A push switch includes a movable contact including a dome part that is shaped like a dome and configured to be inverted in shape when pressed, and a fixed contact including a first fixed contact, the movable contact being configured to be brought into contact with and away from the first fixed contact. The push switch is configured such that an operating load necessary to press the movable contact gradually increases after the movable contact starts to be pressed, decreases thereafter when the dome part is inverted, and increases again when the movable contact is further pressed, and the dome part contacts the first fixed contact after an inflection point at which the decreased operating load starts to increase again.

Key switches of the inventive subject matter are designed to give users the tactile feel of key switches from expensive mechanical keyboards without drawback typically associated with alternative key switches. In some embodiments, key switches described in this application are designed to function with a sheet of membrane switches, while in other embodiments, key switches of the inventive subject matter incorporate optical switching in place of membrane switching. Embodiments for use with membrane switching feature a plunger and rocker combination that prevents the pressure from a user's key press from being directly transferred to a membrane switch, thereby reducing wear and tear. In optical switching embodiments, pressing the key switch causes an actuator, e.g., come between an optical emitter/receiver pair to register a key press.

A keyboard device includes plural key structures. Each key structure includes a base plate, a keycap, a membrane circuit board, a connecting member and an elastic element. The keycap includes a pressing post. The membrane circuit board is arranged between the base plate and the keycap. The connecting member is penetrated through the membrane circuit board and connected between the keycap and the base plate. The keycap is movable upwardly or downwardly relative to the membrane circuit board. The elastic element is arranged between the keycap and the membrane circuit board. The elastic element includes a resilience piece and plural supporting ribs. The plural supporting ribs are arranged between the resilience piece and the keycap. The plural supporting ribs are contacted with the pressing post of the keycap. Consequently, there is a gap between the pressing post and the resilience piece.

A base element and at least one switching element are included in an operator control device which may be disposed in a vehicle. By closing at least one electrical contact, the switching element is moveable from a first position into a second position relative to the base element. The operator control device can also include at least one pushbutton switch moveable relative to the base element between a position of rest and at least one activation position. The operator control device can further include at least one restoring element, formed of silicone and supported on the base element and on the pushbutton switch, which can be elastically deformed by moving the pushbutton switch from the position of rest into the activation position. Using the restoring element, the pushbutton switch can be moved from the activation position into the position of rest by relaxing the restoring element.

Key switches of the inventive subject matter are designed to give users the tactile feel of key switches from expensive mechanical keyboards without drawback typically associated with alternative key switches. In some embodiments, key switches described in this application are designed to function with a sheet of membrane switches, while in other embodiments, key switches of the inventive subject matter incorporate optical switching in place of membrane switching. Embodiments for use with membrane switching feature a plunger and rocker combination that prevents the pressure from a user's key press from being directly transferred to a membrane switch, thereby reducing wear and tear. In optical switching embodiments, pressing the key switch causes an actuator, e.g., come between an optical emitter/receiver pair to register a key press.

Key switches of the inventive subject matter are designed to give users the tactile feel of key switches from expensive mechanical keyboards without drawback typically associated with alternative key switches. In some embodiments, key switches described in this application are designed to function with a sheet of membrane switches. These embodiments feature a plunger and rocker combination that prevents the pressure from a user's key press from being directly transferred to a membrane switch, thereby reducing wear and tear.

A magnetic press key includes a housing and a central shaft body disposed in the housing, wherein the bottom of the central shaft body is extended into the housing, and the central shaft body can reciprocate in the vertical direction in a base after the key cap seat is pressed, a first magnetic element is provided on the upper section of the central shaft body, a second magnetic element which can move up and down is provided under the coaxiality of the first magnetic element, and a third magnetic element is provided in the housing. The first magnetic element and the second magnetic element generate repulsive or attractive magnetic force, and the magnitude of the repulsive or attractive magnetic force can be adjusted by changing the magnitude of the energizing current of the energized coil, so that the use hand feeling of the key cap seat is improved.

Key switches of the inventive subject matter are designed to give users the tactile feel of key switches from expensive mechanical keyboards without drawback typically associated with alternative key switches. In some embodiments, key switches described in this application are designed to function with a sheet of membrane switches. These embodiments feature a plunger and rocker combination that prevents the pressure from a user's key press from being directly transferred to a membrane switch, thereby reducing wear and tear.

A push switch includes: a case including a fixed contact; a movable member, a pushing element, and a support. The movable member includes a movable contact. The movable member is disposed at a location to face the fixed contact and is movable between an ON-position and an OFF-position. The pushing element is disposed at a location to face the movable member and is configured to receive external force to push the movable member. The support has such a property that until a travel distance of the pushing element reaches a first threshold, a load applied from the support to the pushing element increases, and when the travel distance of the pushing element reaches the first threshold, the load applied from the support 6 to the pushing element decreases.

A dynamic keyboard able to change and adapt the functionality of the keyboard depending on the scenario in which it is being implemented. Each key can have one or more modes assigned to it that is able to change depending on the use. Groups of keys can have more than one mode assigned to it. Different groups of keys can have different modes assigned to them.