WO2013011900A1 - Airbag device - Google Patents

Airbag device Download PDF

Info

Publication number
WO2013011900A1
WO2013011900A1 PCT/JP2012/067728 JP2012067728W WO2013011900A1 WO 2013011900 A1 WO2013011900 A1 WO 2013011900A1 JP 2012067728 W JP2012067728 W JP 2012067728W WO 2013011900 A1 WO2013011900 A1 WO 2013011900A1
Authority
WO
WIPO (PCT)
Prior art keywords
airbag
cloth
fixed
fixed cloth
sewing
Prior art date
Application number
PCT/JP2012/067728
Other languages
French (fr)
Japanese (ja)
Inventor
雄太 南
美和 松岡
了悟 本田
Original Assignee
芦森工業株式会社
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 JP2011158237A external-priority patent/JP2013023028A/en
Priority claimed from JP2011158239A external-priority patent/JP2013023029A/en
Application filed by 芦森工業株式会社 filed Critical 芦森工業株式会社
Publication of WO2013011900A1 publication Critical patent/WO2013011900A1/en

Links

Images

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
    • B60R21/213—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle roof frames or pillars
    • 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
    • B60R21/232—Curtain-type airbags deploying mainly in a vertical direction from their top edge
    • 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
    • B60R21/201—Packaging straps or envelopes for inflatable members
    • 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

