Elevator belt, method for producing such an elevator belt, and elevator system having such a belt

Patent metadata

Field	Value
Publication number	US-9758345-B2
Application number	US-45049408-A
Country	US
Kind code	B2
Filing date	Mar 18, 2008
Priority date	Mar 28, 2007
Publication date	Sep 12, 2017
Grant date	Sep 12, 2017

Abstract

An elevator belt comprising a belt body made of a first material, a reinforcement arrangement having at least one reinforcement provided on the belt body, and a tube arrangement made of a second material having at least one tube, the at least one reinforcement of the reinforcement arrangement being provided in a tube of the tube arrangement.

First claim

The invention claimed is:

1. An elevator belt, comprising:
a belt body made from a first material;
a tube arrangement made from a second material, the tube arrangement comprising at least one tube embedded in the belt body, an outer surface of each tube of the tube arrangement directly adjacent to, and entirely encased by, the belt body; and
a tensile force carrier arrangement having at least one tensile force carrier, the at least one tensile force carrier disposed within the at least one tube of the tube arrangement, the at least one tensile force carrier completely encased within the at least one tube of the tube arrangement, wherein each tensile force carrier of the tensile force carrier arrangement is separated from the first material by each respective tube of the tube arrangement,
wherein the second material is less susceptible to stress concentrations than the first material.

2. The elevator belt of claim 1 , further comprising a plurality of tensile force carriers, wherein each of the plurality of tensile force carriers disposed within each respective tube of the tube arrangement.

3. The elevator belt of claim 1 , wherein each tensile force carrier of the tensile force carrier arrangement is enclosed by a respective substantially concentric tube.

4. The elevator belt of claim 1 , wherein the at least one tube of the tube arrangement encloses the at least one tensile force carrier of the tensile force carrier arrangement in a cover-like manner.

5. The elevator belt of claim 1 , wherein the at least one tensile force carrier of the tensile force carrier arrangement is embedded in a strand-like tube of the tube arrangement, the strand-like tube comprising a plurality of strands.

6. The elevator belt of claim 1 , wherein the tube arrangement comprises a first and second tube, the first tube being connected to the second tube via a web.

7. The elevator belt of claim 6 , wherein the web is arranged substantially centrally with respect to at least one of the first and second tubes that are connected by the web and the respective tensile force carriers arranged within each of the first and second tubes.

8. The elevator belt of claim 6 , characterized in that the web is arranged substantially tangentially with respect to the first and second tubes.

9. The elevator belt of claim 8 , wherein the web at least partially forms a rear side of the elevator belt, the rear side of the belt disposed opposite a contact face of the elevator belt for interacting with a drive wheel of an elevator system.

10. The elevator belt of claim 1 , wherein the belt body comprises a contact face for interacting with a drive wheel of an elevator system, the contact face having at least one V-rib formed thereon.

11. The elevator belt of claim 1 , wherein the first material comprises an elastomer.

12. The elevator belt of claim 11 , wherein the elastomer is chosen from the group consisting of polyurethane (PU), chloroprene rubber (CR), and ethylene-propylene-diene rubber (EPDM).

13. The elevator belt as of claim 1 , wherein the second material comprises a thermoplastic polymer.

14. The elevator belt of claim 13 , wherein the thermoplastic polymer is selected from the group consisting of polyamide (PA), polyethylene (PE), polyester, polyethylene terephthalate (PET), polycarbonate (PC), polypropylene (PP), polybuteneterephthalate (PBT), polyethersulfone (PES), polyphenylene sulfide (PPS), polytetrafluor ethylene (PTFE), polyvinyl chloride (PVC), and a polyblend thereof.

15. The elevator belt of claim 13 , wherein the second material comprises a woven fabric of the thermoplastic polymer.

16. The elevator belt of claim 1 , wherein the at least one tensile force carrier of the tensile force carrier arrangement is configured as a single wire.

17. The elevator belt of claim 1 , wherein the at least one tensile force carrier is constructed from wires having one or more strands, the strands comprising at least one of steel and plastic.

18. A manufacturing method for the elevator belt of claim 1 , comprising:
producing the tube arrangement from the second material;
arranging the at least one tensile force carrier in the at least one tube of the tube arrangement;
producing the belt body from the first material; and
connecting the belt body and the tube arrangement such that the at least one tube is embedded in the belt body.

19. An elevator system comprising an elevator cabin, a drive having a drive wheel, and a belt arrangement having at least one elevator belt of claim 1 .

Assignees

• Ach Ernst
• Inventio Ag

Inventors

• Ach Ernst

Classifications

• D07B2501/2007

  Elevators · CPC title

• F16G5/06

  with reinforcement bonded by the rubber · CPC title

• D07B1/22

  Flat or flat-sided ropes; Sets of ropes consisting of a series of parallel ropes · CPC title

• B66B7/062 Primary

  Belts · CPC title