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US 11,117,783 B2Granted
Self-propelled elevators and elevator brake systems
OwnerKenny Wai Keung Lauinventor
Life of this patent
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Abstract
This invention is directed to a self-propelled elevator system having multiple motors or one motor, and methods for synchronizing said multiple motors. This invention is also directed to an elevator brake system to be used in said self-propelled elevator system or other types of elevators to increase their level of safety.
Claims13
An elevator system comprising:
- (a) An elevator cab;
- (b) Two parallel guide rails engaged with said elevator cab;
- (c) An elevator main frame connected to said elevator cab, wherein said elevator main frame comprises at least one vehicle propulsion system comprising a power supply system and one or more motors coupled to a roller assembly, wherein said roller assembly is powered by said motors to move the elevator cab along said guide rails;
- and
- (d) One or more brake systems, each comprising (1) a brake housing, said brake housing comprising at least one electromechanical brake;
- said electromechanical brake comprising at least two brake shoes, two electromagnets and two springs, each of said brake shoe being connected to one end of said spring;
- said two brake shoes being spaced apart to form a space for placement of one of said two parallel guide rails;
- (2) a brake control box, said brake control box comprising a controller, said controller controlling power supply to said two electromagnets, wherein when power supply to the electromagnets is cut off, said two springs are released and press said brake shoes against said guide rail.
5 more elements
An elevator brake system comprising (1) a brake housing comprising at least one electromechanical brake;
- said electromechanical brake comprising at least two brake shoes, two electromagnets and two springs, each of said brake shoe being connected to one end of said spring;
- said two brake shoes being spaced apart to form a space for placement of a guide rail (2) a brake control box comprising a controller, said controller controlling power supply to said two electromagnets, wherein when power supply to the electromagnets is cut off, said two springs are released and press said brake shoes against said guide rail.
Dependencies are inferred from the claim text.