JPH09164906A - Emergency air-bag device for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To expand an air-bag stored in a bumper by the will of a driver in case of emergency. SOLUTION: This device is provided with a bumper 2 having storing rooms 3a, 3b installed to store air-bags 4a, 4b, the air-bags 4a, 4b stored in a no gas state in the storing rooms 3a, 3b installed on the bumper 2, gas generation means 5a, 5b installed connectingly with the air-bags 4a, 4b and installed for expanding the air-bags 4a, 4b and gas plug opening means 7a, 7b, 8, 9a, 9b, installed connectingly with the gas generation means 5a, 5b, for opening the plugs of the gas generation means 5a, 5b near the operation seat of an automobile. When the gas generation means 7a, 7b, 8, 9a, 9b are operated in case of emergency, the air-bags 4a, 4b, are expanded so as to cover the bumper 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air bag system, and more particularly to an emergency air bag system for an automobile in which an air bag accommodated in a bumper is inflated by an intention of a driver in an emergency.

[0002]

2. Description of the Related Art Conventionally, various airbag systems have been developed. FIG. 10 is a schematic diagram schematically showing an example of such an airbag system, and FIG. 11 is an overall configuration diagram schematically showing the airbag system shown in FIG.

In the airbag system 101, an airbag is housed in a state in which a gas is released in a handle 102 and a front panel portion 103 on the passenger side.
When the semiconductor acceleration sensor 104 detects a shock wave generated when a vehicle collides, the airbags 144a, 14a
A cylinder (not shown) connected to 4b is opened, and the airbags 144a and 144b are inflated to ensure the safety of the driver or a passenger sitting in the passenger seat.

[0004]

However, this airbag system 101 automatically inflates the airbags 144a and 144b in the vehicle to protect the safety of the driver and passengers after a collision accident or the like. The purpose was to prevent damage to the car itself.

[0005] For example, there are cases where a collision cannot be avoided even when the driver suddenly steps on the brake because he or she notices that there is a vehicle parked in front of him due to a traffic jam or the like due to a poor visibility. In such a case, the cars collide with each other, and the cars get dented,
There are problems such as quarrels caused by scratches. Also, if a pedestrian or animal suddenly jumps out onto the road and unfortunately hits the pedestrian or animal, if the pedestrian or animal directly contacts the bumper, the bumper will be stiff. There is also a problem that the pedestrian or the animal is seriously damaged, or that the pedestrian or the animal is caught under the bumper and the pedestrian or the animal is seriously damaged.

There is also an accident in which the vehicle falls from the road or the like into the sea or lake due to incorrect operation, and if the vehicle falls into the water, it will be immediately immersed in the water, so There is also the problem of drowning if you do not escape. Further, in the case where the automobile slips or the like, even if there is some time before it collides with the guardrail, the airbag system 101
Since the inflation of the airbags 144a and 144b is entrusted to a sensor such as the semiconductor acceleration sensor 104, the driver determines that the airbags 144a and 14b are free.
Since 4b cannot be inflated, there is no other way than to step on the brakes or operate the steering wheel, and there is also the problem of fear before the collision with the guardrail.

The present invention has been made to solve the above problems and prevents damage to the automobile itself in the event of a collision accident, and damages pedestrians and animals in the event of an unexpected accident. If the vehicle falls to the sea or a lake, the vehicle can float on the surface of the water for a certain period of time so that the driver and passengers inside the vehicle can safely and It is an object of the present invention to provide an emergency airbag device for an automobile that allows the driver to escape more smoothly and to inflate the airbag at the driver's will.

[0008]

An emergency airbag device for an automobile according to claim 1, wherein a bumper having a storage chamber provided for storing the airbag and a storage chamber provided in the bumper are provided. An air bag accommodated in a degassed state, a gas generating means provided to connect to the airbag for inflating the airbag, and a gas generating means near the driver's seat of the automobile. And a gas opening means for opening the gas generating means. When the gas opening means is operated in an emergency, the airbag is inflated to cover the bumper.

