Wire conducting rotary coupling having separate torque conductin

Details Wire conducting rotary coupling having separate torque conductin Wire conducting rotary coupling having separate torque conductin

1988-10-31

1990-06-26

Kashnikow, Andres

Electricity: transmission to vehicles

Flexible extensions

Reels

244159, 439 13, H02G 1100

Patent

active

049364278

ABSTRACT:
A rotary coupling for transmitting torque across a plurality of flexible electrical wires is disclosed herein. The coupling generally comprises a tubular assembly for resisting flexure loads applied to the coupling that has a fixed portion and a rotatable portion, and a shaft member concentrically disposed within the tubular assembly for transmitting torque. First and second connectors are mounted around the inner wall of the fixed and rotatable portions of the tublular assembly, respectively and the second connector mechanically mounts the rotatable portion of the tubular assembly with the shaft member. A plurality of flexible electrical wires are disposed between the inner wall of the tubular assembly and the outer wall of the shaft member. Each of these wires includes a slack poriton which is loosely wound around the shaft member and connected at either end to the first and second connectors, respectively. The disposition of the electrical wires within the tubular assembly obviates the need for a separate housing around the rotary coupling, and the provision of a mechanically separate flexure-resisting tubular assembly and torque-transmitting shaft results in a coupling having an advantageously small diameter.

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