JPH0164159U

JPH0164159U -

Info

Publication number: JPH0164159U
Application number: JP1987159249U
Authority: JP
Priority date: 1987-10-20
Filing date: 1987-10-20
Publication date: 1989-04-25

Description

[Brief explanation of the drawing]

第１図は本考案の実施例の一部切欠斜面図、第
２図はデイスクの平面図、第３図は第２図線
の拡大縦断面図、第４図はハブの分離状態を示す
切断側面図、第５図はその斜面図、第６図は第２
図線の拡大縦断面図、第７図及び第８図は、
それぞれ本考案の他の実施例の分離状態の縦断面
図、第９図は従来例のデイスクの側面図を示す。１…駆動軸挿入孔、２…デイスクハブ、２_１…
当接面、３…デイスク、４…カートリツジケース
、５…中心孔、６…凸部、６_１…融着部、１０…
回り止め機構、１１…凹溝。 Fig. 1 is a partially cutaway perspective view of an embodiment of the present invention, Fig. 2 is a plan view of the disk, Fig. 3 is an enlarged vertical cross-sectional view along the line of Fig. 2, and Fig. 4 is a cutaway showing the separated state of the hub. The side view, Figure 5 is the slope view, and Figure 6 is the second view.
The enlarged longitudinal cross-sectional view of the drawing line, FIGS. 7 and 8,
FIG. 9 shows a vertical sectional view of another embodiment of the present invention in a separated state, and FIG. 9 shows a side view of a conventional disk. 1... Drive shaft insertion hole, 2... Disc hub, 2 ₁ ...
Contact surface, 3... Disc, 4... Cartridge case, 5... Center hole, 6... Convex part, 6 ₁ ... Fusion part, 10...
Anti-rotation mechanism, 11...concave groove.

Claims

[Claims for Utility Model Registration] (1) In a disk cartridge in which a disk 3 equipped with a disk hub 2 having a drive shaft insertion hole 1 is rotatably stored in a cartridge case 4, the disk hub 2 is connected to the disk. 3 is a split disk hub that is held from both the upper and lower surfaces of the disk 3, and at least one of the disk hubs has a convex portion 6 that fits into the center hole 5 of the disk 3 protruding from the opposing surface thereof. 2. A disk hub in a disk cartridge, characterized in that the convex portion 6 and its opposing surface are connected via a rotation prevention mechanism 10 to the opposing joint surface between the clamping surface of the disk 2 and the disk 3. (2) The disk hub according to claim 1, wherein the rotation prevention mechanism 10 is an elastic ring member made of rubber or synthetic resin, and is interposed between joint surfaces. (3) A utility model registration claim in which the detent mechanism 10 is a ring-shaped O-ring fitted into a groove 11 formed on the joint surface of the disc 3 or disc hub 2. Disk hub as described in scope 2. (4) The disc hub according to claim 1, wherein the detent mechanism 10 is constituted by a fused portion 12 and is formed on the disc hub or a joint surface of the disc. (5) The disk according to claim 1, wherein the rotation prevention mechanism 10 has a fitting structure of a concave portion and a convex portion formed corresponding to the joint surface of the disk hub 2 or the disk 3. hub.