WO2018012363A1 - Coussin de sécurité gonflable - Google Patents

Coussin de sécurité gonflable Download PDF

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Publication number
WO2018012363A1
WO2018012363A1 PCT/JP2017/024612 JP2017024612W WO2018012363A1 WO 2018012363 A1 WO2018012363 A1 WO 2018012363A1 JP 2017024612 W JP2017024612 W JP 2017024612W WO 2018012363 A1 WO2018012363 A1 WO 2018012363A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
airbag
tether
rear seat
inflated
Prior art date
Application number
PCT/JP2017/024612
Other languages
English (en)
Japanese (ja)
Inventor
安部　和宏
アン キエット グエン
Original Assignee
タカタ株式会社
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
Priority claimed from JP2016239722A external-priority patent/JP6885046B2/ja
Application filed by タカタ株式会社 filed Critical タカタ株式会社
Priority to US16/316,592 priority Critical patent/US10857965B2/en
Publication of WO2018012363A1 publication Critical patent/WO2018012363A1/fr

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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
    • B60R21/214—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in roof panels
    • 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
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/233—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other
    • 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
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2338—Tethers

Definitions

  • the present invention relates to an airbag for restraining an automobile occupant, and preferably to a rear seat airbag.
  • WO2016 / 064936A1 describes a rear-seat airbag that inflates so that the side view is U-shaped or inverted U-shaped.
  • WO2014 / 016432A1 describes an airbag for a rear seat that inflates so that the shape in a side view is a square shape.
  • An object of the present invention is to provide an airbag having a large passenger reception area when inflated.
  • an object of the present invention is to provide an airbag in which swinging of the inflated airbag to the rear is suppressed.
  • the airbag of the present invention is an airbag that expands forward of a passenger seated in a seat by gas from an inflator, and includes a first chamber that expands downward and rearward from a passenger compartment ceiling, and a lower portion of the first chamber And a second chamber that expands toward the front.
  • a connecting portion between the first chamber and the second chamber serves as a break point of the airbag when the airbag is inflated.
  • a first tether is provided between a connecting portion of the first chamber and the second chamber or a peripheral portion thereof, and a front portion of the first chamber.
  • a second tether is provided between the second chamber and a front portion of the first chamber.
  • the first tether spanned between the connecting portion of the first chamber and the second chamber or the peripheral portion thereof, and the front portion of the first chamber, and the second tether A chamber, a second tether spanned between the front portion of the first chamber, and a top chamber that expands along the passenger compartment ceiling, wherein the first chamber is a rear portion of the top chamber.
  • the upper ends of the first tether and the second tether are connected to the front portion of the top chamber.
  • the top chamber is fixed to the passenger compartment ceiling at least at two locations in the front-rear direction.
  • the apparatus further includes a third chamber provided between the top chamber and the first chamber.
  • a third tether is provided between a front portion of the top chamber and a connecting portion between the first chamber and the third chamber.
  • the gas flow path width of the connecting portion between the first chamber and the second chamber is narrow.
  • the rear seat airbag has a plurality of tethers extending radially downward from the passenger compartment ceiling in a state where the rear seat airbag is inflated, and each tether is connected to a predetermined portion of the rear seat airbag. ing.
  • an intersection angle between the rear surface of the first chamber and the horizontal plane is 25 ° or more and 65 ° or less in a state where the airbag is inflated.
  • the rear surface of the first chamber is a recess whose left-right direction center portion is retracted forward from the left and right.
  • the rear surface of the first chamber is a left-right center portion and a lower portion in the vertical direction is a convex portion protruding rearward from the left and right.
  • a fourth tether is provided between an intermediate portion in the front-rear direction of the second chamber and an upper portion of the first chamber or a front portion of the upper portion.
  • the left and right width of the first chamber is larger than the left and right width of the second chamber.
  • the airbag of the present invention is an airbag that inflates in front of an occupant seated in a seat by gas from an inflator, and includes a first chamber that inflates downward and rearward from a passenger compartment ceiling, and the first chamber A second chamber is connected to the lower part and expands downward, and a third chamber is connected to the lower part of the second chamber and expands forward.
  • the first and second chambers have a first tether spanned between a connecting portion of the first chamber and the second chamber or a peripheral portion thereof and a front portion of the first chamber.
  • it includes a second tether that is spanned between the third chamber and a front portion of the first chamber.
