JP3481473B2 - Arrangement structure of head protection airbag bag - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention ejects gas from an inflator when a predetermined high load is applied to a side portion of a vehicle body, and the gas causes the air bag body stored at least along the roof side rail portion to be shaped like a curtain. The present invention relates to a disposition structure of a head protection airbag bag that is inflated into a.

[0002]

2. Description of the Related Art In order to improve the protection performance of the head of an occupant seated in the front seat when a predetermined high load is applied to the side of a vehicle body, the vehicle is folded over from the A pillar portion to the roof side rail portion. The applicant of the present application has already proposed a head protection airbag device that inflates the stored airbag body in a curtain shape along the side window glass. The configuration disclosed in Japanese Patent Application No. 9-261743 (unpublished) disclosing this head protection airbag device will be described below.

As shown in FIG. 30, in this head protection airbag device, a jump base 102 is arranged below a folded airbag body 100, and the jump base 102 is a B pillar (also a center pillar). It is arranged so as to straddle the B pillar 104 from a portion in the vicinity of the front side of 104). The jump base 102 is made of a plate material that is bent in an L-shaped cross section, and has a guide wall 102A extending toward the upper end 106A of the B pillar garnish 106. Therefore, when the airbag bag body shown by the chain double-dashed line in FIG. 30 is deployed, the airbag bag body 100 is inflated toward the passenger compartment along the guide wall 102A of the jump base 102, and the upper end portion of the B pillar garnish 106. It does not get caught in 106A. In addition, the B pillar garnish is usually divided into upper and lower halves.
Pillar garnish 106 has body 112 at two points above and below.
It is fixed to.

[0004]

However, in this head protection airbag device, the B pillar garnish 10 is used.
The lower end of 6 is fastened and fixed to the body, but the upper end 1
06A is a body 1 with clip 110 from the viewpoint of assembling.
It is fixed at 12. As a result, the body 11
The deformation of 2 causes the body 112 to be clipped to the clip 1.
It is conceivable that 10 is detached and the airbag bag body 100 in the process of deployment is caught on the upper end portion 106A of the B pillar garnish 106 that has floated.

In consideration of the above facts, the present invention has an arrangement structure of a head-protecting airbag bag body which can surely deploy the airbag bag body without catching the airbag bag body during deployment on the upper end portion of the B pillar garnish. The purpose is to obtain.

[0006]

According to a first aspect of the present invention, in a structure for arranging a head-protecting airbag bag body that expands in a curtain shape at least along a roof side rail, an upper end portion of a B-pillar garnish is provided. An airbag bag deployment direction restricting means that has a guide wall that is disposed on the roof side rails that are close to each other and that extends toward the upper end of the B pillar garnish, and the upper end of the B pillar garnish.
And one of the airbag bag deployment direction regulating means
Engaging protrusion formed on one side and the engaging protrusion formed on the other side
Moving but consists of a engaging hole to be engaged, in the passenger compartment side of the upper end portion of the B pillar garnish by the both of them engage each other when the upper end portion of the B pillar garnish is moved slightly into the cabin side And a pair of movement restricting means for restricting.

Therefore, when the body is deformed at the time of a side collision, the upper end of the B pillar garnish moves a little toward the inside of the vehicle. At this time, the upper end of the B pillar garnish and the airbag.
Engagement formed on one of the bag developing direction regulating means
The projection and the engagement hole formed on the other side for the engagement projection to engage.
By Ranaru pair of movement limiting means are engaged with each other, the movement of the passenger compartment side of the upper end portion of the B pillar garnish is restricted. Therefore, the airbag bag body during the inflation and deployment is not caught on the upper end portion of the B pillar garnish, and the airbag bag body can be reliably deployed between the predetermined vehicle side portion and the occupant side portion. Also, engage with the engaging protrusions.
It is possible to have a simple structure in which a dowel is formed.

According to a second aspect of the present invention, in a structure for arranging a head protection airbag bag body that expands in a curtain shape along at least a roof side rail, the airbag structure is provided only on an upper end portion of the B pillar garnish. It is composed of a plate provided with a guide wall for guiding the bag body toward the inside of the vehicle, and an extending portion that wraps around the outside surface of the air bag body to the inside of the vehicle. It is characterized in that an air bag body interlocking means for moving the air bag body toward the interior of the vehicle is provided in association with the movement of the air bag body.

Therefore, when the body is deformed at the time of a side impact and the upper end portion of the B pillar garnish moves toward the vehicle interior, the airbag bag interlocking means also moves the airbag bag toward the vehicle interior. As a result, even if the body is deformed at the time of a side impact and the upper end of the B pillar garnish moves toward the vehicle interior, the positional relationship between the airbag bag and the upper end of the B pillar garnish does not change significantly. Therefore, the airbag bag body during the inflation and deployment is not caught on the upper end portion of the B pillar garnish, and the airbag bag body can be reliably deployed between the predetermined vehicle side portion and the occupant side portion. Further, since the guide wall of the plate also serves as a means for restricting the airbag bag deployment direction in which the airbag bag deployment direction is toward the interior of the vehicle, it is possible to simply add the plate only to the upper end of the B pillar garnish. As a result, the airbag bag body can be more surely deployed toward the interior of the B-pillar garnish.

According to a third aspect of the present invention, there is provided a B-pillar garnish for a head-protecting airbag bag, which is deployed in a curtain shape along at least a roof side rail.
Installed on the roof side rail near the top of the shoe
And extends toward the upper end of the B-pillar garnish.
Means for regulating the direction of deployment of an airbag bag having a guide wall
And the upper end of the B pillar garnish and the airbag
Engagement formed on one of the bag developing direction regulating means
A protrusion and an engagement hole formed on the other side and engaged with the engagement protrusion
And the upper end of the B-pillar garnish is the passenger compartment.
Engagement of the two when they move slightly inward
To the inside of the vehicle at the upper end of the B pillar garnish
Means for restricting the direction of deployment of the airbag bag in conjunction with movement of the airbag
Wall interlocking means for moving the guide wall of the vehicle toward the interior of the vehicle
And are included.

Therefore, at the time of a side collision, the body is deformed and the B-pillar is deformed.
-When the upper end of the garnish moves toward the inside of the vehicle,
Lagarnish top end and airbag bag deployment direction restriction
The engaging projection formed on one of the means and the other on the other
Guide wall formed of an engaging hole formed by an engaging projection
The guide wall is moved toward the passenger compartment by the moving means. This conclusion
As a result, the body is deformed at the time of a side impact and the B pillar garnish
Even if the upper end moves toward the passenger compartment, how to deploy the airbag bag
The guide wall of the direction control means and the upper end of the B pillar garnish
The positional relationship with and does not change significantly. Therefore, during expansion and deployment
The airbag body inside is on the upper end of the B pillar garnish.
It is not caught and the airbag bag body is attached to the specified vehicle side.
It can be surely deployed between the section and the side of the occupant.

[0012]

[0013]

[0014]

[0015]

According to a fourth aspect of the present invention, in the head protection airbag bag arranging structure according to the third aspect , the airbag bag deployment direction restricting means is deformable toward the inside of the vehicle on the roof side. It is characterized by being attached to a rail.

Therefore, in addition to the contents of the third aspect, the structure is simple in that the mounting portion of the airbag bag deployment direction regulating means to the roof side rail can be deformed toward the inside of the vehicle.

According to a fifth aspect of the present invention, in the head protection airbag bag arranging structure according to the third aspect , the guide wall of the airbag bag deployment direction regulating means can be deformed toward the inside of the vehicle. It is characterized by having done.

Therefore, in addition to the contents of the third aspect, the guide wall of the airbag bag deployment direction regulating means can be simply deformed toward the inside of the vehicle.

