Autoliv Asp, Incorporated

Other

Honda Motor Co., Ltd.

Travis B Hess

Kurt Kottke

Davin G Saderholm

Larry D Rose

Eric M Heitkamp

Yutaka Hirota

Derrick Staheli

Michael Jay Daines

Jesse R Crookston

Thomas C Burton

Kurt Gammil

Gavin Francom Anae

Akira Koizumi

Matthew Lee Munsee

Atsushi Murakami

Christopher Banatin

Corey Farnsworth

Blake Heiner

An inflatable airbag system can be configured to be mounted to a frontal region of a vehicle. The inflatable airbag system includes a housing configured to be mounted on a steering wheel of a vehicle and an inflator assembly at least partially disposed within the housing. The inflatable airbag system includes an airbag that receives inflation gas from the inflator assembly to expand and deploy out of the housing from a packaged configuration to a deployed configuration to provide occupant crash protection during a collision event, the airbag defining an inflatable chamber. A diffuser is disposed within the inflatable chamber and is in fluid communication with the inflator assembly. An occupant-facing panel of the diffuser comprises an aperture disposed in the center of the occupant-facing panel of the diffuser.

Frontal airbag systems

Airbag cushion wrappers and related airbag cushion assemblies and methods. In some embodiments, an airbag cushion assembly may comprise an airbag cushion in a folded configuration, a plurality of studs, which may extend from a retainer ring, and a compression wrapper wrapped around the airbag cushion. The compression wrapper may comprise a plurality of vertical straps coupled with the plurality of studs. Each of the plurality of vertical straps may extend along and compress a corner region of the airbag cushion to reshape the airbag cushion. In some embodiments, a radial strap may extend between each adjacent vertical strap of the compression wrapper.

Airbag compression wrappers and related airbag assemblies

Airbag assemblies are disclosed that include inflatable knee airbags. The knee airbags can include panel(s) forming a main chamber that provides a primary cushioning protection zone to a lower leg of a vehicle occupant. The knee airbags can further include an external chamber panel coupled to a rearward surface of an occupant-facing panel, external to the main inflatable chamber, to form an external chamber facing the occupant. Vent(s) through the occupant-facing panel can communicate inflation gas from the main chamber to the external chamber to fill a space between the vehicle and the lower leg of the occupant, and to control timing of inflation of the external chamber to cause it to inflate on lateral sides of the lower leg of the occupant to thereby limit lateral movement of the lower leg relative to the vehicle.

Knee airbag assemblies

The present invention provides a system and method for tethering that may be used to keep a cushion properly positioned for side impact protection, particularly in vehicles with limited space rearward of the cushion. A tethering assembly provides tension to keep the cushion in place. The tethering assembly may include a tether with first and second ends attached together such that the tether forms a loop. The first and/or second ends may also be attached to a lower portion of the cushion. Upper and lower anchors may be attached to a vehicle surface near the cushion to slidably retain the tether. When the cushion inflates, the first and second ends move downward. The lower anchor may be a locking mechanism that restricts withdrawal of the first end. During deployment and impact of a vehicle occupant with the cushion, the tensioning assembly exerts tension to keep the cushion in place.

Compact tethering system and method for an inflatable curtain

An energy-absorbing bracket is disclosed for use in a vehicle to absorb the impact of a vehicle occupant with an interior surface of the vehicle such as a vehicular pillar, an interior trim panel, and other potential areas of contact. The brackets of the invention generally include an anchor plate configured to allow attachment of the bracket to a surface, an extension arm extending from the anchor plate; and a support foot linked to the extension arm. The energy-absorbing brackets of the invention are generally incompletely tubular in nature, and configured to deform when impacted to dissipate impact energy and assume a configuration adapted to absorb additional impact energy.

Energy absorption bracket

An inflatable curtain package that is made of an inflatable curtain wrapped around by a thin film is disclosed. The inflatable curtain has a number of mounting tabs that allows the inflatable curtain to be attached to a vehicle. The orientation of the thin film allows mounting tabs to extend out of a seam in thin film. The inflatable curtain package may be constructed by aligning a first edge of the thin film to a position near a location wherein the mounting tabs attach to the inflatable curtain. Next, the mounting tabs are positioned over the first edge of the thin film. Then a second edge of the thin film is positioned to overlap the first edge and the attachment location. The two overlapping edges cause the thin film to wrap around the inflatable curtain.

