JPH0193632U

JPH0193632U -

Info

Publication number: JPH0193632U
Application number: JP19061887U
Authority: JP
Priority date: 1987-12-14
Filing date: 1987-12-14
Publication date: 1989-06-20

Description

[Brief explanation of the drawing]

第１図はこの考案の回転ドラム装置の一部破断
側面図、第２図は第１図―線に沿う平面図、
第３図は第１図部拡大断面図、第４図は他の実
施例によるＦＧ・ＰＧマグネツトの平面図、第５
図はさらに他の実施例によるＦＧ・ＰＧマグネツ
トの平面図、第６図は第５図―線に沿う断面
図、第７図は従来の回転ドラム装置の一部破断側
面図、第８図は第７図―線に沿う平面図であ
る。２１……ドラム、２２……ステータ基板、２３
……軸受、２４……回転軸、２５……駆動コイル
、２６……ヨーク、２７……マグネツト、３１…
…ＦＧ・ＰＧ基板、３２……ＦＧ・ＰＧマグネツ
ト、３３……ＦＧ用外歯ギヤ、３４……ＦＧ用内
歯ギヤ、３５……ＦＧコイル、３６……ＦＧ用ホ
ール素子、３４Ａ……突起、３７……フレキシブ
ル基板、３２Ｘ……異極部。 Fig. 1 is a partially cutaway side view of the rotating drum device of this invention, Fig. 2 is a plan view taken along the line of Fig. 1;
FIG. 3 is an enlarged sectional view of the part in FIG. 1, FIG. 4 is a plan view of an FG/PG magnet according to another embodiment, and FIG.
6 is a sectional view taken along the line of FIG. 5, FIG. 7 is a partially cutaway side view of a conventional rotating drum device, and FIG. 8 is a plan view of an FG/PG magnet according to another embodiment. FIG. 7 - Plan view along the line. 21...Drum, 22...Stator board, 23
... Bearing, 24 ... Rotating shaft, 25 ... Drive coil, 26 ... Yoke, 27 ... Magnet, 31 ...
...FG/PG board, 32...FG/PG magnet, 33...External gear for FG, 34...Internal gear for FG, 35...FG coil, 36...Hall element for FG, 34A...Protrusion , 37...flexible substrate, 32X...different polarity part.

Claims

[Scope of claim for utility model registration] A frequency power generation function in which an FG external gear and an FG internal gear are provided concentrically, and
In a rotating drum device equipped with a phase signal generation function using a PG magnet and a Hall element, the FG/PG magnet is provided concentrically with an external gear for FG, and the external gear for FG and a Hall element provided at a distance from the external gear are provided. A rotating drum device characterized in that a different polarity portion that can be rotated and passed between the FG and PG magnets is provided at a part of the periphery of the FG/PG magnet.