Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Internally threaded fastener element – e.g. – nut – etc. – Multipart
Patent
1996-03-06
1997-09-02
Lindsey, Rodney M.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Internally threaded fastener element, e.g., nut, etc.
Multipart
411291, 411290, 411288, F16B 2900
Patent
active
056624450
ABSTRACT:
A compact locking nut has a body provided with a threaded bore along which the nut engages a thread so that upon rotation it will advance over a thread to a position suitable for securing and positioning a machine component such as a bearing. The nut has a machined back face along which it bears against the secured machine component and a front face at its other end. The body contains two grooves--one external in that it opens outwardly from the exterior surface and the other internal in that it opens into the bore--and these grooves divide the body into a clamping section, a locking section, and an intervening web which is thin enough to flex with relative ease. The external groove lies closest to the back face, whereas the internal groove lies closest to the front face. On its exterior the body has lands which extend out to the front face. Typically, the body derives from a forging having the lands and a bore. The threads, the two grooves, and the back face are all machined while the body is gripped along its lands in a chuck with the front face in the chuck. In other words, essentially all of the machining is performed in a single setup. Machine screws pass through the locking section and web and thread into the clamping section, and when turned down drive the locking section over the clamping section to jam the threads of the nut on the thread engaged by the nut. The nut may as be provided in an inside-out variation.
REFERENCES:
patent: 171898 (1876-01-01), Wiles
patent: 609144 (1898-08-01), Goddin
patent: 2391712 (1945-12-01), King et al.
patent: 2421254 (1947-08-01), Froelich
patent: 4557652 (1985-12-01), Lungren
Harbottle William E.
Joki Mark A.
Conley Fredrick
Lindsey Rodney M.
The Timken Company
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