B29D30/66

PROCESS FOR MANUFACTURING A TREAD MOLDING ELEMENT OF A TIRE-MOLD COMPRISING A THERMOSETTING POLYMER
20230014862 · 2023-01-19 ·

The disclosure provides for a process for manufacturing a tread molding element configured to mold at least a portion of a tire tread, the process comprising the following successive steps of providing a first tread molding element that can be a 3D-printed element made of a plastic composition A; forming a reverse mold of the first tread molding element, wherein the reverse mold is made of a plastic composition B comprising one or more elastomers; heating the reverse mold to a temperature above 50° C. when the first tread molding element is a 3D-printed element made of a plastic composition A; and casting a second tread molding element from the reverse mold to obtain a second tread molding element; wherein the second tread molding element is made from a plastic composition C comprising one or more thermosetting resins.

PROCESS FOR MANUFACTURING A TREAD MOLDING ELEMENT OF A TIRE-MOLD COMPRISING A THERMOSETTING POLYMER
20230014862 · 2023-01-19 ·

The disclosure provides for a process for manufacturing a tread molding element configured to mold at least a portion of a tire tread, the process comprising the following successive steps of providing a first tread molding element that can be a 3D-printed element made of a plastic composition A; forming a reverse mold of the first tread molding element, wherein the reverse mold is made of a plastic composition B comprising one or more elastomers; heating the reverse mold to a temperature above 50° C. when the first tread molding element is a 3D-printed element made of a plastic composition A; and casting a second tread molding element from the reverse mold to obtain a second tread molding element; wherein the second tread molding element is made from a plastic composition C comprising one or more thermosetting resins.

Method for manufacturing an improved pneumatic tire

The method includes the step of forming a carcass from at least one first material based on a thermoplastic elastomer. The method continues with the step of forming, on the carcass, at least bead zone from at least one second material based on a thermoplastic elastomer to form an assembly. The method proceeds with the step of forming, on the assembly an additional part from at least one third material based on a thermoplastic elastomer.

LASER SINTERING METHOD FOR MANUFACTURING A TREAD MOLDING ELEMENT

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 ripe 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.

METHOD FOR PROVIDING A VEHICLE TYRE WITH STUDS, AND A STUDDED TYRE FOR A VEHICLE
20170368889 · 2017-12-28 ·

A method for installing a stud in a tyre. The method includes identifying a stud hole for the stud in the tyre; imaging the vicinity of at least the stud hole, whereby information is received about the pattern in the vicinity of the stud hole, and using the received information to determine [i] the stud type suitable for the stud suitable in the stud hole and/or [ii] the suitable stud orientation of the stud suitable in the stud hole. The method includes providing a stud and installing it in a stud hole. The stud type of the stud is the same as the suitable stud type of a stud suitable in the stud hole; and/or the stud is installed in the stud hole in such a way that the main direction of the stud is parallel with the suitable stud orientation. Further a tyre studded by the method.

Method for manufacturing a tire with obliquely reinforced tread blocks

A method for manufacturing a tread (5) based on uncured rubber material comprises the steps of forming a green form (9) of tread based on uncured rubber material having at least one tread pattern (2) block (3), each tread pattern (2) block (3) having a central portion (11) and at least one lateral portion (12) extending along the central portion (11), of mounting at least one reinforcing ply (7) on at least a part of the central portion (11), and of covering the central part (11) with the aid of the lateral portion (12) in order that the tread pattern (2) block (3) envelops the reinforcing ply (7).

Method for manufacturing a tire with obliquely reinforced tread blocks

A method for manufacturing a tread (5) based on uncured rubber material comprises the steps of forming a green form (9) of tread based on uncured rubber material having at least one tread pattern (2) block (3), each tread pattern (2) block (3) having a central portion (11) and at least one lateral portion (12) extending along the central portion (11), of mounting at least one reinforcing ply (7) on at least a part of the central portion (11), and of covering the central part (11) with the aid of the lateral portion (12) in order that the tread pattern (2) block (3) envelops the reinforcing ply (7).

Method for determining the tread depth of a vehicle pneumatic tire

A method for determining the profile depth of a tread of a pneumatic vehicle tire wherein the tread has a wear indicator. The wear indicator has an incision extending in the radial direction of the tire. The incision has a length visible on the tread and the length becomes shorter as wear increases. The wear indicator has two reference marks at a distance from each other. The distance is configured to remain constant and visible throughout the tread wear. A photo of the incision and the reference marks is generated via an application program of a mobile phone having a camera and an image screen. A current profile depth is calculated from the distance of the reference marks and the length of the incision via the application program. The current profile depth and/or a remaining profile depth are displayed until a minimal profile depth is reached on the screen.

METHOD AND APPARATUS FOR MANUFACTURING A TYRE TREAD AND A TYRE
20220347955 · 2022-11-03 ·

A method of manufacturing an agricultural tyre (1) with deep cross-lugs (6), comprising the steps of: (a) proving a tyre case (2) and tread belts (3); (b) applying rubber blocks (206) onto tread belts (3), each of such rubber blocks (206) being arranged to make a respective lug (6) of the final tread (4); (c) winding a rubber ribbon (200) above said rubber blocks (206) so as to completely enclose said rubber blocks (206); (d) curing the rubber blocks (206) together with the wound ribbon (200) in a curing mould (105) negatively reproducing a desired pattern of the tread (4).

METHOD AND APPARATUS FOR MANUFACTURING A TYRE TREAD AND A TYRE
20220347955 · 2022-11-03 ·

A method of manufacturing an agricultural tyre (1) with deep cross-lugs (6), comprising the steps of: (a) proving a tyre case (2) and tread belts (3); (b) applying rubber blocks (206) onto tread belts (3), each of such rubber blocks (206) being arranged to make a respective lug (6) of the final tread (4); (c) winding a rubber ribbon (200) above said rubber blocks (206) so as to completely enclose said rubber blocks (206); (d) curing the rubber blocks (206) together with the wound ribbon (200) in a curing mould (105) negatively reproducing a desired pattern of the tread (4).