JP2010052620A - Airbag device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an airbag device for the far side capable of adequately protecting an occupant when a side impact of a vehicle occurs. <P>SOLUTION: A console box 8 is attached to a projecting floor part 2a provided on a floor surface 2 of a vehicle 1. An airbag 22 is folded and accommodated in an accommodation recess 9a formed in a rear part of a console body 9 of the console box 8. The airbag 22 comprises a first inflation part 23 to be inflated and deployed in a space between adjacent occupants and a second inflation part 24 to be inflated and deployed in a space K between a front inclined surface 9c of the console body 9 and a shift lever 12, which are held so as to prevent the airbag 22 from being moved in the horizontal direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is for a far side that can be inflated and deployed between two occupants seated on a pair of left and right seats disposed at a predetermined interval in the vehicle width direction of a vehicle to protect the occupants. The present invention relates to an airbag apparatus.

  In the event of a side collision when another vehicle collides with the side of the vehicle, the seat back has a space between the inner side of the side door and the side of the occupant to protect the passenger sitting on the seat. A side airbag device that is inflated and deployed is provided, and a far-side airbag device that is inflated and deployed between two passengers is provided. Since the position of the airbag is regulated by the inner surface of the side door in the inflated and deployed state of the airbag, a reaction force against the occupant is generated in the airbag, and the occupant is properly protected. Can do. However, in the airbag device on the far side, the airbag is inflated and deployed between two passengers, and the lower surface of the airbag is merely in contact with the upper surface of the console box, for example. For this reason, since the movement of the airbag in the vehicle width direction cannot be prevented, when the occupant is moved toward the airbag, the airbag also moves in the vehicle width direction, and the occupant is appropriately protected. There was a problem that could not.

In order to solve the above-mentioned conventional problems, Patent Document 1 proposes a protection device for a front seat occupant of an automobile. This protective device is provided with an extension portion (switch operation surface) protruding toward the rear of the vehicle at the center of the instrument panel, and an airbag that instantly inflates in response to a signal from the vehicle impact detection means is provided below the extension body. There is disclosed an airbag device that is provided in a corresponding portion and that is in contact with at least the lower surface of the extension portion when the airbag is inflated to regulate the position of the airbag.
Japanese Patent Laid-Open No. 5-208647 [see paragraphs (007 to 009) and FIGS. 3 and 4 of the specification]

  However, the front-seat occupant protection device disclosed in Patent Document 1 has an airbag inflated and deployed region because the extension and the airbag provided on the instrument panel are in front of the occupant's trunk. However, there was a risk that the passenger could not be properly protected by the airbag. There is also a problem that it cannot be applied to an automobile having no extension.

  The present invention eliminates the problems in the prior art and can properly protect the occupant in the event of a side collision of the vehicle, and can expand the applicable range. It is providing the airbag apparatus of this.

  In order to solve the above problems, the invention according to claim 1 is an airbag device that is inflated and deployed in a space between passengers seated in a pair of left and right seats of a vehicle. A first inflating portion that is inflated and deployed above a vehicle interior structure disposed between seats of the two seats, and an inflated and deployed state provided at a front or rear lower portion of the first inflating portion; And a second inflating part engaged with a rear or front side of the vehicle interior structure, a convex part or a concave part provided in a vehicle body behind or in front of the car interior structure, and the first inflating part And in a state in which the second inflating portion is folded, a housing container that is accommodated in the vehicle interior structure, a vehicle body in front of or behind the vehicle interior structure, or a ceiling portion of the vehicle, the first expansion portion and the second And an expansion gas supply means for supplying an expansion gas into the expansion portion. It is the gist of.

  The gist of the invention of claim 2 is that, in claim 1, the storage container is provided in a storage space of a console box as the vehicle interior structure or in the rear of the space.

A gist of a third aspect of the present invention is that, in the first or second aspect, the first inflatable portion is formed so as to be in contact with the lower surface of the ceiling portion of the vehicle in the inflated and deployed state.
According to a fourth aspect of the present invention, in the first or second aspect, the second inflatable portion is a convex portion mounted on a projecting floor portion as a vehicle interior structure provided on the floor surface of the vehicle in the inflated and deployed state. The gist of the present invention is that it is formed so as to be pressed against the shift lever for shifting.

