JP5005408B2 - Airbag device - Google Patents

Description

  The present invention relates to an airbag device that deploys an airbag along, for example, a window on a side portion of a vehicle cabin.

  2. Description of the Related Art Conventionally, a so-called curtain airbag device that deploys along a window portion of a door on a side portion of an automobile compartment is known as an airbag device including an airbag that is inflated and deployed by introducing gas. The airbag of such an airbag device is normally folded in an elongated shape and is disposed along the upper edge of the window on the side of the passenger compartment. When an impact such as a side collision or rollover is received, gas is supplied from the inflator and the airbag is deployed, and the airbag is deployed downward along the side windows and the like.

  About such an airbag apparatus, the structure which covered the folded airbag with the pillar garnish which is an interior material of a motor vehicle is known (for example, refer patent document 1). The pillar garnish is made of plastic, and is configured to be elastically deformed when the airbag is deployed so as not to inhibit the deployment of the airbag. Further, a retaining metal fitting, a clip, a bolt, and the like are attached to the back surface of the pillar garnish, and the pillar garnish is attached to the vehicle body by, for example, engaging the retaining metal fitting in the metal fitting locking hole. Further, in this configuration, when the airbag is deployed, the clip is released, and the retaining fitting moves along the keyhole-shaped fitting locking hole so that the pillar garnish is greatly opened.

However, in the configuration in which the plastic pillar garnish that is the interior material is elastically deformed, for example, in an extremely high temperature environment, the plastic softens and its characteristics tend to change, and covers an airbag that is normally folded with good appearance. At the same time, there is a problem that it is not always easy to set an appropriate rigidity to move smoothly when the airbag is deployed. Further, in the configuration in which the pillar garnish is moved by releasing the engagement, there is a problem that it is not always easy to move the pillar garnish smoothly over the entire length when the airbag is deployed.
JP 11-321477 A (FIGS. 2, 3, and 8)

  As described above, there is a demand for a structure that can smoothly deploy a cover body that protects an airbag when the airbag is deployed, with respect to a long and narrow airbag.

  The present invention has been made in view of the above points, and provides an airbag apparatus that includes a cover body that covers an airbag and that can easily realize preferable characteristics that the cover body smoothly moves when the airbag is deployed. With the goal.

  The airbag device according to claim 1 is an airbag that is inflated and deployed by introducing gas from an elongated folded state, a cover body that covers the folded airbag in the longitudinal direction, and a member to be attached A bracket provided with a fixing portion to be attached to the mounting member and a mounting receiving portion that is spaced apart from the attached member; a cover supporting portion that supports the cover body and supports the cover body; an attachment portion that is attached to the mounting receiving portion; And a plastically deformable metal connecting portion that connects the cover support portion and the attachment portion, and at least one of the cover support portion and the connection portion is located on the attached member side of the attachment receiving portion. And an attachment member.

  In this configuration, when the airbag pushes the cover body when the airbag is deployed, the connecting portion of the mounting member is plastically deformed, allowing the cover body to move, and the airbag is deployed. Because the connecting part is made of plastically deformable metal, the change in characteristics due to temperature change is small compared to the resin structure, and the cover body covers the airbag stably with good appearance in normal times and the airbag is deployed. Sometimes a favorable characteristic that the cover body moves smoothly is easily realized. Since at least one of the cover support portion and the connection portion is located on the attached member side of the attachment portion, when the cover support portion and the connection portion move by a predetermined amount when the airbag is deployed, the attachment reception portion or the attachment reception portion The amount of movement of the cover body is appropriately regulated.

  The airbag device according to claim 2 is the airbag device according to claim 1, wherein the cover body includes a cover bent portion bent along the longitudinal direction, and the attachment member is made of a plastically deformable metal. In addition, a cover support portion that is bent along the cover bending portion is provided, and a deformation restriction portion that restricts deformation facing the cover bending portion is provided.

  In this configuration, when the cover support portion and the connecting portion move by a predetermined amount when the airbag is deployed, the deformation restricting portion comes into contact with the cover bending portion and the amount of movement of the cover body is appropriately restricted. Next, the cover bent portion in contact with the deformation restricting portion and the cover support portion made of a plastically deformable metal along the cover bent portion are deformed to absorb the impact, and the behavior of the cover body becomes smooth.

