Importance

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Abstract

The automatic wire puller of the present invention provides an apparatus allowing one electrician to pull wire through conduit sections. The wire puller employs standard fish tape reels, is directly mountable to an electric outlet box and provides a reversible drive motor for playout or take up of the fish tape. A releasable catch maintains the handle of the standard plastic fish tape reel in a stationary position during rotation of the reel holder. The invention includes a first torque sensor to disable the drive motor should the fish tape become snagged during take up and a second torque sensor to deactivate the motor if the fish tape becomes snagged during playout thereby preventing damage to the fish tape, the wire being pulled, or the conduit which could occur if continued force was applied to the snagged fish tape. A completion sensor releases the handle of the fish tape reel when take up is complete and a shut off sensor then disengages the motor drive. Local and remote control of the invention is provided to allow the electrician to operate from either end of the conduit through which the cable is being pulled to monitor and guide the pulling operation as required.

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First Claim