JPS63135510U - - Google Patents
Info
- Publication number
- JPS63135510U JPS63135510U JP2486787U JP2486787U JPS63135510U JP S63135510 U JPS63135510 U JP S63135510U JP 2486787 U JP2486787 U JP 2486787U JP 2486787 U JP2486787 U JP 2486787U JP S63135510 U JPS63135510 U JP S63135510U
- Authority
- JP
- Japan
- Prior art keywords
- disk
- drum
- rotating shaft
- rotary head
- head drum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Description
第１図は本考案の一実施例であり、第１図ａ，
ｂは夫々、回転ヘツドドラムに芯出し治具を用い
た状態の平面図及び断面図である。第２図は従来
例であり、第２図ａは回転ヘツドドラムの上面図
、第２図ｂは断面図である。
１……上ドラム、１ａ……回転軸貫通孔、１ｂ
……薄肉円筒部、３……デイスク、４……下ドラ
ム、５……回転軸、６……軸受、８……回転トラ
ンス、１０……芯出し治具。
Figure 1 shows an embodiment of the present invention, and Figure 1a,
FIG. 1b is a plan view and a cross-sectional view, respectively, of a rotary head drum in which a centering jig is used. FIG. 2 shows a conventional example; FIG. 2a is a top view of a rotary head drum, and FIG. 2b is a sectional view. 1... Upper drum, 1a... Rotating shaft through hole, 1b
... Thin cylindrical portion, 3 ... Disc, 4 ... Lower drum, 5 ... Rotating shaft, 6 ... Bearing, 8 ... Rotating transformer, 10 ... Centering jig.
Claims (1)
転ヘツドドラムの回転系の基準となる回転軸及び
回転軸に固定されるデイスク及びデイスクに取り
付けられて前記回転軸及びデイスクと共に回転す
る上ドラムとを備えた磁気記録再生装置用回転ヘ
ツドドラムにおいて、上ドラムの芯出しに用いる
上ドラム中心の孔のデイスクに当接する面と反対
の側に、その内径が上ドラムの芯出しの基準とな
る回転軸或いはデイスク凸部の外径よりやや大き
い薄肉内筒部を設けた事を特徴とする磁気記録再
生装置用回転ヘツドドラム。 A lower drum equipped with a bearing, a rotating shaft that is inserted into the bearing and serves as a reference for the rotation system of the rotating head drum, a disk that is fixed to the rotating shaft, and an upper drum that is attached to the disk and rotates together with the rotating shaft and the disk. In a rotary head drum for a magnetic recording/reproducing device equipped with the above-mentioned rotary head drum, a rotary shaft or a shaft whose inner diameter serves as a reference for centering the upper drum is provided on the side opposite to the surface that contacts the disk of the hole in the center of the upper drum used for centering the upper drum. A rotary head drum for a magnetic recording/reproducing device, characterized by having a thin inner cylindrical portion slightly larger than the outer diameter of a disk convex portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2486787U JPH0621044Y2 (en) | 1987-02-20 | 1987-02-20 | Rotating head drum for magnetic recording / reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2486787U JPH0621044Y2 (en) | 1987-02-20 | 1987-02-20 | Rotating head drum for magnetic recording / reproducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63135510U true JPS63135510U (en) | 1988-09-06 |
| JPH0621044Y2 JPH0621044Y2 (en) | 1994-06-01 |
Family
ID=30824484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2486787U Expired - Lifetime JPH0621044Y2 (en) | 1987-02-20 | 1987-02-20 | Rotating head drum for magnetic recording / reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0621044Y2 (en) |
-
1987
- 1987-02-20 JP JP2486787U patent/JPH0621044Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0621044Y2 (en) | 1994-06-01 |
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