  • the second tether is connected to a middle portion of the expanded third chamber in the front-rear direction, and a front portion of the third chamber and a connecting portion between the second chamber and the third chamber A third tether is provided between the two.
  • the front portion of the third chamber is positioned higher than the middle portion in the front-rear direction of the third chamber to which the second tether is connected.
  • the airbag has a top chamber that inflates along a vehicle compartment ceiling, the first chamber is connected to a rear portion of the top chamber, and the first tether and the second tether.
  • the upper end of the tether is continuous with the front part of the top chamber.
  • the gas flow path width of the connecting portion between the first chamber and the second chamber and the connecting portion between the second chamber and the third chamber is narrow.
  • the gas flow path width of the connecting portion between the top chamber and the first chamber is narrow.
  • the third chamber expands so that the front part contacts the rear surface of the front seat.
  • the connecting portion between the first chamber and the second chamber is located below the occupant's head.
  • the rear surface of at least one of the first chamber and the second chamber is a concave portion in which the center portion in the left-right direction recedes forward from the left and right.
  • the airbag of the present invention has a first chamber that expands downward and rearward from the vehicle interior ceiling, and a second chamber that expands forward from the lower portion of the first chamber.
  • the first chamber restrains the vicinity of the occupant's head, and the first and second chambers restrain the upper body such as the occupant's chest.
  • This air bag has a large receiving area because the receiving surface for receiving the occupant in the event of a vehicle collision is constituted by the first chamber.
  • the front portion of the airbag hits the front seat or the like, so that the forward movement of the inflated airbag is suppressed.
  • FIG. 3 is a sectional view taken along line III-III in FIG. 1.
  • FIG. 4 is a sectional view taken along line IV-IV in FIG. 1.
  • FIG. 6 is a sectional view taken along line VI-VI in FIG. 5 when the rear seat airbag is inflated. It is a side view at the time of expansion
  • front and rear, and top and bottom coincide with front and rear and top and bottom of an automobile equipped with a rear seat airbag device.
  • FIG. 1 to 6 show a rear seat airbag 1 according to a first embodiment of the present invention.
  • the rear seat airbag 1 is inflated downward or downward and rearward from the vehicle ceiling portion 4 between the front seat 2 and the rear seat 3 of the automobile to restrain the occupant M of the rear seat 3. is there.
  • the rear seat airbag 1 includes a first chamber 11 that expands downward and rearward from the ceiling portion 4, a second chamber 12 that continues to the lower portion of the first chamber 11 and expands downward, A third chamber 13 is connected to the lower portion of the second chamber 12 and expands forward.
  • the rear seat airbag 1 further includes a top chamber 10 that expands along the ceiling portion 4.
  • a first chamber 11 is connected to the rear portion of the top chamber 10.
  • An inflator 14 is installed in the top chamber 10, and the rear seat airbag 1 is inflated by the gas from the inflator 14.
  • the rear seat airbag 1 includes first and second tethers 21 and 22 that connect the front portion of the top chamber 10 and a predetermined portion of the rear seat airbag 1.
  • the first tether 21 is disposed on the front side of the first chamber 11, and the second tether 22 is disposed on the front side of the first and second chambers 11 and 12.
  • the upper ends of the tethers 21 and 22 are sewn to the front portion of the top chamber 10.
  • a lower end (rear end) of the first tether 21 is sewn to a connecting portion (boundary portion) 15 between the first chamber 11 and the second chamber 12.
  • the lower end of the second tether 22 is sewn to the middle part of the third chamber 13 in the front-rear direction (in this embodiment, the vicinity of the middle of the third chamber 13 in the front-rear direction).
  • the rear seat airbag 1 further includes a third tether 23 that is bridged between the front portion of the third chamber 13 and the connecting portion 16 between the second chamber 12 and the third chamber 13.
  • the tip of the third tether 23 is sewn to the front portion of the third chamber 13.
  • the rear end of the third tether 23 is sewn to a connecting portion (boundary portion) 16 between the second chamber 12 and the third chamber 13.
  • the third tether 23 is provided on the upper surface side of the third chamber 13.
  • the connecting portion (boundary portion) 15 between the first chamber 11 and the second chamber 12 is located near the front of the chest or upper abdomen of the rear seat occupant M.
  • the connecting portion (boundary portion) 16 between the second chamber 12 and the third chamber 13 is located near the front of the trunk of the rear seat occupant M.
  • the third chamber 13 expands along the upper surface of the thigh of the rear seat occupant M.
  • the rear seat airbag 1 is manufactured by stitching the front panel 31 and the rear panel 32 as shown in FIGS.
  • FIG. 5 is a plan view of a state in which the rear seat airbag 1 before being inflated is flattened
  • FIG. 6 is a sectional view taken along line VI-VI in FIG. 5 in a state in which the rear seat airbag 1 is inflated.
  • Yes. 3 and 4 are sectional views taken along lines III-III and IV-IV in FIG.
