Abstract: Structure of a lower case that reinforces a recording tape cartridge. At an inner side of the lower case, an annular projecting portion is provided along and at an inner side of a reel area rib that demarcates a reel area, raising stiffness of the case. At a periphery of a hole for positioning, which is formed in an outer face of the lower case, a recessed surface, which provides a height direction reference surface, is formed. At the inner side of the lower case, a boss is formed in correspondence to the hole for positioning. The boss is located along an outer face of the reel area rib. A thickness-enhancing portion is formed at the periphery of a base portion of the boss. Thus, thickness at the reference surface, that is, the recessed surface, is substantially the same as thickness at portions therearound.

Abstract: In the cartridge, the opening is formed diagonally to an arrow A direction by cutting away a corner portion at a drive device loading side, and the opening faces both the arrow A direction and an arrow B direction. A leader pin and a magnetic tape are drawn out along the minimal length path from the opening. A door, which is formed in a circular arc shape in plan view, is guided (to suppress looseness) by case screw bosses, protrusion portions and a guide surface while the door rotates to turn at an outer side of a pin stand and the reel without deviating from a movement path along the form of curvature of the door, and thus the opening is opened/closed.

Abstract: The present invention aim at providing a magnetic tape cartridge, which can be assembled using an automated products line by enabling the assembling operation of a spring member and a slide door with ease. For attaining these problems, there is provided a magnetic tape cartridge comprising a magnetic tape cartridge comprising; an opening provided on one side wall of a cartridge case, and is used for tape drawing; a slide door slidably supported by a guide part disposed along said one side wall, and said slide door is used for achieving the shutting-and-opening operation of said opening; a spring member for impelling said slide door to the shutting direction side, and is placed on said guide part; and a leading part for leading one end part of said spring member to a spring engaging part provided on said slide door, and is provided at one end part of said spring member.

Abstract: A cartridge is provided with a case, which accommodates a recording medium at an interior thereof, and a label area, which is surrounded by a rectangular standing wall at an outer face of the case. At one side of the standing wall, a longitudinal direction portion is cut away. Thus, a cut-away portion which is continuous with the label area is provided. The label area is formed at a rear wall, at a rear side in a direction of loading the case into a drive device. The cut-away portion is formed at a substantially central portion, in a longitudinal direction, of an upper side of the standing wall.

Abstract: The single reel tape cartridge with tape reel centering features provides one or more features to center the tape reel with respect to the interior surfaces of the tape cartridge housing and a rotatably driven feature, such as a drive chuck, in the tape drive that rotates the tape reel. The single reel tape cartridge with tape reel centering features provides mechanical positioning and centering of the tape reel with respect to the drive chuck of the tape drive when the tape cartridge is in any orientation and constrains lateral movement of the tape reel to prevent the tape reel from contacting the interior surfaces of the tape cartridge housing. This is accomplished by the use of a spring that applies a bias force to press the tape reel against the drive chuck in the tape drive, which rotates the tape reel. One end of the spring is seated in a spring sleeve that is formed in the center of the interior surface of the top section of the tape cartridge housing. The other end of the spring engages the tape reel.

Abstract: A reel has: a cylindrical hub, which is molded of a resin material, and around which a recording tape is wound; a pair of flanges provided at end portions of the hub, and holding transverse direction end portions of the recording tape; and a ring-shaped member formed of metal and disposed at an inner side of the hub, at least one portion of an outer peripheral surface of the ring-shaped member contacting an inner peripheral surface of the hub. The ring-shaped member of the reel contacts a substantially central portion, in a heightwise direction, of the inner peripheral surface of the hub.

Abstract: The object of the invention is to provide a magnetic tape cartridge, in which a release pad can be assembled securely by a robot. A magnetic tape cartridge including: a reel around which a magnetic tape is wound; a cartridge case which houses the reel in a locked position; a release pad for releasing locking of the reel; and a cup-like hub of the reel in which the release pad is mounted, wherein a plurality of guide holes for allowing a plurality of lock release pins to penetrate therein, which extend from the lower surface of the release pad, are made in the periphery of a base plate of the cup-like hub, and a plurality of pairs of guide ribs, which are capable of guiding the plurality of lock release pins to the plurality of guide holes, stand inside the cup-like hub corresponding to the plurality of guide holes.

