| 摘要 |
An apparatus ( 10 ) helps protect an occupant ( 14 ) of a vehicle ( 12 ). The apparatus ( 10 ) includes an inflatable vehicle occupant protection device ( 22 ) inflatable between a steering wheel ( 30 ) of the vehicle ( 12 ) and the vehicle occupant ( 14 ). A housing ( 26 ) helps support the protection device ( 22 ) on the steering wheel ( 30 ). A cover ( 40 ) helps conceal the protection device ( 22 ) in a stored condition on the steering wheel ( 30 ). The housing ( 40 ) includes a retainer element ( 132 ) that extends from a side wall ( 124 ) of the housing. The retainer element ( 132 ) includes a base portion ( 232 ) and a head portion ( 234 ). The cover ( 40 ) includes a retainer aperture ( 230 ) through which the head portion ( 234 ) is extendable to help secure the cover to the housing ( 26 ). The head portion ( 234 ) has a dimension that is greater than a diameter of the retainer aperture ( 230 ). The cover ( 40 ) is configured to deform elastically to enlarge the retainer aperture ( 230 ) to fit over the head portion ( 234 ) and thereafter return to its non-deformed condition to form an interference that helps retain the cover on the retainer element ( 132 ).
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