Provided is a recording tape cartridge including: a case that accommodates a reel on which a recording tape is wound and includes a reference surface that serves as a reference in an axial direction of the reel in a case where the case is loaded into a drive device; noncontact communication mediums on which individual information is recorded, the noncontact communication mediums being accommodated in the case in a state where at least two noncontact communication mediums overlap each other and having a plate shape; and a supporting portion that is formed in the case and supports the noncontact communication mediums such that the noncontact communication mediums are disposed while being inclined with respect to the reference surface at an angle of approximately 45 degrees.

According to one embodiment, a disk drive includes a base including a bottom wall and a side wall, a cover including a top plate screwed on the side wall, a side plate provided along a peripheral edge of the top plate and opposing to an outer surface of the side wall, and an opening formed in the side plate, a sealing member held between the top plate of the cover and an upper end face of the side wall, and a recording medium rotatably provided at the bottom wall. The side wall of the base includes a first portion located adjacent to the recording medium, and a projecting portion projecting from the first portion outward of the side wall and located in the opening of the side plate.

The present disclosure generally relates to a lock mechanism for a tape embedded drive. The tape embedded drive comprises an enclosure enclosing a first tape reel, a second tape reel, and a lock mechanism. The first tape reel comprises a first gear, the second tape reel comprises a second gear, and the lock mechanism is disposed between the first and second gears. The lock mechanism comprises a latch lock, one or more latch tips disposed at a first end of the latch lock, a magnet disposed at a second end of the latch lock, and an electromagnet disposed adjacent to the magnet. When the electromagnet is activated, the latch lock moves to an unlocked position. When the electromagnet is de-activated, the latch lock moves to a locked position where the one or more latch tips are in contact with the first and second gears.

A tape cartridge includes a reel; a cartridge case; a reel lock member; and a reel lock release member. The reel includes a reel hub including a cylindrical bottom portion. The reel lock member includes a projecting portion projecting to engage with the reel hub. The reel lock release member includes a main body and leg portions, the main body disposed between the reel lock member and cylindrical bottom portion, the leg portions extending from the main body and being inserted into through holes, the reel lock release member releasing engagement of the reel lock member and reel hub. The main body includes central portion and extension portions, the central portion in contact with the projecting portion, the extension portions extending radially to end portions connected to the leg portions, thicknesses of the extension portions along a uniaxial direction gradually decreasing from the central portion toward the end portions.

A tape cartridge according to an embodiment of the present technology includes: a reel; a cartridge case; a reel lock member; and a reel lock release member. The reel includes a reel hub including a cylindrical bottom portion. The reel lock member includes a projecting portion projecting toward the cylindrical bottom portion in a uniaxial direction and is urged in the uniaxial direction to engage with the reel hub. The reel lock release member includes a main body and a plurality of leg portions, the main body being disposed between the reel lock member and the cylindrical bottom portion, the plurality of leg portions extending from the main body in the uniaxial direction and being inserted into a plurality of through holes, the reel lock release member releasing engagement of the reel lock member and the reel hub. The main body includes a central portion and a plurality of extension portions, the central portion being in contact with the projecting portion, the plurality of extension portions extending radially along a direction perpendicular to the uniaxial direction from the central portion to end portions connected to the plurality of leg portions, thicknesses of the plurality of extension portions along the uniaxial direction gradually decreasing from the central portion toward the end portions.

Provided is a recording tape cartridge including: a case that accommodates a reel on which a recording tape is wound and includes a reference surface that serves as a reference in an axial direction of the reel in a case where the case is loaded into a drive device; noncontact communication mediums on which individual information is recorded, the noncontact communication mediums being accommodated in the case in a state where at least two noncontact communication mediums overlap each other and having a plate shape; and a supporting portion that is formed in the case and supports the noncontact communication mediums such that the noncontact communication mediums are disposed while being inclined with respect to the reference surface at an angle of approximately 45 degrees.

A metallic plate that is a structure of a release member, the release member being configured to be integrally rotatable with a reel accommodated in a case, and the release member moving a locking member from a locking position, at which the locking member locks rotation of the reel relative to the case, to an allowing position, at which the locking member allows rotation of the reel. The metallic plate comprises a touching surface that is to be touched by a distal end of a sliding protrusion portion that protrudes from the locking member; and a structure such that, if a plurality of the metallic plate are stacked in a plate thickness direction in a state in which the metallic plates are not attached to release members, the touching surface of each metallic plate is not in contact with any other of the metallic plates.

A release member molding method for mounting a metallic plate in a main body of a release member by insert-molding. The release member is to be provided to be integrally rotatable with a reel accommodated in a case, and to move a locking member from a locking position that locks rotation of the reel to an allowing position that allows rotation of the reel. The metallic plate touches a sliding protrusion portion of the locking member at a touching surface of the release member. The release member molding method includes an arranging step of arranging the metallic plate in a die and a molding step of charging a resin material into the die and molding the main body in which the metallic plate is mounted. The die contacts a portion of the metallic plate that excludes the touching surface, and the die does not contact the touching surface.

A recording tape cartridge includes two first guide wall portions formed in a direction orthogonal to a loading direction of the case into a drive device and between which a first protruding wall portion formed at a brake member is insertable, and two second guide wall portions and two third guide wall portions formed at regular intervals from the first guide wall portions in a circumferential direction. A second protruding wall portion at the brake member is insertable between the second guide wall portions, and a third protruding wall portion at the brake member is insertable between the third guide wall portions. An interval, , between each first guide wall portion and the first protruding wall portion, and an interval, , between each second guide wall portion and the second protruding wall portion and between each third guide wall portion and the third protruding wall portion satisfy 2.

A recording tape cartridge includes a set of two first guide wall portions formed in a direction orthogonal to a loading direction of the case into a drive device and between which a first protruding wall portion formed at a brake member is insertable, and a set of two second guide wall portions and a set of two third guide wall portions formed at regular intervals from the first guide wall portions in a circumferential direction. A second protruding wall portion at the brake member is insertable between the second guide wall portions, and the third protruding wall portion at the brake member is insertable between the third guide wall portions. An interval between the each first guide wall portion and the first protruding wall portion is denoted by and an interval between the each second guide wall portion and the second protruding wall portion and an interval between the each third guide wall portion and the third protruding wall portion is denoted by , 2 is satisfied.