WO2021136090A1 - 用于车辆的帘式气囊 - Google Patents

用于车辆的帘式气囊 Download PDF

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Publication number
WO2021136090A1
WO2021136090A1 PCT/CN2020/139431 CN2020139431W WO2021136090A1 WO 2021136090 A1 WO2021136090 A1 WO 2021136090A1 CN 2020139431 W CN2020139431 W CN 2020139431W WO 2021136090 A1 WO2021136090 A1 WO 2021136090A1
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WO
WIPO (PCT)
Prior art keywords
airbag
belt
shaped member
main body
airbag main
Prior art date
Application number
PCT/CN2020/139431
Other languages
English (en)
French (fr)
Inventor
魏丽燕
靳恩伟
Original Assignee
奥托立夫开发公司
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 奥托立夫开发公司 filed Critical 奥托立夫开发公司
Priority to EP20908973.9A priority Critical patent/EP4086123A4/en
Priority to US17/757,994 priority patent/US11794682B2/en
Priority to JP2022531465A priority patent/JP7454670B2/ja
Priority to KR1020227025920A priority patent/KR20220115106A/ko
Publication of WO2021136090A1 publication Critical patent/WO2021136090A1/zh

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    • 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
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/237—Inflatable members characterised by the way they are folded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B60R2021/23504—Inflatable members characterised by their material characterised by material
    • B60R2021/23528—Metal
    • 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
    • B60R21/235—Inflatable members characterised by their material

