JPS63137577U

JPS63137577U -

Info

Publication number: JPS63137577U
Application number: JP2567687U
Authority: JP
Priority date: 1987-02-25
Filing date: 1987-02-25
Publication date: 1988-09-09

Description

[Brief explanation of the drawing]

第１図ないし第４図は本考案の実施例を示し、
第１図は全体の断面図、第２図はロータの磁極配
列図、第３図は内外一対の櫛歯状ステータの平面
図、第４図はその位置決め部の断面図である。第
５図は従来例の断面図、第６図はその内外一対の
櫛歯状ステータの分解斜視図である。１０…ロータ、１２…ロータ軸、１３_１，１３
_２…上下のステータ、１３ａ，１３ｂ…内外一対
の櫛歯状ステータ、１３ｅ…狭継部、１６…軸受
支持孔、１６ａ…ボス、１９_１，１９_２…軸受。 1 to 4 show embodiments of the present invention,
FIG. 1 is an overall sectional view, FIG. 2 is a magnetic pole arrangement diagram of the rotor, FIG. 3 is a plan view of a pair of inner and outer comb-shaped stators, and FIG. 4 is a sectional view of a positioning portion thereof. FIG. 5 is a sectional view of a conventional example, and FIG. 6 is an exploded perspective view of a pair of inner and outer comb-shaped stators. 10... Rotor, 12... Rotor shaft, 13 ₁ , 13
₂ ... Upper and lower stators, 13a, 13b... A pair of inner and outer comb-shaped stators, 13e... Narrow joint, 16... Bearing support hole, 16a... Boss, 19 ₁ , 19 ₂ ... Bearing.

Claims

[Claims for Utility Model Registration] 1. An axial type in which a pair of concentric inner and outer comb-shaped stators are arranged facing each other on both sides of a rotor that is permanently magnetized in the axial direction and multipole magnetized in the circumferential direction. In the step motor, the pair of inner and outer comb-shaped stators are integrally and continuously configured by a narrow joint, and a bearing support hole for fitting and supporting the bearing of the rotor is provided in the center of the inner comb-shaped stator. This is an axial type step motor. 2. The axial type step motor according to claim 1, wherein a cylindrical drawn boss is formed protruding from the periphery of the bearing support hole.