JP2889644B2 - Device for absorbing collision energy to the side of the vehicle body - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a collision energy absorbing device for a vehicle body side portion, and more particularly to an airbag inflating and deploying between a vehicle body and an occupant to reduce collision energy in a side collision. It relates to what is to be absorbed.

(Prior art)

2. Description of the Related Art Conventionally, as an airbag device for a vehicle, an inertial force applied to an occupant at the time of a frontal collision is buffered through an airbag inflated and deployed from a steering handle or an instrument panel on a passenger seat, and a steering handle and an instrument panel are provided. Various types of devices that prevent a secondary collision of an occupant with the vehicle have been proposed and put into practical use.

The airbag device operates an ignition device (igniter) based on an output signal from a collision detection sensor mounted on a vehicle body, and instantaneously activates the airbag by the pressure of nitrogen gas generated from a gas generator (inflator). 2. Description of the Related Art Solid-type airbag devices that are inflated and deployed in a wide range are widely used.

Normally, a plurality of relatively large vent holes for venting gas are formed in the airbag, and in the event of a collision, the gas in the inflated and deployed airbag is discharged from the vent holes to receive the occupant and reduce the inertial force applied to the occupant. It is configured to buffer effectively. In addition, the operation timing of the ignition device and the gas generation speed from the gas generator are adjusted until the occupant makes a secondary collision with the steering wheel, instrument panel, etc. after the collision so that the occupant can be received by the fully deployed airbag. The predetermined value is set in consideration of time.

On the other hand, recently, in order to protect an occupant in the event of a side collision, for example, as described in JP-A-1-117957, an airbag unit including a firing device, a gas generator, an airbag and the like is provided in an armrest of a door. A collision detection sensor is installed in the door or side sill, and in the case of a side collision, the ignition device is activated at a predetermined timing so that the airbag fully deploys immediately before the occupant touches the door, and the fully deployed airbag There has also been proposed an airbag device that absorbs an impact from a door that has entered a vehicle interior to prevent a secondary collision between an occupant and the door.

Normally, the airbag for the side collision is configured to have a relatively small capacity so that the occupant can fully deploy in a short time due to the secondary collision of the occupant with the door in a short time in a side collision.

[Problems to be solved by the invention]

By the way, when the impact on the vehicle body during the side collision is large, the occupant on the side collision side received by the airbag is further jumped to the side opposite to the side collision side (hereinafter, the opposite side collision side) and A third collision may occur with the door on the side collision side.

However, since the side collision airbag has a relatively small capacity and only covers a part of the door, a tertiary collision between the door on the opposite side collision side and the occupant may occur. Further, as described in the above publication, the deployment timing of the airbag is set to a predetermined value in consideration of the secondary collision, so that the occupant moves from the door on the side collision side to the opposite side collision side. During this time, gas escapes from the vent hole and the airbag contracts, and the shock absorbing ability of the airbag against a tertiary collision decreases.

An object of the present invention is to provide a three-way vehicle for occupants and a vehicle body in a side collision.
It is an object of the present invention to provide a collision energy absorbing device for a vehicle body side portion capable of effectively preventing a next collision.

[Means for solving the problem]

A first aspect of the present invention is an airbag that inflates and deploys from inside the left and right sides of a vehicle body toward the interior of a vehicle when a side collision occurs. Left and right 1 each having an airbag capable of taking a second airbag deployment state larger than the deployment state
A pair of side collision airbag units, a pair of collision detection sensors for respectively detecting collisions on both side surfaces of the vehicle body, and receiving at least an output of the collision detection sensor, deploying at least the collision side airbag with the first airbag. Deployment control means for bringing the airbag on the side opposite to the collision side into the second airbag deployment state.

According to a second aspect of the present invention, in the first aspect of the present invention, each of the side collision airbag units includes a first airbag and a second airbag that is larger than the first airbag. And an airbag.

According to a third aspect of the present invention, there is provided an apparatus for absorbing collision energy to a side of a vehicle body, comprising: riding state detecting means for detecting a riding state of an occupant in left and right front seats; It includes timing variable means for setting the deployment timing of each of the left and right airbags in accordance with the direction of occurrence of the side collision detected by the sensor. When it is detected that each of the passengers is in the vehicle, after the collision is detected by the collision detection sensor, the first airbag on the collision side is immediately deployed and the side opposite to the collision side with the first delay time delayed. Is configured to deploy the second airbag.

According to a fourth aspect of the present invention, there is provided an apparatus for absorbing collision energy to a side of a vehicle body according to the second aspect of the present invention, further comprising a riding state detecting means for detecting a riding state of an occupant in left and right front seats, The timing change means includes means for setting the deployment timing of each of the left and right airbags in accordance with the direction of occurrence of the side collision detected by the sensor. If it is detected that the collision has been detected by the collision detection sensor, the first airbag on the collision side is immediately deployed after the collision is detected by the collision detection sensor, and the second airbag on the opposite side to the collision side is delayed with a second delay time. 2 is configured to deploy the airbag. According to a fifth aspect of the present invention, there is provided an apparatus for absorbing collision energy to a vehicle body side portion according to the second aspect of the present invention, further comprising a riding state detecting means for detecting a riding state of an occupant in left and right front seats, and the deployment control means comprises a collision detecting means. It includes timing variable means for setting the deployment timing of each of the left and right airbags according to the direction of occurrence of the side collision detected by the sensor, and this timing variable means is provided only when the riding state detection means is on the side opposite to the collision side. When it is detected that the occupant is in the vehicle, the second airbag on the collision side is immediately deployed after the collision is detected by the collision detection sensor.

According to a sixth aspect of the present invention, in the third or fourth aspect of the present invention, the timing variable means expands the second airbag on the side opposite to the side of the collision and then moves the third airbag to the third side. In this state, the first airbag on the side opposite to the collision side is deployed in a state where the delay time is delayed.

According to a seventh aspect of the present invention, in the invention of the sixth aspect, the third delay time is substantially equal to that of the first and second airbags on the side opposite to the collision side. It is characterized in that it is set to be fully developed at the same timing.

According to an eighth aspect of the present invention, in the third or fourth aspect of the present invention, the timing variable means deploys the first airbag on the collision side and simultaneously releases the second airbag on the collision side. The airbag is configured to be deployed.

According to a ninth aspect of the present invention, there is provided a collision energy absorbing device for a vehicle body side portion which is attached to a pair of vehicle body members constituting both side portions of the vehicle body, and a pair of collision detection means for detecting collisions on both right and left sides of the vehicle body. A pair of left and right airbags, wherein a part of each airbag is deployable as a first airbag part toward a vehicle interior, and the remaining part is a larger airbag than the first airbag part. A pair of left and right airbags that can be deployed into the vehicle cabin as a second airbag unit, and a respective one of the four airbag units according to the direction of occurrence of a side collision in response to the detection result of the collision detection unit. The apparatus includes a timing varying means for setting deployment timing, and an airbag deploying means for deploying the airbag section based on the timing set by the timing varying means.

