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公开(公告)号：US10960625B2
公开(公告)日：2021-03-30
申请号：US14908174
申请日：2014-07-23
IPC分类号： B29D30/24 , B29D30/36 , B29D30/26 , B29K105/00
摘要： A drum for producing a tire casing blank comprises a support and sectors forming a circumferential face of the drum.
Each sector has a circumferential outer face having a contour of general trapezoidal form and is mounted so as to be movable relative to the support in a non-radial predetermined direction relative to an axis of rotation of the drum and intercepting this axis.-
公开(公告)号：US10953700B2
公开(公告)日：2021-03-23
申请号：US15115357
申请日：2015-02-02
发明人： Maxime Rolland , Fabien Marlier , Ronald Cress , Ralston Moore
摘要： The tread has a total axial width W and a wearable thickness PMU of material and has at least four grooves on each side of a midplane that divides the tread axially into two parts. The grooves divide the tread into a middle, intermediate and edge regions 6. The middle region has an axial width Lm of at least 30% and at most 60% of the total width W. The total volume void ratio when new is less than 17%, and the middle region has a volume void ratio that is less than half the total volume void ratio. The middle region comprises a plurality of transverse sipes opening into the grooves, and the sipes have depths at least equal to 75% of the depth of the grooves. The number of transverse sipes in the middle region is greater than the number of transverse sipes on each intermediate or edge region.
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公开(公告)号：US10730255B2
公开(公告)日：2020-08-04
申请号：US15310672
申请日：2015-05-07
IPC分类号： B29C73/18 , B29C48/92 , B29C48/625 , B29C73/16 , B29C48/155 , B29D30/06 , B29C48/25 , B29K9/00 , B29L30/00
摘要： The process includes a non-crosslinked self-sealing composition which is introduced into an extrusion means, the geometric and thermodynamic characteristics of which have been specially adapted. The speed and temperature conditions of the extrusion means are adjusted so that, at an application nozzle forming the outlet die of the extrusion means, the self-sealing composition is crosslinked. The application nozzle is brought close to the internal surface of the casing previously set in relative motion with respect to the application nozzle, and an extruded and crosslinked bead that has a given width and profile is deposited directly on the internal surface of the casing.
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公开(公告)号：US10688562B2
公开(公告)日：2020-06-23
申请号：US15537235
申请日：2015-12-16
摘要： The disclosure relates to a selective laser sintering method of manufacturing a tread molding element, said tread molding element including at least a fine lamella adapted to mold a shallow sipe in a tire tread, the fine lamella having a length (L2). The fine lamella is sintered in a plurality of portions (p2) at different layers (N), in each layer (N) the laser beam sinters the portion (p2) of the fine lamella in only one passage in the length (L2) of the fine lamella without round-trip passage of the laser beam, the direction (D1) of this passage being the same at the different layers (N) for building the different portions (p2) of the fine lamella. The thickness (w) of the fine lamella is smaller than 0.2 mm, and the height (h) of the fine lamella is smaller than or equal to 2 mm.
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公开(公告)号：US10654322B2
公开(公告)日：2020-05-19
申请号：US15533849
申请日：2015-12-04
发明人： Marc Francia , Yves Potin , Florian Vilcot
摘要： Each of at least two layers of a carcass reinforcement has a breaking force per unit width higher than 2250 daN/dm. The minimum strength per unit width, measured for an elongation of less than 10%, of a second layer of carcass reinforcement is strictly greater than a value equal to 20% of the minimum strength per unit width, measured for an elongation of less than 10%, of a first layer of carcass reinforcement. The reinforcing elements of the two layers of carcass reinforcement have a thread count of less than 750 tex. The elongation of the reinforcing elements of the second layer of carcass reinforcement is greater than 4% under a force of 20 daN, and the secant elastic modulus values under tension at 10% elongation, Mt, Mj, satisfy the relationship Mt/Mj≥1.
