JP3440904B2 - Mounting structure for side collision airbag sensor - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side impact airbag sensor mounting structure, and more particularly to a side impact airbag sensor mounting structure for detecting a side impact rearward of a vehicle.

[0002]

2. Description of the Related Art Conventionally, as an example of a mounting structure of an airbag sensor for a side impact applied to a vehicle such as an automobile, Japanese Patent Laid-Open No. Hei 1 (1999) -1999
The structure shown in 0-59119 is known.

As shown in FIG. 11, this Japanese Unexamined Patent Publication No. 10-
In the mounting structure of the side impact airbag sensor disclosed in Japanese Patent No. 59119, the door hinge 1 in the center pillar 100 in which the load is likely to be directly applied even when the side surface of the vehicle body collides sideways with the pole.
The airbag sensor 104 is provided inside the mounting portion 100A of 02.
Is provided, and the operation of the airbag device is controlled based on the detection signal from the airbag sensor 104. That is, in this side impact airbag sensor mounting structure, for example, when the vehicle side impacts on the pole, the pole impacts the vehicle from the vehicle diagonally forward from the front side door or the rocker below it. When these are pressed by the pole and instantaneously move to the inside of the vehicle compartment, the acceleration generated in the airbag sensor 104 can be quickly detected by moving the center pillar 100 to the inside of the vehicle compartment.

[0004]

However, in a vehicle equipped with at least a rear seat airbag device, the rear side door and the rocker below the rear side door are installed in order to reliably protect the occupant seated in the rear seat. It is necessary to detect the side impact promptly even if the side impact occurs on the pole, or if the quarter pillar or the wheel house part side impacts on the pole. Since the side collision position and the position of the airbag sensor 104 arranged on the center pillar 100 are apart from each other, the side collision detection time by the airbag sensor 104 becomes long. As a configuration to improve this, it is considered to additionally set an airbag sensor near the rear wheel house on the inside of the vehicle, but in such a configuration, the pole is considered to have a relatively low rigidity. When you crash into the rear wheel house,
Since the rear wheel house is easily deformed, the acceleration at the time of a side collision cannot be stably transmitted to the airbag sensor. On the other hand, if the entire rear wheel house is reinforced and the rigidity is increased, the weight is increased and, even if the rear wheel house collides with the pole at a comparatively low speed, the acceleration at the time of the side collision is transmitted to the airbag sensor. There is a possibility that the air bag device is transmitted and the so-called off condition cannot be satisfied.

In consideration of the above facts, the present invention has a side collision airbag sensor mounting structure capable of efficiently detecting a side collision while satisfying the off condition when the wheel house side collision occurs with the pole. The purpose is to obtain.

[0006]

According to a first aspect of the present invention, there is provided a structure for mounting an airbag sensor for a side collision of a vehicle equipped with a rear seat airbag device for protecting at least a passenger in a rear seat at the time of a side collision. A sensor disposed in the rear wheel house portion at the rear side door opening and a vehicle body outer side wall portion of the rear wheel house portion with a predetermined clearance, and in the event of a side collision, the rear wheel house portion An acceleration transmission member that transmits acceleration to the sensor by abutting on the outer side wall of the vehicle body is provided.

Therefore, when the rear wheel house part collides with the pole at a high speed, the clearance between the vehicle body outer side wall part of the rear wheel house part and the acceleration transmitting member is easily lost, so that the rear wheel house part outside the vehicle body. The wall portion and the acceleration transmission member come into immediate contact with each other. As a result, the acceleration at the time of a side collision can be quickly transmitted to the sensor via the vehicle body outer side wall portion of the rear wheel house portion and the acceleration transmission member. Therefore, the side collision of the wheel house portion with the pole can be detected early and reliably. On the other hand, when the rear wheel house part collides with the pole at a relatively low speed, the clearance between the outer wall part of the rear wheel house part and the acceleration transmission member does not completely disappear. The wall portion and the acceleration transmission member do not come into contact with each other. As a result, the acceleration at the time of a side collision is not transmitted to the sensor via the acceleration transmission member. Therefore, unnecessary operation of the airbag device can be prevented. That is, when the wheel house section collides with the pole, the side collision can be efficiently detected while satisfying the off condition.

According to a second aspect of the present invention, in the mounting structure for the side impact airbag sensor according to the first aspect, the sensor is arranged substantially on the extension line of the acceleration transmitting wall portion of the acceleration transmitting member. Characterize.

