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公开(公告)号：EP4234272A2
公开(公告)日：2023-08-30
申请号：EP23171618.4
申请日：2020-12-15
发明人： COCCON, Marco Nicolo , PASSANTE SPACCAPIETRA, Ettore , MANOGARAN, Arun Prasath , MULLER, Philippe Joseph Auguste
IPC分类号： B60C9/28
摘要： A pneumatic tire, preferably a pneumatic truck tire, comprising a tread, a carcass (18) and a belt package (40) interposed between the carcass (18) and the tread is disclosed. The belt package (40) includes a first working belt (41, 110), wherein the first working belt (41, 110) is the radially innermost belt and is the axially widest belt of the belt package (40), The belt package (40) further includes a relatively low angle belt (43, 120) located radially outward of the first working belt (41, 110) and comprising parallel reinforcement elements angled at an angle of less than 10 degrees with respect to the circumferential direction of the tire (10, 100). The relatively low angle belt (43, 120) is formed of a spirally wound strip comprising reinforcement cords. The relatively low angle belt (43, 120) is formed of a central portion (124) wherein the strips comprising the reinforcement cords are not overlapped, and an axially outer portion (122), preferably on each axially outer side of the central portion (120), wherein the strips comprising the reinforcement cords are overlapped. The reinforcement elements of the relatively low angle belt (43, 120) are extensible and/or the belt package (40) further includes a second working belt (45, 130) that is located radially outward of the relatively low angle belt (43, 120), the second working belt (45, 130) having a first lateral end section (46) and a second lateral end section (50).
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公开(公告)号：EP4197814A1
公开(公告)日：2023-06-21
申请号：EP22213039.5
申请日：2022-12-13
发明人： PASSANTE SPACCAPIETRA, Ettore , JOUBERT, Paul Benoit , KRIER, Roland Willibrord , MANOGARAN, Arun Prasath , CAMBRON, Anne-France Gabrielle Jeanne-Marie , SAAVEDRA, Kevin Rafael
摘要： A pneumatic tire (10) for use on trucks is disclosed. The tire has a tread (12), sidewalls, a carcass, a pair of beads, and a belt structure (50) located radially inward of the tread (12). The belt structure (50) comprises a first working belt (54) and a second working belt (56) , the first working belt (54) being located radially inward of the second working belt (56), wherein the angle of the first and second working belts (54, 56) range from 10 degrees to 50 degrees from the circumferential direction, wherein a zigzag belt (58) or a relatively low angle belt (70) is located radially inward of the first working belt (54) or between the first working belt (54) and the second working belt (56), and wherein a rubber spacer layer (60, 80) is located between the zigzag belt (58) and the carcass of the tire (10) or between the first working belt (54) and the carcass of the tire (10).
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公开(公告)号：EP4011647A1
公开(公告)日：2022-06-15
申请号：EP21211335.1
申请日：2021-11-30
发明人： MULLER, Philippe Joseph Auguste , PASSANTE SPACCAPIETRA, Ettore , WINKIN, Didier , GERARD, Denis , MANOGARAN, Arun Prasath
摘要： A pneumatic tire for use on trucks is disclosed. The tire (10) comprises a tread (12) and a belt structure (50) located radially inward of the tread (12). The belt structure (50) includes a first working belt (54) and a second working belt (56), wherein the angle of the first and second working belts (54, 56) range from 10 degrees to 50 degrees as measured relative to the circumferential direction of the tire (10). The belt structure (50) further comprises a relatively low angle belt (58) having extensible reinforcement cords angled at less than 5 degrees relative to the circumferential direction of the tire (10). The tread (12) comprises at least one groove (34, 35, 36) reinforced with a tread compound having (i) a tensile strength at break greater than 18 MPa and an elongation at break greater than 450%, when measured at 23°C, and/or (ii) a tensile strength at break greater than 12 MPa and an elongation at break greater than 600%, when measured at 100°C.