  The airbag device according to claim 3 is the airbag device according to claim 1 or 2, wherein the connecting portion is formed of a plate material integrally continuous with at least a part of each of the attachment portion and the support portion. .

  In this configuration, the cover body covers the airbag with good appearance and stability in a normal state, and a preferable characteristic that the cover body moves smoothly when the airbag is deployed is easily realized.

  According to a fourth aspect of the present invention, in the airbag apparatus according to any one of the first to third aspects, the bracket mounting receiving portion is provided with an accessory mounting portion.

  And in this structure, while using the bracket of an airbag apparatus as a bracket which attaches another accessory, a structure is simplified and the workability | operativity of the attachment work to a to-be-attached member improves.

  The airbag device according to claim 5 is the airbag device according to any one of claims 1 to 4, wherein the cover body is an interior material of the vehicle, and a fixing portion of the bracket is provided on a side portion of the vehicle compartment. Positioned and fixed to the vehicle body, the airbag is deployed along the side of the passenger compartment.

  And in this structure, while providing the airbag folded long and narrow, the structure suitable for the airbag apparatus for the side part of a vehicle interior from which the cover body which covers this airbag becomes an interior material of a vehicle is provided.

  According to the airbag device of the present invention, a preferable characteristic that the cover body covers the airbag with a good appearance and stability during normal operation and the cover body moves smoothly when the airbag is deployed is easily realized. When the airbag is deployed, the amount of movement of the cover body can be appropriately regulated.

  Hereinafter, an embodiment of an airbag device of the present invention will be described with reference to the drawings.

  1 and 2, reference numeral 1 denotes an airbag device. The airbag device 1 includes an airbag 2, which is also called a curtain airbag or a side-impact airbag. As shown in FIG. Sometimes it is arranged on the roof side part 5 as a storage position of the compartment 4 of the vehicle body 3 of the vehicle, which is a vehicle, and when it receives a shock from a side collision or rolls over, it is shown in FIGS. As shown in Fig. 2, the sheet is developed in a planar shape on the side of the occupant to protect the occupant as a protected object. In the following description, the directions such as the vertical direction and the front-rear direction are described with reference to the straight traveling direction of the vehicle, and the inner side and the outer side are described as the directions outward from the passenger compartment 4 on the both sides.

  The vehicle body 3 includes a front seat and a rear seat in which a passenger can sit in a passenger compartment 4, and doors (not shown) each having a window portion are provided corresponding to the front seat and the rear seat. ing. Further, on both sides of the passenger compartment 4, a front pillar called A pillar, a center pillar called B pillar, and a rear pillar called C pillar are provided in order from the front side. These windows, doors, and each pillar constitute a predetermined surface 14 as a side portion on both sides of the passenger compartment 4. Further, on the upper side of these pillars, that is, on the upper edge portion which is one edge portion of the window portion, a vehicle body panel 15 is provided as a mounting surface portion constituting a mounting member also called a roof side rail. A ceiling panel as a ceiling portion is supported through the gap. A front glass (front windshield) is provided on the front side of the front pillars on both sides, and a rear glass is provided on the rear side of the rear pillars on both sides. The roof side portion 5 serving as a storage position is a part or the entire length of the front pillar extending from the edge portions on both sides of the ceiling panel in a direction intersecting with the edge portion, and if necessary, one of the rear pillars. It is set to the part which covers the part or the full length.

  A part of the vehicle body panel 15 and the ceiling panel on the side of the passenger compartment 4 is covered with a headlining (roofing) 16 which is a soft or deformable ceiling plate and an interior decoration panel together with a part of each pillar. Yes. And the 1st thru | or 3rd pillar garnish which is an interior material is attached to the full length of each pillar or the one part compartment 4 side, respectively, and these pillars are covered. Further, in the present embodiment, a resin garnish 18 as an interior material, which is a cover body constituting the airbag device 1, is provided in a portion related to the rear pillar from the front pillar through the roof side portion 5.

  In other words, the airbag device 1 can be called a curtain airbag module. In addition to the airbag 2 and the garnish 18, the airbag device 1 is a gas generator that supplies gas to the airbag 2, and the airbag device 1 is not shown. One or a plurality of brackets 26 attached to the panel 15, one or a plurality of attachment members 27 attached to the brackets 26, and a protector 28 that is a guide body arranged along the longitudinal direction of the folded airbag 2. A module is configured and disposed on the roof side portion 5 along the vehicle body panel 15.

  And although the airbag 2 is typically shown in each drawing, a single or a plurality of base fabrics are combined, for example, one base fabric is folded, or two base fabrics are overlapped and joined, A cylinder body (not shown) that includes an airbag main body portion 31 formed in a flat bag shape, attachment piece portions 32 extended from a plurality of locations of the airbag main body portion 31 and the like, and is folded into an elongated shape by a predetermined folding method. The shape is held by a shape holding member such as a shape or a string. The airbag 2 is a long so-called front / rear seat airbag that can protect the passengers in the front and rear seats. The airbag body 31 is inflated in a bag shape in which gas flows in and expands. And a gas introduction port that is located at the rear upper end of the airbag body 31 and communicates the inflating part to the outside. A plurality of attachment pieces 32 of the airbag 2 are continuously formed on the upper edge portion of the airbag body 31. Each attachment piece 32 is formed integrally with the base fabric portion constituting the airbag main body 31, protrudes in a tongue shape from the airbag main body 31, and has a circular hole shape. A hole 32a is formed. Although not shown, a tether belt that connects the airbag 2 and the vicinity of the front end portion of the front pillar is connected to the front end portion of the airbag 2.

  The inflator includes a columnar main body that is housed in a position behind or above the rear seat, and is connected to the gas inlet of the airbag 2 through a connecting pipe.

  The garnish 18 can also be called a roof side trim, and is integrally formed of an elastically deformable synthetic resin. The garnish 18 covers the folded airbag 2 and is exposed in the passenger compartment 4. And a garnish side attachment portion 42 that is integrally connected to the upper edge portion of the garnish main body portion 41. The garnish body 41 is smoothly curved outward and covers the folded airbag 2, vehicle body panel 15, and the like so as not to be exposed in the passenger compartment 4. The garnish side mounting portion 42 has a substantially L-shaped cross section in this embodiment, and a flat plate-like first cover mounting piece portion 44 extending outward from the garnish main body portion 41, A flat cover-like second cover attachment piece 46 connected to one cover attachment piece 44 via a cover bent part 45 bent upward 90 degrees, and the garnish side attachment part 42 covers the head lining 16. It has come to be. That is, the cover bent portion 45 has a shape that is recessed outward and downward at a position covered by the headlining 16. In addition, circular attachment holes 48 are formed in the second cover attachment piece 46 of the garnish side attachment part 42 at a predetermined interval.

  For example, three brackets 26 having the same shape are used on one side of the vehicle. Each bracket 26 is made of metal, for example, formed by pressing an iron plate, and a bracket receiving portion 51 that is a flat plate-shaped bracket body portion, and a bracket that is integrally continuous with both ends of the mounting receiving portion 51. Side attachment portion 52. As shown in FIG. 2, the attachment receiving portion 51 is formed with a pair of circular hole bracket attachment portions 54 at predetermined intervals. A circular insertion hole 55 having a diameter larger than that of the bracket mounting portion 54 is formed between the bracket mounting portions 54 that make a pair. Further, an accessory mounting portion 56 having a square hole shape is formed between the pair of bracket mounting portions 54 forming a pair and the group of adjacent bracket mounting portions 54 forming a pair. Further, the bracket side attaching portion 52 includes a flat plate-like fixing portion 57 and a bracket side connecting portion 58 that integrally connects the fixing portion 57 and the attachment receiving portion 51. Each fixing portion 57 is formed with a circular fixing hole 59. Each bracket 26 is formed to have a relatively large rigidity so as not to be deformed even when the airbag 2 is deployed.

