Arrangement for the adjustment of bowden pull wires

Abstract

An adjustment construction for adjusting the active sheath length on a Bowden pull wire for mounting in an opening of a support wall. The arrangement includes a Bowden wire moveable in the sheath and a sheath end piece having an end into which the sheath is engageable, the sheath end piece having a surface defining a plurality of stops. The stops are positioned to provide gaps between adjacent stops and the sheath end piece is provided with a toothed rack-like displacement ribs on the outer surface of the plurality of stops. The periphery of the sheath end piece defines a longitudinal groove extending through the stops and interrupting the stops. A socket is provided for support of the Bowden wire. The socket is mounted in the wall opening and has a passage before the sheath end piece and the wire and includes an end engaged over the sheath end piece with a frictionally engageable end face. A support sleeve is provided having an interior bore engageable around the sheath end piece. The support sleeve includes a feather key elements which interconnects the support sleeve with the sheath end piece and limits relative rotation between the support sleeve and the sheath end piece but permits relative axial movement. A locking sleeve is positioned on the sheath end piece between the support sleeve and the socket. The locking sleeve includes a catch element for allowing axial movement of the locking sleeve along the groove and for being positioned between adjacent stops for preventing axial movement of the locking sleeve. A torsion spring element is provided connected to the support sleeve and connected to the locking sleeve biasing against rotational movement between the support sleeve and the locking sleeve.