The gas generating means is connected to the airbag,
As long as the airbag can be inflated by generating gas, it may be housed in the bumper or the hood of the automobile. The emergency airbag device for a vehicle according to claim 1 is intended to provide a so-called manual airbag system, and when the driver operates the gas opening means in an emergency, the airbag is inflated. Is done.

Further, since the air bag is housed in the chamber of the bumper and covers the bumper when inflated, unfortunately, even if the pedestrian or the animal is hit, the pedestrian or the animal cannot directly hit the hard bumper. Since it does not touch the pedestrian, it can minimize damage to pedestrians and animals. Also, in the car,
Even in the case of a rear-end collision, the hard bumper does not directly hit the other vehicle, but the inflated airbag intervenes, so the airbag functions as a cushion. You can minimize the damage and also the damage to your car.

If the emergency airbag device for an automobile according to claim 1 is provided on both the front bumper and the rear bumper of the automobile, a person inside the vehicle can be more protected in the event of a collision. Can be safely protected. Further, since the airbag is inflated outside the vehicle, a constant buoyancy can be obtained. For this reason, the car can be floated on the surface of the water for a certain period of time (minutes or hours), so that the escape from the inside of the car will be smooth, and the painful accident of being found in a drowned body due to the delayed escape will almost disappear. .

If the emergency airbag device for a vehicle according to claim 1 is provided on both the front bumper and the rear bumper of the vehicle, the front and rear airbags are inflated to thereby provide the vehicle. If the car falls into the water, it will be difficult for the car to submerge. The emergency airbag device for a vehicle according to claim 2, wherein each of the bumper having a pair of storage chambers provided in the center for storing the airbag, and the pair of storage chambers provided in the bumper. A pair of airbags housed in a degassed state, and a pair of gas generating means provided to connect to each of the pair of airbags and to inflate each of the pair of airbags. A gas capping means for opening the pair of gas generating means, which is provided near the driver's seat of the automobile and connected to both of the pair of gas generating means. When operated, the pair of airbags are inflated, and when inflated, each of the pair of airbags jumps out forward from each of the pair of storage chambers provided in the bumper, and from the center portion of the bumper, the automobile To the side Te,
It has a substantially cylindrical shape, and the lower end of the outer peripheral side surface of the cylindrical body is in contact with the ground, and the upper end thereof is the upper part of the bonnet.

Here, "the lower end of the outer peripheral side surface of the cylindrical body is substantially in contact with the ground" means that the lower end of the outer peripheral side surface of the cylindrical body is in contact with the ground surface or before the contact. Claim 2
The vehicle emergency airbag device described in 1 defines the structure of the airbag, is provided with two airbags for one bumper, and corresponds to each airbag,
It is configured to provide a pair of gas generating means.

Therefore, even if one airbag is not opened for some reason, the other airbag is opened. Therefore, one airbag is provided for one bumper, and
Compared to a book equipped with a gas generating means, it is superior in safety and the time to inflate the airbag (deployment time)
Can be shortened, so that rapid expansion is possible.

Further, even if one of the airbags is torn when inflated, the other airbag may be safely inflated. Therefore, if the automobile falls into the water, it is immediately submerged in the water. Excellent safety for avoiding danger. Further, each of the pair of airbags, when inflated, first jumps out from each of the pair of storage chambers provided in the central portion of the bumper.

Each of the pair of accommodating chambers of the bumper is usually covered with a cover in consideration of aesthetics, and therefore each of the pair of airbags will pierce the cover when inflated, but the pair of accommodating chambers will be broken. Is located in the center of the bumper, so the cover is unlikely to scatter to the side of the car. In addition, each of the pair of airbags has a substantially cylindrical shape when inflated from the central portion of the bumper toward the side surface of the vehicle, and the lower end of the outer peripheral side surface of the cylindrical body is in contact with the ground surface. Therefore, unfortunately, even if a pedestrian or an animal is hit, it is difficult for the pedestrian or the animal to be caught under the car.