Therefore, in addition to the contents of the first aspect, when the rear wheel house portion collides with the pole at a high speed and the clearance between the vehicle body outer side wall portion of the rear wheel house portion and the acceleration transmitting member disappears, Since the acceleration transmitting wall portion of the acceleration transmitting member abuts the portion where the sensor is provided, the acceleration at the time of a side collision can be transmitted to the sensor more quickly.

According to a third aspect of the present invention, in the structure for mounting the airbag sensor for side collision according to the first or second aspect, the acceleration transmitting member is a vehicle body outer side wall of a rear wheel house portion. And a fixed-side flange formed on a free end facing the section with a predetermined clearance, and an area of the horizontal wall is larger than that of the fixed-side flange.

Therefore, in addition to the contents of either claim 1 or claim 2, the rear wheel house part collides with the pole at a high speed, and the vehicle body outer side wall part of the rear wheel house part and the acceleration transmitting member. When the clearance is lost, the lateral wall portion formed at the free end of the acceleration transmitting member instantaneously and reliably abuts the vehicle body outer side wall portion of the rear wheel house portion, and the lateral wall portion larger than the fixed flange is used. The received acceleration can be locally concentrated and transmitted to the site where the sensor is arranged via the fixed flange.
Therefore, the side collision can be detected more quickly and accurately.

According to a fourth aspect of the present invention, in the side impact airbag sensor mounting structure according to the first aspect, the acceleration transmitting member is a fixing member for fixing the sensor bracket. .

Therefore, in addition to the contents of claim 1,
Since the fixing member for fixing the existing sensor bracket is also used as the acceleration transmitting member, it is not necessary to provide a new acceleration transmitting member, so that the number of parts can be reduced and the cost can be reduced. Further, adjustment for each vehicle can be easily performed only by changing the fixing member for fixing the sensor bracket.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of a side impact airbag sensor mounting structure 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 inner direction.

As shown in FIG. 4, the airbag device 10 according to the present embodiment has sensors 12, 14 for detecting a side collision state, an inflator 16 for ejecting gas when activated, and an airbag bag body. 18 is a main component. The front sensors 12 are provided near the lower ends of the left and right center pillars (B pillars) 20, respectively, and are accelerations that detect a side collision state when a side collision load of a predetermined value or more acts on the vehicle side portion. It is composed of sensors. Further, the rear sensor 14 is arranged at the joint between the rocker 24 and the rear wheel house 26 in the left and right rear side door openings 18, and when a side impact load of a predetermined value or more acts on the vehicle body side portion. It is composed of an acceleration sensor that detects a side collision state.

As shown in FIG. 3, the rear portion of the rocker 24 is composed of a rocker inner rear 30 and a rocker outer rear 32, and has a closed sectional structure extending in the vehicle front-rear direction. A flange 30A formed on the upper portion of the rocker inner rear 30 and a flange 32A formed on the upper portion of the rocker outer rear 32 are joined together, and sensor mounting holes (not shown) are formed at the rear ends of the flanges 30A and 32A. Has been drilled. A flange 30B is formed at the rear end edge of the rocker inner rear 30, and a flange 32D is also formed at the rear end edge of the rocker outer rear 32.

The rear wheel house 26 is composed of a wheel house inner 40 and a wheel house outer 42, and forms a wheel accommodating portion 44 extending in an arch shape. The flange 40A formed on the vehicle width direction outer end of the wheel house inner 40 has a flange 42A formed on the vehicle width direction inner end of the wheel house outer 42.
A is joined. A sensor mounting hole (not shown) is formed in the front end portion of the flange 40A of the wheel house inner 40, and this sensor mounting hole is also formed in the flange 42A of the wheel house outer 42.
The upper end edge of the flange 30B in the rocker inner rear 30 is the front lower end edge 4 of the wheel house inner 40.
The flange 32D of the rocker outer rear 32 is joined to the front lower portion 42B of the wheel house outer 42.

The sensor 14 has a long plate-shaped sensor bracket 50 having a high rigidity, and the sensor bracket 5.
The sensor main body 51 is fixed to the central portion of 0, and is connected to the control circuit by a harness (not shown). Mounting holes (not shown) are formed in the front end portion and the rear end portion of the sensor bracket 50, and the bolts 56 inserted from inside the vehicle width direction into these mounting holes,
The sensor brackets 50 are fixed to the rocker 24 and the rear wheel house 26 by 58, respectively.

