Length-variable lifting spindle for lower link of attachment device of agricultural apparatus i.e. tractor, has grip sleeve comprising locking portion that surrounds connection end in locking position under formation of positive connection

摘要

The spindle (10) has connection ends (12, 14) e.g. ball joint and clevis, fixed to a force arm of a mechanical drive and a lower link, respectively. A grip sleeve (20) is displaceably arranged on a spindle bar (30) towards a longitudinal axis (x-x), which is fixedly connected with the spindle bar. The grip sleeve is optionally displaceable into a locking position and fixedly connected with one of the connection ends in the position. The grip sleeve comprises a locking portion (24), which circumferentially surrounds the connection end in the position under formation of a positive connection.