  In the present embodiment, three attachment members 27 having the same shape are used for each bracket 26 in the present embodiment. Each attachment member 27 can also be called an iron plate hinge or a connecting member, and is integrally formed by pressing an iron plate made of metal, for example, a plate material. Each attachment member 27 is supported as an attachment portion 63, a connection portion 64 integrally extending from the upper edge portion of the attachment portion 63, and a cover support portion extending from the tip of each connection portion 64. Part 65. The mounting portion 63 has a flat plate shape whose longitudinal direction is the front-rear direction. The mounting portion 63 is aligned with the bracket mounting portion 54 and the insertion hole 55 of the bracket 26, and is a circular hole-shaped mounting receiving portion. 66 and an insertion hole 67 are formed. Further, the lower edge portion of the attachment portion 63 is bent in a substantially L-shaped cross section toward the passenger compartment 4 side, and a deformation restricting portion 68 is formed. The support portion 65 also serves as an airbag support portion for supporting the airbag 2. The support portion bending portion 69 is bent about 90 degrees in a substantially L-shaped cross section toward the vehicle compartment 4 side, and the connection portion 64. A first support portion 71 that is continuous to the first support portion 71 and a second support portion 72 that is continuous to the first support portion 71 via a support portion bending portion 69 are formed. Further, the first support portion 71 is formed with a circular hole-shaped fixed support portion 73.

  The connecting portion 64 of the mounting member 27 can also be called a hinge portion, has a smooth curved surface and is curved in a substantially U-shaped cross section toward the outer lower side, and the first portion of the mounting portion 63 and the support portion 65. The support portions 71 are formed to face each other in parallel with a predetermined interval. Furthermore, the vertical dimension of the first support part 71 of the support part 65 is larger than the vertical dimension of the attachment part 63, and the deformation restricting part 68 formed on the lower edge of the attachment part 63 The second support portion 72 of the support portion 65 is positioned so as to be spaced downward.

  Further, the mounting member 27 is formed to be relatively less rigid than each bracket 26, and at the time of deployment of the airbag 2, at least the portion of the connecting portion 64 is plastically deformed by receiving the force when the airbag 2 is deployed. It is possible. Each attachment receiving portion 66 is attached with an attachment 74 such as a screw or a rivet, and the attachment member 27 is attached to the bracket 26 by the attachment 74. Each fixing support 73 is attached with a fixture 75 such as a screw or a rivet, and the garnish 18 and the airbag 2 are attached to the attachment member 27 by this fixture 75.

  Further, the protector 28 is formed integrally with a synthetic resin in a substantially L-shaped cross section so as to follow substantially the entire length or a part of the folded airbag 2. That is, the protector 28 is integrally formed with a protector substrate portion 81 having a long flat plate shape and a protector side plate portion 82 extending downward from an outer edge portion of the protector substrate portion 81. And the protector board | substrate part 81 is the part along the upper side of the folded airbag 2, and the groove-shaped attachment piece part insertion part 83 along the longitudinal direction in which the attachment piece part 32 of the airbag 2 is penetrated is formed. Yes. Further, the protector side plate portion 82 is a portion along the outside of the folded airbag 2, and the edge portion at the lower end is inclined and bent toward the inside of the passenger compartment 4 as shown in FIG. 1.

  Next, the assembly operation of the airbag device 1 and the attachment operation to the vehicle will be described.

  First, the attachment member 27 is attached to each bracket 26. This operation is performed by overlapping the mounting portion 63 of the mounting member 27 on the outer surface of the mounting receiving portion 51 of the bracket 26 and fixing the mounting tool 74 inserted into the bracket mounting portion 54 to the mounting receiving portion 66. In this state, the deformation restricting portion 68 of the attachment member 27 is slightly separated from the lower end portion of the attachment receiving portion 51 of the bracket 26.