Further, as shown in FIG. 4, the front end portion 18A of the air bag body 18 is arranged at the inflator installation position so that the gas ejected from the inflator 16 flows in, and the front end portion 18A of the intermediate portion 18B. The upper edge is arranged along the front pillar 60 and the roof side rail 62,
The rear end portion 18C is arranged near the lower portion of the quarter pillar (C pillar) 64. That is, the airbag bag body 18 of the airbag device 10 of the present embodiment protects the front and rear seat occupants 66 and 68, respectively, in the event of a side collision, as indicated by the chain double-dashed line in FIG.

The airbag bag body 18 is folded in a substantially bellows shape in a substantially vertical direction to be elongated, and then extends over the front pillar garnish, the vehicle width direction outer side portion of the roof head lining and the quarter pillar garnish. Is housed.

As shown in FIG. 2, the rocker outer 3
An acceleration transmission member 70 is arranged at a connecting portion between the wheel housing outer 42 and the wheel house outer 42. The acceleration transmission member 70 is a long member arranged across the rocker outer rear 32 and the wheel house outer 42. Has become. Flange 70B and 70C are formed in the lower portion 70A of the acceleration transmission member 70, and the flange 70B is the rocker outer rear 3.
The flange 70C is joined to the rear end of the upper wall 32C of the rocker outer rear 32 at the upper rear end of the vertical wall 32B. Further, the upper portion 70 of the acceleration transmission member 70
The flange 70E formed on D is joined to the flange 42A of the wheel house outer 42.

As shown in FIG. 1, the acceleration transmission member 70.
The cross-sectional shape in the direction intersecting with the longitudinal direction of is a L-shape composed of a front wall portion 70F and a lateral wall portion 70G.
The front wall portion 70F as an acceleration transmission wall portion of the acceleration transmission member 70 is disposed substantially along the vehicle width direction, and the sensor main body 51 is provided on the extension line S of the front wall portion 70F toward the inside in the vehicle width direction. Is provided. The lateral wall portion 70G is formed at the vehicle width direction outer end of the front wall portion 70F toward the rear of the vehicle body.

A predetermined portion is provided between the portion 72A of the outer side wall portion of the rear wheel house 26 facing the lateral wall portion 70G of the acceleration transmitting member 70 and the lateral wall portion 70G of the acceleration transmitting member 70. A clearance L is formed. Further, when the rear portion of the rear side door 76 laterally collides with the pole 74 and the rear side door inner panel 78 is deformed inward in the vehicle width direction, the portion 72A of the simmen outer 72 is contacted with the portion 78A of the rear side door inner panel 78. I have come into contact with them.

Therefore, the rear side door 76 is attached to the pole 74.
Or if the side outer 72 crashes at high speed,
The clearance L easily disappears and the cymen outer 72
The part 72A and the acceleration transmission member 70 are configured to come into immediate contact with each other. The clearance L is not completely lost when the rear side door 76 or the cymen outer 72 collides with the pole 74 at a relatively low speed.

Next, the operation of this embodiment will be described.

In the side impact airbag sensor mounting structure of the present embodiment, when the rear side door 76 or the simmen outer 72 collides with the pole 74 at a high speed, the simmen outer 72 is directed inward in the vehicle width direction (arrow in FIG. 1). Since the clearance L easily moves away in the direction A), the portion 72A of the simmen outer 72 and the acceleration transmission member 70 are brought into contact with each other instantaneously. As a result, the acceleration at the time of a side collision can be quickly transmitted to the sensor main body 51 via the acceleration transmission member 70. Therefore, the rear side door 76 to the pole 74 is
Alternatively, it is possible to detect a side collision of the simen outer 72 early and reliably.

On the other hand, when the rear side door 76 or the simmen outer 72 collides with the pole 74 at a relatively low speed, the clearance L does not completely disappear, so that the portion 72A of the simmen outer 72 and the acceleration transmitting member 70 do not come into contact with each other. . As a result, the acceleration at the time of a side collision is not transmitted to the sensor body 51 via the acceleration transmission member 70. Therefore, unnecessary operation of the airbag device can be prevented.

