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Mechanical Motion Converter

IP.com Disclosure Number: IPCOM000076821D
Original Publication Date: 1972-Apr-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 60K

Publishing Venue

IBM

Related People

Schaefer, JO: AUTHOR

Abstract

Output shaft 10 is moved varying angular increments by cam 11, which definers a predetermined motion profile, by distances determined by the preset orientation of ramp 12, under control of information representing the start position and the desired finish position of the shaft 10. Shaft 10 thus can position an output member, such as a type element 13, to present a character 14 to a print hammer 15 under control input from a multiposition vane 16.

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Mechanical Motion Converter

Output shaft 10 is moved varying angular increments by cam 11, which definers a predetermined motion profile, by distances determined by the preset orientation of ramp 12, under control of information representing the start position and the desired finish position of the shaft 10. Shaft 10 thus can position an output member, such as a type element 13, to present a character 14 to a print hammer 15 under control input from a multiposition vane 16.

In the rest position, tooth 17 of ramp 12 is engaged by detent arm 18 and tooth 19 of positioning lever 20 is free from detent arm
21. Selection of a new character 14 is accomplished by positioning member 16, to a position that is uniquely related to the desired character. This motion displaces arm 20 through rod 22 to align tooth 19 with a corresponding tooth on detent arm 21. Cam 11 is caused to rotate and through cam track 23 causes follower 24 to rise.

Cam surface 25 further acts on follower 26 of arm 21, to bring the teeth of arm 21 into holding engagement with tooth 19. The combined position of tooth 19 and tooth 17 orient the ramp 12 at an angle, indicative of the distance to be traveled of the output shaft 10.

Pin 27 follows the angle of ramp 12 as it is driven upwardly through link 28, and is moved rightwardly, under the guidance of ramp 12, to pivot bell crank 29 and drive rack 30 by motion profiled according to cam 23 and measured by ramp 12.

After follower 24 has reached the extent...