JPS6368176U

JPS6368176U -

Info

Publication number: JPS6368176U
Application number: JP16191086U
Authority: JP
Priority date: 1986-10-22
Filing date: 1986-10-22
Publication date: 1988-05-09

Description

[Brief explanation of drawings]

第１図乃至第７図は本考案デイスクカセツトを
磁気デイスクカセツトに適用した実施例の一例を
示すものであり、第１図は斜視図、第２図は第１
図の―線に沿う拡大断面図、第３図はカセツ
トケースの下ハーフの平面図、第４図は分解斜視
図、第５図は磁気デイスクカセツトのローデイン
グが完了される直前の状態におけるデイスク駆動
機構と磁気デイスクカセツトを示す拡大縦断面図
、第６図は磁気デイスクカセツトのローデイング
が完了した状態におけるデイスク駆動機構と磁気
デイスクカセツトを示す拡大縦断面図、第７図は
位置決めピンによるデイスク押え部材の押圧動作
を説明するための要部拡大縦断面図、第８図及び
第９図はデイスク押え部材を備えた磁気デイスク
カセツトの一例を示すものであり、第８図は磁気
デイスクがスピンドルに装着される直前の状態に
おける中央縦断面図、第９図は磁気デイスクの回
転が行なわれる状態における中央縦断面図である
。符号の説明、１……デイスクカセツト、２……
カセツトケース、７……開口部、１６ａ……位置
決め孔、２８……記録媒体デイスク、３３……デ
イスク押え部材、３４ａ……押え部、３８……被
押上部、４１……カセツト装着部、４４……位置
決めピン、５７……スピンドル。 1 to 7 show an example of an embodiment in which the disk cassette of the present invention is applied to a magnetic disk cassette. FIG. 1 is a perspective view, and FIG.
Figure 3 is a plan view of the lower half of the cassette case, Figure 4 is an exploded perspective view, and Figure 5 is a disk drive in the state immediately before loading of the magnetic disk cassette is completed. FIG. 6 is an enlarged longitudinal sectional view showing the mechanism and the magnetic disk cassette, FIG. 6 is an enlarged longitudinal sectional view showing the disk drive mechanism and the magnetic disk cassette in a state where loading of the magnetic disk cassette is completed, and FIG. 7 is an enlarged longitudinal sectional view showing the disk holding member using the positioning pin. 8 and 9 are enlarged vertical cross-sectional views of main parts for explaining the pressing operation of the magnetic disk cassette, and FIG. 8 shows an example of a magnetic disk cassette equipped with a disk holding member. FIG. 9 is a central longitudinal cross-sectional view of the magnetic disk in a state immediately before it is rotated. Explanation of symbols, 1... Disc cassette, 2...
Cassette case, 7... Opening, 16a... Positioning hole, 28... Recording medium disk, 33... Disk holding member, 34a... Pressing part, 38... Pressed upper part, 41... Cassette mounting part, 44 ...Positioning pin, 57...Spindle.

Claims

[Claims for Utility Model Registration] A positioning hole in which a recording medium disk is housed, an opening for inserting a spindle is formed at a position facing the center of the recording medium disk, and a positioning pin is inserted near the periphery. The cassette case has a presser part facing the center of the recording medium disk from the side opposite to the opening, and a pressed part located opposite the positioning hole. A disk holding member supported movably in the thickness direction of the cassette case is provided, and when the cassette case is not installed in the cassette mounting section of the recording/reproducing apparatus, the recording medium disk is pressed toward the opening side by the disk holding member. When the cassette case is installed in the cassette mounting section, the pressed upper part is pressed by the positioning pin inserted into the positioning hole, and the disk holding member is pushed up and the recording medium is held by the disk holding member. A disk cassette characterized in that pressure on the disk is released.