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公开(公告)号：US10525774B2
公开(公告)日：2020-01-07
申请号：US13879966
申请日：2011-10-20
申请人： Hichem Rehab , Alain Domingo
发明人： Hichem Rehab , Alain Domingo
摘要： The invention relates to a tire with radial carcass reinforcement, made up of at least one layer of metal reinforcing elements, the said tire comprising a crown reinforcement, itself radially capped by a tread, the said tread being connected to two beads via two side walls, the said tire comprising a first layer of polymer compound radially between the carcass reinforcement and the radially innermost layer of reinforcing elements of the crown reinforcement. According to the invention, the said first layer of polymer compound constitutes a buffer zone designed to trap oxygen on the outside of the said first layer, the axial width of the said first layer being at least equal to 70% of the width of the radially innermost layer of reinforcing elements of the crown reinforcement.
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公开(公告)号：US10471775B2
公开(公告)日：2019-11-12
申请号：US13992433
申请日：2011-12-05
申请人： Sébastien Fugier , Béatrice Lopez
发明人： Sébastien Fugier , Béatrice Lopez
摘要： An asymmetric tread for a snow tire comprising a rubber composition, comprising a tread surface intended to be in contact with the ground when the tire is running, and comprising a sequence of basic patterns arranged in the circumferential direction, each extending over at least 80% of the width (W) of the tread, each comprising a plurality of raised elements provided with sipes opening onto the tread surface, each sipe having a width of less than 1 mm and a depth of at least 3 mm. For each basic pattern, a sipes orientation level (NO) is defined that corresponds to ∑ i li * α i P * Wm where i is the number of sipes in the pattern, li is the length of the ith sipe on the tread surface, P is the pitch of the basic pattern, Wm is the width of the basic pattern and αi is the positive or negative angle formed on the tread surface by the ith sipe with the transverse direction, where |αi|≤45 degrees, said orientation level being greater than or equal to 1.5 degrees/mm. The rubber composition comprises at least one diene elastomer, a reinforcing inorganic filler, and a plasticizing system comprising a liquid plasticizing agent being a vegetable oil in a content B of between 10 and 60 phr.
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公开(公告)号：US10427476B2
公开(公告)日：2019-10-01
申请号：US14408387
申请日：2013-06-13
发明人： Patricia Lagarde , David Lavialle
摘要： A tire which is intended to bear heavy loads and the endurance of which is improved. The tire contains, in the bead region, at least one internal annular insert, the said insert having a rubber composition containing a polyisoprene elastomer, between 45 phr and 60 phr of a reinforcing filler containing from 43 to 55 phr of a reinforcing inorganic filler with a BET specific surface of between 155 and 185 m2/g, and a coupling agent for bonding the reinforcing inorganic filler to the elastomer.
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公开(公告)号：US10414212B2
公开(公告)日：2019-09-17
申请号：US15034451
申请日：2014-11-05
发明人： Matthieu Bonnamour , Benoit Durand-Gasselin , Serge Lefebvre , Mathieu Vandaele , Kazutaka Yokokawa
摘要： The aspects disclosed herein relate to a tread for a tire including at least one block of rubbery material of width W and length L with L»W. This block extends in a circumferential direction (X) when the tread is mounted on the tire, the block including a contact surface intended to come into contact with the ground and a first lateral wall and a second lateral wall delimiting this contact surface. The block further includes a plurality of sipes opening onto the contact surface of the block, with each sipe extending over the contact surface in an oblique direction opening onto the first lateral wall and onto the second lateral wall, the sipes of the block being oriented in the same direction. The sipes are distributed over the contact surface of the block in such a way that when one sipe reaches the second lateral wall another sipe starts out from the first lateral wall at the same circumferential level (N) on the block, and each sipe includes at least two parts.
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公开(公告)号：US10414132B2
公开(公告)日：2019-09-17
申请号：US15533916
申请日：2015-11-23
摘要： An elastomeric laminate is provided. The elastomeric laminate comprises a layer A consisting of a diene rubber composition, a layer B comprising a highly unsaturated diene elastomer B, n layers Ci arranged between the layer A and the layer B, n being an integer ≥2, i being an integer ranging from 1 to n, the layer C1 being arranged between the layer A and the layer C2, the layer Cn being arranged between the layer B and the layer Cn−1, the layer Ci being arranged between the layer Ci−1 and the layer Ci+1 for values of i ranging from 2 to n−1 when n>2. Such a laminate has good resistance to separation of the layers which constitute it.
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