Abstract: A bayonet coupling for mounting of a tool on a drive shaft of a machining unit. The drive shaft is connected to the tool via a bayonet coupling, which includes two coupling parts. The one coupling part is provided with a receiving groove for an engaging tab placed on the other coupling part. The receiving groove has a first section with an extension parallel to the axis of rotation and the second section of the receiving groove has an extension transverse, perpendicular, to the axis of rotation, so that the tool is driven via the engagement of the bayonet coupling.

Abstract: A bayonet coupling for mounting of a tool on a drive shaft of a machining unit is provided. The drive shaft is connected to the tool via a bayonet coupling, which includes two coupling parts. The one coupling part is provided with a receiving groove for an engaging tab placed on the other coupling part. The receiving groove has a first section with an extension parallel to the axis of rotation and the second section of the receiving groove has an extension transverse, perpendicular, to the axis of rotation, so that the tool is driven via the engagement of the bayonet coupling.

Abstract: A tool with tool elements, rotating grinding and/or sanding tool is provided. The tool consists of a tool portion and a mounting portion, which secures the tool elements in the tool. The tool is distinguished in that the tool portion comprises first mount, and the mounting portion includes second corresponding mount for engaging with the first mount. The first and second mount include one or more resilient tabs, each of which is provided with at least one barb, and furthermore the mount comprises one or more recesses. When the tool portion and the mounting portion are assembled, the barbs on the resilient tabs will lock in the recesses of the mounting portion which are designed for this, locking the tool portion and the mounting portion to each other.

Abstract: A grinding tool has a grinding head (1) that includes one or more surfaces with a number of recesses (2). Fastenings are provided in one or more recesses (2) for fixing tool members (5). The fastenings are adapter strips (6) disposed in one or more of the recesses (2). The adapter strips (6) are provided with at least one internal and preferably longitudinal recess (7). The recess (7) in the adapter strip (6) has sidewalls (8). Retainer parts (9) of the tool members have complementing outer sidewalls and are mounted in these adapter strips (6). The grinding tool with a universal grinding head (1) uses all types of tool members (5) in one and the same grinding head (1). It is thus possible to change between tool members (5) with different shapes on the retainer part (9) by switching between different adapter strips (6).

Abstract: A tool with a rotating processing unit with tool elements, preferably an abrading or polishing tool, and with a motor including a drive shaft for driving the processing unit is provided. The drive shaft is drivingly connected with a drive plate disposed at right angles to the drive shaft and provided with first connecting device releasably interacting with corresponding second connecting device which are connected with a base plate for the processing unit. The processing unit will thus be driven by the engagement of the first and second connecting device. The tool elements are fixed in the base plate. By this design it is possible for a user to replace the processing unit rapidly and in a simple way without needing to replace the individual tool elements.

Abstract: Grinding heads rotate about central axes, have surfaces between plane and cylindrical surfaces provided with retainer grooves for edge profile parts of a number of abrasive paper members with associated support brushes. Abrasive paper members are mounted at angles of 20-40°, preferably about 30°, directed obliquely forward in the direction of rotation of the plane surface and a tangential plane of the cylindrical surface. Retainer grooves for edge profile parts of the abrasive paper members extend obliquely rearward in the direction of rotation of the plane surface at an angle of 3-10° relative to a radial extension. Alternatively, the retainer grooves extend obliquely rearward in the direction of rotation of the cylindrical surface at an angle of 3-10° relative to an axially parallel generatrix of the cylindrical surface. In a simple way a more optimal abrading of particularly outer side edges and edge areas of plate-shaped items is readily achieved.

Abstract: The invention concerns a rotating sanding/grinding/polishing tool (1) provided with a number of undercut mounting grooves (5) for mounting one or more displaceable grinding elements (4), at which is provided an annular groove (8) in a plane largely perpendicularly to the rotary axis of the tool, and a ring-shaped securing means (9) provided in the groove and a resilient means (11) along the periphery of the rotating tool (1), at which the securing means (9) has one side bearing against the resilient means (11) and another side bearing against part of the grinding elements (4).

Abstract: A grinding tool has a grinding head (1) that includes one or more surfaces with a number of recesses (2). Fastenings are provided in one or more recesses (2) for fixing tool members (5). The fastenings are adapter strips (6) disposed in one or more of the recesses (2). The adapter strips (6) are provided with at least one internal and preferably longitudinal recess (7). The recess (7) in the adapter strip (6) has sidewalls (8). Retainer parts (9) of the tool members have complementing outer sidewalls and are mounted in these adapter strips (6). The grinding tool with a universal grinding head (1) uses all types of tool members (5) in one and the same grinding head (1). It is thus possible to change between tool members (5) with different shapes on the retainer part (9) by switching between different adapter strips (6).

