WO2012176733A1 - Dispositif de sac gonflable - Google Patents

Dispositif de sac gonflable Download PDF

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Publication number
WO2012176733A1
WO2012176733A1 PCT/JP2012/065504 JP2012065504W WO2012176733A1 WO 2012176733 A1 WO2012176733 A1 WO 2012176733A1 JP 2012065504 W JP2012065504 W JP 2012065504W WO 2012176733 A1 WO2012176733 A1 WO 2012176733A1
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WO
WIPO (PCT)
Prior art keywords
cloth
airbag
sewing
reinforcing
fixed
Prior art date
Application number
PCT/JP2012/065504
Other languages
English (en)
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
Application filed by 芦森工業株式会社 filed Critical 芦森工業株式会社
Publication of WO2012176733A1 publication Critical patent/WO2012176733A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/213—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

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 receives an occupant by an inflated and deployed airbag.
  • the airbag needs to be fixed to the vehicle body and deployed within a predetermined range in the vehicle.
  • an airbag apparatus in which a fixed cloth (fixed portion) fixed to a vehicle body is conventionally provided in an airbag is known (see Patent Document 1).
  • a fixed cloth is sewn, and two lower portions thereof are respectively attached to an airbag by sewing and fixed to a vehicle body to maintain the position of the airbag 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 its purpose is to increase the strength of the fixed fabric of the airbag, while reducing the steps and time for sewing the fixed fabric, and to improve the sewing work efficiency. It is to improve.
  • the present invention is an airbag device including an airbag having a fixed cloth fixed to a vehicle body, and the fixed cloth is sewn in an overlapping manner with a main body cloth formed integrally with the airbag.
  • the airbag device includes a reinforcing cloth, an attachment sewing part for attaching the reinforcing cloth to the main body cloth, and a reinforcement sewing part for reinforcing the fixed cloth, and the attachment sewing part and the reinforcing sewing part are continuously formed.
  • the strength of the airbag fixing cloth can be increased. Further, it is possible to improve the sewing work efficiency by reducing the process and time for sewing the fixed cloth.
  • FIG. 8B It is a figure which shows the airbag apparatus of this embodiment. It is a figure which shows the airbag expanded on the plane. It is a figure which shows the fixing member and the fixing cloth of an airbag. It is a figure which shows the fixing member attached to the airbag. It is a figure which decomposes
  • 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 cylindrical inflator 2, a fixing member 10, and an airbag (curtain airbag) 20.
  • the airbag device 1 is disposed inside a trim and a head lining (not shown) attached to the vehicle body.
  • the airbag 20 is folded and attached to the vehicle 90 so as to be inflated and deployed.
  • the airbag 20 is elongated and is disposed along the upper portion of the side wall 91.
  • 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.
  • the inflator 2 is inserted into the airbag 20 and generates gas in the airbag 20.
  • the inflator 2 is disposed above the center pillar 94 and attached to the roof rail 92.
  • the inflator 2 is fixed to the vehicle body by fixing means (not shown).
  • the inflator 2 In the event of a vehicle emergency or impact detection, the inflator 2 generates gas from a plurality of gas outlets 2 ⁇ / b> A and supplies the gas to the airbag 20. 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 a connection belt 23, a gas supply unit 24, and a plurality (six in FIG. 2) of fixed cloths 30.
  • An inflator 2 (not shown in FIG. 2) is inserted into the gas supply unit 24.
  • the front end of the airbag 20 is connected to the front pillar 93 by the connecting belt 23.
  • the tip of the connecting belt 23 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 25.
  • the outer edge joint portion 25 divides the airbag 20 and forms an inflatable portion 26 between the base fabrics 21 and 22.
  • the inflating part 26 is inflated by the gas generated by the inflator 2.
  • the outer edge joint portion 25 defines the outer edge shape of the inflating portion 26.
  • the base fabrics 21 and 22 are joined by sewing and adhesion at the outer edge joint portion 25. That is, the base fabrics 21 and 22 are sewn one or more times along the outer edge joint portion 25, 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 25.
  • the base fabrics 21 and 22 may be joined only by sewing at the outer edge joint portion 25.
  • a front inflating portion 26A, a rear inflating portion 26B, and a connecting inflating portion 26C are formed by the outer edge joint portion 25.
  • the inflating portions 26A to 26C each have a rectangular shape, and constitute the inflating portion 26 of the airbag 20 as a whole.
  • the front inflating portion 26 ⁇ / b> A is disposed forward in the airbag 20.
  • the rear inflating part 26 ⁇ / b> B is disposed rearward in the airbag 20.
