Abstract: A backerplate for a portable drywall sander hub assembly includes a mounting portion and a backerplate body. The mounting portion includes a threaded bore adapted to couple the backerplate to a sander hub. The backerplate body is connected to the mounting portion. The backerplate body forms a plurality of apertures therein positioned radially between an outer circumference of the backerplate body and the mounting portion. The plurality of apertures are adapted for dust to pass therethrough during operation of a drywall sander with the backerplate mounted thereto.

Abstract: A protective member having a flexible member body defining an interior space adapted to receive a motion element and which extends to a peripheral margin releasably attachable to an external surface of a housing enclosing a drive unit operable to move the motion element inside of the flexible member body. whereby the protective member prevents entanglement of hair or fur with the drive unit or motion element.

Abstract: In order to optimize the lubrication of a rolling rod in a process for hot-rolling metallic, elongate hollow bodies (21) by means of the rolling rod (2), which is arranged in the hollow body and to which lubricant is applied before the hot-rolling operation, the lubricant is applied to the rolling rod in solid form.

Abstract: A back-up apparatus for use with a surface treating apparatus can include a back-up plate having a pad attachment face and a back-up pad having a first pad face and a second pad face. The back-up apparatus can also include a porous interface layer. The interface layer can include an outer face. The back-up apparatus can also include a layer of a first adhesive on the outer face and extending into the interface layer, and a layer of a second adhesive provided on the layer of the first adhesive. The second adhesive can be selected to releasably adhesively bond to an abrasive sheet. The first and second adhesives can be selected such that the adhesive bond between the first adhesive and the second adhesive is stronger than the adhesive bond between the second adhesive and the abrasive sheet.

Abstract: A contouring sanding device includes a support plate, a sanding pad covered by an abrasive material (e.g. sand paper), and a pressure dispersal system allowing the sanding pad to automatically conform to the contours of the surface of the object being sanded. The sanding device also includes either a handle or a power tool attachment piece.

Abstract: A clamp device for a sander includes: a clamp body slidable on a plate between a clamping position and an unclamping position at which positions a clamp strip contacts with or is away from a side surface of the plate; a support shaft provided on the plate close to the clamp body; an operating member having a first and second ends and rotatably connected to the support shaft, the first end being a connecting end connected to the clamp body, and the second end being an operating end extending above the clamp body, so that the operating member is elastically deformable in an expanding and contracting directions between the connecting end and the operating end; and an engagement member provided on the plate opposite to the support shaft and engageable with the operating end of the operating member while an intermediate portion of the operating member is being compressed.

Abstract: A sanding block for supporting an exteriorly mounted looped sanding belt having an elongated and planar shaped base. A planar shaped cover exhibits first and second oblique extending surfaces and, upon engaging with the base by a plurality of mating tabs and slots, collectively defines a three-dimensional article for supporting thereupon the looped sanding belt. A trigger exhibits a three-dimensional rectangular shape and extends laterally across a widthwise defined opening in the base in communicating fashion with an end surface associated with the cover, such that the trigger is positioned between the base and cover. The trigger is displaced in a first lateral direction to lengthwise displace the cover away from the base, the trigger displacing in a second and opposite lateral direction to reverse displace the cover inwardly towards the base.

Abstract: An abrasive article for polishing a substrate surface. The abrasive article includes a holder pad assembly and an abrasive member held in place with respect to a holder pad. The abrasive member further includes a first surface engaged with the holder pad assembly, and a second surface including an abrasive. A preload mechanism is positioned to bias the second surfaces of the abrasive member toward the substrate surface. One or more fluid bearing features on the second surface of the abrasive member is configured to generate lift forces during relative motion between the abrasive article and the substrate surface.

Abstract: Portable sander, in particular an orbital sander, having an abrasive sheet carrier (1) and having clamping means (3) for firmly clamping opposite abrasive sheet ends of an abrasive sheet (21) which can be supported on the abrasive sheet carrier (1), wherein first clamping means (3) together with an abrasive sheet end clamped thereon can be moved away from the other abrasive sheet end, clamped by means of second clamping means (3), for tensioning the abrasive sheet (21), and the first clamping means (3) have spring elasticity. Provision is made for the first clamping means (3) to come against a rigid stop element (9) with prestress in an end clamping position.

