WO2022001536A1 - 气囊组件和车辆座椅总成 - Google Patents

气囊组件和车辆座椅总成 Download PDF

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Publication number
WO2022001536A1
WO2022001536A1 PCT/CN2021/096989 CN2021096989W WO2022001536A1 WO 2022001536 A1 WO2022001536 A1 WO 2022001536A1 CN 2021096989 W CN2021096989 W CN 2021096989W WO 2022001536 A1 WO2022001536 A1 WO 2022001536A1
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WIPO (PCT)
Prior art keywords
air bag
vehicle seat
airbag
section
occupant
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PCT/CN2021/096989
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English (en)
French (fr)
Inventor
王侃
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奥托立夫开发公司
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Application filed by 奥托立夫开发公司 filed Critical 奥托立夫开发公司
Priority to US18/003,509 priority Critical patent/US20230303024A1/en
Priority to EP21834010.7A priority patent/EP4173898A1/en
Publication of WO2022001536A1 publication Critical patent/WO2022001536A1/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
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—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
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2338—Tethers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
    • B60R2021/2074—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats in head rests
    • 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
    • B60R2021/23146—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection seat mounted
    • 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
    • B60R2021/23161—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for protecting at least two passengers, e.g. preventing them from hitting each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2338—Tethers
    • B60R2021/23386—External tether means

