JP2009067183A - Arrangement structure of head protective airbag device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance the deployment property of a head protective airbag body into a cabin. <P>SOLUTION: A head protective airbag body 12 to be deployed in a curtain shape in a cabin 10 when receiving gas for inflation is arranged in a folded manner along a roof side rail 14, and constitutes a part of a design aspect in the cabin. Thus, in a side impact of the vehicle or the like, the head protective airbag body 12 can be directly inflated and deployed in the cabin 10. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an arrangement structure of a head protection airbag device.

The head protection airbag bag body (head airbag) is covered with a cover (closing element) separate from the roof head lining (roof panel lining), and the cover is provided with a hinge (weak notch). A structure is disclosed (see Patent Document 1).
JP 2003-2129 A

  However, in the above-described conventional example, in order to deploy the head protection airbag bag body in the vehicle interior, it was necessary to push the cover open to the vehicle interior side by the inflation pressure of the head protection airbag bag body.

  In view of the above-described facts, an object of the present invention is to further enhance the deployability of the head protection airbag bag body into the vehicle interior.

  According to the first aspect of the present invention, a head protection airbag bag body configured so as to be deployed in a curtain shape in a vehicle interior when supplied with an inflation gas is provided in a folded state along a roof side rail. And being arranged so as to constitute a part of the design surface of the vehicle interior.

  In the arrangement structure of the head protection airbag device according to claim 1, the head protection airbag bag body is arranged in a folded state along the roof side rail, and a part of the design surface of the vehicle interior is provided. Since it is arranged so as to constitute, the head protection airbag bag body can be directly inflated and deployed in the vehicle compartment at the time of a side collision of the vehicle. For this reason, the expandability to the vehicle interior of the head protection airbag bag body can be further enhanced.

  According to a second aspect of the present invention, in the arrangement structure of the head protection airbag device according to the first aspect, the head protection airbag bag body is arranged along an opening provided in a roof head lining. It is characterized by having.

  In the arrangement structure of the head protection airbag device according to claim 2, since the head protection airbag bag body is arranged along the opening provided in the roof head lining, the side collision of the vehicle At times, the head protection airbag bag body can be directly inflated and deployed from the opening into the vehicle compartment. For this reason, the deployability of the head protection airbag bag body in the vehicle compartment can be further enhanced with a simple configuration.

  According to a third aspect of the present invention, in the arrangement structure of the head protecting airbag device according to the second aspect, the head protecting airbag bag body is disposed so as to cover the opening. It is said.

  In the arrangement structure of the head protection airbag device according to claim 3, the head protection airbag bag body is arranged so as to cover the opening of the roof head lining. The opening of the head protection airbag body and the roof head lining is not noticeable. For this reason, a head protection airbag bag body can be made into a part of the interior design surface without a sense of incongruity.

  According to a fourth aspect of the present invention, in the arrangement structure of the head protection airbag device according to the first aspect, the head protection airbag bag body can be cleaved by the inflation pressure of the head protection airbag bag body. It is characterized by being disposed along an opening provided in the roof head lining in a state covered with an interior skin.

  In the arrangement structure of the head protection airbag device according to claim 4, the head protection airbag bag body is covered with an interior skin that can be cleaved by the inflation pressure of the head protection airbag bag body. In the state, it is disposed along the opening provided in the roof head lining, so that the head skin is cleaved by the inflation pressure of the head protection airbag bag body at the time of a side collision of the vehicle, etc. The protective airbag bag body can be directly inflated and deployed from the opening of the roof head lining into the vehicle interior.

  Since the interior skin covering the head protection airbag bag forms part of the interior design, the design is improved compared to the case where the head protection airbag bag is part of the interior design. Can do.

  According to a fifth aspect of the present invention, in the arrangement structure of the head protecting airbag device according to the fourth aspect, the skin is disposed so as to cover the opening.

  In the arrangement structure of the head protection airbag device according to claim 5, since the interior skin covering the head protection airbag bag body is arranged to cover the opening of the roof head lining, The surface of the car interior design and the opening of the roof head lining are inconspicuous. For this reason, the skin covering the head protection airbag bag can be made part of the vehicle interior design surface without further discomfort.

