WO2008065805A1 - Appareil de coussin gonflable - Google Patents

Appareil de coussin gonflable Download PDF

Info

Publication number
WO2008065805A1
WO2008065805A1 PCT/JP2007/069588 JP2007069588W WO2008065805A1 WO 2008065805 A1 WO2008065805 A1 WO 2008065805A1 JP 2007069588 W JP2007069588 W JP 2007069588W WO 2008065805 A1 WO2008065805 A1 WO 2008065805A1
Authority
WO
WIPO (PCT)
Prior art keywords
airbag
pushed
small
folding
folded
Prior art date
Application number
PCT/JP2007/069588
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 WO2008065805A1 publication Critical patent/WO2008065805A1/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
    • B60R21/23—Inflatable members
    • B60R21/237—Inflatable members characterised by the way they are folded
    • 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

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 deployment performance of an airbag.
  • the first invention of the present application comprises an air bag that is composed of a bag body formed by sewing a base fabric, and restrains the head of an occupant who is unfolded and seated on the seat; Airbag An inflator that generates a pressure fluid to be supplied to the air bag, and a cover that stores the air bag in a folded state so as to cover the periphery of the air bag.
  • a push-up small fold portion that is located on the inflow side of the pressure fluid from the inflator and is folded at least once, and is folded in a bellows shape in the cover when stored, and is pushed when expanded.
  • a pushed-up body portion that is pushed up to the side opposite to the inflow side of the pressure fluid by a small folding portion for raising.
  • the airbag folded and stored in the storage portion of the retainer bulges upward.
  • the push-up small fold located on the pressure inflow side is pushed up when the pressure fluid swells, and then the pushed-up body is pushed up to the side opposite to the pressure fluid inflow side by the push-up force.
  • the pushed-up body part is folded in a bellows shape, so that the airbag can be slid out of the retainer with low resistance as it expands due to inflation, and can be smoothly deployed from the retainer. Can do.
  • the plurality of pushed-up small folds are configured to be included by the pushed-up large folds folded in a folding manner larger than the small folds. Therefore, when the body to be pushed up is pushed up by the supply of the pressure fluid from the inflator to the side opposite to the inflow side of the pressure fluid, the pressure fluid is applied to each of the plurality of small folds via the pushed-up large fold. Therefore, the pushed-up body portion can be smoothly deployed from the retainer.
  • a third invention of the present application is the first invention according to the second invention, wherein the airbag is a first fold for continuously folding the bag body so as to reduce its lateral dimension from a state before the fold. Process and the bag body whose dimension in the short direction is reduced in the first folding process. A second folding step for continuously folding the longitudinal direction so as to reduce the longitudinal direction, and the bag body whose longitudinal dimension is further reduced in the second folding step is inserted into the cover and stored. It is characterized by having been created by the storage process.
  • the long direction is changed by the second folding step.
  • the bag-like airbag continuously folded so as to be reduced is inserted into the force bar and stored by the storing process.
  • the pressure fluid force supplied from the inflator can be accommodated in the cover in a folded form in which the airbag is smoothly deployed by flowing into the pushed-up body part from the side of the small folding part for raising located on the pressure inflow side. it can.
  • a fourth invention of the present application is the third invention, wherein the airbag is formed with at least one small folded portion of the plurality of pushed-up small folded portions in the first folding step.
  • the airbag is formed with at least one small folded portion of the plurality of pushed-up small folded portions in the first folding step.
  • the remaining small folding portion of the plurality of pushed-up small folding portions and the small folding portion for lifting are formed, and in the storing step, the pushed-up large folding portion is formed. It was created by.
  • the remaining small folds of the raised small folds and the small folds for pushing are continuously folded with sufficient margin by the pushed large folds, so that the longitudinal dimension can be adjusted and the limited space is limited. Assembling inside the cover becomes easy. The invention's effect
  • FIG. 1 is a schematic side view of an automobile seat 1 provided with an embodiment of an airbag device of the present invention
  • FIG. 1 (a) is when the airbag device is not in operation
  • FIG. 1 (b) is It shows when the airbag device is in operation.
  • the seat (seat) 1 includes a seat portion 1A on which an occupant 2 is seated, and a backrest portion 1B that protrudes upward from the seat portion 1A that supports the back of the seated occupant 2.
  • a headrest 1C is attached to the top of the backrest 1B.
  • the seat 1 is equipped with an airbag device 10 in the backrest portion 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 is accommodated in a state in which the airbag 11 is folded and an inflator 13 (see FIG. 2) that supplies a gas (pressure fluid) for inflating and deploying the airbag 11 are provided.
  • 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.
