Otis Elevator Company

Minglun Qiu

T Thomas Suchodolski

Richard J Ericson

Patricia Derwinski

Charles S Darling

Richard S Blakelock

Jay S Lengacher

Brian K Meek

Anying Shen

Scott E McCullough

Scott E Mccullough

An exemplary elevator system includes an elevator car having an integrated cabin and car frame structure including a platform thickness between a floor surface in the cabin and a lowermost surface on a support beam used for supporting the car beneath the floor surface. A sheave assembly is supported beneath the floor surface. The sheave assembly includes a plurality of sheaves and a plurality of subframe beams. The sheaves and subframe beams fit within the platform thickness such that the subframe beams and the sheaves are no lower than the lowermost surface on the support beam. A plurality of isolation members are between the sheave assembly and the elevator car for isolating an interior of the cabin from vibrations associated with movement of the sheaves.

Underslung elevator car configuration

An exemplary elevator system includes an elevator car () having an integrated cabin and car frame structure including a platform thickness (T) between a floor surface in the cabin and a lowermost surface on a support beam used for supporting the car beneath the floor surface. A sheave assembly () is supported beneath the floor surface. The sheave assembly includes a plurality of sheaves and a plurality of subframe beams. The sheaves and subframe beams fit within the platform thickness (T) such that the subframe beams and the sheaves are no lower than the lowermost surface on the support beam. A plurality of isolation members are between the sheave assembly and the elevator car for isolating an interior of the cabin from vibrations associated with movement of the sheaves ().

A device for surveying an enclosed structure () includes a platform () configured to longitudinally traverse the structure (), at least one first distance) sensor () connected to the platform () and configured to measure a lateral distance between a point on the platform () and a wall of the structure (), at least one second distance sensor () connected to the platform () and configured to measure a longitudinal distance between a point on the platform () and a first end of the structure (), and a transport machine () configured to move the platform () substantially longitudinally within the structure ().

Methods and devices for surveying elevator hoistways

An elevator car includes a car frame and a platform assembly having a composite platform and a support frame. The composite platform includes upper and lower metallic sheets with a oriented strand wood layer therebetween and bonded to the sheets. The support frame includes a perimeter structure and a pair of centrally located stringers. The composite platform is rigidly attached about its outer edges to the perimeter structure and extends unsupported between the centrally located stringers and the perimeter structure. In a particular embodiment, the elevator car includes a door frame extending from the car frame and platform assembly and which is isolated from the cab of the elevator car.

Elevator car frame and platform assembly

A method and an apparatus for installing and balancing an elevator car is disclosed. The method for installing and balancing an elevator car situated in a hoistway where cables attach to the car, is characterized by the following steps: providing an adjustable connector attached to the elevator car having two degrees of adjustable motion; positioning the connector to a desired location underneath the car, connecting the cables to the adjustable connector, and balancing the elevator car with an adjustable weight which is also attached to the underside of the elevator car. The apparatus for installing and balancing an elevator car having cables attached to its underside includes: (1) an adjustable connector attached to the elevator car having two degrees of adjustable motion; and, (2) an adjustable weight which attaches to the underside of the elevator car and is used to balance the car.

Method and apparatus for installing and balancing an elevator car

The vibrations of an elevator are attenuated between the elevator and a cab by providing an elevator frame disposed in a first plane and a platform in a second plane, the platform being suspended from the frame by a plurality of side braces extending therefrom. A vibration attenuator is disposed directly between each side brace and the platform to attenuate vibrations that may pass between the frame and the platform.

Growing community of inventors

Bloomfield, CT, United States of America

Minglun Qiu