Joints and connections – Interfitted members – Radially interposed shim or bushing
Patent
1990-03-05
1991-08-13
Cuomo, Peter M.
Joints and connections
Interfitted members
Radially interposed shim or bushing
403371, F16B 214
Patent
active
050392450
ABSTRACT:
In the clamping assembly of this invention, whereby a rotary cutting tool is concentrically clamped to an untapered shaft that carries and drives it, a sleeve-like radially elastic collet, received in a bore through a hub-like tool body part, has a threaded end portion which projects axially beyond the bore and on which a nut is rotatable. The collet has an untapered radially inner surface and a tapered radially outer surface that progressively increases in diameter from the thread to its opposite end. The bore, all along its length, defines a matingly tapering inner wedging surface in the body part. The collet is confined to axial shifting relative to the body part. The nut is confined to rotation by a radially outwardly projecting circumferential flange on it, overlain by an annular captivating plate secured to the body part. Turning the nut in one direction shifts the collet axially in the direction to cause the tapering surfaces to contract the collet for radial clamping to the shaft and wedgingly lock it to the body part; opposite rotation of the nut compels opposite axial shifting of the collet for positive release of the assembly from the shaft.
REFERENCES:
patent: Re25318 (1963-01-01), Benjamin et al.
patent: 2381697 (1945-08-01), Shepard
patent: 2470179 (1949-05-01), McCloskey
patent: 2475042 (1949-07-01), McCloskey
patent: 2657933 (1953-11-01), Stuebner
patent: 2695787 (1954-11-01), Sunnen
patent: 4202644 (1980-05-01), Soussloff
patent: 4304502 (1981-12-01), Stratienko
patent: 4600334 (1986-07-01), Soussloff
patent: 4615640 (1986-10-01), Hosokawa
Cuomo Peter M.
North American Products Corp.
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