JP4837578B2 - Arrangement structure of airbag device - Google Patents

Description

  The present invention relates to an arrangement structure of an airbag device that is arranged along the vicinity of an opening of a vehicle and can be deployed in a vehicle interior.

As a technique related to the arrangement structure of an airbag device that is arranged along the vicinity of an opening of a vehicle and can be deployed in a vehicle interior, an impact absorbing member is fixed on the vehicle body side, and the airbag device is provided on the vehicle interior side. And there exists a structure which covers these with roof lining (for example, refer patent document 1).
JP 2002-225658 A

  As described above, if the airbag device is covered with roof lining, the airbag device must be deployed while deforming the roof lining at the time of deployment, and smooth deployment may not be possible. For this reason, a trim member different from the roof lining is provided so as to be easily rotated, and the airbag device is covered with the trim member so that the airbag device can be smoothly deployed. However, when such a structure is adopted, there is a possibility that the fitting portion between the roof lining and the trim member may be misaligned and look bad.

  Therefore, the present invention provides an arrangement structure of an airbag device that can improve the appearance of the mating portion between the roof lining and the trim member when the airbag device is covered with a trim member different from the roof lining. Objective.

In order to achieve the above object, the invention according to claim 1 is disposed along the opening in the vicinity of the opening (for example, the door opening 14 in the embodiment) of the vehicle (for example, the vehicle 10 in the embodiment). An arrangement of an airbag device (for example, the airbag device 20 in the embodiment) that can be deployed in a passenger compartment, and a vehicle having a roof panel (for example, the roof panel 25 in the embodiment) of a vehicle body (for example, the vehicle body 11 in the embodiment). A roof lining (for example, roof lining 22 in the embodiment) disposed on the indoor side, and a trim member (for example, trim member 23 in the embodiment) that covers the vehicle body together with the roof lining, the airbag device using the trim member. while covering, the impact absorbing portion between the roof lining and the roof panel (e.g., exemplary type Engaging portion shock absorbing member having a shock absorbing unit 75) (the impact-absorbing member 72 in the example embodiment) is engaged with the trim member is eclipsed set between the roof lining and the trim member in (e.g. Engaging portion 76) in the embodiment, and the engaging portion is a lower portion of a vertical rib (for example, the vertical rib 74 in the embodiment) formed in the shock absorbing portion along the outside of the vehicle interior and along the vertical direction. It is characterized by extending from the position .

The invention according to claim 2 is characterized in that, in the invention according to claim 1 , the engagement portion is maintained in an engaged state with the trim member in a state of being deformed by a predetermined amount.

The invention according to claim 3 is characterized in that, in the invention according to claim 1 or 2 , the shock absorbing member is integrally fixed on the roof lining.

The invention according to claim 4 is the invention according to any one of claims 1 to 3 , wherein the outside terminal of the roof lining is folded back to the back side of the design surface, and the outside terminal is attached to the shock absorbing member. A support portion (for example, the mounting plate portion 81 in the embodiment) that supports from the inside is provided.

The invention according to claim 5 is the invention according to claim 4 , wherein the support surface of the support portion (for example, the support surface 81a in the embodiment) is formed in a direction substantially orthogonal to the extending direction of the engagement portion. It is characterized by being.

The invention according to claim 6 is the invention according to any one of claims 1 to 5 , wherein the impact absorbing member includes the side of the engaging portion of the impact absorbing portion and the roof lining of the engaging portion. Is provided on the opposite side with a backing portion (for example, the backing plate portion 88 in the embodiment ) that can contact an attachment plate portion (for example, the attachment plate portion 47 in the embodiment) that engages with the engaging portion of the trim member. It is characterized by providing.

  According to the first aspect of the present invention, since the shock absorbing member is provided between the roof lining disposed on the vehicle interior side of the roof panel of the vehicle body and the trim member that covers the airbag device, The roof lining and the trim member can be aligned by the absorbing member. Therefore, the appearance of the joint portion between the roof lining and the trim member can be improved. In addition, since the impact absorbing member is provided between the roof lining and the trim member, it is possible to suppress the occurrence of squeal generated by friction between the roof lining and the trim member.