Definitions

  • the present invention relates to an airbag device that inflates and deploys an airbag in a vehicle and protects an occupant with the airbag.
  • Airbag devices are used to protect passengers in the event of a vehicle emergency or collision.
  • the airbag device includes an airbag fixed to a vehicle body, and receives an occupant by the airbag that is inflated and deployed. At that time, the airbag may receive a large force due to pulling accompanying deployment and an impact received by the occupant. Therefore, high strength is required for the portion of the airbag fixed to the vehicle body.
  • an airbag in which the fixing cloth fixed to the vehicle body is formed of two or more cloths and the strength of the fixing cloth is ensured (see Patent Document 1).
  • the airbag device reliably protects the occupant when the occupant is received by the inflated and deployed airbag. Therefore, the airbag needs to be fixed to the vehicle body and deployed in a predetermined range in the vehicle.
  • an airbag apparatus in which a fixed cloth (fixed portion) fixed to a vehicle body is provided in an airbag is known (see Patent Document 2).
  • a fixed cloth is sewn and two lower portions of the fixed cloth are attached to the airbag by sewing.
  • the fixed cloth is fixed to the vehicle body and maintains the position of the airbag that is deployed in the vehicle.
  • the fixed cloth since the fixed cloth is sewn separately at a plurality of locations, the number of sewing steps increases. Since the sewing time of the fixed cloth also becomes long, the working efficiency of sewing tends to be low.
  • the fixed cloth may be subjected to a large force due to a pull accompanying the deployment of the airbag or an impact received by the occupant. For this reason, it is also required to increase the strength of the fixed cloth so that the fixed cloth can withstand external force.
  • the present invention has been made in view of the above-described conventional problems, and an object of the present invention is to make it possible to easily form a fixed cloth composed of a plurality of cloths on an airbag and to shorten the work time required for forming the fixed cloth. It is. Another object of the present invention is to improve the sewing work efficiency by increasing the strength of the fixed fabric of the airbag and reducing the process and time for sewing the fixed fabric.
  • the present invention is an airbag apparatus including an airbag having a fixed cloth fixed to a vehicle body, and the fixed cloth is folded into a predetermined plurality of times and coupled to the airbag.
  • the present invention also relates to an airbag apparatus including an airbag having a fixed cloth fixed to a vehicle body, wherein the fixed cloth is a combined sewing portion that couples the fixed cloth to the airbag, and reinforcing sewing that reinforces the fixed cloth.
  • the airbag device includes a joint sewing portion and a reinforcement sewing portion that are continuously formed.
  • a fixed cloth composed of a plurality of cloths can be easily formed on an airbag.
  • the work time required for forming the fixed cloth can be shortened.
  • strength of the fixed cloth of an airbag can be made high. Further, it is possible to improve the sewing work efficiency by reducing the process and time for sewing the fixed cloth.
  • FIG. 12 is a diagram illustrating a fixed cloth partially different from the fixed cloth illustrated in FIG. 11. It is a figure which shows a protective cloth. It is a figure which shows the protection cloth before and behind attaching to an airbag. It is a figure which shows the fixing member attached to the airbag. It is an expanded view which shows the fixed cloth and protective cloth of other embodiment. It is a figure which shows the protection cloth before and behind attaching to an airbag.
  • an airbag device of the present invention An embodiment of an airbag device of the present invention will be described with reference to the drawings.
  • a curtain airbag device (hereinafter simply referred to as an airbag device) that deploys an airbag in a curtain shape in a vehicle will be described as an example.
  • the airbag device is mounted in a vehicle and receives and protects an occupant with an airbag that is inflated and deployed.
  • FIG. 1 is a view showing an airbag apparatus according to the present embodiment.
  • the airbag apparatus 1 mounted in the vehicle 90 is shown as viewed from the passenger compartment.
  • the side wall 91 and the airbag device 1 of the vehicle 90 are schematically shown as viewed from the width direction of the vehicle 90 with the rear side of the vehicle 90 omitted.
  • the airbag device 1 is shown through the inner surface of the vehicle 90.
  • the front and rear in the vehicle 90 are simply referred to as front and rear
  • the front-rear direction in the vehicle 90 is simply referred to as front-rear direction.
  • the upper and lower portions in the vehicle 90 are simply referred to as upper and lower portions
  • the vertical direction in the vehicle 90 is simply referred to as the vertical direction.
  • the vehicle 90 has an upper roof rail 92, a front front pillar (A pillar) 93, a center pillar (B pillar) 94, and a rear rear pillar (C pillar) (see FIG. Not shown).
  • the vehicle 90 includes a front door 95, a rear door 96, and window portions 97 and 98 provided in the doors 95 and 96.
  • the airbag device 1 includes a tubular inflator 2, a fixing member 10, and an airbag (curtain airbag) 20, and is disposed inside a trim and a head lining (not shown) attached to a vehicle body. .
  • the airbag 20 is folded into an elongated shape so as to be inflated and deployed, and is disposed along the upper portion of the side wall 91 and attached to the vehicle 90.
  • the airbag 20 is attached to the roof rail 92 along the front-rear direction, and is disposed from the rear pillar to the front pillar 93.
  • the folded airbag 20 is fixed to the vehicle body by a plurality of fixing members 10.
  • the fixing member 10 fixes a plurality of fixed cloths 30 included in the airbag 20 to the vehicle body.
  • the inflator 2 is a cylinder type gas generator and is inserted into the airbag 20 to generate gas in the airbag 20.
  • the inflator 2 is disposed above the center pillar 94 and is attached to the roof rail 92 by a fixing means (not shown).
  • the inflator 2 is fixed to the vehicle body by a fixing means (not shown), and generates gas from a plurality of gas outlets 2A and supplies the gas to the airbag 20 at the time of vehicle emergency or impact detection. With this gas, the airbag 20 is inflated and deployed in a curtain shape from the upper part of the side wall 91 downward.
  • FIG. 2 is a view showing the airbag 20 expanded on a plane.
  • the airbag 20 is a rectangular bag, and is manufactured, for example, from a base cloth made of a resin-coated cloth.
  • the airbag 20 includes a front base fabric (front panel) 21 on the passenger side and a back base fabric (back panel) 22 on the side wall 91 side.
  • the airbag 20 includes the connecting belt 3, the gas supply unit 23, and a plurality (six in FIG. 2) of fixed cloths 30.
  • the inflator 2 (not shown in FIG. 2) is inserted into the gas supply unit 23.
  • the front end of the airbag 20 is connected to the front pillar 93 by the connecting belt 3, and the tip of the connecting belt 3 is fixed to the vehicle body.
  • the front base fabric 21 and the back base fabric 22 are formed in the same shape, overlapped, and joined along the outer edge joint portion 24.
  • the outer edge joint portion 24 divides the airbag 20 and forms an inflatable portion 25 that is inflated by the gas generated by the inflator 2 between the base fabrics 21 and 22.
  • the base fabrics 21 and 22 are joined by sewing and adhesion at an outer edge joint portion 24 that defines the outer edge shape of the inflatable portion 25. That is, the base fabrics 21 and 22 are sewn one or more times along the outer edge joint portion 24, and the sewn portions are sealed with an adhesive. Thereby, the base fabrics 21 and 22 are joined in an airtight manner at the outer edge joint portion 24.
  • the base fabrics 21 and 22 may be joined only by sewing at the outer edge joint portion 24.
  • the airbag 20 is formed with a front inflating portion 25A, a rear inflating portion 25B, and a connected inflating portion 25C by the outer edge joint portion 24.
  • the inflating portions 25A to 25C each have a rectangular shape and constitute the inflating portion 25 of the airbag 20 as a whole.
  • the front inflating portion 25A is disposed forward in the airbag 20
  • the rear inflating portion 25B is disposed rearward in the airbag 20
  • the connecting inflating portion 25C connects the front inflating portion 25A and the rear inflating portion 25B.
  • a non-expanding portion 26 is provided between the three expanding portions 25A to 25C.
  • the airbag 20 has a plurality (four in FIG. 2) of internal joint portions 27 in the inflatable portion 25.
  • the base fabrics 21 and 22 are joined at the inner joint portion 27 in the same manner as the outer edge joint portion 24.
  • the tip of the internal joint portion 27 is joined in an annular shape within the expansion portion 25.
  • the plurality of internal joint portions 27 are arranged apart from each other in the front-rear direction, and form a gas circulation portion and an air chamber in the expansion portion 25.
  • the gas supply unit 23 is an opening for supplying gas into the airbag 20 and is formed in the middle of the airbag 20 in the front-rear direction.
  • the base fabrics 21 and 22 protrude obliquely upward from an upper edge (referred to as an upper edge) of the airbag 20 in the gas supply unit 23.
  • the edge portions of the base fabrics 21 and 22 are continuously joined from the outer edge joint portion 24 except for the insertion port 23A at the tip.
  • the gas supply part 23 is formed in the cylinder shape which both ends opened, and is provided in the upper edge part of the airbag 20 integrally.
  • the inside of the gas supply unit 23 is connected to the outside of the airbag 20 through the insertion port 23A at one end, and is connected to the inside of the inflating unit 25 at the other end.
  • the inflator 2 is inserted into the gas supply unit 23 from the insertion port 23 ⁇ / b> A and is disposed in the airbag 20.
  • the gas supply unit 23 is fastened with a band (not shown) and fixed to the inflator 2 in an airtight manner.
  • the inflator 2 generates gas in the gas supply unit 23 and supplies the gas into the airbag 20.
  • the inflating portion 25 is inflated by gas, and the airbag 20 is deployed in a curtain shape while eliminating the folded shape.
  • the gas is supplied to the front expansion part 25A and is supplied from the connection expansion part 25C to the rear expansion part 25B.
  • the airbag 20 is inflated and deployed so as to cover the side wall 91, closes the windows 97 and 98, receives the front and rear passengers, and protects the passenger's head around the head.
  • the airbag 20 is attached to the vehicle body by a plurality of fixed cloths 30.
  • the fixed cloth 30 is a portion (fixed portion) fixed to the vehicle body of the airbag 20 and is formed integrally with the upper edge portion of the airbag 20.
  • the fixed cloth 30 is fixed to each part of the vehicle body by the fixing member 10 (see FIG. 1).
  • the fixing member 10 and the fixing cloth 30 will be described.
  • FIG. 3 is a view showing the fixing member 10 and the fixing cloth 30 of the airbag 20.
  • FIG. 3A is a perspective view of the fixing member 10.
  • FIG. 3B is a view showing the fixed cloth 30 of the airbag 20.
  • the fixed cloth 30 shown in FIG. 3B is sewn with a second sewing pattern (sewing portion is indicated by a broken line) which will be described later.
  • FIG. 4 is a view showing the fixing member 10 attached to the airbag 20.
  • 4A is a perspective view of the fixing member 10
  • FIG. 4B is a side view of the fixing member 10 and the airbag 20 as viewed from the direction of the arrow X1 in FIG. 4A.
  • the airbag 20 is attached to the vehicle body in the folded shape shown in FIG.
  • the fixing member 10 is a bracket for attaching the folded airbag 20 to the vehicle body, and is made of a plate-like member that is bent at a plurality of locations as shown in FIG. 3A.
  • the fixing member 10 (see FIG. 4) is disposed around the airbag 20 along the outer surface of the airbag 20 to hold the airbag 20.
  • the fixing member 10 includes an attachment portion 11 that protrudes upward, and an attachment hole 12 that is formed in the attachment portion 11.
  • the attachment portion 11 is attached to the vehicle body by attachment means, for example, a bolt (not shown) inserted into the attachment hole 12.
  • the fixed cloth 30 includes a rectangular protrusion 31 and a base 32 as shown in FIG. 3B.
  • the protruding portion 31 protrudes from the edge of the airbag 20 (upper edge in FIG. 3B).
  • the base portion 32 is a portion located around the protruding portion 31 in the edge portion of the airbag 20.
  • the fixed cloth 30 has an insertion portion 33 into which the fixing member 10 is inserted.
  • the insertion portion 33 is formed of a linear slit and penetrates the fixed cloth 30.
  • the insertion portion 33 is formed along the upper edge portion of the airbag 20, and the length thereof is longer than the width of the attachment portion 11.
  • the attachment part 11 of the fixing member 10 is inserted into the insertion part 33 provided in the fixing cloth 30 and penetrates the fixing cloth 30. Thereafter, the fixing member 10 is tilted and placed on the outer surface of the airbag 20 as shown in FIG.
  • the protruding portion 31 of the fixing cloth 30 is bent along the insertion portion 33 of the attachment portion 11 when the fixing member 10 is tilted, and is arranged along the fixing member 10. Thereby, the fixing member 10 is attached to the fixing cloth 30 and the airbag 20.
  • the fixing cloth 30 is fixed to the vehicle body by the fixing member 10 inserted into the insertion portion 33.
  • FIG. 5 is an exploded view of the airbag 20 and the fixed cloth 30.
  • the airbag 20 includes a coupling portion 28 to which the fixed cloth 30 is coupled as illustrated.
  • the coupling portion 28 is a predetermined portion located in the edge portion of the airbag 20.
  • the base portion 32 of the fixed cloth 30 is overlapped with the coupling portion 28.
  • the airbag 20 has one recess 28 ⁇ / b> A and two through holes 29 in the coupling portion 28.
  • the recess 28A is formed at the center of the coupling portion 28, and the two through holes 29 are formed on both sides of the recess 28A.
  • the fixed cloth 30 is coupled to the coupling portion 28 of the airbag 20 by sewing.
  • the fixed cloth 30 is made of a cloth separate from the airbag 20 and has two concave portions 35 and two through holes 36.
  • the recess 35 and the through hole 36 are formed in the base 32 on both sides of the protrusion 31.
  • the fixed cloth 30 is superimposed on the airbag 20 (the coupling portion 28) and coupled to the airbag 20 at a predetermined location. At that time, the airbag 20 and the fixed cloth 30 are accurately overlapped by aligning the positions of the through holes 29 and 36.
  • the insertion portion 33 and the concave portion 35 of the fixed cloth 30 are disposed in the recess 28 ⁇ / b> A of the coupling portion 28.
  • the fixed cloth 30 is integrated with the airbag 20 by bonding.
  • the fixed cloth 30 is a folded cloth obtained by folding a base cloth.
  • the fixed cloth 30 is folded a predetermined number of times (two or more times), overlapped and joined to the airbag 20, and then fixed to the vehicle body by the fixing member 10. Is done.
  • the fixed cloth 30 is made of a plurality of overlapping cloths having the same shape, and is composed of a plurality of (multiple layers) base cloths to increase the strength.
  • FIG. 6 is a diagram illustrating a procedure for forming the fixed cloth 30.
  • FIG. 6A is a development view of the fixed cloth 30.
  • 6B and 6C are diagrams showing the fixed cloth 30 being folded.
  • FIG. 6D is a cross-sectional view of the fixed cloth 30 as viewed in the direction of arrows X2-X2 in FIG. 6C.
  • the fixed cloth 30 is made of a belt-like base cloth, and predetermined folding lines L1 to L3 are set.
  • the fixed cloth 30 is folded in order by a plurality of folding lines L1 to L3.
  • the first and second folding lines L1 and L2 are set at two positions in the longitudinal direction of the fixed cloth 30 (left and right in FIG. 6A) so as to be orthogonal to the longitudinal direction of the fixed cloth 30.
  • the third fold line L3 is a center line in the width direction (vertical direction in FIG. 6A) of the fixed cloth 30, and intersects the first and second fold lines L1 and L2.
  • the fixed cloth 30 is divided into a plurality (six in FIG. 6) of fixed pieces (small cloth) 41 to 46 by a plurality of folding lines L1 to L3.
  • the plurality of fixed pieces 41 to 46 have the same shape as the fixed cloth 30 after being folded, and are formed side by side in the fixed cloth 30.
  • the fixed cloth 30 is composed of a plurality of fixed pieces 41 to 46 that are integrally connected, and is formed symmetrically with respect to the third folding line L3. On both sides of the third fold line L3, three fixed pieces 41 to 43 and 44 to 46 are formed along the third fold line L3, respectively. Further, the fixed cloth 30 has a slit 47 formed at the position of the fold. The slit 47 is provided between the fixed pieces 41 to 43 and 44 to 46 to facilitate the folding of the fixed cloth 30. In the present embodiment, the fixed cloth 30 has three slits 47 formed linearly along the third fold line L3 in the portion of the third fold line L3. The slit 47 is formed in the fixed cloth 30 so as not to divide the fixed cloth 30.
  • the fixed cloth 30 is first folded at the first and second folding lines L1 and L2 (arrows Y1 and Y2 in FIG. 6B).
  • the fixed cloth 30 is folded in three and folded to one third, and then the fixed cloth 30 is folded back at the third folding line L3 (arrow Y3 in FIG. 6C).
  • the fixed cloth 30 is folded in six by folding back three times, and is folded into one sixth. At that time, the fixing cloth 30 is folded while the positions of the concave portions 35 and the through holes 36 of the fixing pieces 41 to 46 are respectively adjusted.
  • the fixed cloth 30 is folded into a predetermined multiple times (here, three times) and superimposed on six layers (fixed pieces 41 to 46), and is formed into a shape (final shape) coupled to the airbag 20.
  • the folded fixed cloth 30 (see FIG. 5) is coupled to the airbag 20.
  • FIG. 7 is a view showing the fixed cloth 30 and the airbag 20 before being joined.
  • FIG. 7A is a view showing the fixed fabric 30 and the airbag 20 that are overlapped.
  • FIG. 7B is a cross-sectional view of the fixed fabric 30 and the airbag 20 as viewed in the direction of arrows X3-X3 in FIG. 7A.
  • FIG. 7C is a cross-sectional view of the fixed fabric 30 and the airbag 20 as viewed in the direction of arrows X4-X4 in FIG. 7A.
  • the airbag 20 (the coupling portion 28) is sandwiched between the fixed cloths 30 before the fixed cloth 30 is bonded, that is, the airbag 20 is arranged between the folded fixed cloths 30 and fixed.
  • the cloth 30 and the airbag 20 are overlaid. At that time, three fixing cloths 30 are arranged on both sides of the airbag 20 while aligning the positions of the through holes 29 and 36 respectively. Subsequently, the fixed cloth 30 and the airbag 20 are joined by sewing.
  • FIG. 8 is a view showing a first sewing pattern of the fixed cloth 30.
  • the fixed cloth 30 has two kinds of sewing parts 37A and 38A including a combined sewing part 37A for connecting the fixed cloth 30 to the airbag 20 and a reinforcing sewing part 38A for reinforcing the fixed cloth 30. Sewing is performed with one combined sewing portion 37A and one reinforcing sewing portion 38A. That is, the fixed cloth 30 and the airbag 20 are overlapped and stitched together at the joint sewing portion 37A. That is, the fixed cloth 30 is formed on the airbag 20 by connecting the fixed cloth 30 and the airbag 20 with the combined sewing portion 37A.
  • the combined sewing portion 37 ⁇ / b> A is an attachment sewing portion for attaching the fixed cloth 30 to the airbag 20 by sewing, and is formed on the fixed cloth 30 by sewing across the base portion 32 of the fixed cloth 30. The entire base portion 32 is sewn by the linear joint sewing portion 37A.
  • the combined sewing portion 37 ⁇ / b> A is formed up to the outside of the fixed cloth 30 at the base portion 32 of the fixed cloth 30.
  • the reinforcing sewing portion 38A is formed by sewing the fixed cloth 30 that is folded.
  • the fixed cloth 30 is sewed by the reinforcement sewing portion 38A and reinforced by sewing.
  • the reinforcing sewing portion 38 ⁇ / b> A is formed around (the peripheral portion) around the insertion portion 33, reinforces the insertion portion 33 of the fixed cloth 30, and sewes the fixed cloth 30 along the insertion portion 33 to fix the fixed cloth 30.
  • the reinforcing sewing portion 38 ⁇ / b> A is formed in an annular shape (rectangular shape in FIG. 8) surrounding the insertion portion 33 of the fixed cloth 30.
  • the fixed cloth 30 is sewn into a rectangular shape at the reinforcement sewing portion 38A, and the plurality of cloths are integrated and reinforced by the reinforcement sewing portion 38A.
  • the reinforcement sewing portion 38 ⁇ / b> A reinforces the peripheral portion of the insertion portion 33 and increases the strength around the insertion portion 33.
  • the two sewing portions 37 ⁇ / b> A and 38 ⁇ / b> A are formed apart in the fixed cloth 30. That is, the sewing portions 37 ⁇ / b> A and 38 ⁇ / b> A are independent from each other and are formed separately on the fixed cloth 30.
  • the fixed cloth 30 is sewn twice.
  • the fixed cloth 30 is sewn only once.
  • FIG. 9 is a diagram illustrating a second sewing pattern of the fixed cloth 30.
  • FIG. 9A is a diagram showing the fixed cloth 30 after sewing.
  • 9B and 9C are diagrams illustrating a sewing process of the fixed cloth 30.
  • the sewing parts 37B and 38B of the second sewing pattern are basically the same sewing parts as the sewing parts 37A and 38A of the first sewing pattern. However, in the second sewing pattern, as shown in the figure, the joint sewing portion 37B and the reinforcement sewing portion 38B are connected and formed continuously by one sewing. Therefore, the entire shape of the sewing portions 37B and 38B is set to a shape that can be written with a single stroke.
  • the combined sewing portion 37B and the reinforcing sewing portion 38B have a contacting portion or an overlapping portion.
  • the linear portions of the sewing portions 37B and 38B are provided at the same position on the base portion 32.
  • the reinforcing sewing portion 38B is formed so as to overlap the intermediate portion of the combined sewing portion 37B.
  • the entire sewing portions 37B and 38B are continuously sewn as in a single stroke.
  • the sewing direction is changed and the portion to be sewn is connected to the combined sewing portion.
  • the portion 37B is changed to the reinforcement sewing portion 38B.
  • the fixed cloth 30 is sewn in a rectangular shape so as to surround the insertion portion 33 to form a reinforcing sewing portion 38B (see FIG. 9C). Subsequently, sewing is performed to the other end of the combined sewing portion 37B, and the sewing is finished.
  • the entire reinforcing sewing portion 38B is formed, and then the remaining portion of the combined sewing portion 37B is formed.
  • a linear joint sewing portion 37B and a rectangular reinforcement sewing portion 38B are continuously formed by one sewing.
  • the reinforcing sewing portion 38 ⁇ / b> B is formed around the insertion portion 33 and reinforces the fixed cloth 30 around the insertion portion 33.
  • the fixed cloth 30 is formed by a plurality of combined cloths and provided on the airbag 20.
  • the fixing member 10 (see FIG. 4) is attached to the fixing cloth 30.
  • the fixed cloth 30 is fixed to the vehicle body by the fixing member 10 after being attached to the airbag 20.
  • the fixed cloth 30 is folded in a predetermined plurality of times and coupled to the airbag 20, so that the fixed cloth 30 can be easily handled and managed. Since the fixed cloth 30 only needs to be folded a predetermined number of times, it is possible to reduce the trouble of checking the number of the fixed cloths 30. Moreover, the fixed cloth 30 made of a plurality of cloths can be easily formed on the airbag 20. Since it is possible to prevent the number of the fixing cloths 30 from being mistaken, the strength necessary for the fixing cloth 30 can be ensured. Since the labor required for forming the fixed cloth 30 can be reduced, the work time required for forming the fixed cloth 30 can be shortened.
  • the fixed cloth 30 can be folded accurately by sequentially folding the fixed cloth 30 along a plurality of folding lines L1 to L3. Since the slit 47 is formed at the fold position of the fixed cloth 30, the fixed cloth 30 can be easily and accurately folded.
  • the sewing of the sewing parts 37B and 38B can be performed in one step without interruption. As a result, since the process and time for sewing can be reduced, the work efficiency of sewing can be improved.
  • the fixed cloth 30 Since the fixed cloth 30 is coupled to the airbag 20 by sewing, the fixed cloth 30 can be easily coupled to the airbag 20.
  • the fixed cloth 30 and the airbag 20 can be combined with high strength. Since the fixed cloth 30 is reinforced by the reinforcing sewing portions 38 (38A, 38B), the strength of the fixed cloth 30 can be increased.
  • the plurality of cloths of the fixed cloth 30 receive external force jointly without receiving external force alone. As a result, the fixed cloth 30 has high strength against external force and is not easily torn.
  • the insertion portion 33 is reinforced by the reinforcing sewing portion 38 formed around the insertion portion 33, the strength of the peripheral portion of the insertion portion 33 can be increased.
  • the fixed cloth 30 is difficult to be broken around the insertion portion 33, it is possible to prevent the fixed cloth 30 from being detached from the fixed member 10.
  • the reinforcing sewing portion 38 is formed so as to surround the insertion portion 33, the entire area around the insertion portion 33 can be reinforced.
  • the joint sewing portion 37 (37A, 37B) (see FIGS. 8 and 9) is formed on the base 32 of the fixed cloth 30, the fixed cloth 30 can be firmly attached to the airbag 20 at the base 32.
  • the bottom of the recessed part 35 is a part where load is easily applied, and the joint sewing part 37 needs to be formed between the lower parts of the bottoms of at least two recessed parts 35.
  • the combined sewing portion 37 only needs to be formed between the lower portions of the bottom of the recess 35, and may not be formed outside the lower portion of the bottom of the recess 35.
  • the combined sewing portion 37 is preferably formed as described above in order to reliably cope with the load on the fixed cloth 30.
  • the concave portion 35 of the fixed cloth 30 is provided to facilitate bending of the protruding portion 31 when the protruding portion 31 of the fixed cloth 30 is bent by the fixing member 10. Accordingly, when the ease of bending the protruding portion 31 does not matter, the recessed portion 35 may not be provided in the fixed cloth 30. In this case, for example, the corner between the protruding portion 31 and the base portion 32 is formed in a curved shape, and the protruding portion 31 and the base portion 32 are connected by the curved portion. Further, the insertion portion 33 may be disposed outside the recess 28A (see FIG. 5) of the coupling portion 28.
  • the recess 28A is not necessary. Therefore, the recess 28 ⁇ / b> A does not need to be formed in the coupling portion 28.
  • the fixed cloth 30 is not limited to the above folding method, but may be folded in other ways.
  • the fixed cloth 30 may be formed of a plurality of overlapping cloths after being folded.
  • the same number of the fixing cloths 30 may be arranged on both surfaces of the airbag 20 or may be arranged so that the number of the fixing fabrics 30 is different on each surface of the airbag 20.
  • the fixed cloth 30 may be disposed only on one surface of the airbag 20.
  • the joint sewing portion 37 may be formed in a shape other than a straight shape (for example, a curved shape or a wave shape).
  • the reinforcing sewing portion 38 may be formed in a shape other than a rectangular shape (for example, a circular shape or a polygonal shape).
  • FIG. 10 and 11 are diagrams showing fixed fabrics 50 and 51 according to another embodiment.
  • FIG. 10A and FIG. 11A are development views showing the fixed fabrics 50 and 51 before folding.
  • FIG. 10B and FIG. 11B are diagrams showing the fixed fabrics 50 and 51 after being folded.
  • the fixed cloth 50 shown in FIG. 10 is different from the above-described fixed cloth 30 only in the shape of the insertion portion 33, and the insertion portion 33 of the fixed cloth 50 includes a slit having a predetermined width.
  • the fixed cloth 50 is folded at the folding lines L1 to L3 and coupled to the airbag 20.
  • the fixed cloth 51 is configured in the same manner as the fixed cloth 30 described above except for the insertion portion 39.
  • the insertion portion 39 of the fixing cloth 51 is a fixing hole into which a fixing member (not shown) such as a bolt is inserted.
  • the fixed cloth 51 is folded along the folding lines L1 to L3, coupled to the airbag 20, and fixed to the vehicle body by a fixing member inserted into the insertion portion 39.
  • FIG. 12 and 13 are diagrams showing two sewing patterns of the fixed cloth 51.
  • FIG. 12A In the sewing pattern shown in FIG. 12, similarly to the above-described fixed cloth 30 (see FIG. 9), the combined sewing portion 52A and the reinforcing sewing portion 53A are connected together and continuously formed by one-time sewing.
  • the fixed cloth 51 is continuously sewn by the combined sewing portion 52A and the reinforcing sewing portion 53A.
  • sewing see FIG. 12A
  • an annular reinforcing sewing portion 53A is formed around the insertion portion 39 so as to surround the insertion portion 39.
  • the sewing is finished by sewing up to the other end of the combined sewing portion 52A.
  • the combined sewing portion 52A is formed in the fixed cloth 51 without traversing the base portion 32.
  • the combined sewing portion 52B and the reinforcing sewing portion 53B are continuously formed.
  • the reinforcing sewing portion 53B is formed around the insertion portion 39 so as to surround a part of the insertion portion 39 (here, the lower half).
  • the reinforcing sewing portion 53 ⁇ / b> B is formed along a part of the insertion portion 39, surrounds a portion of the insertion portion 39, and reinforces a portion around the insertion portion 39.
  • the reinforcement sewing part of a fixed cloth is formed in various shapes and positions according to the part which should be reinforced of a fixed cloth.
  • FIG. 14 is a diagram illustrating a fixed cloth 54 that is partially different from the fixed cloth 51 illustrated in FIG. 11.
  • FIG. 14A is a development view showing the fixed cloth 54 before folding.
  • FIG. 14B is a diagram illustrating the fixed fabric 54 after being folded.
  • the fixed cloth 54 shown in FIG. 14 does not have the concave portion 35 and the through hole 36.
  • the fixed cloth 54 is configured in the same manner as the above-described fixed cloth 51 except for the concave portion 35 and the through hole 36.
  • the fixed cloth 54 is folded with the edges aligned, and the fixed cloth 54 and the airbag 20 are overlapped with the edges aligned.
  • the protective cloth is disposed between the fixing member 10 (see FIGS. 3 and 4) and the airbag 20 to protect the airbag 20 from the fixing member 10.
  • a protective cloth is attached to the airbag 20 in addition to the above-described fixed cloth 30 (see FIGS. 5 to 7).
  • FIG. 15 is a diagram showing the protective cloth 60.
  • the protective cloth 60 includes a protective portion 61 that protects the airbag 20 and a coupling portion (coupling end) 62 coupled to the airbag 20.
  • the protection part 61 has a rectangular shape and is formed integrally with the coupling part 62.
  • the coupling portion 62 is formed in the same shape as the fixed pieces 41 to 46 of the fixed cloth 30 and the folded fixed cloth 30. Accordingly, the coupling portion 62 includes the insertion portion 33A, the concave portion 35A, and the through hole 36A.
  • the coupling portion 62 is coupled to the airbag 20 simultaneously with the coupling of the fixed cloth 30 to the airbag 20. Thereby, the protective cloth 60 is attached to the airbag 20.
  • FIG. 16 is a view showing the protective cloth 60 before and after being attached to the airbag 20.
  • 16A shows the fixed cloth 30 and the protective cloth 60 before the fixed cloth 30 and the airbag 20 are sewn
  • FIG. 16B shows a cross section of the fixed cloth 30 and the protective cloth 60 taken along line X5-X5 in FIG. 16A
  • FIG. 16C shows the fixed cloth 30 and the protective cloth 60 obtained by sewing the fixed cloth 30 and the airbag 20.
  • the airbag 20 is disposed between the fixed fabrics 30 after the fixed fabric 30 is folded.
  • the protective cloth 60 is disposed between the fixed cloth 30 and the airbag 20 at a position where the fixed cloth 30 is coupled to the airbag 20, that is, on the surface base cloth 21 side of the airbag 20. At that time, the protective cloth 60 is sandwiched between the fixed cloth 30 and the airbag 20 while the connecting portion 62 is aligned with the fixed cloth 30.
  • the fixed cloth 30 and the airbag 20 are sewn and joined.
  • the fixed cloth 30 is formed by connecting the joint sewing portion 37B and the reinforcement sewing portion 38B continuously.
  • the fixed cloth 30, the airbag 20, and the protective cloth 60 are sewn together by the joint sewing portion 37B, and the connection portion 62 is obtained. Is coupled to the airbag 20.
  • the protective cloth 60 is attached to the airbag 20 together with the fixed cloth 30 when the fixed cloth 30 is coupled to the airbag 20.
  • the fixing member 10 (see FIGS. 3 and 4) is attached to the fixing cloth 30 and the airbag 20 in the same manner as described above.
  • FIG. 17 is a view showing the fixing member 10 attached to the airbag 20.
  • FIG. 17A is a perspective view of the fixing member 10.
  • FIG. 17B is a side view of the fixing member 10 and the airbag 20 as viewed from the direction of the arrow X6 in FIG. 17A.
  • the protective cloth 60 is disposed on the outer surface of the folded airbag 20 as shown in the figure. When the fixing member 10 is attached to the airbag 20, the protective cloth 60 is disposed between the fixing member 10 and the airbag 20. Further, the protective cloth 60 is disposed on the entire portion of the airbag 20 that faces the fixing member 10.
  • the airbag 20 By providing the airbag 20 with the protective cloth 60, the airbag 20 can be protected from the fixing member 10, and the edge of the fixing member 10 can also be prevented from coming into contact with the airbag 20. Therefore, the airbag 20 can be prevented from being damaged by the fixing member 10. Since the protective cloth 60 is attached to the airbag 20 at the same time as the fixed cloth 30 is joined, the process and work time for attaching the protective cloth 60 can be reduced.
  • the protective cloth 60 may be disposed between the folded fixed cloths 30 or on one surface of the fixed cloth 30. Even in this case, the protective cloth 60 can be easily attached to the airbag 20. Two or more protective cloths 60 may be provided on the airbag 20.
  • FIG. 18 is a development view showing a fixed cloth 55 and a protective cloth 65 according to another embodiment.
  • the protective cloth 65 is formed integrally with the fixed cloth 55 as shown in the figure.
  • the fixed cloth 55 is configured in the same manner as the above-described fixed cloth 30 except for the protective cloth 65.
  • the protective cloth 65 is made of a rectangular cloth formed on one fixed piece 46. The protective cloth 65 is attached to the airbag 20 together with the fixed cloth 55.
  • FIG. 19 is a view showing the protective cloth 65 before and after being attached to the airbag 20.
  • FIG. 19A shows the protective cloth 65 before the fixing cloth 55 and the airbag 20 are stitched together to join the fixing cloth 55 to the airbag 20, and
  • FIG. 19B shows the fixing seen from the arrow X7-X7 line in FIG. 19A. It is sectional drawing of the cloth 55 and the protective cloth 65.
  • FIG. 19C shows a protective cloth 65 in which the fixed cloth 55 and the airbag 20 are stitched together and the fixed cloth 55 is coupled to the airbag 20. As shown in FIGS. 19A and 19B, after the fixed cloth 55 is folded, the airbag 20 is disposed between the fixed cloths 55.
  • the fixed cloth 55 is folded so that the protective cloth 65 is located on the outermost side.
  • the protective cloth 65 is disposed on the front base cloth 21 side of the airbag 20. Subsequently, as shown in FIG. 19C, the fixed cloth 55 and the airbag 20 are stitched together to couple the fixed cloth 55 to the airbag 20.
  • the protective cloth 65 is attached to the airbag 20 by coupling the fixed cloth 55 to the airbag 20.
  • the airbag 20 can be protected from the fixing member 10 by the protective cloth 65.
  • the protective cloth 65 since the protective cloth 65 is attached to the airbag 20 at the same time as the fixed cloth 55 is joined, the process and work time for attaching the protective cloth 65 can be reduced.
  • the protective cloth 65 may be arranged at a position different from the above by changing how the fixed cloth 55 is folded.
  • the protective cloth 65 may be provided on the fixed pieces 41 to 45 other than the fixed piece 46.
  • the protective cloth 65 may be provided at a plurality of locations of the fixed cloth 55.
  • the fixed cloth 30 is a plurality of fixed pieces that are integrally connected and folded by a predetermined number of times. May be.
  • the fixed cloth 30 includes a protrusion 31 and an insertion portion 33, and can be formed in the shape of FIGS. 5, 10B, 11B, and 14B. As shown in FIGS. It can be attached to the bag 20 and can be sewn as shown in FIGS. Further, the fixed cloth 30 may be disposed only on one surface of the airbag 20.
  • the joint sewing portion 37 may be formed in a shape other than a straight shape (for example, a curved shape or a wave shape).
  • the reinforcing sewing portion 38 may be formed in a shape other than a rectangular shape (for example, a circular shape or a polygonal shape). In this case as well, the fixed cloth 30 and the protective cloth 60 may be integrally formed.

