Patent ID: 6098938
Filing Date: 2000-08-08
Classification: G06F,H01R,H05K

Abstract:
A retention mechanism for a cassette CPU module, comprising:a retention groove having a flexible action portion and a snap fastening portion disposed at an end wall of said retention groove, wherein said flexible action portion further comprises a clamp tongue and connection portions, in an inner wall of said retention groove, flute tracks, vertical guide portions, and vertical fixing portions are disposed, and at a bottom of said retention groove positioning pins are provided on opposing inner sides thereof;a base having two positioning holes therein and a fixing recess in a top edge of a vertical wall, and at least one through hole with a flute and a fixing portion formed therein;a movable piece that is pushed to move up or down within a limited range, said movable piece further comprises retaining flanges, internal reversal snap fastening portions coincidental with said inner wall of said retention groove to form a dual-track snap fastening groove, a guide slope portion at a bottom end of said movable piece, and a pushing portion that extends upward from said guide slope portion;a fixing plug which comprises two opposing positioning protrusions, a flange, and a centered reception hole;an insert pin with two protrusions; whereinafter said positioning pins of said retention groove are installed in said positioning holes in said base, said vertical guide portions, said vertical fixing portions, and said fixing recess enable said retention mechanism to be folded in a first position or to be fixed in a second vertical position; said movable piece fastened to said retention groove by retaining flanges being pushed up or down within a limited range by a user to enable movement from said first position to said second position.