Abstract: A method includes measuring raw sensor information of a tool over a period of time with a sensor tag coupled to an external surface of the tool. The method also includes determining one or more events of the tool based on the raw sensor information and calculating an aggregate time for each type of event from the one or more events determined over the period of time. The method also includes wirelessly transmitting a history of the one or more events from the sensor tag to a remote computing device. The history comprises the aggregate time for each type of event from the one or more types of events over the period of time.

Abstract: The A hand-held power tool includes a tool holder 2 for holding a tool and a pneumatic striking mechanism for periodically generating impacts on the tool held in the tool holder. The striking mechanism includes a guiding tube, an exciter piston, a striker, a pneumatic chamber closed by the exciter piston and the striker in the guiding tube, and a compensating opening in the guiding tube for ventilating the pneumatic chamber. A cap covers the compensating opening on an outside of the guiding tube. The cap is open in an opening direction which is largely tangential to the guiding tube.

Abstract: The A hand-held power tool includes a tool holder 2 for holding a tool and a pneumatic striking mechanism for periodically generating impacts on the tool held in the tool holder. The striking mechanism includes a guiding tube, an exciter piston, a striker, a pneumatic chamber closed by the exciter piston and the striker in the guiding tube, and a compensating opening in the guiding tube for ventilating the pneumatic chamber. A cap covers the compensating opening on an outside of the guiding tube. The cap is open in an opening direction which is largely tangential to the guiding tube.

Abstract: A side handle (18) is provided for a handheld power tool (1). The user can grasp the side handle (18) by a grip element (19). A ring-shaped clamp is provided for clamping the side handle (18) onto the handheld power tool (1). The clamp (36) has two ends (32, 33) that can be joined. A pre-tensioned spring (39) presses the joinable ends (32, 33) against a stop (40) in order to join them under a force that acts in an effective direction (29). A release mechanism (41, 43) is held in a normal position by the force of the pre-tensioned spring (29) that acts in the effective direction (29). Against the force of the pre-tensioned spring (39) that acts in the effective direction (29), the user can deflect the release mechanism (41) into a release position in order to cancel the force that presses the joinable ends against the stop.

Abstract: A hand-held power tool is disclosed. The hand-held power tool has a drive and a pneumatic percussive mechanism. The percussive mechanism has a hammer movable along a working axis, a driving piston bound to the drive by a connecting rod, and a pneumatic chamber that couples a movement of the hammer to the driving piston. The connecting rod is suspended from the driving piston so as to swivel about a swiveling axis. A sealing ring encloses in a plane a lateral surface of the driving piston. The swiveling axis lies in the plane.

Abstract: A side handle (18) is provided for a handheld power tool (1). The user can grasp the side handle (18) by a grip element (19). A ring-shaped clamp is provided for clamping the side handle (18) onto the handheld power tool (1). The clamp (36) has two ends (32, 33) that can be joined. A pre-tensioned spring (39) presses the joinable ends (32, 33) against a stop (40) in order to join them under a force that acts in an effective direction (29). A release mechanism (41, 43) is held in a normal position by the force of the pre-tensioned spring (29) that acts in the effective direction (29). Against the force of the pre-tensioned spring (39) that acts in the effective direction (29), the user can deflect the release mechanism (41) into a release position in order to cancel the force that presses the joinable ends against the stop.

Abstract: A pneumatic striking mechanism includes a guide cylinder in which a freely moving piston and an exciter piston are arranged movably along a striking axis. The guide cylinder has a plastic. The striking mechanism includes a pneumatic chamber sealed off by the guide cylinder, by the freely moving piston and by the exciter piston, as well as a drive for periodically moving the exciter piston, as a result of which the freely moving piston is excited to execute a periodical movement between the striking surface and the exciter piston.

Abstract: The tool holder according to the invention for a chipping hammer has a tool receptacle for receiving a tool and a tool securing device for securing the tool in the tool receptacle. The tool securing device provides a shaft having an eccentrically arranged mandrel and at least one end piece and a bar having at least one eye in which the end piece engages in a form-fitting manner. The tool securing device is pivotable into at least one first position for inserting and removing the tool and into at least one second position for securing the tool. The eye has a non-circular cross-section.

Abstract: A portable hand-held power tool (2), especially in the form of a drilling or chisel hammer, includes a drive assembly (8) located in the tool housing (10) for driving a tool spindle (4) along an operational axis (A), a first handle (16) which is rotatable around a first pivotal axis (S1) by a first handle suspension (22), a second handle (20) located on the opposite sides (14.1, 14.2) of the housing which is rotatable around a second pivotal axis (S2) by a second handle suspension (24), and spring elements for retaining the handles (16, 20) in their initial position, with the first and second handle suspensions (22, 24) extending partially circumferentially about the drive assembly (8).

Abstract: A pneumatically striking hand-held power tool is controlled by the following steps. An acceleration (a) along a striking axis (8) of the hand-held power tool (1) is detected. A driving power is reduced if the detected acceleration (a) is greater than a threshold value (A), the threshold value (A) being selected to be greater than maximum acceleration values (a1, a2) that occur on a workpiece during the striking operation of the hand-held power tool (1).

