JPS6255281U

JPS6255281U -

Info

Publication number: JPS6255281U
Application number: JP14729285U
Authority: JP
Priority date: 1985-09-25
Filing date: 1985-09-25
Publication date: 1987-04-06
Anticipated expiration: 2000-09-25
Also published as: JPH0621091Y2

Description

【図面の簡単な説明】第１図はこの考案の一実施例を示す分解斜視図
である。第２図はこの実施例の正面図である。第
３図はこの実施例の要部を示す平面図である。第
４図はこの実施例の要部を示す底面図である。第
５図および第６図はシヤツタとばねとの係合状態
を示す図解図であり、第５図は部分平面図、第６
図は部分断面図である。第７図はストツパとして
の長孔を説明するための要部図解図である。第８
図および第９図はデイスク駆動装置に記録再生用
デイスクカセツトが挿入されるときのシヤツタの
変位について説明するための図解図である。第１
０図はこの考案の他の実施例を示す要部平面図で
ある。第１１図および第１２図はシヤツタの他の
例を示す平面図解図である。図において、１０は記録再生用デイスクカセツ
ト、１２は磁気デイスク、１６はカセツトケース
、２８，３０はヘツド作用孔、３４，３８はばね
、５０はシヤツタ、５８ａ，６０ａは閉塞部、５
８ｂ，５８ｃ，６０ｂ，６０ｃは開口、１０４ａ
，１０４ｂ，１０６ａ，１０６ｂは切欠を示す。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing an embodiment of this invention. FIG. 2 is a front view of this embodiment. FIG. 3 is a plan view showing the main parts of this embodiment. FIG. 4 is a bottom view showing the main parts of this embodiment. 5 and 6 are illustrative views showing the state of engagement between the shutter and the spring; FIG. 5 is a partial plan view, and FIG.
The figure is a partial sectional view. FIG. 7 is an illustrative view of the main part for explaining the elongated hole as a stopper. 8th
9 and 9 are illustrative diagrams for explaining the displacement of the shutter when a recording/reproducing disk cassette is inserted into the disk drive device. 1st
FIG. 0 is a plan view of main parts showing another embodiment of this invention. FIGS. 11 and 12 are plan views showing other examples of the shutter. In the figure, 10 is a disk cassette for recording and reproducing, 12 is a magnetic disk, 16 is a cassette case, 28 and 30 are head operation holes, 34 and 38 are springs, 50 is a shutter, 58a and 60a are closing parts, and 5
8b, 58c, 60b, 60c are openings, 104a
, 104b, 106a, and 106b indicate notches.

Claims

[Scope of Claim for Utility Model Registration] 1. A cassette case in which a recording/reproducing disk is rotatably housed, head operation holes formed at corresponding positions on both sides of the cassette case, and a bent portion thereof forming the cassette case. a shutter member that is fitted into an edge of the head and is movable in both directions along the edge, and covers the head operation hole at a central position thereof; and a shutter member that is biased from both sides thereof toward the central position. A disk cassette equipped with a spring for 2. A utility model registration claim, wherein the spring includes two springs provided on both sides of the shutter member, and each spring applies a spring force to the shutter member from both sides in mutually opposing directions. The disk cassette described in item 1. 3. The spring includes one spring whose both sides are locked to both ends of the shutter member, and both sides of the spring apply spring force in opposite directions to the shutter member, according to the utility model registration request. Range 1
Disk cassette as described in section. 4. A utility model according to any one of claims 1 to 3, which is provided in the case and includes a stopper for preventing movement of the shutter member in the direction in which the spring force of the spring acts. disk cassette. 5. The disk cassette according to claim 4, wherein the stopper includes a long hole formed in the case and extending in the direction of movement of the shutter member. 6. The shutter member has two openings spaced apart so as to correspond with the head operation hole in each direction of movement when the shutter member is moved in the two directions, and the head operation hole is located in the shutter member. The disk cassette according to any one of claims 1 to 5, which is covered with a shutter member between the two openings at the central position. 7. The disk cassette according to claim 6, wherein the opening includes an opening. 8. The disk cassette according to claim 6, wherein the opening includes a notch.