Metal switch for input device
First Claim
Patent Images
1. A key mechanism, comprising:
- a keycap;
a dome support structure positioned relative to the keycap and defining;
an opening; and
a travel limiting feature;
an actuation mechanism coupled to the keycap and configured to movably support the keycap relative to the dome support structure; and
a unitary metal dome positioned in the opening of the dome support structure and comprising an upstop member;
wherein the keycap is movable between an undepressed position and a depressed position; and
in the undepressed position, the upstop member contacts the travel limiting feature of the dome support structure, thereby limiting upward travel of the unitary metal dome.
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Abstract
A key mechanism is disclosed. The key mechanism comprises a keycap, a dome support structure positioned relative to the keycap and defining an opening, an actuation mechanism coupled to the keycap, and a collapsible dome positioned in the opening of the dome support structure. The actuation mechanism is configured to movably support the keycap relative to the dome support structure. The dome comprises an upstop member configured to limit upward travel of the collapsible dome.
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Citations
20 Claims
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1. A key mechanism, comprising:
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a keycap;
a dome support structure positioned relative to the keycap and defining;an opening; and a travel limiting feature; an actuation mechanism coupled to the keycap and configured to movably support the keycap relative to the dome support structure; and a unitary metal dome positioned in the opening of the dome support structure and comprising an upstop member;
wherein the keycap is movable between an undepressed position and a depressed position; and
in the undepressed position, the upstop member contacts the travel limiting feature of the dome support structure, thereby limiting upward travel of the unitary metal dome. - View Dependent Claims (2, 3, 4, 5, 6, 7, 19)
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8. A key mechanism, comprising:
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a keycap; a dome support structure defining a travel limiting feature; and a unitary metal dome coupled to the dome support structure and comprising;
an actuation region;
a first arm extending from the actuation region, and a second arm extending from the actuation region, wherein when the key mechanism is in an undepressed state, the first arm contacts the travel limiting feature of the dome support structure; and
the second arm defines a first end that is coupled to the dome support structure to retain the unitary metal dome to the dome support structure. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A dome for an input mechanism, comprising:
- an actuation region;
first and second cantilevered biasing arms extending from the actuation region;
each having a first shape defined at least in part by a first curvature; and
first and second cantilevered upstop arms extending from the actuation region, each having a second shape defined at least in part by a second curvature that is different than the first curvature. - View Dependent Claims (15, 16, 17, 18, 20)
- an actuation region;
Specification