  Next, the airbag 2, the protector 28, and the garnish 18 that are folded in advance are attached to the attachment member 27. In this operation, the garnish side attachment portion 42 of the garnish 18 is aligned with the support portion 65 of the attachment member 27, that is, the support portion bending portion 69 and the cover bending portion 45 are aligned, and the outer side surface of the first support portion 71. The second cover mounting piece 46 is placed along the second support portion 72 and the first cover mounting piece 44 is placed along the lower surface of the second support portion 72. Further, the airbag 2 is placed along the protector 28, the attachment pieces 32 of the airbag 2 are pulled out upward from the attachment piece insertion portion 83, and the attachment pieces 32 are arranged outside the second cover attachment piece 46. Or along the inside or both sides. In this state, a mounting tool 75 such as a screw or a rivet inserted through the insertion holes 55 and 67 of the bracket 26 and the mounting member 27 is inserted into the fixed support portion 73, the mounting hole 48, and the mounting hole 32a and is tightened. The garnish side attachment portion 42 of the garnish 18 and the attachment piece portion 32 of the airbag 2 are fixed to the support portion 65. In this state, the airbag 2 is stably held along the outer surface of the garnish main body 41 of the garnish 18, that is, between the rear side viewed from the vehicle compartment 4 and the vehicle compartment 4 side of the protector 28. . That is, in this state, a module in which the airbag 2, the garnish 18, the protector 28, and the attachment member 27 are combined with each other is configured.

  Furthermore, an assist grip (not shown) as an accessory is attached to the accessory attachment portion 56 of the bracket 26 as necessary. In this state, a module is configured in which the airbag device 1 is further combined with an assist grip as an accessory.

  The bracket 26 is fixed to the vehicle body panel 15 by inserting a fixing tool such as a screw or rivet (not shown) into the fixing hole 59 and attached to the vehicle body, and the inflator is attached either before or after the bracket 26, that is, the unit mounting operation. The connecting pipe is connected to the airbag 2 and the inflator is electrically connected to a control device provided on the side of the vehicle body 3, thereby completing the operation of attaching the airbag device 1 and further accessories to the vehicle body 3.

  When the airbag device 1 and the head lining 16 are attached to the vehicle body 3, the garnish side attachment portion 42 of the garnish 18 is covered with the head lining 16 and is not exposed to the vehicle compartment 4 side. The surface and the surface of the garnish main body portion 41 are substantially flush with each other.

  Next, the deployment operation of the airbag 2 will be described.

  In the event of a side collision or rollover of the vehicle, the inflator is actuated by the control device, and the gas injected from the inflator is introduced into the inflating portion in the airbag main body 31 from the gas inlet through the connecting pipe. Then, the inflating part of the airbag main body 31 is inflated and deployed from the state shown in FIG. 1A while pushing the garnish 18 away from the state shown in FIGS. It quickly expands and deploys in the form of a curtain approximately downward in the specified direction, covers the window and center pillar, etc., mitigates the impact of collision between the occupant and the center pillar, and prevents the occupant from releasing outside the vehicle. Protect.

  When the airbag 2 is inflated and deployed, the resin garnish 18 is elastically deformed, and the attachment member 27 is plastically deformed to move the garnish 18 to form a protruding opening of the airbag 2. The bag 2 is smoothly deployed. More specifically, first, the connecting portion 64 curved in a substantially U-shaped cross section of the mounting member 27 made of iron plate is plastically deformed so as to close the U-shape, and the garnish 18 is rotated while absorbing the impact. When the garnish 18 moves or expands by a predetermined amount, the deformation restricting portion 68 comes into contact with the cover bent portion 45 of the garnish 18 and functions as a stopper to suppress the movement of the garnish 18. Next, the deformation restricting portion 68 directly supported by the bracket 26 is slightly plastically deformed, and the support portion 65 of the mounting member 27 together with the garnish side mounting portion 42 of the garnish 18 is plastically deformed to absorb the impact and garnish Rotate 18

  Thus, according to the present embodiment, the airbag device 1 is a module in which the airbag 2 that is a curtain airbag and the garnish 18 that is a roof side trim are modularized. When the bag 2 pushes the garnish 18, the attachment member 27 is plastically deformed, allowing the garnish 18 to move, forming a protruding opening of the airbag 2, and smoothly deploying the airbag 2. And, since the mounting member 27 is made of a plastically deformable metal, that is, formed by bending a metal plate, a change in characteristics accompanying a temperature change from a low temperature to a high temperature is small compared to a resin configuration, that is, The hinge function can be maintained without being softened even at high temperatures, and the garnish 18 normally covers the airbag 2 with good appearance and stability at the normal time, and the garnish 18 smoothly moves by an appropriate dimension at an appropriate speed when the airbag 2 is deployed. Preferred characteristics can be easily realized.

