• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1. BUS FOR BUS TRUCKS, having a layer of radially arranged carcass yarns and a belt of three layers of steel cord yarns located in layers at an angle of 15-25 & to the circumferential direction of the tire, which is different from the fact that, in order to increase its service life and reduce the labor intensity, the cords of the second and third layers are parallel to one another from the carcass layer, and the density of these layers is 1.5-1 , 8 of the density of the yarn of the first layer, while the cord threads of the carcass layer are made of a material whose ratio of elastic modulus to tensile strength is 10-15. 2. A tire according to Claim 1, characterized in that the diameter of the threads of the cord of the second layer is less than the diameter of the threads of the cord of the first layer, 3. The tire according to Claims 1 and 2, that is, the diameter of the threads of the third layer is less than the diameter of the threads of the first layer sd eo: 4
    公开号:SU1158034A3
    申请号:SU792861262
    申请日:1979-12-25
    公开日:1985-05-23
    发明作者:Иноуе Терцо
    申请人:Дзе Тойо Раббер Индастри Ко,Лтд (Фирма)；
    IPC主号:
    专利说明:

    I The invention relates to the mud industry, in particular radial tire tires. A well-known tire for a truck and an auto bus, comprising a layer of radially disposed carcass yarns and a belt of three layers of steel cord yarns located in layers at an angle of 15-25 ° to the circumferential direction of tire 1. The disadvantages of the known construction are the large weight, the insufficient service life and the laboriousness of manufacturing the tire. The purpose of the invention is to increase the service life and reduce the complexity of manufacturing. The goal is achieved by the fact that the tire for the truck and the bus contains a layer of radially arranged carcasses and a breaker of three layers of steel cord thread located in layers at an angle of 15-25 to the tire circumferential direction, cord of the second and third layers from the frame is parallel to each other and the total density of the yarns of these layers is 1.5-1.8 of the density of the yarns of the first layer, and the 3TCW yarns of the cord of the skeleton layer are made of a material whose ratio of elastic modulus to tensile strength is 10-15. The diameter of the threads of the cord of the second layer may be less than the diameter of the threads of the code of the first layer. The diameter of the threads of the third layer may be less than the diameter of the threads of the first layer. Fig. 1 shows a tire, a cross section} in Fig. 2 a variant of the arrangement of the breaker; in fig. the same cross section. The truck and bus tire contains a frame 1 of a layer of radially arranged threads 2 and a breaker 3 of three layers of A-6 threads 7-9 of a steel cord located in layers at an angle of 15-25 to the circumferential direction of the tire. The yarns 8 and 9 of the cord of the second and third layers 5 and 6, counting from the skeleton layer, are parallel to each other, and their total density is 1.5-1.8 yards of the arrangement of the yarns of the 7th layer, while this thread 2 of the cord of the skeleton layer is made from the material, the ratio of the modulus of elasticity to the limit of 342 strength is 10-15. The diameter of the threads 8 of the cord of the second layer may be less than the diameter of the threads 7 of the cord of the first layer 4. In this case, the diameter of the threads 9 of the cord of the third layer 9 may be less than the diameter of the threads 7 of the cord of the first layer 4. They make breakers of three layers, the density the threads in which is 14 / 2.54 cm, the threads are located at an angle of 20 ° relative to the circumferential direction. For the carcass in each of the tested tires use a different cord material with a value of K 4,5-80. The tensile strength of the frame of each. The test tire is identical. The values of K and the corresponding cord materials of the frames are given in table. 1. Tests have shown that an increase in test tire P, which has a value of K in the range of 10-15, in the direction of the outer diameter of the tire and in the direction of the width of its cross-section is balanced. In addition, for each of the preliminaries of the tested tin, the change in the radius of curvature of the crown part of the tire at 5000 km of run in a room at a pressure of 7.25 kg / cm and a load of 2425 kg was measured. The test results are presented in Table. 2. As can be seen from the table. 