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公开(公告)号：EP3838619A1
公开(公告)日：2021-06-23
申请号：EP20214117.2
申请日：2020-12-15
发明人： COCCON, Marco Nicolo , PASSANTE SPACCAPIETRA, Ettore , MANOGARAN, Arun Prasath , MULLER, Philippe Joseph Auguste
摘要： A pneumatic tire, preferably a pneumatic truck tire, is disclosed. The tire (10, 100) comprises a belt package (40) interposed between the carcass (18) and the tread. The belt package (40) includes a first working belt (41, 110), wherein the first working belt (41) is the radially innermost belt and the axially widest belt of the belt package (40). The belt package (40) further includes a relatively low angle belt (43, 120) located radially outward of the first working belt (41, 110) and comprising parallel reinforcement elements angled at an angle of less than 10 degrees with respect to the circumferential direction of the tire (10, 100). The belt package (40) further includes a second working belt (45, 130) that is located radially outward of the relatively low angle belt (43, 120), wherein the second working belt (45, 130) has a first lateral end section (46) and a second lateral end section (50), wherein a first lateral belt (48) is located axially adjacent or axially outward the first lateral end section (46) of the second working belt (45, 130), and wherein a second lateral belt (52) is located axially adjacent or axially outward the second lateral end section (50) of the second working belt (45, 130). Also, a pneumatic tire is disclosed comprising a belt package (40) interposed between the carcass (18) and the tread, wherein the belt package (40) includes a first working belt (41, 110), wherein the first working belt (41, 110) is the radially innermost belt and is the axially widest belt of the belt package (40), wherein the belt package (40) further includes a relatively low angle belt (43, 120) located radially outward of the first working belt (41, 110) and comprising parallel reinforcement elements angled at an angle of less than 10 degrees with respect to the circumferential direction of the tire (10, 100), wherein the relatively low angle belt (43, 120) is formed of a spirally wound strip comprising reinforcement cords, and wherein the relatively low angle belt (43, 120) is formed of a central portion (124) wherein the strips comprising the reinforcement cords are not overlapped, and an axially outer portion (122), preferably on each axially outer side of the central portion (120), wherein the strips comprising the reinforcement cords are overlapped.
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公开(公告)号：EP4234272A3
公开(公告)日：2023-10-11
申请号：EP23171618.4
申请日：2020-12-15
发明人： COCCON, Marco Nicolo , PASSANTE SPACCAPIETRA, Ettore , MANOGARAN, Arun Prasath , MULLER, Philippe Joseph Auguste
摘要： A pneumatic tire, preferably a pneumatic truck tire, comprising a tread, a carcass (18) and a belt package (40) interposed between the carcass (18) and the tread is disclosed. The belt package (40) includes a first working belt (41, 110), wherein the first working belt (41, 110) is the radially innermost belt and is the axially widest belt of the belt package (40), The belt package (40) further includes a relatively low angle belt (43, 120) located radially outward of the first working belt (41, 110) and comprising parallel reinforcement elements angled at an angle of less than 10 degrees with respect to the circumferential direction of the tire (10, 100). The relatively low angle belt (43, 120) is formed of a spirally wound strip comprising reinforcement cords. The relatively low angle belt (43, 120) is formed of a central portion (124) wherein the strips comprising the reinforcement cords are not overlapped, and an axially outer portion (122), preferably on each axially outer side of the central portion (120), wherein the strips comprising the reinforcement cords are overlapped. The reinforcement elements of the relatively low angle belt (43, 120) are extensible and/or the belt package (40) further includes a second working belt (45, 130) that is located radially outward of the relatively low angle belt (43, 120), the second working belt (45, 130) having a first lateral end section (46) and a second lateral end section (50).
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公开(公告)号：EP4144539A1
公开(公告)日：2023-03-08
申请号：EP22193017.5
申请日：2022-08-30
发明人： PASSANTE SPACCAPIETRA, Ettore , MULLER, Philippe Joseph Auguste , COCCON, Marco Nicolo , MANOGARAN, Arun Prasath
摘要： A pneumatic tire (10) for use on truck is disclosed. The tire (10) comprises a tread (12) and a belt structure (50) located radially inward of the tread (12). The belt structure (50) includes a pair of working belts (54, 56). The working belts (54, 56) are reinforced plies each comprising parallel reinforcement elements. The angle of the reinforcement elements in the respective working belt (54, 56) ranges from 12 degrees to 35 degrees with respect to the circumferential direction. The belt structure (50) further includes a relatively low angle belt (58) preferably positioned radially between the working belts (54, 56), the relatively low angle belt (58) comprising parallel reinforcement elements angled at less than 5 degrees, preferably less than 2 degrees, with respect to the circumferential direction. The relatively low angle belt (58) has folded belt edges (62) forming a first and second narrow belt (63) at the lateral ends of the relatively low angle belt (58). The first and second narrow belt (63) are each positioned radially inward of and each at least partially extend axially under a respective axially outermost groove (36) on each respective lateral side of the tread (12).
