Patent ID: 6494422
Filing Date: 2002-12-17
Classification: A47C

Abstract:
A length adjustable column comprisingan upright tube with a longitudinal axis and a base plate having an aperture, a piston and cylinder unit received in the upright tube and comprising a first lengthwise end and a second lengthwise end, said first lengthwise end being radially supported by the tube while being axially movable relative thereto, said second lengthwise end being axially fixed relative to said base plate, an axial bearing which is axially fixed to the second lengthwise end, said axial bearing comprising a plurality of locking arms which are received in said aperture of said base plate, said locking arms having a space therebetween, and a securing bolt which is insertable into the space between the locking arms to lock said locking arms in said aperture and secure the axial bearing to the base plate of the upright tube.