QUICK ACTING, HIGH TENSILE, BLIND FASTENER

摘要

Rotation of a cam brings a first cam surface to bear on the driving side of a sheet and forces the head of a drawbolt to expand the fingers of an expansible sleeve radially outward for subsequent engagement of the blind side of another sheet. Continued rotation of the cam brings a second cam surface into engagement with the driving side of the sheet to draw the expanded sleeve against the blind side, clamp the sheets together, and form a joint.