Moreover , since the engaging part which engages a trim member with an impact-absorbing member is provided, the separation | spacing from the roof lining of a trim member is suppressed, and the clearance gap between the mating parts of a trim member and a roof lining is maintained in a small state. be able to.

Moreover , since the engaging part is extended from the position of the rib formed in the impact-absorbing member, the root rigidity of the engaging part can be enhanced by the rib.

According to the second aspect of the present invention, since the engagement portion is maintained in the engagement state with the trim member in a state where the engagement portion is deformed by a predetermined amount, the trim member can be pressed against the roof lining by the urging force of the engagement portion. it can. Therefore, a gap generated between the trim member and the roof lining can be eliminated, and the appearance is further improved.

According to the third aspect of the present invention, since the impact absorbing member is integrally fixed on the roof lining, the assembly and alignment of the roof lining and the impact absorbing member are facilitated.

According to the invention of claim 4 , since it is formed of a relatively soft material, it is likely to cause dimensional variation during assembly by being deformed to the vehicle interior side or vehicle interior side, and there is a gap between the trim member and the trim member. By restraining deformation of the roof lining terminal, which is likely to occur, by using a relatively hard impact absorbing member support portion, the positioning performance of the terminal portion can be improved and the appearance quality can be kept good.

According to the invention which concerns on Claim 5 , since the support surface of a support part is formed in the direction substantially orthogonal to an engaging part, the vehicle outer side terminal of the roof lining arranged close to an engaging part is positioned. Therefore, the dimensional variation can be greatly reduced, and the alignment accuracy of the outside terminal of the roof lining can be improved.

According to the sixth aspect of the present invention, since the backing portion capable of contacting the vehicle body side support portion engaged with the engagement portion is provided on the engagement portion side of the shock absorbing member, the movement of the roof lining is further restricted. It is possible to prevent a step from occurring on the design surface.

  An arrangement structure of an airbag device according to an embodiment of the present invention will be described below with reference to the drawings. In the following description, for the sake of convenience of description, the description will be made using the direction of the state of being attached to the vehicle.

  FIG. 1 is a perspective view of the vehicle 10 as viewed obliquely from the right rear. The vehicle 10 has door openings (openings) 14 that are opened and closed by side doors 13 on both sides of the roof 12 of the vehicle body 11. A pair of left and right roof side rails 15 constituting the upper edge of the vehicle are provided so as to extend in the vehicle front-rear direction along the door opening 14, and the vehicle interior side of the roof side rail 15 near the door opening 14 is provided. In addition, long airbags 16 that are deployed in a curtain shape in the vehicle compartment are arranged along the vehicle longitudinal direction.

  An inflator 17 that generates gas and inflates and deploys the airbag 16 is provided at the rear portion of each airbag 16 in the vehicle front-rear direction. The airbag device 20 includes the airbag 16 and the inflator 17. Yes.

  2 is a view of the position of the right roof side rail 15 shown in FIG. 1 as viewed from the vehicle interior side. The roof side rail 15 shown in FIG. 1 includes the terminal portion of the roof lining 22 shown in FIG. 22 and a trim member 23 different from 22.

  FIG. 3 is a cross-sectional view taken along the line AA of FIG. The side of the roof 12 of the vehicle body 11 has a metal roof panel 25 and a roof side rail 15 having a metal closed cross-section structure joined to the roof panel 25. An airbag module 28 including the airbag device 20 described above is attached to the inner panel 26 on the vehicle interior side.

  The airbag module 28 includes a metal bracket 30, a synthetic resin base member 31 that is disposed on the bracket 30 side and assembled to the bracket 30, and is disposed on the opposite side of the base member 31 from the bracket 30. 30. (Assembly structure is not shown) Assist grip 33 mainly composed of synthetic resin assembled by clip portion 32 so as to sandwich base member 31 between air bag device 20 and bracket 30 described above, and air bag The above-described trim member 23 made of a synthetic resin is disposed on the side opposite to the bracket 30 of the bag device 20 and is assembled to the bracket 30 via a plurality of metal hinge members 34 shown in FIG. . Here, the trim member 23 is fixed to the vehicle interior side of the hinge member 34 with a rivet (not shown), and the vehicle exterior side of the hinge member 34 is fixed to the bracket 30 with a bolt 35 and a weld nut 36. In addition, the trim member 23 and the base member 31 form a substantially cylindrical shape in a state of being attached to the bracket 30, and the airbag device 20 is housed inside the trim member 23. As a result, the trim member 23 becomes the airbag device. 20 is coated.