  • the front panel 31 and the rear panel 32 are made of a substantially rectangular base cloth that is long in one direction, and the peripheral portions thereof are stitched together by a suture thread 33.
  • the front panel 31 and the rear panel 32 are also stitched by annular stitches 41 to 49, 51 to 56, 72 to 75 and linear stitches 61 to 71, 76, 77 described below.
  • annular stitches 41, 42, 43 are spaced apart in the width direction of the rear seat airbag 1. Is provided. At the boundary 15 between the first chamber 11 and the second chamber 12, a plurality (three in this embodiment) of annular stitches 44, 45, 46 are spaced in the width direction of the rear seat airbag 1. Opened. At the boundary 16 between the second chamber 12 and the third chamber 13, a plurality of (three in this embodiment) annular stitches 47, 48, 49 are spaced apart in the width direction of the rear seat airbag 1. Opened. Near the tip of the third chamber 13, a plurality (three in this embodiment) of annular stitches 51, 52, 53 are provided at intervals in the width direction of the rear seat airbag 1.
  • An annular seam 54 is provided between the annular seams 47 and 51.
  • An annular seam 56 is provided between the annular seams 49 and 53.
  • An annular seam 55 is provided close to the annular seam 48 and closer to the annular seam 52 than the annular seam 48.
  • Linear stitches 61, 62, 63, 64 are provided so as to sequentially connect the annular stitches 41, 44, 47, 54, 51.
  • Linear stitches 65 and 66 are provided so as to sequentially connect the annular stitches 42, 45 and 48, and linear stitches 67 are provided so as to connect the annular stitches 55 and 52.
  • Linear stitches 68, 69, 70, 71 are provided so as to sequentially connect the annular stitches 43, 46, 49, 56, 53.
  • These straight seams 61 to 64, 65 to 67, and 68 to 71 are parallel to each other and extend in the longitudinal direction of the airbag 1 for the rear seat.
  • annular stitches 72 and 73 are provided on the first chamber 11 side at intervals in the width direction of the rear seat airbag 1.
  • annular seams 74 and 75 are provided in the vicinity of the front end of the top chamber 10 at intervals in the width direction of the rear seat airbag 1.
  • a straight seam 76 is provided so as to connect the annular seams 72 and 74.
  • a straight seam 77 is provided so as to connect the annular seams 73 and 75.
  • the straight seams 76 and 77 are parallel to each other and extend in the longitudinal direction of the rear seat airbag 1.
  • the inflator 14 is disposed between the straight stitches 76 and 77.
  • the inflator 14 is a cylinder type, and a stud bolt 14a is projected from the side surface of the inflator 14 as shown in FIG.
  • the stud bolt 14a protrudes out of the rear seat airbag 1 through a bolt insertion hole provided in the rear panel 32, and is fixed to the case of the rear seat airbag device.
  • the inflator 14 is disposed so that the gas ejection port is on the first chamber 11 side.
  • the inflation thickness of the rear seat airbag 1 is regulated by the annular stitches 41 to 49, 51 to 56, 72 to 75 and the straight stitches 61 to 71, 76, 77.
  • the gas flow path width is narrowed at the annular seams 41 to 43, that is, at the connecting portion (boundary portion) 17 between the top chamber 10 and the first chamber 11, and the rear
  • the connecting portion (boundary portion) 17 between the top chamber 10 and the first chamber 11 and the rear is easily bent at this portion.
  • the connecting portion (boundary portion) between the first chamber 11 and the second chamber 12 is used. 15 and the connecting portion (boundary portion) 16 between the second chamber 12 and the third chamber 13 make the rear seat airbag 1 easily bent.
  • the upper ends of the first and second tethers 21 and 22 are sewn into the annular stitches 74 and 75.
  • the lower end (rear end) of the first tether 21 is sewn into the annular stitches 44 and 46 as shown in FIG. Reference numeral 21a in FIG. 6 indicates this suture thread.
  • the lower end of the second tether 22 is sewn into the annular stitches 54 and 56.
  • the front end of the third tether 23 is sewn into the annular stitches 51 and 53, and the rear end is sewn into the annular stitches 47 and 49.
  • the rear-seat airbag 1 configured in this manner is folded, disposed in the ceiling portion 4, and covered with a roof garnish.
  • the inflator 14 is insufflated and the rear seat airbag 1 is inflated.
  • the top chamber 10 expands along the ceiling portion 4, and the first chamber 11 expands obliquely downward and rearward from the rear end of the top chamber 10.
  • the second chamber 12 expands downward from the lower end of the first chamber 11, and the third chamber 13 extends forward from the lower end of the second chamber 12 along the upper surface of the thigh of the rear seat occupant M. Inflate.
  • the front end of the third chamber 13 contacts the rear surface of the front seat 2.
  • the connecting portion 15 between the first chamber 11 and the second chamber 12 When the connecting portion 15 between the first chamber 11 and the second chamber 12 is pulled forward and upward by the first tether 21, the first chamber 11 and the second chamber 12 expand to a position along the front surface of the rear seat occupant M. To do. At this time, the first chamber 11 is inclined so as to be forward as it goes upward, and the second chamber 12 is slightly inclined so as to be forward as it is substantially vertically downward or downward.
  • the connecting portion 15 between the first chamber 11 and the second chamber 12 is positioned lower than the head of the occupant M.
