JP2006069349A - Airbag and protection device for non-occupant - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To quickly move a front hood of an automobile by an airbag. <P>SOLUTION: The folded airbag 21 is stored under the rear end of the hood 3. The airbag 21 partitions a first air chamber 41 and a second air chamber 42 by a bulkhead part 36. The first air chamber 41 and the second air chamber 42 are communicated each other only through a communication part 38. When a vehicle body 1 collides with a pedestrian, an inflator 22 is started to supply gas to the first air chamber 41 of the airbag 21. The gas stays in the first air chamber 41 at the initial stage of the deployment to deploy the first air chamber. The rear end part of the hood 3 is pushed up by a predetermined dimension with the pressure of the deployment to secure the space where the hood 3 is deformed. Afterward, the gas is supplied to the second air chamber 42 through the communication part 38, and the pillar covering part 46 and a cowl covering part of the second air chamber 42 are deployed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a non-occupant protection airbag and a non-occupant protection device that protects a colliding non-occupant when a collision between a non-occupant such as a pedestrian and a vehicle is unavoidable.

2. Description of the Related Art Conventionally, there has been known a pedestrian protection device provided with a so-called pedestrian protection airbag that reduces a shock to a pedestrian when a collision between a vehicle and a pedestrian is unavoidable. This pedestrian protection device supports the rear end portion of the hood at the front of the vehicle body so as to be lifted, and stores a bag-like airbag folded under the rear end of the hood. And when this pedestrian protection device detects a collision between a vehicle and a pedestrian, the gas is supplied to deploy the airbag, the rear end of the hood is lifted by this airbag, and the walking When the person collides with the hood, the space where the hood deforms is secured to improve shock absorption characteristics. The airbag covers the pillars on both sides of the windshield, and the pedestrian's head is pillared. The impact is reduced when it collides with the part. The airbag has a portion that lifts the hood with a deploying force and protrudes upward to cover the pillar portion, and is formed in a substantially U-shaped bag shape when viewed from the front (for example, a patent) Reference 1).
JP 2000-264146 A (first page, FIG. 3-4)

  In the pedestrian protection device described above, in order to secure a space for deformation of the hood and to smoothly and quickly deploy it from the gap between the hood and the cowl portion where the portion covering the pillar portion of the airbag is lifted, a predetermined hood is used. It is necessary to lift it quickly by a distance of 5 mm and to hold it stably at the lifted position. However, the weight of the hood is not small, and the hood can be lifted quickly to prevent it from bouncing back while pushing the airbag in the process of deployment. The supporting mechanism has a complicated structure or has a problem that it is necessary to increase the capacity of the inflator for supplying gas to the airbag.

  The present invention has been made in view of such a point, and an object thereof is to provide an airbag and a non-occupant protection device that can move a hood quickly by an airbag and can be stably supported.

  The airbag according to claim 1 includes a hood provided at a front portion of the vehicle, a windshield positioned behind the hood, and pillar portions that support both side portions of the windshield. An airbag which is stored at a lower position of the rear portion, is supplied with gas, is deployed, presses the hood to move upward, and covers at least a part of the pillar portion, and the airbag includes a gas Is supplied and deployed, and a first air chamber that presses and moves the hood, and a gas is supplied and deployed through the first air chamber to cover at least a part of the pillar portion. The first air chamber, the partition wall partitioning the first air chamber and the second air chamber, and the first air chamber and the second air chamber are communicated with each other. A communication section that allows the introduction of gas into the air chamber It is intended.

  And in this structure, when a non-occupant collides with a vehicle, gas will be supplied to the 1st air chamber of an airbag, this 1st air chamber will expand | deploy, and a hood will be pushed and moved upwards. Next, gas is supplied from the first air chamber to the second air chamber via the communication portion, and the second air chamber expands to cover at least a part of the pillar portion. When a non-occupant who has collided with the front of the vehicle and collided with the hood further collides with the hood, a space required for the deformation of the hood is secured, and the shock absorption characteristics are improved. In addition, at least a part of the pillar portion is covered with the airbag, and the impact when the non-occupant collides with the pillar portion is reduced. The first air chamber and the second air chamber of the airbag are partitioned by the partition wall, and gas is introduced from the first air chamber to the second air chamber via the communication portion, so that the initial deployment stage In addition, the first air chamber quickly expands, the hood can be quickly moved to a predetermined position, and can be stably held at the predetermined position, and the shock absorption characteristics due to deformation of the hood can be easily improved. And non-occupants are effectively protected. Furthermore, since the hood is stably held at a predetermined position, the second air chamber can be smoothly deployed without interfering with other members from the gap below the rear end of the hood, and the non-occupant can effectively Protected.

