WO2008038518A1 - Dispositif de coussin de sécurité - Google Patents

Dispositif de coussin de sécurité Download PDF

Info

Publication number
WO2008038518A1
WO2008038518A1 PCT/JP2007/067722 JP2007067722W WO2008038518A1 WO 2008038518 A1 WO2008038518 A1 WO 2008038518A1 JP 2007067722 W JP2007067722 W JP 2007067722W WO 2008038518 A1 WO2008038518 A1 WO 2008038518A1
Authority
WO
WIPO (PCT)
Prior art keywords
airbag
inflator
pipe member
retainer
airbag device
Prior art date
Application number
PCT/JP2007/067722
Other languages
English (en)
Japanese (ja)
Inventor
Shinichi Sugimoto
Takeshi Sone
Original Assignee
Takata Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Takata Corporation filed Critical Takata Corporation
Publication of WO2008038518A1 publication Critical patent/WO2008038518A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/217—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow

Definitions

  • the present invention relates to an airbag device installed in a vehicle such as an automobile.
  • Background art
  • An airbag device for a driver's seat that is inflated and deployed from the center of rotation of the steering wheel to the driver side, and an assistant that is inflated and deployed from the instrument panel to the passenger seat side
  • Various airbag devices are used to restrain the occupant's body in the event of a car crash, such as a seat airbag.
  • Patent Document 1 Japanese Patent Laid-Open No. 2002-37011
  • an airbag composed of a bag body combined with a base fabric is stored in a backrest (or headrest) of a vehicle seat, and pressure fluid from an inflator is supplied to the airbag in an emergency.
  • a backrest or headrest
  • pressure fluid from an inflator is supplied to the airbag in an emergency.
  • an object of the present invention is to provide a technique effective for improving the stability of the entire airbag device and improving the flexibility of layout.
  • a first invention is constituted by a bag body coupled with a base fabric, and an airbag provided in a seat of an automobile so as to expand above a passenger's head when inflated.
  • An inflator for supplying a pressure fluid for inflating and deploying the airbag, a pipe member connecting the airbag and the inflator, and an attachment portion for attaching the pipe member, And a retainer for storing and holding the airbag.
  • the pressure fluid is applied from the inflator to the airbag because it is attached to the mounting portion provided in the pipe member retainer for connecting the airbag and the inflator provided in the seat of the automobile.
  • the pipe member can be prevented from shaking during the supply, and the stability of the entire airbag device can be improved.
  • by adjusting the shape and size (length) of the mounting part it is possible to set the bow I winding path so that the pipe member passes through the desired position. Can be improved.
  • a second invention is characterized in that, in the first invention, a restraining member for restraining and fixing the pipe member to the mounting portion of the retainer is provided.
  • the pipe member is attached to the attachment portion using the restraining member.
  • the noise member can be firmly attached to the attachment portion. Therefore, the stability of the airbag device can be further improved.
  • a third invention is characterized in that, in the above-mentioned second invention, the attachment portion includes a convex portion for preventing the restraining member from being detached when the pipe member is restrained and fixed.
  • the mounting portion has the convex portion, even when the pipe member sways when the pressure fluid is supplied, the restraining member that restrains and fixes the pipe member is removed from the mounting portion. Power S to suppress detachment. Therefore, the force S can further improve the stability of the airbag device.
  • the stability of the entire airbag device can be improved, and the degree of layout freedom can be improved.
  • FIG. 1 shows a seat 1 of an automobile provided with an embodiment of the airbag apparatus of the present invention
  • Fig. 1 (a) shows a normal state
  • Fig. 1 (b) shows an airbag inflated.
  • an occupant 2 is seated on a seat 1.
  • the seat 1 has a seat portion 1A, and a backrest portion 1B protrudes upward from the seat portion 1A.
  • a headrest 1C is attached to the top of the backrest 1B.
  • the seat 1 is provided with an airbag device 10 in the backrest 1B for restraining the head 2A of the occupant 2 when the vehicle rolls over due to an accident.
  • This airbag device 10 is composed of a bag body in which a first panel and a second panel (not shown) are sewn and joined, and the airbag 11 provided so as to expand above the head 2A of the occupant 2 when inflated, A retainer 12 that accommodates the airbag 11 in a folded state, and an inflator 13 (see FIG. 2) that supplies a gas (pressure fluid) for inflating and deploying the airbag 11. .
  • the seat 1 includes a seat frame 14 that includes a side plate 14A, a cross member 14B, and the like and forms a skeleton of the seat 1, and the retainer 12 and the inflator 13 include the seat frame. 14 is provided.
  • the inflator 13 is ignited under the control of a control unit (not shown).
  • the airbag 11 is housed in a folded state in the retainer 12 in a normal state.
  • the inflator 13 of the airbag device 10 is ignited by a control unit (not shown), and the airbag 11 is inflated as shown in FIG. Deploy between passenger 2's head 2A.
  • the airbag 11 is inflated to push the head 2A of the occupant 2 forward by the action of the subbag (not shown), and the head 2A of the occupant 2 is bent forward to reduce the burden on the neck. it can.
  • FIG. 2 is a perspective view showing a structure for fixing the airbag device 10 to the seat frame 14.
  • the mounting portion M (to be described later), which is a characteristic portion of the present invention, is omitted for the sake of simplicity, and the shapes of the retainer 12, the inflator 13, the pipe member 20, and the like are simplified. .
