| 摘要 |
<p>The invention provides a rotary damper capable of changing the rotation damping force in correspondence to the rotation speed of a rotor along arbitrary rotation directions. The rotary damper (1) comprises: a damper shell (2) with a liquid chamber (10) filled with viscous fluid; and the rotor (3), wherein one end of the rotor is rotationally accommodated in the liquid chamber, and the other end protrudes from the damper shell. The rotary damper is characterized in that: a concave portion (16) communicated with the liquid chamber is formed on an inner peripheral surface (15) for dividing a lateral peripheral wall (6) of the damper shell of the liquid chamber, and a movable plate (21) is arranged on the concave portion and used for dividing the liquid chamber and the concave portion, moreover the pressure of the liquid chamber correspondingly displaces towards the inner part of the concave portion.</p> |
