• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    SIDE AIR CUSHION MODULE ASSEMBLY The present invention relates to a side airbag module assembly for a vehicle seat backrest having a molded plastic cover (22) with a Class A surface that forms the outside of the cover. visible after installation on the backrest (60). A base plate (32) of an airbag support (24) made of metal or plastic is rigidly attached to the cover (22) by insertion molding or another method of fixation. A fixing bracket (34) is integrally formed on the base plate (32). An air cushion (15), including a gas generator (14) is prepackaged in a soft pack (12) with fasteners (20) protruding from the soft pack (12). The fixing elements (20) and the fixing support (34) are configured to attach the soft package (12) to the air cushion support (24). Upon activation of the airbag, the fixing bracket (34) will flex and thus open the cover (22), which allows the airbag (15) to inflate in a forward direction.
    公开号:BR112014000592B1
    申请号:R112014000592-3
    申请日:2012-06-22
    公开日:2020-12-29
    发明作者:Lusk Bobby；Wang Bin；Czach Brian；W Smith Bradley；Richards Charles；Mueller Louis；S Hatfield Mark；Richard Garner Brett
    申请人:Autoliv Asp, Inc.；
    IPC主号:
    专利说明:

    CROSS REFERENCE FOR RELATED PATENT APPLICATION
    This patent application claims priority based on United States Patent Application US 13 / 179,801 filed on 7/11/2011. FIELD OF THE INVENTION
    The present invention relates generally to airbags for use as an impact protection device for an occupant of a motor vehicle. More specifically, it refers to a side airbag module, with a gas generator and a folded airbag accommodated on the back of a vehicle seat also called the seat back. The airbag unfolds into the motor vehicle when the associated gas generator is activated by an electrical signal received from a vehicle unit when an electronic control impact is detected. BACKGROUND OF THE INVENTION
    A usual design of a side airbag module includes a gas generator mounted inside a cavity on a reinforced side of a vehicle seat backrest. The gas generator is mounted on a rear part of the seat cavity and projects inflation gas in a direction towards the front of the vehicle. In the seat cavity, a folded air cushion is arranged around and connected to the gas generator. The seat cavity is bounded by a cover made of a molded shell of optically attractive plastic material that hides the airbag module. The cover has a small resistance seam or thread, designed to break when the gas generator inflates the airbag.
    The known air cushion described above, in which the gas generator is mounted on the reinforced side of the back of the vehicle seat, has the disadvantage that each part of the gas generator has to be individually connected to a fixing structure inside the cavity seat that may not be easily accessible for assembly. BRIEF DESCRIPTION OF THE INVENTION
    It is an objective of the present invention to eliminate the module housing and integrate the baffle plate and the Class A cover.
    This objective is achieved through the following measures: The airbag module assembly comprises a molded plastic cover with a so-called surface
    Class A that constitutes the exterior of the cover visible to an occupant after installing the seat. Opposite the surface
    Class A of the cover, a base plate of an airbag support made of metal or high-strength plastic is molded or rigidly attached to the cover. A fixing bracket is integrally formed with the base plate. An air cushion including a gas generator with fasteners is prepackaged in a soft package. The soft package is covered by a wrap made of a fine woven or non-woven textile, plastic or aluminum cover with fasteners penetrating the wrap material.
    The wrap has a designated cut line made from weakened material or tear seam. The wrap can also be merely an adhesive tape or flap used to hold the assembly together and may not require a break line. The fasteners and the fastening bracket are configured to secure the soft package to the airbag support.
    Other details and advantages of the present invention will become apparent from the following description of the exemplary embodiments illustrated by the drawings. BRIEF DESCRIPTION OF THE DRAWINGS
    In the drawings,
    Figure 1 shows a subset of an airbag and a gas generator being wrapped in a soft package;
    Figure 2 shows the subset of Figure 1 wrapped in the soft package;
    Figure 3 shows a cover with an installed base plate, which includes an air cushion support with an integral support plate;
    Figure 4 shows a different view of the airbag support in Figure 3.
    Figure 5 shows the soft package of Figure 1 attached to the airbag support fixing bracket;
    Figure 6 shows a cross-sectional view through a backrest with a side airbag module of Figures 1 to 4 installed;
    Figure 7 shows a detail of an alternative solution of installing a side airbag module on a backrest. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
    Figures 1 to 4 detail steps for assembling a side airbag module (10), as shown in
    Figure 5, starting with a soft airbag package (12) shown in Figures 1 and 2. The soft package (12) has a wrap (13) with a first flap (16), a second flap (17), and a third flap (18) and involves a folded air cushion (15) and a gas generator (14). Two threaded fixing screws (20) connected to the gas generator (14) penetrate the three flaps (16) to (18) of the wrap (13) from the inside out. The first flap (16) is rolled in a first direction, and overlaps one of the fixing screws (20) that protrudes through the first flap (16) through a corresponding hole (19). The second flap (17) is rolled in the opposite direction of the first flap (16), and partially overlaps the latter and has two holes (19) attached to both screws (20). The third flap (18) extends in the same direction as the first flap (16), partially overlapping with the second flap (17).
    The third flap (18) has a hole (19) connected to the screw (20) left free by the first flap (16). The wrap (13) is made of woven or non-woven textile material, plastic or aluminum foil and has an intentionally weak seam (21) in the wrap (13) designed to tear when the gas generator (14) inflates the pressure pad. air (15) inside the wrap (13).
    Figure 3 shows a cover (22) made of molded plastic material. The cover (22) has an elongated shape, with two long sides and two short sides to cover a corresponding cavity opening on a reinforced side of a rear seat back of the vehicle. The cover (22) has an outer surface (not visible in Figure 3), which meets Class A standards, either because it is covered with upholstery fabric or because of its own textured appearance. An inner surface of the lid (22) has a central area (26) that is substantially flat, framed by a flange (28) folded to the inner side of the lid (22). An airbag support (24) with a base plate (32) and a fixing support (34) integral with the base plate (32). Figure 4 shows the airbag support in a different view, which illustrates how the base plate (32) and the fixing support (34) are formed from a single piece of metal or high-strength plastic. The fixing support bends under forces exerted during the inflation of the air cushion (15). The base plate (32) of the airbag support (24) has a shape adapted to and slightly smaller than the central area (26) of the cover (22) and is rigidly connected to the central area (26) of the cover (22 ). In the embodiment shown, the base plate (32) is molded into the plastic of the lid (22), as indicated by a dashed line that traces the outline of the base plate (32).
    The attachment of the base plate (32) to the central area (26) can alternatively be achieved by means of an adhesive - as shown in Figure 6 - or by another durable method, such as fixing elements.
    The fixing bracket (34) protrudes from the base plate (32). In the embodiment shown, the fixing bracket includes two 90 degree bends, which create a flap (36) that extends substantially parallel to the base plate towards the center of the base plate (32) with a step (37) leaving space for an intermediate nut (30) illustrated in Figure 5. The flange (36) displays two grooves (38) arranged perpendicular to each other and dimensioned to receive the threaded screws (20) of the soft package (12). Of course, the grooves (38) can be arranged at other angles, or even parallel to each other.
    Due to the perpendicular arrangement of the grooves (38), the threaded screws (20) are inserted individually into the grooves (38), as shown in Figure 5. A nut (30) is applied to one of the threaded screws (20) and to fix the soft pack (12) in the airbag support (24). The step (37) compensates for the thickness of the nut (30). After completing the previous steps, the side airbag module (10) is ready for installation on a vehicle seat.
    Figure 6 shows a schematic side view of the airbag module (10) similar to the module shown in Figure 4 installed on a backrest (60) of a vehicle seat. The embodiment shown in Figure 6 differs from
    Figure 4 by the fact that the base plate (32) is attached to the cover (22) by an appropriate adhesive. The backrest (60) is installed in a vehicle facing the left side of Figure 5. The seat structure (62) has a cavity (64) adapted to receive the side airbag module (10) on a reinforced side ( 65). The screws (20), protruding from the side airbag module, are inserted through the corresponding holes (not visible) in a rear wall (66) of the cavity (64) and fixed with the fixing nuts (40) in a plane 15 extending substantially parallel to the base plate (32).
    After installation, the cover (22) covers the entire recessed cavity with the reinforced side. The base plate (32), which is formed in one piece with the fixing bracket (34), extends along the cover (22) connected to it. The fixing bracket (34) extends from the cover (22) to the rear wall (66), where the flange (36) is aligned with and connected to the rear wall (66).
    In Figure 6, the function of the airbag support (24) is illustrated. When the gas generator (14) inflates the air cushion (15), the pressure of the gas exerts a force on the base plate (32) and the cover (22). This outward force pivots the cover (22) and the base plate (32) outwardly, as shown in Figure 6 allowing the air cushion (15) to expand in a substantially forward direction relative to the vehicle.
