FLEXIBLE MAGNETIC DISC APPARATUS

FLEXIBLE MAGNETIC DISC APPARATUS

  • CN 86,108,367 A
  • Filed: 12/06/1986
  • Published: 08/05/1987
  • Est. Priority Date: 12/06/1985
  • Status: Abandoned Application
First Claim
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1. , a system that forms by disk drive mechanism and recording disc, it is characterized in that, there is a main shaft in this disk drive mechanism, this main shaft has the cylindrical peripheral surface and the abutment surface that end at its upper bound, abutment surface is located in the described disk drive mechanism on the plane perpendicular to described cylindrical peripheral centre of surface pivot center, recording disc comprises a soft magnetism diskware, a core spare, a spacing device of main shaft and a centering device, core spare is fixed on the center of described disk spare, there is a hole at core spare center, described main shaft promptly is enclosed within this hole, the work that the spacing device of main shaft plays the reference field that qualification can engage with described abutment surface stretches in the described hole in order to limit described main shaft, the centering device is relevant with described core spare, it comprises that some putting in the described hole in order to the main shaft locating convex block that engages with described main shaft and one puts in the described hole in order to described main shaft is withstood the elastic component of described locating convex block in the hole in the hole, described locating convex block and described reference field have such relative position, make that when described recording disc installs in the described disk drive mechanism cylindrical peripheral surface of described main shaft is in above described each locating piece top all the time to guarantee that locating convex block makes described soft magnetism diskware with respect to the accurate centering of described pivot center under described reference field and situation that described seating plane engages.

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