Definitions

  • the invention relates to a curtain airbag for a vehicle.
  • the curtain airbag is installed on the roof of a motor vehicle. When deployed, the curtain airbag abuts the side window of the vehicle to protect the head of the occupant in the event of a side impact or a rollover accident. When stored, the curtain airbag can be rolled and/or folded into a long strip. However, the elongated curtain airbag is easily twisted, which makes it difficult to align with the installation part of the vehicle on the one hand, and may affect the deployment of the curtain airbag on the other hand.
  • a marking line extending in the longitudinal direction of the curtain airbag is provided on the curtain airbag to determine whether the curtain airbag is twisted. If bending of the marking line is observed, it is determined that the curtain airbag is twisted.
  • this largely relies on human visual judgment, leading to the problem of missed detection.
  • the present invention provides a curtain airbag capable of reliably grasping whether the curtain airbag is twisted.
  • the present invention provides a curtain airbag for a vehicle, which includes: an airbag body defining an air chamber; and a belt-shaped member abutting on the airbag body, wherein the belt-shaped member can conduct electricity and is configured to be in the airbag When the main body is twisted, it deforms or breaks, which changes the resistance of the band-shaped member.
  • the airbag main body can be wound and/or folded into a long strip shape extending along the length direction of the airbag main body, and the belt-shaped member extends along the length direction of the airbag main body.
  • the belt-shaped member is provided with a plurality of slits spaced apart from each other.
  • the belt-shaped member has opposite first and second side edges extending along the length of the airbag body, and the plurality of slits includes: a plurality of first slits extending from the first side edge And a plurality of second slits extending inwardly from the second side edge along the width direction of the belt-shaped member, wherein the first slit and the second slit are in the length direction of the airbag body Arrange in turn alternately.
  • the belt-shaped member is located at an appropriate position on the outer surface of the elongated airbag body, so that when the airbag body is installed on a vehicle, it is convenient to detect the resistance of the belt-shaped member.
  • the belt-shaped member extends along the entire length of the airbag main body.
  • the belt-shaped member is a metal, a conductive polymer, a conductive film, or a conductive non-woven fabric.
  • the airbag main body includes two airbag main pieces, and the two airbag main pieces are stitched together at the edge area to enclose the air chamber, wherein,
  • the belt-shaped member is attached to the airbag body by bonding and/or stitching.
  • the airbag main body is integrally formed, and the belt-shaped member is attached to the airbag main body by bonding.
  • the belt-shaped member abutting on the airbag body will deform or even break accordingly.
  • the resistance of the band-shaped member changes. Therefore, by measuring the change in the resistance of the belt-shaped member, it is possible to detect whether the airbag body is twisted. In this way, the torsion of the airbag body can be reliably detected without missing detection.
  • Fig. 1 is a plan view showing a curtain airbag for a vehicle according to an embodiment of the present invention.
  • Fig. 2 is a partial enlarged view showing a belt-shaped member according to an embodiment of the present invention.
  • Fig. 3 is a schematic diagram showing changes in resistance of belt-shaped members with different elongation rates after deformation.
  • Fig. 4a is a partial enlarged view showing a curtain airbag according to an embodiment of the present invention.
  • Fig. 4b is a partial cross-sectional view showing an embodiment of the curtain airbag taken along the line A-A in Fig. 4a.
  • Fig. 4c is a partial cross-sectional view showing another embodiment of the curtain airbag taken along the line A-A in Fig. 4a.
  • Fig. 5 is a cross-sectional view showing a curtain airbag according to still another embodiment of the present invention.
  • Fig. 1 is a plan view showing a curtain airbag for a vehicle according to an embodiment of the present invention.
  • the curtain airbag 1 includes an airbag main body 10 and a belt-shaped member 20.
  • the airbag body 10 is used to define an air chamber, and the air chamber may receive gas from a gas generator (not shown).
  • the airbag main body 10 may be rolled and/or folded into a long strip shape extending along the length direction of the airbag main body 10 so that the airbag main body 10 is in a stored state.
  • the airbag main body 10 in the stored state may be installed on the roof of the vehicle.
  • the band member 20 is attached to the airbag main body 10 and can conduct electricity.
  • the band member 20 is configured to be deformed or broken when the airbag main body 10 is twisted, so that its own electrical resistance changes.
  • the resistance R1 of the belt-shaped member 20 is detected. Then, after the airbag main body 10 is installed on the roof of the vehicle, the resistance R2 of the belt-shaped member 20 is detected. If R2 is greater than R1, it is determined that the airbag body 10 is twisted. If R2 is substantially equal to R1, it is determined that the airbag body 10 is not twisted.
  • the belt-shaped member 20 abutting on the airbag main body 10 will deform or even break accordingly.
