Tire comprising carcass reinforcement cables having low perviousness, and textile threads associated with the carcass reinforcement
A technology of crown reinforcements and reinforcements, applied to the reinforcement layer of pneumatic tires, special tires, tire parts, etc., can solve the problems of reduced durability
Inactive Publication Date: 2014-08-20
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
View PDF9 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0021] However, it was found that under particularly severe running conditions (in particular in terms of load and temperature), the tires thus manufactured have an improved durability compared to tires which do not include said associated textile threads on at least one layer of the carcass reinforcement. Sexually reduced performance
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0115] The figures are not drawn to scale for ease of understanding.
[0116] exist Figure 1a and Figure 1b , a tire 1 of size 315 / 70R22.5 comprises a radial carcass reinforcement 2 anchored in two beads 3 around a bead wire 4 . The carcass reinforcement 2 is formed of a single layer of metal cords. The carcass reinforcement 2 is sheathed by a crown reinforcement 5 , which is itself covered by a tread 6 . The crown reinforcement 5 is formed radially from the inside to the outside as follows:
[0117] - a triangular layer 5a formed of non-clad, non-extensible metal cords 9.28 continuous over the entire width of the ply and oriented at an angle equal to 65°,
[0118] - a first working layer 5b formed of non-clad, non-extensible metal cords 11.35 continuous over the entire width of the ply and oriented at an angle equal to 18°,
[0119] - a second working layer 5c formed of non-clad, non-extensible metal cords 11.35 continuous over the entire width of the ply and oriented ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| specific surface area | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a tire having a radial carcass reinforcement that consists of at least one layer of metal reinforcement layers, said tire including at least one crown reinforcement, which is in turn radially covered by a tread, said tread being joined to two beads via two sidewalls. According to the invention, the metal reinforcement elements of at least one layer of the carcass reinforcement are cables having, in the so-called perviousness test, a flow rate of less than 20 cm<3> / min, and at least one carcass reinforcement layer is provided on at least one surface consisting of textile threads, and at least the layer made of an elastomeric mixture, which axially engages with the end of at least the radially innermost crown reinforcement layer and with the carcass reinforcement, is an elastomeric mixture containing natural rubber or synthetic polyisoprene and a reinforcing filler imparting high cohesion thereto.
Description
technical field [0001] The present invention relates to tires with radial carcass reinforcement, in particular tires intended to equip vehicles carrying heavy loads traveling at sustained speeds, such as trucks, tractors, trailers, or buses. Background technique [0002] Usually, in tires of the heavy-duty type, the carcass reinforcement is anchored on either side in the bead area and is radially covered by a crown reinforcement consisting of at least two superimposed The layers are formed by threads or cords parallel in each layer and crossing from one layer to the next so as to form an angle with the circumferential direction of between 10° and 45°. Said working layer forming the working reinforcement may also be covered by at least one "protective" layer, advantageously formed by metallic and stretchable (called elastic) reinforcing elements. It may also comprise a layer of low-stretch metal threads or cords forming an angle between 45° and 90° with the circumferential d...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/36B60C9/08B60C9/12
CPCY10T152/10801C08K3/36B60C2009/2016B60C2009/0021B60C2009/0491B60C9/09B60C2009/2022B60C2009/0475B60C2001/0075B60C9/005B60C1/0041B60C9/20B60C9/04B60C2009/2019B60C2009/0071B60C2019/008C08L7/00
Inventor C·卡福S·诺埃尔J·贝松
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN