Magnetic tape cartridge
AssigneeFuji Photo Film Co., Ltd.
InventorsHidetoshi Yamamoto, Seiji Tsuyuki
Life of this patent
Estimating the term…
Abstract
The present invention aims to provide a magnetic tape cartridge capable of improving operational precision and efficiency in the process of mounting a release part for unlocking a reel. A magnetic tape cartridge having a release button (part) for unlocking a reel, the release button being mounted in a hub with a cup shape formed on the reel, wherein a bottom portion of the hub has a fitting opening into which the release part fits, and a detection opening with a predetermined positional relationship with the fitting opening; and a reflection (metal) plate attached on a bottom surface of the bottom portion of the hub is viewed from an aperture of the detection opening defined in a top surface of the bottom portion of the hub.
Claims20
A magnetic tape cartridge having a release part for unlocking a reel having a magnetic tape wound therearound and housed in a locked state in a cartridge case, the release part being built in a hub having a cup shape formed on the reel, wherein
- a bottom portion of the hub has a fitting opening defined therein into which the release part fits in a predetermined direction, and a detection opening penetrating the bottom portion with a predetermined positional relationship with the fitting opening;
- and
- a reflection plate attached on a bottom surface of the bottom portion of the hub is viewed from an aperture of the detection opening defined in a top surface of the bottom portion of the hub.
Dependencies are inferred from the claim text.