| 摘要 |
A ROTARY DAMPER INCLUDES A ROTOR (1) HAVING A DRIVEN GEAR (2) FORMED ON THE FRONT SURFACE SIDE THEREOF AND TWO CYLINDRICAL PROJECTIONS (4, 5) PROJECTING FROM THE REAR SURFACE THEREOF; A STATIONARY MEMBER (11) HAVING A CYLINDRICAL PERIPHERAL WALL (15), A CYLINDRICAL PARTITION (13) AND ANOTHER CYLINDRICAL PARTITION (14) ALL PROJECTING THEREFROM; A SUPPORT SHAFT (12) PROVIDED ON ONE OF THE ROTOR (1) AND THE STATIONARY MEMBER (111); A ROUND ENGAGEMENT RECESS (3) PROVIDED IN THE OTHER OF THE ROTOR (1) AND THE STATIONARY MEMBER (11) AND MATED WITH THE SUPPORT SHAFT (12); AND VISCOUS FLUID DISPOSEDIN A GAP BETWEEN THE CYLINDRICAL PROJECTIONS (4, 5) AND THE CYLINDRICAL PARTITIONS (13, 14). THE TWO CYLINDRICAL PROJECTIONS (4, 5) ARE INSERTED INSIDE THE CYLINDRICAL PERIPHERAL WALL (15). THE CYLINDRICAL PARTITION (13) IS INSERTED BETWEEN THE TWO CYLINDRICAL PROJECTIONS (4, 5).ONE OF THE CYLINDRICAL PROJECTIONS (5) IS INSERTED BETWEEN THE TWO CYLINDRICAL PARTITIONS (13, 14). AT LEAST ONE OF THEINNER SURFACE OF THE ROUND ENGAGEMENT RECESS (3) AND THE OUTER SURFACE OF THE SUPPORT SHAFT (12) IS PROVIDED WITH GROOVES (3D, 12D) EXTENDING IN THE AXIAL DIRECTION.
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