Definitions

  • the present application relates to the field of vehicle technology, and more particularly, to airbag assemblies and vehicle seat assemblies including airbag assemblies.
  • a full wrap air bag assembly includes an air bag and drawstrings.
  • the air bags can be inflated in the event of a vehicle crash and extend along the occupant's head and torso in order to provide an all-round (left and right and top) wrap around the occupant's head and torso.
  • the drawstring is attached to the airbag along the entire extending direction of the airbag, and both ends of the drawstring are respectively fixed to the vehicle seat. When the air bag is inflated, the straps are taut to restrain the air bag.
  • the air bag of this type of air bag module is displaced laterally large, thereby causing the occupant to easily collide with a side occupant or an interior part of the vehicle. Accordingly, it is desirable to provide an airbag assembly and vehicle seat assembly that reliably restrains lateral displacement of the airbag.
  • An object of the present application is to provide an air bag assembly that reliably restrains lateral displacement of an air bag and a vehicle seat assembly including the air bag assembly.
  • the present application provides an air bag assembly for a vehicle seat and comprising: an air bag mounted to the vehicle seat and capable of being inflated from an undeployed state to a deployed state, in which the air bag extends along the vehicle seat an occupant's head and torso in the seat extending to enclose the occupant's head and torso; and a pull strap for mounting the airbag to the vehicle seat and having a first section and a second section, in a deployed state the drawstring is taut, the first section is mounted to the air bag at the outer surface of the air bag in the direction of extension of the air bag, and the second section is angled to the direction of extension of the air bag along at least one outer side of the air bag extension in the direction.
  • the vehicle seat has a steering member that changes the extension direction of the pull strap, and the steering member is a pulley rotatably mounted on the vehicle seat.
  • a vehicle seat includes: a seat base having first pulleys on two sides of the seat base, respectively; and a seat back supported by the seat base, and the two sides of the seat back are respectively There is a second pulley, wherein the two ends of the draw strap are respectively connected to the sides of the air bag, and in the deployed state, on each side of the vehicle seat, the draw strap starts from the end of the draw strap and surrounds the second The pulley and the first pulley extend.
  • the second section between the second pulley and the end of the drawstring extends in a direction perpendicular to the extending direction of the air bag.
  • the air bag has a middle portion in the up-down direction as viewed by the occupant, and the end portion of the drawstring is located at the middle portion.
  • the first pulley in the deployed state, is located in the extending direction of the first section.
  • the air bag in the deployed state, has a front edge spaced from the seat back, and the ends of the draw straps are respectively connected to the front edge.
  • the first section is located at the front edge.
  • the first section is movable along the extension direction of the air bag.
  • the present application also provides a vehicle seat assembly including a vehicle seat and the air bag assembly of the above-described embodiments, the air bag assembly being mounted to the vehicle seat.
  • the taut drawstrings provide restraint on the sides of the air bag, so as to reliably restrain excessive lateral displacement of the air bag when subjected to lateral impact by an occupant. Therefore, the lateral displacement of the occupant can be effectively suppressed, thereby preventing the occupant from colliding with the side occupants or the interior parts of the vehicle.
  • FIG. 1 shows a perspective view of a vehicle seat assembly according to an embodiment of the present application.
  • FIG. 2 shows a side view of a vehicle seat assembly according to an embodiment of the present application.
  • orientation terms such as “front”, “rear”, “upper”, “lower”, “left”, “right” are from the perspective of an occupant seated in the vehicle seat assembly.
  • First and “second” are used in this specification as identifiers and are not intended to indicate importance or order.
  • FIG. 1 shows a perspective view of a vehicle seat assembly according to the present application
  • FIG. 2 shows a side view of a vehicle seat assembly according to an embodiment of the present application
  • the vehicle seat assembly includes a vehicle seat 1 and an airbag module 2
  • the vehicle seat 1 includes a seat base 11 and a seat back 12 supported by the seat base 11 .
  • the seat back 12 is rotatable relative to the seat base 11 so that the angle of the seat back 12 relative to the seat base 11 can be adjusted for the occupant 3 to sit comfortably.
  • the airbag assembly 2 includes an airbag 21 and a drawstring 22 .
  • Air bag 21 may be formed of any suitable material.
  • the air bag 21 may be formed from a woven polymer such as woven nylon yarn.
  • the air bag 21 is mounted to the vehicle seat 1 and can be inflated from an undeployed state to a deployed state. In the deployed state, the air bag 21 extends along the head and torso of the occupant 3 to surround the head and torso of the occupant 3 .
