PLASTERING-TROWELING TOOL AND METHOD OF ITS PREPARATION FOR OPERATION Russian patent published in 2020 - IPC E04F21/16 

FIELD: construction.

SUBSTANCE: invention relates to construction, in particular, to tools used in finishing works for troweling of plaster coating finishing coat. Method of preparation for operation of plastering-troweling tool consists in installation of foam plastic rack from below in mandrel by means of fasteners with subsequent fixation in mandrel, wherein the foam pillar first by one end smaller in length, is fixed in the horizontal plane on the movable inner end of the mandrel by means of fasteners, and then fixed by second end, by movable end of mandrel, on second fixed end of mandrel by means of fasteners, as well as technical result is achieved by the fact that the plastering-troweling tool comprises a working member in the form of a horizontal mandrel with a handle attached from above and a foam plastic post with a mechanism for fixing the latter from below on the mandrel, wherein mandrel is made in form of fixed part of U-shaped frame in horizontal plane, including on horizontal component of U-shaped frame toothed surface facing inside mandrel, between vertical, L-shaped in cross section, components of U-shaped frame in horizontal plane crosspieces are fixed, on which handle is supported by free ends, on handle in longitudinal direction there is a slot, part of slot along vertical component of handle is made through, dividing vertical component of handle in vertical plane into two parts, and part of the groove on the upper horizontal component of the handle in the upper part is made blind, with the possibility of being installed in the said groove of the L-shaped handle and turning the latter in the vertical plane along the longitudinal axis of the handle relative to the horizontal hinge made at the point of abutment of the vertical component to the horizontal component of the handle, one end of L-shaped handle, which interacts with non-spill surface of slot part on horizontal component of handle is made free, along length is not less than horizontal component of handle, the second end of the L-shaped handle is hingedly fixed on one end of the rod with the possibility of the latter movement in the horizontal plane along the guide made in the place of abutment of the second vertical component of the handle to the cross bar, traction second end is secured on movable part of mandrel, including toothed surface facing inside mandrel to interact with second end of foam plastic and end faces of vertical components of U-shaped frame mandrel.

EFFECT: expansion of plastering-troweling tool operational capabilities due to design simplification, operation technology and optimization of consumable material usage.

2 cl, 5 dwg