Otis Elevator Company

Stephane Gourjeande

Pascal Rebillard

Peter L Herkel

James Leo Hubbard

Gerard Sirigu

Nicolas Fonteneau

Frédéric Beauchaud

Gérard Sirigu

Franck Dominguez

Thomas Coquerelle

Michel Beeuwsaert

Jean-Noël Cloux

Fabrice Hamon

Guillaume Georges Bonatre

Hugues Fanielle

Robert B Leach

Fabrice Boniface

Raphaël Picard

Gregor Stricker

Loï Duchamp

Aurélien Tissier

Robert Bryan Leach

Guillaume Bonatre

An exemplary method is useful for controlling movement of an elevator car in an elevator system that includes a machine that selectively moves the elevator car and a machine brake that selectively resists movement of the elevator car. The method includes determining whether the elevator car is near a landing and determining whether a door of the elevator car is open. A desired operation includes desired movement of the elevator car while the elevator car is near the landing and the door is open. A determination is made whether the elevator car moves other than according to the desired movement. The machine brake is applied for stopping movement of the elevator car responsive to elevator car movement other than the desired movement while the elevator car is near the landing and the door is open.

Elevator car control in a landing zone using a machine brake in response to undesired car movement

An elevator system comprises a hoistway (), an elevator car () arranged to move vertically within the hoistway and a drive machine () arranged in the hoistway outside the travel path of the car () or vertical projection thereof. The car () is coupled to the machine () by a rope () which is guided by a pair of idler sheaves () so as to pass under the car (). The idler sheaves () have a diameter of less than 120 mm. The disclosed arrangement allows both overhead space and pit depth to be minimised.

Elevator installation with reduced hoistway dimensions

Growing community of inventors

Gien, France

Stephane Gourjeande