Abstract: A disk cartridge that has high durability with respect to a drop impact is provided. The disk cartridge includes: a disk-like recording medium; a cartridge case that rotatably accommodates the disk-like recording medium and is formed with a first opening that exposes a part of the disk-like recording medium; an inner rotor that is rotatably supported inside the cartridge case and includes a main surface portion formed with a second opening corresponding to the first opening; shutter members that are movable between a closing position at which the first opening is closed and an opening position at which the first opening is opened in accordance with a rotation of the inner rotor; and a buffer mechanism that is formed on the main surface portion of the inner rotor and includes rotary shafts that rotatably support the shutter members and elastic support portions that respectively support the rotary shafts and can be elastically deformed with respect to the main surface portion.

Abstract: A disk cartridge that has high durability with respect to a drop impact is provided. The disk cartridge includes: a disk-like recording medium; a cartridge case that rotatably accommodates the disk-like recording medium and is formed with a first opening that exposes a part of the disk-like recording medium; an inner rotor that is rotatably supported inside the cartridge case and includes a main surface portion formed with a second opening corresponding to the first opening; shutter members that are movable between a closing position at which the first opening is closed and an opening position at which the first opening is opened in accordance with a rotation of the inner rotor; and a buffer mechanism that is formed on the main surface portion of the inner rotor and includes rotary shafts that rotatably support the shutter members and elastic support portions that respectively support the rotary shafts and can be elastically deformed with respect to the main surface portion.

Abstract: An electronic device includes a housing, an expansion card holder, and a protective cover assembly. The housing defines an opening. The expansion card holder is located inside the housing. The protective cover assembly includes a rotary shaft unit, and a cover rotatably connected to the main body via the rotary shaft unit. The cover includes a main body made of soft material, and an elastic member embedded in the main body. The main body includes a cover portion covering the opening, a resisting portion resisting against the housing, and a connecting portion interconnecting the cover portion and the resisting portion. The elastic member includes a first elastic arm and a second elastic arm. The first and the second elastic arms are embedded in the cover portion and the resisting portion, respectively. The elastic member provides a resilient force to the cover portion to open or seal the opening automatically.

Abstract: A disk cartridge includes: a pair of disk housing portions, housing a disk entirely when put together; a supporting base member with a disk housing rotating and supporting portion for rotating and supporting the housing portions to open or shut a window to the disk such that the disk gets chucked externally, and a head can access the disk and read and write information from/on the storage layer thereof, though the window; and a locking unit including a pair of locking lever portions to keep the housing portions closed from rotating and a locking lever supporting portion supporting the lever portions rotatably and attached to the base member, wherein the pair of disk housing portions open the window wide enough to remove the disk while the lock unit is not inserted into the supporting base member, and contact with the lock unit and have their angle of rotation limited while the lock unit is inserted into the supporting base member, thereby controlling the size of the window such that the disk is unremovable.

Abstract: A method of fabricating a cartridge for an optical data storage disc includes attaching a plastic shell and a sheet metal cover plate. The shell includes lateral walls and a floor that together define a disc cavity and a plurality of assembly posts. The sheet metal cover plate includes a plurality of holes. To attach the cover plate to the shell, the assembly posts are inserted into the holes, and the ends of the assembly posts are heated to form mushroom caps which hold the cover plate against the shell. The optical disc is housed in the disc cavity, with the data side of the disc facing the cover plate. A sheet metal shutter is wrapped around an edge of the cartridge and over the shell and cover plate.

Abstract: A light shield plate 12 having outer openings 14 and 15 is fixed to the outside of a cartridge body 11 in which inner openings 18 and 19 for exposing a photosensitive recording medium 4 to the outside are formed. A shutter 13 for opening and closing the inner openings 18 and 19 is incorporated movably between the cartridge body 11 and the light shield plate 12. Closing-side ends 55e and 55f of the shutter 13 and shutter-closing-side edges 18a and 19a of the inner openings 18 and 19 and/or shutter-closing-side edges 14a and 15a of the outer openings 14 and 15 are inclined from each other.