The present invention according to claim 6 is the same as claim 1 or
In the arrangement structure of the head protection airbag bag according to 3 ,
Before Kigakarigo protrusion has a narrow tapered surface than the width of the width of the tip-side root side, characterized in that it is locked in the tapered surface to said engagement hole.

Therefore, when the upper end of the B-pillar garnish tries to move toward the interior of the vehicle due to the deformation of the body at the time of a side collision, the tapered surface of the engaging projection and the engaging hole are locally fitted to each other and the position thereof is set. Locked in. As a result, the engagement state between the two is not easily released, and the movement of the upper end of the B pillar garnish toward the vehicle interior can be more reliably limited.
Moreover, the effect can be obtained with a simple structure in which the taper surface is used.

[0022] The present invention according to claim 7, claim 1 or
In the arrangement structure of the head protection airbag bag according to 3 ,
Before Kigakarigo protrusion has a narrow tapered surface than the width of the width of the base side of the distal end side, and wherein the engaging groove is the key shape formed within the root portion.

Therefore, when the upper end of the B-pillar garnish tries to move toward the interior of the vehicle due to the deformation of the body at the time of a side collision, the engaging groove and the engaging hole formed at the base of the engaging protrusion are in a locked state. Becomes As a result, the engaged state of both can be maintained more reliably.

According to an eighth aspect of the present invention, in the head protection airbag bag body disposing structure according to the first aspect, the movement limiting means is formed so as to project from the airbag bag deployment direction regulating means. The air bag is composed of an engagement projection and an engagement hole formed at the upper end of the B pillar garnish, and a weak portion is formed in the airbag bag deployment direction restricting means. It is characterized in that the guide wall of the bag bag body unfolding direction regulating means is deformed downward from the fragile portion as a starting point so that the engaging projection is engaged with the engaging hole.

Therefore, when the airbag bag is deployed, the guide wall of the airbag bag deployment direction regulating means is deformed downward from the weak point as a starting point, and the engaging projection engages with the engaging hole formed at the upper end of the B pillar garnish. To meet. As a result, the amount of movement of the upper end of the B pillar garnish toward the vehicle interior can be reduced by utilizing the airbag bag inflation force. Further, since the amount of movement of the upper end of the B pillar garnish toward the passenger compartment can be reduced, it is not necessary to firmly fix the upper end of the B pillar garnish to the B pillar, and the assembling property of the B pillar garnish is not impaired.

According to a ninth aspect of the present invention, in the head protective airbag bag arranging structure according to the first aspect, the movement limiting means is located below the airbag bag deployment direction regulating means. And an engaging hole having an engaging protrusion provided so as to be relatively movable to each other, and an engaging hole formed in an upper end portion of the B pillar garnish, and the engaging plate is moved downward by the inflation force of the airbag bag. The engaging projection is engaged with the engaging hole.

Therefore, when the airbag bag is deployed, the expanding force of the airbag bag acts on the engaging plate, and the engaging protrusion relatively moves downward, so that the engaging protrusion of the engaging plate causes the upper end portion of the B pillar garnish. Engage with the engaging hole of. As a result, the amount of movement of the upper end of the B pillar garnish toward the vehicle interior can be further reduced by utilizing the expansion force of the airbag bag. Further, since the amount of movement of the upper end of the B pillar garnish toward the vehicle interior can be reduced, the upper end of the B pillar garnish is
It does not need to be firmly fixed to the pillar, and does not impair the assembling property of the B pillar garnish.

According to a tenth aspect of the present invention, in the head protection airbag bag arranging structure according to the first aspect, the movement limiting means is formed so as to project from the airbag bag deployment direction regulating means. And an engaging hole formed in the upper end of the B pillar garnish, and the guide wall of the airbag bag deployment direction regulating means is slidable in the vertical direction by a predetermined amount. It is characterized by

Therefore, when the airbag bag is deployed, the inflating force of the airbag bag acts on the airbag bag deployment direction regulating means to push down the guide wall of the airbag bag deployment direction regulating means, and the engaging protrusion thereof. Engages with the engaging hole at the upper end of the B pillar garnish. As a result, the amount of movement of the upper end of the B pillar garnish toward the vehicle interior can be further reduced by utilizing the expansion force of the airbag bag. Also, since the amount of movement of the upper end of the B pillar garnish toward the vehicle interior can be reduced,
It is not necessary to firmly fix the upper end of the B-pillar garnish to the B-pillar, and the assembling property of the B-pillar garnish is not impaired. Since the guide wall of the airbag bag deployment direction regulating means is slidable in the vertical direction by a predetermined amount, the guide of the airbag bag deployment direction regulating means after the upper end of the B pillar garnish is assembled to the B pillar. It is also possible to move the wall downward so that the engagement protrusion of the airbag bag deployment direction regulating means is previously engaged with the engagement hole at the upper end of the B pillar garnish.

[0030]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of an arrangement structure of a head protection airbag bag according to the present invention will be described with reference to FIGS.

In the figure, an arrow FR indicates a vehicle front direction, an arrow UP indicates a vehicle upward direction, and an arrow IN indicates a vehicle width inward direction.

As shown in FIG. 4, the head protection airbag device 10 includes a sensor 12 for detecting a side collision state,
A cylindrical inflator 14 that ejects gas when activated and an airbag bag 16 are configured as main components. The sensor 12 is arranged near the lower end portion of the B pillar (center pillar) 18 and detects the side collision state when a side collision load of a predetermined value or more acts on the vehicle body side portion.

The inflator 14 is disposed near the connecting portion between the A pillar (front pillar) 20 and the instrument panel 22, and is connected to the sensor 12 described above. Therefore, when the sensor 12 detects the side collision state, the inflator 14 is activated.

When viewed from the side of the airbag bag body 16 in the vertical direction, a tension line T connecting the front end fixing point and the rear end fixing point of the airbag bag body 16 is traversed in the longitudinal direction in the vertical direction of the airbag bag body. The plurality of non-inflatable portions 24 are formed at predetermined intervals, and these non-inflatable portions 24 form a plurality of inflatable portions that cross the tension line T when the airbag bag is deployed. .

Further, the front end portion 16A of the air bag body 16
Is arranged at the inflator installation position so that the gas ejected from the inflator 14 can flow in. The upper end edge of the intermediate portion 16B is arranged along the A pillar 20 and the roof side rail 28, and the rear end portion 16C is arranged near the C pillar (quarter pillar) 30.

As shown in FIG. 3, the airbag bag body 16
Is folded in a substantially bellows-like shape to be elongated, and is accommodated so as to straddle the A pillar garnish 26 and the vehicle width direction outer side portion 42A of the roof head lining 42.

As shown in FIG. 1, the airbag bag body 16
Is stored between the rail inner panel 40 and the vehicle width direction outer side portion 42A of the roof head lining 42,
The airbag bag body 16 is folded in a direction substantially perpendicular to the vehicle interior side surface of the B pillar garnish 51 (direction of arrow B in FIG. 1). The airbag body 16 is held in a folded state by a belt 52 (see FIG. 3) arranged at a predetermined interval.
In No. 2, when the airbag bag body 16 is deployed, it is easily broken by the deployment and expansion force of the airbag bag body 16.

As shown in FIG. 3, the airbag bag body 16
Mounting portions 16D are formed at the upper end of the airbag so as to be spaced apart from each other at predetermined intervals, and the airbag bag body is fixed by bolts penetrating these mounting portions 16D and fixing means 46 such as nuts screwed onto the bolts. 16 is an A pillar inner panel 48
Also, the rail inner panel 40 is fixed to the vehicle compartment side.

