KEYBOARD FOR ELECTRONIC DEVICE

摘要

An input mechanism is disclosed. The input mechanism includes a dome support structure (314) defining an opening (404) that extends through the dome support structure to face a case (303), a collapsible dome (402) positioned in the opening and engaged with the dome support structure, and a cover member (316) coupled to the dome support structure and covering the collapsible dome, thereby retaining the collapsible dome within the opening of the dome support structure. The dome support structure may also be a frame comprising retention channels (412) which capture a pivot pin (414) of a butterfly hinge (304). The collapsible dome (402) includes a protruding member such as an actuation arm (423) that extends into an interior volume of the dome and an array of suspension arms (904). The butterfly hinge (1300) may include wings (1302, 1304) and a living hinge (1306). A method of assembling a keyboard comprising a collapsible dome is also disclosed.