Patent ID: 6267337
Filing Date: 2001-07-31
Classification: A47B,A47C,F16F

Abstract:
A support, suitable for chairs and tables comprisinga guiding tube (1) for coupling with a base of a chair or table;an adjusting arrangement (10) for adjusting the length of the support for coupling with the table or a seat of the chair;a sleeve (20) having a tubular piece (21) that is inserted in the guiding tube (1) and has a main axis A whereby the adjusting arrangement (10) goes through said sleeve, and whereby said sleeve has outside ribs (23) and inside ribs (42) that are arranged around the circumference of the tubular piece (21) of the sleeve (20), and whereina front area (39) of the inside ribs (42) is provided with at least one lip (50,57),a main body (41) of said lip (50,57) is shaped in such a manner that at least that one surface (51) of the lip (50,57), which faces the main axis A and on which the adjusting (equipment) arrangement (10) rests, is convex,said lip runs in the peripheral direction about said tubular piece (21) of the sleeve approximately tangential thereto, andthe lip (50,57) extends vertically along the tubular piece (21) of the sleeve (20),each inside rib (42) has a stiff main body (41) having a substantially rectangular cross-section,said main body (41) has corner sections arranged where the front area (39) of each inside rib (42) meets the respective lateral surface (48,49) of the main body (41) of this said inside rib (42), andthe lip (50,57) protrudes from at least one of the corner sections of the rib main body (41) and extends along the main body (41) of the inside rib (42).