| 摘要 |
A fastener assembly for installation within a work piece, the fastener assembly including a bolt, a retainer ring, and a housing that houses the retainer ring. The housing is positioned at and engages one side of the work piece, while the bolt is inserted into a hole of the work piece on an opposite side thereof. The retainer ring engages the bolt such that a plurality of pressure pads extending from a plurality of corresponding spring beam elements of the retainer ring reside in an annular groove of the bolt. The housing captivates the bolt onto the work piece, while providing a positive hold out of the bolt. |
| 主权项 |
1. A fastener, comprising:
a bolt having an elongated shank portion adapted to be positioned within an opening of a work piece, the work piece having a first side and a second side opposite the first side, the elongated shank portion having a first end, a second end opposite the first end, a head formed at the first end, a threaded portion having a plurality of external bolt threads, the threaded portion being adapted to extend past the second side of the work piece, and an annular groove formed proximate to the second end; and a retainer ring including an outer ring having an interior surface and at least one spring beam element extending from the interior surface, wherein the at least one spring beam element includes an elongated arm having a first end attached to the interior surface, a free, second end opposite the first end, and a tab portion formed at the second end, wherein when the bolt engages the retainer ring, the at least one spring beam element displaced and expands radially from a free position an expanded position in order to enable the bolt to travel through the retainer ring, and wherein when the retainer ring engages and aligns with the annular groove of the bolt, the at least one spring beam element springs back to its free position.
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