摘要:
A tape cartridge having a high performance tape path therein. The tape cartridge includes one or more gas bearing tape guides and/or one or more recesses in an edge of a gas/tape bearing surface. The gas bearing assemblies include a plenum having a metal foil gas bearing surface bonded thereto using a die-cut adhesive sheet. The compliant members are each inserted into a recess adjacent the edge of the bearing surface to permit edge guiding while providing lateral support for the tape immediately before and after the recesses in the direction of tape movement.
摘要:
A pass-thru cassette magazine performs several functions beyond vertically holding a plurality of data cassettes in a position randomly accessible to a data storage subsystem picker assembly, including locking the data cassettes within corresponding storage cells in either an import or export position when the magazine is not interfaced to the storage subsystem (that is during handling by an operator). The "locked" position indicates that a data cassette cannot be removed from the magazine without a force of approximately one kilogram or greater. When a magazine is interfaced to the storage subsystem, the magazine is interlocked thereto such that the magazine cannot be removed without releasing the interlock. While the magazine is interlocked, the lock on the data cassettes is disabled so that the data cassettes can be freely picked by the picker assembly or removed or inserted by an operator. If a data cassette is in a position other than import or export, a potential problem exists and the interlock mechanism release is disabled thus requiring all data cassettes to be properly positioned before the magazine could be removed from the storage subsystem.
摘要:
A tape reel brake which is mounted in a well in the top of a tape reel hub. The well is inside the tape bearing surface of the hub. The brake is mounted to be compliantly biased away from the base of the well. The hub is seated against a first inside surface of a tape cartridge housing. The hub and brake are seated in the tape cartridge such that teeth on the periphery of the brake are biased against the opposite inside surface of the cartridge housing about the periphery of an opening therein. The biasing of the brake against the opposite inside surface both prevents the rotation of the reel and shields out dust when the tape cartridge is removed from a tape drive. To rotate the reel, a tape drive clutch enters the opening in the opposite inside surface and depresses the brake into the well to mate with a smaller diameter portion of the hub or a recessed portion of the brake. The hub is always maintained on the inside surface of the housing, thereby eliminating lateral motion which could disrupt the tape path.
摘要:
A tape path having an implicit squeeze bearing. In such a tape path, one end of the tape is wound upon a first reel, the tape extends around one or more guides, briefly comes into close proximity with itself at the outer wrap of the tape wound upon the first reel, and is wound upon a second reel. By coming within close proximity with itself, the tape forms an implicit squeeze bearing which damps tape tension variation, inhibits the transmission of vibrations from one reel to the other, and eliminates the entrapment of entrained air without any additional rollers or other components. The tape path is suitable for use in a peripheral storage device, such as a magnetic tape drive, and is compatible with a variety of tape cartridge configurations.
摘要:
The present invention provides machine and human readable information for a data cartridge or other item to be stored. In one embodiment, a label, on which human readable information is printed or similarly marked, is applied to cover an indicator area of the cartridge. The indicator area of the cartridge has recesses formed therein; corresponding positions on the indicator area of the label overlay the recesses and be either open or closed. An open position allows a mechanical, spring-loaded finger on a data drive to engage the exposed recess and activate or deactivate a connected switch. Information, matching the printed human readable information, can thus be encoded in the label and machine read by the data drive.
摘要:
A compliant tape guide in a tape cartridge loads edge of a tape with an optimum pressure and a minimum of vibration by a series of compliant spring arms which transmit a guiding load to the edge through a flexible metal foil. The metal foil contacts the tape over a specified arc length in which the tape is supported by a curved guide bearing.
摘要:
The present invention provides machine and human readable information for a data cartridge or other item to be stored. In one embodiment, a label, on which human readable information is printed or similarly marked, is applied to cover an indicator area of the cartridge. The indicator area of the cartridge has recesses formed therein; corresponding positions on the indicator area of the label overlay the recesses and be either open or closed. An open position allows a mechanical, spring-loaded finger on a data drive to engage the exposed recess and activate or deactivate a connected switch. Information, matching the printed human readable information, can thus be encoded in the label and machine read by the data drive.