As shown in FIG. 1, the roof head lining 42 is made of resin and is composed of a base material 43 and a skin 45. When the airbag bag body 16 is deployed, Due to the expansion and expansion force, the vehicle width direction outer side portion 42A of the roof head lining 42 is opened toward the vehicle interior as shown by the two-dot chain line in FIG. 1, and the airbag bag body 16 is expanded toward the vehicle interior from this gap. It is like this.
Further, the edge portion 42B of the roof headlining 42 is B
It is engaged with the upper end portion 51A of the pillar garnish 51, and due to the inflation pressure of the airbag bag body 16 when the airbag bag body is deployed, the edge portion 42 of the roof head lining 42 is
The engagement between B and the upper end portion 51A of the B pillar garnish 51 is released.

The B-pillar garnish 51 is made of resin and is composed of a base material 53 and a skin 55, and a pedestal 51B for mounting is erected on the upper back surface (outer surface of the passenger compartment) of the B-pillar garnish 51. Has been done. A clip 56 is locked on the top of the pedestal 51B.
6 is a mounting hole 57 formed in the rail inner panel 40.
It is fixed to. Reference numeral 62 shown in FIG. 1 is a slide plate.

Below the folded air bag body 16, there is provided a jump base 61 as a means for restricting the direction of deployment of the air bag body. The jump base 61 is a metal plate such as iron or an extruded material of resin. It is composed by.
The jump base 61 is located in a region facing the upper end portion 51A of the B pillar garnish 51, preferably from a position where it is overlapped with an assist grip or a card holder attached to the front side of the B pillar 18 in the roof side rail 28 and the B pillar garnish 51. It is arranged in a region reaching the upper end portion 51A.

As shown in FIG. 2, the jump base 61 is made of a plate material that is bent in an L-shaped cross section, and the front and rear mounting portions 61B projectingly formed on the upper end of the vertical wall portion 61A.
Is fixed to the passenger compartment side of the rail inner panel 40 by the fixing means 46 together with the attachment portion 16D of the airbag 16. Also, the jump base 61 is a vertical wall portion 61A.
From the lower end of the B pillar garnish 51 to the upper end 51A
Has a guide wall 61C extending in the direction of
A pair of front and rear plate-like engagement protrusions 64 as vehicle movement restricting means extending in the vehicle front-rear direction are formed at the front end of the guide wall 61C.

As shown in FIG. 1, the engagement protrusion 64 is curved in a U shape toward the outer side in the vehicle width direction and faces the engagement protrusion 64 on the outer side of the engagement protrusion 64 in the vehicle width direction. A flange portion 51C formed on the upper end portion 51A of the B pillar garnish 51 is erected on the portion.

As shown in FIG. 2, the flange portion 51C of the B pillar garnish 51 is formed with a pair of front and rear engaging holes 66 as movement restricting means, and these engaging holes 66 extend in the longitudinal direction. It is a long hole. Also, B
When the upper end portion 51A of the pillar garnish 51 moves slightly toward the vehicle interior (the direction of arrow A in FIG. 2), the engagement hole 66 formed in the flange portion 51C of the B pillar garnish 51,
The engagement protrusions 64 of the jump base 61 are engaged with each other to restrict the movement of the upper end portion 51A of the B pillar garnish toward the vehicle interior. The size relationship between the engagement protrusions 64 and the engagement holes 66 is such that movement of the upper end portion 51A of the B pillar garnish 51A toward the vehicle interior and diagonally forward and backward movement toward the vehicle interior can be reliably regulated. It is set.

Next, the operation of this embodiment will be described.

In this embodiment, when a side impact load of a predetermined value or more is applied to the side portion of the vehicle body, it is determined that the side collision has occurred by the sensor 1
Detected by 2. Therefore, the inflator 14 operates and a predetermined amount of gas is ejected. As a result, the airbag bag body 16 begins to inflate, and the inflated airbag bag body 16 pushes open the pillar garnish 26 of the A pillar 20 and the vehicle width direction outer side portion 42A of the roof head lining 42 while opening the roof side rail 28. Is bulged in a curtain shape from the front side of the vehicle toward the rear side of the vehicle. At this time, the expansion of the airbag bag body 16 is caused by the B pillar 18
During the period from reaching the position near the front side of the vehicle to the position passing the intermediate portion of the B pillar 18 in the vehicle front-rear direction, the airbag bag body 16 extends along the guide wall 61C of the jump base 61,
It expands toward the inside of the vehicle. For this reason, it is possible to prevent the airbag bag body 16 from coming into contact with or being caught in the upper end portion 51A of the B pillar garnish 51.

When the B pillar 18 is deformed during a side impact, the clip 56 is attached to the mounting hole 5 of the rail inner panel 40.
7 A, the upper end portion 51A of the B pillar garnish 51
Tries to move toward the passenger compartment, but when the upper end portion 51A of the B pillar garnish 51 slightly moves toward the passenger compartment (direction of arrow A in FIGS. 1 and 2), the B pillar garnish 51 is moved.
The engagement protrusions 64 of the jump base 61 engage with the engagement holes 66 formed in the flange portion 51C of the base 51, and the movement of the upper end portion 51A of the B pillar garnish 51A toward the vehicle interior is restricted. Therefore, the airbag bag body 16 in the middle of inflating and deploying is not caught on the upper end portion 51A of the B pillar garnish 51,
The airbag bag body 16 can be reliably deployed between the predetermined vehicle side portion and the occupant side portion. In addition, the engagement protrusion 64
It is possible to have a simple structure in which the engaging hole 66 is formed.

Further, in this embodiment, depending on the size relationship between the engagement protrusions 64 and the engagement holes 66, the B pillar garnish upper end portion 51A is moved toward the inside of the vehicle and diagonally to the front and rear of the inside of the vehicle. Can be regulated with certainty.

Next, a second embodiment of the disposition structure of the head protecting airbag according to the present invention will be described with reference to FIGS.

The same members as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 6A, in this embodiment, a metal plate 68 made of iron or the like, which is a separate member from the B pillar garnish 51 and extends in the vehicle front-rear direction, is provided on the upper end portion 51A of the B pillar garnish 51. Is provided.

As shown in FIG. 5, the lower portion 68A of the metal plate 68 is the upper end portion 51 of the B pillar garnish 51.
It is fixed to a mounting portion 51D formed on the back side of A by a fixing means 70 such as a rivet. Engagement holes 66 are formed in the upper portion 68B of the metal plate 68, and the engagement protrusions 64 engage with these engagement holes 66.

Next, the operation of this embodiment will be described.

In this embodiment, in addition to the operation of the first embodiment, since the engaging hole 66 is formed in the metal plate 68 fixed to the B pillar garnish 51, the rigidity of the outer peripheral portion of the engaging hole 66 is increased. be able to. As a result, the engaging force between the engaging hole 66 and the engaging protrusion 64 can be increased, and the outer peripheral portion of the engaging hole 66 can be prevented from being damaged when a large load is applied.

Incidentally, instead of the metal plate 68, FIG.
As shown in (B), both ends 65A of the steel wire 65 are crushed to form through holes, and the through holes are fixed to the attachment portion 51D of the B pillar garnish 51 by fixing means 70 such as rivets. Also good.

Next, a third embodiment of the arrangement structure of the head protecting airbag according to the present invention will be described with reference to FIGS. 7 and 8.

The same members as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 8, in the present embodiment, B
A plate 72, which is a separate member from the B pillar garnish 51, is disposed on the upper end portion 51A of the pillar garnish 51.

As shown in FIG. 7, the plate 72 is composed of a metal plate 74 made of metal such as iron and a coating layer 76 such as PVC covering the metal plate 74. The coating layer 7
6 is not formed. The lower portion 72A of the plate 72 is
It is fixed to a pedestal 51B of the B pillar garnish 51 by a fixing means 70 such as a rivet, and the tip of the upper part of the plate 72 is bent substantially inward of the vehicle to form an engaging projection 72B as a movement restricting means.