  • the connecting expansion part 26C connects the front expansion part 26A and the rear expansion part 26B.
  • a non-expanding portion 27 is provided between the three expanding portions 26A to 26C.
  • the airbag 20 has a plurality (four in FIG. 2) of internal joint portions 28 in the inflatable portion 26.
  • the base fabrics 21 and 22 are joined at the inner joint portion 28 in the same manner as the outer edge joint portion 25.
  • the tip of the internal joint portion 28 is joined in an annular shape within the expansion portion 26.
  • the plurality of internal joints 28 are arranged apart from each other in the front-rear direction, and form a gas circulation part and an air chamber in the expansion part 26.
  • the gas supply unit 24 is an opening for supplying gas into the airbag 20.
  • the gas supply unit 24 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 24.
  • the edge portions of the base fabrics 21 and 22 are continuously joined from the outer edge joint portion 25 except for the insertion port 24A at the tip.
  • the gas supply part 24 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 24 is connected to the outside of the airbag 20 through the insertion port 24A at one end, and is connected to the inside of the inflating unit 26 at the other end.
  • the inflator 2 is inserted into the gas supply unit 24 from the insertion port 24 ⁇ / b> A and is disposed in the airbag 20.
  • the gas supply unit 24 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 24 and supplies the gas into the airbag 20.
  • the inflatable portion 26 is inflated by the 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 26A and is supplied from the connection expansion part 26C to the rear expansion part 26B. Thereby, the airbag 20 is inflated and deployed so as to cover the side wall 91 and closes the windows 97 and 98.
  • the airbag 20 receives the front and rear occupants and protects the occupant's 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 integrally formed on the upper edge portion of the airbag 20, and is fixed to each portion of the vehicle body by the fixing member 10 (see FIG. 1). Fixed.
  • 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 by sewing portions 37 and 38 (shown by broken lines) as described later.
  • FIG. 4 is a view showing the fixing member 10 attached to the airbag 20.
  • FIG. 4A is a perspective view of the fixing member 10.
  • 4B is a side view of the fixing member 10 and the airbag 20 as viewed from the direction of the arrow X 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. As shown in FIG. 3A, the fixing member 10 is composed of a plate-like member bent at a plurality of locations. 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.
  • 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 straight slit and 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 fixed cloth 30 is fixed to the vehicle body by the fixing member 10 inserted into the insertion portion 33.
  • the fixed cloth 30 will be described in detail.
  • FIG. 5 is an exploded view of the fixed cloth 30.
  • the fixed cloth 30 includes a main body cloth 34 and a reinforcing cloth 40 which are integrated by sewing as shown in the figure.
  • the main body cloth 34 is an integral cloth integrally formed with the airbag 20, and has rectangular cloths respectively formed on the base cloths 21 and 22 of the airbag 20.
  • the fixed cloth 30 has two main body cloths 34 that overlap each other.
  • the main body cloth 34 includes a protruding portion 31A, a base portion 32A, an insertion portion 33A, two concave portions 35A, and two through holes 36A.
  • the concave portion 35A and the through hole 36A are formed in the base portion 32A on both sides of the protruding portion 31A.
  • the reinforcing cloth 40 is made of one or a plurality of cloths separate from the airbag 20.
  • the reinforcing cloth 40 is formed in the same shape as the main body cloth 34 by the base cloth, and has the protruding portion 31B, the base portion 32B, the insertion portion 33B, the concave portion 35B, and the through hole 36B, as with the main body cloth 34.
  • the reinforcing cloth 40 is superimposed on the main body cloth 34 and is sewn to the main body cloth 34 at a predetermined position. At that time, the main body cloth 34 and the reinforcing cloth 40 are accurately overlapped by aligning the positions of the recesses 35A and 35B and the through holes 36A and 36B.
  • the insertion portions 33 ⁇ / b> A and 33 ⁇ / b> B are disposed at the same position and penetrate the main body cloth 34 and the reinforcing cloth 40.
  • the reinforcing cloth 40 is coupled to the main body cloth 34 by sewing.
  • the reinforcing cloth 40 reinforces the main body cloth 34 and increases the strength of the fixed cloth 30.
  • the recesses 35 (35A, 35B) are provided to facilitate bending of the protrusion 31 when the protrusion 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.
  • 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.
  • the reinforcing cloth 40 is made of a plurality of overlapping cloths having the same shape. Moreover, the two reinforcing cloths 40 are formed so as to be connected by the protruding portion 31B, and are folded at the boundary of the protruding portion 31B.
