Abstract: A tyre building drum having a central shaft; two cylindrical half-drums mounted to slide along the central shaft; and a telescopic central body coaxial with the two half-drums, connecting the two half-drums, and having a tubular central member integral with the central shaft, two tubular end members integral with the respective half-drums, and an intermediate segment interposed between the tubular central member and each tubular end member; each end member is defined by the union of two semicircular end half-members connected rigidly to the half-drum by a number of first releasable fastening devices; and each intermediate segment is defined by the union of two semicircular intermediate half-segments connected rigidly to the central member by a number of second releasable fastening devices.

Abstract: A tyre building drum having a central shaft; two cylindrical half-drums mounted to slide along the central shaft; and a telescopic central body coaxial with the two half-drums, connecting the two half-drums, and having a tubular central member integral with the central shaft, two tubular end members integral with the respective half-drums, and an intermediate segment interposed between the tubular central member and each tubular end member; each end member is defined by the union of two semicircular end half-members connected rigidly to the half-drum by a number of first releasable fastening devices; and each intermediate segment is defined by the union of two semicircular intermediate half-segments connected rigidly to the central member by a number of second releasable fastening devices.