As shown in FIG. 8, a downward recessed recess 61D is formed in the middle portion of the guide wall 61C of the jump base 61 in the front-rear direction, and the bottom of the recess 61D is engaged as a movement restricting means. Holes 77 are formed, and these engaging holes 77 are elongated holes extending in the front-rear direction. Further, when the upper end portion 51A of the B pillar garnish 51 is slightly moved toward the vehicle interior (direction of arrow A in FIGS. 7 and 8), B
The engaging projection 72B of the plate 72 fixed to the pillar garnish 51 engages with the engaging hole 77 formed in the jump base 61, and restricts the movement of the upper end portion 51A of the B pillar garnish 51A toward the vehicle interior. There is.

Next, the operation of this embodiment will be described.

In this embodiment, in addition to the operation of the first embodiment, since the engaging projection 72B is formed on the plate 72 made of the metal plate 74 covered with the coating layer 76, the rigidity of the engaging projection 72B is increased. You can As a result, the engagement force between the engagement hole 77 and the engagement protrusion 72 can be increased, and the engagement protrusion 72 can be prevented from being damaged when a large load is applied.

Further, in this embodiment, the engaging hole 7 is formed at the bottom of the recess 61D formed in the guide wall 61C of the jump base 61.
7 is formed, the plate 7 is locked in the engagement hole 77.
The second engagement protrusion 72B and the airbag bag 16 are less likely to interfere with each other. Further, since the engagement protrusion 72B of the plate 72 is covered with the coating layer 76, the airbag bag 16 can be protected from the edge of the metal plate 74.

Next, a fourth embodiment of the arrangement structure of the head protecting airbag according to the present invention will be described with reference to FIGS. 9 and 10.

The same members as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 10, in this embodiment,
At the upper end portion 51A of the B pillar garnish 51, a plate 78 made of metal such as iron is provided as an airbag bag interlocking device that also serves as an airbag bag deployment direction restricting device.

The lower portion 78A of the plate 78 is fixed to the pedestal 51B of the B pillar garnish 51 by a fixing means 7 such as a rivet.
It is fixed by 0, and the upper portion of the plate 78 is an engaging portion 78B. The engaging portion 78B extends so as to wrap around the vehicle cabin outer surface (back surface) 16E of the folded airbag bag 16, and the upper end portion 51A of the B pillar garnish 51 is extended as shown by the two-dot chain line in FIG. When moved slightly toward the vehicle interior, the engaging portion 78B of the plate 78 comes into contact with the vehicle exterior side surface 16E of the airbag bag 16 and moves the airbag bag 16 toward the vehicle interior.
The tip 78C of the engaging portion 78B is folded back so that the edge thereof does not interfere with the airbag bag body 16, and the expanding airbag bag body 16 is provided between the lower portion 78A of the plate 78 and the engaging portion 78B. Guide wall 78D that guides inside the vehicle
Has become.

Next, the operation of this embodiment will be described.

In this embodiment, when the B pillar 18 is deformed at the time of a side collision, the upper end portion 51A of the B pillar garnish 51 tries to move toward the interior of the vehicle (direction of arrow A in FIG. 9).
As shown by the chain double-dashed line in FIG. 9, B pillar garnish 5
When the upper end portion 51A of 1 slightly moves toward the vehicle interior, the engaging portion 78B of the plate 78 contacts the vehicle interior outer surface 16E of the airbag bag 16 and moves the airbag bag 16 toward the vehicle interior. As a result, the positional relationship between the airbag bag body 16 and the upper end portion 51A of the B pillar garnish 51 does not change significantly. Therefore, the airbag bag body 16 in the middle of inflation and deployment
Does not get caught on the upper end portion 51A of the B pillar garnish 51, and the airbag bag body 16 can be deployed toward the vehicle interior of the B pillar garnish 51.

Further, in the present embodiment, the plate 78 provided with the guide wall 78D also serves as a means for restricting the airbag bag deployment direction of the airbag bag 16, so that the plate 78 is added to the upper end portion 51A of the B pillar garnish 51. Only by doing so, the airbag bag body 16 can be more surely deployed toward the vehicle interior of the B pillar garnish 51.

Next, a fifth embodiment of the arrangement structure of the head protecting airbag according to the present invention will be described with reference to FIGS. 11 and 12.

The same members as those in the second embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 12, in the present embodiment,
The guide plate 80 as a means for restricting the direction of deployment of the air bag body is formed of an extruded product made of a soft resin and having a U-shaped cross section, and extends upward along the base portion 80A of the guide plate 80 and the rail inner panel 40. Vertical wall section 8
0B, a plurality of hollow portions 82 extending in the longitudinal direction of the guide plate 80 are extruded and formed. Further, when the airbag bag is deployed, the guide plate 80 is
A guide wall 80C that is bent at a groove 84 formed at the end of the vehicle interior of A and extends along the vehicle width direction outer side portion 42A of the roof head lining 42 expands toward the vehicle interior. .

A pair of front and rear plate-like engagement projections 86, which serve as guide wall interlocking means, extend in the vehicle front-rear direction on the lower surface in the vehicle interior of the base 80A of the guide plate 80.
Are formed.

As shown in FIG. 11, the engaging projection 8
6, the metal plate 68, etc. are used in the second embodiment (FIGS. 5 and 6).
It is the same as (A)).

As shown in FIG. 12, the guide plate 8
The vertical wall portion 80B of 0 has a mounting portion 80 at both upper ends in the front-rear direction.
D is protrudingly formed, and these mounting portions 80D have
Mounting holes 88 and 90 are provided respectively. The front mounting hole 88 is formed with a circular extension 88A through which the fixing means 46 such as a bolt penetrates, and a narrow extending portion 88B is formed forward. The rear mounting hole 90 is provided with a bolt or the like. A narrow extending portion 90B is formed rearward from a circular hole portion 90A through which the fixing means 46 penetrates.

Therefore, the engaging projection 8 of the guide plate 80
When the metal plate 68 as the guide wall interlocking means is engaged with the member 6, and a load is applied to the inside of the vehicle, the fixing means 46 is attached to the front mounting portion 80D of the guide plate 80.
Moves relatively from the circular hole portion 88A of the mounting hole 88 to the extended portion 88B, and in the mounting portion 80D on the rear side of the guide plate 80, the fixing means 46 moves from the circular hole portion 90A of the mounting hole 90 to the extended portion 90B. Move relative. As a result, the front-rear direction intermediate portion of the guide plate 80 is curved toward the vehicle interior, and the upper end portion 51A of the B pillar garnish 51 of the guide plate 80 is formed.
The portion engaged with is moved to the inside of the vehicle together with the airbag bag body 16. The airbag body 16 is stored with a slight margin so that the airbag body 16 can be moved toward the inside of the vehicle.

Next, the operation of this embodiment will be described.

In this embodiment, when the B pillar 18 is deformed at the time of a side collision, the upper end 51A of the B pillar garnish 51 moves toward the vehicle interior, but when the upper end 51A of the B pillar garnish 51 moves slightly toward the vehicle interior. , The engaging hole 6 of the metal plate 68 fixed to the B pillar garnish 51
6 engages with the engagement protrusion 86 of the guide plate 80, and moves the engagement protrusion 86 toward the inside of the vehicle. At this time, in the attachment portion 80D on the front side of the guide plate 80, the fixing means 46 relatively moves from the circular hole portion 88A of the attachment hole 88 to the extended portion 88B, and the attachment portion 80D on the rear side of the guide plate 80.
, The fixing means 46 is the circular hole portion 90A of the mounting hole 90.
To the extended portion 90B. As a result, the middle portion of the guide plate 80 in the front-rear direction is curved toward the vehicle interior, and the upper end portion 5 of the B pillar garnish 51 of the guide plate 80 is bent.
The portion engaged with 1A moves toward the inside of the vehicle together with the airbag bag body 16. For this reason, the airbag bag body 16 in the middle of inflating and deploying the upper end portion 51 of the B pillar garnish 51.
The airbag bag body 16 can be reliably deployed between the predetermined vehicle side portion and the occupant side portion without being caught by A.