  • the electrical resistance of the belt-shaped member 20 changes. Specifically, when the belt-shaped member 20 is deformed, its resistance may increase. When the band member 20 is broken, its electrical resistance becomes infinite. Therefore, by measuring the change in the resistance of the belt-shaped member 20, it is possible to detect whether the airbag body 10 is twisted. In this way, the torsion of the airbag body 10 can be reliably detected without missing detection.
  • the belt-shaped member 20 extends along the length direction of the airbag main body 10.
  • the orientation of the belt-shaped member 20 is not limited to this.
  • the belt-shaped member 20 may extend obliquely to the longitudinal direction of the airbag main body 10.
  • Fig. 2 is a partial enlarged view showing a belt-shaped member according to an embodiment of the present invention. Only a part of the belt-shaped member 20 is shown in FIG. 2, and the remaining part of the belt-shaped member 20 has the same configuration as that shown in FIG. 2. As shown in Fig. 2, the belt-shaped member 20 is provided with a plurality of slits spaced apart from each other. In this case, when the airbag main body 10 is twisted, the belt-shaped member 20 is likely to be broken, and it is not easy to fall off from the airbag main body 10.
  • the belt-shaped member 20 has opposite first and second side edges extending along the length direction of the airbag main body 10.
  • the band member 20 has a plurality of first slits 21 and a plurality of second slits 22.
  • the first slit 21 extends inwardly from the first side edge in the width direction of the belt-shaped member 20, and the second slit 22 extends inwardly from the first side edge in the width direction of the belt-shaped member 20.
  • the first slits 21 and the second slits 22 are alternately arranged in order in the length direction of the airbag main body 10.
  • first slit 21 and the second slit 22 may not crack from the side edge of the belt-shaped member 20 but crack inside the belt-shaped member 20.
  • first slit 21 and the second slit 22 may extend obliquely to the width direction of the belt-shaped member 20.
  • the plurality of first slits 21 are arranged at equal intervals along the length direction of the airbag main body 10, and the plurality of second slits 22 are arranged at equal intervals along the length direction of the airbag main body 10.
  • the distance between two adjacent first slits 21 is equal to the distance between two adjacent second slits 22.
  • Each second slit 22 is centrally located between two adjacent first slits 21.
  • the lengths of the multiple first slits 21 are the same, the lengths of the multiple second slits 22 are the same, and the lengths of the multiple first slits 21 and the multiple second slits 22 are the same.
  • the sum of the length of the first slit 21 and the length of the second slit 22 is smaller than the width of the band member 20.
  • the belt-shaped member 20 is located at an appropriate position on the outer surface of the elongated airbag body 10, so that when the airbag body 10 is installed on a vehicle, it is convenient to detect the resistance of the belt-shaped member 20.
  • the installer can easily access the belt-shaped member 20 to detect the electrical resistance of the belt-shaped member 20.
  • the airbag main body 10 is inflated and deployed, one side of the airbag main body 10 faces the vehicle cabin, and the other side of the airbag main body 10 faces the vehicle window.
  • the band member 20 is generally provided on the side of the airbag main body 10 facing the vehicle cabin.
  • the band member 20 extends along the entire length of the airbag main body 10.
  • the belt-shaped member 20 may be a metal, a conductive polymer, a conductive film, or a conductive non-woven fabric.
  • the belt-shaped member 20 may be another material whose electrical resistance changes when deformed.
  • FIG. 3 is a schematic diagram showing the change in resistance of the belt-shaped member 20 with different elongation rates after deformation. As shown in Figure 3, the smaller the elongation, the greater the resistance change.
  • the elongation rate of the band member 20 is preferably small. In this case, when the airbag main body 10 is twisted, the belt-shaped member 20 is liable to be broken.
  • Fig. 4a is a partial enlarged view showing a curtain airbag according to an embodiment of the present invention
  • Fig. 4b is a cross-sectional view showing one embodiment of the curtain airbag taken along the line A-A in Fig. 4a.
  • the airbag main body 10 includes two airbag main pieces 11.
  • the two airbag main pieces 11 are stitched together at the edge area to enclose the air chamber.
  • the band member 20 is attached to the airbag main body 10 by means of adhesion.
  • Fig. 4c is a cross-sectional view showing another embodiment of the curtain airbag taken along the line A-A in Fig. 4a.
  • the belt-shaped member 20 is first adhered to the airbag main body 10, and then the belt-shaped member 20 and the airbag main body 10 are sewn together. In this way, when the airbag main body 10 is twisted, the belt-shaped member 20 is not easily detached from the airbag main body 10.
  • the stitch 30 extends over the entire length of the belt-shaped member 20 in parallel to the length direction of the belt-shaped member 20 and is centrally provided on the belt-shaped member 20 in the width direction of the belt-shaped member 20.
  • Fig. 5 is a cross-sectional view showing a curtain airbag according to still another embodiment of the present invention.
  • the airbag main body 10 is integrally formed, and the belt-shaped member 20 is attached to the airbag main body 10 by bonding.

