The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 13, 2006

Filed:

Jun. 26, 2003
Applicants:

Yoichiro Yamamoto, Wako, JP;

Katsuhiro Kitamura, Wako, JP;

Rikiya Kunii, Wako, JP;

Keiichi Ooiso, Wako, JP;

Kenji Honda, Wako, JP;

Akihiro Iwazaki, Wako, JP;

Inventors:

Yoichiro Yamamoto, Wako, JP;

Katsuhiro Kitamura, Wako, JP;

Rikiya Kunii, Wako, JP;

Keiichi Ooiso, Wako, JP;

Kenji Honda, Wako, JP;

Akihiro Iwazaki, Wako, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16D 55/36 (2006.01); B60L 7/00 (2006.01); H01F 7/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

An electromagnetic brake interposed between a fixed housing and a rotating member. The electromagnetic brake includes a multiplate brake mechanism, a ringlike core member fixed through an annular brake guide inside the fixed housing, an exciting coil accommodated in an annular groove formed on the core member, and a ringlike armature member arranged radially outside of the core member. Each of the core member and the armature member has a plurality of tapering surfaces. The tapering surfaces of the core member are respectively complementary in shape to the tapering surfaces of the armature member. The electromagnetic brake further includes a cylindrical pressure member movable in a direction of pressing the multiplate brake mechanism. The cylindrical pressure member has one end fixed to the armature member and another end engaged with the multiplate brake mechanism.


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