  According to a fifth aspect of the present invention, in the first or second aspect, a part of the second expansion portion is formed on a protruding floor portion as a vehicle interior structure provided on the floor surface of the vehicle in an inflated and deployed state. The gist of the present invention is that it is formed so as to be fitted into the hole as the recess for the cup holder.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects, the second inflatable portion is formed at a lower portion of the two first cloth pieces forming the first inflatable portion of the airbag. The two second cloth pieces are integrally provided, and the outer peripheral edges of the first cloth piece and the second cloth piece are joined by a joining portion to form a first inflating portion and a second inflating portion. This is the gist.

(Function)
In the present invention, in the inflated and deployed state of the airbag, the second inflating portion is engaged with the convex portion or the concave portion provided in the vehicle interior structure or the vehicle body in front of or behind the vehicle interior structure. The inflating part is held at a predetermined position. For this reason, even if a 1st expansion part is also hold | maintained in the predetermined position by the 2nd expansion part, and a 1st expansion part is pressed in the vehicle width direction by the passenger | crew at the time of the side collision accident of a motor vehicle, the 1st expansion part is The movement of the inflating portion in the vehicle width direction is suppressed, and the occupant can be properly protected by the first inflating portion.

  Further, the shift lever provided on the upper surface of the vehicle interior structure can be used as a convex portion, or the hole for the cup holder can be used as a concave portion, so that the applicable range of the airbag device can be expanded. .

  ADVANTAGE OF THE INVENTION According to this invention, when a side collision accident of a vehicle generate | occur | produces, while a passenger | crew can be protected appropriately, an application range can be expanded.

Hereinafter, an embodiment of an airbag device embodying the present invention will be described with reference to FIGS.
In the following description, the up-down direction coincides with the up-down direction of the vehicle, the front-rear direction coincides with the front-rear direction of the vehicle, the left-right direction coincides with the width direction of the vehicle, and coincides with the left-right direction when the vehicle moves forward. To do.

  As shown in FIG. 1, a driver's seat 3 and a passenger seat 4 are attached to the floor 2 of the vehicle 1 as seats that are arranged side by side in the width direction of the vehicle 1. The driver's seat 3 includes a seat 3a that supports the thigh from the buttocks of the occupant P1, a backrest 3b that is configured to be reclining, and a head 3c that supports the head of the occupant P1. Similarly, the passenger seat 4 includes a seat 4a that supports the thigh from the buttocks of the occupant P2, a backrest 4b that is configured to be reclining, and a head 4c that supports the head of the occupant P2. ing.

  On both the left and right sides of the vehicle 1, body sides 5 constituting a part of the skeleton of the side portion of the vehicle 1 are provided substantially vertically, and a ceiling portion 7 is provided substantially horizontally on the top of the vehicle 1. Is provided. Further, a pillar 6 extends upward on the body side 5, and the ceiling portion 7 is supported by the pillar 6.

  Between the driver's seat 3 and the passenger seat 4, a protruding floor portion 2 a in which a part of the floor surface 2 protrudes upward is formed, and the longitudinal direction of the protruding floor portion 2 a is the vehicle front-rear direction. A console box 8 as a vehicle interior structure having a substantially rectangular parallelepiped shape is provided. The console box 8 includes a console body 9 fixed to the projecting floor 2a and a substantially rectangular lid body 10 attached above the console body 9. As shown in FIG. 2, a storage space 11 having a substantially rectangular parallelepiped shape for storing a portable product or the like is formed on the front side of the console body 9. The lid 10 is located above the upper surfaces of the seats 3a, 4a. The console body 9 and the lid body 10 are both made of a resin material.

  A shift lever 12 as a convex portion is mounted in front of the console box 8 of the protruding floor portion 2a. The protruding floor 2a between the console box 8 and the shift lever 12 is provided with a hole 13 as a recess for accommodating the cup. As shown in FIGS. 2 and 4, an accommodation recess 9 a having a substantially rectangular parallelepiped shape for accommodating the airbag device 14 is formed on the rear side of the console body 9.

Next, the airbag device 14 accommodated in the accommodation recess 9a will be described with reference to FIGS.
As shown in FIG. 4, a receiving box 16 having a bottomed square box shape is received in the receiving recess 9 a of the console body 9, and the receiving container 16 forms a bolt 17 at the bottom of the receiving recess 9 a of the console body 9. It is attached to the console body 9 by being screwed into the female screw 9b. An air bag 22, which will be described in detail later, is housed in the housing container 16 in a folded state. A retainer 19 that holds a cylindrical inflator 18 as an inflation gas supply means for supplying inflation gas to the airbag 22 is accommodated at the bottom of the accommodation container 16. A gas generating agent (not shown) is accommodated in the inflator 18. Two bolts 20 are welded to the outer peripheral surface of the retainer 19, and both bolts 20 project downward through the bottom plate 16 a of the container 16. A nut 21 is screwed onto the bolt 20, and the retainer 19 is fastened and fixed to the bottom plate 16 a together with a base end connecting portion (retainer accommodating portion 26 i in FIG. 7) of the airbag 22.

