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.

The invention relates to a tool device which is suitable for use with a machine tool, in particular a hand guided machine tool, having a driving device moving, in particular in an oscillating manner, around a driving axis. The tool device has an attachment device which allows it to be fastened on a machine tool such that its driving axis and an axis of rotation of the tool substantially coincide. The attachment device, for absorbing the driving force, has at least two driving area regions, which are spaced apart from said tool axis of rotation and each has a plurality of surface points. The tangent planes to said surface-area points are inclined in regard to an axial plane, which encloses the tool axis of rotation. Furthermore, said tangent planes are inclined regard to a radial plane which extends perpendicularly to the tool axis of rotation. This means that the torque introduced into the tool device by the machine tool, via the driving device, is reliably absorbed.

A clamp arrangement for securing an accessory to an oscillating power tool can include a clamp assembly including a first clamp member that moves relative to the accessory between a closed position wherein the clamp assembly retains the accessory and an open position wherein the first clamp is offset from the accessory permitting removal of the first accessory from the clamp assembly. The clamp assembly can further comprise a second clamp member having a first portion that opposes the first clamp member and cooperates with the first clamp member to clamp the accessory between the first and second clamp members. An attachment plate can carry the clamp assembly. The attachment plate can have a first mating detail formed thereon that is configured to selectively and removably mate with a complementary second mating detail on the power tool in an assembled position.

An insertion tool includes at least one machining region, and at least one fastening region. The at least one fastening region is configured to couple to at least one tool holding fixture of a handheld machine tool, and has at least two fastening elements arranged substantially into a circle around a drive axis. The at least one fastening region is further configured to be at least substantially free of recesses in a radial direction within the circle.

An accessory for coupling to an oscillating power tool includes a working end portion extending along a working axis and an attachment portion coupled to the working end portion including a top wall, a bottom wall spaced apart from the top wall, and a peripheral wall extending from the top wall to the bottom wall at least partially around the top wall to form a portion of a polygonal shape. A generally U-shaped opening defined in the top wall extends along an attachment axis at an obtuse angle to the working axis and is open to a gap in the peripheral wall. A plurality of radial openings is defined in the top wall between the U-shaped opening and the peripheral wall. The attachment portion is configured to couple the attachment portion to at least two differently configured oscillating power tools.

A power tool for driving an accessary removably held between first and second clamp parts includes a first shaft having the first clamp part, a second shaft for moving the second clamp part, a holding member movable relative to the second shaft, a moving member for moving the holding member, and a biasing member for biasing the moving member. The second shaft is disposed inside the first shaft. The holding member enables the second clamp part and the first clamp part to hold the tool accessary therebetween in a first position, and disables the second clamp part and the first clamp part from holding the tool accessary in a second position. The moving member moves the holding member from the first position to the second position, and the biasing member biases the moving member when the holding member is located in the second position.

A power tool having a housing, a motor, a tool holder driven about an output axis by the motor, and an output element for performing an operation on a workpiece. The tool holder has a locating feature including a tapered portion becoming narrower in a direction away from the surface of the tool holder. The output element has an aperture for receiving the locating feature and a face facing the surface of the tool holder when the locating feature is received. The power tool also includes a flange for transferring a clamping force for urging the output element towards the tool holder and a tab projecting from the flange for finger tightening the flange. A biasing member provides the clamping force toollessly. A gap is defined between the surface of the tool holder and the face when the tapered portion of the locating feature is fully received in the aperture.

An accessory for coupling to an attachment mechanism of an oscillating power tool includes a working end, an opposite rear end, and a fitment portion adjacent the rear end portion. The fitment portion includes a central opening having a central portion and a rearward portion open to the rear end, and configured to receive a post of a tool clamping mechanism. The fitment portion further includes a first plurality of openings in communication with and extending radially outward from the central portion, a second plurality of openings not in communication with and positioned radially outward from the central portion. The central portion, the first plurality of openings, and the second plurality of openings are configured to couple the fitment portion to a plurality of different configurations of attachment mechanisms for oscillating power tools.

The present invention relates to a rapid-replacing structure of multifunctional saw, including a head housing, a tool rest and an output device, wherein the output device comprises an output shaft. It also includes a quick-change device that consists of a rapid-replacing buckle, an eccentric block, a movable rod, a collet chuck, a tensioning rod and a compression spring. The rapid-replacing buckle and the eccentric block are connected with the top of the head housing through a straight pin. The movable rod is arranged in the output shaft, with its top end closely connected to the eccentric block and its bottom end connected to the tensioning rod by screw thread. The rapid-replacing structure of the multifunctional saw can realize the purpose of blade removal and replacement simply by shifting the rapid-replacing buckle on the upper side of the head housing, without using other auxiliary means, so it is simple and fast to operate.

A clamp arrangement for securing an accessory to an oscillating power tool can include a clamp assembly including a first clamp member that moves relative to the accessory between a closed position wherein the clamp assembly retains the accessory and an open position wherein the first clamp is offset from the accessory permitting removal of the first accessory from the clamp assembly. The clamp assembly can further comprise a second clamp member having a first portion that opposes the first clamp member and cooperates with the first clamp member to clamp the accessory between the first and second clamp members. An attachment plate can carry the clamp assembly. The attachment plate can have a first mating detail formed thereon that is configured to selectively and removably mate with a complementary second mating detail on the power tool in an assembled position.