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

Abstract

一种用于车辆的帘式气囊（1），包括：气囊主体（10），气囊主体（10）限定气室；和带状部件（20），其贴靠在气囊主体（10）上，其中，带状部件（20）能够导电，并且构造为在气囊主体（10）扭转时产生变形或断裂，使得带状部件（20）的电阻发生变化。

Description

用于车辆的帘式气囊 技术领域
本发明涉及一种用于车辆的帘式气囊。
背景技术
帘式气囊安装在机动车辆的顶棚。当展开时，帘式气囊邻靠车辆侧窗，以用于在发生侧面撞击或翻车事故的情况下，为乘员的头部提供保护。当收纳时，帘式气囊能够卷绕和/或折叠成长条形。然而，长条形的帘式气囊容易扭转，使得一方面难以向车辆的安装部分对位，另一方面可能影响帘式气囊的展开。
已知在帘式气囊上设置沿帘式气囊的长度方向延伸的标记线，来判定帘式气囊是否扭转。如果观察到标记线弯曲，则判定帘式气囊扭转。然而，这很大程度上依赖于人的视觉判断，导致容易发生漏检的问题。
因此，需要提供一种可靠地掌握帘式气囊是否发生扭转的帘式气囊。
发明内容
本发明提供了一种可靠地掌握帘式气囊是否发生扭转的帘式气囊。
本发明提供了用于车辆的帘式气囊，其包括：气囊主体，气囊主体限定气室；和带状部件，其贴靠在气囊主体上，其中，带状部件能够导电，并且构造为在气囊主体扭转时产生变形或断裂，使得带状部件的电阻发生变化。
根据本发明的实施例，气囊主体能够卷绕和/或折叠成沿气囊主体的长度方向延伸的长条状，并且带状部件沿气囊主体的长度方向延伸。
根据本发明的实施例，带状部件上设置有彼此间隔开的多个裂口。
根据本发明的实施例，带状部件具有沿气囊主体的长度方向延伸的相对的第一侧边缘和第二侧边缘，并且多个裂口包括：多个第一裂口，其从 第一侧边缘沿带状部件的宽度方向向内延伸；和多个第二裂口，其从第二侧边缘沿带状部件的宽度方向向内延伸，其中，第一裂口和第二裂口在气囊主体的长度方向上依次交替地布置。
根据本发明的实施例，带状部件位于长条状的气囊主体的外表面的适当位置处，使得当气囊主体安装在车辆上时，便于检测带状部件的电阻。
根据本发明的实施例，带状部件沿气囊主体的整个长度延伸。
根据本发明的实施例，带状部件为金属、导电高分子聚合物、导电薄膜或导电不织布。
根据本发明的实施例，气囊主体包括两个气囊主片，两个气囊主片在边缘区域处相缝合并包封气室，其中，
带状部件通过粘结和/或缝合的方式贴合在气囊主体上。
根据本发明的实施例，气囊主体一体地成形，并且带状部件通过粘接的方式贴合在气囊主体上。
根据本发明的实施例，如果气囊主体发生扭转，则贴靠在气囊主体上的带状部件随之发生变形或者甚至断裂。当带状部件发生变形或断裂时，带状部件的电阻会发生变化。因此，通过测量带状部件的电阻的变化，可以检测气囊主体是否发生扭转。以这种方式，可以可靠地对气囊主体的扭转进行检测，而不会发生漏检的情况。
附图说明
图1是示出根据本发明的实施例的用于车辆的帘式气囊的平面图。
图2是示出根据本发明的实施例的带状部件的局部放大图。
图3是示出不同伸长率的带状部件在变形之后电阻变化的示意图。
图4a是示出根据本发明的实施例的帘式气囊的局部放大图。
图4b是示出沿着图4a中的A-A线所截取的一个实施例的帘式气囊的局部剖视图。
图4c是示出沿着图4a中的A-A线所截取的另一个实施例的帘式气囊的局部剖视图。
图5是示出根据本发明的又一个实施例的帘式气囊的剖视图。
具体实施方式
下面，结合附图对本发明的示例性实施例进行详细描述。
图1是示出根据本发明的实施例的用于车辆的帘式气囊的平面图。如图1所示，帘式气囊1包括气囊主体10和带状部件20。
气囊主体10用于限定气室，并且气室可以接收来自气体发生器(未示出)的气体。气囊主体10可以卷绕和/或折叠成沿气囊主体10的长度方向延伸的长条状，使得气囊主体10处于收纳状态。处于收纳状态的气囊主体10可以安装在车辆的顶棚上。带状部件20贴靠在气囊主体10上，并且能够导电。带状部件20构造为在气囊主体10扭转时产生变形或断裂，使得其自身的电阻发生变化。
以下，描述判定帘式气囊1是否发生扭转的方法。首先，在气囊主体10未卷绕和/或折叠时，检测带状部件20的电阻R1。然后，当气囊主体10安装在车辆的顶棚上之后，检测带状部件20的电阻R2。如果R2大于R1，则判定气囊主体10发生扭转。如果R2基本上等于R1，则判定气囊主体10未发生扭转。