Abstract: A recording tape cartridge has a rectangular case which rotatably accommodates a single reel on which a recording tape is wound, an opening which is formed in the case and is for pulling-out of a leader member attached to an end portion of the recording tape, a shielding member for opening and closing the opening by sliding, and an urging member for urging the shielding member in a direction of closing the opening. A supporting portion, which supports the urging member in a cantilevered state, is formed at a portion for attachment of the urging member, which portion for attachment is provided at the shielding member.

Abstract: A recording tape cartridge including: a reel, and gear teeth are provided at an inner side of a floor portion of a reel hub on which a recording tape is wound; a case which accommodates the reel, and an engaging projection is formed at a surface of the case opposing the floor portion of the reel hub; a braking member having a disc, and a braking gear, which is annular and which can mesh with the gear teeth, is provided at one surface of the disc, and the braking member can move within the case in a direction of thickness of the case; and a groove wall portion standing erect at the disc and demarcating an insertion groove in which the engaging projection enters over an entire stroke of movement of the braking member. The groove wall portion impedes rotation of the braking member, and guides the braking member.

Abstract: A tape cartridge, for use with a tape drive having an actuation member, includes a cartridge body and a door movably associated with the cartridge body. The cartridge further includes a retractor member having a first portion attached to the door and a second portion attached to the cartridge body such that the second portion is pivotable with respect to the cartridge body. The retractor member is configured to engage the actuation member of the tape drive and to move the door toward an open position when the cartridge body is inserted into the tape drive.

Abstract: A magnetic tape cartridge comprises: a reel 2 around which a magnetic tape MT is wound; a cartridge case 1 for accommodating the reel 2 in a locked state; and a release pad 5 inserted into a cup-shaped hub 2A of the reel 2 in a locked state of the reel 2. The release pad 5 includes a pad body 5A having a plurality of corners to be faced proximately to the inner peripheral surface 2C of the cup-shaped hub 2A, and a plurality of lock releasing pins 5B projecting downwardly from a bottom surface of the pad body 5A at the respective corners and inserted through a bottom surface of the cup-shaped hub 2A. The release pad 5 is provided with a flank 5E extending from each corner downwardly through the respective lock release pin 5B so that an assembling clearance is formed with respect to an inner periphery of a flange 2G position in an open side of the cup-shaped hub 2A.

Abstract: Disclosed herein is a magnetic tape cartridge in which reliability has been enhanced by preventing a thin insertion-guide portion, provided in an opening for guiding a leader pin, from being deformed due to shock produced by dropping, etc. The magnetic tape cartridge has a cartridge case 4 in which a single reel with magnetic tape 6 wound thereon is rotatably housed. In an opening 10 through which a leader member 5 rigidly attached to the leading end of the magnetic tape 6 is pulled in and out, an insertion-guide portion 21 for guiding an end portion of the leader member 5 is formed by making the case wall surface thin, and a cutout is provided on at least one side of the insertion-guide portion 21 at a position of an edge of the opening 10.

Abstract: A tape cartridge is characterized by being provided with an opening to pull out a tape formed at a corner of a cartridge case; a curved door to open/close the opening; a slide mechanism to slide the door for the cartridge case; a door-side spring hooking portion formed at an end of said door; a case-side spring hooking portion formed on a bottom surface of the cartridge case; a coiled spring which is attached across the door-side spring hooking portion and case-side spring hooking portion, and energizes the door so as to close; and a regulation portion which is provided on one surface of the door, in which one end of a coiled spring is trial-fitted on a door-side spring hooking portion, and which is composed so as to regulate a position of the coiled spring when the coiled spring is pressed on one surface of the door.

Abstract: A tape cartridge includes a reel and a data tape to store data. The data tape is wound on the reel and has side edges. The tape cartridge further comprises a leader tape, and a splicing tape to link the leader tape to the data tape. The splicing tape has an edge with a slanted portion that is slanted with respect to the side edges of the data tape.