  The non-occupant protection device according to claim 2 includes a deformable hood provided at a front portion of the vehicle, a windshield positioned behind the hood, and pillar portions that support both side portions of the windshield. 2. The airbag according to claim 1, which is disposed below the rear portion of the hood of the vehicle, an inflator for supplying gas to the airbag, and a control for operating the inflator by detecting a collision with a non-occupant. Means and a support part for supporting the rear part of the hood so as to be movable upward.

  In this configuration, since the airbag according to claim 1 is provided, when the non-occupant collides with the vehicle, the hood is quickly moved to a predetermined position and stably supported, and the non-occupant collides with the vehicle. Is effectively protected by the deformation of the hood and the airbag covering the pillar portion.

  The non-occupant protection device according to claim 3 is the non-occupant protection device according to claim 2, wherein the support portions are provided on both sides of the hood, and the first air chamber of the airbag is the support portion. A hood pushing portion that expands between the hoods and moves the hood by pressing, and communicates with the hood pushing portion, and expands to the rear side and the outside of the support portion so as to be deployed. And a cowl covering portion for covering.

  In this configuration, the hood is quickly moved by pressing the hood with the hood pushing portion that is developed between the support portions, and the cowl covering portion is expanded to the outside from the hood pushing portion. The occupant is effectively protected by covering the portion and preventing a collision between a non-occupant and a member provided on the cowl portion.

  According to the present invention, the first air chamber and the second air chamber of the airbag are partitioned by the partition wall, and the gas is introduced from the first air chamber to the second air chamber via the communication portion. In the initial stage of deployment, the first air chamber can be quickly deployed, and the hood can be quickly moved to a predetermined position, can be stably held at a predetermined position, and the shock absorption characteristics due to deformation of the hood can be easily improved, Non-occupants can be effectively protected. Furthermore, since the hood can be stably held at a predetermined position, the second air chamber can be smoothly deployed without interfering with other members from the gap below the rear end of the hood, and at least a part of the pillar portion can be Covering with an air bag effectively protects non-occupants.

  Hereinafter, an embodiment of an airbag and a non-occupant protection device of the present invention will be described with reference to the drawings.

  In FIGS. 1 and 2, reference numeral 1 denotes a vehicle body of a car, which is a vehicle. The vehicle body 1 includes a hood 3 that covers a front engine room 2, and a windshield that covers a vehicle room 4 located behind the engine room 2. And a cowl top cover 8 that covers the cowl portion 7 between the engine room 2 and the vehicle compartment 4 are attached to the windshield 5. A pedestrian protection device 10 which is an occupant protection device is provided. Hereinafter, directions such as forward (arrow F direction), upward (arrow U direction), and both side directions (arrow W direction) will be described with reference to the straight traveling direction of the vehicle body 1.

  The hood 3 is also called a bonnet hood or a front hood, and is provided at the front of the vehicle body 1 and formed of one or more metal plates, and constitutes a so-called pedestrian injury reducing body. And when a pedestrian collides, it is easily deformed to absorb the impact. In addition, the hood 3 is provided so as to be able to be opened and closed with a pair of support portions 12 which are hinge mechanisms provided on both side portions near the rear end portion as fulcrums, that is, rotating shafts, and during operation of the pedestrian protection device 10, Each support portion 12 supports the rear end portion of the hood 3 so as to be raised by a predetermined distance.

  The windshield 5 is supported on both sides by A pillars 14 as pillar portions, and the lower surface near the front end is supported by a cowl top panel 16 via a seal portion 15.

  Further, the cowl portion 7 is also called an air box or the like, and is provided in a bowl shape with an upper opening between the cowl top panel 16 and the vehicle body panel 17 positioned in front of the cowl top panel 16. A cowl top cover 8 is attached to cover. The cowl unit 7 is provided with a motor for driving a wiper and the like, and is connected to an air intake unit of an air conditioner. Further, the cowl top cover 8 is supported by being fitted to the windshield 5 at the rear end portion, and is supported on a support base portion 18 provided on the vehicle body panel 17.