Landscapes

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

Abstract

An airbag device is configured so that affixation cloth comprising sheets of cloth can be easily formed on the airbag to reduce the work time required to form the affixation cloth. An airbag device comprises an airbag (20). The airbag (20) has affixation cloth (30) affixed to a vehicle body. The affixation cloth (30) is folded a predetermined multiple number of times. The affixation cloth (30) is joined to the airbag (20) and thus the affixation cloth (30) is formed on the airbag (20). The folded affixation cloth (30) is joined to the airbag (20) and affixed to the vehicle body.

Description

エアバッグ装置Airbag device
　本発明は、車両内でエアバッグを膨張展開させて、エアバッグにより乗員を保護するエアバッグ装置に関する。 The present invention relates to an airbag device that inflates and deploys an airbag in a vehicle and protects an occupant with the airbag.
　車両の緊急時や衝突時に乗員を保護するため、エアバッグ装置が使用されている。エアバッグ装置は、車体に固定されたエアバッグを有し、膨張展開させたエアバッグにより乗員を受け止める。その際、エアバッグは、展開に伴う引っ張りや乗員を受け止めた衝撃により、大きな力を受けることがある。そのため、エアバッグの車体に固定される部分には、高い強度が要求される。
　これに関連して、車体に固定される固定布を２枚以上の布から形成して、固定布の強度を確保したエアバッグが知られている（特許文献１参照）。 Airbag devices are used to protect passengers in the event of a vehicle emergency or collision. The airbag device includes an airbag fixed to a vehicle body, and receives an occupant by the airbag that is inflated and deployed. At that time, the airbag may receive a large force due to pulling accompanying deployment and an impact received by the occupant. Therefore, high strength is required for the portion of the airbag fixed to the vehicle body.
In relation to this, there is known an airbag in which the fixing cloth fixed to the vehicle body is formed of two or more cloths and the strength of the fixing cloth is ensured (see Patent Document 1).
　また、エアバッグ装置は、膨張展開させたエアバッグにより乗員を受け止める際、乗員を確実に保護する。そのため、エアバッグは、車体に固定して、車両内の所定範囲に展開させる必要がある。
　これに関連して、従来、車体に固定される固定布（固定部）をエアバッグに設けたエアバッグ装置が知られている（特許文献２参照）。 The airbag device reliably protects the occupant when the occupant is received by the inflated and deployed airbag. Therefore, the airbag needs to be fixed to the vehicle body and deployed in a predetermined range in the vehicle.
In relation to this, an airbag apparatus in which a fixed cloth (fixed portion) fixed to a vehicle body is provided in an airbag is known (see Patent Document 2).
　特許文献１のエアバッグ装置では、複数枚の布により固定布を形成するときに、枚数を確認しつつ複数枚の布をエアバッグに取り付ける必要がある。そのため、布の取り扱いと管理に手間がかかり、固定布の形成に要する作業時間が長くなる。また、布の枚数を間違えないよう、布の取り扱いと枚数の確認を慎重に行う必要もある。従って、固定布をエアバッグに形成するための手間と時間が増大する。 In the airbag apparatus of Patent Document 1, when forming a fixed cloth with a plurality of cloths, it is necessary to attach the plurality of cloths to the airbag while checking the number of sheets. Therefore, it takes time to handle and manage the cloth, and the work time required for forming the fixed cloth becomes long. In addition, it is necessary to carefully handle and check the number of cloths so that the number of cloths is not mistaken. Therefore, labor and time for forming the fixed cloth on the airbag are increased.
　特許文献２のエアバッグ装置では、固定布を縫製するとともに、固定布の２つの下部を、それぞれ縫製によりエアバッグに取り付ける。固定布は、車体に固定されて、車両内で展開するエアバッグの位置を維持する。しかしながら、従来のエアバッグ装置では、固定布を複数箇所で別個に縫製するため、縫製の工程が多くなる。固定布の縫製時間も長くなるため、縫製の作業効率が低くなる傾向がある。また、固定布は、エアバッグの展開に伴う引っ張りや乗員を受け止めた衝撃により、大きな力を受けることがある。そのため、固定布が外力に耐えられるように、固定布の強度をより高くすることも求められている。 In the airbag device of Patent Document 2, a fixed cloth is sewn and two lower portions of the fixed cloth are attached to the airbag by sewing. The fixed cloth is fixed to the vehicle body and maintains the position of the airbag that is deployed in the vehicle. However, in the conventional airbag apparatus, since the fixed cloth is sewn separately at a plurality of locations, the number of sewing steps increases. Since the sewing time of the fixed cloth also becomes long, the working efficiency of sewing tends to be low. In addition, the fixed cloth may be subjected to a large force due to a pull accompanying the deployment of the airbag or an impact received by the occupant. For this reason, it is also required to increase the strength of the fixed cloth so that the fixed cloth can withstand external force.
特開２０１０－２１４９６９号公報JP 2010-214969 A 特開２０００－　３３８４６号公報JP 2000-33846 A
　本発明は、前記従来の問題に鑑みなされたもので、その目的は、複数の布からなる固定布をエアバッグに簡単に形成できるようにして、固定布の形成に要する作業時間を短縮することである。また、本発明の目的は、エアバッグの固定布の強度を高くしつつ、固定布の縫製のための工程と時間を削減して、縫製の作業効率を向上させることである。 The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to make it possible to easily form a fixed cloth composed of a plurality of cloths on an airbag and to shorten the work time required for forming the fixed cloth. It is. Another object of the present invention is to improve the sewing work efficiency by increasing the strength of the fixed fabric of the airbag and reducing the process and time for sewing the fixed fabric.
　本発明は、車体に固定される固定布を有するエアバッグを備えたエアバッグ装置であって、固定布が、所定の複数回折り畳まれてエアバッグに結合されたエアバッグ装置である。
　また本発明は、車体に固定される固定布を有するエアバッグを備えたエアバッグ装置であって、固定布が、エアバッグに固定布を結合する結合縫製部と、固定布を補強する補強縫製部とを有し、結合縫製部と補強縫製部が、連続して形成されたエアバッグ装置である。 The present invention is an airbag apparatus including an airbag having a fixed cloth fixed to a vehicle body, and the fixed cloth is folded into a predetermined plurality of times and coupled to the airbag.
The present invention also relates to an airbag apparatus including an airbag having a fixed cloth fixed to a vehicle body, wherein the fixed cloth is a combined sewing portion that couples the fixed cloth to the airbag, and reinforcing sewing that reinforces the fixed cloth. The airbag device includes a joint sewing portion and a reinforcement sewing portion that are continuously formed.
　本発明によれば、複数の布からなる固定布をエアバッグに簡単に形成できる。また、固定布の形成に要する作業時間を短縮することができる。
　また、本発明によれば、エアバッグの固定布の強度を高くできる。また、固定布の縫製のための工程と時間を削減して、縫製の作業効率を向上させることができる。 According to the present invention, a fixed cloth composed of a plurality of cloths can be easily formed on an airbag. In addition, the work time required for forming the fixed cloth can be shortened.
Moreover, according to this invention, the intensity | strength of the fixed cloth of an airbag can be made high. Further, it is possible to improve the sewing work efficiency by reducing the process and time for sewing the fixed cloth.
本実施形態のエアバッグ装置を示す図である。It is a figure which shows the airbag apparatus of this embodiment. 平面上に拡げたエアバッグを示す図である。It is a figure which shows the airbag expanded on the plane. 固定部材とエアバッグの固定布を示す図である。It is a figure which shows the fixing member and the fixing cloth of an airbag. エアバッグに取り付けた固定部材を示す図である。It is a figure which shows the fixing member attached to the airbag. エアバッグと固定布を分解して示す図である。It is a figure which decomposes | disassembles and shows an airbag and a fixed cloth. 固定布の形成手順を示す図である。It is a figure which shows the formation procedure of a fixed cloth. 結合前の固定布とエアバッグを示す図である。It is a figure which shows the fixed cloth and airbag before joining. 固定布の第１の縫製パターンを示す図である。It is a figure which shows the 1st sewing pattern of a fixed cloth. 固定布の第２の縫製パターンを示す図である。It is a figure which shows the 2nd sewing pattern of a fixed cloth. 他の実施形態の固定布を示す図である。It is a figure which shows the fixed cloth of other embodiment. 他の実施形態の固定布を示す図である。It is a figure which shows the fixed cloth of other embodiment. 図１１に示す固定布の縫製パターンを示す図である。It is a figure which shows the sewing pattern of the fixed cloth shown in FIG. 図１１に示す固定布の縫製パターンを示す図である。It is a figure which shows the sewing pattern of the fixed cloth shown in FIG. 図１１に示す固定布と一部が異なる固定布を示す図である。FIG. 12 is a diagram illustrating a fixed cloth partially different from the fixed cloth illustrated in FIG. 11. 保護布を示す図である。It is a figure which shows a protective cloth. エアバッグへ取り付ける前後の保護布を示す図である。It is a figure which shows the protection cloth before and behind attaching to an airbag. エアバッグに取り付けた固定部材を示す図である。It is a figure which shows the fixing member attached to the airbag. 他の実施形態の固定布と保護布を示す展開図である。It is an expanded view which shows the fixed cloth and protective cloth of other embodiment. エアバッグへ取り付ける前後の保護布を示す図である。It is a figure which shows the protection cloth before and behind attaching to an airbag.
　本発明のエアバッグ装置の一実施形態について図面を参照して説明する。
　本実施形態では、車両内でエアバッグをカーテン状に展開させるカーテンエアバッグ装置（以下、単にエアバッグ装置という）を例に採り説明する。エアバッグ装置は、車両内に搭載されて、膨張展開するエアバッグにより乗員を受け止めて保護する。 An embodiment of an airbag device of the present invention will be described with reference to the drawings.
In the present embodiment, a curtain airbag device (hereinafter simply referred to as an airbag device) that deploys an airbag in a curtain shape in a vehicle will be described as an example. The airbag device is mounted in a vehicle and receives and protects an occupant with an airbag that is inflated and deployed.
　図１は、本実施形態のエアバッグ装置を示す図である。図１では、車両９０に搭載したエアバッグ装置１を車室内から見て示している。また、車両９０の側壁９１とエアバッグ装置１を、車両９０の後方側を省略して、かつ、車両９０の幅方向から見て模式的に示している。エアバッグ装置１は、車両９０の内面を透視して示している。
　なお、本実施形態では、車両９０における前方と後方を単に前方と後方といい、車両９０における前後方向を単に前後方向という。また、車両９０における上方と下方を単に上方と下方といい、車両９０における上下方向を単に上下方向という。 FIG. 1 is a view showing an airbag apparatus according to the present embodiment. In FIG. 1, the airbag apparatus 1 mounted in the vehicle 90 is shown as viewed from the passenger compartment. Further, the side wall 91 and the airbag device 1 of the vehicle 90 are schematically shown as viewed from the width direction of the vehicle 90 with the rear side of the vehicle 90 omitted. The airbag device 1 is shown through the inner surface of the vehicle 90.
In the present embodiment, the front and rear in the vehicle 90 are simply referred to as front and rear, and the front-rear direction in the vehicle 90 is simply referred to as front-rear direction. In addition, the upper and lower portions in the vehicle 90 are simply referred to as upper and lower portions, and the vertical direction in the vehicle 90 is simply referred to as the vertical direction.
　車両９０は、図示のように、車室内の側壁９１に、上方のルーフレール９２、前方のフロントピラー（Ａピラー）９３、センターピラー（Ｂピラー）９４、及び、後方のリアピラー（Ｃピラー）（図示せず）を有する。また、車両９０は、前部ドア９５と、後部ドア９６と、ドア９５、９６に設けられた窓部９７、９８とを備えている。 As shown in the figure, the vehicle 90 has an upper roof rail 92, a front front pillar (A pillar) 93, a center pillar (B pillar) 94, and a rear rear pillar (C pillar) (see FIG. Not shown). The vehicle 90 includes a front door 95, a rear door 96, and window portions 97 and 98 provided in the doors 95 and 96.
　エアバッグ装置１は、筒状のインフレータ２と、固定部材１０と、エアバッグ（カーテンエアバッグ）２０とを備え、車体に取り付けられたトリムとヘッドライニング（図示せず）の内部に配置される。エアバッグ２０は、膨張展開できるように細長く折り畳まれて、側壁９１の上部に沿って配置されて車両９０内に取り付けられる。エアバッグ２０は、前後方向に沿ってルーフレール９２に取り付けられて、リアピラーからフロントピラー９３まで配置される。折り畳まれたエアバッグ２０は、複数の固定部材１０により、車体に固定される。固定部材１０は、エアバッグ２０が有する複数の固定布３０を車体に固定する。 The airbag device 1 includes a tubular inflator 2, a fixing member 10, and an airbag (curtain airbag) 20, and is disposed inside a trim and a head lining (not shown) attached to a vehicle body. . The airbag 20 is folded into an elongated shape so as to be inflated and deployed, and is disposed along the upper portion of the side wall 91 and attached to the vehicle 90. The airbag 20 is attached to the roof rail 92 along the front-rear direction, and is disposed from the rear pillar to the front pillar 93. The folded airbag 20 is fixed to the vehicle body by a plurality of fixing members 10. The fixing member 10 fixes a plurality of fixed cloths 30 included in the airbag 20 to the vehicle body.
　インフレータ２は、シリンダタイプのガス発生装置であり、エアバッグ２０内に挿入されて、エアバッグ２０内でガスを発生する。インフレータ２は、センターピラー９４の上方に配置されて、固定手段（図示せず）によりルーフレール９２に取り付けられる。インフレータ２は、固定手段（図示せず）により車体に固定され、車両緊急時や衝撃検知時に、複数のガスの噴出口２Ａからガスを発生して、エアバッグ２０にガスを供給する。このガスにより、エアバッグ２０を、側壁９１の上部から下方に向かってカーテン状に膨張展開させる。 The inflator 2 is a cylinder type gas generator and is inserted into the airbag 20 to generate gas in the airbag 20. The inflator 2 is disposed above the center pillar 94 and is attached to the roof rail 92 by a fixing means (not shown). The inflator 2 is fixed to the vehicle body by a fixing means (not shown), and generates gas from a plurality of gas outlets 2A and supplies the gas to the airbag 20 at the time of vehicle emergency or impact detection. With this gas, the airbag 20 is inflated and deployed in a curtain shape from the upper part of the side wall 91 downward.
　図２は、平面上に拡げたエアバッグ２０を示す図である。
　エアバッグ２０は、図示のように、矩形状の袋体であり、例えば、樹脂を被覆した布からなる基布により製造される。ここでは、エアバッグ２０は、乗員側の表基布（表パネル）２１と、側壁９１側の裏基布（裏パネル）２２とを有する。また、エアバッグ２０は、連結ベルト３と、ガス供給部２３と、複数（図２では６つ）の固定布３０とを有する。インフレータ２（図２では図示せず）はガス供給部２３内に挿入される。エアバッグ２０の前方端は、連結ベルト３によりフロントピラー９３に連結され、連結ベルト３の先端は車体に固定される。 FIG. 2 is a view showing the airbag 20 expanded on a plane.
As shown in the figure, the airbag 20 is a rectangular bag, and is manufactured, for example, from a base cloth made of a resin-coated cloth. Here, the airbag 20 includes a front base fabric (front panel) 21 on the passenger side and a back base fabric (back panel) 22 on the side wall 91 side. The airbag 20 includes the connecting belt 3, the gas supply unit 23, and a plurality (six in FIG. 2) of fixed cloths 30. The inflator 2 (not shown in FIG. 2) is inserted into the gas supply unit 23. The front end of the airbag 20 is connected to the front pillar 93 by the connecting belt 3, and the tip of the connecting belt 3 is fixed to the vehicle body.
　表基布２１と裏基布２２は、同じ形状に形成され、重ね合わせて、外縁接合部２４に沿って接合される。外縁接合部２４は、エアバッグ２０を区画して、基布２１、２２の間にインフレータ２が発生するガスにより膨張する膨張部２５を形成する。基布２１、２２は、膨張部２５の外縁形状を規定する外縁接合部２４で、縫製及び接着により接合される。即ち、基布２１、２２は、外縁接合部２４に沿って、１周又は複数周縫製されるとともに、縫製した部分が接着剤によりシールされる。これにより、基布２１、２２は、外縁接合部２４で気密状に接合される。なお、基布２１、２２は、外縁接合部２４で、縫製のみにより接合してもよい。 The front base fabric 21 and the back base fabric 22 are formed in the same shape, overlapped, and joined along the outer edge joint portion 24. The outer edge joint portion 24 divides the airbag 20 and forms an inflatable portion 25 that is inflated by the gas generated by the inflator 2 between the base fabrics 21 and 22. The base fabrics 21 and 22 are joined by sewing and adhesion at an outer edge joint portion 24 that defines the outer edge shape of the inflatable portion 25. That is, the base fabrics 21 and 22 are sewn one or more times along the outer edge joint portion 24, and the sewn portions are sealed with an adhesive. Thereby, the base fabrics 21 and 22 are joined in an airtight manner at the outer edge joint portion 24. The base fabrics 21 and 22 may be joined only by sewing at the outer edge joint portion 24.
　エアバッグ２０には、外縁接合部２４により、前膨張部２５Ａ、後膨張部２５Ｂ、及び、連結膨張部２５Ｃが形成される。膨張部２５Ａ～２５Ｃは、それぞれ矩形状をなし、全体としてエアバッグ２０の膨張部２５を構成する。前膨張部２５Ａはエアバッグ２０内で前方に配置され、後膨張部２５Ｂは、エアバッグ２０内で後方に配置され、連結膨張部２５Ｃは、前膨張部２５Ａと後膨張部２５Ｂを連結する。３つの膨張部２５Ａ～２５Ｃの間には、非膨張部２６が設けられている。 The airbag 20 is formed with a front inflating portion 25A, a rear inflating portion 25B, and a connected inflating portion 25C by the outer edge joint portion 24. The inflating portions 25A to 25C each have a rectangular shape and constitute the inflating portion 25 of the airbag 20 as a whole. The front inflating portion 25A is disposed forward in the airbag 20, the rear inflating portion 25B is disposed rearward in the airbag 20, and the connecting inflating portion 25C connects the front inflating portion 25A and the rear inflating portion 25B. A non-expanding portion 26 is provided between the three expanding portions 25A to 25C.