Further, in this embodiment, the guide plate 8
The configuration is simple in that the front mounting portion 80D and the rear mounting portion 80D of 0 can be moved relative to the rail inner panel 40.

Next, a sixth embodiment of the disposition structure of the head protecting airbag according to the present invention will be described with reference to FIGS. 13 and 14.

The same members as those in the fifth embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 13, in the present embodiment,
A bellows portion 92 is formed on the base portion 80A of the guide plate 80 so as to extend toward the inside of the vehicle (direction of arrow C in FIG. 13) and is extruded along the longitudinal direction of the guide plate 80.

As shown in FIG. 14, in this embodiment,
The mounting holes 94 and 96 formed in the front and rear mounting portions 80D of the guide plate 80 are circular holes.

Therefore, the engaging projection 8 of the guide plate 80
When the metal plate 68 is engaged with 6 and a load is applied to the inside of the vehicle, the bellows portion 92 of the guide plate 80 extends toward the inside of the vehicle (direction of arrow C in FIG. 13). As a result, the upper end portion 51A of the B pillar garnish 51 of the guide plate 80
The part that is engaged with is moved toward the vehicle interior together with the airbag bag 16.

Next, the operation of this embodiment will be described.

In this embodiment, when the B pillar 18 is deformed at the time of a side collision, the upper end 51A of the B pillar garnish 51 moves toward the vehicle interior, but when the upper end 51A of the B pillar garnish 51 moves slightly toward the vehicle interior. , Engaging holes 6 in the metal plate 68 fixed to the B pillar garnish 51
6 engages with the engagement protrusion 86 of the guide plate 80, and moves the engagement protrusion 86 toward the inside of the vehicle. At this time, the bellows portion 92 of the guide plate 80 extends toward the inside of the vehicle. As a result, the portion of the guide plate 80 engaged with the upper end portion 51A of the B pillar garnish 51 is the airbag bag body 16.
Along with that, it moves toward the inside of the vehicle. Therefore, the airbag bag body 16 in the middle of inflating and deploying is not caught on the upper end portion 51A of the B pillar garnish 51, and the airbag bag body 1
6 can be reliably deployed between the predetermined vehicle side portion and the occupant side portion.

Further, in this embodiment, the guide plate 8
With the bellows portion 92 formed to be 0, the guide wall 80C is simply deformable toward the inside of the vehicle.

Next, a seventh embodiment of the disposition structure of the head protecting airbag according to the present invention will be described with reference to FIGS.

The same members as those in the second embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 16, in this embodiment,
A pair of front and rear plate-like engagement projections 6 as a movement restricting means and a guide wall interlocking means are provided on the jump base 61 and extend in the vehicle front-rear direction.
4 are formed, and a pair of front and rear engagement holes 66 are formed in the metal plate 68 as the guide wall interlocking means.

As shown in FIG. 15, in this embodiment,
The engaging protrusion 64 has a U-shaped cross section, and the tip 64A
Into the engagement hole 66.

As shown in FIG. 17, the distal end portion 64A of the engaging projection 64 has tapered surfaces 64B and 64C in which the width L1 on the distal end side is narrower than the width L2 on the root side, and the width L2 on the root side. Is wider than the width L3 of the engagement hole 66. As a result, as shown by the chain double-dashed line in FIG.
4 is locked to the inner peripheral portion of the engagement hole 66 by tapered surfaces 64B and 64C.

Next, the operation of this embodiment will be described.

In this embodiment, when the B pillar 18 is deformed at the time of a side collision, the clip 56 is disengaged from the mounting hole 57 of the rail inner panel 40, and the upper end portion 51A of the B pillar garnish 51 tends to move toward the vehicle interior. , When the upper end portion 51A of the B pillar garnish 51 moves slightly toward the vehicle interior (direction of arrow A in FIG. 15), the B pillar garnish 5
The engaging projection 66 of the jump base 61 engages with the engaging hole 66 formed in the metal plate 68 fixed to the first mounting portion 51D, and the movement of the upper end 51A of the B pillar garnish 51A toward the vehicle interior is restricted. It Therefore, the airbag bag body 16 in the middle of inflating and deploying the upper end portion 51A of the B pillar garnish 51.
Therefore, the airbag bag body 16 can be reliably deployed between the predetermined vehicle side portion and the occupant side portion without being caught. Further, it is possible to adopt a simple structure in which the engaging protrusion 64 and the engaging hole 66 are simply formed.

Further, in this embodiment, the engagement protrusion 64 is
The tapered surfaces 64B and 64C locally fit into the inner peripheral portion of the engaging hole 66 and are locked in that position. As a result, the engagement state between the two is not easily released, and the movement of the upper end portion 51A of the B pillar garnish 51 toward the vehicle interior can be more reliably restricted. Moreover, the effect can be obtained with a simple configuration in which the engaging projections 64 are formed with the tapered surfaces 64B and 64C.

In this embodiment, the tapered surfaces 64B and 64C are formed on the engaging projection 64, but instead of this, as shown in FIG. 18, the tapered surfaces 64B and 64C formed on the engaging projection 64. The engaging grooves 64D and 64E may be formed at the root of the to form a key shape. In this case, as shown by the chain double-dashed line in FIG.
Since E engages with the outer peripheral portion of the engagement hole 66, the engagement relationship between the two can be maintained more reliably.

Next, an eighth embodiment of the arrangement structure of the head protecting airbag according to the present invention will be described with reference to FIGS. 19 and 20.

The same members as those in the second embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 20, in the present embodiment, a jump base 61 as a means for restricting the direction of deployment of an air bag body is used.
In addition, the notch 67 extending over the vertical wall portion 61A and the guide wall 61C.
Are formed at a predetermined interval in the front-rear direction, and the boundary between the vertical wall portion 61A and the guide wall 61C is a fragile portion 61E. Therefore, when the airbag bag body 16 is expanded and inflated, as shown in FIG. 21, due to the inflation pressure of the airbag bag body 16, the fragile portion 61E is the starting point and the guide wall 6
1C swings substantially downward (direction of arrow D in FIG. 21).

As shown in FIG. 19, a flange portion 51C formed on the upper end portion 51A of the B pillar garnish 51.
An extending portion 51E is formed at the upper end of the extending portion 51E toward the outside of the vehicle compartment, and a pair of front and rear engaging holes 66 as movement limiting means are formed in the extending portion 51E. Therefore, when the guide wall 61C moves slightly downward (in the direction of arrow D in FIG. 19), as shown in FIG. 21, the engagement hole 66 formed in the extended portion 51E of the B pillar garnish 51 is inserted into the jump base 61. The engagement protrusions 64 are engaged with each other to restrict the movement of the upper end portion 51A of the B pillar garnish toward the vehicle interior. The size relationship between the engagement protrusions 64 and the engagement holes 66 is such that movement of the upper end portion 51A of the B pillar garnish 51A toward the vehicle interior and diagonally forward and backward movement toward the vehicle interior can be reliably regulated. It is set.

Next, the operation of this embodiment will be described.

In the present embodiment, when the airbag bag body 16 is expanded and inflated, as shown in FIG. 21, the fragile portion 61E is used as the starting point by the inflation pressure of the airbag bag body 16,
The guide wall 61C swings substantially downward (direction of arrow D in FIG. 21). As a result, the extended portion 5 of the B pillar garnish 51
The engagement protrusions 64 of the jump base 61 are engaged with the engagement holes 66 formed in 1E to limit the movement of the upper end portion 51A of the B pillar garnish 51A toward the inside of the vehicle. That is, in this embodiment,
Since the engagement protrusion 64 is engaged with the engagement hole 66 by utilizing the expansion force of the airbag bag 16, the amount of movement of the B pillar garnish upper end portion 51A toward the vehicle interior can be reduced.

