Timber bank with upper connection mechanism

A vehicle timber bank arrangement comprising a horizontal load supporting beam (1) and first and second generally vertical post assemblies (2, 4 and 3, 5) attached at respective ends of said beam, wherein each of the post assemblies includes a respective first and second bottom post (2, 3) anchored to said beam, and at least one top post (4, 5) which is telescopically displaceable relative to a respective said bottom post, wherein a pivotal upper connection means (15) is pivotally mounted at the first post assembly top post (4), wherein a device for coupling with the upper connection means is mounted at the second post assembly top post (5) when said upper connection means is in a position in which it connects said top posts, and wherein the upper connection means is swung by a piston-cylinder device (6, 7) which functions to displace the first post assembly top post telescopically in relation to the first bottom post, characterized in that the first post assembly top post (4) and that part (7) of the piston-cylinder device (6, 7) which actuates said first post assembly top post are coupled together with the aid of a rack-and-pinion arrangement (9-12, 14).