　エアバッグ２０は、膨張部２５内に、複数（図２では４つ）の内部接合部２７を有する。基布２１、２２は、内部接合部２７で、外縁接合部２４と同様に接合される。内部接合部２７の先端は、膨張部２５内で環状に接合される。複数の内部接合部２７は、前後方向に離して配置され、膨張部２５内にガスの流通部と気室を形成する。 The airbag 20 has a plurality (four in FIG. 2) of internal joint portions 27 in the inflatable portion 25. The base fabrics 21 and 22 are joined at the inner joint portion 27 in the same manner as the outer edge joint portion 24. The tip of the internal joint portion 27 is joined in an annular shape within the expansion portion 25. The plurality of internal joint portions 27 are arranged apart from each other in the front-rear direction, and form a gas circulation portion and an air chamber in the expansion portion 25.
　ガス供給部２３は、エアバッグ２０内にガスを供給するための開口部であり、エアバッグ２０の前後方向の中間に形成される。基布２１、２２は、ガス供給部２３において、エアバッグ２０の上方の縁部（上縁部という）から斜め上方に突出する。基布２１、２２の縁部は、先端の挿入口２３Ａを除いて、外縁接合部２４から連続して接合される。これにより、ガス供給部２３は、両端が開口した筒状に形成され、エアバッグ２０の上縁部に一体に設けられる。ガス供給部２３の内部は、一端の挿入口２３Ａでエアバッグ２０の外部に繋がり、他端で膨張部２５の内部と繋がる。インフレータ２は、挿入口２３Ａからガス供給部２３に挿入されて、エアバッグ２０内に配置される。ガス供給部２３は、バンド（図示せず）で締め付けられて、インフレータ２に気密状に固定される。 The gas supply unit 23 is an opening for supplying gas into the airbag 20 and is formed in the middle of the airbag 20 in the front-rear direction. The base fabrics 21 and 22 protrude obliquely upward from an upper edge (referred to as an upper edge) of the airbag 20 in the gas supply unit 23. The edge portions of the base fabrics 21 and 22 are continuously joined from the outer edge joint portion 24 except for the insertion port 23A at the tip. Thereby, the gas supply part 23 is formed in the cylinder shape which both ends opened, and is provided in the upper edge part of the airbag 20 integrally. The inside of the gas supply unit 23 is connected to the outside of the airbag 20 through the insertion port 23A at one end, and is connected to the inside of the inflating unit 25 at the other end. The inflator 2 is inserted into the gas supply unit 23 from the insertion port 23 </ b> A and is disposed in the airbag 20. The gas supply unit 23 is fastened with a band (not shown) and fixed to the inflator 2 in an airtight manner.
　インフレータ２は、ガス供給部２３内でガスを発生してエアバッグ２０内にガスを供給する。膨張部２５はガスにより膨張し、エアバッグ２０が、折り畳み形状を解消しつつカーテン状に展開する。ガスは、前膨張部２５Ａへ供給されるとともに、連結膨張部２５Ｃから後膨張部２５Ｂへ供給される。これにより、エアバッグ２０は、側壁９１を覆うように膨張展開して窓部９７、９８を塞ぎ、前席と後席の乗員を受け止めて、乗員の頭部を中心に保護する。 The inflator 2 generates gas in the gas supply unit 23 and supplies the gas into the airbag 20. The inflating portion 25 is inflated by gas, and the airbag 20 is deployed in a curtain shape while eliminating the folded shape. The gas is supplied to the front expansion part 25A and is supplied from the connection expansion part 25C to the rear expansion part 25B. Thus, the airbag 20 is inflated and deployed so as to cover the side wall 91, closes the windows 97 and 98, receives the front and rear passengers, and protects the passenger's head around the head.
　エアバッグ２０は、複数の固定布３０により車体に取り付けられる。固定布３０は、エアバッグ２０の車体に固定される部分（固定部）であり、エアバッグ２０の上縁部に一体に形成されている。固定布３０は、固定部材１０（図１参照）により、車体の各部に固定される。以下、固定部材１０と固定布３０について説明する。 The airbag 20 is attached to the vehicle body by a plurality of fixed cloths 30. The fixed cloth 30 is a portion (fixed portion) fixed to the vehicle body of the airbag 20 and is formed integrally with the upper edge portion of the airbag 20. The fixed cloth 30 is fixed to each part of the vehicle body by the fixing member 10 (see FIG. 1). Hereinafter, the fixing member 10 and the fixing cloth 30 will be described.
　図３は、固定部材１０とエアバッグ２０の固定布３０を示す図である。図３Ａは、固定部材１０の斜視図である。図３Ｂは、エアバッグ２０の固定布３０を示す図である。図３Ｂに示す固定布３０は、後述する第２の縫製パターン（縫製部は破線で示す）で縫製されている。
　図４は、エアバッグ２０に取り付けた固定部材１０を示す図である。図４Ａは、固定部材１０の斜視図であり、図４Ｂは、図４Ａの矢印Ｘ１方向から見た固定部材１０とエアバッグ２０の側面図である。エアバッグ２０は、図４に示す折り畳まれた形状で車体に取り付けられる。 FIG. 3 is a view showing the fixing member 10 and the fixing cloth 30 of the airbag 20. FIG. 3A is a perspective view of the fixing member 10. FIG. 3B is a view showing the fixed cloth 30 of the airbag 20. The fixed cloth 30 shown in FIG. 3B is sewn with a second sewing pattern (sewing portion is indicated by a broken line) which will be described later.
FIG. 4 is a view showing the fixing member 10 attached to the airbag 20. 4A is a perspective view of the fixing member 10, and FIG. 4B is a side view of the fixing member 10 and the airbag 20 as viewed from the direction of the arrow X1 in FIG. 4A. The airbag 20 is attached to the vehicle body in the folded shape shown in FIG.
　固定部材１０は、折り畳まれたエアバッグ２０を車体に取り付けるブラケットであり、図３Ａに示すように、複数箇所で折り曲げられた板状部材からなる。固定部材１０（図４参照）は、エアバッグ２０の外面に沿ってエアバッグ２０の周りに配置されて、エアバッグ２０を保持する。また、固定部材１０は、上方に突出する取付部１１と、取付部１１に形成された取付孔１２とを有する。取付部１１は、取付手段、例えば、取付孔１２に挿入したボルト（図示せず）により車体に取り付けられる。 The fixing member 10 is a bracket for attaching the folded airbag 20 to the vehicle body, and is made of a plate-like member that is bent at a plurality of locations as shown in FIG. 3A. The fixing member 10 (see FIG. 4) is disposed around the airbag 20 along the outer surface of the airbag 20 to hold the airbag 20. In addition, the fixing member 10 includes an attachment portion 11 that protrudes upward, and an attachment hole 12 that is formed in the attachment portion 11. The attachment portion 11 is attached to the vehicle body by attachment means, for example, a bolt (not shown) inserted into the attachment hole 12.
　固定布３０は、図３Ｂに示すように、矩形状の突出部３１と、基部３２とを有する。突出部３１は、エアバッグ２０の縁部（図３Ｂでは上縁部）から突出する。基部３２は、エアバッグ２０の縁部内で、突出部３１の周りに位置する部分である。固定布３０は、固定部材１０が挿入される挿入部３３を有する。挿入部３３は、直線状のスリットからなり、固定布３０を貫通する。挿入部３３は、エアバッグ２０の上縁部に沿って形成されており、その長さは、取付部１１の幅よりも長くなっている。 The fixed cloth 30 includes a rectangular protrusion 31 and a base 32 as shown in FIG. 3B. The protruding portion 31 protrudes from the edge of the airbag 20 (upper edge in FIG. 3B). The base portion 32 is a portion located around the protruding portion 31 in the edge portion of the airbag 20. The fixed cloth 30 has an insertion portion 33 into which the fixing member 10 is inserted. The insertion portion 33 is formed of a linear slit and penetrates the fixed cloth 30. The insertion portion 33 is formed along the upper edge portion of the airbag 20, and the length thereof is longer than the width of the attachment portion 11.
　固定部材１０の取付部１１は、固定布３０に設けられた挿入部３３に挿入されて、固定布３０を貫通する。その後、固定部材１０を倒して図４に示すようにエアバッグ２０の外面に配置する。固定布３０の突出部３１は、固定部材１０を倒した時に取付部１１の挿入部３３で折り曲げられて、固定部材１０に沿うように配置される。これにより、固定部材１０が固定布３０とエアバッグ２０に取り付けられる。取付部１１を車体に取り付けることで、固定布３０が、挿入部３３に挿入された固定部材１０により車体に固定される。 The attachment part 11 of the fixing member 10 is inserted into the insertion part 33 provided in the fixing cloth 30 and penetrates the fixing cloth 30. Thereafter, the fixing member 10 is tilted and placed on the outer surface of the airbag 20 as shown in FIG. The protruding portion 31 of the fixing cloth 30 is bent along the insertion portion 33 of the attachment portion 11 when the fixing member 10 is tilted, and is arranged along the fixing member 10. Thereby, the fixing member 10 is attached to the fixing cloth 30 and the airbag 20. By attaching the attachment portion 11 to the vehicle body, the fixing cloth 30 is fixed to the vehicle body by the fixing member 10 inserted into the insertion portion 33.
　次に、固定布３０について詳しく説明する。
　図５は、エアバッグ２０と固定布３０を分解して示す図である。
　エアバッグ２０は、図示のように、固定布３０が結合される結合部２８を有する。結合部２８は、エアバッグ２０の縁部内に位置する所定部分である。固定布３０の基部３２は、結合部２８に重ね合わされる。エアバッグ２０は、結合部２８に、１つの窪み２８Ａと２つの貫通孔２９を有する。窪み２８Ａは、結合部２８の中央に形成されており、２つの貫通孔２９は、窪み２８Ａの両側に形成されている。固定布３０は、エアバッグ２０の結合部２８に縫製により結合される。 Next, the fixed cloth 30 will be described in detail.
FIG. 5 is an exploded view of the airbag 20 and the fixed cloth 30.
The airbag 20 includes a coupling portion 28 to which the fixed cloth 30 is coupled as illustrated. The coupling portion 28 is a predetermined portion located in the edge portion of the airbag 20. The base portion 32 of the fixed cloth 30 is overlapped with the coupling portion 28. The airbag 20 has one recess 28 </ b> A and two through holes 29 in the coupling portion 28. The recess 28A is formed at the center of the coupling portion 28, and the two through holes 29 are formed on both sides of the recess 28A. The fixed cloth 30 is coupled to the coupling portion 28 of the airbag 20 by sewing.
　固定布３０は、エアバッグ２０とは別体の布からなり、２つの凹部３５と、２つの貫通孔３６を有する。凹部３５と貫通孔３６は、突出部３１の両側の基部３２に形成されている。固定布３０は、エアバッグ２０（結合部２８）に重ね合わされて、エアバッグ２０に所定箇所で結合される。その際、エアバッグ２０と固定布３０は、貫通孔２９、３６の位置を合わせることで、正確に重ね合わされる。固定布３０の挿入部３３及び凹部３５は、結合部２８の窪み２８Ａ内に配置される。固定布３０は、結合によりエアバッグ２０に一体化される。 The fixed cloth 30 is made of a cloth separate from the airbag 20 and has two concave portions 35 and two through holes 36. The recess 35 and the through hole 36 are formed in the base 32 on both sides of the protrusion 31. The fixed cloth 30 is superimposed on the airbag 20 (the coupling portion 28) and coupled to the airbag 20 at a predetermined location. At that time, the airbag 20 and the fixed cloth 30 are accurately overlapped by aligning the positions of the through holes 29 and 36. The insertion portion 33 and the concave portion 35 of the fixed cloth 30 are disposed in the recess 28 </ b> A of the coupling portion 28. The fixed cloth 30 is integrated with the airbag 20 by bonding.
　本実施形態では、固定布３０は、基布を折り畳んだ折り畳み布であり、所定の複数回（２回以上）折り畳んでエアバッグ２０に重ね合わされて結合された後、固定部材１０により車体に固定される。また、固定布３０は複数重なり合った同形状の布からなり、複数枚（複数層）の基布から構成して強度を高くしている。 In the present embodiment, the fixed cloth 30 is a folded cloth obtained by folding a base cloth. The fixed cloth 30 is folded a predetermined number of times (two or more times), overlapped and joined to the airbag 20, and then fixed to the vehicle body by the fixing member 10. Is done. Further, the fixed cloth 30 is made of a plurality of overlapping cloths having the same shape, and is composed of a plurality of (multiple layers) base cloths to increase the strength.
　次に、固定布３０の形成手順を説明する。
　図６は、固定布３０の形成手順を示す図である。図６Ａは、固定布３０の展開図である。図６Ｂ、図６Ｃは、折り畳み中の固定布３０を示す図である。図６Ｄは、図６Ｃの矢視Ｘ２－Ｘ２線で見た固定布３０の断面図である。
　固定布３０は、図６Ａに示すように、帯状の基布からなり、所定の折り返し線Ｌ１～Ｌ３が設定される。固定布３０は、複数の折り返し線Ｌ１～Ｌ３で順に折り返されて、折り畳まれる。 Next, the formation procedure of the fixed cloth 30 will be described.
FIG. 6 is a diagram illustrating a procedure for forming the fixed cloth 30. FIG. 6A is a development view of the fixed cloth 30. 6B and 6C are diagrams showing the fixed cloth 30 being folded. FIG. 6D is a cross-sectional view of the fixed cloth 30 as viewed in the direction of arrows X2-X2 in FIG. 6C.
As shown in FIG. 6A, the fixed cloth 30 is made of a belt-like base cloth, and predetermined folding lines L1 to L3 are set. The fixed cloth 30 is folded in order by a plurality of folding lines L1 to L3.
　第１と第２の折り返し線Ｌ１、Ｌ２は、固定布３０の長手方向（図６Ａでは左右方向）の２箇所に、固定布３０の長手方向に直交するように設定される。第３の折り返し線Ｌ３は、固定布３０の幅方向（図６Ａでは上下方向）の中心線であり、第１と第２の折り返し線Ｌ１、Ｌ２に交差する。固定布３０は、複数の折り返し線Ｌ１～Ｌ３により複数（図６では６つ）の固定ピース（小布）４１～４６に区画される。複数の固定ピース４１～４６は、それぞれ折り畳み後の固定布３０と同形状をなし、固定布３０内に並べて形成される。 The first and second folding lines L1 and L2 are set at two positions in the longitudinal direction of the fixed cloth 30 (left and right in FIG. 6A) so as to be orthogonal to the longitudinal direction of the fixed cloth 30. The third fold line L3 is a center line in the width direction (vertical direction in FIG. 6A) of the fixed cloth 30, and intersects the first and second fold lines L1 and L2. The fixed cloth 30 is divided into a plurality (six in FIG. 6) of fixed pieces (small cloth) 41 to 46 by a plurality of folding lines L1 to L3. The plurality of fixed pieces 41 to 46 have the same shape as the fixed cloth 30 after being folded, and are formed side by side in the fixed cloth 30.
　固定布３０は、一体に繋がる複数の固定ピース４１～４６からなり、第３の折り返し線Ｌ３に対して線対称に形成されている。第３の折り返し線Ｌ３の両側には、それぞれ３つの固定ピース４１～４３、４４～４６が、第３の折り返し線Ｌ３に沿って形成されている。また、固定布３０は、折り目の位置に形成されたスリット４７を有する。スリット４７は、固定ピース４１～４３、４４～４６の間に設けられて、固定布３０の折り畳みを容易にする。本実施形態では、固定布３０は、第３の折り返し線Ｌ３の部分に、第３の折り返し線Ｌ３に沿って直線状に形成された３つのスリット４７を有する。スリット４７は、固定布３０を分断しないように、固定布３０内に形成される。 The fixed cloth 30 is composed of a plurality of fixed pieces 41 to 46 that are integrally connected, and is formed symmetrically with respect to the third folding line L3. On both sides of the third fold line L3, three fixed pieces 41 to 43 and 44 to 46 are formed along the third fold line L3, respectively. Further, the fixed cloth 30 has a slit 47 formed at the position of the fold. The slit 47 is provided between the fixed pieces 41 to 43 and 44 to 46 to facilitate the folding of the fixed cloth 30. In the present embodiment, the fixed cloth 30 has three slits 47 formed linearly along the third fold line L3 in the portion of the third fold line L3. The slit 47 is formed in the fixed cloth 30 so as not to divide the fixed cloth 30.
　固定布３０は、図６Ｂに示すように、まず、第１と第２の折り返し線Ｌ１、Ｌ２で折り返す（図６Ｂの矢印Ｙ１、Ｙ２）。これにより、図６Ｃ、図６Ｄに示すように、固定布３０を三つ折りして３分の１に折り畳み、次に、固定布３０を、第３の折り返し線Ｌ３で折り返す（図６Ｃの矢印Ｙ３）。固定布３０は、３回の折り返しにより六つ折りされて、６分の１に折り畳まれる。その際、固定ピース４１～４６の凹部３５と貫通孔３６の位置をそれぞれ合わせながら、固定布３０を折り畳む。このように、固定布３０は、所定の複数回（ここでは３回）折り畳まれて６層（固定ピース４１～４６）に重ね合わされて、エアバッグ２０に結合する形状（最終形状）に形成される。続いて、折り畳んだ固定布３０（図５参照）をエアバッグ２０に結合する。 As shown in FIG. 6B, the fixed cloth 30 is first folded at the first and second folding lines L1 and L2 (arrows Y1 and Y2 in FIG. 6B). As a result, as shown in FIGS. 6C and 6D, the fixed cloth 30 is folded in three and folded to one third, and then the fixed cloth 30 is folded back at the third folding line L3 (arrow Y3 in FIG. 6C). ). The fixed cloth 30 is folded in six by folding back three times, and is folded into one sixth. At that time, the fixing cloth 30 is folded while the positions of the concave portions 35 and the through holes 36 of the fixing pieces 41 to 46 are respectively adjusted. As described above, the fixed cloth 30 is folded into a predetermined multiple times (here, three times) and superimposed on six layers (fixed pieces 41 to 46), and is formed into a shape (final shape) coupled to the airbag 20. The Subsequently, the folded fixed cloth 30 (see FIG. 5) is coupled to the airbag 20.
　図７は、結合前の固定布３０とエアバッグ２０を示す図である。図７Ａは、重ね合わせた固定布３０とエアバッグ２０を示す図である。図７Ｂは、図７Ａの矢視Ｘ３－Ｘ３線で見た固定布３０とエアバッグ２０の断面図である。図７Ｃは、図７Ａの矢視Ｘ４－Ｘ４線で見た固定布３０とエアバッグ２０の断面図である。
　図示のように、固定布３０の結合前に、エアバッグ２０（結合部２８）を固定布３０の間に挟み込む、つまり、エアバッグ２０が、折り畳まれた固定布３０の間に配置され、固定布３０とエアバッグ２０が重ね合わされる。その際、固定布３０は、貫通孔２９、３６の位置をそれぞれ合わせながら、エアバッグ２０の両面に３枚ずつ配置される。続いて、固定布３０とエアバッグ２０を縫製により結合する。 FIG. 7 is a view showing the fixed cloth 30 and the airbag 20 before being joined. FIG. 7A is a view showing the fixed fabric 30 and the airbag 20 that are overlapped. FIG. 7B is a cross-sectional view of the fixed fabric 30 and the airbag 20 as viewed in the direction of arrows X3-X3 in FIG. 7A. FIG. 7C is a cross-sectional view of the fixed fabric 30 and the airbag 20 as viewed in the direction of arrows X4-X4 in FIG. 7A.
As shown in the figure, the airbag 20 (the coupling portion 28) is sandwiched between the fixed cloths 30 before the fixed cloth 30 is bonded, that is, the airbag 20 is arranged between the folded fixed cloths 30 and fixed. The cloth 30 and the airbag 20 are overlaid. At that time, three fixing cloths 30 are arranged on both sides of the airbag 20 while aligning the positions of the through holes 29 and 36 respectively. Subsequently, the fixed cloth 30 and the airbag 20 are joined by sewing.
