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Browse Prior Art Database

Selection Pin Interlock

IP.com Disclosure Number: IPCOM000082848D
Original Publication Date: 1975-Feb-01
Included in the Prior Art Database: 2005-Feb-28
Document File: 2 page(s) / 85K

Publishing Venue

IBM

Related People

Henderson, RB: AUTHOR [+3]

Abstract

Interlocks are required between selection pins in a pin selection system, to prevent multiple pins from being selected and engaged with another element simultaneously.

This text was extracted from a PDF file.
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Selection Pin Interlock

Interlocks are required between selection pins in a pin selection system, to prevent multiple pins from being selected and engaged with another element simultaneously.

This is accomplished by the use of a displaceable plurality of interlocks members 10. As one pin 12 is activated and moved downward in Fig. 2, the conical surfaces 14 act to displace its adjacent interlocking members 10 laterally. As illustrated in Fig. 3, it can be seen that the conical surface 14 of pin 12 has displaced the two adjacent interlock members 10 laterally, such that they now will not permit the adjacent pins 16 to move. The displacement of these two interlock members 10 by conical surface 14 on pin 12 has a chain reaction effect, displacing interlock numbers 10 engaged with pins 18. This prevents any other pin other than the one which is moved first from translating and, therefore, prevents a malselection or engagement.

An alternative approach is illustrated in Figs. 4 and 5. Displaceable pin member 12 together with pins 16 and 18 extend through interlock plate 20. When the plate 20 is aligned with pin 12 to allow the conical portion of pin 12 to pass through the opening in plate 20, the enlarged opening 22 is positioned such that there is interference with both pin 16 and 18. If pin 16 is activated then the plate 20 will translate slightly to the left, fully locking pin 18 and engaging pin 12 to prevent its movement.

A further embodiment of the interlocking sc...