| Patent application number | Description | Published |
| 20080210801 | RECORDING TAPE CARTRIDGE - A leader pin is attached to an end portion of recording tape housed in a recording tape cartridge, and an opening for allowing the leader pin to be pulled out is formed in a side wall of a case. Holding portions that hold the leader pin are formed in the vicinity of the opening in the case. The leader pin includes, on both ends of a body portion, large diameter portions and flange portions disposed via neck portions on the large diameter portions. The holding portions include slit portions that open towards the opening and into which the neck portions enter, first concave portions that house the large diameter portions, and second concave portions that house the flange portions. The outer diameter of the flange portions of the leader pin is formed so as to be smaller than the outer diameter of the large diameter portions. | 09-04-2008 |
| 20100038466 | RECORDING TAPE CARTRIDGE - A recording tape cartridge can prevent release of rotation locking of a reel with respect to a case accompanying dropping of the recording tape cartridge. The tape recording cartridge is configured to rotatably accommodate within a case a reel that has magnetic tape wound on a reel hub. Within the reel hub, external teeth of a brake gear, of a brake member that is supported so as to be non-rotatable with respect to the case, mesh with an engaged gear having internal teeth, preventing rotation of the reel with respect to the case. Lock portions of lock members are inserted between the reel positioned biased to a bottom panel side by a compression coil spring, and a top panel, thereby preventing movement of the reel with respect to the case in the reel axial direction. | 02-18-2010 |
| 20100061017 | RECORDING TAPE CARTRIDGE - A recording tape cartridge comprising a casing that rotatably accommodates a single reel on which recording tape is wound; a shielding component that slides substantially along a side wall of the casing to open or block off an opening that is formed in the side wall for pulling out the recording tape; and a biasing projection provided projecting out from the casing and biasing the shielding component toward the side wall side when the shielding component has blocked off the opening. | 03-11-2010 |
| 20100123036 | REEL AND RECORDING TAPE CARTRIDGE - A reel includes a hub formed in a cylindrical-tube-shape with a base portion, on an outer peripheral surface of which a recording tape is wound; a base side flange portion that projects-out to a radial direction outer side of a base portion side of the hub; a flange member configured in a disc-shape or an annular-plate-shape of a material with an elastic modulus at least equal to a material that constitutes the hub, the flange member being coaxially joined to an opening end portion of the hub; a metal plate formed in a circular-plate-shape or an annular-plate-shape, which is fixed coaxially to the base portion of the hub; and a groove wall that is formed integrally with the base portion of the hub and forms a groove portion which is continuous around the entire periphery between the groove wall and an outer peripheral surface of the metal plate. | 05-20-2010 |
| 20110186674 | REEL FABRICATION METHOD, REEL AND RECORDING TAPE CARTRIDGE - A reel is provided with a hub, at an inner periphery face of which a projection portion that projects in a radial direction is formed, a first flange including a first extension portion that is extended in an axial direction of the hub, and a second flange including a second extension portion that is extended in the axial direction of the hub. A fabrication method of the reel includes: supporting a gear of the first flange at a reference portion of a pedestal, abutting the projection portion against the first extension portion, applying an ultrasonic horn to the projection portion and welding the projection portion to the first extension portion; and then abutting the second extension portion against the projection portion, applying the horn to the second extension portion or the second flange portion and welding the second extension portion to the projection portion. | 08-04-2011 |
| 20110192929 | REEL AND RECORDING TAPE CARTRIDGE - A reel hub, that is made of resin, of a reel has a cylindrical tube portion around whose outer peripheral surface a recording tape is wound, a floor portion that juts-out inwardly in a radial direction from one end portion in an axial direction of the cylindrical tube portion, and a reel plate that is made of metal and is fixed to the floor portion coaxially. A thin-walled portion, whose thickness is thinner than a radial direction thickness of the cylindrical tube portion, is formed continuously or intermittently over an entire periphery between an inner peripheral surface of the cylindrical tube portion and an outer peripheral surface of the reel plate in a radial direction of the floor portion. | 08-11-2011 |
| Patent application number | Description | Published |
| 20080197225 | RECORDING TAPE CARTRIDGE - A recording tape cartridge is provided that includes a leader pin attached, directly or through a leader tape, to an end portion of a recording tape, and includes flange portions formed at both ends thereof, an opening formed at a case, and from which the leader pin is pulled out; holding portions formed at an upper case and a lower case respectively, and holding respectively the flange portions of the leader pin in the vicinity of the opening; an overhang portion formed at at least one of the holding portions, and overlaping with the flange portion at an inner surface side thereof when the leader pin is held at the holding portions; and an elastic deformable engaging portion formed at at least one of the holding portions to urge the flange portion in an axial direction of the leader pin when the leader pin is held at the holding portions. | 08-21-2008 |
| 20090084881 | RECORDING TAPE CARTRIDGE - A recording tape cartridge is provided with a case rotatably accommodating a reel around which a tape is wound and including an opening from which the tape may be drawn out, a leader portion including guard portions disposed at both ends thereof in a width direction of a tape, recessed housing portions formed in the case as a vertical pair that face the opening and that allow the guard portions to be inserted, and a pair of leader holding members that form part of respective pin receiving portions together with the recessed housing portions. Each leader holding member includes, integrally, a fixed portion fixed to the inside of the case, a retaining spring that engages with one of the guard portions in one of the recessed housing portions from the opening side thereof, and an overhanging portion that covers the guard portion in one of the recessed housing portions. | 04-02-2009 |