Elastomeric shear shaft coupling
AssigneeReliance Electric Company
InventorHolmes A. Downey
Life of this patent
Estimating the term…
Abstract
An elastomeric shear shaft coupling is disclosed for connecting two rotatable shafts in end-to-end relationship. The coupling includes hubs for mounting on the opposed ends of the shafts and a flexible element extending between the opposed hubs. Clamping members and suitable fasteners are used to secure the element to the hubs for transmitting the torque developed by the driving shaft to the driven shaft. The flexible element has a bead of harder material than the body of the element, disposed within or at the margins of the element in the locus of clamping, and is reinforced with a matrix of plies or layers of a suitable fabric material.
Claims14
An elastomeric shear shaft coupling for connecting two rotatable shafts in end-to-end relationship, said coupling comprising:
- a. annular coupling hubs for mounting on the adjacent ends of the shafts;
- b. a generally circular flexible element of elastomeric material being of a substantially parabolic cross-sectional shape and extending between said hubs and having laterally extending right and left margins for contacting said hubs;
- c. a bead of elastormeric material, with a higher durometer value than that of the body of said element, disposed within each of said margins;
- d. a plurality of fabric plies interspersed within said elastomeric material for reinforcing said element, said plies being concentrated near the centroid of said element and terminating at each side adjacent said beads;
- e. clamping means for retaining said margins in place against said hubs;
- and
- f. fastening means for securing said clamping means and said element to said hubs.
A flexible element for an elastomeric shear shaft coupling having opposed coupling hubs and clamping members for retaining said element in operative position, said flexible element comprising:
- a. a body portion of substantially parabolic cross-sectional shape composed of elastomeric material and having laterally extending right and left margins
- b. a bead disposed in said margins and composed of elastomeric material having a higher durometer value than said body portion;
- and
- c. reinforcing plies of fabric material disposed within said flexible element in spaced layers, concentrated near the centroid of said body portion and terminating on each side in the proximity of said beads.
Dependencies are inferred from the claim text.