JPS6280264U

JPS6280264U -

Info

Publication number: JPS6280264U
Application number: JP17107285U
Authority: JP
Priority date: 1985-11-06
Filing date: 1985-11-06
Publication date: 1987-05-22

Description

[Brief explanation of the drawing]

第１図乃至第６図は本考案の一実施例に係り、
第１図は外リングの上面図、第２図はその断面図
、第３図は内リングの上面図、第４図はその断面
図、第５図は組み立て時の上面図、第６図はその
断面図である。第７図は従来例を示す図、第８図
はセンターコアの一例を示す図、第９図は第８図
の上面図、第１０図は他の従来例を示す図である
。１０…磁気デイスク、１２…センターコア、１
６，１６…テーパ面、２２…内リング、２８…外
リング、３０…バネ部（弾性橋絡部）、４０…駆
動装置、４２…スピンドル。 1 to 6 relate to an embodiment of the present invention,
Fig. 1 is a top view of the outer ring, Fig. 2 is a sectional view thereof, Fig. 3 is a top view of the inner ring, Fig. 4 is a sectional view thereof, Fig. 5 is a top view when assembled, and Fig. 6 is a top view of the inner ring. FIG. FIG. 7 is a diagram showing a conventional example, FIG. 8 is a diagram showing an example of a center core, FIG. 9 is a top view of FIG. 8, and FIG. 10 is a diagram showing another conventional example. 10...Magnetic disk, 12...Center core, 1
6, 16...Tapered surface, 22...Inner ring, 28...Outer ring, 30...Spring part (elastic bridge part), 40...Drive device, 42...Spindle.

Claims

[Claims for Utility Model Registration] The inner ring and outer ring are ultrasonically bonded to sandwich a flexible magnetic disk, and a center hole is provided into which a spindle of a disk drive device is inserted in order to center the disk. In the center core of the flexible magnetic disk, a pair of tapered surfaces provided on the inner ring and in contact with the circumferential surface of the spindle, and an elastic bridge provided on the outer ring to press the spindle against the pair of tapered surfaces. A center core of a flexible magnetic disk characterized by comprising: and.