  According to a sixth aspect of the present invention, in the arrangement structure of the head protection airbag device according to the fourth aspect, a gap is formed between the head protection airbag bag body and a peripheral portion of the opening. A light source is disposed on the roof side rail side of the gap.

  In the arrangement structure of the head protection airbag device according to claim 6, the head protection airbag bag body is arranged such that a gap is formed between the periphery of the opening and the roof of the gap. Since the light source is disposed on the side rail side, the skin of the head protection airbag bag body can be illuminated by the light from the light source in the gap. For this reason, the designability in a vehicle interior can further be improved.

  According to a seventh aspect of the present invention, in the arrangement structure of the head protecting airbag device according to the sixth aspect, the epidermis is disposed so as to cover the gap, and from the light source in a region corresponding to the gap. It is characterized by being configured to be able to transmit light.

  In the arrangement structure of the head protection airbag device according to claim 7, the skin covering the head protection airbag bag is between the peripheral edge of the opening in the roof head lining and the head protection airbag bag. Since the light from the light source can be transmitted in a region corresponding to the gap, the letters on the epidermis can be raised in the vehicle interior by the light from the light source. it can. For this reason, the designability in a vehicle interior can be improved further.

  As described above, according to the arrangement structure of the head protection airbag device according to claim 1 of the present invention, the deployability of the head protection airbag bag body into the vehicle interior can be further enhanced. The excellent effect of being able to be obtained is obtained.

  According to the arrangement structure of the head protection airbag device according to claim 2, the deployability of the head protection airbag bag body in the vehicle compartment can be further improved with a simple configuration. An effect is obtained.

  According to the arrangement structure of the head protection airbag device according to claim 3, an excellent effect is obtained that the head protection airbag bag body can be part of the design surface of the vehicle interior without a sense of incongruity. .

  According to the arrangement structure of the head protection airbag device according to claim 4, it is possible to improve the design than when the head protection airbag bag body is used as a part of the vehicle interior design. Excellent effect is obtained.

  According to the arrangement structure of the head protection airbag device according to claim 5, there is an excellent effect that the head protection airbag bag body can be made a part of the design surface of the vehicle interior without further discomfort. can get.

  According to the arrangement structure of the head protection airbag device according to the sixth aspect, an excellent effect that the design of the vehicle interior can be further improved is obtained.

  According to the arrangement structure of the head protection airbag device according to the seventh aspect, it is possible to obtain an excellent effect that the design of the vehicle interior can be further improved.

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

[First Embodiment]
In FIG. 1, the head protection airbag device disposition structure S <b> 1 according to the present embodiment has a head that is configured to be deployed in a curtain shape into a passenger compartment 10 when supplied with an inflation gas. The protective airbag body 12 is disposed in a folded state along the roof side rail 14 and is disposed so as to constitute a part of the design surface of the vehicle interior.

  As shown in FIG. 1, the head protection airbag bag body 12 is disposed in a folded state along the roof side rail 14 between, for example, the A pillar 20, the B pillar 22, and the C pillar 24. For example, in the position adjacent to the head protection airbag bag body 12 above the B pillar 22, the gas for inflation is supplied to the head protection airbag bag body 12 by a side collision or rollover of the vehicle. An inflator 16 is provided. The inflator 16 is provided, for example, at a substantially central portion in the vehicle front-rear direction of the head protection airbag bag body 12 and is connected to, for example, a fin-like connection portion 18 communicating with the head protection airbag bag body 12.

  The inflator 16 is configured to operate in response to an operating current from an airbag ECU (not shown) and supply inflation gas to the head protecting airbag bag body 12. The airbag ECU is configured to flow an operating current to the inflator 16 when a side collision or rollover of the vehicle is determined based on signals from a side collision sensor and a rollover sensor (not shown). The position where the inflator 16 is connected to the head protection airbag bag body 12 is not limited to the substantially central portion of the head protection airbag bag body 12 in the vehicle front-rear direction. For example, the head protection airbag bag body Twelve front end portions and rear end portions may be used.

  Here, the roof side rail 14 is a vehicle skeleton member formed by joining the inner panel 26 and the outer panel 28 and extending in the vehicle front-rear direction on both sides in the vehicle width direction at the top of the vehicle body. Specifically, in the non-pillar portion, the roof side rail 14 has a closed cross-sectional structure in which the inner panel 26 and the outer panel 28 are joined at a joint portion 30 on the inner side in the vehicle width direction and a joint portion 32 on the outer side in the vehicle width direction. It is configured. A reinforcement 34 is sandwiched between the inner panel 26 and the outer panel 28 and joined together at joints 30 and 32.