  • the air bag 21 has two side portions spaced apart in the left-right direction and a top portion connecting the two side portions. In the unfolded state, the top portion is generally U-shaped or V-shaped.
  • the air bag 21 has a front edge 211 and a rear edge 212 .
  • the front edge 211 is spaced from the seat back 12 and the rear edge 212 is connected to the seat back 12 . Therefore, regardless of the angle of the seat back 12 relative to the seat base 11 , the air bag 21 is always able to provide an all-round wrap for the head and torso of the occupant 3 .
  • the drawstring 22 may be formed from nylon webbing.
  • the drawstring 22 connects the airbag 21 to the vehicle seat 1 and has a first section 221 and a second section 222 .
  • the drawstring 22 is taut, the first section 221 is mounted to the air bag 21 along the extending direction of the air bag 21 at the outer surface of the air bag 21 , and the second section 222 is attached to at least one outer surface of the air bag 21 .
  • the side surfaces extend in a direction angled to the extending direction of the air bag 21 .
  • the taut drawstrings 22 provide restraint to the sides of the air bag 21 so as to reliably restrain excessive lateral displacement of the air bag 21 when subjected to a lateral impact by an occupant. Therefore, the lateral displacement of the occupant can be effectively suppressed, thereby preventing the occupant from colliding with the side occupants or the interior parts of the vehicle.
  • the vehicle seat 1 has a steering member that changes the extending direction of the drawstring 22 .
  • the steering member is a pulley rotatably mounted on the vehicle seat 1 around which the pull strap 22 extends. By setting the pulley, the resistance of the drawstring 22 during the tightening process can be reduced, so that when the air bag 21 is inflated, the drawstring 22 can be smoothly tightened.
  • Two side surfaces of the seat base 11 are respectively provided with first pulleys 111 , and the first pulleys 111 can be rotatably mounted to the seat base 11 .
  • Two side surfaces of the seat back 12 have second pulleys 121 , respectively, and the second pulleys 121 can be rotatably mounted to the seat back 12 .
  • the two ends 223 of the drawstring 22 are respectively connected to the side surfaces of the air bag 21 .
  • the end 223 of the drawstring 22 is attached to the air bag 21 by stitches, rivets, bolts, adhesives, or the like. In the deployed state of the air bag 21, on each side of the vehicle seat 1, the drawstring 22 extends around the second pulley 121 and the first pulley 111 in order from the end thereof.
  • the drawstring 22 has two second sections 222 to restrain the lateral displacement of the air bag 21 .
  • This embodiment is suitable for restricting the excessive displacement of the air bag 21 to the left and right sides.
  • the airbag modules 2 on the left and right sides of the vehicle seat 1 have the same configuration.
  • the left side (or right side) of the seat base 11 has a first pulley 111 and the left side (or right side) of the seat base 11 has a second pulley 121 .
  • One end 223 of the drawstring 22 is connected to the left side of the air bag 21 .
  • the pull strap 22 extends around the second pulley 121 and the first pulley 111 in order from the end 223 .
  • the other end 223 of the pull strap 22 is connected to the seat base 11 .
  • the drawstring 22 has two second sections 222 to restrain the lateral displacement of the air bag 21 .
  • This embodiment is suitable for the situation where it is only necessary to limit the displacement of the air bag 21 to the left (or to the right) too much.
  • the second section 222 located between the end 223 of the drawstring 22 and the second pulley 121 extends in a direction angled to the extending direction of the air bag 21 .
  • the second section 222 is perpendicular to the extending direction of the air bag 21 .
  • the air bag 21 has an intermediate portion in the up-down direction as viewed by the occupant 3, and the end portion 223 of the drawstring 22 is approximately located at the intermediate portion.
  • the first pulley 111 In the unfolded state of the air bag 21 , the first pulley 111 is located in the extending direction of the first section 221 of the drawstring 22 .
  • the two ends 223 of the drawstring 22 may be connected to the vicinity of the front edge 211 of the air bag 21, respectively.
  • the first section 221 of the drawstring 22 is movable along the extension direction of the air bag 21 . In this way, the resistance of the drawstring 22 during the tightening process can be reduced, so that when the air bag 21 is inflated, the drawstring 22 can be tightened smoothly.
  • the first section 221 of the drawstring 22 can be fixedly attached to the air bag 21, eg, the first section 221 is sewn to the air bag 21 along its perimeter.
  • the first section 221 is located substantially at the front edge 211 of the air bag 21 .
  • the air bag 21 is provided with an accommodating cavity extending along the extending direction of the air bag 21 , and the drawstring 22 can penetrate through the accommodating cavity and move freely in the accommodating cavity.
  • the accommodating cavity defined between the elongated fabric and the outer surface of the air bag 21 is formed by sewing the elongated fabric on the outer surface of the air bag 21 .

