Patent ID: 6721172
Filing Date: 2004-04-13
Classification: H05K

Abstract:
A mechanism for inserting and removing an electronic circuit unit against a shelf of an electrical device where the electronic circuit unit is installed,wherein the shelf includes a groove forming part, the electrical circuit unit includes a rotatable lever having a head end where a fixing part is provided; a rotatable stopper connected to the lever and having a head end where an engaging part is provided; and a housing member housing the lever and the stopper where an engaging surface engaging with the engaging part of the stopper is provided inside thereof, the electrical circuit unit is locked with the shelf by rotating the lever so as to engage the groove forming part of the shelf with the fixing part of the lever, and the engaging part of the stopper engages the engaging surface of the housing member such that the engagement between the engaging surface of the housing member and the engaging part of the stopper is not released even if a force to release the fixing part of the lever from the groove forming part of the shelf is applied to the lever.