  At the upper edge of the head protection airbag bag body 12, attachment pieces 36 are formed at arbitrary intervals. These mounting pieces 36 are fastened and fixed to the inner panel 26 of the roof side rail 14 with, for example, bolts and nuts (not shown). The head protection airbag bag 12 is thus fixed to the body side.

  Further, the head protection airbag body 12 is disposed along the opening 38A provided in the roof head lining 38 and covers the opening 38A, for example, with respect to the peripheral portion 38B of the opening 38A. It is arranged in close contact.

  Here, in FIG. 2, the roof head lining 38 is a ceiling material of the passenger compartment 10 and is configured by adhering a skin 42 to a base material 40 made of, for example, a synthetic resin panel. A lower edge portion 38C of the roof head lining 38 on the side of the vehicle body extends to the vicinity of the joint portion 32 on the outer side in the vehicle width direction of the roof side rail 14, and is locked by a trim 44 fitted into the joint portion 32. .

  Of the trim 44, a weather strip 48 is provided on the outer side in the vehicle width direction of the joint portion 32 to enhance water tightness and air tightness between the roof side rail 14 and the door sash 46 when the side door is closed. ing. A weather strip 50 is further provided outside the weather strip 48 in the vehicle width direction. The weather strip 50 is fitted and fixed to a rail portion 46A provided along the upper edge of the door sash 46. A weather strip 54 is also provided on the lower edge of the door sash 46 to enhance water tightness and air tightness when the side glass 52 is closed.

  A peripheral edge 38B of the opening 38A of the roof head lining 38 is bent toward the roof side rail 14 side. This peripheral portion 38B is brought into close contact with the compartment side portion 12A of the head protection airbag bag body 12 when the roof head lining 38 is assembled. The vehicle interior side portion 12A of the head protection airbag bag body 12 is composed of a portion from an end portion 12B which becomes a lower edge portion when deployed to a first folded portion 12C.

  The head protection airbag bag body 12 is folded, for example, by bellows folding, and is held in a folded state by being bound by a thread 56, for example. For example, both ends of the thread 56 are sewn to the end portion 12B and the first folded portion 12C, and are wound around the roof side rail 14 side so that they are not exposed to the vehicle compartment 10 side. The thread 56 is configured to be broken by the inflation pressure of the head protection airbag bag body 12. The means for holding the head protection airbag bag body 12 in a folded state is not limited to the thread 56, and for example, an adhesive may be used. In this case, the adhesive strength of the adhesive is set to such an extent that it peels when the head protection airbag bag body 12 is inflated.

  In the passenger compartment side portion 12A of the head protection airbag bag body 12, the end portion 12B is disposed at a position that wraps around the vehicle lower side of the second turn-up portion 12D, and the first turn-up portion 12C is formed on the third surface. It arrange | positions in the position which wraps around the vehicle upper side of the folding | turning part 12E. This is to prevent the folded portion of the head protection airbag bag body 12 from being exposed to the vehicle compartment 10 side. Thereby, the compartment side part 12A of the head protection airbag bag body 12 is held in, for example, an arcuate shape (a U-shaped cross section).

  The vicinity of the end portion 12B and the first turn-up portion 12C in the passenger compartment side portion 12A are arranged in close contact with the peripheral portion 38B of the opening 38A of the roof head lining 38, respectively. Further, the central portion of the passenger compartment side portion 12A is in a state of entering the opening portion 38A so that a step with respect to the general surface 38D of the roof head lining 38 becomes small. It is desirable that the central portion of the passenger compartment side portion 12A be substantially flush with the general surface 38D of the roof head lining 38.

(Function)
This embodiment is configured as described above, and the operation thereof will be described below. In FIG. 1, in the arrangement structure S1 of the head protection airbag device according to the present embodiment, the airbag ECU detects the occurrence of a side collision or rollover of a vehicle based on signals from a side collision sensor or a rollover sensor. When it is determined, an ignition current is supplied to the inflator 16. The inflator 16 is operated by the ignition current and generates a large amount of gas. By supplying this gas to the head protection airbag bag body 12, the head protection airbag bag body 12 is inflated and deployed so as to form a curtain between a passenger (not shown) and the vehicle body side. go.