Abstract: A sanding block for supporting an exteriorly mounted looped sanding belt having an elongated and planar shaped base. A planar shaped cover exhibits first and second oblique extending surfaces and, upon engaging with the base by a plurality of mating tabs and slots, collectively defines a three-dimensional article for supporting thereupon the looped sanding belt. A trigger exhibits a three-dimensional rectangular shape and extends laterally across a widthwise defined opening in the base in communicating fashion with an end surface associated with the cover, such that the trigger is positioned between the base and cover. The trigger is displaced in a first lateral direction to lengthwise displace the cover away from the base, the trigger displacing in a second and opposite lateral direction to reverse displace the cover inwardly towards the base.

Abstract: A burnishing element is clamped to a lower surface of a bottom plate of a sanding machine and placed into tension through use of a first clamping mechanism and a second clamping mechanism that are positioned at two ends of the bottom plate, respectively. At least one of the first and second clamping mechanisms has a clamping element and a tensioning element which is used for tensioning the burnishing element. The bottom plate has a clamping area. The ends of the burnishing element are supported on the clamping area when the burnishing element is in placed into tension by the tensioning element.

Abstract: A clamp device for a sander includes: a clamp body slidable on a plate between a clamping position and an unclamping position at which positions a clamp strip contacts with or is away from a side surface of the plate; a support shaft provided on the plate close to the clamp body; an operating member having a first and second ends and rotatably connected to the support shaft, the first end being a connecting end connected to the clamp body, and the second end being an operating end extending above the clamp body, so that the operating member is elastically deformable in an expanding and contracting directions between the connecting end and the operating end; and an engagement member provided on the plate opposite to the support shaft and engageable with the operating end of the operating member while an intermediate portion of the operating member is being compressed.

Abstract: A sheet-like abrasive article includes a resilient backing sheet having opposed major surfaces and a continuous abrasive sheet affixed to the backing sheet. The abrasive sheet includes an abrasive support layer with abrasive particles arranged thereon, thereby defining an abrasive surface. A sanding tool assembly including such a sheet-like abrasive article is also disclosed.

Abstract: A device for restoring a light permeability of headlight lenses of motor vehicles has a holder, a working layer attached to the holder and adapted to clean and polish a surface of a headlight lense when the device is moved relative to the latter, and a sponge-like element located between the holder and the working layer and formed so that it applies an elastic biasing action to the working layer to provide a cleaning and polishing action by the working layer and at the same time to absorb a liquid required for the cleaning and polishing action.

Abstract: A hand-held, manually-operated sanding tool including a base member, a clamping mechanism, and a tab. The clamping mechanism is pivotally mounted to the base member, in alignment with a contact surface thereof such that the clamping mechanism pivots between a closed position and an open position in which a gap is defined between the clamping mechanism and the contact surface. The tab extends at least partially between the contact surface and the clamping mechanism, and establishes a stop surface that positively positions an edge of a sheet of abrasive material relative to an end of the base member as part of a loading operation.

Abstract: This tool includes: a rigid support (104) having a transverse end surface (113); an elastically compressible interface that is pressed against and covers the end surface; a flexible pad adapted to be pressed against the optical surface, itself pressed against and covering the interface on the opposite side of and in line with the end surface (113); spring return element (115) connecting the support (104) to a peripheral portion of the flexible pad situated transversely beyond the end surface (113); and a flexible flange (131) that is part of a base (130) to which the rigid support (104), which is surrounded by the flange (131), also belongs.

Abstract: A rapid locking device axially secures a disc-type tool (16), in particular a grinding disc on the flange (24) of a driven spindle (14), the spindle (14) having an axial bore containing at least one locking element in the form of a plate spring (28), which co-operates with a locking pad (22). The tool can be locked between contact surfaces of the flange (24) and the locking pad (22), the distance between said surfaces being modifiable. The shank (30) of the locking pad (22) can be accommodated in the bore of the spindle (14) and can be secured in a friction fit by the locking element (20).