  The pedestrian protection device 10 is a so-called pedestrian protection airbag device, and includes a bag-like airbag 21 that is folded and stored in a cowl portion 7 below the rear end portion of the hood 3 on the front side of the vehicle body 1. ing. Then, by supplying gas to the airbag 21 and deploying it, the rear end of the hood 3 is lifted to secure a deformation area below the hood 3, improving the shock absorption characteristics of the hood 3 and deploying. The airbag 21 covers at least a part of the upper surface of the cowl portion 7 and the front surface of the A pillar 14. That is, the pedestrian protection device 10 includes an airbag 21, an inflator 22 that supplies gas to the airbag 21, a retainer 24 that fixes the airbag 21 and the inflator 22, and a case 25 that houses these members. And a control device (not shown).

  The airbag 21 is formed in a bag shape having an outer shell formed by stitching the outer peripheral portions of two base fabrics together with an outer peripheral suture line 31, and as a whole, a base portion 33 extending in both sides, and both sides of the base portion 33 The projecting portion 34 projecting from the end in the direction forms a substantially U-shape. Further, inside the outer shell, along the longitudinal direction of the base portion 33, a partition wall portion 36 formed by the base fabric is sewn to each base fabric constituting the outer shell by an inner suture line 37. Further, in the vicinity of both end portions of the partition wall portion 36, a communication portion 38 which is a ventilation portion having a circular hole shape or the like is formed. The partition wall 36 allows the base 33 inside the airbag 21 in the present embodiment to be substantially airtight to the first air chamber 41 and the second air chamber 42 except for the communication portion 38. It is partitioned. In other words, the first air chamber 41 and the second air chamber 42 are formed to communicate with each other only through the communication portion 38.

  The first air chamber 41 is a front air chamber that is at least partially positioned below the hood 3 when deployed, and a hood pushing portion 43 that pushes up the hood 3 and a hood pushing portion 43 behind the hood pushing portion 43. The first air chamber 41 accommodates the inflator 22 and the retainer 24 in pairs on both sides. Further, the first air chamber 41 as a whole is formed so that the dimension in the front-rear direction is substantially constant and the both side directions are in the longitudinal direction. It is formed as an inclined surface 45 that expands toward the surface. That is, as shown in FIG. 2, in the portion where the gas G flows from the first air chamber 41 to the second air chamber 42, the angle θ formed between the front side of the first air chamber 41 and the inclined surface 45 , Larger than the right angle (θ> 90). That is, the dimension in both directions is expanded from the hood pushing portion 43 toward the cowl covering portion 44, and the width dimension of the cowl covering portion 44 of the first air chamber 41 is formed larger than the hood pushing portion 43. Yes. Further, the inclined surface 45 is smoothly continuous with both sides of the second air chamber 42 so that the width dimension of the second air chamber 42 is larger than the cowl covering portion 44 of the first air chamber 41. Is formed. The second air chamber 42 is a rear air chamber located on the rear side of the first air chamber 41, and includes a pillar covering portion 46 constituted by each projecting portion 34 and an upper portion of the base portion 33. And a cowl covering portion 47. Moreover, although not shown in figure, the reinforcement cloth called a flameproof cloth etc. is piled up and sewed on these base fabrics as needed.

  Each inflator 22 is a gas generator, and includes a substantially cylindrical main body 22a, and a gas injection part 22b is provided on one end side of the main body 22a. The inflator 22 is supplied with an ignition signal to a connector (not shown) to react the propellant filled inside, or to release the gas stored in the internal cylinder, etc. Gas is injected from a plurality of holes provided on the peripheral surface. In this embodiment, the two inflators 22 are arranged so that the gas injection portions 22b face opposite sides.

  The retainer 24 is an inflator fixture including a retainer main body 49 formed by bending a metal plate and a bolt 50 fixed to the retainer main body 49. The retainer main body 49 fixes the inflator 22 and guides the gas injected from the gas injection unit 22b. A nut 51 is screwed onto the bolt 50.

  Further, the case 25 includes a case main body portion 54 that has a groove shape with an upper opening, and a lid portion 55 that covers the upper opening of the case main body portion 54. In the present embodiment, the case main body 54 is formed integrally with the cowl top cover 8. On the other hand, the lid portion 55 is separate from the cowl top cover 8 and has a tear line 56 as a breakable breakable portion that is a weak portion along the longitudinal direction.

