| 摘要 |
A tension indicator for use with a fastener that is formed from a stack of conical washers confined in the stack by a cage having a longitudinally extending slot formed therein provides readily discernible visual indication of tension or loss of tension in the fastener joint. The indicator includes a body configured for receipt over the stack of conical washers. The body can include at least one stanchion extending inwardly of the body from the interior surface to define a stanchion end longitudinally spaced from the body end. At least one detent extends inwardly of the body and is longitudinally spaced from the body end. When the stack of conical washers is placed under tension with the uppermost washer in a planar condition, the stanchion lies adjacent the uppermost washer at the interior region. When the stack of conical washers is under a tension insufficient to urge the uppermost washer into the planar condition, the stanchion abuts the uppermost washer at the interior region and the detent is disengaged from the slot in the cage side portion to prevent the cap from securing to the fastener. The body can include an opening for receipt of a gauge for contacting the interior region of the uppermost washer and for determining a height difference between the outer periphery of the uppermost washer and the interior region of the fastener.
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