Cabin arrangement for a double-deck elevator

The double-decker elevator's car arrangement with a tuned vibration damper and actuator system addresses unwanted vibrations and noise, providing effective damping and improved comfort through automatic adjustment.

EP4587361B1Active Publication Date: 2026-04-22INVENTIO AG
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
INVENTIO AG
Filing Date
2023-09-05
Publication Date
2026-04-22

AI Technical Summary

Technical Problem

Existing double-decker elevators experience undesirable vibrations and noise due to vertical adjustments of elevator cars, which affect ride comfort, and there is a need for improved vibration damping and automatic adjustment of vibration dampers to varying operating conditions.

Method used

A car arrangement for a double-decker elevator featuring a vibration damper with a damper mass and spring system tuned to resonate at specific frequencies to counteract unwanted vibrations, combined with an actuator for adjusting the damper's position to match changing environmental conditions, and a control unit for automatic tuning.

Benefits of technology

Effectively attenuates vibrations and noise, enhancing passenger comfort by actively damping vibrations across varying conditions, with a simple, robust, and maintenance-free design.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure IMGF0001
    Figure IMGF0001
  • Figure IMGF0002
    Figure IMGF0002
Patent Text Reader

Abstract

The invention relates to an elevator car assembly (2) for a double-deck elevator (1), comprising: an elevator car frame (5) which can be installed in a shaft (6) in a movable manner between multiple floors; two elevator cars (3, 4) which are connected to the elevator car frame (5) such that the elevator cars can be moved together with the elevator car frame (5) and are arranged one over the other when the elevator car frame (5) is installed in the shaft (6) in a movable manner between the floors, wherein a spacing (A) between the elevator cars (3, 4) arranged one or the other can be adjusted by moving the elevator cars (3, 4) relative to each other by means of an actuator (8); and a vibration damper (13) which comprises a damping mass (16) and an elongated damping spring (15). The damping mass (16) is connected to a free end of the damping spring (15), and the other end of the damping spring (15) is connected to an elevator car assembly (2) component (3, 4, 5, 8, 12, 22, 23) which is susceptible to vibrations. The damping mass (16) and the damping spring (15) are adapted to each other such that the vibration damper (13) generates desired vibrations during the operation of the actuator (8), said vibrations counteracting undesired vibrations of the component (3, 4, 5, 8, 12, 22, 23) which is susceptible to vibrations.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Frequency-adaptive leaf-spring tuned mass damper

    WO2021175491A1