　図８は、固定布３０の第１の縫製パターンを示す図である。
　固定布３０は、図示のように、固定布３０をエアバッグ２０に結合する結合縫製部３７Ａと、固定布３０を補強する補強縫製部３８Ａからなる２種類の縫製部３７Ａ、３８Ａを有し、１つの結合縫製部３７Ａと１つの補強縫製部３８Ａで縫製される。即ち、固定布３０とエアバッグ２０は、重ね合わされて結合縫製部３７Ａで縫い合わされる。つまり、固定布３０とエアバッグ２０を結合縫製部３７Ａで結合することで、エアバッグ２０に固定布３０が形成される。 FIG. 8 is a view showing a first sewing pattern of the fixed cloth 30.
As shown in the figure, the fixed cloth 30 has two kinds of sewing parts 37A and 38A including a combined sewing part 37A for connecting the fixed cloth 30 to the airbag 20 and a reinforcing sewing part 38A for reinforcing the fixed cloth 30. Sewing is performed with one combined sewing portion 37A and one reinforcing sewing portion 38A. That is, the fixed cloth 30 and the airbag 20 are overlapped and stitched together at the joint sewing portion 37A. That is, the fixed cloth 30 is formed on the airbag 20 by connecting the fixed cloth 30 and the airbag 20 with the combined sewing portion 37A.
　結合縫製部３７Ａは、固定布３０を縫製によりエアバッグ２０に取り付ける取付縫製部であり、固定布３０の基部３２を横断して縫製することで固定布３０に形成される。この直線状の結合縫製部３７Ａで、基部３２の全体が縫製される。結合縫製部３７Ａは、固定布３０の基部３２において固定布３０の外まで形成される。 The combined sewing portion 37 </ b> A is an attachment sewing portion for attaching the fixed cloth 30 to the airbag 20 by sewing, and is formed on the fixed cloth 30 by sewing across the base portion 32 of the fixed cloth 30. The entire base portion 32 is sewn by the linear joint sewing portion 37A. The combined sewing portion 37 </ b> A is formed up to the outside of the fixed cloth 30 at the base portion 32 of the fixed cloth 30.
　補強縫製部３８Ａは、折り畳まれた固定布３０を縫製して形成される。固定布３０は、補強縫製部３８Ａで縫製され、縫製により補強される。また、補強縫製部３８Ａは、挿入部３３の周り（周辺部分）に形成されて、固定布３０の挿入部３３を補強し、挿入部３３に沿って固定布３０を縫製することで固定布３０に形成される。補強縫製部３８Ａは、固定布３０の挿入部３３を囲む環状（図８では矩形状）に形成される。固定布３０は、補強縫製部３８Ａで矩形状に縫い合わされ、補強縫製部３８Ａにより、複数の布が一体化して補強される。補強縫製部３８Ａは、挿入部３３の周辺部分を補強し、挿入部３３の周りの強度を高くする。 The reinforcing sewing portion 38A is formed by sewing the fixed cloth 30 that is folded. The fixed cloth 30 is sewed by the reinforcement sewing portion 38A and reinforced by sewing. The reinforcing sewing portion 38 </ b> A is formed around (the peripheral portion) around the insertion portion 33, reinforces the insertion portion 33 of the fixed cloth 30, and sewes the fixed cloth 30 along the insertion portion 33 to fix the fixed cloth 30. Formed. The reinforcing sewing portion 38 </ b> A is formed in an annular shape (rectangular shape in FIG. 8) surrounding the insertion portion 33 of the fixed cloth 30. The fixed cloth 30 is sewn into a rectangular shape at the reinforcement sewing portion 38A, and the plurality of cloths are integrated and reinforced by the reinforcement sewing portion 38A. The reinforcement sewing portion 38 </ b> A reinforces the peripheral portion of the insertion portion 33 and increases the strength around the insertion portion 33.
　第１の縫製パターンでは、２つの縫製部３７Ａ、３８Ａは、固定布３０内で離して形成される。即ち、縫製部３７Ａ、３８Ａは、互いに独立しており、固定布３０に別個に形成される。固定布３０は２回縫製される。これに対し、第２の縫製パターンでは、固定布３０は１回だけ縫製される。 In the first sewing pattern, the two sewing portions 37 </ b> A and 38 </ b> A are formed apart in the fixed cloth 30. That is, the sewing portions 37 </ b> A and 38 </ b> A are independent from each other and are formed separately on the fixed cloth 30. The fixed cloth 30 is sewn twice. On the other hand, in the second sewing pattern, the fixed cloth 30 is sewn only once.
　図９は、固定布３０の第２の縫製パターンを示す図である。図９Ａは、縫製後の固定布３０を示す図である。図９Ｂ、図９Ｃは、固定布３０の縫製過程を示す図である。
　第２の縫製パターンの縫製部３７Ｂ、３８Ｂは、基本的に、第１の縫製パターンの縫製部３７Ａ、３８Ａと同じ縫製部である。ただし、第２の縫製パターンでは、図示のように、結合縫製部３７Ｂと補強縫製部３８Ｂを繋げて、一度の縫製により連続して形成する。そのため、縫製部３７Ｂ、３８Ｂの全体の形状を、一筆で書ける形状に設定する。結合縫製部３７Ｂと補強縫製部３８Ｂは、接する部分、又は、重複する部分を有する。 FIG. 9 is a diagram illustrating a second sewing pattern of the fixed cloth 30. FIG. 9A is a diagram showing the fixed cloth 30 after sewing. 9B and 9C are diagrams illustrating a sewing process of the fixed cloth 30. FIG.
The sewing parts 37B and 38B of the second sewing pattern are basically the same sewing parts as the sewing parts 37A and 38A of the first sewing pattern. However, in the second sewing pattern, as shown in the figure, the joint sewing portion 37B and the reinforcement sewing portion 38B are connected and formed continuously by one sewing. Therefore, the entire shape of the sewing portions 37B and 38B is set to a shape that can be written with a single stroke. The combined sewing portion 37B and the reinforcing sewing portion 38B have a contacting portion or an overlapping portion.
　第２の縫製パターンでは、縫製部３７Ｂ、３８Ｂの直線状部分が、基部３２で同じ位置に設けられる。補強縫製部３８Ｂは、結合縫製部３７Ｂの中間部分に重なるように形成される。固定布３０の縫製時には、縫製部３７Ｂ、３８Ｂの全体を、一筆書きのように連続して縫製する。その際、まず、結合縫製部３７Ｂ（図９Ｂ参照）の一端から縫製を開始して結合縫製部３７Ｂを所定位置まで形成したときに、縫製の方向を変更して、縫製する部分を、結合縫製部３７Ｂから補強縫製部３８Ｂに変更する。また、固定布３０を、挿入部３３を囲むように矩形状に縫製して、補強縫製部３８Ｂ（図９Ｃ参照）を形成する。続いて、結合縫製部３７Ｂの他端まで縫製して、縫製を終了する。 In the second sewing pattern, the linear portions of the sewing portions 37B and 38B are provided at the same position on the base portion 32. The reinforcing sewing portion 38B is formed so as to overlap the intermediate portion of the combined sewing portion 37B. At the time of sewing the fixed cloth 30, the entire sewing portions 37B and 38B are continuously sewn as in a single stroke. At that time, first, when sewing is started from one end of the combined sewing portion 37B (see FIG. 9B) and the combined sewing portion 37B is formed up to a predetermined position, the sewing direction is changed and the portion to be sewn is connected to the combined sewing portion. The portion 37B is changed to the reinforcement sewing portion 38B. Further, the fixed cloth 30 is sewn in a rectangular shape so as to surround the insertion portion 33 to form a reinforcing sewing portion 38B (see FIG. 9C). Subsequently, sewing is performed to the other end of the combined sewing portion 37B, and the sewing is finished.
　第２の縫製パターンでは、結合縫製部３７Ｂを途中まで形成した後、補強縫製部３８Ｂの全体を形成し、続いて、結合縫製部３７Ｂの残りの部分を形成する。固定布３０には、直線状の結合縫製部３７Ｂと矩形状の補強縫製部３８Ｂが１回の縫製により連続して形成される。これにより、固定布３０とエアバッグ２０が縫い合わされ、固定布３０がエアバッグ２０に取り付けられる。補強縫製部３８Ｂは、挿入部３３の周りに形成され、挿入部３３の周りで固定布３０を補強する。また、固定布３０が、結合した複数枚の布により形成されてエアバッグ２０に設けられる。その後、固定部材１０（図４参照）が固定布３０に取り付けられる。固定布３０は、エアバッグ２０に取り付けられた後、固定部材１０により車体に固定される。 In the second sewing pattern, after forming the combined sewing portion 37B halfway, the entire reinforcing sewing portion 38B is formed, and then the remaining portion of the combined sewing portion 37B is formed. On the fixed cloth 30, a linear joint sewing portion 37B and a rectangular reinforcement sewing portion 38B are continuously formed by one sewing. Thereby, the fixed cloth 30 and the airbag 20 are stitched together, and the fixed cloth 30 is attached to the airbag 20. The reinforcing sewing portion 38 </ b> B is formed around the insertion portion 33 and reinforces the fixed cloth 30 around the insertion portion 33. Further, the fixed cloth 30 is formed by a plurality of combined cloths and provided on the airbag 20. Thereafter, the fixing member 10 (see FIG. 4) is attached to the fixing cloth 30. The fixed cloth 30 is fixed to the vehicle body by the fixing member 10 after being attached to the airbag 20.
　以上説明したように、本実施形態では、固定布３０を所定の複数回折り畳んでエアバッグ２０に結合するため、固定布３０の取り扱いと管理が容易である。固定布３０は所定の複数回折り畳むだけでよいため、固定布３０の枚数を確認する手間も削減できる。また、複数の布からなる固定布３０を、エアバッグ２０に簡単に形成できる。固定布３０の枚数を間違えるのを防止できるため、固定布３０に必要な強度を確保できる。固定布３０の形成にかかる手間を削減できるため、固定布３０の形成に要する作業時間を短縮できる。 As described above, in this embodiment, the fixed cloth 30 is folded in a predetermined plurality of times and coupled to the airbag 20, so that the fixed cloth 30 can be easily handled and managed. Since the fixed cloth 30 only needs to be folded a predetermined number of times, it is possible to reduce the trouble of checking the number of the fixed cloths 30. Moreover, the fixed cloth 30 made of a plurality of cloths can be easily formed on the airbag 20. Since it is possible to prevent the number of the fixing cloths 30 from being mistaken, the strength necessary for the fixing cloth 30 can be ensured. Since the labor required for forming the fixed cloth 30 can be reduced, the work time required for forming the fixed cloth 30 can be shortened.
　固定布３０を複数の折り返し線Ｌ１～Ｌ３で順に折り返すことで、固定布３０を正確に折り畳むことができる。スリット４７を固定布３０の折り目の位置に形成したため、固定布３０を、容易かつ正確に折り畳むことができる。２つの縫製部３７Ｂ、３８Ｂを連続して形成するときには、縫製部３７Ｂ、３８Ｂの縫製を途切れさせずに１工程で行うことができる。その結果、縫製のための工程と時間を削減できるため、縫製の作業効率を向上できる。 The fixed cloth 30 can be folded accurately by sequentially folding the fixed cloth 30 along a plurality of folding lines L1 to L3. Since the slit 47 is formed at the fold position of the fixed cloth 30, the fixed cloth 30 can be easily and accurately folded. When the two sewing parts 37B and 38B are formed continuously, the sewing of the sewing parts 37B and 38B can be performed in one step without interruption. As a result, since the process and time for sewing can be reduced, the work efficiency of sewing can be improved.
　固定布３０を縫製によりエアバッグ２０に結合するため、固定布３０をエアバッグ２０に簡単に結合できる。固定布３０とエアバッグ２０を高い強度で結合することもできる。補強縫製部３８（３８Ａ、３８Ｂ）により固定布３０を補強するため、固定布３０の強度を高くできる。固定布３０の複数の布は、外力を単独で受けずに、共同して外力を受ける。その結果、固定布３０は、外力に対する強度が高くなり、破れ難くなる。挿入部３３の周りに形成した補強縫製部３８により挿入部３３を補強するときには、挿入部３３の周辺部分の強度を高くできる。これにより、固定布３０が挿入部３３の周りで破れ難くなるため、固定布３０が固定部材１０から外れるのを防止できる。補強縫製部３８を、挿入部３３を囲んで形成するときには、挿入部３３の周りの全体を補強できる。 Since the fixed cloth 30 is coupled to the airbag 20 by sewing, the fixed cloth 30 can be easily coupled to the airbag 20. The fixed cloth 30 and the airbag 20 can be combined with high strength. Since the fixed cloth 30 is reinforced by the reinforcing sewing portions 38 (38A, 38B), the strength of the fixed cloth 30 can be increased. The plurality of cloths of the fixed cloth 30 receive external force jointly without receiving external force alone. As a result, the fixed cloth 30 has high strength against external force and is not easily torn. When the insertion portion 33 is reinforced by the reinforcing sewing portion 38 formed around the insertion portion 33, the strength of the peripheral portion of the insertion portion 33 can be increased. Thereby, since the fixed cloth 30 is difficult to be broken around the insertion portion 33, it is possible to prevent the fixed cloth 30 from being detached from the fixed member 10. When the reinforcing sewing portion 38 is formed so as to surround the insertion portion 33, the entire area around the insertion portion 33 can be reinforced.
　結合縫製部３７（３７Ａ、３７Ｂ）（図８、図９参照）を固定布３０の基部３２に形成するときには、固定布３０を基部３２においてエアバッグ２０にしっかりと取り付けることができる。 When the joint sewing portion 37 (37A, 37B) (see FIGS. 8 and 9) is formed on the base 32 of the fixed cloth 30, the fixed cloth 30 can be firmly attached to the airbag 20 at the base 32.
　なお、固定布３０内で、凹部３５の底は、負荷が掛かり易い部分であり、結合縫製部３７は、少なくとも２つの凹部３５の底の下方部間に渡って形成する必要がある。即ち、結合縫製部３７は、凹部３５の底の下方部間に渡って形成されていればよく、凹部３５の底の下方部よりも外側には形成しなくてもよい。ただし、結合縫製部３７は、固定布３０への負荷に確実に対処するため、上記のように形成するのが好ましい。 In addition, in the fixed cloth 30, the bottom of the recessed part 35 is a part where load is easily applied, and the joint sewing part 37 needs to be formed between the lower parts of the bottoms of at least two recessed parts 35. In other words, the combined sewing portion 37 only needs to be formed between the lower portions of the bottom of the recess 35, and may not be formed outside the lower portion of the bottom of the recess 35. However, the combined sewing portion 37 is preferably formed as described above in order to reliably cope with the load on the fixed cloth 30.
　固定布３０の凹部３５は、固定布３０の突出部３１が固定部材１０により折り曲げられる際に、突出部３１を折り曲げ易くするために設けられている。従って、突出部３１の折り曲げ易さが問題とならないときには、固定布３０に凹部３５を設けなくてもよい。この場合には、例えば、突出部３１と基部３２の間の角部を曲線状に形成して、突出部３１と基部３２を曲線部で接続する。また、挿入部３３は、結合部２８の窪み２８Ａ（図５参照）の外に配置するようにしてもよい。固定布３０に凹部３５がなく、かつ、挿入部３３を窪み２８Ａの外に配置するときには、窪み２８Ａが不要になる。そのため、窪み２８Ａを結合部２８に形成しなくてもよい。 The concave portion 35 of the fixed cloth 30 is provided to facilitate bending of the protruding portion 31 when the protruding portion 31 of the fixed cloth 30 is bent by the fixing member 10. Accordingly, when the ease of bending the protruding portion 31 does not matter, the recessed portion 35 may not be provided in the fixed cloth 30. In this case, for example, the corner between the protruding portion 31 and the base portion 32 is formed in a curved shape, and the protruding portion 31 and the base portion 32 are connected by the curved portion. Further, the insertion portion 33 may be disposed outside the recess 28A (see FIG. 5) of the coupling portion 28. When the fixing cloth 30 has no recess 35 and the insertion portion 33 is disposed outside the recess 28A, the recess 28A is not necessary. Therefore, the recess 28 </ b> A does not need to be formed in the coupling portion 28.
　固定布３０は、上記した折り畳みの仕方に限定されず、他の仕方で折り畳むようにしてもよい。固定布３０は、折り畳んだ後に複数枚の重なり合う布からなるように形成すればよい。固定布３０は、エアバッグ２０の両面に同じ枚数ずつ配置してもよく、エアバッグ２０の各面で異なる枚数になるように配置してもよい。固定布３０は、エアバッグ２０の一方の面のみに配置してもよい。結合縫製部３７は、直線状以外の形状（例えば、曲線状や波状）に形成してもよい。補強縫製部３８は、矩形状以外の形状（例えば、円形状や多角形状）に形成してもよい。次に、他の実施形態の固定布について説明する。 The fixed cloth 30 is not limited to the above folding method, but may be folded in other ways. The fixed cloth 30 may be formed of a plurality of overlapping cloths after being folded. The same number of the fixing cloths 30 may be arranged on both surfaces of the airbag 20 or may be arranged so that the number of the fixing fabrics 30 is different on each surface of the airbag 20. The fixed cloth 30 may be disposed only on one surface of the airbag 20. The joint sewing portion 37 may be formed in a shape other than a straight shape (for example, a curved shape or a wave shape). The reinforcing sewing portion 38 may be formed in a shape other than a rectangular shape (for example, a circular shape or a polygonal shape). Next, a fixed fabric according to another embodiment will be described.
　図１０、図１１は、他の実施形態の固定布５０、５１を示す図である。図１０Ａ、図１１Ａは、折り畳み前の固定布５０、５１を示す展開図である。図１０Ｂ、図１１Ｂは、折り畳み後の固定布５０、５１を示す図である。
　図１０に示す固定布５０は、挿入部３３の形状のみが上記した固定布３０と相違し、固定布５０の挿入部３３は、所定幅のスリットからなる。固定布５０は、折り返し線Ｌ１～Ｌ３で折り畳んで、エアバッグ２０に結合する。 10 and 11 are diagrams showing fixed fabrics 50 and 51 according to another embodiment. FIG. 10A and FIG. 11A are development views showing the fixed fabrics 50 and 51 before folding. FIG. 10B and FIG. 11B are diagrams showing the fixed fabrics 50 and 51 after being folded.
The fixed cloth 50 shown in FIG. 10 is different from the above-described fixed cloth 30 only in the shape of the insertion portion 33, and the insertion portion 33 of the fixed cloth 50 includes a slit having a predetermined width. The fixed cloth 50 is folded at the folding lines L1 to L3 and coupled to the airbag 20.
　図１１に示す固定布５１は、スリット状の挿入部３３に替えて、円形孔からなる挿入部３９を有する。固定布５１は、挿入部３９を除いて、上記した固定布３０と同様に構成されている。固定布５１の挿入部３９は、ボルト等の固定部材（図示せず）が挿入される固定孔である。固定布５１は、折り返し線Ｌ１～Ｌ３で折り畳んで、エアバッグ２０に結合され、挿入部３９に挿入された固定部材により車体に固定される。 11 has an insertion portion 39 made of a circular hole in place of the slit-like insertion portion 33. The fixed cloth 51 is configured in the same manner as the fixed cloth 30 described above except for the insertion portion 39. The insertion portion 39 of the fixing cloth 51 is a fixing hole into which a fixing member (not shown) such as a bolt is inserted. The fixed cloth 51 is folded along the folding lines L1 to L3, coupled to the airbag 20, and fixed to the vehicle body by a fixing member inserted into the insertion portion 39.