  In such an airbag module 28, as shown in FIG. 5, a bolt 37 inserted through the bracket 30 is screwed into a weld nut 38 outside the passenger compartment through the inner panel 26 of the roof side rail 15. As a result, it is fixed to the inner panel 26 of the roof side rail 15.

  A rubber seal member 40 is attached to the lower edge of the roof side rail 15. The seal member 40 seals a gap between the door opening 14 on the lower side of the roof side rail 15 and the side door 13 shown in FIG.

  The roof lining 22 described above is arranged on the vehicle interior side of the roof panel 25 of the vehicle body 11, and the terminal portion of the roof lining 22 covers the mounting portion of the airbag module 28 as shown in FIG. Thus, the trim member 23 is matched. At this time, an opening 42 for exposing the assist grip 33 to the vehicle interior side is formed in the terminal portion of the roof lining 22. Here, as shown in FIG. 3, the assist grip 33 is attached to the bracket 30 via an extending portion 43 of the base member 31. The extending portion 43 covers the bracket 30 and the like and opens the roof lining 22. The part 42 is exposed to the vehicle interior side.

  As shown in FIGS. 4 and 5, the trim member 23 includes a main plate portion 45 that is curved so that the lower side is positioned outside the vehicle compartment and forms a design surface on the vehicle interior side, and an upper edge portion of the main plate portion 45. As shown in FIG. 3, it has a step plate portion 46 that protrudes outside the vehicle compartment, and a mounting plate portion (vehicle body side support portion) 47 that protrudes upward from an end portion outside the vehicle compartment of the step plate portion 46. In addition, at the position where the opening 42 of the roof lining 22 is formed, the mounting plate 47 is not formed, and the step plate 46 is directly extended to the outside of the passenger compartment and engaged with the extended portion 43 of the base member 31. is doing. That is, a claw portion 48 that protrudes upward is formed at the end of the step plate portion 46 outside the passenger compartment, and the claw portion 48 gets over the engagement hole 50 formed in the extending portion 43 so that the step plate The portion 46 is engaged with the extending portion 43. As shown in FIG. 5, a rectangular attachment hole 49 that is long in the vehicle front-rear direction is formed in the attachment plate portion 47 of the base member 31.

  The extended portion 43 is formed with the above-described engagement hole 50 and an insertion hole 51 through which the clip portion 32 of the assist grip 33 is inserted to close the opening 42, and the base plate portion 52 is curved. An upper extension plate portion 53 extending upward from the upper end portion on the vehicle interior side and an attachment plate portion 54 extending from the upper end portion of the upper extension plate portion 53 to the side opposite to the base plate portion 52 are provided. The attachment plate portion 54 is formed with a rectangular attachment hole 55 that is long in the vehicle front-rear direction. The clip portion 32 inserted into the insertion hole 51 of the base member 31 is engaged with the engagement hole 56 of the bracket 30, whereby the assist grip 33 and the base member 31 are integrated with the bracket 30. The

  The roof lining 22 has a plate-like base member 60 made of a synthetic resin and a skin 61 covering the vehicle interior side, and the vehicle outer side end of the roof lining 22 is attached to the inner peripheral edge of the opening 42 side. A folded portion 62 having a shape folded to the back surface side, that is, the outside of the vehicle compartment is formed with respect to the design surface on the vehicle interior side, and a synthetic resin engaging member 64 is bonded or bonded to the vehicle width direction inner side in the vicinity of the folded portion 62. It is fixed by welding or the like. The engaging member 64 is formed with an engaging claw 67 having a base plate portion 65 extending upward in a posture along the vehicle front-rear direction and a claw portion 66 protruding outward from the front end of the base plate portion 65 in the vehicle width direction. The engagement claw 67 engages with the attachment hole 55 of the attachment plate portion 54 of the base member 31. At the time of this engagement, the folded portion 62 contacts the upwardly extending plate portion 53 of the base member 31.