According to a tenth aspect of the present invention, in the ninth aspect of the present invention, each of the airbags is configured such that the first and second airbag portions are integrated in a final step of the deployment operation. The present invention is characterized in that it is configured to be developed in. According to an eleventh aspect of the present invention, in the ninth aspect of the present invention, the timing variable means includes a second airbag unit provided after a lapse of a predetermined time from the deployment of the first airbag unit. Is developed.

According to a twelfth aspect of the present invention, in the invention of the eleventh aspect, when the collision detection unit detects a collision, the timing variable unit detects the collision side and the side opposite to the collision side. The first airbag portion of the airbag is configured to be simultaneously deployed.

According to a thirteenth aspect of the present invention, a collision energy absorbing device for a vehicle body side portion is attached to a pair of collision detection means for detecting collisions on both side surfaces of the vehicle body and a pair of vehicle body members constituting both side portions of the vehicle body. A pair of left and right airbag units, each airbag unit being independently deployable into the vehicle compartment.
A pair of left and right airbag units including a pair of airbags, and a timing variable unit that sets the deployment timing of each of the four airbags according to the direction of occurrence of a side collision based on the detection result of the collision detection unit. And an airbag deploying means for deploying the airbag based on the timing set by the timing variable means.

According to a fourteenth aspect of the present invention, in the invention of the thirteenth aspect, the timing variable unit is configured to set the deployment timing in consideration of the size of the airbag. It is assumed that.

According to a fifteenth aspect of the present invention, there is provided a vehicle body side collision energy absorbing device according to the thirteenth aspect, further comprising a riding state detecting means for detecting a riding state of an occupant in left and right front seats, and When the means detects a collision, if the riding state detection means detects that the occupant is only on the collision side, a small airbag on the collision side and a large airbag on the opposite side to the collision side Are developed at the same time.

The apparatus for absorbing collision energy on the side of the vehicle body according to claim 16 is the invention according to claim 13, further comprising riding state detection means for detecting the riding state of the occupant in the left and right front seats, wherein the variable timing means detects the collision. When the means detects a collision, if the riding state detecting means detects that the occupant is only on the side opposite to the collision side, the large airbag on the collision side is deployed. It is a feature.

[Action]

According to the first aspect of the present invention, a first airbag deployed state in which the vehicle body is inflated and deployed from inside the left and right sides of the vehicle body toward the interior of the vehicle and a second airbag deployed state larger than the first airbag deployed state can be taken. A pair of left and right side airbag units each having an airbag are provided, and at a time of a side collision, the deployment control means receives an output from a collision detection sensor that detects each of the collisions on both side surfaces of the vehicle body. The airbag on the side is in a first airbag deployed state, and the airbag on the side opposite to the collision side is in a second airbag deployed state.

Therefore, a secondary collision between the occupant and the side of the vehicle body on the collision side is effectively prevented by a standard-sized first airbag in an expanded state where the occupant is fully deployed until the occupant comes into contact with the side of the vehicle body. Even if the impact at the time of the collision is large and the occupant is blown to the opposite side, the airbag in the second airbag deployment state larger than the first airbag deployment state substantially completely covers the opposite side of the vehicle body. And a tertiary collision between the occupant and the side of the vehicle body can be reliably prevented.

According to the second aspect of the present invention, since each side collision airbag unit includes the first airbag and the second airbag larger than the first airbag, only the first airbag is provided. The state in which is deployed corresponds to the first airbag deployed state, and the state in which the second airbag is deployed corresponds to the second airbag deployed state.

According to the third aspect of the present invention, the riding state of the occupant in the left and right front seats is detected by the riding state detecting means, and the deployment control means determines the deployment timing of each of the left and right airbags in accordance with the direction of occurrence of the side collision. When there is an occupant in the left or right front seat, the timing variable means immediately deploys the first airbag on the collision side and detects the first delay when the collision is detected. The deployment timing is set so that the second airbag on the side opposite to the collision side is deployed with the time delayed. Since the first airbag on the collision side is immediately deployed, a secondary collision between the occupant on the collision side and the vehicle body side on the collision side can be prevented, and the occupant moves to the vehicle body side on the side opposite to the collision side. The second airbag opposite to the collision side can be deployed just before the occupant comes into contact with the side of the vehicle body opposite to the collision side with a delay by the time, so that the large second fully-deployed airbag can be deployed. The occupant can be received by the airbag and the tertiary collision with the side of the vehicle body can be reliably prevented.

According to the fourth aspect of the present invention, similarly to the third aspect, the riding state detecting means and the timing varying means are provided, and the timing varying means detects that the occupant is riding only on the collision side. After the collision is detected by the collision detection sensor, the first airbag on the collision side is immediately deployed and the second airbag on the side opposite to the collision side is deployed with a second delay time. The deployment timing as follows. The action of the deployment of the first airbag on the collision side is the same as that of the third aspect, and is delayed by the time required for the occupant on the collision side to move to the vehicle body side opposite to the collision side,
Immediately before the occupant comes into contact with the side of the vehicle body opposite to the collision side, the second airbag opposite to the collision side can be deployed, and the occupant is received by the fully deployed large second airbag. As a result, a tertiary collision with the side of the vehicle body can be reliably prevented.

According to the fifth aspect of the present invention, similarly to the third aspect, the riding state detecting means and the timing varying means are provided, and the timing varying means assumes that the occupant is on only the side opposite to the collision side. If it is detected, the deployment timing is set so that the second airbag on the collision side is immediately deployed after the collision detection by the collision detection sensor. Therefore, even in the case of a severe collision, it is possible to reliably prevent the occupant from secondary collision with the side of the vehicle body on the collision side.

In the invention according to claim 6, the timing variable means includes:
After the second airbag on the side opposite to the collision side is deployed, the deployment timing is set so as to deploy the first airbag on the side opposite to the collision side with a third delay time delayed. . Since the first airbag is deployed in a shorter time than the second airbag, by deploying the second airbag with a delay of the third delay time as described above, the first airbag is deployed on the opposite side to the collision side. The first airbag and the second airbag can be deployed almost simultaneously.

In the invention according to claim 7, the third delay time is set so that the first and second airbags are fully deployed at substantially the same timing on the opposite side on the collision side.
It is possible to more reliably prevent the tertiary collision with the side of the vehicle body opposite to the collision side of the occupant.

In the invention according to claim 8, the timing variable means includes:
Since the deployment timing is set so that the first airbag on the collision side is deployed at the same time as the second airbag on the collision side is deployed, it is more certain that the occupant will make a secondary collision with the side of the vehicle body on the collision side. Can be prevented.

