Process and apparatus for building tyres for vehicle wheels

    公开(公告)号:US10730258B2

    公开(公告)日:2020-08-04

    申请号:US15663966

    申请日:2017-07-31

    IPC分类号: B29D30/26 B29D30/24 B29D30/30

    摘要: An apparatus for building a tyre for a vehicle wheel includes a building drum having at least one first outer circumferential surface, and at least one pair of auxiliary support members removably in engagement with the building drum, each in axial side by side relationship with a respective end of the building drum and having second outer circumferential surfaces extending in the continuation of the first outer circumferential surface so as to support at least one component of the tyre. Each of the second outer circumferential surfaces has at least one non-stick circumferential portion and at least one sticking circumferential portion.

    Process and apparatus for applying noise reducer elements to tyres for vehicle wheels

    公开(公告)号:US10710323B2

    公开(公告)日:2020-07-14

    申请号:US16062336

    申请日:2016-11-23

    摘要: Process and apparatus for applying noise reducing elements to tyres for vehicle wheels. The apparatus includes a loading station of stacks of noise reducing elements, an extraction station of noise reducing elements from each stack placed downstream of the loading station, and a conveyor placed downstream of the extraction station and extending along a predefined path. The conveyor is configured for supporting and advancing in a row the noise reducing elements extracted from the stacks which are then applied to a radially inner surface of the tyres. The extraction of each of the noise reducing elements contemplates: retaining a first noise reducing element placed at the base of a stack; raising the remaining noise reducing elements of the stack from the first noise reducing element; moving away the first noise reducing element according to a set path; and lowering the remaining noise reducing elements of the stack.

    Apparatus for controlling tyres in a production line

    公开(公告)号:US10627220B2

    公开(公告)日:2020-04-21

    申请号:US15535303

    申请日:2015-12-15

    摘要: An apparatus for checking tires described as a linear camera having an objective line lying on an optical plane; a first, a second and a third light source for emitting respectively a first, a second and a third light radiation; a command and control unit for selectively activating at least one from among the first, second and third light source and activating the linear camera in order to acquire a two-dimensional image of a linear surface portion of the tire synchronously with the activation of the first, second and third source. The first and second light source lie on opposite sides of the optical plane. Furthermore, the first, second and third light source include each one or more sub-sources each having a respective main extension direction parallel to the optical plane and the distance of the sub-sources of the third light source from the optical plane is less than the distance of the first and second light source from the optical plane.

    PROCESS AND PLANT FOR BUILDING TYRES FOR VEHICLE WHEELS

    公开(公告)号:US20200079043A1

    公开(公告)日:2020-03-12

    申请号:US16467309

    申请日:2017-11-29

    IPC分类号: B29D30/36 B29D30/24

    摘要: In a shaping station (13), a toroidal forming drum (23) is positioned within a carcass sleeve (12) comprising at least one carcass ply (3) associated with a pair of beads (6) in radially inner position. The carcass sleeve (12) is toroidally shaped by radial expansion of the forming drum (23). The forming drum (23) carrying the shaped carcass sleeve (12) is removed from the shaping station (13). Tyre components (7, 8, 9) are applied externally on the shaped carcass sleeve (12), carried by the forming drum (23). At the end of the shaping and during the application of the tyre components (7, 8, 9), axially inner sides of said beads (6) are arranged axially against respective circumferential axially outer portions (S1) of an abutment surface (S) carried by the expanded forming drum (23), having shape corresponding to an inner shape of the shaped carcass sleeve (12).

    TYRE BUILDING PLANT AND METHOD FOR SUPPLYING AN ELONGATED ELEMENT TO A FORMING DRUM IN A TYRE BUILDING PLANT

    公开(公告)号:US20200079040A1

    公开(公告)日:2020-03-12

    申请号:US16685406

    申请日:2019-11-15

    发明人: Davide CONTI

    IPC分类号: B29D30/00 B29D30/44 B29D30/46

    摘要: A tyre building plant (1; 100) comprises a forming drum (4) and a supply device (10) for supplying an elongated element (3) towards the forming drum. The supply device comprises at least one conveyor belt (11; 101) which extends in a supply direction (X) between a loading region (12), in which the elongated element is loaded on the conveyor belt and an unloading region (13), a control unit (19) for controlling the loading of the elongated element (3) on the conveyor belt (11; 101), at least a first detection element which is fixed with a first portion (20) of the conveyor belt, a sensor (22) which is fixed and independent with respect to the conveyor belt and which detects the position of the first portion (20) with respect to the supply device. The loading of the elongated element on the conveyor belt is performed when the first portion is at a predefined reference distance from the loading region (12).

    TYRE FOR VEHICLE WHEELS
    70.
    发明申请

    公开(公告)号:US20190381832A1

    公开(公告)日:2019-12-19

    申请号:US16489746

    申请日:2018-03-05

    IPC分类号: B60C1/00 B60C13/00 C08L9/00

    摘要: The present invention relates to a tyre for vehicle wheels comprising at least one external structural element comprising at least one external structural element comprising a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition comprising (i) at least one diene elastomeric polymer, and (ii) a system for protection against ozone substantially free of polymeric static protective agents which essentially consists of at least one phenolic antioxidant in an amount substantially equal to or higher than 3 phr.