JPS6012729U - Electromagnetic coupling device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

Fig. 1 is a partial sectional view showing a conventional electromagnetic coupling device, Fig. 2 is a plan view of the rotor shown in Fig. 1, Fig. 3 is a plan view of the armature shown in Fig. 1, and Fig. 4 is an implementation of this invention. A partial sectional view showing an example, FIG. 5 is a plan view of the rotor of FIG. 4, and FIG. 6 is a plan view of the rotor of FIG.
FIG. In the figure, 1 is a stator, 2 is an excitation coil, 11 is a rotor, l
la, flb, and 12a are slits, 11C912b is a rib, and lld and 12C are friction surfaces. Note that the same reference numerals in the figures indicate the same or corresponding parts. Figure 1 Figure 4

Claims (2)

[Scope of utility model registration request] (1) A rotor, an armature disposed opposite to the rotor so as to be movable in the axial direction through a gap, and magnetic isolation slits provided at several locations in the circumferential direction on the friction surfaces of the rotor and the armature. , a rib provided between these slits,
An electromagnetic coupling device comprising an excitation coil that presses the rotor and the armature, wherein the ribs between the slits provided on the rotor and the armature are each formed in a concave shape and are lower than the friction surface. . (2) The electromagnetic coupling device according to claim 1, wherein the rib is formed into a concave shape by press working.