US 6,883,741 B2Granted

Magnetic tape cartridge

AssigneeFuji Photo Film Co., Ltd.

InventorsHideaki Shiga, Yusuke Ishihara, Kiyoo Morita, Daisuke Takahashi, Seiji Tsuyuki

Life of this patent

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Abstract

A magnetic tape cartridge includes a cartridge casing formed by upper and lower casing halves connected together, and a single reel around which a magnetic tape with a leader pin fixed to the leading end of the magnetic tape is wound and which is contained in the cartridge casing for rotation. The leader pin is removably held in a tape draw-out opening with its axial direction directed in the vertical direction under urging force of a spring member acting on its upper and lower end portions sideways with the upper and lower end portions received in recesses respectively formed in the upper and lower casing halves. An inclined surface directed obliquely downward is formed at least a part of the side wall of the recess formed in the upper casing half opposed to the direction in which the spring member urges the leader pin.

Claims1

Dependent claims

A magnetic tape cartridge comprising a cartridge casing formed by upper and lower casing halves connected together, and a single reel around which a magnetic tape with a leader pin fixed to the leading end thereof is wound and which is contained in the cartridge casing for rotation, the leader pin being removably held in a tape draw-out opening with its axial direction directed in the vertical direction under urging force of a spring member acting on upper and lower end portions of the leader pin sideways with the upper and lower end portions received in recesses respectively formed in the upper and lower casing halves, and the tape draw-out opening being opened and closed by a slide door wherein the improvement comprises that

the slide door is provided on the back side thereof with a rib having an inclined surface which is brought into abutment against the upper surface of a head portion of the leader pin and presses downward the leader pin in response to movement of the slide door to the closing position.

Dependencies are inferred from the claim text.

Facts

Application: 10/667,366Filed 23 Sep 2003 · division
Priority: JP 10-22773712 Aug 1998
Published: US 2004/0056134 A125 Mar 2004
Granted: 26 Apr 2005
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

G11B 23/26
With provision for splicing to provide permanent or temporary connections: of leaders for loading or threading, e.g. to form a temporary connection
G11B 23/027
Containers; Storing means both adapted to cooperate with the recording or reproducing means: containers for single reels or spools
G11B 23/107
For housing webs or filaments having two distinct ends: using one reel or core, one end of the record carrier coming out of the magazine or cassette
G11B
Information storage based on relative movement between record carrier and transducer

Family

PCTJP99/03250Parent of this division · filed 18 Jun 1999
Application10/197,829Parent of this division · filed 19 Jul 2002
US 2004/0056134 A1Pre-grant publication · published 25 Mar 2004
US 6,659,380 B2Parent of this division
Application09/762,563Parent of this division
US 6,648,259 B1Parent of this division
US 2002/0185565 A1Published application
US 6,883,741 B2This patent

From the US filing history. Foreign family members aren’t listed.