JPH0220861U

JPH0220861U -

Info

Publication number: JPH0220861U
Application number: JP9563688U
Authority: JP
Priority date: 1988-07-21
Filing date: 1988-07-21
Publication date: 1990-02-13

Description

[Brief explanation of the drawing]

第１図乃至第４図は本考案の一実施例を示すも
ので、第１図は磁気デイスク駆動装置の全体外観
図、第２図は第１図の側面図、第３図は上側ヘツ
ドユニツトの外観図、第４図は第３図の断面図、
第５図は下側ヘツドユニツトの分解斜視図、第６
図は第５図の変形例を示す磁気ヘツドユニツトの
本体部の構成説明図、第７図は従来技術による磁
気デイスク駆動装置の断面図である。１：磁気ヘツドアセンブリ、２：下側ヘツドユ
ニツト、３：ガイドシヤフト、４：磁気デイスク
、５：キヤリツジ、６：上側ヘツドユニツト、７
：揺動支軸、８：アーム、９：コア、１１ａ，１
１ｂ：アーム取付板部、１２ａ，１２ｂ：軸挿通
孔、１６ａ，１６ｂ：被取付板部、１７ａ，１７
ｂ：軸挿通孔、２０：コイルばね、２１：ストツ
パねじ杆、３０：上側磁気ヘツド、３１：ジンバ
ルばね、３２：本体部、３３：ジンバルばね、３
４，３４′：本体部、３５：ジンバルばね、３６
：磁気ヘツド、３７，３７′：ピボツト体。 1 to 4 show an embodiment of the present invention, in which FIG. 1 is an overall external view of a magnetic disk drive, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a view of the upper head unit. External view, Figure 4 is a sectional view of Figure 3,
Figure 5 is an exploded perspective view of the lower head unit; Figure 6 is an exploded perspective view of the lower head unit;
This drawing is an explanatory diagram of the structure of the main body of a magnetic head unit showing a modification of FIG. 5, and FIG. 7 is a sectional view of a magnetic disk drive device according to the prior art. 1: Magnetic head assembly, 2: Lower head unit, 3: Guide shaft, 4: Magnetic disk, 5: Carriage, 6: Upper head unit, 7
: Swing shaft, 8: Arm, 9: Core, 11a, 1
1b: Arm mounting plate portion, 12a, 12b: Shaft insertion hole, 16a, 16b: Mounted plate portion, 17a, 17
b: Axis insertion hole, 20: Coil spring, 21: Stopper screw rod, 30: Upper magnetic head, 31: Gimbal spring, 32: Main body, 33: Gimbal spring, 3
4, 34': Main body, 35: Gimbal spring, 36
: Magnetic head, 37, 37': Pivot body.

Claims

[Scope of utility model registration request]

A lower head device is attached to a carriage, an arm equipped with an upper head device is connected to the carriage, a magnetic disk for information recording is held between both head devices, and the carriage is moved in the radial direction of the disk. However, in a device that records and reproduces information, the arm supporting the upper head device is connected to the carriage supporting the lower head device via a swing shaft, so that the arm is attached to the carriage. The upper head device is movable in a direction toward and away from the lower head device, and the arm is biased by a biasing means to bias the upper head device toward the lower head device. Further, the lower head device is attached to the carriage via a gimbal spring, and a pivot for restricting movement of the lower head device in the thickness direction of the magnetic disk is provided in contact with a position behind the gimbal spring. A magnetic head assembly characterized by: