Abstract: The keyboard device includes a substrate, a key, a first elastic member, and a second elastic member. The substrate includes a top surface having an assembly area. The assembly area has a pivoting base including a standing portion and an extension portion extending from the standing portion. The key is liftably disposed over the assembly area. A pivoting hook is extending from the bottom of the key toward the assembly area, and one end of the pivoting hook includes a pivoting portion. The first elastic member and the second elastic member are disposed on the assembly area and elastically abutted against the bottom of the key, so that the pivoting portion is abutted against and pivoted to the extension portion, and a liftable distance is maintained between the extension portion and the bottom of the key.

Abstract: A key device includes a substrate, a key cap and a restoring member. The substrate includes a top surface and two pivot seats protruding on the top surface. The pivot seats are spaced from each other. Each pivot seat has an eave portion laterally extending from a top thereof. The eave portion has a bottom edge. The key cap is above the top surface. The key cap includes a side edge and two extending arms extending from the side edge. An end of each extending arm has a pivoting portion. The pivoting portions pivotally abut against the bottom edges of the eave portions respectively without contacting the top surface of the substrate. The restoring member is between the substrate and the key cap and abuts against a bottom of the key cap.

Abstract: A keyboard includes a substrate, a limit connecting member, a keycap, and a liftable connecting member. The assembly area of the substrate includes a through hole and a curved side wall standingly disposed on the substrate. The bottom edge of the curved side wall is adjacently connected to a periphery portion of the through hole. One side of the curved side wall facing the through hole includes a recessed groove. The limit connecting member is disposed on the assembly area and includes an inner fixing portion received in the through hole and an outer fixing portion enclosing the curved side wall and fixing with the inner fixing portion. The inner fixing portion has a protruding portion received in the recessed groove. The keycap is disposed on the assembly area. The liftable connecting member is connected between the keycap and the assembly area and is assembled with the limit connecting member.

Abstract: A keyboard device includes a substrate, a membrane circuit board, a flexible printed circuit board, a first fixing board, and a second fixing board. The substrate includes a top surface, a bottom surface, and a side edge. The substrate further includes an offset protrusion protruding from the top surface and forms a recessed area on the bottom surface. The membrane circuit board is disposed on the top surface. The membrane circuit board includes an outlet area correspondingly disposed on the offset protrusion. The flexible printed circuit board is disposed on the bottom surface. The flexible printed circuit board includes a fixed portion, a folded portion, and an electrical connection end. The fixed portion is received in the recessed area. The first fixing board is correspondingly disposed on the offset protrusion. The second fixing board is correspondingly received in the recessed area and assembled with the first fixing board.

Abstract: A keyboard device includes a substrate, keycaps, and a frame. The substrate has a top surface and a bottom surface and includes a welding-fixing portion. The welding-fixing portion includes a through hole and an arch-shaped bridge member. The arch-shaped bridge member is connected in the through hole and divides the through hole into partition holes. The arch-shaped bridge member has an arch portion and bridge bases. The arch portion protrudes from the top surface to form a recessed portion. The frame is disposed on the top surface and includes hollow holes respectively corresponding to the keycaps. The frame includes a welding member, and the welding member includes welding posts and a welding-fixing base. The welding posts respectively pass through spaces between the edge portion of the through hole and the arch-shaped bridge member. The welding-fixing base is received and fixed in the through hole and the recessed portion.

Abstract: A keyboard device includes a substrate, a connection hook, a keycap, and a connecting member. The substrate has a top surface including an assembly area. The connection hook is disposed on the assembly area and includes a fixed seat fixed on the substrate, a standing portion, and a reinforcement block. The standing portion is extending from the fixed seat and extending in a direction away from the fixed seat. A hook portion is laterally extending from a top end of the standing portion, the hook portion has a bottom edge. The reinforcement block is connected to the standing portion and the bottom edge. The keycap is disposed on the assembly area. The connecting member is connected between the keycap and the assembly area. The connecting member includes a shaft slidably pivoted at the bottom edge. An inner side of the shaft includes an avoidance groove corresponding to the reinforcement block.

