invention it is possible to improve the manipulability of the suction brush 10 while maintaining the suction force whether a surface to be cleaned is a hard floor or a soft carpet fig5 a is a graph comparatively showing the suction forces which may be directly related to the dust removing capabilities of a suction brush according to a non limiting embodiment of the present invention and a conventional suction brush fig5 b is a graph comparatively showing the maneuvering forces of the suction brush according to the embodiment of the present invention and the conventional suction brush referring to fig5 a there is no change in suction efficiency before and after mounting the rolling pins however referring to fig5 b it can be confirmed that the force applied by a user to move the suction brush i e the maneuvering force is substantially reduced by way of example the operation of the inventive suction brush configured as described above will now be described in terms of the case in which the surface to be cleaned is the surface of a carpet at first if the vacuum cleaner is powered on to drive the vacuum motor of the cleaner vacuum force is transmitted to the suction brush 10 then the suction brush 10 comes into close contact with a surface of the carpet the space between the bottom of the body of suction brush 10 and the carpet may be maintained at the height h see fig4 b due to the rolling pins 20 in particular due to the height h the force between the carpet and the.