Further, since the amount of movement of the B pillar garnish upper end portion 51A toward the vehicle interior can be reduced in this way,
It is not necessary to firmly fix the upper end portion 51A of the B pillar garnish to the rail inner panel 40 (B pillar inner panel), and the assembling property of the B pillar garnish 51 is not impaired.

In this embodiment, the fragile portion 61E is formed by the notch 67 extending over the vertical wall portion 61A and the guide wall 61C, but instead of this, as shown in FIG. 22, an integral hinge is used. By forming the resin plate material 81 having the fragile portion 81A by insight molding and connecting the vertical wall portion 61A and the guide wall 61C, the guide wall 61 is started from the fragile portion 81A by the inflation pressure of the airbag bag 16.
The configuration may be such that C swings substantially downward (direction of arrow D in FIG. 22).

Next, a ninth embodiment of the disposition structure of the head protecting airbag of the present invention will be described with reference to FIGS. 23 to 26.

The same members as those in the eighth embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 24, in this embodiment,
Jump base 6 as means for restricting the direction of airbag bag deployment
A rectangular notch 69 is formed in the first guide wall 61C, and an engaging plate 71 forming a part of the jump base 61 is disposed at a portion facing the notch 69. Both end portions 71B in the longitudinal direction of the guide wall portion 71A of the engagement plate 71 are welded to the upper surface of the guide wall 61C, respectively, and the notch 7 is formed in the vicinity of both end portions 71B from both sides in the width direction.
1C is a fragile portion 71D.

Therefore, when the airbag bag body 16 is inflated and inflated, the inflation pressure of the airbag bag body 16 causes the air bag body 16 shown in FIG.
As shown by the chain double-dashed line in 6, the fragile portion 71D is bent,
The guide wall portion 71A of the engagement plate 71 is the jump base 61.
It is configured to move relatively downward with respect to (in the direction of arrow D in FIG. 25).

As shown in FIG. 24, the engaging plate 71
A pair of front and rear plate-shaped engagement projections 75 as a movement restricting means extending in the vehicle front-rear direction are formed at the front end portion of the guide wall portion 71A. In addition, the flange portion 5 formed on the upper end portion 51A of the B pillar garnish 51
An extension portion 51E is formed at the upper end of 1C toward the outside of the vehicle compartment, and a pair of front and rear engagement holes 66 as movement limiting means are formed in the extension portion 51E. Therefore,
When the engagement projection 75 moves slightly downward (in the direction of arrow D in FIG. 23) together with the guide wall portion 71A of the engagement plate 71, as shown in FIG. 25, the B pillar garnish 51.
The engaging projection 66 is formed in the engaging hole 66 formed in the extended portion 51E of the
Engage to limit the movement of the upper end portion 51A of the B pillar garnish toward the vehicle interior. Note that the size relationship between the engagement projection 75 and the engagement hole 66 is such that movement of the B pillar garnish upper end portion 51A toward the vehicle interior and diagonally forward and backward movement toward the vehicle interior can be reliably regulated. It is set.

Next, the operation of this embodiment will be described.

In this embodiment, when the airbag bag body 16 is expanded and inflated, the engaging pressure of the engagement plate 7 is increased by the inflation pressure of the airbag bag body 16 as shown by the chain double-dashed line in FIG.
The fragile portion 71D of No. 1 is bent, and the engagement projection 75 moves together with the guide wall portion 71A of the engagement plate 71 substantially downward (direction of arrow D in FIG. 25) with respect to the jump base 61. As a result, as shown in FIG. 25, the engagement protrusions 75 of the guide wall portion 71A of the engagement plate 71 engage with the engagement holes 66 formed in the extending portion 51E of the B pillar garnish 51,
The movement of the upper end portion 51A of the B pillar garnish to the inside of the vehicle is restricted. That is, in the present embodiment, the airbag bag body 1
Since the engaging projection 75 is engaged with the engaging hole 66 by utilizing the expansion force of 6, the amount of movement of the upper end portion 51A of the B pillar garnish 51A toward the vehicle interior can be further reduced.

Further, since the amount of movement of the upper end portion 51A of the B pillar garnish toward the passenger compartment can be reduced in this way,
It is not necessary to firmly fix the upper end portion 51A of the B pillar garnish to the rail inner panel 40, and the assembling property of the B pillar garnish 51 is not impaired.

Next, a tenth embodiment of the disposition structure of the head protecting airbag of the present invention will be described with reference to FIGS. 27 to 29.

The same members as those in the eighth embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 28, in this embodiment,
Jump base 6 as means for restricting the direction of airbag bag deployment
Projection portions 61F are formed at both front and rear end portions of the vertical wall portion 61A of No. 1, and the jump base 6 is formed by these projection portions 61F.
The engagement plate 73 that constitutes one guide wall is supported. That is, as shown in FIG. 29, the engagement plate 73
Both end portions 73B of the vertical wall portion 73A are substantially vertical with respect to the vertical wall portion 61A of the jump base 61 by the hemming process with the protruding portion 61F (the arrow E direction in FIG. 27 and the opposite direction).
It is possible to move a predetermined amount to.

As shown in FIG. 28, the engaging plate 73
From the lower end of the vertical wall portion 73A of the B pillar garnish 51
Wall 73C extending toward the upper end 51A of the guide wall
Is formed, and at the tip of this guide wall 73C,
A pair of front and rear plate-like engagement projections 79 are formed in the middle of the front-rear direction as movement restricting means and extend in the front-rear direction of the vehicle.

Therefore, when the airbag bag body 16 is deployed and inflated, the hemming process between the vertical wall portion 73A of the engagement plate 73 and the protruding portion 61F of the jump base 61 is performed by the inflation pressure of the airbag bag body 16. The engaging plate 7
3 is slidable substantially downward (in the direction of arrow E in FIG. 27).

As shown in FIG. 28, a flange portion 51C formed on the upper end portion 51A of the B pillar garnish 51.
An extending portion 51E is formed at the upper end of the extending portion 51E toward the outside of the vehicle compartment, and a pair of front and rear engaging holes 66 as movement limiting means are formed in the extending portion 51E. Therefore, when the engagement plate 73 is slid slightly downward (in the direction of arrow E in FIG. 27), the engagement hole 66 formed in the extending portion 51E of the B pillar garnish 51 is moved to the engagement hole 66 as shown by the chain double-dashed line in FIG. , The engaging projection 79 of the engaging plate 73 is engaged, and
The upper end 51A of the pillar garnish is restricted from moving toward the passenger compartment. Note that the size relationship between the engagement projection 79 and the engagement hole 66 is such that movement of the upper end portion 51A of the B pillar garnish 51A toward the vehicle interior and diagonally forward and backward movement toward the vehicle interior can be reliably regulated. It is set.

Next, the operation of this embodiment will be described.

In the present embodiment, when the airbag bag body 16 is deployed and inflated, the engagement plate 73 is substantially below the vertical wall portion 61A of the jump base 61 by the inflation pressure of the airbag bag body 16 (see FIG. Slide in the direction of arrow E). As a result, as shown by the chain double-dashed line in FIG. 27, the guide wall 73C moves downward, and the engaging plate 7 is inserted into the engaging hole 66 formed in the extending portion 51E of the pillar garnish 51.
The engagement protrusion 79 of No. 3 engages and restricts the movement of the upper end portion 51A of the B pillar garnish toward the vehicle interior. That is, in the present embodiment, since the engagement protrusions 73 are engaged with the engagement holes 66 by using the expansion force of the airbag bag 16, the amount of movement of the B pillar garnish upper end portion 51A toward the vehicle interior is reduced. It can be made smaller.

