Keycap and key structure with same
AssigneePrimax Electronics Ltd.
InventorsTsu-Hui Yu, Hung-Bin Wu, Chun-Che Wu
Life of this patent
Estimating the term…
Abstract
A key structure is provided. The key structure includes a switch and a keycap. The switch includes a stem. The keycap is located over the switch. The keycap includes a pressing surface, an inner bottom surface and a protrusion post. The pressing surface and the inner bottom surface are opposed to each other. The protrusion post is protruded downwardly from the inner bottom surface. The protrusion post includes an insertion groove and at least one exhaust recess. When the stem is tightly fitted into the insertion groove, a gap is formed between the at least one exhaust recess and the stem.
Claims10
A key structure, comprising:
- a switch comprising a stem;
- and a keycap located over the switch, and comprising a pressing surface, an inner bottom surface and a protrusion post, wherein the pressing surface and the inner bottom surface are opposed to each other, the protrusion post is protruded downwardly from the inner bottom surface, and the protrusion post comprises an insertion groove and at least one exhaust recess, wherein when the stem is tightly fitted into the insertion groove, a gap is formed between the at least one exhaust recess and the stem;
- wherein the stem is a cross-shaped shaft, and the insertion groove is a cross-shaped groove;
- wherein the cross-shaped groove comprises a middle section and four extension sections, wherein the extension sections are in communication with the at least one exhaust recess;
- while the stem is tightly fitted into the insertion groove, the air in the exhaust recess is exhausted through the gap and an internal stress in the protrusion post is released.
A keycap assembled with a switch, the switch comprising a stem, the keycap comprising:
- a pressing surface;
- an inner bottom surface opposed to the pressing surface;
- and a protrusion post protruded downwardly from the inner bottom surface and protruded in a direction away from the pressing surface, wherein the protrusion post comprises an insertion groove and at least one exhaust recess, wherein when the stem is tightly fitted into the insertion groove, a gap is formed between the at least one exhaust recess and the stem;
- wherein the stem is a cross-shaped shaft, and the insertion groove is a cross-shaped groove;
- wherein the cross-shaped groove comprises a middle section and four extension sections, wherein the extension sections are in communication with the at least one exhaust recess;
- while the stem is tightly fitted into the insertion groove, the air in the exhaust recess is exhausted through the gap and an internal stress in the protrusion post is released.
Dependencies are inferred from the claim text.