Film airbags
First Claim
1. An inflatable airbag for a vehicle which is deployed in the event of an accident involving the vehicle to provide protection for an occupant of the vehicle, comprising:
- a plurality of ribbons coupled together to define an enclosed, fluid-retaining space; and
a layer of film laminated on at least one of an outer side of the woven ribbons and an inner side of the ribbons.
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Accused Products
Abstract
Inflatable airbag for a vehicle which is deployed in the event of an accident involving the vehicle to provide protection for an occupant of the vehicle includes a plurality of ribbons coupled together to define an enclosed, fluid-retaining space and a layer of film laminated on at least one of an outer side of the woven ribbons and an inner side of the ribbons. The ribbons may be made from polypropylene, polyethylene, polyester or polyamide and the layers of film may be made from polyethylene, polyurethane, polyester or polyamide. The ribbons and layers of film may be made of the same or different materials.
51 Citations
29 Claims
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1. An inflatable airbag for a vehicle which is deployed in the event of an accident involving the vehicle to provide protection for an occupant of the vehicle, comprising:
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a plurality of ribbons coupled together to define an enclosed, fluid-retaining space; and a layer of film laminated on at least one of an outer side of the woven ribbons and an inner side of the ribbons. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for forming an inflatable airbag for a vehicle which is deployed in the event of an accident involving the vehicle to provide protection for an occupant of the vehicle, comprising:
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coupling a plurality of ribbons together to define an enclosed, fluid-retaining space; and laminating a layer of film on at least one of an outer side of the woven ribbons and an inner side of the ribbons. - View Dependent Claims (13, 14, 15)
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16. A method for forming an inflatable airbag for a vehicle which is deployed in the event of an accident involving the vehicle to provide protection for an occupant of the vehicle, comprising:
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providing a plurality of pieces of airbag material, the pieces having substantially the same thickness and composition; and joining the pieces together at seams using an elastomer such that the elastomer constitutes a bonding agent for joining the pieces of material together and stress at the seams is distributed along the seams and possibly into the seams. - View Dependent Claims (17, 18)
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19. A method for forming an inflatable film airbag for a vehicle which is deployed in the event of an accident involving the vehicle to provide protection for an occupant of the vehicle, comprising:
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coupling a first airbag portion to a second airbag portion to define an enclosed, fluid-retaining space sealed at a seam between the first and second airbag portions; each of the first and second airbag portions being produced by providing at least two uniaxially oriented films each comprising a set of uniaxially oriented ribbons, the ribbons in each of the films being stretched in a single direction to provide the uniaxial orientation and; attaching the uniaxially oriented films together in a state in which each of the films having sets of ribbons has a different orientation direction such that the films ribbons in one set are at a non-parallel angle to one another the ribbons in another set; and weakly laminating the films together at least one film layer to the uniaxially oriented films, the airbag being made only from film. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification