摘要:
The invention is based on a handheld power tool switching device with at least one operating unit (12a; 12b; 12c; 12d) for actuating a switching element (14a, 14b, 14c, 14d), which comprises at least one operating element (16a; 16b; 16c; 16d) and at least one lever-like transmission element (18a; 18b; 18c; 18d). It is proposed that the operating unit (12a; 12b; 12c; 12d) should have at least one feeler (20a; 20b; 20c; 20d) coupled to the operating element (16a; 16b; 16c; 16d).
摘要:
The present invention relates to an electric tool (1) having a vibratory means (58) which is provided for imparting a counteracting vibration (103) which counteracts a housing vibration (100) of the electric tool (1), wherein a vibration-relevant characteristic (Wo, 51, Kf, 112-115, 106, 52) of the vibratory means (58) can be adapted during the operation of the electric tool (1) in such a way that the amplitude (104), the phase position and/or the frequency (1/T) of the counteracting vibration (103) varies with a change in the vibration-relevant characteristic. The present invention also relates to an electric tool (1) which is in particular in accordance with the invention and whose vibratory means (58) have a natural frequency which can be varied by variation means of the electric tool (1). The present invention also relates to a method for compensating housing vibrations (100), in particular of the electric tool (1) according to the invention, having a vibratory means (58) which is provided for imparting a counteracting vibration (103) which counteracts a housing vibration (100) of the electric tool (1), wherein the amplitude, the phase position and/or the frequency of the counteracting vibration (103) is varied during the operation of the electric tool (1).
摘要:
The present invention relates to an electric tool (1), comprising a striking mechanism assembly (3), which can be driven in and against a striking direction (4) in a cyclic manner, and a counter-oscillator (5) for compensating for vibrations of the electric tool (1), in particular of housing oscillations, comprising a balancing mass (2), wherein the balancing mass (2) can be driven in a movement direction (6) by driving the striking mechanism assembly (3), wherein the movement direction (6) extends at an angle to the striking direction (4).
摘要:
The invention relates to a clutch device (44, 45, 344, 345, 544, 546) having a central clutch shaft (46, 346, 546), comprising at least two clutch means (51a, 51b, 351a, 351b, 551a, 551b) transmitting a maximum limit torque between an input side and an output side of the clutch device (44, 45, 344, 345, 544, 546). Each of the at least two clutch means (51a, 51b, 351a, 351b, 551a, 551b) comprises a clutch disc (84, 85, 384, 385, 584, 585) having at least one elastic catch element (93, 93a, 93b, 393, 393a, 393b, 593, 593a, 593b) and at least one associated catch profile (89, 89a, 89b, 389, 389a, 389b, 589, 589a, 589b). The invention proposes that the central clutch shaft (46, 346, 546) comprises a torque selection device (97, 397, 597) by means of which at least one of the clutch means (51a, 51b, 351a, 351b, 551a, 551b) can selectively be operationally connected to the input side and the output side of the clutch device (44, 45, 344, 345, 544, 545).
摘要:
The invention relates to a power tool having at least one tool drive shaft (23, 323) for rotationally driving a tool insert (17, 317) changeably received in a tool receptacle of a tool holder (16, 316) and having at least one drive device (14, 314) comprising a gearbox device (20, 320). The power tool has a device for changing operational modes (15, 315) having an operational mode switching element (13, 13a, 313, 313a) for switching between different operational modes provided for the power tool. At least one adjustable clutch device (44, 45, 344, 345) couples the at least one tool drive shaft (23, 323) to the at least one drive device (14, 314) and comprises at least two different limit torques that can be selected by means of a torque selecting device (97, 397). The invention proposes that at least one active component (186, 486) operationally connects the torque selecting device (97, 397) to the device for changing operational modes (15, 315), particularly to the operational mode switching element (13, 13a, 313, 313a), such that the torque selecting device (97, 397) can be actuated by means of the operational mode switching element (13, 13a, 313, 313a).
摘要:
The invention relates to a power tool, particularly an electrically driven hand power tool, having at least one tool drive shaft (22, 322) for directly or indirectly rotationally driving a tool insert. The insert tool is thereby received in a tool holder (16, 316) releasably, particularly interchangeably, connected to the tool drive shaft (22, 322), and can be driven by at least one drive device (14, 134), and at least one clutch device (44, 44a, 44b, 44c, 45, 344, 345) coupling the at least one drive device (14, 314) to the at least one tool drive shaft (22, 322). The clutch device (44, 44a, 44b, 44c, 45, 344, 345) comprises at least two different limit torques, preferably selectable by the user, wherein means (122’, 322’) are provided for resetting the clutch device (44, 44a, 44b, 44c, 45, 344, 345) to a lower, preferably the lowest possible, limit torque when the insert tool and/or the tool holder (16, 316) is changed out.
摘要:
The invention relates to an electric machine tool comprising a device body (10) that is disposed in a housing (11) and a handle (12) in which a switch (13) is arranged. Said switch (13) is indirectly connected to a switching element (14) located in the device body (10) in order to actuate an electric on/off switch (15).
摘要:
An exchangeable tool holding fixture that can be operated very easily is characterized in that at least one displaceably mounted profiled body (15) and at least one profiled recess (7) are shaped and arranged on an output spindle (1) or on the tool holding fixture (11) of the portable power tool in such a manner that when sliding the tool holding fixture (11) onto the output spindle (1), the at least one profiled body (15) engages inside the at least one profiled recess (7) with which both an axial locking as well as rotational drive of the tool holding fixture (11) ensues on the output spindle (1). In addition, means (6, 8, 14) are provided that guide the profiled body (15) into the profiled recess (7) by a rotary and pushing motion of the tool holding fixture (11) on the output spindle (1).