Therefore, damage to pedestrians and animals can be minimized. Further, since the upper end of the outer peripheral side surface of the columnar body is shaped to substantially match the height of the upper part of the bonnet, even if the airbag is inflated, the driver's visual field can be sufficiently secured. In the automobile emergency airbag device according to claim 3, the gas generating means of the automobile emergency airbag device according to claim 1 or 2 is provided with an air blowing portion, and the gas opening means is a gas generating device. A lid body provided to close the air blowing portion of the means, a lever portion having a predetermined shape, one end connected to the lid body, and the other end connected to a substantially T-shaped lever portion The lever portion having a predetermined shape is provided in the vicinity of the driver's seat, and when the lever portion having a predetermined shape is operated, the lid body is detached from the air blowing portion.

The emergency airbag device for an automobile according to claim 3 proposes a so-called mechanical emergency airbag device, and even when a trouble occurs in the electrical system such as a dead battery, The airbag can be inflated. In the automobile emergency airbag device according to claim 4, the gas generating means of the automobile emergency airbag device according to claim 1 or 2 is provided with an air blowing portion, and the gas opening means is a gas generating device. An electromagnetic valve provided for closing the air blowing portion of the means, and a switch means,
The switch means is provided near the driver's seat, and when the switch means is turned on, the solenoid valve is opened.

The emergency airbag device for an automobile according to claim 4 proposes a so-called electric emergency airbag device. In the present invention, the mechanical claim 3 and the electrical claim 4 can be combined to form a so-called dual safe configuration.
Even if one of the mechanisms fails, the other mechanism can open the airbag, so that the safety can be further improved.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred example of an automobile emergency airbag device according to the present invention will now be described in more detail with reference to the drawings. (Embodiment 1 of the Invention) In this example, a so-called mechanical type emergency airbag device for an automobile will be described.

FIG. 1 is a general schematic view showing an example of an emergency airbag device for an automobile according to the present invention, and FIG. 2 shows an airbag for an emergency airbag device for an automobile according to the present invention. It is a perspective view which shows the expanded state roughly.
In this example, the automobile emergency airbag device according to the present invention is provided on both front and rear bumpers of the automobile.

In the following description, for ease of explanation, the structure of the front bumper (front bumper) of the automobile will be mainly described. In FIG. 1, FIG. 1 (a) schematically shows a state in which an airbag of an emergency airbag device 1 of this automobile is accommodated, and FIG. 1 (b) shows an emergency airbag device 1 2 schematically shows a state in which the airbag is inflated.

In FIG. 1, reference numeral 2 denotes a front bumper of the automobile, and a pair of storage chambers 3a and 3b for storing the airbags 4a and 4b are formed in a central portion M of the bumper 2. The front surface of each of the pair of accommodating chambers 3a and 3b has a bumper 2
Is covered with a pair of cover portions 6a and 6b which are integrally formed. In view of aesthetics, the pair of cover portions 6a and 6b are formed by a groove portion c0 formed from the inner side surface of the bumper 2 toward the outer side surface thereof, as shown in FIG.
The bumper 2 and the pair of cover portions 6a and 6b cannot be discriminated from the outside.

As shown in FIG. 3 (b), the cover portions 6a, 6b are provided with a plurality of groove portions c1 formed from the inner side surface of the bumper 2 toward the outer side surface thereof in a matrix form vertically and horizontally. When the airbags 4a, 4b are inflated and pierce the cover portions 6a, 6b, even if the fragments of the cover portions 6a, 6b hit a passerby, the passerby has a predetermined size so as not to be injured. It is designed to be a square block fragment.

A pair of airbags 4a and 4b are accommodated in the pair of accommodating chambers 3a and 3b in a degassed state. The materials for the airbags 4a and 4b are:
Although various materials can be selected, for example, but not limited to, carbon is used as a material for lifeboats, etc. in consideration of mechanical strength, wear resistance, water repellency, airtightness, etc. It is preferable to use a composite member of reinforcing fibers such as fibers and resins such as fluororesin and nylon.