如果气囊主体10发生扭转，则贴靠在气囊主体10上的带状部件20随之发生变形或者甚至断裂。当带状部件20发生变形或断裂时，带状部件20的电阻会发生变化。具体地，当带状部件20变形时，其电阻会增大。当带状部件20断裂时，其电阻会变得无穷大。因此，通过测量带状部件20的电阻的变化，可以检测气囊主体10是否发生扭转。以这种方式，可以可靠地对气囊主体10的扭转进行检测，而不会发生漏检的情况。
在该实施例中，带状部件20沿气囊主体10的长度方向延伸。然而，应当理解，只要带状部件20在气囊主体10发生扭转时产生变形或断裂，带状部件20的定向并不限于此。例如，带状部件20可以倾斜于气囊主体10的长度方向延伸。
图2是示出根据本发明的实施例的带状部件的局部放大图。图2中仅示出了带状部件20的一部分，并且带状部件20的其余部分具有与图2所示的部分相同的构造。如图2所示，带状部件20上设置有彼此间隔开的 多个裂口。在这种情况下，当气囊主体10发生扭转时，带状部件20易于发生断裂，并且不易从气囊主体10上脱落。
在该实施例中，带状部件20具有沿气囊主体10的长度方向延伸的相对的第一侧边缘和第二侧边缘。带状部件20具有多个第一裂口21和多个第二裂口22。第一裂口21从第一侧边缘沿带状部件20的宽度方向向内延伸，并且第二裂口22从第一侧边缘沿带状部件20的宽度方向向内延伸。第一裂口21和第二裂口22在气囊主体10的长度方向上依次交替地布置。
应当理解，第一裂口21和第二裂口22的布置方式并不限于此。例如，第一裂口21和第二裂口22可以不从带状部件20的侧边缘开裂，而是在带状部件20的内部开裂。例如，第一裂口21和第二裂口22也可以倾斜于带状部件20的宽度方向延伸。
在该实施例中，多个第一裂口21沿气囊主体10的长度方向等间隔地布置，并且多个第二裂口22沿气囊主体10的长度方向等间隔地布置。相邻的两个第一裂口21之间的间距与相邻的两个第二裂口22之间的间距相等。每个第二裂口22居中地位于相邻的两个第一裂口21之间。
在该实施例中，多个第一裂口21的长度相同，多个第二裂口22的长度相同，并且多个第一裂口21与多个第二裂口22的长度相同。第一裂口21的长度与第二裂口22的长度之和小于带状部件20的宽度。
在该实施例中，带状部件20位于长条状的气囊主体10的外表面的适当位置处，使得当气囊主体10安装在车辆上时，便于检测带状部件20的电阻。在这种情况下，当气囊主体10安装在车辆的顶棚上时，安装人员易于接近带状部件20，以对带状部件20的电阻进行检测。当气囊主体10膨胀展开时，气囊主体10的一侧面向车室，并且气囊主体10的另一侧面向车窗。带状部件20通常设置在气囊主体10的面向车室的一侧上。
在该实施例中，带状部件20沿气囊主体10的整个长度延伸。带状部件20可以为金属、导电高分子聚合物、导电薄膜或导电不织布。或者，带状部件20也可以为在变形时电阻发生改变的其他材料。
图3是示出不同伸长率的带状部件20在变形之后电阻变化的示意图。如图3所示，伸长率越小，电阻变化越大。带状部件20的伸长率优选地 较小。在这种情况下，当气囊主体10扭转时，带状部件20易于发生断裂。
图4a是示出根据本发明的实施例的帘式气囊的局部放大图，并且图4b是示出沿着图4a中的A-A线所截取的一个实施例的帘式气囊的剖视图。如图4a和图4b所示，气囊主体10包括两个气囊主片11。两个气囊主片11在边缘区域处相缝合并包封气室。带状部件20通过粘接的方式贴合在气囊主体10上。
图4c是示出沿着图4a中的A-A线所截取的另一个实施例的帘式气囊的剖视图。如图4c所示，带状部件20首先粘接在气囊主体10上，然后将带状部件20与气囊主体10缝制在一起。以这种方式，当气囊主体10扭转时，带状部件20不易从气囊主体10上脱落。在该示例中，缝线30平行于带状部件20的长度方向在带状部件20的整个长度上延伸，并且在带状部件20的宽度方向上居中地设置在带状部件20上。
图5是示出根据本发明的又一个实施例的帘式气囊的剖视图。如图5所示，气囊主体10一体地成形，并且带状部件20通过粘接的方式贴合在气囊主体10上。
以上所述的仅是本发明的原理和较佳的实施例。应当指出，对于本领域的技术人员来说，在本发明原理的基础上，还可以做出若干其他变型，也应视为本发明的保护范围。

