JPS624635U

JPS624635U -

Info

Publication number: JPS624635U
Application number: JP9681185U
Authority: JP
Priority date: 1985-06-24
Filing date: 1985-06-24
Publication date: 1987-01-12

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す部分断面図
、第２図は第１図の―線の断面図、第３図は
従来装置を示す部分断面図である。図中、１は回転軸、２はロータ、３はライニン
グ、４はアーマチユア、７はコイル、８はギヤ、
８ａは凹部である。尚、図中同一符号は同一又は
相当部分を示す。 FIG. 1 is a partial sectional view showing an embodiment of this invention, FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIG. 3 is a partial sectional view showing a conventional device. In the figure, 1 is the rotating shaft, 2 is the rotor, 3 is the lining, 4 is the armature, 7 is the coil, 8 is the gear,
8a is a recess. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Scope of claims for utility model registration] (1) A rotating shaft, a rotor fixed to this rotating shaft,
A gear that is rotatably inserted into the rotating shaft in contact with the rotor, an armature that is slidably engaged with the gear in the axial direction and is provided facing the rotor, and controls the connection between the rotor and the armature. An electromagnetic coupling device comprising a coil, characterized in that a recess is provided on at least one of the inner circumferential surface of the gear in contact with the rotor or the outer circumferential surface of the rotating shaft in a portion opposing thereto. (2) The electromagnetic coupling device according to claim 1 of the utility model registration, characterized in that a metal is press-fitted into the inner diameter of the gear, and a recess is provided on the inner diameter surface of the metal. (2) The electromagnetic coupling device according to claim 1 of the utility model registration, characterized in that a metal is press-fitted into the inner diameter of the gear, and a recess is provided on the inner diameter surface of the metal.