 of the automobile in the present embodiment. An outer panel). Further, an airbag deployment opening 14 as an opening is formed in the vicinity of the front side of the rear edge 12 </ b> A of the hood outer panel 12.

  The airbag deployment opening 14 is formed with its longitudinal direction along the vehicle width direction, and the shape of the airbag deployment opening 14 seen from above the vehicle body is a rear edge 12A of the hood outer panel 12. A long circular arc shape extending in the vehicle width direction along the vehicle width direction and bulging forward in the vehicle body.

  As shown in FIG. 3, a ledge 16 recessed downward in the vehicle body is continuously formed in the circumferential direction at the peripheral portion of the airbag deployment opening 14 in the hood outer panel 12 with the hood closed. Yes. The shelf 16 is formed by press working or the like, and has a vertical wall 16A bent downward from the base 12B that forms the design surface (front surface) of the hood outer panel 12, and air from the lower end of the vertical wall 16A. The lateral plate portion 16B is bent at a right angle toward the inside of the bag opening 14 and a flange 16C is bent from the inner end of the lateral plate portion 16B toward the vehicle body downward. Further, the flange 16 </ b> C is a peripheral portion of the airbag deployment opening 14 in the hood outer panel 12.

  As shown in FIG. 4, a cover 20 as a lid is attached to the airbag deployment opening 14 of the hood outer panel 12. A plan view shape of the cover 20 viewed from above the vehicle body is an elongated arc shape extending along the rear end edge 12A of the hood outer panel 12 and having a central portion in the vehicle width direction swelled forward of the vehicle body. As a result, the entire area of the airbag deployment opening 14 is closed.

  As shown in FIG. 3, the cover 20 is set to have substantially the same thickness as that of the hood outer panel 12 and is formed of a metal plate. From the peripheral part of the base 20A that forms the design surface (front surface) of the cover 20, a vertical wall 20B that is bent toward the lower side of the vehicle body is formed with the hood closed, from the lower end of the vertical wall 20B. A lower plate portion 20 </ b> C bent at a right angle toward the inside of the airbag deployment opening 14 is formed. Further, a recess 20D is formed in the lower peripheral portion of the cover 20 by the peripheral portion of the base portion 20A, the vertical wall 20B, and the lower plate portion 20C, and the lower plate portion 20C of the cover 20 is used for deploying the airbag of the hood outer panel 12 It is placed on the horizontal plate portion 16B of the shelf portion 16 formed in the opening portion.

  As shown in FIG. 4, in the vicinity of both ends in the vehicle width direction and in the center in the vehicle width direction at the rear edge of the vehicle body, which is one peripheral portion along the longitudinal direction of the cover 20, a belt-like portion 24 as attachment means is provided. Are integrally formed.

  As shown in FIG. 7, the upper end of the belt-like portion 24 is a hinge portion 25, and when the bent plate-like hinge portion 25 is deformed, the cover 20 is moved from the closed position shown by the solid line in FIG. As indicated by a two-dot chain line, the opening is made in the opening direction (arrow B).

  A pair of left and right slits 27 are formed between the vertical wall 20 </ b> B and the lower plate portion 20 </ b> C of the cover 20 and the belt-like portion 24, and the belt-like portion 24 and the cover 20 are formed by the pair of left and right slits 27. The hinge portion 25 is easily deformed by separating the vertical wall 20B and the lower plate portion 20C from each other.

  As shown in FIG. 1, the lower portion of the belt-like portion 24 is an attachment portion 31. The attachment portion 31 has a flat plate shape extending from the upper front side of the vehicle body toward the lower rear side of the vehicle body, and the attachment portion 31 is fixed to the hood 34 by a bracket 32. Further, a through hole 36 is formed in the attachment portion 31, and a through hole 38 is formed in the cover attachment portion 32 </ b> A of the bracket 32 that overlaps the attachment portion 31. Bolts 40 are inserted into the through holes 36 and 38 from the front side of the vehicle body, and the bolts 40 are screwed into nuts 42 arranged on the rear surface of the cover attachment portion 32A of the bracket 32.

  As shown in FIG. 7, an airbag case support portion 26 is integrally formed between the hinge portion 25 and the attachment portion 31 in the belt-like portion 24.