In each of the airbags 4a and 4b, a compression cylinder filled with nitrogen gas or the like is used as a gas generating means 5a and 5b for expanding the airbags 4a and 4b. It is provided to connect. In this example, each of the compression cylinders 5a and 5b is provided outside the pair of accommodation chambers 3a and 3b in the bumper 2, and the air blowing portion N5 of the compression cylinders 5a and 5b is provided.
a and N5b each have an air bag 4a, 4
It is provided so as to pass through b.

The air blowing portions N5a and N5b of the compression cylinders 5a and 5b respectively have air blowing portions N5a and N5.
Lids 7a and 7b are provided to close b.
On the other hand, as shown in FIG. 4, in the vicinity of the driver's seat of the automobile,
A lever portion 8 having a predetermined shape is provided. In this example,
The lever portion 8 is provided so as to be attached to the engine hood lever (bonnet opener) 21.

Wires 9a and 9b are provided between the lids 7a and 7b and the lever portion 8, respectively.
One ends E9a1 and E9b1 of a and 9b are lids 7a and 7b.
And the other ends E9a2 and E9b2 are connected to the lever portion 8 and the lever portion 8 is in front (see FIG. 1 (b)).
(In the direction indicated by the arrow), the lids 7a and 7b are disengaged from the air blowing portions N5a and N5b, and the compression cylinder 5
Gas is instantaneously injected into the airbags 4a and 4b from each of a and 5b, the airbags 4a and 4b expand and pierce the cover portions 6a and 6b, and first, a pair of housings provided in the bumper 2 are accommodated. From each of the chambers 3a and 3b, it protrudes to the front of the bumper 2, and then, as shown in FIG. 1 (b), it becomes a substantially cylindrical body from the central portion M of the bumper 2 toward the side direction of the automobile. ing.

In FIG. 1, 31 is the wires 9a and 9b.
3 shows a terminal member for positioning the. FIG. 5 is a side view of the inflated state of the airbag 4a as seen from the side of the automobile. When the airbag 4a is inflated, as shown in FIG. 4, the lower end d1 of the outer peripheral side surface of the cylindrical body of the airbag 4a is substantially in contact with the ground.

More specifically, the lower end d1 of the outer peripheral side surface of the cylindrical body of the airbag 4a is in contact with the ground or is close to the ground before the contact (in FIG. 4, the lower end of the outer peripheral side surface of the cylindrical body). If the distance between d1 and the ground is Δ, Δ ≧ 0
Have a relationship). Then, the upper end d2 of the airbag 4a
However, the shape is substantially the same as the height H of the upper surface of the bonnet 35.

FIG. 6 is a view for explaining a preferred example of folding the airbag 4a. In FIG. 6, FIG.
It is the top view which looked at the airbag 4a from the upper side, and the folding lines (F2, F3, F4) are each shown by the broken line. Further, FIG. 6B is a cross-sectional view taken along line VI-VI in FIG. 6A, schematically showing a state in which the region R1 is folded, and FIG. 6 (a)
It is a schematic diagram which shows the state by which the part of the area | region R2 and the area | region R3 was folded.

When the gas is extracted from the inside of the airbag 4a, the fold line portion shown by the broken line F1 in FIG. 5 can be folded inward, and the center portion R1 can be folded inward as shown in FIG.
As shown in (b), the portion R2 that is folded into a bellows structure along the folding line F2 and extends outward of the bumper 2 has a folding structure according to the folding line F3 as shown in FIG. 6 (c). In the bent portion R3, the side L1 on one side of the region R1 that is close to the bumper 2 is folded.
And a folding line F4 radiating outward with the intersection of the region R2 and one side L2 of the region R2 close to the bumper 2 as a center, as shown in FIG. It is folded into.

