Abstract:
PROBLEM TO BE SOLVED: To design a new type of filter that is inexpensive, yet still effective in filtering gas.SOLUTION: An airbag inflator includes a pyrotechnic material capable of producing a large quantity of gas during deployment. The inflator also includes a filter, which may be an expanded metal filter that is wrapped about the pyrotechnic material. When this filter is wrapped about the pyrotechnic material, the filter forms a plurality of layers having a plurality of holes of different sizes. This filter also includes a first set of barriers, and a second set of barriers that is positioned outside the first set of barriers, the second set of barriers being offset from the first set of barriers. Gas passing through the filter collides with the first set of barriers to be re-directed, collides with the second set of barriers to be re-directed, and then flows out of the filter.
Abstract:
PROBLEM TO BE SOLVED: To eliminate the need for defining and to eliminate a machining work by a method wherein weld coupling between two parts is effected at a necking part, welding fins generated resultant from a weld work are all formed within the size on the outermost side of the section in the longitudinal direction of an inflator. SOLUTION: An assembly 64 containing an ignition tool 60 and a fuel storage apparatus 62 is mounted through a structure 54, a partition wall 66 is arranged in a manner to span the interior of a housing, and divided into a combustion chamber 68 and an auxiliary gas chamber 70. The two parts are intercoupled through a welding process to form a welding seam. A material for a side wall molten during a welding process is moved from an original position and solidified as welding fins 96. Since a problem arises in the fins 96 formed on the outside when an inflator is inserted through an opening in a module, the assembly of the ignition tool 60 and the fuel storage tool 62 is mounted through insertion of it in a first part during weld coupling. This constitution eliminates a shearing and a machining work, heretofore needed for removal of the fins 96.
Abstract:
compartimento flexível para um módulo de air-bag. trata-se de um módulo de air-bag (10) que pode possuir um dispositivo de inflação (42), uma bolsa de ar (40) e um compartimento (46) que contém o dispositivo de inflação (42) e a bolsa de ar (40) . o compartimento possui uma parede externa formada de um material flexível e um suporte angular projetado para ser ligado a um veículo. durante a aplicação, a bolsa de ar é expelida para fora do compartimento através do suporte angular. o dispositivo de inflação permanece no compartimento e o gás de enchimento é conduzido para a bolsa de ar através do compartimento. o dispositivo de inflação pode ser retido por abas envolvidas ao redor do dispositivo de inflação, e seguro junto a um difusor orientado de forma perpendicular do dispositivo de inflação. de forma alternativa, o difusor pode se estender através de um orifício formado em uma parede de tecido dentro do compartimento, e as partes de retenção da parede externa podem ser envolvidas ao redor do lado oposto do dispositivo de inflação. o módulo de air-bag pode ser montado em um painel de instrumentos para proporcionar proteção contra impacto no lado do passageiro no assento dianteiro sem requerer um compartimento de módulo rígido.
Abstract:
An inflator device for an inflatable restraint system. The inflator device (20) includes a tubular body (28) with a center discharge opening (42) disposed in a center portion of reduced diameter (40). First and second end closures (46,56) each join an initiator (48,58) to a respective opposing end (32,36) of the tubular body (28) to define a sealed chamber (26). First and second generant housings (70,90) are disposed within the sealed chamber (26), define generant chambers (82,102) containing a supply of generant material and include a plurality of openings providing fluid communication between the generant chambers (82,102) and the sealed chamber (26). Rupturable initiator seals (86,106) are disposed between the initiators (48,58) and a respective generant chamber (82,102). A supply of pressurized stored gas and the supply of generant material are disposed within the sealed chamber (26).
Abstract:
A hybrid inflator device for a passive restraint air bag system includes a housing defining a first chamber and a baffle passing through the first chamber. A supply of gas generant material is disposed in the first chamber and surrounds the baffle. An initiator is operative for creating a shock wave to open a burst disk and further operative to generate a hot gas to ignite the gas generant material. The initiator is disposed proximate a first end of the baffle. The baffle includes a reduced inner diameter portion and an unobstructed path extending along the length of the baffle.
Abstract:
An airbag module may have an inflator, a cushion, and a housing that contains the inflator and the cushion. The housing has an outer wall formed of a flexible material and a bracket designed to be attached to a vehicle. During deployment, the cushion is expelled out of the housing through the bracket. The inflator remains in the housing and inflation gas is conveyed to the cushion through the housing. The inflator may be retained by flaps wrapped around the inflator and secured to a perpendicularly oriented diffuser of the inflator. Alternatively, the diffuser may extend through an orifice formed in a fabric wall within the housing, and retention portions of the outer wall may be wrapped around the opposite side of the inflator. The airbag module may be mounted in an instrument panel to provide front seat, passenger's side impact protection without requiring a rigid module housing.
Abstract:
A membrane horn switch has a flexible thin front plate and a rigid, thick back-plate. The plates are coated with a conductive layer which are separated by dielectric material applied to either or both plates. The plates are attached together around their perimeters using a pressure sensitive adhesive. The switch is attached directly to an airbag cover, eliminating the need for external backing other than that which is provided by the rigid back-plate of the switch.
Abstract:
A tethered knee bolster panel (28) which is deployed rearward in the passenger compartment of an automotive vehicle during a crash to provide lower torso restraint. The knee bolster includes an air bag system (22, 24, 26) which propels the knee bolster panel rearward during deployment. The activated knee bolster allows automobile designers the flexibility to provide increased leg room in the vehicle while maintaining the same level of safety during a crash.
Abstract:
A membrane horn switch has a flexible thin front plate and a rigid, thick back-plate. The plates are coated with a conductive layer which are separated by dielectric material applied to either or both plates. The plates are attached together around their perimeters using a pressure sensitive adhesive. The switch is attached directly to an airbag cover, eliminating the need for external backing other than that which is provided by the rigid back-plate of the switch.
Abstract:
A method of joining tubular structures using friction welding is disclosed. The invention provides a method of joining a first tubular structure (11) having a conical contact surface (62) to a second tubular member (50) with an elliptical contact orifice by placing the conical surface within the contact orifice, rotating one of the structures, and pressing them together to form a weld. The invention further discloses airbag inflators constructed using the method of the invention.