Abstract: A cartridge assembly (10) includes a cartridge (12) and a cartridge retainer (14). The cartridge (12) includes a reel (22) having a rotational axis (46) and a flange (48, 50). The cartridge (12) also includes a cartridge housing (16) that rotatably secures the reel (22). The cartridge housing includes one or more interior surfaces (19, 21). The reel (22) is adapted to tilt relative to the cartridge housing (16). The cartridge housing (16) includes a plurality of ribs (30) each having a chamfer (72). The ribs (30) can be disposed on an upper housing section (18) and/or a lower housing section (20) of the cartridge housing (16). The reel (22) has a contact tilt angle ?1 relative to the interior surface (19, 21), and at least one of the chamfers (72) has a chamfer angle ?2 relative to the interior surface (19, 21) that is substantially similar to the contact tilt angle ?1. The flange (48, 50) contacts the chamfer (72) so that the flange (48, 50) is substantially parallel with the chamfer (72).

Abstract: The present invention relates to a leader member attached to a recording tape to be contained in a recording tape cartridge. A pin is provided at each end of the leader member, and the pins are resiliently projectable by springs. The springs each absorb a load generated when the leader member is attached to or detached from a cartridge case. A receiving portion is provided independently from a connecting portion which connect to the leader member. In order to eliminate changes to a length of the connecting portion due to compression of the spring and to allow smooth connection of the leader member and the connection portion, the pin resiliently projects from the recess provided at an axial center of the receiving.

Abstract: A roll holder device is for use with a recording paper roll including a tubular spool shaft and continuous recording paper wound about the tubular spool shaft in a roll form. In the roll holder device, first and second holder cores are inserted in respectively first and second ends of the tubular spool shaft. A holder frame supports the first and second holder cores in a rotatable manner. Anti-dropping levers prevent the tubular spool shaft from dropping from the first and second holder cores by pushing a shaft inner surface of the tubular spool shaft.

Abstract: Methods and apparatuses for identifying a single reel tape cartridge format, in a single reel tape handling device, from a plurality of available formats. According to one aspect of the invention, cartridge identification information is provisioned on a single reel tape cartridge leader. The cartridge identification information is detectable by the tape handling device and usable to identify a format of the tape cartridge from a plurality of available formats. The cartridge identification information includes at least one feature on the tape cartridge leader having characteristics indicative to the tape handling device of the format of the tape cartridge presented to the tape handling device.

Abstract: A data storage tape cartridge includes a housing having a surface resistivity in a range of approximately 106 ohms/square to approximately 1012 ohms/square, at least one tape reel rotatably disposed within the housing, and a length of magnetic storage tape wound around the at least one tape reel.

Abstract: A single reel data storage tape cartridge is described that includes a housing having a tape access window. A single tape reel assembly is rotatably disposed within the housing and includes a hub about which a storage tape is wrapped. A tape guide is disposed within the housing adjacent the single tape reel assembly, opposite the tape access window, and is configured to define a pathway of the storage tape from the single tape reel assembly to the tape access window and limit lateral motion of the storage tape.

Abstract: A tape cartridge includes a case, which is made of a lower case and an upper case, for accommodating a reel wound with a magnetic tape. The lower case includes a bottom surface disposed with two positioning holes formed separately from each other on a straight line orthogonal to a direction in which the tape cartridge is loaded into a drive device. The lower case also includes a front wall disposed with two surfaces for regulating a depth to which the case is loaded in the drive device. The two surfaces are positioned on straight lines that pass along the loading direction through the center of the positioning holes when seen from below. Positioning pins of the drive device are inserted into the positioning holes when regulating protrusions of the drive device abut against the two surfaces to regulate the depth to which the case is loaded.

Abstract: A metal plate of a recording tape cartridge is provided with a tapered portion at an outer circumference thereof. In a state in which the metal plate is attached at a fixed-side mold plate of a metal mold for molding a reel hub and a lower flange, a gap is formed between the tapered portion and the fixed-side mold plate. During molding, molding material flows into the gap. Because of this gap, an annular pawl portion is formed at the reel hub, which annular pawl portion integrally joins the metal plate with the reel hub by sandwiching the metal plate via the tapered portion.

