CN202347185U - Seven strand steel cord used in belted layer of pneumatic tire - Google Patents
Seven strand steel cord used in belted layer of pneumatic tire Download PDFInfo
- Publication number
- CN202347185U CN202347185U CN2011202913552U CN201120291355U CN202347185U CN 202347185 U CN202347185 U CN 202347185U CN 2011202913552 U CN2011202913552 U CN 2011202913552U CN 201120291355 U CN201120291355 U CN 201120291355U CN 202347185 U CN202347185 U CN 202347185U
- Authority
- CN
- China
- Prior art keywords
- heart yearn
- internal layer
- twisting
- steel cord
- pneumatic tire
- 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 - Lifetime
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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
- D07B1/062—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration
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- Ropes Or Cables (AREA)
- Tires In General (AREA)
Abstract
The utility model discloses a seven strand steel cord used in the belted layer of a pneumatic tire. The steel cord comprises an inner layer core wire group and an outer layer core wire group, wherein the inner layer core wire group is formed by weaving and twisting two inner layer core wires (1) which are arranged to form a rectangular structure; the outer layer core wire group is formed by weaving and twisting five outer layer core wires (2) which are arranged at the periphery of the inner layer core wires (1) and weaved and twisted in the same direction; and the cross section of the steel cord is oval. The steel cord has the advantages that the strike through performance, the decay resistance and the puncture resistance are high; and the consumption can be reduced to reduce the manufacturing cost of the tire.
Description
Technical field
The utility model provides seven strands of steel cords that band bundled layer uses in a kind of pneumatic tire.
Background technology
Use 3+6 shaped steel cord at present in the underloading truck; Form by three heart yearns of internal layer and outer six roots of sensation heart yearn; Six roots of sensation heart yearn dense arrangement is around the internal layer heart yearn; Almost very close to each other between internal layer heart yearn and the outer heart yearn, make rubber be difficult to penetrate in the steel cord, cause that the bonding force of steel cord and rubber descends.And, have the space in the monofilament of steel cord because rubber can not fully be penetrated in the steel cord, and water conservancy diversion moisture is played in these spaces or salt penetration advances in the steel cord, and when tire during by deflection repeatedly, the steel cord maybe accelerated corrosion, the service life of reducing tire.
Summary of the invention
The utility model provides seven strands of steel cords that band bundled layer uses in a kind of pneumatic tire, and not only the strike-through performance is good, the corrosion resistance ability strong for it, seven strands of steel cords of puncture, and can reduce steel cord use amount, practices thrift the manufacturing cost of tire.
The utility model has adopted following technical scheme: seven strands of steel cords that band bundled layer uses in a kind of pneumatic tire; It comprises internal layer heart yearn group and outer heart yearn group; Internal layer heart yearn group is compiled to twist with the fingers by two internal layer heart yearns and is formed; The arrangement of being rectangle of two internal layer heart yearns, outer heart yearn group are compiled to twist with the fingers by five outer heart yearns and are formed, five outer heart yearns be distributed in two internal layer heart yearns around do to compile in the same way and twist with the fingers that to form the cross section be oval-shaped steel cord.
The sth. made by twisting of described internal layer heart yearn is to being the S sth. made by twisting, and it is 14.0-18.0mm that the internal layer heart yearn is compiled the lay pitch of twisting with the fingers.The sth. made by twisting of described outer heart yearn is to being the S sth. made by twisting, and it is 14.0-18.0mm that outer heart yearn is compiled the lay pitch of twisting with the fingers.Described internal layer heart yearn is a steel wire, and the diameter of internal layer heart yearn is 0.20-0.30mm.Described outer heart yearn is a steel wire, and the diameter of outer heart yearn is 0.30-0.38mm.
