Mineral material e.g. soil, storing and distributing movable unit for installing e.g. cable, has frustum shaped hopper including planar walls provided towards discharge opening to distribute materials, and tilting around horizontal axis

摘要

The unit (10) has a frustum shaped hopper (12) including longitudinal and transversal planar walls (20, 22, 26) provided towards a discharge opening (31) for distributing mineral materials e.g. soil. The hopper tilts around a horizontal axis. A hydraulic or pneumatic cylinder (36) controls the tilting of the hopper around the axis, where the longitudinal walls have identical inclination and the transversal walls have different inclination.