Portable electronic device case modular keyboard system

Abstract

This application relates to a modular device enclosure including a frame assembly, keyboard assembly, trim member, and a tablet-shaped electronic device. The frame includes side portions, flange portions, recessed structures, and standoffs that enable precise positioning and retention of the keyboard assembly. The keyboard assembly includes sidewalls, a coupling structure with tab members and apertures, and a front interface with a keypad and trackpad. A trim member includes boss members for coupling with the keyboard assembly and is positioned to conceal and protect coupling features. A tablet-shaped electronic device may be received within the frame and cooperate with the keyboard and trim. The assemblies may be reversibly coupled to allow easy removal, secure engagement, and low-profile stowing. Exploded and assembled views illustrate the configuration in open and closed orientations. In various implementations, the assemblies are positionally indexed, and designed to accommodate tactile input and electronic interface with a touch-sensitive display.