　図１２、図１３は、固定布５１の２つの縫製パターンを示す図である。
　図１２に示す縫製パターンでは、上記した固定布３０（図９参照）と同様に、結合縫製部５２Ａと補強縫製部５３Ａを、一続きに繋げて、一度の縫製により連続して形成する。固定布５１は、結合縫製部５２Ａと補強縫製部５３Ａで連続して縫い合わされる。その際、縫製（図１２Ａ参照）を結合縫製部５２Ａの一端から開始し、結合縫製部５２Ａを所定位置まで形成した後、挿入部３９の全体を囲んで縫製する。これにより、環状の補強縫製部５３Ａ（図１２Ｂ参照）を、挿入部３９を囲むように挿入部３９の周りに形成する。続いて、結合縫製部５２Ａの他端まで縫製して縫製を終了する。結合縫製部５２Ａは、基部３２を横断せずに、固定布５１内に形成される。 12 and 13 are diagrams showing two sewing patterns of the fixed cloth 51. FIG.
In the sewing pattern shown in FIG. 12, similarly to the above-described fixed cloth 30 (see FIG. 9), the combined sewing portion 52A and the reinforcing sewing portion 53A are connected together and continuously formed by one-time sewing. The fixed cloth 51 is continuously sewn by the combined sewing portion 52A and the reinforcing sewing portion 53A. At that time, sewing (see FIG. 12A) is started from one end of the combined sewing portion 52A, and after forming the combined sewing portion 52A to a predetermined position, the entire insertion portion 39 is surrounded and sewn. Thus, an annular reinforcing sewing portion 53A (see FIG. 12B) is formed around the insertion portion 39 so as to surround the insertion portion 39. Subsequently, the sewing is finished by sewing up to the other end of the combined sewing portion 52A. The combined sewing portion 52A is formed in the fixed cloth 51 without traversing the base portion 32.
　図１３に示す縫製パターンでも、結合縫製部５２Ｂと補強縫製部５３Ｂを連続して形成する。ただし、補強縫製部５３Ｂは、挿入部３９の一部（ここでは下半分）を囲むように挿入部３９の周りに形成する。補強縫製部５３Ｂは、挿入部３９の一部に沿って形成されて挿入部３９の一部を囲み、挿入部３９の周りの一部を補強する。この補強縫製部５３Ｂのように、固定布の補強縫製部は、固定布の補強すべき部分に応じて様々な形状と位置に形成される。 In the sewing pattern shown in Fig. 13, the combined sewing portion 52B and the reinforcing sewing portion 53B are continuously formed. However, the reinforcing sewing portion 53B is formed around the insertion portion 39 so as to surround a part of the insertion portion 39 (here, the lower half). The reinforcing sewing portion 53 </ b> B is formed along a part of the insertion portion 39, surrounds a portion of the insertion portion 39, and reinforces a portion around the insertion portion 39. Like this reinforcement sewing part 53B, the reinforcement sewing part of a fixed cloth is formed in various shapes and positions according to the part which should be reinforced of a fixed cloth.
　図１４は、図１１に示す固定布５１と一部が異なる固定布５４を示す図である。図１４Ａは、折り畳み前の固定布５４を示す展開図である。図１４Ｂは、折り畳み後の固定布５４を示す図である。
　図１４に示す固定布５４は、凹部３５と貫通孔３６を有さない。固定布５４は、凹部３５と貫通孔３６以外は、上記した固定布５１と同様に構成されている。固定布５４は、縁を揃えて折り畳まれ、固定布５４とエアバッグ２０は、縁を揃えて重ね合わされる。 FIG. 14 is a diagram illustrating a fixed cloth 54 that is partially different from the fixed cloth 51 illustrated in FIG. 11. FIG. 14A is a development view showing the fixed cloth 54 before folding. FIG. 14B is a diagram illustrating the fixed fabric 54 after being folded.
The fixed cloth 54 shown in FIG. 14 does not have the concave portion 35 and the through hole 36. The fixed cloth 54 is configured in the same manner as the above-described fixed cloth 51 except for the concave portion 35 and the through hole 36. The fixed cloth 54 is folded with the edges aligned, and the fixed cloth 54 and the airbag 20 are overlapped with the edges aligned.
　次に、保護布を設けたエアバッグ２０について説明する。保護布は、固定部材１０（図３、図４参照）とエアバッグ２０の間に配置されて、固定部材１０からエアバッグ２０を保護する。エアバッグ２０には、上記した固定布３０（図５～図７参照）に加えて、保護布が取り付けられる。 Next, the airbag 20 provided with a protective cloth will be described. The protective cloth is disposed between the fixing member 10 (see FIGS. 3 and 4) and the airbag 20 to protect the airbag 20 from the fixing member 10. A protective cloth is attached to the airbag 20 in addition to the above-described fixed cloth 30 (see FIGS. 5 to 7).
　図１５は、保護布６０を示す図である。
　保護布６０は、図示のように、エアバッグ２０を保護する保護部６１と、エアバッグ２０へ結合される結合部（結合端）６２からなる。保護部６１は、矩形状をなし、結合部６２と一体に形成されている。結合部６２は、固定布３０の固定ピース４１～４６及び折り畳んだ固定布３０と同じ形状に形成されている。従って、結合部６２は、挿入部３３Ａと、凹部３５Ａと、貫通孔３６Ａとを有する。結合部６２は、固定布３０のエアバッグ２０への結合と同時に、エアバッグ２０に結合される。これにより、保護布６０がエアバッグ２０に取り付けられる。 FIG. 15 is a diagram showing the protective cloth 60.
As shown in the figure, the protective cloth 60 includes a protective portion 61 that protects the airbag 20 and a coupling portion (coupling end) 62 coupled to the airbag 20. The protection part 61 has a rectangular shape and is formed integrally with the coupling part 62. The coupling portion 62 is formed in the same shape as the fixed pieces 41 to 46 of the fixed cloth 30 and the folded fixed cloth 30. Accordingly, the coupling portion 62 includes the insertion portion 33A, the concave portion 35A, and the through hole 36A. The coupling portion 62 is coupled to the airbag 20 simultaneously with the coupling of the fixed cloth 30 to the airbag 20. Thereby, the protective cloth 60 is attached to the airbag 20.
　図１６は、エアバッグ２０へ取り付ける前後の保護布６０を示す図である。図１６Ａは固定布３０とエアバッグ２０を縫製する前の固定布３０と保護布６０を示し、図１６Ｂは、図１６Ａの矢視Ｘ５－Ｘ５線で見た固定布３０と保護布６０の断面図である。図１６Ｃは、固定布３０とエアバッグ２０を縫製した固定布３０と保護布６０を示す。
　図１６Ａ、図１６Ｂに示すように、固定布３０を折り畳んだ後、エアバッグ２０を固定布３０の間に配置する。保護布６０は、固定布３０をエアバッグ２０に結合する位置、即ち、エアバッグ２０の表基布２１側で、固定布３０とエアバッグ２０の間に配置する。その際、結合部６２を固定布３０に位置合わせしつつ、保護布６０を固定布３０とエアバッグ２０の間に挟み込む。 FIG. 16 is a view showing the protective cloth 60 before and after being attached to the airbag 20. 16A shows the fixed cloth 30 and the protective cloth 60 before the fixed cloth 30 and the airbag 20 are sewn, and FIG. 16B shows a cross section of the fixed cloth 30 and the protective cloth 60 taken along line X5-X5 in FIG. 16A. FIG. FIG. 16C shows the fixed cloth 30 and the protective cloth 60 obtained by sewing the fixed cloth 30 and the airbag 20.
As illustrated in FIGS. 16A and 16B, the airbag 20 is disposed between the fixed fabrics 30 after the fixed fabric 30 is folded. The protective cloth 60 is disposed between the fixed cloth 30 and the airbag 20 at a position where the fixed cloth 30 is coupled to the airbag 20, that is, on the surface base cloth 21 side of the airbag 20. At that time, the protective cloth 60 is sandwiched between the fixed cloth 30 and the airbag 20 while the connecting portion 62 is aligned with the fixed cloth 30.
　続いて、図１６Ｃに示すように、固定布３０とエアバッグ２０を縫製して結合する。固定布３０には、結合縫製部３７Ｂと補強縫製部３８Ｂを連続させて形成し、同時に、固定布３０、エアバッグ２０、及び、保護布６０を、結合縫製部３７Ｂで縫い合わせて、結合部６２をエアバッグ２０に結合する。このように、保護布６０は、固定布３０をエアバッグ２０に結合するときに、固定布３０とともにエアバッグ２０に取り付けられる。その後、固定部材１０（図３、図４参照）が、既に述べたと同様に、固定布３０とエアバッグ２０に取り付けられる。 Subsequently, as shown in FIG. 16C, the fixed cloth 30 and the airbag 20 are sewn and joined. The fixed cloth 30 is formed by connecting the joint sewing portion 37B and the reinforcement sewing portion 38B continuously. At the same time, the fixed cloth 30, the airbag 20, and the protective cloth 60 are sewn together by the joint sewing portion 37B, and the connection portion 62 is obtained. Is coupled to the airbag 20. Thus, the protective cloth 60 is attached to the airbag 20 together with the fixed cloth 30 when the fixed cloth 30 is coupled to the airbag 20. Thereafter, the fixing member 10 (see FIGS. 3 and 4) is attached to the fixing cloth 30 and the airbag 20 in the same manner as described above.
　図１７は、エアバッグ２０に取り付けた固定部材１０を示す図である。図１７Ａは、固定部材１０の斜視図である。図１７Ｂは、図１７Ａの矢印Ｘ６方向から見た固定部材１０とエアバッグ２０の側面図である。
　保護布６０は、図示のように、折り畳まれたエアバッグ２０の外面に配置される。固定部材１０をエアバッグ２０に取り付けたときに、保護布６０は、固定部材１０とエアバッグ２０の間に配置される。また、保護布６０は、エアバッグ２０の固定部材１０と対向する部分の全体に配置される。 FIG. 17 is a view showing the fixing member 10 attached to the airbag 20. FIG. 17A is a perspective view of the fixing member 10. FIG. 17B is a side view of the fixing member 10 and the airbag 20 as viewed from the direction of the arrow X6 in FIG. 17A.
The protective cloth 60 is disposed on the outer surface of the folded airbag 20 as shown in the figure. When the fixing member 10 is attached to the airbag 20, the protective cloth 60 is disposed between the fixing member 10 and the airbag 20. Further, the protective cloth 60 is disposed on the entire portion of the airbag 20 that faces the fixing member 10.
　エアバッグ２０に保護布６０を設けることで、固定部材１０からエアバッグ２０を保護でき、また固定部材１０のエッジがエアバッグ２０に接触するのも防止できる。従って、固定部材１０によりエアバッグ２０が損傷するのを防止できる。固定布３０の結合と同時に保護布６０をエアバッグ２０に取り付けるため、保護布６０を取り付けるための工程と作業時間を削減できる。なお、保護布６０は、折り畳んだ固定布３０の間、又は、固定布３０の一方の面に配置してもよい。この場合でも、保護布６０をエアバッグ２０に簡単に取り付けられる。２枚以上の保護布６０を、エアバッグ２０に設けるようにしてもよい。 By providing the airbag 20 with the protective cloth 60, the airbag 20 can be protected from the fixing member 10, and the edge of the fixing member 10 can also be prevented from coming into contact with the airbag 20. Therefore, the airbag 20 can be prevented from being damaged by the fixing member 10. Since the protective cloth 60 is attached to the airbag 20 at the same time as the fixed cloth 30 is joined, the process and work time for attaching the protective cloth 60 can be reduced. The protective cloth 60 may be disposed between the folded fixed cloths 30 or on one surface of the fixed cloth 30. Even in this case, the protective cloth 60 can be easily attached to the airbag 20. Two or more protective cloths 60 may be provided on the airbag 20.
　図１８は、他の実施形態の固定布５５と保護布６５を示す展開図である。
　保護布６５は、図示のように、固定布５５と一体に形成されている。固定布５５は、保護布６５を除いて、上記した固定布３０と同様に構成されている。保護布６５は、１つの固定ピース４６に形成された矩形状の布からなる。保護布６５は、固定布５５とともにエアバッグ２０に取り付けられる。 FIG. 18 is a development view showing a fixed cloth 55 and a protective cloth 65 according to another embodiment.
The protective cloth 65 is formed integrally with the fixed cloth 55 as shown in the figure. The fixed cloth 55 is configured in the same manner as the above-described fixed cloth 30 except for the protective cloth 65. The protective cloth 65 is made of a rectangular cloth formed on one fixed piece 46. The protective cloth 65 is attached to the airbag 20 together with the fixed cloth 55.
　図１９は、エアバッグ２０へ取り付ける前後の保護布６５を示す図である。図１９Ａは、固定布５５とエアバッグ２０を縫い合わせて、固定布５５をエアバッグ２０に結合する前の保護布６５を示し、図１９Ｂは、図１９Ａの矢視Ｘ７－Ｘ７線で見た固定布５５と保護布６５の断面図である。図１９Ｃは、固定布５５とエアバッグ２０を縫い合わせて、固定布５５をエアバッグ２０に結合した保護布６５を示す。
　図１９Ａ、図１９Ｂに示すように、固定布５５を折り畳んだ後、エアバッグ２０を固定布５５の間に配置する。固定布５５は、保護布６５が最も外側に位置するように折り畳まれる。保護布６５は、エアバッグ２０の表基布２１側に配置される。続いて、図１９Ｃに示すように、固定布５５とエアバッグ２０を縫い合わせて、固定布５５をエアバッグ２０に結合する。保護布６５は、固定布５５のエアバッグ２０への結合によりエアバッグ２０に取り付けられる。 FIG. 19 is a view showing the protective cloth 65 before and after being attached to the airbag 20. FIG. 19A shows the protective cloth 65 before the fixing cloth 55 and the airbag 20 are stitched together to join the fixing cloth 55 to the airbag 20, and FIG. 19B shows the fixing seen from the arrow X7-X7 line in FIG. 19A. It is sectional drawing of the cloth 55 and the protective cloth 65. FIG. FIG. 19C shows a protective cloth 65 in which the fixed cloth 55 and the airbag 20 are stitched together and the fixed cloth 55 is coupled to the airbag 20.
As shown in FIGS. 19A and 19B, after the fixed cloth 55 is folded, the airbag 20 is disposed between the fixed cloths 55. The fixed cloth 55 is folded so that the protective cloth 65 is located on the outermost side. The protective cloth 65 is disposed on the front base cloth 21 side of the airbag 20. Subsequently, as shown in FIG. 19C, the fixed cloth 55 and the airbag 20 are stitched together to couple the fixed cloth 55 to the airbag 20. The protective cloth 65 is attached to the airbag 20 by coupling the fixed cloth 55 to the airbag 20.
　保護布６５により、固定部材１０からエアバッグ２０を保護できる。また、保護布６５を固定布５５の結合と同時にエアバッグ２０に取り付けるため、保護布６５を取り付けるための工程と作業時間を削減できる。なお、固定布５５の折り畳み方を変えて、保護布６５を上記と異なる位置に配置してもよい。保護布６５は、固定ピース４６以外の固定ピース４１～４５に設けてもよい。保護布６５は、固定布５５の複数箇所に設けるようにしてもよい。
　なお、以上の実施形態の説明では、固定布３０は一体に繋がる複数の固定ピースを所定の複数回折り畳んだものであるとして説明したが、エアバッグ２０に重ね合わせた１枚の布から構成してもよい。この場合でも、その他の点では既に説明した固定布３０と同様である。即ち、固定布３０は、突出部３１及び挿入部３３を備え、図５、図１０Ｂ、図１１Ｂ、図１４Ｂの形状に形成することができ、図７、図８、図９に示すようにエアバッグ２０に取り付けでき、図１２、図１３のように縫製することができる。また、固定布３０は、エアバッグ２０の一方の面のみに配置してもよい。結合縫製部３７は、直線状以外の形状（例えば、曲線状や波状）に形成してもよい。補強縫製部３８は、矩形状以外の形状（例えば、円形状や多角形状）に形成してもよい。なお、この場合も固定布３０と保護布６０を一体に形成してもよい。 The airbag 20 can be protected from the fixing member 10 by the protective cloth 65. In addition, since the protective cloth 65 is attached to the airbag 20 at the same time as the fixed cloth 55 is joined, the process and work time for attaching the protective cloth 65 can be reduced. Note that the protective cloth 65 may be arranged at a position different from the above by changing how the fixed cloth 55 is folded. The protective cloth 65 may be provided on the fixed pieces 41 to 45 other than the fixed piece 46. The protective cloth 65 may be provided at a plurality of locations of the fixed cloth 55.
In the above description of the embodiment, it has been described that the fixed cloth 30 is a plurality of fixed pieces that are integrally connected and folded by a predetermined number of times. May be. Even in this case, the other points are the same as those of the fixed cloth 30 already described. That is, the fixed cloth 30 includes a protrusion 31 and an insertion portion 33, and can be formed in the shape of FIGS. 5, 10B, 11B, and 14B. As shown in FIGS. It can be attached to the bag 20 and can be sewn as shown in FIGS. Further, the fixed cloth 30 may be disposed only on one surface of the airbag 20. The joint sewing portion 37 may be formed in a shape other than a straight shape (for example, a curved shape or a wave shape). The reinforcing sewing portion 38 may be formed in a shape other than a rectangular shape (for example, a circular shape or a polygonal shape). In this case as well, the fixed cloth 30 and the protective cloth 60 may be integrally formed.
　１・・・エアバッグ装置、２・・・インフレータ、２Ａ・・・噴出口、３・・・連結ベルト、１０・・・固定部材、１１・・・取付部、１２・・・取付孔、２０・・・エアバッグ、２１・・・表基布、２２・・・裏基布、２３・・・ガス供給部、２４・・・外縁接合部、２５・・・膨張部、２６・・・非膨張部、２７・・・内部接合部、２８・・・結合部、２８Ａ・・・窪み、２９・・・貫通孔、３０・・・固定布、３１・・・突出部、３２・・・基部、３３・・・挿入部、３５・・・凹部、３６・・・貫通孔、３７・・・結合縫製部、３８・・・補強縫製部、３９・・・挿入部、４１～４６・・・固定ピース、４７・・・スリット、５０、５１・・・固定布、５２・・・結合縫製部、５３・・・補強縫製部、５４、５５・・・固定布、６０・・・保護布、６１・・・保護部、６２・・・結合部、６５・・・保護布、９０・・・車両、９１・・・側壁、９２・・・ルーフレール、９３・・・フロントピラー、９４・・・センターピラー、９５・・・前部ドア、９６・・・後部ドア、９７、９８・・・窓部。 DESCRIPTION OF SYMBOLS 1 ... Airbag apparatus, 2 ... Inflator, 2A ... Spout, 3 ... Connection belt, 10 ... Fixing member, 11 ... Mounting part, 12 ... Mounting hole, 20 ... Airbag, 21 ... Front base fabric, 22 ... Back base fabric, 23 ... Gas supply part, 24 ... Outer edge joint part, 25 ... Inflatable part, 26 ... Non Expansion part, 27 ... Internal joint part, 28 ... Coupling part, 28A ... Depression, 29 ... Through-hole, 30 ... Fixed cloth, 31 ... Projection part, 32 ... Base part 33 ... Insertion part, 35 ... Recess, 36 ... Through hole, 37 ... Combined sewing part, 38 ... Reinforcement sewing part, 39 ... Insertion part, 41-46 ... Fixed piece, 47 ... slit, 50, 51 ... fixed cloth, 52 ... combined sewing part, 53 ... reinforcing sewing part, 54, 55 ... fixed cloth, 6 ... Protective cloth, 61 ... Protective part, 62 ... Coupling part, 65 ... Protective cloth, 90 ... Vehicle, 91 ... Side wall, 92 ... Roof rail, 93 ... Front Pillar, 94 ... center pillar, 95 ... front door, 96 ... rear door, 97, 98 ... window.

