Finisher for smoothly finishing concrete floor surface while moving machine proper on floor

摘要

The finisher has rotary shafts (28) on a supporting plate (2) of a machine proper (1). The shafts are tiltable in x and y directions and rotatable opposite to each other. Blades (12a-12d) are radially arranged relative to a rotor (10) at the lower part of each of the rotary shafts. They are respectively held in place by several fitting members (13). A rocking supporting unit (14) for the fitting member of each blade is composed of a fixed plate (15) attached to the upper surface of the blade. A holder (16) is attached to the vertical plate portion of the fixed plate. A bearing (18) pivotally supports the central portion of the holder by a supporting pin (17) extended in the tangential direction of the circle of rotation. A mechanism fits a square cylindrical portion (19) of the bearing onto the forward end of the fitting member and removably fixing in place with a bolt (21) or the like. This ensures 20 deg freedom of vertical rocking movement for each of the blades and brings the blades into parallel contact with the concrete.