JP5954273B2 - Airbag device with roof for vehicle - Google Patents

Description

  The present invention relates to a vehicle roofed airbag device disposed on a ceiling of a passenger compartment.

  In the automobile airbag device described in Patent Document 1 below, an airbag unit for protecting a center seat occupant seated in the center of the front seat in the vehicle width direction is a dead space located in front of the vehicle in the rearview mirror. It is arranged. This effectively protects the passenger in the center seat and facilitates the layout of the airbag unit.

JP-A-6-206510

  By the way, when the front side member of the vehicle in the vehicle width direction outer side collides with a collision object such as an oncoming vehicle (so-called minute lap collision), or when the vehicle collides frontally with respect to the collision object. At the time (so-called oblique collision), the vehicle occupant moves inertially forward by an impact. For example, when the passenger's seat side of the vehicle has a minute lap collision, the passenger in the driver's seat moves obliquely toward the front side of the vehicle and the inner side in the vehicle width direction. In such a case, in order to restrain the occupant at an early stage, for example, the airbag (roof with a roof) may be inflated and deployed from the rear side portion of the vehicle to the lower side than the rearview mirror on the ceiling of the passenger compartment. Conceivable.

  However, in a vehicle in which an overhead console is provided on the rear side of the vehicle in the rearview mirror, it is difficult to secure a space for installing the roof-attached airbag while ensuring the function of the overhead console.

  In consideration of the above facts, the present invention provides a vehicle roofed airbag apparatus capable of both ensuring the function of the overhead console and securing the installation space of the roofed airbag in a vehicle provided with an overhead console. The purpose is to obtain.

  According to the first aspect of the present invention, there is provided a vehicular roofed airbag device that is mounted on a vehicle having an overhead console at a center portion in the vehicle width direction at a front portion of a ceiling of a passenger compartment, and generates gas by being operated. An inflator to be mounted, and a roof-attached airbag that is disposed in a folded state along the outer periphery of the overhead console in plan view and that is inflated and deployed to the vehicle lower side when the gas is supplied to the inside. .

  In the first aspect of the present invention, for example, the inflator is operated when the vehicle has a minute lap collision or an oblique collision. Then, the airbag with a roof disposed in a folded state along the outer periphery of the overhead console in plan view is inflated and deployed toward the vehicle lower side. Thereby, the passenger | crew who carries out an inertial movement diagonally toward the vehicle front side and a vehicle width direction inner side can be restrained with an airbag with a roof. Moreover, in the present invention, since the folded roof airbag is disposed as described above, it is possible to ensure both the function of the overhead console and the space for arranging the roof airbag.

  According to a second aspect of the present invention, there is provided the vehicle roof airbag apparatus according to the first aspect, wherein the roof airbag is disposed along each of a rear end portion, a left end portion, and a right end portion of the overhead console. A rear bag portion, a left bag portion, and a right bag portion, and each of the bag portions is fixed to the ceiling.

  In the invention according to claim 2, when the inflator is activated, the rear bag portion, the left bag portion, and the right bag portion of the roofed airbag are inflated from the rear end portion, the left end portion, and the right end portion of the overhead console to the vehicle lower side. expand. Each of these bag portions is fixed to the ceiling, and the roofed airbag is supported by the vehicle body at at least three locations. Thereby, the passenger | crew's head etc. which enter into a roof-attached airbag from the diagonally backward side of a vehicle can be favorably received by the roof-attached airbag.

  The air bag apparatus with a roof for a vehicle according to a third aspect of the present invention is the air bag device for a roof according to the second aspect, wherein the rear bag portion, the left bag portion, and the right bag portion are in communication with each other, and the inflator is The rear bag portion is provided.

  In the third aspect of the invention, since the gas from the inflator passes through the rear bag portion and is supplied into the left bag portion and the right bag portion, the left bag portion and the right bag portion can be inflated and deployed with good balance.

  According to a fourth aspect of the present invention, there is provided the vehicle roof-attached airbag device according to the fourth aspect, wherein the vehicle is installed between the front portion and the rear portion of the left bag portion and the right bag portion. When the stretched member is stretched during the inflation and deployment, the front portions of the left bag portion and the right bag portion protrude outward in the vehicle width direction.

