A seesaw switch includes a rocker configured to rock by a press operation; a first fulcrum located at least at one end portion in a longitudinal direction of the rocker; a second fulcrum located between the one end portion and another end portion opposite to the one end portion in the longitudinal direction of the rocker; and a main switch disposed on the another end portion opposite to the one end portion at which the first fulcrum is located in the rocker and configured to have contact with the rocker due to rock of the rocker by the press operation, wherein a fulcrum of the rocker is switched between the first fulcrum and the second fulcrum in accordance with an amount of the press operation to the another end portion opposite to the one end portion at which the first fulcrum is located in the longitudinal direction of the rocker.

A push switch includes a case, a fixed contact member, a moving contact member, and a protective sheet. The case has a first surface with a recess and a second surface opposite from the first surface. The fixed contact member includes a fixed contact in the recess and a terminal on an outer surface of the case. The moving contact member is in the recess and includes a moving contact to contact with the fixed contact when the switch is subjected to a press operation. The protective sheet covers the recess. The case has a light-transmitting property and has a light incident surface and a light emergent surface. Light is incident on the light incident surface. At least part of the light that has entered through the light incident surface emerges through the light emergent surface.

A key module includes an actuation element with a cam nose and a contactor unit with a contact nose movable in the direction of the movement axis and transverse to the direction of the movement axis. Also, a contact element is formed and arranged for establishing electric contact with the contact nose. Moreover, the housing element accommodates the contact element, the contactor unit and the actuation element, wherein the actuation element and/or the cam nose includes a constructive element formed to deflect the contact nose from a rest position adjacent to the contact element in the direction along and/or transverse to the movement axis upon a defined movement of the actuation element, then abruptly release it so that the movable contact nose returns to the rest position and strikes the contact element and/or the housing element. Electric contact with the contact element is established and acoustic noise is produced.

A reconfigurable control device, in particular for use in a vehicle. Input keys on the reconfigurable control device allow a user to trigger different selection of modes. The control device is reconfigured by performing a first step of selecting a function mode by pressing one of the at least two input keys on the control device and a second step of selecting a function displayed on an array of mechanical switches. The selection of functions is refreshed with user trigger a fresh selection of mode.

The switch body includes: a wiring substrate where first to fourth fixed contact members are formed; and a movable contact member including a pressure receiving part opposite from the second fixed contact member, a first outer edge facing the first fixed contact member, and a second outer edge facing the third fixed contact member. The fourth fixed contact member is formed in a region outside a projection region being a projection of the movable contact member on the wiring substrate and is in a position facing the first outer edge when the second outer edge is moved to a region where the second fixed contact member is formed.

A control device includes a button assembly having one or more buttons and a button carrier that includes a plurality of resilient, independently deflectable spring arms. The control device may be configured as a wall-mounted keypad to control a load control device, or as a thermostat to control a temperature regulation appliance. The button carrier may be configured to prevent interference between the buttons during operation of the control device. The button assembly may be captured between a faceplate of the control device and a housing that is attached to a rear side of the faceplate. The control device may include one or more button retainers that are attached to the buttons and that are configured to align respective outer surfaces of the buttons relative to each other, and relative to the faceplate of the control device, when the buttons are in respective rest positions.

The present invention discloses a muted key module, an electronic device and an implementation method. The key module includes a switch member, a triggering mechanism and a supporting member, wherein the triggering mechanism is arranged corresponding to the switch member. The triggering mechanism can be moved along the contacting and separating directions of the switch member, thus to realize an ON or OFF operation of the switch member. A muting layer is arranged between the switch member and the supporting member. In the present invention, the muting layer is arranged between the switch member and the supporting member, so the impact force the between the triggering mechanism and the switch member can be cushioned by the muting layer, thereby reducing the noise produced when the key is pressed, thus to improve the quality of the final product as a whole.

What is presented is a key module (100) comprising an actuation element (105) comprising a cam nose (135), wherein the actuation element (105) is supported to be movable along a movement axis (200) in a housing element (130, 110). Furthermore, the key module (100) comprises a contactor unit (115) with a contact nose (140) movable in the direction of the movement axis (200) and transverse to the direction of the movement axis (200). Also, the key module (100) comprises a contact element (120) formed and arranged for establishing electric contact with the contact nose (140). Moreover, the key module (100) comprises the housing element (130, 110) for accommodating the contact element (120), the contactor unit (115) and the actuation element (105), wherein the actuation element (105) and/or the cam nose (135) comprises at least one constructive element (400) formed to deflect the contact nose (140) from a rest position adjacent to the contact element (120) in the direction along and/or transverse to the movement axis (200) upon a defined movement of the actuation element (105), then abruptly release it so that the movable contact nose (140) returns to the rest position and strikes the contact element (120) and/or the housing element (130, 110), wherein electric contact with the contact element (120) is established and acoustic noise is produced.

A push switch includes a housing, a fixed contact member, a movable contact member, and a first pressing member. The housing includes an opening and a compartment, the movable contact member includes a dome that protrudes toward the opening and is invertible, and the first pressing member includes a first fulcrum portion, a first load portion, and a first effort portion. The first fulcrum portion is disposed on one side of the first pressing member to contact the housing, the first load portion is disposed on another side of the first pressing member to press the movable contact member, and the first effort portion is disposed between the first fulcrum portion and the first load portion. Upon the first effort portion being pressed through the opening, the first load portion presses and inverts the dome of the movable contact member, and the movable contact member contacts the fixed contact member.

A keyswitch includes a cap, first and second support members slidably connected to the cap and opposite to each other, and first and second blocks formed on the cap. The cap is movable between a non-pressed position and a pressed position. The first support member abuts against the first block when the cap is located at the non-pressed position. The first block moves away from the first support member at a first gap when the cap moves downward from the non-pressed position. The first support member abuts against the cap when the cap is located at the non-pressed position, and abuts against the second block when the cap continues moving downward to the pressed position.