JP4661811B2 - Curtain airbag device - Google Patents

Description

  The present invention relates to a curtain airbag device in which a gas is ejected from an inflator at the time of a side collision or rollover of an automobile, and an airbag is deployed in a curtain shape from a pillar portion along a roof side portion by this gas.

  2. Description of the Related Art In recent years, a curtain airbag that deploys an airbag in the form of a curtain below a roof side portion has been mounted as an occupant protection auxiliary device for an automobile at the time of a side collision or rollover. Further, a curtain airbag device that can be deployed between the head of an occupant seated in an automobile seat and the side of the vehicle body to protect the occupant's head has already been known.

Here, Patent Documents 1 and 2 below disclose this type of curtain airbag device. Briefly, in these curtain airbag devices, depending on how the airbag is folded, when the airbag is deployed, the airbag is deployed toward the inner side of the vehicle interior to be caught on the upper end of the B pillar garnish. Is preventing.
Japanese Patent No. 3329277 JP 2005-510390 A

  However, in the curtain airbag device, the folded shape of the airbag is separated from the side of the compartment so that the airbag does not easily catch on the upper end of the B-pillar garnish or C-pillar garnish (hereinafter simply referred to as the pillar garnish) when the airbag is deployed. If the shape expands in the direction in which the air bag expands, the air bag easily catches on the A-pillar garnish that opens from the lower side along the side of the passenger compartment. Become.

  On the other hand, when the airbag is folded such that the airbag is deployed downward along the side of the passenger compartment where it is difficult for the airbag to be caught by the A-pillar garnish when the airbag is deployed, the airbag is easily caught by the upper end of the pillar garnish. As a countermeasure, it is conceivable that the airbag is less likely to be caught on the upper end of the pillar garnish by setting a jump stand on the roof side rail or by setting the upper end of the pillar garnish downward. However, when the jump stand is set on the roof side rail, it is necessary to provide a deployment guide cloth or the like for guiding the airbag to be deployed to the vehicle interior side, and the airbag in the retracted state becomes bulky. In addition, when the upper end of the pillar garnish is set downward, the shape of the molded ceiling becomes complicated, the efficiency of creating the molded ceiling is poor, and design restrictions are increased.

  In consideration of the above fact, the present invention is not affected by the folded shape of the airbag, the airbag in the retracted state is not bulky, and the upper end of the pillar garnish is not set downward. It is an object to obtain a curtain airbag device that can be smoothly deployed.

  The curtain airbag device of the present invention according to claim 1 comprises an airbag that is deployed in a curtain shape across the pillar and the roof side, and a vehicle interior side portion of the pillar, and an upper end portion thereof is in a retracted state. A pillar garnish positioned below the airbag deployment direction side and in the airbag deployment direction, and a guide portion provided on the roof side rail for guiding the airbag to be deployed to the vehicle interior side. An airbag guide means comprising: a deforming portion that deforms toward the vehicle compartment outer side by the deployment force of the airbag, thereby preventing the upper end portion of the pillar garnish from moving toward the vehicle interior side when the airbag is deployed. It is characterized by having.

  When the airbag is deployed in a curtain shape across the pillar and the roof side, the airbag is guided to the vehicle interior side by the guide portion of the airbag guide means provided on the roof side rail. Further, the deformed portion of the air bag guide means is deformed toward the outside of the passenger compartment by the deploying force of the air bag, thereby preventing the upper end portion of the pillar garnish from moving toward the inside of the passenger compartment when the airbag is deployed. For this reason, it becomes difficult for the airbag in the middle of deployment to contact or get caught on the upper end of the pillar garnish. For this reason, the airbag is smoothly deployed without being affected by the folded shape of the airbag, without being bulky, and without setting the upper end portion of the pillar garnish downward.

  According to a second aspect of the present invention, in the curtain airbag device according to the first aspect, the pillar garnish has an engagement portion with which a deformation portion of the airbag guide means is engaged.

  The deformed portion of the air bag guide means is deformed in the outer side of the passenger compartment by the deploying force of the air bag, so that the deformed portion of the air bag guide means is engaged with the engaging portion of the pillar garnish. For this reason, the movement of the upper end portion of the pillar garnish in the direction toward the passenger compartment can be prevented with a simple configuration when the airbag is deployed.

