CN2736403Y - Twenty-one-strand steel cord - Google Patents
Twenty-one-strand steel cord Download PDFInfo
- Publication number
- CN2736403Y CN2736403Y CNU2004200784398U CN200420078439U CN2736403Y CN 2736403 Y CN2736403 Y CN 2736403Y CN U2004200784398 U CNU2004200784398 U CN U2004200784398U CN 200420078439 U CN200420078439 U CN 200420078439U CN 2736403 Y CN2736403 Y CN 2736403Y
- Authority
- CN
- China
- Prior art keywords
- steel
- steel cord
- strand
- cord
- twist
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0606—Reinforcing cords for rubber or plastic articles
- D07B1/0613—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the rope configuration
Abstract
The utility model discloses a twenty-one-strand steel cord which is twisted by steel wires strand twisted by monofilaments. The steel cord is composed of three steel wires strands whose cross sections are round and each of the steel wire strand consists of seven monofilaments. The cross section of the steel cord twisted by the steel wires strands is triangle. The pitch of twist of the steel cord is smaller than 6. 5 mm, and the pitch of twist of the steel wires strand is smaller than 4 mm. The steel wires strand is in the same direction of the twist with the steel cord. By adopting of the above structure, the steel cord has the advantages of high elongation rate and strong shock resistance.
Description
Technical field
The utility model relates to a kind of as high elongation type protective layer used in the pneumatic tire 20 one steel cords.
Background technology
General steel cord is because the lay pitch is bigger, and percentage elongation is less, when it during as the tire belt top layer, anti-impact force is not strong, influences the service life of tire.
Summary of the invention
The utility model provides a kind of percentage elongation height, 20 one steel cords that shock resistance is strong.
The utility model adopts following technical scheme: a kind of 20 one steel cords, compile sth. made by twisting by steel strand and form, steel strand is compiled to twist with the fingers by monofilament and is formed, and it is that circular steel strand is formed by three cross sections, every steel strand is made up of seven monofilament, and the cross section that steel strand is compiled the steel cord of twisting with the fingers is a triangle.
Less than 6.5mm, the lay pitch of steel strand is less than 4mm in the lay pitch of the cord of steel described in the utility model; The sth. made by twisting of described steel strand and steel cord is to identical.
After adopting technique scheme, the lay pitch of steel cord and steel strand is less, and its percentage elongation surpasses 4%, is the line contact between the monofilament of steel strand, the intensity height, and easy strike-through between the steel strand, corrosion resistance is strong.The band bunchy top layer that the steel cord of this structure is used for radial; protective layer as tire; can improve the capacity of resisting impact load of tire; prevent that carcass is impaired; can prevent again that simultaneously band bundled layer steel cord from causing the infiltration of moisture to cause steel cord corrosion and damage because of puncture and scarfing, greatly improves the security and the service life of tire.
Description of drawings
The utility model is further described below in conjunction with the drawings and specific embodiments
Fig. 1 is the structural representation of the utility model a kind of 20 one steel cords
The specific embodiment
According to shown in Figure 1, the utility model is compiled to twist with the fingers by 21 steel wires and is formed, and gauge of wire is 0.20mm.Earlier 7 steel wires are compiled to twist with the fingers and formed the cross section and be circular steel strand, contact for line between steel wire and the steel wire.Again three strands of steel strands are compiled to twist with the fingers and form the steel cord, the sth. made by twisting of steel strand and steel cord to be S to, the lay pitch of steel strand should be less than 4mm, the lay pitch of steel cord should be less than 6.5mm, the lay pitch of steel strand is 3.15mm in the present embodiment, the lay pitch of steel cord is 6.3mm.
Claims (3)
1, a kind of 20 one steel cords, compile sth. made by twisting by steel strand and form, steel strand is compiled to twist with the fingers by monofilament and is formed, and it is characterized in that it is that circular steel strand is formed by three cross sections, every steel strand is made up of seven monofilament, and the cross section that steel strand is compiled the steel cord of twisting with the fingers is a triangle.
2, steel cord according to claim 1, the lay pitch that it is characterized in that described steel cord is less than 6.5mm, and the lay pitch of steel strand is less than 4mm.
3, steel cord according to claim 1, the sth. made by twisting that it is characterized in that described steel strand and steel cord is to identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200784398U CN2736403Y (en) | 2004-08-09 | 2004-08-09 | Twenty-one-strand steel cord |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200784398U CN2736403Y (en) | 2004-08-09 | 2004-08-09 | Twenty-one-strand steel cord |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2736403Y true CN2736403Y (en) | 2005-10-26 |
Family
ID=35307139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200784398U Expired - Fee Related CN2736403Y (en) | 2004-08-09 | 2004-08-09 | Twenty-one-strand steel cord |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2736403Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472001A (en) * | 2009-07-03 | 2012-05-23 | 米其林技术公司 | Multi-strand cord in which the basic strands are dual layer cords, rubberised in situ |
| CN109295583A (en) * | 2018-12-03 | 2019-02-01 | 江苏兴达钢帘线股份有限公司 | A kind of high elongation rate all-steel cord of engineering tire belt |
| WO2019024136A1 (en) * | 2017-08-04 | 2019-02-07 | 江苏兴达钢帘线股份有限公司 | Open braided steel cord and application thereof |
-
2004
- 2004-08-09 CN CNU2004200784398U patent/CN2736403Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472001A (en) * | 2009-07-03 | 2012-05-23 | 米其林技术公司 | Multi-strand cord in which the basic strands are dual layer cords, rubberised in situ |
| CN102472001B (en) * | 2009-07-03 | 2015-07-15 | 米其林集团总公司 | Multi-strand cord in which the basic strands are dual layer cords, rubberised in situ |
| WO2019024136A1 (en) * | 2017-08-04 | 2019-02-07 | 江苏兴达钢帘线股份有限公司 | Open braided steel cord and application thereof |
| CN109295583A (en) * | 2018-12-03 | 2019-02-01 | 江苏兴达钢帘线股份有限公司 | A kind of high elongation rate all-steel cord of engineering tire belt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051026 Termination date: 20130809 |