Claims (9)

  1. 一种用于车辆的帘式气囊(1)，其特征在于，包括：
    气囊主体(10)，所述气囊主体(10)限定气室；和
    带状部件(20)，其贴靠在所述气囊主体(10)上，其中，
    所述带状部件(20)能够导电，并且构造为在所述气囊主体(10)扭转时产生变形或断裂，使得所述带状部件(20)的电阻发生变化。
  2. 根据权利要求1所述的帘式气囊(1)，其特征在于，
    所述气囊主体(10)能够卷绕和/或折叠成沿所述气囊主体(10)的长度方向延伸的长条状，并且所述带状部件(20)沿所述气囊主体(10)的长度方向延伸。
  3. 根据权利要求2所述的帘式气囊(1)，其特征在于，
    所述带状部件(20)上设置有彼此间隔开的多个裂口。
  4. 根据权利要求3所述的帘式气囊(1)，其特征在于，
    所述带状部件(20)具有沿所述气囊主体(10)的长度方向延伸的相对的第一侧边缘和第二侧边缘，并且所述多个裂口包括：
    多个第一裂口(21)，其从所述第一侧边缘沿所述带状部件(20)的宽度方向向内延伸；和
    多个第二裂口(22)，其从所述第二侧边缘沿所述带状部件(20)的宽度方向向内延伸，其中，所述第一裂口(21)和所述第二裂口(22)在所述气囊主体(10)的长度方向上依次交替地布置。
  5. 根据权利要求4所述的帘式气囊(1)，其特征在于，
    所述带状部件(20)位于长条状的所述气囊主体(10)的外表面的适当位置处，使得当所述气囊主体(10)安装在所述车辆上时，便于检测所述带状部件(20)的电阻。
  6. 根据权利要求5所述的帘式气囊(1)，其特征在于，
    所述带状部件(20)沿所述气囊主体(10)的整个长度延伸。
  7. 根据权利要求6所述的帘式气囊(1)，其特征在于，
    所述带状部件(20)为金属、导电高分子聚合物、导电薄膜或导电不 织布。
  8. 根据权利要求7所述的帘式气囊(1)，其特征在于，
    所述气囊主体(10)包括两个气囊主片(11)，所述两个气囊主片(11)在边缘区域处相缝合并包封所述气室，其中，
    所述带状部件(20)通过粘结和/或缝合的方式贴合在所述气囊主体(10)上。
  9. 根据权利要求7所述的帘式气囊(1)，其特征在于，
    所述气囊主体(10)一体地成形，并且所述带状部件(20)通过粘接的方式贴合在所述气囊主体(10)上。
PCT/CN2020/139431 2019-12-31 2020-12-25 用于车辆的帘式气囊 WO2021136090A1 (zh)

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JP2022531465A JP7454670B2 (ja) 2019-12-31 2020-12-25 車両のためのカーテンエアバッグ
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