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Browse Prior Art Database

Connector Interlock

IP.com Disclosure Number: IPCOM000045392D
Original Publication Date: 1983-Mar-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Cassell, JN: AUTHOR [+2]

Abstract

As shown in Fig. 1, conventional connectors 10, designed to receive a cartridge 12 containing a programmed read-only memory, include a cam key 14 which should be turned before inserting or removing the cartridge 12. By turning the cam key 14 from the position shown to the dashed position, the connector jaws 16 are opened to allow the easy insertion or extraction of the cartridge 12. However, the cartridge 12 may be inserted or removed without opening the jaws 16. If this happens, the metal to metal wiping and wearing action of the cartridge contact points 18 to those of connector jaws 16 eventually result in the deterioration of the contacts. Cartridge 12 may also be only partially inserted or extracted, resulting in a bad or missing action.

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Connector Interlock

As shown in Fig. 1, conventional connectors 10, designed to receive a cartridge 12 containing a programmed read-only memory, include a cam key 14 which should be turned before inserting or removing the cartridge 12. By turning the cam key 14 from the position shown to the dashed position, the connector jaws 16 are opened to allow the easy insertion or extraction of the cartridge 12.

However, the cartridge 12 may be inserted or removed without opening the jaws 16. If this happens, the metal to metal wiping and wearing action of the cartridge contact points 18 to those of connector jaws 16 eventually result in the deterioration of the contacts. Cartridge 12 may also be only partially inserted or extracted, resulting in a bad or missing action.

Referring to Fig. 2, the cam 14 is replaced by an interlock 20.

Interlock 20 causes the jaws 16 of connector 10 to be always opened until cartridge 12 is entirely inserted. The interlock 20 differs from the conventional cam key 14 shown in Fig. 1 in that the interlock 20 locks the font cartridge when it is properly inserted and in place. A hole 22 is molded into the cartridge 12, and the interlock 20 is inserted into the hole 22 after the cartridge 12 is properly inserted. At this point, cartridge 12 is physically locked in place. To remove cartridge 12, the operator must open interlock 20 which simultaneously opens connector 12, thereby avoiding any wearing or wiping on the contact points. Furthermore, ca...