Abstract: An opening, for pulling-out of a recording tape, and a closing member, which slides so as to open and close the opening, are provided at a substantially rectangular case of a recording tape cartridge which rotatably accommodates a single reel on which the recording tape is wound. An urging member, which urges the closing member in a direction of closing the opening, is attached to the closing member. An anchor projection, to which one end of the urging member is attached, is provided at an inner surface of the case. A holding projection, which projects in a same direction as the anchor projection and to which another end of the urging member is attached, is provided at the closing member. The recording tape cartridge is provided in which an assembly performance of the closing member and the urging member into the case is improved.

Abstract: A recording tape cartridge has a substantially rectangular case. An upper case and a lower case are joined together by peripheral walls thereof abutting each other. A reel, on which a recording tape T is wound, is rotatably accommodated in the case. An opening for pulling-out of an end portion of the recording tape T is formed in the case. A shielding member, which opens and closes the opening, is held slidably in the case. A projection (operation portion), which engages with an engaging mechanism of a drive device, is formed at the shielding member. A slit is formed in a peripheral wall such that the projection is slid in a state of being exposed. A distal end surface of the projection exposed from the slit is formed so as to be substantially flush with the peripheral wall when the shielding member closes the opening.

Abstract: A magnetic tape cartridge with an improved reel-rotation restraining mechanism is disclosed. The reel-rotation restraining mechanism has a reel locking member, which is movable toward and away from the reel, for restricting rotation thereof; an urging member for urging the reel locking member in a restraining direction; and an releasing member, which is rotatable integrally with the reel, for moving the reel locking member in an unlocking direction by moving according to a chucking operation of a rotation drive mechanism of a drive unit. The releasing member has three leg portions on the vertexes of a triangular plate portion insertable into through holes in the reel. The releasing member is sized so that with part of the releasing member inserted into a center opening of the reel, and two of the three leg portions positioned near the through holes, the remaining one leg portion can be dropped and inserted within the center opening.

Abstract: A tape guide for limiting lateral tape movement within a tape transport system component, such as a data storage tape cartridge. The storage tape, having a tape width, extends between two tape reels along a tape path defined, at least in part, by the tape guide. The tape guide includes a tape contact face, a top flange and a one bottom flange. The tape guide is configured to define an effective tape path width between the top and bottom flanges that is less than the tape width. During use, the tape guide biases the tape path to minimize lateral motion of the storage tape.

Abstract: A recording tape cartridge disclosed with an increased strength leads to a compact drive device. A rectangular case of the recording tape cartridge accommodates a single reel on which a recording tape is wound. An opening for pulling out a leader member attached to an end of the recording tape is formed in a corner disposed closest to the drive device among corners of the case at the time of insertion into the drive device. The recording tape cartridge includes a shield slidable to open and close the opening, a guide wall for guiding the shield, and a friction-reducing device protruding from the shield. The guide wall is provided along an inner surface of the case. The friction-reducing device abuts the guide surface of the guide wall in order to reduce friction between the shield and the guide surface.

Abstract: A single-reel tape cartridge includes a casing having a drive access hole defined therein, and a single tape reel rotatably accommodated within the casing and having a length of tape wound therearound. The tape reel includes a first flange having an opening defined therein, and a second flange with a hollow reel hub intervening therebetween. The tape cartridge includes a reel locking mechanism for preventing the tape reel from undergoing any arbitrary motion within the casing and a reel restraint mechanism for preventing the reel from undergoing an arbitrary motion in a direction laterally within the casing.

Abstract: A recording tape cartridge in which it is possible to reinforce, in a small space, a side wall which is weak in terms of strength due to formation of an opening. The recording tape cartridge has a case which rotatably accommodates a single reel on which a recording tape is wound; an opening, formed in a side wall of the case, for pulling-out of a leader pin attached to an end portion of the recording tape; a pin holding portion holding the leader pin in a vicinity of the opening; an anchor spring holding the leader pin at the pin holding portion by pressing the leader pin by a free end; and a spring holding portion holding a proximal portion of the anchor spring in a vicinity of the pin holding portion. The spring holding portion is formed by ribs which jut out into the case from the side wall; and an anchor portion, the anchor spring being held between the anchor portion and the ribs.

