Browse Prior Art Database

Self Tightening Power Cord Strain Relief

IP.com Disclosure Number: IPCOM000045306D
Original Publication Date: 1983-Mar-01
Included in the Prior Art Database: 2005-Feb-06
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Shueh, SB: AUTHOR

Abstract

This one-piece (except for one mounting screw) power cord strain relief device comprises a pair of overlapping arcuate member portions arranged for eventually encircling the cord to be fastened to a machine frame. A flexible hinge portion is arranged at one end of the device near the arcuate portions. This hinge portion leads to a strap portion shaped to overlie the arcuate members and extends on to a terminating portion ultimately to overlie a similar terminating portion at the other end of the device. These two terminating portions have screw holes ultimately in registry for fastening the device. In addition to the overlapping of the arcuate members, the hinge portion has a tongue-shaped member which presses on one of the arcuate members and forces them into intimate contact with the cord to hold it against strain.

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Self Tightening Power Cord Strain Relief

This one-piece (except for one mounting screw) power cord strain relief device comprises a pair of overlapping arcuate member portions arranged for eventually encircling the cord to be fastened to a machine frame. A flexible hinge portion is arranged at one end of the device near the arcuate portions. This hinge portion leads to a strap portion shaped to overlie the arcuate members and extends on to a terminating portion ultimately to overlie a similar terminating portion at the other end of the device. These two terminating portions have screw holes ultimately in registry for fastening the device. In addition to the overlapping of the arcuate members, the hinge portion has a tongue-shaped member which presses on one of the arcuate members and forces them into intimate contact with the cord to hold it against strain.

The drawing illustrates the principle. A body block portion 10 has an aperture 12 near one end for a fastening screw. Near the other end of the body block, a pair of arcuate members 14,16 are molded in an "open" attitude over a "trough"
18. The configuration of the inner surfaces of these three parts is such that a substantially cylindrical surface grips the cord when the arcuate members 14,16 are pressed into engagement with the cord.

A "strap" portion 20 is hinged at the other end of the body block. Near the body block there is a tongue-shaped member 22 which is shaped to press against the longer arcuate mem...