Otis Elevator Company

David Pillin

Pascal Rebillard

Michel Beeuwsaert

Gérard Sirigu

Peter L Herkel

Nicolas Fonteneau

Dirk Heinrich Tegtmeier

Andres Monzon

Frédéric Beauchaud

Thomas Coquerelle

Franck J Det

Jean-Noël Cloux

Fernando Del Rio

Jean-Noel Cloux

Olivier Stanislas Dukacz

Jacobus Benjamin Legez

Fernando Rico

Dominique Goulet

Alain Simonot

Hugues Fanielle

Raphaël Picard

Raphael Picard

Florence Picard

Davy Depee

Sébastien Fougeron

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 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 a safety lock () for an elevator landing door detecting intrusion of a person in the shaft through the landing door, activating a bistable switch () through its spindle lever () putting the elevator into safe operation when the landing door is opened by turning the corresponding key, it being impossible to reset the switch () manually from the inside of the shaft, which comprises a device () fixing the lock in the open position with the door open, that is released when the door is closed such that the switch () can be reset by turning the lock () in the closing direction of the door in which the key is turned in the opposite direction to the opening direction, the switch () being reset mechanically by a mechanical means connected to the spindle lever ().

Safety lock for elevator landing door detecting intrusion in the shaft through the landing door and elevator thus equipped

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

Saint-Brisson sur Loire, France

David Pillin