Circuit board enclosure latch system
US4750091A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 29, 1986 |
| Grant date | Jun 7, 1988 |
| Priority date | — |
| Expiry date | Dec 29, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2229/042
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The fastening of a circuit board in a housing that has a front faceplate panel with actuating means thereon for activating switches that are mounted on the circuit board is effected by a self-compensating latch apparatus. The apparatus employs a plurality of mounting ledges molded to the side walls of the housing and spaced a chosen distance from the font panel upon which the circuit board rests. A plurality of resilient fingers with locking devices attached to each finger are integrally molded within the walls of the housing near the mounting ledges. The fingers flex away from the edges of the circuit board as the board is introduced into the housing via a rear opening. Then the fingers flex inwardly causing arch-shaped members of the locking devices to move over the rear edge of the circuit board to a location whereat the front of the circuit board is locked against the ledges. By use of this invention, circuit boards of varying thicknesses can be locked into such a housing. Another embodiment is disclosed that includes locking devices having tapered faced members for making point-contact with the edges of the circuit board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.