Scissors-like linkage structure, key switch including the structure and method of assembling the same

A scissors-like linkage structure for use in a key switch, comprising:

• a first arm having a pivot and a protrusion, said protrusion provided on a sidewall of said first arm;
• and
• a second arm having a slot, said slot having a first portion and a second portion, said first portion being larger than said second portion in diameter, said second portion defining a wall;
• wherein said pivot selectively moves to said first portion and said second portion, said first arm is rotatably connected with said second arm in a first configuration and said protrusion contacts said second arm when said pivot moves to said second portion to engage with said wall of said second portion, and wherein and said first arm and said second arm are in a second configuration when said pivot moves to said first portion.

A scissors-like linkage structure for use in a key switch, comprising:

• a first arm having a pivot;
• and
• a second arm having a slot and a protrusion, said protrusion provided on a sidewall of said second arm, said slot having a first portion and a second portion, said first portion being larger than said second portion in diameter, said second portion defining a wall;
• wherein said pivot selectively moves to said first portion and said second portion, said first arm is rotatably connected with said second arm in a first configuration and said protrusion contacts said first arm when said pivot moves to said second portion to engage with said wall of said second portion, and wherein and said first arm and said second arm are in a second configuration when said pivot moves to said first portion.