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公开(公告)号：US12049025B2
公开(公告)日：2024-07-30
申请号：US18526066
申请日：2023-12-01
Applicant: The Goodyear Tire & Rubber Company
Inventor： David Charles Jacques Robert Laurent , Jean-Philippe Aloyse Henri Sander , Antoine Francois Regnier
CPC classification number: B29C33/3842 , B29D30/0606 , B33Y10/00 , B33Y80/00 , B29D2030/0613 , B29K2905/02 , B29K2905/12
Abstract: The present invention is directed to a 3D-printed tire segment model having a tread portion comprising a plurality of grooves, ribs and/or tread blocks, and a plurality of blades extending out of the ribs and/or tread blocks, wherein the tire segment model is made of a 3D-printed polymer. Moreover, the present invention is drawn to a method of making a tire mold segment, including the step of 3D-printing the above tire segment model with a polymer.
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公开(公告)号：US11925976B2
公开(公告)日：2024-03-12
申请号：US17418172
申请日：2019-12-12
Inventor： Didier Tanguy , Jerome Lepretre
CPC classification number: B22D17/24 , B22D19/00 , B29C33/3842 , B29D30/0606 , B33Y80/00 , B29D2030/0612
Abstract: A method for manufacturing a mold element using a manufacturing device comprising a die and a counter-mold defining a molding cavity in the closed position, comprises: opening the manufacturing device; placing at least one insert 22, produced by laser sintering, against a molding surface of the die; mounting at least one wedge 28 on the die so as to bear against said insert in order to immobilize it relative to said molding surface; closing the manufacturing device, the counter-mold pressing onto said wedge in order to keep said insert pressed against said molding surface; injecting aluminium into the molding cavity of the manufacturing device; opening the manufacturing device; and extracting from the manufacturing device the mold element provided with a molding face formed by at least part of said insert and by the aluminum.
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公开(公告)号：US11919265B2
公开(公告)日：2024-03-05
申请号：US16962959
申请日：2019-01-18
Inventor： Stephanie Verleene
CPC classification number: B29D30/0606 , B22F10/28 , B22F10/50 , B24C1/10 , B29C33/3842 , C22F1/04 , B29D2030/0613 , B29K2905/02
Abstract: A method for manufacturing an aluminium mould (1) segment (10) for curing and vulcanizing a tyre comprises: a) fixing at least one thin blade (2) for the formation of the grooves in the tire tread, in a mould form made of friable material, so that an exterior part of the thin blade is embedded in the material of the mould form and so that an interior part projects from this mould form, this thin blade being made from maraging steel and having been obtained by a selective laser melting method, b) closing the mould form and pouring or injecting aluminium into it, coating the interior part of the thin blade, c) breaking away the mould form to obtain the mould segment. The thin blade (2) is subjected to a peening treatment with a material with a Vickers hardness between 340 and 500 HV and with dimensions smaller than 0.3 mm.
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公开(公告)号：US11884034B2
公开(公告)日：2024-01-30
申请号：US17155088
申请日：2021-01-22
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Hiroki Uno
IPC: B29D30/06
CPC classification number: B29D30/0606 , B29D2030/0612
Abstract: In a tread-forming surface of a mold, a contour of a land surface-forming portion located between two projections among at least three land surface-forming portions can be represented by a single circular arc that is convex outward. In a case where, of the two projections, one projection is a wide projection and the other projection is a narrow projection, when a surface that has a contour represented by at least one circular arc and that is tangent to the at least three land surface-forming portions is defined as a reference surface of the tread-forming surface, a drop distance from the reference surface to an end on the wide projection side of the land surface-forming portion can be longer than a drop distance from the reference surface to an end on the narrow projection side of the land surface-forming portion.
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公开(公告)号：US11879559B2
公开(公告)日：2024-01-23
申请号：US16976756
申请日：2019-01-30
Applicant: GOTTSCHOL ALCUILUX CZ, SPOL. S R.O.
Inventor： Frantisek Vitek , Michal Tomasek
CPC classification number: F16K24/04 , B29C33/10 , B29D30/0606 , B29D30/0662 , B29D2030/0617
Abstract: The vent valve (10) for venting bores of vulcanization molds, which includes the sleeve (1), with the inner cylindrical hollow (1.1), ended with the valve conical hole (1.2) and the cylindrical hole (1.4) along the sides, whereas the sleeve (1) may be inserted into the vulcanization mold hole, the pin (2), movably located on the spring (3) in the inner cylindrical hollow (1.1), whereas the pin (2) contains the lower cylindrical part (2.4), ended in its lower part with the lower conical part (2.4.1), and the upper conical part in the upper part (2.4.2), the upper conical part (2.4.2) is followed by the central cylindrical part (2.5), followed by the connecting cylindrical part (2.6), whereas the diameter of the central cylindrical part (2.5) is smaller than the connecting cylindrical part (2.6) as well as the lower cylindrical part (2.4). The lower cylindrical part (2.4) and the central cylindrical part (2.5) are divided into four flexible legs (2.7) to (2.10), forming the flexible collet. Four flexible legs (2.7 to 2.10) are shaped identically and partially reach the connecting cylindrical part (2.6).
