Pivot shaft torque mechanism

A pivot shaft torque mechanism, comprising:

• a flexibly bendable flexible plate (1);
• a plurality of pivot shafts (2) being equally spaced on a surface of the flexible plate (1) and movable synchronously in a linked motion;
• and having a line of centers (L) joining centers of the pivot shafts (2) extended in parallel with the flexible plate (1);
• and
• a torque chain unit (340) consisting of a first torque plate set (3) and a second torque plate set (4);
• the first torque plate set (3) including a plurality of first torque plates (30) located at a first linking position, and each of the first torque plates (30) being provided with a first shaft hole (31) and a first elongated shaft hole (32);
• the second torque plate set (4) including a plurality of second torque plates (40) located at a second linking position, which is in parallel with the first linking position, and each of the second torque plates (40) being provided with a second shaft hole (41) and a second elongated shaft hole (42);
• the second shaft holes (41) being located corresponding to the first elongated shaft holes (32), and the second elongated shaft holes (42) being located corresponding to the first shaft holes (31);
• each of the pivot shafts (2) being extended through and pivotally connected to each pair of correspondingly located first shaft hole (31) and second elongated shaft hole (42) or each pair of correspondingly located first elongated shaft hole (32) and second shaft hole (41), such that the second torque plates (40) and the first torque plates (30) overlap each other and are arranged alternately to be connected serially via the pivot shafts (2);
• and the flexible plate (1) being changeable between a flat state and a bent state in response to an external force applied thereto, while the first and the second elongated shaft holes (32, 42) providing the pivot shafts (2) with a space for displacement to adapt to a change of interval between the first and the second torque plates (30, 40) and between the pivot shafts (2) when the flexible plate (1) is extended or bent.