Title:
CLAMPING DEVICE OF DISK
Document Type and Number:
Japanese Patent JPS5870469
Kind Code:
A
Abstract:
PURPOSE:To prevent an off-track error caused by a core shift in case of clamping, by making core axes of disks conform with each other against spindle and positioning them in the axial direction to exactly clamp the disk to a spindle. CONSTITUTION:A clamping member 7 can be inserted so as to be attachable and detachable between the inside wall of a center hole 3' of a hub 2' and a tip shaft part 4a in a state that the hub 2' of a disk 1 has been placed on a disk receiver 6. When pressing force is put in the direction of the disk receiver 6, the clamping member receives component of force by the tapered surface of the tip shaft part 4a, is radially expanded in the vertical direction against the axial core of a spindle 4, and its outside is made to press-contact with the inside wall surface part of the center hole 3' of the hub 2'. Therefore, the clamping member 7 is constituted of an elastic member having a tapered hole 8 which can be fitted into the tip shaft part 4a.
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Inventors:
SAKAMOTO KENICHI
NAKAGAWA KOUICHIROU
UEHIRA KIYOTAKA
SUYAMA SATOSHI
NAKAGAWA KOUICHIROU
UEHIRA KIYOTAKA
SUYAMA SATOSHI
Application Number:
JP16841381A
Publication Date:
April 26, 1983
Filing Date:
October 20, 1981
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G11B17/028; (IPC1-7): G11B25/04
Attorney, Agent or Firm:
Toshio Nakao
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