JPS6029213U

JPS6029213U - Hollow shaft rotary encoder

Info

Publication number: JPS6029213U
Application number: JP12093383U
Authority: JP
Inventors: 渡辺　重行
Original assignee: 株式会社ニコン
Priority date: 1983-08-03
Filing date: 1983-08-03
Publication date: 1985-02-27

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の中空軸ロータリーエンコーダの断面図、
第２図は本考案の第１実施例を示す断面図、第３図は第
２図のＡ−Ａ断面図、第４図は本考案の第２実施例を示
す断面図、第５図は第４図のＢ−Ｂ断面図、第６図は第
４図のＣ−Ｃ断面図である。主要部分の符号の説明　１１・・・・・・回転主軸、１
２・・・・・・測角円板、１３，５３・・・・・・中空
回転軸、１４・・・・・・インデックス０スケール、１
５・・・・・・角度検出装置（角度検出手段）、１６，
５６・・・・・・エンコーダ基板、１７．５７・・・・
・・ブラケット部材、（Ｌ８Ａ、１８Ｂ・・・・・・ボ
ールベアリング、１９・・・・・・押え環）　（軸受手
段）、２０，５８・・・・・・カバ一部材、２１，５９
・・・・・・エンコーダ本体、２２，６１．６５・・・
・・・板ばね（ばね手段）、（２３・曲・取付は円板、
２６・・・・・・固定部分）　（固定部）。Figure 1 is a cross-sectional view of a conventional hollow shaft rotary encoder.
Fig. 2 is a sectional view showing the first embodiment of the present invention, Fig. 3 is a sectional view taken along line A-A in Fig. 2, Fig. 4 is a sectional view showing the second embodiment of the invention, and Fig. 5 is a sectional view showing the second embodiment of the invention. FIG. 4 is a sectional view taken along line BB, and FIG. 6 is a sectional view taken along line CC in FIG. Explanation of symbols of main parts 11...Rotating main shaft, 1
2... Angle measurement disk, 13, 53... Hollow rotating shaft, 14... Index 0 scale, 1
5...Angle detection device (angle detection means), 16,
56...Encoder board, 17.57...
... Bracket member, (L8A, 18B ... Ball bearing, 19 ... Holding ring) (Bearing means), 20, 58 ... Cover member, 21, 59
...Encoder body, 22, 61.65...
...Plate spring (spring means), (23, curved and installed disc,
26...Fixed part) (Fixed part).

Claims

[Scope of utility model registration request]

In a rotary encoder having a hollow rotating shaft that holds an angle measuring disk and rotates together with a rotating main shaft passing through the inside, the rotary encoder includes a rotary encoder that rotatably supports the hollow rotating shaft and prevents movement of the hollow rotating shaft in the thrust direction. (The encoder body, which has both the constructed bearing means and the angle detection means for detecting the rotation angle of the angle measuring disk, can be installed on the fixed part, and is flexible only in the thrust direction. A spring means is provided, and the spring means connects either one of the fixed part and the encoder main body, and the rotation main shaft and the hollow rotation shaft. Hollow shaft rotary encoder.