Electromagnetic clutch and manufacturing method of magnetic...

Details Electromagnetic clutch and manufacturing method of magnetic... Electromagnetic clutch and manufacturing method of magnetic...

2006-07-04

2006-07-04

Bonck, Rodney H. (Department: 3681)

192 clutches and power-stop control

Clutches

Operators

C029S602100, C192S084910, C335S296000

Reexamination Certificate

active

07070034

ABSTRACT:
An electromagnetic clutch includes a first magnetic member with a large-diameter cylindrical portion made of a magnetic metal and a second magnetic member with a small-diameter cylindrical portion made of a magnetic metal and contained in the large-diameter cylindrical portion are joined to an annular member of a non-magnetic material interposed between the large and small-diameter cylindrical portions to constitute a magnetic path forming member. The outer and inner circumferential edges of the annular member are welded to the large-diameter cylindrical portion and the small-diameter cylindrical portion, with the front end surface of the annular member receding a second predetermined distance (L2) from the front end surfaces of the large and small-diameter cylindrical portions. Then, the front end surfaces of the large and small-diameter cylindrical portions are cut until the receded distance of the front end surface of the annular member becomes a first predetermined distance (L1).

REFERENCES:
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patent: 5791039 (1998-08-01), Tabuchi et al.
patent: 6510932 (2003-01-01), Ikeda et al.
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patent: 2000-230577 (2000-08-01), None

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