Patent ID: 7123885

Claim:
A housing, comprising on right and left sides of the housing one detent spring each projecting from the housing, which springs are retractable into the housing to enable insertion of the housing into a mounting frame or mounting slot and which snaps in place behind a detent edge of the mounting frame or mounting slot, where, disposed on the right and left sides of the housing, is one rotatable catch each with an oblique guide against which a stop of the detent spring under tension presses; that the detent springs are retracted into the housing by rotating the catch in one direction, while they are released by rotating the catch in the other direction; that an eccentrically disposed pin projects from each catch, for which pin a guide channel is located in the mounting frame or mounting slot so that the housing may be inserted into the mounting frame or mounting slot only in the locked position with the detent springs projecting from the housing, the detent springs being pressed into the housing and snapping in place behind the detent edges after successful insertion; that to remove the housing from the mounting frame or mounting slot, the detent springs are moved into the unlocked position by rotating the catch, in which position they are retracted within the housing; that when the housing is pulled out from the mounting frame or mounting slot, the pins of the catches abut the mounting frame or mounting slot so that the catches are rotated to the point where the pins slide into the guide channels provided for them, the detent springs being simultaneously released and thus snapping into the locked position from the housing immediately upon removal from the mounting frame or mounting slot.