A key switch includes a movable part configured to be moved by a pressing operation, a support mechanism that movably supports the movable part, an electrical connector including multiple pairs of contacts of upper electrodes and lower electrodes, and a disc spring that is disposed between the movable part and the electrical connector and configured to be elastically deformed by movement of the movable part and to press the electrical connector. The multiple pairs of contacts are provided for one movable part. When the disc spring is deformed by the movement of the movable part, the disc spring is configured to simultaneously press the multiple pairs of contacts provided for the corresponding movable part.

A pressing mechanism of a push switch including an operation member configured to be pressed, and a leaf spring member that includes a dome portion bulging in a dome shape and an opening portion provided in a central portion of the dome portion, the leaf spring member generating a tactile sensation on the operation member by an inverting operation of the dome portion in response to being pressed by the operation member, wherein the operation member includes a first pressing portion configured to press a movable contact point member against a fixed contact point member through the opening portion and a second pressing portion configured to press the dome portion.

The invention relates to a device (2) for detecting manipulation on an object comprising an actuating switch (22) which has a snap-action disk (220) which can be switched between a first position and a second position, and an actuating element (21) which has a body (210) and an actuating stud (211), projecting from the body of the actuating element (21), for acting on the snap-action disk (220), wherein the actuating stud (211) has a first stiffness. According to the invention a contact element (213), arranged on the actuating stud (211), acts on the snap-action disk (220), wherein the contact element (213) has a second stiffness which is greater than the first stiffness.

In a first aspect of the present disclosure, a spring plate includes a central portion; a first leg portion projecting outward from an edge of the central portion; and a second leg portion projecting outward from the edge of the central portion. The first leg portion includes a hollow portion that is positioned within an outline of the first leg portion in a top plan view, and the second leg portion includes a hollow portion that is positioned within an outline of the second leg portion in a top plan view.

A slim-type key structure includes a keycap, a base plate, a scissors-type connecting element, a membrane circuit board, a metal dome and a positioning plate. The keycap can be pressed. The scissors-type connecting element is located under the keycap. The membrane circuit board is disposed on the base plate. The metal dome is disposed on the membrane circuit board. In response to a pressing force, the metal dome is subjected to a compressed deformation to press the membrane circuit board. When the pressing force is released, a restoring force is generated and the metal dome is restored to an original shape in response to the restoring force. The positioning plate includes a pressing post. The pressing post is aligned with a center of the metal dome and a center of the keycap. The positioning plate is fixed on the metal dome through an adhesive.

A key switch includes a movable part configured to be moved by a pressing operation, a support mechanism that movably supports the movable part, an electrical connector including multiple pairs of contacts of upper electrodes and lower electrodes, and a disc spring that is disposed between the movable part and the electrical connector and configured to be elastically deformed by movement of the movable part and to press the electrical connector. The multiple pairs of contacts are provided for one movable part. When the disc spring is deformed by the movement of the movable part, the disc spring is configured to simultaneously press the multiple pairs of contacts provided for the corresponding movable part.

An actuator is provided for creating an electrical contact between two tracks of a printed circuit board. The actuator includes a polymer part, forming an arm including one contact end and one end for setting in motion; and a metal part, fixedly attached to the contact end, having a general shape of a cap.

In a first aspect of the present disclosure, a spring plate includes a central portion; a first leg portion projecting outward from an edge of the central portion; and a second leg portion projecting outward from the edge of the central portion. The first leg portion includes a hollow portion that is positioned within an outline of the first leg portion in a top plan view, and the second leg portion includes a hollow portion that is positioned within an outline of the second leg portion in a top plan view.

An electrical multiple stage switch assembly includes an assembly casing, a first component carrier, and at least one multiple stage switch including a first disc contact, at least one second disc contact, and an actuator. The first and second disc contacts are positioned with their centers substantially aligned, and the first and second disc contact are adapted to flex into an electrical connection when the actuator is pressed and to flex back into a non-electrical connection when the actuator is released. A controlling member includes a controlling part for each switch, and the controlling part includes a spacing member adapted to limit the smallest possible distance between adjacent component carriers.

An input device may include: (a) a connector that recognizes a connection of an external device; (b) a switch located at an upper end portion of the connector and that connects an electrical signal when a physical input of a threshold pressure or more is pressed; (c) a substrate connected to a connection terminal of the switch and mounted at a surface in which the switch is not located; and/or (d) a key base that presses the switch.