  • the chest-abdomen of the rear seat occupant M is restrained by the inflated second chamber 12 and the head is restrained by the first chamber 11. Since the first chamber 11 is wide and substantially flat in front of the head, and the second chamber 12 is wide and substantially flat in front of the chest or torso, the receiving area for receiving the occupant M is large.
  • the front end of the third chamber 13 of the rear seat airbag 1 inflated in this way comes into contact with the rear surface of the front seat 2 so that the forward movement of the first chamber 11 and the second chamber 12 is suppressed.
  • the length of the third tether 23 is such that the front end of the third chamber 13 is higher than the middle part of the third chamber 13 in the front-rear direction (the connecting portion of the second tether 22). Is set. Therefore, even if the position of the front seat 2 is located at the foremost part of the seat adjuster or the rearmost part of the seat adjuster, the front end of the third chamber 13 tends to come into contact with the rear surface of the front seat 2.
  • the rear seat airbag 1 shown in FIGS. 1 to 6 is configured to bend at the connecting portion between the chambers 10, 11, 12, and 13 when inflated.
  • the rear seat airbag 1 ′ shown in FIG. As described above, the side view shape may be curved in a C shape without being bent at the time of expansion. 7 denote the same parts as those in FIG.
  • the present invention may have a configuration other than that illustrated.
  • the third tether 23 is provided in the rear seat airbag 1, 1 ′, but the third tether 23 may be omitted.
  • the top chamber 10 may be omitted, and the gas ejected from the inflator 14 may be directly introduced into the first chamber 11.
  • the upper ends of the first and second tethers 21 and 22 may be connected to a vehicle member ahead of the rear seat airbag, for example, a case of a rear seat airbag device.
  • the center in the left-right direction of the rear surface of at least one of the first chamber 11 and the second chamber 12 may be recessed forward of the vehicle as compared to the left and right sides.
  • the rear seat occupant is received substantially perpendicularly to the left half side or the right half side of the rear surface of the first chamber or the second chamber in the case of an oblique collision or an offset collision.
  • FIGSecond Embodiment 8 and 9 show a rear seat airbag 101 according to a second embodiment of the present invention.
  • the rear seat airbag 101 is inflated downward or downward and rearward from the vehicle ceiling 104 between the front seat 102 and the rear seat 103 of the automobile to restrain the occupant M of the rear seat 103. is there.
  • the rear seat airbag 101 includes a first chamber 111 that expands downward and rearward from the ceiling 104, and a second chamber 112 that is connected to the lower portion of the first chamber 111 and expands forward. .
  • the rear seat airbag 101 further includes a top chamber 110 that expands along the ceiling 104.
  • the upper part of the first chamber 111 is connected to the rear part of the top chamber 110.
  • An inflator 114 is installed in the top chamber 110, and the rear seat airbag 101 is inflated by the gas from the inflator 114.
  • the top chamber 110 is attached and fixed to the ceiling 104 at at least two places in the vehicle front-rear direction.
  • the rear seat airbag 101 includes first and second tethers 121 and 122 that connect the front portion of the top chamber 110 and a predetermined portion of the rear seat airbag 101.
  • the first tether 121 is disposed on the front side of the first chamber 111
  • the second tether 122 is disposed on the front side of the first chamber 111 and on the upper side of the second chamber 112.
  • the upper ends of the tethers 121 and 122 are sewn to the front portion of the top chamber 110.
  • the lower end (rear end) of the first tether 121 is sewn to the connecting portion (boundary portion) 115 between the first chamber 111 and the second chamber 112 or its peripheral portion.
  • the lower end of the second tether 122 is sewn to the front portion of the second chamber 112.
  • the rear seat airbag 101 is manufactured by stitching the front panel and the rear panel in the same manner as the rear seat airbag 1 according to the first embodiment.
  • the sewing method of the first and second tethers 121 and 122 is the same as that in the first embodiment.
  • an annular seam is provided so that the rear seat airbag 1 is easily bent at the connecting portion (boundary portion) 115 between the first chamber 111 and the second chamber 112.
  • the gas flow path width is narrow.
  • an annular seam is provided so that the rear seat airbag 1 is easily bent at the connecting portion (boundary portion) 117 between the top chamber 110 and the first chamber 111, and the gas flow path width is reduced. Yes.
  • the rear-seat airbag 101 configured in this manner is folded, disposed in the ceiling portion 104, and covered with a roof garnish.
  • the inflator 114 is operated to eject gas, and the rear seat airbag 101 is inflated.
  • the top chamber 110 expands along the ceiling 104, and the first chamber 111 expands obliquely downward and rearward from the rear end of the top chamber 110.
  • the second chamber 112 expands above the thigh of the rear seat occupant M from the lower end of the first chamber 111 toward the front.
  • the front end of the second chamber 112 contacts the rear surface of the front seat 102.
  • the first tether 121 and the second tether 122 expand radially from the ceiling 104 (the front of the top chamber 110) downward (downward, forward, downward, and backward). Tighten.
