Flexible coupling

Patent metadata

Field	Value
Publication number	US-10415648-B2
Application number	US-201415111526-A
Country	US
Kind code	B2
Filing date	Jan 14, 2014
Priority date	Jan 14, 2014
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

A flexible coupling comprises a flexible torque disc ( 24 ) having a first plurality of fixing points ( 24 a ) whereby it can be mounted upon a first rotatable component ( 12 ), in use, and a second plurality of fixing points ( 24 b ) whereby it can be mounted upon a second rotatable component ( 14 ), in use, a support ring ( 26 ), and mounting means ( 34 ) whereby the flexible torque disc ( 24 ) is secured to the support ring ( 26 ), the mounting means ( 34 ) restricting deflection of the flexible torque disc ( 24 ) relative to the support ring ( 26 ).

First claim

The invention claimed is:

1. A flexible coupling comprising:
a flexible torque disc having a first plurality of fixing points whereby it can be mounted upon a first rotatable component, in use, and a second plurality of fixing points whereby it can be mounted upon a second rotatable component, in use;
a support ring; and
bushes, whereby the flexible torque disc is secured to the support ring, the bushes restricting deflection of the flexible torque disc relative to the support ring;
wherein each bush is attached to a respective first fixing point of the flexible torque disc,
wherein each bush extends through an opening of non-circular shape provided in the support ring;
wherein the bush defines a stop engageable with the support ring to limit movement of the part of the flexible torque disc adjacent the bush away from the support ring; and
wherein each bush is of one piece form, arranged to be fitted through the opening in the support ring, and moved angularly relative to the support ring to prevent withdrawal of the bush from the opening.

2. A coupling according to claim 1 , wherein the bushes further serve to secure the first fixing points of the flexible torque disc to the first rotatable component.

3. A coupling according to claim 1 , wherein the second fixing points of the flexible torque disc, and support ring, are secured to the second rotatable component at locations remote from the bushes.

4. A coupling according claim 1 , wherein the flexible torque disc includes three equiangularly spaced first fixing points and three equiangularly spaced second fixing points, the second fixing points each being located midway between a respective pair of the first fixing points.

5. A coupling according to claim 1 , wherein the stop is defined by a first flange formed on the bush.

6. A coupling according to claim 5 , wherein each bush further includes a second flange spaced from the first flange by a distance greater than the thickness of the support ring, part of the support ring being located between the first and second flanges.

7. A coupling according to claim 1 , wherein the bush is designed to hold a nut captive thereto.

8. A coupling according to claim 7 , wherein the bush includes a diametrically extending passage in which the nut is fitted.

9. A coupling according claim 1 , wherein the bushes and the flexible torque disc are bolted to the first rotatable component.

Assignees

• Crompton Technology Group Ltd

Inventors

• Chase Ian
• Hadley Kevin
• Caton Matthew

Classifications

• F16D3/78 Primary

  shaped as an elastic disc or flat ring, arranged perpendicular to the axis of the coupling parts, different sets of spots of the disc or ring being attached to each coupling part, e.g. Hardy couplings · CPC title