  • the seat frame 14 includes a pair of side plates 14A, 14A provided on both sides in the vehicle width direction (both sides in the left-right direction in Fig. 2) in the back portion 1B (see Fig. 1) of the seat 1. And a cross member 14B extending between the side plates 14A and 14A so as to extend substantially along the vehicle width direction and connecting the side plates 14A and 14A.
  • the above rhino The plate plates 14A and 14A and the cross member 14B are both provided in the back portion 1B of the seat 1.
  • the seat frame 14 also has a base plate provided in the seat 1A.
  • a gas supply port 11a connected to the inflator 13 via the pipe member 20, and mounting pieces l located on both sides of the gas supply port 11a ib and l ib (not shown) are provided on the base end side (inflator side) of the airbag 11, a gas supply port 11a connected to the inflator 13 via the pipe member 20, and mounting pieces l located on both sides of the gas supply port 11a ib and l ib (not shown) are provided.
  • the mounting pieces l ib and l ib are respectively provided with two bolt holes (not shown) through which mounting bolts 21a for fixing the airbag 11 and the retainer 12 are passed.
  • the retainer 12 is provided with mounting portions having bolt holes (not shown) through which mounting bolts 23 for fixing the retainer 12 to the cross member 14B of the seat frame 14 are passed through on both sides in the vehicle width direction.
  • Each of 12a is provided, and a lower portion (inflator side) is provided with an attachment portion 12c having a bolt hole similarly formed at
  • a plurality (four in the present embodiment) of the mounting bolts 21a are bolt holes and airbag mounting portions that are formed in the retainer mounting portion 12c in a state where the airbag 11 is folded and stored in the retainer 12.
  • a plurality (two in this embodiment) of the mounting bolts 23 are passed through the bolt holes of the mounting portion 12a and then fastened to fastening holes (not shown) provided in the cross member 14B.
  • the retainer 12 stored in a state where the airbag 11 is folded is fixed to the cross member 14B.
  • the pipe member 20 is, for example, a metal pipe bent at a plurality of locations (two locations in the present embodiment), and is provided below the retainer 12. As shown in FIG. 3, which will be described later, the pipe member 20 includes a lower vertical portion 20a connected to the upper end portion of the inflator 13 by fastening or the like, and a horizontal portion bent horizontally rearward from the upper portion of the vertical portion 20a. An example in which the horizontal horizontal portion 20b is bent in the vehicle width direction on the same horizontal plane, and the gas supply port 1 la of the airbag 11 is covered with the horizontal horizontal portion 20b. For example, a vertical end connected by caulking with a metal clamp band 2 It is composed of Oc.
  • the vertical portion 20a below the pipe member 20 is connected to the upper end portion of the inflator 13 via the connection portion 16. In this way, the airbag 11 and the inflator 13 are connected via the pipe member 20! /.
  • the inflator 13 is provided further below the pipe member 20, and is attached to the side plate 14A on one side (the left side in the vehicle width direction in the present embodiment) by an attachment member 31 (see FIG. 2).
  • the mounting member 31 includes a pair of mounting plates 31A and 31B that sandwich and support the inflator 13, and a plurality of these mounting plates 31A and 31B are formed on the mounting plate 31A (four in this embodiment).
  • the rivets 31a are passed through a plurality of (four in this embodiment) rivet holes drilled at corresponding positions on the mounting plate 31B and connected by rivets, so that the inflator 13 is sandwiched therebetween.
  • the one end (right side in the vehicle width direction) of the mounting plate 31A is provided with a mounting portion 31C formed by bending approximately 90 degrees, and a plurality (two in this embodiment) of mounting bolts are provided. 23 is passed through the bolt holes drilled in the mounting portion 31C and fastened to fastening holes (not shown) provided in the side plate 14A, whereby the mounting member 31 is fixed to the side plate 14A. . As a result, the inflator 13 is fixed to the side plate 14A via the attachment member 31.
  • inflator 13 and the above-described control unit are connected by an appropriate cable 34 (not shown), and the ignition control of the inflator 13 is performed via the cable 34. It has become.
  • FIG. 3 is a perspective view showing the entire structure of the retainer having an attachment portion for attaching a pipe member connecting the inflator and the retainer for storing and holding the airbag, as viewed from above, and Fig. 4 similarly shows the retainer on the lower side.
  • FIG. 5 is an exploded perspective view of the retainer.
  • the retainer 12 includes a retainer main body 28 formed of a storage frame 34 having a rectangular cross-section storage space for storing the airbag 11 in a folded state, and the retainer main body 28.
  • a storage frame 34 formed with a bulging locking portion 35 having a horizontally long insertion opening 36 having a lower end opened on the upper surface of a cylindrical body having a horizontally long rectangular cross section integrally formed at the top,
  • a lid plate 30 covering the upper surface of the airbag 11 stored in the storage frame 34 by inserting and locking the horizontally long tongue piece 40 formed by the U-shaped punching hole 38 into the insertion slot 36 from below, and this lid
  • a tongue piece 42 is formed on the upper end of the plate 30 along with the horizontally long tongue piece 40 in the opening of the bulging locking portion 35, and is attached to the pipe member 20 substantially at the center of the lower end portion (inflator side).
  • a cover plate holding frame 46 having a mounting portion M.
  • the retainer body 28 is connected to the rectangular back plate 33 that supports the back surface of the airbag 11 that is stored in a folded state, and the storage frame 34 and the lower portion (inflator side) of the back plate 33 are connected to each other.
  • Two support frames 34a that support the lower surface of the bag 11 and two airbag frames 26 that extend downward from the lower end of the back plate 33 so as to correspond to the two airbag mounting portions 26 formed at the lower end of the lid plate holding frame 46.
