Abstract: A table saw assembly in one embodiment includes a base portion, a saw blade opening, a saw assembly and a first extension. The base portion includes a base work piece support surface which defines a support plane. The saw blade opening is defined in the base work piece support surface. The saw assembly includes a saw blade which is positionable to extend upwardly through the saw blade opening. The first extension includes a first extension work piece support surface which is pivotable with respect to the base portion between a first position and a second position. In the first position, the first extension work piece support surface is coplanar with the base work piece support surface. In the second position, the first extension work piece support surface is located above the support plane.

Abstract: A safety garment includes at least one sensor unit for detecting at least one user-specific characteristic value and/or at least one environment-specific characteristic value. The safety garment further includes at least one communication unit configured to transmit the detected user-specific characteristic value and/or the detected environment-specific characteristic value to at least one other safety garment in order to communicate with the other safety garment.

Abstract: The disclosure is a mobile tool-system function device that can be disposed on an extremity of an operator, having at least one sensor unit for sensing at least one operator-specific characteristic quantity and/or at least one position-specific characteristic quantity, and having at least one computing unit, which is designed to determine at least one state, in particular an emergency situation, in dependence on the at least one sensed operator-specific characteristic quantity and/or the at least one sensed position-specific characteristic quantity. The mobile function device further comprises at least one plausibility unit, which is designed to perform a plausibility check, in particular a plausibility check in respect of the presence of an emergency situation, in dependence on the at least one sensed operator-specific characteristic quantity and/or the at least one sensed position-specific characteristic quantity.

Abstract: A mobile function device, in particular a mobile tool-system function device configured to be disposed on an extremity of an operator, includes at least one sensor unit configured to sense at least one emission characteristic quantity and/or at least one position-specific characteristic quantity, and at least one communication unit configured to transmit electronic data to at least one external unit, in particular to a portable power tool and/or to an item of safety clothing. The mobile function device further includes at least one computing unit configured to generate, in dependence on the at least one sensed emission characteristic quantity and/or the at least one sensed position-specific characteristic quantity, electronic data configured to control the at least one external unit by open-loop and/or closed-loop control. The at least one communication unit configured to transmit the generated electronic data to the at least one external unit.

Abstract: A mobile functional apparatus is arrangeable on a body part of a user and includes at least one communication unit configured to communicate with at least one external unit and/or at least one sensor unit configured to capture at least one user and/or environment parameter. The mobile functional apparatus further includes at least one energy harvesting unit configured to convert at least one form of energy into electric power for supplying electric power at least to the at least one communication unit and/or to the at least one sensor unit.

Abstract: A guard device for a saw system in which the table saw is not operated without a saw blade guard, unless a user intends to make a non-through cut in a workpiece. The guard device, in one embodiment, determines whether an adjusted saw blade height corresponds to a thickness of the work piece to be cut and prevents the tool or motor driving the saw blade from operating if the saw blade is adjusted too high, in order to improve work conditions.

Abstract: A method of detecting a kickback event for a table saw includes operatively connecting a stress sensor to the table saw that is configured to detect a characteristic of a work component of the table saw, the work component being coupled to a workpiece being cut by the table saw during a cutting operation. The stress sensor outputs stress signals indicative of the characteristic of the work component. A speed of the saw blade is then controlled based on the stress signals.

Abstract: A dust collection system for a circular saw having a saw housing and a motor configured to rotationally drive a saw blade includes a dust collecting member and a guide mechanism. The dust collecting member includes a body having a first end in which a dust collection opening is defined and a second end operably connectable to an airflow generation device. The guide mechanism is configured to support the dust collecting member on the saw housing such that the dust collection opening remains adjacent to an outer edge of the saw blade in response to one of the dust collecting member and the guide mechanism contacting the workpiece to move the dust collecting member.

Abstract: A power tool brake mechanism, in particular a portable power tool brake mechanism, includes at least one mechanical brake unit that has at least one brake element mounted rotatably about a rotation axis and at least one actuating unit that has at least one movably mounted actuating element. The actuating unit is configured to activate and/or deactivate the brake unit. The power tool brake mechanism further includes at least one movement converting unit that has at least one movement converting element configured to convert a movement of the actuating element into a movement of a counter-brake element of the brake unit. The movement of the counter-brake element is at least in a direction that is different from a direction extending along the rotation axis of the brake element.

Abstract: The handheld power saw includes a drive mechanism with a lifting rod; a saw blade with an elongated recess in a guide region thereof and a retaining region with a T-shaped extension; a coupling device for retaining and driving the saw blade located on the lifting rod, which includes a clamping sleeve configured to receive the T-shaped extension to connect the saw blade to the lifting rod; a guide assembly for guiding oscillatory motion of the saw blade, which includes two lateral bracing devices arranged on opposite sides of the saw blade that shield the coupling device from shear forces; a pressure roller supported on a bolt, which is arranged to bear on an edge of the saw blade and a pressure bolt arranged in the elongated recess to directly guide the saw blade.

