Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1994-08-17
1996-06-11
Bryant, David P.
Metal working
Method of mechanical manufacture
Assembling or joining
29513, 174 66, 220241, B23P 1100
Patent
active
055243304
ABSTRACT:
An electronics component face plate and captured screw assembly and method of forming the assembly. A face plate of sheet metal, such as one provided with indicia (providing source information or information as to indicators, connection elements or controls) is provided with a hole of a diameter sized to correspond to a portion of a screw, between a screw head and screw threading wherein the threading has a diameter greater than the hole. A tab structure is cut into the metal in a circular pattern in a region surrounding the hole. Tabs are formed by removing portions of the metal to leave a portion of the metal surrounded on each side by an area wherein the metal has been removed. The tabs are then pressed upwardly. In doing this, the original hole with the diameter as noted above, expands somewhat such that the threaded area of the screw can be inserted through the hole. Subsequently, an anvil with a hole drilled therein is positioned below the face plate wherein the screw threaded portion is inserted through the hole in the anvil with the sheet metal face plate placed over the anvil. Pressure is applied at the head of the screw whereby the raised up portion in the tab region is flattened to its original shape whereby the screw is captured with the head of the screw being maintained on one side of the face plate and the threaded portion of the screw maintained on the other side of the face plate.
REFERENCES:
patent: 1854730 (1932-04-01), Bell
patent: 3060562 (1962-10-01), Fransson
patent: 3892031 (1975-07-01), Bisbing
patent: 4355198 (1982-10-01), Gartland, Jr.
patent: 5256019 (1993-10-01), Phillips, II
3Com Corporation
Bryant David P.
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