Abstract: A sanding block comprising slideably interrelated parts for accommodating an endless sanding belt and having a dual action means for selectively moving the parts into bearing relation with the sanding belt for maintaining tension thereon or moving the parts out of such bearing relation with the sanding belt for facilitating removal or adjustment of the sanding belt relative to the sanding block, while also providing the sanding block with a novel convexly curved surface for improved tool versatility.

Abstract: A polishing apparatus is provided for optimizing a polishing profile in consideration of even such parameters as the temperature on the surface of an object to be polished, and the thickness of a polishing pad, in addition to a polished amount. The polishing apparatus for polishing the object to be polished under control of a control unit CU has at least two pressing sections, and comprises a top ring which can apply an arbitrary pressure to the object to be polished from each of the pressing sections, a measuring device IM for measuring a polished amount of the object to be polished, and a monitoring device SM for monitoring the object to be polished for a polishing condition. The control unit CU forces the polishing apparatus to polish the object to be polished in accordance with a simulation program for setting processing pressures required to optimize a polishing profile of the object to be polished to the top ring based on the output of the measuring device IM and the output of the monitoring device SM.

Abstract: A tool for co-operating with a fixing device wherein the tool comprises a tool body in the form of a circular disk, with a central opening and a radially inwardly facing locking surface. The fixing device comprises at least one radially outwardly facing projection of a locking element, which can be actuated manually and with which the fixing device can be releasably connected to the tool. In the locking position the at least one radially outwardly facing projection of the fixing device engages over the inwardly facing locking surface of the tool. The tool body is axially secured and held non-rotatably relative to the fixing device. The at least one radially outwardly facing projection of the fixing device and a support for the tool are arranged axially displaceably relative to each other, wherein the axial displacement travel is blockable by a centrifugal force device.

Abstract: A blade-mounting adaptor for a power tool has a blade-mounting stud on which the blade is mounted at a first end. The blade is mounted upon the stud in a manner such that it is capable of axial motion along the length of the stud when exertion is applied to the blade. The blade is provided with an adjustable pre-set bias force against the axial motion.

Abstract: A hand-held, manually-operated, sanding tool for use with a replaceable sheet-like abrasive material, such as sandpaper, includes a base member and clamping mechanisms pivotally connected with opposed ends of the base member. The clamping mechanisms include tensioning members arranged to slidably engage angled contact surfaces provided on the ends of the base member opposite the clamping mechanisms to tighten the sheet-like abrasive material as it is installed on the tool.

Abstract: A manual grinding tool, in particular an oscillating sander (10), with a housing (12) and an abrasive sheet carrier (14), against the working surface (15) of which an installable abrasive sheet (16; 150) rests, whereby said abrasive sheet is installed using clamping means (20, 23; 360, 500) which clamp opposite abrasive sheet ends (17, 19; 155) to the abrasive sheet carrier (14), is made easier to operate and handle because it is lighterweight and more effective by the fact that the clamping means (20, 23; 350, 500), together with an abrasive sheet end (17; 155) clamped thereto, are capable of being moved away from the diametrically opposed abrasive sheet end (19; 155) which is also clamped thereto, so that said abrasive sheet is locked under tensile stress, whereby the clamping means are composed of resilient material.

Abstract: A polishing device capable of polishing a repaired surface in a specified shape, comprising a polishing panel body holding a polishing material on a surface opposed to the repaired surface and polishing the repaired surface in the specified shape with the polishing material and a holding part installed on the polishing panel body and held when the polishing panel body is operated, wherein the holding part is installed on the polishing panel body rotatably about an axis set on the polishing panel body, whereby a controllability can be improved, the labor of a worker can be reduced, and the disturbance of smoothness on the repaired surface and the premature wear of sand paper can be suppressed.

