| 摘要 |
A device for smoothing freshly cast concrete surfaces by hand, which contains at least two rotatable trowels (15), possesses a box-like frame with a sump base (3) with lid (4), between which bearing means and a driving mechanism are mounted. A driving shaft (18), which runs through a flange (19) in the sump lid (4), drives the driving mechanism which is located in part within the frame. Extremities of the driven axles (5, 6) which protrude through the sump base (3) are provided with trowels (15) for smoothing the freshly cast concrete surface. The working surface of the trowels (15) run partly flush with the circumferential edge (24) of the frame, so that the concrete surface can also be properly finished and smoothed in the vicinity of obstacles in the concrete. The frame is preferably triangular, and possesses three axles with trowels (15). |
