Disc cartridge
AssigneeTDK Corporation
InventorsMasaru Ikebe, Haruo Shiba, Yukio Miyazaki
Life of this patent
Estimating the term…
Abstract
Elastic lifters arranged on an inner surface of a casing of a disc cartridge to act pressing force on a disc each are formed integral with the casing and into a plate-like shape in such a manner that a proximal end thereof is mounted on the casing and the a end thereof is rendered free. Such construction permits the pressing force to be kept constant for a long period of time and effectively prevents damage to the disc-like medium, to thereby substantially improve durability and reliability of the disc cartridge while significantly decreasing the number of parts, facilitating assembling of the disc cartridge and attains a decrease in manufacturing cost.
Claims6
A disc cartridge comprising:
- a casing made of a synthetic resin material;
- a disc medium rotatably arranged in said casing;
- and
- a lifter means arranged on an inner surface of said casing so as to press said disc medium;
- said lifter means being formed integrally with said casing and into a plate-like shape in such a manner that a proximal end thereof is connected to said casing and a distal end thereof is rendered free, said proximal end being formed with an adjacent V-shaped groove on at least one side of the lifter means.
A disc cartridge housing for rotatably supporting a disc medium comprising:
- a casing made of a synthetic resin material and configured to rotatably support the disc medium;
- and
- a biasing means, integrally formed with the casing, for pressing the disc medium when installed in the casing, the biasing member including a lifter member integrally connected to the casing at a proximal end and having a distal end cantilevered from the casing, said proximal end being formed with an adjacent V-shaped groove on at least one side of the lifter member.
Dependencies are inferred from the claim text.