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公开(公告)号：US20210070000A1
公开(公告)日：2021-03-11
申请号：US16771901
申请日：2018-11-28
发明人： Pierre CHIGROS , Damien Bardin
IPC分类号： B29D30/06
摘要： The present invention relates to a set of mould elements comprising main blades and secondary blades, intended to be added to a mould for vulcanizing a tread of a tyre, said mould elements being capable of moulding cuts in the tread, characterized in that a main blade comprises at least one assembly means for assembling a secondary blade, said assembly means comprising two series of at least one protrusion arranged facing one another. It is thus possible to ensure a relative positioning and an assembly that can withstand mechanical stresses over the entire height of the blade during moulding/demoulding, while minimizing the volume of material added. This assembly is barely visible on the tyre.
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公开(公告)号：US10369846B2
公开(公告)日：2019-08-06
申请号：US15115968
申请日：2015-02-02
摘要： The tread has a total width W and two main grooves. The main grooves divide the tread into a middle region and edge regions. The middle region has an axial width Lm that is 45% to 70% of the total width W. The volume void ratio of the tread when new is less than 17%. An internal surface extends parallel to the tread surface when new and is in contact radially with the innermost points of the deepest main grooves. The middle part has a plurality of transverse sipes, each of which has a depth at least equal to the depth of the main grooves. The transverse sipes open into the main grooves. The middle region has a volume void ratio when new that is less than half the total volume void ratio of the tread, and at least one circumferential channel appears when the tread becomes part worn.
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公开(公告)号：US20150273950A1
公开(公告)日：2015-10-01
申请号：US14428156
申请日：2013-09-09
发明人： Vincent Martin , Damien Bardin , Catherine Houis
CPC分类号： B60C11/0323 , B60C11/0306 , B60C11/032 , B60C11/1236 , B60C11/1281 , B60C2011/0346 , B60C2011/0348 , B60C2011/1213 , B60C2011/1245
摘要： Tread for heavy vehicle tire, this tread having a tread surface in the new state, this tread comprising a plurality of cuts opening onto the tread surface in the new state and at least one channel internal to the tread, this channel being intended to form a new groove after the tread has partially worn away, furthermore, each channel is extended radially towards the tread surface by a sipe of the same orientation as said channel and of width L4, and in addition a plurality of sipes of width L3 intersect the sipe extending each channel to form a well, this well opening both onto the tread surface in the new state and into a channel, the tread according to the invention being such that, for at least for a plurality of wells (each well has—in a direction extending from the tread surface towards the channel, at least one maximum-section part and one reduced-section part, the reduced-section part having a cross-sectional area smaller than the cross-sectional area of the maximum-section part so as to limit the ingress of foreign bodies of determined dimensions into this well and, from there, into a channel.
摘要翻译： 重型车辆胎面的胎面，该胎面具有处于新状态的胎面表面，该胎面包括在新状态下开口于胎面表面上的多个切口以及胎面内部的至少一个通道，该通道旨在形成 胎面部分磨损后的新的凹槽，此外，通过与所述通道和宽度L4相同的定向的刀槽花纹，每个通道径向延伸到胎面表面，此外，宽度为L3的多个刀槽花纹与刀槽花纹延伸 每个通道以形成井，该井在新状态下在胎面表面上开口并进入通道，根据本发明的胎面使得至少对于多个井（每个井具有沿着一个方向 从胎面表面向通道延伸，至少一个最大截面部分和一个缩径部分，所述截面部分的横截面面积小于最大截面积的横截面面积 以限制将确定尺寸的异物进入该井，并从那里进入通道。
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公开(公告)号：US11865868B2
公开(公告)日：2024-01-09
申请号：US17416339
申请日：2019-12-11
发明人： Damien Bardin , Romain Berthier , Fabien Marlier
IPC分类号： B60C11/03
CPC分类号： B60C11/0323 , B60C2011/0381 , B60C2200/06
摘要： Tread for heavy-duty vehicle tire, having tread surface in the new state, having a first volume of cavities opening onto the tread surface, a second volume of cavities formed entirely under the tread surface and having at least one channel of height Hc delimited by two main walls spaced apart from one another by a width Lc and connected together by a lower part and by an upper part, this channel intended to form, after partial wear corresponding to a thickness Lu, an additional groove, such that each channel has a plurality of extensions forming cavities extending between this channel and the tread surface over a height He at least equal to 20% and at most equal to 75% of the thickness Lu, each extension opening at least into the upper part of the channel through an opening having a cross-sectional area Sa at least equal to 0.8*(Hc*Lc).