  According to a third aspect of the present invention, there is provided the curtain airbag device according to any one of the first and second aspects, wherein the airbag guide means has a fixed portion provided above the deformable portion on the roof side rail. It is fixed, The deformation space of the said deformation | transformation part is provided between the said roof side rail and the said deformation | transformation part, It is characterized by the above-mentioned.

  In the airbag guide means, a fixed portion provided at the upper end portion is fixed to the roof side rail, and the deformable portion is deformed into a deformation space between the roof side rail and the deformable portion when the airbag is deployed. For this reason, the deformation space of the deformation | transformation part of an airbag guide means is securable.

  According to a fourth aspect of the present invention, there is provided the curtain airbag device according to any one of the first to third aspects, wherein the airbag guide means is an air that is deformed to a position that covers an upper end portion of the pillar garnish when the airbag is deployed. It has a bag guide member.

  When the airbag is deployed, the airbag guide member of the airbag guide means is deformed to a position that covers the upper end portion of the pillar garnish so that the airbag does not contact or get caught on the upper end portion of the pillar garnish. For this reason, the airbag is deployed more smoothly.

  According to a fifth aspect of the present invention, in the curtain airbag device according to the fourth aspect, the airbag guide member is made of a soft material.

  When the airbag is deployed, the airbag guide member made of a soft material is easily deformed into a position covering the upper end portion of the pillar garnish by the pressing force of the airbag. For this reason, the upper end part of the pillar garnish can be covered with a simple configuration when the airbag is deployed.

  The curtain airbag device according to the first aspect of the present invention sets the upper end portion of the pillar garnish downward without being affected by the folded shape of the airbag, without the airbag in the retracted state being bulky. Therefore, the airbag can be smoothly deployed.

  The curtain airbag device of the present invention according to claim 2 can smoothly deploy the airbag with a simple configuration.

  The curtain airbag device according to the third aspect of the present invention can secure a deformation space for the airbag guide means.

  The curtain airbag device of the present invention according to claim 4 can deploy the airbag more smoothly.

  The curtain airbag device of the present invention according to claim 5 can cover the upper end of the pillar garnish when the airbag is deployed with a simple configuration.

  A curtain airbag device according to a first embodiment of the present invention will be described with reference to FIGS.

  In the figure, the arrow FR indicates the vehicle front direction, the arrow UP indicates the vehicle upward direction, and the arrow IN indicates the vehicle width direction inner side.

  FIG. 5 is a side view of a vehicle compartment side portion to which the curtain airbag device of the present invention is applied as viewed from the vehicle compartment side.

  As shown in FIG. 5, the curtain airbag device 10 according to this embodiment includes a front pillar (A pillar) 12, a center pillar (B pillar) 14, and a quarter pillar (C pillar) 16 along a roof side rail 18. The airbag 20 disposed in a folded state, and a substantially circular cylinder that is disposed and connected to the rear end of the airbag 20 in the longitudinal direction and that operates when a side collision occurs (or during a side collision or rollover) and ejects gas. And an inflator 22 having a shape.

  Attachment pieces 24 are formed at appropriate intervals on the upper edge of the airbag 20, and these attachment pieces 24 are attached to a roof side rail inner panel of the roof side rail 18 which is not shown in FIG. 5 with bolts and weld nuts. By fastening and fixing, the airbag 20 is fixed to the body side.

  Although not shown in the drawings, the folded airbag 20 is held in a folded state by partial wrapping with an easily ruptured wrap material, partial temporary fixing with a tape-shaped hook-and-loop fastener, or the like. .

  The airbag 20 is inflated and deployed on the side of the head of the occupant seated in the front seat, and the rear side inflated and deployed on the side of the head of the occupant seated in the rear seat. Part 20B. Further, the inflator 22 for inflating and deploying the airbag 20 is fastened and fixed to the quarter pillar inner panel of the quarter pillar 16 with a bolt and a weld nut by a bracket (not shown). Further, a gas ejection portion 22A of the inflator 22 is connected to the rear end portion 20C of the airbag 20.

  The inflator 22 is connected to an unillustrated airbag ECU (control means) disposed below the console box and the like, and an unillustrated side collision detection sensor (means) disposed below the center pillar 14 and the like. Alternatively, when a side collision state or a rollover state is detected by a rollover detection sensor (means) (not shown) disposed in the airbag ECU or the like, it is energized and activated to generate gas.