Abstract: An apparatus including first and second sections of a sanding block slidably interconnected and adapted for use with a continuous belt, and a resilient member interposed between the first section and second sections such that the resilient member both selectively repels the first and second sections one from the other while securing the first and second sections in a desired position relative to one another. The resilient member is rotatably connected to the first section of the sanding block such that the resilient member moves between alternate rotational positions. The resilient member produces variable pressure on the second section of sanding block depending on the rotational position of the resilient member. The resilient member includes a lever for securing the second section of sanding block in a position relative to the first section of sanding block.

Abstract: A flap disc includes a backing disc having an inner radial portion and abrasive flaps secured to an outer radial portion of the backing disc in an overlapping manner. First and second metal reinforcement rings include a body contacting one of front and rear surfaces of the backing disc adjacent a central opening. A threaded nut includes a body having an outer surface defining a shoulder and a retainer connected to the body. The shoulder contacts the second ring adjacent the central opening of the backing disc. The retainer is rolled outwardly to contact the first ring such that the nut and the rings are secured to the backing disc.

Abstract: A reusable mount for an abrasive device (14) including a nut (12) and a support unit (10). The nut (12) includes a threaded barrel (20) and a flange (22). The barrel extends through a central opening (15) in the abrasive device and the support unit it threadably attached by hand to the barrel to capture the abrasive device between the flange and the support unit. The assembled abrasive device and mount are then threadably secured to the spindle (70) of a power tool for use.

Abstract: A power grinder, in particular an oscillating grinder (10), includes a platelike grinding sheet holder (14), on whose working face (15) a grinding sheet (16) can be braced. Secure clamping of the grinding sheet and easy changing of the grinding sheet are provided, because the grinding sheet (16) can be inserted between the clamping jaw (22) and the grinding sheet holder (14)—counter to the elastic prestressing of the clamping jaw (22)—and is firmly held increasingly strongly counter to the insertion direction in proportion to the tensile force engaging it.

Abstract: A power grinder, in particular an oscillating grinder (10), having a housing (12) and a grinding sheet holder (14), on whose working face (15) a grinding sheet (16) to be received is braced, and its reception is effected by means of clamping means (20, 23) that lock opposite grinding sheet ends (17, 19) to the grinding sheet holder (14), is made easier to operate, and its machining capacity is improved, by providing that for equipping it with the grinding sheet, the clamping means (20, 23) are movable jointly with a grinding sheet end (17) clamped to them away from the opposite, likewise clamped grinding sheet end (19), so that the latter is locked, while under tensile stress.

Abstract: An oscillating grinder (10) with a housing (12) a grinding sheet holder (14) having clamping means (20, 23; 200, 230; 334) for receiving a grinding sheet (16), whose grinding sheet ends (17, 19) can be clamped firmly to the grinding sheet holder (14), and in which the clamping means (20, 23; 200, 230; 334, 1334) are levers with a pivot axis (24; 224; 40; 440; 1440) supported on the grinding sheet holder side and clamping jaws (22; 220; 1222; 336, 338) that clamp the grinding sheet (16) on one end, preferably manually actuatable on the other end, can be equipped faster, more conveniently and more securely with a grinding sheet (16) by providing that one of the grinding sheet ends (19) for one-handed operation can be clamped solely by insertion between first clamping means (20, 23; 200, 230; 334; 1334), and the other grinding sheet end (17), likewise for one-handed operation, can be clamped after being placed in second clamping means (34; 334; 1334) and after their actuation; the grinding sheet (16) can be tens

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: A finishing machine having a sandpaper positioning function includes a frame, a rotation wheel rotatably mounted on the frame, a sandpaper bonded on the rotation wheel, and an O-ring mounted on the rotation wheel and urged on the sandpaper. The rotation wheel has a periphery formed with an annular flange radially extending inward. The annular flange has an inner periphery formed with an annular groove. The O-ring is inserted into the annular groove of the rotation wheel and urged on the annular flange of the rotation wheel so as to position the sandpaper rigidly and stably.

Abstract: Hand held abrading tools are disclosed. The abrading tools include clamping mechanisms to quickly and reliably secure sanding paper, bristled sheets, polishing cloths, and the like, to the tool, while at the same time providing the operator with increased agility and ability to reach relatively hard to reach or oddly shaped surfaces.