  • the first tether 121 pulls the connecting portion 115 between the first chamber 111 and the second chamber 112 forward and upward, and the second tether 122 pulls the front portion of the second chamber 112 upward, whereby the first chamber 111 and the second chamber 112 expand in front of the rear seat occupant M.
  • the first chamber 111 is inclined so as to be forward in the upward direction
  • the second chamber 112 is slightly inclined so as to be substantially horizontal or downward in the forward direction.
  • the connecting portion 115 between the first chamber 111 and the second chamber 112 is positioned lower than the head of the occupant M.
  • the head of the seat occupant M is restrained by the first chamber 111.
  • Additional tethers other than the tethers 121 and 122 may be further provided in a region surrounded by the top chamber 110, the first chamber 111, the second chamber 112, and the tether 122 in a side view of the inflated rear seat airbag 101. .
  • the additional tethers are preferably provided so as to expand radially downward from the ceiling 104 together with the tethers 121 and 122.
  • the locations where the upper ends of the tethers 121 and 122 are sewn may be the same or different.
  • a third chamber 113 may be added between the top chamber 110 and the first chamber 111.
  • the third chamber 113 expands downward or downward and rearward from the ceiling portion 104, the upper portion of the third chamber 113 is connected to the rear portion of the top chamber 110, and the lower portion of the third chamber 113 is connected to the upper portion of the first chamber 111. It will be a series.
  • a third tether 123 that connects the connecting portion (boundary portion) 118 between the third chamber 113 and the first chamber 111 and the front portion of the top chamber 110.
  • the inclination angle ⁇ is preferably about 25 ° to 65 °, particularly about 40 ° to 50 °.
  • the rear seat airbags 1 and 101 sew the peripheral portions of the front panel and the rear panel made of a substantially rectangular base fabric, and connect portions (boundary portions) of the respective chambers.
  • each chamber is composed of different panels, and the peripheral edges of the communication holes H are sewn and connected to each other. You may make it communicate inside.
  • the left and right side portions of the second chamber 112 of the rear seat airbag 101 according to the second embodiment are omitted, and the left and right width of the entire second chamber 112 is set to the left and right width of the first chamber 111. It may be smaller. In other words, the left end and the right end of the first chamber (upper chamber) 111 may protrude to the left and right sides of the left end and the right end of the second chamber (lower chamber) 112. For example, the lateral width of the second chamber 112 is made smaller than the shoulder width of the rear seat occupant M.
  • the left-right width of the first chamber 111 is larger than the left-right width of the second chamber 112 and has a larger occupant receiving area, and restrains the occupant head.
  • the left and right widths of the lower chamber composed of the second chamber 12 and the third chamber 13 of the rear seat airbag 1 according to the first embodiment are set to the upper portion composed of the first chamber 11. You may make it smaller than the left-right width of a chamber.
  • the fourth portion that connects the connecting portion between the third chamber 113 and the top chamber 110 and the middle portion of the second chamber 112 in the front-rear direction (for example, the vicinity of the middle of the second chamber 112 in the front-rear direction).
  • a tether 124 may be further provided.
  • the upper ends (front ends) of the first tether 121, the second tether 122, and the third tether 123 may be coupled to the ceiling portion 104 in front of the top chamber 110, for example, a vehicle body member or an airbag case.
  • the middle portion in the front-rear direction does not bend downward in the second chamber 112 and expands and expands almost straight.
  • the upper end of the fourth tether 124 is connected to the same location as the upper ends of the first tether 121, the second tether 122, and the third tether 123, and the four tethers radiate downward from the ceiling portion 104. You may make it extend.
  • FIG. 17 to 19 show a rear seat airbag 201 according to a third embodiment of the present invention.
  • the rear-seat airbag 201 is inflated downward or downward and rearward from the vehicle ceiling 204 between the front seat 202 and the rear seat 203 of the automobile to restrain the occupant M of the rear seat 203. is there.
  • the rear seat airbag 201 includes a first chamber 211 that expands downward and rearward from the ceiling portion 204, and a second chamber 212 that continues to the lower portion of the first chamber 211 and expands forward. .
  • the rear seat airbag 201 further includes a top chamber 210 that inflates along the ceiling portion 204.
  • the upper portion of the first chamber 211 is connected to the rear portion of the top chamber 210.
  • An inflator 214 is installed in the top chamber 210, and the rear seat airbag 201 is inflated by the gas from the inflator 214.
  • the top chamber 210 is attached and fixed to the ceiling portion 204 at at least two locations in the vehicle longitudinal direction.
  • the rear seat airbag 201 includes a first tether 221, a second tether 222, and a third tether 223 that connect the ceiling portion 204 ahead of the top chamber 210 and a predetermined portion of the rear seat airbag 201. Yes.