  FIG. 1 is an enlarged cross-sectional view taken along the line 1-1 in FIG.

  As shown in FIG. 1, the airbag 20 of the curtain airbag device 10 is covered with the terminal portion 34 </ b> A of the roof head lining 34 on the vehicle interior side. That is, the terminal portion 34A in the vehicle width direction of the roof head lining 34 is bent and suspended from the general portion 34B to the vehicle lower side, and the airbag 20 is folded in a long shape outside the terminal portion 34A of the roof head lining 34. Is stored. Further, in the retracted state (the state after assembly), the upper end portion (upper edge) 36A of the center pillar garnish 36 is disposed so as to overlap the end edge of the terminal portion 34A of the roof head lining 34 from the vehicle interior side. Yes.

  Further, the upper end portion (upper edge) 36A of the center pillar garnish 36 is below the deployment direction side portion 20D of the airbag 20 in the retracted state, and in the deployment direction of the airbag 20 (the arrow Y direction in FIG. 1). positioned.

  The center pillar 14 includes a center pillar inner panel 38 disposed on the vehicle interior side, and a center pillar portion 40A of a cylinder outer 40 that forms a closed cross-sectional structure with the center pillar inner panel 38. Further, the roof side rail 18 extends along the vehicle front-rear direction on the vehicle interior side of the roof side rail portion 40B of the cylinder outer 40.

  The roof side rail 18 is a closed side that extends in the vehicle front-rear direction by a roof side rail inner panel 41 that constitutes the vehicle interior side portion of the roof side rail 18 and a roof side rail outer panel 43 that constitutes the vehicle exterior side portion of the roof side rail 18. It has a cross-sectional structure, and an upper end portion 38A of the center pillar inner panel 38 is fixed to the side surface of the vehicle interior of the lower portion 41A of the roof side rail inner panel 41 by spot welding or the like.

  Further, on the upper surface of the coupling flange 18A formed at the upper part of the roof side rail 18, an outer edge in the vehicle width direction of the roof panel 45 is sandwiched by an inner edge 40C in the vehicle width direction of the roof side rail portion 40B in the outer outer 40. 45A is bound.

  On the vehicle interior side of the center pillar inner panel 38, a center pillar garnish 36 is provided along the vehicle vertical direction. In this embodiment, the center pillar garnish 36 is made of resin, but the center pillar garnish 36 is made of a resin base material and a skin covering the surface of the base material on the vehicle interior side. Also good.

  FIG. 4 is a perspective view of the main part of the curtain airbag device of the present invention as seen from the diagonally forward inner side of the passenger compartment.

  As shown in FIG. 4, the center pillar garnish 36 has a substantially U-shaped cross-sectional shape, and has a main wall portion 36B along the side surface of the vehicle interior, and a vehicle width direction from the front edge of the main wall portion 36B. The front wall portion 36C is bent outward and the rear wall portion 36D is bent outward from the rear edge of the main wall portion 36B in the vehicle width direction.

  A mounting wall portion 36E is formed at the vehicle longitudinal direction central portion in the vicinity of the upper end of the main wall portion 36B toward the outside of the passenger compartment.

  As shown in FIG. 1, the mounting wall portion 36E of the center pillar garnish 36 has a flat plate shape, and extends from the main wall portion 36B upward in the vehicle width direction. From the upper end 36F of the mounting wall portion 36E, an engaging wall portion 36G as an engaging portion is formed substantially parallel to the main wall portion 36B toward the vehicle width inside upper side, and from the upper end 36F of the mounting wall portion 36E. An inclined wall portion 36H is formed toward the lower side outside the vehicle width. Further, a mounting portion 36K is formed at the lower end 36J of the inclined wall portion 36H toward the vehicle width outside lower side.

  A mounting hole 42 is formed in the mounting portion 36K of the center pillar garnish 36, and a mounting hole 44 is formed in the upper portion 38B of the center pillar inner panel 38. A clip 48 is inserted into the mounting hole 42 of the center pillar garnish 36 and the mounting hole 44 of the center pillar inner panel 38 from the vehicle interior side direction toward the vehicle interior outer side direction. 36K is fixed to the upper part 38B of the center pillar inner panel 38 by a clip 48.

  As shown in FIG. 5, a seat belt adjuster 50 is provided on the center pillar garnish 36, and a shoulder anchor 54 of the seat belt 52 is movable in the vehicle vertical direction by the seat belt adjuster 50. . A slide plate 56 of the seat belt adjuster 50 is provided on the outer side surface of the main wall portion 36B of the center pillar garnish 36.

