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US 7,000,862 B2Granted
Magnetic tape cartridge
AssigneeFuji Photo Film Co., Ltd.
InventorDaisuke Takahashi
Life of this patent
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Abstract
A magnetic tape cartridge has: a single reel with a magnetic tape wound thereon; a cartridge case rotatably storing the single reel therein; a tape pull-out leader pin fixed to the leading end portion of the magnetic tape and releasably held within the cartridge case; a tension absorbing unit for absorbing the tension of the magnetic tape disposed inside a holding portion for holding the leader pin.
Claims2
A magnetic tape cartridge comprising:
- a single reel with a magnetic tape wound thereon;
- a cartridge case rotatably storing the single reel therein;
- a tape pull-out leader pin fixed to the leading end portion of the magnetic tape and releasably held within the cartridge case;
- and
- a tension absorbing unit, for absorbing the tension of the magnetic tape, while winding or pulling out the magnetic tape, disposed inside a holding portion for holding the leader pin,
- wherein the tension absorbing unit includes:
- a U-shaped lever;
- a coil spring wound around one arm portion of the U-shaped lever, one end of the coil spring fixed to the cartridge case, the other end of the coil spring fixed to the U-shaped lever;
- and
- a roller mounted on a second arm portion of the U-shaped lever;
- and
- wherein the U-shaped lever rotates around the one arm portion with the coil spring and the roller contacts and energizes the magnetic tape.
9 more elements
Dependencies are inferred from the claim text.