Abstract: A disk cartridge capable of smoothly opening/closing a head opening without enlarging a second shutter. In a disk cartridge, a disc-shaped disk medium is rotatably housed in a disk housing portion of a case, and a head opening through which a head of a drive device accesses a recording face is formed in the bottom plate of the case. The head opening is closed when an end of a first shutter, which is rotatable coaxially with the disk medium and an end of a second shutter swingable around an axis different from that of the first shutter come into contact with each other. Each of the contact ends of the first and second shutters includes an arc portion having the axis of turn of the second shutter as a center.

Abstract: The disc cartridge of the present invention includes a cartridge body 11, 12, shutters 21, 22, disc holding portions and a stopper member 23. The cartridge body has a disc window 12w and a bottom 11u and stores a disc 100 in a rotatable state with one side exposed through the disc window. A bottom window 11c, 11h is opened through the bottom so as to get the disc chucked and to allow a head to access it. The shutters 21, 22 open or shut the bottom window 11c, 11h. A rotational member 25 is supported by the cartridge body 11, 12 to be rotatable and interlocked with the shutters 21, 22 so as to open and close the shutters 21, 22 by rotating. The disc holding portions 21d, 22c, 22d interlock with the shutters 21, 22 opening or closing to hold or release the disc 100. The stopper member 23 is supported by the cartridge body to take a position protruding into the disc window 12w or a non-protruding position.

Abstract: According to the present invention, there is provided a disk cartridge capable of being made compact although the disc cartridge has double structure, which cartridge is improved in light blocking effect and dustproof property, and is particularly suitable for use as a media disk. In this disk cartridge, a shutter is slidably mounted between an inner case and an outer case, and a joint surfaces of upper and lower halves of the inner case, and joint surfaces of upper and lower halves of the outer case are provided at positions at different heights. Light incidence preventing parts which consist of sets of a plurality of lines of ribbed projections are formed on an inner surface of the upper half and an inner surface of the lower half of the outer case.

Abstract: A disc cartridge is constructed so that disc access to a recording medium enclosed within the disc cartridge via an opening in the cartridge case is restricted by a disc tray and a shutter member disposed inside the cartridge case. The shutter member is rotatably attached to one of the disc tray and the cartridge case, and detachment of the shutter member is restricted at least in a range of rotation of the shutter member between a position where the shutter member covers part of the opening and a position where the shutter member has been withdrawn from the opening. Attachment of the shutter member is carried out without crimping.

Abstract: A disc cartridge includes: a disc storage portion; first and second shutters provided on the bottom of the disc storage portion; and a rotational member interlocked with the shutters and having a disc supporting portion to support the disc thereon while the shutters are closed and a notch to be located inside a head opening while the shutters are opened. The shutters include disc holders for holding the disc thereon with the center of the disc offset from that of the disc storage portion such that an outer side surface of the disc contacts with the sidewall of the disc storage portion at a position where the notch is located while the shutters are closed. The inner circumference of a region, where the disc supporting portion contacts with the second side of the disc, defines a circle that has its center offset from the center of the disc storage portion.

Abstract: A disk cartridge housing an optical disk is provided, a rotation wheel is housed rotatably in a cartridge body and which houses the disk and has formed therein a second opening corresponding to a first opening and through which the housed disk is exposed to outside, and a pair of shutter plates which are pivoted in conjunction with the rotation of the rotation wheel to uncover the first and second openings when the latter coincide with each other. The rotation wheel has formed at the front side thereof, at which the disk cartridge is first inserted into a disk recorder and/or player, a to-be-operated portion in which a shutter releasing portion of the disk recorder and/or player is engaged, and the to-be-operated portion is formed from a concavity opening the front side of the disk cartridge at which the latter is first inserted into the disk recorder and/or player.

