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Pin Board

IP.com Disclosure Number: IPCOM000094788D
Original Publication Date: 1965-Jun-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 28K

Publishing Venue

IBM

Related People

Funk, HL: AUTHOR [+2]

Abstract

A cross-connecting switchboard is formed by overlaying a ferrous magnetic plate with a printed circuit board. The latter has a series of spaced, parallel conductors formed either substantially flush with or slightly above the upper surface. A series of orthogonally disposed parallel conductors facing the first set of conductors is molded into a sheet of readily deformable plastic material. The conductors are recessed below the surface of the plastic so as to space the crossed conductors one from another. The final and uppermost layer is formed from a nonmagnetic material. The layer contains a matrical array of holes spaced to match the intersections of the crossing conductors.

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Pin Board

A cross-connecting switchboard is formed by overlaying a ferrous magnetic plate with a printed circuit board. The latter has a series of spaced, parallel conductors formed either substantially flush with or slightly above the upper surface. A series of orthogonally disposed parallel conductors facing the first set of conductors is molded into a sheet of readily deformable plastic material. The conductors are recessed below the surface of the plastic so as to space the crossed conductors one from another. The final and uppermost layer is formed from a nonmagnetic material. The layer contains a matrical array of holes spaced to match the intersections of the crossing conductors.

When a cylindrical bar magnet is inserted in any of the holes, it is attracted to the lowermost ferrous plate. Such action locally deforms the plastic and the upper conductor to effect the electrical interconnection of the conductors at the selected intersection. The magnet provides a controlled maximum deforming force to prevent damage to the switchplates.

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