JPS61132555U

JPS61132555U -

Info

Publication number: JPS61132555U
Application number: JP1554685U
Authority: JP
Priority date: 1985-02-06
Filing date: 1985-02-06
Publication date: 1986-08-19
Also published as: JPH0240622Y2

Description

[Brief explanation of the drawing]

第１図は本考案の実施例に係わる磁気デイスク
駆動装置の一部を示す平面図、第２図は第１図の
装置の一部省略正面図、第３図は第１図の―
線で一部を切断して示す側面図、第４図は第１図
の装置の左側面図、第５図は第１図の装置をカー
トリツジ装着状態とした場合の平面図、第６図は
第５図の装置の一部省略正面図、第７図は第５図
の―線の一部を切断した状態の側面図、第８
図は第５図の左側面図、第９図はシヤツタ開放用
回動板部分の斜視図、第１０図はカートリツジと
シヤツタ開放用回動板部分との関係を示す平面図
、第１１図はシヤツタの開放を失敗した状態のカ
ートリツジと回動板部分を示す平面図、第１２図
はカートリツジの底面図である。１……磁気デイスクカートリツジ、２……磁気
デイスク、３……ケース、６，７……開口、８…
…シヤツタ、９，９ａ……凹部、１８……カート
リツジホルダ、２７……スライド体、４３……シ
ヤツタ開放用回動板、４６……バネ、４７……突
部、４８……制限部分。 FIG. 1 is a plan view showing a part of a magnetic disk drive device according to an embodiment of the present invention, FIG. 2 is a partially omitted front view of the device shown in FIG. 1, and FIG.
4 is a left side view of the device shown in FIG. 1, FIG. 5 is a plan view of the device shown in FIG. 1 with a cartridge attached, and FIG. 6 is a side view partially cut away along lines. Fig. 5 is a partially omitted front view of the device, Fig. 7 is a side view partially cut away along the - line in Fig. 5, and Fig. 8 is a partially cutaway side view of the device.
The figure is a left side view of FIG. 5, FIG. 9 is a perspective view of the rotating plate for opening the shutter, FIG. 10 is a plan view showing the relationship between the cartridge and the rotating plate for opening the shutter, and FIG. FIG. 12 is a plan view showing the cartridge and rotating plate portion in a state where the shutter has failed to open, and FIG. 12 is a bottom view of the cartridge. 1... Magnetic disk cartridge, 2... Magnetic disk, 3... Case, 6, 7... Opening, 8...
... Shutter, 9, 9a ... Recessed part, 18 ... Cartridge holder, 27 ... Slide body, 43 ... Shutter opening rotary plate, 46 ... Spring, 47 ... Projection, 48 ... Limiting portion.

Claims

[Claims for Utility Model Registration] A magnetic disk 2 is housed in a case 3, and a main surface of the case 3 has a head insertion opening for bringing the magnetic head into contact with the disk 2, and a hub 2b at the center of the disk. An opening 10 for exposing the head is provided, and a shutter 8 is provided to selectively cover the head insertion opening, and the shutter 8 slides linearly along one side of the case 3. 3 and is formed in a U-shape so as to extend from the front surface to the back surface of the case 3, and is provided with a shutter biasing spring 70 for always biasing the shutter 8 in a closing direction. 1 is used to record or reproduce information signals, and the rotating body 1 engages with the hub 2b of the disk 2.
7 for rotating the disk 2; a magnetic head for recording or reproducing signals by contacting the disk 2 through the head insertion opening; The disk 2 is formed to receive the cartridge 1 inserted from the rotating body 17.
The disc 2 is configured to move in the axial direction of the rotary body 17 in order to guide the disk 2 from a disengaged position in which the disc 2 is kept in a disengaged state to an engaged position in which the disc 2 is engaged with the rotary body 17. Cartridge holder 18
a rotary plate 43 for opening the shutter which is rotatably attached to the cartridge holder 18; a rotary plate biasing spring 46 that applies a biasing force to the rotary plate 43 in the direction of ejecting the cartridge 1; When the cartridge 1 is inserted into the cartridge holder 18, it is pressed by one side 3a of the case 3 against the rotating plate biasing spring 46 and extends in the insertion direction of the cartridge 1 of the shutter 8. In a magnetic disk drive device having a protrusion 47 provided on the rotary plate 43 so as to press the edge 8a against the shutter biasing spring 70, the rotary plate 43 operates the shutter 8 normally. a portion 4 that limits the rotational position of the rotational plate 43 in a manner substantially corresponding to the rotational position of the rotational plate 43 when the rotational plate 43 is opened;
8. A magnetic disk drive device characterized by being provided with a.