Key switch device and keyboard
AssigneeFujitsu Component Limited
InventorJunichi Maruyama
Life of this patent
Estimating the term…
Abstract
A key switch device includes: a key top that includes an operating surface; a pair of link members that is interlocked with each other to move the key top upward and downward; a frame member that includes a leg portion extending downward and a flange portion provided at an end of the leg portion, and pivotably supports the pair of the link members; and a support plate that includes a through hole through which the leg portion and the flange portion penetrate, and a projection portion projecting upwardly from a part of an outer periphery of the through hole toward an inside of the through hole.
Claims7
A key switch device comprising:
- a key top that includes an operating surface;
- a pair of link members that is interlocked with each other to move the key top upward and downward;
- a frame member that includes a leg portion extending downward and a flange portion provided at an end of the leg portion, and pivotably supports the pair of the link members;
- and
- a support plate that includes an oblong through hole through which the leg portion and the flange portion penetrate, and a projection portion projecting upwardly from a part of an outer periphery of the oblong through hole toward an inside of the oblong through hole,
- wherein the oblong through hole is configured such that the frame member is horizontally slidable between a first position of the oblong through hole where the flange portion engages with the projection portion and a second position of the oblong through hole where the flange portion is removed from the projection portion.
A keyboard, comprising:
- a support plate;
- a plurality of key switch devices, each of the key switch devices including a key top;
- a pair of link members that is interlocked with each other and support the key top so as to move upward and downward;
- and
- a frame member that includes a leg portion extending downward and a flange portion provided at an end of the leg portion, and pivotably supports the pair of the link members,
- wherein the support plate includes an oblong through hole through which the leg portion and the flange portion penetrate, and a projection portion projecting upwardly from a part of an outer periphery of the oblong through hole toward an inside of the oblong through hole, and
- wherein the oblong through hole is configured such that the frame member is horizontally slidable between a first position of the oblong through hole where the flange portion engages with the projection portion and a second position of the oblong through hole where the flange portion is removed from the projection portion.
A key switch device comprising:
- a key top that includes an operating surface;
- a pair of link members that is interlocked with each other to move the key top upward and downward;
- a frame member that includes a leg portion extending downward and a flange portion provided at an end of the leg portion, and pivotably supports the pair of the link members;
- and
- a support plate that includes a through hole through which the leg portion and the flange portion penetrate, and a projection portion projecting upwardly from a part of an outer periphery of the through hole toward an inside of the through hole,
- wherein the projection portion has a U shape in top view, and
- wherein an inner width of the U shape is greater than a diameter of the leg portion and smaller than a diameter of the flange portion.
Dependencies are inferred from the claim text.