  In the invention according to claim 4, when the roofed airbag is inflated and deployed, the extending members stretched between the front portions and the rear portions of the left bag portion and the right bag portion are extended, respectively. The front portions of the left bag portion and the right bag portion protrude in the vehicle width direction. As a result, when the occupant's head or the like enters the roof-attached airbag from the diagonally rear side of the vehicle due to the impact of a minute lap collision or oblique collision, each front part (outside in the vehicle width direction) The head or the like can be satisfactorily received by the protruding portion).

  According to a fifth aspect of the present invention, there is provided a vehicle roof airbag apparatus according to the first aspect, wherein the roof airbag is disposed along each of a left end portion and a right end portion of the overhead console. Each of the left bag portion and the right bag portion in an inflated and deployed state is connected by a non-inflatable member having flexibility.

  In the invention according to claim 5, when the inflator is activated, the left bag portion and the right bag portion of the roofed airbag are inflated and deployed from the left end portion and the right end portion of the overhead console to the vehicle lower side. Since the rear end portions of the left bag portion and the right bag portion are connected by a non-inflatable member having flexibility, the occupant's head or the like entering the roof-attached airbag from the oblique rear side of the vehicle is covered with the roof-attached airbag. Can be received well. Moreover, since the roofed airbag is configured to include the non-inflatable member as described above, the capacity of the roofed airbag can be reduced.

  As described above, in the vehicle roof-attached airbag device according to the present invention, in the vehicle provided with the overhead console, both securing the function of the overhead console and securing the installation space for the roof-attached airbag are compatible. Can do.

It is the longitudinal cross-sectional view which looked at the structure of the vehicle compartment front part of the motor vehicle comprised by applying the airbag apparatus for roofs which concerns on 1st Embodiment of this invention from the vehicle width direction, and is the expansion | swelling of a roofed airbag It is a figure which shows an unfolded state. It is the schematic plan view which looked at the composition of the front part of the vehicle room from the vehicle upper part, and is a figure showing the state of inflation and deployment of an air bag with a roof. (A) is a plane development view of the base fabric of the airbag with the roof, and (B) is a plane development view of the airbag with the roof. It is an expanded sectional view which expands and shows the cut surface corresponding to the F4-F4 line of FIG. 2, and is a figure which shows the state in the middle of expansion | deployment of the airbag with a roof. It is a top view which expands and shows a part of FIG. 2, and is a figure which shows the folding state of the airbag with a roof. The structure of the principal part of the airbag apparatus with a roof for vehicles which concerns on the 2nd Embodiment of this invention is shown, (A) is the top view which looked at the expansion | deployment deployment state of the airbag with a roof from the vehicle upper side, (B ) Is a side view of the inflated and deployed state of the roofed airbag as seen from the vehicle width direction. It is a plane development view of the airbag with the roof. The structure of the principal part of the airbag apparatus with a roof for vehicles which concerns on the 3rd Embodiment of this invention is shown, (A) is the top view which looked at the expansion | deployment state of the airbag with a roof from the vehicle upper side, (B ) Is a side view of the inflated and deployed state of the roofed airbag as seen from the vehicle width direction.

<First Embodiment>
The vehicle roofed airbag apparatus 10 according to the first embodiment of the present invention will be described below with reference to FIGS. In addition, the arrow FR, arrow UP, and arrow OUT that are appropriately described in each figure respectively indicate the front direction (traveling direction), the upward direction, and the outside in the vehicle width direction of the vehicle. Hereinafter, when simply using the front-rear, up-down, left-right directions, the front-rear direction in the vehicle front-rear direction, the up-down direction in the vehicle up-down direction, and the left-right direction in the traveling direction are indicated unless otherwise specified.

(Constitution)
As shown in FIG. 1, the automobile 12 (vehicle) to which the vehicle roof airbag apparatus 10 according to the present embodiment is applied is, for example, a sedan type. As shown in FIGS. 1 and 2, a driver's seat 16 (here, a driver seat for a left-hand drive vehicle) and a passenger seat 18 are provided in the front portion of the passenger compartment 14 of the automobile 12. The driver's seat 16 and the passenger seat 18 include a seat cushion 20 on which the occupants D and P are seated, a seat back 22 that is connected to the rear end of the seat cushion 20 and serves as a backrest for the occupants D and P, and And a headrest 24 connected to the upper end portion and supporting the heads of the occupants D and P. In FIG. 2, illustration of the lower body of the seat cushion 20 and the occupants D and P is omitted.

