The invention discloses a keyboard switch including a base, a cover covering the base to form a cavity, an upper guide core disposed in the cavity and an upper guide core limiting mechanism including a lower guide core elastomer, a lower guide core, a middle guide core spring and a middle guide core sequentially disposed on the base. The upper guide core and the middle guide core are connected through an upper guide core spring. The keyboard switch of the invention provides accuracy of the press-conduction displacement, accurate positioning of the conduction course, and adjustability of the press force, such that the press force becomes more balanced, and the keyboard switch is conducted when the guide core is pressed downwards. Thus, the overall press stability of the keyboard switch is improved.

An input device, including: a base, an upper cover, a lever assembly, a reset assembly, an electrical assembly, a spring switch, and a terminal assembly. The upper cover is disposed on the base and includes a central cavity. The lever assembly is disposed in the central cavity formed by the upper cover and the base, and includes a lever, an upper shoulder, and a lower shoulder. The lever includes an upper end and a lower end. The reset assembly is disposed below the lever assembly. The electrical assembly is electrically connected to the lever assembly, and includes a first slider, a second slider, a first carbon-film conductive dome, a first carbon-film resistor, a second carbon-film conductive dome, a second carbon-film resistor, and a trigger. The spring switch is disposed in the base and positioned below the trigger.

The present invention discloses a portable electronic apparatus, which includes a cover casing, a base casing, a first keyboard and a second keyboard. The base casing is pivoted to the cover casing. The base casing includes a keyboard containing portion and a first connecting portion, and the first connecting portion is disposed on the keyboard containing portion. The first keyboard and the second keyboard are disposed in the keyboard containing portion interchangeably, the first keyboard has a second connecting portion, and the second keyboard has a third connecting portion. When the first keyboard is disposed in the keyboard containing portion, the second connecting portion is electrically connected to the first connecting portion. When the second keyboard is disposed in the keyboard containing portion, the third connecting portion is electrically connected to the first connecting portion.

A keyswitch includes a cap, internal and external sleeves, a resilient arm, a base having a pillar, and an elastic member abutting against the internal sleeve and the base. The internal sleeve jackets the pillar, abuts against the cap and has a first outer annular surface with a transverse slot. The external sleeve jackets the internal sleeve and has a protruding block movably inserted into the transverse slot for guiding the external sleeve to rotate and a second outer annular surface having concave and convex portions and an arc-shaped bar. When the resilient arm abuts against a second position on the convex portion and the cap presses the external sleeve, the resilient arm crosses the arc-shaped bar. When the resilient arm abuts against a first position on the convex portion and the cap presses the external sleeve, the resilient arm does not need to cross the arc-shaped bar.

A button, a game controller and a remote controller are provided. The button comprises a cylindrical button cap (1) and a cylindrical button bracket (2). The button bracket (2) is provided with a first magnetic connector (3), and the button cap (1) is provided with a second magnetic connector (4) at a corresponding position. The button cap (1) is covered on the button bracket (2), and the button cap (1) and the button bracket (2) are connected by a magnetic attraction force between the first magnetic connector (3) and the second magnetic connector (4). The button cap (1) and the button bracket (2) may be further provided with engageable sawtooth structures (11, 21).

A game machine input device mounted on a game machine provided with a playfield; the game machine input device includes: an input unit provided toward the front of the playfield and configured to accept input; and a projection part configured to radiate light toward the playfield to project a first image in a region within the visual field of a player viewing the playfield.

A keyboard includes a fixed module and at least one key module. The fixed module includes a first circuit board and a first base plate. The first circuit board includes a trigger unit. The first base plate includes an accommodation space, and the trigger unit corresponds to the accommodation space. The key module is detachably disposed on the fixed module. The key module includes a keycap unit, a second base plate, a connecting member and an elastic member. The keycap unit partially corresponds to the accommodation space of the first base plate. The second base plate detachably connects to the fixed module. One end of the connecting member connects to the keycap unit, and the other end of the connecting member connects to second base plate. The elastic member is disposed on the second base plate and in contact with the keycap unit.

A button device for casino machines is provided including a base installed to overlap a display panel of a display device, a push button that overlaps the base and is disposed to move vertically with respect to the base, and has a central portion through which an image displayed on the display panel is visible and a flange portion that is stepped at an outer boundary of the central portion and extends outward, and a bezel that covers the push button so that the central portion is exposed and the flange portion is hidden, and is detachably coupled to the base.

A keyboard switch includes a base (1), a resistance-type pressure sensor (5) installed on the base (1), a spring (3) arranged in the base (1) and capable of being pressed on the resistance-type pressure sensor (5), a button (4) which presses the spring (3) and is in sliding fit with the base (1), and an upper cover (2) which presses the button (4) and is adaptive to the base (1). The resistance-type pressure sensor (5) includes two terminals (53) and an elastic sensitive element (51), the elastic sensitive element (51) being internally provided with a resistance strain gauge (52), and two leads (54) extending outwards from the resistance strain gauge (52); one ends of the two terminals (53) are respectively connected to the two leads (54), and the other ends of the two terminals (53) are separately connected to a PCB (6).

A mechanical keyboard with reduced number of keys includes many mechanical keys which are divided into a function section and an alphanumeric section disposed at one side of the function section. Each mechanical key has a keycap. The keycap has a light-transmitting character symbol on a top surface thereof. At least one mechanical key is a self-defined key in the function section or the alphanumeric section. Each keycap of the self-defined key has a top wall and a side wall facing a user. The top wall and the side wall respectively have a light-transmitting character symbol. Each self-defined key has a first lighting module and a second lighting module which are alternatively activated to light. The first lighting module corresponds to the top wall of the self-defined key. The second lighting module corresponds to the side wall of the self-defined key.