When the lever portion 8 is pulled toward the front in an emergency, first, the lid 7a of the compression cylinder 5a comes off, and the compression cylinder 5a
Gas flows into the central portion R1 from the air blowing portion N5a of a, the central portion R1 expands forward, and the cover portion 6
break through a. Then, the gas flows into the regions R3 and R2, and the airbag 4a is inflated as shown in FIG. 1 (b) or FIG. 2 (a).

The airbag 4b is the same as the airbag 4a except that its direction is symmetrical, and therefore the description thereof is omitted here. As described above, in the emergency airbag device 1, the driver can operate the lever portion 8 in an emergency.
When is pulled toward you, the cover portions 6a and 6b of the bumper 2 are pierced so that the airbags 4a and 4b are inflated.

When the airbags 4a and 4b are inflated, the bumper 2 is covered with the airbags 4a and 4b. Therefore, unfortunately, even if a pedestrian or an animal is hit, Since the animal does not directly contact the hard bumper 2, damage to pedestrians and animals can be minimized. In addition, even if the vehicle is hit later, the hard bumper 2 does not directly hit the other vehicle,
Since it hits with the inflated airbags 4a and 4b interposed, the airbags 4a and 4b function as cushions, so that the damage to the other vehicle can be minimized, and the damage to the own vehicle can be suppressed. Can be kept to a minimum.

Since the airbags 4a and 4b are opened outside the vehicle, a constant buoyancy can be obtained by inflating the airbags 4a and 4b when the vehicle falls into the sea or lake. Since the car can be floated on the surface of the water for a certain period of time (minutes or hours), the escape from the inside of the car will be smooth, and the painful accident of being found in a drowned body due to the delayed escape will almost disappear.

Further, one bumper 2 is provided with two airbags 4a and 4b, and each airbag 4 is provided.
Since the pair of compression cylinders 5a and 5b are provided corresponding to a and 4b, for some reason, the airbag 4
Even if either one of a and 4b is not opened, the other airbag is opened, so one bumper is provided with one airbag and one gas generating means is provided. In addition to being excellent in safety, the time for inflation of the airbag (deployment time) can be shortened, so that rapid inflation is possible.

In addition, when one of the airbags 4a and 4b is torn when inflated, the other airbag may be safely inflated. Therefore, when the automobile falls into the water,
It has excellent safety in avoiding danger of immediate immersion in water. Further, each of the pair of airbags 4a and 4b is
When inflated, first, each of the pair of accommodating chambers 3a and 3b provided in the central portion M of the bumper 2 is projected to the front of the bumper 2.

Then, the pair of accommodating chambers 3a, 3 of the bumper 2
In a normal state, each of b is covered with the cover portions 6a and 6b, and therefore has a good appearance. On the other hand, in an emergency, when the lever portion 8 is pulled toward you, each of the airbags 4a and 4b is inflated and the cover portions 6a and 6b are inflated.
However, the storage chambers 3a and 3b have the bumper 2
Since it is provided in the central portion M of the
It is difficult for the debris to scatter to the side of the car.

Furthermore, since the cover portions 6a and 6b are formed with a plurality of vertical and horizontal grooves, the cover portions 6a and 6b are
Since a plurality of substantially rectangular block pieces are formed according to the plurality of vertical and horizontal grooves, even if the block pieces hit a passerby or the like, it is difficult to injure the passerby or the like. When inflated, each of the pair of airbags 4a and 4b becomes a substantially cylindrical body from the central portion M of the bumper 2 toward the side surface of the vehicle, and the lower end d1 of the outer peripheral side surface of the cylindrical body is on the ground surface. Unfortunately, it is difficult to get pedestrians and animals under the car even if they are hit by pedestrians and animals. Therefore, damage to pedestrians and animals can be minimized.