  The ceiling 26 of the passenger compartment 14 is configured such that the lower surface side of the roof panel 28 is covered with a roof head lining 30. An overhead console 32 is provided at the center in the vehicle width direction at the front end of the ceiling 26. The overhead console 32 is formed in a shallow square dish shape, for example, of a resin material, and is disposed behind the rear mirror 33 in the vehicle.

  The overhead console 32 is in contact with the lower surface of the roof head lining 30 at the upper edge, and is fixed to the roof panel 28 at a location not shown. The roof head lining 30 is formed with a rectangular opening 34 in a plan view at a portion facing the overhead console 32. As shown in FIG. 5, the overhead console 32 is provided with a pair of left and right map lamps 36, a room lamp 38, and a switch 40 for operating these lamps. In FIG. 2, reference numerals of the map lamp 36, the room lamp 38, and the switch 40 are omitted for easy understanding of the drawing.

  On the above-described overhead console 32, a roof-attached airbag 42 and an inflator 46 (gas generator) that constitute the main part of the vehicle roof-attached airbag apparatus 10 are mounted. The roof-attached airbag 42 has a long length when one base cloth 48 shown in FIG. 3A is folded in two along the fold line L and the outer peripheral edge is sewn at the sewing portion T. It is formed in a bag shape (see FIG. 3B). The base fabric 48 is made of, for example, a nylon or polyester fabric material.

  A pair of slits 50 and 52 cut from one edge in the width direction to the other end in the width direction are provided side by side in the longitudinal direction of the roof airbag 42. It has been. Thus, the roofed airbag 42 is partitioned into a rear bag portion 54, a left bag portion 56, and a right bag portion 58. However, the slits 50 and 52 do not reach the other edge in the width direction of the roofed airbag 42, and the bag portions 54, 56, Communication portions 60, 62 that communicate with the interior of 58 are provided.

  The roof-attached airbag 42 is not limited to the configuration in which the roof-attached airbag 42 is sewn with a single base fabric, and the bag-like roof-attached airbag 42 is formed by stitching the two peripheral fabrics and sewing the outer peripheral edge portion. You may make it the structure made. The method for manufacturing the roofed airbag 42 is not limited to sewing, and the roofed airbag 42 may be manufactured by, for example, a bag weaving method (so-called OPW method) using an automatic loom.

  On the other end in the width direction of the roofed airbag 42, tabs 64 and 66 are provided at portions corresponding to the left bag portion 56 and the right bag portion 58, respectively. These tabs 64 and 66 are made of the same fabric material as the base fabric 48 and are fixed to the roofed airbag 42 by means such as sewing. The tab 64 on the left bag portion 56 side is provided near the center portion of the left bag portion along the longitudinal direction of the roofed airbag 42, and the tab 66 on the right bag portion 58 side is provided on the roof airbag 42. It is provided in the vicinity of the central portion of the right bag portion along the longitudinal direction. These tabs 64 and 66 correspond to the fixing brackets 68 and 70 shown in FIGS.

  The fixing brackets 68 and 70 are formed, for example, by bending a sheet metal material into a cross-sectional hat shape, and are disposed above the center in the vehicle front-rear direction at the left end and the right end of the overhead console 32. These fixing brackets 68 and 70 have flanges on the opening side joined to the lower surface of the roof panel 28 by means such as spot welding. The tabs 64 and 66 are locked to the fixing brackets 68 and 70 by a fixing tool 72, respectively. The fixture 72 is, for example, a clip that penetrates the tabs 64 and 66 and the fixing brackets 68 and 70.

  On the other hand, the inflator 46 (gas generating device) is a so-called cylinder type inflator having a cylindrical outer peripheral surface, and is accommodated in the rear bag portion 54 at the other end in the width direction of the roofed airbag 42. A pair of stud bolts 74 protrudes from the outer periphery of the inflator 46. These stud bolts 74 correspond to the fixing bracket 76 shown in FIGS. 1 and 5.