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公开(公告)号：EP4011646A1
公开(公告)日：2022-06-15
申请号：EP21211320.3
申请日：2021-11-30
发明人： MULLER, Philippe Joseph Auguste , PASSANTE SPACCAPIETRA, Ettore , GERARD, Denis , WINKIN, Didier , MANOGARAN, Arun Prasath
摘要： A pneumatic tire for use on trucks is disclosed. The tire (10) comprises a tread (12) and a belt structure (50) located radially inward of the tread (12). The belt structure (50) includes a first working belt (54) and a second working belt (56), wherein the angle of the first and second working belts (54, 56) range from 10 degrees to 50 degrees as measured relative to the circumferential direction of the tire (10). The belt structure (50) further comprises a relatively low angle belt (58) having extensible reinforcement cords angled at less than 5 degrees relative to the circumferential direction of the tire (10). The tread (12) comprises a tread compound having (i) a tensile strength at break greater than 18 MPa and an elongation at break greater than 450%, when measured at 23°C, and/or (ii) a tensile strength at break greater than 12 MPa and an elongation at break greater than 600%, when measured at 100°C.
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公开(公告)号：EP3960496A1
公开(公告)日：2022-03-02
申请号：EP21194156.2
申请日：2021-08-31
发明人： MANOGARAN, Arun Prasath , LIONETTI, Robert Edward , COCCON, Marco Nicolo , PASSANTE SPACCAPIETRA, Ettore , MULLER, Philippe Joseph Auguste , WINKIN, Didier , NAWALE, Vaibhav , KRIER, Roland Willibrord
IPC分类号： B60C9/20
摘要： A pneumatic tire (10) is disclosed. The tire (10) comprises a tread (12) and a belt reinforcement structure (50) located radially inward of the tread (12). The belt reinforcement structure (50) includes a first working belt (54) comprising cords or wire and a second working belt (56) comprising cords or wire. The angles of the cords of the wire in the first and second working belts (54, 56) range from +/- 12 degrees to +/-36 degrees with respect to the circumferential direction. The belt reinforcement structure (50) further comprises a relatively low angle belt (58) comprising cords or wire angled at an angle of less than +/- 5 degrees with respect to the circumferential direction. It further includes a protector belt (62) located radially outwards of the first and second working belt (54, 56). The protector belt (62) comprises cords or wire having an energy absorption of more than 7.5 J/mm 2 .
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公开(公告)号：EP3838623A1
公开(公告)日：2021-06-23
申请号：EP20214125.5
申请日：2020-12-15
发明人： PASSANTE SPACCAPIETRA, Ettore , MULLER, Philippe Joseph Auguste , WINKIN, Didier , COCCON, Marco Nicolo , MANOGARAN, Arun Prasath , KRIER, Roland Willibrord , NAWALE, Vaibhav
IPC分类号： B60C9/20
摘要： A pneumatic tire (10) is disclosed comprising a tread (12) and a belt package (50) located radially inward of the tread (12). The belt package (50) includes a pair of working belts (54, 56), wherein the working belts (54, 56) are reinforced plies each comprising parallel reinforcement elements, wherein the angle of the reinforcement elements in the respective working belt (54, 56) is in a range of from 12 degrees to 35 degrees with respect to the circumferential direction. The belt package (50) includes a further belt (58) positioned between the working belts (54, 56), said further belt (58) comprising parallel reinforcement elements angled in a range of from 5 degrees to 0 degree with respect to the circumferential direction. Finally, there is a split belt formed of a first split belt structure and second split belt structure (62), wherein the first and second split belt structure (62) are each positioned radially inward of an axially outermost groove (36) on each side of the tread (12) and each extend at least partially below said axially outermost groove (36) on each side of the tread (12).
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公开(公告)号：EP4215384A1
公开(公告)日：2023-07-26
申请号：EP23156172.1
申请日：2020-12-15
发明人： PASSANTE SPACCAPIETRA, Ettore , MULLER, Philippe Joseph Auguste , WINKIN, Didier , COCCON, Marco Nicolo , MANOGARAN, Arun Prasath , KRIER, Roland Willibrord , NAWALE, Vaibhav
IPC分类号： B60C9/20
摘要： A pneumatic tire (10) is disclosed comprising a tread (12) and a belt package (50) located radially inward of the tread (12). The belt package (50) includes a pair of working belts (54, 56), wherein the working belts (54, 56) are reinforced plies each comprising parallel reinforcement elements, wherein the angle of the reinforcement elements in the respective working belt (54, 56) is in a range of from 12 degrees to 35 degrees with respect to the circumferential direction. The belt package (50) includes a further belt (58) positioned between the working belts (54, 56), said further belt (58) comprising parallel reinforcement elements angled in a range of from 5 degrees to 0 degree with respect to the circumferential direction. Finally, there is a split belt formed of a first split belt structure and second split belt structure (62), wherein the first and second split belt structure (62) are each positioned radially inward of an axially outermost groove (36) on each side of the tread (12) and each extend at least partially below said axially outermost groove (36) on each side of the tread (12). The reinforcement elements in the working belts (54, 56) have an elongation at 10% of the breaking load greater than 0.4 % when measured at reinforcement elements extracted from a cured tire.
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