JPS62170610U

JPS62170610U -

Info

Publication number: JPS62170610U
Application number: JP5818086U
Authority: JP
Priority date: 1986-04-17
Filing date: 1986-04-17
Publication date: 1987-10-29

Description

[Brief explanation of the drawing]

第１図は本考案の第一実施例の外観図で、第１
図ａは平面図、第１図ｂは側面図、第１図ｃは第
１図ｂの破線Ａ部の拡大図。第２図は本考案はの
第二実施例の外観図で、第２図ａは平面図、第２
図ｂは側面図。第３図は第一従来例の外観図、第
３図ａは平面図、第３図ｂは側面図。第４図は第
二従来例の外観図、第４図ａは平面図、第４図ｂ
は側面図。第５図は回転磁石と磁気抵抗素子を用
いたロータリーエンコーダの要部斜視図。１０１，２０１，３０１，４０１，５０１…円
板体、１０２，４０２，５０２…円板体の端面部
、１０３，１０４，１０５…円板素子、１１０…
中心軸、２０２，２０３，３０２…磁気記憶媒体
、５０３…磁気抵抗素子、５０４…空隙。 Figure 1 is an external view of the first embodiment of the present invention.
Figure a is a plan view, Figure 1b is a side view, and Figure 1c is an enlarged view of a section A in broken line in Figure 1b. Fig. 2 is an external view of the second embodiment of the present invention, Fig. 2a is a plan view, and Fig. 2a is a plan view.
Figure b is a side view. FIG. 3 is an external view of the first conventional example, FIG. 3a is a plan view, and FIG. 3b is a side view. Figure 4 is an external view of the second conventional example, Figure 4a is a plan view, Figure 4b
is a side view. FIG. 5 is a perspective view of the main parts of a rotary encoder using a rotating magnet and a magnetoresistive element. 101,201,301,401,501...Disc body, 102,402,502...End face portion of disc body, 103,104,105...Disc element, 110...
Central axis, 202, 203, 302... Magnetic storage medium, 503... Magnetoresistive element, 504... Air gap.

Claims

[Scope of Claim for Utility Model Registration] In a rotating magnet in which a large number of magnetic poles are arranged at equal intervals along the circumferential direction on the peripheral end face of a disc body, a plurality of n almost identical disc elements rotate around an axis. A rotating magnet characterized by a structure in which the magnetic poles are stacked one on top of the other, with the magnetic poles slightly shifted in order.