  Further, the connector of each inflator 22 is connected to a control device (not shown) via a harness. The control device includes a CPU and the like, and includes a plurality of sensors as detection means, detects a collision between the pedestrian and the vehicle body 1, and operates each inflator 22.

  Further, the support portion 12 is located on both sides of the case 25, that is, on both sides of the airbag 21 that is folded and stored, and connects the vehicle body panel 17 side and the vicinity of the rear end portion of the hood 3. And each support part 12, for example, while connecting one end of the link shaft of two elongate metal plates so that rotation is possible at a shaft part, the other end of one link shaft is connected to the body panel 17 side, The other end of the other link shaft is connected to the hood 3 side. When the normal hood 3 is opened and closed, the shaft portion of the support portion 12 serves as a rotation shaft, and the front end portion of the hood 3 rotates upward. On the other hand, when the pedestrian protection device 10 is activated and an upward force is applied to the rear end portion of the hood 3, the shaft portion rotates and the other end of each link shaft rotates as a rotation shaft, The rear end portion of the hood 3 is moved upward by a predetermined dimension, for example, about 5 cm, and can be rotated about the front end side as a fulcrum.

  Then, the assembly process of the pedestrian protection device 10 is performed by inserting an assembly in which the inflator 22 and the retainer 24 are combined into the first air chamber 41 of the airbag 21 and attaching the bolt 50 of the retainer 24 to the airbag 21. The airbag 21 is folded into a predetermined shape after being pulled out. Then, the folded airbag 21 is inserted into the case main body 54, and the bolt 50 is passed through the cowl top cover 8 and the support base 18 of the vehicle body panel 17, so that the nut 51 extends from the lower side of the support base 18 to the bolt 50. Screw in and tighten. Then, the retainer 24 fixes the front end of the airbag 21 and the inflator 22 together with the cowl top cover 8 to the support base portion 18 of the vehicle body panel 17. Then, the upper opening of the case body 54 is covered, the lid 55 is attached, and the inflator 22 and the control device are electrically connected by a harness, thereby protecting the pedestrian as shown in FIG. A device 10 is configured.

  Next, the operation of the pedestrian protection device 10 will be described.

  First, as shown in FIG. 1A, when the control device detects a collision between the front portion of the vehicle body 1 and a pedestrian in a state where the folded airbag 21 is stored in the case 25, the control device Electric power is supplied to activate the inflator 22. Then, this inflator 22 supplies the gas G from the gas injection part 22b. At this time, the inner side of the airbag 21 is divided into a first air chamber 41 and a second air chamber 42 by a partition wall 36, and the first air chamber 41 and the second air chamber 42 are separated from each other. As shown in FIG. 1B, in the initial state of deployment, the inflator 22 communicates with each other only through the communication portion 38 having a large ventilation resistance, and the inflator 22 is disposed in the first air chamber 41. The gas G supplied from the inflator 22 stays in the first air chamber 41 and expands the first air chamber 41. Then, the rear end portion of the hood 3 is pushed up by a predetermined dimension by the pressure of the development. In this state, a gap is secured between the hood 3 and the member in the engine room 2 by the hood pushing portion 43 of the first air chamber 41, and the cowl covering portion 44 of the first air chamber 41 is used for the cowl. Part of the part 7 is covered.

  Further, in a state where the first air chamber 41 is sufficiently expanded, the gas G is supplied from the first air chamber 41 to the second air chamber 42 through the communication portions 38 provided in the vicinity of both end portions in both sides. As shown in FIG. 1C, the pillar covering portion 46 and the cowl covering portion 47 of the second air chamber 42 are developed. The pillar covering portion 46 covers part or all of the A pillar 14, and the cowl covering portion 47 covers the wiper of the cowl portion 7, the lower end portion of the windshield 5, and the like.

  At this time, the partition wall 36 that partitions the first air chamber 41 and the second air chamber 42 regulates the height dimension when the airbag 21 is deployed, and as shown in FIG. A constricted portion N is formed in the deployed airbag 21 located below the rear end portion. That is, in FIG. 1B, a constricted portion N is formed almost directly below the rear end portion of the hood 3, and the first air chamber 41 in front F bulges from the partition wall portion 36, so that the hood 3 is moved upward. Push up. On the other hand, the base portion of the second air chamber 42 is located in the constricted portion N, and is spaced from the hood 3 so that it is not affected substantially by the hood 3 and is smooth as shown in FIG. Development becomes possible.

