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Browse Prior Art Database

Drive Coupling

IP.com Disclosure Number: IPCOM000050445D
Original Publication Date: 1982-Oct-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 37K

Publishing Venue

IBM

Related People

Olson, ST: AUTHOR [+2]

Abstract

The present structure provides an aligned concentric motor to lead-screw coupling, which also provides for flexible vibration damping.

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Drive Coupling

The present structure provides an aligned concentric motor to lead-screw coupling, which also provides for flexible vibration damping.

With reference to the drawing, coupling 1 is a molded member, one end of which has an internal configuration such that it corresponds to and receives rectilinear surfaces 4 and 5 of motor shaft 2. The coupling further contains a flat internal surface 6 which mates with flat surface 3 on lead screw 7. These three flat surfaces reduce the torque load burden resulting from friction produced when the screws 8 are inserted into openings 9 on the coupling member 1 and tightened.

Concentricity and axial alignment are assured between the shafts through the use of a common core pin used in the mold to establish the inside diameters of the coupling member. In addition, oscillations present in the driving mechanism due to misalignments are minimized by molding the coupling member 1 out of a polymeric material which is easily flexible. However, as far as torsion is concerned, the coupling member has acceptable torsional stiffness.

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