Further, in this embodiment, the acceleration transmission member 7
Since the sensor main body 51 is disposed on the extension line S of the front wall portion 70F as the acceleration transmission wall portion at 0 inward in the vehicle width direction, the front wall of the acceleration transmission member 70 when the clearance L is lost. Since the portion 70F comes into contact with the portion where the sensor main body 51 is arranged, the acceleration at the time of a side collision is detected by the sensor main body 5.
1 can be transmitted even more quickly.

In the present embodiment, as shown in FIG. 2, the flange 70B formed on the lower portion 70A of the acceleration transmission member 70 is located above the rear end of the vertical wall portion 32B of the rocker outer rear 32, and the flange 70C is located above the rocker outer rear 32. A flange 70E formed on the upper portion 70D of the acceleration transmission member 70 while being joined to the rear end portion of the wall portion 32C.
Is joined to the flange 42A of the wheel house outer 42, but instead of this, as shown in FIGS. 5 and 6, a flange 70H additionally formed in the lower portion 70A of the acceleration transmission member 70 is joined to the flange 32D of the rocker outer rear 32. At the same time, a flange 70K additionally formed on the upper portion 70D of the acceleration transmission member 70 may be joined to the front lower portion 42B of the wheel house outer 42.

Next, a second embodiment of the side impact airbag sensor mounting structure of 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. 8, in the present embodiment, an acceleration transmission member 80 is arranged at the connecting portion between the rocker outer rear 32 and the wheel house outer 42, and the acceleration transmission member 80 includes the rocker outer rear 32 and the wheel house outer. It is a long member arranged so as to straddle 42. A flange 80A is formed on the inner side in the vehicle width direction of the acceleration transmitting member 80 so as to extend substantially forward of the vehicle body. The flange 80A is joined to the flange 42A of the wheel house outer 42 and the flange 32A of the rocker outer rear 32. There is. Further, a plurality of convex portions 80C extending in the vehicle width direction are formed at predetermined intervals in the vertical direction on a front wall portion 80B as an acceleration transmitting wall portion of the acceleration transmitting member 80, and each convex portion 80C is located on the upper front side. It bulges in an arc shape when viewed from the side.

As shown in FIG. 7, the acceleration transmission member 80
The top portion 80D of the convex portion 80C extends substantially along the vehicle width direction, and the sensor body 51 is disposed on the extension line S of the top portion 80D toward the inside in the vehicle width direction. An outer side portion of the acceleration transmission member 80 in the vehicle width direction is a free end that is not joined to other members, and a lateral wall portion 80E that extends substantially rearward of the vehicle body is formed. The area of the lateral wall portion 80E is set to be larger than that of the fixed side flange 80A, and the acceleration at the time of a side collision received by the lateral wall portion 80E is measured by the flange 8A.
The signal can be locally transmitted to the mounting portion of the sensor main body 51 via 0A.

Further, between the portion 72A of the outer side wall portion of the rear wheel house 26 facing the lateral wall portion 80E of the acceleration transmitting member 80 and the lateral wall portion 80E of the acceleration transmitting member 80, When a predetermined clearance L is formed and the rear portion of the rear side door 76 collides sideways with the pole 74 and the rear side door inner panel 78 is deformed inward in the vehicle width direction, the rear side door is provided at a portion 72A of the simmen outer 72. A portion 78A of the inner panel 78 comes into contact.

Therefore, the rear side door 76 is attached to the pole 74.
Or if the side outer 72 crashes at high speed,
The clearance L easily disappears and the cymen outer 72
The part 72A and the acceleration transmission member 80 are brought into contact with each other in an instant. The clearance L is not completely lost when the rear side door 76 or the cymen outer 72 collides with the pole 74 at a relatively low speed.

Next, the operation of this embodiment will be described.

In the structure for mounting the airbag sensor for side impact according to the present embodiment, when the rear side door 76 or the simmen outer 72 collides with the pole 74 at a high speed, the simmen outer 72 has a vehicle width similar to that of the first embodiment. Since the clearance L is easily lost by moving inward in the direction (direction of arrow A in FIG. 7), the portion 72A of the simmen outer 72 and the lateral wall portion 80E of the acceleration transmission member 80 contact with each other instantaneously and surely, and the flange 80A. Larger side wall 80E
It is possible to locally concentrate and transmit the acceleration received by the sensor via the flange 80A to the portion where the sensor main body 51 is disposed. Therefore, the side collision can be detected more quickly and accurately.