  • the main body cloth 34 is disposed between the plurality of folded reinforcing cloths 40.
  • the two main body cloths 34 are sandwiched between the reinforcing cloths 40.
  • the fixed cloth 30 is composed of a plurality of cloths including two main body cloths 34 and a plurality of reinforcing cloths 40. The reinforcing cloth 40 is overlapped with the main body cloth 34 and sewn, and the main body cloth 34 and the reinforcing cloth 40 are joined.
  • FIG. 6 is a diagram illustrating a sewing pattern of the main body cloth 34 and the reinforcing cloth 40.
  • FIG. 6A is a diagram illustrating the fixed cloth 30 after sewing.
  • 6B and 6C are diagrams illustrating a sewing process of the fixed cloth 30.
  • the fixed cloth 30 has two kinds of sewing parts 37 and 38, that is, an attaching sewing part 37 for attaching the reinforcing cloth 40 to the main body cloth 34 and a reinforcing sewing part 38 for reinforcing the fixing cloth 30. Sewing is performed by the attachment sewing portion 37 and one reinforcing sewing portion 38.
  • the main body cloth 34 and the reinforcing cloth 40 are overlapped and sewn together at the sewing portions 37 and 38, whereby the main body cloth 34 and the reinforcing cloth 40 are joined to form the fixed cloth 30 on the airbag 20.
  • the attachment sewing portion 37 is formed linearly across the base portion 32 of the fixed cloth 30, whereby the entire base portion 32 is sewn.
  • the attachment sewing portion 37 is formed on the base cloth 32 and the base portion 32 of the reinforcement cloth 40 and is formed to the outside of the reinforcement cloth 40, and the reinforcement cloth 40 is attached to the main body cloth 34 by sewing at the attachment sewing section 37.
  • the bottom of the recessed part 35 is a part where load is easily applied, and the attachment sewing part 37 needs to be formed across the lower part of the bottom of the at least two recessed parts 35. That is, the attachment sewing portion 37 may be formed across the lower portion of the bottom of the concave portion 35, and may not be formed outside the lower portion of the bottom of the concave portion 35.
  • the attachment sewing portion 37 is preferably formed as described above in order to reliably cope with the load on the fixed cloth 30.
  • the reinforcing sewing portion 38 is formed on the fixed fabric 30 by sewing the fixed fabric 30 along the insertion portion 33, and is formed in an annular shape (rectangular shape in FIG. 6) surrounding the insertion portion 33 of the fixed fabric 30.
  • the insertion part 33 of the cloth 30 is reinforced.
  • the reinforcing cloth 40 and the main body cloth 34 are sewn into a rectangular shape by the reinforcing sewing portion 38. That is, the fixed cloth 30 is reinforced by the reinforcing sewing portion 38 by integrating the reinforcing cloth 40 and the main body cloth 34.
  • the reinforcement sewing portion 38 reinforces the peripheral portion of the insertion portion 33 and increases the strength around the insertion portion 33.
  • the two sewing parts 37 and 38 are not formed separately on the fixed cloth 30, but are formed integrally. That is, the attachment sewing part 37 and the reinforcement sewing part 38 are connected and formed continuously by one sewing. Since the fixed cloth 30 is joined by one sewing, the entire shape of the sewing portions 37 and 38 is set to a shape that can be written with one stroke.
  • the attachment sewing part 37 and the reinforcement sewing part 38 have a contact part or an overlapping part.
  • the linear portions of the sewing portions 37 and 38 are provided at the same position on the base portion 32.
  • the reinforcement sewing portion 38 is formed so as to overlap the intermediate portion of the attachment sewing portion 37.
  • the entire sewn portions 37 and 38 are sewn continuously as in a single stroke.
  • sewing is started from one end of the attachment sewing portion 37 (see FIG. 6B), and when the attachment sewing portion 37 is formed to a predetermined position, the sewing direction is changed and the portion to be sewn is attached to the sewing The portion 37 is changed to the reinforcement sewing portion 38.
  • the fixed cloth 30 is sewn in a rectangular shape so as to surround the insertion portion 33, thereby forming a reinforcing sewing portion 38 (see FIG. 6C). Subsequently, the other end of the attachment sewing portion 37 is sewn, and the sewing is finished.
  • the entire reinforcement sewing portion 38 is formed, and subsequently, the remaining portion of the attachment sewing portion 37 is formed. That is, a linear attachment sewing portion 37 and a rectangular reinforcement sewing portion 38 are continuously formed on the fixed cloth 30 by one sewing. Thereby, the main body cloth 34 and the reinforcing cloth 40 are sewn together, and the reinforcing cloth 40 is attached to the main body cloth 34.
  • 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 reinforcing cloth 40 is fixed to the vehicle body together with the main body cloth 34 by the fixing member 10 after being attached to the main body cloth 34.
  • FIG. 7 is a diagram illustrating an example of the fixed cloth 30 formed by separating the two sewing portions 37 and 38.
