Abstract:
Airbag systems for use in aircraft are described herein. In some embodiments, an occupant restraint system for use with a passenger seat on an aircraft includes an under-seat airbag and a lap belt airbag. The lap belt airbag can be operably positioned on a lap belt configured to be fastened around a seat occupant, and the under-seat airbag can be positioned proximate to a seat pan. In operation, the under-seat airbag and the lap belt airbag can inflate simultaneously, or at least approximately simultaneously, to reduce occupant forward head path excursion during a crash or other rapid deceleration event.
Abstract:
Airbag assemblies having sleeves and other flexible guide members and associated systems and methods are described herein. Airbag assemblies configured in accordance with some embodiments of the present technology can include a mounting bracket configured to be attached to a structure in an aircraft, such as a passenger seat back or a partition wall, adjacent to a component, such as a display screen. The airbag assemblies can further include an airbag and a guide sleeve attached to the mounting bracket. The airbag is configured to be inflated from a packed or stowed configuration to a deployed configuration. In the stowed configuration, the sleeve at least partially surrounds the airbag. Inflating the airbag to the deployed configuration causes the sleeve to extend between the airbag and at least a portion of the adjacent component to prevent the component or an associated opening from interfering with proper deployment of the airbag.
Abstract:
Various embodiments of vehicle occupant safety systems having extendable restraints for use with, for example, airbags are described herein. In one embodiment, for example, the disclosed technology includes a 2-point occupant restraint that secures an occupant in an aircraft seat. In this embodiment, the aircraft seat is positioned in a seating area that includes a forward monument housing a stowed airbag. In the event of a crash or other significant dynamic event that causes, for example, a rapid deceleration of the aircraft above a preset magnitude, the airbag deploys between the occupant and the monument as the dynamic forces cause the occupant to pitch forward. The forward momentum of the occupant's body creates a significant tension load in the 2-point restraint, which causes the restraint to extend by a preset amount, thereby allowing the occupant to move forward in the seat more than the occupant would have moved had the occupant been wearing a conventional, non-extending 2-point restraint. Although the occupant is allowed to move forward, the occupant remains secured to the extended restraint by means of non-extending webbing that is secured around the waist of the occupant. Allowing the occupant to move forward in this manner enables the occupant's upper torso to impact the airbag at a reduced or otherwise more favorable angle. This can reduce both the speed and the angle at which the occupant's head impacts the airbag, thereby reducing the likelihood of injury.
Abstract:
An electronic module assembly for controlling the deployment of one or more airbags in an aircraft includes a power source, a crash sensor configured to produce a signal in response to a crash event and an accelerometer that is configured to produce a signal in response to a crash event. A processor starts a timer upon detection of the signal from the crash sensor. When the processor receives a signal from the crash sensor, the processor is configured to determine if a signal has also been received from the accelerometer and if signals from both the crash sensor and the accelerometer indicate a crash event then the processor reads a memory associated with an inflator. The processor reads a timing value selected for the inflator and fires the inflator when the timer has a value equal to the timing value selected for the inflator.
Abstract:
Vehicle occupant restraint systems that include a compact, web-mounted airbag that can be deployed during a crash event are described herein. In some embodiments, the web (e.g., a shoulder belt) passes through the stowed airbag during normal use and, when the airbag inflates and deploys, the airbag extends along the length of the web (for example, along the entire length, or at least most of the length, of the web) to protect the occupant. In some embodiments, the restraint systems include shoulder belts having first and second overlapping web portions, and when the airbag inflates and deploys, the airbag extends along the length of the first web portion between the first web portion and the second web portion.
Abstract:
Active airbag vent systems and associated systems and methods are described herein. An airbag system having an active vent configured in accordance with an embodiment of the present technology can include, for example, a first inflator operably coupled to a first hose for inflating an airbag in response to a rapid deceleration event. The airbag system can further include a second inflator operably coupled to a second hose configured to release a vent or seam on the airbag to rapidly deflate the airbag after initial deployment of the airbag.
Abstract:
Apparatuses, devices and systems for attaching seatbelts to anchoring structures in aircraft and other vehicles, are described herein. In some embodiments, such apparatuses include a modular connector having a base configured to be attached to an anchoring structure, a body configured to be attached to a seatbelt, and an annular lock configured to releasably couple the body to the base. In these embodiments, the body carries the lock adjacent to an aperture configured removably receive the base. When the body is pressed over the base, the base passes into the aperture and contacts the annular lock, expanding the lock outwardly around the base. The base continues moving though the aperture in the body until the lock retracts into a groove in base, thereby releasaby locking the body to the base.
Abstract:
Airbag assemblies and associated systems and methods for use in aircraft and other vehicles are described herein that can provide crash protection for occupants seated in an upright position while not injuring or striking occupants in the brace position. An airbag system configured in accordance with an embodiment of the present technology can include an airbag configured to deploy through an opening of a housing during a crash event. The housing can be affixed to a seat or other interior portion (e.g., a fixed portion) of an aircraft forward of a passenger seat. The airbag can initially deploy in a direction away from an occupant in the seat and then move into position between a potential strike hazard and the occupant such that the airbag system can be used to protect occupants seated in an upright position while not injuring occupants in the brace position.
Abstract:
Various embodiments of restraint system pretensioning devices for use in land, air, and sea vehicles are described herein. In one embodiment, a seat unit for use in a military land vehicle or helicopter includes a stroking device that enables the seat to move downwardly in response to sudden movement. The seat unit also includes a seat belt or harness that extends around the occupant in the seat. Sudden movement of the seat in response to an explosion or hard landing causes a pretensioning assembly to automatically pretension the seat harness.
Abstract:
Occupant restraint systems for use with aircraft occupant restraint systems and other restraint systems, and associated devices and methods are disclosed herein. In one embodiment, an occupant restraint system can include a flexible web configured to extend across at least a portion of a lap of an occupant positioned on a seat of an aircraft, and an electronically-actuated pretensioner operably coupled to an end portion of the web. The system can also include a sensor assembly operably coupled to the pretensioner, wherein the sensor assembly is configured to send an electrical signal to the pretensioner in response to an aircraft acceleration or deceleration above a preset magnitude, and wherein, in response to receiving the electrical signal from the sensor assembly, the pretensioner is configured to automatically increase tension on the web.