  • illustration of the tethers 221, 222, and 223 is omitted.
  • the upper ends of the tethers 221, 222, and 223 are connected to a ceiling portion 204 in front of the top chamber 210, for example, a vehicle body member or an airbag case.
  • the lower end (rear end) of the first tether 221 is sewn to the connecting portion (boundary portion) 215 between the first chamber 211 and the second chamber 212 or its peripheral portion.
  • the lower end of the second tether 222 is sewn to the front portion (front end portion) of the second chamber 212.
  • the lower end (rear end) of the third tether 223 is sewn to the connecting portion (boundary portion) 217 between the first chamber 211 and the top chamber 210 or its peripheral portion.
  • a recess 281 that is recessed toward the front of the vehicle compared to the left and right sides is provided at the center in the left-right direction on the rear surface of the first chamber 211 and slightly above the center in the up-down direction.
  • a convex portion 282 is provided at the lower portion of the rear surface of the first chamber 211 and at the center in the left-right direction so as to protrude and protrude in the rear of the vehicle in comparison with the left and right sides.
  • FIG. 19 is a plan view showing a state in which the rear seat airbag 201 before being inflated is flattened.
  • the rear seat airbag 201 is manufactured by stitching a front panel 231 and a rear panel (not shown).
  • the front panel 231 and the rear panel are made of a substantially rectangular base cloth that is long in one direction, and their peripheral edges are stitched together by stitches 268.
  • the front panel 231 and the rear panel are also stitched by annular stitches 241 to 248 and linear stitches 261 to 267 which will be described below.
  • a plurality of (three in this embodiment) annular stitches 241, 242, and 243 are spaced apart in the width direction of the rear seat airbag 201 at the boundary 217 between the top chamber 210 and the first chamber 211. Is provided.
  • annular stitches 244, 245, 246 are spaced apart in the width direction of the rear seat airbag 201. Opened.
  • annular seams 247 and 248 are provided at an interval.
  • a slit S extending in the longitudinal direction of the rear seat airbag 201 is formed inside the annular seam 247.
  • a linear stitch 261 is provided so as to connect the annular stitch 241 and the annular stitch 244.
  • a straight stitch 262 extending in the longitudinal direction of the rear seat airbag 201 is provided so as to connect the annular stitch 244 and the stitch 268 on the front end side of the rear seat airbag 201.
  • a linear stitch 266 is provided so as to connect the annular stitch 243 and the annular stitch 246.
  • a straight stitch 267 extending in the longitudinal direction of the rear seat airbag 201 is provided so as to connect the annular stitch 246 and the stitch 268 on the front end side of the rear seat airbag 201.
  • linear seams 263, 264 are provided so as to sequentially connect the annular seams 242, 247, 248.
  • a straight seam 265 extending in the longitudinal direction of the rear seat airbag 201 is provided so as to connect the annular stitch 248 and the stitch 268 on the front end side of the rear seat airbag 201.
  • No seam is provided between the annular seam 245 and the annular seam 248.
  • a region surrounded by the annular stitches 244, 245, 246, and 248 becomes the above-described convex portion 282 when the rear seat airbag 201 is inflated.
  • the portion where the slit S is formed becomes the above-described recess 281 when the rear seat airbag 201 is inflated.
  • the end of the top chamber 210 in the longitudinal direction has a narrow width and is an inflator deployment chamber 284 in which the inflator 214 is deployed.
  • the inflator 214 is a cylinder type.
  • the inflator 214 is disposed so that the gas ejection port is on the rear side.
  • the lower end (rear end) of the third tether 223 is sewn inside the annular stitches 241, 242, and 243.
  • the lower end (rear end) of the first tether 221 is sewn inside the annular stitches 244, 245, and 246.
  • the lower end of the second tether 222 is sewn to the front end portion of the front panel 231.
  • the rear seat airbag 201 configured in this manner is folded, placed in the ceiling portion 204, and covered with a roof garnish.
  • the inflator 214 operates to inject gas, and the rear seat airbag 201 is inflated.
  • the top chamber 210 expands along the ceiling portion 204, and the first chamber 211 expands obliquely downward and rearward from the rear end of the top chamber 10.
  • the second chamber 212 expands from the lower end of the first chamber 211 toward the front.
  • the first chamber 211 In the inflated state, the first chamber 211 is widely deployed in front of the upper body of the occupant M.
  • the jaw portion of the occupant M is restrained by a convex portion 282 formed at the lower portion of the rear surface of the first chamber 211 and at the center in the left-right direction.
  • the forehead portion of the occupant M is restrained by the concave portion 281 formed on the rear surface of the first chamber 211 and above the convex portion 282.
  • the recess 281 is formed by the slit S, but a circular opening may be provided in the annular seam 247 to form the recess 281 when the inflation is completed.
  • the rear seat airbags 1, 101, 201 have been described.
  • the rear seat airbags 1, 101, 201 may be configured to be inflated in front of the occupant, and can be applied to a driver seat, a passenger seat, and other seats.