  • the sewing portions 37 and 38 are separately formed on the fixed cloth 30, two steps are required for sewing the fixed cloth 30.
  • the two sewing parts 37 and 38 are formed continuously. Therefore, the sewing of the sewing parts 37 and 38 can be performed in one step without being interrupted. Since the process and time for sewing the fixed cloth 30 can be reduced, the work efficiency of sewing can be improved.
  • the strength of the fixed cloth 30 can be increased.
  • the reinforcing cloth 40 is attached to the main body cloth 34 by the attachment sewing portion 37, and the fixed cloth 30 is reinforced by the reinforcing sewing portion 38. Therefore, the reinforcing cloth 40 and the main body cloth 34 can be coupled with high strength.
  • the strength of the fixed cloth 30 can be further increased by reinforcing the reinforcement sewing portion 38.
  • 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 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.
  • the reinforcement sewing portion 38 so as to surround the insertion portion 33, the entire periphery of the insertion portion 33 can be reinforced.
  • the attachment sewing portion 37 is formed on the base cloth 32 and the base portion 32 of the reinforcing cloth 40, the reinforcing cloth 40 can be firmly attached to the main body cloth 34 at the base portion 32.
  • the force applied to the fixed cloth 30 acts on the base 32 where the main body cloth 34 and the reinforcing cloth 40 are sewn. Therefore, it is possible to prevent the protruding portion 31 of the fixed cloth 30 or the base of the protruding portion 31 from being damaged by an external force.
  • the reinforcing cloth 40 may be composed of a single cloth superposed on the main body cloth 34, or may be composed of a plurality of cloths. Further, the same number of reinforcing cloths 40 may be arranged on both surfaces of the main body cloth 34, or different numbers may be arranged on each surface of the main body cloth 34.
  • the main body cloth 34 may be disposed on one surface of the reinforcing cloth 40 without being disposed between the reinforcing cloths 40.
  • the attachment 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. 8 is a diagram showing reinforcing cloths 50 to 52 according to another embodiment.
  • the insertion portion 33B of the reinforcing cloth 50 is formed of a slit having a predetermined width.
  • the insertion portion 33A of the main body cloth 34 is formed in the same shape as the insertion portion 33B of the reinforcing cloth 50.
  • the reinforcing cloth 50 and the main body cloth 34 are overlapped and sewn by the sewing portions 37 and 38.
  • the 8B has a insertion portion 39 made of a circular hole instead of the slit-shaped insertion portion 33B.
  • the reinforcing cloth 51 is configured in the same manner as the above-described reinforcing cloth 40 except for the insertion portion 39.
  • the insertion portion 39 of the reinforcing cloth 51 is a fixing hole into which a fixing member (not shown) such as a bolt is inserted.
  • An insertion portion (fixed hole) having the same shape as the insertion portion 39 is formed in the main body cloth 34 in place of the insertion portion 33A.
  • the reinforcing cloth 52 is configured in the same manner as the reinforcing cloth 51 shown in FIG. 8B except for the recess 35B and the through hole 36B.
  • the reinforcing cloth 52 and the main body cloth 34 are overlapped with their edges aligned, and are sewn by the sewing portions 37 and 38.
  • FIG. 9 and 10 are diagrams showing two sewing patterns of the reinforcing cloth 51.
  • FIG. 9 In the sewing pattern shown in FIG. 9, as in the case of the reinforcing cloth 40 (see FIG. 6), the attachment sewing portion 53 ⁇ / b> A and the reinforcing sewing portion 54 ⁇ / b> A are continuously connected and formed continuously by one sewing.
  • the reinforcing cloth 51 and the main body cloth 34 are continuously sewn by the attachment sewing portion 53A and the reinforcing sewing portion 54A.
  • sewing (refer FIG. 9A) is started from the end of the attachment sewing part 53A. After the attachment sewing portion 53A is formed to a predetermined position, the entire insertion portion 39 is surrounded and sewn.
  • annular reinforcing sewing portion 54 ⁇ / b> A (see FIG. 9B) is formed around the insertion portion 39 so as to surround the insertion portion 39. Subsequently, sewing is performed to the other end of the attachment sewing portion 53A, and the sewing is finished.
  • the attachment sewing portion 53A is formed in the reinforcing cloth 51 without traversing the base portion 32B.
  • the attachment sewing portion 53B and the reinforcement sewing portion 54B are continuously formed.
  • the reinforcing sewing portion 54B 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 part 54 ⁇ / b> B is formed along a part of the insertion part 39 and surrounds a part of the insertion part 39.
  • the reinforcement sewing portion 54 ⁇ / b> B reinforces a part around the insertion portion 39.
  • the reinforcement sewing portion of the fixed cloth 30 is formed in various shapes and positions according to the portion of the fixed cloth 30 to be reinforced.

