Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Patent
1994-09-30
1996-03-26
Picard, Leo P.
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
361796, 361752, 174 17R, 439154, 439327, H05K 714
Patent
active
055026222
ABSTRACT:
A retaining clip to retain a circuit board insertion/extraction handle on a circuit board. The present invention is a retaining clip which is part of a circuit board inserter and extractor apparatus particularly suited for use with circuit boards utilizing high insertion force connectors requiring in excess of 50 lbs of force. The handle of the inserter/extractor has novel insertion and extraction surfaces which cooperate with corresponding surfaces fabricated as part of a card guide. As the circuit board is inserted into the card guide, the handle is automatically positioned so that the user can press the bottom of the handle to insert the circuit board. The handle and card guide interface is designed to provide a large positive force to extract the circuit board from the card guide until the circuit board is unseated from the associated high insertion force connectors. The clip is constructed of stainless steel and formed into a generally flat "U" shape. This "U" shaped clip fits inside, and is captured by, the handle such that the clip and handle form a single assembly. Circuit board retention tabs, constructed as part of the clip, engage reliefs in the surface of the circuit board thereby preventing the clip and handle from coming off of the circuit board. Also, the circuit board retention tabs serve to transfer the extraction force produced by the handle/card guide interface to the circuit board to force the circuit board out of the card guide. Spring mounted bumps on the retaining clip interact with dimples on the handle to provide a plurality of stable handle positions. Additionally, the present invention is advantageously designed to eliminate the need for fixtures or separate hardware to install the handle onto the circuit board thereby saving assembly line time and money.
REFERENCES:
patent: 4632588 (1986-12-01), Fitzpatrick
patent: 5383793 (1995-01-01), Hsu et al.
patent: 5398164 (1995-03-01), Goodman et al.
Boyle Howard R.
Hewlett--Packard Company
Picard Leo P.
Whang Y.
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