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

Abstract

一种气囊组件（2），包括：气袋（21），其安装至车辆座椅（1）并且能够从未展开状态充气到展开状态，在展开状态下，气袋（21）沿车辆座椅（1）中的乘员（3）的头部和躯干延伸，以包围乘员（3）的头部和躯干；和拉带（22），其用于将气袋（21）安装至车辆座椅（1）并且具有第一部段（221）和第二部段（222），在展开状态下，拉带（22）绷紧，第一部段（221）在气袋（21）的外表面沿气袋（21）的延伸方向安装至气袋（21），并且第二部段（222）在气袋（21）的至少一个外侧面沿与气袋（21）的延伸方向成角度的方向延伸。还公开了一种车辆座椅总成，包括车辆座椅和安装至车辆座椅的气囊组件。当气袋展开时，绷紧的拉带对气袋的侧面提供约束，使得在受到乘员的横向冲击时可靠地约束气袋的横向移位过大。因此，可以有效地抑制乘员的横向移位，从而避免乘员与旁侧乘员或车辆的内饰件相碰撞。

Description

气囊组件和车辆座椅总成
相关申请的交叉引用
本申请要求享有于2020年06月30日提交的名称为“气囊组件和车辆座椅总成”的中国专利申请202021238871.4的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及车辆技术领域，并且更具体地，涉及气囊组件和包括气囊组件的车辆座椅总成。
背景技术
全包裹式气囊组件包括气袋和拉带。气袋能够在车辆发生碰撞时充气并沿乘员的头部和躯干延伸，以便于为乘员的头部和躯干提供全方位(左右两侧和顶部)的包裹。拉带沿气袋的整个延伸方向安装至气袋，并且拉带的两端分别固定至车辆座椅。当气袋充气时，拉带绷紧，从而对气袋进行约束。
然而，当受到乘员的横向冲击时，这种类型的气囊组件的气袋横向移位较大，从而导致乘员易于与旁侧乘员或车辆的内饰件相碰撞。因此，期望提供一种可靠地约束气袋的横向移位的气囊组件和车辆座椅总成。
发明内容
本申请的目的在于提供可靠地约束气袋的横向移位的气囊组件和包括该气囊组件的车辆座椅总成。
本申请提供了一种气囊组件，该气囊组件用于车辆座椅并且包括：气袋，其安装至车辆座椅并且能够从未展开状态充气到展开状态，在展开状态下，气袋沿车辆座椅中的乘员的头部和躯干延伸，以包围乘员的头部和躯干；和拉带，其用于将气袋安装至车辆座椅并且具有第一部段和第二部段，在展开状态下，拉带绷紧，第一部段在气袋的外表面沿气袋的延伸方向安装至气袋，并且第二部段在气袋的至少一个外侧面沿与气袋的延伸方向成角度的方向延伸。
根据本申请的实施例，车辆座椅具有使拉带的延伸方向改变的转向部件，并且转向部件为可旋转地安装在车辆座椅上的滑轮。
根据本申请的实施例，车辆座椅包括：座椅底座，座椅底座的两个侧面分别具有第一滑轮；以及座椅靠背，其由座椅底座支撑，并且座椅靠背的两个侧面分别具有第二滑轮，其中，拉带的两个端部分别连接至气袋的侧面，并且在展开状态下，在车辆座椅的每一侧，拉带从拉带的端部开始依次围绕第二滑轮和第一滑轮延伸。
根据本申请的实施例，在展开状态下，位于第二滑轮与拉带的端部之间的第二部段沿与气袋的延伸方向相垂直的方向延伸。
根据本申请的实施例，气袋在乘员所观察到的上下方向上具有中间部分，拉带的端部位于中间部分处。
根据本申请的实施例，在展开状态下，第一滑轮位于第一部段的延伸方向上。
根据本申请的实施例，在展开状态下，气袋具有与座椅靠背间隔开的前部边缘，拉带的端部分别连接至前部边缘处。
根据本申请的实施例，第一部段位于前部边缘处。
根据本申请的实施例，第一部段能够沿气袋的延伸方向移动。
本申请还提供了一种车辆座椅总成，其包括车辆座椅和上述实施例 的气囊组件，气囊组件安装至车辆座椅。
根据本申请的实施例，当气袋展开时，绷紧的拉带对气袋的侧面提供约束，使得在受到乘员的横向冲击时可靠地约束气袋的横向移位过大。因此，可以有效地抑制乘员的横向移位，从而避免乘员与旁侧乘员或车辆的内饰件相碰撞。
附图说明
图1示出了根据本申请的实施例的车辆座椅总成的立体图。
图2示出了根据本申请的实施例的车辆座椅总成的侧视图。
具体实施方式
以下将结合附图描述根据本申请的气囊组件和车辆座椅总成的具体实施例。下面的详细描述和附图用于示例性地说明本申请的原理，本申请不限于所描述的优选实施例，本申请的保护范围由权利要求书限定。
在下面的描述中，“前”、“后”、“上”、“下”、“左”、“右”等方位术语是从坐在车辆座椅总成中的乘员的视角来看。“第一”和“第二”在本说明书中用作标识符，并非旨在表示重要性或顺序。
