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Browse Prior Art Database

Setup Keyboard Mechanism

IP.com Disclosure Number: IPCOM000093972D
Original Publication Date: 1966-Apr-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Hyden, IF: AUTHOR

Abstract

This setup keyboard mechanism is arranged to be easily extended in modular fashion. Basic module 10 comprises a plurality of keying members 11 and a plurality of permutation bars 12. A plurality of raised portions 14 is provided on bars 12. An extended portion 16 of members 11 contacts raised portions 14 as members 11 are actuated by a rocking motion about pivots 18. Bars 12 having raised portions 14 corresponding to the actuated key are moved to the right. Corresponding switches 20 are moved to the actuated position by tab 30 to produce an electrical output signal corresponding to the selected key.

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Setup Keyboard Mechanism

This setup keyboard mechanism is arranged to be easily extended in modular fashion. Basic module 10 comprises a plurality of keying members 11 and a plurality of permutation bars 12. A plurality of raised portions 14 is provided on bars 12. An extended portion 16 of members 11 contacts raised portions 14 as members 11 are actuated by a rocking motion about pivots 18. Bars 12 having raised portions 14 corresponding to the actuated key are moved to the right. Corresponding switches 20 are moved to the actuated position by tab 30 to produce an electrical output signal corresponding to the selected key.

Bars 12 are held in the actuated position until the electrical signals are utilized. At this time, reset solenoid 22 removes pawl 24 from a notch in bars 12 so that they are then reset to the left by the force of return springs 26. Thus, a flexible arrangement is provided. Any desired number of the basic modules can be mounted side by side to provide the desired number of characters. The code chosen to represent the characters can be varied by changing the configuration of the permutation bars and the location of tabs 14.

Instead of using switches 20, a plurality of shutters 28, can be provided to be operated by a projection 30 on bars 12. Shutters 28 have a plurality of coded slots 32. These are positioned to be uniquely aligned for a particular coded character represented by the depressed key. A source of light 34, such as a neon bulb, is pr...