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Load bearing member with elastomer-phosphonate blend binder for elevator systems

An elevator system, phosphonate technology, applied in polyurea/polyurethane adhesives, household appliances, adhesive types, etc., can solve problems such as weak flame retardancy

Active Publication Date: 2021-09-24
OTIS ELEVATOR CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In at least some belts, the weak adhesion between the polyurethane or other elastomeric sheath and the polymer-based composite core (e.g. carbon fiber / epoxy) of the composite belt even after PMC core reactivation (e.g. plasma, mechanical or Chemical reactivation) for elastomer sheath extrusion or coating application remains a challenge
In addition, the fiber / epoxy composite core and elastomer have weak flame retardancy

Method used

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  • Load bearing member with elastomer-phosphonate blend binder for elevator systems
  • Load bearing member with elastomer-phosphonate blend binder for elevator systems
  • Load bearing member with elastomer-phosphonate blend binder for elevator systems

Examples

Experimental program
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Effect test

Embodiment Construction

[0032] see now figure 1 , an exemplary embodiment of an elevator system 10 is shown. Elevator system 10 includes an elevator car 14 configured to move vertically up and down within hoistway 12 along a plurality of car guide rails (not shown). Guide assemblies mounted to the top and bottom of elevator car 14 are configured to engage the car guide rails to maintain proper alignment of elevator car 14 as it moves within hoistway 12 .

[0033] The elevator system 10 also includes a counterweight 15 configured to move vertically up and down within the hoistway 12 . The counterweight 15 moves in a direction generally opposite to the movement of the elevator car 14 . The movement of the counterweight 15 is guided by a counterweight guide rail (not shown) installed in the hoistway 12 . In the non-limiting embodiment shown, at least one load bearing member 30 , such as a belt, coupled to elevator car 14 and counterweight 15 cooperates with traction sheave 18 mounted to drive machine...

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Abstract

The present invention provides a belt for an elevator system having a core and an elastic sheath over the core. An elastomer-phosphonate blend bond adheres the core to the sheath.

Description

[0001] field of invention [0002] Embodiments disclosed herein relate to elevator systems, and more particularly to load bearing members having elastomer-phosphonate blend binders for use in elevator systems. [0003] Background of the invention [0004] Elevator systems may be used to carry passengers, goods, or both between floors in a building. Some elevators are traction based and utilize load bearing members such as ropes or belts to support the elevator car and achieve the desired movement and positioning of the elevator car. [0005] Where a belt is used as a load bearing member, a polyurethane sheath or skin is typically placed over and adhered to a polymer matrix composite (PMC) core. In at least some belts, the weak adhesion between the polyurethane or other elastomeric sheath and the polymer-based composite core (e.g. carbon fiber / epoxy) of the composite belt even after PMC core reactivation (e.g. plasma, mechanical or Chemical reactivation) for elastomer sheath e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B7/06C09J175/04C09J201/00C09J121/00C09J11/08C09J11/06
CPCB66B7/062C09J11/06C09J11/08C09J121/00C09J175/04C09J201/00C08L85/02D07B1/22F16G1/08F16G1/16D07B2501/2007D07B5/006D07B1/16D07B1/162D07B2205/3007D07B2401/205B29D29/00D07B2801/10B66B9/00B29K2021/003B29K2075/00
Inventor G.S.扎菲里斯S.A.伊亚斯特曼
Owner OTIS ELEVATOR CO