Adjusting device arranged in a seat for a lumbar and/or lordotic region support arranged in a back-rest connectable to the seat and having a connecting bowden cable arrangement

Abstract

Abstract An adjusting device for a lumbar and/or lordotic region support is arranged in a seat and has a connecting bowden cable arrangement (10). The lumbar and/or lordotic region support is arranged in a back-rest connectable to the seat. The adjusting device has an axially movable threaded shaft (2) guided in a housing (1), a threaded ring (4) and an adjusting handle (3). The housing (1) and the threaded shaft (2) have mutually aligned axial central bores (6, 7) through which the sheathed cable (9) of the Bowden cable arrangement (10) is guided. The central bore (6) provided in the threaded spindle (2) has a cavity oriented towards the adjusting handle (3) into which a fitting (14) for one end of the sheathed cable is inserted and held. A radial opening (11) is provided in the side wall of the housing (1) and a transverse bore (12) which opens in the area of the holder of the fitting (14) is provided in the side wall of the threaded spindle (2). The radial opening (11) is aligned with the transverse bore (12) when the housing (1) and the threaded spindle (2) are placed opposite to each other and form a passage with a sufficiently large diameter for the fitting (14) to be threaded therethrough. The opening (11) and the transverse bore (12) are linked to the central bore (6 or 7) by respective slits (15 or 16) which allow the sheathed cable (9) to be threaded through in a common plane.

Inventors

• 👤 Knud Klingler

Bibliographic Details