Browse Prior Art Database

Nonloosening Drive Key

IP.com Disclosure Number: IPCOM000087280D
Original Publication Date: 1977-Jan-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 38K

Publishing Venue

IBM

Related People

Berlier, RA: AUTHOR [+2]

Abstract

This device solves the problem of a coupling key loosening, which allows movement between a driver and a driven member and often results in the destruction of the key.

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Nonloosening Drive Key

This device solves the problem of a coupling key loosening, which allows movement between a driver and a driven member and often results in the destruction of the key.

Referring to the figures, driver 10 encircles driven shaft 11. The shaft and driver both carry right-angle slots 12. These two slots align to form a rectangular opening in which square coupling key 13 is positioned. Setscrew 14 is threaded into the driver and is tightened to engage the key.

The preferred direction of rotation is clockwise, as shown in Fig. 1. With this arrangement, the driving force is transmitted from the drive, through the key, to the shaft, without transmitting the force to the setscrew.

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