  The fixed bracket 76 has basically the same configuration as the above-described fixed brackets 68 and 70, and is disposed above the center in the vehicle width direction at the rear end of the overhead console 32. The pair of stud bolts 74 of the inflator 46 penetrates the base cloth 48 and the fixing bracket 76 of the roofed airbag 42 from below and is screwed into the nut. As a result, the inflator 46 is fixed to the roof panel 28 via the fixing bracket 76, and the rear bag portion 54 of the roof-attached airbag 42 is fixed to the roof panel 28 via the inflator 46 and the fixing bracket 76. The inflator 46 is disposed such that the axial direction (longitudinal direction) is along the vehicle width direction in the fixed state, and is disposed compactly along the rear end portion of the overhead console 32.

  In FIG. 2, the fixing portions 78, 80, and 82 to the ceiling 26 of the roofed airbag 42 are schematically shown for the sake of easy understanding of the drawing. These fixing portions 78, 80, 82 are fixing portions between the roof airbag 42 and the fixing brackets 68, 70, 76, and are arranged in an isosceles triangle shape in plan view. The isosceles triangle has a base along the vehicle width direction, a height direction along the vehicle front-rear direction, and a top portion between the two sides having the same length that is convex toward the vehicle rear side. Yes.

  The inflator 46 is modularized together with the roofed airbag 42 and is stored in the overhead console 32 before being fixed to the ceiling 26. Specifically, for example, the roofed airbag 42 is roll-folded from one end side in the width direction (the lower end side in FIG. 3B), and the rear bag portion 54, the left bag portion 56 and the like as shown in FIG. In the state where the right bag portion 58 is along the rear end portion, the left end portion and the right end portion of the overhead console 32 (the state where the roll-attached roof-attached airbag 42 is bent in a substantially U shape), the roof-attached air A bag 42 and an inflator 46 are accommodated in the overhead console 32.

  Doors 84 (see FIG. 4) are provided at the rear end, left end, and right end of the overhead console 32, respectively. These door portions 84 are formed of a resin material (for example, Thermo Plastic Olefin) softer than a resin material (for example, polypropylene) constituting the main body portion 86 of the overhead console 32. These door portions 84 are configured to be opened by receiving the inflation pressure of the roofed airbag 42 when the roofed airbag 42 is inflated by the gas pressure generated by the inflator 46 (see FIG. 4). (See the door portion 84 indicated by a two-dot chain line). Thereby, an opening is formed in the rear end, left end, and right end of the overhead console 32, and the roofed airbag 42 is inflated and deployed through the opening.

  As shown in FIGS. 1 and 2, the inflated and roofed airbag 42 is located on the vehicle front side and the vehicle width direction inner side with respect to the heads H of the passengers D and P of the driver seat 16 and the passenger seat 18. Be placed. As shown in FIG. 2, when the inflated and deployed state of the roofed airbag 42 is viewed in plan view, the rear bag portion 54 extends in the vehicle width direction, and the left bag portion extends from both ends in the vehicle width direction of the rear bag portion 54. 56 and the right bag portion 58 extend toward the vehicle front side, and the roofed airbag 42 as a whole has a substantially U shape with the vehicle front side open. Further, as shown in FIG. 1, when the inflated and deployed state of the roofed airbag 42 is viewed from the vehicle width direction, the lower end of the roofed airbag 42 is positioned below the upper surface 88A of the instrument panel 88. It is like that.

  On the other hand, as shown in FIG. 5, an ECU 90 (control device) mounted on the automobile 12 is electrically connected to the inflator 46. The ECU 90 is electrically connected to a longitudinal acceleration sensor 92 that detects the longitudinal acceleration of the automobile 12 and a lateral acceleration sensor 94 that detects the lateral acceleration of the automobile 12. The ECU 90 operates the inflator 46 to inflate and deploy the roofed airbag 42 when it detects an oblique collision or a minute lap collision of the automobile 12 based on signals from the longitudinal acceleration sensor 92 and the lateral acceleration sensor 94. It is configured.

  The oblique collision refers to a collision mode in which the automobile 12 obliquely collides with the collision object such as the oncoming vehicle in the front direction. Further, the micro lap collision refers to a collision mode in which a portion on the outer side in the vehicle width direction with respect to the front side member of the automobile 12 collides with a collision object such as an oncoming vehicle. When an automobile has a diagonal collision or a minute lap collision (both are asymmetrical collisions), the occupant's head is inertially moved forward by an impact unlike an automobile having a full-lap frontal collision (symmetrical collision). . For example, when the passenger seat 18 side of the automobile 12 obliquely collides with an oncoming vehicle or the like, the head H of the occupant D moves inertially in the direction of the arrow M1 or the arrow M2 in FIG. This moving direction is reversed in the left-right direction when the driver's seat 16 side of the automobile 12 collides obliquely, and the head H of the passenger D of the passenger seat 18 moves inertially forward of the vehicle and inward in the vehicle width direction. In the present embodiment, the fixing portions 78, 80, 82 are disposed above the position where the heads H of the occupants D, P may come into contact with the roofed airbag 42 by the inertial movement as described above. Yes.

