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The trunk balance hinge refers to a hinge structure that uses elastic elements to balance the gravity of the trunk lid when it is opened and closed. Because the balance hinge has the advantages of simple structure, sufficient strength, reliability and durability, most models, especially mid- to low-end models, , basically adopt this structure of hinge, and its elastic element adopts torsion bar.
During the use of the trunk lid, it is generally required that after the opening device is activated, it can automatically pop up to a certain height, and it must remain stationary in the half-open (certain opening angle) state to prevent it from falling and injuring people. At the same time, it must be in the most open position. It has enough holding power to prevent it from falling and closing due to wind force.
