JP4187019B2 - Interior structure of a vehicle equipped with a head protection airbag device - Google Patents

Description

  The present invention relates to an interior structure of a vehicle equipped with a head protection airbag device including an airbag that is retracted and arranged along a roof side rail and that is expanded and deployed along a side wall surface of a passenger compartment by operation of an inflator. Is.

Conventionally, as shown in, for example, Patent Document 1 below, in a sun visor mounting structure for a vehicle equipped with a head protection airbag device stored across a pillar and a roof side rail, the load when the airbag is expanded and deployed is When acting on the visor, the sun visor arm is moved to the vehicle interior side by, for example, opening deformation of the expandable ring fitted in the V groove of the sun visor arm, so that when the airbag is expanded and deployed In order to prevent deformation of the sun visor and detachment from the sun visor arm.
JP 2000-247204 A

  As described above, when the airbag is expanded and expanded, the expandable ring that fits into the V groove of the sun visor arm is deformed by opening and the sun visor arm is moved to the vehicle interior side to expand and expand the airbag. In the case where the area is secured, it is necessary to deform the ring with an extremely light force so as to prevent the expansion of the airbag from being hindered by the sun visor. Therefore, when the sun visor is swung and displaced from the storage position of the front part of the vehicle body to the side use position, if a predetermined load is applied to the sun visor arm, the ring easily deforms and the sun visor is easily deformed. There is a problem that the oscillating operation of the visor is not hindered.

  In addition, when the airbag is expanded and deployed, if the airbag interferes with the sun visor and the sun visor is pushed toward the passenger compartment, there is a problem such as the sun visor coming into contact with the head of the passenger. In the prior art described in the publication, the movement of the sun visor to the vehicle interior side is limited to a predetermined stroke by a stopper provided at the tip of the sun visor arm. There has been a problem that the sun visor hinders the airbag from being expanded and deployed.

  The present invention has been made in view of the above points, and effectively prevents a sun visor from obstructing the expansion and deployment of an airbag during a side collision of a vehicle with a simple configuration. It aims at providing the interior structure of the vehicle carrying the head protection airbag device which can do.

  According to the first aspect of the present invention, there is provided an airbag that is stored and arranged along a roof side rail, and that is expanded and deployed along a side wall surface of a passenger compartment by an operation of an inflator at the time of a side collision of the vehicle. A roof that covers the wall surface of the airbag and the roof side rail on the passenger compartment side, is pressed by the airbag when the airbag is deployed, and swings and displaces toward the passenger compartment to form a gap between the roof side rail and the roof. A trim, a sun visor, and a rotation support unit that pivotally supports the sun visor about a vertical axis and allows the sun visor to swing from a front support position to a side use position. In this vehicle, an assist grip is provided at a position above the airbag installation portion on the side wall surface of the interior of the roof side rail, and the assist grip is swung to the side use position. By abutting and Nbaiza, which is constituted so as to secure the vehicle width direction of the gap between the upper end portion and the roof trim visor.

  According to a second aspect of the present invention, in the interior structure of a vehicle on which the head protection airbag device according to the first aspect is mounted, the side portion of the roof trim is a weather whose edge is provided on the roof side rail. The assist grip is installed so as to extend from the upper side of the side portion of the roof trim to the vehicle interior while being detachably locked to the strip.

  According to a third aspect of the present invention, in the interior structure of a vehicle on which the head protection airbag device according to the first or second aspect is mounted, the assist grip is directed obliquely downward from the vehicle interior side wall surface of the roof side rail. It is extended.

  According to a fourth aspect of the present invention, in the vehicle interior structure on which the head protection airbag device according to any one of the first to third aspects is mounted, the sun visor enters the swing displacement region of the roof trim. Is configured to be regulated by an assist grip.

  According to the first aspect of the present invention, when the sun visor is rocked and displaced from the front support position to the side use position, the sun visor is brought into contact with the existing assist grip, and the sun visor and the roof trim are arranged. When the roof trim is oscillated and displaced according to the deployment pressure of the airbag in the event of a side collision of the vehicle, the fluctuation displacement is obstructed by the sun visor. Is effectively prevented, and the deployability of the airbag can be ensured.