Abstract: A guide assembly in one embodiment includes at least one guide rigidly supported by a table saw, a bearing assembly including a first, a second, and a third bearing engaged with the at least one guide, and a fence base assembly supported by the bearing assembly, wherein the first and the second bearings are biased in a first direction with respect to the at least one guide and the third bearing is biased in a second direction with respect to the at least one guide, the second direction at least partially opposite to the first direction.

Abstract: Provided is a table saw assembly including a base portion, a saw blade opening, a saw assembly and a first leg assembly. The base portion includes a base work piece support surface which defines a support plane. The base portion includes a lower surface opposite the base work piece support surface. The saw blade opening is defined in the base work piece support surface. The saw assembly includes a saw blade which is positionable to extend upwardly through the saw blade opening. The first leg assembly includes a first foot portion. The first leg assembly is pivotable between a first position and a second position. In the first position, the first foot portion is positioned lower than the lower surface of the base portion. In the second position, the first foot portion is positioned above the lower surface of the base portion.

Abstract: A power tool having a depth adjustment mechanism includes a motor housing, a support base for supporting the motor housing, and a depth adjustment member coupled to the support base and movable between two positions. The depth adjustment member in a first position contacts a surface portion of the motor housing and in a second position is distanced from the surface portion of the motor housing such that the movement of the depth adjustment member from the first position to the second position is in a direction parallel to a plane that is substantially tangent to the surface portion of the motor housing.

Abstract: A table saw assembly in one embodiment includes a base portion with a base work piece support surface defining a support plane and a saw blade opening defined in the base work piece support surface, a saw assembly, a first extension and a first sliding support assembly. The saw assembly includes a saw blade positionable to extend upwardly through the saw blade opening. The first extension includes a first extension work piece support surface pivotable with respect to the base portion between a first position and a second position. In the first position, the first extension work piece support surface is coplanar with the base work piece support surface. In the second position, the first extension work piece support surface is located above the support plane. The first sliding support assembly is movable along the support plane and is configured to support the first extension in the first position.

Abstract: A power tool includes a table structure defining a blade slot, a blade positioned within the blade slot, a motor assembly to rotate the blade, and a dust chute assembly. The dust chute assembly surrounds at least a portion of the blade and includes a plenum for receiving airflow scavenged from operation of the motor assembly and redirects the airflow to convey dust and debris from operation of the blade to a discharge outlet.

Abstract: A dust collection system for a circular saw having a saw housing and a motor configured to rotationally drive a saw blade includes a dust collecting member and a guide mechanism. The dust collecting member includes a body having a first end in which a dust collection opening is defined and a second end operably connectable to an airflow generation device. The guide mechanism is configured to support the dust collecting member on the saw housing such that the dust collection opening remains adjacent to an outer edge of the saw blade in response to one of the dust collecting member and the guide mechanism contacting the workpiece to move the dust collecting member.

Abstract: An elastic connection is established between housing parts of a power-driven machine tool by an elastic connecting element which is attached in form-locking fashion to at least one of the housing parts to be connected, in such a way that the connecting element has a land penetrating a breach of the housing part, and this land connects covering parts of the connecting element that are located in coincidence with the breach.

Abstract: A method of detecting a kickback event for a table saw includes operatively connecting a stress sensor to the table saw that is configured to detect a characteristic of a work component of the table saw, the work component being coupled to a workpiece being cut by the table saw during a cutting operation. The stress sensor outputs stress signals indicative of the characteristic of the work component. A speed of the saw blade is then controlled based on the stress signals.

Abstract: A guard device for a saw system in which the table saw is not operated without a saw blade guard, unless a user intends to make a non-through cut in a workpiece. The guard device, in one embodiment, determines whether an adjusted saw blade height corresponds to a thickness of the work piece to be cut and prevents the tool or motor driving the saw blade from operating if the saw blade is adjusted too high, in order to improve work conditions.

Abstract: A miter saw includes a base, a turntable rotatable in relation to the base and including a work piece support surface, a support assembly attached to the turntable, and a saw assembly attached to the support assembly and configured to cut a work piece supported on the turntable. A fence assembly includes an elongate fence body that extends along a first axis. The elongate fence body is supported by the base and positioned over the turntable. The fence body has a first connecting structure, and a fence insert defining an elongate work piece abutment surface and having a second connecting structure. The fence assembly is positionable in a first configuration and a second configuration. In the first configuration, the second connecting structure cooperates with the first connecting structure to secure the fence insert at a first position in relation to the fence body.