  At this time, in the present embodiment, the head protection airbag bag body 12 is disposed in a folded state along the roof side rail 14 and is disposed so as to constitute a part of the design surface of the vehicle interior. Therefore, the head protection airbag bag body 12 can be inflated and deployed directly into the passenger compartment 10 at the time of a side collision of the vehicle. For this reason, the developability of the head protection airbag bag body 12 into the vehicle compartment 10 can be further enhanced.

  Specifically, as shown in FIG. 2, the head protection airbag bag body 12 is disposed so as to cover the opening 38A along the opening 38A provided in the roof head lining 38, and Since the vicinity of the end portion 12B and the first turn-up portion 12C in the passenger compartment side portion 12A of the head protection airbag bag body 12 are arranged in close contact with the peripheral portion 38B of the opening portion 38A, the vehicle When the side collision occurs, the head protection airbag bag body 12 can be directly inflated and deployed into the vehicle compartment 10 through the opening 38A. In the present embodiment, with such a simple configuration, the deployability of the head protection airbag bag body 12 into the vehicle compartment 10 can be further enhanced.

  Further, in the arrangement structure S1 of the head protection airbag device, as described above, the head protection airbag bag body 12 is arranged so as to cover the opening 38A of the roof head lining 38, and the head protection airbag is provided. Since the central portion of the compartment side portion 12A of the bag bag body 12 is in a state of entering the opening 38A of the roof head lining 38, there is a step between the central portion and the general surface 38D of the roof head lining 38. small. Since the head protection airbag bag 12 as the vehicle interior design surface and the opening 38A of the roof head lining 38 are inconspicuous, the head protection airbag bag 12 can be part of the vehicle interior design surface without a sense of incongruity. it can.

[Second Embodiment]
In FIG. 3, in the head protection airbag device disposition structure S <b> 2 according to the present embodiment, the interior of the head protection airbag bag body 12 can be cleaved by the inflation pressure of the head protection airbag bag body 12. It is disposed along the opening 38 </ b> A provided in the roof head lining 38 in a state covered with the outer skin 60. Specifically, for example, the skin 60 is disposed in close contact with the peripheral portion 38B of the opening 38A so as to cover the opening 38A.

  As the skin 60, the same type as the skin 42 of the roof head lining 38, the door trim skin (not shown), or the like is used. From the viewpoint of enhancing the design, any character, pattern, embroidery, gold foil, or the like may be attached to the skin 60. The skin 60 is sewn using control sewing, that is, a so-called tear seam 62 that is broken by the inflation pressure of the head protection airbag bag body 12 in a state of covering the head protection airbag bag body 12. From the viewpoint of design in the passenger compartment 10, the stitching position by the tear seam 62 is set between the roof head lining 38 and the roof side rail 14.

  When the head protection airbag bag body 12 is covered with the skin 60, the passenger compartment side portion 12A enters the opening portion 38A so that the step with respect to the general surface 38D of the roof head lining 38 is reduced. It has become. In the present embodiment, the head protection airbag bag body 12 is covered by the skin 60, and the folded portion is not exposed to the vehicle compartment 10 side. Therefore, unlike the first embodiment, the folding width is constant, for example. Has been.

  Since other parts are the same as those in the first embodiment, the same parts are denoted by the same reference numerals in the drawings, and the description thereof is omitted.

(Function)
This embodiment is configured as described above, and the operation thereof will be described below. 3, in the arrangement structure S2 of the head protection airbag device according to the present embodiment, when a vehicle side collision or rollover occurs, the inflator 16 (see FIG. 1) is provided in the same manner as in the first embodiment. The gas for inflation is supplied to the head protection airbag bag body 12 by operating.

  Here, in this embodiment, the head protection airbag bag body 12 is covered with an interior skin 60 that can be cleaved by the inflation pressure of the head protection airbag bag body 12. The outer skin 60 is sewn together using a tear seam 62, and the tear seam 62 is broken when the inflation pressure of the head protection airbag body 12 acts. As a result, as shown in FIG. 4, the epidermis 60 is cleaved, and the head protection airbag bag body 12 starts to inflate into the passenger compartment 10.

