Festool GmbH

A dust removal device, in particular dust collection device, for a hand-held machine tool, in particular a grinding machine or saw, has a tubular connection body for connecting to a tubular dust removal connector of the tool. A dust/air stream for conveying away dust from grinding machine operation can flow from a dust removal space to the device, via the connector. The body has a clamping mechanism for clamping to the connector with an activation element for activating it between release and clamping positions. An accommodation cross-section of the body for the connector is smaller in the clamping position for clamping connector to body than in the release position for removing device from connector. The element includes a pivot lever mounted to pivot about a pivot axis and angle, between a clamping activation position assigned to the clamping position and a release activation position assigned to the release position.

A connector mechanically fastens a first component to a second component. The first component has at least a first coupling groove which has a first undercut, effective along a groove depth direction. The second component has at least a second coupling groove which has a second undercut, effective along a groove depth direction. The connector is plate-like or flat-bar-like. The connector has a first engagement element for anchoring in the first undercut and a second engagement element for anchoring in the second undercut. The connector has an urging member for positioning at least part of the first engagement element in the first undercut and at least part of the second engagement element in the second undercut. The urging member is kinematically coupled to the first engagement element and the second engagement element. A component connection also includes the first component, the second component, and a connector of this type.

A portable handheld reciprocating saber saw having a suction device, wherein: the handheld saber saw has a housing ( 17 ) in which a drive motor ( 11 ) is arranged and has a tool holder ( 14 ), which can be driven to linearly oscillate along an axis of movement (SO) by the drive motor ( 11 ), for a sawing tool ( 15 ) having an elongate design and extending along a longitudinal axis for making a saw cut in a workpiece (W). The suction device ( 30 ) has at least one guide contour ( 55 ) which, when the suction device is mounted on the handheld reciprocating saber saw, protrudes in front of the machine guide surface ( 23 ) such that the handheld reciprocating saber saw can be guided on the workpiece by means of the at least one guide contour ( 55 ) instead of the machine guide surface.

Circular saws with transparent windows that extend within blade guard openings and cover fastening structures. The circular saws include a motor and an arbor configured to operatively attach a circular saw blade to the circular saw. The circular saws also include a blade guard. The blade guard includes a blade guard opening, which is positioned to permit a user of the circular saw to view a leading edge of the circular saw blade as the circular saw cuts a workpiece. The circular saws also include a transparent window, which extends within the blade guard opening, and a cover fastening structure, which is configured to selectively attach a splinter guard to the blade guard while the transparent window extends within the blade guard opening.

A suction device with a suction device housing ( 20 ), in which a suction turbine ( 11 ) for generating a suction flow (S) is arranged, the suction turbine ( 11 ) having a suction turbine inflow opening ( 11 A), through which the suction flow (S) can flow into the suction turbine ( 11 ) and at least one suction turbine outflow opening ( 11 B), through which the suction flow (S) can flow out of the suction turbine ( 11 ), wherein the suction device housing ( 20 ) has a suction inlet ( 12 ) for letting in the suction flow (S) and a dust collecting chamber ( 21 ) for collecting dust contained in the suction flow (S), wherein a filter element ( 13 ) for retaining dust in the dust collecting chamber ( 21 ) is arranged between the dust collecting chamber ( 21 ) and a suction turbine inflow opening ( 11 A) of the suction turbine ( 11 ). The suction turbine inflow opening ( 11 A) of the suction turbine ( 11 ) is connected to at least one cooling air duct ( 99, 100, 101 ), which has a duct inflow opening ( 97 A, 98 A, 102 ) through which cooling air (KL) from an area surrounding the suction device ( 10 ) can flow past the filter element ( 13 ) to the suction turbine ( 11 ).

A working apparatus that has a work trestle that can adopt a working configuration for its intended use and a transport configuration for its transportation. The work trestle has a support body suitable for placing objects and support leg structures arranged in a positionally variable manner on the support body. The transport of the work trestle is facilitated by a transport container with a carrying handle which may either be a separate component in relation to the work trestle or form an integral part of the work trestle as the support body.

Circular saws are disclosed herein. The circular saws include a cutting assembly, a base plate, a pivot assembly, and a pivot bias mechanism. The cutting assembly includes a motor and an arbor. The base plate defines an assembly-facing side and an assembly-opposed side. The pivot assembly operatively attaches the cutting assembly to the base plate. The cutting assembly and the base plate are configured to operatively rotate, relative to one another and about a pivot axis of the pivot assembly, to selectively vary a region of the circular saw blade that extends on the assembly-opposed side of the base plate. The pivot bias mechanism is configured to apply a linear force between the cutting assembly and the base plate in a linear bias direction that urges the cutting assembly and the base plate in opposed directions along the pivot axis.

Track saws with self-adjusting rib-guide assemblies and methods of operating self-adjusting rib-guide assemblies of track saws are disclosed herein. The track saws include a motor, an arbor, and a base plate. The base plate defines an arbor-facing side and an arbor-opposed side. The base plate includes a rib-receiving channel and a self-adjusting rib-guide assembly. The self-adjusting rib-guide assembly at least partially defines the rib-receiving channel and is configured to automatically accommodate a range of raised rib transverse widths. The methods include positioning a raised elongate rib of the track within a rib-receiving channel of a base plate of the track saw. During the positioning, the methods also include establishing a contact force between the raised elongate rib and the self-adjusting rib-guide assembly. Responsive to the contact force, the methods further include moving at least a portion of the self-adjusting rib-guide assembly relative to a remainder of the track saw.

A disc tool for a processing machine for grinding and/or polishing a workpiece (W); wherein the disc tool ( 10 A, 10 B, 10 B) has a carrier ( 20 ) for attachment to an output ( 85 ) of the processing machine ( 80 ); wherein a cushion element ( 40 A, 40 B, 40 C) made of elastic material and a retaining wall element ( 41 A, 41 B, 41 C, 41 D) for retaining the cushion element ( 40 A, 40 B, 40 C, 61 ) are arranged on the carrier ( 20 ); wherein the retaining wall element ( 41 A, 41 B, 41 C, 41 D) is held on the carrier ( 20 ) by means of retaining bolts ( 35 ); wherein retaining bolt passage openings ( 48 ) of the retaining wall element ( 41 A, 41 B, 41 C, 41 D) extending through retaining mounts ( 28 ), of the carrier ( 20 ) are accommodated along bolt sections ( 36 ) of the retaining bolts ( 35 ) extending along the bolt longitudinal axes (BL), and the retaining wall element ( 41 A, 41 B, 41 C, 41 D) is held between bolt heads ( 37 ) of the retaining bolts ( 35 ) and the carrier ( 20 ); and wherein an adhesive layer ( 50 ) is arranged on a side of the retaining wall element ( 41 A, 41 B, 41 C, 41 D) opposite the carrier ( 20 ), on which adhesive layer a processing means ( 70 ) for grinding and/or polishing the workpiece (W) can be releasably attached to the disc tool ( 10 A, 10 B, 10 B). The adhesive layer ( 50 ) has recesses ( 52 ) assigned to the bolt heads ( 37 ).