In a ninth aspect of the present invention, the pair of collision detecting means detects collisions on both right and left sides of the vehicle body. A pair of left and right airbags is configured such that a portion of each airbag is deployable as a first airbag portion into a vehicle interior and the other portion is a second airbag having a size larger than that of the first airbag portion. The air bag deployable means can be deployed toward the vehicle interior as a bag section, and the timing variable means sets the deploy timing of each of the four airbag sections according to the direction of occurrence of the side collision when a side collision is detected. Deploys the airbag section based on the timing set by the timing varying means. The time required for deployment of the first airbag section is shorter than the time required for deployment of the second airbag section,
By the timing variable means, it is possible to set the deployment timing of each of the four airbag portions in accordance with the direction of occurrence of the side collision, so that the first airbag portion on the collision side is immediately deployed, and The second or third airbag portion can be deployed with a delay to prevent a secondary collision and a tertiary collision between the occupant and the side of the vehicle body at the time of collision.

In the invention of claim 10, each airbag is configured to be deployed in a state where the first and second airbag portions are integrated in the final step of the deployment operation.
1, the second airbag section can be configured with a common airbag,
The number of parts can be reduced.

In the invention of claim 11, the timing variable means includes:
After a predetermined time has passed since the first airbag portion was deployed,
Since the second airbag portion is configured to be deployed, the occupant on the collision side is buffered by the first airbag portion, and the occupant on the opposite side to the collision side that moves with a time delay is moved to the second airbag portion. 2
Can be buffered by the airbag section. In the invention of claim 12, since the timing variable means is configured to simultaneously deploy the first airbag portion of the airbag on the side of the collision and the side opposite to the side of the collision when the collision is detected. In the event that a collision has occurred on either of the left and right vehicle body sides, the first airbag portion can prevent a secondary collision between the occupant on the collision side and the vehicle body side.

In the invention of claim 13, a pair of left and right airbag units attached to a pair of vehicle body members constituting both side portions of the vehicle body by detecting a collision with both side surfaces of the vehicle body by a pair of collision detection means. Each of which includes a pair of large and small airbags that can be independently deployed toward the vehicle interior,
When a collision is detected, 4
The respective airbag deployment timings are set, and the airbag deployment means deploys the airbag based on the timing set by the timing variable means. Although the deployment time of the small airbag is shorter than the deployment time of the large airbag, the timing of the four airbags can be set by the timing variable means in accordance with the direction in which the side collision occurs. Prevents secondary and tertiary collisions between the occupant and the side of the vehicle body in the event of a collision by deploying the small airbag on the side of the collision immediately and deploying the large airbag on the side opposite to the collision with a delay. can do.

In the invention of claim 14, the timing variable means includes:
The configuration is such that the deployment timing is set in consideration of the size of the airbag, so that the collision side and the large and small airbags on the side opposite to the collision side are deployed at appropriate timings, respectively, and the energy of the airbag is adjusted. Absorption can be ensured.

In the invention according to claim 15, the riding state detecting means detects the riding state of the occupant in the left and right front seats, and the timing variable means detects when the collision is detected, and the occupant is only on the collision side The deployment timing is set so that the small airbag on the collision side and the large airbag on the side opposite to the collision side are simultaneously deployed.

Therefore, the time required to deploy a small airbag is short, and the time required to deploy a large airbag is not short, so that the small airbag on the collision side immediately deploys after the collision, and the large airbag on the side opposite to the collision side. The airbag is deployed after the collision and immediately before the occupant on the collision side reaches the vehicle body side opposite to the collision side, the airbag is deployed.
Secondary collision and tertiary collision can be prevented.

In the invention of claim 16, the riding state detecting means detects the riding state of the occupant in the left and right front seats, and the timing variable means, when a collision is detected, the occupant rides only on the side opposite to the collision side. If so, the deployment timing is set so that the large airbag on the collision side is deployed. Therefore, while the occupant on the side opposite to the collision side moves to the collision side,
The large airbag on the collision side is deployed, and immediately before the occupant collides with the side of the vehicle body, the large airbag on the collision side is deployed. In this way, it is possible to prevent the occupant from colliding with the side of the vehicle body on the collision side for the second time.

〔The invention's effect〕

According to the invention of claim 1, when a side collision occurs, the airbag on the collision side is set to the first airbag deployed state, and the airbag on the side opposite to the collision side is larger than the first airbag deployed state. Since the airbag is in the deployed state, the airbag in the first airbag deployed state can prevent a secondary collision between the occupant and the side of the vehicle body on the collision side, and even if the impact of the collision is large and the occupant is blown to the opposite side. The vehicle body side opposite to the collision side is almost completely covered by the large airbag in the expanded state of the second airbag, so that the tertiary collision between the occupant and the vehicle body side can be reliably prevented, and the side collision can be prevented. Safety can be improved.

According to the invention of claim 2, since each side collision airbag unit includes the first airbag and the second airbag that is larger than the first airbag, the deployed second airbag is provided. The performance of protecting the occupant can be enhanced by largely and widely covering the inner surface of the vehicle body side portion with the airbag. Others
The same effect as the first aspect is achieved.

According to the third aspect of the present invention, when there are occupants in the left and right front seats, after detecting the collision, the first airbag on the collision side is immediately deployed, and the collision is performed with the first delay time delayed. Since the second airbag on the side opposite to the side is deployed, it is possible to prevent a secondary collision between the occupant on the collision side and the side of the vehicle body on the collision side, and the occupant can reach the vehicle side on the side opposite to the collision side. The second airbag opposite to the collision side can be deployed just before the occupant comes into contact with the side of the vehicle body opposite to the collision side by delaying the traveling time, and the fully deployed large airbag can be deployed. Second
The occupant can be received by the airbag and the tertiary collision with the side of the vehicle body can be reliably prevented. The other effects are the same as those of the second aspect.

According to the invention of claim 4, when the occupant is only on the collision side, after the collision is detected, the first airbag on the collision side is immediately deployed and the second delay time is delayed. And the second airbag on the side opposite to the collision side is deployed, so that the deployment of the first airbag on the collision side can prevent a secondary collision between the occupant on the collision side and the side of the vehicle body on the collision side. The second airbag on the side opposite to the collision side is deployed by delaying the time required for the occupant on the side to move to the side of the vehicle body on the side opposite to the collision side, so that the large second airbag fully deployed Thus, the occupant can be received and the tertiary collision with the side of the vehicle body can be reliably prevented. The other effects are the same as those of the second aspect.

According to the invention of claim 5, when the occupant is only on the side opposite to the collision side, the second airbag on the collision side is immediately deployed after the collision is detected. Also, it is possible to reliably prevent the occupant from secondary collision with the vehicle body side on the collision side. The other effects are the same as those of the second aspect.

According to the invention of claim 6, after the second airbag on the side opposite to the collision side is deployed, the first airbag on the side opposite to the collision side is moved with the third delay time delayed. Although the first airbag is deployed in a shorter time than the second airbag, by deploying the second airbag with a delay of the third delay time, the first airbag is deployed in a shorter time than the second airbag. 1
And the second airbag can be deployed almost simultaneously. In addition, the same effects as those of the third or fourth aspect are exhibited.

