Shaft coupling
AssigneeTeepak, Inc.
InventorHarold H. Martinek
Life of this patent
Estimating the term…
Abstract
This relates to the mounting of a control shaft for a machine. The control shaft is formed in sections and each shaft section other than a starting section is supported by a single bearing. Adjacent ends of the shaft sections are formed with projecting half-circular cross-sectional portions which are overlapped and then are clamped together by a radially expanding wedge device disposed within a sleeve encircling the shaft portions.
Claims7
A drive shaft coupling comprising first and second shafts of a preselected diameter, each of said shafts having a projecting end portion of semicircular section and including a diametrical flat, said projecting end portions being of a different length and overlapped with said flats in opposed contacting relation, a sleeve with a stepped internal diameter encircling said overlapped end portions in radially spaced relation, and an annular wedge element disposed within said sleeve and surrounding said end portions, said wedge element being wedged between said sleeve and said overlapped shaft end portions and tightly clamping said flats together to interlock said shafts in fixed relative rotational relation.
A machine drive shaft coupling comprising first and second machine shaft sections of a preselected diameter, one of said shaft sections being supported by at least two bearings disposed adjacent opposite ends thereof, the other of said shaft sections being supported by a single bearing remote from said one shaft section, each of said shafts having a projecting end portion of semicircular section and including a diametrical flat, said projecting end portions being overlapped with said flats in opposed contacting relation, a sleeve encircling said overlapped end portions in radially spaced relation, and an annular wedge element disposed within said sleeve and surrounding said end portions, said wedge element being wedged between said sleeve and said overlapped shaft end portions and tightly clamping said flats together to interlock said shafts in fixed relative rotational relation and wherein said coupling serves also to interlock said shaft sections in straight line relation.
Dependencies are inferred from the claim text.