2, in the test tire P, having a K value in the range of 10-15, the radius of curvature did not change after running, which reduces the possibility of uneven wear and increases the breaker durability. In addition, a weight reduction of approximately 7% is achieved. Tires are subject to danger of cutting through the tread with sharp stones or pieces of iron, etc., that lie in their path. In some cases, tire damage can also spread to steel cord threads in the breaker, which causes the steel cord to break. When a tire in this condition hits a large bump or stone, it is not able to withstand the considerable tensile forces acting on steel cords, and as a result, the tire breaks. In order to reduce the weight of the steel and simplify the process of fabrication, two layers of high-strength staped cord threads, located under the neck of 15-25 °, can be used in the breaker, so that the cord threads intersect with each other. In such a case, if the outer layer is cut, the strength of the scraper is significantly reduced, so that it is easy to break from impact. . Therefore, in an improved version of the design, the tire breaker is made in the form of a three-layer structure, while the cord yarns of the two outer layers (for example, the second and third layers, viewed from the frame) lie approximately parallel to each other. Thus, even if some of the cord threads are partially cut, the stresses can be perceived by other cord threads close to the cut zone, and a tire is obtained that has considerable resistance to shock. In tab. Figure 3 shows the results of testing tires with different numbers of layers in the belt and different angles of position for steel cord threads. The module in the direction of the tire circumference, which affects the durability of the tire breaker, is identical for each test. In each case, 5 cord threads are cut in the belter layer furthest from the center, while the cut part of the tire is squeezed by the plunger and the breaking energy is measured. Dn designate the location of the staple cord yarns in the breaker layers, the cord yarns of the first, second and third layers, taken from the side of the frame, are shown in Table. 3, respectively, 1, 2 and 3 are marked. The test tire IX, containing a breaker with a three-layer structure in which the cord yarns of the second and third layers are arranged parallel to each other, has the best resistance to rupture upon impact. In order to study the effect of the degree of density of the threads on the durability of the breaker — during the movement, the running drum is tested and the results are compared in the form of indices. In addition, for each tire, the destruction energy of the three layers as a whole is measured and the results are also compared as indices. The results are presented in table. 4. For each tire, the pressure is 7.25 kg / cm., A load of 180 Z standard (for example, 2700 kg 1.8), a speed of 50 km / h, and a drum diameter for testing is 1708 mm. yarns means the value obtained by dividing the sum of the densities of the steel cord by unit width in the second and third breaker layers by the density of the steel cord thread by unit width in the first breaker layer. From tab. 4 shows that a radial tire with high resistance to delamination and having a good durability can be obtained with a degree of yarn density in the range of 1.5-1.8, improving the diameter of cord threads in the second and third layers smaller than the diameter of cord threads in the first layer. Table 1 Cord material test Real nylon Nylon Polyester Rayon Kevlar (Dupont) Steel
    Frame material
    Table 2
    After running, mm run, mm
    Nylon 4.5480900
    Polyester13,08080480
    Artificial silk17,5480460
    Kevlar29,5480420
    Steel80.0480400
    The number of layers in the breaker
    Table 3
    Resistance Index (energy degradation)
    3 2 3
    3 3
    100 82
    148
    165 120
    1.3 0 1.22 0 1.22 0 1.22 2.0 0 1.22 0 1.00 0 1.00
    1.7 0 1.22 0 1.00 0 1.00
    .63 97
    94
    权利要求:
    Claims (3)
    [1]
    1. TIRES FOR BUS TRUCKS, having a layer of radially spaced carcass threads and a belt of three layers of steel cord threads located in layers at an angle of 15-25 ° to the tire circumferential direction, which, with the service and reducing the laboriousness of manufacturing, the second and second cord threads the third layers from the carcass layer are parallel to one another, and the total density of the filaments of these layers is 1.5-1.8 of the density of the filaments of the first layer, while the filament cords of the carcass layer are made of a material whose elastic modulus to ultimate strength It is equal to 10-15.
    [2]
    2. The tire according to claim 1, characterized in that the diameter of the threads of the cord of the second layer is less than the diameter of the threads of the cord of the first layer.
    [3]
    3. The tire according to claims 1 and 2, characterized in that the diameter of the threads is SU 1158034
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1158034A3|1985-05-23|Tyre for truck and autobus
    US4073330A|1978-02-14|Tire cord fabrics for belts of belted pneumatic tires
    US5743975A|1998-04-28|Radial medium truck tire with organic polymer reinforced top belt or breaker
    US5858137A|1999-01-12|Radial tires having at least two belt plies reinforced with steel monofilaments
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    US4518024A|1985-05-21|Pneumatic radial tire having an improved durability in the running on bad road
    US4340105A|1982-07-20|Heavy load tire with plural ply groups of different cord diameter
