Keyswitch

A keyswitch comprising:

• a board having at least one pivot portion and a first magnetic portion, the at least one pivot portion having two bending sheets arranged alternately with each other;
• a cap;
• a switch disposed between the board and the cap;
• and
• a support device comprising a first support member and a second support member, the first support member having a first end portion, a second end portion, a second magnetic portion corresponding to the first magnetic portion and a triggering portion corresponding to the switch, the first end portion being movably connected to the cap, the second end portion having a limiting arm, the limiting arm extending toward the two bending sheets to be inserted between the two bending sheets to make the second end portion rotatably connected to the at least one pivot portion, the second support member having a third end portion, a fourth end portion and an abutting portion, the third end portion being movably connected to the cap, the fourth end portion being movably connected to the board, the abutting portion being located under the second magnetic portion to support the second magnetic portion;
• wherein when the cap is not pressed, a magnetic attraction force between the first magnetic portion and the second magnetic portion keeps the cap at a non-pressed position;
• when the cap is pressed by an external force to make the second magnetic portion separate from the first magnetic portion, the triggering portion triggers the switch;
• when the external force is released, the magnetic force drives the second magnetic portion to approach the first magnetic portion, so as to make the cap move back to the non-pressed position with the support device.

A keyswitch comprising:

• a board having a first pivot portion, the first pivot portion having two first bending sheets arranged alternately with each other, at least one of the two first bending sheets having a planar curved arm, the planar curved arm extending along a planar direction of the board to be connected to the board;
• a cap;
• a switch disposed between the board and the cap;
• a support device comprising a first support member, the first support member having a first end portion, a second end portion and a triggering portion corresponding to the switch, the first end portion being movably connected to the cap, the second end portion having a first limiting arm, the first limiting arm extending toward the two first bending sheets to be inserted between the two first bending sheets to make the second end portion rotatably connected to the first pivot portion;
• and
• a returning device disposed between the cap and the board for driving the cap to move back to a non-pressed position;
• wherein when the cap is not pressed, the returning device keeps the cap at a non-pressed position;
• when the cap is pressed by an external force, the triggering portion triggers the switch;
• when the external force is released, the returning device drives the cap to move back to the non-pressed position with the support device.