Abstract: A grinding apparatus for machining a workpiece (6), including an apparatus frame (2) supporting a grinding station (3) with a number of grinding heads (4) with associated grinding elements (5) arranged such that the grinding elements (5) are in contact with one surface (7) of the workpiece at the passage of the workpiece through the grinding apparatus (1), and an endless conveying means (8) for the grinding heads (4), and a roller table (9) for supporting the workpiece (6), where the grinding apparatus (1) includes a further grinding station (10) with grinding heads (4) arranged such that the grinding elements (5) are in contact with the opposite surface (11) of the workpiece at the passage of the workpiece across the roller table (9), where the roller table includes a first (12) and a second set of rollers (13), and where there is an interspace (14) between two set of rollers (12, 13), allowing passage of the workpiece between the two set of rollers (12, 13), wherein spacing (15) between individual rollers (

Abstract: The invention concerns a rotating sanding/grinding/polishing tool (1) provided with a number of undercut mounting grooves (5) for mounting one or more displaceable grinding elements (4), at which is provided an annular groove (8) in a plane largely perpendicularly to the rotary axis of the tool, and a ring-shaped securing means (9) provided in the groove and a resilient means (11) along the periphery of the rotating tool (1), at which the securing means (9) has one side bearing against the resilient means (11) and another side bearing against part of the grinding elements (4).

Abstract: The present invention relates to a profile strip (1), preferably for a cylinder drum (5) comprising a bottom strip (3) which is designed for replaceable retention of a bottom profile (2) comprising a number of brushes (6) and a number of grinding elements (8) and where the grinding element (8) along the length of a side edge (10) is provided with an edge zone (13) without grinding effect.

Abstract: The present invention relates to a profile strip (1), preferably for a cylinder drum (5) comprising a bottom strip (3) which is designed for replaceable retention of a bottom profile (2) comprising a number of brushes (6) and a number of grinding elements (8) and where the grinding element (8) along the length of a side edge (10) is provided with an edge zone (13) without grinding effect.

Abstract: The present invention relates to a grinding element for mounting in a recess (41) in a surface of a cylindric drum (42) and including a retainer means (2) designed with outer sidewalls that are complementary to sidewalls of the recess (41), where a squeezing force (F) on the sidewalls of the retainer means (2) arises in a situation of use by rotation of the cylindric drum (42), where the retainer means (2) includes at least one groove (5) for securing a grinding means (1), the groove (5) extending from an outwards facing side of the retainer means (2) and inwards and forming at least one elastic, pliable flap which is disposed between the said groove (5) and at least one of the outer sidewalls wherein the grinding means (1) for accommodation in the groove (5) in the retainer means (2) comprises a mounting means (3) having a socket section (3b) with a shape complementary to the groove (5) in the retainer means (2).

Abstract: The present invention concerns a support means (1), preferably fur a sanding apparatus (3), where the support means includes a handle (2) which is connected with the sanding apparatus (3) at one end and which is provided with a carrying handle at the opposite end, where the handle (2) is designed as a double pipe and includes a number of parts, each adapted to couple to another part via a joining means (8).

Abstract: The present invention concerns an apparatus (1), preferably for grinding a surface, including at least one grinding unit, a screen (2, 3) and a guide member (5), where the grinding unit is a rotatable and preferably horizontally arranged grinding cylinder, which at a cylinder surface is provided with a number of preferably exchangeable grinding elements, where the screen (2, 3) entirely or partly encloses the grinding unit, and where the guide member (5) is connected with the screen (2), and where the screen includes an outer screen (2) and an inner screen (3) which are mutually movably connected, and where the inner screen (3) includes a first suction screen (11) and a second screen (12) which are mutually movably connected.

Abstract: The present invention concerns a grinding apparatus (1) including a number of grinding units (3), a number of drive units (11) and a number of screen units (2), where a number of the grinding units (3) are enclosed by at least one of the screen units (2), and where at least one the screen units (2) is arranged with a pipe connection (4) adapted for connecting one or more suction units (21), where the screen unit (2) with the pipe connection (4) is designed along a lower edge (6) with a number of spacer members (7) that are arranged adjustable and replaceable, and a number of sealing members (8) that fit tightly to an underlying surface, that the spacer members (7) establish an adjustment of spacing of the grinding units (3) relatively to an underlying surface, and that the sealing members (8) interact with the suction units (21) for forming a vacuum that holds the grinding apparatus (1) against the said surface during operation.

Abstract: The present invention concerns a grinding wheel (1) including a circular wheel that rotates about a central axis and with a surface (2) to which edge parts of a number of sand paper items (3) are fastened, and that the surface (2) has increasing height inwards from a periphery (6) of the surface (2), and that the sand paper items (3) have approximately the same height and are mounted mainly perpendicularly to the surface (2) of the wheel and have approximately radial extension over the greater part of the radius of the surface (2).

Abstract: A cylindrical drum has at its circumferential edge a number of recesses, each adapted for accommodating a replaceable grinding element including a retainer in which is mounted a sandpaper, support brushes and/or retainer brushes. The recesses in the cylindrical drum are made with side walls. The retainer is made with corresponding outer side walls. During use, by wedge action between the side walls of the recesses and the outer side walls of the retainer, a squeezing force on the side walls of the retainer directed in the circumferential direction arises. The retainer is designed with grooves for fastening at least one sandpaper, and the grooves extend from an upper side of the retainer and into the retainer for forming at least one elastic and pliable flap which is disposed between the grooves and at least one outer side wall.

Abstract: The invention concerns a cylindric drum for a sanding/polishing tool which in its drum surface is provided with a number of undercut axial grooves for mounting one or more axially displaceable sanding elements, where an annular groove has been provided either in the drum surface or a shaft perpendicularly to the rotational axis of the cylindric drum and along the periphery of either the surface of the drum or the surface of the shaft, that a stop means has been arranged for accommodation in the annular groove in an axially fixed position, where at least a part of the stop means abuts on end faces of the moldings of the sanding elements mounted in the axial undercut grooves.