  Further, the mounting member 27 extends so as to bend outward from the mounting portion 63 supported by the mounting receiving portion 51 of the bracket 26, and the support portion 65 is located outside the mounting receiving portion 51 from the mounting portion 63, that is, on the vehicle body panel 15 side. Therefore, when the airbag 2 is deployed, the attachment member 27 is deformed by a predetermined amount, that is, when the garnish 18 is moved by a predetermined amount, the garnish 18 comes into contact with the deformation restricting portion 68 and the movement amount of the garnish 18 is increased. It can be regulated appropriately.

  After the garnish 18 comes into contact with the deformation restricting portion 68, the deformation restricting portion 68 is slightly plastically deformed, and the cover bent portion 45 that is in contact with the deformation restricting portion 68 and the plastic along the cover bent portion 45 The deformable metal support part 65 is deformed to absorb the impact, so to speak, the impact force of the airbag 2 is absorbed and relaxed in a multistage manner, and the behavior of the garnish 18 can be made smooth and the garnish 18 is protected. it can.

  Furthermore, the portion where the deformation restricting portion 68 abuts is the cover bent portion 45 where the garnish 18 is bent, and the deformation restricting portion 68 functions as a guide portion for guiding the deformation direction of the garnish 18 and stabilizes the unfolding behavior of the garnish 18. Can be made.

  Furthermore, the behavior of the garnish 18 can be easily adjusted by setting the width dimension of the connecting portion 64, and the manufacturing cost of the airbag device 1 can be reduced.

  Further, since the protector 28 is arranged along the folded airbag 2, it is possible to suppress the interference between the airbag 2 and the member on the vehicle body 3 side during the storage and deployment process before deployment, and to protect the airbag 2. The deployment direction of the airbag 2 can be guided in the deployment process.

  In the present embodiment, the air bag 2, the garnish 18, the bracket 26, the mounting member 27, and the protector 28 are integrally combined to form a module, and the number of parts to be mounted on the vehicle body 3 side is reduced so that the mounting work can be performed. This can be done easily, and the cost of the work of attaching the airbag device 1 to the vehicle body 3 can be reduced. That is, the airbag apparatus 1 that is a curtain airbag including the long airbag 2 that is folded long and narrow requires work above the shoulder, but according to the present embodiment, the work efficiency is good and the vehicle Assembling workability can be improved, installation work can be facilitated, work time above the shoulder can be reduced, and the burden on the operator can be reduced.

  In addition, the attachment receiving portion 51 of the bracket 26 is provided with an accessory mounting portion 56 so that an assist grip as an accessory can be attached. Therefore, the structure can be simplified by using the members together, and the manufacturing cost can be reduced. The workability of the mounting work to the vehicle body 3 can be improved. In particular, the bracket 26 of the present embodiment protrudes from the vehicle body panel 15 of the vehicle body 3 to the vehicle compartment 4 side, and the member constituting the airbag device 1 on the vehicle compartment 4 side of the mounting receiving portion 51 of the bracket 26. Since this does not protrude, it is suitable as a member for attaching an assist grip.

  Further, since the garnish 18 is formed of resin, characteristics such as appearance and shock absorption characteristics suitable as an interior material can be easily realized as compared with a structure formed of an iron plate or the like. Then, by supporting the resin garnish 18 that is light and elastically deformed with a plurality of plastically deformable metal connecting portions 64, the garnish 18 is uniformly deployed along the longitudinal direction, that is, at each part. It is possible to reduce the time difference of development of

  In this way, the curtain airbag having the long airbag 2 that is folded into a long and thin shape and covered with the garnish 18 that is the interior material can reduce the manufacturing cost and easily has good deployment characteristics. Can be.