  In the present embodiment, the skin 60 that covers the head protection airbag bag 12 is disposed along the opening 38 </ b> A provided in the roof head lining 38, and the peripheral portion of the opening 38 </ b> A of the roof head lining 38. 38B, and the vehicle interior side portion 12A of the head protection airbag bag body 12 is in a state of entering the opening 38A. 12 can be directly inflated and deployed into the passenger compartment 10 through the opening 38A of the roof head lining 38. The head protection airbag bag body 12 is inflated and deployed so as to form a curtain between an unillustrated occupant and a vehicle body side portion.

  In addition, in this embodiment, since the interior skin 60 that covers the head protection airbag bag body 12 forms a part of the vehicle interior design, the head protection airbag bag body 12 is used as it is in the vehicle interior design. The design property can be improved as compared with the first embodiment. In particular, since the skin 60 is disposed so as to cover the opening 38A of the roof head lining 38, the skin 60 as the vehicle interior design surface and the opening 38A of the roof head lining 38 are hardly noticeable. For this reason, the head protection airbag bag body 12 can be made a part of the design surface of the vehicle interior without further discomfort.

  By attaching arbitrary characters, patterns, embroidery, gold foil, etc. to the skin 60, the interior design can be changed in accordance with the atmosphere in the interior 10 of the interior.

  Thus, in the arrangement structure S2 of the head protection airbag device, the designability in the passenger compartment 10 is improved, and the deployability of the head protection airbag bag body 12 in the passenger compartment 10 is further improved. Can do.

[Third Embodiment]
In FIG. 5, in the arrangement structure S3 of the head protection airbag device according to the present embodiment, the roof head lining 38 is covered with the head protection airbag bag body 12 covered with the interior skin 60. A gap 64 is formed between the opening 38A and the peripheral edge 38B. This gap 64 is continuous or intermittent along the longitudinal direction of the roof side rail 14 between the peripheral portion 38B on the vehicle upper side of the opening 38A and the skin 60 covering the head protection airbag bag body 12, for example. Is provided.

  A light source 66 is disposed on the roof side rail 14 side of the gap 64. The light source 66 is, for example, a light bulb or a light emitting diode. A mounting bracket 68 to which the light source 66 is fixed is fixed to the inner panel 26 of the roof side rail 14. The mounting bracket 68 extends from the inner panel 26 to the back surface (base material 40) of the roof head lining 38, supports the roof head lining 38, and regulates the deployment direction of the head protection airbag bag body 12. Thus, the head protection airbag bag body 12 can be stably deployed in the passenger compartment 10.

  In addition, the location which provides the gap | interval 64 and the light source 66 about the roof side rail 14 of one side may be one place or multiple places.

  Since other parts are the same as those in the second embodiment or the first embodiment, the same parts are denoted by the same reference numerals and the description thereof is omitted.

(Function)
This embodiment is configured as described above, and the operation thereof will be described below. 5, in the arrangement structure S3 of the head protection airbag device according to the present embodiment, the peripheral portion of the opening 38A in a state where the head protection airbag bag body 12 is covered with the inner skin 60. 38B, and a light source 66 is provided on the roof side rail 14 side of the gap 64. Therefore, the head protection airbag is used by the light from the light source 66. The skin 60 of the bag 12 can be illuminated. It is also possible to attach arbitrary characters, patterns, embroidery, gold foil, etc. to the skin 60 and make them shine with the light from the light source 66. Further, the arrangement of the light source 66 makes it possible to obtain direct light in the direction of arrow D and indirect light in the direction of arrow R. Direct illumination can be obtained by increasing the proportion of direct light, and indirect illumination can be obtained by setting the proportion of indirect light to be increased.

  As described above, in the head protection airbag device arrangement structure S3, since the head protection airbag bag body 12 serving as an accent portion on the interior design surface is illuminated, the interior of the passenger compartment 10 The design property of the can be further improved.

  The deployment of the head protection airbag bag 12 at the time of a side collision or rollover of the vehicle is the same as in the second embodiment.

