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Patent Searching and Data


Title:
EDDY-CURRENT SPEED REDUCER
Document Type and Number:
Japanese Patent JPH10243627
Kind Code:
A
Abstract:

To increase braking force and prevent thermal deterioration of a annular body made of a good conductor, by connecting the annular bodies made of a good conductor to inner faces on both ends of a braking drum.

A magnet 20 is so located as to face an inner face of a steel braking drum 13 fixed to a rotary shaft 4 through a ferromagnetic plate 21. When the rotating braking drum 13 crosses magnetic flux from the magnet 20, braking force is generated in the braking drum 13 due to eddy current. To at least one end of the inner face of the braking drum 13 which does not face the ferromagnetic plate 21, an annular body 41 which is made of a good conductor such as copper is connected.


Inventors:
YAMADA TADAHARU
KOBAYASHI SUSUMU
OGAWA MAKOTO
KUWABARA TORU
OKUMURA EIJI
Application Number:
JP1997000056849
Publication Date:
September 11, 1998
Filing Date:
February 25, 1997
Export Citation:
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Assignee:
ISUZU MOTORS LTD
International Classes:
H02K49/02; H02K49/04; (IPC1-7): H02K49/02
Attorney, Agent or Firm:
山本 俊夫