JPH0159809U

JPH0159809U -

Info

Publication number: JPH0159809U
Application number: JP15472787U
Authority: JP
Priority date: 1987-10-12
Filing date: 1987-10-12
Publication date: 1989-04-14
Also published as: JPH0428012Y2

Description

[Brief explanation of the drawing]

図は全て本考案の一実施例に係る光学式ロータ
リエンコーダを説明するもので、第１図は光学式
ロータリエンコーダの全体構成を示す縦断面図、
第２図はその分解斜視図、第３図はプリント基板
と支持板の取付状態を示す底面図、第４図は第１
のコード板と金属板の分解斜視図、第５図は金属
板を内軸にかしめ固定する工程の説明図、第６図
は第２のコード板とクリツク板の分解斜視図、第
７図はクリツク板を外軸にかしめ固定する工程の
説明図である。１…内軸、２…外軸、３…第１のコード板、４
…第２のコード板、５…軸受、６…支持板、７…
プリント基板、７ａ…挿入孔、８…ケース、１５
…保持部、１５ａ…規制片、１５ｂ…腕部、１６
…板ばね、１７…ボール、１８…ストツパ、１９
…係止爪、２０…開口、２２…受発光素子、２３
…金属板、２３ａ…孔、２４…ベース板、２４ａ
…非反射部、２４ｂ…突起、２５…反射板、２５
ａ…反射部、２６…クリツク板、２６ａ…カム部
、２６ｂ…取付孔、２７…ベース板、２７ａ…透
孔、２７ｂ…切欠き、２７ｃ…非反射部、２７ｄ
…突起、２８…反射板、２８ａ…反射部、２９…
連結片、３０…係合片、３１…ゴム環。 The figures are all for explaining an optical rotary encoder according to an embodiment of the present invention, and FIG. 1 is a longitudinal sectional view showing the overall structure of the optical rotary encoder;
Figure 2 is an exploded perspective view, Figure 3 is a bottom view showing how the printed circuit board and support plate are attached, and Figure 4 is the exploded perspective view.
Figure 5 is an explanatory diagram of the process of caulking and fixing the metal plate to the inner shaft, Figure 6 is an exploded perspective view of the second code plate and click plate, and Figure 7 is an exploded perspective view of the second code plate and metal plate. FIG. 6 is an explanatory diagram of the process of caulking and fixing the click plate to the outer shaft. 1... Inner shaft, 2... Outer shaft, 3... First code plate, 4
...Second code plate, 5...Bearing, 6...Support plate, 7...
Printed circuit board, 7a...insertion hole, 8...case, 15
...Holding part, 15a...Regulation piece, 15b...Arm part, 16
...Plate spring, 17...Ball, 18...Stopper, 19
...Latching claw, 20...Opening, 22...Receiving/emitting element, 23
...metal plate, 23a...hole, 24...base plate, 24a
...Non-reflective portion, 24b...Protrusion, 25...Reflector, 25
a... Reflective part, 26... Click plate, 26a... Cam part, 26b... Mounting hole, 27... Base plate, 27a... Through hole, 27b... Notch, 27c... Non-reflective part, 27d
...Protrusion, 28...Reflector, 28a...Reflector, 29...
Connection piece, 30... Engagement piece, 31... Rubber ring.

Claims

[Scope of utility model registration request]

an operating shaft rotatably supported by a bearing; a rotary plate fixed to the operating shaft and having a cord portion consisting of a reflective portion and a non-reflective portion; and a light receiving/emitting light fixed to the bearing side and opposing at least the cord portion. In the optical rotary encoder, the optical rotary encoder is provided with a printed circuit board on which an element is mounted, and a click mechanism is formed by a plurality of cam parts provided on the rotary plate and a sphere that can be engaged with and detached from the cam part. A support plate having a rotation plate is fixed to the bearing side, and the holding part is made to face the cam part of the rotary plate through an opening formed in the printed circuit board, and the leaf spring locked to the holding part and the rotation An optical rotary encoder characterized in that the spherical body is interposed between the spherical body and the plate.