Magnet rotor, movable magnet-type instrument with the magnet...

Details Magnet rotor, movable magnet-type instrument with the magnet... Magnet rotor, movable magnet-type instrument with the magnet...

2005-08-01

2009-08-25

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S049030, C310S043000, C310S156380

Reexamination Certificate

active

07579743

ABSTRACT:
A magnet rotor in which rotation prevention and positional displacement (rattling, and misalignment of axes) between a magnet and a rotor body can be restricted, a movable magnet type-instrument with the magnet rotor, and a stepping motor with the magnet rotor. In the magnet rotor, projections (11) and recesses (12) arranged with predetermined intervals and formed in a substantially rectangular shape are provided on the inner wall of a hollow section of an annular magnet (10). Rising side wall sections (11A) defined by the projections (11) are radially directed with the position of the axis (G) of the magnet rotor (R) as the standard. In the rotor body (20), rotation prevention sections (21) for preventing relative rotation between the rotor body (20) and the annular magnet (10) are formed by placing a plastic material along the shapes of the projections (11) and the recesses (12).

REFERENCES:
patent: 4206377 (1980-06-01), Sudler
patent: 4267472 (1981-05-01), Sudler et al.
patent: 4795930 (1989-01-01), Schwartz et al.
patent: 5465020 (1995-11-01), Peterson
patent: 5500994 (1996-03-01), Itaya
patent: 5945758 (1999-08-01), Goltz et al.
patent: 6031305 (2000-02-01), Satoh et al.
patent: 2001/0048261 (2001-12-01), Kojima et al.
patent: 2002/0190594 (2002-12-01), Numaya
patent: 2007/0132335 (2007-06-01), Ionel et al.
patent: 58-87476 (1983-06-01), None
patent: 2-123949 (1990-05-01), None
patent: 2001-289876 (2001-10-01), None
patent: 2001-317970 (2001-11-01), None
patent: 2001-339932 (2001-12-01), None

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