Next, the configuration of the airbag 22 will be described below.
As shown in FIG. 1, the airbag 22 is schematically shown in FIG. 1. Between the occupants P1 and P2, a first inflating portion 23 is inflated and deployed in the vertical direction and the front-rear direction, and as shown in FIG. The first inflating portion 23 is connected to the front lower portion, and is configured by a front inclining surface 9c of the console main body 9 and a second inflating portion 24 inflated and deployed in a space K between the shift lever 12.

  As shown in FIGS. 5 and 6, the airbag 22 is configured by folding a single woven fabric base fabric 26 and connecting them by a connecting portion. As shown in FIG. 5, the base cloth 26 includes two first cloth pieces 26 a and 26 b that form the first inflating portion 23 and two second cloth pieces 26 c and 26 d that form the second inflating portion 24. And. As shown in FIGS. 6 and 7, a gas passage 28 is formed at the lower end of each of the first cloth pieces 26 a and 26 b to guide the expansion gas injected from the inflator 18 to the inside of the first expansion portion 23. The passage-forming cloth pieces 26e and 26f are integrally formed, and the cloth pieces 26e and 26f are connected by the folded-back portion 26g.

  When the airbag 22 is manufactured, the first cloth pieces 26a and 26b are viewed from the left and right directions so that the base cloth 26 shown in FIG. 5 is positioned at the lower end as shown in FIG. Fold up to overlap. In this state, the outer peripheral edges of the first cloth pieces 26a and 26b, the second cloth pieces 26c and 26d, and the passage forming cloth pieces 26e and 26f are joined by a joining portion 29 such as a sewing thread or an adhesive. By this step, as shown in FIG. 6, the first inflating portion 23 is formed by the first cloth pieces 26a and 26b, and the second inflating portion 24 is formed by the second cloth pieces 26c and 26d.

  As shown in FIG. 6, the connecting portion 29 is not formed at the rear end edge of the cloth piece 26f, but forms an opening 26h for reversing the first cloth pieces 26a and 26b and the second cloth pieces 26c and 26d. To do. Then, the cloth pieces of the airbag 22 are passed through the opening 26h so that the cloth pieces are reversed so that the coupling portion 29 is located inside the airbag 22 as shown in FIG. Thereafter, the retainer 19 holding the inflator 18 from the opening 26h shown in FIG. 6 is accommodated in a retainer accommodating portion 26i formed inside the folded portion 26g. The two bolts 20 connected to the retainer 19 protrude downward from two through holes formed in the folded portion 26g. Further, the opening 26 h is newly coupled by the coupling unit 30. By this step, as shown in FIG. 7, the gas passage 28 is formed by the cloth pieces 26e, 26f and the coupling portions 29, 30. As shown in FIG. 4, the bolt 20 protrudes downward from a through hole 16 b formed in the bottom plate 16 a of the container 16, and is fixed to the bottom plate 16 a by screwing a nut 21 into the bolt 20.

  As shown in FIG. 4, the first inflating portion 23 of the airbag 22 is housed inside the housing container 16 as a cactus fold structure which is a kind of bellows fold. That is, the first cloth pieces 26a and 26b and the second cloth pieces 26c and 26d of the base cloth 26 constituting the first inflating portion 23 are each folded in a bellows. The folded portions W of the cloth pieces appear alternately in the vehicle width direction, and the flat portions S are directed in the vehicle width direction. The first inflating part 23 and the second inflating part 24 may have a general zigzag accordion fold structure.

  As shown in FIG. 4, an airbag cover 33 is fitted and fixed to the upper end opening edge of the container 16. The airbag cover 33 is formed with a planned break portion 33a for opening the airbag cover 33 when the airbag 22 is inflated and deployed.

