A device for actuating a rotating shaft selected from a plurality of parallel rotating shafts, comprising a driving shaft supported and actuated by corresponding rotation means, which is provided with a driving gear for the transmission of torque, a plurality of driven shafts each one of which is provided with a corresponding driven gear that is designed to be meshed with the driving gear, the driven gears being arranged on the respective driven shaft in an axial position that is offset with respect to the other driven gears, the driving gear being capable of performing a translational movement axially with means of translational motion for alternate meshing with one of the driven gears, the device further comprising means of prevention of rotation for the driven shafts whose driven gear is not meshed with the driving gear.

A device for actuating a rotating shaft selected from a plurality of parallel rotating shafts, comprising a driving shaft supported and actuated by corresponding rotation means, which is provided with a driving gear for the transmission of torque, a plurality of driven shafts each one of which is provided with a corresponding driven gear that is designed to be meshed with the driving gear, the driven gears being arranged on the respective driven shaft in an axial position that is offset with respect to the other driven gears, the driving gear being capable of performing a translational movement axially with means of translational motion for alternate meshing with one of the driven gears, the device further comprising means of prevention of rotation for the driven shafts whose driven gear is not meshed with the driving gear.

A switch includes a switch body, for containing switch components, at least two terminal contacts, protruding from the switch body, at least one movable contact, which is movable from an operative position, wherein the movable contact is electrically coupled between the at least two terminal contacts, and a disconnecting position, wherein the movable contact is electrically uncoupled between the at least two terminal contacts. The switch also includes a moving mechanism including an electric motor and a support sliding element for the movable contact, driven by the moving mechanism and the electric motor, to move the movable contact between the operative condition and the disconnecting position.

A switching device for an on-board electrical system of an electrically driven motor vehicle includes an electromechanical switch which is designed to connect and interrupt a supply line of the on-board electrical system. The electromechanical switch has: a stationary first switching contact, a movable second switching contact, and an actuation unit which has a mechanical force-transmitting element and a drive element. In order to switch from an open switching state to a closed switching state of the electromechanical switch, the drive element moves the transmitting element along a movement path, and the force-transmitting element moved along the movement path acts mechanically on the second switching contact and moves the second switching contact toward the first switching contact. In order to maintain the closed switching state of the electromechanical switch, the force-transmitting element applies, at the end of the movement path, a pressing force to the second switching contact for pressing against the first switching contact, without further driving by way of the drive element.

A rotating switch contact apparatus has an apparatus housing; a contact housing; a housing bearing provided in the contact apparatus housing, the housing being rotatably mounted in the bearing; and a contact bridge mounted in the housing, rotating with the latter and having, at each end, a stationary mating contact receptacle, receptacles protruding from housing openings so the receptacles engage stationary mating contacts during contact housing rotation and may produce electrical contact between stationary mating contacts via the contact bridge. At least one spring terminal is arranged between the housing and bridge, which is resiliently mounted in the housing approximately perpendicular to the apparatus rotational plane. The contact housing is approximately cylindrical and at least partially has, on its lateral surface, a gearwheel section, and has an opening through which the gearwheel section projects, so the housing is rotationally movable for contact opening or closing between stationary mating contacts and receptacles via a gearwheel engaging in the gearwheel section.

A rotating switch contact apparatus has an apparatus housing; a contact housing; a housing bearing provided in the contact apparatus housing, the housing being rotatably mounted in the bearing; and a contact bridge mounted in the housing, rotating with the latter and having, at each end, a stationary mating contact receptacle, receptacles protruding from housing openings so the receptacles engage stationary mating contacts during contact housing rotation and may produce electrical contact between stationary mating contacts via the contact bridge. At least one spring terminal is arranged between the housing and bridge, which is resiliently mounted in the housing approximately perpendicular to the apparatus rotational plane. The contact housing is approximately cylindrical and at least partially has, on its lateral surface, a gearwheel section, and has an opening through which the gearwheel section projects, so the housing is rotationally movable for contact opening or closing between stationary mating contacts and receptacles via a gearwheel engaging in the gearwheel section.

A transfer assembly is for a switching assembly of an electrical enclosure. The switching assembly includes an electrical switching apparatus having an operating handle structured to move from an OFF position to an ON position. The transfer assembly includes a driving handle; a first shaft member coupled to the driving handle; a second shaft member structured to be coupled to the operating handle; and a transmission assembly having a first component and a second component, the first component being coupled to the first shaft member, the second component being coupled to the second shaft member. The transfer assembly is structured to move from a FIRST position to a SECOND position. When the transfer assembly moves from the FIRST position to the SECOND position, the first component drives the second component, thereby causing the second shaft member to move the operating handle from the OFF position to the ON position.

A switch includes a switch body, for containing switch components, at least two terminal contacts, protruding from the switch body, at least one movable contact, which is movable from an operative position, wherein the movable contact is electrically coupled between the at least two terminal contacts, and a disconnecting position, wherein the movable contact is electrically uncoupled between the at least two terminal contacts. The switch also includes a moving mechanism including an electric motor and a support sliding element for the movable contact, driven by the moving mechanism and the electric motor, to move the movable contact between the operative condition and the disconnecting position.

An on-load tap-changer has a transmission, a motor with an output shaft, and a diverter switch with a drive shaft. The transmission has a cam disk; a drive gear wheel; and a roller coupled to the drive gear wheel. The cam disk is connected the output shaft, which lies on a rotation axis of the cam disk. The drive gear wheel is connected to the drive shaft. The cam disk has an inner and outer contour, which are followed by the roller, and which each have a first region with a constant radius of curvature and a second region in which a distance of a respective contour from the rotation axis of the cam disk changes. During a rotational movement of the cam disk, the roller follows the first region of the outer contour, the second region of the outer contour, and then the first region of the inner contour.

An on-load tap-changer has a transmission, a motor with an output shaft, and a diverter switch with a drive shaft. The transmission has a cam disk; a drive gear wheel; and a roller coupled to the drive gear wheel. The cam disk is connected the output shaft, which lies on a rotation axis of the cam disk. The drive gear wheel is connected to the drive shaft. The cam disk has an inner and outer contour, which are followed by the roller, and which each have a first region with a constant radius of curvature and a second region in which a distance of a respective contour from the rotation axis of the cam disk changes. During a rotational movement of the cam disk, the roller follows the first region of the outer contour, the second region of the outer contour, and then the first region of the inner contour.