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公开(公告)号：US11090888B2
公开(公告)日：2021-08-17
申请号：US16768438
申请日：2018-11-27
发明人： Pierre Chigros , Damien Bardin
摘要： A set (1) of moulding elements intended to be added to a mould comprise a main moulding element (10) and a secondary moulding element (20) comprising an edge (21), said main moulding element (10) comprising a contact zone (11) adapted to be in contact with all or part of the edge (21) of the secondary element, said contact zone (11) not being flat, and the edge (21) of said secondary moulding element (20) comprising at least one recessed portion (22) complementary to the non-flat contact zone (11) of the main element.
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公开(公告)号：USD821301S1
公开(公告)日：2018-06-26
申请号：US29601017
申请日：2017-04-18
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公开(公告)号：US11760134B2
公开(公告)日：2023-09-19
申请号：US16757728
申请日：2018-10-31
发明人： Damien Bardin
CPC分类号： B60C11/0323 , B60C11/125 , B60C11/1369 , B60C2011/1338
摘要： Tread (1) for a heavy-duty vehicle tire having, when new, a tread surface (10), with at least one evolving cut (2) comprising a part (22) hidden inside the tread which is delimited by opposing walls (221, 222) distant from one another by a maximum width Lc. The part (22) being extended towards the tread surface (10) by a sipe (21), opening into the hidden part (22) to be offset from one of the walls (221, 222) delimiting the hidden part to form a bridge situated radially over said hidden part (22). The tread having a plurality of grooves (4) open when new onto the tread surface (10), these grooves (4) opening into an evolving cut (2) to form a connecting region (41), the tread (1) further comprising, in at least 50% of the connecting regions (41, 42), a protuberance (5) extending over the entire height Hc of the hidden part (22) and over a maximum thickness Ep so as to act as a support for the bridge (211) situated radially over the hidden part (22) in the connecting region (41).
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公开(公告)号：US11345103B2
公开(公告)日：2022-05-31
申请号：US16771901
申请日：2018-11-28
发明人： Pierre Chigros , Damien Bardin
IPC分类号： B29D30/06
摘要： The present invention relates to a set of mould elements comprising main blades and secondary blades, intended to be added to a mould for vulcanizing a tread of a tire, the mould elements being capable of moulding cuts in the tread, characterized in that a main blade comprises at least one assembly device for assembling a secondary blade, the assembly device comprising two series of at least one protrusion arranged facing one another. It is thus possible to ensure a relative positioning and an assembly that can withstand mechanical stresses over the entire height of the blade during moulding/demoulding, while minimizing the volume of material added. This assembly is barely visible on the tire.
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公开(公告)号：US10377183B2
公开(公告)日：2019-08-13
申请号：US15100839
申请日：2014-11-27
摘要： The tread includes over at least a first axial part (M) at least one wavy groove in a first direction and wavy grooves in a second direction. The wavy grooves in the second direction are connected to the wavy groove in the first direction. Over at least a second axial part (B) of the tread, at least one wavy groove continuous in a third direction, and wavy grooves continue in a fourth direction. The wavy grooves in the fourth direction are connected to the wavy groove in the third direction. When new, the open parts of the first axial part (M) are connected to one another, and the open parts of the second axial part (B) are not connected with one another. Beyond a part-wear condition, the open parts of the second axial part (B) are connected to one another, and the open parts of the first axial part (M) are not connected with one another.
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