JPS5927329U

JPS5927329U - electromagnetic clutch

Info

Publication number: JPS5927329U
Application number: JP12158282U
Authority: JP
Inventors: 小坂橋　孝利
Original assignee: サンデン株式会社
Priority date: 1982-08-12
Filing date: 1982-08-12
Publication date: 1984-02-20

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の電磁クラッチの一例を示す縦断面図、第
２図は同じく部分拡大図、第３図は同じく説明用の模式
図、第４図は本考案による電磁クラッチの一実施例を示
す縦断面図、第５図は同じく部分拡大図、第６図は同じ
く説明用の模式図、第７図は本考案による電磁クラッチ
の他の実施例を示す縦断面図、第８図は同じく説明図用
の模式１・・・ローター、２・・・アーマチュア板、３
．４・・・スリット、５・・・スリット、６・・・励磁
コイル。Fig. 1 is a longitudinal sectional view showing an example of a conventional electromagnetic clutch, Fig. 2 is a partially enlarged view, Fig. 3 is a schematic diagram for explanation, and Fig. 4 is an embodiment of an electromagnetic clutch according to the present invention. 5 is a partially enlarged view, FIG. 6 is a schematic diagram for explanation, FIG. 7 is a longitudinal sectional view showing another embodiment of the electromagnetic clutch according to the present invention, and FIG. Explanatory diagram model 1...rotor, 2...armature plate, 3
．． 4...Slit, 5...Slit, 6...Exciting coil.

Claims

[Claims for Utility Model Registration] 1. A clutch rotor rotatably driven by an external drive source and an armature arranged to face the clutch rotor are wound around a core disposed inside the clutch rotor. In an electromagnetic clutch that is included in the magnetic circuit of an excitation coil and transmits rotational driving force by attracting the armature to the friction surface of the clutch rotor, the above-mentioned shaft end surface that becomes the friction surface of the clutch rotor An electromagnetic clutch characterized in that a magnetic isolation slit formed at a position corresponding to the core is processed so that the width of the slit on the core side is wider than the width of the slit on the armature side. 2. The electromagnetic clutch according to claim 1, wherein the width of the magnetic cut-off slit abruptly changes in the middle in a direction parallel to the rotation axis of the clutch rotor. 3. The electromagnetic clutch according to claim 1, wherein the magnetic cutoff slit has a tapered shape that gradually changes in a direction parallel to the rotation axis of the clutch rotor. 4 The above magnetic shielding slit is connected to the above core side slit.
. The ratio of the armature side slit width to the slit width is 0.
．． 3 to 0.6, the electromagnetic clutch according to claim 1, 2, or 3 of the utility model registration claim.