Carangelo, Pierluigi

A wireless sound diffusion device (10) comprising: - a processing unit (11); - a multi-channel wireless receiving interface (12) operating at a frequency of 2.4 GHz operatively connected to, or integrated into, the processing unit (11); - a channel selection module (13) operatively connected to the processing unit (11) and controllable to selectively set one of a plurality of channels; - a rechargeable battery (14) configured to power the wireless sound diffusion device (10); - at least one acoustic transducer (15); - at least one container body (1) in which the processing unit (11), said multi-channel wireless receiving interface (12), the channel selection module (13), the rechargeable battery (14) and said acoustic transducer (15) are housed; wherein: - the multi-channel wireless receiving interface (12) is configured to receive a digital audio signal from a wireless transmitter (20) operating at a frequency of 2.4 Ghz, on the channel set by means of the channel selection module (13); - the processing unit (11) is configured to convert the digital audio signal to an analog audio signal and drive said acoustic transducer (15) by means of the analog audio signal.

A wheel assembly (10) for a motorcycle is described, comprising a wheel rim (15) on which a tire (16) is mounted, the wheel rim being mounted on a hub (14). The hub is rotatably mounted on a fixed, non-rotating wheel pin (20), defining a rotation axis of the wheel rim. A hubcap (30) is arranged in correspondence with the wheel pin and mounted integrally with the wheel pin, such that when said wheel assembly rotates about the wheel pin, the hubcap does not rotate, and in which the hubcap is contained within a volume defined by the wheel rim and tire assembly.

The invention relates to a device (100; 200) for fixing an antenna (1, 1') of a global navigation satellite system, GNSS, to a rail (2) of a railway track; such a rail comprises a head portion (21) adapted to come into contact with the wheels of a train and connected to an opposite base portion (22) including a base surface (22a) facing the ballast (MC) of the railway track. The fixing device comprises:- a body (101; 201) made of a metal material comprising:- a first body portion (102; 202) for fixing a GNSS antenna to the fixing device;- a plate-shaped second body portion (103; 203), removably fixable to the base portion of the rail;- a third body portion (104; 204) configured to connect the first and second body portions,wherein the first and second body portions of the metal body are associated with a first plane (P1; P1') and a second plane (P2; P2') parallel to each other, respectively, and wherein the plate-shaped second body portion comprises a first face (103a; 203a) facing the first plane and an opposite second face (103b; 203b);- metal means (10, 14, 15; 10, 14, 15, 208) to removably fix the plate-shaped second body portion to the base portion of the rail;wherein, when the fixing device is fixed to the rail, the first face of the plate-shaped second body portion is in contact with the base surface of the base portion of the rail and the second face of the second body portion faces the ballast of the railway track.

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