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.
Patent No.:
Date of Patent:
Jun. 13, 2017
Filed:
Apr. 28, 2016
Johnson Electric S.a., Murten, CH;
JOHNSON ELECTRIC S.A., Murten, CH;
Abstract
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 on an outer surface of a friction ring fixed to the 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 comes to a stop, wherein the brake shoesare drawn radially inward by spring elements and function again as a locking mechanism. The spring elements are pretensioned such that the brake shoes effect a sufficient retaining torque.