According to the seventh aspect of the present invention, the third delay time is set such that the first and second airbags are fully deployed at substantially the same timing on the opposite side on the collision side. The tertiary collision with the vehicle body side opposite to the side can be more reliably prevented. The other effects are the same as those of the sixth aspect.

According to the invention of claim 8, since the second airbag on the collision side is deployed at the same time as the first airbag on the collision side is deployed, it is possible to prevent the occupant from colliding with the vehicle body on the collision side in a secondary collision. It can be prevented more reliably. Other claim 3
Or, the same effect as 4 can be obtained.

According to the invention of claim 9, the pair of left and right airbags is
A portion of each airbag can be deployed as a first airbag portion, and the remaining portion can be deployed as a second airbag portion having a size larger than the first airbag portion, and a side collision is detected. Then, the deployment timing of each of the four airbag sections is set and deployed in accordance with the direction of occurrence of the side collision, so that the first airbag section on the side of the collision is immediately deployed and the second airbag section on the side opposite to the collision is deployed. By delaying and deploying the airbag portion, it is possible to prevent a secondary collision and a tertiary collision between the occupant and the vehicle body side at the time of collision.

According to the tenth aspect, the first and second airbag portions can be configured with a common airbag, and the number of parts can be reduced. In addition, the same effects as those of the ninth aspect are exhibited.

According to the eleventh aspect of the present invention, the second airbag portion is deployed after a lapse of a predetermined time from the deployment of the first airbag portion, so that the occupant on the collision side is buffered by the first airbag portion. The occupant on the opposite side to the collision side, which moves with a time delay, can be buffered by the second airbag section. In addition, the same effects as those of the ninth aspect are exhibited.

According to the twelfth aspect of the invention, when a collision is detected, the collision side and the first airbag portion of the airbag on the side opposite to the collision side are simultaneously deployed. In the event of occurrence of a collision, the first airbag portion can also prevent a secondary collision between the occupant on the collision side and the vehicle body side portion. The other effects are the same as those of the eleventh aspect.

According to the invention of claim 13, 1 constituting both sides of the vehicle body
Each of a pair of left and right airbag units attached to a pair of body members includes a pair of large and small airbags that can be independently deployed toward the vehicle interior, and when a collision is detected, the direction of the side collision is detected. The four airbags are set in accordance with their respective deployment timings and deployed, so that the small airbag on the collision side is deployed immediately, and the large airbag on the side opposite to the collision is deployed with a delay, and It is possible to prevent a secondary collision and a tertiary collision between the occupant and the side of the vehicle body at the time.

According to the invention of claim 14, in order to set the deployment timing in consideration of the size of the airbag, the collision side and the large and small airbags on the side opposite to the collision side are deployed at appropriate timings, respectively. The energy absorbing action of the bag can be secured. The other effects are the same as those of the thirteenth aspect.

According to the invention of claim 15, when a collision is detected, if the occupant is only on the collision side, the small airbag on the collision side and the large airbag on the side opposite to the collision side are separated. At the same time, the small airbag on the collision side is deployed immediately after the collision, and the large airbag on the side opposite the collision side is delayed after the collision so that the occupant on the collision side can Since the deployed state is reached immediately before reaching the vehicle body side portion, the secondary collision and the tertiary collision between the occupant and the vehicle body side portion can be prevented. The other effects are the same as those of the thirteenth aspect.

According to the invention of claim 16, when a collision is detected, if the occupant is only on the side opposite to the collision side, the deployment timing is set so as to deploy the large airbag on the collision side. As the occupant on the side opposite to the collision side moves to the collision side, the large airbag on the collision side deploys, and the large airbag on the collision side immediately before the occupant collides with the vehicle body side. Become expanded. In this way, it is possible to prevent the occupant from colliding with the side of the vehicle body on the collision side for the second time.
The other effects are the same as those of the thirteenth aspect.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In this embodiment, the present invention is applied to a vehicle airbag device for further improving the safety for a front passenger in a side collision.

As shown in FIGS. 1 to 4, the airbag device includes a pair of left and right side collision airbag units (hereinafter, side collision units) 4 provided in left and right front doors 2 of the automobile 1. And a pair of seat sensors 7A and 7A which are respectively provided at substantially the center portions of the seat cushions 6 of the left and right front seats 5.
7B, a pair of first impact detection sensors 9A and 9B respectively installed in the left and right doors 2 and a pair of second impact detection sensors 11A and 11B respectively installed in the left and right side sills 10, when a side collision occurs. Receiving the output from the impact detection sensors 9A, 9B, 11A and 11B, the ignition devices 12A and 13A installed in the right side collision unit 4 and the ignition devices 12B and 13B installed in the left side collision unit 4
Each control unit 14 (see FIG. 7) is provided with a control unit 14 (see FIG. 7) for energizing at a predetermined timing.

The side collision unit 4 will be described. The side collision unit 4 is provided on each of the left and right doors 2. However, since they are symmetrical, only the right side (driver's seat side) will be described.

As shown in FIGS. 5 and 6, a protrusion 15a extending in the front-rear direction from the front end to the rear end of the right side door 2 at the upper part of the door trim 15 protrudes toward the passenger compartment. A housing portion 17 is formed between the rear portion of the protruding portion 15a and the door inner panel 16, and a base plate 18 is fixed to a wall portion of the door inner panel 16 facing the housing portion 17,
Two large and small frame-shaped casings 19 and 20 are air-tightly fixed to the front and rear of the left end face of the 18, and the right part of the casings 19 and 20 instantaneously reacts with the gas generating agent and the flame enhancer. Gas generators 21 and 22 for generating gas are respectively accommodated. In the gas generators 21 and 22, a second firing device 12A and a first firing device 13A for generating heat by energization and reacting the gas generating agent with the flame enhancer are provided. Each is decorated.

A standard-sized bag-shaped first airbag 24 is accommodated in a folded state in the left part of the rear casing 20, and a bag-shaped larger airbag than the first airbag 24 is stored in the left part of the front casing 19. The second airbag 23 is housed in a folded state, and the outer peripheral portions of the left ends of the airbags 23 and 24 are covered with a casing 19.
The airbag 23 is fixed to the outer periphery of the left end of
A plurality of vent holes (not shown) for discharging gas in the airbags 23 and 24 are formed near the base end of the 24,
Groove 15b is provided on the inside of door trim 15 corresponding to accommodation section 17.
Are formed in a substantially H shape, and a perforation 25a is formed in the skin 25 covering the door trim 15 so as to correspond to the groove 15b.
When at least one of A and 13A is energized, a large amount of gas is instantaneously generated from the corresponding gas generators 21 and 22, and the air bags 23 and 24 corresponding to the energized ignition devices 12A and 13A.
Due to this gas pressure, the groove 15b of the door trim 15 and the skin 2
5 perforation 25a is broken and inflated between the occupant and door 2.
expand. In addition, the reaction speed of the gas generating agent and the flame enhancer, the capacity of the airbags 23 and 24, and the opening area of the vent hole,
About 10 msec after the operation of the first ignition device 13A, the first airbag 24
However, the predetermined value is set so that each of the second airbags 23 fully deploys about 50 msec after the operation of the second firing device 12A.

