Height adjustment in front of the direction and a chair with such a height adjustment in front of the direction of

摘要

The present invention relates to a height adjustment in front of the direction for a chair, and a chair with such a height adjustment in front of the direction of. The height adjustment in front of the direction for a chair, in particular a rotatable chair or an office - a chair, which comprises a pneumatic spring, which can be coupled with a seat of the chair is provided for height adjustment of the seat; a first guide tube device, in which the pneumatic spring is guided displaceably in the longitudinal direction, wherein the first guide tube apparatus is provided with an intermediate tubular member as a carrier is connected, and wherein the first guide tube device is made of plastic, and with guide rings is provided for the guidance of the pneumatic spring.