  • the retainer 12 and the inflator 13 include the seat frame. 14 (see Figure 2 below).
  • 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. I am able to do it.
  • FIG. 2 is a perspective view showing a state where the airbag apparatus of FIG. 1 is attached to a seat frame.
  • the mounting portion M (described later) 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 of the seat 1 (see FIG. 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 side plates 14A, 14A and the cross member 14B are both provided in the backrest portion 1B of the seat 1.
  • the seat frame 14 also has a base plate provided in the seat 1A.
  • an inflator 13 and a pipe member 20 are interposed on the base end side (inflator side) of the airbag 11, an inflator 13 and a pipe member 20 are interposed.
  • the gas supply port 11a connected in this manner, and mounting pieces l ib and 11c (see FIG. 5 described later) located on both sides of the gas supply port 11a are provided.
  • Bolt holes 22 and 22 through which the mounting bolts 21a for fixing the airbag 11 and the retainer 12 are inserted are formed in each of the mounting pieces l ib and 11c.
  • the retainer 12 has bolt holes 25 (see FIG.
  • a perforated attachment portion 12a is provided, and a lower portion (inflator side) of the attachment portion 12c having a bolt hole similarly formed at a position corresponding to the bolt hole of the airbag attachment portion ib, 11c. Is provided.
  • a plurality (four in this embodiment) of the mounting bolts 21a are bolt holes 27 (described later) formed in the retainer mounting portion 12c in a state where the airbag 11 is folded and stored in the retainer 12. 4), the bolt hole 22 of the airbag mounting part l ib, 11c and the air bag mounting part 26 of the lid plate holding frame 46 described later at a position corresponding to the bolt hole 22 of the airbag mounting part l ib described above.
  • the bolt holes are drilled (not shown), and are fastened by nuts 15. Thereby, the airbag 11 is fixed to the retainer 12 in a folded state.
  • a plurality (two in this embodiment) of the mounting bolts 23 are passed through the bolt holes 25 of the retainer mounting portions 12a and 12b 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. 2, the pipe member 20 is composed of 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. A horizontal horizontal portion 20b bent in the vehicle width direction on the same horizontal plane, and bent upward from the horizontal horizontal portion 20b and rising substantially vertically, is covered with the gas supply port 1 la of the airbag 11, for example, made of metal. And a vertical end portion 20c connected by caulking and fixing with a clamp band.
  • 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 (Refer to Fig. 2) Force S The mounting member 31 is inserted into the fastening hole (not shown) provided in the side plate 14A through the bolt hole drilled in the mounting portion 31C. It is supposed to be fixed to. As a result, the inflator 13 is fixed to the side plate 14A via the attachment member 31.
  • FIG. 3 is a perspective view showing the overall structure of the retainer for storing and holding the inflator and the airbag as viewed from above
  • FIG. 4 is an exploded view showing the airbag apparatus of FIG. 1 and how to assemble and attach the retainer.
  • FIG. 5 is a cross-sectional view taken along line AA in FIG.
  • the retainer 12 has a retainer main body 28 formed by a storage frame 34 that stores the airbag 11 in a folded state and has a storage space that opens on the upper side of the rectangular cross section. is doing.
  • the retainer main body 28 has a cylindrical shape with a rectangular cross section, and includes a storage frame 34 having a bulging locking portion 35 having a horizontally long insertion port 36 and a back surface of the airbag 11 stored in a folded state.
  • the retainer 12 has an air bag 11 stored in the storage frame 34 by inserting and locking a horizontally long first tongue piece 40 formed by a U-shaped extraction hole 38 in the insertion port 36 from below.
  • the lid plate 30 is configured to block the opening on the front side, and the first tongue piece 40 of the lid plate 30 is inserted into the opening of the bulging locking portion 35 so as to be inserted into the opening.
  • a second tongue piece 42 that presses and holds the cover plate 30 against the retainer 28 is formed at the upper end, and an attachment portion M for attaching the horizontal horizontal portion 20b of the pipe member 20 is provided at the approximate center of the lower end portion (inflator side).
  • the lid plate 30 is formed of a rectangular flat plate made of a synthetic resin that can be elastically deformed, and the horizontally long first tongue piece 40 formed on the lower side (inflator side) is replaced with a U-shaped punching hole.
  • the front side of the airbag 11 is inserted into the insertion port 36 of the bulging lock 35 on the upper surface of the storage frame 34 in a state in which it is squeezed and deformed from 38 to the back side (rear side) from the other part.
  • the front and back surfaces of the airbag 11 are sandwiched between the back plate 33 and the cover plate 30.
  • the lid plate 30 is formed of a substantially flat plate-shaped member made of a resin! /,
  • the weight S can be reduced, and a laterally long slit SL in the width direction is formed on the upper portion.
  • the rigidity in the thickness direction (bending direction) of the cover plate 30 can be lowered to increase the flexibility in the stagnation direction, and the airbag can be deployed more smoothly.
