Browse Prior Art Database

Spring Wire Ring Snap Coupling

IP.com Disclosure Number: IPCOM000080172D
Original Publication Date: 1973-Nov-01
Included in the Prior Art Database: 2005-Feb-27
Document File: 2 page(s) / 37K

Publishing Venue

IBM

Related People

Vonk, J: AUTHOR

Abstract

A simple and low cost coupling device is provided which reliably connects and disconnects a driven roller to a driving arbor, and provides for simple replacement of the roller without the use of fastening tools.

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Spring Wire Ring Snap Coupling

A simple and low cost coupling device is provided which reliably connects and disconnects a driven roller to a driving arbor, and provides for simple replacement of the roller without the use of fastening tools.

The coupling consists of three parts, viz. a driving sleeve, a spring wire ring and a driven roller. The sleeve has a flat area at its outer circumference and a groove to hold the spring wire ring. The spring wire ring dimensions are determined by the required snap force. The spring wire ring is mounted with its opening opposite the flat area on the sleeve and it is prevented from rotation, e.g., by a deforming stake action on the groove. The roller is made from injection molded thermoplastics and has an extension, which has the form of a cylinder segment with a V-groove at the circumference and a chamfered front end. Both the sleeve and the roller have a hole in the center for a common shaft, as represented in Fig. 2.

It is also possible to make a lost-motion coupling by decreasing the roller extension to a smaller sector than the cutout portion of the sleeve.

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