Key holder and key

Abstract

Abstract AN IMPROVED KEY HOLDER AND A NOVEL KEY DESIGNED FOR USE WITH THE IMPROVED KEY HOLDER. THE NOVEL KEY INCLUDES A CONVENTIONAL SHANK PORTION AND A HEAD PORTION HAVING OPENING MEANS INCLUDING A HOLE AND A GROOVE THEREIN, WITH THE GROOVE EXTENDING FROM THE HOLES TO THE OUTER MARGIN OF THE HEAD PORTION AND WITH THE WIDTH OF THE NARROWEST PART OF THE GROOVE BEING LESS THAN THE DIAMETER OF THE HOLE. THE IMPROVED KEY HOLDER INCLUDES A RESILIENT TUBE WHICH EXTENDS THROUGH THE HOLE IN THE KEY WHEN THE KEY IS HELD IN THE KEY HOLDER. A BAR EXTENDS THROUGH THE TUBE AND NORMALLY PREVENTS KEYS FROM BEING ADDED TO OR REMOVED FROM THE TUBE BECAUSE THE COMBINED MAXIMUM DIMENSION OF THE BAR AND TUBE, EVEN WHEN THE TUBE IS RADIALLY COMPRESSED, IS GREATER THAN THE WIDTH OF THE NARROWEST PART OF THE GROOVE. HOWEVER, WHEN IT IS DESIRED TO ADD OR REMOVE A KEY FROM THE KEY HOLDER, THE BAR IS WITHDRAWN FROM THE TUBE TO PERMIT THE TUBE TO BE RADIALLY COMPRESSED TO AN EXTENT THAT THE KEY MAY BE PULLED OR PASSED OVER THE TUBE.

Inventors

• 👤 David H Humphrey

Bibliographic Details