  • the lid plate pressing 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 the above-mentioned bulging locking portion 35 is formed inside the notch recesses 42a and 42b formed inside these projection pieces 44a and 44b.
  • a second tongue piece 42 that is slightly shorter than the protruding pieces 44a and 44b inserted into the insertion port 36 is extended.
  • Two horizontal bent pieces 44c and 44d (not shown) bent horizontally to correspond to the height of the storage frame 34 are provided on both sides of the top plate 45 of the lid plate holding frame 46.
  • a pair of airbag attachment portions 26, 26 are attached to the lower ends of both horizontal bent pieces 44c, 44d.
  • the airbag 11 is folded in the procedure described later (see FIGS. 6 to 17), and is then placed in the retainer 12. Contain and re- The lower part of the airbag 11 is supported by horizontal bent pieces 44c and 44d which are the bottom walls of the main body 28, and the gas supply port 1 la, the mounting piece 1 lb and the mounting piece 1 lc of the airbag 11 are suspended downward.
  • the first tongue piece 40 of the lid plate 30 is inserted from the insertion port 36 by inserting the second tongue piece 42 of the lid plate presser frame 46 into the bulging locking portion 35 so as to overlap the upper surface of the piece 40.
  • the second tongue piece 42 is pressed and held in the bulge locking portion 35.
  • the airbag apparatus 10 is assembled, and the assembled airbag apparatus 10 includes the retainer main body 28 and left and right mounting portions 12a and 12b. It is attached to the upper part of the seat frame 14 by being fixed to the cross member 14B.
  • the airbag 11 When the inflator 13 is ignited, the airbag 11 is inflated and extends forward from the retainer 12. When the airbag 11 is pushed forward, the lid plate 30 is strongly pushed by the airbag 11. Since the airbag 11 is swung forward with the lower portion as a fulcrum, the airbag 11 can slide out of the retainer 12 with low resistance as it expands due to inflation, and can be smoothly deployed from the retainer 12.
  • the left mounting piece l ib of the airbag 11 is sandwiched between the airbag mounting portion 26 of the lid plate holding frame 46 and the mounting portion 12c of the retainer 12, and the bolt provided on the retainer mounting portion 12c is secured.
  • the bolt 21a is passed through the bolt hole 22 provided in the belt hole 27 and the mounting piece l ib of the airbag 11, and the bolt hole provided in the airbag mounting part 26 of the lid holding frame 46 is further passed.
  • a nut 15 is screwed onto the bolt 21a and fixed to the mounting portion 12c.
  • the mounting piece 11c of the airbag 11 is sandwiched between the mounting portion 12c of the retainer 12 by the airbag mounting portion 26 of the cover plate holding frame 46, and the two bolt holes and the airbag of the retainer mounting portion 12c. Pass the Bonole 21a through the Bonole hole 22 provided in the mounting piece lie of the cable 11, and further pass the bolt hole provided in the airbag mounting part 26 of the cover plate holding frame 46. A screw 21b is screwed and fixed to the mounting portion 12c. As a result, the storage of the air bag 11 in the retainer 12 is completed.
  • the lower end of the metal connection pipe 20 connected to the inflator 13 is connected to the upper end of the inflator 13 via the connection portion 20e fitted thereto, and the connection pipe 20 is bent upward.
  • the other end is connected to the gas supply port 11a by covering the gas supply port 11a of the airbag 11 with the metal clamp band B and the like.
  • the inflator 13 and the connecting pipe 20 connected thereto are covered with two semicircular mounting plates 31A and 31B of the mounting member 31 and fixed with the inflator 13 interposed therebetween.
  • the inflator 13 is interposed via the mounting member 31. Fixed to side plate 14A.
  • the connection terminal R drawn from the rear end of the inflator 13 is connected to the control circuit (not shown).
  • the airbag folding process includes a first folding process, a second folding process, and a storing process.
  • FIG. 6 is a front view showing a state in which the airbag 11 is deployed, in which (a) is upside down with respect to a state in which the airbag 11 is housed in the retainer, and (b) is a side view thereof.
  • FIG. 7 shows the first small folding step in the first folding step, in which (a) is an air that is folded vertically downward so that the upper end of the pushed-up folded portion is positioned inside to form a pushed-up small folded portion.
  • Fig. 8 is a side view of the bag
  • Fig. 8 is a second small folding step in the first folding step
  • (a) is a first double folding portion in which both sides of the airbag are folded inward.
  • (B) is a side view thereof
  • FIG. 9 is a third small folding step in the first folding step, and (a) is a reduction in both lateral widths on the pushed-up body portion side.
  • FIG. 5B is a front view of the airbag that is inclined inwardly and folded inward to form the second both-side small folds
  • the first folding step is a step of continuously folding the bag-shaped airbag 11 shown in FIGS. 6 (a) and 6 (b) so as to reduce its lateral dimension from the state before folding. 1st small It consists of a folding process, a second small folding process, and a third small folding process!
  • the air bag 11 before folding includes a push-up body portion 48 positioned on the inflow side of the pressure fluid from the inflator 13, and a pushed-up body portion pushed up to the side opposite to the inflow side by the inflow of the pressure fluid.
  • the pushed-up body portion 50 is wide! /, And is formed in a trapezoidal shape! /.
