Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Frangible member
Patent
1995-12-01
1997-04-15
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Frangible member
411 69, 411361, F16B 1304, F16B 1306
Patent
active
056202873
ABSTRACT:
A fastener structure for particular use in clamping a panel assembly includes a bolt or pin member having a generally elongate shank for extension through a panel, and a locking-recess in the shank for reception of a locking formation. The pin shank is insertable through a sleeve having a bore which terminates at an anvil portion surrounding the inserted pin shank. A lock collar is insertable into the sleeve bore radially between the shank locking-recess and the sleeve into abutment against the anvil portion of the sleeve. Compression of the locking collar against the abutting anvil portion of the sleeve produces cold flow deformation of a portion of the collar into the locking-recess of the shank to form a locked joint so that the collar then blocks any subsequent relative movement between the pin shank and sleeve to secure the fastener structure.
REFERENCES:
patent: 4405256 (1983-09-01), King, Jr.
patent: 4784551 (1988-11-01), Kendall
patent: 4846611 (1989-07-01), Sadri et al.
patent: 4984947 (1991-01-01), Flauraud
Textron Inc.
Wilson Neill R.
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