| 摘要 |
A friction brake device 10 having: friction members 14, 16 which are pressed against a pair of friction surfaces 20S, 22S that are rotatable around a rotation axis 18 and opposes to each other; a force increasing mechanism 46 which transmits rotational torque between the friction members, transforms the rotational torque to the force separating the friction members along the rotation axis through a wedge action, and thereby increasing the pressing force; a pressing force control mechanism 34 which control force with which at least one of the friction members is pressed against the associated friction surface; and a normal position-recovering mechanism 142 which returns the friction members 14, 16 to their normal positions when the force controlled by the pressing force control mechanism 34 is 0. |