The impact detection sensors 9A, 9B, 11A, and 11B are existing well-known acceleration-sensitive sensors. As shown in FIGS. 2 to 4, the first impact detection sensors 9A and 9B are located in the left and right doors 2. Both ends are fixed to the substantially central portions of the outer end surfaces of the front and rear direction reinforcing members 27 connected to the door outer panel 26, respectively.
The impact detection sensors 11A and 11B are fixed to substantially the center of the vertical wall of the left and right side sills 10 in the front-rear direction, respectively. The first impact detection sensors 9A and 9B are set to have relatively low sensitivity, and the impact force at the time of collision is predetermined. When the value exceeds the value, the second impact detection sensors 11A and 11B are set to have relatively high sensitivity, and are turned on even with a small impact force. In addition, the impact force at the time of side collision is applied to the impact detection sensors 9A, 9B, 11A, 1 via the door outer panel 26, etc.
Due to the transmission to 1B, impact detection sensors 9A ・ 9B ・ 11A ・ 1
1B turns ON about 10 msec after the side collision. The seat sensors 7A and 7B are turned ON when the occupant sits on the seat cushion 6.

Next, the control unit 14 will be described.

As shown in FIG. 7, the ignition devices 12A and 13A of the driver side collision unit 4 and the ignition devices 12B and 13B of the passenger seat are respectively
Four relay switches 31 for ON / OFF switching are provided, and when the solenoid 32 of the relay switch 31 is excited and the switch 33 is closed, the ignition devices 12A, 13A, and 13A corresponding to the closed switch 33 are provided. 12B ・ 13B heaters 34A ・ 35A ・
Power is supplied to 34B and 35B.

The driver-side seat sensor 7A is connected to an OR gate 41 and AND gates 42 and 43 and ANDed through a NOT gate 44.
The gate sensor 45 is connected to the gate 45, and the seat sensor 7B on the passenger side is connected to the OR gate 41 and the AND gates 42 and 45, and also connected to the AND gate 43 via the NOT gate 46.
Connected to AND gates 47 and 50, and AND gate 43 is connected to AND gate 4
8 and 52, the AND gate 45 is connected to the AND gates 49 and 51, the OR gate 41 is connected to the AND gates 53 and 54, and the driver's side collision detection sensors 9A and 11A are connected through the AND gate 55.
Connected to AND gate 53, collision detection sensor 9B on the passenger seat side
11B is connected to the AND gate 54 via the AND gate 56, and A
The ND gate 53 is connected to AND gates 47 to 49, respectively, and the AND gate 54 is connected to AND gates 50 to 52, respectively.

The AND gate 47 is connected to the drive circuit 58 via the OR gate 57 and to the drive circuit 59 via the first delay circuit 35, and is connected to the driver's seat when the driver and the passenger are in the vehicle. In the event of a side collision, the first ignition device 13A on the driver's seat side is activated immediately after the side collision, and the first airbag 24 on the driver's seat side immediately before the driver contacts the door 2.
Is fully deployed, and after the delay time T1 has elapsed, the second firing device 12B on the passenger seat side is operated, and the second airbag 23 on the passenger seat side is fully deployed immediately before the passenger contacts the door 2. In other words, at the time of the side collision, the passenger first moves to the collision side due to the impact at the time of the collision,
When the impact at the time of the side collision is large, the driver contacts the driver moving further to the opposite side after being received by the first airbag 24 on the driver's seat side, and moves together with the driver to the opposite side to the collision side to fully deploy. The second large airbag 23 is received on the side.

The AND gate 48 is connected to a drive circuit 58 via an OR gate 57, and is also connected to a drive circuit 59 via a second delay circuit 37. In the event of a collision, the first ignition device 13A on the driver's seat side is activated immediately after the side collision, and the first airbag 24 on the driver's seat side is fully deployed immediately before the driver contacts the door 2, and after the delay time T2 has elapsed, The two-ignition device 12B is operated, and the second airbag 23 on the passenger seat side is fully deployed just before the driver contacts the door 2. That is, at the time of the side collision, the driver is first received by the first airbag 24 on the driver's seat side, but when the impact at the time of the collision is large, the driver moves to the opposite side to fully deploy the large second airbag on the passenger seat side. It is received by the bag 23.

The AND gate 49 is connected to the drive circuit 60. In the event of a side collision with the driver's seat while only the passenger is in the vehicle, the second ignition device 12A on the driver's side is activated immediately after the side collision, and the passenger is moved to the door. Immediately before contacting the second airbag 2, the second airbag 23 on the driver's seat side is fully deployed. In other words, at the time of the side collision, the passenger moves toward the driver's seat due to the impact at the time of the collision, and is received by the large second airbag 23 on the driver's seat side fully deployed.

The AND gate 50 is connected to the drive circuit 62 via the OR gate 61 and to the drive circuit 60 via the first delay circuit 36, so that the driver and the passenger are on the passenger seat side while riding. In the case of a side collision, the first ignition device 13B on the passenger seat is activated immediately after the side collision, and the second ignition on the front passenger seat is performed immediately before the passenger comes into contact with the door 2, contrary to the side collision on the driver seat side. 1 When the airbag 24 is fully deployed and the delay time T1 has elapsed, the second
The ignition device 12A is operated, and the second airbag 23 on the driver's seat side is fully deployed just before the driver contacts the door 2.

The AND gate 51 is connected to the drive circuit 62 via the OR gate 61, and is connected to the drive circuit 60 via the second delay circuit 38. In the event of a collision, contrary to the side collision with the driver's seat, the first ignition device 13B on the front passenger's seat is activated immediately after the side collision, and the first air on the front passenger's seat immediately before the passenger contacts the door 2. While the bag 24 is fully deployed, the second firing device 12A is operated after the delay time T2 has elapsed, and the second airbag 23 on the driver's seat side is fully deployed immediately before the passenger contacts the door 2.

The AND gate 52 is connected to the drive circuit 59, and in the event of a side collision on the passenger seat side with only the driver riding, immediately after the side collision, as opposed to the side collision on the driver seat side described above. The second firing device 12B on the side is operated, and the second airbag 23 on the passenger seat side is fully deployed just before the driver contacts the door 2. Note that the left and right airbags 23 and 24 are not deployed at the time of a side collision while the occupant is not riding.

