Title:
ABNORMALITY DETECTOR FOR ELECTROMAGNETIC BRAKE
Document Type and Number:
Japanese Patent JP2010275023
Kind Code:
A
Abstract:
To provide an abnormality detector for an electromagnetic brake, capable of accurately detecting any abnormality of the electromagnetic brake.
A back plate 12 is interposed between a brake lining 7 to be pressed against a brake drum and a brake arm 4, and a strain gage 13 is affixed to the back plate 12 to detect the pressure between the brake lining 7 and the brake drum. Any abnormality of an electromagnetic brake is detected by checking the consistency of the pressure with the output of a main control device for executing the operation of the electromagnetic brake.
Inventors:
NAKAMORI MASANORI
HONGO SHOJI
HONGO SHOJI
Application Number:
JP2009125973A
Publication Date:
December 09, 2010
Filing Date:
May 26, 2009
Export Citation:
Assignee:
OTIS ELEVATOR JAPAN
International Classes:
B66B5/02; F16D49/16; F16D66/00; F16D65/22
Domestic Patent References:
| JPH0616359A | 1994-01-25 | |||
| JPS62211281A | 1987-09-17 | |||
| JPH10338431A | 1998-12-22 | |||
| JPH06107387A | 1994-04-19 | |||
| JPH072441A | 1995-01-06 |
Attorney, Agent or Firm:
Tsuyoshi Hashimoto
Hiromichi Kobayashi
Tomioka Kiyoshi
Hiromichi Kobayashi
Tomioka Kiyoshi
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