In addition, since the amount of movement of the upper end portion 51A of the B pillar garnish toward the passenger compartment can be reduced in this way,
It is not necessary to firmly fix the upper end portion 51A of the B pillar garnish to the rail inner panel 40, and the assembling property of the B pillar garnish 51 is not impaired.

In this embodiment, the engaging plate 73 is substantially below the vertical wall portion 61A of the jump base 61 (see FIG. 2).
7 is slidable in the direction of arrow E), the upper end 51A of the B pillar garnish 51 is assembled to the rail inner panel 40. It is also possible to make it the structure made to engage.

In the above, the present invention has been described in detail with respect to specific embodiments, but the present invention is not limited to such embodiments, and various other embodiments within the scope of the present invention. It is obvious to a person skilled in the art that For example, in each of the embodiments, the folded airbag bag 16 is held in the folded state by the belt 52 (see FIG. 3), but instead of the belt 52, a wrap material,
The airbag bag may be held in a folded shape by a case or the like.

Further, the head protection airbag bag disposing structure of the present invention is also applicable to an airbag device in which an inflator is disposed on the vehicle rear side, for example, the C pillar 30, and in this case, Jump stand 61 to B pillar garnish 5
1 is located in a region facing the upper end portion 51A of the B pillar 1, preferably in a region from the position where the roof side rail 28 is overlapped with an assist grip or the like disposed on the rear side of the B pillar 18 to the upper end portion 51A of the B pillar garnish 51. Set up. Further, the present invention can be applied to front and rear seat head protection airbag devices that can protect the heads of not only front passengers but also rear passengers.

[0126]

According to the first aspect of the present invention, the head protecting airbag bag has a structure in which the airbag bag in the middle of deployment is B
It has an excellent effect that the airbag bag body can be surely deployed without being caught on the upper end portion of the pillar garnish and the configuration can be simplified .

In the arrangement structure of the head protection airbag bag body according to the second aspect of the present invention, the airbag bag body in the middle of deployment is B-pi
The airbag does not get caught on the upper end of the lagarnish.
It has an excellent effect that the bag can be surely deployed and the configuration can be simplified .

According to the third aspect of the structure for disposing the head protecting airbag of the present invention, the airbag bag in the middle of deployment does not catch on the upper end of the B-pillar garnish, and the airbag bag is securely deployed. It has an excellent effect that it is possible and the configuration is simple .

[0129]

[0130]

The arrangement structure of the head protecting airbag of the present invention according to claim 4 has an excellent effect that the structure can be simplified in addition to the effect according to claim 3 .

The arrangement structure of the head protection airbag according to the present invention of claim 5 has an excellent effect that the structure can be simplified in addition to the effect of claim 3 .

According to a sixth aspect of the present invention, in addition to the effect of the first or third aspect of the invention, the head protection airbag body according to the present invention has a structure in which the upper end portion of the B pillar garnish is directed toward the interior of the vehicle. It has an excellent effect that the movement of the can be more surely restricted and an effect can be obtained with a simple configuration.

[0134] mounting structure of the head-protecting air bag body according to the invention of claim 7, wherein, in addition to the effects of any one of claims 1 or 3, that can be more reliably maintain the engagement between Has excellent effect.

In addition to the effects of the first aspect, the arrangement structure of the head protection airbag of the present invention according to the eighth aspect provides
This has an excellent effect that the amount of movement of the upper end portion toward the vehicle interior can be reduced by utilizing the airbag bag inflation force without impairing the assembling property of the B pillar garnish.

In addition to the effect of the first aspect, the arrangement structure of the head protection airbag body according to the ninth aspect of the present invention provides:
This has an excellent effect that the amount of movement of the upper end of the B pillar garnish toward the vehicle interior can be further reduced by utilizing the inflation force of the airbag bag without impairing the assembling property of the B pillar garnish.

According to the tenth aspect of the present invention, there is provided the head protective airbag body arranging structure, in addition to the effect of the first aspect, without impairing the assembling property of the B pillar garnish.
The amount of movement of the upper end portion of the B-pillar garnish toward the vehicle interior can be further reduced by utilizing the expansion force of the airbag bag body, and the engagement protrusion of the airbag bag deployment direction regulating means can be preliminarily provided on the upper end portion of the B-pillar garnish. It has an excellent effect that it can be engaged with the engaging hole.

[0138]

[Brief description of drawings]

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

FIG. 2 is a perspective view of the upper end of the B-pillar garnish of the vehicle interior to which the head protection airbag body disposition structure according to the first embodiment of the present invention is applied, as seen from a vehicle interior side obliquely front side. is there.

FIG. 3 is a schematic side view showing a stored state of an airbag bag on a side surface on a driver's seat side of a vehicle compartment to which the head protection airbag bag disposition structure according to the first embodiment of the present invention is applied. .

FIG. 4 is a schematic side view showing a state where the airbag bag body has been completely deployed on the side surface on the driver's seat side of a vehicle compartment to which the arrangement structure for the head protection airbag bag body according to the first embodiment of the present invention is applied. is there.

FIG. 5 is a cross-sectional view corresponding to FIG. 1 in the arrangement structure of the head protection airbag body according to the second embodiment of the present invention.

FIG. 6A is a front view of the inside of the vehicle showing the upper end of the B-pillar garnish of the vehicle interior to which the head protection airbag bag disposition structure according to the second embodiment of the invention is applied; FIG. 9B is a perspective view showing the upper end portion of the B-pillar garnish of the vehicle compartment to which the disposition structure of the head protection airbag according to the modified example of the second embodiment of the present invention is applied. It is the perspective view seen from diagonally inside front.

FIG. 7 is a cross-sectional view corresponding to FIG. 1 in the arrangement structure of the head protection airbag body according to the third embodiment of the present invention.

FIG. 8 is a perspective view of an upper end portion of a B-pillar garnish of a vehicle compartment to which a head protection airbag body disposition structure according to a third embodiment of the present invention is applied, as seen from a diagonally front side of the vehicle interior. is there.

FIG. 9 is a sectional view corresponding to FIG. 1 in the arrangement structure of the head protection airbag according to the fourth embodiment of the present invention.

FIG. 10 is a perspective view showing the upper end of the B-pillar garnish of the vehicle interior to which the head protecting airbag structure according to the fourth embodiment of the present invention is applied, as seen from the vehicle interior side diagonally front. is there.

FIG. 11 is a sectional view corresponding to FIG. 1 in the arrangement structure of the head protection airbag bag according to the fifth embodiment of the present invention.

FIG. 12 is a perspective view of an upper end portion of a B-pillar garnish of a vehicle compartment to which a head protection airbag body disposition structure according to a fifth embodiment of the present invention is applied, as seen from a diagonally front side of the vehicle interior. is there.

FIG. 13 is a cross-sectional view corresponding to FIG. 1 in an arrangement structure of a head protection airbag bag according to a sixth embodiment of the present invention.

FIG. 14 is a perspective view of the upper end portion of the B-pillar garnish of the vehicle interior to which the head protection airbag body disposition structure according to the sixth embodiment of the present invention is applied, as seen from an obliquely front inside of the vehicle interior. is there.

FIG. 15 is a cross-sectional view corresponding to FIG. 1 in the arrangement structure of the head protection airbag according to the seventh embodiment of the present invention.

FIG. 16 is a perspective view of the upper end portion of the B-pillar garnish of the vehicle interior to which the head protection airbag body disposition structure according to the seventh embodiment of the present invention is applied, as seen from an obliquely front side of the vehicle interior. is there.

FIG. 17 is an enlarged cross-sectional view taken along line 17-17 of FIG.

FIG. 18 is a cross-sectional view corresponding to FIG. 17 in the arrangement structure of the head protection airbag bag according to the modified example of the seventh embodiment of the present invention.