  • the airbag 11 in the deployed state has a pushed-up folded portion 52 in which the pushed-up body portion 50 side is folded vertically upward as a folding preparation step.
  • the first folding process is started from this state.
  • the upper end of the pushed-up folded portion 52 (see FIG. 6) folded vertically upward is set at a substantially intermediate position. Folded inward and downward, a pushed-up small fold 54 is formed at the upper end.
  • both sides of the airbag 11 are folded inward to form first double-side pushed-up small folding portions 55a and 55b.
  • the airbag is folded so that the lower ends of the first side pushed-up small folded portions 55a and 55b are positioned inside the pushed-up small folded portion 54.
  • the airbag 11 is folded inward so that both lateral widths of the raised body 50 side (lower side) are tapered.
  • the second double-side raised small folds 56a and 56b are formed, and the second double-side pushed small folds 56a and 56b are folded so as to be positioned above the pushed-up small folds 54.
  • FIGS. 10 to 15 show the second folding step
  • FIG. 10 is the first shift small folding step in the second folding step, where (a) is the first folding step.
  • FIG. 7 is a front view of an airbag in which a first raised pushed-up small folded portion is formed by folding a pushed-up small folded portion formed on the lower side of the airbag vertically downward in the third small folding step in FIG. b) is a side view thereof
  • FIG. 11 is a second shift small folding step in the second folding step, in which (a) is folded vertically downward while moving the first shift small folding portion upward.
  • FIG. 12 is a front view of the airbag formed with the second shift pushed-up small fold
  • FIG. 12B is a side view thereof
  • FIG. 12 is a third shift small fold process in the second fold process
  • (a) is the second shift pushed-up small fold
  • Fig. (B) is a side view thereof
  • Fig. 13 is a fourth shift small folding step in the second folding step
  • (a) is a push-up body portion from above the third shift pushed-up small folding portion. Is a front view of the airbag in which the gas supply port faces downward and a small folded part is formed, (b) is its side view, and FIG.
  • FIG. 14 is the second view.
  • a fifth shift small folding process in which (a) is a gas supply port by folding upwardly the push-up body part folded from the fourth shift pushed-up small folded part to the back side of the airbag.
  • Front view of an airbag with a fifth shift push-up small fold part facing upward (B) is a side view thereof
  • FIG. 15 is a storage preparation step that is the final step in the second folding step, and (a) is folded into a shape that can be stored inside the cover in the next storage step.
  • the front view of an airbag and (b) are the side views.
  • the second folding step is a step of continuously folding the bag-like airbag 11 whose dimension in the short direction is reduced in the first folding step so as to reduce the longitudinal direction thereof. It consists of the first shift small folding process, the fifth shift small folding process, and the final storage preparation process.
  • the airbag 11 in the third small folding step in the first folding step.
  • the first raised pushed-up small folding part 58 is formed by folding the pushed-up small folding part 52 formed on the lower side upward in the vertical direction.
  • the first shift small folding portion 58 is folded downward in the vertical direction while moving upward, and the second shift at the lower end.
  • a shifted push-up small fold 60 is formed.
  • the third shift pushed-up small A push-up body part 48 is folded from the upper side of the folding part 62 to the back side of the airbag 11 to form a fourth shifted pushed-up small folding part 64 at the upper end of the airbag 11 with the gas supply port 1 la facing downward.
  • the storage preparation step which is the final step in the second folding step, as shown in FIGS. 15 (a) and 15 (b)
  • the folding is performed.
  • the stored air bag 11 is turned upside down to be ready for storage.
  • FIG. 16 and FIG. 17 show the storage process
  • FIG. 16 shows the first storage process
  • (a) is folded into a shape that can be stored in the storage preparation process in the second folding process.
  • FIG. 17B is a side view of the airbag showing a state in which the air bag is stored inside the cover
  • FIG. 17 is the second storage process
  • FIG. FIG. 5B is a front view of the airbag showing a state in which it is moved to the front side to form a pushed-up large fold and completely stored in the cover
  • the storing step is a step for inserting and storing the bag-like airbag 11 whose longitudinal dimension is further reduced in the second folding step into the cover 66. Consists of a delivery process and a second storage process!
  • the airbag 11 folded into a shape that can be stored in the storing preparing step in the first folding step is opened.
  • the gas supply port 11a is housed in the cover 66 through the portion 66a, and the gas supply port 11a protrudes from the opening 66b on the opposite side.
  • the second shift pushed-up small fold portion 60 of the airbag 11 protrudes from the opening 66 a to the outside of the cover 66.
  • the pushed-up folded portion 52 of the folded airbag 11 is moved to the front side of the raised body portion 48 so as to face downward.
  • the airbag 11 is stored inside the cover 66 in a state of being completely hidden by forming the pushed-up large fold 68 at the top.
