A keyswitch includes a board, a cap opposite to the board, a first support device, a second support device, and a first link member. The first support device is disposed between the cap and the board. An end of the first support device is connected to the board. Another end of the first support device is connected to the cap. The second support device is disposed between the cap and the board and is separate from the first support device at a specific distance. An end of the second support device is connected to the board. Another end of the second support device is connected to the cap. The first link member has a first end portion and a second end portion. The first end portion is movably connected to the first support device. The second end portion is connected to the second support device.

Disclosed herein is a switching apparatus for medium voltage electric systems, said switching apparatus including one or more electric poles. For each electric pole, said switching apparatus includes: a first pole terminal, a second pole terminal, and a ground terminal; a first fixed contact member and a first movable contact member, said first fixed contact member being electrically connected to said first pole terminal and including a first fixed contact, said first movable contact member being electrically connected to said second pole terminal and including a first movable contact; a second fixed contact member and a second movable contact member, said second fixed contact member being electrically connected to said first pole terminal and including a second fixed contact, said second movable contact member including a second movable contact; a vacuum chamber, in which said second fixed contact and said second movable contact are enclosed; and a motion transmission mechanism.

The shell is provided with an axial opening at the top and a guide track structure inside. The movable terminal is provided inside the shell and forms an arm spring. The actuating lever is threaded through the axial opening, with a flat slope on one side and a positioning slope on the other. The actuating lever is provided with a guiding structure, and the positioning slope is provided with a positioning structure. Moving upwards along the circumference, the actuating lever has a position 1 and a position 2. When the actuating lever is at position 1 or position 2, the guiding structure joins the guide track structure. When the actuating lever is at position 1, the arm spring comes into contact with the flat slope and slips. When the actuating lever is at position 2, the arm spring comes into contact with the positioning slope and slips.

The operating device (10) for a vehicle is provided with a housing (12) having a front wall (14). At least one operating element (18) is arranged on the front wall (14) and can be manually actuated starting from a rest position for the purpose of entering a command or activating a function. The operating element (18) is associated with a switch (32) having a switching member (36) on which the operating key acts during manual operation. Furthermore, a support element (24) is arranged in the housing (12) at a distance from the operating element (18), on which support element (24) the switch (32) associated with the operating element (18) is arranged, the support element (24) having a bending bar (40) with an upper side (42) facing the operating element (18) and a lower side (44) facing away from the upper side (42), and the switch (32) being arranged on the bending bar. Finally, the operating device (10) is provided with an adjustment member (46) acting on the bending bar (40) for adjusting the bending position of the bending bar (40) relative to the operating element (18) in its resting position and for maintaining and thus stabilizing the bending bar (40) in its adjusted bending position when the operating element (18) acts on the switching member (36). The adjustment member (46) comprises a threaded sleeve (54) with an internal thread (56) and a self-tapping adjustment screw (48) with a threaded shaft (50), wherein the internal thread (56) of the threaded sleeve (54) and the external thread (52) of the threaded shaft (50) of the self-tapping adjustment screw (48) have the same or substantially the same pitch.

A control device with limit switches is provided. The device has a container housing an electric circuit provided with one or more limit switches, and a driving assembly configured to control operation of a valve or an actuator through the limit switches of the electric circuit. The driving assembly has a shaft configured to be rotatably coupled to a valve or an actuator and one or more cams keyed on the shaft and is configured for driving the limit switches of the electric circuit. The shaft has a gripping surface and each cam has a radial clamping mechanism whose gripping members are arranged in correspondence of a through hole configured to allow to fit the cam onto the shaft.

A switching device includes a base module equipped with an electromagnetic drive that has a yoke, a coil and an armature arranged movably relative to the yoke, and that has a switching contact that includes a stationary switching piece and a movable switching piece arranged opposite the stationary switching piece, wherein the switching contact is switchable between an “open” position and a “closed” position via movement of the armature, where the switching device also includes a modular auxiliary switching unit equipped with a contact system that consists of a stationary switching piece and a movable switching piece arranged opposite the stationary switching piece such that the coupling between the base module and the modular auxiliary switching unit is configured such that different distances in the contact system of the auxiliary switching unit are transferrable during a trigger event via an elastic element regardless of the auxiliary switching unit in use.

The operating device (10) for a vehicle is provided with a housing (12) having a front wall (14). On the front wall (14) there is at least one operating element (18) which can be operated manually starting from an initial position for the purpose of inputting a command or activating a function. The operating element (18) has associated therewith a switch (32) having a switching member (36) upon which the operating key acts when manually operated. A supporting element (24) is also situated in the housing (12) at a distance from the operating element (18), on which supporting element (24) the switch (32) associated with the operating element (18) is situated, wherein the supporting element (24) has a flexible bar (40) having an upper surface (42) facing the operating element (18) and a lower surface (44) facing away from the upper surface (42), and the switch (32) is situated on the flexible bar. Finally, the operating device (10) is provided with an adjustment member (46) which acts upon the flexible bar (40) to adjust the bending position of the flexible bar (40) relative to the operating element (18) in the initial position thereof and to maintain and thus stabilize the flexible bar (40) in the adjusted bending position thereof when the operating element (18) acts upon the switching member (36).

The operating device for a vehicle is provided with a housing having a front wall. At least one operating element is arranged on the front wall and can be manually actuated starting from a rest position for the purpose of entering a command or activating a function. The operating element is associated with a switch having a switching member on which the operating key acts during manual operation. Furthermore, a support element is arranged in the housing at a distance from the operating element, on which support element the switch associated with the operating element is arranged, the support element having a bending bar with an upper side facing the operating element and a lower side facing away from the upper side, and the switch being arranged on the bending bar. Finally, the operating device is provided with an adjustment member acting on the bending bar for adjusting the bending position of the bending bar relative to the operating element in its resting position and for maintaining and thus stabilizing the bending bar in its adjusted bending position when the operating element acts on the switching member. The adjustment member comprises a threaded sleeve with an internal thread and a self-tapping adjustment screw with a threaded shaft, wherein the internal thread of the threaded sleeve and the external thread of the threaded shaft of the self-tapping adjustment screw have the same or substantially the same pitch.

Disclosed herein is a switching apparatus for medium voltage electric systems, said switching apparatus including one or more electric poles. For each electric pole, said switching apparatus includes: a first pole terminal, a second pole terminal, and a ground terminal; a first fixed contact member and a first movable contact member, said first fixed contact member being electrically connected to said first pole terminal and including a first fixed contact, said first movable contact member being electrically connected to said second pole terminal and including a first movable contact; a second fixed contact member and a second movable contact member, said second fixed contact member being electrically connected to said first pole terminal and including a second fixed contact, said second movable contact member including a second movable contact; a vacuum chamber, in which said second fixed contact and said second movable contact are enclosed; and a motion transmission mechanism.

The shell is provided with an axial opening at the top and a guide track structure inside. The movable terminal is provided inside the shell and forms an arm spring. The actuating lever is threaded through the axial opening, with a flat slope on one side and a positioning slope on the other. The actuating lever is provided with a guiding structure, and the positioning slope is provided with a positioning structure. Moving upwards along the circumference, the actuating lever has a position 1 and a position 2. When the actuating lever is at position 1 or position 2, the guiding structure joins the guide track structure. When the actuating lever is at position 1, the arm spring comes into contact with the flat slope and slips. When the actuating lever is at position 2, the arm spring comes into contact with the positioning slope and slips.