| 摘要 |
A chair column comprises a stand tube (3). A support bush is inserted into the upper end portion (3a) of the stand tube. A gas spring cylinder (2) extends axially through the receiver bush (5). The piston rod (21) is directed downward and is connected with a bottom (20) of the stand tube. The gas spring cylinder is guided through two axially spaced bearing bushes (6). The bearing bushes are radially supported by the receiver bush through a radially prestressed transmission ring (7) or a plurality of circumferentially distributed buffers. The radial prestress is transmitted to the contact face between the bearing bushes and the gas spring cylinder. <IMAGE> |