  According to the second aspect of the present invention, since the gap is not formed between the roof side trim and the roof side rail in a normal state, the appearance is good, and the airbag deployment pressure is applied at the time of a side collision of the vehicle. Accordingly, when the roof trim is pressed toward the vehicle interior side, the engagement / disengagement state of the side portion of the roof trim by the weather strip provided on the roof side rail is released, and the upper end portion of the sun visor and the roof trim are released. Are separated in the vehicle width direction by the extension of the assist grip in the vehicle interior direction, and the side portion of the roof trim is allowed to swing and displace to the airbag deployment allowable position. become.

  According to the third aspect of the present invention, the swing displacement of the sun visor is effectively regulated below the position where the assist grip is attached, while the assist grip is disposed in the vicinity of the assist grip without interfering with the airbag. Thus, there is an advantage that it is possible to effectively prevent the fluctuation displacement of the roof trim at the time of a side collision of the vehicle from being disturbed by the sun visor.

  According to the invention of claim 4, by restricting the sun visor from entering the rocking displacement region of the roof trim by the assist grip, the fluctuation displacement of the roof trim at the time of a side collision of the vehicle is caused by the sun visor. There is an advantage that it can be effectively prevented from being disturbed.

  1 to 3 show a reference example of an interior structure of a vehicle equipped with a head protection airbag device according to the present invention. The vehicle includes an inflator 1 that operates according to a detection signal of a collision detection sensor (not shown) that detects a side collision and the like, and a bellows along the roof side rail 3 and the rear pillar 4 from the upper end of the front pillar 2 of the vehicle. An airbag 5 that is stored in a folded state, a gas supply pipe 6 that expands and deploys the airbag by supplying gas generated when the inflator 1 is operated to the airbag 5, and the front pillar. 2, a front pillar trim 7, a roof trim 8, a rear pillar trim 9, and a sun visor 10 that cover the wall surfaces of the roof side rail 3 and the rear pillar 4 on the vehicle interior side.

  The airbag 5 is stored and disposed so as to extend from the upper end portion of the front pillar 2 to the rear side of the vehicle body along the side wall surface of the roof side rail 3. The roof trim 8 is covered by the side part 8a. The side edge 8a of the roof trim 8 is engaged with the weather strip 11 attached to the flange 3a of the roof side rail 3 so that the end edge (outer edge) is detachable (see FIG. (See FIG. 2). In FIG. 2, reference numeral 12 denotes a front door.

  The rear portion 5a of the airbag 5 is housed and disposed so as to extend to the lower side of the vehicle body along the rear side portion of the rear pillar 4, and the inflator 1 is disposed on the lower side thereof. The rear end portion of the airbag 5 is fixed to the vehicle interior side wall surface of the rear pillar 4, that is, the inner panel 4a of the rear pillar 4 together with the gas supply pipe 6 by a fixing bolt 13 or the like (see FIG. 3). In FIG. 3, reference numeral 14 denotes a rear side door.

  Further, a substantially parallelogram-shaped extending portion 8b covering the rear portion 5a of the airbag 5 housed and disposed so as to extend to the lower side of the vehicle body along the rear side portion of the rear pillar 4 is a rear end of the roof trim 8. (See FIG. 1). The extension 8b of the roof trim 8 has an upper and lower dimension set to approximately half of the rear pillar 4 and a width dimension set to approximately half of the rear pillar 4 so that the upper rear side of the rear pillar 4 is It is configured to cover.

  A substantially L-shaped notch corresponding to the extension 8b of the roof trim 8 is formed on the upper portion of the rear pillar trim 9, and a portion excluding the rear side of the rear pillar 4, that is, the front side of the rear pillar 4 is formed. The portion is covered with an upper portion 9 a of the rear pillar trim 9. Further, as shown in FIG. 3, a flange portion 8c inclined obliquely outward is formed at the front edge of the extended portion 8b of the roof trim 8. Normally, the rear pillar trim is formed on the flange portion 8c. When the rear edge of the upper portion 9a of the 9 is in line contact, both members are superposed.