Abstract: An abrasive drum, suitable for polishing or sanding a workpiece, that incorporates an internal expansion member, configured so that when a belt of abrasive material fitted to the exterior cylindrical surface so that a loop of the band is disposed around the internal expansion member, expansion of the member tensions the abrasive band against the surface of the drum. The invention includes the abrasive drum, a sander or polisher that incorporates the abrasive drum, and a method of using the drum of the invention to grind, shape, polish, or sand a workpiece.

Abstract: The invention provides a sanding system comprising a detachable sanding pad with a plurality of sides adapted for different degrees of sanding retained in contact with a backing plate by teeth penetrating into opposed sides of the sanding pad.

Abstract: A hand held tool using continuous sanding belts for sanding and smoothing flat surfaces with the additional capability to produce more uniformly rounded edges and corners of various work pieces. Its two piece construction comprises a flat base plate rotationally attached to the bottom side of a housing. The housing has along the length of its top side a deep channel into which a portion of a mounted sanding belt may be wedged, creating a concave sanding surface, that can then be used to produce more uniformly rounded edges and corners. The housing is made of a resilient, compressible material, while the base plate is of a rigid structure. The tool incorporates a way for placing and tensioning continuous sanding belts on it by simply swiveling the base plate that is attached to the bottom of the housing, which by such rotational positioning compresses the compressible material of the housing, or releases it, thus applying or releasing tension on a mounted belt.

Abstract: A sanding block includes a generally rectangular base housing upon which a multiply contoured generally convex hand grip is secured. The hand grip further defines inwardly extending concave portions which facilitate easy and secure grip by the user. An over-center lever clamp mechanism is operative at each end of the sanding block to secure the opposed ends of a sandpaper sheet in a releasable attachment.

Abstract: A manually operated sander including a motor-driven grinding plate for treating a workpiece, and a device (2) for releasably clamping abrasive paper to the grinding plate, with the clamping device (2) having a clamping surface element (9) and a clamping stirrup (11) eccentrically pivotable with respect to the clamping surface element (9) for securing at least one end region (16) of the abrasive paper (3), with a gap (S) between a pivotal path (B) of the clamping stirrup (11) and the clamping surface element (9) substantially closing toward a region of the clamping surface element (9) that cooperates with the clamping stirrup (11) for clamping the at least one end region (16) of the abrasive paper (3).

Abstract: A sanding block includes a generally rectangular base housing upon which a multiply contoured generally convex hand grip is secured. The hand grip further defines inwardly extending concave portions which facilitate easy and secure grip by the user. An over-center lever clamp mechanism is operative at each end of the sanding block to secure the opposed ends of a sandpaper sheet in a releasable attachment.

Abstract: An apparatus for supporting an abrasive material includes a flexible base defined by a first end and a second end, and by a lower surface which supports the abrasive material and an upper surface opposite the lower surface. The flexible base is fabricated from a resilient material so as to assume an essentially flat shape when the ends of the flexible base are not acted on by external forces. A front frame is member attached to the flexible base proximate the first end, and a rear frame member is attached to the flexible base proximate the second end. An adjustable connecting link has a first end connected to the front frame member in fixed relation thereto. A second end of the adjustable connecting link is connected to the rear frame member by a variably positionable connection.

Abstract: The present invention relates to a sanding tool, and more particularly to a sanding tool for smoothing a repair surface. A sanding tool according to the invention is for sanding a surface of a target plane to be repaired into a predetermined condition, which is composed of a base plate, on the front face side of which sandpaper can be stretched, and movable base plates being disposed bendably on opposite sides of the base plate and on each front face side of the movable base plate, sandpaper can be stretched. The movable base plates are resiliently energized in a direction wherein the surface of the base plate becomes flush with the surfaces of the movable base plates, respectively. According to a sanding tool of the present invention, a surface to be repaired can be sanded by an easy operation to obtain a good finish, even if an operator is not skilled.

