Keyboard device

A keyboard device comprising:

• a base plate that has a base plate body;
• a top plate that has
• a top plate body having at least one open hole, and cooperating with said base plate body of said base plate to define a movement space, and
• a plurality of lower pivoting joint portions extending upwardly from said top plate body;
• an adjustment module that has
• an intermediate plate body disposed in said movement space, and movable along an axis extending in a front-rear direction,
• at least one accommodating seat fixed to said intermediate plate body, and extending through said at least one open hole, and
• at least one torsion resilient member mounted to said at least one accommodating seat, and having
• a resilient member body that is disposed in said at least one accommodating seat, and
• a biasing portion that is connected to said resilient member body;
• at least one keycap that is disposed above said top plate and said at least one accommodating seat, and that has
• an outer surface,
• an inner surface opposite to said outer surface, and
• a plurality of upper pivoting joint portions extending from said inner surface;
• a sensor module that is disposed between said top plate body and said at least one keycap, and that has at least one pivoting joint hole, said lower pivoting joint portions extending through said at least one pivoting joint hole;
• at least one pushing member that is disposed between said sensor module and said at least one keycap for resiliently supporting said at least one keycap thereon;
• and
• at least one scissor-switch module that is connected between said upper pivoting joint portions and said lower pivoting joint portions, and that surrounds said at least one pushing member, said at least one scissor-switch module including first and second frame units that are pivotably connected to each other, said first frame unit having a first frame member and a pressing block that is fixed to said first frame member;
• wherein said intermediate plate body is moveable in said movement space along the axis extending in the front-rear direction to move between a first pressure position and a second pressure position;
• wherein, when said intermediate plate body is in the first pressure position, said biasing portion of said at least one torsion resilient member is disposed outside of a movement path of said pressing block and is not pressed by said pressing block during pivot action of said first and second frame units;
• and
• wherein, when said intermediate plate body is in the second pressure position, said biasing portion is disposed under said pressing block and on the movement path of said pressing block, such that said biasing portion is pressed by said pressing block during the pivot action of said first and second frame units.