  As shown in FIG. 1, the side cross-sectional shape of the airbag case support portion 26 (a shape of a vertical cross section along the vehicle body longitudinal direction seen from the vehicle width direction) protrudes toward the front of the vehicle body and opens on the vehicle rear side. It has a rectangular frame shape (substantially U-shaped) and supports a contact wall portion 26A as a contact portion extending in the vertical direction of the vehicle body, and an upper end portion and a lower end portion of the contact wall portion 26A from the rear side of the vehicle body. The first support portion wall portion 26B as the first support portion and the second support wall portion 26C as the second support portion are provided. The first support wall portion 26B and the second support wall portion 26C are disposed substantially horizontally along the vehicle body front-rear direction.

  As shown in FIG. 7, a vertical wall portion 26 </ b> D is formed at the rear end of the first support wall portion 26 </ b> B toward the upper side of the vehicle body, and the upper end of the vertical wall portion 26 </ b> D is a hinge portion 25. On the other hand, the attachment portion 31 is connected to the rear end of the second support wall portion 26C.

  As shown in FIG. 2, when the airbag is deployed, the airbag 73 is deployed from the airbag deployment opening of the airbag case 70 toward the rear of the vehicle body by the gas blown from the gas blowout port 75 of the inflator 72.

  Note that the airbag case 70 for storing the folded airbag has an airbag deployment opening at the upper end where the airbag pops out, and the bottom surface, both the vehicle front-rear direction side surfaces and the vehicle width direction side surfaces are integrally connected. It is made into a box shape.

  Therefore, when the airbag is deployed, the upper portion 70A of the rear wall as the airbag deployment opening side end portion of the airbag case 70 is strongly pressed toward the rear of the vehicle body (in the direction of arrow A in FIG. 2) by the airbag 73. Trying to deform greatly to the rear side of the car body. On the other hand, in the present embodiment, the abutting wall portion 26A of the airbag case support portion 26 disposed in the vicinity of the rear side of the upper portion 70A of the rear wall portion of the airbag case 70 is the rear of the airbag case 70. The upper portion 70A of the wall portion is hit from the rear side of the vehicle body, and deformation of the upper portion 70A of the rear wall portion in the airbag case 70 toward the rear of the vehicle body is suppressed.

  Further, in the present embodiment, a shelf portion 16 as a peripheral portion of the airbag deployment opening 14 in the hood outer panel 12 is disposed in the vicinity of the rear side of the vehicle body of the contact wall portion 26A of the airbag case support portion 26. A flange 16C bent downward is formed at the tip. Therefore, if the inflation and deployment pressure of the airbag 73 is large and the contact wall portion 26A of the airbag case support portion 26 is deformed rearward of the vehicle body, the flange 16C in the shelf portion 16 of the hood outer panel 12 The abutting wall portion 26A of the bag case support portion 26 is hit from the rear side of the vehicle body and supports the airbag case support portion 26.

  As shown in FIG. 4, a plurality of clips 28 are attached to the front body edge of the cover 20 at a predetermined interval along the vehicle width direction.

  As shown in FIG. 1, the clip mounting portion 20M of the cover 20 is a bent belt-like plate portion, and is integrally formed at the distal end portion of the lower plate portion 20C. Further, the tip end portion 20N of the clip attachment portion 20M is bent downward, and the tip end portion 20N of the clip attachment portion 20M has a side view shape made of metal (a shape of a vertical cross section along the vehicle body longitudinal direction). A substantially V-shaped clip 28 (see FIG. 6) is fixed by a rivet 30 at its proximal end 28A.

  As shown in FIG. 6, the clip 28 is formed by bending a strip-shaped leaf spring. The front end portion 28B of the clip 28 is bent in a bowl shape in a side view shape (a vertical cross-sectional shape along the longitudinal direction of the vehicle body), and as shown in FIG. 1, is attached to the flange 16C of the shelf portion 16 of the hood outer panel 12. Locked in an elastically deformed state. Accordingly, the cover 20 is attached to the airbag deployment opening 14 of the hood outer panel 12.

  As shown in FIG. 6, a bent portion 28 </ b> C is formed on the lower side of the tip 28 </ b> B of the clip 28. Yes. As shown in FIG. 1, the bent portion 28C is in contact with the lower end of the flange 16C, and the bent portion 28C of the clip 28 and the lower plate portion 20C of the cover 20 sandwich the flange 16C of the shelf portion 16 from above and below. .

  Note that reference numeral 29 in FIG. 6 is a through hole for fixing a rivet formed on the base end portion 28 </ b> A of the clip 28.

  1 and 4 do not show the clip 28 on the rear end side of the cover 20, but the clip is positioned at an appropriate position along the vehicle width direction (longitudinal direction of the cover 20) on the rear end side of the cover 20. 28 is set similarly to the front end side of the cover 20.