  Although not shown in the drawings, in the present embodiment, a conventionally known driver's seat airbag device, passenger's seat airbag device, and left and right curtain airbag devices are mounted on the automobile 12. Further, each of the seat backs 22 of the driver's seat 16 and the passenger's seat 18 is equipped with a conventionally known side airbag device or the like, and the airbag device is appropriately selected by the ECU 90 at the time of an oblique collision and a minute lap collision. It is configured to be activated.

  When a pre-crash sensor for predicting (predicting) a frontal collision is electrically connected to the ECU 90, the ECU 90 predicts a frontal collision or a side collision based on a signal from the pre-crash sensor. You may make it the structure by which an airbag apparatus is act | operated suitably. Moreover, you may make it the structure which detects an asymmetrical collision using the left-right paired front-back acceleration sensor attached to the left-right front side member. In that case, the ECU 90 is configured to discriminate between a symmetric collision and an asymmetrical collision by comparing the difference in input timing of signals from the left and right longitudinal acceleration sensors with the magnitude of the output signal of each longitudinal acceleration sensor.

(Function and effect)
Next, the operation and effect of this embodiment will be described.

  In this embodiment, when the automobile 12 has a minute lap collision or an oblique collision, the driver's seat airbag device, the passenger's seat airbag device, the collision side (left or right) curtain airbag device, and the collision side (left or right) Each inflator of the right side airbag device is operated by the ECU 90. Thereby, the airbag of each airbag apparatus is inflated and deployed. At this time, the inflator 46 is operated by the ECU 90. Then, the roofed airbag 42 disposed in a folded state along the outer periphery of the overhead console 32 in plan view is inflated and deployed toward the vehicle lower side. As a result, the head D of the occupant D or the occupant P that is inertially moved obliquely toward the vehicle front side and the vehicle width direction can be quickly restrained by the roofed airbag 42. That is, as compared with the configuration in which the airbag is inflated and deployed from the dead space in front of the rearview mirror as in the airbag device with a roof described in the background art section, it is earlier in the vicinity of the head H of the passengers D and P. Since the roofed airbag 42 can be inflated and deployed, the head protection performance by the roofed airbag 42 can be improved.

  Moreover, since the roof-attached airbag 42 is arranged as described above in the folded state, the function of the overhead console 32 (the function of the map lamp 36 and the room lamp 38 in this case) during normal operation is ensured and the roof is attached. It is possible to achieve both securing the installation space for the airbag 42. Further, since the installation space of the overhead console 32 and the installation space of the roofed airbag 42 can be shared, the space of the vehicle compartment 14 is not eroded unnecessarily by the installation space of the roofed airbag 42. can do.

  Further, the roofed airbag 42 of the present embodiment includes a rear bag portion 54, a left bag portion 56, and a right bag portion 58 disposed along the rear end portion, the left end portion, and the right end portion of the overhead console 32, respectively. In the inflated and deployed state of the roof-attached airbag 42, the roof-attached airbag 42 has a substantially U shape that opens to the front side of the vehicle in plan view. Moreover, the bag portions 54, 56, and 58 are fixed to the roof panel 28, and the roofed airbag 42 is supported by the roof panel 28 in at least three places. Thereby, the occupant D or the head H of the occupant P entering the roofed airbag 42 from the obliquely rear side of the vehicle can be received well by the roofed airbag 42.

  In the present embodiment, the rear bag portion 54, the left bag portion 56, and the right bag portion 58 are connected to each other by the communication portions 60 and 62, and the inflator 46 is provided in the rear bag portion 54. Yes. For this reason, when the inflator 46 is operated, the gas from the inflator 46 passes through the rear bag portion 54 and is supplied into the left bag portion 56 and the right bag portion 58. Therefore, the left bag portion 56 and the right bag The part 58 can be inflated and deployed with good balance. In addition, since the rear bag portion 54 is fixed to the roof panel 28 using the stud bolt 74 of the inflator 46, the configuration for fixing the roofed airbag 42 to the ceiling 26 can be simplified.