  As shown in FIG. 4 and FIG. 5, a folded portion 70 having a shape bent to the outside of the passenger compartment is also formed at the terminal portion where the opening 42 of the roof lining 22 is not formed. The folded portion 70 contacts the step plate portion 46 of the trim member 23.

  Here, as shown in FIG. 5, an impact absorbing member 72 is provided between the roof lining 22 and the roof panel 25 of the vehicle body 11 to absorb the impact in the direction in which they approach. As shown in FIG. 6, the shock absorbing member 72 has a lattice-like impact in which a plurality of vertical ribs 74 extending in the vertical direction are arranged on a pair of upper and lower horizontal ribs 73 extending in the vehicle longitudinal direction. It has an absorbing portion 75 and an engaging portion 76 extending from the position of the vertical rib 74 of the shock absorbing portion 75 on the extension of the vertical rib 74, and the engaging portion 76 is an opening of the roof lining 22. It is integrally fixed on the base member 60 of the roof lining 22 by adhesion or welding in a state where it is positioned at the terminal portion where the 42 is not formed.

  As shown in FIG. 5, the engaging portion 76 includes an extension plate portion 78 that extends outward from the impact absorbing portion 75 in the vehicle front-rear direction and the vehicle width direction, and the vehicle from the tip of the extension plate portion 78. A standing plate portion 79 that bends and extends in a vertical direction with respect to the roof lining 22 in a posture along the front-rear direction, and a roof lining that extends along the roof lining 22 in a posture along the vehicle front-rear direction from the tip of the standing plate portion 79. A support plate portion 80 that abuts against the folded portion 70 of the 22 and a contact plate portion (support portion) 81 that extends perpendicularly to the standing plate portion 79 and the support plate portion 80 and abuts against the roof lining 22. is doing. Here, the shock absorbing member 72 is joined to the roof lining 22 at the shock absorbing portion 75, the extension plate portion 78 and the contact plate portion 81, and as a result, the contact plate portion 81 is joined to the roof lining 22. The outside terminal of the vehicle is supported from inside. A support surface 81 a on the distal end side that supports the folded portion 62 of the contact plate portion 81 is formed in a direction substantially orthogonal to the extending direction of the engaging portion 76 in accordance with the folded portion 62.

  Furthermore, the engaging portion 76 has an engaging claw 84 that extends vertically from the support plate portion 80. The engaging claw 84 includes a base plate portion 85 that extends vertically from the support plate portion 80 in a posture along the vehicle longitudinal direction, and a claw portion 86 that protrudes from the front end portion of the base plate portion 85 to the side opposite to the shock absorbing portion 75. And a reinforcing plate portion 87 extending perpendicularly to the support plate portion 80 from the surface opposite to the claw portion 86 of the substrate portion 85, and the reinforcing plate portion 87 is a support plate. An inclined shape is formed such that the height from the substrate portion 85 increases toward the portion 80 side.

  In addition, the engaging portion 76 has a rib-like backing plate portion (backing portion) 88 that rises perpendicularly from the extension plate portion 78 and connects the shock absorbing portion 75 and the engaging claws 84. The backing plate portion 88 is formed on the extension of the vertical rib 74 of the shock absorbing portion 75.

  Then, the terminal portion of the roof lining 22 attaches the engaging claw 84 of the engaging portion 76 of the shock absorbing member 72 to the trim member 23 in a state in which the folded portion 70 is in contact with the step plate portion 46 of the trim member 23. Engage with the mounting hole 49 of the plate portion 47. At this time, the engaging claw 76 positions the claw portion 86 on the outer side of the passenger compartment of the mounting plate portion 47, and on the side surface on the one side of the mounting hole 49 on the surface opposite to the reinforcing plate portion 87 of the substrate portion 85. Abutting and contacting the opposite side surface of the mounting hole 49 with an inclined surface opposite to the engaging claw 76 of the reinforcing plate 87. In addition, at this time, the backing plate portion 88 of the shock absorbing member 72 comes into contact with the mounting plate portion 47 of the trim member 23. Further, at this time, the base plate portion 85 can be maintained in an engaged state with the trim member 23 in an elastically deformed state, and as a result, the folded portion 70 of the roof lining 22 can be pressed against the step plate portion 46 of the trim member 23. it can.