  As shown in FIG. 4, the slide plate 56 is formed of a belt-like plate material whose longitudinal direction is the vehicle vertical direction, and the upper end 56 </ b> A is located near the lower portion of the mounting wall portion 36 </ b> E of the center pillar garnish 36. Further, the slide plate 56 is movable upward (in the direction of arrow A in FIG. 4) and downward (in the direction of arrow B in FIG. 4) with respect to the center pillar garnish 36, and to the highest position above the vehicle. Even when the slide plate 56 moves, the upper end 56 </ b> A of the slide plate 56 does not interfere with the mounting wall portion 36 </ b> E of the center pillar garnish 36.

  A jump base 60 as an air bag guide means is provided in the vehicle front-rear direction at a position close to the vehicle upper side of the upper end portion 36A of the center pillar garnish 36. The jump stand 60 is made of metal, hard resin material, or the like.

  As shown in FIG. 1, the jump stand 60 is an outer wall portion 60 </ b> A located on the outer side portion of the airbag 20 in the retracted state, and a guide portion located on the outer side portion of the passenger compartment on the vehicle lower side of the airbag 20. Guide wall portion 60B. Note that the airbag 20 and the outer wall portion 60A or the guide wall portion 60B of the jump base 60 may be in contact with or separated from each other.

  Further, the guide wall portion 60B extends from the intermediate portion in the vertical direction of the outer wall portion 60A toward the vehicle interior side downward, and guides the airbag 20 to be deployed to the vehicle interior side.

  A guide member mounting portion 60C is provided from the lower end of the guide wall portion 60B toward the lower outside of the passenger compartment. The guide member mounting portion 60C is formed by the engagement wall portion 36G of the center pillar garnish 36 and the roof head lining 34. It is located between the terminal unit 34A. The lower portion 60D of the outer wall portion 60A of the jump base 60 is disposed between the upper end portion 38A of the center pillar inner panel 38 and the engaging wall portion 36G of the center pillar garnish 36. The mating wall portion 36G is inserted from the vehicle lower side between the lower portion 60D of the outer wall portion 60A of the jump base 60 and the guide member mounting portion 60C.

  A clearance 59 is formed on each of the engagement wall portion 36G between the engagement wall portion 36G of the center pillar garnish 36 and the jump base 60 in the vehicle width direction inner side, the vehicle width direction outer side, and the vehicle upper side. At the time of attachment, the engaging wall portion 36G of the center pillar garnish 36 can be easily inserted between the lower portion 60D of the outer wall portion 60A of the jump base 60 and the guide member mounting portion 60C from the vehicle lower side.

  A deformation space 61 is formed between the lower portion 60D of the outer wall portion 60A of the jump base 60 and the upper end portion 38A of the center pillar inner panel 38.

  FIG. 2 is a cross-sectional view corresponding to FIG. 1 showing an initial state of the airbag in the curtain airbag device of the present invention.

  As shown in FIG. 2, when the airbag 20 is deployed, the lower casing 60D of the outer wall portion 60A of the jump base 60 becomes the deformation space 61 side when pressed by the deployed airbag 20. It can be deformed outward (in the direction of arrow C in FIG. 2). As a result, the guide member mounting portion 60C of the jump base 60 abuts (engages) with the vehicle interior side surface of the engagement wall portion 36G of the center pillar garnish 36, and the upper end portion 36A of the center pillar garnish 36 is directed toward the vehicle interior side. To stop moving to. That is, the movement of the upper end portion 36A of the center pillar garnish 36 is stopped in the vehicle interior side direction, or the upper end portion 36A of the center pillar garnish 36 is moved outward of the vehicle interior.

  The shape of the guide member mounting portion 60C of the jumping table 60 as viewed from the front-rear direction of the vehicle is substantially J-shaped facing the vehicle interior side, and an airbag guide 62 as an airbag guide member is provided on the inner side of the J-shape. The lower part 62A is inserted and fixed. The airbag guide 62 is made of a soft resin material such as TPO (thermopolyolefin) as a soft material, and is positioned so as to cover the upper end portion 36A of the center pillar garnish 36 by the deployment force of the airbag 20 when the airbag is deployed. It is designed to deform.