Abstract: A recording tape cartridge in which feeding out and rewinding of a recording tape can preferably performed and a positioning of a reel in a height direction can be accurately performed. The recording tape cartridge having a case in which a single reel including a hub which has upper and lower flange portions and on which a recording tape is wound is accommodated, a gear for rotating the reel, which is provided at a central portion of a lower surface of the reel and meshed with a driving gear of a drive device at only planes substantially orthogonal to radial directions of the reel, and a reference portion, which is provided at the lower surface of the reel, for positioning the reel in an axial direction of the reel by abutting on a portion for positioning of the drive device, is provided.

Abstract: A metal plate of a recording tape cartridge is provided with a tapered portion at an outer circumference thereof. In a state in which the metal plate is attached at a fixed-side mold plate of a metal mold for molding a reel hub and a lower flange, a gap is formed between the tapered portion and the fixed-side mold plate. During molding, molding material flows into the gap. Because of this gap, an annular pawl portion is formed at the reel hub, which annular pawl portion integrally joins the metal plate with the reel hub by sandwiching the metal plate via the tapered portion.

Abstract: A recording tape cartridge of the invention houses a reel inside a case formed by joining together an upper case and a lower case. The reel includes a reel hub around which is wound a recording tape, with flanges being disposed at both axial-direction end portions of the reel hub. Movement of the reel in the axial (vertical) direction inside the case is possible. Upper ribs are disposed, in a radial manner coaxial with the reel and at equal intervals, so as to vertically project from an inner surface of the upper case opposing the flange of the upper case. The upper ribs are disposed, in a radial shape coaxial with the reel and at equal intervals, so as to vertically project from an inner surface of the lower case. The upper ribs and the lower ribs are disposed so as to have a phase difference therebetween in a circumferential direction.

Abstract: A step portion is provided in a bottom surface of a concave portion of an upper case of the magnetic tape cartridge, at a rear end side in a loading direction of the magnetic tape cartridge. By providing the step portion at the concave portion of the upper case in this way, it is possible to increase a surface area of planar-contact between a side wall of the concave portion and a planarly-contacting portion of a claw portion of an upper hand portion forming a robot hand. Thus, when the magnetic tape cartridge is to be nipped, it is easy for the claw portion to catch thereon. Even if a top surface of the upper case swells slightly due to a spring provided within a case, the claw portion can reliably catch on the side wall of the concave portion.

Abstract: In the cartridge, the opening is formed diagonally to an arrow A direction by cutting away a corner portion at a drive device loading side of a case, and the opening faces both the arrow A direction and an arrow B direction. A leader pin and a magnetic tape are drawn out along the minimal length path from the opening. An operation projection of a door of the opening is pushed to move rearward by an operation of loading the case into the drive. The door, which is curvedly formed in a circular arc shape, rotates to turn at an outer side of a pin stand and the reel without deviating from a movement path along the curved form, and opens/closes the opening aperture.

Abstract: The object of the invention is to provide a magnetic tape cartridge, in which a release pad can be assembled securely by a robot. A magnetic tape cartridge including: a reel around which a magnetic tape is wound; a cartridge case which houses the reel in a locked position; a release pad for releasing locking of the reel; and a cup-like hub of the reel in which the release pad is mounted, wherein a plurality of guide holes for allowing a plurality of lock release pins to penetrate therein, which extend from the lower surface of the release pad, are made in the periphery of a base plate of the cup-like hub, and a plurality of pairs of guide ribs, which are capable of guiding the plurality of lock release pins to the plurality of guide holes, stand inside the cup-like hub corresponding to the plurality of guide holes.