Abstract: An add-on handle connectable to a handheld power tool, including a fastener attachable to a connection area, a hoop-shaped grip for handling purposes, and a locking coupler connecting the grip and the fastener. By rotating the grip, the locking coupler can be moved between an attachment position and a detachment position, the locking coupler having a first coupling part actuatable via the grip and a second coupling part configured to change the position of the fastening element. The first and second coupling parts engage axially with each other, forming a bayonet catch of the locking coupler between the coupling parts. The bayonet catch has an engagement element movable so as to engage with a guide so that, when the engagement element is moved between a first point of the guide and a second point of the guide, the fastener is moved between the attaching position and the detaching position.

Abstract: The tool holder according to the invention for a chipping hammer has a tool receptacle for receiving a tool and a tool securing device for securing the tool in the tool receptacle. The tool securing device provides a shaft having an eccentrically arranged mandrel and at least one end piece and a bar having at least one eye in which the end piece engages in a form-fitting manner. The tool securing device is pivotable into at least one first position for inserting and removing the tool and into at least one second position for securing the tool. The eye has a non-circular cross-section.

Abstract: A hand-held power tool includes two vibration-damped handles (21), two handle attachment axles (31) for securing the two handles (21) on the tool outer housing (12), respectively, and extending at an angle to respective longitudinal axes (23) of respective handles (21), each handle attachment axle being surrounded, at least in some areas, by the mounting section (24) of the respective handle (21), a damping sleeve (31) formed of an elastic material and provided between the mounting section (24) of the respective handle (21) and the respective handle attachment axle (30), with the damping sleeve (31) forming a first damping element, and a damping body (36) provided on a free end (26) of each handle (21) and forming a second damping element and having an extension (D) in a radial, with respect to the handle longitudinal axis, direction that is greater than a minimal radial extension (T) of the handle (21) at its free, second end.

Abstract: An electrical hand-held power tool includes an assembly (2) vibrating along a vibration axis (A) during operation of the power tool, at least one, transversely projecting, vibration-decoupled pivotal side handle (3), a manual switch (4) having an actuation element (5) arranged in the side handle (3) and switchingly connectable with at least one sensor switch (8) which is located in the assembly (2) in vicinity of the handle pivot point (G), by a switching rod (7) having a switching element (6) and being pivotally supported on the side handle at a switching pivot point (S) spaced from the handle pivot point (G) and from the vibration axis (A).

Abstract: A pneumatic striking mechanism includes a guide cylinder in which a freely moving piston and an exciter piston are arranged movably along a striking axis. The guide cylinder has a plastic. The striking mechanism includes a pneumatic chamber sealed off by the guide cylinder, by the freely moving piston and by the exciter piston, as well as a drive for periodically moving the exciter piston, as a result of which the freely moving piston is excited to execute a periodical movement between the striking surface and the exciter piston.

Abstract: A pneumatically striking hand-held power tool is controlled by the following steps. An acceleration (a) along a striking axis (8) of the hand-held power tool (1) is detected. A driving power is reduced if the detected acceleration (a) is greater than a threshold value (A), the threshold value (A) being selected to be greater than maximum acceleration values (a1, a2) that occur on a workpiece during the striking operation of the hand-held power tool (1).

Abstract: An electrical hand-held power tool includes an assembly (2) vibrating along a vibration axis (A) during operation of the power tool, at least one, transversely projecting, vibration-decoupled pivotal side handle (3), a manual switch (4) having an actuation element (5) arranged in the side handle (3) and switchingly connectable with at least one sensor switch (8) which is located in the assembly (2) in vicinity of the handle pivot point (G), by a switching rod (7) having a switching element (6) and being pivotally supported on the side handle at a switching pivot point (S) spaced from the handle pivot point (G) and from the vibration axis (A).

Abstract: A hand-held electrical power tool has at least two shell sections (5a, 5b) arranged in the tool housing (3) and forming a feed opening (6) therebetween through which a power supply cable (7) is inserted, and an elastic flexural protection member (8) which surrounds the power supply cable (7) radially outwardly for securing same in the housing (3) and which is formlockingly secured, over a radial collar (9) provided in a housing interior, in recesses (10) between the two shell sections (5a, 5b), with clamping ribs (12) being provided in at least one (5a) shell section (5a) on an inner side of a respective recess (10) for at least forcelockingly securing the power supply cable (7) on the at least one shell section (5a).

Abstract: A hand-held power tool includes two vibration-damped handles (21), two handle attachment axles (31) for securing the two handles (21) on the tool outer housing (12), respectively, and extending at an angle to respective longitudinal axes (23) of respective handles (21), each handle attachment axle being surrounded, at least in some areas, by the mounting section (24) of the respective handle (21), a damping sleeve (31) formed of an elastic material and provided between the mounting section (24) of the respective handle (21) and the respective handle attachment axle (30), with the damping sleeve (31) forming a first damping element, and a damping body (36) provided on a free end (26) of each handle (21) and forming a second damping element and having an extension (D) in a radial, with respect to the handle longitudinal axis, direction that is greater than a minimal radial extension (T) of the handle (21) at its free, second end.

Abstract: A hand-hand power tool (2), particularly in the form of a hammer drill or chisel hammer, has a driving unit (10) for applying blows to a working tool receptacle (20) along an operational direction (R), an outer housing (8) in which the driving unit (10) is received at least partially, and two handles (30) which are provided at opposite sides (26, 28) of the outer housing (8) and which are displaceable between different positions relative to the tool receptacle (20) for adjusting a gripping height (H), and are locked in a selected position.