Claims (15)

  1. 　車体に固定される固定布を有するエアバッグを備えたエアバッグ装置であって、
    　固定布が、所定の複数回折り畳まれてエアバッグに結合されたエアバッグ装置。     An airbag device including an airbag having a fixed cloth fixed to a vehicle body,
    An airbag device in which a fixed cloth is folded into a plurality of predetermined shapes and coupled to an airbag.
  2. 　請求項１に記載されたエアバッグ装置において、
    　固定布が、複数の折り返し線で順に折り返されて折り畳まれたエアバッグ装置。     In the airbag apparatus described in Claim 1,
    An airbag device in which a fixed cloth is folded in order by a plurality of folding lines.
  3. 　請求項１又は２に記載されたエアバッグ装置において、
    　固定布が、折り目の位置に形成されたスリットを有するエアバッグ装置。     In the airbag apparatus described in Claim 1 or 2,
    An airbag device in which the fixed cloth has a slit formed at the position of the fold.
  4. 　請求項１ないし３のいずれかに記載されたエアバッグ装置において、
    　固定布を車体に固定する固定部材と、固定部材からエアバッグを保護する保護布とを備え、
    　保護布が、固定布と一体に形成され、固定布のエアバッグへの結合によりエアバッグに取り付けられたエアバッグ装置。     In the airbag apparatus as described in any one of Claim 1 thru | or 3,
    A fixing member for fixing the fixing cloth to the vehicle body, and a protective cloth for protecting the airbag from the fixing member;
    An airbag device in which a protective cloth is formed integrally with a fixed cloth and attached to the airbag by coupling the fixed cloth to the airbag.
  5. 　請求項１ないし３のいずれかに記載されたエアバッグ装置において、
    　固定布を車体に固定する固定部材と、固定部材からエアバッグを保護する保護布とを備え、
    　保護布が、固定布をエアバッグに結合する位置に配置され、固定布をエアバッグに結合するときに、固定布とともにエアバッグに取り付けられたエアバッグ装置。     In the airbag apparatus as described in any one of Claim 1 thru | or 3,
    A fixing member for fixing the fixing cloth to the vehicle body, and a protective cloth for protecting the airbag from the fixing member;
    An airbag device in which a protective cloth is disposed at a position where the fixed cloth is coupled to the airbag, and is attached to the airbag together with the fixed cloth when the fixed cloth is coupled to the airbag.
  6. 　請求項１ないし５のいずれかに記載されたエアバッグ装置において、
    　固定布が、エアバッグに固定布を結合する結合縫製部を有するエアバッグ装置。     In the airbag apparatus as described in any one of Claim 1 thru | or 5,
    The airbag apparatus which has a joint sewing part with which a fixed cloth couple | bonds a fixed cloth with an airbag.
  7. 　請求項６に記載されたエアバッグ装置において、
    　固定布が、折り畳まれた固定布を縫製して形成された、固定布を補強する補強縫製部を有するエアバッグ装置。     In the airbag apparatus described in Claim 6,
    The airbag apparatus which has the reinforcement sewing part which reinforces a fixed cloth formed by sewing the fixed cloth by which the fixed cloth was folded.
  8. 　請求項７に記載されたエアバッグ装置において、
    　結合縫製部と補強縫製部が、連続して形成されたエアバッグ装置。     In the airbag apparatus described in Claim 7,
    An airbag device in which a combined sewing portion and a reinforcing sewing portion are continuously formed.
  9. 　請求項７又は８に記載されたエアバッグ装置において、
    　固定布が、挿入部に挿入される固定部材により車体に固定され、
    　補強縫製部が、挿入部の周りに形成されて固定布の挿入部を補強するエアバッグ装置。     In the air bag device according to claim 7 or 8,
    The fixing cloth is fixed to the vehicle body by a fixing member inserted into the insertion portion,
    An airbag device in which a reinforcing sewing portion is formed around an insertion portion to reinforce the insertion portion of the fixed cloth.
  10. 　車体に固定される固定布を有するエアバッグを備えたエアバッグ装置であって、
    　固定布が、エアバッグに固定布を結合する結合縫製部と、固定布を補強する補強縫製部とを有し、
    　結合縫製部と補強縫製部が、連続して形成されたエアバッグ装置。     An airbag device including an airbag having a fixed cloth fixed to a vehicle body,
    The fixed cloth has a combined sewing part that couples the fixed cloth to the airbag, and a reinforcing sewing part that reinforces the fixed cloth,
    An airbag device in which a combined sewing portion and a reinforcing sewing portion are continuously formed.
  11. 　請求項１０に記載されたエアバッグ装置において、
    　固定布に設けられた挿入部と、挿入部に挿入されて固定布を車体に固定する固定部材とを有し、
    　補強縫製部が、挿入部の周りに形成されて固定布の挿入部を補強するエアバッグ装置。     In the airbag apparatus described in Claim 10,
    An insertion portion provided in the fixed cloth, and a fixing member that is inserted into the insertion portion and fixes the fixed cloth to the vehicle body,
    An airbag device in which a reinforcing sewing portion is formed around an insertion portion to reinforce the insertion portion of the fixed cloth.
  12. 　請求項１０又は１１に記載されたエアバッグ装置において、
    　固定布が、エアバッグの縁部から突出する突出部と、エアバッグの縁部内の基部とを有し、
    　結合縫製部が、固定布の基部に形成されたエアバッグ装置。     In the air bag device according to claim 10 or 11,
    The fixed cloth has a protrusion protruding from the edge of the airbag and a base in the edge of the airbag;
    An airbag device in which a combined sewing portion is formed on a base portion of a fixed cloth.
  13. 　請求項１０ないし１２のいずれかに記載されたエアバッグ装置において、
    　結合縫製部と補強縫製部が、接する部分、又は、重複する部分を有するエアバッグ装置。     The airbag device according to any one of claims 10 to 12,
    The airbag apparatus which has a part which a joint sewing part and a reinforcement sewing part contact | connect, or an overlapping part.
  14. 　請求項１１ないし１３のいずれかに記載されたエアバッグ装置において、
    　補強縫製部が、挿入部を囲んで形成されたエアバッグ装置。     In the airbag apparatus as described in any one of Claim 11 thru | or 13,
    An airbag device in which a reinforcing sewing portion is formed surrounding the insertion portion.
  15. 　請求項１１ないし１３のいずれかに記載されたエアバッグ装置において、
    　補強縫製部が、挿入部の一部に沿って形成されたエアバッグ装置。     In the airbag apparatus as described in any one of Claim 11 thru | or 13,
    The airbag apparatus in which the reinforcement sewing part was formed along a part of insertion part.
PCT/JP2012/067728 2011-07-19 2012-07-11 Airbag device WO2013011900A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2011-158237 2011-07-19
JP2011-158239 2011-07-19
JP2011158237A JP2013023028A (en) 2011-07-19 2011-07-19 Airbag device
JP2011158239A JP2013023029A (en) 2011-07-19 2011-07-19 Airbag device

