# US 7,431,233 B2 · Tape cartridge

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- Number: US 7,431,233 B2
- Document ID: US7431233B2
- Status: Granted
- Kind: B2
- Application number: 11/401,251
- Filed: 2006-04-11
- Published: 2006-10-12
- Granted: 2008-10-07
- Earliest claimed: 2005-04-12
- Assignees: Hitachi Maxell, Ltd.
- Inventors: Toshiro Nishiwaki
- Web page: https://patentgrep.com/patent/US7431233B2

## CPC

- G11B 23/08735: {Covers}
- G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R)

## Abstract

There is provided a tape cartridge capable of reliably preventing tight adhesion of a magnetic tape to the back side of a front plate portion of a front cover. A regulation body for preventing adhesion of the tape to the back side of the front plate portion of the front cover is integrally provided in a protruding manner in the region including a tape loading pocket on the front face of a main case. The regulation body includes a plurality of kinds of ribs different in protruding size from the back side. The top end of each rib is convex-curved to have a circular arc cross section. A plurality of kinds of the ribs are disposed in horizontal direction at intervals.

## Claims

### Claim 1

A tape cartridge, comprising:
a tape loading pocket formed in a center of a front face of a case body; and a tape protecting front cover provided on the case body for covering an outer front face of the pocket,
wherein a regulation body for preventing adhesion of the tape is integrally provided in a protruding manner in a region facing the pocket on a back side of a front plate portion of the front cover facing a magnetic layer face of a tape,
wherein the regulation body includes a plurality of ribs extending in vertical direction and disposed in horizontal direction at intervals,
wherein a top end face of each rib is convex-curved to have a circular arc cross section,
wherein the regulation body includes a plurality of kinds of ribs different in protruding size from the back side of the front plate portion of the front cover, and
wherein a plurality of kinds of the ribs are disposed in horizontal direction at intervals.

### Claim 2 (depends on 1)

The tape cartridge according to claim 1,
wherein the regulation body includes large and small ribs different in protruding size from the back side of the front plate portion of the front cover, and
wherein the ribs are disposed in horizontal direction at a constant interval.