The invention relates to a processing section 1 and an adapter system 10 of a floor-processing machine. The processing section 1 comprises a base body 2 with a processing side 3 and a mounting side, wherein the mounting side is arranged on the opposite side of the processing side 3 of the base body 2. The mounting side comprises at least one first mounting element for detachably fastening the processing section to the adapter system. The processing side 3 is formed as a closed processing surface 5. The adapter system 10 has a receiving side 11 which comprises at least one receptacle 12. The receptacle 12 comprises at least one second mounting element for detachably fastening the processing section 1 in the receptacle 12. Finally, the invention relates to a floor-processing machine and a tool.

An oscillating power tool having a motor, a base flange driven about an output axis by the motor, and an accessory shaft movable relative to the base flange between a clamping position and a release position. A clamping flange is pivotably coupled to the accessory shaft for clamping an accessory in cooperation with the base flange.

The present invention relates to an attachment hub for attachment to a sander, comprising a quick-release attachment assembly configured for releasable and aligned engagement with a counterpart of a backup pad particularly for an abrasive disc. Furthermore, the invention relates to a backup pad having a disc-like shape and comprising a first major surface and a second major surface, the first major surface configured for direct or indirect attachment of an abrasive disc, and the second major surface configured for facing towards an attachment hub for attachment to a sander, and a mounting portion for aligned engagement with an attachment hub of a sander.

A power tool includes a housing (10), a spindle (4) supported in the housing to be pivotable or rotatable about a driving axis, a clamping shaft (60) that is selectively movable in the up-down direction relative to the spindle, a biasing member (70), a release member (71) and an actuating member (50). The release member is selectively movable in the up-down direction relative to the spindle and is configured to selectively interrupt transmission of upward biasing force from the biasing member to the clamping shaft. The release member is also configured to be locked to the spindle in a locked position while transmission of the biasing force is being interrupted. The actuating member is movable upward in the up-down direction relative to the spindle in response to being pressed upward by a clamping part (64) or by a tool accessory (91) to thereby unlock the release member from the spindle.

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.

A grinding machine tool comprises a housing, a driving assembly disposed in the housing, a grinding disc driven by the driving assembly, and having a grinding surface and a non-grinding surface, a switch driving the driving assembly, and a pressing plate disposed on the housing and having a first state in which the switch drives the driving assembly to drive the grinding disc when the pressing plate is operated, and a second state in which the switch stops driving the driving assembly when the pressing plate is not operated. The grinding machine tool has a grinding disc braking structure detached from the non-grinding surface when the pressing plate is in the first state; when the pressing plate is in the second state, the grinding disc braking structure moves toward the non-grinding surface and contacts with the grinding disc to stop the grinding disc from rotating.

The present disclosure provides a grinding wheel apparatus comprising a grinding wheel, a flange, a pull rod and a spindle. The grinding wheel is mounted on one side of the flange, and the other side of the flange is a tapered bucket, the tapered bucket has a buckle slot. The pull rod passes through the spindle, and a pull rod head of the pull rod is fixed to one end of the spindle, the tapered bucket is inserted into the spindle from the other end of the spindle, and the buckle slot is engaged with the T-shaped buckle of the pull rod in the spindle to fix the flange on which the grinding wheel is mounted to the other end of the spindle. The present disclosure further provides a grinding wheel cutting apparatus comprising the grinding wheel apparatus, and a cutting method using the grinding wheel cutting apparatus.

An accessory for an oscillating power tool that oscillatingly drives a removably attachable output element. The accessory includes an attachment portion configured to be removably attached to a housing of the oscillating power tool on a side of the output element that faces the housing. The attachment portion is at least partially annular and defines an axial opening therethrough. The attachment portion includes a circumferential inner surface defining the axial opening and a circumferential outer surface opposite the inner surface. The attachment portion is configured to snap-fit with the power tool housing.

A power tool includes a power head receiving power from a power source. A drive coupled to the power head extends along a longitudinal axis, and the drive is engaged with a connector. Various aspects relate to the connector. The connector includes an internal bore configured to couple to the drive to a shank of a working tool. The connector further includes an external lobe protruding radially outward from the longitudinal axis, the lobe having a locking mechanism configured to secure the second working tool in response to relative movement between the lobe and the second working tool in both an axial direction and a rotational direction.

A tool holding fixture for a tool drive and a device for polishing of optical workpieces, the tool holding fixture being coupled by a magnet and by quick connections to the tool drive and forming a preassembled unit with a tiltable tool holder and assigned bearing part together with a bellows.