Roof rib finder and fastening device using an inductive switch

摘要

A roof rib finder and fastening device using an inductive switch whereby ribs in a roofing structure can be located and a signal given to an operator to lower and actuate a screw loading device to enable the installation of a screw through an opening in a washer to achieve securement of the screw-washer combination to a rib in a roofing structure; the device includes a support frame, a screw loading device, a washer retaining device and an inductive proximity switch including an adjustable sensing distance potentiometer secured to a support frame as well as a light to indicate to the installer that the proper position on the roofing structure immediately above a rib has been located.