Adjustable double-deck elevator

A variable double deck elevator comprising:

• a first car
• a second car
• a car frame aligning the first and second cars in a vertically superimposed relationship,
• a linking mechanism linking the first and second cars for positioning each car vertically relative to the other car, wherein the linking mechanism comprises,
• a first link and a second link in which approximately the center part is rotatably coupled to the car frame, a third link and a fourth link respectively coupled to the top ends of said first link and second link, and a fifth link and a sixth link respectively coupled to the bottom ends of said first link and second link, with the top ends of said third link and fourth link being coupled to the upper car and with the bottom ends of said fifth link and sixth link being coupled to the lower car;
• the first car exerts a first downward force on the linking mechanism,
• the second car exerts a second downward force on the linking mechanism, and
• the linking mechanism balances the first and second forces each against the other.