Printed wiring board enclosure

• US 4,528,616 A
• Filed: 03/28/1983
• Issued: 07/09/1985
• Est. Priority Date: 03/28/1983
• Status: Expired due to Fees

• Current Assignee: AG Communication Systems Corp. (Nokia Corporation)
• Original Assignee: GTE Automatic Electric Incorporated (Verizon Communications Inc.)
• Inventors: Koppensteiner, James V.
• Primary Examiner(s): Kucia, R. R.
• Application Number:
  US06/479,309
• Time in Patent Office: 834 Days
• Field of Search: 361/415, 361/399, 361/412, 174/52 R, 206/328, 335/202
• US Class Current: 361/752
• CPC Class Codes: H05K 7/1417 having securing means for mounting boards, plates or wiring boards H05K7/1461 takes precedence

Abstract

An enclosure for a printed wiring board. The enclosure includes a U-shaped channel member having a ledge in each of its sides. Each ledge has a floor and a wall, and each wall includes at least one projection. A printed wiring board is retained against the ledge floors by means of the projections acting against the printed wiring board. Longitudinal motion of the printed wiring board, in its retained position, is prevented by a tubular projection attached to the U-shaped member extending through an aperture in the printed wiring board. A cover is provided and retained in engagement with the U-shaped member by a plurality of cover projections engaging depressions in a cover receiving ledge formed in the U-shaped member. The enclosure is adapted to be positioned relative to a relay structure by a longitudinal rib attached to the base of the U-shaped member. A fastener extends through the cover and the tubular projection, and engages the relay structure to affix the enclosure to the relay structure.

Claims

1. An enclosure adapted to contain an associated printed wiring board;

said enclosure adapted for attachment to an associated relay;

said enclosure comprising;

a U-shaped member including at least a base and first and second opposite sides, each of said sides including at least an inner wall facing the inner wall of the opposite side;

a cover adapted to engage said U-shaped member;

a board receiving ledge formed in each of said inner walls, each of said board receiving ledges including a board receiving ledge wall parallel to said respective side and a board receiving ledge floor perpendicular to said respective side, said floors lying in a common plane, and said ledges adapted to receive said printed wiring board;

at least one projection formed in each of said board receiving ledge walls, said projections deflected to permit said printed wiring board to pass and said projections restored following passage of said printed wiring board to retain said printed wiring board;

an aperture formed in said printed wiring board;

a first projection attached to said base;

extending therefrom in a direction toward said cover and through said printed wiring board aperture;

a second projection attached to said cover, extending therefrom in a direction toward said base and abutting said first projection;

a fastener extending through said cover, said printed wiring board aperture, and said U-shaped member and engaging said relay to attach said enclosure to said relay while preventing the application of tightening stresses to said printed wiring board.

2. An enclosure as claimed in claim 1, wherein:

said first projection positions said fastener to prevent contact between said fastener and said printed wiring card.

3. An enclosure as claimed in claim 1, wherein:

said first projection projects through said aperture in said printed wiring board to prevent longitudinal motion of said printed wiring board within said U-shaped member.