    Figure 7 illustrates an alternative way of fixing the fixing screws (20) to the seat structure (62).
    In the embodiment shown in Figure 7, the fixing screws (20) penetrate the fixing bracket (34) and the seat structure (62) in a plane perpendicular to the Class A surface. Thus, a portion of the seat frame (62 ) extends perpendicularly to the base plate (32) and the cover (22) (not shown in Figure 7) to fix the fixing screws with fixing nuts (40).
    The foregoing description of various embodiments of the invention has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the exact embodiments disclosed. Numerous modifications and variations are possible in light of the previous teachings. The described embodiments have been chosen and described to provide the best illustration of the principles of the invention and their practical application to thereby enable an expert in the art to use the invention in various embodiments and with various modifications as are appropriate for use specific contemplated. All such modifications and variations are within the scope of the invention as determined in the appended claims, when interpreted according to the extent to which they are sufficiently, legally and equitably entitled.
    权利要求:
    Claims (12)
    [0001]
    1. Side airbag module assembly for use in a motor vehicle and adapted to be installed in a module cavity (64) formed on an occupant's seat back, the cavity receiving the module assembly in an uninflated state , the assembly comprising: a plastic cover (22) sized to cover the cavity (64) and forming an exposed Class A surface, an air cushion assembly having an insufflator, a folded air cushion (15), and a device and a support (24) of an air cushion rigidly attached to the cover (22) and having a fixation structure configured to cooperate with the fixing device and configured to be fixed to the seat back, where when the seat is unfolded module assembly, the folded airbag (15) inflates, causing the cover to move to expose the cavity of the airbag assembly and allowing the airbag to unwind out of the cavity (64), characterized by fact that the air cushion support consists of a fixation support (34) and a base plate (32) integrally connected, the base plate (32) extending parallel to the exposed Class A surface and being molded or rigidly connected to the cover ( 22) opposite the Class A surface of the cover (22).
    [0002]
    2. Assembly according to claim 1, characterized by the fact that the base plate (32) is molded inside the cover (22).
    [0003]
    3. Assembly according to claim 1, characterized in that the base plate (32) is attached to the cover (22) by means of an adhesive.
    [0004]
    4. Assembly according to claim 1, characterized in that the base plate (32) is connected to the cover (22) by means of fixing elements.
    [0005]
    5. Assembly according to claim 1, characterized in that the air cushion support (24) is made of metal.
    [0006]
    6. Assembly according to claim 1, characterized by the fact that the airbag support (24) is made of plastic.
    [0007]
    7. Assembly according to claim 1, characterized in that the fixing bracket (34) has a flange (36) with grooves (38).
    [0008]
    8. Assembly according to claim 7, characterized in that the grooves (38) are configured to cooperate with threaded screws (20) that can be secured by threaded nuts (40).
    [0009]
    9. Assembly according to claim 8, characterized by the fact that the fixing device is connected to the insufflator, which is a gas generator (14), and protrudes from the airbag assembly.
    [0010]
    10. Assembly according to claim 1, characterized in that it comprises a wrap (13) that encloses the insufflator and the air cushion (15) folded to form a soft package (12).
    [0011]
    11. Assembly according to claim 10, characterized in that the wrap (13) has at least one so-called weakened resistance tear line.
    [0012]
    12. Assembly according to claim 1, characterized in that the cover (22) is configured to be covered with upholstery fabric, leather or any molded Class A decorative surface.
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    同族专利:
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    EP2731829B1|2017-02-08|
    US8915518B2|2014-12-23|
    WO2013009451A1|2013-01-17|
    US20130015640A1|2013-01-17|
    BR112014000592A2|2017-02-14|
    US20140246844A1|2014-09-04|
    EP2731829A1|2014-05-21|
    EP2731829A4|2015-05-06|
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    法律状态:
    2017-04-04| B11A| Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing|
    2017-08-22| B04C| Request for examination: reinstatement - article 33, solely paragraph, of industrial property law|
    2017-08-29| B08F| Application fees: dismissal - article 86 of industrial property law|
    2017-11-07| B08G| Application fees: restoration|
    2018-12-11| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-11-19| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-09-08| B09A| Decision: intention to grant|
    2020-12-29| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 22/06/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US13/179,801|2011-07-11|
    US13/179,801|US8764049B2|2011-07-11|2011-07-11|Side airbag module assembly|
    PCT/US2012/043668|WO2013009451A1|2011-07-11|2012-06-22|Side airbag module assembly|
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