| 摘要 |
Disclosed is a device ( 10 ) for damping or decelerating the movement of parts of pieces of furniture which are movable relative to a stationary part thereof. Said device comprises a cylinder ( 12 ) inside which a piston ( 10 ) is mounted so as to be movable in a longitudinal direction and which forms working chambers ( 20, 22 ) filled with a liquid damping medium on the opposite faces thereof within the cylinder, the dimensions of said working chambers being modifiable according to the position of displacement of the cylinder. The liquid damping medium can be transferred in a throttled manner between the working chambers via overflow port ( 34, 38 ) or ducts ( 42 ) which are disposed in the piston ( 14 ) and/or in the cylinder ( 12 ). A piston rod ( 24 ) which is sealingly guided out of the associated end of the cylinder is connected to one side of the piston. The movement of the part of the piece of furniture which is to be damped or decelerated is transmitted to the piston via the outer end of the piston rod ( 24 ) facing away from the piston. A volume compensating mechanism is provided for compensating the total volume of the working chambers ( 20, 22 ), which changes as a result of the volume displaced by the piston rod when the same is inserted into the cylinder. The piston rod ( 24 ) is coupled to the piston that is provided with overflow ports ( 34 ) so as to be movable by a given longitudinal path while encompassing a non-return disk ( 36 ) in the end region facing the piston. Said non-return disk ( 36 ) is provided with at least one overflow port ( 38 ), has a reduced outer diameter, and is moved into sealing contact with the facing piston face during a damping or decelerating working stroke while being displaced into a position that is spaced apart from said face of the piston during a return stroke. A spring ( 39 ) which biases the facing faces of the non-return disk ( 36 ) and the piston ( 14 ) into the spaced-apart position is arranged between the non-return disk ( 36 ) and the piston ( 14 ).
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