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.

A switch assembly including a socket, a top cap, and an intermediate cart located in the socket. The intermediate cart is slidable with the socket. The top cap is in a spherical or pivot engagement with the intermediate cart. An activation force of the sliding movement is lower than an activation force of the spherical or pivot movement.

A multi-directional input device has: a manipulation knob for which a movement manipulation in a horizontal direction and a pressing-down manipulation in a perpendicular direction are possible; a manipulation direction detection switch that is switched to an on-state when the movement manipulation is performed on the manipulation knob; and a common switch that is pressed down both when the movement manipulation is performed on the manipulation knob and when the pressing-down manipulation is performed on the manipulation knob, by which the common switch generates a different manipulation feeling than the manipulation direction detection switch and is switched to an on-state.

A keyswitch structure includes a base, a cap disposed corresponding to the base, a restoring member disposed between the base and the cap, and a tactile adjustment unit. The cap has a cam portion movable relative to the base. The restoring member is configured to provide a restoring force to enable the cam portion to move away from the base. The tactile adjustment unit is disposed corresponding to the cam portion and includes a holder and a tactile feedback member mounted on the holder. The holder is movable relative to the base to change a position of the tactile feedback member relative to the cam portion, so as to change a pressing force required for the cam portion to move toward the base.

An input device is characterized in that in a first stroke region in which an operation panel is pushed during a touch operation, a first reaction force that occurs by pushing the operation panel is generated by the first elastic portion. In a second stroke region including a stroke longer than in the first stroke region and a stroke for performing a push operation, a second reaction force that occurs by pushing the operation panel is a resultant force generated by a first elastic portion and the push switch. In the vicinity of a boundary between the first stroke region and the second stroke region, the amount of change in the first reaction force with respect to a stroke length is less than the amount of change in the second reaction force with respect to a stroke length.

A switch assembly including a socket, a top cap, and an intermediate cart located in the socket. The intermediate cart is slidable with the socket. The top cap is in a spherical or pivot engagement with the intermediate cart. An activation force of the sliding movement is lower than an activation force of the spherical or pivot movement.

A push switch contains a circuit substrate, two fixed contacts disposed on the circuit substrate, a dome-shaped spring which is disposed above the two fixed contacts and can be displaced between a first position in which the two fixed contacts are in a non-conductive state and a second position in which the two fixed contacts are in a conductive state and a conductive elastic member disposed on a surface of the dome-shaped spring facing the circuit substrate and having a surface facing the two fixed contacts. At least the surface of the conductive elastic member facing the two fixed contacts has conductivity. When the dome-shaped spring is displaced to the second position, the two fixed contacts are in the conductive state through the conductive elastic member.

A keyswitch structure includes a base, a cap disposed corresponding to the base, a restoring member disposed between the base and the cap, and a tactile adjustment unit. The cap has a cam portion movable relative to the base. The restoring member is configured to provide a restoring force to enable the cam portion to move away from the base. The tactile adjustment unit is disposed corresponding to the cam portion and includes a holder and a tactile feedback member mounted on the holder. The holder is movable relative to the base to change a position of the tactile feedback member relative to the cam portion, so as to change a pressing force required for the cam portion to move toward the base.

A push switch includes a movable contact member, a first fixed contact, and a second fixed contact. The push switch is in a first contact state in a first contact position where the movable contact member contacts the first fixed contact, and is in a second contact state in a second contact position where the movable contact member contacts the second fixed contact. The push switch is not switched to an on state in response to transitioning from an off state to the first contact state, and is switched to the on state in response to further transitioning to the second contact state, and the push switch is not switched from the on state to the off state in response to the second contact state being released, and is switched from the on state to the off state in response to the first contact state being further released.

Low-profile keysets and input devices having such low-profile keysets are described. In one example, the input device includes a support structure having a first and second surface; a bezel having a first and second surface, wherein the first surface of the bezel is adjacent to the first surface of the support structure, and the bezel comprises at least one opening; at least one key cap positioned within the at least one opening of the bezel, wherein each key cap is configured to move between a first and second position to trigger a function of the input device; and a fabric cover layer positioned adjacent to the second surface of the bezel, such that the bezel and the at least one key cap are positioned between the fabric cover layer and the support structure, the fabric cover layer is only adhered to the second surface of the bezel.