  • the push-up body 48 located on the pressure inflow side is pushed up when the pressure fluid swells, and then the push-up body 50 is pushed up to the side opposite to the pressure fluid inflow side by the push-up force.
  • the pushed-up body portion 50 is folded in a bellows shape, so that the airbag 11 can slide out of the retainer 12 with low resistance as it expands due to inflation. Use the force S to expand smoothly.
  • the plurality of pushed-up small folded portions 52, 54, 62, 64 force are included by the pushed-up large folded portion 68 folded in a folding manner larger than the small folded portion. Therefore, when the pushed-up body 50 is pushed up by the supply of the pressure fluid from the inflator 13 to the side opposite to the inflow side of the pressure fluid, the pushed-up large folding portion 68 is passed through. Thus, since the pressurized fluid is smoothly distributed to each of the plurality of pushed-up small folds 52, 54, 62, 64, the force S is used to smoothly expand the pushed-up body 50 from the retainer 12.
  • the longitudinal direction is reduced by the second folding process.
  • the bag-like airbag 11 continuously folded is inserted into the cover 66 and stored in the storing process.
  • the pressure fluid supplied from the inflator 13 flows into the pushed-up body portion 50 from the fifth shift push-up small fold portion 65 located on the pressure inflow side, and the airbag 11 is smoothly deployed. It can be stored inside the cover 66 in a folded form.
  • the remaining small folds and the fifth shifted push-up small fold 65 are the pushed-up large folds 68. Therefore, it is possible to adjust the longitudinal dimension and to easily assemble the limited space inside the cover 66.
  • 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 an automobile seat showing when the airbag is inflated. is there.
  • FIG. 2 is a perspective view showing the airbag device of FIG. 1 attached to a seat frame.
  • FIG. 3 is a perspective view showing an overall structure of a retainer that stores and holds an inflator and an airbag as viewed from above.
  • FIG. 4 is an exploded perspective view showing how to assemble and attach the airbag device and its retainer of FIG. 1.
  • FIG. 5 is a cross-sectional view taken along the line AA in FIG.
  • FIG. 6 is a front view of the airbag in a deployed state, with ( a ) being upside down from the state of being accommodated in the retainer, and (b) being a side view thereof.
  • FIG. 7 is a first small folding step in the first folding step, in which (a) is folded vertically downward so that the upper end of the pushed-up folded portion is positioned inside, and a pushed-up small folded portion is formed.
  • the front view of an airbag and (b) are the side views.
  • FIG. 8 is a second small folding step, in which (a) is a front view of an airbag in which both sides of the airbag are folded inward to form a first both-side small folded portion, and (b) is a side view thereof. .
  • FIG. 9 is a third small folding step, in which (a) is a front view of an airbag that is inclined inward so as to narrow both lateral widths on the pushed-up body portion side and is folded inward to form a second double-folded portion.
  • FIG. 2B is a side view thereof.
  • FIG. 10 is a first shift small folding process in the second folding process, in which (a) is a third small folding process in the first folding process, and a small lifted lift formed on the lower side of the airbag.
  • FIG. 5B is a front view of an airbag in which a folded portion is folded vertically downward to form a first shift pushed-up small folded portion, and FIG.
  • FIG. 11 is a second shift small folding process, in which (a) moves the first shift small folding section upward and folds it vertically downward to form a second shift pushed-up small folding section.
  • a front view of the airbag (b) is a side view thereof. 12]
  • the third shift small folding process (a) pulls up the slack portion of the lower end of the second shift pushed-up small fold portion in the vertical direction and folds it up on the back side of the push-up body portion on the back surface of the airbag
  • FIG. 7B is a front view of an airbag in which a third shift pushed-up small fold is formed above the second shift pushed-up small fold, and FIG.
  • a fourth shift small folding step in which (a) is a process in which the push-up body is folded from the upper side of the third shift pushed-up small fold to the back side of the airbag and the gas supply port faces downward.
  • 4 is a front view of an airbag in which a shift-up pushed-up small fold is formed, and (b) is a side view thereof.
  • Fifth shift small folding step (a) is the fourth shift pushed-up small folding part folded upward from the back side of the airbag and the gas supply port is raised The front view of the airbag which formed the 5th shift push-up small fold part which faces toward the direction, (b) is the side view.
  • FIG. 15 A storage preparation step as a final step, where (a) is a front view of the airbag folded into a shape that can be stored inside the cover in the next storage step, and (b) is a side view thereof. . 16] (a) is a front view of the airbag showing a state in which the airbag folded into a shape that can be stored in the storage preparation process in the second folding process is stored inside the cover. b) is a side view thereof.
  • a second storage step in which (a) is a front view of an airbag showing a state in which a pushed-up folded portion is moved downward to form a pushed-up large folded portion and is completely stored inside the cover. (B) is a side view thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