Abstract: A keyboard includes a substrate, a limit connecting member, a keycap, and a liftable connecting member. The assembly area of the substrate includes a long fixation hole having two short sides, a first long side, and a second long side. A portion of the bottom surface of the substrate is further recessed to form a long bottom groove, and two ends of the long bottom groove are near to the two short sides. The limit connecting member is disposed on the assembly area and includes a fixed seat in the long fixation hole and a standing portion extending from the fixed seat. The fixed seat includes a lower wing plate correspondingly fixed in the long bottom groove. The keycap is disposed on the assembly area. The liftable connecting member is connected between the keycap and the assembly area and includes a shaft disposed on the limit connecting member.

Abstract: A sinkable keyboard device includes a substrate, keycaps, a slide plate, and a driving member. The keycaps are above the substrate and capable of lifting and sinking. Each keycap is provided with a first guide member. The slide plate is below and in parallel with the substrate. The slide plate includes a long side and a short side connected to the long side. The slide plate is provided with second guide members respectively corresponding to the first guide members. The driving member is on the short side of the slide plate. The driving member includes a driving motor. The driving motor drives the slide plate to slide relative to the substrate along the long side to make the second guide members respectively against the first guide members to drive the keycaps to relatively sink.

Abstract: A sinkable keyboard device includes a substrate, a first keycap, a second keycap, and a sliding plate. The substrate has an upper surface. The first keycap is liftably disposed on the upper surface and includes a first abutting portion. The second keycap is liftably disposed on the upper surface and includes a second abutting portion. The sliding plate is parallel to the substrate and movable relative to the upper surface along a sliding direction. The sliding plate includes a first guiding member and a second guiding member arranged along the sliding direction. The first guiding member has a first inclined guiding surface, and a first inclined angle is between the first inclined guiding surface and the upper surface. The second guiding member has a second inclined guiding surface, and a second inclined angle different from the first inclined angle is between the second inclined guiding surface and the upper surface.

Abstract: A key device includes a substrate, a key cap and a restoring member. The substrate includes a top surface and two pivot seats protruding on the top surface. The pivot seats are spaced from each other. Each pivot seat has an eave portion laterally extending from a top thereof. The eave portion has a bottom edge. The key cap is above the top surface. The key cap includes a side edge and two extending arms extending from the side edge. An end of each extending arm has a pivoting portion. The pivoting portions pivotally abut against the bottom edges of the eave portions respectively without contacting the top surface of the substrate. The restoring member is between the substrate and the key cap and abuts against a bottom of the key cap.

Abstract: A keyboard lifting structure includes a base, a cover frame covering the base and providing multiple openings, key caps coupled to the base by respective linking mechanisms, driving devices disposed in the base at one side relative to the respective key caps with respective slides thereof respectively abutted against the linking mechanisms of the key caps, and a lifting mechanism disposed between the cover frame and the base for lifting or lowering the cover frame relative to the base and simultaneously causing the driving devices to move the key caps upwardly out of the cover frame or downwardly into the inside of the respective openings of the cover frame.

Abstract: A keyboard lifting structure includes a base, a cover frame covering the base and providing multiple openings, key caps coupled to the base by respective linking mechanisms, driving devices disposed in the base at one side relative to the respective key caps with respective slides thereof respectively abutted against the linking mechanisms of the key caps, and a lifting mechanism disposed between the cover frame and the base for lifting or lowering the cover frame relative to the base and simultaneously causing the driving devices to move the key caps upwardly out of the cover frame or downwardly into the inside of the respective openings of the cover frame.

Abstract: The object of the present invention is to provide a key structure in which the first pivot axis and the second pivot axis of the supporting element are pivotally coupled with the base and the keycap respectively, the end of the stabilizer bar stored in the base, and the third pivot axis of the stabilizer bar pivotally coupled with the keycap. With the supporting element, the stabilizer bar and the elastic member, the keycap can move upward and downward with respect to the base. As the design or arrangement of the supporting element and the stabilizer bar is simplified, the assembly of the keyboard becomes easier, so that the manufacturing costs of the keyboard can be effectively reduced. Moreover, the supporting element is made of plastics and produced by molding, thus the manufacturing costs can be further reduced.