JPS62177262U

JPS62177262U -

Info

Publication number: JPS62177262U
Application number: JP19361185U
Authority: JP
Priority date: 1985-12-18
Filing date: 1985-12-18
Publication date: 1987-11-11

Description

[Brief explanation of the drawing]

第１図〜第３図は、本考案に成る小形電動機の
例を示す断面図、第４図は従来技術に成る小形電
動機の例を示す断面図、第５図は該例のプーリ単
体の断面図ａ及び正面図ｂである。符号の説明、１……固定子、２……回転子、２
―１……回転子鉄芯、２―２……永久磁石、２―
３……回転子支持部材、２―４……軸、３……筐
体、３筐……磁性体より成る筐体、４……プーリ
部材、４′……プーリ部分、４―１……内径、５
……磁性体円筒部材、６……磁性流体、７……軸
受。 1 to 3 are cross-sectional views showing an example of a small electric motor according to the present invention, FIG. 4 is a cross-sectional view showing an example of a small electric motor according to the prior art, and FIG. 5 is a cross-sectional view of a single pulley of the example. Figure a and front view b. Explanation of symbols, 1...Stator, 2...Rotor, 2
-1...Rotor iron core, 2-2...Permanent magnet, 2-
3... Rotor support member, 2-4... Shaft, 3... Housing, 3... Housing made of magnetic material, 4... Pulley member, 4'... Pulley part, 4-1... Inner diameter, 5
...Magnetic cylindrical member, 6...Magnetic fluid, 7...Bearing.

補正昭６２．６．４図面の簡単な説明を次のように補正する。明細書第６頁１９行目を下記のように補正する
。「第５図は第４図に示す小形電動機のプーリ単
体の断面図ａ及び正面図ｂである。」Amendment June 4, 1982 The brief description of the drawing is amended as follows. The 19th line on page 6 of the specification is amended as follows. ``Figure 5 is a sectional view a and a front view b of the pulley of the small electric motor shown in Figure 4.''

Claims

[Claims for Utility Model Registration] (1) Consisting of at least a stator and a rotor, and a casing disposed to sandwich or house them, one of the casings for supporting the rotor. In a small electric motor that has a single-side shaft support structure with a fixed shaft and is equipped with a pulley member for connecting to a load, a part of the rotor support member is made to protrude outside the casing, and the protruding part is used as a pulley. A small electric motor featuring (2) Utility model registration claim 1, characterized in that at least a portion of the casing is made of a magnetic material.
Small electric motor as described in section. (3) Utility model registration claims 1 and 2 characterized in that the rotor support member is formed of a non-magnetic material.
Small electric motor as described in section. (4) Utility model registration claim 3, characterized in that a cylindrical member made of a magnetic material is disposed on the outer peripheral surface of the rotor supporting member between the rotor iron core and the casing.
Small electric motor as described in section. (5) The small electric motor according to claim 4, which is a registered utility model, characterized in that a magnetic fluid is interposed in a small gap between the end face of the magnetic cylindrical member and the housing.