Abstract

La présente invention concerne un dispositif de sac gonflable qui réduit le temps et le nombre d'étapes nécessaires pour coudre un tissu fixe du dispositif de sac gonflable tout en augmentant la résistance du tissu fixe. Le présent dispositif de sac gonflable (20) comprend un tissu fixe (30) fixé à la carrosserie du véhicule. Le tissu fixe (30) est muni d'un tissu (34) de corps principal, d'un tissu (40) de renfort, d'une partie cousue (37) de liaison et d'une partie cousue (38) de renfort. Le tissu (34) de corps principal est formé d'un seul tenant avec le dispositif de sac gonflable (20), et le tissu (40) de renfort est cousu de façon à chevaucher le tissu (34) de corps principal. La partie cousue (37) de liaison relie le tissu (40) de renfort au tissu (34) de corps principal, et la partie cousue (38) de renfort renforce le tissu fixe (30). La partie cousue (37) de liaison et la partie cousue (38) de renfort sont formées de manière continue.
PCT/JP2012/065504 2011-06-24 2012-06-18 Dispositif de sac gonflable WO2012176733A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011141100A JP2013006540A (ja) 2011-06-24 2011-06-24 エアバッグ装置
JP2011-141100 2011-06-24

Publications (1)

Publication Number Publication Date
WO2012176733A1 true WO2012176733A1 (fr) 2012-12-27

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Application Number Title Priority Date Filing Date
PCT/JP2012/065504 WO2012176733A1 (fr) 2011-06-24 2012-06-18 Dispositif de sac gonflable

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JP (1) JP2013006540A (fr)
WO (1) WO2012176733A1 (fr)

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JP2003205817A (ja) * 2002-01-15 2003-07-22 Toyota Motor Corp エアバッグ装置
JP2003291771A (ja) * 2002-04-01 2003-10-15 Nippon Plast Co Ltd エアバッグ装置
JP2004262399A (ja) * 2003-03-04 2004-09-24 Nippon Plast Co Ltd エアバッグ装置
JP2006168690A (ja) * 2004-12-20 2006-06-29 Toyoda Gosei Co Ltd 頭部保護エアバッグ

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JPH0811655A (ja) * 1994-06-28 1996-01-16 Nippon Plast Co Ltd エアバッグ
JP2000033846A (ja) * 1998-07-17 2000-02-02 Toyota Motor Corp 頭部保護エアバッグ装置
JP3838645B2 (ja) * 2003-04-14 2006-10-25 本田技研工業株式会社 乗員拘束装置
JP4966569B2 (ja) * 2006-03-20 2012-07-04 日本プラスト株式会社 エアバッグ
JP5155762B2 (ja) * 2008-07-25 2013-03-06 セーレン株式会社 カーテンエアバッグ

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