JPH01121855U - - Google Patents

Info

Publication number
JPH01121855U
JPH01121855U JP1771288U JP1771288U JPH01121855U JP H01121855 U JPH01121855 U JP H01121855U JP 1771288 U JP1771288 U JP 1771288U JP 1771288 U JP1771288 U JP 1771288U JP H01121855 U JPH01121855 U JP H01121855U
Authority
JP
Japan
Prior art keywords
magnet
attached
cylindrical
partition wall
rotatably supported
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
Application number
JP1771288U
Other languages
Japanese (ja)
Other versions
JPH0734379Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1988017712U priority Critical patent/JPH0734379Y2/en
Publication of JPH01121855U publication Critical patent/JPH01121855U/ja
Application granted granted Critical
Publication of JPH0734379Y2 publication Critical patent/JPH0734379Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Transmission And Conversion Of Sensor Element Output (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の実施例を断面して示す正面図
、第２図は第１図の一部をのこしてＸ―Ｘ線で切
断して示す断面図、第３図は本考案の他の実施例
を断面して示す正面図である。 １，２；ケーシング、５；シヤフト、５ａ，５
ｂ；係合部、５ｃ；ロータ部、１２；駆動マグネ
ツト、１３；隔壁、１７：従動マグネツト、１８
；保持リング、２１；反射板、２２；光ケーブル
。 Fig. 1 is a front view showing an embodiment of the present invention in cross section, Fig. 2 is a sectional view showing a part of Fig. 1 taken along line X--X, and Fig. 3 is a front view showing an embodiment of the present invention. FIG. 3 is a front view showing a section of the embodiment. 1, 2; Casing, 5; Shaft, 5a, 5
b; Engaging portion, 5c; Rotor portion, 12; Drive magnet, 13; Partition wall, 17: Driven magnet, 18
; Retaining ring, 21; Reflector, 22; Optical cable.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ケーシングの内部に、回転駆動源に連結された
シヤフトを、軸受を介して回転自在に支承し、こ
のシヤフトの中央部に、少なくとも外周側を複数
極に着磁した円筒状の駆動マグネツトを嵌着し、
この駆動マグネツトの外周に、非磁性材からなる
円筒状の隔壁を介して、該駆動マグネツトの磁極
面と対向して複数極に着磁し、かつケーシングに
回転自在に支承させた円筒状の従動マグネツトを
同心配置し、この従動マグネツトに反射部と非反
射部とを交互に配列した反射板を取付け、上記隔
壁により、駆動マグネツトと従動マグネツトとを
気密に隔離するとともに、上記反射板に光ケープ
ルの端面を対向させて構成したことを特徴とする
回転検出装置。 A shaft connected to a rotational drive source is rotatably supported inside the casing via a bearing, and a cylindrical drive magnet with at least the outer circumference magnetized with multiple poles is fitted in the center of the shaft. death,
A cylindrical driven member is attached to the outer periphery of the drive magnet, through a cylindrical partition wall made of a non-magnetic material, and is magnetized into multiple poles facing the magnetic pole surface of the drive magnet, and is rotatably supported by the casing. The magnets are arranged concentrically, and a reflecting plate with reflective parts and non-reflective parts arranged alternately is attached to the driven magnet, and the driving magnet and the driven magnet are airtightly separated by the partition wall, and an optical cable is attached to the reflecting plate. A rotation detection device characterized in that the end faces of the two are arranged to face each other.
JP1988017712U 1988-02-12 1988-02-12 Rotation detector Expired - Lifetime JPH0734379Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988017712U JPH0734379Y2 (en) 1988-02-12 1988-02-12 Rotation detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988017712U JPH0734379Y2 (en) 1988-02-12 1988-02-12 Rotation detector

Publications (2)

Publication Number Publication Date
JPH01121855U true JPH01121855U (en) 1989-08-18
JPH0734379Y2 JPH0734379Y2 (en) 1995-08-02

Family

ID=31231739

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988017712U Expired - Lifetime JPH0734379Y2 (en) 1988-02-12 1988-02-12 Rotation detector

Country Status (1)

Country Link
JP (1) JPH0734379Y2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57155416U (en) * 1981-03-25 1982-09-30
JPS582751A (en) * 1981-06-30 1983-01-08 Showa Electric Wire & Cable Co Ltd Detecting device for rotating body
JPS58143484U (en) * 1982-03-17 1983-09-27 三洋電機株式会社 cup motor
JPS6119768U (en) * 1984-07-11 1986-02-05 カルソニックカンセイ株式会社 vehicle speed sensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57155416U (en) * 1981-03-25 1982-09-30
JPS582751A (en) * 1981-06-30 1983-01-08 Showa Electric Wire & Cable Co Ltd Detecting device for rotating body
JPS58143484U (en) * 1982-03-17 1983-09-27 三洋電機株式会社 cup motor
JPS6119768U (en) * 1984-07-11 1986-02-05 カルソニックカンセイ株式会社 vehicle speed sensor

Also Published As

Publication number Publication date
JPH0734379Y2 (en) 1995-08-02

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