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    US3435875A|1969-04-01|Pneumatic tires
    CA1131553A|1982-09-14|Highly durable pneumatic tires
    CA1105818A|1981-07-28|Tire carcass structure
    US4142568A|1979-03-06|Bias tire with embedded wire breakers
    US20120067487A1|2012-03-22|Tires with high strength reinforcement
    IL31498A|1971-08-25|Filament reinforced structural ply for a pneumatic tire
    US11167594B2|2021-11-09|Belt structure for a tire
    EP0360588A2|1990-03-28|Radial Tyre for motor cycle
    CA2027733A1|1991-04-22|Radial tire
    US6041839A|2000-03-28|Metallic 4+3 cord for the reinforcement of elastomers
    US20120067490A1|2012-03-22|Tires with high strength reinforcement
    US3397729A|1968-08-20|Bias constructed truck tire
    US3630258A|1971-12-28|Tire having plies made of fiberglass and nylon
    同族专利:
    公开号 | 公开日
    IT7969471D0|1979-12-24|
    NL183987C|1989-03-16|
    FR2445237A1|1980-07-25|
    GB2040240B|1983-04-13|
    CA1119928A|1982-03-16|
    SE7910603L|1980-06-27|
    IT1119994B|1986-03-19|
    JPS5587604A|1980-07-02|
    NL183987B|1988-10-17|
    GB2040240A|1980-08-28|
    NL7909263A|1980-06-30|
    AU512950B2|1980-11-06|
    US4310043A|1982-01-12|
    FR2445237B1|1983-11-25|
    SE444410B|1986-04-14|
    DE2951253A1|1980-07-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR1018240A|1950-05-23|1952-12-30|Michelin Caoutchouc|Improvements to pneumatic tires|
    IT479133A|1951-03-21|
    FR1236260A|1958-09-17|1960-07-15|Dunlop Rubber Co|Improvements to pneumatic envelopes|
    FR489255A|1961-07-06|1919-01-11|Edward Bullock Webster|Mechanical device suitable for preventing the skidding of automobiles and for propelling boats, sleds, bicycles, or other vehicles, on ice or on water, as well as for other uses|
    FR1389428A|1963-07-19|1965-02-19|Pneumatiques, Caoutchouc Manufacture Et Plastiques Kleber Colombes|Heavy duty vehicle tire|
    US3245454A|1964-04-23|1966-04-12|Goodyear Tire & Rubber|Tire|
    NL6717027A|1967-02-08|1968-08-09|
    FR2138542B1|1971-05-27|1974-02-15|Michelin & Cie|
    BE792557A|1971-12-31|1973-06-12|Michelin & Cie|IMPROVEMENTS TO TIRE PACKAGES|
    BE795627A|1972-03-01|1973-08-20|Michelin & Cie|IMPROVEMENTS TO TIRE PACKAGES|
    US3850219A|1972-08-18|1974-11-26|Uniroyal Inc|Steel-belted radial ply tires with o{20 {0 textile cap hand|
    JPS507201A|1973-05-26|1975-01-24|
    DE2330478A1|1973-06-15|1974-12-19|Praschtschikin|Pneumatic radial tyre - with main breaker plies inserted between auxiliary plies|
    DE7322654U|1973-06-18|1973-09-20|Uniroyal Ag|AIR TIRES IN PARTICULAR FOR TRUCKS|
    US3989083A|1974-06-24|1976-11-02|The Goodyear Tire & Rubber Company|Tire with specially designed multiple carcass plies|
    JPS5424762B2|1974-09-18|1979-08-23|
    JPS5317204B2|1975-08-12|1978-06-07|
    JPS5628722B2|1975-10-02|1981-07-03|
    IT1054931B|1976-01-05|1981-11-30|Pirelli|IMPROVEMENT WITH RADIAL CARCASS TIRES|
    US4019551A|1976-01-23|1977-04-26|The Goodyear Tire & Rubber Company|Chipperless radial ply tire|
    JPS533841A|1976-07-01|1978-01-13|Sumitomo Electric Ind Ltd|Manufacture of image input element|
    NL169054C|1976-08-02|1982-06-01|Michelin & Cie|AIR TIRE FOR VEHICLES FOR THE TRANSPORT OF LARGE AND HEAVY LOADS IN GROUNDS OUTSIDE THE HARDENED ROADS.|
    JPS5638406B2|1977-03-31|1981-09-07|
    JPS5433408A|1977-08-17|1979-03-12|Toyo Tire & Rubber Co Ltd|Heavy duty radial tire|JPS6334044B2|1981-09-11|1988-07-07|Bridgestone Corp|
    JPH0534163B2|1983-04-27|1993-05-21|Bridgestone Corp|
    DE3580076D1|1984-08-29|1990-11-15|Sumitomo Rubber Ind|PLANE TIRES.|
    JPH0438601B2|1985-07-06|1992-06-25|
    JPS62194904A|1986-02-20|1987-08-27|Bridgestone Corp|Heavy duty pneumatic radial tire|
    JPS62283002A|1986-02-20|1987-12-08|Bridgestone Corp|Pneumatic radial tire for heavy load|
    JPH044163B2|1987-04-10|1992-01-27|
    FR2684605B1|1991-12-04|1994-01-28|Michelin Et Cie|RADIAL TIRE WITH A TOP FRAME COMPRISING DIFFERENT RESISTANCE PLATES.|
    US6112791A|1998-12-17|2000-09-05|Bridgestone/Firestone Research, Inc.|Pneumatic tire with band element having tapered end portions|
    CN1319761C|2001-12-03|2007-06-06|株式会社普利司通|Belt package and pneumatic tire|
    JP4041479B2|2004-08-06|2008-01-30|住友ゴム工業株式会社|Heavy duty tire|
    US7900425B2|2005-10-14|2011-03-08|Graham Packaging Company, L.P.|Method for handling a hot-filled container having a moveable portion to reduce a portion of a vacuum created therein|
    JP5205295B2|2009-01-22|2013-06-05|株式会社ブリヂストン|Pneumatic radial tire|
    DE102010061329A1|2010-12-17|2012-06-21|Continental Reifen Deutschland Gmbh|Vehicle tires|
    DE102010061330A1|2010-12-17|2012-06-21|Continental Reifen Deutschland Gmbh|Vehicle tires|
    FR3035026B1|2015-04-17|2017-03-31|Michelin & Cie|PNEUMATIC REINFORCING REINFORCEMENT|
    FR3035025B1|2015-04-17|2017-03-31|Michelin & Cie|PNEUMATIC REINFORCING REINFORCEMENT|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP16299678A|JPS5587604A|1978-12-26|1978-12-26|Radial tire|
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