Abstract: The present invention relates to a disk cartridge in which a disk-like recording medium such as an optical disk, a magneto-optical disk and a magnetic disk is accommodated within a disk compartment of a cartridge housing, a disk recording medium device in which the disk-like recording medium is accommodated in advance within the disk compartment so as to become freely rotatable and a disk recording and/or reproducing apparatus for recording and/or reproducing information by using this disk recording medium device.

Abstract: A disc cartridge consisting of an upper shell and a lower shell and an inner rotor rotatably arranged between them for housing an optical disc. The lower shell has a bottom opening that is opened and closed by shutter members, the optical disc is upwardly supported by its central part on a first pair of disc mount members that are formed near the periphery of the internal opening formed on the bottom of the inner rotor and by a second pair of disc mount members formed on the shutter members.

Abstract: A disk cartridge includes a case accommodating a disk, a cover installed at the case to be capable of being open and shut and having a hole formed thereon to be open to an outside of the cover, a shutter installed under the disk in the case to be capable of moving to open and shut an opening formed on the case, and a clamping member installed at the cover to seal the hole to clamp the disk. Thus, since the clamping member blocks the hole of the cover connected to the outside of the cover, possibility of intrusion of dust into the disk cartridge is reduced. Also, since there is no need to install the clamping member at the disk drive, the disk drive can be made simplified and slim.

Abstract: A disc cartridge includes: a cartridge body including a disc storage portion storing a disc, having first and second sides, therein so that the disc is rotatable there and that the first side is exposed and chucking and head opening formed on the bottom of the storage portion so as to get the disc chucked externally and allow a read/write head to access the second side, respectively; a shutter supported, and movable with respect to the cartridge body, between the second side of the disc and the bottom of the disc storage portion so as to expose or cover the chucking and head openings and defining a hole under a center hole of the disc while the shutter is closed; and a disc holder provided for the shutter and pressing the disc against the shutter and holding it thereon while the chucking and head openings are covered with the shutter.

Abstract: A slidable rotation of the inner shell to the outer shell causes slidable rotation of the shutter members to open or close the opening portion of the outer shell, and the disk cartridge is inserted into an insertion opening of the disk drive apparatus so that the disk-shaped recording medium is mounted on the disk table to be used. An discrimination groove opened at least to an insertion direction side to the insertion opening of the disk drive apparatus for performing discrimination from another type of the disk cartridge is formed on the outer shell.

Abstract: A disk cartridge storing an optical disk includes a cartridge main body including a lower shell formed with a first opening and an upper shell abutted against the lower shell, a rotation wheel rotatably stored in the cartridge main body and storing the optical disk and formed with a second opening to cause the stored optical disk to face outside, and a pair of shutter plates positioned between the lower shell and the rotation wheel so that when the first and second openings coincide with each other in operative association with the rotation of the rotation wheel, these openings are opened. The rotation wheel is formed with an engagement groove adapted to engage the peripheral edge of one shutter plate.

Abstract: A disk cartridge includes a case accommodating a disk and having a first hole, a cover installed at the case and having a second hole open to an outside of the cover, a shutter installed to be capable of moving with respect to the case disposed under the disk to open/shut the first hole formed on the case, and a plurality of protruding portions provided at the shutter to support a non information area provided at an outer circumferential side of the disk and having inclined surfaces inclined at a predetermined angle. When the shutter is opened, the disk descends along the inclined surfaces. When the shutter is shut, the disk ascends along the inclined surfaces to closely contact a portion of the cover disposed around the second hole of the cover. Thus, since the shutter contacts only a non-information area of the disk, an information area of the disk can be safely kept from being damaged during an operation of opening/shutting the first hole.

Abstract: A disk cartridge includes a case to accommodate a disk, and a shutter installed in the case to move under the disk, and to selectively open/shut an opening hole formed in the case. The disk cartridge includes a support portion to protrude from the shutter to support a non-information area of the disk. Thus, since the shutter contacts only the non-information area of the disk, the information area of the disk is protected during an operation of the shutter to open and shut the opening hole.

