Abstract: An accessory for use with an oscillating power tool includes an attachment plate and a raised annular rim extending from the attachment plate. The raised annular rim has a central recess and a keyed sidewall with a star shape configured to be engaged by a first mating geometry of an oscillating power tool. The raised annular rim may further include a receiving portion formed thereon configured to be engaged by a second mating geometry of an oscillating power tool.

Abstract: A rotary sanding system for retro fitting a Rotozip sanding disk to an air tool includes a first disk that may be removably coupled to an air tool thereby facilitating the air tool to rotate the first disk. The first disk has a plurality of openings extending therethrough and air may pass through the openings. A mating unit is coupled to the first disk. The mating unit engages the air tool thereby facilitating the first disk to be removably coupled to the air tool. A sanding disk is removably coupled to the first disk. The sanding disk may abrade a surface when the air tool rotates the first disk.

Abstract: The invention relates to a sanding assembly including a sanding device (100) comprising a plate (110) for supporting a sanding disk (10) and motor-driven means (140) suitable for moving the supporting plate (110), characterized in that the supporting plate (110) comprises two notches (114, 116) distributed angularly along the periphery thereof, a first notch (114) for engaging with a positioning module (200) and a second notch (116) for engaging with a pulling jaw (400), and a module (500) for verifying the presence of the sanding disk.

Abstract: An abrasive assembly including a back-up pad having a central axis, an engagement component, and an alignment element; and an abrasive disc having a central axis, the abrasive disc engaged with the back-up pad, the abrasive disc including an alignment element; wherein the alignment element of the back-up pad aligns with the alignment element of the abrasive disc, wherein the engagement component of the back-up pad engages with the abrasive disc, and wherein the back-up pad and the abrasive disc have a concentricity tolerance, C, as measured between the central axis of the back-up pad and the central axis of the abrasive disc, of no greater than about 0.1.

Abstract: A working component for mating with multiple shaft ends includes a body portion and a clamping portion which is connected to the body portion and suitable for mounting the working component to the shaft ends. The body portion has a work piece processing area for acting on the work piece to be processed and the clamping portion has a mounting hole with a longitudinal axis Y. The clamping portion includes a support portion and a mating portion which is provided with a plurality of projections which extend in a radial direction vertical to the longitudinal axis Y and which are distributed alternately.

Abstract: The invention relates to a method of making a grinding disk, comprising the steps of: providing a cap; providing an abrasive part; placing the cap on the abrasive part to form an assembly; holding the assembly and injecting a molding material into a space between the cap and the abrasive part and into the abrasive part to bond the cap and the abrasive part. A grinding disk made by the method is also disclosed.

Abstract: The present invention is directed to an insertion tool (12) for a machine tool that has a hub (16) with at least one opening (42, 80) for insertion of a fastening means (40, 84), via which the hub (16) is clampable on a driving flange (22) of the machine tool connected to a drive shaft, the opening (42, 80) including a retaining region (54) and a releasing region (56), the releasing region (56) including a stop (66, 88) for limiting a release motion of the fastening means (40, 84). It is provided that the opening (42, 80) adjacent to the stop (66, 88) has a convex section (76, 90).

Abstract: A quick release attachment for a power tool having a rotatable spindle includes a pad assembly and a quick release connector adapted to join the pad assembly to the spindle. The pad assembly includes a mounting plate and a pad affixed to at least one side of the mounting plate, wherein the pad includes a primary material that is either metal, stone, ceramic, fiber, sand, nylon or polypropylene, and the mounting plate includes a central aperture. The mounting plate aperture further comprises a circular ring disposed therein and has a t-shaped key extending diametrically across the aperture. The t-shaped key comprises a magnetically attractive material. The quick release connector has a main body adapted to fixedly engage the spindle. The connector further has a head end extending from the main body and having a circular cross-section sized to engage the circular ring. The head end further has a slot sized to engage the t-shaped key.

Abstract: A quick release attachment for a power buffer having a rotatable spindle includes a buffing pad assembly and a quick release connector adapted to join the buffing pad assembly to the spindle. The buffing pad assembly includes a mounting plate and a buffing pad affixed to either side of the mounting plate. The mounting plate and the buffing pads each have respective aligned central apertures. The mounting plate aperture further comprises a circular ring disposed therein and has a pin extending diametrically across the aperture. The pin comprises a magnetically attractive material. The quick release connector has a main body adapted to fixedly engage the spindle. The connector further has a head end extending from the main body and having a circular cross-section sized to engage the circular ring. The head end further has a slot sized to engage the pin.

