Elevator damper assembly

A technology of dampers and components, used in elevators, transportation and packaging in buildings, etc., can solve problems such as reducing the ability of vibration isolators to reduce noise and vibration, excessive compression of vibration isolators, etc.

Inactive Publication Date: 2009-10-28
OTIS ELEVATOR CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Higher stiffness reduces the isolator's ability to reduce noise and vibration
[0003] Addit...

Method used

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  • Elevator damper assembly
  • Elevator damper assembly
  • Elevator damper assembly

Examples

Experimental program
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Embodiment Construction

[0013] figure 1 Selected portions of elevator system 20 are shown schematically. In this example, a plurality of damper assemblies 22 are positioned between an elevator cab 24 and an associated frame 26 that supports the cab 24 and allows it to move within the tunnel in a known manner. The damper assembly 22 provides vibration isolation so that persons within the cabin 24 will not need to experience the vibrations experienced by the frame 26 . The damper assembly 22 also provides isolation from structure-borne noise that may be generated due to frame 26 vibrations, operation of the elevator machine, or from the surrounding environment of the cabin 24 .

[0014] Damper assembly 22 includes a resilient member that deflects in response to loads associated with relative motion between pod 24 and frame 26 . The damper assembly 22 serves to isolate the capsule 24 from vibrations that would be transmitted to the capsule 24 if there were a rigid connection between the frame 26 and t...

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PUM

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Abstract

A damper assembly (22) is useful for controlling elevator ride quality. The damper assembly (22) includes a resilient member that deflects responsive to a load. An effective stiffness of the resilientmember is less than an associated rate of deflection of the resilient member. The resilient member includes a first portion (30, 40) that deflects prior to a second portion (32, 42) responsive to aninitial loading on the damper assembly (22).

Description

technical field [0001] Elevator systems include various features to enhance ride quality. One such feature is the provision of a vibration isolator or damper arrangement between the elevator cab and the associated elevator car frame. The vibration isolator device is used to minimize the transmission of vibrations from the car frame to the cabin. Passengers in the cabin are thus carried more smoothly. Additionally, vibration dampers are used to minimize the amount of noise that is transmitted into the elevator, thereby providing a quieter ride. Background technique [0002] One disadvantage associated with conventional devices is that vibration isolators comprising elastomeric, natural rubber or metal spring components are constrained by system level static load and maximum deformation requirements. This constraint makes conventional vibration isolators stiffer than desired. Higher stiffness reduces the isolator's ability to reduce noise and vibration. [0003] Additiona...

Claims

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Application Information

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IPC IPC(8): B66B11/02
CPCB66B11/0273
Inventor Y·关R·K·罗伯茨
Owner OTIS ELEVATOR CO
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