The delay time T1 for setting the energization timing to the heaters 34A, 35A, 34B, 35B according to the occupant's riding condition.
To explain the T2, the delay time T1 is a delay time corresponding to the case where the occupant on the side collision side and the occupant on the opposite side are both riding, and the occupant after the side collision is near the door 2 on the opposite side to the collision side. Is set to a time obtained by dividing the deployment time of the second airbag (about 50 msec) from the time required to travel to the vehicle (for example, T1 = 120 msec), and the delay time T2 is set only when the occupant on the side collision side is on board. The time required for the occupant to move to the vicinity of the door on the side opposite to the collision side after the side collision, divided by the deployment time of the second airbag (about 50 msec) (For example, T2 = 50 msec).

Here, the calculation performed based on FIGS. 8 and 9 for setting the delay times T1 and T2 will be briefly described. 8 and 9 show the state at the moment when the occupant collides with the door 2A on the side collision side.

In FIG. 8, at the time of side collision with the driver side door 2A,
Time t1 until driver and passenger contact
= L1 / (V1 + V2), and the speeds v1 and v after the collision between the two
2 (however, the anti-collision direction is positive), and if the weights of both are equal, then, according to the law of conservation of momentum, if V1-V2 = v1 + v2 and the coefficient of restitution of both is α, then α =-(v2-v1) / (− V2−
V1).

From both equations, v2 = [V1 (1 + α) -V2 (1-α)]
/ 2, and the time T1 until the passenger touches the door 2B on the anti-collision side is T1 = t1 + (L3 + V2 × t1) / v2 = [L1 (1 + α) + 2L3] / [V1 (1 + α) −V2 (1-
α)] In FIG. 9, when there is no passenger in the front passenger seat, the side impact on the driver's seat side door 2A causes the driver to fly to the anti-collision side door 2B and contact the anti-collision side door 2B. Time T2 becomes T2 = L / V1.

Here, V1 = V2 = 10 m / sec, L1 = 141 mm, L3 = 230 mm,
Assuming that L = 783 mm and the coefficient of restitution α between the occupants is α = 0.2, T1 =
153.8 msec, T2 = 78.3 msec.

 Next, the operation of the airbag device will be described.

When the occupant is on the side collision side and the opposite side, the first airbag 24 on the collision side is fully deployed after a predetermined time (about 20 msec) has elapsed from the collision, and the first deployment airbag 24 is fully deployed. The second occupant is received to prevent a secondary collision between the occupant on the collision side and the door 2, and after a predetermined time (about 170 msec) after the collision, the second airbag 23 on the opposite side is fully deployed, and Even if the occupant on the collision side is blown to the opposite side by the impact from the door 2 on the side and further moves to the opposite side with the occupant on the opposite side, the occupant and the door are fully opened by the large second airbag 23 on the opposite side. The tertiary collision with 2 is reliably prevented.

When only the occupant on the side collision side is in the vehicle, the first airbag 24 on the collision side has been in a predetermined time (about 20 msec) from the collision.
After the lapse, the occupant is received by the fully deployed first airbag 24 to prevent a secondary collision between the occupant on the collision side and the door 2, and a predetermined time (about
After the elapse of 100 msec), the second airbag 23 on the opposite side is deployed, and even if the occupant is blown to the opposite side by the impact from the door 2 that enters the passenger compartment, the occupant is fully deployed by the large airbag 23 on the opposite side. A tertiary collision with the door 2 is reliably prevented.

When the occupant is only on the side opposite to the side collision side, the second airbag 23 on the collision side fully deploys after a lapse of a predetermined time (about 60 msec) from the collision, and the occupant receives an impact from the door 2 on the collision side. Even if the passenger is blown to the collision side, the secondary collision between the occupant and the door 2 is effectively prevented by the large deployed second airbag 23 on the collision side.

As described above, if the standard-sized first airbag 24 that fully deploys in a relatively short time can effectively prevent the secondary collision between the occupant on the collision side and the door 2 on the collision side,
The second airbag that expands larger than the first airbag 24
At 23, it is possible to reliably prevent a tertiary collision between the occupant on the collision side and the door 2 on the opposite side and a secondary collision between the occupant on the opposite side and the door 2 on the collision side.

Furthermore, since the deployment timing of the airbags 23 and 24 is changed according to the occupant's riding situation, the airbags 23 and 24 can be fully deployed just before the occupant comes into contact, and the fully deployed airbags 23 and 24 can be fully deployed. At 24, the occupant is received, and the secondary collision and the tertiary collision between the occupant and the door 2 can be effectively prevented.

The first delay circuit 35 of the control unit 14
36 and the second delay circuits 37 and 38 are omitted, and the AND gates 47 and 48 are
When the driver is connected to the driving circuit 59 via the R gate, and the AND gates 50 and 51 are connected to the driving circuit 60 via the OR gate, and when the occupant is on the side collision side, the first collision side is connected.
The ignition devices 13A and 13B and the second ignition devices 12A and 12B on the opposite side may be operated simultaneously. In other words, it is best to receive the occupant with the second airbag 23 in the fully deployed state, but since the time required for deployment of the second airbag 23 is relatively long, the first ignition devices 13A and 13B on the collision side are Even if the second firing devices 12A and 12B on the opposite side are simultaneously operated, the occupant can be effectively received by the second airbag 23 which is almost fully deployed.

The control unit 14 includes a sheet sensor.
Firing devices 12A, 12B, 13A, 13B based on outputs from 7A, 7B
Was activated, but the seat sensors 7A and 7B were omitted, and regardless of the occupant's riding condition, the first airbag 24 on the collision side and the second airbag 23 on the opposite side were simultaneously or at the same time or delayed during a side collision. You may make it expand by holding it.

<First Modification> The configuration of the control unit 14 may be partially modified as follows. The same components are denoted by the same reference numerals, and detailed description thereof will be omitted.

Describing the control unit 14A, the tenth
As shown in the figure, an OR gate 57 is connected to a drive circuit 58 via an OR gate 63, and a first delay circuit 36 and a second delay circuit 38
The AND gate 49 is connected to the drive circuit 60 and the third
The OR gate 61 is connected to the OR gate 63 via the delay circuit 64.
Are connected to the drive circuit 62 via the OR gate 65, and the first delay circuit 35, the second delay circuit 37, and the AND gate 52 are connected to the drive circuit 59.
And an OR gate through a third delay circuit 66
Connected to 65. The delay time T3 of the third delay circuits 64 and 66 is set to T3 = 40 msec, which is the difference between the deployment time of the first airbag 24 and the time of deployment of the second airbag 23.

In the airbag device provided with the control unit 14A, the first airbag 24 and the second airbag
While the airbag 23 is deployed at a predetermined timing,
The first airbag 24 on the side of the deployed second airbag 23 is also the second airbag.
The deployment is started after the delay time T3 elapses after the firing devices 12A and 12B are activated, and fully deployed at the same time as the second airbag 23. Therefore, the two fully deployed ebags 23 and 24 effectively receive the occupant. Can be done.