  The position of the constricted portion N coincides with the position corresponding to the rear end portion of the hood 3 and, for example, as shown by the dimension d in FIG. It is desirable to be positioned slightly forward F in the vicinity. That is, at a position slightly forward F from the position corresponding to the rear end portion of the hood 3, the height of the airbag 21 relative to the pushed-up position of the hood 3, that is, the top height of the first air chamber 41, is slightly forward Since the height dimension of the airbag 21 of F, that is, the height dimension of the airbag 21 in the vicinity of the partition wall 36 is reduced, the constricted portion N is positioned slightly forward of the lower end of the hood 3. That is, the starting point of deployment of the pillar covering portion 46 is slightly forward from the lower end of the hood 3 and is separated from the rear end portion of the hood 3 lifted by the airbag 21. On the other hand, when the partition portion 36 is not provided and the constricted portion N is not formed, the airbag 21 is located on the side of the A pillar 14 from the lower side of the hood 3 as indicated by an imaginary line X in FIGS. Therefore, no space is formed between the hood 3 and the hood 3 swells along the shape of the lower surface of the hood 3. It's not easy. On the other hand, by providing the partition wall portion 36 and forming the constricted portion N when the airbag 21 is deployed, the pillar covering portion 46 of the airbag 21 extending rearward can be deployed smoothly, easily and quickly.

  Then, when a pedestrian who has been lifted up and collides with the hood 3 with the airbag 21 deployed, the hood 3 is deformed with a sufficient stroke and exhibits a predetermined shock absorption characteristic. Reduce the impact on the. Further, the A pillar 14 and the uneven members of the cowl portion 7 are covered by the second air chamber 42, so that collision between these members and the pedestrian is avoided, and the pedestrian is protected.

  In the airbag 21, the hood pushing portion 43 of the first air chamber 41 is located between the support portions 12 on both sides, and the cowl covering portion 44 and the second air chamber 42 of the first air chamber 41. Is deployed behind the first air chamber 41 and bulges laterally from the support portion 12.

  Thus, according to the present embodiment, in the so-called pedestrian protection airbag (pedestrian airbag) disposed in the cowl portion 7 of the automobile, the inside of the airbag 21 is set as a single air chamber. In the present embodiment, a partition wall 36 is provided inside the airbag 21, and a first air chamber 41 for lifting the hood 3, the A pillar 14, and the windshield 5 are provided. And the second air chamber 42 covering the cowl portion 7 including the lower end of the air bag 21, the air bag 21 quickly lifts the hood 3 with sufficient pressure, and the second air chamber 42 to the first air chamber 41. In addition, it is difficult for the gas to return, the position of the hood 3 lifted by the airbag 21 holding the pressure can be stably held, and the bounce of the hood 3 can be suppressed. Furthermore, since the hood 3 can be lifted quickly and stably, a stable gap can be secured between the rear end of the hood 3 and the cowl top cover 8 below the hood 3, that is, the hood 3 can be lifted sufficiently. The second air chamber 42 is quickly and smoothly expanded from the gap below the formed hood 3 without interfering with surrounding members, and the cowl portion 7 including the A pillar 14 and the lower end portion of the windshield 5 is provided. Can be covered.

  Further, the hood pushing portion 43 of the first air chamber 41 is developed in a space having a relatively small dimension in the both-side direction W between the support portions 12 on both sides, and the cowl covering portion 44 of the first air chamber 41. The second air chamber 42 is developed in a space having a dimension in the both-side direction W larger than that of the hood pushing portion 43, but the side portion of the first air chamber 41 is inclined to expand outward toward the rear. Since the surface 45 is used, as shown in FIG. 2, gas smoothly flows in the first air chamber 41 and from the first air chamber 41 to the second air chamber 42, and the support portion 12 deploys the airbag 21. The portion outside the support portion 12 can be smoothly and rapidly deployed without interfering with the above. That is, if the dimension of the airbag 21 in the direction W on both sides is larger than the dimension between the support parts 12 for the part located between the support parts 12 on both sides, the airbag 21 is supported when the airbag 21 is deployed. Interference with the part 12 makes it difficult to achieve desired development characteristics. Further, if both sides of the airbag 21 are formed in a stepped shape or the like, the gas flow in the airbag 21 is likely to be disturbed, making it difficult to achieve desired deployment characteristics.