  In the above embodiment, the garnish side mounting portion 42 of the garnish 18 has a substantially L-shaped cross section having a first cover mounting piece portion 44 and a second cover mounting piece portion 46, and supports the mounting member 27. The first support portion 71 and the second support portion 72 of the portion 65 are arranged along the first support portion 71, but the configuration is not limited to this. For example, as in the embodiment shown in FIGS. 3A, 3B and 3C, only the first cover mounting piece 44 is formed without forming the second cover mounting piece 46, The configuration can be simplified by attaching the first cover attachment piece 44 to the second support portion 72 of the support portion 65 of the attachment member 27. In this configuration, the deformation restricting portion 68 can abut against the support portion 65 of the garnish 18 or the attachment member 27 and can appropriately restrict the movement amount of the garnish 18.

  In addition, the deformation restricting portion 68 is formed by bending the lower edge of the attachment portion 63 of the attachment member 27 into a substantially L-shaped cross section, but is not limited to this configuration, and the lower edge of the attachment portion 63 It is also possible to use the deformation restricting portion 68 without bending.

  Further, in each of the embodiments described above, the garnish 18 can be formed in the longitudinal direction or the like in addition to being integrally formed over the entire length of the airbag 2.

  On the other hand, a plurality of mounting members 27 and brackets 26 are used and are divided in the longitudinal direction, so that the mounting members 27 and the brackets 26 can be configured to be continuous in the longitudinal direction.

  Further, the attachment member 27 can be formed integrally with the bracket 26.

  Further, the attachment piece 32 of the airbag 2 can be attached to the attachment portion 63 side in addition to being attached to the support portion 65 side of the attachment member 27.

  The airbag 2 is not limited to a configuration in which the airbag 2 is deployed from the upper side to the lower side and covers a side window portion of the automobile, and an appropriate airbag device that inflates and deploys in a planar shape, that is, in a curtain shape along a predetermined surface. Applicable to.

  The present invention can be applied to, for example, an airbag apparatus called a curtain airbag apparatus that is deployed along a side window of an automobile.

It is an explanatory view showing an embodiment of the airbag device of the present invention, (a) is a state before deployment of the airbag, (b) is a state during the deployment of the airbag, (c) is (b) It is a continuing state. It is a disassembled perspective view of a part of airbag apparatus same as the above. It is explanatory drawing which shows other embodiment of the airbag apparatus of this invention, (a) is the state before deployment of an airbag, (b) is the state in the middle of deployment of an airbag, (c) is (b) It is the state following.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Airbag apparatus 2 Airbag 3 Car body 4 Car compartment
14 Predetermined surface as side
15 Car body panel as mounted member
18 Garnish as a cover
26 Bracket
27 Mounting material
45 Cover bent part
51 Mounting bracket
56 Accessory mounting
57 Fixed part
63 Mounting part
64 Connection
65 Support as cover support
68 Deformation restriction

Claims (5)

An airbag that is inflated and deployed by introducing gas from an elongated folded state;
A cover body covering the airbag in a folded state along the longitudinal direction;
A bracket provided with a fixing portion attached to the attached member and an attachment receiving portion spaced from the attached member;
A cover support part for supporting the airbag and supporting the cover body, an attachment part attached to the attachment receiving part, and a plastically deformable metal connection part for connecting the cover support part and the attachment part And at least one of the cover support portion and the connecting portion includes an attachment member positioned on the attached member side of the attachment receiving portion. The cover body includes a cover bent portion bent along the longitudinal direction,
The attachment member is made of a plastically deformable metal and includes a cover support portion arranged to be bent along the cover bending portion,
The airbag device according to claim 1, further comprising a deformation restriction portion that faces the cover bending portion and restricts deformation. The airbag device according to claim 1, wherein the connecting portion is formed of a plate material that is integrally continuous with at least a part of each of the attachment portion and the support portion. The airbag device according to any one of claims 1 to 3, wherein an attachment mounting portion is provided on the mounting receiving portion of the bracket. The cover body is an interior material of the vehicle, the fixing portion of the bracket is positioned on the side portion of the vehicle compartment and fixed to the vehicle body, and the airbag is deployed along the side portion of the vehicle compartment. The airbag device according to any one of claims 1 to 4, characterized in that:

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