Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Bulged by axially contracting ends
Patent
1982-06-29
1989-07-04
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Bulged by axially contracting ends
411 43, 411 70, F16B 1304
Patent
active
048446734
ABSTRACT:
A blind bolt for securing workpieces including a sleeve, pin and lock collar, and generally being of the non-sleeve-expanding type (i.e., non-hole-filling), and adapted to have said sleeve in clearance in openings, said pin adapted to form a bulbed head on the sleeve shank, a pin stop defined by engageable shoulders on pin and said sleeve, a lock pocket defined by a conical bore portion in said sleeve and an annular lock groove in said pin when positioned in alignment by said pin stop, said conical bore portion terminating in an axially straight counterbore, an annular lock ring located within said counterbore and adapted to be engaged by a single action tool, said tool having means for gripping the pin and an anvil for engaging said lock ring and for applying a relative axial force between said pin and said sleeve via lock ring, said lock ring being urged against said conical bore portion, the angle of said conical bore portion selected to permit movement of said lock ring into said lock pocket at a preselected load while maintaining the frictional force against the pin (prior to engagement) below a preselected magnitude whereby said lock ring will move into said lock pocket to cooperate with said pin stop to prevent axial movement of said pin resulting from radial expansion of said sleeve.
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Huck Manufacturing Company
Wilson Neill R.
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