  When the airbag 5 is expanded and deployed, the vehicle interior side wall surface of the rear pillar 4 has a vehicle compartment from the overlapping portion of the front edge of the extended portion 8b of the roof trim 8 and the rear edge of the upper portion 9a of the rear pillar trim 9. The position of the guide member 15 that guides the airbag 5 so as to inflate inside corresponds to the overlapping portion of the front edge of the extended portion 8b of the roof trim 8 and the rear edge of the upper portion 9a of the rear pillar trim 9. It is fixed to.

  The extension of the roof trim 8 is between the lower edge of the extension 8b of the roof trim 8 and the lower edge of the notch formed in the rear pillar trim 9 corresponding to the extension 8b. An overlapping portion similar to the overlapping portion formed between the front edge of the portion 8b and the rear edge of the upper portion 9a of the rear pillar trim 9 is provided. A similar overlap portion is also provided between the upper edge of the upper portion 9a of the rear pillar trim 9 and the lower edge of the roof trim 8 corresponding thereto.

  As shown in FIGS. 2 and 4, the sun visor 10 is rotatably supported by a header panel 15 installed below the front end portion of the roof panel via a rotation support portion 16. The rotation support portion 16 is provided so as to protrude upward from the dish-shaped attachment portion 17 fixed to the header panel 15 by a fixture (not shown) such as a fixing bolt and the center portion of the attachment portion 17. And an outer peripheral flange portion of the mounting portion 17 is pressed against the lower surface of the roof trim 8 installed below the header panel 15 and the upper portion of the vertical pivot portion 18. Is fixed in a state of being inserted above the openings formed in the header panel 15 and the roof trim 8.

  The rotation support portion 16 is provided with a vertical shaft 19 rotatably supported by the vertical pivot support portion 18, and a horizontal pivot support portion 21 composed of a horizontal axis is connected to the lower end portion of the vertical shaft 19. The horizontal pivot portion 21 is inserted and held in a cylindrical holding portion 20 embedded in the sun visor 10. Then, by rotating the sun visor 10 around the horizontal pivot 21, the sun visor is moved from the retracted position along the lower surface of the roof trim 8 (see the solid line in FIG. 1 and FIG. 2) to the use position below. 10 is oscillated and displaced. Further, by rotating the sun visor 10 around the vertical pivot 18, the sun visor 10 is swung from the front position along the upper portion of the windshield to the side use position indicated by the phantom line in FIG. 2. It is configured to be displaced dynamically.

  The vertical shaft 19 is fixed with the pin 23 inserted therethrough. The vertical pivot 18 is provided with an elongated guide groove 24 into which the insertion end of the pin 23 is inserted, and the vertical displacement of the vertical shaft 19 is allowed in the installation range of the guide groove 24. It has become so. As shown in FIG. 5, when the sun visor 10 is swung and displaced from the front position to the side use position, the insertion end of the pin 23 is brought into contact with the side end of the guide groove 24. Thus, the rotational displacement of the vertical shaft 19 is restricted. As a result, when the airbag 5 described later is expanded and deployed, the sun visor 10 enters the swing displacement region of the side portion 8a of the roof trim 8 that is pressed by the airbag 5 and swings to the vehicle interior side. Is prevented. That is, the pin 23 inserted through and fixed to the vertical shaft 19 and the guide groove 24 formed in the vertical pivot 19 support the expansion and expansion region of the airbag 5 and the side 8a of the roof trim 8. An entry restricting means for restricting the sun visor 10 from entering the dynamic displacement area is configured.

  Further, as shown in FIG. 6, between the front pillar 2 and the front pillar trim 7 installed on the vehicle interior side, one end is locked to the front pillar 2 by a locking tool 25 described later. At the same time, a fixing member 26 made of a belt-like member fixed by means such as the other end being sewn to the front end of the airbag 5 is disposed. In FIG. 6, reference numeral 27 denotes a windshield. When the airbag 5 described below is expanded and deployed, as shown in FIG. 7, the fixing position of the front end portion of the airbag 5 fixed to the front pillar 2 by the fixing member 26 is set to the rear pillar 4 by the fixing bolt 13 or the like. The fixing position of one end portion of the fixing member 26, that is, the locking member 25 is locked to the front pillar 2 so that the fixing position of the rear end portion of the airbag 5 fixed to the airbag 5 is substantially the same height. The locking position of the fixing member 26 is set.

