JPS61140474U

JPS61140474U -

Info

Publication number: JPS61140474U
Application number: JP2360085U
Authority: JP
Priority date: 1985-02-22
Filing date: 1985-02-22
Publication date: 1986-08-30

Description

[Brief explanation of drawings]

第１図乃至第１４図は本考案の一実施例を示し
、第１図は磁気記録・再生装置の外観を示す斜視
図、第２図は断面図、第３図はカバーを外した状
態の平面図、第４図は内部の構成を示す斜視図、
第５図は駆動部を示す一部断面斜視図、第６図は
駆動部を示す分解斜視図、第７図はスウイングア
ーム部を示す要部の平面図、第８図は板ばねとス
チールベルトとの関係を示す説明用斜視図、第９
図は磁気デイスクを説明する平面図、第１０図は
磁気記録・再生装置の底面図、第１１図はステツ
ピングモータ部分を示す側面図、第１２図ａはセ
ンサ部の断面図、第１２図ｂはセンサ部の電気回
路図、第１３図は電気回路基板の一部を示す断面
図、第１４図は電気回路基板と電気部品との関係
を示す断面図、第１５図は従来のロツク方式を示
す説明図である。２３，２４……磁気デイスク、４１……スウイ
ングアーム、４６……ステツピングモータ、４７
……回転軸、４８……プーリ、４９……スチール
ベルト、６０……磁気ヘツド、９０……センサー
アーム、９１……係合部、９３……係止部、９６
……センサ部。 Figures 1 to 14 show an embodiment of the present invention, with Figure 1 being a perspective view showing the external appearance of the magnetic recording/reproducing device, Figure 2 being a sectional view, and Figure 3 showing the magnetic recording/reproducing device with the cover removed. A plan view, FIG. 4 is a perspective view showing the internal configuration,
Fig. 5 is a partially sectional perspective view showing the drive unit, Fig. 6 is an exploded perspective view showing the drive unit, Fig. 7 is a plan view of the main parts showing the swing arm, and Fig. 8 is the leaf spring and steel belt. 9th explanatory perspective view showing the relationship between
10 is a bottom view of the magnetic recording/reproducing device; FIG. 11 is a side view of the stepping motor; FIG. 12a is a sectional view of the sensor section; FIG. b is an electric circuit diagram of the sensor section, Fig. 13 is a cross-sectional view showing a part of the electric circuit board, Fig. 14 is a cross-sectional view showing the relationship between the electric circuit board and electric components, and Fig. 15 is a conventional locking method. FIG. 23, 24...Magnetic disk, 41...Swing arm, 46...Stepping motor, 47
... Rotating shaft, 48 ... Pulley, 49 ... Steel belt, 60 ... Magnetic head, 90 ... Sensor arm, 91 ... Engagement part, 93 ... Locking part, 96
...Sensor part.

Claims

[Scope of utility model registration request]

A steel belt is provided along one side of the swing arm provided with the magnetic head, and both ends of this scale belt are fixed to the swing arm,
Further, in a magnetic recording/playback device that records and plays data using a magnetic head by winding the intermediate portion of the steel belt around a pulley driven by a motor, the swing arm is swingably driven, and the magnetic head performs recording and playback. One end of a sensor arm that rotates together with the swing arm is provided at the end of the shaft opposite to the pulley attachment side, and an engaging portion is provided at the other end of the sensor arm, and the magnetic head is positioned at the zero track portion of the magnetic disk. A sensor portion for detecting the presence of the engaging portion is arranged at a position on the sensor arm corresponding to
A magnetic recording/reproducing device characterized in that a locking portion that can be engaged with the engaging portion is provided opposite to the engaging portion.