图1示出了根据本申请的车辆座椅总成的立体图，并且图2示出了根据本申请的实施例的车辆座椅总成的侧视图。如图1和图2所示，车辆座椅总成包括车辆座椅1和气囊组件2。车辆座椅1包括座椅底座11和由座椅底座11支撑的座椅靠背12。座椅靠背12可以相对于座椅底座11旋转，使得可以调节座椅靠背12相对于座椅底座11的角度，以供乘员3舒适地乘坐。
气囊组件2包括气袋21和拉带22。气袋21可以由任何合适的材料形成。例如，气袋21可以由编织聚合物(如编织尼龙纱线)形成。气袋 21安装至车辆座椅1，并且能够从未展开状态充气到展开状态。在展开状态，气袋21沿乘员3的头部和躯干延伸，以包围乘员3的头部和躯干。具体而言，气袋21具有沿左右方向间隔开的两个侧部和将两个侧部相连接的顶部。在展开状态下，顶部呈大致U形或V形弯曲。
气袋21具有前部边缘211和后部边缘212。前部边缘211与座椅靠背12间隔开，并且后部边缘212连接至座椅靠背12。因此，不管座椅靠背12相对于座椅底座11的角度如何，气袋21始终能够为乘员3的头部和躯干提供全方位的包裹。
例如，拉带22可以由尼龙织带形成。拉带22将气袋21连接至车辆座椅1并且具有第一部段221和第二部段222。在展开状态下，拉带22绷紧，第一部段221在气袋21的外表面沿气袋21的延伸方向安装至气袋21，并且第二部段222在气袋21的至少一个外侧面沿与气袋21的延伸方向成角度的方向延伸。以这种方式，当气袋21展开时，绷紧的拉带22对气袋21的侧面提供约束，使得在受到乘员的横向冲击时可靠地约束气袋21的横向移位过大。因此，可以有效地抑制乘员的横向移位，从而避免乘员与旁侧乘员或车辆的内饰件相碰撞。
车辆座椅1具有使拉带22的延伸方向改变的转向部件。在实施例中，转向部件为可旋转地安装在车辆座椅1上的滑轮，拉带22围绕滑轮延伸。通过设置滑轮，可以减少拉带22在绷紧过程中受到的阻力，使得在气袋21充气时，拉带22顺畅地绷紧。
座椅底座11的两个侧面分别具有第一滑轮111，第一滑轮111能够可旋转地安装至座椅底座11。座椅靠背12的两个侧面分别具有第二滑轮121，第二滑轮121能够可旋转地安装至座椅靠背12。拉带22的两个端部223分别连接至气袋21的侧面。例如，拉带22的端部223通过缝线、铆钉、螺栓、粘接剂等连接到气袋21。在气袋21的展开状态下，在车辆座 椅1的每一侧，拉带22从其端部开始依次围绕第二滑轮121和第一滑轮111延伸。在这种情况下，在车辆座椅1的每一侧，拉带22具有两个第二部段222，以约束气袋21的横向移位。这种实施例适合于限制气袋21向左右两方移位过大的情况。在实施例中，车辆座椅1的左右两侧的气囊组件2具有相同的构造。
在替代的实施例中，座椅底座11的左侧(或右侧)具有第一滑轮111，座椅底座11的左侧(或右侧)具有第二滑轮121。拉带22的一个端部223连接至气袋21的左侧。在车辆座椅1的左侧(或右侧)，拉带22从端部223开始依次围绕第二滑轮121和第一滑轮111延伸。在车辆座椅1的右侧(或左侧)，拉带22的另一个端部223连接至座椅底座11。在这种情况下，在车辆座椅1的左侧(或右侧)，拉带22具有两个第二部段222，以约束气袋21的横向移位。这种实施例适合于只需限制气袋21向左方(或向右方)移位过大的情况。
在气袋21的展开状态下，位于拉带22的端部223与第二滑轮121之间的第二部段222沿着与气袋21的延伸方向成角度的方向延伸。例如，该第二部段222与气袋21的延伸方向相垂直。气袋21在乘员3所观察到的上下方向上具有中间部分，拉带22的端部223大致位于该中间部分处。
在气袋21的展开状态下，第一滑轮111位于拉带22的第一部段221的延伸方向上。拉带22的两个端部223可以分别连接至气袋21的前部边缘211附近。
在实施例中，拉带22的第一部段221能够沿气袋21的延伸方向移动。以这种方式，可以减少拉带22在绷紧过程中受到的阻力，使得在气袋21充气时，拉带22顺畅地绷紧。在替代的实施例中，拉带22的第一部段221能够固定地连接至气袋21，例如，第一部段221沿其周缘缝制在气 袋21上。
此外，第一部段221大致位于气袋21的前部边缘211处。气袋21设置有沿气袋21的延伸方向延伸的容纳腔，拉带22可以贯穿容纳腔，并且在容纳腔中自由地移动。在实施例中，通过将长条形织物缝制在气袋21的外表面，而形成限定在长条形织物与气袋21的外表面之间的容纳腔。
如前所述，尽管说明中已经参考附图对本申请的示例性实施例进行了说明，但是本申请不限于上述具体实施方式，本申请的保护范围应当由权利要求书及其等同含义来限定。

