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ropes for lifts

A technology of lifts and ropes, applied in the field of ropes, can solve the problems of coating peeling, coating wear resistance, durability and flame resistance inspection, strength reduction, etc., to achieve improved bonding force, excellent safety, and excellent durability Effect

Inactive Publication Date: 2019-08-02
HYUNDAI ELEVATOR CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the prior art, the bond between the high-strength fiber and the coating cannot be effectively formed
Considering the characteristics of ropes for elevators that are required to withstand large loads, if the bonding force between the high-strength fibers and the coating is small, the coating on the portion of the high-strength fibers that bears the load will fall off, which may lead to dangerous consequences
[0008] In addition, not only the high-strength fiber part, but also the formation of the coating that directly withstands friction is also important, but the wear resistance, durability, and flame resistance that the coating should have are not considered.
[0009] Moreover, if Figure 1a As shown, the rope used for the elevator is hung on the tractor and bent in a U shape. According to the degree of bending, the load is concentrated on the outer side of the high-strength fiber part inside the rope, that is, the opposite side of the surface that is in contact with the tractor. There will be a phenomenon of local strength reduction, but the above problems cannot be investigated

Method used

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Examples

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no. 1 example

[0070] Figure 2a and Figure 2b A first embodiment of a rope 100 for an elevator of the present invention is shown.

[0071] As mentioned in the prior art, the bonding between the carbon fiber or glass fiber composite material 110 and the coating is very important, therefore, in order to strengthen its bonding, in the first embodiment of the rope 100 for elevators of the present invention, the carbon fiber Or the glass fiber composite material 110 has a protrusion 111 . Through the protruding portion 111, the contact area becomes wider, and the bonding force between the various parts is also improved accordingly.

[0072] Therefore, the rope 100 for elevators of the first embodiment of the present invention includes a carbon fiber or glass fiber composite material 110 and a coating 120 bonded to the outside of the carbon fiber or glass fiber composite material 110, the carbon fiber or glass fiber composite material 110 The material 110 is in the shape of a conveyor belt, a...

no. 2 example

[0076] image 3 A second embodiment of a rope 100 for an elevator of the present invention is shown.

[0077] The rope 100 for the elevator of the second embodiment of the present invention adopts a plurality of circular carbon fiber or glass fiber composite materials 110, instead of adopting the carbon fiber or glass fiber composite material 110 in the shape of a conveyor belt, the carbon fiber of the circular core Or the glass fibers 112 are surrounded by the polymer matrix 113 in a twisted manner.

[0078] Due to the characteristics of the polymer matrix 113, the above-mentioned structure can not only enhance the bonding force with the coating 120, but also enhance the local hardness of the carbon fiber or glass fiber composite material 110. Can maintain excellent stability.

no. 3 example

[0080] Figure 4a and Figure 4b A third embodiment of the rope 100 for elevators of the present invention is shown.

[0081] In the rope 100 for elevators according to the third embodiment of the present invention, a plurality of polymer yarns 114 are braided on the outermost side of the carbon fiber or glass fiber composite material 110, so as to not only enhance the bonding force between the composite material and the coating 120 As a result, the local strength of the carbon fiber or glass fiber composite material 110 is also enhanced, and therefore, excellent stability can be maintained even when a local load is applied by a tractor or the like.

[0082] More specifically, Figure 4a In the illustrated embodiment, a carbon fiber or glass fiber composite material 110 is provided with a circular core of carbon or glass fibers 112 on the inside and cylindrically woven polymer yarns 114 on the outside.

[0083] Figure 4b In the illustrated embodiment, the carbon fiber or ...

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Abstract

The present invention relates to a belt-shaped rope (100) for an elevator, which comprises: a carbon fiber or glass fiber composite material (110); and a coating layer (120) connected to the external side of the carbon fiber or glass fiber composite material (110), wherein the composite material has a protrusion part (111), or is a circular core consisting of the twisted carbon fiber or glass fiber (112) and a polymer substrate (113), or wherein multiple polymer yarns (114) are braided or disposed in a random pattern. In addition, the coating layer (120) includes: 100 parts by weight of a thermoplastic polyurethane resin; 10 to 50 parts by weight of a phosphate-based flame retardant; and 1 to 10 parts by weight of an adhesion-improving modifier.

Description

technical field [0001] The present invention relates to a rope for elevators capable of effectively bearing loads while reducing weight. Background technique [0002] An elevator is a general term for a structure that loads things up and down inside it. Elevators are a complex of technologies such as machinery, motors, and electronics, and are a comprehensive technology industry that is closely related to people's convenient and safe lives. [0003] The ropes used for the lift are used to support and move the lift up and down. A common rope used for elevators is composed of a core and its surrounding strands twisted with 3 to 8 strands, and therefore has a substantially circular cross section. Wherein, the rope strand refers to the strand formed by twisting the rope yarn into one or more layers. [0004] With the recent completion of many super high-rise buildings, we are actively developing special rope technology for elevators. For example, due to the long-distance run...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D07B1/00D07B1/14B29C70/02B66B7/06C09D175/04C09D5/18
CPCB66B7/06D07B1/04
Inventor 宋达铉朴城民辛淪宗朴柱范
Owner HYUNDAI ELEVATOR CO LTD