Invisible Hinge Assembly for Main Frame Doors and Covers
Original Publication Date: 1988-Apr-01
Included in the Prior Art Database: 2005-Feb-15
A technique is described whereby a main frame door hinge assembly is so designed so as to be invisible from the outside of a door. The design is an improvement over previous designs which required tools and mount- ing hardware for removal and positioning of the doors to the frame. (Image Omitted) When the hinge assembly is secured to a frame, the entire door is positioned in place without the use of tools and the door hinge assembly will not be visible. The door is automatically mechanically locked in place to prevent removal of the door, unless the door is in the open position. The frame door hinge assembly, as shown in Fig. 1, consists of three hinge pin subassemblies 10, 11 and 12 which are secured to frame 13. Three hinge pin receptacle units 14, are secured to cover 15 at welded positions 16, as shown in Fig. 2.