(19)
(11) EP 0 963 717 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.09.2002 Bulletin 2002/38

(43) Date of publication A2:
15.12.1999 Bulletin 1999/50

(21) Application number: 99610033.5

(22) Date of filing: 26.05.1999
(51) International Patent Classification (IPC)7: A47B 9/12
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 29.05.1998 DK 72098

(71) Applicant: Raabo, Ulf
3230 Graested (DK)

(72) Inventor:
  • Raabo, Ulf
    3230 Graested (DK)

(74) Representative: Larsen, Hans Ole et al
Larsen & Birkeholm A/S, Banegaardspladsen 1, P.O. Box 362
1570 Copenhagen V
1570 Copenhagen V (DK)

   


(54) Height adjustable underframe


(57) This invention concerns a height-adjustable underframe for a table or a similar work platform, said underframe (1) comprising a cross-beam (10) with at least two telescopically adjustable legs (2), a mechanically-driven movement arrangement (20) to which cords are connected which run over cord pulleys in the underframe and the legs (2), and are arranged to work between a lower leg part (3) and at least one upper leg part (5).
According to the invention, the mechanically-driven movement arrangement (20) comprises a toothed wheel (25) in engagement with a toothed element (26), where a compression spring element (30) co-operates with the toothed element (26) for the displacement of this in the longitudinal direction of the cross-beam (10) for the adjustment of the height of the legs (2), in that a first and a second cord (40 and 41 respectively) are secured to an end (29) of the toothed element (26).






Search report