Publications (1)

Publication Number Publication Date
WO2013011900A1 true WO2013011900A1 (en) 2013-01-24

Family

ID=47558078

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/067728 WO2013011900A1 (en) 2011-07-19 2012-07-11 Airbag device

Country Status (1)

Country Link
WO (1) WO2013011900A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000033846A (en) * 1998-07-17 2000-02-02 Toyota Motor Corp Head protecting airbag unit
JP2003205817A (en) * 2002-01-15 2003-07-22 Toyota Motor Corp Air bag device
JP2003291771A (en) * 2002-04-01 2003-10-15 Nippon Plast Co Ltd Air bag device
JP2006168690A (en) * 2004-12-20 2006-06-29 Toyoda Gosei Co Ltd Head protection air bag
US20080284142A1 (en) * 2007-05-14 2008-11-20 Blake Cheal Airbag mounting assembly and method of manufacture
JP2009023439A (en) * 2007-07-18 2009-02-05 Nippon Plast Co Ltd Air bag device
JP2010030342A (en) * 2008-07-25 2010-02-12 Seiren Co Ltd Curtain airbag
JP2011500451A (en) * 2007-10-30 2011-01-06 タカタ株式会社 Airbag device for protecting passengers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000033846A (en) * 1998-07-17 2000-02-02 Toyota Motor Corp Head protecting airbag unit
JP2003205817A (en) * 2002-01-15 2003-07-22 Toyota Motor Corp Air bag device
JP2003291771A (en) * 2002-04-01 2003-10-15 Nippon Plast Co Ltd Air bag device
JP2006168690A (en) * 2004-12-20 2006-06-29 Toyoda Gosei Co Ltd Head protection air bag
US20080284142A1 (en) * 2007-05-14 2008-11-20 Blake Cheal Airbag mounting assembly and method of manufacture
JP2009023439A (en) * 2007-07-18 2009-02-05 Nippon Plast Co Ltd Air bag device
JP2011500451A (en) * 2007-10-30 2011-01-06 タカタ株式会社 Airbag device for protecting passengers
JP2010030342A (en) * 2008-07-25 2010-02-12 Seiren Co Ltd Curtain airbag

Similar Documents

Publication Publication Date Title
JP4760158B2 (en) Air bag and air bag device
JP5808983B2 (en) Airbag device
US7954844B2 (en) Curtain air bag device and method of producing the same
JP4946858B2 (en) Side airbag device
JP5839449B2 (en) Airbag device
US8398116B2 (en) Vehicle airbag and method of manufacturing the same
US6877768B2 (en) Cushion for protection of a vehicle occupant&#39;s head
JP5852407B2 (en) Airbag with vent hole
US11059446B2 (en) Airbag
JP2014054939A (en) Air bag, air bag device and air bag mounting structure
JP2013023028A (en) Airbag device
WO2009131045A1 (en) Airbag and airbag device
JP2004217184A (en) Airbag device for side collision
WO2013080922A1 (en) Airbag device
WO2013011900A1 (en) Airbag device
JP5105883B2 (en) Airbag device
JP7186108B2 (en) Curtain airbag and curtain airbag device
WO2016035457A1 (en) Air bag for front passanger&#39;s seat, and air bag device with same
JP5107835B2 (en) Airbag device for vehicle
JP2011189885A (en) Airbag
JP5407889B2 (en) Air bag and air bag device
WO2012176733A1 (en) Airbag device
JP2013023029A (en) Airbag device
JP5799002B2 (en) Curtain airbag device and method for manufacturing curtain airbag device
JP5016431B2 (en) Airbag

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: 12815293

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: 12815293

Country of ref document: EP

Kind code of ref document: A1