Abstract: A reusable quick change mount including a support unit or backing member and a threaded retainer member or nut having a barrel which is received within a bore in the support unit. A resiliently deformable member is disposed within the bore of the support unit and frictionally engages the outer surface of the barrel on the nut to capture an abrasive device which is disposed between a flange extending outwardly from the nut and the support member. The surfaces on the support member and the flange which engage the abrasive device include anti-slip surfaces.

Abstract: A backup pad for engaging and supporting abrasive sheets, the backup pad being mounted securely to a drive shaft to prevent relative rotation thereto, and to allow easy mounting and dismounting of the backup pad to the mounting shaft without the use of tools. The backup pad includes a body comprising a front surface and a back surface, releasable engagement means provided on the front surface for releasably engaging an abrasive article, and a mounting boss provided on said rear surface. The mounting boss includes a first end facing away from the body, and an opening in the first end of the boss, the opening being formed by an inner surface generally perpendicular to said body and defining a non-circular cross-section. The opening includes elastic means such as an o-ring for releasably engaging a drive shaft mounted in said opening. Also disclosed is a method of using such a backup pad.

Abstract: An apparatus for supporting an abrasive material includes a flexible base defined by a first end and a second end, and by a lower surface which supports the abrasive material and an upper surface opposite the lower surface. The flexible base is fabricated from a resilient material so as to assume an essentially flat shape when the ends of the flexible base are not acted on by external forces. A front frame is member attached to the flexible base proximate the first end, and a rear frame member is attached to the flexible base proximate the second end. An adjustable connecting link has a first end connected to the front frame member in fixed relation thereto. A second end of the adjustable connecting link is connected to the rear frame member by a variably positionable connection.

Abstract: A grindstone adapter, in which a drive force transmitted portion and plural stop projections are formed on a central boss of a disc-like pad to which a grindstone disc or a grindstone is attached, a drive portion fitting in the drive force transmitted portion and stop concave portions engaging with the stop projections are formed on a drive-side coupling fitting in the boss, and a depression cylinder which is urged by a spring toward a side for maintaining an engaging state between the stop projections and the stop concave portions, is formed on the drive side coupling.

Abstract: A backup pad for engaging and supporting abrasive sheets, the backup pad being mounted securely to a drive shaft to prevent relative rotation thereto, and to allow easy mounting and dismounting of the backup pad to the mounting shaft without the use of tools. The backup pad includes a body comprising a front surface and a back surface, releasable engagement means provided on the front surface for releasably engaging an abrasive article, and a mounting boss provided on said rear surface. The mounting boss includes a first end facing away from the body, and an opening in the first end of the boss, the opening being formed by an inner surface generally perpendicular to said body and defining a non-circular cross-section. The opening includes elastic means such as an o-ring for releasably engaging a drive shaft mounted in said opening. Also disclosed is a method of using such a backup pad.

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 abrasive tool includes in combination a tubular sleeve of exteriorly coated abrasive which has an axial length and an inside diameter. A drive arbor for the sleeve includes a mandrel adapted to be rotated by a power tool and the like. An elastomeric generally cylindrical arbor is mounted on one end of the mandrel and has an outer and inner axial end. The arbor includes a radially projecting stop flange at its inner end and has a tapered configuration between the stop flange and its outer end to receive the abrasive tubular section, but which creates an interference fit as the tubular section is telescoped on the arbor until one axial end of the tubular section engages the stop flange. The arbor body is provided with non-radial slots which make the body more pliable in a static condition, but which improve the grip of the arbor on the sleeve at speed. The slots also improve heat dissipation.

Abstract: A new Countouring Sanding System for sanding various shapes of surfaces while providing the user an ergonomic sanding block decreasing wear on the user's hands. The inventive device includes an ergonomic sanding block, a template securing means attached to the ergonomic sanding block, and a molding template removably secured within the ergonomic sanding block by the template securing means.

Abstract: A new Countouring Contouring Sanding System for sanding various shapes of surfaces while providing the user an ergonomic sanding block decreasing wear on the user's hands. The inventive device includes an ergonomic sanding block, a template securing means attached to the ergonomic sanding block, and a molding template removably secured within the ergonomic sanding block by the template securing means.