Abstract: An optical orientation device includes a support structure; an optical element having an optical surface interacting with a laser beam; and a mechanism mounted on the support structure rotating the optical element around mutually perpendicular first and second fixed rotation axes. The mechanism includes a first rotary assembly articulated around a first mobile support axis, which is rotary and perpendicular relative to the first rotation axis. The first rotary assembly is coupled to the support structure to rotate around the first rotation axis, so the optical element rotates around the first rotation axis and the first mobile support axis. A second rotary assembly rotates around a second mobile support axis perpendicular to the first mobile support axis. The beam passes through a cavity around the first rotation axis, the cavity facing the optical element. First and second linear actuators rotate the first rotary assembly and the second rotary assembly, respectively.

Abstract: An optical orientation device includes a support structure; an optical element having an optical surface interacting with a laser beam; and a mechanism mounted on the support structure rotating the optical element around mutually perpendicular first and second fixed rotation axes. The mechanism includes a first rotary assembly articulated around a first mobile support axis, which is rotary and perpendicular relative to the first rotation axis. The first rotary assembly is coupled to the support structure to rotate around the first rotation axis, so the optical element rotates around the first rotation axis and the first mobile support axis. A second rotary assembly rotates around a second mobile support axis perpendicular to the first mobile support axis. The beam passes through a cavity around the first rotation axis, the cavity facing the optical element. First and second linear actuators rotate the first rotary assembly and the second rotary assembly, respectively.

Abstract: A rotary joint (10; 110) includes an output member (12; 112) rotatable about a first axis of rotation (x1), a first actuator device (14) arranged to generate a rotary motion about the first axis (x1), an input member (16; 116) driven by the first actuator device (14; 114) about the first axis (x1), elastic elements (20, 64; 120) between the input member (16; 116) and the output member (12; 112) and configured such that the transmission of the torque takes place via the elastic elements (20, 64; 120). A second actuator device (22; 122) is arranged to change the stiffness of the rotary joint (10; 110).

Abstract: A device (10) includes a turbine (22, 34) having an impeller (22), and an electric generator (12, 24) having a stator (12) provided with stator windings distributed around a cylindrical surface (X) coaxial to the impeller (22), and a permanent magnet (24) which is rotatable relative to the stator (12) and is drivingly connected for rotation with the impeller (22). The impeller (22) is housed inside the permanent magnet (24) and the assembly formed by the impeller (22) and by the permanent magnet (24) is housed inside the stator (12). The permanent magnet (24) is made as a single hollow cylindrical body of high magnetic density material with diametrical magnetization.

Abstract: An interface system (10) for man-machine interaction includes a sensor and actuator arrangement (12) wearable by or coupled to the body (B) of a user. A management unit (14) exchanges data with a control application resident on a remote processing system (PS), to transmit data to the application, indicative of the position and movements of the user in a physical environment, and to transmit sensations to the user, in at least one point of the body of the user, indicative of the interaction with an operating environment. The sensors and actuators are supported by operating modules (16), interfacing on at least one communication channel through respective pairs of input and output communication ports. The operating modules are provided with interconnection devices (18) in such a way as to be assembled to each other into a planar arrangement and/or a stacked arrangement.

Abstract: A tensioner (1) for a belt drive, comprises a base (2) defining an axis (A), a mobile eccentric element (3) hinged about axis (A) and loaded by a spring (5), a pulley (4) idly connected to the mobile element (3). Specifically, the pulley (4) defines a single body with the external ring of a rolling bearing (6) mounted on the mobile element (3) and the spring (5) is helical and presents a square or rectangular cross section.

Abstract: A rotary joint (10; 110) includes an output member (12; 112) rotatable about a first axis of rotation (x1), a first actuator device (14) arranged to generate a rotary motion about the first axis (x1), an input member (16; 116) driven by the first actuator device (14; 114) about the first axis (x1), elastic elements (20, 64; 120) between the input member (16; 116) and the output member (12; 112) and configured such that the transmission of the torque takes place via the elastic elements (20, 64; 120). A second actuator device (22; 122) is arranged to change the stiffness of the rotary joint (10; 110).

Abstract: A device (10) includes a turbine (22, 34) having an impeller (22), and an electric generator (12, 24) having a stator (12) provided with stator windings distributed around a cylindrical surface (X) coaxial to the impeller (22), and a permanent magnet (24) which is rotatable relative to the stator (12) and is drivingly connected for rotation with the impeller (22). The impeller (22) is housed inside the permanent magnet (24) and the assembly formed by the impeller (22) and by the permanent magnet (24) is housed inside the stator (12). The permanent magnet (24) is made as a single hollow cylindrical body of high magnetic density material with diametrical magnetization.

Abstract: A tensioner (1) for a belt drive comprises a base(2, 3) defining an axis (A), a mobile element (4) hinged onto axis (A) and defining a guiding surface (22), an elastic helical element (18) having a square or rectangular cross section for actuating the mobile element (4) and an idle pulley (5) surrounding the guiding surface (22). The tensioner (1) further comprises a journal bearing (4, 29, 32, 33) for supporting the pulley (5) on the guiding surface (22).

Abstract: A tensioner for a belt drive comprises a pivot defining an axis, a support hinged to the axis and defining a guiding surface preferably having a circular profile, an elastic element for actuating the support and a crown pulley eccentric with respect to the axis and surrounding the guiding surface. The tensioner further comprises a journal bearing to support the pulley on the guiding surface.

Abstract: A tensioner (1) for a belt drive comprises a base(2, 3) defining an axis (A), a mobile element (4) hinged onto axis (A) and defining a guiding surface (22), an elastic helical element (18) having a square or rectangular cross section for actuating the mobile element (4) and an idle pulley (5) surrounding the guiding surface (22). The tensioner (1) further comprises a journal bearing (4, 29, 32, 33) for supporting the pulley (5) on the guiding surface (22).

Abstract: A tensioner for a belt drive comprises a pivot defining an axis, a support hinged to the axis and defining a guiding surface preferably having a circular profile, an elastic element for actuating the support and a crown pulley eccentric with respect to the axis and surrounding the guiding surface. The tensioner further comprises a journal bearing to support the pulley on the guiding surface.

Abstract: A tensioner (1) for a belt drive, comprises a base (2) defining an axis (A), a mobile eccentric element (3) hinged about axis (A) and loaded by a spring (5), a pulley (4) idly connected to the mobile element (3). Specifically, the pulley (4) defines a single body with the external ring of a rolling bearing (6) mounted on the mobile element (3) and the spring (5) is helical and presents a square or rectangular cross section.