US 2004/0174635 A1 · Magnetic disk cartridge

Abstract

A magnetic disk cartridge which comprises a housing provided with a shutter lock member, and which facilitates attachment of the shutter lock member and prevents dust or other contaminants from entering via the portion where the shutter lock member is attached. The shutter lock member is constituted by a shutter lock body having a slide contact surface on the upper surface thereof; a sliding-contact-surface-side protrusion extending from the upper surface; and an opposite-surface-side protrusion extending from the lower surface. The shutter lock member is rotatably disposed between upper and lower shell halves while the sliding contact surface is in sliding contact with the inner surface of the upper shell half with the sliding-contact-surface-side protrusion being rotatably received within a protrusion receiving hole formed in the upper shell half, and while the end of the opposite-surface-side protrusion is in sliding contact with the inner surface of the lower shell half.

Drawings

Claims3

Dependent claims

A magnetic disk cartridge:

comprising a flat housing constituted by upper and lower shell halves;
and a magnetic disk as a recording medium which is rotatably accommodated within the housing, the housing including an opening to allow a recording/reproducing head of a drive unit to access a surface of the magnetic disk, a rotary shutter used to open and close the opening, and a shutter lock member for locking the rotary shutter at its closed position,
wherein the shutter lock member is constituted by a shutter lock body having a sliding contact surface provided on the upper or lower surface of the shutter lock member in sliding contact with the inner surface of either one of the upper and lower shell halves, a sliding-contact-surface-side protrusion formed on the one of the upper or lower surface of the shutter lock body, and an opposite-surface-side protrusion formed on the other of the upper or lower surface of the shutter lock body;
wherein one of the upper and lower shell halves includes a protrusion receiving hole having a diameter substantially same as that of the sliding-contact-surface-side protrusion;
and
wherein the shutter lock member is rotatably disposed between the upper and lower shell halves while the sliding contact surface of the shutter lock member is in sliding contact with the inner surface of the one of the shell halves with the sliding-contact-surface-side protrusion being received within the protrusion receiving hole, and while the end of the opposite-surface-side protrusion is in sliding contact with the inner surface of the other shell half.

3 more elements

Dependencies are inferred from the claim text.

Description3,181 words

Summary1,225 words

#1. Field of the Invention

#The present invention relates to compact magnetic disk cartridges replaceably held within a card type disk drive that can be inserted into a card slot of an electronic apparatus such as a digital still camera, a digital video camera, a laptop computer or the like.

#2. Description of the Related Art

Brief description of the drawings6 figures

#FIG. 1A, FIG. 1B, and FIG. 1C respectively illustrate a plan view, a right side view, and a bottom view of a magnetic disk cartridge according to the present invention;

#FIG. 2 is a plan view showing a body of a PC card type drive unit suitable for use with the magnetic disk cartridge of the invention;

#FIG. 3 is a perspective view of a shutter lock member of the magnetic disk cartridge shown in FIGS. 1A to 1C;

Detailed description1,816 words

#Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

#FIGS. 1A to 1C illustrate a very small magnetic disk cartridge called “clik!™” which is removably received within a PC card type drive unit in a push-and-pull manner.

#FIG. 1A is a plan view, FIG. 1B is a right side view, and

Facts

Application

10/792,212Filed 4 Mar 2004

Priority

JP 059921/20036 Mar 2003

Published

9 Sep 2004

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

G06K 13/0825
Using an arrangement for ejection of an inserted card: the ejection arrangement being of the push-push kind
G11B 23/0308
Details: shutters
G06K
Graphical data reading
G11B
Information storage based on relative movement between record carrier and transducer

Timeline

6 Mar 2003Priority claimedJP 059921/2003
4 Mar 2004Application filedUS 10/792,212
4 Mar 2004Assigned to Fuji Photo Film Co., Ltd.assignment of assignor's interest
9 Sep 2004Published
15 Feb 2007Assigned to Fujifilm Corporationassignment of assignor's interest
20 Oct 2008Assigned to National Institutes of Health (Nih), U.S. Dept. of Health and Human Services (Dhhs), U.S. Governmentconfirmatory license

Magnetic disk cartridge

Life of this patent

Magnetic disk cartridge

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims3

Description3,181 words

Drawings

Classification4 codes

Life of this patent

Description3,181 words