Elevator
US-9573792-B2 · Feb 21, 2017 · US
Steel cord and method of manufacturing rubber product
US9994995B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9994995-B2 |
| Application number | US-201314426349-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 5, 2013 |
| Priority date | Sep 7, 2012 |
| Publication date | Jun 12, 2018 |
| Grant date | Jun 12, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Steel cords have a stranded structure in which a plurality of sheath strands is intertwined around the outer circumferential surface of a core strand. The outer circumferential surface of the core strand is covered by a cushioning material made of nonwoven fabric or a resin film.
First claim
Opening claim text (preview).
The invention claimed is: 1. A stranded steel cord comprising a plurality of sheath strands intertwined around an outer circumferential surface of a core strand, the outer circumferential surface of the core strand being covered by a cushioning material made of nonwoven fabric or a resin film, wherein the cushioning material is a nonwoven fabric having mass per unit area of at least 10 g/m 2 and not greater than 40 g/m 2 . 2. The steel cord according to claim 1 , wherein the cushioning material has a melting point of 160° C. or less. 3. The steel cord according to claim 2 , wherein the cushioning material is wrapped around the core strand in a spiral pattern. 4. A method of manufacturing a rubber product, comprising the step of: vulcanizing a molded rubber article formed by embedding the steel cord described in claim 3 in an unvulcanized rubber member at a temperature equal to or greater than a melting point of the cushioning material. 5. The method of manufacturing a rubber product according to claim 4 , wherein the rubber product is a conveyor belt, and the steel cord is embedded in the unvulcanized rubber member as a core. 6. The steel cord according to claim 1 , wherein the cushioning material is wrapped around the core strand in a spiral pattern. 7. A method of manufacturing a rubber product, comprising the step of: vulcanizing a molded rubber article formed by embedding the steel cord described in claim 2 , in an unvulcanized rubber member at a temperature equal to or greater than a melting point of the cushioning material. 8. The method of manufacturing a rubber product according to claim 7 , wherein the rubber product is a conveyor belt, and the steel cord is embedded in the unvulcanized rubber member as a core. 9. A method of manufacturing a rubber product, comprising the step of: vulcanizing a molded rubber article formed by embedding the steel cord described in claim 1 , in an unvulcanized rubber member at a temperature equal to or greater than a melting point of the cushioning material. 10. The method of manufacturing a rubber product according to claim 9 , wherein the rubber product is a conveyor belt, and the steel cord is embedded in the unvulcanized rubber member as a core.
Assignees
Inventors
Classifications
comprising wrapped structures · CPC title
comprising a coating · CPC title
resulting in a twisted structure · CPC title
Reinforcing materials; Prepregs · CPC title
Tyre cords · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9994995B2 cover?
- Steel cords have a stranded structure in which a plurality of sheath strands is intertwined around the outer circumferential surface of a core strand. The outer circumferential surface of the core strand is covered by a cushioning material made of nonwoven fabric or a resin film.
- Who is the assignee on this patent?
- Yokohama Rubber Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification D07B1/16. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Jun 12 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).