  The soft material is a material that ensures a predetermined rigidity without impairing the assembling property and easily deforms to a position that covers the upper end portion 36A of the center pillar garnish 36 by the deployment force of the airbag 20 when the airbag is deployed. is there. Further, to easily deform is to deform without substantially reducing the deployment speed of the airbag 20 (to an extent that affects the deployment performance).

  Further, the upper portion 62D of the airbag guide 62 reaches the vehicle interior side portion of the airbag 20 in the retracted state, and the length of the airbag guide 62 in the vehicle vertical direction is the vehicle interior side as shown in FIG. The length is set so as to cover the upper end portion 36 </ b> A of the center pillar garnish 36. The airbag 20 and the upper portion 62D of the airbag guide 62 may be in contact with each other or separated from each other.

  As shown in FIG. 4, the front end 60E of the jump base 60 and the front end 62B of the airbag guide 62 are located on the vehicle front side from the upper end of the front wall portion 36C of the center pillar garnish 36, and the rear end 60F of the jump base 60 and the air The rear end 62C of the bag guide 62 is located on the vehicle rear side from the upper end of the rear wall portion 36D of the center pillar garnish 36.

  A pair of front and rear mounting portions 60G are formed at the upper end of the outer wall portion 60A of the jumping table 60 so as to protrude in the vehicle front-rear direction with a predetermined interval, and these mounting portions 60G have mounting holes respectively. 63 is formed.

  As shown in FIG. 1, the mounting portion 60 </ b> G of the jump stand 60 is attached to the roof side rail inner panel 41 by a clip 64 as a fixing member that is inserted into the mounting hole 63 from the vehicle interior side direction toward the vehicle interior exterior direction. It is fixed to the side of the vehicle interior of the vertical middle portion 41B. A mounting hole 66 for inserting the clip 64 is formed in the intermediate portion 41B in the vertical direction of the roof side rail inner panel 41.

  As shown in FIG. 2, the airbag 20 starts to be deployed from a state where the airbag 20 is folded into a roll shape when gas is supplied from the inflator 22. At this time, due to the deploying force of the airbag 20, the upper portion 62D of the airbag guide 62 (the portion on the vehicle upper side of the lower portion 62A supported by the guide member mounting portion 60C of the jump base 60) is directed toward the vehicle interior side (the arrow in FIG. 2). It is deformed (deployed) in the D direction).

  Therefore, when the airbag 20 is deployed, the upper portion 62D of the airbag guide 62 is deformed toward the vehicle interior side (in the direction of arrow D in FIG. 2) to cover the upper end portion 36A of the center pillar garnish 36.

  Further, when the airbag 20 is deployed, the terminal portion 34A of the roof head lining 34 is pushed open in the vehicle interior side direction (the direction of arrow E in FIG. 2) by the deployment force of the airbag 20. At this time, since the upper end portion 36A of the center pillar garnish 36 is arranged on the terminal portion 34A of the roof head lining 34 so as to overlap from the vehicle interior side, the upper end portion 36A of the center pillar garnish 36 is also pressed toward the vehicle interior side. However, the guide member mounting portion 60C of the jump base 60 abuts on the side surface of the engagement wall portion 36G of the center pillar garnish 36 so that the upper end portion 36A of the center pillar garnish 36 is in the vehicle interior side direction. To stop moving to.

  For this reason, the airbag 20 is prevented from contacting or catching on the upper end portion 36 </ b> A of the center pillar garnish 36. As a result, it is possible to prevent problems such as the airbag 20 not being reliably deployed in the direction toward the interior of the vehicle interior or the deployment timing being delayed.

  FIG. 3 is an enlarged cross-sectional view taken along the line 3-3 in FIG.

  As shown in FIG. 3, the front pillar (A pillar) 12 forms a closed cross-sectional structure with the front pillar inner panel 70 constituting the vehicle interior side portion and the vehicle interior outside portion and the front pillar inner panel 70. The front pillar portion 40B of the cycle outer 40 and the front pillar reinforcement 72 disposed in the closed cross-sectional structure are mainly configured.

  A front pillar garnish 74 is provided on the vehicle interior side of the front pillar inner panel 70. In this embodiment, the front pillar garnish 74 is made of a resin, but the front pillar garnish 74 is made of a resin base material and a skin covering the surface of the base material on the vehicle interior side. Also good.

