Rotary damper for damping the rotary movement of a belt shaft of a safety belt winder in a vehicle comprises a housing, an operating chamber filled with a damping medium, a shaft, a convection element and a delimiting wall

摘要

Rotary damper (1) comprises a housing (2), an operating chamber (9) filled with a damping medium and partially delimited by the housing, a shaft (6) positioned in the housing to rotate about an axis of rotation and impinged with a torque to be dampened, a convection element (18) connected to the shaft and arranged in the operating chamber and a delimiting wall (30) moving relative to the housing to change the operating chamber volume. Preferred Features: A delimiting unit delimits the movement of the delimiting wall. A spring element (48) interacts with the delimiting wall and the delimiting unit.