  Next, another embodiment of the present invention will be described. In addition, about the structure and effect | action similar to the said 1st Embodiment, the same code | symbol as the said 1st Embodiment is provided, and the description is abbreviate | omitted.

<Second Embodiment>
FIG. 6A is a plan view showing an inflated and deployed state of the roofed airbag 100, which is a constituent member of the vehicle roofed airbag apparatus according to the second embodiment of the present invention. In (B), the inflated and deployed state of the airbag 100 with the roof is shown in a side view. The roofed airbag 100 includes a rear bag portion 54, a left bag portion 56, and a right bag portion 58 in the same manner as the roofed airbag 42 according to the first embodiment. However, in the roofed airbag 100, the front portions of the left bag portion 56 and the right bag portion 58 are overhanging portions 56A and 58A (protruding portions), and the rear portions of the left bag portion 56 and the right bag portion 58 Straps 102 and 104 (extension members) are bridged between the left and right projecting portions 56A and 58A, respectively.

  In the above-described roofed airbag 100, slits 106 and 108 similar to the slits 50 and 52 are added to the left bag portion 56 and the right bag portion 58, as shown in FIG. These slits 106 and 108 are formed in the vicinity of each central portion along the longitudinal direction of the roofed airbag 100 in the left bag portion 56 and the right bag portion 58. By these slits 106 and 108, the left bag portion 56 and the right bag portion 58 are divided into front projecting portions 56A and 58A and a rear portion.

  The straps 102 and 104 (not shown in FIG. 7) are provided so as to be positioned on the upper surface of the roofed airbag 100 when the roofed airbag 100 is inflated and deployed, and one end in the longitudinal direction is sewn. The other ends in the longitudinal direction are fixed to the rear portions of the left bag portion 56 and the right bag portion 58 by means such as sewing.

  The lengths of the straps 102 and 104 are set so as to be extended when the roofed airbag 100 is inflated and deployed. Thus, in the inflated and deployed state of the roofed airbag 100, the overhanging portions 56A and 58A are pulled toward the vehicle rear side by the tension from the straps 102 and 104, and protrude outward in the vehicle width direction (see FIG. 6 (A) illustrated state).

  In this embodiment, the configuration other than the above is the same as that of the first embodiment. Therefore, the same effect as the first embodiment can be obtained. In addition, in this embodiment, the left bag portion 56 and the right bag portion 58 are provided with the overhang portions 56A and 58A as described above, respectively, so that the occupant D or the passenger D entering the roof-attached airbag 100 from the oblique rear side of the vehicle The head H or the like of the occupant P can be satisfactorily received by the overhanging portion 56A or the overhanging portion 58A.

  Further, when the airbag 100 with a roof is inflated and deployed, the straps 102 and 104 that are stretched between the rear portions of the left bag portion 56 and the right bag portion 58 and the overhang portions 56A and 58A are stretched. Displacement of the overhanging portion 56A or the overhanging portion 58A toward the vehicle front side due to a load from the portion H or the like can be suppressed, and a reaction force (binding force) can be favorably applied to the head H or the like. As a result, the occupant restraint performance of the roofed airbag 100 can be effectively improved.

  In the second embodiment, the straps 102 and 104 are provided on the top surface of the inflated and deployed roof airbag 100. However, the present invention is not limited to this, and the inflated and deployed roof airbag. The straps 102 and 104 may be provided on the lower surface of the 100, or the straps 102 and 104 may be provided on both the upper and lower surfaces of the inflated and deployed roof airbag 100.

<Third Embodiment>
FIG. 8A shows a plan view of the inflated and deployed state of the roofed airbag 110, which is a constituent member of the vehicle roofed airbag apparatus according to the third embodiment of the present invention. In (B), the inflated and deployed state of the airbag 110 with the roof is shown in a side view. The roofed airbag 110 is configured in the same manner as the roofed airbag 100 according to the second embodiment in that it includes the above-described overhang portions 56A and 58A and straps 102 and 104.