On the other hand, when the rear side door 76 or the simmen outer 72 collides with the pole 74 at a relatively low speed, the clearance L does not completely disappear, so that the portion 72A of the simmen outer 72 and the acceleration transmitting member 80 do not come into contact with each other. . As a result, the acceleration at the time of a side collision is not transmitted to the sensor body 51 via the acceleration transmission member 80. Therefore, unnecessary operation of the airbag device can be prevented.

Next, a third embodiment of the side collision airbag sensor mounting structure of the present invention will be described with reference to FIGS. 9 and 10 using the front and rear seat head protection airbag device as an example.

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 rear end of the sensor bracket 50, which is on the upper side where it is easy to detect the pole-side collision,
The screw portion 58A of the bolt 58 as a fixing member for fixing the vehicle to the vehicle body side is set to be long, and the bolt 58 also serves as an acceleration transmitting member. At the front end portion of the sensor bracket 50 on the lower side, the screw portion 56A of the bolt 56 for fixing the sensor bracket 50 to the vehicle body side has a nut 90 arranged on the flange 32A of the rocker outer rear 32.
The screw portion 58A of the bolt 58 is screwed into the nut 92 arranged on the flange 42A of the wheel house outer 42.

As shown in FIG. 9, on the extension line T of the screw portion 58A of the bolt 58 to the outer side in the vehicle width direction, the portion 72A of the outer side wall portion of the rear wheel house 26 in the simen outer 72 is located. ing. Also,
A predetermined clearance L is formed between the screw portion 58A of the bolt 58 and the portion 72A of the outer rim 72, the rear portion of the rear side door 76 collides with the pole 74, and the rear side door inner panel 78 has the vehicle width. When it is deformed inward in the direction, the part 7 of the cymen outer 72 is deformed.
The screw portion 58A of the bolt 58 comes into contact with 2A.

Therefore, the rear side door 76 is attached to the pole 74.
Or if the side outer 72 crashes at high speed,
The clearance L easily disappears and the cymen outer 72
The portion 72A and the threaded portion 58A of the bolt 58 are in contact with each other instantly. The clearance L is not completely lost when the rear side door 76 or the cymen outer 72 collides with the pole 74 at a relatively low speed.

Next, the operation of this embodiment will be described.

In the side impact airbag sensor mounting structure of this embodiment, as in the first embodiment, when the rear side door 76 or the side outer 72 collides with the pole 74 at a high speed, the side outer 72 is separated from the vehicle width. Since the clearance L is easily lost by moving inward in the direction (direction of arrow A in FIG. 9), the portion 72A of the simmen outer 72 and the threaded portion 58A of the bolt 58 instantaneously and reliably contact with each other, and the screw of the bolt 58 is screwed. The acceleration received by the portion 58A can be locally concentrated and transmitted to the sensor bracket 50 via the bolt 58. Therefore, the side collision can be detected more quickly and accurately.

On the other hand, when the rear side door 76 or the simmen outer 72 collides with the pole 74 at a relatively low speed, the clearance L is not completely lost. Therefore, the portion 72A of the simmen outer 72 and the screw portion 58A of the bolt 58 are not removed.
And do not touch. As a result, the acceleration at the time of a side collision is not transmitted to the sensor body 51 via the bolt 58. Therefore, unnecessary operation of the airbag device can be prevented.

Further, in this embodiment, since the bolt 58 for fixing the existing sensor bracket 50 is also used as the acceleration transmitting member, it is not necessary to provide a new acceleration transmitting member, so that the number of parts and the cost can be reduced. It is possible. Further, the adjustment for each vehicle can be easily performed only by changing the length or the arrangement position of the bolt 58.

In this embodiment, the bolt 58 for fixing the rear end portion of the sensor bracket 50 has the screw portion 58A elongated to be the acceleration transmitting member.
The screw portion 56A of the bolt 56 for fixing the front end portion of the above may be lengthened to serve as an acceleration transmitting member. Further, both the screw portion 58A of the bolt 58 and the screw portion 56A of the bolt 56 may be elongated. Further, instead of the bolts, other fixing members such as pins may be used.

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 the present embodiment, the front and rear seat head protection airbag device 10 is used, but instead of the front and rear seat head protection airbag device 10, a side airbag device provided in a seat, a side door, or the like. Other airbag devices for rear seats may be used.

