Patent ID: 6559399
Filing Date: 2003-05-06
Classification: H01H

Abstract:
A height-adjusting collapsible mechanism for a button key, comprising:a key top; a substrate formed with a slide groove of predetermined size; a collapsible mechanism between the key top and the substrate, the collapsible mechanism having a first lever crossly engaged with a second lever at a pivotal point for supporting the key top so as to vertically move up and down relative to the substrate during use, the first and the second levers having respectively first and second bottom ends, the first and the second bottom ends being spaced from each other by an interval; and a stopper received in the slide groove and movable relative to the substrate between a first location and a second location, a distance between the first and second locations being determined by a size of the slide groove, at least one of the first and second bottom ends engaged with but movable relative to the stopper, the stopper further having a bordering edge located in said interval and in contact with the bottom end engaged with the stopper; wherein, when the stopper moves from the first location to the second location, the bordering edge moves the bottom end engaged therewith so as to change the interval between the first and second bottom ends, thereby changing a vertical up and down movement distance between the top key and the substrate.