Abstract:
A zero-insertion force connector for a multi-pin module is provided having a plurality of short, narrow resilient conductive contact members, each of which has a lengthwise opening therethrough of a diameter slightly greater than a module pin so as to each receive a module pin with substantially zero friction. One end of the contact is located in a plate having a plurality of openings therein each centered with respect to one of the pin positions and having a diameter somewhat larger than the contact so the contact can move therein to adjust for pin misalignment. An actuator plate is provided located adjacent to the module locating plate and connected with each of said contact members so as to provide in its actuated condition bending of said contact members so as to wipe and substantially circumferentially contact the module pin inserted in the end of the contact member within the module locating plate. Fan-out connection means is provided for making an electrical connection to the other end of each of the contacts.
Abstract:
In a random access storage device a head transported relative to a rotating assembly of flexible disks and a pair of co-rotating end plates operates in clearance spaces formed by sliding the disks apart at a selected interface. One of the end plates is attached to a low friction spline which is quickly shiftable between predetermined axial limit positions. In the most confining position of this plate a single selected interface space between the disks is partially opened by deflection of the disks. The partial opening is sufficient to establish a pressure difference relative to the other interfaces but not enough for unobstructed entrance of the head. Shortly after formation of the partial opening the shiftable plate is actuated away from the disks in a quick movement. Due to the suction effects accompanying this movement, and the just-mentioned pressure difference, the disks between the partial opening and the shifting plate are cohesively moved away from the selected interface as a sliding unit; thereby expanding that interface sufficiently to accommodate the head.