Abstract: A disc cartridge includes a cartridge body, first and second shutters, and a rotational member. The cartridge body includes a disc storage portion to store a disc in a rotatable state, a chucking hole provided on the bottom of the disc storage portion so as to get the disc chucked externally, and a head access window provided on the bottom of the disc storage portion so as to allow a head, which reads and/or writes data from/on the disc, to access the disc. The first and second shutters are provided so as to expose or cover the head access window by rotating in the disc storage portion. The rotational member is provided so as to rotate in the disc storage portion, too. The first and second shutters are interlocked with the rotational member so as to rotate in mutually opposite directions and at respectively different velocities.

Abstract: A method for producing an inner shell used for a disc cartridge in which an optical disc, an inner shell and shutter members are housed in a main cartridge body unit. The inner shell provided in the main cartridge body unit includes a first molded portion, provided with an aperture, a second molded portion having a resin injection port and molded at a position where the aperture is formed, and a flanged thin-walled section connecting the first and second molded portions to each other. The method includes the steps of injecting molten resin into a cavity defined by a fixed metal die and a movable metal die for molding the first molded portion, the second molded portion, and the flanged thin-walled section, and severing the flanged thin-walled section by a punch provided to the movable metal die before the molten resin injected into the cavity is cooled and solidified.

Abstract: The present invention is relative to a disc cartridge in which an optical disc (3), an inner shell (4) and shutter members (5a), (5b) are housed in a main cartridge body unit (2), formed by abutting and combining upper and lower shells (6), (7), and in which the inner shell is run in rotation to cause the shutter members (5a), (5b) to open or close an aperture (24) provided in the main cartridge body unit (2). On an inner side of the peripheral wall sections of the upper and lower shells, abutted to each other, a crank-shaped dust intrusion prohibiting unit (21A) is provided for prohibiting intrusion of dust and dirt from the abutting surfaces of the peripheral wall sections of the upper and lower shells towards the optical disc housed in the main cartridge body unit to protect the optical disc housed in the main cartridge body unit.

Abstract: A cartridge for encasing a disc replaceably, including a cartridge body (2) having a write/read opening (24) formed in the bottom thereof, an inner rotor (4) rotatably received in the cartridge body (2) and having formed therein an opening (44) corresponding to the opening (24), and a pair of shutter members which uncovers the openings (24, 44) when the inner rotor (4) rotates until the openings (24, 44) are aligned with each other.

Abstract: A disc cartridge includes: a disc storage portion; first and second shutters provided on the bottom of the disc storage portion; and a rotational member interlocked with the shutters and having a disc supporting portion to support the disc thereon while the shutters are closed and a notch to be located inside a head opening while the shutters are opened. The shutters include disc holders for holding the disc thereon with the center of the disc offset from that of the disc storage portion such that an outer side surface of the disc contacts with the sidewall of the disc storage portion at a position where the notch is located while the shutters are closed. The inner circumference of a region, where the disc supporting portion contacts with the second side of the disc, defines a circle that has its center offset from the center of the disc storage portion.

Abstract: Disclosed is a disk cartridge capable of preventing the permeation of dust in the disk cartridge. A labyrinth shape portion having a recessed dust deposition portion formed in a gap at a portion between tilt planes for overlap of shutters are vertically overlapped to each other.

Abstract: In a disc cartridge, when a shutter fitting portion disposed at the outside of a case is pressed, a shutter drawing portion is drawn to rotate an arcuate guide wall portion together with a shutter main body. The shutter drawing portion is swingable in the width direction of the arcuate guide wall portion, and thus occurrence of component force for inclining the shutter main body due to the pulling of the shutter drawing portion can be suppressed. Therefore, a first shutter member is smoothly rotated, and an aperture for access to a disc medium is opened. According to the present invention, there is provided a disc cartridge in which a shutter member for opening/closing an aperture for access to a disc medium housed therein can operate smoothly.

