JPS6086916U

JPS6086916U - Fixed slit plate mounting structure for photoelectric encoder

Info

Publication number: JPS6086916U
Application number: JP17872383U
Authority: JP
Inventors: 礒崎　弘毅
Original assignee: 日本サーボ株式会社
Priority date: 1983-11-21
Filing date: 1983-11-21
Publication date: 1985-06-14

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 the drawing]

第１図〜第４図は従来技術説明図で第１図は構成図、第
２図はそのＡ−Ａ’断面の矢視図、第３　。図は動作説明図でａは展開図、ｂは発生電圧の波形図、
第４図は問題点説明用の断面図、第５図は本考案の一実
施例を示す固定スリット板の平面図、第６図はその取付
は状態を示す断面図、第７図は本考案の他の実施例を示
す固定スリット板の平面図である。〈符号の説明〉、１・・・電動機、２・・・回転軸、３
・・・移動スリット板、３−１・・・透光スリット、４
・・・固定基台、５・・・発光素子、６，１６．１７・
・・固定スリット板、６−１．１６−１．１７−１・・
・透光スリット、６−２．　６　．３．　１６−６、　
１６　７・・・締結用ねじ、７・・・受光素子、８・・
・遮光カバー、１６−４．１７−４・・・ねじ孔（丸孔
）、１６−８・・・ワッシャ、１６−５．１７−５．１
７−６・・・大−径のねじ孔又は長孔。、第１図第５図1 to 4 are explanatory diagrams of the prior art, in which FIG. 1 is a configuration diagram, FIG. 2 is a cross-sectional view taken along line A-A', and FIG. The figure is an explanatory diagram of the operation, a is a developed diagram, b is a waveform diagram of the generated voltage,
Fig. 4 is a sectional view for explaining the problem, Fig. 5 is a plan view of a fixed slit plate showing an embodiment of the present invention, Fig. 6 is a sectional view showing the state of its installation, and Fig. 7 is a sectional view of the invention It is a top view of the fixed slit plate which shows another Example. <Explanation of symbols>, 1... Electric motor, 2... Rotating shaft, 3
...Moving slit plate, 3-1...Transparent slit, 4
...Fixed base, 5...Light emitting element, 6,16.17.
・・Fixed slit plate, 6-1.16-1.17-1・・
・Translucent slit, 6-2. 6. 3. 16-6,
16 7... Fastening screw, 7... Light receiving element, 8...
・Light shielding cover, 16-4.17-4...Screw hole (round hole), 16-8...Washer, 16-5.17-5.1
7-6...Large diameter screw hole or long hole. , Figure 1, Figure 5

Claims

[Scope of utility model registration request]

A circular plate with translucent slits of the same slit width at a constant pitch along the circumference is integrally attached to the rotating shaft of a rotating body to form a moving slit plate, and a small number of translucent slits with the same width and pitch as the translucent slits are attached integrally to the rotating shaft of a rotating body. A substantially rectangular plate equipped with light-transmitting slits is fixedly supported at a position parallel to and facing the movable slit plate through a small gap to form a fixed slit plate, and the light from the light source behind the movable slit plate is fixedly supported. In a non-contact type photoelectric encoder that passes through a slit in a slit plate and photoelectrically converts the transmitted light to obtain an electric signal corresponding to the amount of rotational movement of the rotating body, the fixed slit plate has a fixing base attached to the fixed slit plate. At least two screw holes used for screw fastening are arranged a certain distance apart, and the difference between the diameter of at least one of the screw holes and the diameter of the screw connecting the screw holes is The side where the difference between the diameter of the other screw hole and the diameter of the screw that fastens the screw hole is larger than the difference between the diameter of the screw hole and the diameter of the screw that fastens the screw hole. A fixed slit plate mounting structure for a photoelectric encoder, characterized in that the screws are tightened loosely enough to allow the fixed slit plate to move in a direction parallel to the plate surface.