[0051]

According to the mounting structure of the airbag sensor for side impact of the present invention as set forth in claim 1, when the wheel house side impacts on the pole, the side impact is efficiently detected while satisfying the off condition. It has an excellent effect of being able to.

In addition to the effect of the first aspect, the present invention of the second aspect has an excellent effect that the acceleration at the time of a side collision can be transmitted to the sensor more quickly.

The present invention according to claim 3 has an excellent effect that a side impact can be detected more quickly and accurately in addition to the effect according to any one of claims 1 and 2. .

In addition to the effect described in claim 1, the present invention described in claim 4 has an excellent effect that the number of parts can be reduced and the cost can be reduced and the adjustment for each vehicle can be easily performed. .

[Brief description of drawings]

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

FIG. 2 is a perspective view showing the attachment structure of the airbag sensor for side collision according to the first embodiment of the present invention, as seen from the front side in the vehicle width direction outside.

FIG. 3 is a perspective view showing the attachment structure of the airbag sensor for side collision according to the first embodiment of the present invention, as seen from the inside in the vehicle width direction and from the front.

FIG. 4 is a schematic side view showing a vehicle body to which the side impact airbag sensor mounting structure according to the first embodiment of the present invention is applied.

5 is an enlarged cross-sectional view taken along line 5-5 of FIG.

FIG. 6 is a perspective view showing an attachment structure of a side impact airbag sensor according to a modified example of the first embodiment of the present invention, as seen from the vehicle width direction outer front side.

7 is an enlarged cross-sectional view taken along line 7-7 of FIG.

FIG. 8 is a perspective view showing an attachment structure of a side impact airbag sensor according to a second embodiment of the present invention, as seen from the front side in the vehicle width direction outside.

9 is an enlarged sectional view taken along line 9-9 of FIG.

FIG. 10 is a perspective view showing an attachment structure of an airbag sensor for side collision according to a third embodiment of the present invention, as seen from the vehicle width direction outer front side.

FIG. 11 is a perspective view showing a mounting structure of a conventional side impact airbag sensor.

[Explanation of symbols]

10 Airbag device 14 sensors 16 inflator 18 Airbag bag 40 Wheelhouse Inner 42 wheel house outer 50 sensor bracket 51 Sensor body 58 bolts (fixing member, acceleration transmitting member) 70 Acceleration transmission member 70F Front wall of acceleration transmission member (acceleration transmission wall) 72 Simmen Outer 80 Acceleration transmission member 80A Acceleration transmission member flange 80B Front wall of acceleration transmission member (acceleration transmission wall) 80C Projection on the front wall 80D Top of convex part 80E Lateral wall of acceleration transmission member

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Patent Laid-Open No. 10-244835 (JP, A) Japanese Patent Laid-Open No. 10-59119 (JP, A) Actual Opening Flat 6-1035 (JP, U) Utility Model Registration 2540810 ( JP, Y2) (58) Fields surveyed (Int.Cl. ⁷ , DB name) B60R 21/16-21/32 B62D 25/04 B62D 25/16

Claims (4)

(57) [Claims] 1. A mounting structure for a side-impact airbag sensor of a vehicle equipped with a rear-seat airbag device that protects at least a rear-seat occupant in a side-collision, wherein the rear-side door opening is provided at a rear wheel house. And a vehicle outer side wall portion of the rear wheel house portion is provided with a predetermined clearance, and the sensor is brought into contact with the vehicle body outer side wall portion of the rear wheel house portion at the time of a side collision. An attachment structure for an airbag sensor for side impact, comprising: an acceleration transmission member that transmits acceleration. 2. The mounting structure for a side collision airbag sensor according to claim 1, wherein the sensor is arranged on a substantially extended line of an acceleration transmitting wall portion of the acceleration transmitting member. 3. The acceleration transmitting member has a lateral wall portion formed at a free end facing a vehicle body outer side wall portion of the rear wheel house portion with a predetermined clearance, and a fixed side flange. The mounting structure for an airbag sensor for side collision according to claim 1 or 2, wherein the area of the portion is larger than that of the flange on the fixed side. 4. The mounting structure for a side impact airbag sensor according to claim 1, wherein the acceleration transmitting member is a fixing member that fixes the sensor bracket.