[Fourth Embodiment]
In FIG. 6, in the arrangement structure S <b> 4 of the head protection airbag device according to the present embodiment, the skin 60 covering the head protection airbag bag body 12 is formed with the peripheral portion 38 </ b> B of the opening 38 </ b> A in the roof head lining 38. The head protection airbag bag body 12 is disposed so as to cover the gap 64, and is configured to transmit light from the light source 66 in a region 70 corresponding to the gap 64.

  A gap 64 is provided between the head protection airbag body 12 and the peripheral portion 38B on the vehicle upper side of the opening 38A in the roof head lining 38. The upper portion of the skin 60 extends across the gap 64 to the back side of the peripheral portion 38B on the upper side of the vehicle. A region 70 straddling the gap 64 is configured to transmit light from the light source 66. Arbitrary characters, patterns, and the like can be attached to the area 70.

  The stitching portion 72 on the vehicle upper side of the skin 60 is sewn so as not to be cleaved even when the inflation pressure of the head protection airbag bag body 12 acts, for example.

  Since other parts are the same as those in the third embodiment or the first embodiment, the same parts are denoted by the same reference numerals and the description thereof is omitted.

(Function)
This embodiment is configured as described above, and the operation thereof will be described below. In FIG. 6, in the arrangement structure S <b> 4 of the head protection airbag device according to the present embodiment, the skin 60 covering the head protection airbag bag body 12 is connected to the peripheral portion 38 </ b> B of the opening 38 </ b> A in the roof head lining 38. Since the light from the light source 66 can be transmitted in a region 70 corresponding to the gap 64, the skin is covered by the light. The characters on the surface 60 can be raised in the passenger compartment 10. For this reason, the designability in the vehicle interior 10 can be further improved.

  In the present embodiment, it is desirable that the arrangement of the light source 66 is set so that direct light in the direction of the arrow D can be obtained in order to efficiently raise characters on the skin 60 and the like in the passenger compartment 10.

  The deployment of the head protection airbag bag 12 at the time of a side collision or rollover of the vehicle is the same as in the second embodiment.

[Fifth Embodiment]
In FIG. 7, in the head protection airbag device arrangement structure S <b> 5 according to the present embodiment, the folded head protection airbag bag body 12 is deployed by the inflation pressure of the head protection airbag bag body 12. The air bag cover 74 is covered, and the air bag cover 74 is provided with, for example, a lens portion 76 that transmits light from the light source 66. The lens unit 76 is made of, for example, a transparent synthetic resin.

  Specifically, the airbag cover 74 is rotatably supported by the mounting bracket 68 at, for example, the upper end portion 74A, and is locked by the trim 44 at the lower edge portion 74B, so that the head protection airbag bag body 12 is inflated. When pressure is applied, the lower edge portion 74B is detached from the trim 44 and is developed toward the vehicle compartment 10 with the upper end portion 74A as a center (see FIG. 8).

  The airbag cover 74 is formed with a recessed portion 74C that is recessed outward in the vehicle width direction, and the lower edge portion 38C of the roof head lining 38 faces the roof side rail 14 so as to enter the recessed portion 74C. It is bent and formed.

  The mounting bracket 68 is formed with a lower wall portion 68 </ b> A that extends to the back surface of the airbag cover 74 along the vehicle upper side of the head protection airbag bag body 12. The lower wall portion 68 </ b> A is provided to regulate the deployment direction of the head protection airbag bag body 12 and stably deploy the head protection airbag bag body 12 into the vehicle interior 10. The lower wall portion 64A is also used to reflect light from the light source 66 and guide it to the lens portion 76.

  The lens portion 76 is disposed between the inner end portion 68B in the vehicle width direction of the lower wall portion 68A of the mounting bracket 68 and the recessed portion 74C in the airbag cover 74. The lens unit 76 may be provided with an arbitrary character, pattern, or the like, or an arbitrary character, pattern, or the like may be configured by the shape or arrangement of the lens unit 76.

  Since other parts are the same as those in the third embodiment or the first embodiment, the same parts are denoted by the same reference numerals and the description thereof is omitted.