The first delay circuit 35 of the control unit 14A
・ 36 and the second delay circuits 37 and 38 are omitted, and AND gates 47 and 48
Are connected to the drive circuit 59 and the third delay circuit 66 via an OR gate, and the AND gates 50 and 51 are connected to the drive circuit 60 and the third delay circuit 64 via an OR gate. When the vehicle is on the vehicle, the first ignition device 13A / 13B on the collision side and the second ignition device 12 on the opposite side
A and 12B may be operated simultaneously. Further, the third delay circuits 64 and 66 may be omitted, and the first firing devices 13A and 13B on the same side may be operated simultaneously with the second firing devices 12A and 12B.

In the control unit 14A, the ignition devices 12A, 12B, 13A, 1A are controlled based on the outputs from the sheet sensors 7A, 7B.
3B was operated, but the seat sensors 7A and 7B were omitted, and the first airbag 24 and the second airbag 23 on the opposite side to the first airbag 24 on the collision side during a side collision, regardless of the occupant's riding condition. May be developed simultaneously or with a delay time.

<Second Modification> The configuration of the control unit 14A may be partially modified as follows. The same components are denoted by the same reference numerals, and detailed description thereof will be omitted.

Describing the control unit 14B, the eleventh
As shown in the figure, an OR gate 57 is connected to a drive circuit 58 via an OR gate 63, an AND gate 49, a first delay circuit 36, and a second delay circuit 38 are connected to an OR gate 67, and an OR gate 61 is connected to the OR gate 67. OR
The driving circuit 59 is connected via a gate 68 to the AND gate 52.
, The first delay circuit 35 and the second delay circuit 37 are connected to the OR gate 68.

In the airbag device including the control unit 4B, the first airbag 24 and the second airbag 23 are deployed at a predetermined timing, as in the above-described embodiment, and the second airbag on the deployed first airbag 24 side. The bag 23 is also deployed at the same time as the first airbag, and the occupant can be effectively received by the two airbags 23 and 24, and the first airbag 24 on the side of the deployed second airbag 23 is also the second airbag. After the delay time T3 elapses after the second firing device 12A / 12B of the bag 23 is activated, the deployment is started, and is fully deployed at the same time as the second airbag 23.
24 can effectively receive the crew. The first delay circuits 35 and 36 of the control unit 14B and the second
Omit delay circuits 37 and 38, and OR gates 47 and 48 with OR gate 6
8 and a third delay circuit 66 via an OR gate, and AND gates 50 and 51 are connected to an OR gate 67 and a third delay circuit 6
4 through an OR gate, and when an occupant is on the side collision side, as in the previous embodiment, the first
The ignition devices 13A and 13B and the second ignition devices 12A and 12B on the opposite side may be operated simultaneously. Further, the third delay circuits 64 and 66 are omitted, and the first firing devices 13A and 13B on the same side are replaced with the second firing devices.
It may be operated simultaneously with 12A and 13B.

In the control unit 14B, the ignition devices 12A, 12B, 13A, and 1B are controlled based on the outputs from the sheet sensors 7A and 7B.
3B was activated, but the seat sensors 7A and 7B were omitted, and regardless of the occupant's riding condition, in the event of a side collision, the collision side airbags 24 and 24 and the opposite side airbags 23 and 24 were simultaneously or delayed. May be developed.

Note that the control units 14, 14A, 14B are merely examples, and a configuration incorporating a microcomputer or a programmable controller may be employed.

<Another embodiment> The side collision unit 4 may have the following configuration. The same members are denoted by the same reference numerals, and detailed description thereof will be omitted.

The side collision unit 4A is also provided on each of the left and right doors 2 similarly to the side collision unit 4, but since they are symmetrical, only the right side (driver's seat side) will be described. No.
As shown in FIG. 12, the side collision unit 4A is housed in a housing portion 17 formed between the door inner panel 16 and the door trim 15, similarly to the above-described embodiment, and the base plate 18 is provided on the left end surface of the door inner panel 16. A frame-shaped casing 19A is air-tightly fixed to the left end surface of the base plate 18, and a pair of housing chambers 71 and
2 and a front bag portion 73A and a rear bag portion 7 of a large bag-shaped second airbag 73 are provided in the left portions of the accommodation chambers 71 and 72.
3B (corresponding to the first airbag 24) are housed in a folded state, and the outer peripheral portion of the left end of the second airbag 73 is air-tightly fixed to the outer peripheral portion of the left end of the casing 19A. The rear bag portion 73B is connected to the left end of the partition wall via a fastener 74, and a gas generator 75 is provided in the right portion of the casing 19A across the front and rear storage chambers 71 and 72. A firing device 76 is provided therein.

The gas generator 75 includes a first gas generator 75A that generates gas immediately after the operation of the ignition device 76, and a second gas generator 75A that generates gas after a predetermined time has elapsed after the operation of the ignition device 76.
B, the gas generators 75A and 75B are stored in the storage chambers 71 and 72, respectively, and when the ignition device 76 is activated,
First, the gas generated from the first gas generator 75A causes the rear bag portion 73B to expand as shown by a dashed line, and after a predetermined time, the gas generated from the second gas generator 75B causes the front bag portion 73A to expand. When the gas pressure in the front bag portion 73A and the rear bag portion 73B exceeds a predetermined value, the fastener 74
Is released, and the large second airbag 73 composed of the front bag portion 73A and the rear bag portion 73B is deployed as shown by a three-dot chain line. In the side collision unit 4A, a standard-sized rear airbag portion 73B that fully deploys in a relatively short time can effectively prevent a secondary collision between the occupant on the side collision side and the door 2 and greatly deploys. The second airbag 73 can effectively prevent a tertiary collision between the occupant on the collision side and the door 2 on the opposite side and a secondary collision between the occupant on the opposite side and the door 2 on the collision side.

The left and right second airbags 73 may be deployed at the same time as in the above embodiment, or may be deployed with a delay time. In this embodiment, the airbag unit 4.4A of the type that generates gas by reacting the gas generating agent and the flame enhancer is applied, but the airbag unit of the type that generates gas by another method is used. The present invention can be similarly applied to a vehicle equipped with such a vehicle.

