JPH0268658U

JPH0268658U -

Info

Publication number: JPH0268658U
Application number: JP14750388U
Authority: JP
Priority date: 1988-11-10
Filing date: 1988-11-10
Publication date: 1990-05-24

Description

[Brief explanation of drawings]

第１図はこの考案に係るＤＣギヤードモータの
一例を示す要部の断面図、第２図Ａ，Ｂおよび第
３図Ａ，Ｂは同ＤＣギヤードモータの要部の動作
説明図で、第２図Ｂおよび第３図Ｂはそれぞれ同
図Ａの平面図である。第４図は第１図のものにお
いて、透過形光電センサを用いた場合の要部断面
図、第５図Ａ，Ｂはそれぞれこの考案の他の実施
例の要部の平面図および断面図、第６図Ａ，Ｂは
それぞれ第５図ものにおいて、透過形光電センサ
を用いた場合の平面図および断面図、第７図はこ
の考案のさらに他の実施例を示す要部の斜視図、
第８図Ａ，Ｂはそれぞれ第７図のものの動作説明
図、第９図は従来のＤＣギヤードモータを示す断
面図、第１０図は第９図のものの要部の拡大断面
図、第１１図は第９図のもののエンコーダを示す
下面図である。１……ケース、２……モータ、３……減速ギヤ
機構、４……入力ギヤ、５……出力ギヤ、６，８
，９……ギヤ、７……エンコーダ（ギヤ）、１６
，１９……光電センサ。 FIG. 1 is a cross-sectional view of the main parts of an example of the DC geared motor according to this invention, and FIGS. Figures B and 3B are plan views of Figure A, respectively. FIG. 4 is a sectional view of the main part of the one shown in FIG. 1 when a transmission type photoelectric sensor is used, and FIGS. 5A and B are a plan view and a sectional view of the main part of another embodiment of this invention, respectively. FIGS. 6A and 6B are a plan view and a cross-sectional view of the case shown in FIG. 5, respectively, when a transmission type photoelectric sensor is used, and FIG. 7 is a perspective view of a main part showing still another embodiment of this invention.
Figures 8A and B are respectively explanatory diagrams of the operation of the motor shown in Figure 7, Figure 9 is a sectional view showing a conventional DC geared motor, Figure 10 is an enlarged sectional view of the main part of the motor shown in Figure 9, and Figure 11. 9 is a bottom view of the encoder of FIG. 9; FIG. 1... Case, 2... Motor, 3... Reduction gear mechanism, 4... Input gear, 5... Output gear, 6, 8
, 9... Gear, 7... Encoder (gear), 16
, 19...Photoelectric sensor.

Claims

[Scope of utility model registration request]

A reduction gear mechanism consisting of a case, a plurality of gears including an input gear and an output gear, and arranged in the case, and a motor attached to the case to drive the input gear of the reduction gear mechanism. and a photoelectric sensor provided in the case to detect the rotation of the gear of the reduction gear mechanism, and an encoder provided in the case to change the output of the photoelectric sensor according to the rotation speed of the gear, A DC geared motor characterized in that the encoder is configured by one of the gears of the reduction gear mechanism itself.