Next, the operation of the airbag device 14 configured as described above will be described.
When there is a collision (side collision) on the body side 5 of the vehicle 1, it is detected by a collision detection sensor (not shown) that a predetermined impact or more has been applied to the vehicle 1, and the drive current is supplied from the control circuit to the inflator. 18 is ignited by an ignition device (not shown). As a result, the gas generated from the gas generating agent of the inflator 18 flows into the airbag 22 and the airbag 22 expands upward. As the airbag 22 is inflated, the expected break portion 33a of the airbag cover 33 is broken by the inflation pressure, and the airbag cover 33 is opened. Subsequently, the airbag 22 is inflated and deployed by the gas supplied from the gas passage 28 to the inside of the first inflatable portion 23, as shown in FIG. Enter the space between the passengers P1 and P2. In synchronism with this, the gas supplied into the first inflating part 23 is supplied into the second inflating part 24, whereby the second inflating part 24 is inflated and deployed downward, As shown in FIGS. 2 and 3, the second inflating part 24 is inflated and deployed so as to be pushed into a space K between the front slope 9 c of the console body 9 and the shift lever 12. Further, as shown in FIGS. 1 and 2, the upper end portion of the first inflating portion 23 is pressed into contact with the lower surface of the ceiling portion 7 of the vehicle 1. Therefore, even when the occupant P1 (or occupant P2) moves in the vehicle width direction indicated by the arrow R (or L) in FIG. 1 in the case of a side collision of the vehicle 1, the airbag 22 is held at a substantially predetermined position. Therefore, the passenger P1 (or P2) is properly protected.

According to the airbag device 14 of the above embodiment, the following effects can be obtained.
(1) In the above embodiment, the airbag 22 is integrally connected to the first inflating portion 23 inflated and deployed in the space between the occupants P1 and P2, and the lower end portion of the first inflating portion 23, and The console body 9 includes a second inflating portion 24 that is inflated and deployed in a space K between the front slope 9c of the console body 9 and the shift lever 12. For this reason, as shown in FIG. 3, the front surface of the second inflating portion 24 of the airbag 22 is pressed against the shift lever 12, and as a result, a recess 24 a that engages the shift lever 12 is formed in the second inflating portion 24. Thus, the shift lever 12 prevents the second inflating portion 24 from moving in the vehicle width direction. On the other hand, the base end portion of the airbag 22 (the cloth pieces 26e and 26f and the folded portion 26g forming the gas passage 28) is connected to the bottom plate 16a of the container 16 by the retainer 19, as shown in FIG. . Therefore, as shown in FIGS. 1 to 3, the airbag 22 is prevented from rotating horizontally around the base end portion by the second inflation portion 24 in a state where the airbag 22 is inflated and deployed. Then, the movement of the occupant P1 (P2) is blocked by the airbag 22, and a reaction force against the occupant can be applied to the airbag 22, so that the occupant can be properly protected.

  (2) In the above embodiment, as shown in FIGS. 1 and 2, the upper end surface of the first inflating portion 23 is pressed against the lower surface of the ceiling portion 7 of the vehicle 1 with the airbag 22 inflated and deployed. It was to so. For this reason, the upper end portion of the airbag 22 is frictionally contacted with the lower surface of the ceiling portion 7, and the airbag 22 is prevented from rotating in the vehicle width direction in FIG. The function of holding the airbag 22 in a predetermined position is improved, and the occupant protection performance can be further improved as compared with the case of non-contact.

  (3) In the above embodiment, since the airbag 22 is formed by joining the base fabric 26 shown in FIG. 5 as shown in FIG. 6 with, for example, sewing threads, the structure of the airbag 22 is simplified and the manufacture is easy. The cost can be reduced.

  (4) In the above embodiment, the shift lever 12 provided on the upper surface of the projecting floor 2a can be used as a convex portion, or a hole for a cup holder can be used as a concave portion as will be described later. Since it is not necessary to limit the accommodation position of the bag apparatus 14, an application range can be expanded.

In addition, you may change the said embodiment as follows.
-As shown in FIG. 9, you may make it insert the 2nd expansion | swelling part 24 of the said airbag 22 in the hole 13 provided in the upper surface of the protrusion floor part 2a.

  As shown by a two-dot chain line in FIG. 8, a tether 35 for connecting the first cloth pieces 26a, 26b of the base cloth 26 to each other is connected to the first cloth pieces 26a, 26b by sewing threads or an adhesive, and the airbag. When the first inflating portion 23 of 22 is inflated and deployed, the amount of deployment of the first inflating portion 23 in the vehicle width direction may be regulated.

  Although not shown, the airbag device 14 is mounted on the ceiling portion 7, the airbag 22 is inflated and deployed, and the second inflatable portion 24 provided at the lower end portion of the console body 9 has the front slope 9 c and the shift lever 12. Alternatively, the second inflating part 24 may be inserted into the hole 13.

