Concreting machine with rotary vertical column on undercarriage - has distribution mast with several, telescopic mast jibs, and distribution arm

摘要

On the vertical, rotary column (16) is mounted a distribution mast (18) pivoting about a horizontal axis (20) with several, relatively movable elongated mast jibs (24,24',24''). At the mast face end is hinged a distribution arm (26), and a concrete conveying line (32,32') extends along the mast from the rotary column to the distribution arm. The distribution arm is swivelable about a transverse axis (30), orthogonal to the telescopic axis, and about orthogonal longitudinal axis (28). The concrete conveying line is secured at the mast end, facing the distribution arm, and entrained in any telescopic motion, with automatic winding or extension. USE/ADVANTAGE - For concrete supply to tunnel shuttering, with large reaching extend, even in low tunnels.