Shrink wrap for inflatable curtain package

A novel safety restraint system especially well suited to protect occupants of a vehicle from lateral impact is described. One or more cushion portions are provided and installed to inflate between an occupant and a lateral surface, such as a door or side window. The cushion portions may be connected to an air source or to each other through the use of sail portions and supply tubes, which may be attached to the cushion portions by chemical bonding, adhesive bonding, sewing, RF welding, or any other suitable method. The cushion portions may have an interior coating of a urethane based substance, mated to a similar substance coating the exterior of a supply tube or sail portion. The cushion portions may then be RF welded to the sail portion or supply tube without restricting gas flow into the cushion portions. The sail portions and supply tubes are preferably fabricated from a material different from that used to form the cushion portions, so as to reduce the cost and weight of the safety restraint system.

Inflatable curtain cushion

The present invention provides a system and method for distributing inflation gases within an airbag cushion. Such a cushion may have one or more protection zones configured to inflate to protect vehicle occupants. An inflation channel maybe enclosed by one or more of the protection zones, and may be attached to a mounting surface within a protection zone. The inflation channel may be connected to an inflator, and may have a plurality of holes along its length, sized or spaced apart in a manner selected to provide a comparatively even flow rate of inflation gas to all parts of the cushion during inflation. Additionally, the inflation channel may have a gas outlet extension along which the holes are disposed; the gas outlet extension may have a tapered shape configured to collapse under external pressure to prevent backflow of inflation gases into the inflation channel. The inflation channel may be easily manufactured in a number of ways, including extrusion of a polymeric workpiece with a slit along its length. The slit may be intermittently closed to form the gas outlet extension with the holes, without the need for punching or drilling.

Apparatus and method for airbag inflation gas distribution

A system and method for enhancing the interchangeability, cost effectiveness, and protective capacity of side impact, inflatable curtains is disclosed. An inflatable curtain module may have multiple cushions attached together by a separately manufactured inflatable tension coupling. The tension coupling may be attached to the cushions prior to folding of the cushions by, for example, sewing one end of the tension coupling to each cushion. The tension coupling may also be attached to the cushions after the cushions have been folded. The cushions may each have one or more tabs positioned to extend inward toward the tension coupling; the tabs may protrude from the folded cushions so that the tension coupling can be attached to the tabs after the cushions have been folded. The tension coupling may have a plurality of expanses configured to be attached between the cushions parallel to each other, and a flexible central portion connecting a pair of expanses to provide a barrier against occupant excursion while still permitting compaction of the tension coupling. Several combinations of compaction methods may be used to compact the cushions and the tension coupling. The tension coupling may alternatively have an array of holes at each end configured to be aligned with an array of holes on each cushion, so that one or more attachment mechanisms such as laces can be inserted through the holes to provide attachment.

Apparatus and method for airbag cushion modularization

A system and method for reducing the profile of compacted seams in an inflatable curtain modules is disclosed. A cushion of an inflatable curtain module has interior seams configured to separate the cushion into chambers. The interior seams are angled with respect to the direction along which the cushion is compacted to ensure that each interior seam does not simply bunch up at a one single location along the length of the compacted cushion. Preferably, the interior seams are angled so that overlap does not occur along at least half the length of each interior seam. The angle may be further selected to ensure that no overlap occurs, or even that no two portions of any interior seams can interfere to create a combined bulge. The interior seams may be modestly angled, aggressively angled to form a nested configuration, or even angled perpendicular to the compaction direction. The interior seams may also be curved to produce a more even displacement between helical turns of the interior seams after the cushion has been rolled.

System and method and method for seam profile minimization for an inflatable curtain

A venting arrangement for an inflatable curtain cushion is disclosed. The inflatable curtain cushion includes a pair of fabric layers that are themselves gas permeable. The fabric layers have an impermeable coating on the interior surface of fabric layers. One or more vents are provided by bonding a portion of the fabric layers together at the impermeable coating. Separation of the bonded fabric layers causes delamination of the coating from one of the fabric layers. Exposure of the underlying permeable fabric allows venting of inflation gas. The bonded fabric layers separate when gas pressure within the inflatable curtain cushion exceeds a threshold pressure. The number and size of the vents can vary depending upon the permeability of the underlying fabric layer and the desired deflation rate.

Inflatable curtain cushion vent

Featured for use in an inflatable restraint system installation is an airbag module assembly wherein the airbag cushion is joined or attached via interlocking reaction housing component parts. The invention is well suited for the use of such interlocking reaction housing component parts formed of relatively low-cost stamped steel.

Growing community of inventors

Ogden, UT, United States of America

Travis B Hess