Otis Elevator Company

Michel Beeuwsaert

Pascal Rebillard

Frédéric Beauchaud

Thomas Coquerelle

Jean-Noël Cloux

David Pillin

Gérard Sirigu

Hugues Fanielle

Raphaël Picard

Peter L Herkel

Nicolas Fonteneau

Dirk Heinrich Tegtmeier

Andres Monzon

Fernando Del Rio

Jean-Noel Cloux

Olivier Stanislas Dukacz

Franck J Det

Jacobus Benjamin Legez

Fernando Rico

Dominique Goulet

Alain Simonot

Florence Picard

Davy Depee

Franck Dominguez

Fabrice Hamon

Stephane Gourjeande

Aurélien Tissier

Loïc Duchamp

Loï Duchamp

Stéphane Gourjeande

Davy Dupee

An elevator system includes guide rail mounted machine and a sheave assembly that accommodates a guide rail within a hoistway. The inventive sheave assembly includes individual sheave portions rotatable along a common axis. At least two of the sheave portions are spaced apart along the shaft and a portion of the guide rail extends toward the axis beyond a plane formed tangent to the outer diameter of the sheave portions.

Sheave assembly and suspension system for an MRL elevator

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

An elevator car includes a foldable handrail mounted on top of the car. Safety switches are associated with the foldable handrail including a first safety switch and a second safety switch. The first safety switch is closed only when the handrail is folded in a fully retracted position. The second safety switch is closed when the handrail is unfolded in a fully deployed position. A safety chain is associated with the first and second safety switches for supplying power to an elevator drive system in a normal operation or an inspection operation depending on the state of the first and second safety switches.

Foldable handrail and safety switch arrangement on top of an elevator car

The elevator has a car movable vertically within a shaft between lower and upper end positions and a drive system coupled to a traction system for controlling movement of the car. A limit switch which is open when the car is in a selected distance range from one of the end positions. The limit switch forms part of a power line supplying power to the drive system for controlling movement of the car in a direction towards that end position in an inspection operation. Thus movement of the car is prevented only in that direction when the car is in the selected distance range in an inspection operation.

Elevator having a limit switch for controlling power to the drive system as an elevator car approaches a shallow pit or a low overhead

The invention relates to an Elevator car () guiding device for an elevator without a machine room and with a drive motor () mounted on a top side wall of the shaft, wherein the elevator car () is guided by means of opposed top and bottom guide elements () integral therewith and sliding or rolling on car guide rails (), characterized in that at least the top car guide element () standing in the vertical projection of the drive motor () or of the bracket thereof is attached to the car () at a lower height than the opposite guide element (), so as to enable the translation of the car () in the shaft () at a higher height where the upper part () of the car can stand opposite the drive motor () or the bracket thereof.

Elevator car guiding device for an elevator without machine room

An elevator system includes guide rail mounted machine () and a sheave assembly () that accommodates a guide rail () within a hoistway. The inventive sheave assembly includes individual sheave portions () rotatable along a common axis. At least two of the sheave portions are spaced apart along a shaft () and a portion of the guide rail extends toward the axis beyond a plane formed tangent to the outside diameter of the sheave portions.

Sheave assembly for an elevator system

Growing community of inventors

Nevoy, France

Michel Beeuwsaert