Browse Prior Art Database

FOLDING KEYBOARD

IP.com Disclosure Number: IPCOM000025978D
Original Publication Date: 1989-Jun-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 89K

Publishing Venue

Xerox Disclosure Journal

Abstract

The compactness of many pieces of modern equipment is limited by the size of the keyboard. If the keyboard could be folded up into a smaller space, the equipment could be made smaller. One possible way of doing this is shown in the Figure. When folded up, the five row of keys take much less room than when unfolded. The keys are staggered (odd rows displaced with respect to even rows by 112 a key), so the actuators of one row fit in the space between keytops and switch mi zhanisms of the adjacent rows.

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XEROX DISCLOSURE JOURNAL

FOLDING KEYBOARD Proposed Classification Martin S. Maltz U.S. C1.355/3R

Int. C1. G03g 15/00

KEYTOP

IUATOR

SWITCH

FOLDED

FIG. I

UNFOLDED

FIG. 2

Volume 14 Number 3 May/June 1989

139

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Page 2 of 2

FOLDING KEYBOARD (Cont'd)

The compactness of many pieces of modern equipment is limited by the size of the keyboard. If the keyboard could be folded up into a smaller space, the equipment could be made smaller. One possible way of doing this is shown in the Figure. When folded up, the five row of keys take much less room than when unfolded. The keys are staggered (odd rows displaced with respect to even rows by 112 a key), so the actuators of one row fit in the space between keytops and switch mi zhanisms of the adjacent rows.

Some means of keeping the keyboard rigid when unfolded is also required. One possibility is hooking together the lower (folded figure) three rows of keys with telescoping rails. The top two rows of keys would rest on these rails when the keyboard is fully open. There are many other possibilities.

The rows must also be electrically connected to the rest of the computer. This could be done with flex cabling. If flex fatigue is a problem, adjacent rows could be linked with optical couplers.

140 XEROX DISCLOSURE JOURNAL

Volume 14 Number 3 May/June 1989

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