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.

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.

An electric switch of the normally closed type has a housing including a lower part that supports a fixed contact track, an internal contact blade that is resiliently deformable in order to assume a bottom rest position in order to establish an electric switching way, a first high non-stable position, in which the switching track is interrupted, and a second high stable position, in which the electric switching track is interrupted and in which the internal contact blade is locked such as by retractable locking structure, and an actuator to control the deformations of the internal contact blade.

An electric switch of the normally closed type has a housing including a lower part that supports a fixed contact track, an internal contact blade that is resiliently deformable in order to assume a bottom rest position in order to establish an electric switching way, a first high non-stable position, in which the switching track is interrupted, and a second high stable position, in which the electric switching track is interrupted and in which the internal contact blade is locked such as by retractable locking structure, and an actuator to control the deformations of the internal contact blade.

Nanoelectromechanical systems (NEMS) devices/switches and methods for implementing and fabricating the same with conducting contacts are provided. A nanoelectromechanical system (NEMS) switch can include a substrate; a source cantilever formed over the substrate and configured to move relative to the substrate; a drain electrode and at least one gate electrode formed over the substrate; wherein the source cantilever, drain and gate electrodes comprises a metal layer affixed to a support layer, at least a portion of the metal layer at the contact area extending past the support layer; and an interlayer sandwiched between the support layer and substrate.

Nanoelectromechanical systems (NEMS) devices/switches and methods for implementing and fabricating the same with conducting contacts are provided. A nanoelectromechanical system (NEMS) switch can include a substrate; a source cantilever formed over the substrate and configured to move relative to the substrate; a drain electrode and at least one gate electrode formed over the substrate; wherein the source cantilever, drain and gate electrodes comprises a metal layer affixed to a support layer, at least a portion of the metal layer at the contact area extending past the support layer; and an interlayer sandwiched between the support layer and substrate.

A pushbutton assembly comprises a base, a pushbutton which is displaceable in a push direction relative to the base from an unactuated rest position into an actuated position and vice versa, and a return device which biases the pushbutton towards the rest position. Further, a self-centering device is provided which comprises a button part and a base part, the button part and the base part of the self-centering device cooperating in the rest position of the pushbutton so as to position the pushbutton in a centered position with respect to the base.

A pushbutton assembly comprises a base, a pushbutton which is displaceable in a push direction relative to the base from an unactuated rest position into an actuated position and vice versa, and a return device which biases the pushbutton towards the rest position. Further, a self-centering device is provided which comprises a button part and a base part, the button part and the base part of the self-centering device cooperating in the rest position of the pushbutton so as to position the pushbutton in a centered position with respect to the base.

The aim of the present invention is an electric switch of the normally closed type comprising a housing comprising a lower part that supports a fixed contact track, an internal contact blade that is resiliently deformable in order to assume a bottom rest position in order to establish an electric switching way, a first high non-stable position, in which the switching track is interrupted, and a second high stable position, in which the electric switching track is interrupted and in which the internal contact blade is locked such as by retractable locking means, and an actuator to control the deformations of the internal contact blade.

The aim of the present invention is an electric switch of the normally closed type comprising a housing comprising a lower part that supports a fixed contact track, an internal contact blade that is resiliently deformable in order to assume a bottom rest position in order to establish an electric switching way, a first high non-stable position, in which the switching track is interrupted, and a second high stable position, in which the electric switching track is interrupted and in which the internal contact blade is locked such as by retractable locking means, and an actuator to control the deformations of the internal contact blade.