Multilayer switchdome systems and methods are presented that may enable improved tactile and strength properties and enhanced action. Embodiments may utilize a first layer of spring material (1) and at least a second layer of spring material (2) to form a switchdome component (4). In certain embodiments, the spring material layers may be conjoined by utilizing a switchdome bond (3) to create an integrated bonded composite spring sheet material (7). Various forming processes (8) may be employed in performing the varying embodiments of a method of switchdome component (4) forming. The varying forming processes (8) may improve the physical properties of the tactile switchdome component (4). The varying processes, spring materials, and switchdome bond types may be optimized for a particular application.

A movable contact includes a conductive member having an outer end having substantially a rectangular shape when viewed from above the conductive member. The conductive member includes a dome portion, a flange extending in a direction away from the dome portion, a connection portions provided at each of four corners of the rectangular shape, and a contact portion extending away from the flange. The connection portion, a first boundary portion where the connection portion is connected to the flange, and a second boundary portion where the connection portion is connected to the contact portion may constitute a drawn portion. Alternatively, the first and second boundary portions may be curved to be concave toward the dome portion.

A movable contact includes a conductive member having an outer end having substantially a rectangular shape when viewed from above the conductive member. The conductive member includes a dome portion, a flange extending in a direction away from the dome portion, a connection portions provided at each of four corners of the rectangular shape, and a contact portion extending away from the flange. The connection portion, a first boundary portion where the connection portion is connected to the flange, and a second boundary portion where the connection portion is connected to the contact portion may constitute a drawn portion. Alternatively, the first and second boundary portions may be curved to be concave toward the dome portion.

A surface mount device switch includes a pedestal, a metal dome and a conductive buffering sheet. A pedestal contact part of the pedestal is electrically connected with a circuit board. The conductive buffering sheet is arranged between the pedestal and the metal dome. Due to the conductive buffering sheet, the metal dome does not collide with the conducting part of the pedestal to generate the click sound. Consequently, the comfort of operating the touchpad module is enhanced. The present invention further provides a touchpad module and a computing device with the surface mount device switch.

A load-detecting device 1 includes a load detection sensor unit SU and a base 2 on which the load detection sensor unit SU is mounted, and the load detection sensor unit SU includes an upper surface 47S configured to be pressed by a seat cushion SC, a first electrode 52, and a second electrode 62. The upper surface 47S moves with respect to the mount surface 21S such that an angle of the upper surface 47S with respect to the mount surface 21S changes.

In a first aspect of the present disclosure, a push switch includes a resilient member that is made of metal, and the resilient member including a concave shape and an opening that is positioned at a center of the concave shape and at least two protrusions each protruding outward and downward with an oblique angle around the concave shape.

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 load-detecting device 1 includes a load detection sensor unit SU and a base 2 on which the load detection sensor unit SU is mounted, and the load detection sensor unit SU includes an upper surface 47S configured to be pressed by a seat cushion SC, a first electrode 52, and a second electrode 62. The upper surface 47S moves with respect to the mount surface 21S such that an angle of the upper surface 47S with respect to the mount surface 21S changes.

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.

In a first aspect of the present disclosure, a push switch includes a resilient member that is made of metal, and the resilient member including a concave shape and an opening that is positioned at a center of the concave shape and at least two protrusions each protruding outward and downward with an oblique angle around the concave shape.