JPS63109616U

JPS63109616U -

Info

Publication number: JPS63109616U
Application number: JP98487U
Authority: JP
Priority date: 1987-01-09
Filing date: 1987-01-09
Publication date: 1988-07-14

Description

[Brief explanation of the drawing]

第１図、第２図は本考案による光学式エンコー
ダの一実施例の構造を示す要部断面図、及び要部
平面図。第３図は固定スリツト板支持部材とケー
スとの構成を示す分解斜視図。第４図は回転スリ
ツト板の位置調整の構成を示す部分断面図。第５
図は固定スリツト板の平面図。第６図は回転スリ
ツト板とのスリツト群を説明する平面図。第７図
、第８図は従来例の部分断面図、及び部分平面図
。第９図は同分解斜視図。１……回転軸、２……回転スリツト板支持部材
、３……回転スリツト板、４ａ，４ｂ……ケース
、５ａ，５ｂ……固定スリツト板支持部材、６…
…固定スリツト板、７ａ……固定用ネジ、７ｂ…
…調整用ネジ、７ｃ……位置調整用溝穴、８……
発光素子、９……受光素子、１０……回転スリツ
ト板調整用穴、１１……固定スリツト板支持部材
調整用ネジ、Ａ_１……回転軸中心、Ａ_２……回転
スリツト板中心、Ｂ……発光素子光軸の中心、Ｃ
……固定スリツト板支持部材外周側凸状端面、Ｄ
……ケース側凹状端面、Ｅ……ケース側固定スリ
ツト板支持部材取り付けよう凹部、Ｆ……固定ス
リツト板上の発光素子の光軸が通るべき点。 1 and 2 are a sectional view and a plan view of a main part showing the structure of an embodiment of an optical encoder according to the present invention. FIG. 3 is an exploded perspective view showing the structure of the fixed slit plate support member and the case. FIG. 4 is a partial cross-sectional view showing the configuration for adjusting the position of the rotating slit plate. Fifth
The figure is a plan view of the fixed slit plate. FIG. 6 is a plan view illustrating a group of slits with a rotating slit plate. 7 and 8 are a partial sectional view and a partial plan view of a conventional example. FIG. 9 is an exploded perspective view. DESCRIPTION OF SYMBOLS 1... Rotating shaft, 2... Rotating slit plate support member, 3... Rotating slit plate, 4a, 4b... Case, 5a, 5b... Fixed slit plate supporting member, 6...
...fixing slit plate, 7a...fixing screw, 7b...
...Adjustment screw, 7c...Position adjustment slot, 8...
Light emitting element, 9... Light receiving element, 10... Hole for adjusting the rotating slit plate, 11... Screw for adjusting the fixed slit plate supporting member, A ₁ ... Center of the rotating shaft, A ₂ ... Center of the rotating slit plate, B... ...center of light-emitting element optical axis, C
...Fixed slit plate support member outer peripheral side convex end surface, D
...Concave end surface on the case side, E...Concave portion for attaching the fixed slit plate support member on the case side, F...Point where the optical axis of the light emitting element on the fixed slit plate should pass.

Claims

[Scope of utility model registration request]

A fixed slit plate attached to a fixed slit plate support member is provided in the gap between a light emitting element and a group of light receiving elements arranged to face each other, and a rotating slit plate fixed to a rotating slit plate support member attached to a rotating shaft is provided. In the optical rotary encoder, the outer circumferential end surface of the fixed slit plate support member is formed into a convex end surface concentric with the optical axis of the light emitting element, and the case has a convex end surface concentric with the optical axis of the light emitting element. By forming a concave portion including a concave end face of a concentric arc, and installing the fixed slit plate support member in the concave portion, the fixed slit plate support member can be placed in the concave portion and oriented with respect to the optical axis of the light emitting element. An optical rotary encoder characterized by being configured to be rotatable in reverse.