Otis Elevator Company

Thomas Coquerelle

Frédéric Beauchaud

Pascal Rebillard

Nicolas Fonteneau

Gérard Sirigu

Michel Beeuwsaert

Jean-Noël Cloux

Olivier Stanislas Dukacz

Dominique Goulet

Peter L Herkel

Dirk Heinrich Tegtmeier

Andres Monzon

Franck Dominguez

Fernando Del Rio

David Pillin

Jean-Noel Cloux

Fabrice Hamon

Alain Simonot

Florence Picard

Hugues Fanielle

Raphaël Picard

Stephane Gourjeande

Aurélien Tissier

Loïc Duchamp

Loï Duchamp

Stéphane Gourjeande

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

A safety device for an elevator system includes a retractable element mounted on a support. The retractable element has a stopping position in which a catch portion of the retractable element projects from the support to engage a triggering member of a safety brake associated with an elevator car as the elevator car traveling in a selected direction approaches a selected vertical position, and a retracted position. An actuator selectively controls the position of the retractable element. A position sensor is responsive to the position of the retractable element to make sure that it is in its stopping position when needed.

Safety device for securing minimum spaces at the top or bottom of an elevator shaft being inspected, and elevator having such safety devices

An electric safety switch () resetting device () for the car safety device () of elevators includes a switch () shaped as a box attached to the lower skirt () of the car frame, near the car safety blocks (). A mobile upper tongue () is engaged with a car safety block triggering lever (), which tongue () can trigger the switch () under the action of said triggering lever () and reset it in the opposite direction when operated by the maintenance operator. A connecting rod arrangement () hinged to the tongue () can be remotely actuated by the operator using an actuator () while standing at the landing opening near the arrested elevator car, to drive said tongue () to a position that will reset the switch ().

Electric safety switch resetting device for a car safety device of elevators

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

The counterweight according to the invention for an elevator with a frame () comprising two vertical U-shaped posts () parallel and opposed to each other and connected to each other by at least one upper cross-beam () and one lower cross-beam (), wherein the wings of the vertical posts accommodate flat ballast weights forming a mass and piled up on each other in the frame (), is characterized in that the upper ballast weights (), at least those located at a higher height than that of the conventional tilted assembly of the lower one-piece ballast weights ('), comprise at least two parts interlocked with each other so that they can be successively assembled by interlocking them in a plane and in rows between the two posts (), said interlocking providing a good lateral stiffness to avoid the lateral escape of said two interlocked ballast weight parts (and) out of said frame () during counterweight displacement.

Counterweight for an elevator, ballast weights for this counterweight and elevator equipped therewith

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Douai, France

Thomas Coquerelle