  Further, when the airbag 20 is deployed, the lower end portion 74A of the front pillar garnish 74 is detached from the weather strip 76 due to the deployment force of the airbag 20, and the vehicle interior side direction ( It pushes and opens in the direction of arrow F in FIG. At this time, the airbag 20 is wound on an outer roll so as to be deployed obliquely outward and downward (in the direction of arrow G in FIG. 3) (from the vehicle interior side to the vehicle exterior side in the upper portion of the airbag 20 as shown in FIG. 3). Winding direction). Therefore, the airbag 20 is smoothly deployed toward the vehicle lower side along the vehicle interior side surface of the front side door 13 (see FIG. 5) without being caught by the lower end portion 74A of the front pillar garnish 74. Yes.

  The airbag 20 is folded between the front pillar (A pillar) 12, the center pillar (B pillar) 14, and the quarter pillar (C pillar) 16 by outer roll winding.

  Next, the operation of this embodiment will be described.

  In the present embodiment, when a side collision or rollover is detected by the sensor, the inflator 22 is activated and a predetermined amount of gas is ejected from the inflator 22. As a result, the airbag 20 starts to be deployed, and the deployed airbag 20 pushes and opens the terminal portion 34A of the roof head lining 34 from below the roof side rail 18 as shown in FIG. It expands and expands in the form of a curtain toward the front side.

  Further, as shown by a two-dot chain line in FIG. 3, the deployed airbag 20 pushes and opens the front pillar garnish 74 in the vehicle interior side direction (the direction of arrow F in FIG. 3), and the vehicle rear side below the front pillar 12. It expands and deploys in the form of a curtain from the vehicle front side.

  At this time, since the airbag 20 is wound in an outer roll so as to be deployed obliquely outwardly downward (in the direction of arrow G in FIG. 3), the front side door is not caught by the lower end portion 74A of the front pillar garnish 74. 13 (see FIG. 5) can be smoothly deployed into the passenger compartment along the side of the passenger compartment.

  In addition, as shown in FIG. 2, above the center pillar 14, the terminal portion 34 </ b> A of the roof head lining 34 is pushed and opened toward the vehicle interior side (in the direction of arrow E in FIG. 2) by the deploying force of the airbag 20. Since the upper end portion 36A of the center pillar garnish 36 is disposed on the terminal portion 34A of the roof head lining 34 so as to overlap from the vehicle interior side, the upper end portion 36A of the center pillar garnish 36 is also pressed toward the vehicle interior side and deformed. However, since the mounting portion 36K of the center pillar garnish 36 is fixed to the upper portion 38B of the center pillar inner panel 38 by the clip 48, the end portion 34A of the roof head lining 34 is separated from the upper end portion 36A of the center pillar garnish 36. Unfold and expand in the direction toward the passenger compartment (the direction of arrow E in FIG. 2) Going on. Further, in the present embodiment, the lower member 60D of the outer wall portion 60A of the jump base 60 is deformed in the vehicle compartment outer side (direction of arrow C in FIG. 2) on the deformation space 61 side. The attachment portion 60C abuts against the vehicle interior side surface of the engagement wall portion 36G of the center pillar garnish 36 to prevent the upper end portion 36A of the center pillar garnish 36 from moving in the vehicle interior side direction.

  Further, due to the deploying force of the airbag 20, the upper portion 62D of the airbag guide 62 (the portion on the vehicle upper side from the lower portion 62A supported by the guide member mounting portion 60C of the jump base 60) is directed toward the vehicle interior side (arrow D in FIG. 2). The upper end portion 36A of the center pillar garnish 36 is covered.

  For this reason, the airbag 20 does not contact or catch on the upper end portion 36 </ b> A of the center pillar garnish 36. As a result, it is possible to prevent problems such as the airbag 20 not being reliably deployed in the direction toward the interior of the vehicle interior or the deployment timing being delayed.

  In other words, in the present embodiment, the guide member mounting portion 60C of the jump base 60 is not affected by the folded shape (outer roll winding) of the airbag 20, and the upper end portion 36A of the center pillar garnish 36 has the center pillar garnish. The airbag 20 can be smoothly deployed by coming into contact with the vehicle interior side surface of the engagement wall portion 36G of the 36 and preventing the upper end portion 36A of the center pillar garnish 36 from moving toward the vehicle interior side. Further, since the upper portion 62D of the airbag guide 62 covers the upper end portion 36A of the center pillar garnish 36, the airbag 20 in the retracted state does not become bulky and the upper end portion 36A of the center pillar garnish 36 is set downward. The airbag 20 can be deployed more smoothly.

