摘要:
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.
摘要:
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. The center of rotation of the second shutter is located outside of the chucking opening. And the first and second shutters expose or cover the head opening cooperatively.
摘要:
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.
摘要:
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.
摘要:
A disc cartridge comprises a rotary member (25) that is held on first and second shutters in a disc storage unit in which a disc is stored with a first surface externally exposed from a disc opening and that is engaged with the first and second shutters so that the first and second shutters are opened and closed as the disc rotates within the disk storage unit, wherein the rotary member has a disc receiving portion comprising a contact area (25n) that comes into contact with the periphery of a second surface of the disc and receives the disc when the first and second shutters are closed state and a groove (25p) provided outside the contact area.
摘要:
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.
摘要:
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.
摘要:
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.