Claims
- 1. A disc cartridge, comprising:
- a casing having a space defined therein, said casing including an upper inner surface and a lower inner surface, said upper and lower inner surfaces each having a recess provided therein;
- a disc rotatably housed in said space of said casing; and
- disc holding means engaged with at least a part of said disc to support said disc thereon, said disc holding means being arranged on an inner surface of said casing;
- said disc holding means arranged to support a non-recording surface section of said disc to prevent a recording surface section of said disc from being contacted by said inner surface of said casing;
- said disc holding means comprising substantially flat steps fixedly formed on upper and lower surface sections of said inner surface of said casing in a manner such that at least a part of each of said steps inwardly projects from said inner surface of said casing, said steps being arranged to positionally correspond to peripheral sections of said disc;
- said disc holding means additionally comprising a periphery of said inner surface of said casing formed substantially in the shape of a V to form a V-shaped periphery with said space tapering thereat and with said steps formed adjacent said V-shaped periphery; and
- additionally comprising, in combination, at least one disc receiver movably supported on a vertically arranged pivot pin so as to be rotatable about said pivot pin and movable along said pivot pin, said pivot pin mounted upon said casing in said space, said disc receiver positionally corresponding to the recesses in said upper and lower inner surfaces of said casing,
- said at least one disc receiver comprising a substantially U-shaped end defining a longitudinally arranged recess which receives a periphery of the disc therein when the cartridge is not in use, and with at least a part of said disc holding means arranged with respect to said at least one disc receiver such that when the cartridge is not in use, said at least one disc receiver pivotally urges the disc into said V-shaped periphery of said holding means, said recesses in said upper and lower inner surfaces of said casing ensuring smooth unimpeded movement of said at least one disc receiver;
- an elastic member arranged on an inner surface of said U-shaped end of said at least one disc receiver for contacting said periphery of said disc;
- wherein said disc holding means maintain the disc within said space, so that the disc may be inserted in said recess of said at least one disc receiver during non-use; and
- whereby positioning of the disc within said casing is facilitated.
- 2. A disc cartridge as defined in claim 1, wherein said disc holding means has at least a part inwardly projected from said inner surface of said casing.
- 3. A disc cartridge as defined in claim 1, wherein said steps are arranged to positionally correspond to a peripheral section of said disc.
- 4. A disc cartridge as defined in claim 1, wherein said steps are arranged in a continuous ring.
- 5. A disc cartridge as defined in claim 1, wherein said steps are arranged in an intermittent ring.
Priority Claims (2)
Number |
Date |
Country |
Kind |
60-194551 |
Dec 1985 |
JPX |
|
60-194558 |
Dec 1985 |
JPX |
|
Parent Case Info
This is a continuation of application Ser. No. 07/547,475, filed Jul. 2, 1990, now abandoned, which is a continuation of application Ser. No. 07/329,272, filed Mar. 27, 1990, now abandoned, which is a continuation of application Ser. No. 06/942,396, filed Dec. 16, 1986, now U.S. Pat. No. 4,863,031.
US Referenced Citations (9)
Continuations (3)
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Number |
Date |
Country |
Parent |
547475 |
Jul 1990 |
|
Parent |
329272 |
Mar 1990 |
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Parent |
942396 |
Dec 1986 |
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