  In the present embodiment, since the upper portion 62D of the airbag guide 62 is made of a soft resin material, when the airbag 20 is deployed, the upper portion 62D of the airbag guide 62 is moved to the center pillar garnish 36 by the pressing force of the airbag 20. It easily deforms to a position covering the upper end portion 36A. For this reason, the upper end portion 36A of the center pillar garnish 36 can be covered with a simple configuration.

  In the present embodiment, it is not necessary to set the upper end portion 36A of the center pillar garnish 36 on the vehicle lower side so that the airbag 20 is not caught by the upper end portion 36A of the center pillar garnish 36. For this reason, even when the slide plate 56 moves to the highest position above the vehicle, the upper end 56A of the slide plate 56 does not interfere with the mounting wall portion 36E of the center pillar garnish 36.

  Furthermore, since it is not necessary to set the upper end portion 36A of the center pillar garnish 36 on the vehicle lower side, the shape of the roof head lining 34 does not become complicated. As a result, the yield of the roof head lining 34 is good, and the design restrictions of the roof head lining 34 are few.

  Further, in the present embodiment, the airbag 20 can be held in the retracted position by the jump base 60 and the airbag guide 62, and when the airbag 20 is assembled to the vehicle body, the jump base 60 and the airbag guide 62 are used. Thus, the airbag 20 can be temporarily placed at the assembly position (storage position). For this reason, the assembly workability | operativity of the airbag 20 improves.

  Next, a second embodiment of the curtain airbag device of the present invention will be described with reference to FIG.

  In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  FIG. 6 shows a perspective view of a main part of the curtain airbag device of the present embodiment as seen from the obliquely forward inner side of the passenger compartment.

  As shown in FIG. 6, in this embodiment, a clip 60 </ b> H as a fixing member is integrally formed with the attachment portion 60 </ b> G of the jump base 60. Although not shown, the clip 60H is inserted into the mounting hole 62 of the roof side rail inner panel 41 from the vehicle interior side direction, like the clip 64 shown in FIG.

  Therefore, in the present embodiment, the same operational effects as those of the first embodiment can be obtained, and the clip 60H can be integrally formed with the mounting portion 60G of the jump base 60, so that the number of parts can be reduced and the assembling workability can be improved. improves.

  In the above, the present invention has been described in detail for specific embodiments. However, the present invention is not limited to the above-described 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 each of the embodiments described above, the clearances 59 are respectively provided on the inner side in the vehicle width direction, the outer side in the vehicle width direction, and the upper side of the vehicle on the engaging wall portion 36G between the engaging wall portion 36G of the center pillar garnish 36 and the jump base 60. Although formed, these gaps 59 may not be formed.

  Moreover, in each said embodiment, it was set as the structure which inserts the engagement wall part 36G of the center pillar garnish 36 from lower part 60D of the outer side wall part 60A of the jump stand 60, and the guide member attaching part 60C from the vehicle lower side. However, instead of this, the engaging wall portion 36G of the center pillar garnish 36 may be coupled to the lower portion 60D of the outer wall portion 60A of the jump base 60.

  Moreover, in each said embodiment, it was set as the structure which folds the airbag 20 to outer roll folding, However, How to fold the airbag 20 is not limited to outer roll folding, It is good also as another folding method.

  In each of the above embodiments, the airbag guide 62 is made of a soft resin material such as TPO (thermopolyolefin) as a soft material. However, instead of the soft resin material, the airbag guide 62 has a predetermined rigidity that does not impair the assembling property. As long as it is a material that can be easily deformed to a position that covers the upper end portion 36A of the center pillar garnish 36 by the deployment force of the airbag 20 when the airbag is deployed, other soft materials such as a thin metal plate may be used. Good.

  In addition, the sliding surface of the airbag guide 62 with the airbag 20 may be subjected to texture processing or the like to reduce the frictional resistance with the airbag 20 to be deployed.