(Function)
This embodiment is configured as described above, and the operation thereof will be described below. 8, in the arrangement structure S5 of the head protection airbag device according to this embodiment, when a vehicle side collision or rollover occurs, the inflator 16 (see FIG. 1) is provided in the same manner as in the first embodiment. The gas for inflation is supplied to the head protection airbag bag body 12 by operating. As a result, the head protection airbag bag body 12 starts to inflate, but since the lower wall portion 68A of the mounting bracket 68 is disposed on the vehicle upper side of the head protection airbag bag body 12, The inflation pressure of the protective airbag bag body 12 efficiently acts on the lower portion of the airbag cover 74. Due to the inflation pressure, the lower edge portion 74B of the airbag cover 74 is detached from the trim 44, and the airbag cover 74 is deployed toward the vehicle compartment 10 centering on the upper end portion 74A. As a result, an opening 78 is formed between the airbag cover 74 and the trim 44.

  Since the peripheral edge 38B of the roof head lining 38 enters the recess 74C of the airbag cover 74, it is deformed to the vehicle compartment 10 side by a load input from the recess 74C when the airbag cover 74 is deployed. Thereby, since the airbag cover 74 can be expanded more largely, the opening part 78 also becomes larger. The head protection airbag 12 is inflated from the opening 78 into the vehicle compartment 10 while the direction of deployment is restricted by the lower wall portion 68A of the mounting bracket 68, and the occupant and the vehicle body side not shown are inflated. It expands in the form of a curtain.

  On the other hand, in normal times, as shown in FIG. 7, the airbag cover 74 is provided with a lens portion 76 that transmits light from the light source 66. It is possible to float inside. In the illustrated example, light from the light source 66 is reflected by the lower wall portion 68 </ b> A of the mounting bracket 68 and passes through the lens portion 76 as indirect light in the arrow R direction. The light from the light source 66 is not limited to indirect light, and may be direct light.

1 and 2 relate to the first embodiment, and FIG. 1 is a perspective view showing an arrangement structure of a head protection airbag device as viewed from the passenger compartment side. FIG. 2 is an enlarged cross-sectional view taken along arrow 2-2 in FIG. 3 and 4 relate to the second embodiment, and FIG. 3 is an enlarged cross-sectional view showing the arrangement structure of the head protecting airbag device. It is an expanded sectional view which shows the state which a head protection airbag bag body expand | deploys. It is an expanded sectional view showing the arrangement structure of the head protection airbag device concerning a 3rd embodiment. It is an expanded sectional view showing the arrangement structure of the head protection airbag device concerning a 4th embodiment. 7 and 8 relate to the fifth embodiment, and FIG. 7 is an enlarged cross-sectional view showing the arrangement structure of the head protecting airbag device. It is an expanded sectional view showing the state where an airbag cover expands by the inflation pressure of the head protection airbag bag body, and the head protection airbag bag body expands from the opening to the vehicle interior.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Car compartment 12 Head protection airbag bag body 38 Roof head lining 38A Opening part 38B Peripheral part 60 Epidermis 64 Gap 66 Light source 70 Area | region S1 Installation structure of head protection airbag apparatus S2 Installation of head protection airbag apparatus Structure S3 Arrangement structure of head protection airbag device S4 Arrangement structure of head protection airbag device S5 Arrangement structure of head protection airbag device

Claims (7)

  A head protection airbag bag body that is configured to be deployed in a curtain shape into the vehicle interior when supplied with the inflation gas is disposed in a folded state along the roof side rail, and the vehicle interior design An arrangement structure of a head protection airbag device, wherein the arrangement structure is configured to constitute a part of a surface.   2. The head protection airbag device arrangement structure according to claim 1, wherein the head protection airbag bag body is arranged along an opening provided in a roof head lining.   The arrangement structure of the head protection airbag device according to claim 2, wherein the head protection airbag bag body is arranged so as to cover the opening.   The head protection airbag bag body is disposed along an opening provided in the roof head lining in a state covered with an interior skin that can be cleaved by the inflation pressure of the head protection airbag bag body. The arrangement structure of the head protection airbag device according to claim 1, wherein the head protection airbag device is arranged.   The arrangement structure of the head protection airbag device according to claim 4, wherein the skin is arranged so as to cover the opening. The head protection airbag bag body is disposed such that a gap is formed between the opening portion and the peripheral edge portion of the opening,
The head protection airbag device arrangement structure according to claim 4, wherein a light source is arranged on the roof side rail side of the gap.   The head protection air according to claim 6, wherein the skin is disposed so as to cover the gap, and is configured to transmit light from the light source in a region corresponding to the gap. Arrangement structure of bag device.

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