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公开(公告)号：US20220105698A1
公开(公告)日：2022-04-07
申请号：US17549380
申请日：2021-12-13
申请人： PIRELLI TYRE S.P.A.
摘要： A carcass sleeve is situated in a radially external position with respect to a toroidal forming drum, arranged in a first radially contracted operative condition. The carcass sleeve is shaped according to a toroidal configuration while the forming drum is positioned inside the carcass sleeve. During shaping of the carcass sleeve, the forming drum is radially expanded up to a second radially expanded operative condition. Upon completed shaping, the carcass sleeve is coupled to the forming drum in the second operative condition. The forming drum, coupled to the shaped carcass sleeve, is arranged in proximity to at least one device for building at least one belt layer at a radially external position relative to the shaped carcass sleeve.
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公开(公告)号：US20200346423A1
公开(公告)日：2020-11-05
申请号：US16472406
申请日：2017-11-29
申请人： Pirelli Tyre S.p.A.
发明人： Davide Lupo CONTI , Bruno LODI , Gian Luigi BOSIO
IPC分类号： B29D30/00
摘要： A green tyre (2) for bicycles is built, comprising at least one carcass ply (4) having axially opposite end flaps (4a) engaged with respective bead cores (5) and a tread band (6) applied in a radially outer position around said at least one carcass ply (4). The green tyre (2) removed from the building drum, is profiled so as to translate the tread band (6) in a radially outer direction with respect to the bead cores (5), so as to impart a cross-sectional convex profile to the tyre (2) in a radially outer direction. The profiled tyre is engaged by means of a transfer member (31) while the tyre itself is mechanically restrained so as to maintain at least partly said cross-sectional convex profile in the radially outer direction.
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公开(公告)号：US20210324180A1
公开(公告)日：2021-10-21
申请号：US17271065
申请日：2018-08-29
申请人： Pirelli Tyre S.p.A.
摘要： The present disclosure relates to a tyre comprising a carcass structure, a tread band, a pair of sidewalls and at least one colored decorative element having a thickness equal to or greater than 200 μm applied by co-vulcanization on at least one side of the pair of sidewalls, wherein the pair of sidewalls comprises an elastomeric composition comprising (i) at least one diene elastomeric polymer, and (ii) an ozone protection system, and the at least one colored decorative element is made with a cross-linkable elastomeric composition comprising (i) 100 phr of elastomeric polymer comprising 30 phr to 70 phr of natural and/or synthetic isoprene rubber, and 30 phr to 70 phr of a rubber chosen from butyl rubber, halobutyl rubber, butadiene rubber, styrene-butadiene rubber, and mixtures thereof, and (ii) 5 phr to 120 phr of at least one reinforcement filler.
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公开(公告)号：US20210268757A1
公开(公告)日：2021-09-02
申请号：US17200480
申请日：2021-03-12
申请人： Pirelli Tyre S.p.A.
发明人： Davide Lupo CONTI , Bruno LODI , Gian Luigi BOSIO
摘要： A green tyre (2) for bicycles is built, comprising at least one carcass ply (4) having axially opposite end flaps (4a) engaged with respective bead cores (5) and a tread band (6) applied in a radially outer position around said at least one carcass ply (4). The built tyre (2) removed from the building drum, is profiled so as to translate the tread band (6) in a radially outer direction with respect to the bead cores (5), so as to impart a cross-sectional convex profile to the tyre (2) in a radially outer direction. The profiled tire is engaged by means of a transfer member (31) comprising a gripping device (30) which holds it hanging and loads it into a vulcanisation mould (101) by axially positioning an axial centreline plane (M) of the green tyre at an axial reference (51) arranged at a predetermined height along a reference axis (K) of a central body (103) of the vulcanisation mould (101).
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公开(公告)号：US20230124516A1
公开(公告)日：2023-04-20
申请号：US17817882
申请日：2022-08-05
申请人： Pirelli Tyre S.p.A.
发明人： Davide Lupo CONTI , Bruno LODI , Gian Luigi BOSIO
摘要： A green tyre (2) for bicycles is built, comprising at least one carcass ply (4) having axially opposite end flaps (4a) engaged with respective bead cores (5) and a tread band (6) applied in a radially outer position around said at least one carcass ply (4). The built tyre (2) removed from the building drum, is profiled so as to translate the tread band (6) in a radially outer direction with respect to the bead cores (5), so as to impart a cross-sectional convex profile to the tyre (2) in a radially outer direction. The profiled tyre is engaged by means of a transfer member (31) comprising a gripping device (30) which retains it at the radially outer surface (2b) so as to maintain said cross-sectional convex profile in a radially outer direction.