Abstract: A disc cartridge includes: a cartridge body including a disc storage portion storing a disc, having first and second sides, therein so that the disc is rotatable there and that the first side is exposed and chucking and head opening formed on the bottom of the storage portion so as to get the disc chucked externally and allow a read/write head to access the second side, respectively; a shutter supported, and movable with respect to the cartridge body, between the second side of the disc and the bottom of the disc storage portion so as to expose or cover the chucking and head openings and defining a hole under a center hole of the disc while the shutter is closed; and a disc holder provided for the shutter and pressing the disc against the shutter and holding it thereon while the chucking and head openings are covered with the shutter.

Abstract: A disk cartridge in which a pair of shutter members can be opened and closed smoothly and reliably, and a dust-proof property and an airtightness of a large opening portion can be increased by reducing a space between a pair of shutter members and a cartridge housing as much as possible. The disk cartridge comprises a cartridge housing in which a disk compartment is formed-between an upper shell and a middle shell by overlapping the upper shell, the middle shell and the lower shell and the middle shell is supported by the upper shell and the lower shell so as to become freely rotatable, an optical disk rotatably stored within the disk compartment and a pair of shutter members attached to the middle shell in such a manner that they can be moved in the plane direction on the same plane. A shutter opening and closing mechanism for opening and closing opening portions by moving the pair of shutter members based rotation of the middle shell.

Abstract: A slidable rotation of the inner shell to the outer shell causes slidable rotation of the shutter members to open or close the opening portion of the outer shell, and the disk cartridge is inserted into an insertion opening of the disk drive apparatus so that the disk-shaped recording medium is mounted on the disk table to be used. An discrimination groove opened at least to an insertion direction side to the insertion opening of the disk drive apparatus for performing discrimination from another type of the disk cartridge is formed on the outer shell.

Abstract: A disc cartridge consisting of an upper shell and a lower shell and an inner rotor rotatably arranged between them for housing an optical disc. The lower shell has a bottom opening that is opened and closed by shutter members, the optical disc is upwardly supported by its central part on a first pair of disc mount members that are formed near the periphery of the internal opening formed on the bottom of the inner rotor and by a second pair of disc mount members formed on the shutter members.

Abstract: A disc cartridge the present invention includes a cartridge body and first and second shutters. The cartridge body includes a disc storage portion, a chucking opening and a head opening. The disc storage portion has a disc window and a bottom and stores a disc, having first and second sides, therein so that the disc is rotatable in the disc storage portion and that the first side of the disc is exposed inside the disc window. The chucking opening is formed on the bottom of the disc storage portion so as to get the disc chucked externally. The head opening is also formed on the bottom of the disc storage portion so as to allow a head, which reads and/or writes a signal from/on the second side of the disc, to access the second side of the disc. The first and second shutters are provided between the second side of the disc and the bottom of the disc storage portion. The first shutter rotates around the center of the chucking opening.

Abstract: Disclosed is a disk cartridge capable of preventing the permeation of dust in the disk cartridge. A labyrinth shape portion having a recessed dust deposition portion formed in a gap at a portion between tilt planes for overlap of shutters are vertically overlapped to each other.

Abstract: A cartridge for encasing a disc replaceably, including a cartridge body (2) having a write/read opening (24) formed in the bottom thereof, an inner rotor (4) rotatably received in the cartridge body (2) and having formed therein an opening (44) corresponding to the opening (24), and a pair of shutter members which uncovers the openings (24, 44) when the inner rotor (4) rotates until the openings (24, 44) are aligned with each other.

Abstract: The present invention is related to a disc cartridge in which an optical disc, an inner shell and shutter members are housed in a main cartridge body unit, formed by abutting and combining upper and lower shells and in which the inner shell is run in rotation to cause the shutter members to open or close an aperture provided in the main cartridge body unit. The inner shell is formed by a resin molding portion comprised of a first molded portion for forming the inner shell and a second molded portion connected to the first molded portion. The second molded portion is provided at a position forming the aperture in the inner shell and is connected to the first molded portion through a flanged thin-walled section. The inner shell is formed by severing the second molded portion and the flanged thin-walled section.