  • the retainer mounting portion 12c and the mounting portions 12a and 12b provided on both sides in the vehicle width direction slightly above the retainer mounting portion 12c.
  • the lid plate 30 is formed of a rectangular flat plate made of a synthetic resin that can be elastically deformed.
  • the laterally long tongue piece 40 formed on the lower side (inflator side) is connected to the back side from the U-shaped punching hole 38.
  • the storage frame 34 is deformed toward the upper side, and the downward force is also inserted into and locked in the insertion port 36 of the bulging locking part 35 on the upper surface. I'm getting caught.
  • the lid plate holding frame 46 is bent in an L shape when viewed from the side, and a top plate 45 corresponding to the rectangular projection area of the storage frame 34 is formed on the top surface.
  • Projection pieces 44a and 44b extending upward are formed on both sides of the upper end side of 45, and notch recesses 42a and 42b are formed inside these projection pieces 44a and 44b.
  • These notch recesses 42a , 42b is locked to the insertion port 36 of the bulging locking portion 35 and is slightly shorter than the protruding pieces 44a, 44b.
  • FIG. 6 is a view taken in the direction of arrow A in FIG. [0035]
  • the mounting portion M for mounting the pipe member 20 includes a horizontal bent piece 48a disposed between the horizontal bent pieces 44c and 44d of the top plate 45, and the horizontal bent piece 48a.
  • a vertical bent piece 48b that is bent substantially vertically downward from the bent piece 48a and a semicircular arc-shaped pipe support piece 50 formed at the lower end of the vertical bent piece 48b. Is extended laterally from the end of the vertical bent piece 48b, and a locking hole 52 is formed through the bottom surface of the semicircular arc portion on the extended end side.
  • the mounting portion M is formed with two concave ribs 54 on the ridge lines at the convex bent portions of the horizontal bent piece 48a and the vertical bent piece 48b formed at the lower end of the top plate 45.
  • two convex ribs 56 are also formed on the ridge line in the concave bent portion, and the respective bent portions are reinforced by these concave rib 54 and convex rib 56.
  • the pipe member 20 has a convex portion 58 (conical bead) formed at a predetermined position in the longitudinal direction on the bottom surface of the horizontal horizontal portion 20b.
  • the locking hole 52 drilled in the pipe support piece 50 is threaded and locked in this state, and the clamp band (restraint) extends from the outer periphery of the pipe support piece 50 extending in the horizontal direction to the horizontal horizontal portion 20b of the pipe member.
  • Member By winding B, the horizontal horizontal part 20b is restrained and fixed to the mounting part M.
  • the pipe member 20 that connects the airbag 11 and the inflator 13 provided in the backrest portion 1B of the seat 1 is attached to the attachment portion M provided in the retainer 12. Since it is attached, the pipe member 20 can be prevented from swaying when gas is supplied from the inflator 13 to the airbag 11, and the stability S of the entire airbag device can be improved.
  • the shape and size (length) of the mounting portion M it is possible to set the routing route so that the pipe member 20 passes through a desired position. Improvements can be made.
  • the pipe member 20 is attached to the attachment portion M using the clamp band B as a restraining member. Therefore, since the pipe member 20 can be firmly attached to the attachment portion M, the stability of the airbag apparatus can be further improved.
  • the convex portion 58 (conical bead) is formed at a predetermined position in the longitudinal direction of the lower surface of the horizontal horizontal portion 20b of the pipe member 20.
  • the force S configured such that the attachment portion M is provided on the top plate 45 of the cover plate holding frame 46, and is not limited to this, and is applied to the lower end portion of the retainer main body 28. You may comprise so that it may provide.
  • FIG. 1 is an embodiment of an airbag apparatus according to the present invention, in which (a) is a normal state of the airbag, and (b) is a schematic side view of a vehicle seat showing the airbag inflated. is there.
  • FIG. 2 is a perspective view showing a structure fixed to a seat frame, which is an embodiment of the airbag device of the present invention.
  • FIG. 3 is a perspective view showing an overall structure of a retainer having an attachment portion for attaching a pipe member that connects an inflator and a retainer that stores and holds an airbag, as viewed from above.
  • FIG. 4 Similarly, a perspective view showing the entire structure of the retainer viewed from below, and Fig. 5 is an exploded perspective view of the retainer.
  • FIG. 5 is an exploded perspective view of the retainer.
  • FIG. 6 is a view on arrow A in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air Bags (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention concerne une technique efficace pour améliorer la stabilité de la totalité d'un dispositif de coussin de sécurité et son degré de liberté de configuration. Ledit dispositif de coussin de sécurité comprend un coussin de sécurité doté d'un corps formé de morceaux de tissu de base et installé dans un siège d'automobile pour se déployer au-dessus de la tête d'un occupant lorsqu'il a été gonflé, un gonfleur destiné à fournir un fluide sous pression pour gonfler et déployer le dispositif de coussin de sécurité, un élément de tuyau (20) destiné à relier le dispositif de coussin de sécurité et le gonfleur, une partie de montage (M) destinée à retenir et fixer une partie latéralement horizontale (20b) de l'élément de tuyau (20) au gonfleur au moyen d'une pièce de support de tuyau (50), une bande de serrage (B) et un dispositif de retenue pour recevoir et maintenir le dispositif de coussin de sécurité.
PCT/JP2007/067722 2006-09-28 2007-09-12 Dispositif de coussin de sécurité WO2008038518A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006264891A JP2008081004A (ja) 2006-09-28 2006-09-28 エアバッグ装置
JP2006-264891 2006-09-28