Abstract: A recording tape cartridge is provided with a substantially rectangular case, which includes an upper case and a lower case rotatably housing a single reel wound with a recording tape T, and a non-contact memory M, in which is stored various information such as recording capacity and which is disposed at a predetermined angle of inclination inside the case. A pair of screw bosses is formed near both corner portions at a rear side in a direction in which the case is loaded into a drive device, and screws for joining the upper case and the lower case are passed through the screw bosses. The memory M is disposed so that at least part of the memory M is positioned on a virtual straight line T joining the respective screw bosses when seen in plan view. Positional precision of the memory inside the case is improved.

Abstract: The single reel tape cartridge with tape reel centering features provides one or more features to center the tape reel with respect to the interior surfaces of the tape cartridge housing and a rotatably driven feature, such as a drive chuck, in the tape drive that rotates the tape reel. The single reel tape cartridge with tape reel centering features provides mechanical positioning and centering of the tape reel with respect to the drive chuck of the tape drive when the tape cartridge is in any orientation and constrains lateral movement of the tape reel to prevent the tape reel from contacting the interior surfaces of the tape cartridge housing. This is accomplished by the use of a spring that applies a bias force to press the tape reel against the drive chuck in the tape drive, which rotates the tape reel. One end of the spring is seated in a spring sleeve that is formed in the center of the interior surface of the top section of the tape cartridge housing. The other end of the spring engages the tape reel.

Abstract: A tape guide for use in a tape transport system, such as a data storage tape cartridge or a tape drive. The storage tape extends from the tape reel along a tape path that includes the tape guide. In this regard, the tape guide includes a tape contact face and at least one guide flange. Extension of the guide flange relative to the tape contact face defines an angle of not less than 90°. With this configuration, an edge of the storage tape is directed to move along the guide flange with lateral tape movement so as to minimize the opportunity for micro-buckling. In one preferred embodiment, a portion of the guide flange is curved.

Abstract: A single reel data storage tape cartridge is described that includes a housing having a tape access window. A single tape reel assembly is rotatably disposed within the housing and includes a hub about which a storage tape is wrapped. A tape guide is disposed within the housing adjacent the single tape reel assembly, opposite the tape access window, and is configured to define a pathway of the storage tape from the single tape reel assembly to the tape access window and limit lateral motion of the storage tape.

Abstract: The present magnetic tape cartridge having a data storage medium connected to an integral cleaning tape section is designed to accommodate the length of cleaning tape in a manner that is compatible with existing tape drive systems. In particular, the hub on the supply reel in the single reel magnetic tape cartridge is dimensioned to accept the length of cleaning tape such that the radial position of the End Of Tape hole in the magnetic tape media occurs in the same position as that of existing single reel magnetic tape cartridges that are not equipped with the length of cleaning tape appended to the magnetic tape media. This enables the cleaning tape equipped magnetic tape cartridge to be compatible with existing tape drive systems.

Abstract: A film core article and methods for making the same are provided. The film core article has a generally cylindrical outer surface adapted to receive said length of film, said outer surface further comprising a recess formed in the outer surface and shaped to receive a housing of a circuitry chip of a radio-frequency transponder provided on a flexible substrate that is joined to the outer surface before the core receives the length of film.

Abstract: A recording tape cartridge which, with a structure having good produceability, can prevent wear of regions of abutment of a braking member and a releasing member at a time when a reel rotates. In the recording tape cartridge, when the braking member is positioned at a rotation locking position at which the braking member is engaged with an engaging gear provided at a floor portion of a reel hub, rotation of the reel, which is accommodated within a case, with respect to the case is impeded. When the braking member is held at a rotation permitting position at which engagement is released while the braking member abuts a clutch member, rotation of the reel with respect to the case is permitted. The braking member and the clutch member are respectively formed by resin molding, and abut one another at a slide-contact projection which is a resin portion, and a metal plate which is fixed to a clutch main body by caulking.

Abstract: A recording tape cartridge is provided in which an inclined wall is formed at a rear end side of a lower case in a direction of loading into a drive device, and a non-contact-type memory board, which stores generation information such as a storage capacity or the like, is mounted along an inner surface of the inclined wall. Even if an inclined supporting mount or the like is not provided within a case, the memory board is set at an incline. By setting the memory board at an incline in this way, information can be recorded or read from a rear surface side and a bottom surface side of the case. Because there is no need for a supporting mount or the like, a structure of the case is simple and it is unlikely for obstacles to electromagnetic waves to arise.

