Browse Prior Art Database

Reed Relay Test Fixture

IP.com Disclosure Number: IPCOM000092012D
Original Publication Date: 1968-Aug-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Manley, TL: AUTHOR

Abstract

The testing of assembled reed relays 8 of the type shown in U.S. patent 3,160,724 is done at a very rapid rate using this fixture for supporting manipulating, and making contact with the reed relays 8, in conjunction with test circuitry. The fixture has a set of vertically extending needle contacts 10, which extend through apertures in reed relay bobbin 12. The latter contains a plurality of reed switches 14 having leads 16 extending from their ends. Relay 8 is positioned between two opposing jaws 11 and 13 on the fixture. When so positioned, contacts 10 of the fixture pass to one side of reed switch leads 16 as shown in drawing A. Jaw 11 is in engaging relationship with fluid driven piston 18. Jaw 13 is in engaging relationship with spring driven piston 20.

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Reed Relay Test Fixture

The testing of assembled reed relays 8 of the type shown in U.S. patent 3,160,724 is done at a very rapid rate using this fixture for supporting manipulating, and making contact with the reed relays 8, in conjunction with test circuitry. The fixture has a set of vertically extending needle contacts 10, which extend through apertures in reed relay bobbin 12. The latter contains a plurality of reed switches 14 having leads 16 extending from their ends. Relay 8 is positioned between two opposing jaws 11 and 13 on the fixture. When so positioned, contacts 10 of the fixture pass to one side of reed switch leads 16 as shown in drawing A. Jaw 11 is in engaging relationship with fluid driven piston
18. Jaw 13 is in engaging relationship with spring driven piston 20. The spacing between jaws 11 and 13 in their rest position can be adjusted for different size reed relays.

In operation, piston 18 moves jaw 11 and, hence, the relay 8 in the direction of arrow 22. Piston 20 engaging jaw 13 tends to oppose this motion. The distance relay 8 travels in the direction of arrow 22 is determined by the amount of force applied against piston 18. As the relay moves in the direction shown, leads 16 of switches 14 engage contacts 10 of the fixture, causing them to be deflected as in drawing B. This promotes good contact between leads 16 and contacts 10. Also, by moving the reed relays a precisely controlled distance in each instance, a uniform contact is obtained...