To provide an electromagnetic coupling device capable of improving workability when attaching a coil bobbin to a yoke and eliminating trouble resulting from the use of a rubber bush.
The electromagnetic coupling device includes a yoke 2 having a cylindrical circumferential wall 2a, a coil bobbin attached to the inner circumference of the yoke 2, an excitation coil wound around the coil bobbin, and a lead wire 3 drawn to the outside of the yoke 2 from the excitation coil via the circumferential wall 2a in which a notch 7 is formed at an edge of the circumferential wall 2a of the yoke, and also a blocking member attachment part 8 for attaching a blocking member to block the opening of the notch 7 is provided in the notch cross section of the notch 7 to externally cover the outer circumference of the lead wire 3 with an insulating tube 4 having heat-shrinkable properties, which is an elastic body so that the lead wire can be drawn to the outside of the yoke 2 in a state that the lead wire 3 is engaged with the blocking member attachment part 8 via the insulating tube 4 having heat-shrinkable properties.
ISHIHARA YUICHIRO
YAMAMOTO AKIRA
| JPS62141933U | 1987-09-08 | |||
| JPH0359529U | 1991-06-12 | |||
| JP2004260930A | 2004-09-16 |
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