MAGNETIC HEAD APPARATUS FOR MAGNETIC DISCS

摘要

Magnetic head arms 20 cooperating with a pack of rigid magnetic discs are cantilevered out of a channel in a carriage for positioning the magnetic heads. The arms 20 rest on rung surfaces 45b and 46b of two ladder elements 45, 46 mounted in the channel by means of grooves 47 in opposed channel sidewalls. The arms are clamped in place by slugs 32 drawn against first bevelled edges 23 by bolts 30. The bevelled edges 23 and bevelled surfaces 33 on the slugs urge the arms also down onto the rung surfaces and a like effect is achieved at the opposite edge 25 where a bevelled surface 24 cooperates with an inclined part of a groove 41. In an alternative the grooves 41 are not employed but slugs are mounted in both sidewalls and drawn together by the bolts 30. Instead of the ladders 45, 46, supporting pins can project from both sidewalls of the channel.