Strain relief device for an electrical supply line

Details Strain relief device for an electrical supply line Strain relief device for an electrical supply line

1980-05-19

1982-04-06

Askin, Laramie E.

Electricity: conductors and insulators

Conduits, cables or conductors

Single duct conduits

24134R, 24134L, 174135, 339103R, H01R 13585, H02G 318

Patent

active

043237258

ABSTRACT:
A strain relief device, especially for power tools, has a pin upon which is pivotally mounted a clamping member with a spirally curved rough clamping surface which coacts with a second clamping surface. An electrical line is inserted between these surfaces and the clamping member is swung thereby applying a clamping force to the electrical line. When strains are applied to the line, the clamping member provides an increased clamping force by swiveling so that a section of the member of larger diameter presses the line against the second clamping surface. A lock mechanism is also provided to prevent the electrical line from being pushed further into the housing.

REFERENCES:
patent: 849896 (1907-04-01), Griffith
patent: 1828801 (1931-10-01), Finlayson
patent: 2193383 (1940-03-01), Salzer
patent: 3546502 (1970-12-01), Botefuhr et al.

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