  As a result, the engaging portion 76 of the shock absorbing member 72 is provided between the trim member 23 and the roof lining 22, and the engaging portion 76 is a vertical rib 74 formed on the shock absorbing member 72. It extends from the position.

  According to the arrangement structure of the airbag device 20 of the present embodiment described above, the roof lining 22 disposed on the interior side of the roof panel 25 of the vehicle body 11, the trim member 23 covering the airbag device 20, and Since the engaging portion 76 of the shock absorbing member 72 is provided between the roof lining 22 and the trim member 23, the engaging portion 76 of the shock absorbing member 72 can be aligned. That is, by engaging the engaging portion 76 of the shock absorbing member 72 with the trim member 23, the separation of the trim member 23 from the roof lining 22 is suppressed, and the gap between the mating portions of the trim member 23 and the roof lining 22 is reduced. It can be kept small. Accordingly, it is possible to improve the appearance of the fitting portion of the roof lining 22 and the trim member 23 and improve the appearance. Similarly, the alignment between the roof lining 22 and the bracket 30 and the alignment between the trim member 23 and the bracket 30 can be performed well.

  In addition, since the engaging portion 76 of the impact absorbing member 72 is provided between the roof lining 22 and the trim member 23, it is possible to suppress the occurrence of squeal generated by friction between the roof lining 22 and the trim member 23. .

  In addition, since the engaging portion 76 is formed in the shock absorbing member 72 disposed between the roof lining 22 and the roof panel 25, the appearance of the mating portion between the roof lining 22 and the trim member 23 can be achieved without increasing the number of parts. Can be improved.

  Further, since the engaging portion 76 extends from the position of the vertical rib 74 formed on the shock absorbing member 72, the rigidity of the engaging portion 76 can be increased by the vertical rib 74.

  In addition, since the engagement state with the trim member 23 is maintained with the engagement portion 76 deformed by a predetermined amount, the trim member 23 can be pressed against the roof lining 22 by the urging force due to the deformation of the engagement portion 76. it can. Therefore, a gap generated between the trim member 23 and the roof lining 22 can be eliminated, and the appearance is further improved.

  Furthermore, since the shock absorbing member 72 is integrally fixed on the roof lining 22, the roof lining 22 and the shock absorbing member 72 can be easily assembled and aligned.

  In addition, because it is formed of a relatively soft material, deformation of the interior of the vehicle interior and the exterior of the vehicle interior tends to cause dimensional variations during assembly, and a roof lining 22 that tends to generate a gap with the trim member 23. By suppressing the deformation of the vehicle outer side terminal using the contact plate part 81 of the relatively hard shock absorbing member 72, the positioning performance of the terminal part can be improved and the appearance quality can be kept good.

  Further, since the support surface 81a of the contact plate portion 81 is formed in a direction substantially orthogonal to the engaging portion 76, the vehicle exterior terminal of the roof lining 22 that is disposed in the vicinity of the engaging portion 76 is positioned. Thus, the variation in dimensions can be greatly reduced, and the alignment accuracy of the outside terminal of the roof lining 22 can be improved.

  In addition, since the backing plate portion 88 that can come into contact with the mounting plate portion 47 of the trim member 23 that engages with the engaging portion 76 is provided on the engaging portion 76 side of the shock absorbing member 72, the movement of the roof lining 22. Can be further controlled, and the occurrence of a step on the design surface can be prevented.

