Keyboard for an electronic device
First Claim
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1. A switch assembly for a keyboard, comprising:
- a switch housing comprising;
a switch body defining an interior volume, a bottom surface, and a lateral width; and
a cover defining an opening;
a collapsible dome within the interior volume;
an actuation member positioned in the opening and comprising a retention feature that engages the switch body, thereby retaining the actuation member to the switch housing and retaining the collapsible dome within the interior volume;
a first terminal retained to the switch housing and comprising a first portion configured to be contacted by the collapsible dome when the actuation member is depressed and a second portion at the bottom surface and flush with the bottom surface within the lateral width, the first portion of the first terminal being flush with an inner surface of the switch housing; and
a second terminal partially encapsulated in a floor of the switch body such that a first portion of the second terminal is exposed to the interior volume through the floor of the switch body and a second portion of the second terminal is positioned at the bottom surface and flush with the bottom surface within the lateral width, the second terminal remaining in electrical contact with the collapsible dome when the actuation member is depressed and when the actuation member is undepressed, the first portion of the second terminal being flush with the inner surface of the switch housing;
wherein the switch housing, the collapsible dome, the actuation member, the first terminal, and the second terminal are assembled into an integrated unit configured to be mounted directly on a keyboard base.
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Abstract
A keyboard is disclosed. The keyboard includes a keyboard housing and a switch assembly coupled to the keyboard housing. The switch assembly includes a switch body defining an interior volume, a collapsible dome positioned in the interior volume, an actuation member configured to actuate the collapsible dome in response to an actuation of the actuation member, and a cover coupled to the switch body. The cover retains the actuation member to the switch body. The keyboard also includes a flexible material coupled to the keyboard housing and extending over the actuation member.
332 Citations
19 Claims
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1. A switch assembly for a keyboard, comprising:
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a switch housing comprising; a switch body defining an interior volume, a bottom surface, and a lateral width; and a cover defining an opening; a collapsible dome within the interior volume; an actuation member positioned in the opening and comprising a retention feature that engages the switch body, thereby retaining the actuation member to the switch housing and retaining the collapsible dome within the interior volume; a first terminal retained to the switch housing and comprising a first portion configured to be contacted by the collapsible dome when the actuation member is depressed and a second portion at the bottom surface and flush with the bottom surface within the lateral width, the first portion of the first terminal being flush with an inner surface of the switch housing; and a second terminal partially encapsulated in a floor of the switch body such that a first portion of the second terminal is exposed to the interior volume through the floor of the switch body and a second portion of the second terminal is positioned at the bottom surface and flush with the bottom surface within the lateral width, the second terminal remaining in electrical contact with the collapsible dome when the actuation member is depressed and when the actuation member is undepressed, the first portion of the second terminal being flush with the inner surface of the switch housing; wherein the switch housing, the collapsible dome, the actuation member, the first terminal, and the second terminal are assembled into an integrated unit configured to be mounted directly on a keyboard base. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A keyboard comprising:
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a keyboard housing; a keyboard base positioned on a portion of the keyboard housing, the keyboard base having a first contact and a second contact; a switch assembly mounted to the keyboard base, comprising; a switch body defining an interior volume, the switch body being placed directly on the keyboard base such that the first contact and the second contact are positioned within a footprint of the switch body; a first terminal formed within the switch body, the first terminal being in electrical contact with the first contact and having a portion exposed to the interior volume; a second terminal formed within the switch body, the second terminal being in electrical contact with the second contact and having a portion exposed to the interior volume, the first and second terminals having height dimensions equal to a vertical thickness of a bottom wall of the switch body; a collapsible dome positioned in the interior volume; an actuation member configured to actuate the collapsible dome in response to an actuation of the actuation member; and a cover coupled to the switch body and retaining the actuation member to the switch body; and a flexible material coupled to the keyboard housing and extending over the actuation member. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A keyboard comprising:
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a keyboard base; a group of switch assemblies coupled to the keyboard base, each switch assembly comprising; a switch housing; an actuation member within the switch housing; and a flexible material comprising a woven fabric covering the group of switch assemblies and comprising sensing elements configured to be coupled to touch-sensing circuitry of an electronic device, the sensing elements comprising; a first conductive element woven into the woven fabric and configured to act as a capacitive drive element; and a second conductive element woven into the woven fabric and configured to act as a capacitive sense element;
whereinthe switch housings of at least two adjacent switch assemblies abut one another. - View Dependent Claims (16, 17, 18, 19)
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Specification