  In the above configuration, when it is detected by the collision detection sensor that a side collision or the like has occurred in the vehicle, the gas generated when the inflator 1 is in an operating state enters the airbag 5 through the gas supply pipe 6. Supplied. As a result, the airbag 5 housed and arranged along the roof side rail 3 bulges downward, and as shown in FIG. 7, it is expanded and deployed so as to cover the side wall surface of the passenger compartment in a curtain shape.

  That is, as shown in FIG. 8, when the airbag 5 is inflated downward, the side portion 8a of the roof trim 8 is pressed downward and swings and displaces toward the vehicle interior side. A predetermined gap is formed between the wall 3 on the vehicle interior side and the weather strip 11, and the airbag 5 is expanded and deployed from this gap. The sun visor 10 enters the expansion / deployment region of the airbag 5 by the entry restriction means including the pin 23 inserted and fixed to the horizontal shaft 22 and the guide groove 24 formed in the vertical pivot 19. Therefore, the expansion and deployment of the airbag 5 is smoothly inhibited without being inhibited by the sun visor 10.

  Further, when the rear portion 5 a of the airbag 5 disposed along the rear side portion of the rear pillar 4 is inflated, the rear portion 5 a of the airbag 5 is guided by the guide member 15 to the extended portion 8 b of the roof trim 8. It abuts and presses the extended portion 8b toward the inner side of the vehicle body. As a result, the overlap portion between the front edge of the extending portion 8b and the rear edge of the upper portion 9a of the rear pillar trim 9 is separated, and the rear portion 5a of the airbag 5 bulges outward from the separated portion. It will be.

  In the deployed state of the airbag 5, the front end portion is fixed to a substantially intermediate portion in the vertical direction of the front pillar 2 by the fixing member 26. In the illustrated example, the bulging portion of the airbag 5 includes a front seat front portion 5b covering a range including the installation portion of the center pillar 10 from the front pillar 2 and a range including the installation portion of the rear pillar 4. The airbag 5 is divided into a rear portion 5a for covering the rear seat, and the front portion 5b and the rear portion 5a of the airbag 5 are connected by a sheet-like connecting portion 5c. You may comprise so that the whole may bulge.

  The airbag 5 is stored and arranged along the roof side rail 3 as described above, and is expanded and deployed along the side wall surface of the passenger compartment by the operation of the inflator 1 at the time of a side collision of the vehicle, and the roof side rail 3 In a vehicle provided with a roof trim 8 that covers a wall surface on the vehicle interior side and a sun visor 10, a rotation support portion 16 that rotatably supports the sun visor 10 with respect to the vehicle body, and an expansion of the airbag 5. Since the entry restricting means for restricting the sun visor 10 from entering the deployment area is provided, the airbag 5 that is expanded and deployed at the time of a side collision of the vehicle is prevented from interfering with the sun visor 10, and the airbag 5 Can be expanded and expanded smoothly.

  Therefore, the expansion and deployment of the airbag 5 is hindered by the sun visor 10, making it difficult to quickly deploy the airbag 5, or the sun visor 10 is pressed against the inner side of the vehicle compartment by the airbag 5. The airbag 5 can be expanded and deployed quickly and properly without causing problems such as being in contact with the head of the passenger and effectively protecting the head of the passenger and the like. it can.

  In particular, as shown in the reference example, when the airbag 5 is expanded and deployed, the entry restricting means restricts the sun visor from entering the swing region of the side portion 8a of the roof trim 8. In such a case, it is ensured that the sun visor 10 inhibits the expansion and deployment of the airbag 5 and the swinging displacement of the side portion 8a of the roof trim 8 corresponding to the airbag 5 at the time of a side collision of the vehicle. Therefore, there is an advantage that the airbag 5 can be expanded and deployed more smoothly.

  In addition, the rotation support portion 16 of the sun visor 10 is provided with a vertical pivot portion 18 that rotatably supports the sun visor 10, and a vertical shaft 19 that is rotatably supported by the vertical pivot portion 18 is a sun visor 10. When the airbag 5 is expanded and deployed, the sun visor is placed in the swing displacement region of the side portion 8a of the roof trim 8 by restricting the range of rotation together with the entry restricting means comprising the pin 23 and the guide groove 24. Instead of the above-described embodiment configured to restrict the entry of the air bag 10, the sun visor 10 is placed in the swing displacement region of the side portion 8a of the roof trim 8 within a range where the expansion and deployment of the airbag 5 is not hindered. May be allowed to enter.

  Further, a rotational displacement of the sun visor 10 centering on a horizontal support portion 21 composed of a horizontal shaft connected to the vertical shaft 19 is fixed to predetermined entry restricting means, for example, a pin inserted and fixed to the horizontal pivot portion 21 and By restricting the movement of the sun visor 10 to the side use position by a long hole-shaped guide groove or the like formed in the cylindrical holding portion 20, the expansion / deployment region or roof of the airbag 5 is controlled. Even when the sun visor 10 is configured to be prevented from entering the swinging region of the side portion 8a of the trim 8, the same effect can be obtained.

  In particular, as shown in the above-mentioned reference example, a rotation shaft composed of a vertical shaft 19 that rotates and displaces together with the sun visor 10 is provided in the rotation support portion 16, and the rotation displacement of the vertical shaft 19 is restricted by the entry restriction means. When configured to do so, there is an advantage that the sun visor 10 can be effectively prevented from entering the expansion deployment region of the airbag 5 or the swing region of the roof trim with a simple configuration. A horizontal shaft that is rotationally displaced together with the sun visor 10 is provided, and the rotational displacement of the horizontal shaft is regulated by regulating means, so that the sun visor to the expansion deployment region of the airbag 5 or the swing region of the roof trim is provided. You may comprise so that 10 approach may be prevented.

  FIG. 9 is configured in the same manner as in the above reference example except that it is configured to restrict the lateral movement of the sun visor 10 by the entry restricting means comprising the existing assist grip 28 attached to the roof side rail 3. 1 illustrates an embodiment of the present invention. According to this configuration, the entry of the sun visor 10 into the expanded deployment region of the airbag 5 is easily and reliably regulated by the existing entry regulation means made of the interior member, so that the vehicle can be used in the event of a side collision of the vehicle. There is an advantage that the expansion and deployment of the airbag 5 can be reliably prevented from being obstructed by the sun visor 10.

  In the above embodiment, the rear portion 5 a of the airbag 5 is stored and disposed along the rear side portion of the rear pillar 4, and the extending portion 8 b extending downward along the rear side portion of the rear pillar 4 is provided at the rear of the roof trim 8. In addition to being provided at the end, the front edge of the extended portion 8b of the roof trim 8 and the rear edge of the upper portion 9a of the rear pillar trim 9 are superposed with each other. Since the rear portion 5a of the airbag 5 is inflated from the overlapping portion of the extending portion 8b of the roof trim 8 and the upper portion 9a of the rear pillar trim 9 to the vehicle interior side, the roof is in the case of a side collision of the vehicle. The airbag 5 housed and arranged along the side rail 3 is expanded and deployed downward, and the rear portion 5a of the airbag 5 housed and arranged along the rear side of the rear pillar 4 extends from the roof trim 8. And the leading edge of 8b (the flange portion 8c), can be bulged toward the front side of the vehicle body from the polymerization unit of the rear edge of the upper portion 9a of the rear pillar trim 9.

  Therefore, the side wall surface of the vehicle interior including the rear side portion of the rear pillar 4 can be covered over the wide range by the airbag 5 at the time of a side collision of the vehicle, and the occupant is urged to the side. When the head is pressed toward the installation portion of the rear pillar 4, the occupant can be effectively protected by the airbag 5. Moreover, since the rear portion 5a of the airbag 5 is retracted and disposed along the rear side portion of the rear pillar 4 as described above, the airbag 5 can be locked by locking the rear portion 5a of the airbag 5 to the side wall surface of the rear pillar 4. The deployment state can be stably maintained, and the support force for the head of the occupant pressed against the airbag is reduced as in the case where only the upper side of the airbag is supported and suspended from the roof side rail 3. There is an advantage that the head of the occupant can be supported stably without causing problems such as lack.

