FOLDING KEYBOARD FOR PORTABLE ELECTRONIC HARDWARE AND COMMUNICATION APPLIANCES Russian patent published in 2008 - IPC G06F3/00 

FIELD: electricity.

SUBSTANCE: keyboard folds along crosswise axis. When folded, both its parts cover completely or partially two main surfaces of the portable electronic device. The casing of portable electronic device or communication appliance is hinged, in its lower part, to one of the keyboard parts or is fixed onto guides on the said parts. The hinge allows the casing to rotate in the plane parallel to the keyboard plane, while the guides allow it to move in the above plane. Unfolding the keyboard is effected in two stages, i.e. first, one its half is swung up to open on the surfaces of the said devices allowing to input some symbols from the keyboard. Second, the casing of the portable electronic device is turned around on the hinge arranged on the keyboard second half or moved on the guides till a complete opening of the second working part of the keyboard.

EFFECT: ease of use, increased speed of data input from the keyboard.

6 cl, 7 dwg