JPH0248643U

JPH0248643U -

Info

Publication number: JPH0248643U
Application number: JP12855188U
Authority: JP
Priority date: 1988-09-30
Filing date: 1988-09-30
Publication date: 1990-04-04

Description

[Brief explanation of drawings]

第１図は本発明の一実施例の外面を示す正面図
である。第２図は該実施例の背外面を示す背面図
である。第３図は、第２図に示す出力軸１２に沿
つて第２図の紙面と平行に該実施例を切断した横
断面を示す断面図である。第４図は第２図の―
線断面を示す縦断面図である。第６図は該実施
例のカバー板２４およびガスケツト２３を外した
、歯車ハウジング２１の開口端面を示す底面図で
ある。第５図は第３図に示す出力軸１２と第２扇
形歯車１３を、それらの結合を分解して示す分解
断面図である。第７図は第２図に示すガスケツト
２３の平面図である。第８図は、該実施例の電動
減速装置の出力軸１２で駆動する車両上エンジン
のスロツトルバルブ駆動機構の概要を示す斜視図
である。１：電気モータ、２：ウオーム、３：クラツチ
駆動歯車（２，３：減速歯車）、３ａ：ピン、４
：軸、５：電気コイル、６：円板、６ａ：穴、７
：板ばね、８：クラツチ従動歯車、１１：第１扇
形歯車、１２：出力軸、１２ａ：溝、１３：第２
扇形歯車、１３ａ：貫通穴、１３ｂ〜１３ｄ：爪
、１４：ピニオンギア、１５：プリント基板、１
６〜１８：導体板、１６ａ，１６ｂ，１７ａ，１
８ａ：接点部材、１９，２０：アーム、２１：歯
車ハウジング（装置ハウジング）、２２：モータ
ケース、２３：ガスケツト（シール材）、２４：
カバー板（カバー）、２５：開口（グロメツト受
け開口）、２６：グロメツト（グロメツト）、２
６ａ：溝（シール材に対向する面）、２６ｂ：気
密台部（カバーに当接する面）、２６ｃ：突条（
カバーに当接する面）（２６ａ〜２６ｃ：グロメ
ツトの側面）、２７：電気リード（電気リード）
、２８：穴、２９：フイルタ、３０：リング、３
１：リテーナ、３２：プレート、３３：ベアリン
グ、３４：ベアリング、３５：ポテンシヨメータ
（５，１５，３５：電気装置）、３６：ロツクね
じ、３７：シール材、３８：ゴムシール、６９：
スロツトルバルブ。 FIG. 1 is a front view showing the outer surface of an embodiment of the present invention. FIG. 2 is a rear view showing the back outer surface of the embodiment. FIG. 3 is a sectional view showing a transverse cross section of the embodiment along the output shaft 12 shown in FIG. 2 and parallel to the paper plane of FIG. Figure 4 is the same as Figure 2.
FIG. 3 is a vertical cross-sectional view showing a line cross section. FIG. 6 is a bottom view showing the open end surface of the gear housing 21 with the cover plate 24 and gasket 23 removed. FIG. 5 is an exploded cross-sectional view showing the output shaft 12 and the second sector gear 13 shown in FIG. 3, with their connections separated. FIG. 7 is a plan view of the gasket 23 shown in FIG. 2. FIG. 8 is a perspective view schematically showing a throttle valve drive mechanism for a vehicle engine driven by the output shaft 12 of the electric reduction gear of this embodiment. 1: Electric motor, 2: Worm, 3: Clutch drive gear (2, 3: Reduction gear), 3a: Pin, 4
: Axis, 5: Electric coil, 6: Disc, 6a: Hole, 7
: Leaf spring, 8: Clutch driven gear, 11: First sector gear, 12: Output shaft, 12a: Groove, 13: Second
Sector gear, 13a: Through hole, 13b to 13d: Claw, 14: Pinion gear, 15: Printed circuit board, 1
6-18: Conductor plate, 16a, 16b, 17a, 1
8a: Contact member, 19, 20: Arm, 21: Gear housing (device housing), 22: Motor case, 23: Gasket (sealing material), 24:
Cover plate (cover), 25: Opening (grommet receiving opening), 26: Grommet (grommet), 2
6a: Groove (surface facing the sealing material), 26b: Airtight base (surface contacting the cover), 26c: Projection (
surface that comes into contact with the cover) (26a to 26c: side surface of grommet), 27: Electrical lead (electrical lead)
, 28: hole, 29: filter, 30: ring, 3
1: Retainer, 32: Plate, 33: Bearing, 34: Bearing, 35: Potentiometer (5, 15, 35: Electrical device), 36: Lock screw, 37: Seal material, 38: Rubber seal, 69:
Throttle valve.

Claims

[Claims for Utility Model Registration] A device having a reduction gear and an electrically energized electric device inside the device housing, an electric lead connected to the electric device supported by a grommet, and a gap between the device housing and the electric lead by the grommet. In an electric speed reduction device that maintains the tightness of the device housing, the opening of the device housing is sealed with a cover via a sealing material, and a grommet receiving opening formed in the device housing has a part of its periphery open, and the electrical lead. a grommet having a high surface that contacts the cover and a low surface that faces the sealing material, the grommet being press-fitted into the grommet receiving opening; An electric speed reduction device characterized in that the electric speed reduction device is sealed with the cover.