  In each of the above embodiments, the front end 60E of the jump base 60 and the front end 62B of the airbag guide 62 are located on the vehicle front side from the upper end of the front wall portion 36C of the center pillar garnish 36, and the rear end 60F of the jump base 60 and the airbag Although the rear end 62C of the guide 62 is located on the vehicle rear side from the upper end of the rear wall portion 36D of the center pillar garnish 36, instead of this, when the inflator 22 is on the vehicle front side of the jump base 60, the jump base 60 The front end 60E and the front end 62B of the airbag guide 62 are set to the vehicle front side from the upper end of the front wall portion 36C of the center pillar garnish 36, and the rear end 60F of the jump base 60 and the rear end 62C of the airbag guide 62 are center pillar garnish 36. It is good also as a structure which is not set as the vehicle rear side from the upper end of 36D of rear wall parts. Further, when the inflator 22 is on the vehicle rear side of the jump base 60, the rear end 60F of the jump base 60 and the rear end 62C of the airbag guide 62 are arranged on the vehicle rear side from the upper end of the rear wall portion 36D of the center pillar garnish 36. The front end 60E of the jump base 60 and the front end 62B of the airbag guide 62 may be configured not to be on the vehicle front side from the upper end of the front wall portion 36C of the center pillar garnish 36.

  Moreover, in each said embodiment, although the type with which the inflator 22 is arrange | positioned at the front-back direction rear-end part of the airbag 20 is employ | adopted, the inflator 22 is the front-back direction front end part of the airbag 20, the front-back direction center part, etc. It is good also as a structure arrange | positioned in another position.

  Moreover, in each said embodiment, although this invention was applied with respect to the center pillar 14, you may apply this invention to other pillars, such as not only this but a quarter pillar.

FIG. 6 is an enlarged sectional view taken along the 1-1 section line in FIG. 5. It is sectional drawing corresponding to FIG. 1 which shows the deployment start state of an airbag. FIG. 6 is an enlarged cross-sectional view taken along a line 3-3 in FIG. 5. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a main part of a curtain airbag device according to a first embodiment of the present invention from an obliquely forward inner side of a vehicle. It is the side view seen from the vehicle interior side which shows the vehicle compartment side part to which the curtain airbag apparatus which concerns on 1st Embodiment of this invention was applied. It is a perspective view from the vehicle diagonal front side which shows the principal part of the curtain airbag apparatus which concerns on 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Curtain airbag apparatus 12 Front pillar 14 Center pillar 16 Quarter pillar 18 Roof side rail 20 Air bag 22 Inflator 36 Center pillar garnish 36A Upper end part of center pillar garnish 36B Main wall part of center pillar garnish 36E Center pillar garnish mounting wall part 36G Center pillar garnish engagement wall (engagement part)
36H Inclined wall portion of center pillar garnish 36K Center pillar garnish mounting portion 50 Seat belt adjuster 56 Seat belt adjuster slide plate 60 Jump stand (airbag guide means)
60A Jump stand outer wall portion 60B Jump stand guide wall portion (guide portion)
60C Guide base attachment part of jump table 60D Lower part of outer wall part of jump table
61 Deformation space 62 Airbag guide (airbag guide member)
64 clips 70 front pillar inner panel 72 front pillar reinforcement 74 front pillar garnish

Claims (5)

An airbag deployed in a curtain shape across the pillar and the roof side;
A pillar garnish that constitutes a vehicle interior side portion of the pillar, the upper end portion of which is positioned below the airbag deployment direction side portion in the retracted state and in the airbag deployment direction;
A guide portion that is provided on the roof side rail and guides the airbag to be deployed toward the interior of the vehicle interior, and is deformed toward the exterior of the vehicle interior by the deployment force of the airbag, so that the upper end of the pillar garnish when the airbag is deployed An air bag guide means comprising: a deformation portion that prevents movement of the portion in the vehicle interior side direction;
A curtain airbag device comprising:   The curtain airbag device according to claim 1, wherein the pillar garnish has an engaging portion with which a deformable portion of the airbag guide means is engaged.   In the airbag guide means, a fixed portion provided above the deformation portion is fixed to the roof side rail, and a deformation space for the deformation portion is provided between the roof side rail and the deformation portion. The curtain airbag device according to claim 1, wherein the curtain airbag device is provided.   The curtain airbag device according to any one of claims 1 to 3, wherein the airbag guide means includes an airbag guide member that is deformed to a position that covers an upper end portion of the pillar garnish when the airbag is deployed. .   The curtain airbag device according to claim 4, wherein the airbag guide member is made of a soft material.

Images