Further, since the upper end d2 of the outer peripheral side surface of the columnar body has a shape substantially corresponding to the height H of the upper portion of the bonnet 35, even if the airbags 4a and 4b are inflated, the driver's visual field is sufficiently wide. Can be secured. Further, the emergency airbag device 1 includes, as gas opening means, lid bodies 7a and 7b provided to close the air blowing portions N5a and N5b of the gas generating means 5a and 5b, and a lever portion having a predetermined shape. 8, one end E9a1, E9b1 is connected to each of the lids 7a, 7b, and the other end E9a2, E9b2 is provided with wires 9a, 9b connected to the lever portion 8 of a predetermined shape, so-called mechanical type Therefore, the airbags 4a and 4b can be inflated even when a trouble occurs in the electrical system such as the exhaustion of the battery.

In this example, the gas generating means 5a and 5b are used.
However, the gas generating means 5a and 5b may be provided inside the hood 35 of the automobile as shown in FIG. It should be noted that, in this example, for ease of explanation, the description has centered on the configuration of the front bumper 2 of the automobile, but the emergency airbag device for an automobile of the present invention has the same configuration as above. ,
As shown in FIG. 2, it is also applicable to a bumper (rear bumper) 32 at the rear of the automobile.

If the emergency airbag device 1 for a vehicle according to the present invention is provided on both the front and rear bumpers 2, 32 of the vehicle as shown in FIG. 2, the front and rear bumpers 2, 32 are provided. By inflating the airbags 4a, 4b, 34a, 34b, it is possible to more safely protect the person inside the vehicle in the event of a collision accident or the like. Further, in this example, in consideration of the center of gravity of the automobile, the buoyancy of the airbags 4a and 4b accommodated in the front bumper 2 at the time of inflation,
Airbags 34a, 3 accommodated in the rear bumper 32
The buoyancy of 4b during expansion is adjusted.

With this configuration, when the vehicle falls into the sea or lake, the vehicle can be floated so as to be substantially parallel to the water surface. Therefore, the air in the bonnet 35, the air in the luggage compartment 36, and the air in the vehicle interior 37 are unlikely to leak to the outside, so that in addition to the buoyancy of the airbag, the buoyancy of these air makes the vehicle longer and generally parallel to the water surface. Can be made to float.

Therefore, when a car falls into the sea or a lake, people inside the car can be evacuated more safely. The vehicle shown in this example is an FF vehicle, an FR vehicle, or the like, in which the engine is mounted on the front portion (in the hood) of the vehicle, so the center of gravity is on the front portion of the vehicle.
Therefore, as shown in the figure, the airbags 4a and 4b accommodated in the front bumper (front bumper) 2 have a volume larger than that of the airbag accommodated in the rear bumper (rear bumper) when inflated. I am using a large one. (Second Embodiment of the Invention) In this example, a so-called electric emergency airbag device will be described.

FIG. 8 is an overall configuration diagram schematically showing an example of a so-called electric emergency airbag device. This emergency airbag device 11 has the same configuration as the emergency airbag device 1 except for the following points, and therefore, corresponding members are designated by the corresponding reference numerals and the description thereof will be omitted. .

The emergency airbag device 11 includes a lid 7
Electromagnetic valves 17a and 17b are provided instead of a and 7b. As shown in FIG. 9, the lever portion 8 is provided near the driver's seat.
Instead, a switch 18 electrically connected to the solenoid valves 17a and 17b is provided, and when the switch 18 is turned on, the airbags 4a and 4b are inflated.

The present invention can also be achieved by the electric system as described above. Further, if the electric system and the mechanical system are combined based on the dual safe concept, one of the mechanisms will fail. However, since the airbag can be opened by the other mechanism, the safety can be further improved. Further, the vehicle may be combined with an air bag system as shown in FIGS. 10 and 11, and further, the acceleration sensor 104 shown in FIG. 11 may be attached to the acceleration sensor 104 even if the lever portion 8 or the switch 18 is not operated. It should be noted that the airbags 4a and 4b may be automatically inflated in this way.

