Patent ID: 6963492
Filing Date: 2005-11-08
Classification: H01R

Abstract:
1. A lockable retractable locating frame of a BGA on-top test socket, atop a base of the test socket, spacing from the base with a plurality of stroke spaces for defining an operational stroke between the base and the locating frame, comprising at least a push-and-lock mechanism neighboring one of the stroke spaces, the push-and-lock mechanism further comprising: an accommodation room, constructed inside the locating frame by having an opening connecting with the stroke space, spacing a lateral surface of the locating frame with a division wall; a sliding slot, constructed at the division wall by extending longitudinally to the stroke space, connecting the accommodation room to the lateral surface; and a slider, movable on the sliding slot for protruding into the stroke space, further comprising; wherein the push-and-lock mechanism includes a nest state and a protrusion state; while in the nest state, the tongue portion being completely accommodated inside the accommodation room; while in the protrusion state achieved by acting at the driving portion to move the slider a predetermined distance toward the stroke space along the sliding slot, the tongue portion having a front end thereof to locate inside the stroke space and forming a predetermined contact relationship with the base.