| 摘要 |
A trolley for conveying containers for pieces or components in an industrial plant comprises a trolley structure (3) adjustable in length in the longitudinal direction (L) of the trolley and locating supports for the container (C) that include side supports(AL) adjustable in position in a transverse direction (T), orthogonal to the longitudinal direction (L). In this way, the trolley (1) can be adapted to containers for pieces (C) having dimensions and/or configurations different both with reference to the longitudinal direction (L) and with reference to the transverse direction (T). The trolley structure (3) comprises a central structure (30) and a front frame (32) and a rear frame (31), which are slidably mounted towards and away from each other on said central structure (30), in said longitudinal direction (L), and can be blocked selectively in different positions, in which they are at different distances from one another so as to define different lengths of the trolley (1). The lateral locating supports (AL) are slidably mounted on the front and rear frames (32, 31) in the transverse direction (T) and can be blocked in a plurality of different adjustment positions. The wheel units (WL, WR) of the trolley are carried pivotally by the front and rear frames (32, 31) at the two sides of the median plane (m) of the trolley. The steering control unit (2) of the trolley (1) is articulated to the front frame (32) and is connected by a tie-rod or chain or belt transmission to at least one front wheel unit (WL) and to at least one rear wheel unit, which are arranged on one side or on opposite sides of the trolley, in such a way that the front wheel unit and the rear wheel unit are made to oscillate in opposite directions to keep the wheels aligned with the curved path to be followed. In the preferred embodiment the adjustable frames (32, 31) have in plan view a T-shaped configuration, to leave a free space at the two sides of the central structure (30) of the trolley. |