Claims (10)

  1. 一种气囊组件(2)，其用于车辆座椅，其中，包括：
    气袋(21)，其安装至所述车辆座椅(1)并且能够从未展开状态充气到展开状态，在所述展开状态下，所述气袋(21)沿所述车辆座椅(1)中的乘员(3)的头部和躯干延伸，以包围所述乘员(3)的头部和躯干；以及
    拉带(22)，其用于将所述气袋(21)安装至所述车辆座椅(1)并且具有第一部段(221)和第二部段(222)，在所述展开状态下，所述拉带(22)绷紧，所述第一部段(221)在所述气袋(21)的外表面沿所述气袋(21)的延伸方向安装至所述气袋(21)，并且所述第二部段(222)在所述气袋(21)的至少一个外侧面沿与所述气袋(21)的延伸方向成角度的方向延伸。
  2. 根据权利要求1所述的气囊组件(2)，其中，
    所述车辆座椅(1)具有使所述拉带(22)的延伸方向改变的转向部件，并且所述转向部件为可旋转地安装在所述车辆座椅(1)上的滑轮。
  3. 根据权利要求2所述的气囊组件(2)，其中，所述车辆座椅(1)包括：
    座椅底座(11)，所述座椅底座(11)的两个侧面分别具有第一滑轮(111)；以及
    座椅靠背(12)，其由所述座椅底座(11)支撑，并且所述座椅靠背(12)的两个侧面分别具有第二滑轮(121)，其中，
    所述拉带(22)的两个端部(223)分别连接至所述气袋(21)的侧面，并且在所述展开状态下，在所述车辆座椅(1)的每一侧，所述拉带(22)从所述拉带(22)的端部(223)开始依次围绕所述第二滑轮 (121)和所述第一滑轮(111)延伸。
  4. 根据权利要求3所述的气囊组件(2)，其中，
    在所述展开状态下，位于所述第二滑轮(121)与所述拉带(22)的端部(223)之间的所述第二部段(222)沿与所述气袋(21)的延伸方向相垂直的方向延伸。
  5. 根据权利要求4所述的气囊组件(2)，其中，
    所述气袋(21)在所述乘员(3)所观察到的上下方向上具有中间部分，其中，
    所述拉带(22)的端部(223)位于所述中间部分处。
  6. 根据权利要求5所述的气囊组件(2)，其中，
    在所述展开状态下，所述第一滑轮(111)位于所述第一部段(221)的延伸方向上。
  7. 根据权利要求6所述的气囊组件(2)，其中，
    在所述展开状态下，所述气袋(21)具有与所述座椅靠背(12)间隔开的前部边缘(211)，其中，
    所述拉带(22)的端部(223)分别连接至所述前部边缘(211)处。
  8. 根据权利要求7所述的气囊组件(2)，其中，
    所述第一部段(221)位于所述前部边缘(211)处。
  9. 根据权利要求1所述的气囊组件(2)，其中，
    所述第一部段(221)能够沿所述气袋(21)的延伸方向移动。
  10. 一种车辆座椅总成，其中，包括：
    车辆座椅(1)；以及
    根据权利要求1至9中任一项所述的气囊组件(2)，其安装至所述车辆座椅(1)。
PCT/CN2021/096989 2020-06-30 2021-05-28 气囊组件和车辆座椅总成 WO2022001536A1 (zh)

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