JPS6331323U

JPS6331323U -

Info

Publication number: JPS6331323U
Application number: JP12532986U
Authority: JP
Priority date: 1986-08-18
Filing date: 1986-08-18
Publication date: 1988-02-29
Also published as: JPH0416894Y2

Description

[Brief explanation of drawings]

第１図は本考案の一実施例に係る磁気式ロータ
リエンコーダの断面図、第２図はその磁気式ロー
タリエンコーダに備えられる保持部材と磁気セン
サの斜視図、第３図はその保持部材を一部破断し
て示す側面図、第４図はその保持部材の展開図、
第５図ａ、第５図ｂは本考案の他の実施例に係る
保持部材の斜視図、第６図は本考案が適用される
磁気式ロータリエンコーダの従来例を示す断面図
、第７図はその磁気式ロータリエンコーダに備え
られるデイスクと保持部材の関係を示す底面図、
第８図および第９図は従来例の問題点を説明する
ための側面図および正面図である。１…デイスク（回転体）、１ａ…デイスク面、
２…回転軸、３…磁化パターン、４…磁気センサ
、６…ケース、６ｃ…基準平面部、７…ネジ、８
…保持部材、８ａ…連結部、８ｂ…固着片、８ｃ
…脚片、８ｄ…取付脚部、９…透孔、１０…セン
サ基準面（破断面）、１１…取付基準面（破断面
）、１２…取付孔、１３…接着剤、１４…軸受。 FIG. 1 is a sectional view of a magnetic rotary encoder according to an embodiment of the present invention, FIG. 2 is a perspective view of a holding member and a magnetic sensor provided in the magnetic rotary encoder, and FIG. 3 is a perspective view of the holding member. A partially broken side view, FIG. 4 is a developed view of the holding member,
5a and 5b are perspective views of a holding member according to another embodiment of the present invention, FIG. 6 is a sectional view showing a conventional example of a magnetic rotary encoder to which the present invention is applied, and FIG. 7 is a bottom view showing the relationship between the disk and the holding member provided in the magnetic rotary encoder,
FIG. 8 and FIG. 9 are a side view and a front view for explaining the problems of the conventional example. 1... Disk (rotating body), 1a... Disk surface,
2... Rotating shaft, 3... Magnetization pattern, 4... Magnetic sensor, 6... Case, 6c... Reference plane part, 7... Screw, 8
...Holding member, 8a...Connection part, 8b...Fixing piece, 8c
...Leg piece, 8d...Mounting leg portion, 9...Through hole, 10...Sensor reference surface (fractured surface), 11...Mounting reference surface (fractured surface), 12...Mounting hole, 13...Adhesive, 14...Bearing.

Claims

[Scope of utility model registration request]

a rotatable rotating body having a magnetization pattern arranged in a circumferential direction; a holding member mounted on a predetermined reference plane portion on the outside of the rotating body; A magnetic rotary encoder is provided with a magnetic sensor facing the rotor, and detects a change in the position of a magnetization pattern due to the rotational movement of the rotating body based on a change in the output of an electric signal from the magnetic sensor, wherein the holding member is made of a metal plate. A pair of legs facing each other at a predetermined distance from the member and having fractured surfaces parallel to each other at both ends, and extending between these legs in a step-like manner with respect to the plane containing one of the fractured surfaces. A bent fixing piece and a mounting leg formed near the other fracture surface of both leg pieces and bent at a position away from the fracture surface are provided, and the magnetic sensor is placed in contact with the fracture surface on one side. The magnetic rotary rotor is characterized in that the holding member is bonded to the fixing piece while in contact with the fixing piece, and the mounting leg is screwed while the other side of the holding member is in contact with the reference flat surface. encoder.