| 摘要 |
A rotary damper has a shaft (5) and a torque control mechanism which are accommodated in a chamber (3) filled with a viscous fluid (6). The chamber (3) is divided into a first compartment and a second compartment (3a,3b). The torque control mechanism comprises an auxiliary chamber (4) defined by a partition wall (7) disposed adjacent to the chamber (3) in communication therewith, first and second communication holes (71,72) defined in the partition wall (7) and providing fluid communication between the first and second compartments (3a,3b) and the auxiliary chamber (4), and a check valve (9) for preventing the viscous fluid from flowing in the first communication hole (71) from the auxiliary chamber (4) toward the first compartment. <IMAGE> |