[0049]

According to the emergency airbag device of the present invention, the airbag is inflated when the driver operates the gas opening means in an emergency, so that the airbag is based on the driver's intention. Thus, the airbag can be inflated. Also, since the airbag is housed in the chamber of the bumper and covers the bumper when inflated,
Unfortunately, even if the pedestrian or the animal is hit, the pedestrian or the animal does not directly contact the hard bumper, so that the damage to the pedestrian or the animal can be minimized.

Further, even if the vehicle is hit in the rear, the hard bumper does not directly hit the other vehicle, but the inflated airbag intervenes, so that the airbag functions as a cushion. Since it works, it is possible to minimize damage to the opponent's car and also to minimize damage to your own car. Further, since the airbag is inflated outside the vehicle, a constant buoyancy can be obtained. For this reason, the car can be floated on the surface of the water for a certain period of time (minutes or hours), so that the escape from the inside of the car will be smooth, and the painful accident of being found in a drowned body due to the delayed escape will almost disappear. .

If the emergency airbag device for an automobile according to claim 1 is provided on both the front bumper and the rear bumper of the automobile, a person inside the vehicle can be more protected in the event of a collision. Can be safely protected. If the vehicle emergency airbag device according to claim 1 is provided in both the front bumper and the rear bumper of the vehicle, the vehicle is submerged by inflating the front and rear airbags. It also has the effect of making it difficult for the car to submerge in water if it falls.

The automobile emergency airbag device according to a second aspect of the invention defines the structure of the airbag, and is provided with two airbags for one bumper and is compatible with each airbag. Then, a pair of gas generating means is provided. For this reason, even if one airbag is not opened for some reason, the other airbag is opened. Therefore, one airbag is provided for one bumper, and
Compared to a book equipped with a gas generating means, it is superior in safety and the time to inflate the airbag (deployment time)
Can be shortened, so that rapid expansion is possible.

Further, even if one of the airbags is torn during inflation, the other airbag may be safely inflated. Therefore, if the automobile falls into the water, it is immediately submerged in the water. Excellent safety for avoiding danger. Further, each of the pair of airbags, when inflated, first jumps out from each of the pair of storage chambers provided in the central portion of the bumper.

Each of the pair of accommodating chambers of the bumper is normally covered with a cover in view of aesthetics, and therefore each of the pair of airbags will pierce the cover when inflated, but the pair of accommodating chambers will Is located in the center of the bumper, so the cover is unlikely to scatter to the side of the car. In addition, each of the pair of airbags has a substantially cylindrical shape when inflated from the central portion of the bumper toward the side surface of the vehicle, and the lower end of the outer peripheral side surface of the cylindrical body is in contact with the ground surface. Therefore, unfortunately, even if a pedestrian or an animal is hit, it is difficult for the pedestrian or the animal to be caught under the car. Therefore, damage to pedestrians and animals can be minimized.

Further, since the upper end of the outer peripheral side surface of the columnar body has a shape which substantially coincides with the height of the upper part of the bonnet, even if the airbag is inflated, the driver's visual field can be sufficiently secured. Since the so-called mechanical device is adopted as the gas opening means in the automobile emergency airbag device according to the third aspect, the airbag can be used even when a trouble occurs in the electrical system such as a dead battery. Can be inflated.

The emergency airbag device for an automobile according to claim 4 proposes a so-called electric emergency airbag device.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram schematically showing an example of an automobile emergency airbag device according to the present invention, and FIG.
FIG. 1 (b) schematically shows a state in which the airbag of the emergency airbag device of this automobile is accommodated.
1 schematically shows a state where an airbag of an emergency airbag device is inflated.

FIG. 2 is a perspective view schematically showing a state in which an airbag of an automobile emergency airbag device according to the present invention is inflated, and FIG. 2 (a) is an inflated airbag seen from the front of the automobile. FIG. 2B shows the state in which the airbag is inflated as seen from the rear of the automobile.

3A and 3B are perspective views schematically showing the bumper centering around a cover portion, FIG. 3A is a view of the bumper seen from the outside, and FIG. 3B is a partial view of the bumper from the back side. Shown is a cutaway view.

