A stand up sander assembly for sanding a floor with a weed trimmer includes a cup that is mountable to a drive output of a weed trimmer such that the cup is rotated by the weed trimmer when the weed trimmer is turned on. A coupler is removably coupled to the cup. The coupler lies on a plane that is oriented perpendicular to a rotational axis of the drive output. A sanding disk is removably attached to the coupler. In this way the sanding disk can be positioned against a surface to be sanded when the weed trimmer is manipulated. The sanding disk is comprised of an abrasive material thereby facilitating the sanding disk to sand the surface.

The present invention relates to a polishing system (100) for providing a polishing finish to a concrete surface, said system comprises a pad lock (2) which, one a second surface (6) thereof, comprises a number of protrusions (32) which are able to enter into engagement with a voids (16) arranged on a first surface (12) of a pad (10) placed between a fixing ring and said pad lock. The use of such a system provides a higher degree of integrity during use of said polishing system.

A transmission arrangement (113) comprising a first axle (24) that is rotatable about a first axis (33) and is connected to a first pulley (25) that is arranged to drive an endless power transferring means (26) that further is adapted to drive a second pulley (27) that is rotatable about a second axis (34), where the transmission arrangement (113) comprises a first idle pulley (101) and a second idle pulley (102) which both are adapted to guide the endless power transferring means (26), where the first idle pulley (101) is rotatable around a first idle pulley axis (103) and the second idle pulley (102) is rotatable around a second idle pulley axis (104), where the distance between the idle pulley axes (103, 104) is fixed and where the idle pulley axes (103, 104) are pivotable around a common pivot axis (105), wherein the first pulley (25) is positioned between the idle pulleys (101, 102) and the second pulley (27) such that a distance between any one of the idle pulley axes (103, 104) and the second axis (34) exceeds a distance between any one of the idle pulley axes (103,104) and the first axis (33).

The invention provides an article of manufacture useful for simultaneously maintaining, cleaning and polishing hard surfaces comprising independently a driver element (non-woven web) having a central opening and one or more equidistant or non-equidistant openings therein and polishing inserts elements disposed in said equidistant or non-equidistant openings, wherein said article upon cleaning and polishing a surface provides a consistent and improved surface smoothness and reflected image quality. The invention also provides a kit for cleaning and polishing hard surfaces comprising: (a) a driver element having a central opening and one or more equidistant or non-equidistant openings; (b) polishing inserts elements for said driver element having equidistant or non-equidistant openings; and wherein said kit provides said hard surface with a consistent and improved surface smoothness and reflected image quality.

The present invention relates to a device (14) for sanding floor areas, the device comprising a frame, a steering, a motor which is provided to said frame, a subframe (13) rotatably coupled with said motor, said subframe being centrally provided with an adapter (7) along the lower side, a sanding frame (1), said sanding frame being centrally provided with a receiver (2) along the upper side, said receiver receiving said adapter, and at least one holder (5) for sanding elements, said holder being provided along the lower side of said sanding frame and being suitable for the attachment of sanding elements (15). In particular, the subframe is freely supported by the sanding frame, via said adapter and receiver, said adapter and receiver being rotationally coupled. In other aspects, the invention relates to a sanding frame, a sanding element and a method for sanding floor areas, as well as a floor area obtained by application of said method.

The present invention relates to a safety arrangement for a floor surfacing machine (1) comprising at least one drive wheel (3, 4), a motor arrangement (5, 6) for propelling said drive wheel (3, 4), a surfacing apparatus (13) and a control unit (10, 11a) for controlling the operation of said motor arrangement (5, 6) and said surfacing apparatus (13). The arrangement comprises at least one detecting unit (55; 56, 57) connected to said control unit (10,11a) and adapted for determining a torque required for operating each drive wheel (3, 4) wherein said control unit (10,11a) is configured for preventing operation of said surfacing apparatus (13) if said required torque is lower than a predetermined limit value. The invention also relates to a method for obtaining safety in a floor surfacing machine (1).

An apparatus for cutting grooves in a ground surface includes a wheeled vehicle with a tool carrier connected to the wheeled vehicle. The tool carrier is rotatable about an axis parallel to the direction of travel of the vehicle and perpendicular to the direction of travel of the vehicle. A grinding tool for cutting grooves in a ground surface is rotatably mounted to the tool carrier. The grinding tool may be movable laterally relative to the vehicle. A rotatable cam is configured so that rotation of the cam causes pivotal movement of the tool carrier relative to the forward frame. Rotation of the cam moves the grinding tool into and out of engagement with the ground surface.

A floor grinding machine includes a supporting frame, a grinding unit attached to the supporting frame, and a drive unit connected to the grinding unit. The grinding unit includes an upper housing, a lower housing rotatably arranged in relation to the upper housing, and a planetary drive system connected to the drive unit. The upper housing includes a first side wall. The lower housing includes a bottom plate and a second side wall. One or more grinding disks adapted for holding a tool are rotatably attached to the bottom plate. The planetary drive system is arranged to rotate the lower housing and the one or more grinding disks. The first side wall at least partly overlaps the second side wall. A gap is formed in a radial direction between the first side wall and the second side wall, and a sealing element is arranged in the gap.

A planetary disk style rotary sander is provided that includes a plurality of planetary-style sanding head units attached to the sander. The sanding head units described herein preferably have multiple diameters. As a result, some of the head units may be located closer to the center of the sander than others.

The present invention relates to a floor surfacing machine (1) comprising a frame (2) that is carried by a first wheel (3) and a second wheel (4). The floor surfacing machine (1) further comprises a first motor (6), a handle arrangement (7), at least one planetary head (15) that is rotatably mounted to the frame (2) and at least one satellite surfacing head (19, 20, 21) that is rotatably mounted to the planetary head (15), where the first motor (6) is arranged to propel the planetary head (15). The floor surfacing machine (1) comprises a first control unit (10), and a remote control panel (11) which in turn comprises a second control unit (12) that is arranged to communicate with the first control unit (10). The floor surfacing machine (1) also comprises a second motor (22) that is arranged to propel the satellite surfacing heads (19, 20, 21) such that the planetary head (15) and the satellite surfacing heads (19, 20, 21) are independently operable.