[Brief description of the drawings]

1 shows an embodiment of the present invention. FIG. 1 is a partial perspective view of a vehicle compartment, FIG. 2 is a partially cutaway plan view of an automobile, FIG. 3 is a longitudinal sectional view of the automobile, and FIG. FIG. 3 is a cross-sectional view taken along the line IV-IV,
FIG. 5 is an exploded perspective view of the door, FIG. 6 is a cross-sectional view of the vicinity of the side collision unit, FIG. 7 is a circuit diagram of the control unit, and FIG. Figure,
FIG. 9 is an explanatory diagram of a behavior at the time of a side collision in a single passenger, FIG.
Fig. 7 is a diagram corresponding to Fig. 7 of the control unit according to the first modification, Fig. 11 is a diagram corresponding to Fig. 7 of the control unit according to the second modification, and Fig. 12 is a side collision unit according to another embodiment. FIG. 7 is a diagram corresponding to FIG. 6. 2 ... door, 4 / 4A ... side airbag unit, 5
…… Front seat, 7A ・ 7B …… Seat sensor, 9A ・ 9B
... 1st impact detection sensor, 11A / 11B ... 2nd impact detection sensor, 14 / 14A / 14B ... Control unit, 23/73
…… Second airbag, 24 …… First airbag, 35, 36…
... 1st delay circuit, 37 and 38 ... 2nd delay circuit, 73B ... Rear bag part.

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-255153 (JP, A) JP-A-3-273959 (JP, A) JP-A-1-156155 (JP, A) 117957 (JP, U) Japanese Utility Model 2-23257 (JP, U) Japanese Utility Model 51-31467 (JP, Y2)

Claims (16)

(57) [Claims] 1. An airbag which is inflated and deployed from inside the left and right sides of a vehicle body into a vehicle interior upon a side collision, wherein a first airbag is deployed and a second airbag which is larger than the first airbag is deployed. A pair of left and right side airbag units each provided with an airbag capable of detecting a state of the vehicle, a pair of collision detection sensors for detecting collisions on both sides of the vehicle body, and an output of the collision detection sensor. Deployment control means for causing at least the collision side airbag to be in the first airbag deployment state and the airbag on the side opposite to the collision side to be in the second airbag deployment state. Collision energy absorbing device. 2. The airbag unit according to claim 1, wherein each side airbag unit is provided with a first
The collision energy absorbing device for a vehicle body side portion according to claim 1, further comprising an airbag of (1) and a second airbag larger than the first airbag. 3. The vehicle control apparatus according to claim 1, further comprising: a boarding state detecting unit configured to detect a boarding state of an occupant in the left and right front seats. A timing change means for setting the deployment timing of each of the bags; the timing change means detects a collision by the collision detection sensor when the riding state detection means detects that the occupants are in the left and right front seats, respectively; After the detection, the first airbag on the collision side is immediately deployed and the second airbag on the side opposite to the collision side is deployed with a first delay time. The apparatus for absorbing collision energy to a vehicle body side according to claim 2, wherein: 4. Riding condition detecting means for detecting a riding condition of an occupant on the left and right front seats, wherein the deployment control means determines the right and left air in accordance with the direction of occurrence of a side collision detected by a collision detecting sensor. A timing variable means for setting the deployment timing of each of the bags; the timing variable means is provided after the collision detection by the collision detection sensor when the riding state detection means detects that the occupant is only on the collision side; The first airbag on the collision side is immediately deployed and the second airbag on the opposite side to the collision side is deployed with a second delay time. The apparatus for absorbing collision energy to a vehicle body side according to claim 2. 5. A riding state detecting means for detecting a riding state of an occupant in left and right front seats, wherein the deployment control means is configured to detect a right and left air in accordance with a direction of occurrence of a side collision detected by a collision detecting sensor. Including timing variable means for setting the deployment timing of each bag, the timing variable means, when the riding state detection means detects that the occupant is only on the side opposite to the collision side,
Immediately after the collision is detected by the collision detection sensor, the second
The collision energy absorbing device for a vehicle body side portion according to claim 2, wherein the airbag is configured to be deployed. 6. The timing variable means deploys the second airbag on the side opposite to the collision side and then delays the first airbag on the side opposite to the collision side with a delay of a third delay time. The device for absorbing collision energy to a vehicle body side according to claim 3 or 4, wherein the device is configured to deploy the bag. 7. The third delay time is set such that the first and second airbags fully deploy at substantially the same timing on the side opposite to the collision side. Item 7. An apparatus for absorbing collision energy against a vehicle body side according to Item 6. 8. The apparatus according to claim 1, wherein said variable timing means includes a first side on a collision side.
The collision energy absorbing device for a vehicle body side portion according to claim 3 or 4, wherein the second airbag on the collision side is deployed simultaneously with the deployment of the airbag. 9. A pair of left and right airbags attached to a pair of body members constituting both sides of the vehicle body, and a pair of collision detection means for detecting collisions on both right and left sides of the vehicle body, respectively. A part of each airbag is deployable as a first airbag section into the vehicle interior, and the remaining part is directed toward the vehicle interior as a second airbag section having a size larger than the first airbag section. A pair of left and right airbags that can be deployed by means of the first and second airbags; a timing variable unit that sets the deployment timing of each of the four airbag units according to the direction in which a side collision occurs, based on the detection result of the collision detection unit; Airbag deploying means for deploying the airbag section based on the timing set by the timing varying means. 10. The airbag according to claim 9, wherein each of the airbags is configured to be deployed in a state where the first and second airbag portions are integrated in a final step of the deployment operation. The collision energy absorbing device for a vehicle body side portion described in the above. 11. The apparatus according to claim 9, wherein said variable timing means is configured to deploy the second airbag section after a predetermined time has elapsed since the deployment of the first airbag section. The collision energy absorbing device for a vehicle body side portion described in the above. 12. The variable timing means is configured to, when the collision detecting means detects a collision, simultaneously deploy the first airbag portions of the airbags on the collision side and the side opposite to the collision side. 12. The apparatus for absorbing collision energy to a vehicle body side according to claim 11, wherein: 13. A system for detecting collisions on both sides of a vehicle body, respectively.
A pair of left and right airbag units attached to a pair of vehicle body members forming both sides of the vehicle body, each airbag unit being independently deployable into a vehicle compartment; A pair of left and right airbag units including a pair of airbags, and a timing variable for setting respective deployment timings of the four airbags according to a direction of occurrence of a side collision in response to a detection result of the collision detection unit. Means for deploying the airbag based on the timing set by the timing varying means. 14. The apparatus according to claim 13, wherein the timing varying means is configured to set the deployment timing in consideration of the size of the airbag. . 15. Riding condition detecting means for detecting a riding condition of an occupant in the left and right front seats, wherein the timing variable means moves the riding condition detecting means to the collision side when the collision detecting means detects a collision. 14. The method according to claim 13, wherein when detecting that only the occupant is in the vehicle, the small airbag on the collision side and the large airbag on the side opposite to the collision side are simultaneously deployed. A device for absorbing collision energy to a side of a vehicle body according to claim 1. 16. Riding condition detecting means for detecting a riding condition of an occupant in the left and right front seats, wherein the timing variable means determines that the riding condition detecting means is in contact with the collision side when the collision detecting means detects a collision. 14. The collision energy absorption to the side of the vehicle body according to claim 13, wherein when it is detected that the occupant is riding only on the opposite side, the large airbag on the collision side is deployed. apparatus.