Patent ID: 9399328
Filing Date: 2016-07-26
CPC Classification: B29D

Claim Text:
1. A building plant for building tyres for mounting on vehicle wheels comprising a set of elements comprising forming drums whereon tyres are built, and pairs of support rings suitable for cooperating with said forming drums in building said tyres, wherein, at steady operating conditions of the building plant, the following three subsets of elements are present: i) forming drums unprovided with support rings; ii) pairs of support rings dissociated from respective forming drums; and iii) forming drums associated with pairs of support rings, wherein each of said subsets i), ii) and iii) is physically separate and independent from remaining subsets i), ii) and iii), wherein the building plant comprises a carcass structure building line comprising a support rings associating work station including a device for associating a pair of support rings of subset ii) with a respective forming drum, wherein the carcass structure building line comprises a plurality of carcass building work stations, a support rings removing work station, a forming drums temporary storage, and a support rings temporary storage, wherein the carcass structure building line comprises a first robot arm configured to transfer a forming drum associated with its respective pair of support rings of subset iii) from one of the carcass budding work stations to the support rings removing work station, wherein the carcass structure building line comprises a second robot arm configured to transfer a pair of support rings dissociated from its respective forming drum of subset ii) from the support rings removing work station to the support rings temporary storage and to transfer it from the support rings temporary storage to the support rings associating work station, wherein the building plant is configured to remove a built shaped green tyre from its respective forming drum, which is unprovided with support rings, and transfer the respective forming drum from which the built shaped green tyre has been removed, without the built shaped green tyre, to the support rings associating work station, and wherein the building plant is configured to either selectively transfer one of the forming drums associated with a respective pair of support rings of subset iii) from said support rings associating work station to the forming drums temporary storage, or alternatively to directly use said one of the forming drums to start a new building cycle without said one of the forming drums entering the forming drums temporary storge.