Otis Elevator Company

Fernando Del Rio

Andres Monzon

Peter L Herkel

Pascal Rebillard

Nicolas Fonteneau

Dirk Heinrich Tegtmeier

Frédéric Beauchaud

Gérard Sirigu

Thomas Coquerelle

Michel Beeuwsaert

Olivier Stanislas Dukacz

Jean-Noel Cloux

David Pillin

Dominique Goulet

Alain Simonot

Jose Caballero

Florence Picard

Leandre Adifon

Jean-Noël Cloux

Julian Cabanas

Francisco Manuel Cervera Morales

Francisco Luis Sanz

Andrés Monzon

Elviro Lorenzo

Jose Canales

Antonio De Miguel

Julian Cabanas Falcon

José Canales Martinez

José Juan Caballero Garcia

Jose Canales-Martinez

Francisco Sanz

An elevator system () comprises a hoistway () extending between a plurality of landings (); an elevator car () configured for moving along the hoistway () between the plurality of landings (); a load/weight sensor () configured for detecting the load of the elevator car (); a speed detector () configured for detecting the speed of the elevator car (); and an elevator safety system. The elevator safety system comprises a safety gear () configured for stopping, upon activation, any movement of the elevator car (); and an electronic safety controller () configured for activating the safety gear () when the detected speed of the elevator car () exceeds a set speed limit. The electronic safety controller () is configured for setting the speed limit as a function of the load detected by the load/weight sensor ().

Enhancing the transport capacity of an elevator system

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

An elevator system includes a safety device strategically positioned within a hoistway to provide overhead or under car clearance during an inspection procedure, for example. An example safety device includes a triggering member that is selectively moved into a stopping position to engage a safety brake for preventing movement of an elevator car beyond a selected vertical position. The triggering member is selectively moveable in an automated manner between a retracted position and a stopping position. When the triggering member is in a retracted position, it has no effect on normal elevator system operation. When the triggering member is in the stopping position, it provides for maintaining adequate clearance between an elevator car assembly and another surface or structure within an elevator hoistway.

Safety device for use in an elevator system including a triggering member for activating a safety brake

A drive arrangement for an elevator car and a machine roomless elevator incorporates a machine () having a drive sheave () extending along an axis parallel to the axes of the deflection sheaves () associated with both the counter-weight () and the elevator car (). In this manner, the twisting which has occurred in the prior art is reduced or eliminated. The machine is mounted on a bedplate () between the guide rails. The elevator car is preferably cantilever mounted, and mounted on laterally outer surfaces of said guide rails. In this manner, the elevator car can travel vertically upwardly beyond the machine.

Low overhead machine roomless elevator configuration

Growing community of inventors

Torrelodones, Spain

Fernando Del Rio