  The front end portion 28B of the clip 28 attached to the front side of the vehicle body in the cover 20 is elastically deformed, and a reaction force of elastic deformation toward the front side of the vehicle body (in the direction of arrow C in FIG. 1) is generated on the flange 16C of the shelf portion 16. The front end portion 28B of the clip 28 attached to the rear side of the vehicle body in the cover 20 (not shown) is elastically deformed, and the flange 16C of the shelf portion 16 is elastic to the rear side of the vehicle body (in the direction of arrow D in FIG. 1). A deformation reaction force is generated. As a result, the cover 20 is fixed to the airbag opening 14 of the hood outer panel 12 by the reaction force of both elastic deformations.

  On the other hand, when the airbag is deployed, the cover 20 is pressed toward the vehicle body upward by the airbag, so that the engagement of the clip 28 with the airbag deployment opening 14 is released, and the hinge portion 25 of the cover 20 is released. By the deformation, the cover 20 opens upward as shown by a two-dot chain line in FIG. 3, and the airbag 73 is inflated and deployed above the hood 34 and the left and right front pillars 35 as shown in FIG. ing.

  As shown in FIG. 1, the airbag device 52 is fixed to the upper surface of the center portion 54 </ b> A in the front-rear direction of the mounting bracket 54 that is dish-shaped, and both end portions 54 </ b> B in the front-rear direction of the mounting bracket 54 are formed on the hood inner panel 56. The fastening member 60 such as a bolt and nut is fixed to the lower surface of the peripheral portion 56A of the opening 58 formed. Further, the peripheral edge portion 56A of the opening 58 in the hood inner panel 56 is reinforced by an inner reinforcement 62, and the inner reinforcement 62 is arranged with its longitudinal direction along the vehicle width direction. The cross-sectional shape of the inner reinforcement 62 viewed from the vehicle width direction is a hat shape with the opening portion facing upward, and the opening portion 64 for inserting the airbag device 52 is formed in the lower plate portion 62A. Is formed. A bracket 54 of the airbag device 52 is fastened together with a fastening member 60 at a peripheral edge portion of the opening 64 in the lower plate portion 62 </ b> A of the inner reinforcement 62. The flange 62B formed at the upper end of the inner reinforcement 62 is fixed to the lower surface 12C of the base 12B of the hood outer panel 12 with an adhesive 68. Further, the mounting flange 32B of the bracket 32 is welded to the front surface of the vertical wall portion 62C on the rear side of the vertical wall portions 62C and 62D connecting the lower plate portion 62A of the inner reinforcement 62 and the flange 62B. Are bound by.

  Accordingly, the attachment portion 31 of the belt-like portion 24 is connected to the hood outer panel 12 and the hood inner panel 56 of the hood 34 via the bracket 32 and the inner reinforcement 62.

  In addition, a substantially cylindrical inflator 72 is accommodated in the airbag case 70 with the hood width direction (vehicle width direction) as an axial direction, and a folded airbag 73 is accommodated. In the inflator 72, for example, a squib, an ignition agent, a transfer agent, a gas generating agent, a coolant, a filter, and the like are accommodated.

  A plurality of gas outlets 75 for blowing out gas are formed in the peripheral wall portion 72A of the inflator 72, and an extension line in the gas blowing direction (direction of arrow F in FIG. 2) of some of the gas outlets 75 is formed. An airbag case support portion 26 is disposed above the rear side of the vehicle body with respect to the gas outlet port 75, via a rear wall portion of the airbag case 70.

  For example, the airbag case support portion 26 is disposed at the rear side of the vehicle body at the same position in the vehicle width direction as the gas outlet port 75, and the gas outlet port 75 is located in front of the airbag case support portion 26 on the front side of the vehicle body. Is formed.

  Therefore, of the portions along the vehicle width direction in the upper portion 70A of the rear wall portion of the airbag case 70, the portion that is most deformed by the pressure of the gas blown out from the gas blowout port 75 of the inflator 72 is supported by the airbag case. The portion 26 can be supported.

  On the outer peripheral portion 72A of the inflator 72, mounting bolts 76 as fasteners are erected at a plurality of axial locations (for example, two locations) so that the radial direction of the inflator 72 is the axial direction. Correspondingly, bolt insertion holes 78 and 80 through which the mounting bolts 76 are inserted are also formed in the bottom wall portion 70 </ b> C of the airbag case 70 and the mounting bracket 54. The inflator 72 is firmly attached to the mounting bracket 54 by inserting the mounting bolt 76 into the bolt insertion holes 78 and 80 while being supported by the mounting bracket 82, and tightening the nut 84 as a fastening means from the lower surface side of the mounting bracket 54. It is fixed to. The airbag 73 is housed in the airbag case 70 in a folded state around the inflator 72 so that the gas blown out from the gas outlet of the inflator 72 described above is introduced.

