Screw terminal for an electrical connection of cables or wires

Details Screw terminal for an electrical connection of cables or wires Screw terminal for an electrical connection of cables or wires

1996-04-30

1998-05-05

Kincaid, Kristine L.

Electricity: conductors and insulators

Conduits, cables or conductors

Combined

439812, H01R 434

Patent

active

057477418

ABSTRACT:
A screw terminal for an electrical connection of an eye of a cable comprises a casing, a first clamping plate axially movably but not rotatably mounted in the casing, the axial movement of the first clamping plate being limited by an inner surface of the casing. The first clamping plate defines a taphole and has laterally bent up, axially extending spring tongues. A second clamping plate is fixedly mounted in the casing, the second clamping plate defining a taphole axially aligned with the tap hole in the first clamping plate. A clamping screw axially moves the first clamping plate between a closed position and an open position limited by the inner casing surface wherein the space between the first clamping plate and the second clamping plate has a maximum axial length. The clamping screw comprises a screwhead held in the open position between the spring tongues of the first clamping plate and an axially extending shaft passes first through the taphole of the first clamping plate and then through the taphole of the second clamping plate in the closed position. The shaft comprises a threaded section engaging the tapholes, a constricted neck between the screwhead and the threaded section, and a threadless free end having a diameter smaller than the diameter of the tapholes and an axial length not exceeding the thickness of the first clamping plate base section.

REFERENCES:
patent: 723082 (1903-03-01), Turner
patent: 1979582 (1934-11-01), Stolp
patent: 2231868 (1941-02-01), Allen
patent: 4059335 (1977-11-01), Simon
patent: 4531797 (1985-07-01), Jullien et al.
patent: 4830627 (1989-05-01), Heng et al.
patent: 5249989 (1993-10-01), Alsch

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