  Note that the airbag device 20 ignites the inflator 17 when a deployment condition such as a gravitational acceleration of a predetermined level or more is detected at the time of a vehicle collision, and the airbag 16 in a folded state is a gas generated by the inflator 17. It expands to extend downward. Then, the airbag 16 collides with the lower part of the main plate portion 45 of the trim member 23 during deployment and presses it against the vehicle interior side. With this pressing force, the trim member 23 is joined to the upper end portion thereof. The lower U-shaped hinge member 34 is deformed so as to open and is rotated so as to move the lower part to the vehicle interior side. As a result, the trim member 23 opens so that the lower portion thereof is separated from the lower portion of the base member 60, and the airbag 16 is deployed to the lower passenger compartment side through the gap formed thereby, and is positioned outside the passenger compartment. To protect the crew.

  In the embodiment described above, the engaging portion 76 is extended from the position of the vertical rib 74 of the shock absorbing portion 75. However, as shown by the two-dot chain line in FIG. 6, the vertical rib 74 is not formed. The engaging portion 76 may be extended from the position between the ribs 74. With this configuration, the elasticity of the engaging portion 76 can be set large.

  In the above embodiment, the metal hinge member 34 is provided to easily swing the trim member 23 with respect to the bracket 30 when the airbag 16 is deployed. However, other various hinge structures can be applied. is there.

  Furthermore, although the case where the assist grip 33 is attached to the bracket 30 as an interior material has been described as an example in the above-described embodiment, in addition to the assist grip 33, an air outlet or an indoor lamp may be attached to the bracket 30.

  In the above embodiment, the curtain airbag device 20 disposed near the door opening 14 that is opened and closed by the side door 13 has been described as an example, but in the vicinity of the tailgate opening that is opened and closed by the tailgate. The present invention can also be applied to a curtain airbag device provided.

1 is a perspective view showing a vehicle to which an arrangement structure of an airbag device according to an embodiment of the present invention is applied. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial side view showing an interior of a vehicle to which an airbag device arrangement structure according to an embodiment of the present invention is applied. It is sectional drawing which follows the AA line of FIG. It is sectional drawing which follows the BB line of FIG. It is sectional drawing which follows the CC line of FIG. It is a front view which shows the impact-absorbing member used for the arrangement | positioning structure of the airbag apparatus of one Embodiment of this invention.

Explanation of symbols

10 Vehicle 11 Car body 14 Door opening (opening)
20 air bag device 22 roof lining 23 trim member 25 roof panel 72 shock absorbing member 74 longitudinal rib (rib)
76 Engagement part

Claims (6)

An arrangement structure of an airbag device that is arranged along the opening in the vicinity of the opening of the vehicle and can be deployed in the vehicle interior,
Roof lining arranged on the vehicle interior side of the roof panel of the car body,
A trim member covering the vehicle body together with the roof lining,
While covering the airbag device with the trim member,
Shock absorbing member having a shock absorbing portion between the roof lining and the roof panel is provided with an engaging portion engaged with the trim member is eclipsed set between the roof lining and the trim member,
The airbag device disposition structure characterized in that the engaging portion extends from a lower position of a vertical rib formed in the shock absorbing portion along the outside of the vehicle interior and along the vertical direction . The arrangement structure of the airbag device according to claim 1 , wherein the engagement portion is maintained in an engagement state with the trim member in a state where the engagement portion is deformed by a predetermined amount. Arrangement structure of the airbag apparatus according to claim 1 or 2, wherein the shock absorbing member, characterized in that it is fixed integrally on the roof lining. While folding the roof outside terminal of the roofing to the back side of the design surface,
The arrangement structure of the airbag device according to any one of claims 1 to 3 , wherein the shock absorbing member is provided with a support portion that supports the vehicle outer side terminal from the inside. The arrangement structure of the airbag device according to claim 4 , wherein a support surface of the support portion is formed in a direction substantially orthogonal to the extending direction of the engagement portion. The shock absorbing member is in contact with a mounting plate portion that engages with the engaging portion of the trim member on the side of the engaging portion of the shock absorbing portion and on the side opposite to the roof lining of the engaging portion. The arrangement structure of the airbag apparatus as described in any one of Claims 1 thru | or 5 which provided the possible backing part.

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