  In the above-described embodiment, each protruding portion 34, that is, each pillar covering portion 46 is inclined in a direction in which the front end sides are slightly closer to each other in a state where the airbag 21 is spread on a plane. It is not limited to the configuration, but may be arranged substantially perpendicular to the base 33 or may be inclined so as to expand outward from the tip side as shown in FIG. Further, in the present embodiment, the communication portion 38 is configured by a plurality of circular holes formed in the partition wall portion 36, and each of the circular holes is directed to the pillar covering portion 46 and the other is directed to the cowl covering portion 47. However, other shapes such as a slit shape can be adopted.

  Further, in the above embodiment, the partition wall portion 36 is basically configured by arranging a single base fabric over the entire length along the side direction W at the intermediate position in the front-rear direction of the base portion 33. The configuration is not limited to the above, and a plurality of base fabrics may be used, or partition walls 36 may be provided at boundary portions between the base portion 33 and the plurality of projecting portions 34, respectively. For example, as shown in FIG. 4, a base cloth having a predetermined width is disposed at the base end of the projecting portion 34, that is, at the boundary between the base portion 33 and the two projecting portions 34, and the base fabric. Are sewn to the respective base fabrics constituting the outer shell of the airbag 21 with the stitching line 60 to form partition portions 61 that perform gas inflow regulation and height dimension regulation when the airbag 21 is deployed. A gap between 61 and each base fabric constituting the outer shell can be a communication portion 62 through which gas flows. In this configuration, the first air chamber 41, which is the front side of the partition wall portion 61, is continuously configured with the hood pushing portion 43 and the cowl covering portion 44, and on the rear side of the partition wall portion 61, Only the pillar covering portion 46 is configured.

  Further, in each of the above-described embodiments, a gas guiding means for guiding the gas flow can be provided in the air chamber in the airbag 21, so that desired deployment characteristics can be realized. For example, as shown in FIG. 5, a wide base fabric panel is arranged in the first air chamber 41 of the airbag 21, and the gas guide means 66 is sewn to each base fabric constituting the outer shell of the airbag 21. It is also possible to guide the gas to the communication part 62.

  The present invention can be applied to a vehicle having a hood at the front.

It is explanatory drawing which shows one Embodiment of the non-occupant protection apparatus of this invention, (a) is before deployment of an airbag, (b) is the deployment initial stage of an airbag, (c) is in the state following (b). is there. It is explanatory drawing of a non-occupant protection apparatus same as the above. It is explanatory drawing which shows other embodiment of the non-occupant protection apparatus of this invention. It is explanatory drawing which shows other embodiment of the non-occupant protection apparatus of this invention. It is explanatory drawing which shows other embodiment of the non-occupant protection apparatus of this invention.

Explanation of symbols

3 Hood 5 Windshield as windshield 7 Cowl
10 Pedestrian protection device as non-occupant protection device
12 Support section
14 A-pillar as pillar
21 airbag
22 Inflator
36 Bulkhead
38 Communication part
41 First air chamber
42 Second air chamber
43 Hood pusher
44 cowl cover

Claims (3)

A hood provided at the front of the vehicle, a windshield positioned behind the hood, and pillars that support both sides of the windshield are positioned and stored below the rear of the hood of the vehicle. An airbag that is supplied with gas, expands, presses the hood and moves upward, and covers at least a part of the pillar portion;
The airbag is
A first air chamber that is supplied with a gas, expands, and presses and moves the hood;
A gas is supplied through the first air chamber and expands, and a second air chamber covering at least a part of the pillar portion;
A partition wall partitioning the first air chamber and the second air chamber;
An air bag comprising: a communication portion that communicates the first air chamber and the second air chamber and allows gas to be introduced from the first air chamber to the second air chamber. . The vehicle is provided with a deformable hood provided at the front of the vehicle, a windshield located behind the hood, and pillars that support both sides of the windshield, and located below the rear of the hood of the vehicle. The airbag according to claim 1 disposed by:
An inflator for supplying gas to the airbag;
Control means for detecting a collision with a non-occupant and operating the inflator;
A non-occupant protection device comprising: a support portion that supports a rear portion of the hood so as to be movable upward. The support portion is provided on both sides of the hood,
A first air chamber of the airbag is deployed between the support portions and presses the hood to move the hood pushing portion;
The non-occupant according to claim 2, further comprising a cowl covering portion that communicates with the hood pushing portion, expands and expands rearward and outward from the support portion, and covers a cowl portion of the vehicle. Protective device.

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