Foldable keyboard
A foldable keyboard having a plurality of folding keyboard sections. Each keyboard section includes a frame carrying a key set having a plurality of keys. The key set may be movable laterally relative to the frame. The frame with the key set is foldable with respect to an adjacent frame. The frame provides a self-contained enclosure for the keyboard assembly when fully closed. When opened, the keyboard assembly can be a full-size standard QWERTY keyboard.
1. A keyboard assembly comprising:
a first section having a first frame and a first plurality of keys, said first plurality of keys coupled to a first base which is slidable relative to said first frame;
a second section coupled to said first section, said second section having a second frame and a second plurality of keys coupled to said second frame; and
a flexible circuit including a first panel disposed between said first plurality of keys and said first base, said flexible circuit further including a looped portion extending from said first panel, wherein said flexible circuit extends between said second frame and said second plurality of keys, and wherein said looped portion allows for lateral movement of said first plurality of keys and said first base relative to said second plurality of keys.
2. A keyboard assembly as in claim 1 , wherein said keyboard is collapsible.
3. A keyboard assembly as in claim 2 , further comprising a bottom flexible guard piece mounted under a portion of said flexible circuit and above said first frame and said second frame and being fixedly attached to said looped portion and to said second frame.
4. A keyboard assembly as in claim 1 , further comprising:
a first flexible guard piece disposed over said first frame and said second frame.
5. A keyboard assembly as in claim 4 , wherein said keyboard assembly is foldable and said first section is rotatably coupled to said second section and said looped portion moves relative to at least one of said first frame and said second frame as said first section is rotated relative to said second section.
6. A keyboard assembly as in claim 4 , wherein said keyboard assembly is foldable and said first section is rotatably coupled to said second section and said looped portion moves relative to at least one of said first frame and said second frame as said first section is rotated relative to said second section.
7. A keyboard assembly as in claim 6 , wherein at least one hinge couples said first section to said second section and wherein a portion of said flexible circuit and said first flexible guard piece extend over said at least one hinge.
8. A keyboard assembly as in claim 7 , wherein said at least one hinge comprises a double hinge.
9. A keyboard assembly comprising:
a first section having a first frame and a first plurality of keys, said first plurality of keys coupled to a first base which is slidable relative to said first frame;
a second section coupled to said first section, said second section having a second frame and a second plurality of keys coupled to said second frame; and
a flexible circuit including a first panel disposed between said first plurality of keys and said first base, said flexible circuit further including a membrane having a plurality of electrical contact pairs and a bridge portion extending from said first panel and between said second frame and said second plurality of keys.
10. The keyboard assembly of claim 9 , wherein each of said plurality of electrical contact pairs are shorted by a conductive element disposed below each of said first and second plurality of keys.
11. The keyboard assembly of claim 9 , wherein said bridge portion allows for lateral movement of said first plurality of keys and said first base relative to said second plurality of keys.
12. The keyboard assembly of claim 11 , wherein said flexible circuit includes at least one loop.