  Next, the operation of this embodiment will be described.

  In the present embodiment, the inner reinforcement 62 is fixed to the hood outer panel 12 in advance via an adhesive 68, and the cover 20 is placed on the airbag deployment opening 14 of the hood outer panel 12, and the opening 58, After the cover 20 is attached to the bracket 32 by fastening the bolt 40 and the nut 42 from below through the opening 64, the airbag device 52 is attached to the hood inner panel 56 together with the attachment bracket 54 from below the hood 34 by the fastening member 60.

  Next, when the airbag device 52 is activated at the time of a vehicle collision and the airbag 73 is deployed, the cover 20 is pressed upward by the airbag 73. For this reason, the clip 28 fixing the cover 20 to the airbag deployment opening 14 of the hood outer panel 12 is disengaged, and the cover 20 has the hinge portion 25 of the belt-like portion 24 provided on the rear edge of the vehicle body. The airbag 73 is rotated to the center and released, and the airbag 73 is deployed from the airbag deployment opening 14 to the outside of the vehicle body.

  At this time, as shown in FIG. 2, the upper portion 70 </ b> A of the rear wall portion of the airbag case 70 is pressed rearward (in the direction of arrow A) by the inflating airbag 73 and tends to be largely deformed rearwardly. The upper portion 70A of the rear wall portion of the airbag case 70 contacts the airbag case support portion 26 of the belt-like portion 24 disposed in the vicinity of the rear side of the vehicle body, and deformation to the rear side of the vehicle body is suppressed.

  That is, the airbag case support portion 26 receives a load from the upper portion 70A of the rear wall portion of the airbag case 70 at the contact wall portion 26A, and this load is received by the first support wall portion 26B and the second support wall portion 26C. And the load is distributed to the hood outer panel 12 and the hood inner panel 56 of the hood 34 via the bracket 32 and the inner reinforcement 62.

  As a result, it is possible to prevent the upper portion 70A of the rear wall portion of the airbag case 70 from being greatly deformed toward the rear side of the vehicle body, and to reliably deploy the airbag 73 toward the upper side of the vehicle body. Therefore, it is possible to prevent the airbag 73 from sinking into the lower surface 12C side of the hood outer panel 12, inflating on the lower surface 12C side of the hood outer panel 12, and lifting the hood outer panel 12.

  Further, in the present embodiment, the rear side of the airbag case 70 is disposed above the rear side of the vehicle body of the gas outlet 75 that is on the extended line in the gas outlet direction of the gas outlet 75 formed in the peripheral wall portion 72A of the inflator 72. The airbag case support 26 is disposed. As a result, among the portions along the vehicle width direction in the upper portion 70A of the rear wall portion of the airbag case 70, the portion where the deformation is greatest due to the pressure of the gas blown out from the gas blowing port 75 of the inflator 72 is defined as the airbag case. It can be supported by the support portion 26. For this reason, deformation of the airbag case 70 can be effectively suppressed.

  Further, in the present embodiment, a flange 16C in the shelf portion 16 as a peripheral portion of the airbag deployment opening 14 in the hood outer panel 12 is disposed in the vicinity of the vehicle body rear side of the contact wall portion 26A of the airbag case support portion 26. Has been. As a result, if the inflation and deployment pressure of the airbag 73 is large and the contact wall portion 26A of the airbag case support portion 26 is deformed rearward of the vehicle body, the flange 16C in the shelf portion 16 of the hood outer panel 12 is Abutting against and supporting the abutting wall portion 26A of the airbag case support portion 26. For this reason, even when the inflation and deployment pressure of the airbag 73 is large, the deformation of the airbag case 70 can be suppressed.

  Although the present invention has been described in detail with respect to specific embodiments, the present invention is not limited to such embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art.

  For example, in the above-described embodiment, a pair of left and right slits 27 are formed between the vertical wall 20B and the lower plate portion 20C of the cover 20 and the belt-like portion 24, and the vertical wall 20B and the lower plate portion of the belt-like portion 24 and the cover 20 are formed. Although the hinge portion 25 is easily deformed by separating it from 20C, a configuration in which the pair of left and right slits 27 are not formed may be employed.