Le problème à résoudre dans le cadre de la présente invention consiste à améliorer la performance de déploiement d'un coussin gonflable. La solution proposée est l'appareil de coussin gonflable qui comprend un coussin gonflable (11) consistant en un sac obtenu en cousant un tissu de base, conçu pour se déployer de façon à arrêter la tête d'un occupant de siège ; un gonfleur qui peut générer un fluide sous pression qui doit être transmis au coussin gonflable (11) ; et un élément de recouvrement (66) pour emballer le coussin gonflable (11) dans une forme pliée de façon à entourer la périphérie de celui-ci, le coussin gonflable (11), lorsqu'il est emballé, étant positionné côté intérieur de l'élément de recouvrement (66) près du site d'entrée du fluide sous pression provenant du gonfleur, et le coussin gonflable (11) ayant une petite partie repliée (65) pour une poussée vers le haut créée en étant repliée au moins une fois et une partie d'objet à poussée vers le haut (50) obtenue en étant repliée en accordéon à l'intérieur de l'élément de recouvrement (66) lorsque le coussin est emballé, et, au moment du déploiement par gonflage, le coussin pouvant être poussé vers le haut vers le côté opposé au côté d'entrée du fluide sous pression par la petite partie repliée (65) pour une poussée vers le haut.
PCT/JP2007/069588 2006-11-29 2007-10-05 Appareil de coussin gonflable WO2008065805A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-322275 2006-11-29
JP2006322275A JP2008132945A (ja) 2006-11-29 2006-11-29 エアバッグ装置