The utlity model has following beneficial effect: the skin of the utility model adopts five steel wires, and internal layer is made up of two internal layer heart yearns, can keep or improve the mechanical property of steel cord like this; Guarantee that tire reaches corresponding bearing capacity; Five steel wires not exclusively wrap up the heart yearn of centre, leave more gap, are convenient to the infiltration of rubber; Help improving the bonding force between rubber and the steel cord, thereby avoid causing corrosion because of moisture (moisture) enters into steel cord inside.It also has superior function such as impact resistance, puncture preferably, and the production cost of this in addition steel cord can significantly reduce, and increases economic efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
In Fig. 1, the utility model provides seven strands of steel cords that band bundled layer uses in a kind of pneumatic tire, and it comprises internal layer heart yearn group and outer heart yearn group; Internal layer heart yearn group is compiled to twist with the fingers by two internal layer heart yearns 1 and is formed, and the sth. made by twisting of internal layer heart yearn 1 is to being the S sth. made by twisting, and internal layer heart yearn 1 is a steel wire; The diameter of internal layer heart yearn 1 is 0.20-0.30mm, and it is 14.0-18.0mm that internal layer heart yearn 1 is compiled the lay pitch of twisting with the fingers, the arrangement of being rectangle of two internal layer heart yearns 1; Outer heart yearn group is compiled to twist with the fingers by five outer heart yearns 2 and is formed; Outer heart yearn 2 is a steel wire, and the diameter of outer heart yearn 2 is 0.30-0.38mm, and the sth. made by twisting of outer heart yearn 2 is to twisting with the fingers for S; It is 14.0-18.0mm that outer heart yearn 2 is compiled the lay pitch of twisting with the fingers, five outer heart yearns 2 be distributed in two internal layer heart yearns 1 around do to compile in the same way and twist with the fingers that to form the cross section be oval-shaped steel cord.
Claims (5)
1. seven strands of steel cords that band bundled layer uses in the pneumatic tire; It is characterized in that it comprises internal layer heart yearn group and outer heart yearn group; Internal layer heart yearn group is compiled to twist with the fingers by two internal layer heart yearns (1) and is formed; Two internal layer heart yearns (1) arrangement of being rectangle, outer heart yearn group are compiled to twist with the fingers by five outer heart yearns (2) and are formed, five outer heart yearns (2) be distributed in two internal layer heart yearns (1) around do to compile in the same way and twist with the fingers that to form the cross section be oval-shaped steel cord.
2. seven strands of steel cords that band bundled layer uses in the pneumatic tire according to claim 1, the sth. made by twisting that it is characterized in that described internal layer heart yearn (1) is to being the S sth. made by twisting, it is 14.0-18.0mm that internal layer heart yearn (1) is compiled the lay pitch of twisting with the fingers.
3. seven strands of steel cords that band bundled layer uses in the pneumatic tire according to claim 1, the sth. made by twisting that it is characterized in that described outer heart yearn (2) is to being the S sth. made by twisting, it is 14.0-18.0mm that outer heart yearn (2) is compiled the lay pitch of twisting with the fingers.
4. seven strands of steel cords that band bundled layer uses in the pneumatic tire according to claim 1 and 2 is characterized in that described internal layer heart yearn (1) is a steel wire, and the diameter of internal layer heart yearn (1) is 0.20-0.30mm.
5. seven strands of steel cords that use according to band bundled layer in claim 1 or the 3 described pneumatic tires is characterized in that described outer heart yearn (2) is a steel wire, and the diameter of outer heart yearn (2) is 0.30-0.38mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202913552U CN202347185U (en) | 2011-08-11 | 2011-08-11 | Seven strand steel cord used in belted layer of pneumatic tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202913552U CN202347185U (en) | 2011-08-11 | 2011-08-11 | Seven strand steel cord used in belted layer of pneumatic tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202347185U true CN202347185U (en) | 2012-07-25 |
Family
ID=46536200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202913552U Expired - Lifetime CN202347185U (en) | 2011-08-11 | 2011-08-11 | Seven strand steel cord used in belted layer of pneumatic tire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202347185U (en) |
-
2011
- 2011-08-11 CN CN2011202913552U patent/CN202347185U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |
|
| CX01 | Expiry of patent term |