FIELD: transportation.
SUBSTANCE: invention relates to the roller device, which is designed for an object incorporation and movement across the floor. Roller device comprises cylinder with an opening at one end and piston, which is installed with possibility of reciprocating movement in the cylinder. Piston can be moved in the cylinder between the upper and lower positions. Piston includes roller, which is installed on the piston first end facing the cylinder opening, with possibility of rolling over the surface when the object needs to be moved. Roller device also includes actuating system for the piston movement in the cylinder between the upper position and the lower position.
EFFECT: facilitating the object movement control over the surface and, if necessary, stationary fixing in the certain place.
18 cl, 9 dwg