  The airbag device 14 is accommodated on the front side of the console box 8, the second inflating portion 24 is formed on the rear side of the first inflating portion 23, and the second inflating portion 24 is placed on the rear side of the console box 8 or the box You may make it engage with the convex part or recessed part provided in the vehicle body (floor surface 2) of 8 back.

  Although not shown, the airbag device 14 may be housed inside the lid 10 of the console box 8. The airbag device 14 may be accommodated in the front portion of the console box 8, accommodated in the protruding floor portion 2a, or accommodated in the vehicle body (floor surface 2) of the vehicle 1.

  Although not shown, the airbag device 14 may be mounted inside the accommodation space 11. In this case, the lid body 10 is configured to be opened when the airbag 22 is inflated and deployed.

  Although not shown, the second inflating portion 24 provided on the front side of the first inflating portion 23 is engaged with a convex portion or a concave portion provided in the vehicle body (floor surface 2) in front of the console box 8. Also good.

-Although not shown in figure, you may materialize as the airbag apparatus 14 of the far side of the rear seat of the vehicle 1. FIG.
(Definition)
In this specification, the vehicle interior structure includes, in addition to the console box 8 described above, a protruding floor portion 2a provided on the floor surface 2, a shift lever 12 or an armrest provided on the protruding floor portion 2a.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic cross-sectional view of a vehicle showing an inflated and deployed state of an airbag according to an embodiment of the airbag device of the present invention. The side sectional view of vehicles showing the inflated deployment state of an airbag similarly. The perspective view which shows the expansion | deployment deployment state of an airbag apparatus. The expanded longitudinal cross-sectional view which shows the accommodation state of the airbag of an airbag apparatus. The top view of the expansion | deployment state of the base fabric which comprises an airbag. The perspective view for demonstrating the manufacturing method of the airbag by a base fabric. The sectional side view which shows the expansion | deployment deployment state of the airbag of an airbag apparatus. The longitudinal cross-sectional view of an airbag. The perspective view of the airbag which shows another embodiment of this invention.

Explanation of symbols

  K: space, P1, P2 ... occupant, 1 ... vehicle, 2 ... floor surface, 2a ... protruding floor, 3a, 4a ... seat, 7 ... ceiling, 8 ... console box as vehicle interior structure, 11 ... Housing space, 12 ... Shift lever as convex part, 13 ... Hole as concave part, 16 ... Receiving container, 22 ... Air bag, 23 ... First inflating part, 24 ... Second inflating part, 26a, 26b ... First cloth Piece, 26c, 26d, second cloth piece, 29, 30, coupling portion.

Claims (6)

An airbag device that is inflated and deployed in a space between passengers seated on a pair of left and right seats of a vehicle,
The airbag is a first inflating portion that is inflated and deployed above a vehicle interior structure disposed between the seat portions of the two seats,
A convex portion provided at a lower part on the front side or the rear side of the first inflating portion and provided on a vehicle body on the rear side or the front side of the vehicle interior structure, behind or on the front side of the vehicle interior structure in the inflated and deployed state. Or a second inflatable portion engaged with the recess,
A storage container that is housed in the vehicle interior structure, a vehicle body in front of or behind the vehicle interior structure, or a vehicle ceiling, in a state in which the first expansion portion and the second expansion portion are folded,
An airbag device comprising: an inflation gas supply means for supplying an inflation gas into the first inflation portion and the second inflation portion. 2. The airbag device according to claim 1, wherein the storage container is provided in a storage space of a console box as the vehicle interior structure or in a rear of the space. 3. The airbag device according to claim 1, wherein the first inflating portion is formed so as to be in contact with a lower surface of a vehicle ceiling portion in an inflated and deployed state. 3. The shift lever according to claim 1 or 2, wherein the second inflating portion is pressed against a shift lever for shifting as a convex portion mounted on a projecting floor portion as a vehicle interior structure provided on the floor surface of the vehicle in an inflated and deployed state. An airbag device formed so as to be in contact with each other. In Claim 1 or 2, a part of said 2nd expansion part serves as said crevice for cup holders formed in the projection floor part as a vehicle interior structure provided in the floor of a vehicle in the state of expansion and deployment. An air bag device formed so as to be fitted into a hole. In any 1 item | term of Claims 1-5, two 2nd cloth pieces for formation of a 2nd expansion part are formed in the lower part of the two 1st cloth pieces which form the 1st expansion part of the said airbag. The airbag apparatus according to claim 1, wherein the airbag apparatus is provided integrally with each other, and the outer peripheral edges of the first cloth piece and the second cloth piece are joined by a joint portion to form a first inflatable portion and a second inflatable portion.

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