  In particular, in the above embodiment, the rear end portion of the airbag 5 is fixed to the wall surface of the rear pillar 4 located near the lower end portion of the extending portion 8b provided at the rear end portion of the roof trim 8 by the fixing bolt 13 or the like. Since the vehicle is fixed, the rear end of the airbag 5 is fixed to the wall surface (inner panel 4a) of the rear pillar 4 on the lower side of the vehicle body, so that the airbag 5 is stably deployed. When the occupant's head is pressed against the rear portion 5a of the airbag 5, the supporting force against the pressing force can be sufficiently secured.

  Further, as shown in the above embodiment, a fixing member 26 for fixing the front end portion of the airbag 5 to the front pillar 2 is provided, and the fixing position of the front end portion of the airbag 5 with respect to the front pillar 2 of the fixing member 26, that is, The position of the front end portion of the fixing member 26 locked by the locking tool 25 and the fixing position of the rear end portion of the airbag 5 with respect to the rear pillar 4, that is, the fixing of the rear portion 5a of the airbag 5 by the fixing bolt 13 or the like. When the positions are set to substantially the same height, the front end and the rear end of the airbag 5 are fixed to the wall surfaces of the front pillar 2 and the rear pillar 4 on the lower side of the vehicle body, respectively, at the time of a side collision of the vehicle. In this state, it can be expanded and deployed along the side wall surface of the passenger compartment. Therefore, there is an advantage that the supporting force against the pressing force can be further increased when the head of the occupant is pressed against the rear portion 5a of the airbag 5.

It is explanatory drawing which shows the inside of the vehicle carrying a head protection airbag apparatus. It is the II-II sectional view taken on the line of FIG. It is the III-III sectional view taken on the line of FIG. It is a fragmentary sectional view which shows the specific structure of the rotation support part of a sun visor. It is explanatory drawing which shows the use condition of a sun visor. It is the VI-VI sectional view taken on the line of FIG. FIG. 2 is a view corresponding to FIG. 1 showing a deployed state of the airbag. FIG. 3 is a view corresponding to FIG. 2 showing a state where the airbag is deployed. FIG. 3 is a view corresponding to FIG. 2 showing an embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inflator 3 Roof side rail 5 Air bag 8 Roof trim 8a Side part of roof trim 10 Sun visor 11 Weather strip 16 Rotation support part 19 Vertical axis 28 Assist grip

Claims (4)

  An airbag that is stored and arranged along the roof side rail, and that expands and deploys along the side wall surface of the passenger compartment by the operation of the inflator in the event of a side collision of the vehicle, and a vehicle whose side portion is the airbag and the roof side rail. A roof trim that covers a wall surface on the room side, is pressed by the airbag when the airbag is deployed, and swings and displaces toward the vehicle interior to form a gap between the roof side rail, a sun visor, and a vertical A roof side rail including a rotation support portion that rotatably supports a sun visor about a shaft and allows the sun visor to swing from a front support position to a side use position. An assist grip is provided above the airbag installation part on the side wall surface of the vehicle interior, and this assist grip is brought into contact with the sun visor swinging to the side use position. It the interior structure of a vehicle equipped with a head protection air bag device characterized by being configured to secure the vehicle width direction of the gap between the upper end portion and the roof trim visor.   The interior structure of a vehicle on which the head protection airbag device according to claim 1 is mounted, wherein the side edge of the roof trim is removably locked to a weather strip provided on the roof side rail. And an interior structure of a vehicle equipped with a head protection airbag device, wherein the assist grip is installed so as to extend from the upper side of the side portion of the roof trim to the vehicle interior.   The interior structure of a vehicle equipped with the head protection airbag device according to claim 1 or 2, wherein the assist grip extends obliquely downward from a vehicle interior side wall surface of the roof side rail. Interior structure of a vehicle equipped with a head protection airbag device.   The interior structure of a vehicle equipped with the head protection airbag device according to any one of claims 1 to 3, wherein the sun visor enters the swing displacement region of the roof trim by an assist grip. An interior structure of a vehicle equipped with a head protection airbag device characterized by being configured.

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