FIG. 19 is a sectional view corresponding to FIG. 1 in the arrangement structure of the head protection airbag body according to the eighth embodiment of the present invention.

FIG. 20 is a perspective view of the upper end of the B-pillar garnish of the vehicle compartment to which the head protecting airbag structure according to the eighth embodiment of the present invention is applied, as seen from an obliquely front side of the vehicle interior. is there.

FIG. 21 is an operation explanatory view of the arrangement structure of the head protection airbag bag according to the eighth embodiment of the present invention.

FIG. 22 is a cross-sectional view corresponding to FIG. 19 in the arrangement structure of the head protection airbag bag according to the modification of the eighth embodiment of the present invention.

FIG. 23 is a cross-sectional view corresponding to FIG. 1 in the disposition structure of the head protection airbag bag according to the ninth embodiment of the present invention.

FIG. 24 is a perspective view of the upper end of the B-pillar garnish of the vehicle interior to which the head protecting airbag body disposition structure according to the ninth embodiment of the invention is applied, as seen from the vehicle interior side diagonally front. is there.

FIG. 25 is an operation explanatory view of the arrangement structure of the head protection airbag bag according to the ninth embodiment of the present invention.

26 is an enlarged cross-sectional view taken along the line 26-26 of FIG.

FIG. 27 is a sectional view corresponding to FIG. 1 in the arrangement structure of the head protection airbag according to the tenth embodiment of the present invention.

FIG. 28 is a perspective view of the upper end portion of the B-pillar garnish of the vehicle interior to which the head protecting airbag structure according to the tenth embodiment of the present invention is applied, as seen from the vehicle interior side obliquely front. is there.

29 is an enlarged sectional view taken along the line 29-29 in FIG. 28.

FIG. 30 is a cross-sectional view substantially corresponding to FIG. 1, showing an upper end portion of a B-pillar garnish in a vehicle compartment to which a head protection airbag bag arranging structure according to a conventional embodiment is applied.

[Explanation of symbols]

10 Head Protection Airbag Device 12 Sensor 14 Inflator 16 Airbag Bag 18 B Pillar 20 A Pillar 28 Roof Side Rail 40 Rail Inner Panel 51 B Pillar Garnish 51A B Pillar Garnish Upper End 61 Jump Base (Airbag Bag Deployment) Direction control means) 61C Jump base guide wall 61E Jump base weakened portion 64 Engagement projection (movement restriction means) 64B Engagement projection taper surface 64C Engagement projection taper surface 64D Engagement projection engagement groove 64E Engagement Engagement groove 66 of the protrusion 67 Engagement hole (movement restriction means) 67 Notch 68 Metal plate 71 Engagement plate 71D Fragile portion 72 of the engagement plate Plate 72B Engagement projection (movement restriction means) 73 Engagement plate 75 Engagement projection ( Movement restricting means) 77 Engagement hole (movement restricting means) 78 Plate (airbag Body interlocking means, airbag bag deployment direction regulating means) 78B Plate engagement portion 78D Plate guide wall 79 Engagement protrusion (movement limiting means) 80 Guide plate (airbag bag deployment direction regulating means) 80C Guide plate Guide wall 81 Resin plate material 81A Fragile portion of resin plate material 86 Engaging projection (guide wall interlocking means) 88 Mounting hole 90 Mounting hole 92 Bellows portion

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Norio Urushi, 1 Toyota Town, Toyota City, Aichi Prefecture, Toyota Motor Co., Ltd. (56) Reference JP-A-10-138858 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B60R 21/22 B60R 21/20 B62D 25/04 B60R 13/02 B60R 21/16

Claims (10)

(57) [Claims] 1. A structure for arranging a head-protecting airbag bag body that expands in a curtain shape at least along a roof side rail, wherein the head side airbag is arranged on a roof side rail near an upper end of a B pillar garnish, An airbag bag deployment direction regulating means having a guide wall extending toward an upper end portion of the garnish, and an engagement projection formed on one of the B pillar garnish upper end portion and the airbag bag deployment direction regulating means. And an engaging hole formed on the other side and into which the engaging protrusion engages, and when the upper end portion of the B pillar garnish slightly moves toward the vehicle interior, the both are engaged with each other so that the B pillar garnish And a pair of movement restricting means for restricting the movement of the upper end of the vehicle toward the interior of the vehicle, and the disposition structure of the head protection airbag body. Structure. 2. A structure for arranging a head-protecting airbag bag body that expands in a curtain shape at least along a roof side rail, wherein the airbag bag body is provided only at an upper end portion of the B pillar garnish, and the airbag bag body is provided inside the vehicle. It is composed of a plate having a guide wall that guides to the outside of the passenger compartment of the airbag and an extension portion that wraps around the outside surface of the passenger compartment of the airbag. An arrangement structure for a head protection airbag bag, comprising an airbag bag interlocking means for moving the airbag bag toward the interior of the vehicle. 3. An arrangement structure of a head-protecting airbag bag body that expands in a curtain shape at least along a roof side rail, wherein the head pillar airbag is arranged on a roof side rail adjacent to an upper end portion of a B pillar garnish. An airbag bag deployment direction regulating means having a guide wall extending toward an upper end portion of the garnish, and an engagement projection formed on one of the B pillar garnish upper end portion and the airbag bag deployment direction regulating means. And an engaging hole formed on the other side and into which the engaging protrusion engages, and when the upper end portion of the B pillar garnish slightly moves toward the vehicle interior, the both are engaged with each other so that the B pillar garnish A guide wall connection for moving the guide wall of the airbag bag deployment direction regulating means in conjunction with the movement of the upper end of the airbag toward the vehicle interior. Mounting structure of the head-protecting air bag body, characterized in that it comprises a means. 4. The head protection airbag bag arrangement according to claim 3, wherein the airbag bag deployment direction regulating means is attached to the roof side rail so as to be deformable toward the interior of the vehicle. Construction structure. 5. The guide wall of the airbag bag deployment direction regulating means is deformable toward the vehicle interior in conjunction with the movement of the upper end portion of the B pillar garnish toward the vehicle interior. The structure for disposing the head protection airbag bag according to claim 3. 6. The engaging projection has a taper surface having a width on a tip side narrower than a width on a root side, and is locked in the engagement hole by the taper surface. 3. The structure for disposing the head protection airbag bag according to item 3. 7. The engagement protrusion has a key shape in which a width on a tip side is narrower than a width on a root side and has a tapered surface, and an engagement groove is formed in a root portion. 1 or 3
The arrangement structure of the head protection airbag body described. 8. The movement limiting means includes an engagement protrusion formed on the airbag bag deployment direction regulating means, and the B
The airbag bag body deployment direction regulating means at the time of inflating and deploying the airbag bag body, which is composed of an engagement hole formed at the upper end of the pillar garnish, and which forms a weak portion in the airbag bag body deployment direction regulating means. 2. The head protection airbag bag body arranging structure according to claim 1, wherein said guide wall is deformed downward from said weakened portion as a starting point so that said engaging projection is engaged with said engaging hole. . 9. The movement restricting means is formed on an engaging plate having an engaging protrusion provided so as to be relatively movable downward with respect to the airbag bag deployment direction restricting means, and on an upper end portion of the B pillar garnish. 7. The engaging plate is configured to be engaged with the engaging hole by moving the engaging plate downward by the expansion force of the airbag body. The structure for arranging the head protection airbag bag according to 1. 10. The movement restricting means comprises an engaging projection formed on the airbag bag deployment direction restricting means and an engaging hole formed on an upper end portion of the B pillar garnish, and The head protection airbag bag arranging structure according to claim 1, wherein the guide wall of the airbag bag deployment direction regulating means is slidable in a vertical direction by a predetermined amount.