  However, the airbag 110 with the roof is not provided with the rear bag portion 54, and the rear end portions of the left bag portion 56 and the right bag portion 58 in the inflated and deployed state are connected by the non-inflatable member 112. Yes. The non-inflatable member 112 is formed of, for example, a cloth material similar to the base fabric of the roofed airbag 110, a net-shaped member, a strap-shaped member, or a sheet-shaped member. It has the same flexibility as the base fabric.

  The roof-attached airbag 110 includes left and right duct portions 114 and 116 that connect the left and right bag portions 56 and 58 and the inflator 46. When the inflator 46 is operated, these duct portions 114 are provided. , 116 is supplied to the left and right bag portions 56, 58. As a result, when the left and right bag portions 56 and 58 are inflated and deployed, as shown in FIG. 8A, the non-inflatable member 112 is expanded between the rear end portions of the left and right bag portions 56 and 58, and the non-inflatable The roofed airbag 110 configured to include the member 112 is even configured to have a substantially U-shape opened to the front side of the vehicle in a plan view.

  In this embodiment, the configuration other than the above is the same as that of the second embodiment. Therefore, the same effect as the second embodiment can be obtained. In addition, in this embodiment, since the roofed airbag 110 includes the non-inflatable member 112, the capacity of the roofed airbag 110 can be reduced. As a result, the roofed airbag 110 can be inflated and deployed at an early stage, and the initial occupant restraint performance by the roofed airbag 110 can be improved.

(Supplementary explanation of the embodiment)
In each of the above-described embodiments, in the state in which the roofed airbags 42, 100, and 110 are inflated and deployed, a gap is formed between the left bag portion 56 and the right bag portion 58. Not limited to this, the inflated and deployed left bag portion 56 and right bag portion 58 may be in contact with each other. Thereby, since the left and right bag portions 56 and 58 can be supported with each other, the occupant restraint performance can be improved.

  In each of the above embodiments, the folded roofed airbags 42, 100, 110 are configured to be accommodated in the overhead console 32. However, the present invention is not limited to this, and the folded roofed airbag is used. 42, 100, and 110 may be arranged between the roof panel 28 and the roof head lining 30 outside the overhead console 32. In that case, for example, a tear line that is broken by receiving the inflation pressure of the roofed airbags 42, 100, 110 is formed in the overhead console 32, and the roofed airbags 42, 100, 110 below the overhead console 32 are formed. It is necessary to configure so as to allow expansion and deployment.

  In addition, the present invention can be implemented with various modifications without departing from the scope of the invention. It goes without saying that the scope of rights of the present invention is not limited to the above embodiments.

DESCRIPTION OF SYMBOLS 10 Airbag apparatus with roof 14 Car compartment 26 Ceiling 32 Overhead console 42 Roof airbag 46 Inflator 54 Rear bag part 56 Left bag part 56A Overhang part 58 Right bag part 58A Overhang part 100 Roof airbag 102,104 Strap (Extension member)
110 Airbag with roof 112 Non-inflatable member

Claims (5)

An inflator that is mounted on a vehicle provided with an overhead console at the center in the vehicle width direction in the front part of the ceiling of the passenger compartment and generates gas by operating;
A roof-attached airbag that is disposed in a folded state along the outer periphery of the overhead console in plan view and that is inflated and deployed to the vehicle lower side when the gas is supplied to the inside;
An air bag apparatus with a roof provided with a vehicle.   The roof-attached airbag has a rear bag portion, a left bag portion, and a right bag portion disposed along a rear end portion, a left end portion, and a right end portion of the overhead console, respectively, The airbag apparatus with a roof for a vehicle according to claim 1, wherein the airbag apparatus is fixed to the ceiling.   The airbag apparatus with a roof for a vehicle according to claim 2, wherein the rear bag portion, the left bag portion, and the right bag portion are connected to each other inside, and the inflator is provided in the rear bag portion. .   Each of the front portions of the left bag portion and the right bag portion is stretched at the time of the inflating and deploying, so that each front portion of the left bag portion and the right bag portion is stretched between the front portion and the rear portion of the left bag portion. The vehicle roof-attached airbag device according to claim 2 or 3, wherein the portion protrudes outward in the vehicle width direction.   The roofed airbag has a left bag portion and a right bag portion disposed along a left end portion and a right end portion of the overhead console, respectively, and is in an inflated and deployed state in the left bag portion and the right bag portion. 2. The vehicle roof-attached airbag device according to claim 1, wherein rear end portions of the vehicle are connected by a non-inflatable member having flexibility.

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