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公开(公告)号：US20220332068A1
公开(公告)日：2022-10-20
申请号：US17809834
申请日：2022-06-29
申请人： PIRELLI TYRE S.p.A.
发明人： Davide Lupo CONTI , Bruno LODI , Gian Luigi BOSIO
摘要： A green tyre (2) for bicycles is built, comprising at least one carcass ply (4) having axially opposite end flaps (4a) engaged with respective bead cores (5) and a tread band (6) applied in a radially outer position around said at least one carcass ply (4). The green tyre (2) removed from the building drum, is profiled so as to translate the tread band (6) in a radially outer direction with respect to the bead cores (5), so as to impart a cross-sectional convex profile to the tyre (2) in a radially outer direction. The profiled tyre is engaged by means of a transfer member (31) while the tyre itself is mechanically restrained so as to maintain at least partly said cross-sectional convex profile in the radially outer direction.
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公开(公告)号：US20200247075A1
公开(公告)日：2020-08-06
申请号：US16836545
申请日：2020-03-31
申请人： PIRELLI TYRE S.P.A.
摘要： A carcass sleeve is situated in a radially external position with respect to a toroidal forming drum, arranged in a first radially contracted operative condition. The carcass sleeve is shaped according to a toroidal configuration while the forming drum is positioned inside the carcass sleeve. During shaping of the carcass sleeve, the forming drum is radially expanded up to a second radially expanded operative condition. Upon completed shaping, the carcass sleeve is coupled to the forming drum in the second operative condition. The forming drum, coupled to the shaped carcass sleeve, is arranged in proximity to at least one device for building at least one belt layer at a radially external position relative to the shaped carcass sleeve.
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公开(公告)号：US20220305749A1
公开(公告)日：2022-09-29
申请号：US17595684
申请日：2020-05-29
申请人： Pirelli Tyre S.p.A.
发明人： Pier Luigi DE CANCELLIS , Alfredo BALINI , Oscar MAZZOCCHI , Lorenzo AVANZINI , Davide Lupo CONTI
摘要： In the production of tyres for vehicle wheels in which at least one colored label (200) is provided on at least one of the sidewalls of the tyre, a green tyre is arranged inside a vulcanization mold comprising a first half-shell (50), a second half-shell opposite to the first half-shell (50) and a crown of circumferential sectors configured to air-tightly couple with the first half-shell (50) and with the second half-shell when the vulcanization mold is closed. Each label (200) comprises a layer of colored cross-linkable elastomeric material. Each label (200) is arranged in a predetermined position on a first support surface (50a) defined in at least one of the aforementioned first and second half-shell. The green tyre is arranged inside the vulcanization mold so that one of the sidewalls of the green tyre rests on such a support surface (50a). The mold is then closed and the co-vulcanization of the green tyre and of the label(s) (200) inside the vulcanization mold starts, holding in position the labels (200) on the first support surface (50a) during at least one initial part of the vulcanization.
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公开(公告)号：US20210129470A1
公开(公告)日：2021-05-06
申请号：US16472755
申请日：2017-11-29
申请人： Pirelli Tyre S.p.A.
发明人： Davide Lupo CONTI , Bruno LODI , Gian Luigi BOSIO
摘要： A green tyre (2) for bicycles is built, comprising at least one carcass ply (4) having axially opposite end flaps (4a) engaged with respective bead cores (5) and a tread band (6) applied in a radially outer position around said at least one carcass ply (4). The built tyre (2) removed from the building drum, is profiled so as to translate the tread band (6) in a radially outer direction with respect to the bead cores (5), so as to impart a cross-sectional convex profile to the tyre (2) in a radially outer direction. The profiled tyre is engaged by means of a transfer member (31) comprising a gripping device (30) which retains it at the radially outer surface (2b) so as to maintain said cross-sectional convex profile in a radially outer direction.
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10.发明申请公开(公告)号：US20190084257A1
公开(公告)日：2019-03-21
申请号：US15763014
申请日：2016-09-29
申请人： Pirelli Tyre S.p.A.
摘要： Method for controlling the feed of semifinished products in a tyre building process, said method comprising: feeding a semifinished product (10) into a building station (30) adapted to build, through said semifinished product (10), a structural component of a tyre; performing, in an acquisition zone (AZ), a verification to verify the presence of at least one defect of said semifinished product (10); generating a notification signal (NS) as a function of said verification; activating, as a function of said notification signal (NS), a discard device (60), configured for discarding at least one portion of said semifinished product (10) comprising said at least one defect.
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