Abstract: A drive chuck of a tape drive system for operatively engaging a tape reel of a data storage tape cartridge. The tape reel includes a circular ring of outwardly projecting reel teeth that defines inner and outer circumferential faces. The drive chuck includes a circular ring of drive chuck teeth and an alignment feature. The alignment feature is radially spaced from the drive chuck teeth and includes a radial contact surface. The radial contact surface is configured and positioned to contact one of the inner and outer circumferential faces upon operative engagement between the drive chuck and the tape reel. In one preferred embodiment, the alignment feature is a ring positioned to contact the outer circumferential face of the ring of reel teeth.

Abstract: Disclosed herein is a magnetic tape cartridge including a reel-rotation restraining member which restricts rotation of a reel when not used and allows the rotation of the reel when used. The reel-rotation restraining member has a restraining member, an urging member, and an unlocking member. The restraining member has a restraining gear which meshes with a locking tooth portion, and the restraining member is supported by a support portion of the cartridge case. In the magnetic tape cartridge, the following relationship is met: b≦(2×a×c)/d where “a” represents the length of engagement between the restraining member in an unlocked state and the support portion, “b” represents the clearance between the restraining member and the support portion, “c” represents the space between the tooth of the restraining gear and the locking tooth portion, and “d” represents the outside diameter of the restraining gear.

Abstract: A recording tape cartridge which can be loaded in a drive device by a robot hand which grips the recording tape cartridge from above and below. A pair of ribs along a loading direction of a recording tape cartridge are formed at an angled surface portion of a lower case. A separation distance between these ribs is substantially the same as a width of a lower hand portion of a robot hand. The robot hand grips the recording tape cartridge such that the lower hand portion of the robot hand is disposed between the two ribs. When the recording tape cartridge is being loaded into the drive device, the ribs abut against lateral direction end surfaces of the lower hand portion. Thus, positioning of the recording tape cartridge in the lateral direction relative to the lower hand portion is achieved through the ribs.

Abstract: A recording tape cartridge which can be assuredly positioned in a drive device. A positioning cover bridges across and parallel to a mounting portion of a bucket of the drive device. Stoppers are provided at corner portions of the positioning cover that are positioned at a deeper side of the bucket. Angled surfaces, which are surface-contactable with the stoppers, are provided at a magnetic tape cartridge. The magnetic tape cartridge can be positioned in horizontal directions in the drive device by surface-contacting the angled surfaces with the stoppers. Consequently, reference holes for positioning the magnetic tape cartridge in horizontal directions in the bucket are not required.

Abstract: A roll holder device is for use with a recording paper roll including a tubular spool shaft and continuous recording paper wound about the tubular spool shaft in a roll form. In the roll holder device, first and second holder cores are inserted in respectively first and second ends of the tubular spool shaft. A holder frame supports the first and second holder cores in a rotatable manner. Anti-dropping levers prevent the tubular spool shaft from dropping from the first and second holder cores by pushing a shaft inner surface of the tubular spool shaft.

Abstract: A tape cartridge comprising a housing, a tape reel disposed within that housing, where that tape reel is capable of rotation around a first axis, and where that tape reel includes a hub and a reel coupling which is engageable with a motor coupling for rotation of the tape reel. The tape cartridge further includes a brake plate disposed within the hub, where that brake plate is capable of moving in a first direction and in an opposing second direction along the first axis, but where the brake plate is not capable of rotation around the first axis. The brake plate includes a first side, an opposing second side, a brake plate gear disposed on the second side, and a fixturing assembly disposed on the first side. The tape cartridge further includes a clutch plate disposed within the hub, where that clutch plate is capable of moving in a first direction and in an opposing second direction along the first axis, and where that clutch plate is capable of rotation around the first axis.

Abstract: The present invention aim at providing a magnetic tape cartridge, which can be assembled using an automated products line by enabling the assembling operation of a spring member and a slide door with ease.