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Patent Agency Ranking
公开(公告)号：US20180354160A1
公开(公告)日：2018-12-13
申请号：US16060190
申请日：2016-12-08
Applicant: BRIDGESTONE CORPORATION
Inventor： Yasuyuki ISHIHARA
CPC classification number: B29C33/10 , B29C33/02 , B29C33/38 , B29C33/405 , B29D30/0606 , B29D30/0662 , B29D2030/0617
Abstract: A slit vent is formed in a molding member of a mold for rubber article with ease. A molding member of a mold is brought into contact with a rubber article through a molding surface to mold the rubber article. The molding member having a thin-walled part is formed by making a part in which a slit vent of the molding member is to be formed, thinner than other part of the molding member. The slit vent is formed in the thin-walled part of the molding member. The slit vent penetrates the thin-walled part and opens to the molding surface.
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公开(公告)号：US20180297242A1
公开(公告)日：2018-10-18
申请号：US15489188
申请日：2017-04-17
Applicant: Indian Institute of Technology Bombay , CEAT Tyres Ltd.
Inventor： Ramesh Kumar Singh , Sachin Alya , Rinku Kumar Mittal , Adbul Rahim , Shashikant Kharat , Pratik Sampatraj Parmar , Kumar Keshav
CPC classification number: B29C33/72 , B08B5/02 , B08B7/0042 , B29C33/10 , B29D30/0606 , B29D30/0662 , B29D2030/0663 , B29L2030/00 , G01B11/002 , G01B11/2518
Abstract: A vent hole cleaning system is disclosed. The cleaning system is comprised of a housing containing a work table and a support column. The system further comprises a robotic arm mounted on the support column. Further, a subsystem is mounted at an end, opposite to the support column, of the robotic arm. The subsystem may comprise a scanner configured to generate a contour profile of a mold. Further, a vision system may be mounted on the subsystem. The vision system may be communicably connected to the scanner. Further, the system may comprise a cleaning head communicably connected to the vision system and the scanner to enable precision positioning on the mold.
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公开(公告)号：US20180281326A1
公开(公告)日：2018-10-04
申请号：US15763650
申请日：2016-09-20
Applicant: Romain CALVEL , Khotchakorn PENGSALOONG , Supradit KHAOYABUT
Inventor： Romain CALVEL , Khotchakorn PENGSALOONG , Supradit KHAOYABUT
CPC classification number: B29D30/0606 , B29C33/123 , B29D2030/061 , B29D2030/0612 , B60C11/0327
Abstract: The present disclosure provides a molding element for a mold used for manufacturing a tread of a tire having a plurality of contacting element, a plurality of grooves and a connecting member connecting two side faces of adjacent contacting elements, the molding element having a molding surface and a rib for forming the groove between adjacent contacting elements, at least two rib side faces, the rib having a notching portion, the guiding member having a guiding slit extending from one of the two opposite side faces to the other of the two opposite side faces through the guiding member and radially from the top face, at least one of faces of the notching portion is provided with a means for keeping the guiding member in place in the notching portion.
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公开(公告)号：US20180222255A1
公开(公告)日：2018-08-09
申请号：US15891020
申请日：2018-02-07
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Atsushi MAEHARA
CPC classification number: B60C11/0083 , B29D30/0606 , B60C3/04 , B60C9/28 , B60C11/0306 , B60C2011/0365 , B60C2011/0367 , B60C2200/06
Abstract: A heavy-duty tire includes a tread portion including a crown land portion, a shoulder land portion with a tread edge and a middle land portion disposed therebetween. In a tire cross-section of a 5% inflated state, the tread portion comprises a surface profile which comprises an inner arc portion having a radius (R1) of curvature with a center located in a tire equatorial plane and an outer arc portion having a radius (R2) of curvature smaller than the radius (R1) of curvature of the inner arc portion and intersecting the inner arc portion at an inflection point (P). The inflection point (P) is located on the middle land portion, wherein a distance (Lp) in the tire axial direction from the tire equatorial plane to the inflection point (P) is in a range of from 0.35 to 0.50 times a tread half-width (Wt).
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公开(公告)号：US20180178467A1
公开(公告)日：2018-06-28
申请号：US15822476
申请日：2017-11-27
Applicant: TOYO TIRE & RUBBER CO., LTD.
Inventor： Takahiro Ando
CPC classification number: B29D30/0606 , B29D2030/0612 , B29D2030/0617 , B60C13/02
Abstract: Provided is a tire vulcanization mold which includes a sector mold configured to mold a tread portion; and a pair of upper and lower side plates positioned on an inner diameter side of the sector mold and configured to mold side wall portions, the sector mold and the pair of upper and lower side plates being configured to engage with each other by fitting engagement by way of fitting portions which opposedly face each other in a radial direction. At least either one of the sector mold and the side plate has: a recessed portion extending from each fitting surface in a tire radial direction and indented outward in a tire width direction; and a saw cut groove having a groove shape extending in a tire radial direction along at least one of an edge portion and a corner portion of the recessed portion and communicating with the fitting surface.
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