Air bag for a motor vehicle
First Claim
1. A resin air bag comprising,a thermoplastic elastomer film having a front panel and a rear panel which are fixed together at peripheries thereof, said front panel being located near a user when the air bag is inflated and said rear panel having an opening, said elastomer film having an M value between 4 and 50, the M value of the rear panel being at least equal to the M value of the front panel, said M value being defined by a formula given below:
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space="preserve" listing-type="equation">M=(S/E)×
T×
100wherein S is a tearing strength (kg/cm) per unit width (1 cm) of the thermoplastic elastomer film, E is an elongation at rupture (%), and T is a tensile strength (kg), anda first layer attached to the rear panel around the opening at a side of the front panel, said first layer having a heat resistance higher than that of the thermoplastic elastomer film.
1 Assignment
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Accused Products
Abstract
An air bag 1 made from a thermoplastic elastomer film having an M value of 4.0 or more as defined by the formula:
M=(S/E)×T×100
where S is the tearing strength (kg/cm) per unit width (1 cm) of the thermoplastic elastomer film, E is the elongation at rupture (%), and T is the tensile strength (kg).
33 Citations
8 Claims
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1. A resin air bag comprising,
a thermoplastic elastomer film having a front panel and a rear panel which are fixed together at peripheries thereof, said front panel being located near a user when the air bag is inflated and said rear panel having an opening, said elastomer film having an M value between 4 and 50, the M value of the rear panel being at least equal to the M value of the front panel, said M value being defined by a formula given below: -
space="preserve" listing-type="equation">M=(S/E)×
T×
100wherein S is a tearing strength (kg/cm) per unit width (1 cm) of the thermoplastic elastomer film, E is an elongation at rupture (%), and T is a tensile strength (kg), and a first layer attached to the rear panel around the opening at a side of the front panel, said first layer having a heat resistance higher than that of the thermoplastic elastomer film. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification