Tire for heavy industrial vehicle
US-2017182846-A1 · Jun 29, 2017 · US
Steel cord for reinforcing rubber article
US10173470B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10173470-B2 |
| Application number | US-201515329266-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 28, 2015 |
| Priority date | Jul 28, 2014 |
| Publication date | Jan 8, 2019 |
| Grant date | Jan 8, 2019 |
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- Title
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- Abstract
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Abstract
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Provided is a steel cord for reinforcing a rubber article in which both the rubber penetrability (rust prevention), and the cord strength and shear resistance are highly achieved. Provided is a steel cord for reinforcing a rubber article including: one core strand 11 having a layered-twisted structure formed by twisting a plurality of steel filaments 1 ; and a plurality of sheath strands 12 having a layered-twisted structure formed by twisting a plurality of steel filaments 2 , wherein the sheath strands are twisted around the core strand. An average value Lc of an amount of clearance between outermost layer sheath filaments constituting an outermost layer sheath of the core strand is from 0.073 to 0.130 mm, and the number of the outermost layer sheath filaments is from 7 to 10.
First claim
Opening claim text (preview).
The invention claimed is: 1. A steel cord for reinforcing a rubber article comprising: one core strand having a layered-twisted structure formed by twisting a plurality of steel filaments; and a plurality of sheath strands having a layered-twisted structure formed by twisting a plurality of steel filaments, wherein the sheath strands are twisted around the core strand, and wherein an average value Lc of an amount of clearance between outermost layer sheath filaments constituting an outermost layer sheath of the core strand is from 0.073 to 0.130 mm, and the number of the outermost layer sheath filaments is from 7 to 10. 2. The steel cord for reinforcing a rubber article according to claim 1 , wherein the number of the sheath strands is from 7 to 9. 3. The steel cord for reinforcing a rubber article according to claim 1 , wherein all filaments constituting the core strand have the same diameter. 4. The steel cord for reinforcing a rubber article according to claim 1 , wherein a cord diameter is not less than 5.00 mm. 5. The steel cord for reinforcing a rubber article according to claim 1 , wherein the ratio Lc/Ls of the average value Lc of the amount of clearance between the outermost layer sheath filaments constituting the outermost layer sheath of the core strand to an average value Ls of an amount of clearance between outermost layer sheath filaments constituting an outermost layer sheath of the sheath strand is more than 1 and not more than 1.5. 6. The steel cord for reinforcing a rubber article according to claim 1 , wherein the core strand has a two-layered structure. 7. A pneumatic tire, wherein the steel cord for reinforcing a rubber article according to claim 1 is used as a reinforcing material.
Assignees
Inventors
Classifications
Enabling filler penetration · CPC title
resulting in a twisted structure · CPC title
characterised by a value or range of the dimension given · CPC title
regarding the dimension of the wires or filaments · CPC title
Open winding · CPC title
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Frequently asked questions
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- What does patent US10173470B2 cover?
- Provided is a steel cord for reinforcing a rubber article in which both the rubber penetrability (rust prevention), and the cord strength and shear resistance are highly achieved. Provided is a steel cord for reinforcing a rubber article including: one core strand 11 having a layered-twisted structure formed by twisting a plurality of steel filaments 1 ; and a plurality of sheath strands 12…
- Who is the assignee on this patent?
- Bridgestone Corp
- What technology area does this patent fall under?
- Primary CPC classification D07B1/0613. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Jan 08 2019 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).