Landscapes

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

Abstract

L'invention concerne un coussin de sécurité gonflable qui présente une grande zone de réception d'occupant lorsqu'il est déployé. Le coussin gonflable (1) comprend : une chambre supérieure (10), qui s'étend le long d'une partie de plafond (4) ; une première chambre (11), qui s'étend vers le bas et vers l'arrière à partir de la partie arrière de la chambre supérieure (10) ; une deuxième chambre (12) continue à partir de la partie inférieure de la première chambre (11), la deuxième chambre (5) s'étendant vers le bas ; une troisième chambre (13) continue à partir de la partie inférieure de la deuxième chambre (12), la troisième chambre (13) s'étendant vers l'avant. La première chambre étendue (11) retient la tête d'un occupant et la deuxième chambre (12) retient la poitrine jusqu'au tronc.
PCT/JP2017/024612 2016-07-12 2017-07-05 Coussin de sécurité gonflable WO2018012363A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/316,592 US10857965B2 (en) 2016-07-12 2017-07-05 Air bag

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2016137693 2016-07-12
JP2016-137693 2016-07-12
JP2016166949 2016-08-29
JP2016-166949 2016-08-29
JP2016239722A JP6885046B2 (ja) 2016-07-12 2016-12-09 エアバッグ
JP2016-239722 2016-12-09

Publications (1)

Publication Number Publication Date
WO2018012363A1 true WO2018012363A1 (fr) 2018-01-18

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WO (1) WO2018012363A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10279770B2 (en) * 2017-02-01 2019-05-07 Ford Global Technologies, Llc Vehicle impact absorbing system including chest load reduction
WO2019209442A1 (fr) * 2018-04-24 2019-10-31 Trw Vehicle Safety Systems Inc. Dispositif de retenue d'occupant monté sur toit
CN110682888A (zh) * 2018-07-05 2020-01-14 奥托立夫开发公司 行人保护气囊装置
JP2021054100A (ja) * 2019-09-26 2021-04-08 豊田合成株式会社 乗員保護装置
JP2021054099A (ja) * 2019-09-26 2021-04-08 豊田合成株式会社 乗員保護装置
CN115384366A (zh) * 2022-08-03 2022-11-25 好孩子儿童用品有限公司 一种儿童汽车安全座椅及安全气囊包
WO2024127914A1 (fr) * 2022-12-14 2024-06-20 オートリブ ディベロップメント エービー Dispositif de coussin de sécurité gonfable