  Moreover, in the said embodiment, the planar view shape seen from the vehicle body upper direction of the airbag deployment opening part 14 and the cover 20 was made into the circular arc shape extended along the rear-end edge part 12A of the hood outer panel 12, and swelled ahead of the vehicle body. However, the planar view shape of the airbag deployment opening 14 and the cover 20 as viewed from above the vehicle body is not limited to an arc shape, and the planar view shape of the airbag deployment opening 14 and the cover 20 as viewed from above the vehicle body is a straight line. Other shapes such as a shape and a V shape may be used.

  In the above embodiment, the hood outer panel 12, the cover 20, and the clip 28 are made of metal, but the hood outer panel 12, the cover 20, and the clip 28 are not limited to metal, and may be made of other materials such as resin. . Further, the material of the hood outer panel 12 and the material of the cover 20 may not be the same material.

  In the above embodiment, the vehicle plate material is the hood outer panel 12, but the vehicle plate material may be another vehicle plate material such as a roof panel.

FIG. 5 is an enlarged cross-sectional view taken along line 1-1 of FIG. FIG. 3 is an operation explanatory diagram corresponding to FIG. 1 of the vehicle airbag device according to the embodiment of the present invention. It is an expanded sectional view along line 3-3 in FIG. 1 is a perspective view of a vehicle body to which a vehicle airbag device according to an embodiment of the present invention is applied, viewed from an obliquely forward direction of the vehicle body. It is the perspective view seen from the vehicle body diagonal front which shows the airbag deployment state of the vehicle body to which the vehicle airbag apparatus which concerns on one Embodiment of this invention was applied. It is the perspective view seen from the vehicle body diagonally front which shows the clip of the airbag apparatus for vehicles concerning one embodiment of the present invention. It is the perspective view seen from the vehicle body diagonal front which shows the strip | belt-shaped part of the airbag apparatus for vehicles which concerns on one Embodiment of this invention.

Explanation of symbols

12 Hood outer panel (body plate material, outer panel)
14 Airbag deployment opening (opening)
16 Shelves of hood outer panel 16C Flange of shelves (periphery of opening of body plate material)
20 Cover (lid)
24 Band-shaped part (mounting means)
25 Hinge part of belt-like part 26 Airbag case support part of belt-like part 26A Contact wall part (contact part) of airbag case support part
26B 1st support wall part (1st support part) of an airbag case support part
26C 2nd support wall part (2nd support part) of airbag case support part
27 Slit 31 Attaching part of belt-like part 32 Bracket 52 Airbag device 56 Hood inner panel (inner panel)
62 Inner reinforcement 70 Airbag case 70A Upper part of rear wall portion of air bag case (opening side end portion for air bag deployment)
72 Inflator 73 Airbag 75 Inflator gas outlet

Claims (4)

An airbag that deploys through an opening formed in the vehicle body plate material;
A lid for closing the opening;
An airbag case in which an airbag deployment opening is formed in which the airbag in a folded state is stored and the airbag pops out;
An attachment means provided on one peripheral edge along the longitudinal direction of the lid, and having an attachment portion for attaching the lid to the vehicle body;
A hinge part for opening the lid through the opening by opening the lid from the closed position in the opening direction by deformation formed in the attachment means;
An airbag case support portion that is formed in the attachment means and that contacts the airbag deployment opening side end portion of the airbag case during deployment of the airbag to suppress deformation of the airbag case;
The airbag case support portion is integrally formed between the hinge portion and the attachment portion, and contacts the airbag deployment opening side end portion of the airbag case; and the contact portion And a first support part connected to the hinge part to support the contact part, and a second support part connected to the contact part and the attachment part to support the contact part. The shape is substantially U-shaped, and the peripheral edge portion of the opening in the vehicle body plate material is disposed in the vicinity of the abutting portion in the airbag case support portion, and the peripheral edge portion is located when the airbag is deployed. A vehicle airbag device characterized by suppressing deformation of the airbag case upon contact with a contact portion .   The airbag case includes an inflator that blows gas from a gas outlet to the airbag, and the airbag case support portion is disposed on the extended line in the gas outlet direction of the gas outlet via the airbag case The vehicle airbag device according to claim 1, wherein the vehicle airbag device is provided. The vehicle body plate material is an outer panel, and a bracket is attached to an inner panel disposed on the inner panel of the outer panel and an inner panel attached to the outer panel, and the attachment means is connected to the bracket. The vehicle airbag device according to claim 1 or 2 . A flange provided at a front end of a shelf formed at a peripheral edge of the opening in the vehicle body plate material abuts against the contact portion and supports the contact portion, thereby suppressing deformation of the airbag case. The vehicle airbag device according to any one of claims 1 to 3 .

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