Vehicle horn control device, embedded on a vehicle steering wheel, comprising: a base part (10); a control part (20), movable between a rest position and a depressed position; elastic return means (31), for pushing back the control part (20) to the rest position,—positioning means (41); an electrical circuit with at least one switch comprising a second contact terminal (51; 151; 251a, 251b; 21, 452), embedded on the control part (20), and a first contact terminal (52; 152; 252; 441), secured to the base part (10), characterized in that the positioning means (41) comprises the initial contact terminal (52; 152; 252; 441) arranged to position the control part (20) in the rest position, so as to close the switch when the control part (20) is in the rest position.

An electronic device is provided. The electronic device includes a frame, a signal trigger fixed inside the frame, and a button penetrating the frame. The button includes a button post, an elastic cushion, and a button cap. The button post penetrates the frame to be adjacent to the signal trigger. The elastic cushion is fixed to an end of the button post away from the signal trigger. The button cap is fixedly connected to a side of the elastic cushion away from the button post. The elastic cushion is connected between the button post and the button cap, and the button cap can move relative to the button post due to elastic deformation of the elastic cushion.

Provided are an electronic device, including a side frame, a signal triggering element fixedly disposed inside the side frame, and a button configured to extend through the side frame. The side frame defines a button hole directly facing the signal triggering element, and a limiting protrusion is arranged on an inner wall of the button hole. The button includes: a button post, extending through the side frame and disposed adjacent to the signal triggering element; a button cap, connected to the button post and engaged with the button hole; and a snap board, fastened to a side of the button cap facing the signal triggering element, wherein the snap board is configured with a hook engaged with the limiting protrusion for limiting.

An input device including an operation key arranged in an opening of a panel is provided. The input device also includes a light source and a push button switch each being arranged in a position opposite an opening on a board. The operation key includes: a key top having a pressing part extending toward the push button switch. The pressing part is arranged in a position separated from a center position in planar view of the key top on a line that is parallel to a line connecting connection parts of the key top, which are connected with one pair out of one or more pairs of arms, and passes through the center position. The push button switch is arranged in a position on the board opposite an arrangement position of the pressing part.

Vehicle horn control device, embedded on a vehicle steering wheel, comprising: a base part (10); a control part (20), movable between a rest position and a depressed position; elastic return means (31), for pushing back the control part (20) to the rest position,—positioning means (41); an electrical circuit with at least one switch comprising a second contact terminal (51; 151; 251a, 251b; 21, 452), embedded on the control part (20), and a first contact terminal (52; 152; 252; 441), secured to the base part (10), characterized in that the positioning means (41) comprises the initial contact terminal (52; 152; 252; 441) arranged to position the control part (20) in the rest position, so as to close the switch when the control part (20) is in the rest position.

What is presented is a key module (110) for a keyboard. The key module (110) comprises a key tappet (220) comprising a coupling portion for coupling to a keycap for the key module (110). The key module (110) also comprises a module housing (230) formed to movably accommodate the key tappet (220), in order to enable a translational actuation movement of the key tappet (220) between a rest position and an actuated position relative to the module housing (230). The key module (110) further comprises a wire bracket (560) for providing tactile and/or acoustic feedback. The wire bracket (560) is elastically deflectable in the course of the actuation movement. The wire bracket (560) is bent with an overall bending angle of less than 360 degrees. The wire bracket (560) is fixed to the key tappet (220).

A key structure includes a switch circuit layer, a pedestal and a keycap. The pedestal includes a protrusion part and a hollow part. The keycap includes a buffering hook and a locking hook. The pedestal is disposed on the switch circuit layer. The keycap is disposed within the hollow part of the pedestal. The buffering hook and the locking hook of the keycap are aligned with the protrusion part of the pedestal. While the keycap is moved in a direction away from the switch circuit layer, the buffering hook is contacted with the protrusion part and then the locking hook is contacted with the protrusion part.

An actuating unit for an electrical switching element includes an actuating surface for actuating the electrical switching element, which is integrally a part of a surface of a housing for the electrical switching element, and is adapted to be deformed towards an interior of the housing for actuating the electrical switching element; an actuating pin integral with said actuating surface; and mechanically coupled to said actuating surface; and adapted to mechanically couple said actuating surface to said electrical switching element to actuate said electrical switching element; and a limiting pin integral with the actuating surface; and mechanically coupled to the actuating surface; and adapted to limit deformation of the actuating surface.

A switch device reduces an impact sound generated when the operation member returns to its original position. The switch device includes a housing member, an operation knob accommodated in the housing member and capable of being pushed, and a spring that urges the operation knob in a direction opposite to the pushing direction. The housing member includes a two-pronged stopper that regulates the movement of the operation knob in the opposite direction. The operation knob includes a tab that abuts on the two-pronged stopper. When the movement of the operation knob in the opposite direction is regulated, the two-pronged stopper and the tab make a line contact first.

A key structure comprises at least one key switch mounted on a surface of a substrate disposed inside a case of an electronic apparatus; at least one key top inserted in a key through-hole bored in the case, the at least one key top being designed to press the at least one key switch upon undergoing a displacement from outside the case toward inside the case; and a key stopper abutting, inside the case, the at least one key top that has undergone the displacement, to restrict a further outward-to-inward displacement of the at least one key top.