Abstract: A mounting system for rotating tools such as grinding wheels in a hand-held power tool, includes a hub mountable to the tool drive shaft and a rotating tool element removably affixable to the hub. The tool has at least one flange that engages a corresponding circumferential groove in a hub wall. Both the hub and tool have complimentary lock elements to frictionally retain the tool in a releasably fixed orientation upon the hub. One of the lock elements is in the form of a depression, while a mating element located on the other ports is a complimentary projection.

Abstract: A semiconductor manufacturing apparatus includes a wafer support having a grinding base on which a wafer is disposed, and a grinding assembly disposed above the grinding base. The grinding assembly includes a grinding plate having grinding projections at the bottom thereof and at least two fixing pins protruding at a the top thereof, and a grinding mount to which the grinding plate to which the grinding plate can be initially coupled and then secured to quickly. The grinding mount has first fixing grooves in a bottom surface thereof and in which the respective fixing pins are inserted and held. A vacuum system and/or mechanical fasteners are used to then secure the grinding plate to the grinding mount.

Abstract: A power tool having a receptacle for securing a tool to a drive shaft thereof is disclosed. The receptacle comprises a receiving opening, preferably being arranged on the tool. The receiving opening engages a securing section preferably being provided in a raised fashion on the drive shaft of the power tool, thereby effecting a positive fit. The securing section comprises a plurality of rounded tips arranged at even radial distances from said longitudinal axis, at angular intervals between each other, each rounded tip having a pair of lateral flanks extending from a common apex toward an intermediate section connecting lateral flanks of a pair of adjacent rounded tips. Preferably the receiving opening comprises a number of rounded tips which is twice the number of rounded tips provided on the raised section.

Abstract: A clamping device for a power tool that axially secures a disc shaped tool to its spindle. The clamping device securely attaches a grinding wheel or circular saw to a power tool by a contact surface on the clamping device and a screw-on flange that directly contacts the tool. The clamping device counteracts inertial forces that loosen the tool upon sudden deceleration.

Abstract: The invention is based on a tool receiver for a grinder, in particular for a handheld angle grinder (10), having a carrier device (12, 14, 16, 182, 184, 300), via which an application tool (18, 32, 186, 188) can be actively connected to a drive shaft (54). It is proposed that the application tool (18, 32, 186, 188) be actively connectable to the carrier device (14, 16, 182, 184) via at least one detent element (24, 26, 190, 192, 194, 196, 198, 200, 302) movable against a spring force that snaps into place in an operating position of the application tool (18, 32, 186, 188) and immobilizes the application tool (18, 32, 186, 188) with positive engagement.

Abstract: A reusable mounting device which includes a support member having a support pad (32) secured to a hollow cylindrical body (42) by way of a compression ring (46). The hollow body defines a recess which receives a nut (18) that is adapted to protrude through a central aperture in an abrasive disc (1) and includes an irregular surface (22) providing an interference fit between the nut and the aperture in the disc. The nut extends into the hollow cylindrical member and includes an internal threaded bore adapted for threadable engagement with a drive member (30) which forms a part of or is attached to a portable power tool.

Abstract: An insert tool with grinding blade and a supporting disk, and with a hub, which has at least one opening that permits the hub to be clamped to a driver flange of a grinder, which flange is connected to a drive shaft, wherein the hub is constituted by a component that is separate from the supporting disk, the hub can be operatively connected to a driver device of the grinder by means of at least one detent element, which is supported so that it can move in opposition to a spring element and which engages in detent fashion in an operating position of the hub and fixes the hub in a positively engaging manner.

Abstract: A power tool having a receptacle for securing a tool to a drive shaft thereof is diclosed. The receptacle comprises a receiving opening, preferably being arranged on the tool. The receiving opening engages a securing section preferably being provided in a raised fashion on the drive shaft of the power tool, thereby effecting a positive fit therebetween. The receiving opening has a cross section comprising a plurality of bulges displaced outwardly from a center axis of the drive shaft.

Abstract: The polishing device has a shank and at least one polishing disk arranged on one end of the shank, that can be friction-fixed by two stops one opposite another. The polishing device has a protective element preventing contact between the surface to be polished and the shank end or stop.

Abstract: An abrasive disk mounting system and a grinding system are provided. The mounting system permits both primary abrasive disks (typically having a diameter greater than about 5 inches) and secondary abrasive disks (typically having a diameter from about 1.5 inches to about 3 inches) to be mounted to the same backup pad and hub. Additionally, the mounting system permits abrasive disks to be secured with either male or female threaded mounting members, or with head caps or clips, to be mounted to the same backup pad and hub. The grinding system permits an abrasive disk or a backup pad extension to be quickly and easily secured to a hub.

Abstract: A clamping assembly adjustable from a first position with a first stack height to a second position with a second stack height less than the first stack height, whereby said clamping force is substantially released, said clamping assembly comprising: a flange nut; a clamp flange connected to the flange nut; a thrust plate having a plurality of axial penetrations and rotatably mounted between the flange nut and clamp flange; a first roller cage having a plurality of penetrations; a first plurality of rolling elements rotatably mounted in the penetrations of the first roller cage; a second roller cage having a plurality of penetrations; a second plurality of rolling elements rotatably mounted in the penetrations of the second roller cage; a ring collar having rotatably mounted between the clamp flange and the flange nut and surrounding and rotationally engageable to the thrust plate, whereby rotation of the ring collar rotates the thrust plate relative to the first and second roller cages from the first positio

Abstract: The invention is based on a tool receiver for a grinder, in particular for a handheld angle grinder (10), having a carrier device (12, 14, 16, 182, 184, 300), via which an application tool (18, 32, 186, 188) can be actively connected to a drive shaft (54).

Abstract: The invention is based on a grinding machine tool receptacle, in particular for a hand-guided angle grinding machine (10), having a slaving device (12, 14, 16, 300), by way of which an insert tool (18, 32) can be operatively connected to a drive shaft (54).

Abstract: A holder for an abrasive disc allows for a quick manual change of the abrasive disc. The holder including an uncoupling mechanism that in turn includes a handle comprising a pin and an adjacent hub comprising a partial annular channel. The handle and hub have a limited rotational engagement wherein the pin travels in the channel. When an operator desires to replace an abrasive disc, the operator grasps the handle with one hand and rotates the disc, face plate, and hub, together as a unit, with the other hand. This counter-rotation breaks the tight attachment of the disc on the shaft of the finishing tool, so that disc can be easily unthreaded from the shaft.

Abstract: Supporting plate for rotating tools for fine machining of surfaces, such as grinding or polishing with a front working surface or an adhering surface for detachably mounting a grinding, polishing, or similar working medium disk, having a rear driving connection and configured to provide for simple manipulation, advantageously priced adaptability and a rapid exchangeability. The supporting plate has an elastically deformable, exchangeability plate and an accommodating carrier. The exchangeable plate provides the working or adhering surface and has an interior space engaged from the rear by a coupling structure of the accommodating carrier with a bayonet or similar quick-change connection at an edge.

Abstract: A quick change lap retaining device uses radially displaceable blades to engage a groove in the underside of a lap and thereby hold the lap in position. The device fails in the engaged position to prevent inadvertent movement of the lap. Removal of the lap occasioned by disengagement of the blades is preferentially by pneumatic drive but can also be manual.

Abstract: A grinding tool to be driven by a rotating machine drive comprises a carrier body in the form of a disk. The disk can be attached to the machine drive by means of a connecting element located at approximately the area of the center of rotation. The carrier body has at least one working side equipped with a grinding element. The grinding element takes the form of a disk leaf, i.e. a thin or leaf-like disk disposed radially in relation to the axis of rotation. The periphery of the disk protrudes by a predetermined amount beyond the outer edge of the working side of the carrier body. The grinding element disk comprises at least two disk layers attached to one another. A first layer of the disk is an elastic cushioning layer, and a second layer of the disk is a highly flexible grinding linen.

Abstract: A clamping device for axially clamping a disk-shaped tool member on a shaft of a working tool has a pressure member for force-lockingly clamping the tool member between a radial surface of the shaft and the pressure member. A ring mount for force-loading the clamping member is provided for clamping and releasing the tool. An engaging device acting between the shaft and the pressure member is provided for positive-lockingly engaging the shaft upon actuation of the ring mount in a clamping direction of the clamping device.

Abstract: In a clamping device for clamping a disk-shaped tool to a threaded spindle of a hand-held machine tool, a nut part, which can be screwed onto the threaded spindle, presses a face plate against the tool. An axial rolling bearing is arranged between the nut part and the face plate. To achieve simple and reliable manual clamping and release, in conjunction with a slip clutch function under overload, a spring is arranged between the face plate and the nut part next to the axial rolling bearing. The spring forms a non-rotatable frictionally engaged connection between the nut part and the face plate. The axial rolling bearing supports the face plate on the nut part. The nut part slips in relation to the face plate when an upper limit value of the torque transmitted is exceeded, and the axial rolling bearing rotates.

Abstract: An easy-to-use adapter assembly having a minimum number of component parts that will permit sanding flapper wheels of various sizes to be conveniently used in the field with portable hand held electric grinders of conventional design. The assembly is preferably sold as a set that includes connectors of various lengths that can accommodate drive shafts of different sizes so that the assemblage can be conveniently used in connection with flapper wheels of various thickness having spindle receiving apertures of various sizes.