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002508273A (ja) * 1997-12-15 2002-03-19 ペトリ・アーゲー エアーバッグモジュール用のガスバッグ
JP2002534321A (ja) * 1999-01-12 2002-10-15 オートリブ デベロップメント アクテボラゲット エアバッグとエアバッグの展開方法
JP2006142964A (ja) * 2004-11-18 2006-06-08 Takata Petri Ag 頭部保護エアバッグ及び頭部保護エアバッグ装置
WO2008095615A1 (fr) * 2007-02-08 2008-08-14 Autoliv Development Ab Airbag, module airbag et véhicule automobile
JP2008284904A (ja) * 2007-05-15 2008-11-27 Takata Corp エアバッグ及びそれを備えたエアバッグ装置
US20100133797A1 (en) * 2008-12-02 2010-06-03 Hyunnai Motor Company Airbag Apparatus for Vehicle
US20120133114A1 (en) * 2010-11-29 2012-05-31 Hyundai Motor Company Internal airbag device
JP2013082418A (ja) * 2011-10-05 2013-05-09 Hyundai Motor Co Ltd 車両のルーフエアバッグ装置
JP2015522482A (ja) * 2012-07-27 2015-08-06 タカタ アーゲー 乗員拘束システムのエアバッグ装置を有する車両
JP2016030545A (ja) * 2014-07-30 2016-03-07 マツダ株式会社 車両の後席エアバッグ装置
US9308883B1 (en) * 2015-03-16 2016-04-12 Autoliv Asp, Inc. Low-volume seat-mounted airbag with knee restraint

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002508273A (ja) * 1997-12-15 2002-03-19 ペトリ・アーゲー エアーバッグモジュール用のガスバッグ
JP2002534321A (ja) * 1999-01-12 2002-10-15 オートリブ デベロップメント アクテボラゲット エアバッグとエアバッグの展開方法
JP2006142964A (ja) * 2004-11-18 2006-06-08 Takata Petri Ag 頭部保護エアバッグ及び頭部保護エアバッグ装置
WO2008095615A1 (fr) * 2007-02-08 2008-08-14 Autoliv Development Ab Airbag, module airbag et véhicule automobile
JP2008284904A (ja) * 2007-05-15 2008-11-27 Takata Corp エアバッグ及びそれを備えたエアバッグ装置
US20100133797A1 (en) * 2008-12-02 2010-06-03 Hyunnai Motor Company Airbag Apparatus for Vehicle
US20120133114A1 (en) * 2010-11-29 2012-05-31 Hyundai Motor Company Internal airbag device
JP2013082418A (ja) * 2011-10-05 2013-05-09 Hyundai Motor Co Ltd 車両のルーフエアバッグ装置
JP2015522482A (ja) * 2012-07-27 2015-08-06 タカタ アーゲー 乗員拘束システムのエアバッグ装置を有する車両
JP2016030545A (ja) * 2014-07-30 2016-03-07 マツダ株式会社 車両の後席エアバッグ装置
US9308883B1 (en) * 2015-03-16 2016-04-12 Autoliv Asp, Inc. Low-volume seat-mounted airbag with knee restraint

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10279770B2 (en) * 2017-02-01 2019-05-07 Ford Global Technologies, Llc Vehicle impact absorbing system including chest load reduction
WO2019209442A1 (fr) * 2018-04-24 2019-10-31 Trw Vehicle Safety Systems Inc. Dispositif de retenue d'occupant monté sur toit
US20210101559A1 (en) * 2018-04-24 2021-04-08 ZF Passive Safety Systems US Inc. Roof-mounted occupant restraint system
US11938888B2 (en) * 2018-04-24 2024-03-26 ZF Passive Safety Systems US Inc. Roof-mounted occupant restraint system
CN110682888A (zh) * 2018-07-05 2020-01-14 奥托立夫开发公司 行人保护气囊装置
JP2021054100A (ja) * 2019-09-26 2021-04-08 豊田合成株式会社 乗員保護装置
JP2021054099A (ja) * 2019-09-26 2021-04-08 豊田合成株式会社 乗員保護装置
JP7223333B2 (ja) 2019-09-26 2023-02-16 豊田合成株式会社 乗員保護装置
JP7223334B2 (ja) 2019-09-26 2023-02-16 豊田合成株式会社 乗員保護装置
CN115384366A (zh) * 2022-08-03 2022-11-25 好孩子儿童用品有限公司 一种儿童汽车安全座椅及安全气囊包
CN115384366B (zh) * 2022-08-03 2024-06-04 好孩子儿童用品有限公司 一种儿童汽车安全座椅及安全气囊包
WO2024127914A1 (fr) * 2022-12-14 2024-06-20 オートリブ ディベロップメント エービー Dispositif de coussin de sécurité gonfable

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