MAGNETIC TAPE CASSETTE AND DRIVING DEVICE THEREFOR

Title:

MAGNETIC TAPE CASSETTE AND DRIVING DEVICE THEREFOR

Document Type and Number:

Japanese Patent JP2000003577

Kind Code:

A

Abstract:

To provide a magnetic tape cassette and a driving device therefor which can reduce defects in linearity.

This cassette and driving device therefor is provided with a hub 1 of a hollow cylindrical type on which a magnetic tape is wound and a reel for a magnetic tape of which upper and lower flanges are provided at the upper and lower ends of the hub 1, and engaging with the hub 1, the reel for magnetic tape is driven to rotate by a driving shaft 2. In this case, the difference between a radius R of the hub 1 and a radius(r) of the driving shaft 2 is 50 μm or more to less than 200 μm, out of roundness of the hub 1, that is, the difference between radiuses (R-R') and out of roundness of the driving shaft 2, that is, the difference between radiuses (r-r') are both set to 20 μm or less.

Inventors:

MURAO NAOTO
NAKANE TAKANOBU
SUGAWARA SHINICHI
YAMAGISHI MITSUGI
ASADA MITSUYOSHI
ONO MIKIO

Application Number:

JP16722698A

Publication Date:

January 07, 2000

Filing Date:

June 15, 1998

Export Citation:

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Assignee:

FUJI PHOTO FILM CO LTD

International Classes:

G11B23/087; G11B15/32; (IPC1-7): G11B23/087; G11B15/32

Attorney, Agent or Firm:

Tadashi Hagino (4 outside)

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