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Title:
DRIVE ACTUATOR
Document Type and Number:
Japanese Patent JP2016211740
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a drive actuator having a centrifugal brake for keeping a shaft stationary when the actuator is unenergized.SOLUTION: An actuator drive for blinds, roller shutters and the like has a drive motor and a centrifugal brake. A rotational disk is coupled to a drive shaft of the drive motor via a shaft flange. Two centrifugal shoes are smoothly guided in the rotational disk. In the unpowered state, brake shoes of the centrifugal shoes engage, frictionally or in a positive-locking way, with an outer surface of a friction ring fixed to a motor housing. Upon starting of the drive motor, the brake shoes release the friction ring. The radial displacement of the brake shoes is maintained until the drive motor stops, where the brake shoes are drawn radially inward by spring elements and function again as a locking mechanism.SELECTED DRAWING: Figure 1

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Inventors:
STEN WAHRISCH
MATTHIAS KULKE
WOLFGANG WINKLER
Application Number:
JP2016092254A
Publication Date:
December 15, 2016
Filing Date:
May 02, 2016
Export Citation:
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Assignee:
JOHNSON ELECTRIC SA
International Classes:
F16D59/00; F16D63/00; F16D65/06; F16D65/09; H02K7/102
Domestic Patent References:
JP2002176822A2002-06-25
JP3186045U2013-09-19
JP2007513303A2007-05-24
JP2007197952A2007-08-09
JP2007270447A2007-10-18
JPH01119936U1989-08-14
JPS3927589B1
JPH01121734U1989-08-17
Foreign References:
US5988328A1999-11-23
GB1349748A1974-04-10
GB391548A1933-05-04
GB2284642A1995-06-14
Attorney, Agent or Firm:
Takaki Nishijima
Disciple Maru Ken
Shinichiro Tanaka
Fumiaki Otsuka
Hiroyuki Suda
Hiroshi Uesugi
Naoki Kondo



 
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