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Browse Prior Art Database

Adjustable Keyboard

IP.com Disclosure Number: IPCOM000042662D
Original Publication Date: 1984-Jun-01
Included in the Prior Art Database: 2005-Feb-04
Document File: 2 page(s) / 87K

Publishing Venue

IBM

Related People

Frank, EH: AUTHOR [+5]

Abstract

In order to adjust the angle of the keyboard with respect to the typewriter or desk for operator comfort, it is necessary to provide a manually positionable device preferably within the covers of the typewriter. The figure illustrates a partially exploded view of such a structure wherein keyboard frame 10 is mounted onto support members 12. Support members 12 have formed thereon a camming and retention member 14 which, in turn, is engaged with bail 16. Bail 16 is pivotally mounted at pivot points 18 on the bottom cover 20 of the typewriter. Supports 12 are also pivotally mounted at pivot points 22 on arms 24 projecting from the bottom cover 20. Oscillation of the bail 16 is accomplished by slider 26 which may be positioned on either side of the keyboard.

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Adjustable Keyboard

In order to adjust the angle of the keyboard with respect to the typewriter or desk for operator comfort, it is necessary to provide a manually positionable device preferably within the covers of the typewriter. The figure illustrates a partially exploded view of such a structure wherein keyboard frame 10 is mounted onto support members 12. Support members 12 have formed thereon a camming and retention member 14 which, in turn, is engaged with bail 16. Bail 16 is pivotally mounted at pivot points 18 on the bottom cover 20 of the typewriter. Supports 12 are also pivotally mounted at pivot points 22 on arms 24 projecting from the bottom cover 20. Oscillation of the bail 16 is accomplished by slider 26 which may be positioned on either side of the keyboard. Camming and support member 14 is enlarged in the inset to illustrate camming surfaces 28 and
30. A gap 32 is formed in the bottom of member 14 to permit the insertion of the bail 16 into the cavity formed in support member 14. The bail may be moved from detenting position 34 to position 36 or position 38, as illustrated. Finger 40 extends below camming surfaces 28 and detenting position 38 to form the gap 32 and, at the same time, to provide a restraint engaging the underside of bail 16 such that when bail 16 is engaged with position 38, the keyboard frame 10 and support members 12 may not be raised away from bail 16. Thus, it acts as a retaining member during shipment or movement of the typew...