Elevator cab suspension assembly for a double deck elevator

US10899580B2 · kind B2 · utility

Assignee

• OTIS ELEVATOR COMPANY · US

Inventors

• Walter Thomas Schmidt · Marlborough, US
• Enrico Manes · Feeding Hills, US
• Shihemn Chen · Bolton, US
• Zaffir A. Chaudhry · South Glastonbury, US
• Xiaodong Luo · Hsinchu, TW
• Luke A. Mishler · Manchester, US
• Bruce P. Swaybill · Farmington, US
• Richard J. Ericson · Southington, US
• Loi Cheng · South Windsor, US
• Meghan Mastriano · East Haven, US

Key dates

• Filing date: Jan 15, 2018
• Grant date: Jan 26, 2021
• Expiry date: Feb 16, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66B2201/306
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

An illustrative example elevator system includes a frame, a first elevator cab, a second elevator cab, and a plurality of sheaves associated with the first and second elevator cabs, respectively. A suspension assembly suspends the first and second elevator cabs within the frame. The suspension assembly has two ends in a fixed position relative to the frame. The suspension assembly includes a positive drive load bearing member along a first portion of a length of the suspension assembly and at least one other second load bearing member. A machine includes a drive sprocket that moves the positive drive load bearing member to cause movement of the first and second elevator cabs relative to the frame.