Pushbutton in keyboard (2)
First Claim
Patent Images
1. An improved positioning structure of pushbutton in keyboard (2), comprising:
- a base;
a printed circuit board (PCB) attached on said base having a plurality of pivot-jointing portions protrusively disposed on its surface for defining a plurality of enclosed assembly-jointing sections;
a link (bridge) combinably mounted on the assembly-jointing section of said PCB, wherein a positioning shaft and two movable shafts, which, the latter, are axially jointed with said pivot-jointing portion, are disposed at two ends of said link respectively;
an elastomer disposed on said link; and
a key cap combinably mounted on said elastomer and coupled with the positioning shaft of said link;
By virtue of abovesaid components, a waterproof and thinner keyboard made in a relatively lower cost being realizable.
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Abstract
An improved positioning structure of pushbutton in keyboard (2) comprises a base, a printed circuit board (PCB) attached on the base having a plurality of pivot-jointing portions protrusively disposed on its surface for defining a plurality of enclosed assembly-jointing sections, a link (bridge) disposed at the assembly-jointing section having a movable shaft axially jointed with the pivot-jointing portion, an elastomer arranged on the link, and a key cap disposed on the elastomer being coupled with a positioning shaft at one end of the link. By assembling the abovesaid components, a waterproof and thinner keyboard at lower cost is realizable.
48 Citations
7 Claims
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1. An improved positioning structure of pushbutton in keyboard (2), comprising:
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a base; a printed circuit board (PCB) attached on said base having a plurality of pivot-jointing portions protrusively disposed on its surface for defining a plurality of enclosed assembly-jointing sections; a link (bridge) combinably mounted on the assembly-jointing section of said PCB, wherein a positioning shaft and two movable shafts, which, the latter, are axially jointed with said pivot-jointing portion, are disposed at two ends of said link respectively; an elastomer disposed on said link; and a key cap combinably mounted on said elastomer and coupled with the positioning shaft of said link; By virtue of abovesaid components, a waterproof and thinner keyboard made in a relatively lower cost being realizable. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification