Matsushita Electric Industrial Co., Ltd.

Sony Corporation

Panasonic Corporation

Hironori Okazawa

Teruyuki Takizawa

Kuniko Nakata

Yoshito Saji

Yoshito Sazi

Akira Kurozuka

Yoshikazu Goto

Hiroyuki Takeuchi

Eiichi Hanakawa

Naoki Inoue

Kozo Ezawa

Manabu Obata

Mitsunori Matsumura

Masanao Wakikawa

Kazuo Teramae

Terumi Tatsumi

A disc cartridge comprises a rotary member () 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 () 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 () provided outside the contact area.

Disc cartridge for storage of a disc

The disc cartridge of the present invention includes a cartridge body, shutters, disc holding portions and a stopper member. The cartridge body has a disc windowand a bottomand stores a discin a rotatable state with one side exposed through the disc window. A bottom windowis opened through the bottom so as to get the disc chucked and to allow a head to access it. The shuttersopen or shut the bottom window. A rotational memberis supported by the cartridge bodyto be rotatable and interlocked with the shuttersso as to open and close the shuttersby rotating. The disc holding portionsinterlock with the shuttersopening or closing to hold or release the disc. The stopper memberis supported by the cartridge body to take a position protruding into the disc windowor a non-protruding position. The disc holding portionsinterlock with the stopper member, and release the discwhen the stopper membertakes the position not protruding into the disc window

Disc cartridge

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.

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.

Methods and systems for scaling and rotating an image in a single operation

A disc cartridge includes a cartridge body, a first shutter, a second shutter, and a rotational member. 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 disc exposes the first side inside the disc window. The first and second shutters are provided on the bottom of the disc storage portion to expose or cover the head opening. The rotational member is provided over the first and second shutters inside the disc storage portion and is engaged with the first and second shutters in such a manner as to open or close the first and second shutters when rotates inside the disc storage portion.

Disc cartridge having deeper concave portion continuous with shutter opener/closer groove

A disc cartridge includes a cartridge body having 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. 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. A shutter is supported to, and movable with respect to, the cartridge body so as to expose or cover at least the head opening.

Disc cartridge having a shutter that includes a convex portion protruding into a center hole of the disc

A disc cartridge according to the present invention includes a cartridge body and a shutter. 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. The shutter is supported to, and movable with respect to, the cartridge body so as to expose or cover at least the head opening.

Disc cartridge having a disc window for viewing a disc

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.

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.

A disc cartridge according to the present invention includes a cartridge body and a shutter. The cartridge body includes a disc storage portion, a chucking opening and a head opening. The disc storage portion stores a disc, having first and second sides, therein so that the disc is rotatable in the disc storage portion. The shutter is supported to, and movable with respect to, the cartridge body between the disc and the bottom of the disc storage portion so as to expose or cover the chucking opening and the head opening. The shutter also includes a convex portion that is provided for the shutter so as to protrude into a center hole of the disc while the shutter covers the chucking opening and the head opening. When the shutter is going to be opened, the convex portion lifts the disc in a thickness direction of the cartridge while contacting with the second side of the disc.

Disk cartridge

A disc cartridge according to the present invention includes a cartridge body, a shutter and a disc holding portion. The cartridge body includes a disc storage portion, a chucking opening and a head opening. The disc storage portion stores a disc, having first and second sides, therein so that the disc is rotatable in the disc storage portion. The shutter is supported to, and movable with respect to, the cartridge body between the disc and the bottom of the disc storage portion so as to expose or cover the chucking opening and the head opening. The disc holding portion is provided at a portion of the shutter for fixing the disc onto the shutter or the cartridge body synchronously with a movement of the shutter, by pressing the disc toward the bottom of the disc storage portion when the shutter covers the chucking opening and the head opening.

Growing community of inventors

Osaka, Japan

Hironori Okazawa