Publications (1)

Publication Number Publication Date
WO2008065805A1 true WO2008065805A1 (fr) 2008-06-05

Family

ID=39467602

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/069588 WO2008065805A1 (fr) 2006-11-29 2007-10-05 Appareil de coussin gonflable

Country Status (2)

Country Link
JP (1) JP2008132945A (fr)
WO (1) WO2008065805A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5692178B2 (ja) * 2012-07-23 2015-04-01 トヨタ自動車株式会社 車両用サイドエアバッグ装置
JP6278025B2 (ja) * 2015-10-26 2018-02-14 トヨタ自動車株式会社 車両用サイドエアバッグ装置及びサイドエアバッグの折り畳み方法
JP6399004B2 (ja) * 2016-01-20 2018-10-03 トヨタ自動車株式会社 乗員保護装置
EP3581441B1 (fr) * 2018-06-13 2021-05-12 Autoliv Development AB Siège de véhicule

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07228213A (ja) * 1994-02-15 1995-08-29 Ashimori Ind Co Ltd エアバッグ装置
JPH1071915A (ja) * 1996-08-30 1998-03-17 Tachi S Co Ltd 車両用シートの頭部拘束方法およびエアバッグ内蔵シート
JPH10338097A (ja) * 1997-06-09 1998-12-22 Mazda Motor Corp 車両のサイドエアバッグ装置
JP2001151064A (ja) * 1999-11-22 2001-06-05 Toyoda Gosei Co Ltd 側突用エアバッグ装置
JP2004203272A (ja) * 2002-12-26 2004-07-22 Nippon Plast Co Ltd エアバッグ及びエアバッグ装置
JP2005193887A (ja) * 2003-11-20 2005-07-21 Delphi Technologies Inc 側部エアーバッグ及び該エアーバッグを折り畳む方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07228213A (ja) * 1994-02-15 1995-08-29 Ashimori Ind Co Ltd エアバッグ装置
JPH1071915A (ja) * 1996-08-30 1998-03-17 Tachi S Co Ltd 車両用シートの頭部拘束方法およびエアバッグ内蔵シート
JPH10338097A (ja) * 1997-06-09 1998-12-22 Mazda Motor Corp 車両のサイドエアバッグ装置
JP2001151064A (ja) * 1999-11-22 2001-06-05 Toyoda Gosei Co Ltd 側突用エアバッグ装置
JP2004203272A (ja) * 2002-12-26 2004-07-22 Nippon Plast Co Ltd エアバッグ及びエアバッグ装置
JP2005193887A (ja) * 2003-11-20 2005-07-21 Delphi Technologies Inc 側部エアーバッグ及び該エアーバッグを折り畳む方法

Also Published As

Publication number Publication date
JP2008132945A (ja) 2008-06-12

Similar Documents

Publication Publication Date Title
JP4907175B2 (ja) 座席シート装置
US8308188B2 (en) Passenger airbag apparatus
JP4239387B2 (ja) 車両用シート
US11833990B2 (en) Side airbag device, vehicle seat provided with same, and method for manufacturing side airbag device
JP2007230395A (ja) エアバッグ及びエアバッグ装置
JPWO2017010169A1 (ja) 乗員保護装置
WO1998006602A1 (fr) Coussin de securite gonflable
JP2011121511A (ja) 車両用シート
JP2008081002A (ja) エアバッグ及びエアバッグ装置
JPH11255062A (ja) 側面エアバッグを備えた車両のシ―ト
JP4371274B2 (ja) エアバッグ装置
WO2007099668A1 (fr) Coussin de sécurité gonflable et dispositif de coussin de sécurité gonflable
KR20200130446A (ko) 사이드 에어백 장치 및 이것을 구비한 차량용 시트
US7896388B2 (en) Seat airbag
WO2007088658A1 (fr) Dispositif de coussin de sécurité gonflable
WO2008065805A1 (fr) Appareil de coussin gonflable
JP4244863B2 (ja) 助手席用エアバッグ
JP2007276536A (ja) 助手席用エアバッグ装置
JP7404151B2 (ja) サイドエアバッグ装置
JP4525484B2 (ja) 自動二輪車用エアバッグ装置
JP2021175622A (ja) サイドエアバッグ装置
JP4900235B2 (ja) 自動二輪車用エアバッグ装置
JP6050796B2 (ja) 助手席用エアバッグの折り完了体の製造方法
JP3887167B2 (ja) 側面衝突用エアバッグ装置におけるエアバッグ折り畳み方法
WO2008038518A1 (fr) Dispositif de coussin de sécurité

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07829326

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07829326

Country of ref document: EP

Kind code of ref document: A1