Apparatus for detachably mounting a record sheet in place in a sheet type recorder/player

摘要

A device for the accurate placement of a record sheet having a plurality of positioning holes, and recording area on a recorder-player having a recording-playing head and placement pins engageable with the placement holes of the record sheet, comprises a bottom placement plate having an indented area substantially corresponding to the shape of the record sheet, an opening in the indented area corresponding to the shape of the recording surface of the record sheet, and a plurality of apertures corresponding to the placement holes of the record sheet and a covering retainer plate having a plurality of apertures corresponding to the holes of the record sheet and the apertures of the placement plate. The placement plate and retainer plate form a pocket into which a record sheet is insertable for coarse alignment with the placement pins of the recorder-player. The pocket assembly is displaceable toward the recorder-player to bring the record sheet into engagement with the placement pins which are beveled to further align the recording surface with the recording-playing head of the recorder-player.