Mechanism for inserting and withdrawing printed board unit of electronics circuit device
US5140501A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1989 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Dec 27, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/1409
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A mechanism for insertion and withdrawal of a printed board unit (20) to and from a shelf (10), by which the printed board is inserted in the shelf with less force and locked therein after the completion of the operation, an the complete insertion can be confirmed by a click noise and a mark. The mechanism includes a lock arm (26), which is fixed to the printed board unit (20) at the base portion thereof and has a flexible tip, a lever (25) pivoted to the printed board unit (20) and provided with a cam surface (30) for driving the lock arm (26) for insertion and withdrawal of the printed board unit (20), and an aperture (17) formed on the shelf (10) and engageable with the lock arm (26) when the same is in a fixed position. The lever (25) occupies predetermined angular positions, both when the printed board unit (20) is completely engaged to a connector and when the printed board unit is withdrawn therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.