Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Cap over the head
Patent
1994-09-23
1996-03-26
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Cap over the head
411431, 411910, F16B 1900, F16B 3300
Patent
active
055015590
ABSTRACT:
A screw connection includes a first component having an outer surface and a countersunk bore extending from the surface and having a cylindrical portion adjoining the outer surface of the first component. There is further provided a second component adjoining the first component. A screw passes through the countersunk bore and extends into the second component for joining together the first and second components. The screw includes a screw head having an end face which is recessed relative to the outer surface. A disk is press-fitted into the cylindrical portion of the countersunk bore. The disk has a surface oriented toward the end face of the screw head. The disk surface has a center part which is in direct or indirect contact with the end face of the screw head. A circumferential marginal part of the disk is at a clearance from the end face of the screw head whereby an externally applied pressing force on the disk at a disk location spaced from the center part causes a rocking motion of the disk.
REFERENCES:
patent: 264776 (1882-09-01), Sharp
patent: 3065662 (1962-11-01), Spoehr et al.
patent: 3405595 (1968-10-01), Peterson
patent: 4394096 (1983-07-01), Stevens
patent: 4621230 (1986-11-01), Crouch et al.
Lenherr Harald
Strohner Franz
SIG - Schweizerische Industrie-Gesellschaft
Wilson Neill R.
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