JPS62177262U - - Google Patents

Description

【図面の簡単な説明】[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 (1)

【実用新案登録請求の範囲】 (1) 少なくとも固定子と回転子と、これ等を挾
持もしくは内装する如く配設される筐体とより成
り、一方の筐体に前記回転子を支承する為の軸を
固着した片側軸支構造で、負荷と連結する為のプ
ーリ部材を配設する小形電動機において、回転子
支持部材の一部を筐体の外部に突出せしめ、該突
出部をプーリと成す事を特徴とする小形電動機。 (2) 前記筐体の少なくとも一部を磁性体で構成
した事を特徴とする実用新案登録請求の範囲第１
項記載の小形電動機。 (3) 前記回転子支持部材を非磁性体で形成した
事を特徴とする実用新案登録請求の範囲第１，２
項記載の小形電動機。 (4) 前記回転子支持部材の、回転子鉄芯と筐体
との間の外周面に磁性体より成る円筒部材を配設
した事を特徴とする実用新案登録請求の範囲第３
項記載の小形電動機。 (5) 前記磁性体円筒部材端面と前記筐体との間
の小空隙に磁性流体を介在させた事を特徴とする
実用新案登録請求の範囲第４項記載の小形電動機
。[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.