Publications (1)

Publication Number Publication Date
WO2008038518A1 true WO2008038518A1 (fr) 2008-04-03

Family

ID=39229956

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/067722 WO2008038518A1 (fr) 2006-09-28 2007-09-12 Dispositif de coussin de sécurité

Country Status (2)

Country Link
JP (1) JP2008081004A (fr)
WO (1) WO2008038518A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7032187B2 (ja) * 2018-03-13 2022-03-08 テイ・エス テック株式会社 サイドエアバッグ装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001295645A (ja) * 2000-04-13 2001-10-26 Toyota Motor Corp 排気管の支持構造
JP2002037011A (ja) * 2000-06-13 2002-02-06 Takata Corp 車両乗員のための保護装置および乗員の保護方法
JP2006143045A (ja) * 2004-11-22 2006-06-08 Toyota Motor Corp 乗員保護装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001295645A (ja) * 2000-04-13 2001-10-26 Toyota Motor Corp 排気管の支持構造
JP2002037011A (ja) * 2000-06-13 2002-02-06 Takata Corp 車両乗員のための保護装置および乗員の保護方法
JP2006143045A (ja) * 2004-11-22 2006-06-08 Toyota Motor Corp 乗員保護装置

Also Published As

Publication number Publication date
JP2008081004A (ja) 2008-04-10

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