FIG. 4 is a diagram schematically showing a mounting state of a lever portion.

FIG. 5 is a schematic side view of the inflated state of the airbag as seen from the side of the automobile.

6A and 6B are views illustrating a preferred example of folding the airbag, FIG. 6A is a plan view of the airbag seen from above, and FIG. 6B is FIG. 6A. Medium, VI-V
6 is a cross-sectional view taken along the line I, schematically showing a state in which a region R1 is folded, and FIG.
It is a schematic diagram which shows the state in which the part of area | region R2 and R3 was folded in (a).

FIG. 7 is an overall configuration diagram schematically showing an example of an automobile emergency airbag device according to the present invention, and FIG.
FIG. 7 (b) schematically shows a state in which the airbag of the emergency airbag device of this automobile is accommodated.
1 schematically shows a state where an airbag of an emergency airbag device is inflated.

FIG. 8 is an overall configuration diagram schematically showing an example of an automobile emergency airbag device according to the present invention, and FIG.
FIG. 8 (b) schematically shows a state in which the airbag of the emergency airbag device of this automobile is accommodated.
1 schematically shows a state where an airbag of an emergency airbag device is inflated.

FIG. 9 is a diagram schematically showing a mounting state of a switch.

FIG. 10 is a schematic diagram schematically showing an example of a conventional airbag system.

11 is an overall configuration diagram schematically showing the airbag system shown in FIG.

[Explanation of symbols]

 1, 11 Automobile emergency airbag device 2 Bumpers 3a, 3b Storage chambers 4a, 4b Airbags 5a, 5b Gas generating means 6a, 6b Covers 7a, 7b Covers 8 Levers 9a, 9b Wires 18 Switches N5a, N5b Air outlet

Claims (4)

[Claims] 1. A bumper having an accommodation chamber provided for accommodating an airbag, an airbag accommodated in a degassed state in an accommodation chamber provided in the bumper, and connected to the airbag. And a gas generating means provided for inflating the airbag, and a gas generating means provided near the driver's seat of the vehicle and connected to the gas generating means for opening the gas generating means. An emergency airbag device for an automobile, comprising: a gas opening means, wherein the airbag is inflated when the gas opening means is operated in an emergency to cover the bumper. 2. A bumper having a pair of accommodating chambers provided in the center for accommodating an airbag, and a pair of accommodating chambers provided in the bumper, each containing a gas in a degassed state. And a pair of airbags connected to each of the pair of airbags and provided for inflating each of the pair of airbags, and the vicinity of the driver's seat of the automobile. A gas opening means provided to be connected to both of the pair of gas generating means and for opening the pair of gas generating means, and in the event of an emergency operating the gas opening means, A pair of airbags are configured to inflate, and when inflated, each of the pair of airbags jumps forward from each of a pair of accommodation chambers provided in the bumper, and a side surface of the automobile from a central portion of the bumper. In the direction Selfish,
An emergency airbag device for a vehicle, which has a substantially cylindrical shape, and a lower end of an outer peripheral side surface of the cylindrical body is in contact with the ground, and an upper end thereof is substantially in conformity with a height of an upper surface of a hood. 3. The gas generating means includes an air blowing portion, and the gas opening means includes a lid body provided to close the air blowing portion of the gas generating means, and a lever portion having a predetermined shape. , One end is connected to the lid body, and the other end is provided with wire means connected to the substantially T-shaped lever portion, and the lever portion having the predetermined shape is provided near a driver's seat. The emergency airbag device for a vehicle according to claim 1 or 2, wherein the lid is configured to be disengaged from the air blowing portion when the lever portion having the predetermined shape is operated. 4. The gas generating means includes an air blowing portion, and the gas opening means includes a solenoid valve provided to close the air blowing portion of the gas generating means, and a switch means. The emergency airbag device for a vehicle according to claim 1 or 2, wherein the switch means is provided in the vicinity of a driver's seat, and the solenoid valve is opened when the switch means is turned on.